:root,
body[data-theme="carbon-core"] {
    --bg: #040b15;
    --bg-deep: #020711;
    --surface: rgba(8, 18, 34, 0.88);
    --surface-strong: rgba(12, 27, 48, 0.96);
    --surface-soft: rgba(12, 25, 44, 0.68);
    --border: rgba(94, 170, 255, 0.18);
    --border-strong: rgba(64, 209, 255, 0.4);
    --text: #edf5ff;
    --text-muted: #96adcd;
    --accent: #40d1ff;
    --accent-hover: #6edcff;
    --accent-2: #785cff;
    --success: #24e8b1;
    --danger: #ff6f8a;
    --warning: #ffbe62;
    --page-bg:
        radial-gradient(circle at 9% 0%, rgba(64, 209, 255, 0.18), transparent 27%),
        radial-gradient(circle at 88% 12%, rgba(120, 92, 255, 0.18), transparent 25%),
        radial-gradient(circle at 52% 100%, rgba(36, 232, 177, 0.1), transparent 30%),
        linear-gradient(180deg, #040b15 0%, #081321 52%, #030810 100%);
    --shadow: 0 28px 80px rgba(0, 0, 0, 0.44);
    --glow: 0 0 0 1px rgba(64, 209, 255, 0.1), 0 0 32px rgba(64, 209, 255, 0.1);
}

body[data-theme="aurora"] {
    --bg: #03121a; --bg-deep: #020c12;
    --surface: rgba(6, 25, 31, 0.9); --surface-strong: rgba(8, 37, 42, 0.96); --surface-soft: rgba(8, 30, 35, 0.68);
    --border: rgba(82, 255, 214, 0.18); --border-strong: rgba(82, 255, 214, 0.4);
    --text: #edfffb; --text-muted: #8bc6c8; --accent: #52ffd6; --accent-hover: #83ffe2; --accent-2: #6f7bff; --success: #44eab2; --danger: #ff7f9b; --warning: #ffce73;
    --page-bg: radial-gradient(circle at 12% 7%, rgba(82, 255, 214, 0.18), transparent 29%), radial-gradient(circle at 86% 18%, rgba(118, 132, 255, 0.18), transparent 24%), linear-gradient(180deg, #03121a 0%, #071d27 52%, #021116 100%);
    --shadow: 0 28px 80px rgba(0, 9, 13, 0.5); --glow: 0 0 0 1px rgba(82, 255, 214, 0.1), 0 0 32px rgba(82, 255, 214, 0.1);
}

body[data-theme="ember"] {
    --bg: #14070a; --bg-deep: #0d0407;
    --surface: rgba(34, 12, 17, 0.9); --surface-strong: rgba(47, 16, 22, 0.96); --surface-soft: rgba(38, 13, 18, 0.7);
    --border: rgba(255, 169, 92, 0.18); --border-strong: rgba(255, 129, 77, 0.42);
    --text: #fff1eb; --text-muted: #d8a79d; --accent: #ff9c5d; --accent-hover: #ffb57f; --accent-2: #ff6f8a; --success: #ffd36d; --danger: #ff7c7c; --warning: #ffd36d;
    --page-bg: radial-gradient(circle at 8% 10%, rgba(255, 169, 92, 0.2), transparent 27%), radial-gradient(circle at 86% 18%, rgba(255, 92, 124, 0.16), transparent 24%), linear-gradient(180deg, #14070a 0%, #1f0d11 52%, #10060a 100%);
    --shadow: 0 28px 80px rgba(12, 0, 3, 0.52); --glow: 0 0 0 1px rgba(255, 156, 93, 0.1), 0 0 32px rgba(255, 111, 138, 0.1);
}

body[data-theme="midnight-core"] {
    --bg: #01050d; --bg-deep: #000309;
    --surface: rgba(4, 9, 18, 0.94); --surface-strong: rgba(8, 14, 27, 0.98); --surface-soft: rgba(7, 12, 23, 0.74);
    --border: rgba(90, 135, 255, 0.16); --border-strong: rgba(90, 135, 255, 0.34);
    --text: #eef3ff; --text-muted: #8c9fc3; --accent: #69b4ff; --accent-hover: #91c8ff; --accent-2: #7f66ff; --success: #2bd7b8; --danger: #ff7894; --warning: #ffc76b;
    --page-bg: radial-gradient(circle at 14% 6%, rgba(63, 130, 255, 0.17), transparent 29%), radial-gradient(circle at 86% 15%, rgba(141, 99, 255, 0.15), transparent 23%), linear-gradient(180deg, #01050d 0%, #050a14 50%, #02050b 100%);
    --shadow: 0 30px 90px rgba(0, 0, 0, 0.62); --glow: 0 0 0 1px rgba(105, 180, 255, 0.08), 0 0 30px rgba(105, 180, 255, 0.08);
}

