:root {
  --color-bg: #faf8f5;
  --color-surface: #ffffff;
  --color-surface-alt: #f3efe8;
  --color-border: #e0dbd2;
  --color-text: #2d2a26;
  --color-text-muted: #6b6560;
  --color-primary: #4a7c59;
  --color-primary-hover: #3d6849;
  --color-primary-light: #e8f0ea;
  --color-accent: #c4842d;
  --color-accent-light: #fdf3e2;
  --color-danger: #b84c3b;
  --color-danger-light: #fde8e4;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", Menlo, Consolas, monospace;
  --max-width: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-text);
}
.brand:hover { text-decoration: none; }
.brand-icon { display: block; }
.site-nav { display: flex; gap: 20px; }
.site-nav a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}
.site-nav a:hover { color: var(--color-primary); text-decoration: none; }

/* Hero */
.hero-section {
  padding: 60px 0 40px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
}
.hero-content { flex: 1 1 400px; }
.hero-content h1 {
  font-size: 2.4rem;
  line-height: 1.2;
  margin: 0 0 12px;
  color: var(--color-text);
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin: 0 0 24px;
  max-width: 480px;
}
.hero-stats {
  flex: 0 0 240px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.stat {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}
.stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
}
.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-hover); text-decoration: none; color: #fff; }
.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); text-decoration: none; }
.btn-sm { padding: 6px 14px; font-size: 0.85rem; }

/* Generator section */
.generator-section { padding: 40px 0; }
.layout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

.form-panel, .preview-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}
.form-panel h2, .preview-panel h2 {
  margin: 0 0 20px;
  font-size: 1.3rem;
}
.form-row {
  margin-bottom: 16px;
}
.form-row label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--color-text);
}
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 9px 12px;
  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 0.15s;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.form-row.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  flex-wrap: wrap;
}

/* Preview */
.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.preview-header h2 { margin: 0; }
.preview-actions { display: flex; gap: 8px; }
.agreement-preview {
  min-height: 400px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  padding: 24px;
  background: var(--color-bg);
  font-size: 0.9rem;
  line-height: 1.7;
}
.preview-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 350px;
  color: var(--color-text-muted);
  text-align: center;
}
.agreement-doc h3 {
  text-align: center;
  margin: 0 0 4px;
  font-size: 1.2rem;
}
.agreement-doc .doc-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  font-size: 0.85rem;
}
.agreement-doc .doc-field {
  margin-bottom: 12px;
}
.agreement-doc .doc-field strong {
  display: inline-block;
  min-width: 140px;
}
.agreement-doc .doc-terms {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
}
.agreement-doc .doc-signatures {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 32px;
}
.agreement-doc .doc-signature-block {
  text-align: center;
}
.agreement-doc .doc-signature-line {
  border-top: 1px solid var(--color-text);
  margin-top: 50px;
  padding-top: 6px;
  font-size: 0.85rem;
}

/* Presets */
.presets-section { padding: 40px 0; }
.section-intro {
  color: var(--color-text-muted);
  margin: 0 0 20px;
}
.preset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}
.preset-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 18px 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: var(--font-sans);
  color: var(--color-text);
}
.preset-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}
.preset-icon { font-size: 1.6rem; }
.preset-name { font-weight: 600; font-size: 0.9rem; }
.preset-val { font-size: 0.8rem; color: var(--color-text-muted); }

/* Saved */
.saved-section { padding: 40px 0; }
.saved-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.saved-empty {
  text-align: center;
  color: var(--color-text-muted);
  padding: 32px;
  background: var(--color-surface-alt);
  border-radius: var(--radius);
}
.saved-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px 18px;
}
.saved-item-info { flex: 1; }
.saved-item-name { font-weight: 600; }
.saved-item-meta { font-size: 0.8rem; color: var(--color-text-muted); }
.saved-item-actions { display: flex; gap: 8px; }

/* Guide */
.guide-section { padding: 40px 0 60px; }
.guide-section h2 { margin: 0 0 24px; font-size: 1.5rem; }
.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}
.guide-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
}
.guide-card h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  color: var(--color-primary);
}
.guide-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.guide-scenarios {
  margin-bottom: 32px;
}
.guide-scenarios h3 {
  margin: 0 0 12px;
  font-size: 1.1rem;
}
.scenario {
  background: var(--color-accent-light);
  border-left: 4px solid var(--color-accent);
  padding: 14px 18px;
  margin-bottom: 10px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.9rem;
}
.guide-troubleshooting h3 {
  margin: 0 0 12px;
  font-size: 1.1rem;
}
.guide-troubleshooting ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.guide-troubleshooting li {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 8px;
  font-size: 0.9rem;
}

/* Footer */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 28px 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}
.site-footer p { margin: 4px 0; }
.site-footer a { color: var(--color-text-muted); }
.site-footer a:hover { color: var(--color-primary); }
.version { margin-top: 8px; font-size: 0.75rem; }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--color-text);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  z-index: 999;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}
.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Print */
@media print {
  body * { visibility: hidden; }
  .agreement-preview, .agreement-preview * { visibility: visible; }
  .agreement-preview {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    border: none;
    background: #fff;
  }
  .preview-header, .preview-actions { display: none !important; }
}

/* Responsive */
@media (max-width: 860px) {
  .layout-grid { grid-template-columns: 1fr; }
  .hero-section { flex-direction: column; }
  .hero-stats { flex: 1 1 auto; flex-direction: row; }
  .hero-content h1 { font-size: 1.8rem; }
  .form-row.two-col { grid-template-columns: 1fr; }
  .agreement-doc .doc-signatures { grid-template-columns: 1fr; gap: 20px; }
  .site-nav { gap: 12px; }
  .site-nav a { font-size: 0.8rem; }
}

@media (max-width: 500px) {
  .hero-stats { flex-direction: column; }
  .form-actions { flex-direction: column; }
  .form-actions .btn { width: 100%; }
  .preview-actions { flex-wrap: wrap; }
  .saved-item { flex-direction: column; align-items: flex-start; gap: 10px; }
}


/* 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;
}