:root {
  --ink: #f5f7ff;
  --muted: #a9b7cc;
  --muted-strong: #c9d5e8;
  --navy: #07182d;
  --navy-deep: #031020;
  --panel: rgba(11, 35, 61, 0.76);
  --panel-solid: #0d2946;
  --line: rgba(161, 193, 226, 0.16);
  --cyan: #76e2f2;
  --cyan-strong: #27c9e4;
  --orange: #ffb35b;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
  --radius-xl: 28px;
  --radius-lg: 18px;
  --radius-md: 12px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% 0%, rgba(31, 107, 151, 0.22), transparent 34rem),
    radial-gradient(circle at 0% 40%, rgba(31, 73, 122, 0.16), transparent 30rem),
    var(--navy-deep);
  font-size: 16px;
  line-height: 1.5;
}

button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; }

.site-shell { overflow-x: clip; }
.topbar, main, .footer { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

.topbar {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand, .footer-brand { display: inline-flex; align-items: center; gap: 11px; letter-spacing: 0.02em; }
.brand strong { display: block; font-size: 0.82rem; letter-spacing: 0.2em; }
.brand small { display: block; margin-top: 2px; color: var(--muted); font-size: 0.67rem; letter-spacing: 0.04em; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid rgba(118, 226, 242, 0.32); border-radius: 12px; background: linear-gradient(135deg, rgba(118, 226, 242, 0.24), rgba(13, 47, 79, 0.9)); box-shadow: 0 8px 24px rgba(39, 201, 228, 0.12); }
.brand-mark img { width: 31px; height: 31px; object-fit: contain; }
.brand-mark.small { width: 30px; height: 30px; border-radius: 9px; }
.brand-mark.small img { width: 22px; height: 22px; }
.topnav { display: flex; align-items: center; gap: 28px; color: var(--muted); font-size: 0.82rem; }
.topnav a { transition: color 160ms ease; }
.topnav a:hover, .topnav a:focus-visible { color: var(--cyan); }

