/* ==============================================
   LANDING PAGE STYLES
   ============================================== */

:root {
    /* CoandaCloud Dark Theme - matching simulator colors */
    --primary-blue: #007AFF;
    --primary-blue-dark: #0056CC;
    --primary-blue-light: #4DA6FF;
    --primary-accent: #007AFF;
    
    --secondary-gray: #8E8E93;
    --secondary-gray-light: #6C6C70;
    --secondary-gray-dark: #48484A;
    
    /* Dark surfaces */
    --surface-primary: #0a0a0a;      /* Very dark background */
    --surface-secondary: #1C1C1E;    /* Card backgrounds */
    --surface-tertiary: #2C2C2E;     /* Elevated surfaces */
    --surface-quaternary: #3A3A3C;   /* Interactive elements */
    
    /* Text colors for dark theme */
    --text-primary: #FFFFFF;         /* Primary text */
    --text-secondary: #E5E5E7;       /* Secondary text */
    --text-tertiary: #8E8E93;        /* Tertiary text */
    --text-quaternary: #6C6C70;      /* Disabled text */
    
    /* Status colors */
    --success-green: #30D158;
    --warning-orange: #FF9500;
    --error-red: #FF453A;
    
    /* Borders for dark theme */
    --border-light: #38383A;
    --border-medium: #48484A;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-md: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-medium: 0.3s ease-out;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --font-size-4xl: 48px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    
    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-medium: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

/* ==============================================
   RESET AND BASE STYLES
   ============================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--surface-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ==============================================
   NAVIGATION
   ============================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(28, 28, 30, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: var(--transition-medium);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.brand-logo {
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

.brand-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-blue), var(--success-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-xl);
}

.nav-link {
    font-size: var(--font-size-md);
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    padding: var(--spacing-sm) 0;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-blue);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-blue);
    border-radius: 1px;
}

.nav-auth {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.user-name {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

/* ==============================================
   BUTTONS
   ============================================== */

.btn-primary,
.btn-secondary,
.btn-hero,
.btn-demo {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 500;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary-blue);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-1px);
}

.btn-primary:disabled {
    background: var(--secondary-gray);
    color: var(--text-tertiary);
    cursor: not-allowed;
    transform: none;
}

.btn-primary:disabled:hover {
    background: var(--secondary-gray);
    transform: none;
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
    background: var(--surface-tertiary);
    color: var(--text-primary);
    border-color: var(--primary-blue);
}

.btn-hero {
    background: var(--primary-blue);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: 600;
    border-radius: var(--radius-lg);
}

.btn-hero:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-demo {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: 600;
    border-radius: var(--radius-lg);
}

.btn-demo:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-icon {
    font-size: var(--font-size-lg);
}

.full-width {
    width: 100%;
}

/* ==============================================
   HERO SECTION
   ============================================== */

.hero {
    padding: 120px var(--spacing-lg) var(--spacing-3xl);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* Real Fluid Simulation Background - Right Column */
.hero-visual {
    position: relative;
    animation: slideInRight 0.8s ease-out;
}

.hero-simulation-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
    background: linear-gradient(135deg, 
        #001122 0%, 
        #002244 50%, 
        #003366 100%);
    border-radius: var(--radius-xl);
}

.hero-simulation-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.8;
}

.hero-simulation-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(0, 10, 20, 0.7) 0%, 
        rgba(0, 20, 40, 0.5) 50%, 
        rgba(0, 30, 60, 0.8) 100%);
    z-index: -1;
}

.hero-sea-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -2;
}

.hero-sea-video {
    width: 100%;
    max-width: 1500px;
    height: 100%;
    object-fit: contain;
    object-position: center;
    opacity: 0.8;
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.hero-sea-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 80%;
    height: 80%;
    background: linear-gradient(135deg, 
        rgba(10, 10, 10, 0.5) 0%, 
        rgba(10, 10, 10, 0.3) 50%, 
        rgba(10, 10, 10, 0.6) 100%);
    z-index: -1;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    position: relative;
    z-index: 1;
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.hero-content {
    animation: slideInLeft 0.8s ease-out;
    text-align: center;
    max-width: 800px;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.hero-highlight {
    color: var(--primary-blue);
    display: block;
}

.hero-description {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.hero-features {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.badge-icon {
    font-size: var(--font-size-md);
}

/* ==============================================
   SIMULATION PREVIEW
   ============================================== */

.hero-visual {
    animation: slideInRight 0.8s ease-out;
}

/* Demo Card */
.demo-card {
    background: var(--surface-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
}

.demo-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.demo-card-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.demo-badge {
    background: var(--primary-blue);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.demo-viewport {
    position: relative;
    background: var(--surface-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.demo-viewport video {
    width: 100%;
    height: 100%;
    min-height: 500px;
    display: block;
    object-fit: cover;
    object-position: center;
    border-radius: var(--radius-sm);
}

.demo-try-button {
    width: 100%;
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.demo-try-button:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.demo-try-button {
    width: 100%;
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.demo-try-button:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.simulation-preview {
    position: relative;
    background: var(--surface-secondary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.demo-container {
    padding: var(--spacing-lg);
    background: var(--surface-secondary);
}

