/* ============================================ */
/* AI Smart Classroom - Static Website Styles */
/* ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #0ea5e9;
    --accent: #22c55e;
    --warning: #f59e0b;
    
    /* Neutrals */
    --bg-dark: #0a0a0f;
    --bg-card: #111118;
    --bg-elevated: #1a1a24;
    --border: #2a2a3a;
    --border-light: #3a3a4a;
    
    /* Text */
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-hero: radial-gradient(ellipse at top, #1a1a2e 0%, #0a0a0f 70%);
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Typography */
    --font-sans: 'Inter', 'Noto Sans Devanagari', -apple-system, sans-serif;
    --font-hindi: 'Noto Sans Devanagari', sans-serif;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: clamp(1rem, 2vw, 1.25rem); }

p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ============================================ */
/* Navigation */
/* ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    border-bottom: 1px solid var(--border);
    padding: var(--space-sm) 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.logo-icon {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    list-style: none;
}

.nav-link {
    padding: var(--space-sm) var(--space-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--space-sm);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-elevated);
}

.nav-cta {
    background: var(--gradient-primary);
    color: var(--text-primary) !important;
    margin-left: var(--space-md);
}

.nav-cta:hover {
    opacity: 0.9;
    background: var(--gradient-primary) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

/* Mobile Navigation */
@media (max-width: 1024px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-dark);
        padding: var(--space-lg);
        gap: var(--space-sm);
        border-bottom: 1px solid var(--border);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-link {
        width: 100%;
        padding: var(--space-md);
    }
    
    .nav-cta {
        margin-left: 0;
        margin-top: var(--space-sm);
    }
}

/* ============================================ */
/* Hero Section */
/* ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding: var(--space-3xl) 0;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: 0;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.badge-icon {
    font-size: 1rem;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, #fff 0%, #a1a1aa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    font-family: var(--font-hindi);
}

.hero-description {
    font-size: 1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-3xl);
}

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-light);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

.hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
    display: none;
}

@media (min-width: 1200px) {
    .hero-visual {
        display: block;
    }
}

.visual-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    width: 300px;
    box-shadow: var(--shadow-glow);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    font-size: 0.875rem;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.card-content {
    padding: var(--space-lg);
}

.pipeline-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.pipe-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.step-icon {
    font-size: 1.5rem;
}

.step-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.pipe-arrow {
    color: var(--primary);
    font-weight: 700;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-muted);
    font-size: 0.75rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

/* ============================================ */
/* Buttons */
/* ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--space-sm);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

.btn-secondary:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--border-light);
}

.btn-full {
    width: 100%;
}

/* ============================================ */
/* Sections */
/* ============================================ */
.section {
    padding: var(--space-3xl) 0;
    border-bottom: 1px solid var(--border);
}

.section:last-of-type {
    border-bottom: none;
}

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

.section-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-light);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: var(--space-md);
}

.section-title {
    margin-bottom: var(--space-md);
}

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

/* ============================================ */
/* About Section */
/* ============================================ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
}

@media (min-width: 768px) {
    .about-grid {
        grid-template-columns: 1.2fr 1fr;
    }
}

.about-text {
    font-size: 1.1rem;
    margin-bottom: var(--space-xl);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.feature-item {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-elevated);
    border-radius: 12px;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.feature-text h4 {
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.feature-text p {
    margin: 0;
    font-size: 0.9rem;
}

.about-visual .visual-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.box-header {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #eab308; }
.dot.green { background: #22c55e; }

.box-content {
    padding: var(--space-lg);
}

.code-block {
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.code-block .comment { color: #6a737d; }
.code-block .keyword { color: #ff7b72; }
.code-block .class-name { color: #79c0ff; }
.code-block .string { color: #a5d6ff; }
.code-block .function { color: #d2a8ff; }
.code-block .method { color: #ffa657; }

/* ============================================ */
/* Teacher Section */
/* ============================================ */
.teacher-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-3xl);
}

.teacher-intro .intro-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-xl);
}

.teacher-intro .intro-card h3 {
    margin-bottom: var(--space-md);
}

.pipeline-title,
.structure-title,
.stack-title {
    margin-bottom: var(--space-xl);
    text-align: center;
}

.flow-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

@media (min-width: 768px) {
    .flow-diagram {
        flex-direction: row;
        gap: var(--space-sm);
    }
}

