:root {
  color-scheme: light;
  --bg: #f4f6f9;
  --surface: #fff;
  --text: #202334;
  --muted: #5c6b80;
  --accent: #d32f2f;
  --accent-dark: #b71c1c;
  --border: #dde3ec;
  --ok: #166534;
  --ok-bg: #dcfce7;
  --bad: #991b1b;
  --bad-bg: #fee2e2;
  --radius: 14px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.55; }
a { color: var(--accent); }
.wrap { width: min(1120px, calc(100% - 2.5rem)); margin: 0 auto; padding: 2rem 0 3.5rem; }
header { position: sticky; top: 0; z-index: 5; border-bottom: 1px solid var(--border); background: rgb(255 255 255 / 94%); backdrop-filter: blur(12px); }
header .wrap { padding: .85rem 0; display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.logo { color: var(--text); text-decoration: none; font-weight: 800; font-size: 1.2rem; letter-spacing: -.04em; }
.logo span { color: var(--accent); }
.tagline { margin: 0; color: var(--muted); font-size: .8125rem; }
body[data-preset] main.wrap { width: min(720px, calc(100% - 2rem)); padding-block: 1.5rem 2.5rem; }
body[data-preset] h1 { font-size: clamp(1.45rem, 4vw, 1.85rem); letter-spacing: -.02em; margin-bottom: .35rem; }
body[data-preset] .lede { font-size: .9375rem; }
.breadcrumbs { display: flex; align-items: center; gap: .5rem; margin: 0 0 .9rem; color: var(--muted); font-size: .8125rem; }
.breadcrumbs a { color: var(--accent); text-decoration: none; }
.breadcrumbs a:hover { text-decoration: underline; }
.breadcrumbs [aria-current="page"] { color: var(--text); }
h1 { font-size: clamp(2rem, 4vw, 3.25rem); letter-spacing: -.055em; line-height: 1.08; margin: 0 0 .8rem; }
h2 { font-size: 1.28rem; letter-spacing: -.025em; margin: 2.5rem 0 1rem; }
p { margin: .5rem 0 1rem; }
.lede { color: var(--muted); font-size: 1.05rem; max-width: 680px; }
.note, .hint { color: var(--muted); font-size: .92rem; }
.hero { text-align: center; padding: 3.2rem 0 2rem; }
.hero .lede { margin: 0 auto 1.5rem; }
.hero-tag { display: inline-flex; align-items: center; gap: .45rem; color: var(--accent-dark); background: #fff0f0; border-radius: 999px; padding: .4rem .8rem; margin-bottom: 1rem; font-size: .82rem; font-weight: 700; }
.search-wrap { display: block; width: min(640px, 100%); margin: 1.5rem auto 0; position: relative; }
.search-wrap input { width: 100%; border: 1px solid var(--border); border-radius: 14px; padding: 1rem 1.1rem 1rem 3rem; font: inherit; background: #fff; color: var(--text); box-shadow: 0 8px 28px rgb(26 31 55 / 7%); outline: none; }
.search-wrap input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgb(211 47 47 / 12%); }
.search-icon { position: absolute; left: 1.1rem; top: 50%; width: 1.2rem; height: 1.2rem; transform: translateY(-50%); color: var(--muted); pointer-events: none; }
.search-icon svg { display: block; width: 100%; height: 100%; }
.category-nav { display: flex; justify-content: center; gap: .55rem; flex-wrap: wrap; margin: 1.25rem 0 2.25rem; }
.category-nav a { color: #555b6d; text-decoration: none; background: #fff; border: 1px solid var(--border); border-radius: 999px; padding: .55rem .9rem; font-size: .88rem; font-weight: 650; }
.category-nav a:hover, .category-nav a:focus-visible { border-color: var(--accent); color: var(--accent-dark); }
.category { margin: 0 0 2.4rem; scroll-margin-top: 5.5rem; }
.category-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: .9rem; }
.category-heading h2 { margin: 0; }
.category-heading span { color: var(--muted); font-size: .86rem; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .9rem; }
.card[hidden], .category[hidden] { display: none; }
.card { position: relative; display: flex; gap: .9rem; min-height: 104px; align-items: center; padding: 1.1rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: inherit; text-decoration: none; box-shadow: 0 2px 5px rgb(26 31 55 / 3%); transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease; }