.demo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

.demo-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.demo-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success-green);
    animation: pulse 2s infinite;
}

.status-dot.running {
    background: var(--primary-blue);
}

.demo-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-left: var(--spacing-md);
}

.demo-viewport {
    position: relative;
    overflow: hidden;
    height: 600px;
    width: 100%;
}

#demoCanvas {
    width: 100%;
    height: auto;
    display: block;
    background: linear-gradient(45deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
}

.demo-features {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.feature-highlight {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(28, 28, 30, 0.9);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    opacity: 0.7;
    transition: all var(--transition-medium);
    transform: translateX(-10px);
}

.feature-highlight.active {
    opacity: 1;
    transform: translateX(0);
    border-color: var(--primary-blue);
    color: var(--text-primary);
}

.feature-icon {
    font-size: var(--font-size-md);
}

.demo-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.control-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.control-slider {
    position: relative;
    height: 4px;
    background: var(--border-medium);
    border-radius: 2px;
    cursor: pointer;
}

.slider-track {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 60%;
    background: var(--primary-blue);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.slider-thumb {
    position: absolute;
    top: -6px;
    width: 16px;
    height: 16px;
    background: var(--primary-blue);
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
    cursor: pointer;
}

.slider-thumb:hover {
    transform: scale(1.2);
}

.control-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.control-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--surface-secondary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.control-btn:hover {
    background: var(--surface-quaternary);
    color: var(--text-primary);
}

.control-btn.active {
    background: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
}

.demo-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
}

.demo-stats .stat {
    text-align: center;
    padding: var(--spacing-sm);
}

.demo-stats .stat-value {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-blue);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.demo-stats .stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.preview-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-medium);
    cursor: pointer;
}

.simulation-preview:hover .preview-overlay {
    opacity: 1;
}

.play-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    color: white;
    transition: var(--transition-fast);
}

.play-button span {
    width: 80px;
    height: 80px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    color: white;
    box-shadow: var(--shadow-lg);
}

.play-button:hover span {
    transform: scale(1.1);
    background: var(--primary-blue-light);
}

.play-text {
    font-size: var(--font-size-lg);
    font-weight: 600;
    text-align: center;
}

/* ==============================================
   SECTIONS
   ============================================== */

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ==============================================
   ABOUT SECTION
   ============================================== */

.about {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--surface-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.about-item h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.about-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--surface-tertiary);
    border-radius: var(--radius-lg);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--surface-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

/* ==============================================
   FEATURES SECTION
   ============================================== */

.features {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--surface-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
}

.feature-card {
    background: var(--surface-secondary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: var(--transition-medium);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.feature-card.highlight {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    border: 1px solid var(--primary-blue);
}

.feature-card.highlight:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 122, 255, 0.3);
}

.feature-button {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-medium);
    margin-top: var(--spacing-md);
}

.feature-button:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

/* ==============================================
   PRICING SECTION
   ============================================== */

.pricing {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--surface-primary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.pricing-card {
    background: var(--surface-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    position: relative;
    transition: var(--transition-medium);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.pricing-card.popular {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 2px rgba(0, 122, 255, 0.1);
    transform: scale(1.05);
}

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-8px);
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-blue), var(--success-green));
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.plan-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.plan-name {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.price {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-blue);
}

.period {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    font-weight: 500;
}

.plan-description {
    color: var(--text-secondary);
    font-size: var(--font-size-md);
    line-height: 1.5;
}

.plan-features {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-md);
    color: var(--text-secondary);
}

.feature-icon {
    color: var(--success-green);
    font-weight: bold;
    font-size: var(--font-size-lg);
    width: 20px;
    text-align: center;
}

.plan-button {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    border: 2px solid var(--border-medium);
    background: transparent;
    color: var(--text-primary);
}

.plan-button:hover {
    background: var(--surface-tertiary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.plan-button.primary {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: white;
}

.plan-button.primary:hover {
    background: var(--primary-blue-dark);
    border-color: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ==============================================
   STARTUP & ACADEMIC PLAN BANNERS
   ============================================== */

/* Startup Plan Banner */
.startup-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: var(--spacing-2xl) 0;
    border-radius: 16px;
    padding: var(--spacing-xl);
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: var(--transition-medium);
    min-height: 200px;
    display: flex;
    align-items: center;
}

.startup-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.startup-banner:hover {
    transform: translateY(-2px);
    box-shadow: 0 25px 50px rgba(102, 126, 234, 0.15);
}

.startup-banner-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.startup-banner-left {
    flex: 1;
    min-width: 280px;
}

.startup-badge-large {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.startup-banner-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.startup-banner-subtitle {
    font-size: var(--font-size-md);
    opacity: 0.9;
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

.startup-features-inline {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.startup-feature {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    opacity: 0.95;
}

.startup-banner-right {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    min-width: 200px;
    flex: 0 0 auto;
}

.startup-pricing {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    min-height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.startup-pricing .price-main {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    line-height: 1;
}

.startup-pricing .price-period {
    font-size: var(--font-size-lg);
    opacity: 0.8;
}

.startup-original-price {
    font-size: var(--font-size-lg);
    opacity: 0.7;
    text-decoration: line-through;
}

