/* ═══════════════════════════════════════════
   ClipVault – GitHub Pages Stylesheet
   Premium dark theme with glassmorphism
   ═══════════════════════════════════════════ */

:root {
    --bg-primary: #06080d;
    --bg-secondary: #0d1117;
    --bg-card: #161b22;
    --bg-card-hover: #1c2128;
    --border: rgba(255, 255, 255, 0.06);
    --border-accent: rgba(139, 92, 246, 0.3);

    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-tertiary: #6e7681;

    --accent: #8b5cf6;
    --accent-hover: #a78bfa;
    --accent-glow: rgba(139, 92, 246, 0.25);
    --green: #3fb950;
    --green-glow: rgba(63, 185, 80, 0.15);

    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

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

code {
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    padding: 2px 7px;
    border-radius: 5px;
    font-size: 0.88em;
    font-family: 'SF Mono', Monaco, monospace;
    color: var(--accent-hover);
}

pre {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    overflow-x: auto;
    margin-top: 12px;
}

pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.85rem;
    color: var(--text-primary);
}

/* ═══════════════════════════════════════════
   Navigation
   ═══════════════════════════════════════════ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 0 24px;
    transition: all 0.3s;
    background: rgba(6, 8, 13, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
}

.nav.scrolled {
    border-bottom-color: var(--border);
    background: rgba(6, 8, 13, 0.9);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

.nav-logo svg {
    color: var(--accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-github {
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-download-nav {
    background: var(--accent) !important;
    color: #fff !important;
    padding: 7px 18px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.85rem !important;
    transition: background 0.2s, transform 0.15s !important;
}

.btn-download-nav:hover {
    background: var(--accent-hover) !important;
    transform: translateY(-1px);
}

/* ═══════════════════════════════════════════
   Hero Section
   ═══════════════════════════════════════════ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    text-align: center;
    overflow: hidden;
}

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

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent), transparent 70%);
    top: -100px;
    left: -150px;
    animation: float 12s infinite ease-in-out;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #06b6d4, transparent 70%);
    bottom: -100px;
    right: -100px;
    animation: float 15s infinite ease-in-out reverse;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #ec4899, transparent 70%);
    top: 30%;
    right: 15%;
    animation: float 10s infinite ease-in-out 3s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0);
    }

    33% {
        transform: translate(30px, -30px);
    }

    66% {
        transform: translate(-20px, 20px);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.hero-badge {
    display: inline-block;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.25);
    color: var(--accent-hover);
    padding: 6px 18px;
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-bottom: 28px;
}

.hero h1 {
    font-size: clamp(2.8rem, 5.5vw, 4.2rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: 20px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent), #06b6d4, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
    font-family: var(--font);
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 0 40px var(--accent-glow), 0 4px 16px rgba(0, 0, 0, 0.3);
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 0 60px var(--accent-glow), 0 8px 24px rgba(0, 0, 0, 0.4);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.03);
}

.btn-windows {
    background: rgba(0, 120, 212, 0.8);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 20px rgba(0, 120, 212, 0.2);
}

.btn-windows:hover {
    background: rgba(0, 120, 212, 1);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.3), 0 0 40px rgba(0, 120, 212, 0.4), 0 8px 24px rgba(0, 0, 0, 0.4);
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1.1rem;
    border-radius: var(--radius-lg);
}

.hero-shortcut {
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

.hero-shortcut kbd,
kbd {
    display: inline-block;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-bottom-width: 2px;
    padding: 3px 9px;
    border-radius: 6px;
    font-family: var(--font);
    font-size: 0.85em;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 2px;
}

/* ═══════════════════════════════════════════
   App Mockup
   ═══════════════════════════════════════════ */

.hero-mockup {
    position: relative;
    z-index: 1;
    margin-top: 56px;
}

.mockup-window {
    width: 380px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow:
        0 0 80px rgba(139, 92, 246, 0.08),
        0 20px 60px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.04);
    text-align: left;
    animation: mockup-in 1s ease-out 0.5s both;
}

@keyframes mockup-in {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.96);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.mockup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
}

.mockup-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.mockup-logo svg {
    color: var(--accent);
}

.mockup-badge {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    background: rgba(255, 255, 255, 0.05);
    padding: 3px 10px;
    border-radius: 100px;
}

.mockup-search {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 10px 12px;
    padding: 9px 14px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    font-size: 0.82rem;
}

.mockup-tabs {
    display: flex;
    gap: 0;
    padding: 0 12px;
    margin-bottom: 6px;
    font-size: 0.78rem;
    font-weight: 600;
}

.mockup-tabs span {
    padding: 6px 14px;
    color: var(--text-tertiary);
    border-radius: 6px;
    cursor: default;
}

.tab-active {
    background: rgba(139, 92, 246, 0.12) !important;
    color: var(--accent) !important;
}

.mockup-clip {
    margin: 4px 12px;
    padding: 12px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color 0.2s;
}

.mockup-clip.pinned {
    border-left: 2px solid var(--green);
    background: var(--green-glow);
}

