:root {
    --bg-primary: #050507;
    --bg-secondary: #0f0f13;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-tertiary: #52525b;
    --accent-primary: #6366f1;
    --accent-secondary: #22c55e;
    /* Indigo-500 */
    --accent-glow: rgba(99, 102, 241, 0.15);
    --surface-glass: rgba(255, 255, 255, 0.03);
    --border-glass: rgba(255, 255, 255, 0.06);
    --border-highlight: rgba(255, 255, 255, 0.12);
    --blur-strength: 20px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

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

:not(pre)>code {
    font-family: var(--font-mono);
    font-size: 0.95em;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.1em 0.35em;
    border-radius: 8px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(5, 5, 7, 0.85);
    backdrop-filter: blur(var(--blur-strength));
    border-bottom: 1px solid var(--border-glass);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.logo-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
}

.nav-links {
    display: flex;
    gap: 24px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    position: relative;
    text-align: center;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.75rem;
    line-height: 1.1;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: -0.04em;
    background: linear-gradient(180deg, #ffffff 0%, #a1a1aa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin: 0 auto 48px;
    max-width: 640px;
    font-weight: 400;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 10px;
    font-weight: 500;
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    letter-spacing: -0.01em;
}

.btn-primary {
    background: #fff;
    color: #000;
    border: 1px solid #fff;
}

.btn-primary:hover {
    background: #e4e4e7;
    border-color: #e4e4e7;
}

.btn-outline {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-highlight);
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, rgba(0, 0, 0, 0) 50%);
    pointer-events: none;
    z-index: 1;
    opacity: 0.8;
}

/* Section Pillars */
.section {
    padding: 100px 0;
}

.intro-section {
    padding-top: 110px;
    padding-bottom: 60px;
}

.pillar-section {
    padding-bottom: 40px;
}

.intro-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.intro-actions-centered {
    justify-content: center;
    margin-top: 22px;
}

.intro-value-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 22px;
}

.value-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: 18px;
    padding: 26px;
}

.value-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.value-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 0;
}

.value-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.value-list li {
    color: var(--text-secondary);
    padding-left: 18px;
    margin-bottom: 12px;
    position: relative;
    line-height: 1.7;
}

.value-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: 700;
}

.value-list strong {
    color: var(--text-primary);
}

.intro-process-grid {
    margin-top: 18px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    padding: 32px;
    border-radius: 16px;
    transition: border-color 0.2s ease;
}

.card:hover {
    border-color: var(--border-highlight);
}

.icon-box {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

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

/* Main Viewer / Feature Block */
.feature-block {
    padding: 80px 0;
    border-top: 1px solid var(--border-glass);
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.split-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
    align-items: start;
}

.text-content {
    padding-top: 20px;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(99, 102, 241, 0.1);
    color: #818cf8;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 16px;
    font-family: var(--font-mono);
}

.feature-title {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 1.15rem;
    margin-bottom: 40px;
    line-height: 1.7;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    margin-bottom: 16px;
    padding-left: 24px;
    position: relative;
    color: var(--text-secondary);
}

.feature-list li::before {
    content: "•";
    color: var(--accent-primary);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.feature-list strong {
    color: var(--text-primary);
}

/* Visualization / Code Block */
.app-visualization {
    background: #000;
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.window-bar {
    background: rgba(255, 255, 255, 0.05);
    padding: 10px 16px;
    display: flex;
    gap: 6px;
    border-bottom: 1px solid var(--border-glass);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-tertiary);
}

.code-container {
    padding: 20px;
    overflow-x: auto;
}

.code-block {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.5;
    color: #e5e5e5;
}

/* Syntax Highlighting */
.c-key {
    color: #f472b6;
}

/* Pink */
.c-str {
    color: #a3e635;
}

/* Lime */
.c-num {
    color: #60a5fa;
}

/* Blue */
.c-dim {
    color: #52525b;
}

/* Grey */

/* Model Output Viewer */
.feature-header {
    max-width: 860px;
    margin: 0 auto 36px;
    text-align: center;
}

.viewer-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}

.viewer-panel {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 20px;
}

.panel-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.panel-top-spaced {
    margin-top: 18px;
}

.panel-title {
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

.code-surface {
    background: #06060a;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 14px;
    padding: 16px;
    overflow: auto;
    max-height: 320px;
}

.code-block {
    display: block;
}

/* JSON Tokens */
.tok-key {
    color: #f472b6;
}

.tok-str {
    color: #a3e635;
}

.tok-num {
    color: #60a5fa;
}

.tok-bool {
    color: #fbbf24;
}

.tok-null {
    color: #c084fc;
}

.viewer-error {
    margin-top: 10px;
    color: #fca5a5;
    font-size: 0.9rem;
}

/* Model Output Flow */
.output-flow {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    margin-top: 28px;
}

.output-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.45);
    font-size: 2.25rem;
    padding: 0 4px;
}

