/* LP - giradischi web
   I tre stili vivono tutti qui dentro: cambia [data-theme] sul body e cambiano
   le variabili. Il disegno del disco sul canvas legge le stesse variabili
   tramite js/themes.js, cosi' la palette sta in un posto solo. */

/* ------------------------------------------------------------ palette */

:root {
  --bg: #16171b;
  --bg-2: #1d1f24;
  --panel: #23262c;
  --panel-2: #2a2e35;
  --edge: #34383f;
  --ink: #e8e9ec;
  --ink-dim: #9aa0a9;
  --ink-faint: #6b7178;
  --accent: #d84a3a;
  --accent-2: #f0c040;
  --ok: #4ad07a;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(0, 0, 0, .45);
  --font: "Helvetica Neue", Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --deck-face: linear-gradient(160deg, #3a3e45 0%, #2b2f35 45%, #212429 100%);
  --platter-rim: #4a4f57;
  --arm: #c7ccd3;
  --arm-dark: #7b828b;
  --glow: none;
}

body[data-theme="astratto"] {
  --bg: #ecebe6;
  --bg-2: #f5f4f0;
  --panel: #ffffff;
  --panel-2: #f2f1ec;
  --edge: #d8d6ce;
  --ink: #1b1c1e;
  --ink-dim: #61646a;
  --ink-faint: #9a9da3;
  --accent: #ff4d2e;
  --accent-2: #1f6fff;
  --ok: #12a45c;
  --shadow: 0 12px 34px rgba(20, 20, 20, .14);
  --deck-face: linear-gradient(160deg, #ffffff 0%, #efeee9 100%);
  --platter-rim: #d8d6ce;
  --arm: #1b1c1e;
  --arm-dark: #666;
  --glow: none;
}

body[data-theme="alieno"] {
  --bg: #06080f;
  --bg-2: #0a0e1a;
  --panel: #0e1524;
  --panel-2: #121b2e;
  --edge: #1d2b46;
  --ink: #d6f7ee;
  --ink-dim: #74a8a0;
  --ink-faint: #4a6b70;
  --accent: #35f2b0;
  --accent-2: #b46cff;
  --ok: #35f2b0;
  --shadow: 0 0 46px rgba(53, 242, 176, .16);
  --deck-face: radial-gradient(circle at 35% 25%, #16233c 0%, #0a1120 60%, #060a12 100%);
  --platter-rim: #21406a;
  --arm: #8ff5d6;
  --arm-dark: #2b6f66;
  --glow: 0 0 14px rgba(53, 242, 176, .55);
}

/* ------------------------------------------------------------- base */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

body {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  transition: background .35s ease, color .35s ease;
}

button, input, label { font-family: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ----------------------------------------------------------- topbar */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--edge);
  background: var(--bg-2);
}

.wordmark {
  margin: 0;
  font-size: 21px;
  letter-spacing: .38em;
  font-weight: 700;
  text-shadow: var(--glow);
}

.themes { display: flex; gap: 6px; }

.theme-btn {
  padding: 7px 13px;
  font-size: 11.5px;
  letter-spacing: .09em;
  text-transform: lowercase;
  background: var(--panel);
  color: var(--ink-dim);
  border: 1px solid var(--edge);
  border-radius: 999px;
  transition: .18s;
}
.theme-btn:hover { color: var(--ink); }
.theme-btn.is-on {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: var(--glow);
}
body[data-theme="astratto"] .theme-btn.is-on { color: #fff; }
body[data-theme="alieno"] .theme-btn.is-on { color: #06110d; }

/* ------------------------------------------------------------ board */

.board {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(320px, 400px);
  gap: 26px;
  padding: 26px;
  max-width: 1220px;
  width: 100%;
  margin: 0 auto;
  align-items: start;
}

/* ------------------------------------------------------------- deck */

.deck {
  background: var(--deck-face);
  border: 1px solid var(--edge);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 26px;
}

.platter-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  max-width: 520px;
  margin: 0 auto;
  touch-action: none;
}