.mockup-clip.fade {
    opacity: 0.5;
    margin-bottom: 12px;
}

.mockup-clip-text {
    font-size: 0.82rem;
    color: var(--text-primary);
    font-family: 'SF Mono', Monaco, monospace;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mockup-clip-meta {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    margin-top: 4px;
}

/* ═══════════════════════════════════════════
   Sections Common
   ═══════════════════════════════════════════ */

.section-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.section-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto;
}

/* ═══════════════════════════════════════════
   Features Grid
   ═══════════════════════════════════════════ */

.features {
    padding: 120px 0;
    background:
        radial-gradient(ellipse 60% 50% at 50% 0%, rgba(139, 92, 246, 0.04) 0%, transparent 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all 0.3s;
    opacity: 0;
    transform: translateY(20px);
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    border-color: var(--border-accent);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(139, 92, 246, 0.08);
    border-radius: var(--radius);
    margin-bottom: 18px;
    color: var(--accent);
}

.feature-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ═══════════════════════════════════════════
   Use Cases
   ═══════════════════════════════════════════ */

.use-cases {
    padding: 120px 0;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.use-case-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all 0.3s;
    opacity: 0;
    transform: translateY(20px);
}

.use-case-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.use-case-card:hover {
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.use-case-emoji {
    font-size: 2rem;
    margin-bottom: 16px;
}

.use-case-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.use-case-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ═══════════════════════════════════════════
   Documentation
   ═══════════════════════════════════════════ */

.docs {
    padding: 120px 0;
    background:
        radial-gradient(ellipse 50% 40% at 50% 100%, rgba(139, 92, 246, 0.04) 0%, transparent 100%);
}

.doc-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 32px;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s, transform 0.5s;
}

.doc-block.visible {
    opacity: 1;
    transform: translateY(0);
}

.doc-block h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.01em;
}

.doc-block ol,
.doc-block ul {
    padding-left: 24px;
    margin-top: 8px;
}

.doc-block li {
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.doc-block li strong {
    color: var(--text-primary);
}

/* Shortcuts Table */
.shortcuts-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 4px;
}

.shortcuts-table th {
    text-align: left;
    padding: 10px 16px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-tertiary);
    border-bottom: 1px solid var(--border);
}

.shortcuts-table td {
    padding: 14px 16px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}

.shortcuts-table tr:last-child td {
    border-bottom: none;
}

/* How It Works Steps */
.how-it-works {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.5s, transform 0.5s;
}

.step.visible {
    opacity: 1;
    transform: translateX(0);
}

.step-number {
    width: 36px;
    height: 36px;
    min-width: 36px;
    background: rgba(139, 92, 246, 0.12);
    border: 1px solid rgba(139, 92, 246, 0.3);
    color: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.step strong {
    display: block;
    margin-bottom: 4px;
    font-size: 1rem;
}

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

/* Accordion Details */
.feature-docs {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

details {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: border-color 0.2s;
}

details[open] {
    border-color: var(--border-accent);
}

details summary {
    padding: 14px 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.2s;
}

details summary::-webkit-details-marker {
    display: none;
}

details summary::before {
    content: '▸';
    color: var(--accent);
    transition: transform 0.2s;
    font-size: 0.85rem;
}

details[open] summary::before {
    transform: rotate(90deg);
}

details summary:hover {
    color: var(--accent-hover);
}

details>p,
details>ul {
    padding: 0 20px 16px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

details ul {
    padding-left: 40px !important;
}

/* ═══════════════════════════════════════════
   CTA Section
   ═══════════════════════════════════════════ */

.cta {
    position: relative;
    padding: 120px 0;
    text-align: center;
    overflow: hidden;
}

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

.orb-4 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent), transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.15;
    filter: blur(140px);
}

.orb-5 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #06b6d4, transparent 70%);
    bottom: 0;
    left: 20%;
    opacity: 0.1;
    filter: blur(100px);
}

.cta h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
    position: relative;
}

.cta p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 480px;
    margin: 0 auto 36px;
    position: relative;
}

.cta-actions {
    position: relative;
    margin-bottom: 20px;
}

.cta-meta {
    position: relative;
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* ═══════════════════════════════════════════
   Footer
   ═══════════════════════════════════════════ */

.footer {
    border-top: 1px solid var(--border);
    padding: 32px 24px;
}

.footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

.footer-left svg {
    color: var(--accent);
}

.footer-left span {
    color: var(--text-primary);
    font-weight: 600;
}

.footer-right {
    display: flex;
    gap: 24px;
}

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

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

/* ═══════════════════════════════════════════
   Responsive
   ═══════════════════════════════════════════ */

@media (max-width: 900px) {

    .features-grid,
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .nav-links a:not(.btn-download-nav):not(.nav-github) {
        display: none;
    }

    .features-grid,
    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .mockup-window {
        width: 100%;
        max-width: 360px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .footer-inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .doc-block {
        padding: 24px 20px;
    }
}