/* styles.css — Fart Sound Generator */

:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel2: #1c232c;
  --ink: #e6edf3;
  --muted: #9aa7b4;
  --line: #2a323c;
  --accent: #6ee7b7;
  --accent2: #f4b942;
  --wave: #6ee7b7;
  --ok: #6ee7b7;
  --warn: #f4b942;
  --danger: #f87171;
  --radius: 12px;
}

:root[data-theme="light"] {
  --bg: #f7f9fb;
  --panel: #ffffff;
  --panel2: #eef2f6;
  --ink: #16202a;
  --muted: #5b6875;
  --line: #d8e0e8;
  --accent: #0f9d68;
  --accent2: #b47407;
  --wave: #0f9d68;
  --ok: #0f9d68;
  --warn: #b47407;
  --danger: #c0392b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

main { max-width: 1040px; margin: 0 auto; padding: 0 20px 64px; }

.hidden { display: none !important; }

/* ---- header ---- */
.topbar {
  display: flex; flex-wrap: wrap; gap: 12px;
  align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid var(--line);
  background: var(--panel);
}
.brand { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.backlink { color: var(--muted); text-decoration: none; }
.backlink:hover { color: var(--ink); }
.sep { color: var(--line); }
.freechip {
  font-size: 12px; padding: 3px 10px; border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
}
.topactions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.who { font-size: 13px; color: var(--muted); }

button { font: inherit; cursor: pointer; }
.ghost {
  background: transparent; color: var(--ink);
  border: 1px solid var(--line); border-radius: 8px; padding: 7px 12px;
}
.ghost:hover { border-color: var(--accent); color: var(--accent); }
.ghost.danger:hover { border-color: var(--danger); color: var(--danger); }
.primary {
  background: var(--accent); color: #06231a; font-weight: 650;
  border: none; border-radius: 8px; padding: 9px 16px;
}
:root[data-theme="light"] .primary { color: #ffffff; }
.primary:hover { filter: brightness(1.08); }
button:disabled { opacity: 0.45; cursor: not-allowed; }

/* ---- hero ---- */
.hero { padding: 40px 0 16px; }
h1 { font-size: clamp(30px, 5vw, 46px); margin: 0 0 12px; letter-spacing: -0.02em; }
.lede { color: var(--muted); max-width: 62ch; font-size: 17px; margin: 0; }

/* ---- stage ---- */
.stage {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px; margin: 20px 0;
}
.stagetop { display: flex; gap: 20px; align-items: stretch; flex-wrap: wrap; }
.bigparp {
  flex: 0 0 auto; width: 168px; min-height: 168px;
  border-radius: 20px; border: none;
  background: linear-gradient(160deg, var(--accent), var(--accent2));
  color: #06231a; font-size: 30px; font-weight: 750; letter-spacing: -0.01em;
}
.bigparp:hover { filter: brightness(1.06); }
.bigparp:active { transform: translateY(2px); }
.stagemeta { flex: 1 1 320px; min-width: 260px; display: flex; flex-direction: column; gap: 10px; }
.wave {
  width: 100%; height: 150px; display: block;
  background: var(--panel2); border: 1px solid var(--line); border-radius: 10px;
}
.audiostate { margin: 0; font-size: 13px; color: var(--muted); }
.audiostate.asleep { color: var(--warn); }
.audiostate.unsupported { color: var(--danger); }
.audiostate.ready { color: var(--accent); }

.notice {
  margin: 14px 0 0; padding: 10px 12px; border-radius: 8px; font-size: 14px;
  background: var(--panel2); border-left: 3px solid var(--muted);
}
.notice.warn { border-left-color: var(--warn); }
.notice.ok { border-left-color: var(--ok); }
.notice.info { border-left-color: var(--accent); }

.reportrow { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 18px; }
.report {
  flex: 1 1 300px; margin: 0;
  display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; font-size: 14px;
}
.report dt { color: var(--muted); }
.report dd { margin: 0; }
.codebox { flex: 1 1 320px; }
.codebox label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.coderow { display: flex; gap: 8px; flex-wrap: wrap; }
.coderow input { flex: 1 1 200px; }

input[type="text"], input[type="file"] {
  background: var(--panel2); color: var(--ink);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font: inherit;
}
input[type="text"]:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.hint { font-size: 13px; color: var(--muted); margin: 8px 0 0; }
.sub { color: var(--muted); margin: 0 0 14px; }