.output-note {
    margin-top: 12px;
    color: var(--text-tertiary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.doc-mock {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.025) 0%, rgba(255, 255, 255, 0.01) 100%);
    border: 1px solid var(--border-glass);
    border-radius: 14px;
    padding: 20px;
}

.doc-line {
    height: 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.09);
    margin-bottom: 10px;
}

.doc-gap {
    height: 14px;
}

.doc-total {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
    padding-top: 12px;
    margin-top: 8px;
    border-top: 1px dashed rgba(255, 255, 255, 0.12);
}

.doc-tag {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-tertiary);
}

.doc-value {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    color: #e5e7eb;
}

.doc-line.w55 {
    width: 55%;
}

.doc-line.w60 {
    width: 60%;
}

.doc-line.w65 {
    width: 65%;
}

.doc-line.w70 {
    width: 70%;
}

.doc-line.w80 {
    width: 80%;
}

.doc-line.w88 {
    width: 88%;
}

.doc-line.w90 {
    width: 90%;
}

.doc-line.w92 {
    width: 92%;
}

.parse-map {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}

.parse-map-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 999px;
    padding: 8px 12px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.parse-map-item code {
    background: transparent;
    border: none;
    padding: 0;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.summary-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 14px;
    padding: 14px;
}

.summary-card-wide {
    grid-column: 1 / -1;
}

.summary-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-tertiary);
    margin-bottom: 6px;
}

.summary-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.table-wrap {
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 14px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.25);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.data-table th,
.data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    vertical-align: top;
}

.data-table th {
    text-align: left;
    color: var(--text-tertiary);
    font-weight: 600;
    letter-spacing: 0.04em;
    font-size: 0.75rem;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.03);
}

.data-table tbody tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.data-table td:nth-child(2),
.data-table td:nth-child(3),
.data-table td:nth-child(4) {
    text-align: right;
}

/* Workflow & Screens */
.workflow-section {
    border-top: 1px solid var(--border-glass);
}

.workflow-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin-top: 28px;
}

.workflow-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 24px;
}

.workflow-step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #818cf8;
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid rgba(99, 102, 241, 0.25);
    border-radius: 999px;
    padding: 6px 14px;
    margin-bottom: 16px;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.15);
}

.workflow-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.workflow-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}



.screens-stack {
    display: flex;
    flex-direction: column;
    gap: 22px;
    margin-top: 28px;
}

.screen-row {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    grid-template-areas: "media content";
    gap: 32px;
    align-items: center;
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 28px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.025) 0%, rgba(255, 255, 255, 0.01) 100%);
    transition: border-color 0.2s ease;
}

.screen-row:hover {
    border-color: var(--border-highlight);
}

.screen-row-reverse {
    grid-template-areas: "content media";
}

.screen-media {
    grid-area: media;
}

.screen-content {
    grid-area: content;
}

.screen-content h3 {
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    margin-bottom: 10px;
}

.screen-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 14px;
}

.screen-bullets {
    list-style: none;
}

.screen-bullets li {
    color: var(--text-secondary);
    padding-left: 18px;
    margin-bottom: 10px;
    position: relative;
}

.screen-bullets li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: 700;
}

.phone-frame {
    background: #050507;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 28px;
    padding: 12px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.7);
    max-width: 340px;
    margin: 0 auto;
}

.screen-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 20px;
}

/* Advanced Page Styles */
.tech-container {
    max-width: 800px;
    padding: 120px 24px 80px;
}

.tech-container a {
    color: #818cf8;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.tech-container a:hover {
    color: #a5b4fc;
}

.tech-header {
    margin-bottom: 60px;
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 40px;
}

.tech-section {
    margin-bottom: 80px;
}

.tech-heading {
    font-size: 1.5rem;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.num-badge {
    font-family: var(--font-mono);
    color: #818cf8;
    background: rgba(99, 102, 241, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.9rem;
}

.tech-block {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    padding: 24px;
    margin-top: 16px;
}

.tech-block h3 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.tech-list-sm {
    list-style: none;
    margin-top: 12px;
}

.tech-list-sm li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    padding-left: 16px;
    position: relative;
}

.tech-list-sm li::before {
    content: "-";
    position: absolute;
    left: 0;
    color: var(--text-tertiary);
}

.warning-box {
    border-left: 2px solid #ef4444;
    /* Red */
    background: rgba(239, 68, 68, 0.05);
    padding: 16px;
    margin-top: 24px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.warning-box strong {
    color: #ef4444;
}

/* Guide Page Styles */
.guide-hero {
    padding: 140px 0 80px;
}

.guide-container {
    max-width: 900px;
    padding: 0 24px 100px;
}

.guide-split {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 28px;
    align-items: start;
}

.guide-split-content {
    min-width: 0;
}

.guide-figure {
    margin: 0;
    position: sticky;
    top: 100px;
    align-self: start;
}

.guide-figure figcaption {
    margin-top: 16px;
    color: var(--text-tertiary);
    font-size: 0.85rem;
    line-height: 1.5;
    text-align: center;
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
}

