/* ================================================
   VIBE CODER - CRT/VHS Aesthetic
   ================================================ */

:root {
    /* CRT Color Palette - Warm phosphor tones */
    --phosphor-orange: #ff6b35;
    --phosphor-green: #00ff88;
    --phosphor-amber: #ffcc00;
    --crt-red: #ff0055;
    --crt-cyan: #00ccaa;

    /* Background tones */
    --bg-deep: #0a0908;
    --bg-warm: #12100e;
    --bg-surface: #1a1816;

    /* Text */
    --text-primary: #e8e4dc;
    --text-dim: rgba(232, 228, 220, 0.4);
    --text-glow: rgba(255, 204, 0, 0.8);

    /* Glows */
    --glow-orange: 0 0 20px var(--phosphor-orange), 0 0 40px var(--phosphor-orange);
    --glow-green: 0 0 15px var(--phosphor-green), 0 0 30px var(--phosphor-green);
    --glow-amber: 0 0 10px var(--phosphor-amber);
}

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

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: 'Space Mono', monospace;
    background: var(--bg-deep);
    color: var(--text-primary);
}

/* Three.js Canvas */
#visualizer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* ================================================
   CRT OVERLAY EFFECTS
   ================================================ */

.crt-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* Scanlines */
.scanlines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent 0px,
        transparent 1px,
        rgba(0, 0, 0, 0.3) 1px,
        rgba(0, 0, 0, 0.3) 2px
    );
    opacity: 0.4;
}

/* CRT Flicker */
.crt-flicker {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    animation: flicker 0.15s infinite;
    opacity: 0.02;
}

@keyframes flicker {
    0% { opacity: 0.02; }
    50% { opacity: 0.04; }
    100% { opacity: 0.02; }
}

/* Vignette built into overlay */
.crt-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        ellipse at center,
        transparent 0%,
        transparent 60%,
        rgba(0, 0, 0, 0.6) 100%
    );
}

/* ================================================
   UI LAYER
   ================================================ */

.ui-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    display: flex;
    flex-direction: column;
    padding: 1.5rem 2rem;
    pointer-events: none;
}

.ui-layer > * {
    pointer-events: auto;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: auto;
    animation: fadeIn 1s ease-out;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--phosphor-orange);
    text-shadow: var(--glow-orange);
    animation: pulse-glow 2s ease-in-out infinite;
}

.logo-text {
    font-family: 'Space Mono', monospace;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--phosphor-amber);
    text-shadow: var(--glow-amber);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* Glitch Effect */
.glitch-wrapper {
    position: relative;
    display: inline-block;
}

.glitch {
    position: relative;
    animation: glitch-skew 4s infinite linear alternate-reverse;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    font-family: inherit;
    font-size: inherit;
    font-weight: inherit;
    letter-spacing: inherit;
    text-transform: inherit;
}

.glitch::before {
    color: var(--crt-red);
    animation: glitch-red 0.15s infinite linear alternate-reverse;
    clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
    transform: translateX(-2px);
    opacity: 0.8;
}

.glitch::after {
    color: var(--crt-cyan);
    animation: glitch-cyan 0.12s infinite linear alternate-reverse;
    clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
    transform: translateX(2px);
    opacity: 0.8;
}

@keyframes glitch-red {
    0% {
        transform: translateX(-2px) skewX(0deg);
        opacity: 0.8;
    }
    20% {
        transform: translateX(3px) skewX(-2deg);
        opacity: 0.9;
    }
    40% {
        transform: translateX(-1px) skewX(1deg);
        opacity: 0.7;
    }
    60% {
        transform: translateX(2px) skewX(0deg);
        opacity: 0.85;
    }
    80% {
        transform: translateX(-3px) skewX(2deg);
        opacity: 0.75;
    }
    100% {
        transform: translateX(1px) skewX(-1deg);
        opacity: 0.8;
    }
}

@keyframes glitch-cyan {
    0% {
        transform: translateX(2px) skewX(0deg);
        opacity: 0.8;
    }
    25% {
        transform: translateX(-2px) skewX(1deg);
        opacity: 0.9;
    }
    50% {
        transform: translateX(3px) skewX(-2deg);
        opacity: 0.7;
    }
    75% {
        transform: translateX(-1px) skewX(0deg);
        opacity: 0.85;
    }
    100% {
        transform: translateX(2px) skewX(1deg);
        opacity: 0.8;
    }
}

