/* Step tools: shared chrome and components, on top of /studio.css tokens.
   Same world as the marketing site: warm ground, ink type, white cards,
   black pill for "on", gradient pill only for a page's one primary action. */

body { background: var(--bg); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
body.k-wait main { visibility: hidden; }

/* ---------- top bar ---------- */
.k-head {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(247, 244, 239, 0.88);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid rgba(16, 16, 18, 0.07);
}
.k-top {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 10px 20px;
  padding-top: calc(10px + env(safe-area-inset-top, 0px));
}
.k-crumb { display: flex; align-items: center; gap: 8px; min-width: 0; font: 500 0.95rem var(--disp); color: var(--muted); }
.k-crumb a { color: var(--muted); text-decoration: none; white-space: nowrap; }
.k-crumb a:hover { color: var(--ink); }
.k-crumb .k-ptitle { font-family: var(--disp); color: var(--ink); overflow: hidden; text-overflow: ellipsis; max-width: 26ch; }
.k-crumb b { color: var(--ink); font-weight: 600; white-space: nowrap; }
.k-save { font-size: 0.82rem; color: var(--muted); white-space: nowrap; }
.k-save.dirty { color: var(--brand-deep); }
.k-save.err { color: #B3261E; }
.k-status { margin-left: auto; display: flex; align-items: center; gap: 8px; font: 500 0.85rem var(--disp); color: var(--muted); }
.k-status select, .k-select {
  font: 500 0.88rem var(--disp);
  color: var(--ink);
  background: var(--white);
  border: 1px solid rgba(16, 16, 18, 0.18);
  border-radius: 100px;
  padding: 6px 30px 6px 14px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23101012' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  cursor: pointer;
}

/* ---------- step rail ---------- */
.k-rail {
  display: flex;
  gap: 6px;
  padding: 10px 20px;
  overflow-x: auto;
  scrollbar-width: none;
  border-top: 1px solid rgba(16, 16, 18, 0.05);
}
.k-rail::-webkit-scrollbar { display: none; }
.k-step {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px 6px 8px;
  border-radius: 100px;
  text-decoration: none;
  color: var(--ink);
  font: 500 0.86rem var(--disp);
  border: 1px solid transparent;
}
.k-step:hover { background: var(--white); border-color: var(--line); }
.k-step .n { font-size: 0.74rem; font-weight: 600; color: var(--muted); font-variant-numeric: tabular-nums; min-width: 2ch; text-align: center; }
.k-step .d { width: 8px; height: 8px; border-radius: 50%; border: 1.5px solid #B5ADA1; }
.k-step.doing .d { background: var(--brand); border-color: var(--brand); }
.k-step.done .d { background: #1D7A3E; border-color: #1D7A3E; }
.k-step.here { background: var(--ink); color: #fff; }
.k-step.here .n { color: rgba(255, 255, 255, 0.6); }
.k-step.here .d { border-color: rgba(255, 255, 255, 0.7); }

/* ---------- page grid: work area + guide ---------- */
.tool {
  max-width: 1440px;
  margin: 0 auto;
  padding: 26px 20px 80px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 28px;
  align-items: start;
}
.tool.wide { grid-template-columns: minmax(0, 1fr); }
.work { min-width: 0; display: grid; gap: 18px; }
.work > header h1 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); margin: 0 0 6px; }
.work > header p { margin: 0; color: #3D3A36; max-width: 70ch; }

.guide {
  position: sticky;
  top: 130px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  font-size: 0.9rem;
  line-height: 1.55;
}
.guide h2 { font-size: 1rem; margin: 0 0 8px; }
.guide h3 { font: 600 0.74rem var(--disp); letter-spacing: 0.1em; text-transform: uppercase; color: var(--brand-deep); margin: 16px 0 6px; }
.guide ol, .guide ul { margin: 0; padding-left: 18px; }
.guide li { margin: 3px 0; }
.guide p { margin: 0; color: #3D3A36; }
.guide a { color: var(--brand-deep); }
.guide .loop { margin-top: 14px; padding: 10px 12px; background: var(--warm); border: 1px solid var(--warm-line); border-radius: 12px; font-size: 0.86rem; }

.k-next { display: flex; justify-content: space-between; gap: 12px; margin-top: 8px; }
.k-next .btn { text-decoration: none; }

/* ---------- cards + fields ---------- */
.box { position: relative; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; }
.box > h2 { font-size: 1.15rem; margin: 0 0 4px; }
.box > .hint, .hint { color: var(--muted); font-size: 0.86rem; margin: 0 0 14px; }
.box-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.box-head h2 { font-size: 1.15rem; margin: 0; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px 18px; }
.span2 { grid-column: span 2; }
.fld { display: grid; gap: 6px; align-content: start; font: 600 0.74rem var(--disp); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.fld small { font: 400 0.8rem var(--body); letter-spacing: 0; text-transform: none; color: var(--muted); }
.fld input, .fld textarea, .fld select, .inp {
  font: 400 0.96rem/1.5 var(--body);
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 9px 12px;
  width: 100%;
  resize: vertical;
}
.fld input:focus, .fld textarea:focus, .fld select:focus, .inp:focus { outline: 2px solid var(--brand); outline-offset: 1px; background: #fff; }
.cjk, .fld .cjk { font-family: var(--cjk); }
.seg2 { display: inline-flex; flex-wrap: wrap; background: var(--panel-2); border-radius: 100px; padding: 3px; gap: 2px; }
.seg2 button { border: 0; background: transparent; padding: 5px 13px; font-size: 0.86rem; }
.seg2 button.on { background: var(--ink); color: #fff; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips button { padding: 4px 12px; font-size: 0.84rem; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
.spacer { flex: 1; }
.btn { display: inline-flex; align-items: center; gap: 6px; text-decoration: none; }
.btn.on { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn.primary { color: #fff; }
.small { font-size: 0.82rem; padding: 5px 12px; }
.ghost { background: transparent; }
.danger:hover { border-color: #B3261E !important; color: #B3261E; }
.copy-out {
  font: 0.86rem/1.55 var(--mono);
  background: #101012;
  color: #EDE9E3;
  border-radius: 14px;
  padding: 14px 16px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  max-height: 320px;
  overflow: auto;
  margin: 0;
}
.mono { font-family: var(--mono); }
.ok-text { color: #1D7A3E; }
.warn-text { color: var(--brand-deep); }
.bad-text { color: #B3261E; }