body[data-theme="starlight"] {
    --bg: #e7eff9; --bg-deep: #d7e2ef;
    --surface: rgba(255, 255, 255, 0.91); --surface-strong: rgba(255, 255, 255, 0.98); --surface-soft: rgba(245, 249, 254, 0.9);
    --border: rgba(92, 126, 189, 0.18); --border-strong: rgba(73, 122, 224, 0.34);
    --text: #18253b; --text-muted: #60718d; --accent: #2f6cff; --accent-hover: #2458d4; --accent-2: #5b6eff; --success: #0b9f74; --danger: #c84b65; --warning: #a96c00;
    --page-bg: radial-gradient(circle at 12% 0%, rgba(104, 149, 255, 0.16), transparent 29%), radial-gradient(circle at 86% 16%, rgba(255, 190, 111, 0.14), transparent 25%), linear-gradient(180deg, #edf4fc 0%, #e5edf7 48%, #dbe6f2 100%);
    --shadow: 0 22px 58px rgba(52, 77, 118, 0.15); --glow: 0 0 0 1px rgba(47, 108, 255, 0.07), 0 0 24px rgba(47, 108, 255, 0.07);
}

body[data-theme="sandstorm"] {
    --bg: #efe3cf; --bg-deep: #e2d1b8;
    --surface: rgba(255, 251, 245, 0.92); --surface-strong: rgba(255, 252, 246, 0.98); --surface-soft: rgba(252, 245, 235, 0.9);
    --border: rgba(168, 129, 75, 0.19); --border-strong: rgba(185, 134, 67, 0.35);
    --text: #3a2b1d; --text-muted: #7a6248; --accent: #b87531; --accent-hover: #92581e; --accent-2: #9f6a33; --success: #708944; --danger: #ba5b4b; --warning: #9e6508;
    --page-bg: radial-gradient(circle at 10% 2%, rgba(255, 219, 164, 0.2), transparent 29%), radial-gradient(circle at 86% 16%, rgba(223, 170, 101, 0.14), transparent 25%), linear-gradient(180deg, #f6efe2 0%, #efe3cf 52%, #e6d7c1 100%);
    --shadow: 0 22px 58px rgba(118, 88, 47, 0.15); --glow: 0 0 0 1px rgba(198, 133, 62, 0.07), 0 0 24px rgba(198, 133, 62, 0.07);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
    padding: 0;
    overflow-x: hidden;
    font-family: "Inter", "Segoe UI", sans-serif;
    background: var(--page-bg);
    background-attachment: fixed;
    color: var(--text);
    transition: color .25s ease, background .35s ease;
}
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image: linear-gradient(color-mix(in srgb, var(--accent) 6%, transparent) 1px, transparent 1px), linear-gradient(90deg, color-mix(in srgb, var(--accent) 6%, transparent) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: radial-gradient(circle at center, #000 38%, transparent 88%);
    opacity: .3;
}

.workshop-shell { width: min(1480px, calc(100vw - 32px)); max-width: none; padding: 16px 0 38px; position: relative; }
.workshop-header,
.workshop-hero,
.theme-console,
.section-rail,
.card {
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: var(--shadow);
    backdrop-filter: blur(22px) saturate(145%);
    -webkit-backdrop-filter: blur(22px) saturate(145%);
}
.workshop-header {
    min-height: 76px;
    border-radius: 26px;
    padding: 12px 16px;
    display: grid;
    grid-template-columns: minmax(230px, .8fr) minmax(450px, 1.4fr) auto;
    gap: 18px;
    align-items: center;
    position: sticky;
    top: 10px;
    z-index: 100;
}
.brand-link { display: flex; align-items: center; gap: 12px; color: var(--text); text-decoration: none; }
.brand-link strong { display: block; font: 700 1.05rem/1.15 "Orbitron", sans-serif; letter-spacing: .03em; }
.brand-mark { width: 46px; height: 46px; border-radius: 15px; flex: none; position: relative; background: radial-gradient(circle at 30% 30%, #fff, color-mix(in srgb, var(--accent) 88%, white) 23%, transparent 67%), linear-gradient(135deg, var(--warning), var(--accent) 45%, var(--accent-2)); box-shadow: 0 0 24px color-mix(in srgb, var(--accent) 25%, transparent); }
.brand-mark::before { content: ""; position: absolute; inset: 10px; border: 2px solid rgba(255,255,255,.9); border-radius: 9px; transform: rotate(45deg); }
.eyebrow { display: block; margin: 0 0 5px; color: var(--accent); font-size: .66rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.app-nav { display: flex; justify-content: center; gap: 5px; }
.app-nav a { padding: 9px 12px; border: 1px solid transparent; border-radius: 999px; color: var(--text-muted); text-decoration: none; font-size: .76rem; font-weight: 700; white-space: nowrap; transition: .2s ease; }
.app-nav a:hover { color: var(--text); background: var(--surface-soft); }
.app-nav a.active { color: var(--bg-deep); background: linear-gradient(135deg, var(--accent), var(--success)); box-shadow: var(--glow); }
.runtime-cluster { display: flex; align-items: center; justify-content: flex-end; gap: 9px; }
.runtime-label { color: var(--text-muted); font-size: .68rem; font-weight: 800; text-transform: uppercase; letter-spacing: .12em; }
.status-badge { margin: 0; border: 1px solid color-mix(in srgb, var(--danger) 45%, transparent); background: color-mix(in srgb, var(--danger) 14%, var(--surface)); color: var(--text); }
.status-badge.online { color: var(--bg-deep); background: var(--success); }

