/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --c-blue-900: #1e3a5f;
  --c-blue-800: #1e40af;
  --c-blue-700: #1d4ed8;
  --c-blue-600: #2563eb;
  --c-blue-500: #3b82f6;
  --c-blue-100: #dbeafe;
  --c-blue-50: #eff6ff;
  --c-green-600: #16a34a;
  --c-green-100: #dcfce7;
  --c-yellow-600: #ca8a04;
  --c-yellow-100: #fef9c3;
  --c-orange-600: #ea580c;
  --c-orange-100: #ffedd5;
  --c-red-600: #dc2626;
  --c-red-100: #fee2e2;
  --c-gray-900: #111827;
  --c-gray-700: #374151;
  --c-gray-600: #4b5563;
  --c-gray-500: #6b7280;
  --c-gray-300: #d1d5db;
  --c-gray-200: #e5e7eb;
  --c-gray-100: #f3f4f6;
  --c-white: #ffffff;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --max-width: 1200px;
}
html { scroll-behavior: smooth; scroll-padding-top: 70px; }
body { font-family: var(--font); color: var(--c-gray-900); background: var(--c-white); line-height: 1.6; }
img, svg { display: block; max-width: 100%; }
a { color: var(--c-blue-700); text-decoration: none; }
a:hover, a:focus { text-decoration: underline; }
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* ===== Header ===== */
.site-header { position: sticky; top: 0; z-index: 100; background: var(--c-white); border-bottom: 1px solid var(--c-gray-200); box-shadow: var(--shadow); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.2rem; color: var(--c-gray-900); }
.logo:hover, .logo:focus { text-decoration: none; }
.logo-accent { color: var(--c-blue-600); }
.site-nav { display: flex; gap: 24px; }
.site-nav a { font-size: .95rem; font-weight: 500; color: var(--c-gray-700); }
.site-nav a:hover { color: var(--c-blue-600); text-decoration: none; }
.nav-toggle { display: none; flex-direction: column; gap: 4px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--c-gray-700); border-radius: 2px; transition: .2s; }
.mobile-nav { display: none; background: var(--c-white); border-bottom: 1px solid var(--c-gray-200); padding: 12px 20px; flex-direction: column; gap: 8px; }
.mobile-nav a { font-size: 1rem; font-weight: 500; color: var(--c-gray-700); padding: 8px 0; }
.mobile-nav[hidden] { display: none; }
.mobile-nav.open { display: flex; }

/* ===== Buttons ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 20px; border-radius: var(--radius-sm); font-size: .95rem; font-weight: 600; border: 2px solid transparent; cursor: pointer; transition: .15s; text-decoration: none; }
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--c-blue-600); color: var(--c-white); border-color: var(--c-blue-600); }
.btn-primary:hover { background: var(--c-blue-700); border-color: var(--c-blue-700); }
.btn-secondary { background: var(--c-white); color: var(--c-gray-700); border-color: var(--c-gray-300); }
.btn-secondary:hover { background: var(--c-gray-100); }
.btn-sm { padding: 6px 14px; font-size: .85rem; }
.btn-lg { padding: 14px 28px; font-size: 1.05rem; }

/* ===== Hero ===== */
.hero { background: linear-gradient(135deg, var(--c-blue-900) 0%, var(--c-blue-700) 100%); color: var(--c-white); padding: 60px 0 50px; text-align: center; }
.hero h1 { font-size: 2.2rem; font-weight: 800; line-height: 1.25; margin-bottom: 16px; }
.hero-sub { font-size: 1.1rem; opacity: .9; max-width: 600px; margin: 0 auto 28px; }
.hero .btn-primary { background: var(--c-white); color: var(--c-blue-700); border-color: var(--c-white); }
.hero .btn-primary:hover { background: var(--c-blue-50); }
.hero-note { font-size: .85rem; opacity: .7; margin-top: 16px; }

/* ===== Section Styles ===== */
.section-desc { color: var(--c-gray-600); margin-bottom: 24px; font-size: 1rem; }

/* ===== Scan Section ===== */
.scan-section { padding: 48px 0; }
.scan-layout { display: grid; grid-template-columns: 1fr 340px; gap: 32px; align-items: start; }
.scan-form-col h2 { font-size: 1.5rem; margin-bottom: 8px; }
.presets { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 28px; padding: 14px; background: var(--c-blue-50); border-radius: var(--radius-sm); }
.presets-label { font-size: .85rem; font-weight: 600; color: var(--c-blue-800); }
.preset-btn { padding: 6px 14px; font-size: .85rem; font-weight: 500; border: 1px solid var(--c-blue-600); background: var(--c-white); color: var(--c-blue-700); border-radius: 20px; cursor: pointer; transition: .15s; }
.preset-btn:hover { background: var(--c-blue-600); color: var(--c-white); }