.flow-step {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--space-md);
}

.step-number {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.step-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-md);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    min-width: 140px;
}

.step-box.output {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary);
}

.step-emoji {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.step-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.step-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.flow-connector {
    display: none;
}

@media (min-width: 768px) {
    .flow-connector {
        display: block;
        color: var(--primary);
        font-size: 1.5rem;
    }
}

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

@media (min-width: 768px) {
    .structure-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.structure-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-lg);
    text-align: center;
    transition: all var(--transition-fast);
}

.structure-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.structure-card h4 {
    margin-bottom: var(--space-sm);
}

.structure-card p {
    font-size: 0.85rem;
    margin: 0;
}

.stack-items {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
}

.stack-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-md) var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.stack-name {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary-light);
}

.stack-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ============================================ */
/* Classroom Section */
/* ============================================ */
.classroom-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xl);
}

.classroom-intro p {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.classroom-components {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

@media (min-width: 640px) {
    .classroom-components {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .classroom-components {
        grid-template-columns: repeat(4, 1fr);
    }
}

.component-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-xl);
    text-align: center;
}

.component-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.component-card h4 {
    margin-bottom: var(--space-sm);
}

.component-card p {
    font-size: 0.85rem;
    margin-bottom: var(--space-md);
}

.status {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status.planned {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.classroom-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.diagram-box.central {
    background: var(--gradient-primary);
    padding: var(--space-xl) var(--space-3xl);
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 1.25rem;
    font-weight: 700;
}

.diagram-emoji {
    font-size: 2rem;
}

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

.diagram-connections {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-xl);
}

.connection-group {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.connector {
    color: var(--primary);
    font-size: 1.5rem;
}

.diagram-box.small {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: var(--space-md) var(--space-lg);
    border-radius: 8px;
    font-size: 0.9rem;
}

/* ============================================ */
/* Robot Section */
/* ============================================ */
.robot-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xl);
}

.robot-intro p {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

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

@media (min-width: 768px) {
    .robot-features {
        grid-template-columns: repeat(4, 1fr);
    }
}

.robot-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-xl);
    text-align: center;
}

.robot-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.robot-card h4 {
    margin-bottom: var(--space-sm);
}

.robot-card p {
    font-size: 0.85rem;
    margin: 0;
}

.robot-status {
    text-align: center;
    padding: var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: rgba(245, 158, 11, 0.1);
    border-radius: 50px;
    margin-bottom: var(--space-md);
}

.status-badge .status-icon {
    font-size: 1.25rem;
}

.status-badge .status-text {
    font-weight: 600;
    color: var(--warning);
}

.status-desc {
    max-width: 500px;
    margin: 0 auto;
    font-size: 0.9rem;
}

/* ============================================ */
/* How It Works Section */
/* ============================================ */
.process-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    max-width: 700px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.timeline-marker {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    font-weight: 700;
    flex-shrink: 0;
}

.timeline-content {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-lg);
}

.timeline-content h4 {
    margin-bottom: var(--space-xs);
}

.timeline-content p {
    margin: 0;
    font-size: 0.9rem;
}

/* ============================================ */
/* Technology Section */
/* ============================================ */
.tech-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-3xl);
}

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

@media (min-width: 768px) {
    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.tech-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-xl);
    text-align: center;
    transition: all var(--transition-fast);
}

.tech-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.tech-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.tech-card h4 {
    margin-bottom: var(--space-xs);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.tech-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-light);
    margin-bottom: var(--space-sm);
}

.tech-card p {
    font-size: 0.85rem;
    margin: 0;
}

.architecture-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-xl);
}

.architecture-box h4 {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.arch-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.arch-layer {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--space-md);
    width: 100%;
    max-width: 500px;
}

.arch-layer.output {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary);
}

.layer-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.layer-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: center;
}

.layer-items span {
    background: var(--bg-card);
    padding: var(--space-xs) var(--space-md);
    border-radius: 50px;
    font-size: 0.85rem;
}

.arch-arrow {
    color: var(--primary);
    font-size: 1.25rem;
}

/* ============================================ */
/* Journey Section */
/* ============================================ */
.journey-timeline {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
}

@media (min-width: 768px) {
    .journey-timeline {
        grid-template-columns: repeat(2, 1fr);
    }
}

.journey-item {
    position: relative;
}

.journey-date {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-primary);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.journey-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-xl);
}