/* il perno del braccio, in percentuale del piatto: tutta la geometria
   del tonearm parte da qui e resta valida a qualsiasi dimensione */
.platter-wrap { --perno-x: 86%; --perno-y: 16%; --braccio: 52%; }

.spindle-shadow {
  position: absolute;
  inset: 3%;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 46%, rgba(0, 0, 0, .34), rgba(0, 0, 0, 0) 62%);
  filter: blur(6px);
  pointer-events: none;
}

.platter {
  position: absolute;
  inset: 4%;
  border-radius: 50%;
  will-change: transform;
  cursor: grab;
  box-shadow:
    0 0 0 6px var(--platter-rim),
    0 14px 34px rgba(0, 0, 0, .5);
}
.platter.is-held { cursor: grabbing; }
body[data-theme="alieno"] .platter { box-shadow: 0 0 0 5px var(--platter-rim), 0 0 44px rgba(53, 242, 176, .3); }

#disc {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 50%;
  pointer-events: none;
}

/* la tacca bianca sul bordo: senza, a occhio non capisci quanto gira */
.marker {
  position: absolute;
  top: 1.5%;
  left: 50%;
  width: 3px;
  height: 5.5%;
  margin-left: -1.5px;
  background: rgba(255, 255, 255, .78);
  border-radius: 2px;
  pointer-events: none;
}
body[data-theme="astratto"] .marker { background: rgba(0, 0, 0, .6); }
body[data-theme="alieno"] .marker { background: var(--accent); box-shadow: var(--glow); }

/* ---------------------------------------------------------- tonearm */

.tonearm {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
}

.arm-base {
  position: absolute;
  left: var(--perno-x);
  top: var(--perno-y);
  width: 15%;
  aspect-ratio: 1;
  margin: -7.5% 0 0 -7.5%;
  border-radius: 50%;
  background: linear-gradient(150deg, var(--arm) 0%, var(--arm-dark) 100%);
  box-shadow: 0 3px 9px rgba(0, 0, 0, .45), var(--glow);
}
.arm-base::after {
  content: "";
  position: absolute;
  inset: 33%;
  border-radius: 50%;
  background: rgba(0, 0, 0, .35);
}

/* il pivot e' grande quanto il piatto e ruota attorno al perno: cosi' le
   misure del tubo restano in percentuale e il braccio scala da solo */
.arm-pivot {
  position: absolute;
  inset: 0;
  transform-origin: var(--perno-x) var(--perno-y);
  transform: rotate(0deg);
  transition: transform .09s linear;
}
.arm-pivot.is-held { transition: none; }

.arm-tube {
  position: absolute;
  left: var(--perno-x);
  top: var(--perno-y);
  width: 5px;
  height: var(--braccio);
  margin-left: -2.5px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--arm-dark), var(--arm) 45%, var(--arm-dark));
  transform-origin: 50% 0;
  transform: rotate(-3.5deg);
  box-shadow: 1px 2px 7px rgba(0, 0, 0, .5);
  pointer-events: auto;
  cursor: grab;
}
.arm-tube:active, .arm-pivot.is-held .arm-tube { cursor: grabbing; }
/* zona di presa piu' larga del tubo, altrimenti e' impossibile prenderlo */
.arm-tube::before {
  content: "";
  position: absolute;
  left: -13px;
  top: -6px;
  right: -13px;
  bottom: -14px;
  border-radius: 18px;
}

.arm-head {
  position: absolute;
  bottom: -14px;
  left: 50%;
  width: 15px;
  height: 22px;
  margin-left: -7.5px;
  border-radius: 3px 3px 5px 5px;
  background: linear-gradient(160deg, var(--arm) 0%, var(--arm-dark) 100%);
  transform: rotate(3.5deg);
  box-shadow: 0 2px 6px rgba(0, 0, 0, .5);
}
.arm-head::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 50%;
  width: 2px;
  height: 6px;
  margin-left: -1px;
  background: var(--accent);
  box-shadow: var(--glow);
}

