/* ============================================
   ACOUSTIC LEVITATION FREQUENCY GENERATOR
   Stone Singing Protocol - Ancient Tech UI
   ============================================ */

.levitation-generator {
    background: linear-gradient(135deg, #0a0a0f 0%, #0d1117 50%, #0a0a0f 100%);
    border-radius: 12px;
    padding: 24px;
    min-height: 100%;
}

.levitation-header {
    text-align: center;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(0, 255, 136, 0.2);
}

.levitation-header h2 {
    font-size: 1.8rem;
    background: linear-gradient(135deg, #00ff88, #00ffcc, #ffaa00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.levitation-subtitle {
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
    font-size: 1rem;
}

/* Navigation to other audio experiences */
.lev-nav-links {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.lev-nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: rgba(0, 255, 136, 0.08);
    border: 1px solid rgba(0, 255, 136, 0.25);
    border-radius: 25px;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.lev-nav-link:hover {
    background: rgba(0, 255, 136, 0.15);
    border-color: rgba(0, 255, 204, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3), 0 0 15px rgba(0, 255, 136, 0.2);
}

.lev-nav-icon {
    font-size: 1.1rem;
}

.lev-nav-link.lev-external::after {
    content: '↗';
    font-size: 0.7rem;
    opacity: 0.5;
    margin-left: 4px;
}

/* Main Layout */
.levitation-main {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

@media (max-width: 1024px) {
    .levitation-main {
        grid-template-columns: 1fr;
    }
}

/* Controls Panel */
.levitation-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.control-section {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 255, 136, 0.15);
    border-radius: 8px;
    padding: 16px;
}

.control-section h4 {
    color: #00ff88;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

/* Master Controls */
.master-controls {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.levitation-btn {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(0, 255, 204, 0.1));
    border: 2px solid #00ff88;
    color: #00ff88;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.levitation-btn:hover {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.2), rgba(0, 255, 204, 0.2));
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
    transform: translateY(-2px);
}

.levitation-btn.large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.levitation-btn.primary {
    background: linear-gradient(135deg, #00ff88, #00cc66);
    color: #0a0a0f;
    border-color: #00ff88;
}

.levitation-btn.primary:hover {
    background: linear-gradient(135deg, #00ffaa, #00ff88);
}

.levitation-btn.playing {
    background: linear-gradient(135deg, #ff4444, #cc2222);
    border-color: #ff4444;
    color: #ffffff;
    animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(255, 68, 68, 0.3); }
    50% { box-shadow: 0 0 40px rgba(255, 68, 68, 0.6); }
}

.play-icon {
    font-size: 1.2em;
}

.master-volume {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.master-volume label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
}

.master-volume input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.5);
    appearance: none;
    -webkit-appearance: none;
}

.master-volume input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #00ff88;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

#volume-display {
    color: #00ff88;
    font-weight: bold;
    text-align: right;
}

/* Presets */
.preset-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.preset-btn {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 170, 0, 0.3);
    color: #ffaa00;
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.preset-btn:hover {
    background: rgba(255, 170, 0, 0.15);
    border-color: #ffaa00;
}

.preset-btn.active {
    background: rgba(255, 170, 0, 0.3);
    border-color: #ffaa00;
    box-shadow: 0 0 10px rgba(255, 170, 0, 0.3);
}

/* Modulation Controls */
.modulation {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
}

.toggle-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #00ff88;
}

.modulation-control {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.modulation-control label {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.8rem;
}

.modulation-control input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(0, 0, 0, 0.5);
    appearance: none;
}

.modulation-control input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #8800ff;
    cursor: pointer;
}

/* Frequency Layers */
.frequency-layers {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-height: 500px;
    overflow-y: auto;
    padding-right: 8px;
}

.frequency-layers::-webkit-scrollbar {
    width: 6px;
}

.frequency-layers::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 3px;
}

.frequency-layers::-webkit-scrollbar-thumb {
    background: rgba(0, 255, 136, 0.3);
    border-radius: 3px;
}

.frequency-layer {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 12px;
}

.layer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    margin-bottom: 8px;
}

.layer-header h4 {
    color: #ffffff;
    font-size: 0.9rem;
    margin: 0;
}

.layer-toggle-all {
    color: rgba(0, 255, 136, 0.6);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: color 0.2s;
}

.layer-toggle-all:hover {
    color: #00ff88;
}

.layer-description {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    margin-bottom: 10px;
    font-style: italic;
}

.frequency-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.freq-toggle {
    display: grid;
    grid-template-columns: 24px 1fr auto 20px;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.freq-toggle:hover {
    background: rgba(0, 0, 0, 0.5);
    border-color: var(--freq-color, #00ff88);
}

.freq-toggle input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--freq-color, #00ff88);
}

.freq-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.85rem;
}

.freq-hz {
    color: var(--freq-color, #00ff88);
    font-size: 0.8rem;
    font-family: 'Monaco', 'Consolas', monospace;
}

.freq-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.freq-toggle input:checked ~ .freq-indicator {
    background: var(--freq-color, #00ff88);
    box-shadow: 0 0 10px var(--freq-color, #00ff88);
}

/* Visualization Panel */
.levitation-visualization {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.viz-section {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(0, 255, 136, 0.1);
    border-radius: 8px;
    padding: 12px;
}

.viz-section h4 {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.mandala-section canvas {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 8px;
    background: #0a0a0f;
}

.waveform-section canvas,
.spectrum-section canvas {
    width: 100%;
    height: 100px;
    border-radius: 4px;
    background: #0a0a0f;
}

/* Info Panels */
.levitation-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

@media (max-width: 900px) {
    .levitation-info {
        grid-template-columns: 1fr;
    }
}

.info-panel {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 16px;
}

.info-panel h4 {
    color: #ffaa00;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 170, 0, 0.2);
}

.info-panel p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    line-height: 1.5;
}

.info-panel ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.info-panel li {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8rem;
    padding: 6px 0;
    padding-left: 16px;
    position: relative;
}

.info-panel li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #00ff88;
}

.info-panel li strong {
    color: #00ff88;
}

/* Active Frequencies List */
.active-frequencies {
    max-height: 200px;
    overflow-y: auto;
}

#active-freq-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.active-freq-item {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 0, 0, 0.4);
    padding: 6px 12px;
    border-radius: 16px;
    border: 1px solid var(--freq-color, #00ff88);
}

.freq-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--freq-color, #00ff88);
    box-shadow: 0 0 8px var(--freq-color, #00ff88);
    animation: freq-pulse 1s infinite;
}

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

.freq-value {
    color: var(--freq-color, #00ff88);
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.8rem;
    font-weight: bold;
}

.freq-name {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
}

.no-freq {
    color: rgba(255, 255, 255, 0.4);
    font-style: italic;
    font-size: 0.85rem;
}

/* Ancient Context Panel */
.ancient-context p {
    line-height: 1.6;
}

/* Physics Notes */
.physics-notes li::before {
    background: #8800ff;
}

/* Landing audio controls removed - using simple toggle button only */