@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,600&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&family=Caveat:wght@500;600&display=swap');

:root {
  --paper: #ECE8DE;
  --card: #F8F6EF;
  --ink: #1E2622;
  --ink-soft: #59645C;
  --accent: #3E6259;
  --accent-warm: #B97A3D;
  --rule: #D7D1C1;
  --danger: #A6432F;
  --radius: 3px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  background-image:
    linear-gradient(var(--rule) 1px, transparent 1px);
  background-size: 100% 32px;
  color: var(--ink);
  font-family: 'IBM Plex Sans', sans-serif;
  line-height: 1.5;
}

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

header.site {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 16px;
}

header.site .mark {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

header.site .mark b { color: var(--accent); }

h1 {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 40px;
  line-height: 1.1;
  margin: 0 0 10px;
}

.lede {
  color: var(--ink-soft);
  font-size: 16px;
  max-width: 52ch;
  margin: 0 0 36px;
}

.strength-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.strength-row .label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

.stamp {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  padding: 7px 14px;
  border: 1.5px solid var(--ink);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transform: rotate(-0.6deg);
  transition: transform 0.12s ease, background 0.12s ease, color 0.12s ease;
}

.stamp:hover { transform: rotate(0deg); }

.stamp.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--card);
  transform: rotate(0.6deg);
}

.tool {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 0 0;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
}

.margin-rail {
  background: #F2EEE3;
  border-right: 1px dashed var(--rule);
  padding: 18px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.margin-note {
  font-family: 'Caveat', cursive;
  font-size: 15px;
  color: var(--accent-warm);
  writing-mode: vertical-rl;
  white-space: nowrap;
}

.panes {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.pane {
  display: flex;
  flex-direction: column;
  min-height: 340px;
}

.pane + .pane { border-left: 1px solid var(--rule); }

.pane .pane-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--rule);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

.pane textarea {
  flex: 1;
  border: none;
  background: transparent;
  resize: none;
  padding: 16px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  outline: none;
}

.pane textarea::placeholder { color: #A8A296; }

.pane.output { background: #FBFAF5; }

.count {
  font-variant-numeric: tabular-nums;
}

.actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 0 0;
}

button.primary {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 600;
  font-size: 15px;
  padding: 12px 26px;
  background: var(--ink);
  color: var(--card);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s ease;
}

button.primary:hover { background: var(--accent); }
button.primary:disabled { background: #B7B2A5; cursor: not-allowed; }

button.ghost {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: none;
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  padding: 9px 14px;
  border-radius: var(--radius);
  cursor: pointer;
}

button.ghost:hover { border-color: var(--ink); color: var(--ink); }

.status {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--ink-soft);
  min-height: 18px;
}

.status.error { color: var(--danger); }

footer.site {
  margin-top: 56px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--ink-soft);
}

@media (max-width: 720px) {
  .panes { grid-template-columns: 1fr; }
  .pane + .pane { border-left: none; border-top: 1px solid var(--rule); }
  h1 { font-size: 30px; }
  .tool { grid-template-columns: 1fr; }
  .margin-rail { display: none; }
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}