/* ═══════════════════════════════════════════════════════════════
   FONTS
   ═══════════════════════════════════════════════════════════════ */

@font-face {
    font-family: 'Terminus';
    src: url('/fonts/terminus.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'Orbitron';
    src: url('/fonts/orbitron-regular.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
}

/* ═══════════════════════════════════════════════════════════════
   COLOR PALETTE - INDUSTRIAL TECHNO AESTHETIC
   ═══════════════════════════════════════════════════════════════
   Consolidated to 2-3 core colors: Orange/Amber + Teal + Black
   Pure static HTML/CSS - No JavaScript
   ═══════════════════════════════════════════════════════════════ */

:root {
    --color-void: #000000;
    --color-deep: #0a0a0a;
    --color-hull: #121212;
    --color-steel: #1a1a1a;
    --color-panel: #1f1f1f;
    --color-orange: #8b4000;
    --color-teal: #004d4d;
    --color-text-dim: #666666;
    --color-text-main: #999999;
    --color-text-bright: #cccccc;
}

/* ═══════════════════════════════════════════════════════════════
   BASE STYLES
   ═══════════════════════════════════════════════════════════════ */

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

body {
    font-family: 'Terminus', 'Courier New', monospace;
    background-color: var(--color-void);
    color: var(--color-text-main);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
}

/* VERY SUBTLE DISTANT GRID - Static only */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(0deg, rgba(0, 77, 77, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 64, 0, 0.02) 1px, transparent 1px);
    background-size: 80px 80px;
    pointer-events: none;
    z-index: 1;
    opacity: 0.4;
}

/* ═══════════════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════════════ */

.header {
    background: linear-gradient(to bottom, var(--color-hull), var(--color-void));
    border-bottom: 2px solid var(--color-orange);
    padding: 25px 20px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    box-shadow: 0 0 20px rgba(139, 64, 0, 0.2);
    position: relative;
    z-index: 2;
}

.signal-indicator {
    font-size: 42px;
    color: var(--color-orange);
}

.header-text h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 38px;
    color: var(--color-text-bright);
    letter-spacing: 6px;
    margin-bottom: 8px;
}

.subtext {
    font-size: 12px;
    color: var(--color-teal);
    letter-spacing: 3px;
}

/* ═══════════════════════════════════════════════════════════════
   OSCILLOSCOPE DISPLAY - Dead Space / MGS5 Style
   ═══════════════════════════════════════════════════════════════ */

.oscilloscope-container {
    background: var(--color-deep);
    border: 2px solid var(--color-steel);
    border-left: 3px solid var(--color-orange);
    border-right: 3px solid var(--color-teal);
    margin: 0;
    padding: 0;
    position: relative;
    z-index: 2;
    box-shadow: inset 0 0 30px rgba(139, 64, 0, 0.1);
}

.scope-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 25px;
    background: rgba(0, 0, 0, 0.5);
    border-bottom: 1px solid var(--color-steel);
    font-family: 'Terminus', monospace;
    font-size: 11px;
    letter-spacing: 2px;
}

.scope-label {
    color: var(--color-orange);
    font-weight: bold;
}

.scope-freq {
    color: var(--color-text-bright);
    font-family: 'Orbitron', sans-serif;
}

.scope-status {
    color: var(--color-teal);
    animation: pulse-status 2s ease-in-out infinite;
}

@keyframes pulse-status {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.oscilloscope {
    position: relative;
    height: 120px;
    background: var(--color-void);
    overflow: hidden;
}

/* Oscilloscope Grid */
.scope-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(0deg, rgba(139, 64, 0, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 77, 77, 0.1) 1px, transparent 1px);
    background-size: 40px 20px;
    z-index: 1;
}