@keyframes glitch-skew {
    0% {
        transform: skewX(0deg);
    }
    10% {
        transform: skewX(0.5deg);
    }
    20% {
        transform: skewX(-0.5deg);
    }
    30% {
        transform: skewX(0deg);
    }
    40% {
        transform: skewX(1deg);
    }
    50% {
        transform: skewX(-1deg);
    }
    60% {
        transform: skewX(0deg);
    }
    70% {
        transform: skewX(0.5deg);
    }
    80% {
        transform: skewX(-0.5deg);
    }
    90% {
        transform: skewX(0.3deg);
    }
    100% {
        transform: skewX(0deg);
    }
}

.header-subtitle {
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    color: var(--text-dim);
    letter-spacing: 0.4em;
    margin-top: 0.25rem;
    text-transform: uppercase;
}

/* ================================================
   LYRICS OVERLAY
   ================================================ */

.lyrics-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    width: 90%;
    max-width: 900px;
    pointer-events: none;
}

.lyric-current {
    font-family: 'Space Mono', monospace;
    font-size: clamp(1.2rem, 4vw, 2.2rem);
    font-weight: 700;
    color: var(--phosphor-amber);
    text-shadow:
        0 0 10px var(--phosphor-amber),
        0 0 20px var(--phosphor-orange),
        0 0 40px var(--phosphor-orange);
    line-height: 1.4;
    margin-bottom: 0.5rem;
    transition: all 0.15s ease-out;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.lyric-current.drop {
    color: var(--crt-red);
    text-shadow:
        0 0 20px var(--crt-red),
        0 0 40px var(--crt-red),
        0 0 80px var(--crt-red);
    transform: scale(1.1);
}

.lyric-current.section {
    font-size: clamp(0.8rem, 2vw, 1rem);
    color: var(--phosphor-green);
    text-shadow: var(--glow-green);
    letter-spacing: 0.3em;
}

.lyric-next {
    display: none; /* Hidden - was causing confusion */
}

/* Annotation styling */
.lyric-annotation {
    display: inline;
    font-size: 0.7em;
    color: var(--phosphor-green);
    opacity: 0.8;
    margin-left: 0.5em;
}

/* ================================================
   PLAYER CONTROLS
   ================================================ */

.player-controls {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: linear-gradient(to top, rgba(10, 9, 8, 0.9) 0%, transparent 100%);
    padding: 1.5rem 0 0;
    margin: 0 -2rem -1.5rem;
    padding-left: 2rem;
    padding-right: 2rem;
    padding-bottom: 1.5rem;
}

/* Progress Bar */
.progress-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.time {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    color: var(--phosphor-green);
    min-width: 40px;
    text-shadow: var(--glow-green);
}

.current-time {
    text-align: right;
}

.progress-bar {
    flex: 1;
    height: 4px;
    background: var(--bg-surface);
    border-radius: 2px;
    cursor: pointer;
    position: relative;
    overflow: visible;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--phosphor-green), var(--phosphor-amber));
    border-radius: 2px;
    position: relative;
    box-shadow: 0 0 10px var(--phosphor-green);
    transition: width 0.1s linear;
}

.progress-head {
    position: absolute;
    top: 50%;
    right: -6px;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    background: var(--phosphor-amber);
    border-radius: 50%;
    box-shadow: var(--glow-amber);
    opacity: 0;
    transition: opacity 0.2s;
}

.progress-bar:hover .progress-head {
    opacity: 1;
}

/* Control Buttons Wrapper */
.controls-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.controls-spacer {
    width: 44px; /* Match restart button width for balance */
}

.restart-btn {
    opacity: 0.6;
}

.restart-btn:hover {
    opacity: 1;
}

/* Control Buttons */
.controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
}

.control-btn {
    background: transparent;
    border: 2px solid var(--text-dim);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-dim);
    transition: all 0.2s ease;
}

.control-btn svg {
    width: 18px;
    height: 18px;
}

.control-btn:hover {
    border-color: var(--phosphor-orange);
    color: var(--phosphor-orange);
    box-shadow: 0 0 15px rgba(255, 107, 53, 0.3);
}

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

.play-btn {
    width: 64px;
    height: 64px;
    border-width: 3px;
    background: rgba(255, 107, 53, 0.1);
}

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

.play-btn:hover {
    background: rgba(255, 107, 53, 0.2);
}

.hidden {
    display: none;
}

/* Volume Control */
.volume-control {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.volume-btn {
    width: 36px;
    height: 36px;
    border-radius: 6px;
}