.startup-apply-button {
    background: white;
    color: #667eea;
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    font-size: var(--font-size-lg);
    transition: var(--transition-fast);
    box-shadow: var(--shadow-lg);
    border: 2px solid transparent;
    min-width: 200px;
}

.startup-apply-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: rgba(255, 255, 255, 0.95);
}

.startup-verification-note {
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-sm);
    opacity: 0.8;
    text-align: center;
}

/* Academic Plan Banner */
.academic-banner {
    background: linear-gradient(135deg, #1A237E 0%, #3949AB 100%);
    margin: var(--spacing-2xl) 0;
    border-radius: 16px;
    padding: var(--spacing-xl);
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: var(--transition-medium);
    min-height: 200px;
    display: flex;
    align-items: center;
}

.academic-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.academic-banner:hover {
    transform: translateY(-2px);
    box-shadow: 0 25px 50px rgba(26, 35, 126, 0.15);
}

.academic-banner-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.academic-banner-left {
    flex: 1;
    min-width: 280px;
}

.academic-badge-large {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.academic-banner-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.academic-banner-subtitle {
    font-size: var(--font-size-md);
    opacity: 0.9;
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

.academic-features-inline {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.academic-feature {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    opacity: 0.95;
}

.academic-banner-right {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    min-width: 200px;
    flex: 0 0 auto;
}

.academic-pricing {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    min-height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.academic-pricing .discount-main {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    line-height: 1;
}

.academic-pricing .discount-text {
    font-size: var(--font-size-lg);
    opacity: 0.8;
}

.academic-original-price {
    font-size: var(--font-size-lg);
    opacity: 0.7;
}

.academic-apply-button {
    background: white;
    color: #1A237E;
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    font-size: var(--font-size-lg);
    transition: var(--transition-fast);
    box-shadow: var(--shadow-lg);
    border: 2px solid transparent;
    min-width: 200px;
}

.academic-apply-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: rgba(255, 255, 255, 0.95);
}

.academic-verification-note {
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-sm);
    opacity: 0.8;
    text-align: center;
}

/* ==============================================
   RESPONSIVE PLAN BANNERS
   ============================================== */

@media (max-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .startup-banner-title,
    .academic-banner-title {
        font-size: var(--font-size-2xl);
    }
}

@media (max-width: 768px) {
    .startup-banner-content,
    .academic-banner-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .startup-banner-left,
    .academic-banner-left {
        min-width: auto;
    }
    
    .startup-banner-right,
    .academic-banner-right {
        min-width: auto;
        width: 100%;
        margin-left: 0; /* Reset margin on mobile for academic banner */
    }
    
    .startup-banner-title,
    .academic-banner-title {
        font-size: var(--font-size-xl);
    }
    
    .startup-features-inline,
    .academic-features-inline {
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .startup-apply-button,
    .academic-apply-button {
        width: 100%;
        max-width: 280px;
    }
}

.academic-info {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-2xl);
    background: var(--surface-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
}

.academic-info-content h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-xl);
}

.academic-info-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.academic-requirements {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.requirement-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-md);
    color: var(--text-secondary);
}

.requirement-icon {
    color: var(--success-green);
    font-weight: bold;
    width: 20px;
    text-align: center;
}

/* Academic Modal Styles */
.academic-modal {
    max-width: 600px;
    max-height: 90vh;
    overflow: visible;
}

.academic-modal .modal-body {
    max-height: 70vh;
    overflow-y: auto;
}

.academic-intro {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background: var(--surface-tertiary);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--success-green);
}

.academic-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.academic-form .form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.academic-form label {
    color: var(--text-primary);
    font-weight: 500;
    font-size: var(--font-size-md);
}

.academic-form input,
.academic-form select,
.academic-form textarea {
    padding: var(--spacing-md);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    background: var(--surface-tertiary);
    color: var(--text-primary);
    font-size: var(--font-size-md);
    transition: var(--transition-fast);
}

.academic-form input:focus,
.academic-form select:focus,
.academic-form textarea:focus {
    outline: none;
    border-color: var(--success-green);
    box-shadow: 0 0 0 2px rgba(48, 209, 88, 0.1);
}

.form-hint {
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

.academic-terms {
    margin: var(--spacing-lg) 0;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    cursor: pointer;
    color: var(--text-secondary);
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin: 0;
    accent-color: var(--success-green);
}

.academic-status-info {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: var(--surface-tertiary);
    border-radius: var(--radius-lg);
}

.academic-status-info h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-lg);
}

.status-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.status-step {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--success-green);
    color: white;
    border-radius: 50%;
    font-size: var(--font-size-sm);
    font-weight: 600;
    flex-shrink: 0;
}

.step-text {
    color: var(--text-secondary);
    font-size: var(--font-size-md);
}

/* ==============================================
   CONTACT SECTION
   ============================================== */

.contact {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--surface-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.contact-item {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.contact-icon {
    font-size: var(--font-size-2xl);
    width: 48px;
    height: 48px;
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.contact-details p {
    color: var(--text-secondary);
}

