/* ===== RC-505 MK II Simulator - Hardware Dark Theme ===== */

@import url('https://fonts.googleapis.com/css2?family=Roboto+Mono:wght@300;400;500;700&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --chassis-bg: #1a1a1e;
    --chassis-dark: #111114;
    --chassis-border: #333;
    --surface: #222226;
    --surface-raised: #2a2a2e;
    --surface-inset: #151518;

    --boss-red: #e53935;
    --boss-orange: #ff7043;
    --boss-green: #43a047;
    --boss-blue: #1e88e5;
    --boss-yellow: #ffab00;

    --led-empty: #333;
    --led-recording: #ff1744;
    --led-playing: #00e676;
    --led-overdubbing: #ffab00;
    --led-stopped: #666;

    --fader-track-bg: #0d0d10;
    --fader-fill: #00e676;
    --knob-indicator: #ff7043;

    --text-label: #888;
    --text-bright: #ddd;
    --text-dim: #555;
    --text-white: #fff;

    --font-display: 'Roboto Mono', monospace;
    --font-ui: 'Inter', sans-serif;
}

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

body {
    background: #0a0a0c;
    color: var(--text-bright);
    font-family: var(--font-ui);
    overflow-x: auto;
    overflow-y: auto;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 20px;
}

/* ===== Main Chassis ===== */
.rc505 {
    width: 1100px;
    background: var(--chassis-bg);
    border-radius: 16px;
    border: 1px solid var(--chassis-border);
    box-shadow: 0 8px 40px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.04);
    overflow: hidden;
}

/* ===== Header Bar ===== */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    background: linear-gradient(180deg, #252528, #1e1e22);
    border-bottom: 1px solid #333;
}

.header .brand {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 14px;
    color: var(--text-bright);
    letter-spacing: 2px;
}

.header .brand span { color: var(--boss-orange); }

.header .model {
    font-family: var(--font-display);
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 1px;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mic-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--surface);
    border: 1px solid #444;
    border-radius: 6px;
    color: var(--text-label);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.mic-btn:hover { background: #333; border-color: #555; }
.mic-btn.active { background: #1b2e1b; border-color: var(--boss-green); color: var(--led-playing); }
.mic-btn .mic-led {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--led-empty);
    transition: background 0.2s;
}
.mic-btn.active .mic-led { background: var(--led-playing); box-shadow: 0 0 8px var(--led-playing); }

.input-level-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-label);
}

.input-meter {
    width: 60px;
    height: 6px;
    border-radius: 3px;
}

/* ===== Effects Section ===== */
.fx-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: #1a1a1e;
    border-bottom: 1px solid #333;
}

.fx-panel {
    padding: 12px 16px;
    background: var(--surface);
}

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

.fx-panel-title {
    font-family: var(--font-display);
    font-size: 11px;
    color: var(--boss-orange);
    letter-spacing: 1px;
}

.fx-banks {
    display: flex;
    gap: 4px;
}

.fx-bank-btn {
    width: 24px; height: 20px;
    background: var(--surface-inset);
    border: 1px solid #333;
    border-radius: 3px;
    color: var(--text-dim);
    font-size: 10px;
    font-family: var(--font-display);
    cursor: pointer;
    transition: all 0.2s;
}

.fx-bank-btn.active { background: var(--boss-orange); color: #000; border-color: var(--boss-orange); }

.fx-slots {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.fx-slot {
    display: grid;
    grid-template-columns: 90px 1fr 36px;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
}

.fx-slot select {
    width: 100%;
    padding: 4px 6px;
    background: var(--surface-inset);
    border: 1px solid #333;
    border-radius: 4px;
    color: var(--text-bright);
    font-size: 11px;
    font-family: var(--font-display);
    cursor: pointer;
    appearance: none;
}

.fx-slot select:focus { border-color: var(--boss-orange); outline: none; }

.fx-params {
    display: flex;
    gap: 4px;
}

.fx-toggle {
    width: 36px; height: 24px;
    background: var(--surface-inset);
    border: 1px solid #444;
    border-radius: 4px;
    color: var(--text-dim);
    font-size: 9px;
    font-family: var(--font-display);
    cursor: pointer;
    transition: all 0.2s;
}

