/* ─── Root ───────────────────────────────────────────────────────────────────── */
:root {
    --bg:       #0a0a0f;
    --surface:  #12131a;
    --surface2: #181a22;
    --border:   #1c1c3a;
    --cyan:     #00d4ff;
    --purple:   #9944ee;
    --pink:     #ff44aa;
    --green:    #00ff9f;
    --amber:    #ffaa00;
    --text:     #c8c8e0;
    --muted:    #4a4a6a;
    --fx1:      #88ff00;
    --fx2:      #e81068;
    --fx3:      #2266ff;
    --fx4:      #ff1493;
    --fx5:      #9944ee;
    --fx6:      #ff8800;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { background: var(--bg); color: var(--text); font-family: 'Courier New', monospace; }
body { min-height: 100vh; background: var(--bg); overflow-x: hidden; }

#bg-canvas {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    z-index: 0; pointer-events: none;
}
#app { position: relative; z-index: 1; }
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* ─── App ────────────────────────────────────────────────────────────────────── */
#app { max-width: 1120px; margin: 0 auto; padding: 0 12px 48px; }

/* ─── Header ─────────────────────────────────────────────────────────────────── */
.vibes-header { text-align: center; padding: 28px 0 18px; position: relative; }
.vibes-back {
    position: absolute; left: 0; top: 20px;
    text-decoration: none; transition: opacity 0.2s;
}
.vibes-back:hover { opacity: 0.8; }
.drift-logo { height: 28px; width: auto; display: block; }
.vibes-title {
    margin: 0;
    font-size: clamp(1.8rem, 6vw, 3rem); font-weight: 700;
    letter-spacing: 0.18em; text-transform: uppercase;
    background: linear-gradient(180deg, #00d4ff 0%, #9944ee 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 12px rgba(0,212,255,0.6)) drop-shadow(0 0 30px rgba(153,68,238,0.3));
}
.vibes-sub { font-size: 1.15rem; color: var(--text); letter-spacing: 0.18em; text-transform: lowercase; margin-top: 12px; font-style: italic; opacity: 0.88; }
.vibes-sub-tag { font-size: 0.95rem; margin-top: 4px; opacity: 0.65; letter-spacing: 0.20em; }
.vibes-marquee {
    display: block; margin: 0 auto 6px; color: var(--green);
    font-size: 1.05rem; letter-spacing: 0.28em; text-transform: lowercase;
    text-decoration: none; transition: opacity 0.2s;
    text-shadow: 0 0 12px rgba(0,255,159,0.35);
}
.vibes-marquee:hover { opacity: 0.8; }
.vibes-presents {
    font-size: 0.85rem; letter-spacing: 0.45em; color: var(--text);
    text-transform: uppercase; margin-bottom: 10px; font-style: italic;
    opacity: 0.6;
}
.vibes-visuals-link {
    display: inline-block;
    margin-top: 6px;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-dim);
    text-decoration: none;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 3px 10px;
    transition: all 0.2s;
}
.vibes-visuals-link:hover {
    color: var(--green);
    border-color: var(--green);
}

/* ─── Master bar ─────────────────────────────────────────────────────────────── */
.master-bar {
    display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
    padding: 12px 16px; background: rgba(18,19,26,0.85);
    border: 1px solid var(--border); border-radius: 8px; margin-bottom: 16px;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 24px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.04);
}
.master-label { font-size: 0.65rem; letter-spacing: 0.15em; color: var(--muted); white-space: nowrap; text-transform: uppercase; }
.master-vol-wrap { display: flex; align-items: center; gap: 8px; flex: 1; }
#master-vol { flex: 1; }
#master-vol-val { font-size: 0.72rem; color: var(--text); min-width: 32px; text-align: right; }
.master-bpm-wrap { display: flex; align-items: center; gap: 6px; }
#master-bpm {
    font-family: inherit; font-size: 0.75rem; font-weight: 700; color: var(--text);
    background: transparent; border: 1px solid var(--border); border-radius: 4px;
    width: 48px; padding: 4px 2px; text-align: center; outline: none;
}
#master-bpm:focus { border-color: var(--cyan); }
.master-tone-wrap { display: flex; align-items: center; gap: 6px; }
#master-bass, #master-treble { width: 60px; }
#master-bass-val, #master-treble-val { font-size: 0.65rem; color: var(--muted); min-width: 32px; text-align: right; }
#play-btn {
    padding: 10px 28px; font-family: inherit; font-size: 0.85rem;
    font-weight: 700; letter-spacing: 0.18em; background: transparent;
    border: 1px solid var(--green); color: var(--green); border-radius: 6px;
    cursor: pointer; text-shadow: 0 0 8px rgba(0,255,159,0.6);
    box-shadow: 0 0 6px rgba(0,255,159,0.2); transition: all 0.2s; white-space: nowrap;
}
#play-btn:hover  { background: rgba(0,255,159,0.08); box-shadow: 0 0 14px rgba(0,255,159,0.4); }
#play-btn.is-playing { border-color: var(--pink); color: var(--pink); text-shadow: 0 0 8px rgba(255,68,170,0.6); box-shadow: 0 0 10px rgba(255,68,170,0.3); }
#fade-btn {
    padding: 10px 14px; font-family: inherit; font-size: 0.7rem;
    font-weight: 700; letter-spacing: 0.14em; background: transparent;
    border: 1px solid var(--border); color: var(--muted); border-radius: 6px;
    cursor: pointer; transition: all 0.2s; white-space: nowrap;
}
#fade-btn:hover { color: var(--green); border-color: var(--green); }
#fade-btn.active { color: var(--green); border-color: var(--green); text-shadow: 0 0 8px rgba(0,255,159,0.4); }
#rec-btn {
    padding: 10px 20px; font-family: inherit; font-size: 0.85rem;
    font-weight: 700; letter-spacing: 0.18em; background: transparent;
    border: 1px solid #cc2222; color: #cc2222; border-radius: 6px;
    cursor: pointer; text-shadow: 0 0 8px rgba(204,34,34,0.4);
    box-shadow: 0 0 6px rgba(204,34,34,0.15); transition: all 0.2s; white-space: nowrap;
}
#rec-btn:hover { background: rgba(204,34,34,0.08); box-shadow: 0 0 14px rgba(204,34,34,0.3); }
#rec-btn.is-recording {
    border-color: #ff3333; color: #ff3333;
    text-shadow: 0 0 12px rgba(255,51,51,0.8);
    box-shadow: 0 0 14px rgba(255,51,51,0.4);
    animation: rec-pulse 1.2s ease-in-out infinite;
}
@keyframes rec-pulse {
    0%, 100% { box-shadow: 0 0 8px rgba(255,51,51,0.3); }
    50% { box-shadow: 0 0 20px rgba(255,51,51,0.6); }
}
#rec-timer {
    font-size: 0.72rem; color: #ff3333; letter-spacing: 0.08em;
    min-width: 48px; text-align: center; display: none;
}
#rec-timer.visible { display: inline; }

