/* ==========================================================================
   UPTIME FUNK — Global Stylesheet
   Brand: IT sysadmin runs a record label.
   Colors: Tape Cream bg #F4F1E4, Blackout text #14140F, Signal #7D9200, Standby #6B6A61
   Display: Archivo Expanded Black (CSS-simulated)
   System Voice: Space Mono
   Body: Archivo Regular
   ========================================================================== */

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

:root {
    --blackout: #F4F1E4;
    --blackout-light: #EBE7D8;
    --blackout-lighter: #FFFFFF;
    --signal: #7D9200;
    --signal-dim: #6A7D00;
    --tape-cream: #14140F;
    --standby: #6B6A61;
    --standby-light: #939288;
    --white: #14140F;
    --border: #D5D1C3;
    --player-height: 80px;
}

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

body {
    background-color: var(--blackout);
    color: var(--tape-cream);
    font-family: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    min-height: 100vh;
    padding-bottom: var(--player-height);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--signal);
    text-decoration: none;
    transition: color 0.2s ease;
}
a:hover {
    color: var(--white);
}

img { max-width: 100%; height: auto; }

/* --- DISPLAY TYPOGRAPHY (Archivo Expanded Black simulation) --- */
.display-text {
    font-family: 'Archivo Black', 'Arial Black', Impact, sans-serif;
    font-weight: 900;
    text-transform: uppercase;
    line-height: 0.95;
    letter-spacing: 0.03em;
}

/* --- SYSTEM VOICE (Space Mono) --- */
.system-text {
    font-family: 'Space Mono', 'Courier New', monospace;
    letter-spacing: 0.06em;
}

.mono {
    font-family: 'Space Mono', 'Courier New', monospace;
}

/* --- HEADER / NAV --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--blackout);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--tape-cream);
}
.site-logo:hover { color: var(--tape-cream); }

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

.logo-text {
    font-family: 'Archivo Black', 'Arial Black', Impact, sans-serif;
    font-weight: 900;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-links a {
    font-family: 'Space Mono', monospace;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--standby);
    padding: 8px 14px;
    border-radius: 4px;
    transition: all 0.2s ease;
    text-decoration: none;
}
.nav-links a:hover {
    color: var(--tape-cream);
    background: var(--blackout-lighter);
}
.nav-links a.active {
    color: var(--signal);
    background: var(--blackout-lighter);
}

.nav-cta {
    background: var(--signal) !important;
    color: var(--blackout) !important;
    font-weight: 700;
    padding: 8px 18px !important;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.nav-cta:hover {
    background: var(--white) !important;
    color: var(--blackout) !important;
}
.nav-cta::before {
    content: "▶";
    font-size: 0.6rem;
}

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 8px 10px;
    color: var(--tape-cream);
    cursor: pointer;
    font-size: 1.2rem;
    line-height: 1;
}

/* --- HERO --- */
.hero {
    padding: 120px 24px 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(214, 242, 106, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero-status {
    font-family: 'Space Mono', monospace;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--standby);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--signal);
    border-radius: 50%;
    display: inline-block;
    animation: pulse 2s infinite;
}

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

.hero-title {
    font-size: clamp(2.5rem, 7vw, 5rem);
    margin-bottom: 20px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}
.hero-title .highlight {
    color: var(--signal);
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--standby);
    max-width: 600px;
    margin: 0 auto 12px;
    line-height: 1.7;
}

.hero-meta {
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--standby);
    margin-top: 32px;
}

/* --- EQUALIZER BARS (decorative) --- */
.eq-bars {
    display: inline-flex;
    align-items: flex-end;
    gap: 3px;
    height: 18px;
    vertical-align: middle;
}
.eq-bars span {
    width: 3px;
    background: var(--signal);
    border-radius: 1px;
    animation: eqBounce 1.2s ease-in-out infinite;
}
.eq-bars span:nth-child(1) { height: 30%; animation-delay: 0s; }
.eq-bars span:nth-child(2) { height: 70%; animation-delay: 0.15s; }
.eq-bars span:nth-child(3) { height: 50%; animation-delay: 0.3s; }
.eq-bars span:nth-child(4) { height: 90%; animation-delay: 0.1s; }
.eq-bars span:nth-child(5) { height: 40%; animation-delay: 0.25s; }

@keyframes eqBounce {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(0.4); }
}

/* --- SECTIONS --- */
.section {
    padding: 48px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
}

.section-title {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--standby);
}

.section-link {
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* --- TRACK LIST --- */
.track-list {
    display: flex;
    flex-direction: column;
}

.track-item {
    display: grid;
    grid-template-columns: 44px 1fr 100px 80px 60px 50px;
    align-items: center;
    gap: 16px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.15s ease;
    position: relative;
}
.track-item:hover {
    background: var(--blackout-light);
}
.track-item:hover .track-play-btn {
    opacity: 1;
}
.track-item.playing {
    background: var(--blackout-light);
}