/* Oscilloscope Waveform Line */
.scope-line {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg,
        transparent,
        var(--color-teal) 10%,
        var(--color-orange) 50%,
        var(--color-teal) 90%,
        transparent
    );
    transform: translateY(-50%);
    z-index: 2;
    animation: oscilloscope-wave 3s ease-in-out infinite;
    filter: drop-shadow(0 0 8px rgba(139, 64, 0, 0.8));
}

@keyframes oscilloscope-wave {
    0%, 100% {
        clip-path: polygon(
            0% 50%, 5% 45%, 10% 55%, 15% 40%, 20% 60%, 25% 35%, 30% 65%,
            35% 30%, 40% 70%, 45% 25%, 50% 50%, 55% 75%, 60% 30%, 65% 70%,
            70% 35%, 75% 65%, 80% 40%, 85% 60%, 90% 45%, 95% 55%, 100% 50%
        );
    }
    33% {
        clip-path: polygon(
            0% 50%, 5% 30%, 10% 70%, 15% 25%, 20% 75%, 25% 20%, 30% 80%,
            35% 15%, 40% 85%, 45% 10%, 50% 50%, 55% 90%, 60% 15%, 65% 85%,
            70% 20%, 75% 80%, 80% 25%, 85% 75%, 90% 30%, 95% 70%, 100% 50%
        );
    }
    66% {
        clip-path: polygon(
            0% 50%, 5% 60%, 10% 40%, 15% 65%, 20% 35%, 25% 70%, 30% 30%,
            35% 75%, 40% 25%, 45% 80%, 50% 50%, 55% 20%, 60% 80%, 65% 25%,
            70% 75%, 75% 30%, 80% 70%, 85% 35%, 90% 65%, 95% 40%, 100% 50%
        );
    }
}

/* ═══════════════════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════════════════ */

.nav-bar {
    background-color: var(--color-hull);
    border-bottom: 1px solid var(--color-steel);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-link {
    color: var(--color-teal);
    text-decoration: none;
    font-size: 13px;
    letter-spacing: 2px;
}

.status-line {
    display: flex;
    gap: 10px;
    align-items: center;
}

.status-label {
    color: var(--color-text-dim);
    font-size: 11px;
}

.status-active {
    color: var(--color-orange);
    font-size: 11px;
}

/* ═══════════════════════════════════════════════════════════════
   CONTAINER
   ═══════════════════════════════════════════════════════════════ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    position: relative;
    z-index: 2;
}

/* ═══════════════════════════════════════════════════════════════
   TRACK CONTAINERS - TACTICAL INTERFACE STYLE
   ═══════════════════════════════════════════════════════════════ */

.track-container {
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.9) 0%, rgba(10, 10, 10, 0.95) 100%);
    border: 2px solid var(--color-steel);
    margin-bottom: 40px;
    overflow: visible;
    position: relative;
    clip-path: polygon(
        0 20px, 20px 0,
        calc(100% - 20px) 0, 100% 20px,
        100% calc(100% - 20px), calc(100% - 20px) 100%,
        20px 100%, 0 calc(100% - 20px)
    );
    box-shadow:
        0 0 20px rgba(139, 64, 0, 0.15),
        inset 0 0 30px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease;
}

.track-container:hover {
    border-color: var(--color-orange);
    box-shadow:
        0 0 30px rgba(139, 64, 0, 0.3),
        inset 0 0 40px rgba(139, 64, 0, 0.1);
    transform: translateY(-3px);
}

.track-container:nth-child(2) {
    border-left: 3px solid var(--color-orange);
}

.track-container:nth-child(3) {
    border-right: 3px solid var(--color-teal);
}

.track-container:nth-child(4) {
    border-left: 3px solid var(--color-teal);
    border-right: 3px solid var(--color-orange);
}

/* Tactical Corner Brackets */
.tactical-border {
    position: absolute;
    width: 30px;
    height: 30px;
    z-index: 10;
    pointer-events: none;
}

.tactical-border.top-left {
    top: -2px;
    left: -2px;
    border-top: 2px solid var(--color-orange);
    border-left: 2px solid var(--color-orange);
}

