:root {
  --bg: #FAF9F7;
  --card: #ffffff;
  --ink: #111315;
  --muted: #6B6D70;
  --line: #E7E3DC;
  --accent: #304A2F;
  --accent-ink: #ffffff;
  --soft: #EEF2EC;
  --red: #E04848;
  --bad: #b3261e;
  --warn: #9a6400;
  --good: #2F6B45;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0D0F11; --card: #16181B; --ink: #F2F1EE; --muted: #A6A8AC; --line: #2A2D31;
    --accent: #A9C8A6; --accent-ink: #0D0F11; --soft: #1C231C; --red: #ED5454;
    --bad: #ff8a80; --warn: #f2c14e; --good: #7fd69c;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0D0F11; --card: #16181B; --ink: #F2F1EE; --muted: #A6A8AC; --line: #2A2D31;
  --accent: #A9C8A6; --accent-ink: #0D0F11; --soft: #1C231C; --red: #ED5454;
  --bad: #ff8a80; --warn: #f2c14e; --good: #7fd69c;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
  padding-bottom: env(safe-area-inset-bottom);
}
[hidden] { display: none !important; }

.top {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  max-width: 40rem; margin: 0 auto; padding: 1rem 16px 0.5rem;
}
.top h1 { font-size: 1.1rem; margin: 0; letter-spacing: 0.02em; white-space: nowrap; }
.h1-tag { color: var(--muted); font-weight: 500; }

main { max-width: 40rem; margin: 0 auto; padding: 0 16px 2rem; }
main > section { display: flex; flex-direction: column; gap: 14px; }

h2 { font-size: 1rem; margin: 0 0 0.5rem; }
a { color: var(--accent); }
code { font-size: 0.85em; word-break: break-all; }
.muted { color: var(--muted); }
.hint { color: var(--muted); font-size: 0.9rem; margin: 0.5rem 0 0; }
.center { text-align: center; justify-content: center; }
.bad { color: var(--bad); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
}
.card.warn { border-color: var(--warn); }
.card p { margin: 0; }
details.card > summary { cursor: pointer; font-weight: 600; }
details.card[open] > summary { margin-bottom: 0.5rem; }

.status { min-height: 1.4em; margin: 0.25rem 0 0.75rem; font-size: 0.95rem; }
.status.bad { color: var(--bad); }
.status.warn { color: var(--warn); }
.status.good { color: var(--good); }

label { display: block; font-size: 0.9rem; color: var(--muted); margin: 0.6rem 0 0.25rem; }
label:first-child { margin-top: 0; }
input[type="text"] {
  width: 100%; font: inherit; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px; padding: 0.7rem 0.8rem;
}
input[type="text"]:focus { outline: 2px solid var(--accent); outline-offset: 0; }
.file { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

button, .btn {
  font: inherit; font-weight: 600; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 1.1rem; margin: 0;
  border-radius: 12px; border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-ink);
  -webkit-tap-highlight-color: transparent;
}
.btn { color: var(--accent-ink); }
button:active, .btn:active { transform: scale(0.98); }
.primary { background: var(--accent); color: var(--accent-ink); }
.secondary { background: transparent; color: var(--accent); }
label.btn.secondary { color: var(--accent); }
.big { min-height: 72px; font-size: 1.2rem; border-radius: 16px; }
button.link {
  background: none; border: 0; color: var(--accent); min-height: 40px; padding: 0 4px;
  font-weight: 500; text-decoration: underline; text-underline-offset: 3px;
}
.top button.link { font-size: 0.85rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 60vw; }
button.icon {
  min-height: 40px; min-width: 40px; padding: 0; border-radius: 10px;
  background: transparent; color: var(--ink); border: 1px solid var(--line); font-size: 1.05rem;
}
.row { display: flex; gap: 10px; margin-top: 0.75rem; flex-wrap: wrap; }

/* segmented control from radio buttons */
.segmented { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.segmented legend { font-size: 0.9rem; color: var(--muted); margin-bottom: 0.35rem; padding: 0; }
.segmented label { margin: 0; flex: 1 1 0; min-width: 5.5rem; }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented span {
  display: flex; align-items: center; justify-content: center; text-align: center;
  min-height: 44px; padding: 0 0.6rem; border-radius: 10px;
  border: 1px solid var(--line); background: var(--card); color: var(--ink); font-weight: 500;
}
.segmented input:checked + span { background: var(--soft); border-color: var(--accent); color: var(--accent); font-weight: 650; }
.segmented input:focus-visible + span { outline: 2px solid var(--accent); }
.segmented.small { margin-top: 0.8rem; }

.list { list-style: none; margin: 0; padding: 0; }
.list li {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 0.55rem 0; border-top: 1px solid var(--line); word-break: break-word;
}
.list li:first-child { border-top: 0; }
#recent li { display: block; }

/* crop */
.crop-wrap { display: flex; justify-content: center; width: 100%; }
#crop-canvas { touch-action: none; border-radius: 8px; background: #000; max-width: 100%; }
.bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.bar button { padding: 0 0.4rem; font-size: 0.9rem; }

/* review */
.pages { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.page { margin: 0; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 8px; }
.page img { display: block; width: 100%; height: 180px; object-fit: contain; background: var(--soft); border-radius: 6px; }
.page figcaption { display: flex; align-items: center; justify-content: space-between; margin-top: 6px; font-size: 0.9rem; color: var(--muted); }
.page .tools { display: flex; gap: 4px; }

/* busy overlay */
.busy {
  position: fixed; inset: 0; z-index: 10;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
}
.busy p { margin: 0; font-weight: 600; max-width: 80vw; text-align: center; word-break: break-word; }
.spinner {
  width: 42px; height: 42px; border-radius: 50%;
  border: 4px solid var(--line); border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 2.4s; } }