/* ============================================
   DopeTranslator Website - Modern Dark Theme
   ============================================ */

/* CSS Variables */
:root {
    /* Colors - Dark Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a24;
    --bg-card-hover: #22222e;
    --border-color: #2a2a3a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6a6a7a;
    --accent: #60cdff;
    --accent-secondary: #00d084;
    --gradient-start: #60cdff;
    --gradient-end: #00d084;
    --success: #00d084;
    --warning: #ffb020;
    --error: #ff6b6b;
    
    /* Spacing */
    --nav-height: 70px;
    --section-padding: 100px;
    --container-width: 1200px;
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Effects */
    --glow: 0 0 40px rgba(96, 205, 255, 0.3);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --transition: all 0.3s ease;
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f0f0f5;
    --border-color: #e0e0e8;
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5a;
    --text-muted: #8a8a9a;
    --accent: #0078d4;
    --gradient-start: #0078d4;
    --gradient-end: #00a67e;
}

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

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

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

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

img {
    max-width: 100%;
    height: auto;
}

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

[data-theme="light"] .navbar {
    background: rgba(248, 249, 250, 0.9);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
}

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

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

.nav-links a {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.nav-cta {
    background: var(--accent);
    color: var(--bg-primary) !important;
    padding: 8px 20px;
    border-radius: 8px;
    font-weight: 600;
}

.nav-cta:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.theme-toggle {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    cursor: pointer;
    transition: var(--transition);
}

.theme-toggle:hover {
    background: var(--bg-card-hover);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(96, 205, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 205, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 20%, black 40%, transparent 100%);
}

.hero-glow {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(96, 205, 255, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 60px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

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

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

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.title-line {
    display: block;
}

.title-gradient, .gradient-text {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-description strong {
    color: var(--text-primary);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: #000;
    box-shadow: var(--glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px rgba(96, 205, 255, 0.4);
}

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

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
}

.hero-stats {
    display: flex;
    gap: 48px;
}

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

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Terminal Window */
.hero-visual {
    position: relative;
}

.terminal-window {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 20px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
}

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

.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #28c840; }

.terminal-title {
    margin-left: auto;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.terminal-body {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.ascii-art {
    color: var(--accent);
    font-size: 0.65rem;
    line-height: 1.2;
    margin-bottom: 24px;
    overflow: hidden;
}

.terminal-output p {
    margin-bottom: 8px;
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

.terminal-output .delay-1 { animation-delay: 0.5s; }
.terminal-output .delay-2 { animation-delay: 1s; }
.terminal-output .delay-3 { animation-delay: 1.5s; }

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

.prompt { color: var(--accent); }
.success { color: var(--success); }

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--text-muted);
    border-bottom: 2px solid var(--text-muted);
    transform: rotate(45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    50% { transform: rotate(45deg) translateY(8px); }
}

/* ============================================
   Sections Common
   ============================================ */
.section-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--section-padding) 24px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(96, 205, 255, 0.1), rgba(0, 208, 132, 0.1));
    border: 1px solid rgba(96, 205, 255, 0.2);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 16px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Features Section
   ============================================ */
.features {
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    transition: var(--transition);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
    transform: translateY(-4px);
}

.feature-large {
    grid-column: span 3;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 24px;
    align-items: center;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-large .feature-icon {
    font-size: 4rem;
    margin-bottom: 0;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.feature-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    background: rgba(96, 205, 255, 0.1);
    border: 1px solid rgba(96, 205, 255, 0.2);
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--accent);
}

/* ============================================
   Formats Section
   ============================================ */
.formats-showcase {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.format-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}

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

.format-primary {
    grid-column: span 1;
    padding: 32px 24px;
}

.format-primary:nth-child(1) { grid-column: 1 / 2; grid-row: 1 / 3; }
.format-primary:nth-child(2) { grid-column: 2 / 3; grid-row: 1 / 3; }
.format-primary:nth-child(3) { grid-column: 3 / 4; grid-row: 1 / 3; }
.format-primary:nth-child(4) { grid-column: 4 / 5; grid-row: 1 / 3; }