.volume-btn svg {
    width: 16px;
    height: 16px;
}

.volume-slider {
    width: 100px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-surface);
    border-radius: 2px;
    cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--phosphor-green);
    border-radius: 50%;
    box-shadow: var(--glow-green);
    cursor: pointer;
}

.volume-slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--phosphor-green);
    border-radius: 50%;
    border: none;
    box-shadow: var(--glow-green);
    cursor: pointer;
}

/* ================================================
   VHS GLITCH OVERLAY
   ================================================ */

.vhs-glitch {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 100;
    opacity: 0;
    transition: opacity 0.05s;
}

.vhs-glitch.active {
    opacity: 1;
    animation: vhs-noise 0.2s steps(10) forwards;
}

@keyframes vhs-noise {
    0% {
        background: linear-gradient(
            0deg,
            transparent 0%,
            rgba(255, 0, 85, 0.1) 2%,
            transparent 4%,
            transparent 96%,
            rgba(0, 255, 136, 0.1) 98%,
            transparent 100%
        );
        transform: translateX(-2px);
    }
    25% {
        background: linear-gradient(
            0deg,
            transparent 0%,
            transparent 45%,
            rgba(255, 107, 53, 0.15) 46%,
            rgba(255, 107, 53, 0.15) 48%,
            transparent 49%,
            transparent 100%
        );
        transform: translateX(3px);
    }
    50% {
        background: linear-gradient(
            0deg,
            transparent 0%,
            rgba(0, 255, 136, 0.1) 10%,
            transparent 12%,
            transparent 88%,
            rgba(255, 0, 85, 0.1) 90%,
            transparent 100%
        );
        transform: translateX(-1px);
    }
    75% {
        background: linear-gradient(
            0deg,
            transparent 0%,
            transparent 70%,
            rgba(255, 204, 0, 0.1) 72%,
            transparent 74%,
            transparent 100%
        );
        transform: translateX(2px);
    }
    100% {
        background: transparent;
        transform: translateX(0);
    }
}

/* Screen shake class */
.screen-shake {
    animation: shake 0.15s ease-out;
}

@keyframes shake {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(-5px, 3px); }
    50% { transform: translate(5px, -3px); }
    75% { transform: translate(-3px, 5px); }
}

/* ================================================
   ANIMATIONS
   ================================================ */

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-glow {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Beat pulse effect */
.beat-pulse .lyric-current {
    animation: beat-text 0.1s ease-out;
}

@keyframes beat-text {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* ================================================
   RESPONSIVE
   ================================================ */

@media (max-width: 768px) {
    .ui-layer {
        padding: 1rem;
    }

    .logo-text {
        font-size: 1.4rem;
        letter-spacing: 0.1em;
    }

    .header-subtitle {
        font-size: 0.55rem;
    }

    .player-controls {
        gap: 0.75rem;
        margin: 0 -1rem -1rem;
        padding: 1rem;
    }

    .controls {
        gap: 1rem;
    }

    .control-btn {
        width: 40px;
        height: 40px;
    }

    .controls-spacer {
        width: 40px;
    }

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

    .volume-control {
        display: none;
    }
}

/* ================================================
   TAP-TO-SYNC MODE
   ================================================ */

.sync-mode-active::before {
    content: '🎵 SYNC MODE — Tap SPACE when you hear each line | BACKSPACE to undo | T to exit';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--crt-red);
    color: white;
    text-align: center;
    padding: 12px 20px;
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    font-weight: 700;
    z-index: 9999;
    animation: pulse-glow 1s ease-in-out infinite;
    box-shadow: 0 0 20px var(--crt-red);
}

.lyric-current.sync-mode {
    font-size: clamp(1rem, 3vw, 1.8rem);
    line-height: 1.6;
}

.sync-mode-active .progress-fill {
    background: linear-gradient(90deg, var(--crt-red), var(--phosphor-orange));
}

/* ================================================
   CHROMATIC ABERRATION (applied via JS)
   ================================================ */

.chromatic-aberration {
    position: relative;
}

.chromatic-aberration::before,
.chromatic-aberration::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.8;
}

.chromatic-aberration::before {
    color: var(--crt-red);
    transform: translateX(-2px);
    mix-blend-mode: screen;
}

.chromatic-aberration::after {
    color: var(--crt-cyan);
    transform: translateX(2px);
    mix-blend-mode: screen;
}