.hero { min-height: 425px; display: grid; grid-template-columns: 1fr; align-items: center; gap: 48px; padding: 76px 0 52px; }
.eyebrow, .section-kicker { color: var(--cyan); font-size: 0.68rem; font-weight: 800; letter-spacing: 0.19em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 9px; }
.pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 5px rgba(255, 179, 91, 0.12); }
h1, h2, p { margin-top: 0; }
h1, h2 { letter-spacing: -0.045em; line-height: 1.02; }
h1 { max-width: 680px; margin-bottom: 22px; font-size: clamp(3.2rem, 7vw, 6.6rem); font-weight: 740; }
h1 em, h2 em { color: var(--cyan); font-family: Georgia, serif; font-weight: 400; }
.hero-subtitle { max-width: 710px; margin: -8px 0 23px; color: var(--cyan); font-size: clamp(1.08rem, 2.2vw, 1.55rem); font-weight: 650; letter-spacing: -0.025em; line-height: 1.18; }
.hero-lede { max-width: 710px; margin-bottom: 17px; color: var(--muted-strong); font-size: 0.98rem; }
.hero-lede-secondary { color: var(--muted); font-size: 0.91rem; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 19px; color: var(--muted); font-size: 0.75rem; }
.hero-stats span { display: inline-flex; align-items: center; gap: 7px; }
.hero-stats b { color: var(--orange); font-size: 0.65rem; }
.search-panel { position: sticky; top: 12px; z-index: 10; width: min(980px, 100%); margin: 0 auto; padding: 14px clamp(14px, 3vw, 26px); border: 1px solid rgba(118, 226, 242, 0.2); border-radius: 14px; background: linear-gradient(135deg, rgba(18, 59, 89, 0.97), rgba(9, 32, 56, 0.98)); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.22); }
.header-search { margin-top: 12px; }
.results-toolbar h2, .length-section h2 { margin-bottom: 7px; font-size: clamp(1.65rem, 3vw, 2.4rem); }
.mode-tabs { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 8px; }
.mode-tab { padding: 8px 13px; border: 1px solid transparent; border-radius: 999px; color: var(--muted); background: transparent; font-size: 0.74rem; font-weight: 700; transition: 160ms ease; }
.mode-tab:hover, .mode-tab:focus-visible { color: var(--ink); background: rgba(118, 226, 242, 0.08); }
.mode-tab.is-active { border-color: rgba(118, 226, 242, 0.38); color: var(--navy); background: var(--cyan); box-shadow: 0 6px 20px rgba(118, 226, 242, 0.16); }
.search-form { display: flex; align-items: center; gap: 9px; min-height: 44px; padding: 5px 6px 5px 12px; border: 1px solid rgba(255,255,255,0.1); border-radius: 10px; background: rgba(1, 15, 29, 0.48); }
.search-icon { width: 22px; height: 22px; display: inline-flex; flex: 0 0 22px; align-items: center; justify-content: center; color: var(--cyan); font-size: 1.35rem; line-height: 1; }
.search-form input { min-width: 0; flex: 1; border: 0; outline: 0; color: var(--ink); background: transparent; font-size: 1.06rem; }
.search-form input::placeholder { color: #7890aa; }
.clear-button { width: 28px; height: 28px; padding: 0; border: 0; border-radius: 50%; color: var(--muted); background: transparent; font-size: 1.4rem; line-height: 1; }
.clear-button:hover { color: var(--ink); background: rgba(255,255,255,0.1); }
.ad-slot { min-height: 54px; display: grid; place-items: center; margin: 26px auto 50px; border: 1px dashed rgba(169, 183, 204, 0.24); border-radius: 10px; color: #73869d; background: rgba(7, 24, 45, 0.4); font-size: 0.64rem; letter-spacing: 0.14em; text-transform: uppercase; }
.ad-slot ins { width: 100%; min-height: 54px; }
.results-section { padding: 5px 0 70px; }
.results-toolbar { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.results-toolbar h2 { margin-bottom: 0; }
.result-count { color: var(--cyan); font-variant-numeric: tabular-nums; }
.sort-control { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 0.75rem; }
.sort-control select { padding: 8px 30px 8px 10px; border: 1px solid var(--line); border-radius: 8px; color: var(--muted-strong); background: var(--panel); }
.result-state { min-height: 24px; margin-bottom: 15px; color: var(--muted); font-size: 0.78rem; }
.results-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 15px; }
.answer-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: rgba(12, 39, 66, 0.62); transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease; }
.answer-card:hover { border-color: rgba(118,226,242,0.42); box-shadow: 0 16px 30px rgba(0, 0, 0, 0.16); transform: translateY(-3px); }
.answer-image-wrap { position: relative; aspect-ratio: 1.28; overflow: hidden; background: #102b47; }
.answer-image-wrap::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(4, 17, 32, 0.35)); pointer-events: none; }
.answer-image-wrap img { width: 100%; height: 100%; display: block; object-fit: cover; transition: transform 240ms ease; }
.answer-card:hover img { transform: scale(1.05); }
.cell-badge { position: absolute; z-index: 1; right: 8px; bottom: 8px; padding: 4px 7px; border: 1px solid rgba(255,255,255,0.18); border-radius: 6px; color: #e5faff; background: rgba(4, 23, 39, 0.72); font-size: 0.61rem; backdrop-filter: blur(8px); }
.answer-body { display: flex; align-items: center; justify-content: space-between; gap: 9px; padding: 13px 13px 14px; }
.answer-body strong { min-width: 0; overflow: hidden; color: #e5effd; font-size: 0.82rem; text-overflow: ellipsis; white-space: nowrap; }
.copy-button { flex: none; padding: 5px 7px; border: 0; color: var(--cyan); background: transparent; font-size: 0.65rem; }
.copy-button span { display: inline-block; margin-left: 3px; transform: translateY(-1px); }
.copy-button:hover { color: #c4f9ff; }
.load-more { display: block; margin: 29px auto 0; padding: 11px 16px; border: 1px solid rgba(118,226,242,0.34); border-radius: 10px; color: var(--cyan); background: rgba(118,226,242,0.06); font-size: 0.77rem; font-weight: 750; }
.load-more span { margin-left: 8px; }
.empty-state { grid-column: 1 / -1; padding: 50px 20px; border: 1px dashed var(--line); border-radius: var(--radius-lg); text-align: center; color: var(--muted); }
.empty-state span { display: block; margin-bottom: 12px; color: var(--cyan); font-size: 2rem; }
.empty-state strong { color: var(--ink); font-size: 1.1rem; }
.empty-state p { margin: 7px 0 0; font-size: 0.8rem; }