.master-export-wrap {
    display: flex; align-items: center; gap: 6px;
}
#export-dur {
    background: var(--surface2); color: var(--text);
    border: 1px solid var(--border); border-radius: 4px;
    padding: 3px 4px; font-size: 0.65rem; font-family: inherit;
    cursor: pointer; outline: none;
}
#export-dur:focus { border-color: var(--green); }
#export-btn {
    background: var(--surface2); color: var(--text);
    border: 1px solid var(--border); border-radius: 4px;
    padding: 4px 10px; font-size: 0.68rem; font-family: inherit;
    cursor: pointer; transition: all 0.2s;
    letter-spacing: 0.08em; font-weight: 700;
}
#export-btn:hover {
    border-color: var(--green); color: var(--green);
}
#export-btn.is-exporting {
    background: var(--green); color: #000;
    border-color: var(--green);
    box-shadow: 0 0 8px rgba(0,255,159,0.3);
    cursor: not-allowed;
}
#export-status {
    font-size: 0.72rem; color: var(--green); min-width: 80px;
}

/* ─── Scope ──────────────────────────────────────────────────────────────────── */
.scope-wrap {
    margin-bottom: 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    background: rgba(18,19,26,0.7);
    box-shadow: inset 0 0 20px rgba(0,0,0,0.4), 0 4px 24px rgba(0,0,0,0.3);
    backdrop-filter: blur(4px);
}
#scope {
    display: block;
    width: 100%;
    height: 180px;
}

/* ─── Presets ─────────────────────────────────────────────────────────────────── */
.presets-section { margin-bottom: 20px; }
.section-label { font-size: 0.60rem; letter-spacing: 0.20em; color: var(--muted); text-transform: uppercase; margin-bottom: 8px; }
.presets-row { display: flex; gap: 8px; flex-wrap: wrap; }
.preset-btn {
    font-family: inherit; font-size: 0.72rem; letter-spacing: 0.08em;
    padding: 6px 14px; background: transparent; border: 1px solid var(--border);
    color: var(--muted); border-radius: 20px; cursor: pointer; transition: all 0.18s; white-space: nowrap;
}
.preset-btn:hover { border-color: var(--purple); color: var(--text); }
.preset-btn.active { border-color: var(--purple); color: var(--purple); background: rgba(153,68,238,0.10); box-shadow: 0 0 8px rgba(153,68,238,0.15); }

/* Sessions */
.sessions-section { margin-bottom: 16px; }
.sessions-row { display: flex; gap: 10px; flex-wrap: wrap; }
.session-btn {
    font-family: inherit; font-size: 0.82rem; font-weight: 700;
    letter-spacing: 0.10em; padding: 10px 22px;
    background: transparent; border: 2px solid var(--cyan);
    color: var(--cyan); border-radius: 8px; cursor: pointer;
    transition: all 0.2s; white-space: nowrap;
    text-shadow: 0 0 6px rgba(0,212,255,0.3);
}
.session-btn:hover {
    background: rgba(0,212,255,0.08);
    box-shadow: 0 0 14px rgba(0,212,255,0.3);
}
.session-btn.active {
    background: var(--cyan); color: #000;
    box-shadow: 0 0 18px rgba(0,212,255,0.5);
    text-shadow: none;
}

.my-presets-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.my-preset-wrap { display: flex; gap: 2px; align-items: center; }
.my-preset-btn {
    font-family: inherit; font-size: 0.72rem; letter-spacing: 0.08em;
    padding: 6px 14px; background: transparent; border: 1px solid var(--border);
    color: var(--muted); border-radius: 20px; cursor: pointer; transition: all 0.18s; white-space: nowrap;
}
.my-preset-btn:hover { border-color: var(--cyan); color: var(--text); }
.my-preset-del {
    font-family: inherit; font-size: 0.65rem; width: 22px; height: 22px; padding: 0;
    background: transparent; border: 1px solid var(--border); color: var(--muted);
    border-radius: 50%; cursor: pointer; transition: all 0.18s; display: flex; align-items: center; justify-content: center;
}
.my-preset-del:hover { border-color: var(--pink); color: var(--pink); }
.save-preset-btn {
    font-family: inherit; font-size: 0.72rem; letter-spacing: 0.08em;
    padding: 6px 14px; background: transparent; border: 1px dashed var(--border);
    color: var(--muted); border-radius: 20px; cursor: pointer; transition: all 0.18s; white-space: nowrap;
    margin-top: 10px;
}
.save-preset-btn:hover { border-color: var(--green); color: var(--green); }

/* ─── Oscillator grid ─────────────────────────────────────────────────────────── */
.osc-section { margin-bottom: 24px; }
#osc-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}
@media (min-width: 520px)  { #osc-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1080px) { #osc-grid { grid-template-columns: repeat(6, 1fr); } }

/* ─── Oscillator card ────────────────────────────────────────────────────────── */
.osc-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 10px 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    transition: border-color 0.25s, box-shadow 0.25s;
}
.osc-card.is-on {
    border-color: rgba(0,212,255,0.5);
    box-shadow: 0 0 20px rgba(0,212,255,0.2), 0 0 40px rgba(0,212,255,0.08), inset 0 1px 0 rgba(255,255,255,0.06);
}

.osc-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.osc-num { font-size: 0.60rem; color: var(--muted); letter-spacing: 0.12em; }

/* Power button — circular like Swizard */
.osc-power {
    width: 28px; height: 28px;
    border-radius: 50%;
    border: 1.5px solid var(--muted);
    background: transparent;
    color: var(--muted);
    font-size: 0.85rem;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.18s;
    line-height: 1;
}
.osc-card.is-on .osc-power {
    border-color: var(--cyan);
    color: var(--cyan);
    box-shadow: 0 0 8px rgba(0,212,255,0.5), inset 0 0 4px rgba(0,212,255,0.1);
}

/* Frequency display */
.osc-freq-wrap { display: flex; align-items: center; gap: 4px; width: 100%; }
.freq-bump {
    background: transparent; border: 1px solid var(--border); color: var(--muted);
    width: 22px; height: 22px; border-radius: 3px; cursor: pointer;
    font-family: inherit; font-size: 0.85rem; font-weight: 700; line-height: 1;
    padding: 0; flex-shrink: 0;
}
.freq-bump:hover { color: var(--cyan); border-color: var(--cyan); }
.freq-bump:active { background: rgba(0,212,255,0.1); }
.freq-input {
    font-family: inherit; font-size: clamp(1rem, 3vw, 1.25rem); font-weight: 700;
    color: var(--text); background: transparent; border: none;
    border-bottom: 1px solid var(--border); width: 100%; padding: 2px 0;
    outline: none; -moz-appearance: textfield;
}
.freq-input::-webkit-outer-spin-button, .freq-input::-webkit-inner-spin-button { -webkit-appearance: none; }
.freq-input:focus { border-bottom-color: var(--cyan); }
.osc-card.is-on .freq-input { color: var(--cyan); }
.freq-hz { font-size: 0.58rem; color: var(--muted); white-space: nowrap; }

