/* Reset and base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --library-dark: #1a1613;
    --library-deeper: #0f0d0b;
    --shelf-shadow: #2d2520;
    --warm-light: #d4a574;
    --dim-light: #8c7456;
    --paper: #f4ede3;
    --paper-dim: #c9bfb1;
    --accent: #b8945f;
    --silence: #5a4e42;

    --transition-standard: 0.3s ease;
    --transition-slow: 0.6s ease;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Typography */
body {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--paper);
    background: var(--library-deeper);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Layout */
.library {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    background:
        linear-gradient(135deg, var(--library-deeper) 0%, var(--library-dark) 100%);
    position: relative;
}

/* Subtle texture overlay */
.library::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(0,0,0,0.03) 2px,
            rgba(0,0,0,0.03) 4px
        );
    pointer-events: none;
    opacity: 0.5;
}

.listening-room {
    max-width: 600px;
    width: 100%;
    padding: 3rem 2.5rem;
    background: rgba(29, 24, 20, 0.6);
    border: 1px solid rgba(212, 165, 116, 0.15);
    border-radius: 2px;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(212, 165, 116, 0.1);
    backdrop-filter: blur(20px);
    position: relative;
    z-index: 1;
}

/* Header */
.station-header {
    text-align: center;
    margin-bottom: 3rem;
    border-bottom: 1px solid rgba(212, 165, 116, 0.2);
    padding-bottom: 1.5rem;
}

.station-title {
    font-size: 2rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--warm-light);
    margin-bottom: 0.5rem;
}

.station-tagline {
    font-size: 0.875rem;
    color: var(--dim-light);
    font-style: italic;
    letter-spacing: 0.02em;
}

/* Current state */
.current-state {
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin-bottom: 2.5rem;
    position: relative;
}

.show-info {
    text-align: center;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.show-info[aria-hidden="false"] {
    opacity: 1;
    transform: translateY(0);
}

.show-label {
    display: inline-block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 0.75rem;
    padding: 0.25rem 0.75rem;
    border: 1px solid var(--accent);
    border-radius: 2px;
}

.show-title {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--warm-light);
    margin-bottom: 0.5rem;
}

.show-theme {
    font-size: 0.95rem;
    color: var(--paper-dim);
    font-style: italic;
}

.now-playing {
    text-align: center;
    padding: 1.5rem;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.now-playing.active {
    opacity: 1;
    transform: translateY(0);
}

.now-playing.fading .track-title,
.now-playing.fading .track-artist {
    opacity: 0.3;
    transition: opacity 0.2s ease;
}

.track-title {
    font-size: 1.25rem;
    color: var(--paper);
    margin-bottom: 0.5rem;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.track-artist {
    font-size: 1rem;
    color: var(--paper-dim);
    transition: opacity 0.3s ease;
}

.silence-notice {
    text-align: center;
    padding: 2rem;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.silence-notice[aria-hidden="false"] {
    opacity: 1;
    transform: scale(1);
}

.silence-notice p {
    font-size: 1rem;
    color: var(--silence);
    font-style: italic;
    letter-spacing: 0.02em;
}

/* Controls */
.controls {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem 0;
    border-top: 1px solid rgba(212, 165, 116, 0.2);
    border-bottom: 1px solid rgba(212, 165, 116, 0.2);
}

.play-button {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: 2px solid var(--warm-light);
    background: rgba(212, 165, 116, 0.1);
    color: var(--warm-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-standard);
    flex-shrink: 0;
    position: relative;
}

.play-button:hover {
    background: rgba(212, 165, 116, 0.2);
    border-color: var(--accent);
    transform: scale(1.05);
}

.play-button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
}

.play-button:active {
    transform: scale(0.98);
}

.play-button .icon {
    width: 24px;
    height: 24px;
    fill: currentColor;
    position: absolute;
    transition: opacity var(--transition-standard), transform var(--transition-standard);
}

.play-button .icon-play {
    opacity: 1;
    transform: scale(1);
}

.play-button .icon-pause,
.play-button .icon-loading {
    opacity: 0;
    transform: scale(0.8);
}

.play-button[aria-pressed="true"] .icon-play {
    opacity: 0;
    transform: scale(0.8);
}

.play-button[aria-pressed="true"] .icon-pause {
    opacity: 1;
    transform: scale(1);
}

/* Loading state — spinner replaces play/pause */
.play-button.loading .icon-play,
.play-button.loading .icon-pause {
    opacity: 0;
    transform: scale(0.8);
}

.play-button.loading .icon-loading {
    opacity: 1;
    transform: scale(1);
    animation: spin 1.2s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.play-button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Volume */
.volume-control {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
}

.volume-button {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--dim-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-standard);
    flex-shrink: 0;
    position: relative;
}

.volume-button:hover {
    color: var(--warm-light);
}

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

.volume-button .icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
    position: absolute;
    transition: opacity var(--transition-standard), transform var(--transition-standard);
}

.volume-button .icon-volume {
    opacity: 1;
    transform: scale(1);
}

.volume-button .icon-muted {
    opacity: 0;
    transform: scale(0.8);
}

.volume-button.muted .icon-volume {
    opacity: 0;
    transform: scale(0.8);
}

.volume-button.muted .icon-muted {
    opacity: 1;
    transform: scale(1);
}

.volume-slider {
    flex: 1;
    height: 4px;
    border-radius: 2px;
    background: var(--shelf-shadow);
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--warm-light);
    cursor: pointer;
    transition: all var(--transition-standard);
}

.volume-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--warm-light);
    border: none;
    cursor: pointer;
    transition: all var(--transition-standard);
}

.volume-slider::-webkit-slider-thumb:hover {
    background: var(--accent);
    transform: scale(1.2);
}

.volume-slider::-moz-range-thumb:hover {
    background: var(--accent);
    transform: scale(1.2);
}

.volume-slider:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
}

/* Connection status */
.connection-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    color: var(--dim-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    flex-shrink: 0;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--silence);
    transition: background var(--transition-standard), box-shadow var(--transition-standard);
}

.connection-status.connected .status-dot {
    background: var(--warm-light);
    box-shadow: 0 0 8px rgba(212, 165, 116, 0.6);
}

.connection-status.connecting .status-dot {
    background: var(--accent);
    animation: pulse-dot 1.5s ease-in-out infinite;
}

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

.connection-status.error .status-dot {
    background: #8b4545;
}

/* Listener count */
.listener-count {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.875rem;
    color: var(--silence);
    letter-spacing: 0.05em;
}

#listenerNumber {
    color: var(--dim-light);
    font-weight: 500;
}

/* Responsive */
@media (max-width: 640px) {
    .listening-room {
        padding: 2rem 1.5rem;
    }

    .station-title {
        font-size: 1.75rem;
    }

    .show-title {
        font-size: 1.25rem;
    }

    .track-title {
        font-size: 1.1rem;
    }

    .controls {
        flex-wrap: wrap;
    }

    .volume-control {
        order: 3;
        flex-basis: 100%;
        margin-top: 0.5rem;
    }

    .connection-status {
        order: 2;
    }
}

/* Selection color */
::selection {
    background: rgba(212, 165, 116, 0.3);
    color: var(--paper);
}