:root {
  --primary: #1E40AF;
  --primary-dark: #1E3A8A;
  --accent: #D97706;
  --accent-dark: #B45309;
  --surface: #F8FAFC;
  --ink: #111827;
  --border: #E2E8F0;
  --muted: #64748B;
  --radius: 1rem;
  --shadow: 0 1px 2px rgba(17,24,39,.05), 0 4px 12px rgba(17,24,39,.06);
  --shadow-hover: 0 4px 8px rgba(17,24,39,.06), 0 12px 24px rgba(17,24,39,.10);
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Poppins", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--surface); color: var(--ink); font-family: var(--font-body); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); margin: 0; }
p { margin: 0; }
ul, ol { margin: 0; padding-left: 1.2rem; }
button, input, select { font: inherit; }

@media (prefers-reduced-motion: reduce) { * { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; } }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 4px; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 1rem; }
.container-md { max-width: 860px; margin: 0 auto; padding: 0 1rem; }

/* Disclaimer strip */
.disclaimer-strip { background: #FEF3C7; border-bottom: 1px solid #FDE68A; color: #92400E; font-size: .8rem; text-align: center; padding: .5rem 1rem; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 40; background: rgba(255,255,255,.97); backdrop-filter: blur(6px); border-bottom: 1px solid var(--border); }
.site-header .bar { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .6rem; font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; color: var(--primary); }
.brand .logo { width: 38px; height: 38px; flex-shrink: 0; }
.main-nav { display: none; align-items: center; gap: 1.4rem; font-size: .875rem; font-weight: 500; }
.main-nav a:hover { color: var(--primary); }
.menu-toggle { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; padding: .4rem; background: #fff; cursor: pointer; }
.mobile-nav { display: none; border-top: 1px solid #f1f5f9; padding: .75rem 0 1rem; }
.mobile-nav.open { display: block; }
.mobile-nav a { display: block; border-radius: 8px; padding: .5rem .75rem; font-size: .9rem; font-weight: 500; }
.mobile-nav a:hover { background: rgba(30,64,175,.05); }
@media (min-width: 900px) { .main-nav { display: flex; } .menu-toggle { display: none; } }

/* Hero */
.hero { background: linear-gradient(to bottom, rgba(30,64,175,.06), transparent); }
.hero-inner { padding: 3rem 0 2.5rem; text-align: center; }
.badge { display: inline-block; border-radius: 999px; background: rgba(217,119,6,.12); color: var(--accent-dark); font-size: .75rem; font-weight: 600; padding: .3rem .9rem; margin-bottom: 1.1rem; }
.hero h1 { font-size: 1.9rem; font-weight: 700; line-height: 1.25; max-width: 760px; margin: 0 auto; }
.hero p.lead { margin-top: 1rem; color: var(--muted); max-width: 620px; margin-left: auto; margin-right: auto; }
.hero-ctas { margin-top: 1.5rem; display: flex; flex-wrap: wrap; justify-content: center; gap: .75rem; }
@media (min-width: 640px) { .hero h1 { font-size: 2.5rem; } }

.btn { display: inline-flex; align-items: center; justify-content: center; border-radius: 10px; font-weight: 600; font-size: .875rem; padding: .8rem 1.5rem; cursor: pointer; border: none; transition: background .15s, transform .1s; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { border: 1px solid rgba(30,64,175,.3); color: var(--primary); background: #fff; }
.btn-outline:hover { background: rgba(30,64,175,.05); }

section.section { max-width: 1100px; margin: 0 auto; padding: 2.5rem 1rem; }
.section-title { font-size: 1.4rem; font-weight: 700; margin-bottom: .3rem; }
.section-sub { color: var(--muted); margin-bottom: 1.25rem; }

.grid { display: grid; gap: .9rem; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid-2 { grid-template-columns: 1fr 1fr; } .grid-3 { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1000px) { .grid-3 { grid-template-columns: repeat(3,1fr); } }

.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.2rem; transition: box-shadow .15s, transform .15s, border-color .15s; }
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); border-color: rgba(30,64,175,.25); }
.card h3 { font-size: 1rem; font-weight: 600; margin-bottom: .4rem; }
.card p { font-size: .875rem; color: var(--muted); }
.card .icon { width: 34px; height: 34px; border-radius: 9px; background: rgba(30,64,175,.1); color: var(--primary); display: flex; align-items: center; justify-content: center; margin-bottom: .7rem; }

