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

:root {
  --ink: #eee9df;
  --muted: #918e86;
  --line: #34322e;
  --surface: #1a1916;
  --surface-2: #22211d;
  --bg: #11110f;
  --acid: #d9ff43;
  --orange: #ff7145;
  --blue: #70b9ff;
  color-scheme: dark;
  font-family: "Manrope", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% -10%, #333324 0, transparent 32rem),
    var(--bg);
}

button, select, input { font: inherit; }
button { color: inherit; }

.shell { width: min(1440px, 100%); margin: 0 auto; padding: 0 42px; }
.topbar { min-height: 112px; display: grid; grid-template-columns: auto minmax(190px, 1fr) auto; align-items: center; gap: clamp(24px, 4vw, 64px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 13px; color: var(--ink); text-decoration: none; }
.brand strong { display: block; letter-spacing: .14em; font-size: 14px; }
.brand small { display: block; color: var(--muted); font: 10px/1.5 "DM Mono"; letter-spacing: .12em; }
.brand-mark { width: 31px; height: 31px; display: flex; align-items: center; gap: 3px; padding: 5px; border: 1px solid #555247; border-radius: 50%; }
.brand-mark i { display: block; width: 5px; border-radius: 4px; background: var(--acid); }
.brand-mark i:nth-child(1) { height: 10px; }.brand-mark i:nth-child(2) { height: 19px; }.brand-mark i:nth-child(3) { height: 14px; }
.header-copy { max-width: 390px; margin: 0; color: #aaa69d; font-size: 12px; line-height: 1.6; }
.midi-connection { display: flex; align-items: center; gap: 12px; }
.header-input { display: grid; min-width: 170px; gap: 6px; color: var(--muted); font: 9px "DM Mono"; letter-spacing: .11em; }
.header-input select { padding-block: 9px; }
.connection-state { color: var(--muted); font: 11px "DM Mono"; text-transform: uppercase; letter-spacing: .07em; }
.connection-state i { display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; background: #55534e; }
.connection-state i.online { background: var(--acid); box-shadow: 0 0 12px #d9ff4388; }
.button { border: 1px solid #5d5a52; border-radius: 2px; background: transparent; padding: 12px 18px; cursor: pointer; font-size: 12px; text-transform: uppercase; letter-spacing: .07em; }
.button:hover { background: var(--ink); color: var(--bg); }
.panic-button { border-color: #71473c; color: #ff9677; }
.panic-button:hover { border-color: var(--orange); background: var(--orange); color: #171714; }
.theme-button { min-width: 62px; }

main { padding: 30px 0 40px; }
.eyebrow { color: var(--acid); font: 11px "DM Mono"; letter-spacing: .16em; }
h1 { margin: 18px 0 0; font-size: clamp(48px, 6vw, 90px); font-weight: 500; line-height: .94; letter-spacing: -.065em; }
h1 em { color: var(--muted); font-family: Georgia, serif; font-weight: 400; }
.intro-copy > p { color: #aaa69d; font-size: 15px; line-height: 1.7; max-width: 370px; }
.input-row { display: grid; grid-template-columns: 105px 1fr; align-items: center; margin-top: 25px; }
.input-row label, .track-routing label { color: var(--muted); font: 10px "DM Mono"; letter-spacing: .11em; }
select, input { width: 100%; border: 1px solid #46443e; border-radius: 2px; padding: 11px; color: var(--ink); background: #191815; }
select { padding-right: 30px; }
select:disabled { opacity: .55; }

.session-panel { display: grid; grid-template-columns: auto minmax(150px, 1fr) auto minmax(180px, 1.2fr) auto auto; gap: 10px; align-items: end; margin-bottom: 22px; padding: 20px; border: 1px solid var(--line); background: #171714; }
.session-title { align-self: center; margin-right: 15px; }
.session-title .eyebrow { margin: 0 0 5px; }
.session-title h2 { margin: 0; font-size: 20px; font-weight: 500; }
.session-field { display: grid; gap: 7px; color: var(--muted); font: 9px "DM Mono"; letter-spacing: .11em; }
.session-panel .button { min-height: 40px; padding: 10px 15px; }
.session-save { border-color: #67752e; color: var(--acid); }
.session-delete { color: #d38b76; }
.session-panel .button:disabled { opacity: .35; cursor: default; }
.session-status { grid-column: 2 / -1; min-height: 14px; color: var(--muted); font: 9px "DM Mono"; letter-spacing: .04em; }
.session-status.error { color: #ff9677; }
.session-backup-actions { grid-column: 2 / -1; display: flex; gap: 8px; }
.session-backup-actions .button { min-height: 34px; padding: 8px 12px; }
.import-button { display: inline-grid; place-items: center; }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }

.tracks { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); }
.track-card { --track-color: var(--acid); position: relative; min-width: 0; padding: 25px; background: #171714; overflow: hidden; }
.track-card + .track-card { border-left: 1px solid var(--line); }
.track-card:nth-child(2) { --track-color: var(--orange); }
.track-card:nth-child(3) { --track-color: var(--blue); }
.track-accent { position: absolute; inset: 0 0 auto; height: 3px; background: var(--track-color); transform: scaleX(0); transform-origin: left; transition: transform .3s; }
.track-card.has-loop .track-accent, .track-card.recording .track-accent { transform: scaleX(1); }
.track-head { display: grid; grid-template-columns: 44px 1fr auto; gap: 14px; align-items: center; }
.track-number { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid #514f48; border-radius: 50%; font: 18px "DM Mono"; }
.track-state { color: var(--track-color); font: 9px "DM Mono"; letter-spacing: .15em; }
.track-title h2 { margin: 4px 0 0; font-size: 18px; font-weight: 500; }
.icon-button { width: 32px; height: 32px; border: 0; color: var(--muted); background: transparent; font-size: 25px; cursor: pointer; }
.icon-button:hover { color: var(--ink); }
.time-display { margin: 47px 0 21px; }
.elapsed { display: block; font: clamp(37px, 4vw, 55px)/1 "DM Mono"; font-weight: 300; letter-spacing: -.07em; }
.time-display small { color: var(--muted); font: 9px "DM Mono"; letter-spacing: .13em; }
.progress { height: 2px; background: #393832; overflow: hidden; }
.progress i { display: block; width: 100%; height: 100%; background: var(--track-color); transform: scaleX(0); transform-origin: left; }
.track-stats { display: flex; justify-content: space-between; margin: 10px 0 33px; color: var(--muted); font: 10px "DM Mono"; text-transform: uppercase; }
.track-stats b { color: var(--ink); font-weight: 400; }
.track-routing { display: grid; grid-template-columns: 1fr 80px; gap: 12px; padding: 20px 0; border-top: 1px solid var(--line); }
.track-routing label { display: grid; gap: 8px; }
.speed-control { grid-column: 1 / -1; }
.speed-control span { display: grid; grid-template-columns: 1fr 48px; align-items: center; gap: 12px; }
.speed-slider { height: 18px; padding: 0; border: 0; accent-color: var(--track-color); background: transparent; cursor: pointer; }
.speed-value { color: var(--track-color); font: 11px "DM Mono"; text-align: right; }
.track-actions { display: grid; grid-template-columns: 1fr 1fr .65fr; gap: 7px; }
.track-actions button { min-height: 48px; border: 1px solid #484641; border-radius: 2px; background: transparent; cursor: pointer; font-size: 11px; text-transform: uppercase; letter-spacing: .05em; }
.track-actions button:disabled { opacity: .35; cursor: default; }
.track-actions button:not(:disabled):hover { border-color: var(--track-color); }
.record-button i { display: inline-block; width: 8px; height: 8px; margin-right: 8px; border-radius: 50%; background: var(--orange); }
.track-card.recording .record-button { color: #171714; background: var(--orange); border-color: var(--orange); }
.track-card.playing .play-button, .mute-button[aria-pressed="true"] { color: #171714; background: var(--track-color); border-color: var(--track-color); }
.play-icon { margin-right: 6px; }

.piano-roll-panel { margin-top: 30px; padding: 30px 30px 20px; border: 1px solid var(--line); background: #151512; }
.roll-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 24px; }
.roll-heading h2 { margin: 7px 0 0; font-size: 24px; font-weight: 500; }
.roll-legend { display: flex; gap: 20px; color: var(--muted); font: 10px "DM Mono"; text-transform: uppercase; }
.roll-legend span { display: flex; align-items: center; gap: 7px; }
.roll-legend i { display: inline-block; width: 16px; height: 4px; background: var(--acid); }
.roll-legend .voice-two i { background: var(--orange); }
.roll-legend .voice-three i { background: var(--blue); }
.roll-stage { position: relative; height: 360px; border: 1px solid #35342f; overflow: hidden; background: #11110f; }
#piano-roll { display: block; width: 100%; height: 100%; }
.roll-empty { position: absolute; inset: 0; display: grid; place-items: center; color: #6f6d66; font: 11px "DM Mono"; text-transform: uppercase; letter-spacing: .08em; pointer-events: none; }
.roll-empty.hidden { display: none; }
.roll-caption { display: flex; justify-content: space-between; padding-top: 10px; color: #6f6d66; font: 9px "DM Mono"; text-transform: uppercase; letter-spacing: .08em; }

kbd { display: inline-block; padding: 2px 6px; border: 1px solid #4a4841; border-radius: 2px; color: #bcb8ae; background: #22211d; font: 10px "DM Mono"; box-shadow: 0 1px #000; }

footer { display: flex; justify-content: space-between; padding: 24px 0 32px; border-top: 1px solid var(--line); color: var(--muted); font: 10px "DM Mono"; text-transform: uppercase; letter-spacing: .07em; }