/* ===== Form ===== */
.q-block { border: none; margin-bottom: 24px; padding: 0; }
.q-block legend { font-size: 1rem; font-weight: 600; color: var(--c-gray-900); margin-bottom: 10px; line-height: 1.4; }
.radio-group { display: flex; flex-direction: column; gap: 8px; }
.radio-card { display: flex; align-items: flex-start; gap: 10px; padding: 12px 14px; border: 2px solid var(--c-gray-200); border-radius: var(--radius-sm); cursor: pointer; transition: .15s; background: var(--c-white); font-size: .92rem; line-height: 1.4; }
.radio-card:hover { border-color: var(--c-blue-500); background: var(--c-blue-50); }
.radio-card:has(input:checked) { border-color: var(--c-blue-600); background: var(--c-blue-50); }
.radio-card input { margin-top: 2px; accent-color: var(--c-blue-600); flex-shrink: 0; }
.form-actions { display: flex; gap: 12px; margin-top: 8px; padding-top: 20px; border-top: 1px solid var(--c-gray-200); }

/* ===== Results Panel ===== */
.scan-results-col { position: relative; }
.sticky-panel { position: sticky; top: 80px; background: var(--c-white); border: 1px solid var(--c-gray-200); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-md); }
.sticky-panel h2 { font-size: 1.2rem; margin-bottom: 16px; }
.risk-panel { text-align: center; padding: 20px 16px; border-radius: var(--radius-sm); margin-bottom: 16px; transition: .3s; }
.risk-panel--empty { background: var(--c-gray-100); }
.risk-panel--low { background: var(--c-green-100); }
.risk-panel--moderate { background: var(--c-yellow-100); }
.risk-panel--high { background: var(--c-orange-100); }
.risk-panel--critical { background: var(--c-red-100); }
.risk-tier-badge { display: inline-block; font-size: 1.8rem; font-weight: 800; padding: 8px 20px; border-radius: var(--radius-sm); margin-bottom: 8px; }
.risk-panel--empty .risk-tier-badge { background: var(--c-gray-200); color: var(--c-gray-500); }
.risk-panel--low .risk-tier-badge { background: var(--c-green-600); color: var(--c-white); }
.risk-panel--moderate .risk-tier-badge { background: var(--c-yellow-600); color: var(--c-white); }
.risk-panel--high .risk-tier-badge { background: var(--c-orange-600); color: var(--c-white); }
.risk-panel--critical .risk-tier-badge { background: var(--c-red-600); color: var(--c-white); }
.risk-tier-label { font-weight: 600; font-size: 1rem; margin-bottom: 12px; }
.risk-meter { width: 100%; height: 8px; background: var(--c-gray-200); border-radius: 4px; overflow: hidden; margin-bottom: 8px; }
.risk-meter-fill { height: 100%; border-radius: 4px; transition: width .4s, background .4s; width: 0%; }
.risk-panel--low .risk-meter-fill { background: var(--c-green-600); }
.risk-panel--moderate .risk-meter-fill { background: var(--c-yellow-600); }
.risk-panel--high .risk-meter-fill { background: var(--c-orange-600); }
.risk-panel--critical .risk-meter-fill { background: var(--c-red-600); }
.risk-score { font-size: .85rem; color: var(--c-gray-600); margin-bottom: 8px; }
.risk-summary { font-size: .9rem; color: var(--c-gray-700); line-height: 1.5; }
.progress-bar { width: 100%; height: 6px; background: var(--c-gray-200); border-radius: 3px; overflow: hidden; margin-bottom: 6px; }
.progress-fill { height: 100%; background: var(--c-blue-600); border-radius: 3px; transition: width .3s; width: 0%; }
.progress-text { font-size: .8rem; color: var(--c-gray-500); margin-bottom: 16px; }
.share-actions { display: flex; gap: 8px; justify-content: center; }