/* ==============================================
   FORMS
   ============================================== */

.form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.form-input {
    padding: var(--spacing-md);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-family: inherit;
    transition: var(--transition-fast);
    background: var(--surface-tertiary);
    color: var(--text-primary);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.form-input::placeholder {
    color: var(--text-tertiary);
}

textarea.form-input {
    resize: vertical;
    min-height: 120px;
}

.form-help {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
    line-height: 1.4;
}

.form-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.form-hint {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
    line-height: 1.4;
}

input[type="file"].form-input {
    padding: var(--spacing-sm);
    background: var(--surface-secondary);
    border: 2px dashed var(--border-medium);
    display: block;
    width: 100%;
    margin-bottom: var(--spacing-xs);
}

input[type="file"].form-input:hover {
    border-color: var(--primary-blue);
    background: var(--surface-tertiary);
}

input[type="file"].form-input + .form-hint {
    display: block;
    margin-top: var(--spacing-xs);
    clear: both;
}

/* ==============================================
   FOOTER
   ============================================== */

.footer {
    background: var(--surface-primary);
    color: var(--text-primary);
    padding: var(--spacing-2xl) var(--spacing-lg) var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-brand .brand-name {
    background: linear-gradient(135deg, var(--primary-blue), var(--success-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

.footer-bottom p {
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
}

/* ==============================================
   MODAL
   ============================================== */

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-medium);
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--surface-secondary);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 480px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    transform: translateY(20px);
    transition: var(--transition-medium);
}

.modal.show .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-light);
}

.modal-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: var(--surface-tertiary);
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--surface-quaternary);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-xl);
}

.auth-switch {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

.auth-switch a {
    color: var(--primary-blue);
    font-weight: 500;
}

.auth-switch a:hover {
    text-decoration: underline;
}

/* ==============================================
   DEVELOPMENT NOTICE & NEWSLETTER
   ============================================== */

.development-notice {
    background: var(--surface-tertiary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    border-left: 4px solid var(--warning-orange);
}

.development-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    display: block;
}

.development-notice h4 {
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.development-notice p {
    color: var(--text-secondary);
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.newsletter-section {
    background: var(--surface-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.newsletter-section h5 {
    color: var(--primary-blue);
    font-size: var(--font-size-md);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.newsletter-section p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

/* ==============================================
   PASSWORD REQUIREMENTS
   ============================================== */

.password-requirements {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--surface-tertiary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    display: none;
}

.password-requirements.show {
    display: block;
}

.requirement-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.requirement-item:last-child {
    margin-bottom: 0;
}

.requirement-item.valid {
    color: var(--success-green);
}

.requirement-item.invalid {
    color: var(--text-tertiary);
}

.requirement-icon {
    font-size: var(--font-size-sm);
    font-weight: bold;
    width: 16px;
    text-align: center;
    transition: var(--transition-fast);
}

.requirement-icon::before {
    content: '○';
    color: var(--text-tertiary);
}

.requirement-item.valid .requirement-icon::before {
    content: '✓';
    color: var(--success-green);
}

.requirement-item.invalid .requirement-icon::before {
    content: '○';
    color: var(--text-tertiary);
}

/* ==============================================
   PASSWORD VISIBILITY TOGGLE
   ============================================== */

.password-input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input {
    padding-right: 45px;
    flex: 1;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
}

.password-toggle:hover {
    background: var(--surface-quaternary);
}

.password-toggle:focus {
    outline: none;
    background: var(--surface-quaternary);
    box-shadow: 0 0 0 2px rgba(0, 122, 255, 0.3);
}

.eye-icon {
    width: 18px;
    height: 18px;
    position: relative;
    display: block;
    transition: var(--transition-fast);
}

.eye-icon::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 12px;
    border: 2px solid var(--text-secondary);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: var(--transition-fast);
}

.eye-icon::after {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--text-secondary);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: var(--transition-fast);
}

.password-toggle:hover .eye-icon::before,
.password-toggle:hover .eye-icon::after {
    border-color: var(--text-primary);
    background: var(--text-primary);
}

.password-toggle.visible .eye-icon::before {
    border-color: var(--text-secondary);
    background: transparent;
    border-style: solid;
    border-width: 2px 0 0 0;
    border-radius: 0;
    width: 20px;
    height: 0;
    transform: translate(-50%, -50%) rotate(25deg);
}

.password-toggle.visible .eye-icon::after {
    opacity: 0;
}

/* ==============================================
   NOTIFICATIONS
   ============================================== */

.notification {
    position: fixed;
    top: 100px;
    right: var(--spacing-lg);
    background: var(--surface-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    color: var(--text-primary);
    z-index: 10001;
    transform: translateX(100%);
    opacity: 0;
    transition: var(--transition-medium);
    max-width: 400px;
}

.notification.show {
    transform: translateX(0);
    opacity: 1;
}

.notification.success {
    border-left: 4px solid var(--success-green);
}

.notification.error {
    border-left: 4px solid var(--error-red);
}

.notification.warning {
    border-left: 4px solid var(--warning-orange);
}

/* ==============================================
   EMAIL VERIFICATION PAGE
   ============================================== */

.verification-main {
    min-height: 100vh;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.verification-container {
    max-width: 600px;
    width: 100%;
}

.verification-card {
    background: var(--surface-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xxl) var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
    border: 1px solid var(--border-light);
}