.track-num {
    font-family: 'Space Mono', monospace;
    font-size: 0.8rem;
    color: var(--standby);
    text-align: center;
}
.track-item.playing .track-num {
    color: var(--signal);
}
.track-play-btn {
    display: none;
    color: var(--signal);
    font-size: 0.9rem;
}
.track-item:hover .track-num-text { display: none; }
.track-item:hover .track-play-btn { display: inline; }

.track-info {
    min-width: 0;
}
.track-title {
    font-family: 'Archivo Black', 'Arial Black', Impact, sans-serif;
    font-weight: 900;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--tape-cream);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.track-item.playing .track-title {
    color: var(--signal);
}
.track-desc {
    font-size: 0.78rem;
    color: var(--standby);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.track-genre {
    font-family: 'Space Mono', monospace;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--standby);
}

.track-key {
    font-family: 'Space Mono', monospace;
    font-size: 0.68rem;
    color: var(--standby);
}

.track-duration {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    color: var(--standby);
    text-align: right;
}

.track-fav {
    text-align: center;
    color: var(--standby);
    font-size: 0.8rem;
    cursor: pointer;
    transition: color 0.2s ease;
}
.track-fav:hover {
    color: var(--signal);
}
.track-fav.active {
    color: var(--signal);
}

/* --- PLAYLIST CARDS --- */
.playlist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.playlist-card {
    background: var(--blackout-light);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    color: var(--tape-cream);
    display: block;
}
.playlist-card:hover {
    border-color: var(--signal);
    transform: translateY(-2px);
    color: var(--tape-cream);
}

.playlist-emoji {
    font-size: 2rem;
    margin-bottom: 14px;
    display: block;
}

.playlist-card-title {
    font-family: 'Archivo Black', 'Arial Black', Impact, sans-serif;
    font-weight: 900;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    margin-bottom: 8px;
}

.playlist-card-desc {
    font-size: 0.82rem;
    color: var(--standby);
    line-height: 1.5;
    margin-bottom: 14px;
}

.playlist-card-meta {
    font-family: 'Space Mono', monospace;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--standby);
    display: flex;
    align-items: center;
    gap: 6px;
}

.playlist-card-meta .dot {
    width: 4px;
    height: 4px;
    background: var(--signal);
    border-radius: 50%;
    display: inline-block;
}

/* --- PLAYLIST DETAIL HEADER --- */
.playlist-detail-header {
    padding: 120px 24px 40px;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.playlist-detail-emoji {
    font-size: 3rem;
    margin-bottom: 16px;
}

.playlist-detail-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 12px;
}

.playlist-detail-desc {
    font-size: 1rem;
    color: var(--standby);
    max-width: 600px;
    margin: 0 auto;
}

.playlist-detail-meta {
    font-family: 'Space Mono', monospace;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--standby);
    margin-top: 16px;
}

/* --- ABOUT PAGE --- */
.about-hero {
    padding: 120px 24px 60px;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 24px;
}

.about-intro {
    font-size: 1.05rem;
    color: var(--standby);
    line-height: 1.8;
    max-width: 650px;
    margin: 0 auto 48px;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    max-width: 900px;
    margin: 0 auto 60px;
    padding: 0 24px;
}

.about-card {
    background: var(--blackout-light);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 28px;
}

.about-card-label {
    font-family: 'Space Mono', monospace;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--signal);
    margin-bottom: 12px;
}

.about-card-text {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--tape-cream);
}

.about-values {
    max-width: 800px;
    margin: 0 auto 60px;
    padding: 0 24px;
}

.about-values-title {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--standby);
    border-bottom: 1px solid var(--border);
    padding-bottom: 14px;
    margin-bottom: 24px;
}

.value-item {
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: 12px;
}

.value-item:last-child { border-bottom: none; }

.value-icon {
    color: var(--signal);
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.value-text {
    font-size: 0.9rem;
    color: var(--tape-cream);
    line-height: 1.6;
}
.value-text strong {
    color: var(--signal);
}

/* --- STATS BAR --- */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: 48px;
    padding: 32px 24px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    margin: 0 24px;
}

.stat {
    text-align: center;
}

.stat-value {
    font-family: 'Space Mono', monospace;
    font-size: 1.5rem;
    color: var(--signal);
    letter-spacing: 0.04em;
}

.stat-label {
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--standby);
    margin-top: 4px;
}

/* --- FOOTER --- */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 40px 24px 120px;
    text-align: center;
}

.footer-text {
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--standby);
    line-height: 2;
}

.footer-text a {
    color: var(--standby);
}
.footer-text a:hover {
    color: var(--signal);
}

/* --- AUDIO PLAYER (FIXED BOTTOM BAR) --- */
.audio-player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--player-height);
    background: var(--blackout-light);
    border-top: 1px solid var(--border);
    z-index: 200;
    display: flex;
    align-items: center;
    padding: 0 20px;
    gap: 16px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}
.audio-player.active {
    transform: translateY(0);
}