@media (max-width: 950px) {
  .shell { padding: 0 22px; }
  .topbar { grid-template-columns: auto 1fr; padding: 18px 0; gap: 14px 30px; }
  .header-copy { justify-self: end; }
  .midi-connection { grid-column: 1 / -1; }
  .header-input { flex: 1; }
  .tracks { grid-template-columns: 1fr; }
  .session-panel { grid-template-columns: minmax(130px, 1fr) auto minmax(170px, 1fr) auto auto; }
  .session-title { grid-column: 1 / -1; }
  .session-name-field { grid-column: 1; }
  .session-list-field { grid-column: 3; }
  .session-status { grid-column: 1 / -1; }
  .session-backup-actions { grid-column: 1 / -1; }
  .track-card + .track-card { border-left: 0; border-top: 1px solid var(--line); }
}

@media (max-width: 620px) {
  .shell { padding: 0 14px; }
  .topbar { min-height: 80px; grid-template-columns: 1fr auto; }
  .header-copy { grid-column: 1 / -1; justify-self: start; max-width: none; }
  .connection-state { display: none; }
  .midi-connection { gap: 6px; }
  .header-input { min-width: 0; }
  .theme-button { min-width: 45px; width: 45px; padding: 10px 9px; font-size: 0; }
  .theme-button::before { content: "☀"; font-size: 14px; }
  :root[data-theme="light"] .theme-button::before { content: "☾"; }
  .panic-button { width: 45px; overflow: hidden; white-space: nowrap; color: transparent; padding: 10px 9px; }
  .panic-button::before { content: "!"; display: block; color: var(--orange); font-weight: 700; }
  .button-connect { padding: 10px 12px; }
  main { padding-top: 20px; }
  .track-card { padding: 20px 16px; }
  .session-panel { grid-template-columns: 1fr 1fr; padding: 16px; }
  .session-field { grid-column: 1 / -1 !important; }
  .session-save { grid-column: 1 / -1; }
  .piano-roll-panel { padding: 22px 14px 16px; }
  .roll-heading { display: block; }
  .roll-legend { margin-top: 18px; gap: 12px; }
  .roll-stage { height: 290px; }
  .roll-caption span:nth-child(2) { display: none; }
  footer { gap: 20px; }
  footer span:last-child { display: none; }
}

@media (max-width: 400px) {
  .brand > span:last-child { display: none; }
  .button-connect { width: 45px; padding-inline: 5px; font-size: 0; }
  .button-connect::before { content: "MIDI"; font-size: 9px; }
}

:root[data-theme="light"] {
  --ink: #24231f;
  --muted: #777269;
  --line: #cfcbc0;
  --surface: #f0ede5;
  --surface-2: #e5e1d7;
  --bg: #f8f5ed;
  --acid: #647d00;
  --orange: #cf4e27;
  --blue: #2279b8;
  color-scheme: light;
}

:root[data-theme="light"] body { background: radial-gradient(circle at 15% -10%, #e6e3ce 0, transparent 32rem), var(--bg); }
:root[data-theme="light"] .header-copy,
:root[data-theme="light"] .intro-copy > p { color: #656158; }
:root[data-theme="light"] select,
:root[data-theme="light"] input { color: var(--ink); background: #fffdf8; border-color: #c3beb2; }
:root[data-theme="light"] .session-panel,
:root[data-theme="light"] .track-card { background: #f5f2ea; }
:root[data-theme="light"] .piano-roll-panel { background: #efebe2; }
:root[data-theme="light"] .roll-stage { background: #fffdf8; border-color: #c9c4b8; }
:root[data-theme="light"] kbd { color: #4e4a42; background: #e6e2d8; border-color: #bbb6aa; box-shadow: 0 1px #c7c1b6; }
:root[data-theme="light"] .progress { background: #d7d2c7; }
:root[data-theme="light"] .brand-mark,
:root[data-theme="light"] .track-number { border-color: #aaa59d; }
:root[data-theme="light"] .track-actions button { border-color: #bbb6aa; }
:root[data-theme="light"] .panic-button { border-color: #c89281; color: #b53d1b; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}