/* song.css — Song Maker.
   Dark working surface for the grid, warm ManyHand chrome around it. */

:root{
  --cream:#faf5ec; --paper:#fffdf8; --ink:#221a12; --inksoft:#6f6152;
  --brand:#0e386d; --brand2:#0b7d74; --branddeep:#0a5f57; --line:#e8ddc9;

  --pnl:#151922; --pnl2:#1c212c; --pnl3:#252c39; --edge:#333b4b; --edge2:#414b60;
  --text:#eef1f7; --dim:#98a1b2;
  --mel:#4fa8ff; --drm:#ffb62e; --chd:#a97bff; --bas:#39d98a; --hot:#ff6b6b;
  --radius:14px;
}

*{ box-sizing:border-box; margin:0; padding:0; -webkit-tap-highlight-color:transparent; }
html,body{ height:100%; }
body{ font-family:"Hanken Grotesk",system-ui,-apple-system,sans-serif;
  background:var(--cream); color:var(--ink); line-height:1.5;
  display:flex; flex-direction:column; min-height:100%; }

header.site{ display:flex; align-items:center; justify-content:space-between; padding:12px 18px;
  border-bottom:1.5px solid var(--line); background:var(--paper); }
header.site .brand{ font-family:"Fraunces",Georgia,serif; font-weight:900; font-size:20px;
  letter-spacing:-.02em; color:var(--brand); text-decoration:none; display:flex; align-items:center; gap:8px; }
header.site .brand span{ color:var(--brand2); }
header.site .back{ font-size:13px; font-weight:700; color:var(--brand); text-decoration:none; }

main{ width:100%; max-width:1120px; margin:0 auto; padding:20px 14px calc(36px + env(safe-area-inset-bottom)); }
h1.title{ font-family:"Fraunces",Georgia,serif; font-weight:900; font-size:30px; text-align:center; margin:2px 0; }
.sub{ text-align:center; color:var(--inksoft); font-size:15px; margin-bottom:18px; }
.hidden{ display:none !important; }

/* --------------------------------------------------------------- the studio */
.studio{ background:linear-gradient(180deg,var(--pnl2),var(--pnl));
  border:1.5px solid #0a0d13; border-radius:18px; padding:14px; color:var(--text);
  box-shadow:0 24px 54px -28px rgba(10,12,17,.85), inset 0 1px 0 rgba(255,255,255,.05); }

/* transport */
.bar{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin-bottom:12px; }
.big{ font:inherit; font-size:20px; font-weight:800; cursor:pointer; width:56px; height:48px;
  border-radius:12px; background:var(--drm); border:1px solid var(--drm); color:#241a06; }
.big.on{ background:var(--hot); border-color:var(--hot); color:#2a0b0b; }
.act{ font:inherit; font-size:14px; font-weight:800; cursor:pointer; padding:11px 16px; border-radius:12px;
  background:var(--pnl3); border:1px solid var(--edge2); color:var(--text); display:inline-flex; align-items:center; gap:7px; }
.act:hover{ background:var(--edge); }
.act.hero{ background:var(--mel); border-color:var(--mel); color:#04213f; }
.act.go{ background:var(--bas); border-color:var(--bas); color:#052015; margin-left:auto; }
.act:disabled{ opacity:.55; cursor:default; }

.fld{ display:flex; flex-direction:column; gap:3px; font-size:10px; font-weight:800;
  letter-spacing:.11em; text-transform:uppercase; color:var(--dim); }
.fld select, .fld input[type=range]{ font:inherit; font-size:13px; font-weight:600;
  text-transform:none; letter-spacing:0; }
.fld select{ padding:8px 9px; border-radius:10px; background:var(--pnl3);
  border:1px solid var(--edge2); color:var(--text); }
.fld input[type=range]{ width:118px; accent-color:var(--drm); }
.tempoval{ font-size:12px; font-weight:800; color:var(--text); font-variant-numeric:tabular-nums; }

