:root {
  --bg: #f6f5f1;
  --card: #ffffff;
  --ink: #1f2933;
  --muted: #536471;
  --line: #d6dde3;
  --blue: #5e82a3;
  --blue-soft: #e4eef8;
  --sage: #6f947e;
  --sage-soft: #e9f2ec;
  --ok: #4d7c63;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.45;
}

h1, h2, h3 {
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: 0.01em;
}

.page-shell {
  max-width: 860px;
  margin: 0 auto;
  padding: 18px 16px 24px;
}

.topbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 12px;
}

.topbar-links {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  white-space: nowrap;
  font-size: 0.88rem;
}

.topbar-links a {
  color: var(--muted);
  text-decoration: none;
}

.topbar-links a:hover { text-decoration: underline; }
.x-icon { margin-right: 2px; }

.hero { margin: 18px 0 14px; }
.hero h1 { margin: 0; font-size: clamp(2rem, 8vw, 2.8rem); }
.subtitle { margin: 6px 0 8px; font-size: 1.08rem; color: #6f8190; }
.helper { margin: 0; font-size: 0.95rem; color: #6f8190; }

.steps { display: grid; gap: 10px; }

.step-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  box-shadow: 0 1px 0 rgba(0,0,0,0.02);
  transition: border-color 180ms ease, transform 200ms ease, background-color 200ms ease;
}

.step-card.active {
  border-color: var(--blue);
  background: #f7fbff;
  transform: translateY(-1px);
}

.step-card.pending {
  opacity: 0.88;
  background: #fbfcfc;
}

.step-card.complete {
  background: #f9fbf9;
  border-color: #d4dee4;
}

.step-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.step-head h2 { margin: 0; font-size: 1.2rem; }
.step-summary { margin: 5px 0 8px; color: var(--ink); font-size: 0.95rem; min-height: 1.1em; }
.step-body { display: none; }
.step-card.active .step-body { display: block; }

.prompt { display: block; margin: 0 0 7px; color: #6f8190; font-size: 0.95rem; }
#step-3 .prompt, #step-4 .prompt { margin-bottom: 5px; }

textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--line);
  padding: 10px 12px;
  font: inherit;
  background: #fff;
}
textarea:focus { outline: 2px solid #dbe7f2; border-color: var(--blue); }

.meta-row { display: flex; justify-content: space-between; align-items: center; margin-top: 8px; color: #6f8190; font-size: 0.86rem; }

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.option-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  text-align: left;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

.option-card:hover { border-color: #b6c6d4; }
.option-card.selected { border-color: var(--sage); background: #e3f0e7; box-shadow: inset 0 0 0 1px rgba(111,148,126,0.18); }
.option-sub { display: block; margin-top: 4px; color: #6f8190; font-size: 0.88rem; }

.rewrite-list { margin-top: 8px; display: grid; gap: 8px; }

.rewrite-instruction {
  margin: 8px 0 6px;
  font-size: 0.9rem;
  color: #5a6c79;
}

.more-btn {
  margin-top: 14px;
}
.rewrite-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: #fff;
}
.rewrite-top { display: flex; justify-content: space-between; gap: 10px; align-items: start; }
.rewrite-card.selected { border-color: var(--blue); background: #e7f0f8; box-shadow: inset 0 0 0 1px rgba(94,130,163,0.18); }
.rewrite-edit {
  border: none; background: transparent; color: #6f8190; cursor: pointer; font-size: 1rem; padding: 2px 4px;
}
.rewrite-edit-box { margin-top: 8px; display: grid; gap: 6px; }

button {
  font: inherit;
}

.primary-btn,
.subtle-btn,
.edit-btn,
.linkish,
select {
  border-radius: 8px;
  border: 1px solid var(--line);
  padding: 7px 10px;
  background: #fff;
  color: var(--ink);
}

.primary-btn {
  border-color: var(--blue);
  background: var(--blue-soft);
}
.primary-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.subtle-btn, .edit-btn, .linkish { cursor: pointer; }
.edit-btn { font-size: 0.85rem; color: #6f8190; }
.linkish { border: none; background: transparent; color: #6f8190; padding: 0; text-decoration: underline; }

.result-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 12px;
  min-height: 90px;
  display: grid;
  gap: 10px;
}

.carry-forward-block,
.next-step {
  border-radius: 8px;
  padding: 10px 11px;
}

.carry-forward-block {
  border-left: 3px solid var(--blue);
  background: var(--blue-soft);
}

.next-step {
  border-left: 3px solid var(--sage);
  background: var(--sage-soft);
}

.result-card h3 { margin: 0 0 6px; color: #395d7f; }
.next-step h3 { color: #3f6d59; }
.result-card p { margin: 0; }

.utility { margin-top: 10px; display: grid; gap: 8px; padding-top: 4px; }
.utility h3 { margin: 0; }
.utility-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.utility-row label { color: #5b6c79; font-size: 0.9rem; }
.inline-check { font-size: 0.9rem; color: #6f8190; display: inline-flex; align-items: center; gap: 6px; }
.share-wrap { margin-top: 4px; }

.footer {
  margin-top: 22px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
  font-size: 0.87rem;
  color: #6f8190;
  display: grid;
  gap: 4px;
}

.toast {
  position: fixed;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: white;
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 0.82rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease;
}
.toast.show { opacity: 0.92; }

.safety-dialog {
  border: 1px solid var(--line);
  border-radius: 12px;
  max-width: 480px;
  width: min(92vw, 480px);
  padding: 16px;
}
.safety-dialog::backdrop { background: rgba(20, 29, 36, 0.4); }
.dialog-actions { margin-top: 10px; display: flex; justify-content: flex-end; }

.method-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px;
}
.method-wrap section { margin-bottom: 16px; }

@media (min-width: 680px) {
  .page-shell { padding: 22px 22px 30px; }
  .card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  #state-options.card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}