.journey-card h4 {
    margin-bottom: var(--space-md);
    color: var(--primary-light);
}

.journey-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.journey-card li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.journey-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}

.journey-item.current .journey-card {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

/* ============================================ */
/* Future Section */
/* ============================================ */
.future-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

@media (min-width: 768px) {
    .future-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.future-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-xl);
    transition: all var(--transition-fast);
}

.future-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.future-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.future-card h4 {
    margin-bottom: var(--space-sm);
}

.future-card p {
    font-size: 0.85rem;
    margin-bottom: var(--space-md);
}

.timeframe {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-elevated);
    border-radius: 50px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ============================================ */
/* Contact Section */
/* ============================================ */
.contact-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
}

@media (min-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr 1fr;
    }
}

.contact-info p {
    margin-bottom: var(--space-xl);
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

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

.contact-icon {
    font-size: 1.5rem;
}

.contact-text h4 {
    margin-bottom: var(--space-xs);
    font-size: 1rem;
}

.contact-text p {
    margin: 0;
    font-size: 0.9rem;
}

.contact-phone {
    display: inline-block;
    margin-top: var(--space-xs);
    color: var(--primary-light);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.contact-phone:hover {
    color: var(--text-primary);
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-xl);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-sm);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* ============================================ */
/* Footer */
/* ============================================ */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: var(--space-3xl) 0 var(--space-xl);
}

/* ============================================ */
/* Project Problem & Approach Sections */
/* ============================================ */
.problem-section,
.approach-section {
    margin: var(--space-xl) 0;
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.subsection-title {
    font-size: 1.25rem;
    color: var(--primary-light);
    margin-bottom: var(--space-md);
}

/* ============================================ */
/* Project Status Section */
/* ============================================ */
.status-section {
    background: var(--bg-elevated);
}

.status-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.status-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

@media (min-width: 768px) {
    .status-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .status-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.status-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-xl);
    text-align: center;
    transition: all var(--transition-fast);
}

.status-item:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.status-item .status-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.status-item h4 {
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.status-detail {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.status-item .status-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-item .status-badge.active {
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-light);
}

.status-item .status-badge.implemented {
    background: rgba(34, 197, 94, 0.2);
    color: var(--accent);
}

.status-item .status-badge.research {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

/* ============================================ */
/* Project Creator Section */
/* ============================================ */
.creator-section {
    background: var(--bg-dark);
}

.creator-content {
    display: flex;
    justify-content: center;
}

.creator-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: var(--space-3xl);
    max-width: 700px;
    width: 100%;
    text-align: center;
}

@media (min-width: 768px) {
    .creator-card {
        flex-direction: row;
        text-align: left;
        gap: var(--space-3xl);
    }
}

.creator-image {
    flex-shrink: 0;
    margin-bottom: var(--space-xl);
}

@media (min-width: 768px) {
    .creator-image {
        margin-bottom: 0;
    }
}

.creator-image img {
    width: 220px;
    height: auto;
    max-height: 320px;
    border-radius: 12px;
    object-fit: contain;
    border: 3px solid var(--primary);
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.2);
}

@media (min-width: 768px) {
    .creator-image img {
        width: 260px;
        max-height: 360px;
    }
}

.creator-info {
    flex: 1;
}

.creator-name {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.creator-role {
    font-size: 1.1rem;
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.creator-project {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.creator-designation {
    margin-bottom: var(--space-md);
}

.creator-position {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.creator-location {
    margin-bottom: var(--space-lg);
}

.creator-school,
.creator-address {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.6;
}

.creator-qualifications {
    margin-bottom: var(--space-lg);
}

.creator-qualifications h4 {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: var(--space-xs);
    font-weight: 500;
}

.creator-qualifications p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.creator-bio p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin: 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 2fr 1fr;
    }
}

.footer-logo {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.footer-desc {
    font-size: 0.9rem;
    margin: 0;
}

.footer-links {
    display: flex;
    gap: var(--space-2xl);
}

.footer-column h5 {
    margin-bottom: var(--space-md);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-sm);
}

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

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

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0;
}

/* ============================================ */
/* Animations */
/* ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* ============================================ */
/* Responsive Adjustments */
/* ============================================ */
@media (max-width: 640px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .stat-divider {
        width: 50px;
        height: 1px;
    }
}