.workshop-hero { margin-top: 14px; padding: clamp(24px, 4vw, 52px); border-radius: 30px; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(360px, .65fr); gap: 34px; align-items: center; overflow: hidden; position: relative; }
.workshop-hero::after { content: ""; position: absolute; width: 520px; height: 520px; right: -230px; top: -280px; border-radius: 50%; border: 1px solid var(--border-strong); box-shadow: 0 0 100px color-mix(in srgb, var(--accent) 18%, transparent), inset 0 0 70px color-mix(in srgb, var(--accent-2) 10%, transparent); }
.hero-copy { position: relative; z-index: 1; }
.hero-copy h1 { margin: 0; max-width: 15ch; color: var(--text); font: 800 clamp(2.2rem, 5vw, 5rem)/.98 "Orbitron", sans-serif; letter-spacing: -.055em; }
.hero-copy .subtitle { max-width: 750px; margin: 18px 0 0; color: var(--text-muted); font-size: clamp(.95rem, 1.4vw, 1.12rem); line-height: 1.7; }
.top-actions { margin: 24px 0 0; }
.quick-link { border-color: var(--border); background: var(--surface-soft); color: var(--text); padding: 9px 14px; }
.quick-link:hover { border-color: var(--border-strong); color: var(--accent); text-decoration: none; }
.signal-console { position: relative; z-index: 1; border: 1px solid var(--border); border-radius: 24px; background: color-mix(in srgb, var(--surface-strong) 86%, transparent); padding: 20px; box-shadow: var(--glow); }
.console-label { color: var(--text-muted); font-size: .7rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.signal-chain { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin: 14px 0 20px; }
.signal-chain a { display: grid; gap: 5px; padding: 14px; border: 1px solid var(--border); border-radius: 15px; background: var(--surface-soft); color: var(--text); text-decoration: none; }
.signal-chain a:hover { border-color: var(--border-strong); }
.signal-chain strong { color: var(--accent); font: 700 .72rem "Orbitron", sans-serif; }
.signal-chain span { font-weight: 700; }
.meter-bank { height: 82px; display: flex; align-items: end; gap: 8px; padding: 8px; border-radius: 14px; background: var(--bg-deep); }
.meter-bank i { flex: 1; height: var(--level); min-height: 12px; border-radius: 999px 999px 4px 4px; background: linear-gradient(0deg, var(--success), var(--accent) 68%, var(--warning)); box-shadow: 0 0 10px color-mix(in srgb, var(--accent) 28%, transparent); animation: meterPulse 1.8s ease-in-out infinite alternate; transform-origin: bottom; }
.meter-bank i:nth-child(2n) { animation-delay: -.7s; }.meter-bank i:nth-child(3n) { animation-delay: -1.2s; }
@keyframes meterPulse { to { transform: scaleY(.65); opacity: .72; } }

