:root {
  --bg: #faf6f0;
  --surface: #ffffff;
  --surface-2: #f3ece1;
  --ink: #2a2118;
  --ink-soft: #5c4f3d;
  --line: #d9ccb8;
  --accent: #8b5a2b;
  --accent-dark: #6b3f1b;
  --accent-light: #c9a87c;
  --success: #4a7c59;
  --warn: #b8860b;
  --danger: #a94442;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 2px 8px rgba(42, 33, 24, 0.06);
  --shadow-lg: 0 8px 30px rgba(42, 33, 24, 0.12);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-dark); }
a:hover { color: var(--accent); }

h1, h2, h3 {
  font-family: var(--font-serif);
  line-height: 1.25;
  margin: 0 0 0.5em;
  color: var(--ink);
}
h1 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h2 { font-size: clamp(1.4rem, 2.5vw, 1.8rem); }
h3 { font-size: 1.1rem; }

p { margin: 0 0 1em; }

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.875rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.1rem;
}
.brand-mark {
  width: 32px;
  height: 32px;
  color: var(--accent);
}
.site-nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.site-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 500;
}
.site-nav a:hover { color: var(--accent-dark); }

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

section {
  padding: 3rem 0;
  border-bottom: 1px solid var(--line);
}
section:last-of-type { border-bottom: none; }

.section-note {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem;
  align-items: center;
  padding-top: 3rem;
}
.hero-text h1 { margin-bottom: 0.75rem; }
.hero-sub {
  font-size: 1.1rem;
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
}
.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.hero-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.hero-card-row {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0;
  font-size: 0.95rem;
}
.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}
.dot-dry { background: var(--accent-light); }
.dot-crack { background: var(--danger); }
.dot-rust { background: var(--warn); }
.dot-smell { background: var(--success); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  font-family: var(--font);
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-dark); }
.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-dark); }
.btn-small { padding: 0.4rem 0.875rem; font-size: 0.85rem; }

.planner-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.planner-inputs,
.planner-output {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}
.planner-output { position: sticky; top: 80px; }

.field {
  display: block;
  margin-bottom: 1.25rem;
}
.field-label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 0.375rem;
  color: var(--ink);
}
.field input[type="text"],
.field input[type="date"],
.field select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font);
  background: var(--surface);
  color: var(--ink);
}
.field input:focus,
.field select:focus {
  outline: 2px solid var(--accent-light);
  outline-offset: 1px;
  border-color: var(--accent);
}
.field legend { padding: 0; }

.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.preset {
  padding: 0.4rem 0.875rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-2);
  cursor: pointer;
  font-size: 0.85rem;
  font-family: var(--font);
  color: var(--ink-soft);
  transition: all 0.15s;
}
.preset:hover { border-color: var(--accent); color: var(--accent-dark); }
.preset[aria-pressed="true"] {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.condition-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
.condition-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  cursor: pointer;
  padding: 0.375rem 0;
}
.condition-option input { cursor: pointer; }

.form-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.plan-result { animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.plan-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--surface-2);
  border-radius: var(--radius-sm);
}
.plan-summary-row {
  display: flex;
  flex-direction: column;
  font-size: 0.8rem;
  color: var(--ink-soft);
}
.plan-summary-row strong {
  font-size: 1rem;
  color: var(--ink);
  font-family: var(--font-serif);
}

.step-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  counter-reset: step;
}
.step-list li {
  position: relative;
  padding: 1rem 1rem 1rem 3.5rem;
  margin-bottom: 0.5rem;
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-light);
  cursor: pointer;
  transition: all 0.15s;
}
.step-list li:hover { border-left-color: var(--accent); }
.step-list li.done {
  border-left-color: var(--success);
  opacity: 0.7;
}
.step-list li.done .step-title { text-decoration: line-through; }
.step-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0.75rem;
  top: 1rem;
  width: 1.75rem;
  height: 1.75rem;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}
.step-list li.done::before {
  background: var(--success);
  content: "\2713";
}
.step-title {
  font-weight: 600;
  display: block;
  margin-bottom: 0.25rem;
}
.step-detail {
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.step-date {
  font-size: 0.75rem;
  color: var(--accent-dark);
  font-weight: 600;
  margin-top: 0.25rem;
  display: block;
}

.plan-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.scenario-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}
.scenario-card h3 { margin-bottom: 0.75rem; }
.scenario-card ul, .scenario-card ol { padding-left: 1.25rem; margin: 0; }
.scenario-card li { margin-bottom: 0.5rem; font-size: 0.9rem; }
.scenario-steps li { padding-bottom: 0.5rem; border-bottom: 1px dashed var(--line); }
.scenario-steps li:last-child { border-bottom: none; }

.mistake-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.mistake-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  border-top: 3px solid var(--warn);
}
.mistake-card h3 { margin-bottom: 0.5rem; }
.mistake-card p { font-size: 0.9rem; margin: 0; color: var(--ink-soft); }

.table-wrap { overflow-x: auto; }
.ref-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.ref-table th, .ref-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}
.ref-table th {
  background: var(--surface-2);
  font-weight: 600;
  font-family: var(--font-serif);
}
.ref-table tr:last-child td { border-bottom: none; }

.care-card {
  background: var(--surface);
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 1.25rem;
}
.care-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 0.75rem;
}
.care-card-header span { font-size: 0.85rem; color: var(--ink-soft); }
.care-card-body {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.care-card-body div {
  display: flex;
  flex-direction: column;
  font-size: 0.8rem;
  color: var(--ink-soft);
}
.care-card-body strong { font-size: 0.95rem; color: var(--ink); }
.care-card-notes {
  padding-left: 1.25rem;
  margin: 0;
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.care-card-notes li { margin-bottom: 0.375rem; }

.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--line);
  padding: 2rem 1.5rem;
  margin-top: 2rem;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}
.footer-nav {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  margin: 0.75rem 0;
  flex-wrap: wrap;
}
.footer-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.85rem;
}
.footer-meta {
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 0.5rem;
}

@media print {
  .site-header, .site-footer, .hero-actions, .form-actions, .plan-actions, .btn, .site-nav { display: none !important; }
  .care-card { box-shadow: none; border: 2px solid #000; }
  body { background: #fff; }
  section { break-inside: avoid; }
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .planner-grid { grid-template-columns: 1fr; }
  .planner-output { position: static; }
  .scenario-grid { grid-template-columns: 1fr; }
  .mistake-grid { grid-template-columns: 1fr; }
  .condition-row { grid-template-columns: 1fr; }
  .plan-summary { grid-template-columns: 1fr 1fr; }
  .care-card-body { grid-template-columns: 1fr; }
  .header-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 500px) {
  .header-inner { padding: 0.75rem 1rem; }
  main { padding: 0 1rem 2rem; }
  section { padding: 2rem 0; }
  .planner-inputs, .planner-output { padding: 1.25rem; }
  .preset-row { gap: 0.375rem; }
  .preset { font-size: 0.8rem; padding: 0.35rem 0.7rem; }
}



/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}