/* Vertical fader */
.fader-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    width: 100%;
}
.fader-wrap {
    width: 28px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.fader-track {
    position: absolute;
    width: 4px;
    height: 90px;
    background: var(--border);
    border-radius: 2px;
    pointer-events: none;
}
input.v-fader {
    -webkit-appearance: none;
    appearance: none;
    writing-mode: vertical-lr;
    direction: rtl;
    width: 28px;
    height: 90px;
    background: transparent;
    outline: none;
    cursor: pointer;
    position: relative;
    z-index: 1;
}
input.v-fader::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 22px; height: 10px;
    border-radius: 3px;
    background: var(--cyan);
    box-shadow: 0 0 6px rgba(0,212,255,0.5);
    cursor: grab;
}
input.v-fader::-moz-range-thumb {
    width: 22px; height: 10px;
    border-radius: 3px;
    background: var(--cyan);
    border: none;
    box-shadow: 0 0 6px rgba(0,212,255,0.5);
    cursor: grab;
}
input.v-fader::-webkit-slider-runnable-track { width: 4px; background: transparent; }
input.v-fader::-moz-range-track { width: 4px; background: transparent; }

/* Value badge */
.vol-badge {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--cyan);
    background: rgba(0,212,255,0.10);
    border: 1px solid rgba(0,212,255,0.25);
    border-radius: 4px;
    padding: 2px 8px;
    min-width: 38px;
    text-align: center;
}
.osc-card:not(.is-on) .vol-badge { color: var(--muted); background: transparent; border-color: var(--border); }

/* Binaural input */
.osc-binaural-wrap { display: flex; align-items: center; gap: 4px; width: 100%; }
.binaural-label { font-size: 0.55rem; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; }
.binaural-input {
    font-family: inherit; font-size: 0.85rem; font-weight: 700;
    color: var(--text); background: transparent; border: none;
    border-bottom: 1px solid var(--border); flex: 1; min-width: 0; padding: 2px 0;
    outline: none; -moz-appearance: textfield; text-align: center;
}
.binaural-input::-webkit-outer-spin-button, .binaural-input::-webkit-inner-spin-button { -webkit-appearance: none; }
.binaural-input:focus { border-bottom-color: var(--purple); }
.osc-card.is-on .binaural-input { color: var(--purple); }
.binaural-hz { font-size: 0.58rem; color: var(--muted); white-space: nowrap; }
.mono-btn {
    font-family: inherit; font-size: 0.55rem; font-weight: 700;
    width: 20px; height: 20px; min-width: 20px; padding: 0;
    background: transparent; border: 1px solid var(--border);
    color: var(--muted); border-radius: 3px; cursor: pointer;
    transition: all 0.15s; display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.mono-btn:hover { border-color: var(--purple); color: var(--text); }
.mono-btn.active {
    background: var(--purple); color: #fff;
    border-color: var(--purple); box-shadow: 0 0 6px rgba(153,68,238,0.4);
}

/* Waveform buttons */
.osc-waves { display: flex; gap: 3px; width: 100%; }
.wave-btn {
    font-family: inherit; font-size: 0.55rem; padding: 3px 0; flex: 1;
    background: transparent; border: 1px solid var(--border); color: var(--muted);
    border-radius: 3px; cursor: pointer; text-align: center; transition: all 0.15s;
}
.wave-btn:hover { border-color: var(--purple); color: var(--text); }
.wave-btn.active { border-color: var(--purple); background: rgba(153,68,238,0.18); color: var(--purple); }

/* ─── Background Sounds ──────────────────────────────────────────────────────── */
.bg-section { margin-bottom: 20px; }
#bg-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
@media (min-width: 520px)  { #bg-grid { grid-template-columns: repeat(5, 1fr); } }

.bg-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 8px 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transition: border-color 0.25s, box-shadow 0.25s;
}
.bg-card.is-on {
    border-color: rgba(0,212,255,0.5);
    box-shadow: 0 0 16px rgba(0,212,255,0.2), 0 0 32px rgba(0,212,255,0.08), inset 0 1px 0 rgba(255,255,255,0.06);
}
.bg-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.bg-name { font-size: 0.60rem; color: var(--muted); letter-spacing: 0.12em; text-transform: uppercase; }
.bg-power {
    width: 24px; height: 24px;
    border-radius: 50%;
    border: 1.5px solid var(--muted);
    background: transparent;
    color: var(--muted);
    font-size: 0.75rem;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.18s;
    line-height: 1;
}
.bg-card.is-on .bg-power {
    border-color: var(--cyan);
    color: var(--cyan);
    box-shadow: 0 0 8px rgba(0,212,255,0.5), inset 0 0 4px rgba(0,212,255,0.1);
}
.bg-card .fader-wrap { width: 24px; height: 70px; }
.bg-card .fader-track { width: 4px; height: 70px; }
.bg-card input.v-fader { width: 24px; height: 70px; }
.bg-card input.v-fader::-webkit-slider-thumb { width: 18px; height: 8px; }
.bg-card input.v-fader::-moz-range-thumb { width: 18px; height: 8px; }

/* ─── LFOs ───────────────────────────────────────────────────────────────────── */
.lfo-section { margin-bottom: 24px; }
#lfo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.lfo-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.lfo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.lfo-name { font-size: 0.7rem; letter-spacing: 0.12em; color: var(--muted); text-transform: uppercase; }
.lfo-power {
    width: 26px; height: 26px; border-radius: 50%;
    border: 1.5px solid var(--muted); background: transparent; color: var(--muted);
    font-size: 0.8rem; cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: all 0.18s;
}
.lfo-power.active {
    border-color: var(--purple); color: var(--purple);
    box-shadow: 0 0 8px rgba(153,68,238,0.5);
}
.lfo-param-row {
    display: flex; align-items: center; gap: 8px;
}
.lfo-label { font-size: 0.6rem; color: var(--muted); letter-spacing: 0.1em; min-width: 34px; }
.lfo-rate-slider, .lfo-depth-slider {
    flex: 1; height: 3px; accent-color: var(--purple); cursor: pointer;
}
.lfo-rate-val, .lfo-depth-val {
    font-size: 0.62rem; color: var(--purple); min-width: 72px; text-align: right; font-family: inherit;
}
.lfo-waves {
    display: flex; gap: 6px;
}
.lfo-wave-btn {
    flex: 1;
    background: transparent; border: 1px solid var(--border); color: var(--muted);
    border-radius: 4px; cursor: pointer; font-family: 'Courier New', monospace;
    font-size: 0.65rem; padding: 3px 4px; letter-spacing: 0.04em;
    transition: all 0.15s;
}
.lfo-wave-btn:hover { border-color: var(--purple); color: var(--text); }
.lfo-wave-btn.active { border-color: var(--purple); color: var(--purple); background: rgba(153,68,238,0.12); }

/* LFO visualiser canvas */
.lfo-vis {
    width: 100%; height: 44px;
    border-radius: 5px;
    background: var(--bg);
    display: block;
}

