:root {
  --bg: #ffffff;
  --bg-soft: #f4f6fb;
  --ink: #1b2140;
  --mute: #8b91a8;
  --accent: #6d5efc;
  --accent-2: #7b6cf6;
  --accent-soft: #f3f4ff;
  --card: #ffffff;
  --chip: #f5f6fb;
  --line: #eef0f6;
  --shadow: 0 10px 28px rgba(40, 50, 90, 0.07);
  --radius: 18px;
  --radius-lg: 24px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
button { font: inherit; }

.skip {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}
.skip:focus {
  position: fixed;
  left: 12px;
  top: 12px;
  z-index: 80;
  width: auto;
  height: auto;
  clip: auto;
  padding: 8px 12px;
  background: var(--ink);
  color: #fff;
  border-radius: 8px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: 1.15rem;
  color: var(--ink);
}
.brand:hover { color: var(--ink); }
.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--accent-soft);
  display: grid;
  place-items: center;
  color: var(--accent);
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
  font-size: 0.95rem;
  color: #4b5168;
}
.nav-links a:hover { color: var(--accent); }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 48px 24px 72px;
}

.section-title {
  text-align: center;
  margin: 0 0 8px;
  font-size: 2rem;
  letter-spacing: -0.03em;
  font-weight: 800;
}
.section-sub {
  text-align: center;
  margin: 0 0 36px;
  color: var(--mute);
}

.popular-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 960px;
  margin: 0 auto;
}
.pop-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 12px 22px;
  text-align: center;
  color: var(--ink);
  min-height: 148px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.pop-card:hover {
  color: var(--ink);
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(40, 50, 90, 0.1);
}
.pop-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--accent-soft);
  color: var(--accent-2);
  display: grid;
  place-items: center;
}
.pop-card strong {
  font-size: 0.95rem;
  font-weight: 700;
}

.catalog {
  background: var(--bg-soft);
  padding: 64px 0 80px;
}
.catalog .wrap { padding-top: 0; padding-bottom: 0; }

.cat-panel {
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 22px 24px 20px;
  margin-bottom: 18px;
}
.cat-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.cat-ico {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent-2);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.cat-head h2 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
}
.cat-head a { color: var(--ink); }
.cat-head a:hover { color: var(--accent); }
.cat-count {
  margin-left: auto;
  background: #f1f3f8;
  color: #6b728c;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.82rem;
}
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}
.chip {
  background: var(--chip);
  border-radius: 14px;
  padding: 14px 18px;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.chip:hover {
  color: var(--ink);
  border-color: #d4cffc;
  background: #f4f3ff;
}
.chip:hover .chip-arrow { opacity: 1; transform: translateX(0); }
.chip-arrow {
  opacity: 0;
  transform: translateX(-4px);
  color: var(--accent);
  transition: 0.15s ease;
}

.page-hero h1 {
  margin: 0 0 10px;
  font-size: clamp(1.7rem, 4vw, 2.3rem);
  letter-spacing: -0.03em;
  font-weight: 800;
}
.page-hero p { margin: 0 0 8px; color: #5b6178; max-width: 62ch; }
.crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  font-size: 0.8rem;
  color: var(--mute);
}
.crumb a { color: var(--mute); }
.crumb a:hover { color: var(--accent); }
.crumb li + li::before { content: "/"; margin-right: 6px; }

.tool {
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 24px;
  margin: 24px 0 32px;
}
.tool-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 18px;
}
.btn {
  border: 0;
  background: var(--accent);
  color: #fff;
  border-radius: 12px;
  padding: 10px 16px;
  font-weight: 700;
  cursor: pointer;
}
.btn:hover { filter: brightness(0.95); }
.btn-ghost {
  background: var(--chip);
  color: var(--ink);
}
.name-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.name-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--chip);
  border-radius: 12px;
  padding: 12px 14px;
  font-weight: 700;
}
.name-row button {
  border: 0;
  background: #fff;
  color: var(--accent);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 700;
}

.prose { max-width: 68ch; }
.prose h1 {
  font-size: clamp(1.7rem, 4vw, 2.3rem);
  letter-spacing: -0.03em;
  font-weight: 800;
  margin: 0 0 12px;
}
.prose h2 { font-size: 1.2rem; margin: 28px 0 8px; }
.prose p { color: #4b5168; }
.also {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.also a {
  background: var(--chip);
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 600;
}

.site-foot {
  border-top: 1px solid var(--line);
  padding: 28px 24px 48px;
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  justify-content: space-between;
  color: var(--mute);
  font-size: 0.9rem;
}
.site-foot .name { color: var(--ink); font-weight: 800; }
.site-foot nav { display: flex; flex-wrap: wrap; gap: 12px 16px; }
.site-foot a { color: var(--mute); }
.site-foot a:hover { color: var(--accent); }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .popular-grid { grid-template-columns: 1fr 1fr; }
  .name-list { grid-template-columns: 1fr; }
  .section-title { font-size: 1.6rem; }
}
@media (max-width: 560px) {
  .popular-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .pop-card { min-height: 128px; padding: 20px 8px 16px; }
}