/* ============================================
   Audio Reader — 802 Flamingo App Portfolio
   Light Mode · Red Accent · Inter Typography
   ============================================ */

:root {
    /* Light mode tokens */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-card: #FFFFFF;
    --bg-card-hover: #F5F5F5;
    --text-primary: #111111;
    --text-secondary: #6B7280;
    --text-tertiary: #9CA3AF;
    --border: #E5E7EB;
    --border-hover: #D1D5DB;

    /* App accent */
    --app-accent: #DC2626;
    --app-accent-subtle: rgba(220, 38, 38, 0.08);
    --app-accent-hover: #B91C1C;

    /* Status */
    --status-success: #22C55E;
    --status-success-bg: rgba(34, 197, 94, 0.1);
    --status-warning: #F59E0B;
    --status-warning-bg: rgba(245, 158, 11, 0.1);
    --status-error: #EF4444;
    --status-error-bg: rgba(239, 68, 68, 0.1);

    /* Typography */
    --font-display: 'DM Serif Display', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-app: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Animation */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

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

a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ============================================
   Header
   ============================================ */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 2rem;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.back-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.back-link:hover { color: var(--text-primary); }

.header-app-name {
    font-family: var(--font-app);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    text-transform: uppercase;
}

/* ============================================
   Hero
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 6rem 2rem 4rem;
}

.waveform-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

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

.hero-label {
    display: inline-block;
    font-family: var(--font-app);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--app-accent);
    background: var(--app-accent-subtle);
    padding: 0.4rem 1rem;
    border-radius: 100px;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(10px);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(20px);
}

.hero-subtitle {
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(15px);
}

/* ============================================
   Shared Section Styles
   ============================================ */

.section-label {
    font-family: var(--font-app);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--app-accent);
    margin-bottom: 1.5rem;
}

.section-heading {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.section-subheading {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

/* ============================================
   The Brief
   ============================================ */

.brief {
    padding: 6rem 2rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.brief-content {
    max-width: 700px;
    margin: 0 auto;
}

.brief-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

/* ============================================
   Player Demo
   ============================================ */

.demo-section {
    padding: 6rem 2rem;
}

.demo-container {
    max-width: 480px;
    margin: 0 auto;
    text-align: center;
}

.player-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2rem;
    margin-top: 2rem;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    text-align: left;
}

/* Article Info */
.article-info {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.article-favicon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--app-accent-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.article-favicon span {
    font-family: var(--font-app);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--app-accent);
}

.article-title {
    font-family: var(--font-app);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.article-source {
    font-family: var(--font-app);
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.15rem;
}

.article-stats {
    font-family: var(--font-app);
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

/* Artwork / Waveform */
.player-artwork {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    max-width: 280px;
    margin: 0 auto 1.5rem;
    border-radius: 16px;
    overflow: hidden;
    background: linear-gradient(135deg, #FEE2E2 0%, #FFF1F2 50%, #FEF2F2 100%);
}

.player-waveform-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.artwork-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--app-accent);
    opacity: 0.4;
}

/* Progress Bar */
.progress-container {
    margin-bottom: 1.5rem;
    padding: 0 0.25rem;
}

.progress-bar {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: var(--border);
    outline: none;
    cursor: pointer;
    margin-bottom: 0.5rem;
}

.progress-bar::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--app-accent);
    cursor: pointer;
    transition: transform 0.15s ease;
    box-shadow: 0 1px 4px rgba(220, 38, 38, 0.3);
}

.progress-bar:hover::-webkit-slider-thumb {
    transform: scale(1.3);
}

.progress-bar::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--app-accent);
    border: none;
    cursor: pointer;
}

.progress-bar::-webkit-slider-runnable-track {
    height: 4px;
    border-radius: 2px;
}

.progress-times {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-app);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-tertiary);
    font-variant-numeric: tabular-nums;
}

/* Player Controls */
.player-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.control-btn {
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.control-btn:hover {
    background: var(--bg-secondary);
}

.control-btn:active {
    transform: scale(0.92);
}

.play-btn {
    width: 64px;
    height: 64px;
    background: var(--app-accent);
    color: white;
    border-radius: 50%;
    box-shadow: 0 4px 16px rgba(220, 38, 38, 0.3);
    transition: all 0.2s ease;
}

.play-btn:hover {
    background: var(--app-accent-hover);
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.4);
}

.play-btn:active {
    transform: scale(0.95);
}

.skip-btn svg {
    width: 28px;
    height: 28px;
}

/* Speed Selector */
.speed-selector {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.speed-pill {
    font-family: var(--font-app);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.4rem 0.85rem;
    border-radius: 100px;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    transition: all 0.2s ease;
}

.speed-pill:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.speed-pill.active {
    background: var(--app-accent);
    color: white;
    border-color: var(--app-accent);
}

/* ============================================
   Queue
   ============================================ */

