/* app.css — retro 80s/90s "hardware panel" look, LIGHT scheme:
   warm paper background, raised light bevels (Win95/classic-Mac feel),
   pastel-neon accents. Hard edges only — no rounded corners. */

:root {
  --bg: #ecebe3;
  --panel: #f8f7f2;
  --panel-2: #e7e5da;
  --ink: #241f33;
  --muted: #6c6682;
  --line: #c9c5b8;
  --neon: #d6006e;   /* magenta */
  --cyan: #0a7ea4;   /* teal    */
  --acid: #5f7d00;   /* olive-lime (level bars) */
  --amber: #c77800;
  --bevel-lt: #ffffff;   /* top-left highlight */
  --bevel-dk: #b3ae9d;   /* bottom-right shadow */
  --edge: #8f8a79;       /* hard outline */
  --pad-off: #edece4;
  --grid: 4;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background:
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(0,0,0,.012) 3px 4px),
    radial-gradient(1200px 700px at 50% -10%, #fbf4e9 0%, var(--bg) 55%);
  color: var(--ink);
  font-family: "Courier New", ui-monospace, monospace;
  letter-spacing: .01em;
  min-height: 100vh;
}

/* ---- chunky beveled surface used everywhere (raised, light) ---- */
.bevel {
  background: var(--panel);
  border: 2px solid var(--edge);
  box-shadow: inset 2px 2px 0 var(--bevel-lt), inset -2px -2px 0 var(--bevel-dk), 4px 4px 0 rgba(0,0,0,.14);
}

/* ---- top bar / page identity ---- */
header.topbar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 14px 20px; margin: 16px;
  background: linear-gradient(90deg, #ffffff, var(--panel-2));
  border: 2px solid var(--edge);
  box-shadow: inset 2px 2px 0 var(--bevel-lt), inset -2px -2px 0 var(--bevel-dk);
}
.logo {
  font-weight: 700; font-size: 20px; text-transform: uppercase; letter-spacing: .12em;
  color: var(--ink); text-shadow: 2px 2px 0 #ffb3d9;
  white-space: nowrap;
}
.logo b { color: var(--neon); }
.pageflag {
  font-size: 11px; text-transform: uppercase; letter-spacing: .2em;
  padding: 5px 12px; background: var(--neon); color: #fff; font-weight: 700;
  border: 2px solid var(--edge);
}
.tagline { font-size: 11px; color: var(--muted); letter-spacing: .06em; }
nav.tabs { margin-left: auto; display: flex; gap: 8px; }
nav.tabs a {
  text-decoration: none; color: var(--ink); font-weight: 700; font-size: 12px;
  text-transform: uppercase; letter-spacing: .12em; padding: 8px 14px;
  background: var(--panel); border: 2px solid var(--edge);
  box-shadow: inset 1px 1px 0 var(--bevel-lt), inset -1px -1px 0 var(--bevel-dk);
  min-width: 104px; display: inline-flex; align-items: center; justify-content: center; gap: 5px;
}
nav.tabs a.active { background: var(--cyan); color: #fff; }
nav.tabs a:hover { color: var(--neon); }
nav.tabs a.active:hover { color: #fff; }

/* ---- explainer strip (make clear what is what) ---- */
.explain {
  margin: 0 16px; padding: 10px 16px; display: flex; gap: 12px; flex-wrap: wrap; align-items: center;
  background: #fff8fb; border: 2px solid var(--edge); font-size: 12px; color: var(--ink);
  box-shadow: inset 2px 2px 0 var(--bevel-lt), inset -2px -2px 0 var(--bevel-dk);
}
.explain b { color: var(--neon); }
.steps { display: flex; gap: 8px; flex-wrap: wrap; margin-left: auto; }
.step { display: inline-flex; align-items: center; gap: 6px; font-size: 11px; text-transform: uppercase;
  letter-spacing: .06em; color: var(--muted); }
.step i { font-style: normal; width: 18px; height: 18px; display: grid; place-items: center;
  background: var(--cyan); color: #fff; font-weight: 700; border: 1px solid var(--edge); }

main { padding: 12px 16px 60px; display: grid; gap: 16px; }
@media (min-width: 940px) { main.two-col { grid-template-columns: minmax(0,1fr) 340px; align-items: start; } }

section.panel { padding: 16px; }
h2.blk { margin: 0 0 6px; font-size: 13px; text-transform: uppercase; letter-spacing: .16em; color: var(--cyan);
  border-bottom: 2px dashed var(--line); padding-bottom: 8px; }
h2.blk small { color: var(--muted); letter-spacing: .04em; font-weight: 400; text-transform: none; }
.subhead { font-size: 11px; color: var(--muted); margin: 0 0 12px; letter-spacing: .03em; }