.theme-console { margin-top: 14px; padding: 16px 18px; border-radius: 24px; display: grid; grid-template-columns: auto 1fr; gap: 24px; align-items: center; }
.theme-console h2 { margin: 0; font: 700 1rem "Orbitron", sans-serif; }
.theme-deck { display: grid; grid-template-columns: repeat(6, minmax(112px, 1fr)); gap: 8px; }
.theme-card { min-width: 0; padding: 7px; display: flex; align-items: center; gap: 8px; border: 1px solid var(--border); border-radius: 13px; color: var(--text-muted); background: var(--surface-soft); cursor: pointer; font: 700 .68rem "Inter", sans-serif; text-align: left; }
.theme-card:hover,.theme-card.active { color: var(--text); border-color: var(--border-strong); box-shadow: var(--glow); }
.theme-swatch { width: 30px; height: 30px; flex: none; border-radius: 9px; border: 1px solid rgba(255,255,255,.18); }
.swatch-carbon-core { background: linear-gradient(135deg,#040b15,#40d1ff 52%,#785cff); }.swatch-aurora { background: linear-gradient(135deg,#03121a,#52ffd6 54%,#6f7bff); }.swatch-ember { background: linear-gradient(135deg,#14070a,#ff9c5d 52%,#ff6f8a); }.swatch-midnight { background: linear-gradient(135deg,#01050d,#69b4ff 54%,#7f66ff); }.swatch-starlight { background: linear-gradient(135deg,#edf4fc,#2f6cff 54%,#0fb785); }.swatch-sandstorm { background: linear-gradient(135deg,#f6efe2,#c6853e 54%,#8b9f5a); }

.section-rail { position: sticky; top: 100px; z-index: 90; margin: 14px 0; padding: 8px; border-radius: 18px; display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; }
.section-rail a { display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 38px; border-radius: 11px; color: var(--text-muted); text-decoration: none; font-size: .76rem; font-weight: 700; }
.section-rail a:hover { color: var(--text); background: var(--surface-soft); }
.section-rail span { color: var(--accent); font: 700 .62rem "Orbitron", sans-serif; }

.workshop-flow { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 14px; align-items: start; }
.card { grid-column: span 6; margin: 0; border-radius: 24px; padding: 22px; background: var(--surface); }
.feature-card,#stemsCard,#analysisCard,#producerCard,#layersCard,#arrangeCard,#mixCard { grid-column: 1 / -1; }
.card h2 { color: var(--text); font: 700 1.1rem "Orbitron", sans-serif; letter-spacing: -.02em; padding-bottom: 13px; border-bottom: 1px solid var(--border); }
.card h2 .step { color: var(--accent); font: 700 .64rem "Orbitron", sans-serif; letter-spacing: .08em; text-transform: uppercase; }
.upload-zone { min-height: 210px; display: grid; place-content: center; border-color: var(--border-strong); background: linear-gradient(135deg, color-mix(in srgb,var(--accent) 6%,transparent), color-mix(in srgb,var(--accent-2) 7%,transparent)); }
.upload-zone:hover,.upload-zone.dragging { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, var(--surface-soft)); transform: translateY(-2px); }
.upload-zone .icon { filter: drop-shadow(0 0 16px color-mix(in srgb,var(--accent) 35%,transparent)); }
.tabs { padding: 5px; border-radius: 14px; background: var(--bg-deep); }
.tab { flex: 1; text-align: center; border: 0; border-radius: 10px; color: var(--text-muted); font-weight: 700; }
.tab.active { color: var(--bg-deep); background: linear-gradient(135deg,var(--accent),var(--success)); }
.form-group input,.form-group select,.form-group textarea,textarea,.halo-input-row input,.track-item .volume,.track-item .pan,.placement-row input,.editor-controls input,.section-select { border-color: var(--border); background: var(--bg-deep); color: var(--text); border-radius: 10px; min-height: 42px; }
.form-group input:focus,.form-group select:focus,.form-group textarea:focus,textarea:focus,.halo-input-row input:focus { outline: 2px solid color-mix(in srgb,var(--accent) 25%,transparent); outline-offset: 1px; border-color: var(--accent); }
.form-group label,.analysis-panel .label { color: var(--text-muted); font-weight: 700; letter-spacing: .03em; }
.btn { min-height: 40px; border: 1px solid transparent; border-radius: 11px; font-family: "Inter",sans-serif; }
.btn:focus-visible,.quick-link:focus-visible,.app-nav a:focus-visible,.section-rail a:focus-visible,.theme-card:focus-visible,.tab:focus-visible { outline: 3px solid color-mix(in srgb,var(--accent) 38%,transparent); outline-offset: 2px; }
.btn-primary { background: linear-gradient(135deg,var(--accent),var(--accent-2)); color: #fff; }.btn-success { background: linear-gradient(135deg,var(--success),var(--accent)); color: var(--bg-deep); }.btn-purple { background: linear-gradient(135deg,var(--accent-2),var(--accent)); }.btn-mic { background: linear-gradient(135deg,var(--success),color-mix(in srgb,var(--success) 55%,#147c6e)); color: var(--bg-deep); }
.analysis-panel,.halo-panel,.layer-card,.stem-card,.track-item,.channel-strip,.recipe-card,.director-card,.instrument-tile { border-color: var(--border); background: var(--surface-soft); border-radius: 14px; }
.analysis-panel,.halo-panel { padding: 15px; }
.stem-card { padding: 13px; }.stem-card audio { margin-top: 8px; }
.instrument-tile:hover,.recipe-card:hover,.recipe-card.selected { border-color: var(--border-strong); background: color-mix(in srgb,var(--accent) 8%,var(--surface-soft)); }
.chip,.preset { border-color: var(--border); color: var(--text-muted); background: var(--surface-soft); }.chip.selected,.preset.selected { color: var(--bg-deep); background: linear-gradient(135deg,var(--accent),var(--success)); }
.voicebox-status { border: 1px solid color-mix(in srgb,var(--danger) 35%,transparent); background: color-mix(in srgb,var(--danger) 12%,transparent); color: var(--danger); }.voicebox-status.online { border-color: color-mix(in srgb,var(--success) 35%,transparent); color: var(--success); background: color-mix(in srgb,var(--success) 10%,transparent); }
.progress-bar { height: 7px; background: var(--bg-deep); }.progress-bar .fill { background: linear-gradient(90deg,var(--accent-2),var(--accent),var(--success)); }
.channel-strip { min-width: 0; }.channel-strip.soloed { border-color: var(--accent); box-shadow: var(--glow); }.wave-wrap,.editor-timeline,.wavesurfer-editor { background: var(--bg-deep); border-color: var(--border); }
.stem-editor { background: var(--surface-strong); border-color: var(--border-strong); border-radius: 20px; box-shadow: 0 28px 100px rgba(0,0,0,.62); }
.mix-result { background: color-mix(in srgb,var(--success) 8%,var(--surface)); border-color: var(--success); }
audio { accent-color: var(--accent); }
.toast { box-shadow: var(--shadow); border: 1px solid rgba(255,255,255,.2); }.toast.info { background: var(--accent); color: var(--bg-deep); }.toast.success { color: var(--bg-deep); }
.workshop-footer { display: flex; justify-content: space-between; gap: 16px; padding: 22px 6px 0; color: var(--text-muted); font-size: .78rem; }.workshop-footer a { color: var(--accent); text-decoration: none; }