.arm-weight {
  position: absolute;
  left: var(--perno-x);
  top: var(--perno-y);
  width: 22px;
  height: 14px;
  margin: -7px 0 0 -11px;
  border-radius: 4px;
  background: linear-gradient(160deg, var(--arm) 0%, var(--arm-dark) 100%);
  transform-origin: 50% 50%;
  transform: rotate(-3.5deg) translateY(-21px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, .4);
}

/* --------------------------------------------------------- dropzone */

.dropzone[hidden] { display: none; }

.dropzone {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 5;
  border-radius: 50%;
  border: 2px dashed var(--accent);
  background: rgba(0, 0, 0, .55);
  font-size: 14px;
  letter-spacing: .1em;
  z-index: 4;
}
body[data-theme="astratto"] .dropzone { background: rgba(255, 255, 255, .8); }

.deck-readout {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-top: 20px;
  font-family: var(--mono);
}
.rpm-live {
  font-size: 26px;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  text-shadow: var(--glow);
  min-width: 3.6ch;
  text-align: right;
}
.rpm-unit { font-size: 11px; color: var(--ink-faint); letter-spacing: .09em; }
.tc {
  margin-left: auto;
  font-size: 12.5px;
  color: var(--ink-dim);
  font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------------------ panel */

.panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 20px;
}

.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.row-label {
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* transport */

.big {
  flex: 1;
  min-width: 148px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  font-size: 12.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  background: var(--panel-2);
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  transition: .16s;
}
.big:hover { border-color: var(--ink-faint); }
.big .led {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-faint);
  transition: .2s;
}
.big[aria-pressed="true"] .led {
  background: var(--ok);
  box-shadow: 0 0 10px var(--ok);
}

.rpm-pick { display: flex; gap: 5px; }
.rpm-btn {
  min-width: 52px;
  padding: 13px 8px;
  font-size: 13px;
  background: var(--panel-2);
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  color: var(--ink-dim);
  transition: .16s;
}
.rpm-btn.is-on {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: var(--glow);
}
body[data-theme="alieno"] .rpm-btn.is-on { color: #06110d; }

/* pitch */

.row-pitch { align-items: stretch; gap: 16px; }

.pitch {
  flex: 0 0 116px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 12px;
  background: var(--panel-2);
  border: 1px solid var(--edge);
  border-radius: var(--radius);
}
.pitch-head { display: flex; flex-direction: column; gap: 2px; }
.pitch-head label {
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.pitch-val {
  font-family: var(--mono);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.fader-track { position: relative; height: 178px; display: grid; place-items: center; }
.detent {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 46px;
  height: 1px;
  margin-left: -23px;
  background: var(--ink-faint);
  opacity: .55;
}

#pitch {
  writing-mode: vertical-lr;
  direction: rtl;
  width: 34px;
  height: 178px;
  margin: 0;
  accent-color: var(--accent);
}

.pitch-foot { display: flex; flex-direction: column; gap: 7px; }
.mini {
  padding: 6px 8px;
  font-size: 10.5px;
  letter-spacing: .1em;
  background: transparent;
  border: 1px solid var(--edge);
  border-radius: 6px;
  color: var(--ink-dim);
}
.mini:hover { color: var(--ink); border-color: var(--ink-faint); }
.check {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 10.5px;
  color: var(--ink-dim);
  cursor: pointer;
}
.check input { accent-color: var(--accent); margin: 0; }

/* knobs */

.knobs {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  justify-content: center;
  padding: 12px;
  background: var(--panel-2);
  border: 1px solid var(--edge);
  border-radius: var(--radius);
}
.knob-cell { display: grid; grid-template-columns: 54px 1fr 52px; align-items: center; gap: 9px; }
.knob-cell label {
  font-size: 10.5px;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.knob-cell input[type="range"] { width: 100%; margin: 0; accent-color: var(--accent); }
.knob-val {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-dim);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* pad e cue */

