:root {
  --bg: #f6f3fa;
  --card: #ffffff;
  --ink: #17121f;
  --ink-2: #5d5569;
  --line: #e4ddec;
  --accent: #e0306e;
  --accent-2: #ff8a3d;
  --accent-ink: #ffffff;
  --soft: #f1ebf7;
  --ok: #1f9d55;
  --warn: #b45309;
  --shadow: 0 1px 2px rgba(23, 18, 31, .06), 0 8px 24px rgba(23, 18, 31, .06);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e0b14;
    --card: #19141f;
    --ink: #f4eff9;
    --ink-2: #ada3ba;
    --line: #2d2537;
    --soft: #241d2c;
    --ok: #4ade80;
    --warn: #fbbf24;
    --shadow: none;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e0b14; --card: #19141f; --ink: #f4eff9; --ink-2: #ada3ba; --line: #2d2537;
  --soft: #241d2c; --ok: #4ade80; --warn: #fbbf24; --shadow: none; color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.45 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Noto Sans", sans-serif;
  padding-bottom: env(safe-area-inset-bottom);
}
button, input, textarea, select { font: inherit; color: inherit; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
[hidden] { display: none !important; }

.top {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; letter-spacing: -.01em; white-space: nowrap; }
.engine {
  display: inline-flex; align-items: center; gap: 8px; min-height: 36px;
  padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--card); font-size: 14px; cursor: pointer; white-space: nowrap;
}
.engine .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ink-2); flex: none; }
.engine.on .dot { background: var(--ok); }
.engine.off .dot { background: var(--warn); }

main { max-width: 640px; margin: 0 auto; padding: 8px 16px 40px; }
.lead { font-size: 19px; color: var(--ink-2); margin: 14px 2px 18px; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 20px;
  padding: 18px 16px; margin: 0 0 14px; box-shadow: var(--shadow);
}
h2 { display: flex; align-items: center; gap: 10px; font-size: 19px; margin: 0 0 14px; }
.num {
  display: inline-grid; place-items: center; width: 28px; height: 28px; flex: none;
  border-radius: 50%; font-size: 15px; color: var(--accent-ink);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.btn {
  min-height: 48px; padding: 10px 18px; border-radius: 14px; border: 0; cursor: pointer;
  background: var(--ink); color: var(--bg); font-weight: 650; white-space: nowrap;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
}
.btn.ghost { background: var(--soft); color: var(--ink); }
a.btn { text-decoration: none; }
.btn.small { min-height: 40px; padding: 8px 14px; font-size: 15px; }
.btn.primary {
  width: 100%; color: var(--accent-ink);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 24px color-mix(in srgb, var(--accent) 35%, transparent);
}
.btn.big { min-height: 60px; font-size: 20px; border-radius: 18px; margin-top: 4px; }
.btn:disabled { opacity: .55; cursor: default; }
.btn:focus-visible, .star:focus-visible, select:focus-visible, .chip:focus-visible, .seg button:focus-visible, .result:focus-visible, .link:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 60%, transparent); outline-offset: 2px;
}
.link { background: none; border: 0; padding: 10px 2px; color: var(--accent); font-weight: 600; cursor: pointer; text-align: left; min-height: 44px; }

.search { display: flex; gap: 8px; }
.search input { flex: 1; min-width: 0; }
input[type="search"], textarea {
  width: 100%; min-height: 50px; padding: 12px 14px; border-radius: 14px;
  border: 1px solid var(--line); background: var(--bg); outline: none;
}
input[type="search"]:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; line-height: 1.5; }