.card:hover { transform: translateY(-2px); border-color: #f0b7b7; box-shadow: 0 12px 28px rgb(80 20 20 / 9%); }
.card-icon { flex: 0 0 46px; width: 46px; height: 46px; display: grid; place-items: center; border-radius: 13px; background: #fff0f0; color: var(--accent-dark); font-size: 1.35rem; }
.card-icon svg { width: 22px; height: 22px; }
.card-copy { min-width: 0; }
.card strong { display: block; margin-bottom: .2rem; font-size: .98rem; }
.card-copy strong { color: var(--text); }
.card span { color: var(--muted); font-size: .86rem; line-height: 1.4; }
.card-arrow { margin-left: auto; color: #a3a6b2; font-size: 1.15rem; }
.empty-state { display: none; text-align: center; color: var(--muted); padding: 2.5rem; background: #fff; border: 1px dashed var(--border); border-radius: var(--radius); }
.empty-state.visible { display: block; }
.ad { margin: 2rem auto; min-height: 90px; max-width: 970px; }
.seo-copy { margin: 3rem auto 1rem; max-width: 850px; color: var(--muted); }
.seo-copy h2 { color: var(--text); }
.ad-label { display: block; font-size: .68rem; letter-spacing: .06em; text-transform: uppercase; color: #9ca1ae; margin-bottom: .25rem; }
.drop { position: relative; border: 2px dashed #c5d0de; border-radius: var(--radius); padding: 1.65rem 1rem; text-align: center; background: linear-gradient(180deg, #fafbfd 0%, #eef1f6 100%); transition: border-color .2s, background .2s, box-shadow .2s, transform .2s; }
.drop.dragover { border-color: var(--accent); background: #fff5f5; box-shadow: 0 8px 24px rgb(15 23 42 / 8%); transform: scale(1.005); }
.drop input { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.drop label { display: block; cursor: pointer; color: var(--muted); }
.drop label strong { color: var(--accent); }
.drop-icon { display: grid; place-items: center; width: 3.25rem; height: 3.25rem; margin: 0 auto .65rem; border-radius: 50%; background: #ffebeb; color: var(--accent); }
.drop-icon svg { width: 1.65rem; height: 1.65rem; }
.drop-subtext { display: block; margin-top: .35rem; color: var(--muted); font-size: .8rem; }
.stage { margin: .75rem 0 1rem; }
.stage canvas { width: 100%; height: auto; border-radius: 12px; background: #fff; touch-action: none; cursor: grab; }
.zoom { display: flex; gap: .75rem; align-items: center; color: var(--muted); font-size: .9rem; }
.zoom input { flex: 1; accent-color: var(--accent); }
.btn { display: inline-block; margin-top: .75rem; border: 0; border-radius: 10px; padding: .75rem 1.1rem; font: inherit; font-weight: 700; background: #eeecf8; color: var(--text); text-decoration: none; cursor: pointer; }
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-dark); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
:where(a, button, input, .drop):focus-visible { outline: 3px solid rgb(211 47 47 / 55%); outline-offset: 3px; }
.result { padding: .75rem .9rem; border-radius: 10px; }
.result.pass { background: var(--ok-bg); color: var(--ok); }
.result.under, .result.over { background: var(--bad-bg); color: var(--bad); }
footer { border-top: 1px solid var(--border); background: #fff; color: var(--muted); font-size: .85rem; }
footer .wrap { padding: 1rem 0 1.5rem; }
@media (max-width: 800px) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .wrap { width: min(100% - 1.25rem, 1120px); padding-top: 1.4rem; } header .wrap { flex-wrap: wrap; } .tagline { font-size: .75rem; } .hero { padding: 2rem 0 1.25rem; } .cards { grid-template-columns: 1fr; gap: .65rem; } .card { min-height: 88px; padding: .85rem; } .category-nav { justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; padding-bottom: .3rem; } .category-nav a { white-space: nowrap; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; } }