/* ===================================
   Kochi Metro Supervisor - Download Website
   Modern, Premium Design
   =================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --metro-blue: #1a1a2e;
    --metro-purple: #764ba2;
    --metro-pink: #f093fb;
    --accent-cyan: #00d9ff;
    
    /* Background Colors */
    --bg-dark: #0a0a0f;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    /* Border */
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Spacing */
    --section-padding: 120px 0;
    --container-padding: 0 24px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
    
    /* Shadows */
    --shadow-glow: 0 0 60px rgba(102, 126, 234, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-primary);
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-download {
    background: var(--primary-gradient);
    color: var(--text-primary);
    padding: 18px 40px;
    font-size: 18px;
    box-shadow: 0 4px 30px rgba(102, 126, 234, 0.5);
}

.btn-download:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 40px rgba(102, 126, 234, 0.6);
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.nav-download-btn {
    background: var(--primary-gradient);
    padding: 10px 20px !important;
    border-radius: var(--radius-sm);
    color: var(--text-primary) !important;
}

.nav-download-btn:hover {
    transform: scale(1.05);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 24px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--primary-gradient);
    top: -200px;
    right: -200px;
    animation: float 8s ease-in-out infinite;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary-gradient);
    bottom: -100px;
    left: -100px;
    animation: float 10s ease-in-out infinite reverse;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #00d9ff 0%, #667eea 100%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(5deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.5; transform: translate(-50%, -50%) scale(1.1); }
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 80px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1;
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 14px;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 800;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
}

/* Phone Mockup */
.hero-phone {
    position: relative;
    flex-shrink: 0;
}

.phone-mockup {
    position: relative;
    z-index: 1;
}

.phone-frame {
    position: relative;
    width: 280px;
    height: 580px;
    background: linear-gradient(145deg, #2a2a3a, #1a1a2e);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 
        0 0 0 4px rgba(255, 255, 255, 0.1),
        var(--shadow-card),
        var(--shadow-glow);
}

.phone-notch {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 28px;
    background: #0a0a0f;
    border-radius: 20px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 30px;
}

.phone-glow {
    position: absolute;
    inset: -50px;
    background: var(--primary-gradient);
    filter: blur(100px);
    opacity: 0.3;
    z-index: 0;
}

/* ===================================
   Features Section
   =================================== */
.features {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--bg-dark) 0%, #0f0f1a 100%);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    color: var(--metro-pink);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-description {
    color: var(--text-secondary);
    font-size: 18px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    border-color: rgba(102, 126, 234, 0.3);
}

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.feature-icon svg {
    stroke: white;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* ===================================
   Screenshots Section
   =================================== */
.screenshots {
    padding: var(--section-padding);
    background: var(--bg-dark);
}

.screenshots-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.screenshot-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 9/16;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.screenshot-card:hover {
    transform: scale(1.02);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: var(--shadow-glow);
}

.screenshot-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.screenshot-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    background: linear-gradient(0deg, rgba(0,0,0,0.8) 0%, transparent 100%);
    font-weight: 600;
    text-align: center;
}

/* ===================================
   Download Section
   =================================== */
.download {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--bg-dark) 0%, #0d0d14 100%);
}

.download-card {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 60px 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.download-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--primary-gradient);
    opacity: 0.05;
}

.download-content {
    position: relative;
    z-index: 1;
}

.download-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: 50%;
    animation: pulse 3s ease-in-out infinite;
}

.download-icon svg {
    stroke: white;
}

.download-content h2 {
    font-size: 36px;
    margin-bottom: 12px;
}

.download-content > p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.download-info {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.download-detail {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-label {
    font-size: 13px;
    color: var(--text-muted);
}

.detail-value {
    font-size: 16px;
    font-weight: 600;
}

.download-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
    font-size: 13px;
    color: var(--text-muted);
}

/* ===================================
   Footer
   =================================== */
.footer {
    padding: 60px 0 30px;
    background: #050508;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-text {
    color: var(--text-secondary);
}

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

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

.footer-bottom {
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 968px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text {
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .phone-frame {
        width: 240px;
        height: 500px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero {
        padding: 100px 20px 60px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 24px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .screenshots-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .download-card {
        padding: 40px 24px;
    }
    
    .download-info {
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .screenshots-gallery {
        grid-template-columns: 1fr;
        max-width: 280px;
        margin: 0 auto;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}