*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg: #f8f9f5;
  --color-surface: #ffffff;
  --color-surface-alt: #f0f2ec;
  --color-text: #1a1c18;
  --color-text-muted: #4a4d47;
  --color-text-light: #7a7d77;
  --color-primary: #2e7d32;
  --color-primary-hover: #1b5e20;
  --color-primary-light: #e8f5e9;
  --color-accent: #00695c;
  --color-border: #d4d8cf;
  --color-border-light: #e8ebe3;
  --color-success: #2e7d32;
  --color-warning: #f57f17;
  --color-error: #c62828;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  --max-width: 1100px;
  --transition: 0.2s ease;
}

html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  padding: 0.75rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.1rem;
}

.logo-icon { flex-shrink: 0; }

.main-nav {
  display: flex;
  gap: 1.25rem;
}

.main-nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.main-nav a:hover { color: var(--color-primary); }

/* Hero */
.hero {
  padding: 2.5rem 0 1.5rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Planner Grid */
.planner-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 1.5rem 0;
}

@media (max-width: 860px) {
  .planner-grid { grid-template-columns: 1fr; }
}

.planner-inputs,
.planner-output {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.planner-inputs h2,
.planner-output h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--color-text);
}

/* Form */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 0.3rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.15);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

/* Presets */
.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.preset-btn {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.preset-btn:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.preset-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.75rem 1.5rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-secondary:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Plan Summary */
.plan-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.summary-card {
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  text-align: center;
}

.summary-label {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-light);
  font-weight: 500;
  margin-bottom: 0.2rem;
}

.summary-value {
  display: block;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
}

/* Plan Actions */
.plan-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

/* Plan Table */
.plan-table-wrap {
  max-height: 400px;
  overflow-y: auto;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
}

.plan-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.plan-table thead {
  position: sticky;
  top: 0;
  z-index: 1;
}

.plan-table th {
  background: var(--color-surface-alt);
  padding: 0.6rem 0.75rem;
  text-align: left;
  font-weight: 600;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border-light);
}

.plan-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text);
}

.plan-table tr:last-child td { border-bottom: none; }

.plan-table tr:hover td { background: var(--color-primary-light); }

.status-done {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  background: var(--color-primary-light);
  color: var(--color-success);
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

.status-pending {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  background: #fff8e1;
  color: var(--color-warning);
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* Content Sections */
.content-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin: 1.5rem 0;
  box-shadow: var(--shadow-sm);
}

.content-section h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.content-section p {
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}

.content-section p:last-child { margin-bottom: 0; }

/* FAQ */
.faq-list dt {
  font-weight: 600;
  color: var(--color-text);
  margin-top: 1rem;
  font-size: 0.95rem;
}

.faq-list dd {
  color: var(--color-text-muted);
  margin-top: 0.25rem;
  margin-left: 0;
  font-size: 0.9rem;
}

.faq-list dt:first-child { margin-top: 0; }

/* Footer */
.site-footer {
  margin-top: auto;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  padding: 1.5rem 0;
  text-align: center;
}

.site-footer p {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 0.25rem;
}

.site-footer a {
  color: var(--color-primary);
  text-decoration: none;
}

.site-footer a:hover { text-decoration: underline; }

.footer-links {
  margin-top: 0.5rem;
  display: flex;
  justify-content: center;
  gap: 0.75rem;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--color-text);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Print */
@media print {
  .site-header, .site-footer, .plan-actions, .planner-inputs, .btn-primary, .presets { display: none !important; }
  .planner-grid { display: block; }
  .plan-table-wrap { max-height: none; overflow: visible; }
  body { background: #fff; }
  .content-section { break-inside: avoid; }
}

/* Responsive */
@media (max-width: 600px) {
  .plan-summary { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding: 1.5rem 0 1rem; }
  .planner-inputs, .planner-output { padding: 1rem; }
  .content-section { padding: 1rem; }
}



/* 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;
}