/* LFO assign buttons on oscillator cards */
.osc-lfo-row { display: flex; gap: 6px; width: 100%; }
.osc-lfo-btn {
    flex: 1;
    background: transparent; border: 1px solid var(--border); color: var(--muted);
    border-radius: 4px; cursor: pointer; font-family: inherit; font-size: 0.58rem;
    padding: 3px 0; letter-spacing: 0.08em; text-transform: uppercase;
    transition: all 0.15s;
}
.osc-lfo-btn:hover { border-color: var(--purple); color: var(--text); }
.osc-lfo-btn.active { border-color: var(--purple); color: var(--purple); background: rgba(153,68,238,0.14); }

/* LFO assign buttons on effect cards */
.fx-lfo-row { display: flex; gap: 6px; width: 100%; margin-top: 2px; }
.fx-lfo-btn {
    flex: 1;
    background: transparent; border: 1px solid var(--border); color: var(--muted);
    border-radius: 4px; cursor: pointer; font-family: inherit; font-size: 0.58rem;
    padding: 3px 0; letter-spacing: 0.08em; text-transform: uppercase;
    transition: all 0.15s;
}
.fx-lfo-btn:hover { border-color: var(--purple); color: var(--text); }
.fx-lfo-btn.active { border-color: var(--purple); color: var(--purple); background: rgba(153,68,238,0.14); }
.fx-card:not(.is-on) .fx-lfo-row { opacity: 0.35; pointer-events: none; }

/* ─── Effects ────────────────────────────────────────────────────────────────── */
.effects-section { margin-bottom: 24px; }
#effects-area { display: flex; flex-direction: column; gap: 8px; }

/* Category */
.fx-category {
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--surface);
}
.fx-cat-header {
    font-family: inherit; font-size: 0.80rem; letter-spacing: 0.16em;
    text-transform: uppercase; color: var(--muted);
    background: var(--surface2); border: none;
    width: 100%; padding: 10px 14px;
    display: flex; justify-content: space-between; align-items: center;
    cursor: pointer; transition: color 0.15s;
}
.fx-cat-header:hover { color: var(--text); }
.fx-cat-arrow { font-size: 0.55rem; transition: transform 0.2s; }
.fx-category.collapsed .fx-cat-arrow { transform: rotate(-90deg); }
.fx-cat-body {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 10px;
    padding: 10px;
    transition: max-height 0.3s;
    align-items: start;
}
.fx-category.collapsed .fx-cat-body { display: none; }

/* Effect card — same shape as osc-card */
.fx-card {
    background: var(--surface);
    border: 2px solid var(--fx-color);
    border-radius: 10px;
    padding: 16px 14px 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    transition: box-shadow 0.25s;
}
.fx-card.is-on {
    box-shadow: 0 0 20px color-mix(in srgb, var(--fx-color) 20%, transparent), 0 0 40px color-mix(in srgb, var(--fx-color) 8%, transparent), inset 0 1px 0 rgba(255,255,255,0.06);
}
.fx-card-header {
    width: 100%;
    display: flex; justify-content: space-between; align-items: center;
}
.fx-card-name {
    font-size: 0.95rem; font-weight: 700;
    letter-spacing: 0.08em; color: var(--fx-color);
}

/* Effect power — circular, same as osc-power */
.fx-toggle {
    width: 32px; height: 32px;
    border-radius: 50%;
    border: 2px solid var(--fx-color);
    background: transparent;
    color: var(--muted);
    font-size: 0.85rem;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.18s;
    line-height: 1;
    padding: 0;
}
.fx-card.is-on .fx-toggle {
    color: var(--fx-color);
    box-shadow: 0 0 8px color-mix(in srgb, var(--fx-color) 50%, transparent), inset 0 0 4px color-mix(in srgb, var(--fx-color) 10%, transparent);
}

/* Param faders — vertical, side by side */
.fx-card-params {
    display: flex; gap: 16px; justify-content: center; width: 100%; flex-wrap: wrap;
}

/* Toggle button row for sequencer steps */
.fx-toggle-row {
    display: flex; gap: 4px; justify-content: center; width: 100%; margin-bottom: 4px;
}
.fx-toggle-btn {
    font-family: inherit; font-size: 0.60rem; padding: 4px 6px;
    background: transparent; border: 1px solid var(--border); color: var(--muted);
    border-radius: 3px; cursor: pointer; text-align: center; transition: all 0.15s;
    min-width: 28px;
}
.fx-toggle-btn:hover { border-color: var(--fx-color); color: var(--text); }
.fx-toggle-btn.is-on {
    border-color: var(--fx-color); background: color-mix(in srgb, var(--fx-color) 18%, transparent);
    color: var(--fx-color); box-shadow: 0 0 6px color-mix(in srgb, var(--fx-color) 30%, transparent);
}
.fx-card-params .fader-wrap { height: 120px; }
.fx-card-params .fader-track { height: 120px; }
.fx-card-params input.v-fader { height: 120px; }
.fx-card:not(.is-on) .fx-card-params { opacity: 0.35; pointer-events: none; }

.fx-param-col {
    display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.fx-param-label {
    font-size: 0.75rem; color: var(--muted); letter-spacing: 0.08em;
    text-transform: uppercase; white-space: nowrap;
}
.fx-param-badge {
    font-size: 0.88rem; font-weight: 700;
    color: var(--fx-color);
    background: color-mix(in srgb, var(--fx-color) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--fx-color) 25%, transparent);
    border-radius: 4px;
    padding: 2px 6px;
    min-width: 34px;
    text-align: center;
}
.fx-card:not(.is-on) .fx-param-badge { color: var(--muted); background: transparent; border-color: var(--border); }

/* Category-colored fader thumb */
input.v-fader.fx-param-slider::-webkit-slider-thumb {
    background: var(--fx-color);
    box-shadow: 0 0 6px color-mix(in srgb, var(--fx-color) 50%, transparent);
}
input.v-fader.fx-param-slider::-moz-range-thumb {
    background: var(--fx-color);
    box-shadow: 0 0 6px color-mix(in srgb, var(--fx-color) 50%, transparent);
}

/* ─── Category colors ────────────────────────────────────────────────────────── */
.fx-category:nth-child(1) { --fx-color: var(--fx1); }
.fx-category:nth-child(2) { --fx-color: var(--fx2); }
.fx-category:nth-child(3) { --fx-color: var(--fx3); }
.fx-category:nth-child(4) { --fx-color: var(--fx4); }
.fx-category:nth-child(5) { --fx-color: var(--fx5); }
.fx-category:nth-child(6) { --fx-color: var(--fx6); }

.fx-cat-header { color: var(--fx-color, var(--muted)); }
.fx-cat-header:hover { color: var(--text); }

/* ─── Horizontal range (master vol + secondary params) ───────────────────────── */
input[type=range]:not(.v-fader) {
    -webkit-appearance: none; height: 3px;
    background: var(--border); border-radius: 2px; outline: none; cursor: pointer;
}
input[type=range]:not(.v-fader)::-webkit-slider-thumb {
    -webkit-appearance: none; width: 12px; height: 12px; border-radius: 50%;
    background: var(--cyan); box-shadow: 0 0 6px rgba(0,212,255,0.5); cursor: pointer;
}
input[type=range]:not(.v-fader)::-moz-range-thumb {
    width: 12px; height: 12px; border-radius: 50%;
    background: var(--cyan); border: none; box-shadow: 0 0 6px rgba(0,212,255,0.5); cursor: pointer;
}