.tactical-border.top-right {
    top: -2px;
    right: -2px;
    border-top: 2px solid var(--color-teal);
    border-right: 2px solid var(--color-teal);
}

.tactical-border.bottom-left {
    bottom: -2px;
    left: -2px;
    border-bottom: 2px solid var(--color-teal);
    border-left: 2px solid var(--color-teal);
}

.tactical-border.bottom-right {
    bottom: -2px;
    right: -2px;
    border-bottom: 2px solid var(--color-orange);
    border-right: 2px solid var(--color-orange);
}

/* ═══════════════════════════════════════════════════════════════
   TRACK HEADER - TACTICAL HUD STYLE
   ═══════════════════════════════════════════════════════════════ */

.track-header {
    background: linear-gradient(to right,
        rgba(139, 64, 0, 0.15),
        rgba(0, 0, 0, 0.3),
        rgba(0, 77, 77, 0.15)
    );
    border-bottom: 2px solid var(--color-steel);
    padding: 18px 30px;
    display: flex;
    align-items: center;
    gap: 25px;
    position: relative;
}

.track-header::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, var(--color-orange), var(--color-teal));
}

.track-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 36px;
    font-weight: bold;
    color: var(--color-orange);
    min-width: 80px;
    text-shadow: 0 0 10px rgba(139, 64, 0, 0.8);
}

.number-bracket {
    color: var(--color-teal);
    font-size: 28px;
}

.track-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 26px;
    color: var(--color-text-bright);
    letter-spacing: 6px;
    flex-grow: 1;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

.track-status {
    font-size: 11px;
    color: var(--color-teal);
    padding: 8px 16px;
    border: 2px solid var(--color-teal);
    letter-spacing: 3px;
    background: rgba(0, 77, 77, 0.1);
    clip-path: polygon(
        0 0, calc(100% - 8px) 0, 100% 8px,
        100% 100%, 8px 100%, 0 calc(100% - 8px)
    );
    font-weight: bold;
}

.status-dot {
    color: var(--color-orange);
    animation: pulse-dot 1.5s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* ═══════════════════════════════════════════════════════════════
   TRACK CONTENT
   ═══════════════════════════════════════════════════════════════ */

.track-content {
    display: flex;
    gap: 35px;
    padding: 30px;
}

.track-cover {
    flex-shrink: 0;
    position: relative;
}

.cover-frame {
    position: relative;
    width: 280px;
    height: 280px;
    clip-path: polygon(
        0 15px, 15px 0,
        calc(100% - 15px) 0, 100% 15px,
        100% calc(100% - 15px), calc(100% - 15px) 100%,
        15px 100%, 0 calc(100% - 15px)
    );
    border: 3px solid var(--color-steel);
    box-shadow:
        0 0 20px rgba(0, 0, 0, 0.9),
        inset 0 0 20px rgba(139, 64, 0, 0.2);
    transition: all 0.3s ease;
}

.track-container:hover .cover-frame {
    border-color: var(--color-orange);
    box-shadow:
        0 0 30px rgba(139, 64, 0, 0.4),
        inset 0 0 30px rgba(139, 64, 0, 0.3);
}

.cover-frame img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.cover-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(139, 64, 0, 0.1) 0%,
        transparent 50%,
        rgba(0, 77, 77, 0.1) 100%
    );
    pointer-events: none;
}

.track-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

/* ═══════════════════════════════════════════════════════════════
   TRACK METADATA
   ═══════════════════════════════════════════════════════════════ */

.track-meta {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    padding: 25px;
    background: linear-gradient(135deg,
        rgba(139, 64, 0, 0.08),
        rgba(0, 0, 0, 0.5),
        rgba(0, 77, 77, 0.08)
    );
    border: 2px solid var(--color-steel);
    border-left: 3px solid var(--color-orange);
    border-right: 3px solid var(--color-teal);
    position: relative;
}