.fx-toggle.active { background: var(--boss-green); color: #000; border-color: var(--boss-green); }

/* ===== Voice FX Bar ===== */
.voice-fx-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    background: var(--surface-inset);
    border-bottom: 1px solid #222;
}

.voice-fx-title {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 700;
    color: var(--boss-orange);
    letter-spacing: 1px;
    margin-right: 4px;
    white-space: nowrap;
}

.vfx-btn-desktop {
    padding: 4px 10px;
    border: 1px solid #444;
    border-radius: 4px;
    background: var(--surface);
    color: var(--text-label);
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.vfx-btn-desktop:hover {
    background: var(--surface-raised);
    border-color: #666;
}

.vfx-btn-desktop.active {
    background: var(--boss-blue);
    border-color: var(--boss-blue);
    color: #fff;
}

/* ===== Track Section ===== */
.tracks-section {
    padding: 16px 20px;
}

.tracks-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
}

.track {
    background: var(--surface);
    border-radius: 10px;
    border: 1px solid #333;
    padding: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transition: border-color 0.3s;
}

.track[data-state="RECORDING"] { border-color: var(--led-recording); }
.track[data-state="PLAYING"] { border-color: var(--led-playing); }
.track[data-state="OVERDUBBING"] { border-color: var(--led-overdubbing); }
.track[data-state="STOPPED"] { border-color: var(--led-stopped); }

.track-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.track-number {
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 700;
    color: var(--text-label);
}

.track-state-led {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--led-empty);
    transition: all 0.3s;
}

.track[data-state="RECORDING"] .track-state-led { background: var(--led-recording); box-shadow: 0 0 10px var(--led-recording); }
.track[data-state="PLAYING"] .track-state-led { background: var(--led-playing); box-shadow: 0 0 10px var(--led-playing); }
.track[data-state="OVERDUBBING"] .track-state-led { background: var(--led-overdubbing); box-shadow: 0 0 10px var(--led-overdubbing); }
.track[data-state="STOPPED"] .track-state-led { background: var(--led-stopped); }

/* Waveform */
.track-waveform {
    width: 100%;
    height: 50px;
    border-radius: 6px;
    background: var(--surface-inset);
    overflow: hidden;
}

.track-waveform canvas {
    width: 100%;
    height: 100%;
}

/* Track info */
.track-info {
    font-family: var(--font-display);
    font-size: 10px;
    color: var(--text-dim);
    text-align: center;
    height: 14px;
}

/* Track level meter */
.track-meter {
    width: 100%;
    height: 4px;
    border-radius: 2px;
}

/* Buttons */
.track-buttons {
    display: flex;
    gap: 6px;
    width: 100%;
}

.btn-rec-play {
    flex: 1;
    height: 38px;
    border: 1px solid #555;
    border-radius: 8px;
    background: linear-gradient(180deg, #3a3a3e, #2a2a2e);
    color: var(--text-bright);
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    letter-spacing: 0.5px;
}

.btn-rec-play:hover { background: linear-gradient(180deg, #444, #333); }
.btn-rec-play:active { transform: scale(0.97); }

.track[data-state="RECORDING"] .btn-rec-play { background: var(--led-recording); color: #fff; border-color: var(--led-recording); }
.track[data-state="PLAYING"] .btn-rec-play { background: var(--led-playing); color: #000; border-color: var(--led-playing); }
.track[data-state="OVERDUBBING"] .btn-rec-play { background: var(--led-overdubbing); color: #000; border-color: var(--led-overdubbing); }

.btn-stop {
    width: 38px;
    height: 38px;
    border: 1px solid #444;
    border-radius: 8px;
    background: linear-gradient(180deg, #333, #252528);
    color: var(--text-label);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-stop:hover { background: #3a3a3e; }
.btn-stop:active { transform: scale(0.97); }

/* Controls row */
.track-controls {
    display: flex;
    align-items: flex-start;
    gap: 4px;
    width: 100%;
    justify-content: center;
}

/* Fader */
.fader-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.fader-label {
    font-size: 9px;
    color: var(--text-dim);
    font-family: var(--font-display);
    letter-spacing: 0.5px;
}