/* ---------- drop zone + file list ---------- */
.k-drop {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 74px;
  padding: 14px;
  border: 1.5px dashed rgba(16, 16, 18, 0.2);
  border-radius: 14px;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
  cursor: pointer;
  overflow: hidden;
  transition: border-color .15s ease, background .15s ease;
}
.k-drop:hover, .k-drop.over { border-color: var(--brand); background: var(--brand-soft); color: var(--ink); }
.k-drop:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; }
.k-drop-prog { position: absolute; left: 0; right: 0; bottom: 0; height: 4px; background: var(--line); }
.k-drop-prog i { display: block; height: 100%; width: 0; background: var(--brand); transition: width .2s ease; }

.files { display: grid; gap: 8px; margin-top: 12px; }
.file {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 4px 14px;
  align-items: center;
  padding: 10px 12px 10px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}
.file.pick { border-color: var(--ink); box-shadow: 0 0 0 1px var(--ink); }
.file .ic { width: 34px; height: 34px; border-radius: 10px; background: var(--panel-2); display: grid; place-items: center; }
.file .ic svg { width: 17px; height: 17px; fill: none; stroke: var(--ink); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.file .nm { min-width: 0; }
.file .nm b { display: block; font: 600 0.92rem var(--disp); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file .nm span { font-size: 0.78rem; color: var(--muted); }
.file .acts { display: flex; gap: 6px; align-items: center; }
.file audio { grid-column: 1 / -1; width: 100%; height: 36px; }
.file .note-in { grid-column: 2 / -1; }
.tag { display: inline-block; font: 600 0.72rem var(--disp); letter-spacing: 0.04em; padding: 2px 9px; border-radius: 100px; background: var(--panel-2); color: var(--ink); }
.tag.brand { background: var(--brand); color: #fff; }
.tag.ink { background: var(--ink); color: #fff; }
.tag.ok { background: #E3F1E7; color: #1D5C33; }
.stars { display: inline-flex; gap: 0; }
.stars button { border: 0; background: transparent; padding: 2px 3px; font-size: 1.05rem; line-height: 1; color: #CFC7BA; }
.stars button.on { color: var(--brand); background: transparent; }
.empty-note { padding: 16px; border: 1.5px dashed var(--line); border-radius: 14px; color: var(--muted); font-size: 0.9rem; }

/* ---------- gate, conflict, toast, missing ---------- */
.k-gate { position: fixed; inset: 0; z-index: 80; display: grid; place-items: center; background: var(--bg); padding: 20px; }
.k-gate form { width: min(420px, 100%); display: grid; gap: 14px; justify-items: start; }
.k-gate h1 { font-size: 2.2rem; margin: 6px 0 0; }
.k-gate p { margin: 0; color: var(--muted); }
.k-gate input { width: 100%; font: inherit; padding: 11px 16px; border-radius: 100px; border: 1px solid var(--line); background: #fff; }
.k-err { color: #B3261E !important; font-size: 0.9rem; }
.k-conflict { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; padding: 10px 20px; background: #FDF0E6; border-bottom: 1px solid var(--warm-line); font-size: 0.92rem; }
.k-toast { position: fixed; left: 50%; bottom: calc(22px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); background: #101012; color: #fff; padding: 10px 20px; border-radius: 100px; font-size: 0.9rem; z-index: 90; max-width: calc(100vw - 32px); }
.k-missing { padding: 60px 0; display: grid; gap: 12px; justify-items: start; }

@media (max-width: 1100px) {
  .tool { grid-template-columns: minmax(0, 1fr); }
  .guide { position: static; }
}
@media (max-width: 720px) {
  .k-top { gap: 10px; padding-left: 16px; padding-right: 16px; }
  .k-crumb a:first-child, .k-crumb a:first-child + span, .k-save { display: none; }
  .k-status { font-size: 0; gap: 0; }
  .k-rail { padding: 8px 16px; }
  .tool { padding: 18px 16px 60px; }
  .grid2, .grid3 { grid-template-columns: 1fr; }
  .span2 { grid-column: auto; }
  .box { padding: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  .k-drop, .k-drop-prog i { transition: none; }
}

/* pass / warn / fail check lists (export, shot list craft check) */
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.checks li { display: grid; grid-template-columns: 22px minmax(0, 1fr) auto; gap: 12px; align-items: start; padding: 10px 12px; border-radius: 12px; background: var(--bg); }
.checks li .ic { width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; margin-top: 1px; }
.checks li .ic svg { width: 12px; height: 12px; fill: none; stroke: #fff; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.checks li.pass .ic { background: #1D7A3E; }
.checks li.warn .ic { background: #D97706; }
.checks li.fail .ic { background: #B3261E; }
.checks li b { font: 600 0.92rem var(--disp); display: block; }
.checks li span { font-size: 0.84rem; color: var(--muted); }
.checks li .jumps { display: flex; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }
.checks li .jumps button { font: 600 0.74rem var(--disp); font-variant-numeric: tabular-nums; padding: 2px 9px; }