.verification-card.error {
    border-left: 4px solid var(--error-red);
}

.verification-icon {
    margin-bottom: var(--spacing-lg);
    font-size: 4rem;
}

.verification-icon.loading .spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-light);
    border-top: 4px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.verification-icon.success .checkmark,
.verification-icon.error .error-mark,
.verification-icon.resend .email-icon {
    font-size: 4rem;
    display: block;
}

.verification-card h1 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.verification-card p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.verification-features {
    margin: var(--spacing-xl) 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.feature-item {
    padding: var(--spacing-md);
    background: var(--surface-secondary);
    border-radius: var(--radius-md);
    text-align: center;
}

.feature-item .feature-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.feature-item h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.feature-item p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0;
}

.verification-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.verification-actions .btn-hero,
.verification-actions .btn-secondary {
    min-width: 160px;
}

/* Form styling in verification page */
.verification-card .form-group {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.verification-card .form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-primary);
}

.verification-card .form-group input {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.verification-card .form-group input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

/* Responsive design for verification page */
@media (max-width: 768px) {
    .verification-main {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .verification-card {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
    
    .verification-card h1 {
        font-size: 1.5rem;
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .verification-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .verification-actions .btn-hero,
    .verification-actions .btn-secondary {
        width: 100%;
        max-width: 300px;
    }
}

/* ==============================================
   ACCOUNT SETTINGS
   ============================================== */

.account-settings-content {
    width: 95%;
    max-width: 900px;
    max-height: 85vh;
}

.account-settings-body {
    max-height: 70vh;
    overflow-y: auto;
    padding: var(--spacing-xl);
}

.settings-section {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-light);
}

.settings-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.settings-section h4 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.settings-content {
    background: var(--surface-tertiary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.current-plan-card {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-lg);
    align-items: start;
}

.plan-info h5 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.plan-price {
    color: var(--primary-blue);
    font-size: var(--font-size-md);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.plan-features-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.feature-item-compact {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.plan-actions-vertical {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    min-width: 150px;
}

.danger-zone {
    border-color: var(--error-red);
}

.danger-zone h4 {
    color: var(--error-red);
}

.danger-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.btn-critical {
    background: var(--error-red);
    border-color: var(--error-red);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    border: 1px solid;
}

.btn-critical:hover {
    background: #CC1A11;
    border-color: #CC1A11;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

/* ==============================================
   ACADEMIC STATUS SYSTEM
   ============================================== */

.academic-status {
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-light);
}

.academic-status.verified {
    background: rgba(48, 209, 88, 0.1);
    border-color: var(--success-green);
}

.academic-status.pending {
    background: rgba(255, 159, 10, 0.1);
    border-color: var(--warning-orange);
}

.academic-status.not-applied {
    background: var(--surface-secondary);
}

.status-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.status-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.verified {
    background: var(--success-green);
    color: white;
}

.status-badge.pending {
    background: var(--warning-orange);
    color: white;
}

.status-date {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

.academic-details {
    margin-bottom: var(--spacing-md);
}

.academic-details p {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.academic-intro h6,
.academic-benefits h6 {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.academic-intro p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.benefit-item {
    font-size: var(--font-size-sm);
    color: var(--success-green);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.pending-message {
    background: rgba(255, 159, 10, 0.1);
    border: 1px solid var(--warning-orange);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.pending-message p {
    color: var(--text-secondary);
    margin: 0;
}

/* ==============================================
   ACADEMIC APPLICATION MODAL
   ============================================== */

.academic-application-content {
    width: 95%;
    max-width: 800px;
    max-height: 90vh;
}

.academic-application-intro {
    background: linear-gradient(135deg, var(--primary-blue), var(--success-green));
    color: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.academic-application-intro h5 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.academic-application-intro p {
    opacity: 0.9;
    margin: 0;
}

.form-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.form-section h6 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-light);
}

.form-help {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
    display: block;
}

.academic-terms {
    background: var(--surface-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    cursor: pointer;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-blue);
    margin: 0;
    flex-shrink: 0;
}

.academic-benefits-summary {
    background: var(--surface-tertiary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.academic-benefits-summary h6 {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.benefit-card {
    background: var(--surface-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    text-align: center;
    transition: var(--transition-fast);
}

.benefit-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    display: block;
}

.benefit-text {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.3;
}

.benefit-text small {
    color: var(--text-tertiary);
    font-weight: normal;
}

/* ==============================================
   SIMULATION MANAGEMENT
   ============================================== */

.simulation-item {
    background: var(--surface-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: var(--transition-medium);
    margin-bottom: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.simulation-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.simulation-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-md) 0;
}

.simulation-name-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.simulation-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
    margin: 0;
    flex: 1;
}

.edit-name-btn {
    background: transparent;
    border: none;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    cursor: pointer;
    opacity: 0;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    color: var(--text-secondary);
}

.edit-name-btn:hover {
    background: var(--surface-tertiary);
    color: var(--primary-blue);
    transform: scale(1.1);
}

.simulation-name-container:hover .edit-name-btn {
    opacity: 1;
}

.edit-icon {
    font-size: 12px;
    line-height: 1;
}

.simulation-description {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    font-style: italic;
    line-height: 1.3;
}