.fader-track {
    width: 20px;
    background: var(--fader-track-bg);
    border-radius: 10px;
    position: relative;
    cursor: pointer;
    border: 1px solid #222;
}

.fader-fill {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(0deg, var(--fader-fill), #007a3a);
    border-radius: 0 0 10px 10px;
    pointer-events: none;
    opacity: 0.4;
}

.fader-thumb {
    position: absolute;
    top: 0;
    left: -2px;
    right: -2px;
    height: 16px;
    background: linear-gradient(180deg, #bbb, #888, #bbb);
    border-radius: 4px;
    border: 1px solid #666;
    pointer-events: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.4);
}

.fader-container.active .fader-thumb { background: linear-gradient(180deg, #ddd, #aaa, #ddd); }

/* Knob */
.knob-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.knob-label {
    font-size: 9px;
    color: var(--text-dim);
    font-family: var(--font-display);
    letter-spacing: 0.5px;
}

.knob-body {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(145deg, #4a4a50, #303035, #4a4a50);
    border: 1px solid #555;
    position: relative;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}

.knob-indicator {
    position: absolute;
    top: 3px;
    left: 50%;
    width: 3px;
    height: 10px;
    margin-left: -1.5px;
    background: var(--knob-indicator);
    border-radius: 2px;
}

.knob-cap {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #222;
}

.knob-value {
    font-size: 9px;
    color: var(--text-dim);
    font-family: var(--font-display);
    min-width: 30px;
    text-align: center;
}

.knob-container.active .knob-body {
    border-color: var(--boss-orange);
    box-shadow: 0 0 8px rgba(255, 112, 67, 0.3);
}

/* Small knobs for FX */
.fx-params .knob-container .knob-body { width: 22px; height: 22px; }
.fx-params .knob-container .knob-indicator { width: 2px; height: 7px; margin-left: -1px; top: 2px; }
.fx-params .knob-container .knob-cap { width: 6px; height: 6px; }
.fx-params .knob-container .knob-value { font-size: 8px; }
.fx-params .knob-container .knob-label { font-size: 8px; }

/* Action buttons row */
.track-actions {
    display: flex;
    gap: 4px;
    width: 100%;
}

.btn-action {
    flex: 1;
    height: 22px;
    border: 1px solid #333;
    border-radius: 4px;
    background: var(--surface-inset);
    color: var(--text-dim);
    font-size: 9px;
    font-family: var(--font-display);
    cursor: pointer;
    transition: all 0.15s;
}

.btn-action:hover { background: #2a2a2e; border-color: #444; color: var(--text-label); }
.btn-action.active { background: var(--boss-blue); color: #fff; border-color: var(--boss-blue); }

/* ===== Bottom Control Section ===== */
.bottom-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: #1a1a1e;
    border-top: 1px solid #333;
}

.bottom-panel {
    padding: 14px 20px;
    background: var(--surface);
}

.panel-title {
    font-family: var(--font-display);
    font-size: 11px;
    color: var(--boss-orange);
    letter-spacing: 1px;
    margin-bottom: 10px;
}

/* Rhythm Section */
.rhythm-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: flex-end;
}

.rhythm-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.rhythm-group label {
    font-size: 10px;
    color: var(--text-dim);
    font-family: var(--font-display);
}

.rhythm-group select {
    padding: 4px 8px;
    background: var(--surface-inset);
    border: 1px solid #333;
    border-radius: 4px;
    color: var(--text-bright);
    font-size: 11px;
    font-family: var(--font-display);
    cursor: pointer;
    appearance: none;
    min-width: 110px;
}

.rhythm-group select:focus { border-color: var(--boss-orange); outline: none; }

.bpm-display {
    display: flex;
    align-items: center;
    gap: 6px;
}

.bpm-value {
    width: 70px;
    padding: 4px 8px;
    background: #0a0a0c;
    border: 1px solid #333;
    border-radius: 4px;
    color: var(--boss-orange);
    font-size: 18px;
    font-family: var(--font-display);
    font-weight: 700;
    text-align: center;
}