.guide-section { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; padding: 75px clamp(22px, 5vw, 60px); border: 1px solid var(--line); border-radius: var(--radius-xl); background: linear-gradient(135deg, rgba(13, 49, 81, 0.7), rgba(7, 24, 45, 0.38)); }
.guide-section h2 { margin: 10px 0 19px; font-size: clamp(2rem, 4vw, 3.1rem); }
.guide-copy > p { max-width: 480px; color: var(--muted-strong); font-size: 0.91rem; }
code { padding: 2px 5px; border-radius: 4px; color: var(--cyan); background: rgba(118,226,242,0.1); }
.guide-example { display: flex; align-items: center; flex-wrap: wrap; gap: 5px; margin-top: 30px; }
.guide-example span { width: 32px; height: 38px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,0.17); border-radius: 7px; background: rgba(255,255,255,0.08); font-weight: 800; }
.guide-example span.unknown { border-color: rgba(118,226,242,0.55); color: var(--cyan); background: rgba(118,226,242,0.1); }
.guide-example b { margin-left: 10px; color: var(--muted); font-size: 0.68rem; font-weight: 500; }
.guide-list { display: grid; gap: 0; }
.guide-list > div { display: grid; grid-template-columns: 36px 1fr; gap: 8px 14px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.guide-list > div:first-child { padding-top: 0; }
.guide-list > div:last-child { border-bottom: 0; padding-bottom: 0; }
.guide-list span { color: var(--orange); font-size: 0.68rem; }
.guide-list strong { font-size: 0.91rem; }
.guide-list p { grid-column: 2; margin: -2px 0 0; color: var(--muted); font-size: 0.77rem; }

.length-section { padding: 75px 0; }
.length-section h2 { margin-top: 10px; }
.length-links { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
.length-links a { padding: 10px 13px; border: 1px solid var(--line); border-radius: 9px; color: var(--muted-strong); background: rgba(12, 39, 66, 0.46); font-size: 0.77rem; transition: 160ms ease; }
.length-links a:hover, .length-links a:focus-visible { border-color: rgba(118,226,242,0.45); color: var(--cyan); background: rgba(118,226,242,0.08); }
.seo-copy { max-width: 920px; margin: 0 auto 28px; padding: 42px clamp(20px, 4vw, 50px); border: 1px solid var(--line); border-radius: var(--radius-xl); color: var(--muted); background: rgba(8, 28, 50, 0.46); }
.seo-copy h2 { margin-bottom: 5px; color: var(--ink); font-size: clamp(2rem, 4vw, 3rem); }
.seo-copy h3 { margin: 0 0 4px; color: var(--cyan); font-size: 1.15rem; }
.seo-copy h4 { margin: 0 0 21px; color: var(--muted-strong); font-size: 0.96rem; }
.seo-copy p { max-width: 820px; margin-bottom: 16px; font-size: 0.84rem; line-height: 1.75; }
.seo-copy p:last-child { margin-bottom: 0; }

.footer { display: grid; grid-template-columns: 1fr auto; gap: 18px 30px; padding: 28px 0 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.73rem; }
.footer-brand { color: var(--muted-strong); }
.footer-links { display: flex; gap: 19px; }
.footer-links a:hover { color: var(--cyan); }
.footer-sites { grid-column: 1 / -1; display: flex; align-items: center; flex-wrap: wrap; gap: 10px; color: #8798ad; font-size: 0.7rem; }
.footer-sites a { color: var(--cyan); }
.footer-sites a:hover, .footer-sites a:focus-visible { text-decoration: underline; }
.footer p { grid-column: 1 / -1; margin: 0; color: #73869d; }
.toast { position: fixed; z-index: 20; right: 22px; bottom: 22px; padding: 11px 15px; border: 1px solid rgba(118,226,242,0.35); border-radius: 9px; color: var(--ink); background: #123a59; box-shadow: var(--shadow); font-size: 0.77rem; opacity: 0; pointer-events: none; transform: translateY(10px); transition: 180ms ease; }
.toast.is-visible { opacity: 1; transform: translateY(0); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 4px; padding-top: 59px; }
  .results-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .guide-section { gap: 42px; }
}

@media (max-width: 620px) {
  .topbar, main, .footer { width: min(100% - 28px, 1180px); }
  .topbar { min-height: 72px; }
  .topnav { gap: 14px; font-size: 0.7rem; }
  .topnav a:nth-child(2) { display: none; }
  .hero { min-height: 0; padding: 51px 0 27px; }
  h1 { font-size: clamp(3rem, 15vw, 4.2rem); }
  .hero-lede { font-size: 0.93rem; }
  .search-panel { top: 8px; padding: 11px 10px; border-radius: 13px; }
  .mode-tabs { gap: 2px; }
  .mode-tab { padding: 8px 10px; font-size: 0.7rem; }
  .search-form { gap: 7px; min-height: 42px; padding-left: 10px; }
  .search-form input { font-size: 0.84rem; }
  .results-toolbar { display: block; }
  .sort-control { margin-top: 14px; }
  .results-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .answer-body { display: block; padding: 10px; }
  .copy-button { padding: 8px 0 0; }
  .guide-section { display: block; padding: 37px 21px; }
  .guide-list { margin-top: 42px; }
  .guide-example b { margin: 8px 0 0; width: 100%; }
  .footer { display: block; }
  .footer-links { margin: 17px 0; }
  .footer-sites { margin-bottom: 17px; }
}