.simulation-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    line-height: 1.2;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.simulation-status {
    flex-shrink: 0;
}

.status-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.ready {
    background: rgba(48, 209, 88, 0.2);
    color: var(--success-green);
    border: 1px solid var(--success-green);
}

.status-badge.running {
    background: rgba(0, 122, 255, 0.2);
    color: var(--primary-blue);
    border: 1px solid var(--primary-blue);
    animation: pulse 2s infinite;
}

.status-badge.paused {
    background: rgba(255, 159, 10, 0.2);
    color: var(--warning-orange);
    border: 1px solid var(--warning-orange);
}

.status-badge.complete {
    background: rgba(48, 209, 88, 0.2);
    color: var(--success-green);
    border: 1px solid var(--success-green);
}

.status-badge.error {
    background: rgba(255, 69, 58, 0.2);
    color: var(--error-red);
    border: 1px solid var(--error-red);
}

.simulation-details {
    margin-bottom: var(--spacing-sm);
    padding: 0 var(--spacing-md);
}

.simulation-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
}

.stat-group {
    text-align: center;
    padding: var(--spacing-xs);
}

.stat-value {
    display: block;
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 2px;
    line-height: 1.2;
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    line-height: 1.1;
}

.simulation-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.tag {
    background: rgba(0, 122, 255, 0.1);
    color: var(--primary-blue);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border: 1px solid rgba(0, 122, 255, 0.3);
}

.simulation-progress {
    background: var(--surface-tertiary);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs);
}

.progress-info {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.progress-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    line-height: 1.2;
}

.progress-label::before {
    content: '●';
    color: var(--success-green);
}

.progress-label:contains('Pending')::before {
    color: var(--text-tertiary);
}

.simulation-actions {
    display: flex;
    gap: var(--spacing-xs);
    border-top: 1px solid var(--border-light);
    padding: var(--spacing-md) 0;
    margin-top: auto;
    width: 100%;
    box-sizing: border-box;
}

.simulation-actions .btn-primary {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    flex: 1;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.simulation-actions .btn-secondary {
    background: transparent;
    border-color: var(--border-medium);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    flex: 1;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.simulation-actions .btn-secondary:hover {
    background: var(--surface-tertiary);
    color: var(--text-primary);
}

.simulation-actions .btn-secondary.delete {
    color: var(--error-red);
    border-color: var(--error-red);
}

.simulation-actions .btn-secondary.delete:hover {
    background: var(--error-red);
    color: white;
}

/* ==============================================
   SIMULATION SETTINGS MODAL
   ============================================== */

.simulation-settings-content {
    width: 95%;
    max-width: 1000px;
    max-height: 90vh;
}

.simulation-settings-body {
    max-height: 75vh;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.settings-section {
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.settings-section h4 {
    background: var(--surface-tertiary);
    padding: var(--spacing-md) var(--spacing-lg);
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-light);
}

.settings-content {
    padding: var(--spacing-lg);
    background: var(--surface-secondary);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.form-row.two-col {
    grid-template-columns: repeat(2, 1fr);
}

.form-row.single-col {
    grid-template-columns: 1fr;
}

.form-field {
    display: flex;
    flex-direction: column;
}

.form-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.form-input {
    background: var(--surface-tertiary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.form-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border-medium);
    outline: none;
}

.form-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-blue);
    cursor: pointer;
    border: 2px solid white;
    box-shadow: var(--shadow-sm);
}

.form-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-blue);
    cursor: pointer;
    border: 2px solid white;
    box-shadow: var(--shadow-sm);
}

.slider-value {
    font-size: var(--font-size-xs);
    color: var(--primary-blue);
    font-weight: 600;
    margin-left: var(--spacing-sm);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-blue);
}

/* ==============================================
   DASHBOARD PLAN MANAGEMENT
   ============================================== */

.dashboard-user-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.current-plan {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.plan-badge-small {
    background: linear-gradient(135deg, var(--primary-blue), var(--success-green));
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.plan-price-small {
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.user-plan {
    font-size: var(--font-size-xs);
    color: var(--primary-blue);
    font-weight: 500;
    background: rgba(0, 122, 255, 0.1);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-left: var(--spacing-sm);
}

.plan-management {
    background: var(--surface-tertiary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-lg);
    align-items: center;
}

.current-plan-details h5 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.current-plan-details p {
    color: var(--primary-blue);
    font-size: var(--font-size-md);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.plan-features-compact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.feature-compact {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.plan-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.plan-change-summary {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
}

.plan-change-item h5 {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.plan-summary {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--surface-secondary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.plan-summary.highlight {
    border-color: var(--primary-blue);
    background: rgba(0, 122, 255, 0.1);
}

.plan-summary .plan-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.plan-summary .plan-price {
    font-size: var(--font-size-md);
    color: var(--primary-blue);
    font-weight: 500;
}

.plan-change-arrow {
    font-size: var(--font-size-2xl);
    color: var(--primary-blue);
    font-weight: bold;
}

.plan-change-details {
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.plan-change-details h5 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.new-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