/* ─── Brainwave Entrainment ──────────────────────────────────────────────────── */
.bw-section { margin-top: 16px; }
#bw-grid { width: 100%; }

.bw-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
    position: relative;
    overflow: hidden;
    min-height: 230px;
}
.bw-card.is-on {
    border-color: var(--purple);
    box-shadow: 0 0 16px rgba(153,68,238,0.15);
}

/* Epilepsy warning overlay */
.bw-overlay {
    position: absolute; inset: 0; z-index: 10;
    background: rgba(8,8,14,0.96);
    backdrop-filter: blur(6px);
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 6px; padding: 12px 16px;
    text-align: center;
    transition: opacity 0.4s, visibility 0.4s;
}
.bw-card.bw-enabled .bw-overlay {
    opacity: 0; visibility: hidden; pointer-events: none;
}
.bw-overlay-icon {
    font-size: 2rem; color: #ffaa44;
}
.bw-overlay-title {
    font-size: 0.85rem; font-weight: 700; color: #ffaa44;
    letter-spacing: 0.10em; text-transform: uppercase;
}
.bw-overlay-body {
    font-size: 0.65rem; color: var(--green); line-height: 1.4;
    max-width: 460px;
}
.bw-overlay-inst {
    color: var(--green); font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.06em;
}
.bw-enable-btn {
    margin-top: 6px;
    background: var(--green); color: #000;
    border: 2px solid var(--green); border-radius: 8px;
    padding: 10px 24px; font-size: 0.82rem; font-family: inherit;
    cursor: pointer; transition: all 0.2s;
    letter-spacing: 0.08em; font-weight: 700;
    text-transform: uppercase;
    box-shadow: 0 0 16px rgba(0,255,159,0.35);
    white-space: nowrap;
}
.bw-enable-btn:hover {
    background: #000; color: var(--green);
    box-shadow: 0 0 28px rgba(0,255,159,0.55);
    transform: translateY(-1px);
}

/* Top row: title, power, timer, auto, freq inputs, bands, waves */
.bw-top {
    display: flex; align-items: center; gap: 10px;
    flex-wrap: wrap;
}
.bw-title-row {
    display: flex; align-items: center; gap: 8px;
    margin-right: 4px;
}
.bw-name {
    font-size: 0.72rem; font-weight: 700;
    color: var(--text); letter-spacing: 0.10em; text-transform: uppercase;
    white-space: nowrap;
}
.bw-power {
    width: 28px; height: 28px; border-radius: 6px;
    background: var(--surface2); color: var(--muted);
    border: 1px solid var(--border); font-size: 0.85rem;
    cursor: pointer; transition: all 0.2s; display: flex;
    align-items: center; justify-content: center; padding: 0;
}
.bw-power:hover { color: var(--text); border-color: var(--purple); }
.bw-card.is-on .bw-power {
    background: var(--purple); color: #fff;
    border-color: var(--purple); box-shadow: 0 0 8px rgba(153,68,238,0.5);
}

.bw-light-btn {
    width: 28px; height: 28px; border-radius: 6px;
    background: var(--surface2); color: var(--muted);
    border: 1px solid var(--border); font-size: 0.85rem;
    cursor: pointer; transition: all 0.2s; display: flex;
    align-items: center; justify-content: center; padding: 0;
}
.bw-light-btn:hover { color: var(--text); border-color: #ffaa44; }
.bw-light-btn.active {
    background: #ffaa44; color: #000;
    border-color: #ffaa44; box-shadow: 0 0 8px rgba(255,170,68,0.5);
}

.bw-timer-row {
    display: flex; align-items: center; gap: 4px;
}
.bw-select {
    background: var(--surface2); color: var(--text);
    border: 1px solid var(--border); border-radius: 4px;
    padding: 2px 4px; font-size: 0.65rem; font-family: inherit;
    cursor: pointer; outline: none;
}
.bw-select:focus { border-color: var(--purple); }
.bw-auto-btn {
    background: var(--surface2); color: var(--muted);
    border: 1px solid var(--border); border-radius: 4px;
    padding: 2px 7px; font-size: 0.60rem; font-family: inherit;
    cursor: pointer; transition: all 0.15s;
    letter-spacing: 0.06em; font-weight: 700;
}
.bw-auto-btn:hover { color: var(--text); border-color: var(--green); }
.bw-auto-btn.active {
    background: var(--green); color: #000;
    border-color: var(--green); box-shadow: 0 0 6px rgba(0,255,159,0.4);
}
.bw-dir-btn {
    background: var(--surface2); color: var(--muted);
    border: 1px solid var(--border); border-radius: 4px;
    padding: 2px 6px; font-size: 0.75rem; font-family: inherit;
    cursor: pointer; transition: all 0.15s; line-height: 1;
}
.bw-dir-btn:hover { color: var(--text); border-color: var(--purple); }
.bw-sync-btn {
    background: var(--surface2); color: var(--muted);
    border: 1px solid var(--border); border-radius: 4px;
    padding: 2px 7px; font-size: 0.55rem; font-family: inherit;
    cursor: pointer; transition: all 0.15s;
    letter-spacing: 0.06em; font-weight: 700;
}
.bw-sync-btn:hover { color: var(--text); border-color: var(--cyan); }
.bw-sync-btn.active {
    background: var(--cyan); color: #000;
    border-color: var(--cyan); box-shadow: 0 0 6px rgba(0,212,255,0.4);
}

.bw-freq-wrap {
    display: flex; align-items: center; gap: 3px;
}
.bw-label {
    font-size: 0.60rem; color: var(--muted);
    letter-spacing: 0.06em; text-transform: uppercase;
}
.bw-input {
    width: 48px; background: var(--surface2); color: var(--text);
    border: 1px solid var(--border); border-radius: 4px;
    padding: 2px 4px; font-size: 0.72rem; font-family: inherit;
    text-align: right;
}
.bw-input:focus { outline: none; border-color: var(--purple); }
.bw-hz { font-size: 0.60rem; color: var(--muted); }

.bw-band-row {
    display: flex; align-items: center; gap: 8px;
}
.bw-bands {
    display: flex; gap: 3px;
}
.bw-band {
    background: var(--surface2); color: var(--muted);
    border: 1px solid var(--border); border-radius: 4px;
    padding: 2px 7px; font-size: 0.72rem; font-family: inherit;
    cursor: pointer; transition: all 0.15s; line-height: 1;
}
.bw-band:hover { color: var(--text); border-color: var(--cyan); }
.bw-band.active {
    background: var(--cyan); color: #000;
    border-color: var(--cyan); box-shadow: 0 0 8px rgba(0,212,255,0.4);
}
.bw-state {
    font-size: 0.60rem; color: var(--cyan); letter-spacing: 0.06em;
    white-space: nowrap; opacity: 0.8;
}