.track-meta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(to right,
        var(--color-orange),
        transparent,
        var(--color-teal)
    );
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--color-steel);
    clip-path: polygon(
        0 0, calc(100% - 6px) 0, 100% 6px,
        100% 100%, 6px 100%, 0 calc(100% - 6px)
    );
    transition: all 0.3s ease;
}

.meta-item:hover {
    background: rgba(139, 64, 0, 0.15);
    border-color: var(--color-orange);
}

.meta-label {
    font-size: 9px;
    color: var(--color-text-dim);
    letter-spacing: 2px;
    font-family: 'Terminus', monospace;
    font-weight: bold;
}

.meta-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 18px;
    color: var(--color-text-bright);
    font-weight: bold;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.2);
}

/* ═══════════════════════════════════════════════════════════════
   TRACK DESCRIPTION
   ═══════════════════════════════════════════════════════════════ */

.track-description {
    font-size: 14px;
    color: var(--color-text-main);
    line-height: 1.8;
    padding: 20px;
    background: linear-gradient(to right,
        rgba(0, 77, 77, 0.1),
        rgba(0, 0, 0, 0.3)
    );
    border-left: 3px solid var(--color-teal);
    border-right: 3px solid var(--color-orange);
    font-style: italic;
    position: relative;
}

.desc-label {
    font-family: 'Terminus', monospace;
    font-size: 11px;
    color: var(--color-orange);
    letter-spacing: 2px;
    margin-bottom: 10px;
    font-style: normal;
    font-weight: bold;
}

/* ═══════════════════════════════════════════════════════════════
   AUDIO PLAYER CONTAINER WITH WAVEFORM
   ═══════════════════════════════════════════════════════════════
   Pure CSS waveform - continuously animates as atmospheric element
   ═══════════════════════════════════════════════════════════════ */

.player-container {
    margin-top: auto;
    padding: 25px;
    background: linear-gradient(to right,
        rgba(139, 64, 0, 0.08),
        rgba(0, 77, 77, 0.08)
    );
    border: 1px solid var(--color-steel);
    border-left: 2px solid var(--color-orange);
    position: relative;
}

/* WAVEFORM VISUALIZER - Pure CSS, continuously animating */
.waveform-visualizer {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    height: 60px;
    margin-bottom: 15px;
    padding: 0 10px;
    gap: 3px;
}

.wave-bar {
    flex: 1;
    background: linear-gradient(to top, var(--color-teal), var(--color-orange));
    min-height: 4px;
    height: 20%;
    opacity: 0.4;
    animation: pulse-wave 1.2s ease-in-out infinite;
}

/* Stagger each bar for wave effect */
.wave-bar:nth-child(1) { animation-delay: 0s; }
.wave-bar:nth-child(2) { animation-delay: 0.06s; }
.wave-bar:nth-child(3) { animation-delay: 0.12s; }
.wave-bar:nth-child(4) { animation-delay: 0.18s; }
.wave-bar:nth-child(5) { animation-delay: 0.24s; }
.wave-bar:nth-child(6) { animation-delay: 0.3s; }
.wave-bar:nth-child(7) { animation-delay: 0.36s; }
.wave-bar:nth-child(8) { animation-delay: 0.42s; }
.wave-bar:nth-child(9) { animation-delay: 0.48s; }
.wave-bar:nth-child(10) { animation-delay: 0.54s; }
.wave-bar:nth-child(11) { animation-delay: 0.6s; }
.wave-bar:nth-child(12) { animation-delay: 0.06s; }
.wave-bar:nth-child(13) { animation-delay: 0.12s; }
.wave-bar:nth-child(14) { animation-delay: 0.18s; }
.wave-bar:nth-child(15) { animation-delay: 0.24s; }
.wave-bar:nth-child(16) { animation-delay: 0.3s; }
.wave-bar:nth-child(17) { animation-delay: 0.36s; }
.wave-bar:nth-child(18) { animation-delay: 0.42s; }
.wave-bar:nth-child(19) { animation-delay: 0.48s; }
.wave-bar:nth-child(20) { animation-delay: 0.54s; }