/* ---- pad grid ---- */
.pads {
  display: grid; grid-template-columns: repeat(var(--grid), 1fr); gap: 12px;
  aspect-ratio: var(--grid) / var(--grid); max-width: 620px;
}
.pad {
  position: relative; aspect-ratio: 1/1; cursor: pointer; user-select: none;
  touch-action: manipulation; -webkit-touch-callout: none; -webkit-user-select: none;
  background: var(--pad-off); border: 2px solid var(--edge);
  box-shadow: inset 2px 2px 0 var(--bevel-lt), inset -3px -3px 0 var(--bevel-dk);
  display: flex; flex-direction: column; justify-content: space-between; padding: 8px;
  transition: transform .04s, box-shadow .04s;
}
.pad.filled { background: linear-gradient(160deg, #ffe3f1, #ffd0e6); box-shadow: inset 2px 2px 0 #fff, inset -3px -3px 0 var(--bevel-dk), 0 0 0 2px #ff9dcb inset; }
.pad.sel { outline: 3px solid var(--cyan); outline-offset: -3px; }
.pad.hit { transform: translate(2px,2px); box-shadow: inset 3px 3px 0 var(--bevel-dk); }
.pad.dragover { outline: 3px dashed var(--amber); outline-offset: -6px; }
.pad .kbd { align-self: flex-end; font-size: 11px; font-weight: 700; color: #fff; background: var(--cyan);
  padding: 1px 6px; border: 1px solid var(--edge); min-width: 20px; text-align: center; }
.pad .name { font-size: 12px; font-weight: 700; word-break: break-all; color: var(--ink); line-height: 1.15; }
.pad .num { position: absolute; top: 6px; left: 8px; font-size: 10px; color: var(--muted); }
.pad.empty .name { color: var(--muted); font-weight: 400; }
.pad .lvl { position: absolute; left: 0; bottom: 0; height: 3px; background: var(--acid); }
.pad .layers { position: absolute; bottom: 8px; right: 8px; font-size: 10px; font-weight: 700; color: #fff;
  background: var(--amber); border: 1px solid var(--edge); padding: 0 4px; }
.mini { font-size: 11px; padding: 2px 7px; letter-spacing: 0; }
.mini.x { color: var(--neon); }
.list .item .mini { flex: none; }

/* step sequencer */
.steps { display: grid; grid-template-columns: repeat(16, 1fr); gap: 4px; margin-top: 12px; }
.step-cell { height: 24px; background: var(--panel-2); border: 2px solid var(--edge);
  box-shadow: inset 1px 1px 0 var(--bevel-lt); }
.step-cell.beat { border-color: var(--muted); }
.step-cell.has { background: var(--cyan); }
.step-cell.on { background: var(--neon); box-shadow: 0 0 8px var(--neon); }
.seq input[type=range] { width: 96px; }
@media (max-width: 600px) { .steps { grid-template-columns: repeat(8, 1fr); } }

/* continuous loop bar */
.loopbar { position: relative; height: 44px; margin-top: 12px; background: #14121d; overflow: hidden;
  border: 2px solid var(--edge); box-shadow: inset 2px 2px 0 var(--bevel-dk); }
.loopbar .playhead { position: absolute; top: 0; bottom: 0; left: 0; width: 2px; background: var(--acid);
  box-shadow: 0 0 8px var(--acid); }
.loopbar .beat { position: absolute; top: 0; bottom: 0; width: 1px; background: rgba(255,255,255,.10); }
.loopbar .mark { position: absolute; top: 50%; transform: translate(-50%, -50%); width: 9px; height: 9px;
  background: var(--neon); border: 1px solid #fff; }