/* Modalità: in Semplice i controlli da studio non si vedono */
body[data-mode="simple"] .studio-only { display: none !important; }
.mode { margin: 14px 0 16px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.mode button { display: flex; flex-direction: column; align-items: center; gap: 2px; min-height: 60px; }
.mode button span { font-size: 13px; font-weight: 500; opacity: .75; }
.seg4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.seg5 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.seg5 button:first-child { grid-column: 1 / -1; }
@media (min-width: 560px) { body[data-mode="studio"] .seg4 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .seg5 { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.seg.small button { min-height: 44px; font-size: 15px; }
#style-box { margin-top: 14px; }
.row.wrap { flex-wrap: wrap; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.chip.small { min-height: 36px; padding: 4px 10px; font-size: 14px; font-weight: 600; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
select { min-height: 48px; padding: 8px 12px; border-radius: 14px; border: 1px solid var(--line); background: var(--bg); width: 100%; }
.selects { align-items: flex-end; margin-top: 16px; }
.field.inline { flex: 1 1 140px; min-width: 0; }

.understood { margin-top: 14px; padding: 14px; border-radius: 16px; background: var(--soft); }
.understood h3 { margin: 0 0 8px; font-size: 16px; }
.understood dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 12px; margin: 0; font-size: 15px; }
.understood dt { color: var(--ink-2); }
.understood dd { margin: 0; overflow-wrap: anywhere; }
.understood dd.bad { color: var(--warn); }
.pill { display: inline-block; margin-left: 6px; padding: 0 8px; border-radius: 99px; font-size: 12px; font-weight: 650; vertical-align: 1px; white-space: nowrap; }
.pill.bind { background: color-mix(in srgb, var(--accent) 18%, transparent); color: var(--accent); }
.pill.pref { background: color-mix(in srgb, var(--ink-2) 16%, transparent); color: var(--ink-2); }
.warn { margin: 10px 0 0; padding-left: 18px; color: var(--warn); font-size: 15px; }
.warn:empty { display: none; }
.understood details { margin-top: 10px; }
.understood summary, .checks summary, .track-words summary { cursor: pointer; font-weight: 600; min-height: 32px; }
.understood pre, .track-words pre { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 13px; background: var(--card); border-radius: 12px; padding: 10px; margin: 6px 0; max-height: 260px; overflow: auto; }

.library-bar { display: grid; gap: 8px; margin-bottom: 12px; }
.track-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; }
.star { background: none; border: 0; font-size: 24px; line-height: 1; min-width: 44px; min-height: 44px; cursor: pointer; color: var(--accent); }
.track-details { font-size: 14px; color: var(--ink-2); margin-top: 6px; overflow-wrap: anywhere; }
.track-words { margin-top: 6px; color: var(--ink-2); font-size: 15px; }
.wave { width: 100%; height: 56px; margin-top: 12px; cursor: pointer; display: block; }
.wave rect { fill: color-mix(in srgb, var(--accent) 55%, var(--ink-2)); }
.wave rect.head { fill: var(--ink); }
.checks { margin-top: 8px; font-size: 14px; color: var(--ink-2); }
.checks table { width: 100%; border-collapse: collapse; margin-top: 6px; }
.checks caption { text-align: left; font-weight: 600; padding: 4px 0; }
.checks th, .checks td { text-align: left; padding: 4px 6px 4px 0; border-top: 1px solid var(--line); font-weight: 500; }
.checks tr.ok td:last-child { color: var(--ok); }
.checks tr.no td:last-child { color: var(--warn); }
.extras { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 10px; }
.stem { width: 100%; display: grid; grid-template-columns: 90px 1fr auto; gap: 8px; align-items: center; font-size: 14px; }
.stem audio { margin: 0; }

.msg { color: var(--ink-2); margin: 10px 2px 0; min-height: 0; }
.msg:empty { display: none; }
.msg.err { color: var(--warn); }
.center { text-align: center; }
.hint { color: var(--ink-2); font-size: 15px; margin: 8px 2px 0; }

.results { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 8px; }
.result {
  width: 100%; text-align: left; cursor: pointer; padding: 12px 14px; min-height: 56px;
  border-radius: 14px; border: 1px solid var(--line); background: var(--bg);
}
.result b { display: block; font-size: 17px; }
.result span { color: var(--ink-2); font-size: 14px; }