/* ===== Action Plan ===== */
.actions-section { padding: 48px 0; background: var(--c-gray-100); }
.actions-section h2 { font-size: 1.5rem; margin-bottom: 8px; }
.action-plan { margin-top: 24px; }
.action-empty { text-align: center; padding: 40px 20px; color: var(--c-gray-500); background: var(--c-white); border-radius: var(--radius); border: 2px dashed var(--c-gray-300); }
.action-category { margin-bottom: 24px; }
.action-category h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.cat-badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; }
.cat-free { background: var(--c-green-100); color: var(--c-green-600); }
.cat-low { background: var(--c-yellow-100); color: var(--c-yellow-600); }
.cat-mid { background: var(--c-orange-100); color: var(--c-orange-600); }
.action-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.action-item { display: flex; align-items: flex-start; gap: 12px; padding: 14px 16px; background: var(--c-white); border-radius: var(--radius-sm); border: 1px solid var(--c-gray-200); }
.action-item input[type="checkbox"] { margin-top: 3px; accent-color: var(--c-blue-600); flex-shrink: 0; width: 18px; height: 18px; }
.action-item label { font-size: .92rem; line-height: 1.4; cursor: pointer; }
.action-item .renter-tag { display: inline-block; font-size: .7rem; font-weight: 700; padding: 1px 6px; border-radius: 4px; background: var(--c-blue-100); color: var(--c-blue-700); margin-left: 6px; text-transform: uppercase; }
.action-item .owner-tag { display: inline-block; font-size: .7rem; font-weight: 700; padding: 1px 6px; border-radius: 4px; background: var(--c-gray-200); color: var(--c-gray-600); margin-left: 6px; text-transform: uppercase; }
.action-item.checked label { text-decoration: line-through; color: var(--c-gray-500); }

/* ===== Info Section ===== */
.info-section { padding: 48px 0; }
.info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 24px; }
.info-card { padding: 24px; background: var(--c-white); border: 1px solid var(--c-gray-200); border-radius: var(--radius); box-shadow: var(--shadow); }
.info-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; color: var(--c-blue-800); }
.info-card p { font-size: .92rem; color: var(--c-gray-700); line-height: 1.6; }

/* ===== FAQ ===== */
.faq-section { padding: 48px 0; background: var(--c-gray-100); }
.faq-section h2 { font-size: 1.5rem; margin-bottom: 24px; }
.faq-list { display: flex; flex-direction: column; gap: 0; }
.faq-item { border-bottom: 1px solid var(--c-gray-200); }
.faq-q { width: 100%; text-align: left; background: none; border: none; font-size: 1rem; font-weight: 600; color: var(--c-gray-900); padding: 16px 0; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px; font-family: var(--font); }
.faq-q::after { content: '+'; font-size: 1.3rem; font-weight: 400; color: var(--c-blue-600); flex-shrink: 0; transition: transform .2s; }
.faq-q[aria-expanded="true"]::after { content: '−'; }
.faq-q:hover { color: var(--c-blue-700); }
.faq-item dd { font-size: .92rem; color: var(--c-gray-700); line-height: 1.6; padding-bottom: 16px; }
.faq-item dd[hidden] { display: none; }

/* ===== Assumptions ===== */
.assumptions-section { padding: 48px 0; }
.assumptions-section h2 { font-size: 1.3rem; margin-bottom: 16px; }
.assumptions-list { list-style: disc; padding-left: 20px; margin-bottom: 20px; }
.assumptions-list li { font-size: .92rem; color: var(--c-gray-700); margin-bottom: 8px; line-height: 1.5; }
.last-updated { font-size: .8rem; color: var(--c-gray-500); }

/* ===== Footer ===== */
.site-footer { background: var(--c-gray-900); color: var(--c-gray-300); padding: 40px 0 20px; }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 24px; margin-bottom: 24px; }
.footer-brand .logo-text { color: var(--c-white); font-size: 1.1rem; font-weight: 700; }
.footer-brand p { font-size: .85rem; margin-top: 6px; color: var(--c-gray-500); }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { color: var(--c-gray-300); font-size: .9rem; }
.footer-links a:hover { color: var(--c-white); }
.footer-bottom { border-top: 1px solid var(--c-gray-700); padding-top: 16px; font-size: .8rem; color: var(--c-gray-500); }
.footer-bottom a { color: var(--c-gray-300); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .scan-layout { grid-template-columns: 1fr; }
  .scan-results-col { order: -1; }
  .sticky-panel { position: static; }
  .info-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .site-nav { display: none; }
  .nav-toggle { display: flex; }
  .hero h1 { font-size: 1.6rem; }
  .hero-sub { font-size: 1rem; }
  .hero { padding: 40px 0 32px; }
  .presets { flex-direction: column; align-items: flex-start; }
  .form-actions { flex-direction: column; }
  .info-grid { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; }
}

/* ===== Print ===== */
@media print {
  .site-header, .site-footer, .hero, .scan-form-col, .share-actions, .faq-section, .assumptions-section, .info-section, .nav-toggle, .mobile-nav { display: none !important; }
  .scan-layout { display: block; }
  .sticky-panel { position: static; box-shadow: none; border: none; padding: 0; }
  .actions-section { background: none; padding: 0; }
  .action-item { break-inside: avoid; }
}

/* ===== Focus Styles ===== */
:focus-visible { outline: 3px solid var(--c-blue-600); outline-offset: 2px; }
.radio-card:focus-within { outline: 3px solid var(--c-blue-600); outline-offset: 2px; }



/* 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;
}