/* right-click pad menu */
.ctxmenu { position: fixed; z-index: 60; min-width: 190px; background: var(--panel);
  border: 2px solid var(--edge); box-shadow: 4px 4px 0 rgba(0,0,0,.25), inset 1px 1px 0 var(--bevel-lt);
  display: flex; flex-direction: column; padding: 4px; }
.ctxmenu .ctxhead { font-size: 10px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted);
  padding: 4px 8px; border-bottom: 1px dashed var(--line); margin-bottom: 4px; }
.ctxmenu button { text-align: left; border: none; box-shadow: none; background: transparent; padding: 7px 9px;
  text-transform: none; letter-spacing: 0; font-weight: 400; }
.ctxmenu button:hover { background: var(--cyan); color: #fff; }
.ctxmenu button:disabled { opacity: .35; }

/* modal (cut / trim editor) */
.modal { position: fixed; inset: 0; background: rgba(20,18,30,.55); display: flex; align-items: center;
  justify-content: center; z-index: 70; padding: 16px; }
.modal-box { background: var(--panel); padding: 18px; max-width: 680px; width: 100%; max-height: 90vh; overflow: auto; }

/* phones / small tablets */
@media (max-width: 560px) {
  header.topbar { padding: 10px 12px; gap: 10px; margin: 10px; }
  .logo { font-size: 17px; }
  nav.tabs { width: 100%; }
  nav.tabs a { flex: 1; min-width: 0; padding: 9px 4px; letter-spacing: .06em; }
  .explain { margin: 0 10px; }
  main { padding: 0 10px 40px; }
  section.panel { padding: 12px; }
  .pads { gap: 8px; }
  .pad { padding: 6px; }
  .pad .name { font-size: 11px; }
  .row { gap: 8px; }
  .ctxmenu { min-width: 210px; }
  .ctxmenu button { padding: 11px 10px; }
  .pe-row { flex-wrap: wrap; }
}

/* mobile tabbed view (Pads / Layers / Samples) — desktop keeps everything */
.mtabs { display: none; gap: 6px; }
.mtabs button { flex: 1; }
.mtabs button.on { background: var(--neon); color: #fff; }
@media (max-width: 760px) {
  .mtabs { display: flex; position: sticky; top: 0; z-index: 40; margin: 0 10px 12px; }
  main.two-col { display: block; }
  main[data-mtab] aside { display: block; }
  main[data-mtab] [data-tab] { display: none !important; }
  main[data-mtab="pads"] [data-tab="pads"] { display: block !important; }
  main[data-mtab="layers"] [data-tab="layers"] { display: block !important; }
  main[data-mtab="samples"] [data-tab="samples"] { display: grid !important; gap: 16px; }
}
#trimWave, #sliceWave { width: 100%; height: 150px; display: block; border: 2px solid var(--edge);
  box-shadow: inset 2px 2px 0 var(--bevel-dk); }
.pe-row { display: flex; align-items: center; gap: 10px; padding: 8px; border: 1px solid var(--line);
  background: var(--panel-2); margin-bottom: 6px; }
.pe-row .pe-name { font-weight: 700; font-size: 12px; min-width: 90px; }
.pe-row .pe-vol { flex: 1; accent-color: var(--neon); }
.pe-row .pe-val { min-width: 28px; text-align: right; font-weight: 700; font-size: 12px; }

/* ---- buttons / controls ---- */
button, .btn {
  font-family: inherit; font-weight: 700; font-size: 12px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--ink); background: var(--panel); border: 2px solid var(--edge); cursor: pointer;
  padding: 10px 14px; box-shadow: inset 1px 1px 0 var(--bevel-lt), inset -2px -2px 0 var(--bevel-dk);
}
button:hover, .btn:hover { color: var(--neon); }
button:active, .btn:active { box-shadow: inset 2px 2px 0 var(--bevel-dk); transform: translate(1px,1px); }
button.primary { background: var(--neon); color: #fff; border-color: var(--edge); }
button.primary:hover { color: #fff; filter: brightness(1.08); }
button.ghost { background: var(--panel-2); }
button:disabled { opacity: .45; cursor: not-allowed; }

.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.spacer { flex: 1; }
label.field { display: flex; flex-direction: column; gap: 4px; font-size: 11px; color: var(--muted);
  text-transform: uppercase; letter-spacing: .08em; }
input[type=text], input[type=number], select {
  font-family: inherit; background: #fffdf8; color: var(--ink); border: 2px solid var(--edge);
  padding: 8px; box-shadow: inset 2px 2px 0 var(--bevel-dk);
}
input[type=range] { accent-color: var(--neon); }