.chosen { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.chosen-name { font-size: 22px; font-weight: 800; line-height: 1.2; overflow-wrap: anywhere; }
.chosen-genre { margin-top: 4px; font-weight: 650; color: var(--accent); }
.chosen-source { font-size: 14px; color: var(--ink-2); }

.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 10px; }
.chips { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-bottom: 14px; }
.chip, .grid2 button {
  min-height: 48px; padding: 8px 12px; border-radius: 14px; cursor: pointer;
  border: 1px solid var(--line); background: var(--bg); font-weight: 600; font-size: 16px;
  text-align: center; line-height: 1.2; white-space: normal; overflow-wrap: normal; word-break: keep-all; hyphens: none;
}
.chip[aria-pressed="true"], .grid2 button[aria-pressed="true"] {
  border-color: transparent; color: var(--accent-ink);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.field { display: block; }
.field > span, .field-label { display: block; font-weight: 600; margin: 0 2px 8px; }

.seg { display: grid; gap: 8px; }
.seg3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.seg button {
  min-height: 52px; padding: 8px 6px; border-radius: 14px; cursor: pointer;
  border: 1px solid var(--line); background: var(--bg); font-weight: 650; font-size: 16px; line-height: 1.2;
  white-space: nowrap;
}
.seg button[aria-checked="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
#lyrics-box { margin-top: 14px; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 10px; }
.mic[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); }
.mic[aria-pressed="true"] svg { animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .35; } }

.bpm { margin-top: 18px; }
.bpm-head { display: flex; justify-content: space-between; font-weight: 600; margin: 0 2px 6px; }
.bpm-head output { color: var(--accent); }
input[type="range"] { width: 100%; accent-color: var(--accent); min-height: 36px; }

.notice {
  border: 1px solid color-mix(in srgb, var(--warn) 45%, var(--line));
  background: color-mix(in srgb, var(--warn) 10%, var(--card));
  border-radius: 18px; padding: 14px 16px; margin: 0 0 14px;
}
.notice p { margin: 6px 0 10px; color: var(--ink-2); }

.tracks h2 { margin-top: 30px; }
#tracks { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.track { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 14px 16px; box-shadow: var(--shadow); }
.track-title { font-weight: 800; font-size: 18px; overflow-wrap: anywhere; }
.track-sub { color: var(--ink-2); font-size: 14px; margin-top: 2px; }
.track audio { width: 100%; margin-top: 12px; }
.track-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 10px; }
.track-actions > :last-child:nth-child(odd) { grid-column: 1 / -1; }
@media (min-width: 560px) { .track-actions { grid-template-columns: repeat(3, minmax(0, 1fr)); } .track-actions > :last-child:nth-child(odd) { grid-column: auto; } }
.track-actions .btn { min-height: 44px; padding: 8px 6px; font-size: 15px; }
.bar { height: 8px; border-radius: 99px; background: var(--soft); overflow: hidden; margin-top: 12px; }
.bar i { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .6s ease; }
.bar.indet i { width: 35% !important; animation: slide 1.4s ease-in-out infinite; }
@keyframes slide { 0% { transform: translateX(-100%); } 100% { transform: translateX(300%); } }
.track .state { font-size: 15px; margin-top: 8px; color: var(--ink-2); }
.track .state.err { color: var(--warn); }
.confirm { display: flex; gap: 8px; margin-top: 10px; }
.confirm .btn { flex: 1; }
.btn.danger { background: #c0262d; color: #fff; }

.foot { color: var(--ink-2); font-size: 13px; text-align: center; margin-top: 36px; }

@media (max-width: 380px) {
  .seg button, .chip, .grid2 button { font-size: 15px; }
}
@media (max-width: 359px) {
  main { padding: 8px 12px 40px; }
  .card { padding: 16px 12px; }
  .seg button, .chip, .grid2 button { font-size: 14px; padding: 8px 6px; }
  .engine { padding: 6px 10px; font-size: 13px; }
  .brand { font-size: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

.presets { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.chip.preset { font-family: inherit; }
.small-label { font-size: 14px; color: var(--ink-2); font-weight: 600; margin: 12px 2px 6px; }