/* ---- panels ---- */
.panel {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px; margin: 20px 0;
}
.panel h2 { margin: 0 0 6px; font-size: 20px; }
.panel h3 { margin: 22px 0 8px; font-size: 15px; color: var(--muted); }

.engines { border: 1px solid var(--line); border-radius: 10px; padding: 12px; margin: 0 0 12px; }
.engines legend { padding: 0 6px; font-size: 13px; color: var(--muted); }
.engopt { display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; padding: 6px 0; align-items: start; }
.engopt input { margin-top: 6px; }
.engname { font-weight: 650; }
.engblurb { grid-column: 2; font-size: 13px; color: var(--muted); }
.engdetail { font-size: 13px; color: var(--muted); margin: 0 0 18px; max-width: 74ch; }

.sliders { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.ctl label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.ctl output { color: var(--accent); font-variant-numeric: tabular-nums; }
.ctl .help { font-size: 12px; color: var(--muted); margin: 6px 0 0; }
.ctl.disabledctl { opacity: 0.55; }
.limitnote {
  font-size: 12px; margin: 8px 0 0; padding: 8px 10px;
  border-left: 3px solid var(--warn); background: var(--panel2); border-radius: 6px;
}
input[type="range"] { width: 100%; accent-color: var(--accent); }

.actionrow {
  display: flex; gap: 16px; align-items: center; flex-wrap: wrap;
  margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line);
}
.seedwrap, .volwrap, .checkwrap { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.seedwrap input { width: 150px; }
.volwrap input { width: 120px; }

/* ---- chips ---- */
.presets { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  flex: 1 1 220px; max-width: 320px; text-align: left;
  background: var(--panel2); border: 1px solid var(--line);
  border-radius: 10px; padding: 10px 12px; color: var(--ink);
}
.chip:hover { border-color: var(--accent); }
.chip strong { display: block; font-size: 14px; }
.chip span { display: block; font-size: 12px; color: var(--muted); margin-top: 3px; }

/* ---- export ---- */
.exportrow { display: flex; gap: 10px; flex-wrap: wrap; }
.dropzone {
  margin-top: 16px; padding: 18px; text-align: center;
  border: 1px dashed var(--line); border-radius: 10px; color: var(--muted); font-size: 14px;
}
.dropzone p { margin: 4px 0; }
.dropzone.dragging { border-color: var(--accent); background: var(--panel2); }
.filebtn { display: inline-block; cursor: pointer; }
.filebtn input { display: block; margin: 8px auto 0; max-width: 240px; }

/* ---- shelf ---- */
.saverow, .shelfhead { display: flex; gap: 12px; align-items: end; flex-wrap: wrap; margin-bottom: 12px; }
.grow { flex: 1 1 200px; font-size: 13px; color: var(--muted); display: flex; flex-direction: column; gap: 6px; }
.shelf { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 10px; }
.shelfitem { background: var(--panel2); border: 1px solid var(--line); border-radius: 10px; padding: 12px; }
.shelfhead2 { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.tag { font-size: 12px; color: var(--muted); }
.shelfnote { font-size: 13px; color: var(--muted); margin: 6px 0; }
.shelfacts { display: flex; gap: 8px; margin-top: 8px; }
.empty { color: var(--muted); font-size: 14px; }

.costpanel .report { font-size: 14px; }

/* ---- footer ---- */
.foot {
  border-top: 1px solid var(--line); padding: 22px 20px 40px;
  text-align: center; color: var(--muted); font-size: 14px;
}
.foot a { color: var(--muted); }
.foot a:hover { color: var(--accent); }
.fine { font-size: 12px; max-width: 70ch; margin: 8px auto 0; }

@media (max-width: 640px) {
  .stagetop { flex-direction: column; }
  .bigparp { width: 100%; min-height: 110px; }
}