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

:root {
    --bg: #111318;
    --green: #39ff6a;
    --green-dim: #2ecc5a;
    --border: #2a2f3a;
    --border-dim: #1a1d21;
    --text: #e0e4e8;
    --text-dim: #8a9199;
    --panel-bg: rgba(17, 19, 24, 0.92);
    --accent-glow: 0 0 8px rgba(57, 255, 106, 0.3);
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--bg);
    font-family: "Courier New", Courier, monospace;
    color: var(--text);
}

#gl-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#record-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0;
    pointer-events: none;
}

#vibes-frame {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    display: none;
    border: none;
    background: #000;
}

#vibes-frame.hidden-audio {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 0;
    opacity: 0;
    pointer-events: none;
    z-index: 0;
}

.brand-overlay {
    position: fixed;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 5;
    font-family: "Courier New", Courier, monospace;
    font-size: 3.2rem;
    font-weight: bold;
    letter-spacing: 8px;
    text-transform: uppercase;
    color: rgba(57, 255, 106, 0.9);
    -webkit-text-stroke: 2px rgba(0, 0, 0, 0.9);
    paint-order: stroke fill;
    text-shadow: 0 0 40px rgba(57, 255, 106, 0.5), 0 0 80px rgba(57, 255, 106, 0.25);
    pointer-events: none;
    user-select: none;
}

.audio-meter {
    display: flex;
    gap: 3px;
    height: 6px;
    margin-top: 8px;
    opacity: 0;
    transition: opacity 0.3s;
}

.audio-meter.active {
    opacity: 1;
}

.meter-bar {
    flex: 1;
    height: 100%;
    background: var(--border);
    border-radius: 1px;
    transition: background 0.05s;
}

.meter-bar.lit {
    background: var(--green);
}

.tone-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    margin-bottom: 8px;
}

.tone-btn {
    padding: 6px 0;
    background: var(--border-dim);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text-dim);
    font-family: inherit;
    font-size: 0.6rem;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.15s;
}

.tone-btn:hover {
    border-color: var(--green);
    color: var(--text);
}

.tone-btn.active {
    background: rgba(57, 255, 106, 0.15);
    border-color: var(--green);
    color: var(--green);
    box-shadow: var(--accent-glow);
}

.sequence-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 10px;
    max-height: 200px;
    overflow-y: auto;
}

.sequence-row {
    display: grid;
    grid-template-columns: 1fr 70px 70px 50px 50px 24px;
    gap: 4px;
    align-items: center;
    background: var(--border-dim);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 4px 6px;
}

.sequence-row select,
.sequence-row input {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 2px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.65rem;
    padding: 3px 4px;
}

.sequence-row input {
    text-align: center;
}

.seq-del {
    background: transparent;
    border: none;
    color: #ff4444;
    font-size: 0.8rem;
    cursor: pointer;
    padding: 0;
}

.sequence-controls {
    display: flex;
    gap: 8px;
}

.seq-btn {
    flex: 1;
    padding: 6px 0;
    background: var(--border-dim);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.7rem;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.15s;
}

.seq-btn:hover {
    border-color: var(--green);
    color: var(--green);
}

.seq-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

#seq-render {
    background: rgba(57, 255, 106, 0.08);
    border-color: rgba(57, 255, 106, 0.4);
    color: var(--green);
}

.controls-panel {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 10;
    width: 260px;
    background: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    backdrop-filter: blur(6px);
    transition: transform 0.25s ease;
}

.controls-panel.collapsed .panel-body {
    display: none;
}

.panel-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    width: 100%;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.panel-toggle:hover .toggle-bar {
    background: var(--green);
}

.toggle-bar {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-dim);
    border-radius: 1px;
    transition: background 0.15s;
}

.panel-body {
    padding: 0 16px 16px;
    max-height: calc(100vh - 60px);
    overflow-y: auto;
}

.panel-body h2 {
    font-size: 0.85rem;
    color: var(--green);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.control-group {
    margin-bottom: 14px;
}

.control-group label {
    display: block;
    font-size: 0.65rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.control-group label span {
    float: right;
    color: var(--green);
}

.control-group select,
.control-group input[type="range"] {
    width: 100%;
    background: var(--border-dim);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.75rem;
    padding: 6px 8px;
    outline: none;
}

.control-group select:focus {
    border-color: var(--green);
}

.control-group input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    padding: 0;
    cursor: pointer;
    background: var(--border);
}

.control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    background: var(--green);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--accent-glow);
}

.control-group input[type="range"]::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--green);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: var(--accent-glow);
}

.toggle-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.toggle-group label {
    margin-bottom: 0;
}

.toggle-btn {
    padding: 4px 12px;
    background: var(--border-dim);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text-dim);
    font-family: inherit;
    font-size: 0.65rem;
    cursor: pointer;
    transition: all 0.15s;
}

.toggle-btn.active {
    background: rgba(57, 255, 106, 0.12);
    border-color: var(--green);
    color: var(--green);
}

.control-hint {
    font-size: 0.6rem;
    color: var(--text-dim);
    margin-top: 4px;
    line-height: 1.3;
}

.app-link {
    display: block;
    font-size: 0.7rem;
    color: var(--green);
    text-decoration: none;
    padding: 6px 0;
    border: 1px solid var(--border);
    border-radius: 3px;
    text-align: center;
    transition: all 0.15s;
}

.app-link:hover {
    border-color: var(--green);
    background: rgba(57, 255, 106, 0.08);
}

.popout-btn {
    width: 100%;
    padding: 8px 0;
    background: var(--border-dim);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.75rem;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.15s;
}

.popout-btn:hover {
    border-color: var(--green);
    color: var(--green);
}

.visibility-warning {
    display: none;
    padding: 8px 10px;
    background: rgba(255, 68, 68, 0.12);
    border: 1px solid #ff4444;
    border-radius: 3px;
    color: #ff8888;
    font-size: 0.65rem;
    text-align: center;
    margin-bottom: 12px;
}

.visibility-warning.show {
    display: block;
}

.record-group {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
}

.record-btn {
    flex: 1;
    padding: 8px 0;
    background: var(--border-dim);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.75rem;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.15s;
}

.record-btn:hover {
    border-color: #ff4444;
    color: #ff4444;
}

.record-btn.recording {
    background: rgba(255, 68, 68, 0.12);
    border-color: #ff4444;
    color: #ff4444;
    animation: pulse-record 1.2s infinite;
}

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

.record-timer {
    font-size: 0.8rem;
    color: var(--text-dim);
    min-width: 44px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.record-timer.recording {
    color: #ff4444;
}

@media (max-width: 600px) {
    .controls-panel {
        width: calc(100% - 32px);
        max-width: 260px;
    }
}