/* ===== CSS Variables - Dark Theme Only ===== */
:root {
    /* Accent Colors - Dark Purple */
    --accent-primary: #9333ea;
    --accent-hover: #a855f7;
    --accent-light: rgba(147, 51, 234, 0.15);
    --accent-glow: rgba(147, 51, 234, 0.4);
    
    /* Pure Black Dark Theme - OLED friendly */
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #141414;
    --bg-hover: #1f1f1f;
    --bg-active: #2a2a2a;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --text-disabled: #475569;
    
    --border: #1f1f1f;
    --border-hover: #2a2a2a;
    
    /* Shadows with dark purple accent glow */
    --shadow-sm: 0 1px 3px 0 rgba(147, 51, 234, 0.2), 0 1px 2px 0 rgba(0, 0, 0, 0.8);
    --shadow-md: 0 4px 6px -1px rgba(147, 51, 234, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.8);
    --shadow-lg: 0 10px 15px -3px rgba(147, 51, 234, 0.25), 0 4px 6px -2px rgba(0, 0, 0, 0.9);
    --shadow-xl: 0 20px 25px -5px rgba(147, 51, 234, 0.35), 0 10px 10px -5px rgba(0, 0, 0, 0.9);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    padding-top: 73px;
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.9);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    z-index: 1000;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    transition: all var(--transition-base);
    will-change: transform;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    text-decoration: none;
    color: inherit;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-hover));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.875rem;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
}

.logo:hover .logo-icon {
    transform: rotate(-5deg) scale(1.05);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width var(--transition-base);
}

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

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
    border-radius: 2px;
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-base);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-links a {
        width: 100%;
        padding: 1rem;
        border-radius: 8px;
    }
    
    .nav-links a:hover {
        background: var(--bg-secondary);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
}

/* ===== Hero Section ===== */
.hero {
    padding: 8rem 0 6rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--accent-light) 0%, transparent 70%);
    opacity: 0.5;
    animation: pulse 15s ease-in-out infinite;
}

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

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2rem;
    transition: all var(--transition-base);
}

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

.badge-icon {
    font-size: 1.25rem;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(
        90deg,
        #ff6b6b,
        #ee5a6f,
        #c44569,
        #a855f7,
        #7c3aed,
        #6366f1,
        #3b82f6,
        #06b6d4,
        #10b981,
        #84cc16,
        #eab308,
        #f59e0b,
        #ef4444
    );
    background-size: 300% auto;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient-shift 8s linear infinite;
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    box-shadow: 0 4px 14px 0 var(--accent-glow);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px 0 var(--accent-glow);
}

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

.btn-secondary:hover {
    border-color: var(--accent-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    background: var(--bg-hover);
}

.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 0.25rem;
}

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

@media (max-width: 768px) {
    .hero {
        padding: 4rem 0 3rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        justify-content: center;
    }
    
    .hero-stats {
        gap: 2rem;
    }
}

/* ===== Section Styles ===== */
section {
    padding: 5rem 0;
}

@media (max-width: 768px) {
    section {
        padding: 3rem 0;
    }
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

@media (max-width: 768px) {
    .section-header {
        margin-bottom: 2.5rem;
    }
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.section-description {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--text-secondary);
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

@media (max-width: 640px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.feature-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid var(--border);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-hover));
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

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

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: inline-block;
    transition: transform var(--transition-base);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== Screenshots Carousel ===== */
.carousel {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.carousel-container {
    overflow: hidden;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
}

.carousel-track {
    display: flex;
    transition: transform var(--transition-slow);
}

.carousel-slide {
    min-width: 100%;
    display: none;
}

.carousel-slide.active {
    display: block;
}

.carousel-slide img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 20px;
}

.carousel-caption {
    text-align: center;
    padding: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(20, 20, 20, 0.95);
    color: var(--text-primary);
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    z-index: 10;
}

.carousel-btn:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-50%) scale(1.15);
}

.carousel-prev {
    left: -24px;
}

.carousel-next {
    right: -24px;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

.carousel-dot.active {
    background: var(--accent-primary);
    width: 32px;
    border-radius: 6px;
}

@media (max-width: 768px) {
    .carousel-btn {
        width: 40px;
        height: 40px;
    }
    
    .carousel-prev {
        left: 8px;
    }
    
    .carousel-next {
        right: 8px;
    }
}

/* ===== Use Cases Section ===== */
.use-cases {
    background: var(--bg-secondary);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

@media (max-width: 640px) {
    .use-cases-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.use-case-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid var(--border);
    text-align: center;
    transition: all var(--transition-base);
}

.use-case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.use-case-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
    transition: transform var(--transition-base);
}

.use-case-card:hover .use-case-icon {
    transform: scale(1.2);
}

.use-case-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

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

/* ===== Tech Stack Section ===== */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

@media (max-width: 640px) {
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}

.tech-item {
    background: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

.tech-item:hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
}

.tech-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.tech-desc {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.performance-metrics {
    display: flex;
    gap: 3rem;
    justify-content: center;
    flex-wrap: wrap;
    padding: 2rem;
    background: var(--bg-tertiary);
    border-radius: 20px;
}

.metric {
    text-align: center;
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

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

@media (max-width: 640px) {
    .performance-metrics {
        gap: 2rem;
        padding: 1.5rem;
    }
}