/* Tables */
table.data-table { width: 100%; border-collapse: collapse; font-size: .875rem; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
table.data-table th { background: var(--primary); color: #fff; text-align: left; padding: .7rem .9rem; font-weight: 600; }
table.data-table td { padding: .65rem .9rem; border-top: 1px solid var(--border); }
table.data-table tr:nth-child(even) td { background: #F8FAFC; }
.table-wrap { overflow-x: auto; margin: 1rem 0; }
.table-note { font-size: .78rem; color: var(--muted); margin-top: .5rem; }

/* FAQ */
.faq-cat-title { font-size: 1.05rem; font-weight: 700; margin: 2rem 0 .75rem; color: var(--primary); }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); background: #fff; padding: 1rem 1.15rem; margin-bottom: .6rem; }
.faq-item summary { cursor: pointer; list-style: none; display: flex; align-items: flex-start; justify-content: space-between; gap: .75rem; font-weight: 500; font-size: .92rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item .plus { color: var(--primary); font-size: 1.2rem; line-height: 1; flex-shrink: 0; transition: transform .15s; }
.faq-item[open] .plus { transform: rotate(45deg); }
.faq-item p { margin-top: .6rem; font-size: .85rem; color: var(--muted); line-height: 1.6; }

/* Steps */
.step-list { counter-reset: step; }
.step-item { display: flex; gap: 1rem; margin-bottom: 1.25rem; }
.step-num { counter-increment: step; flex-shrink: 0; width: 34px; height: 34px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: .9rem; }
.step-num::before { content: counter(step); }
.step-body h3 { font-size: .95rem; font-weight: 600; margin-bottom: .3rem; }
.step-body ul { font-size: .85rem; color: var(--muted); line-height: 1.6; }
.step-body ul li { margin-bottom: .25rem; }

/* Photo guide */
.pill-list { list-style: none; padding: 0; font-size: .85rem; }
.pill-list li { display: flex; gap: .5rem; padding: .4rem 0; }
.pill-list.ok li::before { content: "✓"; color: #16A34A; font-weight: 700; flex-shrink: 0; }
.pill-list.avoid li::before { content: "✗"; color: #DC2626; font-weight: 700; flex-shrink: 0; }
.spec-box { background: #F8FAFC; border: 1px solid var(--border); border-radius: 10px; padding: 1rem; font-size: .85rem; }
.spec-box dt { font-weight: 600; color: var(--ink); }
.spec-box dd { margin: 0 0 .5rem; color: var(--muted); }

/* Ad reserved slot (empty for now — content added in a later update) */
.ad-reserved { min-height: 2px; margin: 1.5rem 0; }

/* Breadcrumb */
.breadcrumb { font-size: .75rem; color: var(--muted); margin-bottom: 1rem; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; list-style: none; padding: 0; }
.breadcrumb li { display: flex; align-items: center; gap: .4rem; }
.breadcrumb .sep { color: #CBD5E1; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .current { color: var(--ink); font-weight: 500; }

/* Language toggle */
.lang-toggle { display: inline-flex; border: 1px solid var(--border); border-radius: 999px; overflow: hidden; }
.lang-toggle a { padding: .45rem 1.1rem; font-size: .82rem; font-weight: 600; color: var(--muted); background: #fff; }
.lang-toggle a.active { background: var(--primary); color: #fff; }

/* Footer */
.site-footer { margin-top: 3rem; border-top: 1px solid var(--border); background: #fff; }
.footer-grid { display: grid; gap: 2rem; padding: 2.5rem 1rem; max-width: 1100px; margin: 0 auto; grid-template-columns: 1fr; }
@media (min-width: 640px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .footer-grid { grid-template-columns: 1.3fr 1fr 1fr 1fr; } }
.footer-grid h3 { font-size: .85rem; font-weight: 600; margin-bottom: .7rem; }
.footer-grid ul { list-style: none; padding: 0; }
.footer-grid ul li { margin-bottom: .45rem; font-size: .85rem; color: var(--muted); }
.footer-grid ul li a:hover { color: var(--primary); }
.footer-bottom { border-top: 1px solid #f1f5f9; padding: 1rem; text-align: center; font-size: .72rem; color: #94A3B8; }

.prose p { color: var(--muted); line-height: 1.7; margin-bottom: 1rem; }
.prose h2 { font-weight: 600; font-size: 1.05rem; margin-bottom: .5rem; margin-top: 1.5rem; }
.text-sm { font-size: .85rem; }
.text-muted { color: var(--muted); }
.mb-2 { margin-bottom: .5rem; }
.mb-4 { margin-bottom: 1rem; }
.note-box { background: #EFF6FF; border: 1px solid #BFDBFE; border-radius: 10px; padding: 1rem; font-size: .85rem; color: #1E3A8A; }