.bw-waves {
    display: flex; gap: 3px;
}
.bw-wave-btn {
    background: var(--surface2); color: var(--muted);
    border: 1px solid var(--border); border-radius: 4px;
    padding: 2px 8px; font-size: 0.65rem; font-family: inherit;
    cursor: pointer; transition: all 0.15s;
    text-transform: uppercase; letter-spacing: 0.04em; line-height: 1;
}
.bw-wave-btn:hover { color: var(--text); border-color: var(--cyan); }
.bw-wave-btn.active {
    background: var(--cyan); color: #000;
    border-color: var(--cyan); box-shadow: 0 0 6px rgba(0,212,255,0.4);
}

/* Bottom row: vol slider, colors, intensity, countdown, warning */
.bw-bottom {
    display: flex; align-items: center; gap: 12px;
    margin-top: 8px; flex-wrap: wrap;
    padding-top: 8px; border-top: 1px solid var(--border);
}

.bw-hvol-wrap {
    display: flex; align-items: center; gap: 6px; flex: 1; min-width: 120px;
}
.bw-hvol {
    flex: 1;
    -webkit-appearance: none; height: 3px;
    background: var(--border); border-radius: 2px; outline: none; cursor: pointer;
}
.bw-hvol::-webkit-slider-thumb {
    -webkit-appearance: none; width: 12px; height: 12px; border-radius: 50%;
    background: var(--purple); box-shadow: 0 0 6px rgba(153,68,238,0.5); cursor: pointer;
}
.bw-hvol::-moz-range-thumb {
    width: 12px; height: 12px; border-radius: 50%;
    background: var(--purple); border: none;
    box-shadow: 0 0 6px rgba(153,68,238,0.5); cursor: pointer;
}
.bw-hvol-val {
    font-size: 0.72rem; color: var(--muted); min-width: 32px; text-align: right;
}

.bw-light-wrap {
    display: flex; align-items: center; gap: 6px;
}
.bw-colors {
    display: flex; gap: 3px;
}
.bw-color-btn {
    width: 22px; height: 22px; border-radius: 50%;
    background: transparent; border: 2px solid;
    font-size: 0.55rem; font-weight: 700; font-family: inherit;
    cursor: pointer; transition: all 0.15s;
    display: flex; align-items: center; justify-content: center; padding: 0;
}
.bw-color-btn.active {
    box-shadow: 0 0 6px currentColor;
    transform: scale(1.12);
}

.bw-intensity {
    width: 72px;
    -webkit-appearance: none; height: 3px;
    background: var(--border); border-radius: 2px; outline: none; cursor: pointer;
}
.bw-intensity::-webkit-slider-thumb {
    -webkit-appearance: none; width: 10px; height: 10px; border-radius: 50%;
    background: var(--purple); box-shadow: 0 0 4px rgba(153,68,238,0.5); cursor: pointer;
}
.bw-intensity::-moz-range-thumb {
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--purple); border: none;
    box-shadow: 0 0 4px rgba(153,68,238,0.5); cursor: pointer;
}

.bw-countdown {
    font-size: 0.72rem; color: var(--green); font-weight: 700;
    white-space: nowrap; min-width: 50px;
}
.bw-warning {
    font-size: 0.58rem; color: #ffaa44; opacity: 0.75;
    white-space: nowrap;
}

/* ─── Strobe layer ───────────────────────────────────────────────────────────── */
#strobe-layer {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none; z-index: 9999;
    transition: background 0.03s linear;
}

/* ─── Harmonics ──────────────────────────────────────────────────────────────── */
.harmonics-row { padding: 4px 0 0; }
.harmonics-header { display: flex; gap: 4px; align-items: stretch; }
.harmonics-toggle {
    background: transparent; border: 1px solid var(--border); color: var(--muted);
    font-size: 0.58rem; padding: 2px 8px; border-radius: 3px; cursor: pointer;
    letter-spacing: 0.08em; flex: 1;
}
.harmonics-toggle.active { color: var(--green); border-color: var(--green); }
.harmonics-reset {
    background: transparent; border: 1px solid var(--border); color: var(--muted);
    font-size: 0.7rem; line-height: 1; width: 22px; padding: 0; border-radius: 3px; cursor: pointer;
}
.harmonics-reset:hover { color: var(--green); border-color: var(--green); }
.harmonics-sliders {
    display: flex; gap: 4px; justify-content: center; padding: 6px 0 2px;
    align-items: flex-end;
}
.harm-col { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.harm-label { font-size: 0.5rem; color: var(--muted); }
.harm-slider {
    writing-mode: vertical-lr; direction: rtl;
    width: 16px; height: 50px;
    accent-color: var(--green);
    cursor: pointer;
}

/* ─── Breath Pacer ───────────────────────────────────────────────────────────── */
.breath-section { padding: 0 12px 12px; }
.breath-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 8px; padding: 10px 12px; text-align: center;
    display: flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: center;
}
.breath-controls {
    display: flex; gap: 6px; flex-wrap: wrap;
}
.breath-param { display: flex; align-items: center; gap: 3px; }
.breath-label { font-size: 0.58rem; color: var(--muted); }
.breath-input {
    width: 34px; background: var(--surface2); border: 1px solid var(--border);
    color: var(--text); font-size: 0.68rem; text-align: center; border-radius: 4px;
    padding: 2px 1px; font-family: inherit;
}
.breath-unit { font-size: 0.52rem; color: var(--muted); }
.breath-presets { display: flex; gap: 4px; }
.breath-preset {
    background: transparent; border: 1px solid var(--border); color: var(--muted);
    font-size: 0.55rem; padding: 2px 8px; border-radius: 3px; cursor: pointer;
    font-family: inherit; letter-spacing: 0.04em;
}
.breath-preset:hover, .breath-preset.active { color: var(--cyan); border-color: var(--cyan); }
.breath-vis { display: flex; }
.breath-ring {
    width: 52px; height: 52px; border-radius: 50%;
    border: 2px solid var(--cyan); display: flex; align-items: center; justify-content: center;
    transition: transform 0.3s ease, border-color 0.3s;
    opacity: 0.5; flex-shrink: 0;
}
.breath-ring.breathing { opacity: 1; border-color: var(--green); }
.breath-phase { font-size: 0.55rem; color: var(--cyan); letter-spacing: 0.06em; }
.breath-start-btn {
    background: transparent; border: 1px solid var(--cyan); color: var(--cyan);
    padding: 4px 18px; border-radius: 4px; cursor: pointer; font-family: inherit;
    font-size: 0.65rem; letter-spacing: 0.10em; flex-shrink: 0;
}
.breath-start-btn:hover { background: rgba(0,212,255,0.1); }
.breath-start-btn.active { background: var(--cyan); color: #000; }