body[data-theme="starlight"] .meter-bank,
body[data-theme="sandstorm"] .meter-bank,
body[data-theme="starlight"] .tabs,
body[data-theme="sandstorm"] .tabs,
body[data-theme="starlight"] input,
body[data-theme="sandstorm"] input,
body[data-theme="starlight"] select,
body[data-theme="sandstorm"] select,
body[data-theme="starlight"] textarea,
body[data-theme="sandstorm"] textarea { background: color-mix(in srgb,var(--bg-deep) 48%,white); }

@media (max-width: 1120px) {
    .workshop-header { grid-template-columns: 1fr auto; }
    .app-nav { grid-column: 1 / -1; grid-row: 2; justify-content: flex-start; overflow-x: auto; padding-top: 4px; }
    .workshop-hero { grid-template-columns: 1fr; }
    .signal-console { max-width: 680px; }
    .theme-console { grid-template-columns: 1fr; }
    .theme-deck { grid-template-columns: repeat(3,1fr); }
}
@media (max-width: 780px) {
    .workshop-shell { width: min(100% - 18px,1480px); padding-top: 9px; }
    .workshop-header { position: relative; top: 0; border-radius: 20px; grid-template-columns: 1fr; }
    .runtime-cluster { justify-content: flex-start; }
    .app-nav { grid-column: auto; grid-row: auto; }
    .workshop-hero { padding: 24px 18px; border-radius: 22px; }
    .hero-copy h1 { font-size: clamp(2rem,11vw,3.3rem); }
    .theme-deck { grid-template-columns: repeat(2,1fr); }
    .section-rail { position: relative; top: 0; grid-template-columns: repeat(3,1fr); }
    .card { grid-column: 1 / -1; padding: 17px; border-radius: 19px; }
    .mixer-board { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .stem-editor { left: 3vw; top: 3vh; width: 94vw; height: 88vh; }
}
@media (max-width: 500px) {
    .brand-link strong { font-size: .9rem; }
    .brand-mark { width: 40px; height: 40px; }
    .app-nav a { padding: 8px 10px; }
    .signal-chain,.theme-deck,.section-rail,.mixer-board { grid-template-columns: 1fr 1fr; }
    .theme-card { font-size: .62rem; }
    .top-actions,.voice-actions { align-items: stretch; }
    .quick-link,.voice-actions .btn { justify-content: center; width: 100%; }
    .workshop-footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *,*::before,*::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}