.bpm-value:focus { border-color: var(--boss-orange); outline: none; }

.btn-rhythm {
    padding: 6px 14px;
    height: 32px;
    border: 1px solid #444;
    border-radius: 6px;
    background: linear-gradient(180deg, #3a3a3e, #2a2a2e);
    color: var(--text-bright);
    font-family: var(--font-display);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-rhythm:hover { background: linear-gradient(180deg, #444, #333); }
.btn-rhythm:active { transform: scale(0.97); }
.btn-rhythm.active { background: var(--boss-green); color: #000; border-color: var(--boss-green); }

.variation-btns {
    display: flex;
    gap: 3px;
}

.btn-var {
    width: 24px; height: 24px;
    border: 1px solid #333;
    border-radius: 4px;
    background: var(--surface-inset);
    color: var(--text-dim);
    font-size: 10px;
    font-family: var(--font-display);
    cursor: pointer;
    transition: all 0.15s;
}

.btn-var.active { background: var(--boss-blue); color: #fff; border-color: var(--boss-blue); }

/* Step indicators */
.step-display {
    display: flex;
    gap: 2px;
    margin-top: 6px;
}

.step-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: #222;
    transition: background 0.05s;
}

.step-dot.active { background: var(--boss-orange); box-shadow: 0 0 4px var(--boss-orange); }
.step-dot.beat { background: #333; }

/* Master Section */
.master-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: flex-end;
}

.master-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.master-group label {
    font-size: 10px;
    color: var(--text-dim);
    font-family: var(--font-display);
}

.master-meter { width: 100px; height: 8px; border-radius: 4px; }

.patch-display {
    display: flex;
    align-items: center;
    gap: 6px;
}

.patch-number {
    width: 50px;
    padding: 4px 8px;
    background: #0a0a0c;
    border: 1px solid #333;
    border-radius: 4px;
    color: var(--boss-blue);
    font-size: 16px;
    font-family: var(--font-display);
    font-weight: 700;
    text-align: center;
}

.patch-number:focus { border-color: var(--boss-blue); outline: none; }

.btn-patch {
    padding: 5px 10px;
    height: 28px;
    border: 1px solid #444;
    border-radius: 5px;
    background: linear-gradient(180deg, #333, #252528);
    color: var(--text-label);
    font-family: var(--font-display);
    font-size: 10px;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-patch:hover { background: #3a3a3e; color: var(--text-bright); }
.btn-patch:active { transform: scale(0.97); }

/* ===== Keyboard Shortcuts Bar ===== */
.shortcuts-bar {
    padding: 8px 24px;
    background: var(--chassis-dark);
    border-top: 1px solid #222;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

.shortcut {
    font-size: 10px;
    color: var(--text-dim);
    font-family: var(--font-display);
}

.shortcut kbd {
    display: inline-block;
    padding: 1px 5px;
    background: #2a2a2e;
    border: 1px solid #444;
    border-radius: 3px;
    font-size: 10px;
    color: var(--text-label);
    margin: 0 2px;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: #111; }
::-webkit-scrollbar-thumb { background: #444; border-radius: 3px; }

/* ===== Utility ===== */
.hidden { display: none !important; }

/* ===== Init overlay ===== */
.init-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.init-box {
    background: var(--surface);
    border: 1px solid #444;
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    max-width: 400px;
}

.init-box h2 {
    font-family: var(--font-display);
    font-size: 18px;
    color: var(--boss-orange);
    margin-bottom: 8px;
}

.init-box p {
    color: var(--text-label);
    font-size: 13px;
    margin-bottom: 24px;
    line-height: 1.5;
}

.btn-start {
    padding: 12px 32px;
    background: var(--boss-orange);
    border: none;
    border-radius: 8px;
    color: #000;
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s;
    letter-spacing: 1px;
}

.btn-start:hover { background: #ff8a50; transform: scale(1.02); }
.btn-start:active { transform: scale(0.98); }

/* ===== Recording pulse animation ===== */
@keyframes pulse-red { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
@keyframes pulse-amber { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

.track[data-state="RECORDING"] .track-state-led { animation: pulse-red 0.8s ease-in-out infinite; }
.track[data-state="OVERDUBBING"] .track-state-led { animation: pulse-amber 0.8s ease-in-out infinite; }

/* ===== Responsive ===== */
@media (max-width: 1140px) {
    .rc505 { width: 100%; min-width: 800px; }
}