/* ─── Crossfade Timer ────────────────────────────────────────────────────────── */
.crossfade-section { padding: 0 12px 12px; }
.crossfade-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 8px; padding: 8px 12px;
    display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: center;
}
.cf-row { display: flex; align-items: center; gap: 6px; }
.cf-col { display: flex; align-items: center; gap: 3px; }
.cf-label { font-size: 0.55rem; color: var(--muted); letter-spacing: 0.04em; }
.cf-arrow { color: var(--cyan); font-size: 0.9rem; }
.cf-select {
    background: var(--surface2); border: 1px solid var(--border); color: var(--text);
    font-size: 0.62rem; padding: 3px 6px; border-radius: 4px; font-family: inherit;
}
.cf-dur-row { display: flex; align-items: center; gap: 6px; }
.cf-progress-wrap {
    position: relative; height: 14px; background: var(--surface2);
    border-radius: 3px; overflow: hidden; flex: 1; min-width: 80px;
}
.cf-progress-bar {
    position: absolute; top: 0; left: 0; height: 100%;
    background: linear-gradient(90deg, var(--cyan), var(--purple));
    transition: width 0.5s ease;
}
.cf-progress-text {
    position: absolute; top: 0; left: 0; right: 0; height: 100%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.5rem; color: var(--text); letter-spacing: 0.04em; z-index: 1;
}
.cf-start-btn {
    background: transparent; border: 1px solid var(--cyan); color: var(--cyan);
    padding: 3px 16px; border-radius: 4px; cursor: pointer; font-family: inherit;
    font-size: 0.62rem; letter-spacing: 0.10em; flex-shrink: 0;
}
.cf-start-btn:hover { background: rgba(0,212,255,0.1); }
.cf-start-btn.active { background: var(--cyan); color: #000; }

/* ─── Sequencer ──────────────────────────────────────────────────────────────── */
.sequencer-section { padding: 0 12px 12px; }
.sequencer-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 8px; padding: 10px 12px;
}
.seq-build-row {
    display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-bottom: 8px;
}
.seq-min-input {
    width: 44px; background: var(--surface2); border: 1px solid var(--border);
    color: var(--text); font-family: inherit; font-size: 0.72rem;
    padding: 4px 6px; border-radius: 4px; text-align: center;
}
.seq-min-label { font-size: 0.6rem; color: var(--muted); }
.seq-add-btn {
    background: transparent; border: 1px solid var(--green); color: var(--green);
    padding: 3px 12px; border-radius: 4px; cursor: pointer; font-family: inherit;
    font-size: 0.62rem; letter-spacing: 0.08em;
}
.seq-add-btn:hover { background: rgba(57,255,106,0.1); }
.seq-queue {
    display: flex; flex-direction: column; gap: 4px;
    max-height: 120px; overflow-y: auto;
    margin-bottom: 8px; padding-right: 2px;
}
.seq-queue-item {
    display: flex; align-items: center; justify-content: space-between;
    background: var(--surface2); border: 1px solid var(--border);
    border-radius: 4px; padding: 4px 8px; font-size: 0.7rem;
}
.seq-queue-item.active {
    border-color: var(--green); background: rgba(57,255,106,0.08);
}
.seq-queue-item .seq-item-name { color: var(--text); }
.seq-queue-item .seq-item-dur { color: var(--muted); font-size: 0.6rem; }
.seq-queue-item .seq-item-del {
    background: none; border: none; color: var(--muted); cursor: pointer;
    font-size: 0.8rem; padding: 0 2px;
}
.seq-queue-item .seq-item-del:hover { color: #ff4444; }
.seq-options-row {
    display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
    margin-bottom: 8px; padding-top: 6px; border-top: 1px solid var(--border);
}
.seq-loop-label, .seq-record-label { font-size: 0.65rem; color: var(--muted); display: flex; align-items: center; gap: 4px; cursor: pointer; }
.seq-loop-label input, .seq-record-label input { accent-color: var(--green); }
.seq-cf-label { font-size: 0.6rem; color: var(--muted); }
.seq-cf-select { font-size: 0.65rem; padding: 3px 6px; }
.seq-status {
    font-size: 0.6rem; color: var(--muted); text-align: center;
    margin-bottom: 8px; min-height: 14px;
}
.seq-actions { display: flex; gap: 8px; justify-content: center; }
.seq-start-btn {
    background: transparent; border: 1px solid var(--green); color: var(--green);
    padding: 4px 18px; border-radius: 4px; cursor: pointer; font-family: inherit;
    font-size: 0.62rem; letter-spacing: 0.10em;
}
.seq-start-btn:hover { background: rgba(57,255,106,0.1); }
.seq-stop-btn {
    background: transparent; border: 1px solid #ff4444; color: #ff4444;
    padding: 4px 18px; border-radius: 4px; cursor: pointer; font-family: inherit;
    font-size: 0.62rem; letter-spacing: 0.10em;
}
.seq-stop-btn:hover { background: rgba(255,68,68,0.1); }

/* ─── Footer ─────────────────────────────────────────────────────────────────── */
.vibes-footer { text-align: center; padding: 16px 0 0; font-size: 0.65rem; color: var(--muted); letter-spacing: 0.10em; }
.vibes-footer a { color: var(--muted); text-decoration: none; }
.vibes-footer a:hover { color: var(--cyan); }

/* ─── Pad Mode — MIDI-style colored launch pads ──────────────────────────── */
.pads-section { padding: 6px 12px 10px; }
.pads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(78px, 1fr));
    gap: 6px;
}
.pad-btn {
    --pad-color: #888;
    aspect-ratio: 1 / 1;
    background: linear-gradient(160deg, color-mix(in srgb, var(--pad-color) 90%, white 0%), color-mix(in srgb, var(--pad-color) 75%, black 15%));
    border: 1px solid color-mix(in srgb, var(--pad-color) 70%, black 0%);
    border-radius: 8px;
    color: rgba(0,0,0,0.85);
    font-family: inherit; font-weight: 700;
    font-size: 0.6rem; letter-spacing: 0.04em;
    cursor: pointer; padding: 4px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.18);
    transition: transform 0.06s ease, box-shadow 0.12s ease;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    text-align: center; line-height: 1.1;
    position: relative; overflow: hidden;
}
.pad-btn:hover {
    box-shadow: 0 0 14px var(--pad-color), 0 2px 6px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.25);
}
.pad-btn:active { transform: scale(0.94); }
.pad-btn.active {
    box-shadow: 0 0 18px var(--pad-color), 0 0 28px color-mix(in srgb, var(--pad-color) 70%, transparent), inset 0 0 0 2px rgba(255,255,255,0.65);
    border-color: rgba(255,255,255,0.7);
}
.pad-btn .pad-name { word-break: break-word; }
.pad-btn .pad-tag {
    position: absolute; top: 4px; left: 6px;
    font-size: 0.45rem; letter-spacing: 0.12em;
    background: rgba(0,0,0,0.4); color: rgba(255,255,255,0.85);
    padding: 1px 4px; border-radius: 2px;
}
.pad-btn.pad-session { border-style: dashed; }