/* ===== Download Section ===== */
.download {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-hover));
    color: white;
    position: relative;
    overflow: hidden;
}

.download::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.download-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.download-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.download-description {
    font-size: clamp(1rem, 2vw, 1.125rem);
    margin-bottom: 3rem;
    opacity: 0.95;
}

.download-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .download-buttons {
        flex-direction: column;
        align-items: stretch;
    }
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 2rem;
    background: white;
    color: #0f172a;
    border-radius: 20px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}

.download-btn:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.download-btn svg {
    flex-shrink: 0;
}

.download-platform {
    font-weight: 600;
    font-size: 1.125rem;
    text-align: left;
}

.download-info {
    font-size: 0.875rem;
    color: #64748b;
    text-align: left;
}

.download-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    opacity: 0.9;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-secondary);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 640px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.footer-brand {
    max-width: 300px;
}

.footer-tagline {
    margin: 1rem 0;
    color: var(--text-secondary);
}

.footer-love {
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.heart {
    color: #ef4444;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.footer-column h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 0.75rem;
    transition: all var(--transition-fast);
}

.footer-column a:hover {
    color: var(--accent-primary);
    transform: translateX(4px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

@media (max-width: 640px) {
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-4px) rotate(5deg);
}

/* ===== Download Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
    padding: 1rem;
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 24px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-30px) scale(0.9);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
    z-index: 1;
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    transform: rotate(90deg);
}

.modal-header {
    padding: 2rem 2rem 1rem;
    text-align: center;
}

@media (max-width: 640px) {
    .modal-header {
        padding: 1.5rem 1.5rem 1rem;
    }
}

.modal-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: var(--accent-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
}

.modal-title {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.modal-body {
    padding: 0 2rem 2rem;
}

@media (max-width: 640px) {
    .modal-body {
        padding: 0 1.5rem 1.5rem;
    }
}

.instructions-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 1.5rem 0 1rem;
    color: var(--text-primary);
}

.instructions-content ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
    color: var(--text-secondary);
}

.instructions-content li {
    margin: 0.5rem 0;
    line-height: 1.6;
}

.warning-box {
    background: rgba(239, 68, 68, 0.1);
    border-left: 4px solid #ef4444;
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
}

.warning-box strong {
    display: block;
    color: #ef4444;
    margin-bottom: 0.5rem;
}

.warning-box p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.875rem;
}

.info-box {
    background: rgba(59, 130, 246, 0.1);
    border-left: 4px solid #3b82f6;
    padding: 1rem;
    border-radius: 12px;
    margin-top: 1rem;
}

.info-box strong {
    display: block;
    color: #3b82f6;
    margin-bottom: 0.5rem;
}

.info-box p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.875rem;
}

.code-block {
    position: relative;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem;
    margin: 1rem 0;
    font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
}

.code-block code {
    display: block;
    color: var(--text-primary);
    font-size: 0.875rem;
    word-break: break-all;
    padding-right: 90px;
}

@media (max-width: 640px) {
    .code-block code {
        font-size: 0.75rem;
        padding-right: 0;
        padding-bottom: 3rem;
    }
}

.copy-btn {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

@media (max-width: 640px) {
    .copy-btn {
        top: auto;
        bottom: 0.75rem;
    }
}

.modal-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

@media (max-width: 640px) {
    .modal-footer {
        flex-direction: column;
        padding: 1rem 1.5rem;
    }
    
    .modal-footer .btn-primary,
    .modal-footer .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}

.modal-cancel {
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
}

#confirm-download {
    position: relative;
    overflow: hidden;
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-hover));
    box-shadow: 0 8px 24px var(--accent-glow);
    transition: all var(--transition-base);
}

#confirm-download::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease-out, height 0.6s ease-out;
}

#confirm-download:hover::before {
    width: 400px;
    height: 400px;
}

#confirm-download:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 32px var(--accent-glow);
}

#confirm-download:active {
    transform: translateY(-1px) scale(0.98);
}

#confirm-download svg {
    position: relative;
    z-index: 1;
    transition: transform var(--transition-base);
}

#confirm-download:hover svg {
    animation: downloadPulse 0.8s ease-in-out infinite;
}

@keyframes downloadPulse {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(3px); }
}

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ===== Performance Optimizations ===== */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* GPU acceleration for animations */
.feature-card,
.use-case-card,
.tech-item,
.btn,
.carousel-btn {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* ===== Modern Scrollbar Styling ===== */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--accent-primary) transparent;
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 10px;
    border: 2px solid transparent;
    background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-hover);
    border: 2px solid transparent;
    background-clip: padding-box;
}

::-webkit-scrollbar-corner {
    background: transparent;
}

/* ===== Selection Styling ===== */
::selection {
    background: var(--accent-primary);
    color: white;
}

::-moz-selection {
    background: var(--accent-primary);
    color: white;
}

/* ===== Focus Styles ===== */
*:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* ===== Utility Classes ===== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* ===== Responsive Typography ===== */
@media (max-width: 640px) {
    html {
        font-size: 14px;
    }
}

/* ===== Print Styles ===== */
@media print {
    .navbar,
    .modal,
    .footer-social {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== High Contrast Mode ===== */
@media (prefers-contrast: high) {
    :root {
        --border: #ffffff;
    }
}

/* ===== Reduced Data Mode ===== */
@media (prefers-reduced-data: reduce) {
    * {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
    }
}