.toggle { display: inline-flex; border: 2px solid var(--edge); box-shadow: inset 1px 1px 0 var(--bevel-lt); }
.toggle button { border: none; box-shadow: none; background: var(--panel); }
.toggle button.on { background: var(--cyan); color: #fff; }

.chk { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; color: var(--ink);
  text-transform: uppercase; letter-spacing: .06em; }

.hint { font-size: 12px; color: var(--muted); line-height: 1.55; }
.hint code, code { color: var(--neon); background: #fff0f7; padding: 0 3px; border: 1px solid #f0c8dd; }
.tag { display: inline-block; font-size: 10px; letter-spacing: .1em; text-transform: uppercase;
  background: var(--panel-2); border: 1px solid var(--line); color: var(--cyan); padding: 2px 6px; }

/* dropzone */
.drop { border: 3px dashed var(--line); padding: 20px; text-align: center; color: var(--muted);
  font-size: 12px; text-transform: uppercase; letter-spacing: .08em; background: #fffdf8; }
.drop.dragover { border-color: var(--amber); color: var(--amber); background: #fff6e8; }
.drop b { color: var(--ink); }

/* toast */
#toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: var(--cyan); color: #fff; font-weight: 700; padding: 12px 20px; text-transform: uppercase;
  letter-spacing: .08em; border: 2px solid var(--edge); box-shadow: 4px 4px 0 rgba(0,0,0,.2); display: none; z-index: 50; }
#toast.err { background: var(--neon); color: #fff; }

.list { display: flex; flex-direction: column; gap: 6px; max-height: 320px; overflow: auto; }
.list .item { display: flex; align-items: center; gap: 8px; font-size: 12px; padding: 6px 8px;
  background: var(--panel); border: 1px solid var(--line); cursor: grab; }
.list .item:hover { border-color: var(--cyan); background: #fff; }
.list .item .sz { margin-left: auto; color: var(--muted); font-size: 10px; }

/* ---- home / landing ---- */
.hero { display: grid; gap: 24px; align-items: center; padding: 6px 4px; }
@media (min-width: 860px) { .hero { grid-template-columns: 1.1fr 1fr; } }
.hero h1 { font-size: clamp(28px, 4.5vw, 46px); line-height: 1.04; margin: 0 0 14px; text-transform: uppercase; letter-spacing: .03em; text-shadow: 2px 2px 0 #ffcfe6; }
.hero h1 span { color: var(--neon); }
.hero p.lead { font-size: 15px; line-height: 1.6; color: var(--ink); margin: 0 0 20px; max-width: 54ch; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.cta a { text-decoration: none; }
.btn.big { font-size: 14px; padding: 14px 22px; display: inline-block; }
.hero-art { display: flex; justify-content: center; align-items: center; padding: 8px; }
.device { width: 100%; max-width: 440px; height: auto; filter: drop-shadow(6px 8px 0 rgba(0,0,0,.16)); }
.section-title { text-align: center; text-transform: uppercase; letter-spacing: .24em; color: var(--muted); font-size: 12px; margin: 30px 0 2px; }
.cards { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card { padding: 16px; }
.card .ic { font-size: 26px; line-height: 1; }
.card h3 { margin: 10px 0 6px; font-size: 12.5px; text-transform: uppercase; letter-spacing: .1em; color: var(--cyan); }
.card p { margin: 0; font-size: 12.5px; line-height: 1.55; color: var(--muted); }
.card p b { color: var(--ink); }
.howto { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.howto .st { padding: 16px; display: flex; gap: 12px; align-items: flex-start; }
.howto .st .n { flex: none; width: 30px; height: 30px; display: grid; place-items: center; background: var(--neon);
  color: #fff; font-weight: 700; border: 2px solid var(--edge); }
.howto .st div p { margin: 4px 0 0; font-size: 12px; color: var(--muted); line-height: 1.5; }
.howto .st div b { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink); }

footer.foot { text-align: center; color: var(--muted); font-size: 11px; padding: 24px; letter-spacing: .08em; }
a { color: var(--cyan); }
.blink { animation: bl 1s steps(2) infinite; color: var(--neon); } @keyframes bl { 50% { opacity: 0; } }