.pad {
  flex: 1 1 76px;
  padding: 11px 6px;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: lowercase;
  background: var(--panel-2);
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  color: var(--ink-dim);
  transition: .16s;
}
.pad:hover:not(:disabled) { color: var(--ink); border-color: var(--ink-faint); }
.pad:disabled { opacity: .38; cursor: not-allowed; }
.pad[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
body[data-theme="alieno"] .pad[aria-pressed="true"] { color: #06110d; }
.pad.is-on {
  background: var(--accent-2);
  border-color: var(--accent-2);
  color: #fff;
}

.pad.rec { display: flex; align-items: center; justify-content: center; gap: 6px; }
.pad.rec .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink-faint);
}
.pad.rec[aria-pressed="true"] { background: #c0392b; border-color: #c0392b; color: #fff; }
.pad.rec[aria-pressed="true"] .dot { background: #fff; animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: .15; } }

.cue {
  width: 42px;
  height: 38px;
  font-family: var(--mono);
  font-size: 13px;
  background: var(--panel-2);
  border: 1px solid var(--edge);
  border-radius: 8px;
  color: var(--ink-faint);
  transition: .14s;
}
.cue.is-set { color: var(--ink); border-color: var(--accent-2); box-shadow: inset 0 0 0 1px var(--accent-2); }
.hint { flex: 1 1 100%; font-size: 10.5px; color: var(--ink-faint); }

/* carica */

.filebtn { position: relative; overflow: hidden; }
.filebtn input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.filebtn span {
  display: inline-block;
  padding: 11px 15px;
  font-size: 11.5px;
  letter-spacing: .1em;
  background: var(--panel-2);
  border: 1px dashed var(--ink-faint);
  border-radius: var(--radius);
  color: var(--ink-dim);
}
.filebtn:hover span { color: var(--ink); border-color: var(--accent); }
.loaded {
  flex: 1;
  min-width: 0;
  font-size: 11.5px;
  color: var(--ink-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* sample */

.samples { display: flex; flex-wrap: wrap; gap: 6px; width: 100%; }
.samp {
  padding: 8px 11px;
  font-size: 11px;
  background: transparent;
  border: 1px solid var(--edge);
  border-radius: 999px;
  color: var(--ink-dim);
  transition: .14s;
}
.samp:hover { color: var(--ink); border-color: var(--ink-faint); }
.samp.is-on {
  background: var(--accent-2);
  border-color: var(--accent-2);
  color: #fff;
}
body[data-theme="alieno"] .samp.is-on { color: #06110d; }

/* ------------------------------------------------------------- foot */

.foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 14px 26px 22px;
  font-size: 10.5px;
  color: var(--ink-faint);
  border-top: 1px solid var(--edge);
}

/* ----------------------------------------------------------- splash */

.splash {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  background: var(--bg);
  cursor: pointer;
  transition: opacity .45s ease;
}
.splash.is-gone { opacity: 0; pointer-events: none; }
.splash-inner { text-align: center; }
.splash p {
  margin: 24px 0 0;
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: lowercase;
  color: var(--ink-dim);
}
.splash-disc {
  width: 128px;
  height: 128px;
  margin: 0 auto;
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--accent) 0 13%, transparent 13.5%),
    repeating-radial-gradient(circle, #000 0 2px, #191919 2px 4px);
  box-shadow: var(--shadow), var(--glow);
  animation: spin 2.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ------------------------------------------------------- responsive */

@media (max-width: 900px) {
  .board { grid-template-columns: 1fr; padding: 16px; gap: 18px; }
  .deck { padding: 18px; }
  .platter-wrap { max-width: 400px; }
  .foot { padding: 12px 16px 20px; }
}

@media (max-width: 480px) {
  .topbar { padding: 11px 14px; }
  .theme-btn { padding: 6px 9px; font-size: 10.5px; }
  .row-pitch { flex-direction: column; }
  .pitch { flex: 1 1 auto; width: 100%; }
  .fader-track { height: 120px; }
  #pitch { height: 120px; }
}

@media (prefers-reduced-motion: reduce) {
  .splash-disc { animation: none; }
  .pad.rec[aria-pressed="true"] .dot { animation: none; }
}