/* ─── DJ Mixer panel (M to toggle) ────────────────────────────────────────── */
.mixer-panel {
    position: fixed; top: 0; right: 0; bottom: 0;
    width: 480px; max-width: 92vw;
    background: var(--surface, #15171c);
    border-left: 1px solid var(--border);
    z-index: 100; display: flex; flex-direction: column;
    box-shadow: -4px 0 32px rgba(0,0,0,0.6);
}
.mixer-panel[hidden] { display: none; }
.mixer-header {
    display: flex; align-items: center; gap: 12px;
    padding: 14px 18px; border-bottom: 1px solid var(--border);
}
.mixer-title {
    font-weight: 700; letter-spacing: 0.20em; font-size: 0.8rem;
    color: var(--green); text-shadow: 0 0 8px rgba(0,255,159,0.4);
}
.mixer-hint { flex: 1; text-align: right; font-size: 0.55rem; color: var(--muted); letter-spacing: 0.08em; }
.mixer-transport {
    background: transparent; border: 1px solid var(--border); color: var(--muted);
    padding: 5px 12px; font-family: inherit; font-size: 0.65rem; font-weight: 700;
    letter-spacing: 0.14em; border-radius: 4px; cursor: pointer; white-space: nowrap;
    transition: all 0.18s;
}
.mixer-transport:hover { color: var(--green); border-color: var(--green); }
.mixer-play { color: var(--green); border-color: var(--green); }
.mixer-play.is-playing { color: var(--pink); border-color: var(--pink); text-shadow: 0 0 6px rgba(255,68,170,0.5); }
.mixer-fade.active { color: var(--green); border-color: var(--green); text-shadow: 0 0 6px rgba(0,255,159,0.4); }
.mixer-close {
    background: none; border: 1px solid var(--border); color: var(--muted);
    width: 28px; height: 28px; font-size: 1.1rem; line-height: 1; cursor: pointer;
    border-radius: 4px;
}
.mixer-close:hover { color: var(--green); border-color: var(--green); }
.mixer-body {
    flex: 1; padding: 14px 18px; display: flex; flex-direction: column; gap: 14px;
    overflow-y: auto;
}
.mixer-pads {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
    gap: 4px;
    flex-shrink: 0;
}
.mixer-strips {
    display: flex; gap: 10px; align-items: stretch;
    overflow-x: auto; flex-shrink: 0;
}
.mixer-seq { flex-shrink: 0; }
.mixer-seq .section-label { margin: 4px 0 6px; }
.mixer-seq .sequencer-card { padding: 0; background: transparent; border: none; }
.mixer-seq .seq-build-row { flex-wrap: wrap; }
.pad-btn.pad-mini {
    aspect-ratio: 1 / 1;
    font-size: 0.50rem; letter-spacing: 0.02em;
    padding: 3px;
    border-radius: 5px;
}
.pad-btn.pad-mini .pad-name { line-height: 1.05; }
.mix-strip { display: flex; flex-direction: column; align-items: center; gap: 6px; min-width: 60px; }
.mix-strip-master { margin-left: auto; padding-left: 12px; border-left: 1px dashed var(--border); }
.mix-stack { display: flex; align-items: stretch; gap: 4px; height: 240px; }
.mix-meter {
    position: relative; width: 14px;
    background: rgba(0,0,0,0.55); border: 1px solid var(--border);
    overflow: hidden; border-radius: 2px;
}
/* Tick marks at -3 (limiter), -6, -12, -24, -48 dBFS — meter range is -60..0 */
.mix-meter::after {
    content: ''; position: absolute; inset: 0; pointer-events: none; z-index: 2;
    background:
        linear-gradient(to top,
            transparent calc(20% - 0.5px),
            rgba(255,255,255,0.45) calc(20% - 0.5px),
            rgba(255,255,255,0.45) calc(20% + 0.5px),
            transparent calc(20% + 0.5px),
            transparent calc(60% - 0.5px),
            rgba(255,255,255,0.45) calc(60% - 0.5px),
            rgba(255,255,255,0.45) calc(60% + 0.5px),
            transparent calc(60% + 0.5px),
            transparent calc(80% - 0.5px),
            rgba(255,255,255,0.55) calc(80% - 0.5px),
            rgba(255,255,255,0.55) calc(80% + 0.5px),
            transparent calc(80% + 0.5px),
            transparent calc(90% - 0.5px),
            rgba(255,255,255,0.55) calc(90% - 0.5px),
            rgba(255,255,255,0.55) calc(90% + 0.5px),
            transparent calc(90% + 0.5px),
            transparent calc(95% - 0.5px),
            rgba(255,255,255,0.7) calc(95% - 0.5px),
            rgba(255,255,255,0.7) calc(95% + 0.5px),
            transparent calc(95% + 0.5px)
        );
}
.mix-fader {
    --pos: 0;
    position: relative;
    width: 30px; height: 100%;
    cursor: pointer;
    user-select: none;
    touch-action: none;
}
.mix-fader-track {
    position: absolute; top: 8px; bottom: 8px; left: 50%;
    transform: translateX(-50%);
    width: 4px;
    background: linear-gradient(to top, rgba(0,255,159,0.18), rgba(0,255,159,0.04));
    border-radius: 2px;
    pointer-events: none;
}
.mix-fader-thumb {
    position: absolute; left: 0; right: 0;
    height: 16px;
    bottom: calc(var(--pos) * (100% - 16px));
    background: linear-gradient(180deg, #383c47, #1f222a);
    border: 1px solid var(--green);
    border-radius: 3px;
    box-shadow: 0 0 6px rgba(0,255,159,0.35), inset 0 1px 0 rgba(255,255,255,0.10);
    pointer-events: none;
}
.mix-fader-thumb::after {
    content: ''; position: absolute; left: 4px; right: 4px; top: 50%;
    height: 1px; background: rgba(0,255,159,0.6);
    transform: translateY(-0.5px);
}
.mix-fader:active .mix-fader-thumb { background: linear-gradient(180deg, #4a4f5c, #2a2d36); }
.mix-readout { font-size: 0.55rem; color: var(--muted); letter-spacing: 0.06em; min-height: 0.7rem; font-variant-numeric: tabular-nums; }
.mix-meter-bar {
    position: absolute; bottom: 0; left: 0; right: 0; height: 0%;
    background: linear-gradient(to top, #00ff9f 0%, #00ff9f 60%, #ffe14a 78%, #ff5050 95%);
    box-shadow: 0 0 4px rgba(0,255,159,0.3);
    pointer-events: none;
}
.mix-meter-clip {
    position: absolute; top: 0; left: 0; right: 0; height: 5px;
    background: rgba(255,80,80,0.15); cursor: pointer;
    border-bottom: 1px solid rgba(255,80,80,0.3);
}
.mix-meter-clip.clipped {
    background: #ff3030;
    box-shadow: 0 0 10px rgba(255,48,48,0.9);
    border-bottom-color: #ff3030;
}
.mix-strip-label { font-size: 0.55rem; color: var(--muted); letter-spacing: 0.10em; }
.mixer-footer { padding: 14px 18px; border-top: 1px solid var(--border); display: flex; gap: 10px; }
.limiter-btn {
    background: transparent; border: 1px solid var(--border); color: var(--muted);
    padding: 8px 18px; border-radius: 4px; cursor: pointer;
    font-size: 0.65rem; letter-spacing: 0.16em; font-weight: 700;
    font-family: inherit;
}
.limiter-btn:hover { color: var(--green); border-color: var(--green); }
.limiter-btn.active { color: var(--green); border-color: var(--green); text-shadow: 0 0 8px rgba(0,255,159,0.4); }