.queue-section {
    padding: 6rem 2rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.queue-container {
    max-width: 600px;
    margin: 0 auto;
}

.queue-group {
    margin-bottom: 2rem;
}

.queue-group-title {
    font-family: var(--font-app);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-bottom: 0.75rem;
    padding-left: 0.5rem;
}

.queue-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.queue-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: all 0.2s ease;
}

.queue-item:hover {
    border-color: var(--border-hover);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.queue-favicon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-family: var(--font-app);
    font-size: 0.75rem;
    font-weight: 600;
}

.queue-item-info {
    flex: 1;
    min-width: 0;
}

.queue-item-title {
    font-family: var(--font-app);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.15rem;
}

.queue-item-meta {
    font-family: var(--font-app);
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.queue-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.queue-status.ready { background: var(--status-success); }
.queue-status.processing {
    background: var(--status-warning);
    animation: pulse-dot 2s ease-in-out infinite;
}
.queue-status.failed { background: var(--status-error); }

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.queue-duration {
    font-family: var(--font-app);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-tertiary);
    flex-shrink: 0;
}

/* ============================================
   How It Works
   ============================================ */

.how-section {
    padding: 6rem 2rem;
    border-top: 1px solid var(--border);
}

.how-container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.how-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 1rem;
}

.how-card {
    padding: 2.5rem 2rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    text-align: center;
    transition: all 0.3s ease;
}

.how-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
}

.how-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--app-accent-subtle);
    color: var(--app-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
}

.how-title {
    font-family: var(--font-app);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.how-desc {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* ============================================
   Capabilities
   ============================================ */

.capabilities-section {
    padding: 6rem 2rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.capabilities-container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 1rem;
}

.capability-card {
    padding: 2rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    text-align: center;
    transition: all 0.2s ease;
}

.capability-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.capability-icon {
    font-size: 1.5rem;
    display: block;
    margin-bottom: 0.75rem;
}

.capability-card h3 {
    font-family: var(--font-app);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.capability-card p {
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--text-secondary);
}

/* ============================================
   More from 802 Flamingo
   ============================================ */

.more-section {
    padding: 6rem 2rem;
    border-top: 1px solid var(--border);
}

.more-container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.more-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 1rem;
}

.more-card {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    border-radius: 16px;
    aspect-ratio: 4/3;
    background: var(--card-gradient);
    color: white;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.more-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 60%);
}

.more-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.more-card-title {
    position: relative;
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: 0.35rem;
}

.more-card-desc {
    position: relative;
    font-size: 0.8rem;
    opacity: 0.8;
    line-height: 1.4;
}

/* ============================================
   CTA
   ============================================ */

.cta-section {
    padding: 6rem 2rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    text-align: center;
}

.cta-container {
    max-width: 500px;
    margin: 0 auto;
}

.cta-heading {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.cta-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    font-family: var(--font-app);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: white;
    background: var(--text-primary);
    padding: 1rem 2.5rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.cta-button:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
    padding: 3rem 2rem;
    border-top: 1px solid var(--border);
}

.site-footer .footer-content {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: color 0.2s ease;
}

.footer-brand:hover { color: var(--app-accent); }

.footer-portfolio-link {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.footer-portfolio-link:hover { color: var(--text-primary); }

.footer-copy {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    .site-header {
        padding: 1rem 1.25rem;
    }

    .hero {
        padding: 5rem 1.5rem 3rem;
        min-height: 85vh;
    }

    .brief { padding: 4rem 1.5rem; }

    .brief-text { font-size: 1.1rem; }

    .demo-section { padding: 4rem 1.5rem; }

    .player-card { padding: 1.5rem; }

    .player-artwork { max-width: 240px; }

    .speed-selector {
        gap: 0.35rem;
    }

    .speed-pill {
        padding: 0.35rem 0.65rem;
        font-size: 0.7rem;
    }

    .queue-section { padding: 4rem 1.5rem; }

    .how-section { padding: 4rem 1.5rem; }

    .how-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .capabilities-section { padding: 4rem 1.5rem; }

    .capabilities-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .more-section { padding: 4rem 1.5rem; }

    .more-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .more-card { aspect-ratio: 16/9; }

    .cta-section { padding: 4rem 1.5rem; }

    .site-footer .footer-content {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .capabilities-grid {
        grid-template-columns: 1fr;
    }

    .player-controls { gap: 1.5rem; }

    .play-btn {
        width: 56px;
        height: 56px;
    }
}

/* ============================================
   Animations
   ============================================ */

:focus-visible {
    outline: 2px solid var(--app-accent);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* GSAP fallback — if animations haven't fired in 4s, show everything */
@keyframes gsap-fallback {
    to { opacity: 1; transform: none; }
}

.hero-label, .hero-title, .hero-subtitle {
    animation: gsap-fallback 0s 4s forwards;
}