.format-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.format-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.format-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ============================================
   Engines Section
   ============================================ */
.engines {
    background: var(--bg-secondary);
}

.engines-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.engine-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
}

.category-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.engine-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.engine-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--bg-secondary);
    border-radius: 8px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.engine-item:hover {
    background: var(--bg-card-hover);
}

.engine-logo {
    font-size: 1.1rem;
}

/* ============================================
   Workflow Section
   ============================================ */
.workflow-steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    margin-bottom: 60px;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 1;
    max-width: 220px;
}

.step-number {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 800;
    color: #000;
    margin-bottom: 20px;
}

.step-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    width: 100%;
}

.step-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.step-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

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

.step-connector {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    margin-top: 72px;
    opacity: 0.5;
}

.workflow-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.wf-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.wf-icon {
    color: var(--success);
    font-weight: 700;
}

/* ============================================
   Languages Marquee
   ============================================ */
.languages {
    background: var(--bg-secondary);
    overflow: hidden;
    padding: 60px 0;
}

.language-marquee {
    overflow: hidden;
    white-space: nowrap;
    margin-top: 40px;
}

.marquee-track {
    display: inline-flex;
    gap: 24px;
    animation: marquee 30s linear infinite;
}

.lang {
    padding: 12px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.95rem;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ============================================
   Download Section
   ============================================ */
.download {
    padding: var(--section-padding) 24px;
}

.download-card {
    max-width: var(--container-width);
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(96, 205, 255, 0.05), rgba(0, 208, 132, 0.05));
    border: 1px solid rgba(96, 205, 255, 0.2);
    border-radius: 24px;
    padding: 60px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.download-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.download-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 450px;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    padding: 16px 32px;
    border-radius: 14px;
    font-weight: 600;
    color: #000;
    transition: var(--transition);
}

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

.btn-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.btn-main {
    font-size: 1.1rem;
    font-weight: 700;
}

.btn-sub {
    font-size: 0.8rem;
    opacity: 0.8;
}

.download-features {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 32px;
    margin-top: 24px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* App Preview */
.preview-window {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.preview-titlebar {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

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

.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28c840; }

.preview-content {
    display: grid;
    grid-template-columns: 60px 1fr;
    height: 200px;
}

.preview-sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
}

.preview-main {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.preview-file {
    height: 24px;
    background: var(--bg-secondary);
    border-radius: 6px;
}

.preview-progress {
    margin-top: auto;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.preview-progress::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 60%;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    border-radius: 4px;
    animation: progress 2s ease-in-out infinite;
}

@keyframes progress {
    0% { width: 30%; }
    50% { width: 80%; }
    100% { width: 30%; }
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 60px 24px;
    text-align: center;
}

.footer-container {
    max-width: var(--container-width);
    margin: 0 auto;
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.footer-tagline {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 24px;
}

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

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

.footer-copy {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ============================================
   Mobile Menu
   ============================================ */
.mobile-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 24px;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mobile-menu-content a {
    padding: 12px;
    border-radius: 8px;
    font-weight: 500;
    transition: var(--transition);
}

.mobile-menu-content a:hover {
    background: var(--bg-card);
}

.mobile-cta {
    background: var(--accent);
    color: #000 !important;
    text-align: center;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-description {
        margin: 0 auto 32px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-large {
        grid-column: span 2;
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .formats-showcase {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .format-primary {
        grid-column: span 1 !important;
        grid-row: span 1 !important;
    }
    
    .engines-grid {
        grid-template-columns: 1fr;
    }
    
    .download-card {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .download-visual {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-large {
        grid-column: span 1;
    }
    
    .workflow-steps {
        flex-direction: column;
        gap: 24px;
    }
    
    .step {
        max-width: 100%;
    }
    
    .step-connector {
        width: 2px;
        height: 30px;
        margin: 0;
    }
    
    .formats-showcase {
        grid-template-columns: 1fr;
    }
    
    .download-card {
        padding: 40px 24px;
    }
}

@media (max-width: 480px) {
    :root {
        --section-padding: 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .workflow-features {
        flex-direction: column;
        gap: 16px;
    }
}