.guide-figure .phone-frame {
    max-width: 320px;
    margin: 0 auto;
}

.guide-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 20px;
}

.guide-section {
    margin-bottom: 80px;
}

.guide-section h2 {
    font-size: 2rem;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.guide-toc {
    margin-bottom: 70px;
    padding: 32px;
    border-radius: 18px;
    border: 1px solid var(--border-glass);
    background: rgba(255, 255, 255, 0.02);
}

.guide-toc h2 {
    margin-bottom: 24px;
    font-size: 1.25rem;
}

.guide-toc-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 12px 24px;
    margin: 0;
    padding: 0;
}

.guide-toc-list li {
    flex: 0 0 auto;
}

.guide-toc-list a {
    display: inline-block;
    padding: 4px 0;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: color 0.2s ease;
    border-bottom: 1px solid transparent;
}

.guide-toc-list a:hover {
    color: var(--text-primary);
    border-color: var(--accent-primary);
    background: transparent;
}

.guide-toc-note {
    margin-top: 16px;
    margin-bottom: 0;
    color: var(--text-tertiary);
    font-size: 0.98rem;
    line-height: 1.7;
}

.guide-section h3 {
    font-size: 1.1rem;
    margin-bottom: 18px;
    color: var(--text-primary);
}

.guide-section p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 18px;
    line-height: 1.8;
}

.feature-grid-mini {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin-top: 24px;
}

.mini-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    padding: 20px;
    border-radius: 16px;
    text-align: center;
}

.mini-card .icon {
    font-size: 1.75rem;
    display: block;
    margin-bottom: 10px;
}

.mini-card strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 1.05rem;
}

.mini-card p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

.guide-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    padding: 28px;
    border-radius: 16px;
    margin-bottom: 24px;
}

.guide-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.guide-list li {
    margin-bottom: 14px;
    color: var(--text-secondary);
    padding-left: 18px;
    position: relative;
}

.guide-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: 700;
}

.guide-list li strong {
    color: var(--text-primary);
}

.definition-list dt {
    color: var(--text-primary);
    font-weight: 700;
    margin-top: 20px;
    font-size: 1.05rem;
}

.definition-list dd {
    color: var(--text-secondary);
    margin-left: 0;
    margin-top: 8px;
    line-height: 1.7;
}

.monitoring-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 18px;
    margin: 24px 0;
}

.monitor-item {
    background: var(--bg-secondary);
    padding: 22px;
    border-radius: 16px;
    border: 1px solid var(--border-glass);
    text-align: center;
}

.monitor-item .indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin: 0 auto 14px;
    font-size: 1.1rem;
    font-weight: 700;
}

.monitor-item.up .indicator {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

.monitor-item.steady .indicator {
    background: rgba(148, 161, 178, 0.15);
    color: var(--text-secondary);
}

.monitor-item.down .indicator {
    background: rgba(34, 197, 94, 0.15);
    color: var(--accent-secondary);
}

.monitor-item.new .indicator {
    background: rgba(99, 102, 241, 0.15);
    color: #818cf8;
}

.monitor-item h4 {
    color: var(--text-primary);
    margin-bottom: 8px;
}

.monitor-item p {
    font-size: 0.9rem;
    margin-bottom: 0;
    color: var(--text-secondary);
}

.note-box {
    background: rgba(99, 102, 241, 0.08);
    border-left: 4px solid var(--accent-primary);
    padding: 18px;
    border-radius: 12px;
}

.cta-section {
    text-align: center;
    padding-top: 60px;
    border-top: 1px solid var(--border-glass);
}

.contact-section {
    text-align: center;
    padding-top: 40px;
    padding-bottom: 60px;
    border-top: 1px solid var(--border-glass);
}

.contact-container .feature-title {
    margin-bottom: 12px;
}

.contact-email {
    color: var(--text-primary);
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease;
}

.contact-email:hover,
.contact-email:focus {
    border-color: var(--border-highlight);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 12px;
    border: 1px solid var(--border-glass);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-highlight);
}

/* Footer */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-glass);
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

@media (max-width: 768px) {
    .navbar {
        background: rgba(5, 5, 7, 0.95);
    }

    .nav-container {
        padding: 0 16px;
    }

    .hero {
        padding: 120px 0 60px;
    }

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

    .hero-actions {
        flex-direction: column;
        width: 100%;
        gap: 12px;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .intro-section {
        padding-top: 60px;
        padding-bottom: 40px;
    }

    .intro-value-grid {
        grid-template-columns: 1fr;
    }

    .split-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .viewer-layout {
        grid-template-columns: 1fr;
    }

    .output-flow {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .output-arrow {
        transform: rotate(90deg);
        margin: 10px 0;
    }

    .guide-split {
        grid-template-columns: 1fr;
    }

    .screen-row,
    .screen-row-reverse {
        grid-template-columns: 1fr;
        grid-template-areas: "media" "content";
        padding: 24px 20px;
        gap: 24px;
    }

    .phone-frame {
        max-width: 100%;
    }

    .feature-title {
        font-size: 2rem;
    }

    .container {
        padding: 0 20px;
    }
}