/* --------------------------------------------------------------- chord strip */
.chords{ display:grid; grid-template-columns:repeat(4,1fr); gap:8px; margin-bottom:12px; }
.chip{ font:inherit; font-size:19px; font-weight:800; cursor:pointer; padding:10px 6px; border-radius:12px;
  background:var(--pnl3); border:1.5px solid var(--edge2); color:var(--chd); line-height:1.1; }
.chip small{ display:block; font-size:9.5px; font-weight:800; letter-spacing:.1em;
  text-transform:uppercase; color:var(--dim); margin-bottom:2px; }
.chip:hover{ background:var(--edge); }
.chip.now{ border-color:var(--chd); box-shadow:0 0 0 2px rgba(169,123,255,.28); }

/* --------------------------------------------------------------------- grid */
.gridwrap{ overflow-x:auto; border:1px solid var(--edge); border-radius:12px;
  background:#0f131a; padding:8px; }
.lane + .lane{ margin-top:10px; padding-top:9px; border-top:1px solid var(--edge); }
.lane-title{ font-size:10px; font-weight:800; letter-spacing:.13em; text-transform:uppercase;
  margin-bottom:5px; }
.lane-title.mel{ color:var(--mel); }
.lane-title.drm{ color:var(--drm); }

.row{ display:flex; align-items:center; gap:2px; margin-bottom:2px; min-width:max-content; }
.rlab{ flex:none; width:46px; font-size:10px; font-weight:700; color:var(--dim);
  text-align:right; padding-right:6px; font-variant-numeric:tabular-nums; }

.cell{ flex:none; width:22px; height:16px; padding:0; cursor:pointer; border-radius:3px;
  background:var(--pnl2); border:1px solid transparent; }
.cell.altbar{ background:#1a1f2a; }
.cell.barline{ border-left:2px solid var(--edge2); border-top-left-radius:0; border-bottom-left-radius:0; }
.cell:hover{ background:var(--pnl3); }
.row-melody .cell.on{ background:var(--mel); border-color:#9cccff; }
.row-beat .cell.on{ background:var(--drm); border-color:#ffd88a; }
.cell.now{ box-shadow:inset 0 0 0 1px rgba(255,255,255,.45); }
.cell.on.now{ filter:brightness(1.25); }

/* ------------------------------------------------- sections & running order */
.sections{ display:flex; flex-direction:column; gap:7px; margin-bottom:12px; }
.secline{ display:flex; align-items:center; gap:9px; flex-wrap:wrap; }
.seclab{ font-size:10px; font-weight:800; letter-spacing:.11em; text-transform:uppercase;
  color:var(--dim); min-width:92px; }
.tabs, .arrange{ display:flex; gap:5px; flex-wrap:wrap; align-items:center; }

.tab{ font:inherit; font-size:14px; font-weight:800; cursor:pointer; width:34px; height:32px;
  border-radius:9px; background:var(--pnl3); border:1px solid var(--edge2); color:var(--text); }
.tab:hover{ background:var(--edge); }
.tab.on{ background:var(--mel); border-color:var(--mel); color:#04213f; }
.tab.add{ color:var(--dim); font-size:17px; }

.slot{ font:inherit; font-size:13px; font-weight:800; cursor:pointer; width:32px; height:30px;
  border-radius:8px; background:var(--pnl2); border:1px solid var(--edge2); color:var(--text); }
.slot:hover{ background:var(--pnl3); }
.slot[data-pattern="1"]{ color:var(--chd); }
.slot[data-pattern="2"]{ color:var(--bas); }
.slot[data-pattern="3"]{ color:var(--drm); }
.slot.now{ border-color:var(--drm); box-shadow:0 0 0 2px rgba(255,182,46,.3); }
.slot-actions{ display:inline-flex; gap:4px; margin-left:4px; }
.mini{ font:inherit; font-size:14px; font-weight:800; cursor:pointer; width:26px; height:26px;
  border-radius:7px; background:transparent; border:1px dashed var(--edge2); color:var(--dim); }
.mini:hover{ color:var(--text); border-style:solid; }
.lengthval{ font-size:11.5px; font-weight:700; color:var(--dim); font-variant-numeric:tabular-nums; }
.act.small{ font-size:12px; padding:7px 11px; }
.act.small b{ color:var(--mel); }