.player-art {
    width: 48px;
    height: 48px;
    background: var(--blackout-lighter);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}
.player-art .eq-mini {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 20px;
}
.player-art .eq-mini span {
    width: 3px;
    background: var(--signal);
    border-radius: 1px;
    animation: eqBounce 0.8s ease-in-out infinite;
}
.player-art .eq-mini span:nth-child(1) { height: 40%; animation-delay: 0s; }
.player-art .eq-mini span:nth-child(2) { height: 80%; animation-delay: 0.12s; }
.player-art .eq-mini span:nth-child(3) { height: 55%; animation-delay: 0.24s; }
.player-art .eq-mini span:nth-child(4) { height: 70%; animation-delay: 0.08s; }

.player-info {
    min-width: 0;
    flex-shrink: 1;
    max-width: 200px;
}
.player-title {
    font-family: 'Archivo Black', 'Arial Black', Impact, sans-serif;
    font-weight: 900;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--tape-cream);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.player-genre {
    font-family: 'Space Mono', monospace;
    font-size: 0.62rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--standby);
}

.player-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.player-btn {
    background: none;
    border: none;
    color: var(--tape-cream);
    cursor: pointer;
    padding: 6px;
    font-size: 0.9rem;
    transition: color 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}
.player-btn:hover {
    color: var(--signal);
}

.player-btn-main {
    width: 40px;
    height: 40px;
    background: var(--signal);
    border-radius: 50%;
    color: var(--blackout);
    font-size: 1rem;
}
.player-btn-main:hover {
    background: var(--white);
    color: var(--blackout);
}

.player-progress-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 120px;
}

.player-progress {
    flex: 1;
    height: 4px;
    background: var(--blackout-lighter);
    border-radius: 2px;
    cursor: pointer;
    position: relative;
}
.player-progress-bar {
    height: 100%;
    background: var(--signal);
    border-radius: 2px;
    width: 0%;
    transition: width 0.1s linear;
}

.player-time {
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    color: var(--standby);
    min-width: 36px;
    text-align: center;
}

.player-volume {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.volume-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 80px;
    height: 4px;
    background: var(--blackout-lighter);
    border-radius: 2px;
    outline: none;
}
.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--signal);
    border-radius: 50%;
    cursor: pointer;
}
.volume-slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--signal);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

/* --- LOADING STATE --- */
.loading {
    text-align: center;
    padding: 60px 24px;
}

.loading-text {
    font-family: 'Space Mono', monospace;
    font-size: 0.8rem;
    color: var(--standby);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.loading-text::after {
    content: '';
    animation: loadingDots 1.5s steps(3, end) infinite;
}
@keyframes loadingDots {
    0% { content: ''; }
    33% { content: '.'; }
    66% { content: '..'; }
    100% { content: '...'; }
}

/* --- SEARCH --- */
.search-wrap {
    max-width: 400px;
    margin: 0 auto 32px;
}

.search-input {
    width: 100%;
    background: var(--blackout-light);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 12px 16px 12px 40px;
    color: var(--tape-cream);
    font-family: 'Space Mono', monospace;
    font-size: 0.8rem;
    outline: none;
    transition: border-color 0.2s ease;
}
.search-input::placeholder {
    color: var(--standby);
}
.search-input:focus {
    border-color: var(--signal);
}

.search-wrap {
    position: relative;
}
.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--standby);
    font-size: 0.9rem;
    pointer-events: none;
}

/* --- MOBILE MENU --- */
.mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--blackout);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    z-index: 99;
}
.mobile-menu.open {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.mobile-menu a {
    display: block;
    padding: 12px 0;
    font-family: 'Space Mono', monospace;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--standby);
    border-bottom: 1px solid var(--border);
    text-decoration: none;
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--signal); }

/* --- GENRE TABS --- */
.genre-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.genre-tab {
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: transparent;
    color: var(--standby);
    cursor: pointer;
    transition: all 0.2s ease;
}
.genre-tab:hover {
    border-color: var(--signal);
    color: var(--signal);
}
.genre-tab.active {
    background: var(--signal);
    color: var(--blackout);
    border-color: var(--signal);
}

/* --- EMPTY STATE --- */
.empty-state {
    text-align: center;
    padding: 60px 24px;
    color: var(--standby);
}
.empty-state-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .site-header {
        padding: 0 16px;
    }
    .nav-links {
        display: none;
    }
    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .track-item {
        grid-template-columns: 32px 1fr 60px;
        gap: 10px;
        padding: 12px 12px;
    }
    .track-genre,
    .track-key,
    .track-fav {
        display: none;
    }

    .playlist-grid {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .stats-bar {
        flex-wrap: wrap;
        gap: 24px;
    }

    .hero {
        padding: 100px 16px 40px;
    }

    .player-info {
        max-width: 120px;
    }
    .player-volume {
        display: none;
    }
    .player-progress-wrap {
        min-width: 80px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    .player-progress-wrap {
        display: none;
    }
    .player-info {
        max-width: none;
        flex: 1;
    }
}

/* --- PAGE TRANSITIONS --- */
.page {
    display: none;
    opacity: 0;
    transition: opacity 0.25s ease;
}
.page.active {
    display: block;
    opacity: 1;
}

/* --- SCROLLBAR --- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--blackout);
}
::-webkit-scrollbar-thumb {
    background: var(--blackout-lighter);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--border);
}