/* ═══════════════════════════════════════════════════════════════════════
   Prepare for Notation — paper / two-tone system
   Ground : #f7f6f3  (warm paper white)
   Ink    : #1b1b1c  at 100 / 55 / 32 / 7 % alpha — no second hue, no decoration
   Type   : serif display (engraved-score feel) · system sans for controls/data
   Scale  : 13 / 15 / 18 / 28 · 4/8 spacing rhythm · 1px hairline rules
   ═══════════════════════════════════════════════════════════════════════ */
:root {
  --paper: #f7f6f3;
  --ink: #1b1b1c;
  --ink-1: rgba(27, 27, 28, 1);
  --ink-55: rgba(27, 27, 28, 0.55);
  --ink-32: rgba(27, 27, 28, 0.32);
  --ink-14: rgba(27, 27, 28, 0.14);
  --ink-7: rgba(27, 27, 28, 0.07);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: ui-sans-serif, system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink-1);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
}

/* ── Header ─────────────────────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  max-width: 720px;
  margin: 0 auto;
  padding: 28px 24px 20px;
}
.brand { display: flex; align-items: baseline; gap: 10px; min-width: 0; }
.brand .mark {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--ink-1);
  line-height: 1;
}
.wordmark {
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: 0.01em;
  color: var(--ink-1);
  white-space: nowrap;
}
.wordmark strong { font-weight: 600; }
.byline {
  font-size: 12px;
  color: var(--ink-32);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
/* ── Layout ─────────────────────────────────────────────────────────── */
.wrap { max-width: 720px; margin: 0 auto; padding: 8px 24px 72px; }
.rule { border: none; border-top: 1px solid var(--ink-14); margin: 24px 0 44px; }
.block { margin: 0; }
.block + .block { margin-top: 56px; }   /* air between the key section and the drop zone */
#batchCard .rule { margin: 56px 0 28px; }  /* extra air above "Batch" */

.hero { padding: 28px 0 0; }
h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}
h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 18px;
  letter-spacing: 0.01em;
  margin: 0;
}
.lede {
  font-size: 15px;
  color: var(--ink-55);
  max-width: 52ch;
  margin: 0;
}
code {
  font-family: var(--mono);
  font-size: 0.86em;
  color: var(--ink-1);
  background: var(--ink-7);
  padding: 1px 5px;
  border-radius: 2px;
}

/* ── Key row ────────────────────────────────────────────────────────── */
.keyrow { max-width: 460px; }
label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-55);
  margin-bottom: 8px;
}
.keyinput { display: flex; gap: 8px; }

input[type=password], input[type=text], input[type=email] {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--ink-32);
  color: var(--ink-1);
  font-family: var(--sans);
  font-size: 15px;
  padding: 8px 2px;
  outline: none;
  border-radius: 0;
}
input::placeholder { color: var(--ink-32); }
input:focus { border-bottom-color: var(--ink-1); }

.keystatus {
  margin-top: 16px;
  font-size: 13px;
  min-height: 18px;
  color: var(--ink-55);
  font-variant-numeric: tabular-nums;
}
.keystatus.ok { color: var(--ink-1); }
.keystatus.err { color: var(--ink-1); }
.keystatus.err::before { content: "\2014\00a0"; color: var(--ink-32); }

/* ── Buttons — flat, hairline, 7% ink wash on hover ─────────────────── */
.btn {
  background: transparent;
  color: var(--ink-1);
  border: 1px solid var(--ink-32);
  border-radius: 2px;
  padding: 8px 16px;
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0.02em;
  cursor: pointer;
  white-space: nowrap;
  transition: background 120ms, border-color 120ms, opacity 120ms;
}
.btn:hover { background: var(--ink-7); border-color: var(--ink-55); }
.btn:disabled { color: var(--ink-32); border-color: var(--ink-14); cursor: not-allowed; background: transparent; }
.btn.primary {
  background: var(--ink-1);
  color: var(--paper);
  border-color: var(--ink-1);
}
.btn.primary:hover { background: #000; }
.btn.primary:disabled { background: var(--ink-14); border-color: transparent; color: var(--paper); }
.btn:focus-visible { outline: 1px solid var(--ink-1); outline-offset: 2px; }

/* ── Drop zone — an empty staff system ──────────────────────────────── */
.dropzone {
  position: relative;
  border: 1px solid var(--ink-32);
  border-radius: 2px;
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  transition: background 120ms, border-color 120ms;
}
.dropzone:hover { background: var(--ink-7); }
.dropzone.drag { background: var(--ink-7); border-color: var(--ink-55); }
.dropzone:focus-visible { outline: 1px solid var(--ink-1); outline-offset: 2px; }
.dropicon {
  font-size: 22px;
  line-height: 1;
  color: var(--ink-55);
  margin-bottom: 14px;
  pointer-events: none;
}
.dropinner { position: relative; }
.dropline { margin: 0 0 6px; font-size: 15px; color: var(--ink-55); }
.dropline strong { color: var(--ink-1); font-weight: 600; }
.hint {
  margin: 0;
  font-size: 12px;
  color: var(--ink-32);
  font-variant-numeric: tabular-nums;
}

.uploadbar { display: flex; align-items: center; gap: 16px; margin-top: 20px; }
.selcount { font-size: 13px; color: var(--ink-55); font-variant-numeric: tabular-nums; }

/* ── Batch ──────────────────────────────────────────────────────────── */
.batchhead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 0 0 4px;
}
.jobs { display: flex; flex-direction: column; }

/* Each row reads like a line in a table of contents. */
.job {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 2px;
  border-bottom: 1px solid var(--ink-14);
}
.job:first-child { border-top: 1px solid var(--ink-14); }
.jobbody { flex: 1; min-width: 0; }
.job .name {
  font-size: 15px;
  color: var(--ink-1);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.job.failed .name { text-decoration: line-through; text-decoration-thickness: 1px; color: var(--ink-55); }
.jobaction { display: flex; align-items: center; gap: 14px; white-space: nowrap; }
.job .meta {
  font-size: 13px;
  color: var(--ink-55);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* Progress — hairline track, flat ink fill */
.progress { display: flex; align-items: center; gap: 12px; margin-top: 9px; }
.track {
  flex: 1;
  height: 2px;
  background: var(--ink-14);
  overflow: hidden;
}
.fill {
  height: 100%;
  width: 0;
  background: var(--ink-1);
  transition: width 300ms ease;
}
.pct {
  font-size: 12px;
  color: var(--ink-55);
  min-width: 36px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.job.done.swapped .progress { display: none; }

.note {
  font-size: 12px;
  color: var(--ink-55);
  margin-top: 6px;
  min-height: 15px;
  font-variant-numeric: tabular-nums;
}
.job.queued .note { color: var(--ink-32); }
.job.processing .note { color: var(--ink-1); animation: pulse 1.4s ease-in-out infinite; }
.job.failed .note { color: var(--ink-1); }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
@media (prefers-reduced-motion: reduce) {
  .job.processing .note { animation: none; }
}

.hidden { display: none !important; }

/* ── Footer ─────────────────────────────────────────────────────────── */
.foot {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  color: var(--ink-32);
  font-size: 12px;
  letter-spacing: 0.02em;
  padding: 32px 24px 40px;
}
.foot-mark { font-family: var(--serif); font-size: 14px; margin-right: 4px; }

@media (max-width: 560px) {
  .job { flex-wrap: wrap; gap: 10px; }
  .jobaction { order: 3; width: 100%; justify-content: flex-end; }
}