@keyframes pulse-wave {
    0%, 100% {
        height: 20%;
        opacity: 0.4;
    }
    50% {
        height: 75%;
        opacity: 0.8;
    }
}

.audio-player {
    width: 100%;
    height: 40px;
    background-color: var(--void);
    outline: none;
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */

.footer {
    margin-top: 60px;
    padding: 30px 20px;
    background: linear-gradient(to top, var(--color-hull), var(--color-void));
    border-top: 2px solid var(--color-orange);
    text-align: center;
    position: relative;
    z-index: 2;
}

.footer-line {
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        var(--color-orange),
        transparent
    );
    margin-bottom: 15px;
}

.footer-text {
    font-size: 10px;
    color: var(--color-text-dim);
    letter-spacing: 2px;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE DESIGN
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 15px;
        padding: 20px 15px;
    }

    .signal-indicator {
        font-size: 32px;
    }

    .header-text h1 {
        font-size: 28px;
        letter-spacing: 3px;
    }

    .subtext {
        font-size: 10px;
    }

    .oscilloscope {
        height: 80px;
    }

    .scope-header {
        padding: 10px 15px;
        font-size: 10px;
    }

    .nav-bar {
        flex-direction: column;
        gap: 10px;
        padding: 15px;
    }

    .track-container {
        margin-bottom: 30px;
        clip-path: polygon(
            0 15px, 15px 0,
            calc(100% - 15px) 0, 100% 15px,
            100% calc(100% - 15px), calc(100% - 15px) 100%,
            15px 100%, 0 calc(100% - 15px)
        );
    }

    .tactical-border {
        width: 20px;
        height: 20px;
    }

    .track-header {
        padding: 15px 20px;
        gap: 15px;
    }

    .track-content {
        flex-direction: column;
        padding: 20px;
        gap: 25px;
    }

    .cover-frame {
        width: 100%;
        max-width: 280px;
        height: auto;
        aspect-ratio: 1;
        margin: 0 auto;
    }

    .track-meta {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        padding: 20px;
    }

    .meta-item {
        padding: 10px;
    }

    .track-title {
        font-size: 20px;
        letter-spacing: 4px;
    }

    .track-number {
        font-size: 28px;
        min-width: 60px;
    }

    .number-bracket {
        font-size: 22px;
    }

    .waveform-visualizer {
        height: 50px;
    }
}

@media (max-width: 480px) {
    .header-text h1 {
        font-size: 20px;
        letter-spacing: 2px;
    }

    .oscilloscope {
        height: 60px;
    }

    .scope-header {
        padding: 8px 12px;
        font-size: 9px;
        flex-wrap: wrap;
    }

    .track-container {
        clip-path: polygon(
            0 10px, 10px 0,
            calc(100% - 10px) 0, 100% 10px,
            100% calc(100% - 10px), calc(100% - 10px) 100%,
            10px 100%, 0 calc(100% - 10px)
        );
    }

    .tactical-border {
        width: 15px;
        height: 15px;
    }

    .track-header {
        padding: 12px 15px;
        gap: 10px;
    }

    .track-number {
        font-size: 24px;
        min-width: 50px;
    }

    .number-bracket {
        font-size: 18px;
    }

    .track-title {
        font-size: 16px;
        letter-spacing: 2px;
    }

    .track-status {
        font-size: 9px;
        padding: 6px 12px;
    }

    .track-content {
        padding: 15px;
    }

    .track-meta {
        grid-template-columns: 1fr;
        padding: 15px;
        gap: 8px;
    }

    .meta-item {
        padding: 8px;
    }

    .meta-value {
        font-size: 16px;
    }

    .container {
        padding: 20px 10px;
    }

    .waveform-visualizer {
        height: 40px;
        gap: 2px;
    }
}