/* ------------------------------------------------------------------- mixer */
.mixer{ display:grid; grid-template-columns:repeat(4,1fr); gap:8px; margin-top:12px; }
.strip{ display:flex; flex-direction:column; gap:5px; background:var(--pnl2);
  border:1px solid var(--edge); border-radius:11px; padding:8px; }
.mute{ font:inherit; font-size:12px; font-weight:800; cursor:pointer; padding:6px 8px;
  border-radius:8px; background:var(--pnl3); border:1px solid var(--edge2); color:var(--text); }
.mute.off{ opacity:.4; text-decoration:line-through; }
.mute[data-part="beat"]{ color:var(--drm); }
.mute[data-part="bass"]{ color:var(--bas); }
.mute[data-part="chords"]{ color:var(--chd); }
.mute[data-part="melody"]{ color:var(--mel); }
.inst{ font:inherit; font-size:12px; font-weight:600; padding:5px 6px; border-radius:8px;
  background:var(--pnl3); border:1px solid var(--edge2); color:var(--text); width:100%; }
.vol{ width:100%; accent-color:var(--dim); height:18px; }

.scalenote{ font-size:12px; color:var(--dim); margin-top:11px; line-height:1.45; text-align:center; }
.msg{ text-align:center; font-size:12.5px; font-weight:700; color:var(--bas); min-height:18px; margin-top:8px; }
.prog{ height:5px; border-radius:3px; background:var(--pnl3); border:1px solid var(--edge2);
  overflow:hidden; margin-top:9px; }
.prog .fill{ height:100%; width:0; background:var(--bas); transition:width .12s linear; }

/* -------------------------------------------------------------------- text */
.panel{ background:var(--paper); border:1.5px solid var(--line); border-radius:var(--radius);
  padding:18px; margin-top:18px; box-shadow:0 8px 24px -18px rgba(34,26,18,.5); }
.step-label{ font-size:12px; font-weight:800; letter-spacing:.14em; text-transform:uppercase;
  color:var(--branddeep); margin:0 0 10px; }
.panel h2{ font-family:"Fraunces",Georgia,serif; font-size:20px; margin:0 0 8px; }
.panel p{ color:var(--inksoft); font-size:14.5px; margin-bottom:10px; }
.panel a{ color:var(--brand); font-weight:700; }
details{ border-top:1.5px solid var(--line); padding:11px 0; }
details:last-of-type{ border-bottom:1.5px solid var(--line); }
details summary{ cursor:pointer; font-weight:700; font-size:14.5px; }
details p{ margin-top:6px; font-size:14px; }

footer{ text-align:center; color:var(--inksoft); font-size:13px; padding:24px 16px 30px; margin-top:auto; }
footer a{ color:var(--brand); }

/* ------------------------------------------------------------------- small */
@media (max-width:700px){
  main{ padding:14px 8px calc(30px + env(safe-area-inset-bottom)); }
  h1.title{ font-size:24px; }
  .sub{ font-size:13.5px; margin-bottom:14px; }
  .studio{ padding:10px; border-radius:14px; }
  .act.go{ margin-left:0; }
  .cell{ width:19px; height:15px; }
  .rlab{ width:40px; font-size:9px; }
  .chip{ font-size:16px; }
  .fld input[type=range]{ width:96px; }
  .mixer{ grid-template-columns:1fr 1fr; }
  .seclab{ min-width:100%; }
}