:root {
    /* Apple-inspired Light Palette */
    --bg-base: #ffffff;
    --bg-surface: #f5f5f7;
    --bg-surface-alt: #ffffff;
    
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    
    --accent-primary: #0071e3;
    --accent-secondary: #0077ed;
    
    --border-light: rgba(0, 0, 0, 0.08);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
    
    /* Layout & FX */
    --container-width: 1100px;
    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --transition: all 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
    --shadow-screenshot: 0 25px 60px rgba(0, 0, 0, 0.15);
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
    width: 100%;
    -webkit-font-smoothing: antialiased;
}

/* Background */
.bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-color: var(--bg-base);
}

/* Clean up old gradient divs */
.gradient-orb, .orb-1, .orb-2, .orb-3 {
    display: none;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--border-light) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-light) 1px, transparent 1px);
    background-size: 32px 32px;
    opacity: 0.4;
    mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 100%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 100%);
}

/* Typography & Utilities */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    line-height: 1.15;
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

.gradient-text {
    background: none;
    -webkit-text-fill-color: var(--text-primary);
    color: var(--text-primary);
}

/* Navigation */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.25rem 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

#navbar.scrolled {
    padding: 0.875rem 0;
}

.nav-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
}

.nav-logo {
    width: 24px;
    height: 24px;
    border-radius: 6px;
}

.nav-brand-text {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: -0.01em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a:not(.nav-github) {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    opacity: 0.8;
}

.nav-links a:not(.nav-github):hover {
    opacity: 1;
}

.nav-github {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: var(--text-primary);
}

.nav-github:hover {
    opacity: 0.7;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

.mobile-menu {
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    padding: 1rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    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 a {
    font-size: 1rem;
    font-weight: 500;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

.btn-lg {
    padding: 0.8rem 1.8rem;
    font-size: 1.05rem;
    border-radius: 24px;
}

.btn-full {
    width: 100%;
}

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

.btn-primary:hover {
    background: #333336;
}

.btn-secondary {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(0, 0, 0, 0.08);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 2rem;
    text-align: center;
    max-width: var(--container-width);
    margin: 0 auto;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto 3rem;
    animation: slideUp 0.6s ease-out;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.8rem;
    border-radius: 16px;
    background: rgba(0, 0, 0, 0.04);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-dot {
    display: none;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    letter-spacing: -0.03em;
    margin-bottom: 1.25rem;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px solid var(--border-light);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.hero-visual {
    position: relative;
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    animation: fadeIn 0.8s ease-out 0.3s both;
}

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

.hero-glow {
    display: none;
}

.hero-screenshot {
    position: relative;
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow-screenshot);
    z-index: 1;
    border: 1px solid var(--border-light);
}

/* Sections */
.section {
    padding: 6rem 2rem;
}

.section-dark {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

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

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 4rem;
}

.section-label {
    display: inline-block;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
}

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

.feature-card {
    background: var(--bg-base);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition);
}

.section-dark .feature-card {
    background: var(--bg-surface-alt);
}

.feature-card:hover {
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--bg-surface);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.feature-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
}

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

/* Screenshot Showcase */
.screenshot-showcase {
    background: var(--bg-base);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.screenshot-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-surface);
}

.ss-tab {
    flex: 1;
    padding: 1rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.ss-tab:hover {
    color: var(--text-primary);
}

.ss-tab.active {
    color: var(--text-primary);
    background: var(--bg-base);
}

.ss-tab.active::after {
    display: none;
}

.screenshot-viewer {
    padding: 2.5rem;
    background: var(--bg-base);
    display: flex;
    justify-content: center;
}

.screenshot-frame {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-screenshot);
    border: 1px solid rgba(0,0,0,0.1);
    max-width: 900px;
    width: 100%;
}

.frame-dots {
    display: none;
}

.ss-img {
    display: none;
    width: 100%;
    height: auto;
    vertical-align: middle;
    animation: fadeIn 0.4s ease-out;
}

.ss-img.active {
    display: block;
}

/* Architecture Section */
.arch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.arch-card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
}

.arch-card::before {
    display: none;
}

.arch-label {
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.arch-card h3 {
    margin-bottom: 1.5rem;
    font-size: 1.35rem;
}

.arch-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.arch-card li {
    color: var(--text-primary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.arch-tag {
    background: rgba(0, 0, 0, 0.06);
    color: var(--text-primary);
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    font-weight: 500;
}

/* Install Section */
.install-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 2rem;
}

@media (max-width: 800px) {
    .install-grid { grid-template-columns: 1fr; }
}

.install-card {
    background: var(--bg-base);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.install-primary {
    background: var(--bg-base);
    border: 2px solid var(--text-primary);
}

.install-badge {
    position: absolute;
    top: -12px;
    right: 2.5rem;
    background: var(--text-primary);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.install-card h3 {
    font-size: 1.35rem;
    margin-bottom: 0.5rem;
}

.install-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.install-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.install-meta span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.install-meta span::before {
    content: '';
    display: block;
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--border-light);
}

.install-note {
    font-size: 0.8rem !important;
    text-align: center;
    margin-top: 1rem;
    margin-bottom: 0 !important;
}

.install-note code {
    font-family: var(--font-mono);
    color: var(--text-primary);
    background: var(--bg-surface);
    padding: 0.1rem 0.3rem;
    border-radius: 4px;
}

/* Code Block */
.code-block {
    background: #1e1e1e;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 1rem;
    background: #2d2d2d;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: #a0a0a0;
}

.btn-copy {
    background: none;
    border: none;
    color: #a0a0a0;
    cursor: pointer;
    transition: var(--transition);
}

.btn-copy:hover {
    color: #fff;
}

.code-block pre {
    padding: 1.25rem;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.5;
    color: #fff;
}

.code-comment {
    color: #6b7280;
}

/* Video Wrapper */
.install-video-container {
    margin-top: 3rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.install-video-container h3 {
    font-size: 1.35rem;
    margin-bottom: 0.5rem;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
    max-width: 100%;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* CTA Section */
.section-cta {
    padding: 6rem 2rem;
    background: var(--bg-base);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-light);
    padding: 3rem 2rem;
    background: var(--bg-surface);
}

.footer-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
}

.footer-logo {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    filter: invert(1);
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

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

.footer-copy {
    text-align: right;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
    
    .hero {
        padding: 6rem 1rem 2rem;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .section {
        padding: 4rem 1.25rem;
    }

    .hero-actions {
        flex-direction: column;
    }
    
    .btn-full {
        width: 100%;
    }
    
    .cta-actions {
        flex-direction: column;
    }
    
    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }
    
    .footer-copy {
        text-align: left;
    }

    .screenshot-viewer {
        padding: 1.5rem;
    }

    .screenshot-tabs {
        flex-wrap: wrap;
    }
    
    .ss-tab {
        padding: 0.75rem;
        font-size: 0.85rem;
    }
}