/* ==============================================
   ANIMATIONS
   ============================================== */

@keyframes highlightSection {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 122, 255, 0.4);
    }
    50% {
        box-shadow: 0 0 0 20px rgba(0, 122, 255, 0.1);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(0, 122, 255, 0);
    }
}

/* ==============================================
   ANIMATIONS
   ============================================== */

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ==============================================
   RESPONSIVE DESIGN
   ============================================== */

@media (max-width: 768px) {
    .nav-container {
        padding: 0 var(--spacing-md);
        height: 64px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero {
        padding: 100px var(--spacing-md) var(--spacing-2xl);
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .pricing-card.popular {
        transform: none;
    }
    
    .pricing-card.popular:hover {
        transform: translateY(-8px);
    }
    
    .section-container {
        padding: 0 var(--spacing-md);
    }
    
    .modal-content {
        margin: var(--spacing-md);
        width: calc(100% - var(--spacing-xl));
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .plan-management {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .plan-change-summary {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .plan-change-arrow {
        transform: rotate(90deg);
    }
    
    .current-plan-card {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .plan-actions-vertical {
        min-width: auto;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .danger-actions {
        flex-direction: column;
    }
    
    .simulation-header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .simulation-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .simulation-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .simulation-actions {
        gap: var(--spacing-xs);
        padding: var(--spacing-sm);
    }
    
    .simulation-actions .btn-secondary,
    .simulation-actions .btn-primary {
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .simulation-actions {
        gap: 2px;
        padding: var(--spacing-xs);
    }
    
    .simulation-actions .btn-secondary,
    .simulation-actions .btn-primary {
        font-size: 10px;
        padding: var(--spacing-xs) 2px;
    }
}

/* ==============================================
   COLLABORATION MODAL
   ============================================== */

.collaboration-content {
    width: 95%;
    max-width: 800px;
    max-height: 90vh;
}

.collaboration-body {
    max-height: 75vh;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.collaboration-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.collaboration-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.collaborators-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.collaborator-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--surface-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.collaborator-info {
    flex: 1;
}

.collaborator-name {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.collaborator-email {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.collaborator-status {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.permission-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.permission-badge.owner {
    background: linear-gradient(135deg, var(--primary-blue), var(--success-green));
    color: white;
}

.permission-badge.admin {
    background: rgba(255, 69, 58, 0.2);
    color: var(--error-red);
    border: 1px solid var(--error-red);
}

.permission-badge.edit {
    background: rgba(255, 159, 10, 0.2);
    color: var(--warning-orange);
    border: 1px solid var(--warning-orange);
}

.permission-badge.view {
    background: rgba(48, 209, 88, 0.2);
    color: var(--success-green);
    border: 1px solid var(--success-green);
}

.permission-badge.reviewer {
    background: rgba(0, 122, 255, 0.2);
    color: var(--primary-blue);
    border: 1px solid var(--primary-blue);
}

.permission-badge.designer {
    background: rgba(175, 82, 222, 0.2);
    color: #AF52DE;
    border: 1px solid #AF52DE;
}

.status-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: capitalize;
}

.status-badge.accepted {
    background: rgba(48, 209, 88, 0.1);
    color: var(--success-green);
}

.status-badge.pending {
    background: rgba(255, 159, 10, 0.1);
    color: var(--warning-orange);
}

.collaborator-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-secondary.small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
}

.invite-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.invite-form .form-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-md);
}

.collaboration-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.collaboration-features .feature-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    padding: var(--spacing-md);
    background: var(--surface-secondary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.collaboration-features .feature-icon {
    font-size: var(--font-size-xl);
    flex-shrink: 0;
    width: 40px;
    text-align: center;
}

.collaboration-features .feature-item strong {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--text-primary);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.collaboration-features .feature-item p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.4;
}

.empty-collaborators {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
}

.empty-collaborators .empty-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    opacity: 0.7;
}

.loading-state {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-secondary);
    font-style: italic;
}

/* ==============================================
   USAGE TRACKING STYLES
   ============================================== */

.usage-overview h5,
.usage-stats h5,
.billing-info h5 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-light);
}

.usage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.usage-item {
    background: var(--surface-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.usage-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.usage-label {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--text-primary);
}

.usage-value {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.usage-bar {
    width: 100%;
    height: 8px;
    background: var(--border-medium);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.usage-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--success-green), var(--primary-blue));
    border-radius: 4px;
    transition: width 0.3s ease;
}

.usage-progress[style*="width: 8"], .usage-progress[style*="width: 9"] {
    background: linear-gradient(90deg, var(--warning-orange), var(--error-red));
}

.usage-percent {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    font-weight: 500;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--surface-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    font-size: var(--font-size-xl);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.stat-content {
    flex: 1;
}

.stat-number {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xs);
    line-height: 1.2;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
    line-height: 1.3;
}

.billing-info {
    background: var(--surface-tertiary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.billing-details {
    margin-bottom: var(--spacing-lg);
}

.billing-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
    font-size: var(--font-size-sm);
}

.billing-row:last-child {
    border-bottom: none;
}

.billing-row span:first-child {
    color: var(--text-secondary);
    font-weight: 500;
}

.billing-row span:last-child {
    color: var(--text-primary);
    font-weight: 600;
}

