:root {
  --ink: #1B1B1E;
  --paper: #FBFAF7;
  --paper-dim: #F1EFE9;
  --slate: #52585F;
  --slate-light: #83898F;
  --cyan: #0E7C86;
  --cyan-dark: #0A5E66;
  --magenta: #B23A6B;
  --yellow: #C99400;
  --proof-red: #A9382C;
  --proof-red-bg: #FBEDEA;
  --success: #2F7A4F;
  --success-bg: #EBF4EE;
  --border: #DCD8CC;
  --border-strong: #B9B4A5;
  --radius: 3px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

@media (max-width: 560px) {
  .page { padding: 32px 18px 48px; }
}

/* ---------- Masthead ---------- */

.masthead {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 40px;
}

.mark { flex: none; }

.masthead-text h1 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  font-size: 1.5rem;
  margin: 0;
  letter-spacing: -0.01em;
}

.masthead-text p {
  margin: 2px 0 0;
  font-size: 0.875rem;
  color: var(--slate);
}

/* ---------- Intro ---------- */

.intro {
  margin-bottom: 32px;
  max-width: 62ch;
}

.intro p {
  font-size: 1.05rem;
  color: var(--ink);
  margin: 0;
}

/* ---------- Dropzone ---------- */

.dropzone-wrap { margin-bottom: 40px; }

.dropzone {
  position: relative;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--paper-dim);
  padding: 56px 32px;
  text-align: center;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.dropzone:hover { background: #ECE9E0; }

.dropzone:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.dropzone.dragover {
  background: #E7F1F1;
  border-color: var(--cyan);
}

.corner {
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: var(--ink);
  opacity: 0.55;
}
.corner.tl { top: 10px; left: 10px; border-top: 1.5px solid; border-left: 1.5px solid; }
.corner.tr { top: 10px; right: 10px; border-top: 1.5px solid; border-right: 1.5px solid; }
.corner.bl { bottom: 10px; left: 10px; border-bottom: 1.5px solid; border-left: 1.5px solid; }
.corner.br { bottom: 10px; right: 10px; border-bottom: 1.5px solid; border-right: 1.5px solid; }

.dz-primary {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 500;
  font-size: 1.25rem;
  margin: 0 0 6px;
}

.dz-secondary {
  font-size: 0.9rem;
  color: var(--slate);
  margin: 0;
}

/* ---------- Queue ---------- */

.queue-section { margin-bottom: 40px; }

.queue-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 12px;
}

.queue-header h2 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  font-size: 1.05rem;
  margin: 0;
}

.queue {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border);
}

.queue-item {
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.qi-name {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.875rem;
  flex: 1 1 auto;
  min-width: 0;
  overflow-wrap: anywhere;
}

.qi-status {
  flex: none;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 999px;
  white-space: nowrap;
}
.qi-status.processing { background: var(--paper-dim); color: var(--slate); }
.qi-status.done { background: var(--success-bg); color: var(--success); }
.qi-status.error { background: var(--proof-red-bg); color: var(--proof-red); }

.qi-error-detail {
  flex-basis: 100%;
  font-size: 0.85rem;
  color: var(--proof-red);
  white-space: pre-wrap;
  font-family: 'IBM Plex Mono', monospace;
  background: var(--proof-red-bg);
  border-radius: var(--radius);
  padding: 10px 12px;
  margin-top: 4px;
}

/* ---------- Buttons ---------- */

.btn {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius);
  padding: 8px 16px;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.btn:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }

.btn-primary {
  background: var(--cyan);
  color: white;
}
.btn-primary:hover { background: var(--cyan-dark); }

.btn-secondary {
  background: transparent;
  color: var(--cyan-dark);
  border: 1px solid var(--cyan);
}
.btn-secondary:hover { background: #E7F1F1; }

.btn-download {
  flex: none;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.8rem;
  padding: 6px 12px;
}
.btn-download:hover { background: #35353A; }

/* ---------- Privacy note / footer ---------- */

.privacy-note {
  border-top: 1px solid var(--border);
  padding-top: 20px;
}

.privacy-note p {
  font-size: 0.85rem;
  color: var(--slate);
  margin: 0;
}

footer {
  margin-top: 48px;
  font-size: 0.78rem;
  color: var(--slate-light);
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}