.billing-actions,
.usage-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.billing-actions .btn-secondary,
.usage-actions .btn-secondary {
    flex: 1;
    min-width: 150px;
}

/* ==============================================
   MODAL STYLES
   ============================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-content {
    background: var(--surface-secondary);
    border: 1px solid var(--border-medium);
    border-radius: 16px;
    padding: 0;
    width: 90%;
    max-width: 480px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.modal.show .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: 24px 24px 16px 24px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 600;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: 24px;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--surface-quaternary);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

/* ==============================================
   FILE PREVIEW FOR CONTACT FORM
   ============================================== */

.file-preview-container {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--surface-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
}

.file-preview-header {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
}

.file-preview-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.file-preview-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm);
    background: var(--surface-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xs);
    transition: all 0.2s ease;
}

.file-preview-item:hover {
    background: var(--surface-tertiary);
}

.file-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
    min-width: 0;
}

.file-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--primary-blue);
}

.file-details {
    flex: 1;
    min-width: 0;
}

.file-name {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-size {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    margin-top: 1px;
}

.file-delete-btn {
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: 18px;
    cursor: pointer;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
    padding: 0;
}

.file-delete-btn:hover {
    background: #fee2e2;
    color: #dc2626;
}

.file-delete-btn:active {
    transform: scale(0.95);
}

/* Responsive file preview */
@media (max-width: 768px) {
    .file-preview-item {
        padding: var(--spacing-xs);
    }
    
    .file-name {
        font-size: 0.85rem;
    }
    
    .file-size {
        font-size: 0.75rem;
    }
}

/* ==============================================
   MODAL BASE STYLES
   ============================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    animation: fadeIn 0.3s ease-out;
}

.modal.show {
    display: flex;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    background: var(--surface-secondary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease-out;
    position: relative;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

.modal-header h2 {
    margin: 0;
    color: var(--text-primary);
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

.modal-close {
    background: var(--error-red);
    border: 1px solid var(--error-red);
    color: white;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.2s ease;
    margin-left: var(--spacing-md);
    flex-shrink: 0;
}

.modal-close:hover {
    background: #ff6961;
    border-color: #ff6961;
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(255, 69, 58, 0.3);
}

/* ==============================================
   CREDITS STYLES
   ============================================== */

/* Credits Contact Item */
.contact-item a {
    transition: color 0.2s ease;
}

.contact-item a:hover {
    color: var(--primary-blue) !important;
}

/* Credits Modal Specific Styles */
#creditsModal .modal-content {
    max-width: 750px;
    max-height: 85vh;
}

.credits-content {
    max-height: 60vh;
    overflow-y: auto;
    padding-right: 8px;
}

.credits-section {
    margin-bottom: 32px;
}

.credits-section:last-child {
    margin-bottom: 0;
}

.credits-section h4 {
    color: var(--primary-blue);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-light);
}

.credit-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 12px;
    padding: 14px;
    background: var(--surface-primary);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--primary-blue);
    transition: all 0.2s ease;
}

.credit-item:hover {
    background: var(--surface-tertiary);
    transform: translateX(4px);
}

.credit-item strong {
    color: var(--text-primary);
    font-weight: 600;
    min-width: 160px;
    margin-right: 12px;
    font-size: var(--font-size-sm);
}

.credit-item:last-child {
    margin-bottom: 0;
}

.credits-footer {
    margin-top: 32px;
    padding: 24px;
    background: var(--surface-tertiary);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-light);
}

.credits-footer p {
    margin: 8px 0;
    font-size: var(--font-size-sm);
}

.credits-footer p:first-child {
    color: var(--text-primary);
    font-weight: 600;
    font-size: var(--font-size-md);
}

.credits-footer p:last-child {
    color: var(--text-secondary);
    font-style: italic;
}

/* Custom scrollbar for credits content */
.credits-content::-webkit-scrollbar {
    width: 6px;
}

.credits-content::-webkit-scrollbar-track {
    background: var(--surface-primary);
    border-radius: 3px;
}

.credits-content::-webkit-scrollbar-thumb {
    background: var(--primary-blue);
    border-radius: 3px;
}

.credits-content::-webkit-scrollbar-thumb:hover {
    background: var(--primary-blue-dark);
}

/* Icon Credits Specific Styles */
.icon-credits-container h4 {
    color: var(--primary-blue);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-light);
}

.icon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 8px;
    margin-bottom: 20px;
}

.icon-credit-item {
    padding: 8px 12px;
    background: var(--surface-primary);
    border-radius: 6px;
    border-left: 2px solid var(--primary-blue);
    font-size: 13px;
}

.icon-credit-item strong {
    color: var(--text-primary);
    font-weight: 500;
}

/* Responsive credits styles */
@media (max-width: 768px) {
    .credits-modal {
        max-width: 95%;
        margin: 20px;
    }
    
    .credit-item {
        flex-direction: column;
        gap: 8px;
    }
    
    .credit-item strong {
        min-width: auto;
        margin-right: 0;
        margin-bottom: 4px;
    }
    
    .icon-grid {
        grid-template-columns: 1fr;
        gap: 6px;
    }
    
    .icon-credit-item {
        font-size: 12px;
        padding: 6px 10px;
    }
}