:root {
  --bg: #f3f6fb;
  --surface: #ffffff;
  --surface-soft: #f8faff;
  --surface-tint: #eef3ff;
  --text: #192131;
  --muted: #5f6980;
  --line: #dde5f1;
  --accent: #4f46e5;
  --accent-2: #7c3aed;
  --accent-soft: rgba(79, 70, 229, .10);
  --success-soft: rgba(16, 185, 129, .10);
  --shadow: 0 18px 42px rgba(15, 23, 42, .08);
  --shadow-soft: 0 10px 24px rgba(15, 23, 42, .06);
  --radius: 24px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(124,58,237,.08), transparent 22%),
    radial-gradient(circle at top right, rgba(79,70,229,.10), transparent 25%),
    linear-gradient(180deg, #f7f9fd 0%, var(--bg) 100%);
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
img { max-width: 100%; display: block; }
.wrap { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 50; backdrop-filter: blur(14px);
  background: rgba(255,255,255,.85); border-bottom: 1px solid rgba(221,229,241,.85);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 14px; min-width: 0; }
.brand-mark {
  width: 48px; height: 48px; border-radius: 16px; display: grid; place-items: center; color: white;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); box-shadow: var(--shadow-soft); font-weight: 800; font-size: 1.15rem;
}
.brand strong { display: block; font-size: 1rem; }
.brand small { display: block; color: var(--muted); margin-top: 3px; }
.main-nav { display: flex; gap: 18px; flex-wrap: wrap; }
.main-nav a { color: var(--muted); font-weight: 700; }
.hero {
  background:
    radial-gradient(circle at top left, rgba(124,58,237,.18), transparent 32%),
    radial-gradient(circle at top right, rgba(79,70,229,.16), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.94) 0%, rgba(248,250,255,.92) 100%);
  padding: 74px 0 48px;
  border-bottom: 1px solid var(--line);
}
.hero-grid { display: grid; grid-template-columns: 1.3fr .85fr; gap: 28px; align-items: center; }
.hero-grid-single { grid-template-columns: 1fr; }
.hero h1, .letter-page h1 { font-size: clamp(2rem, 4vw, 3.6rem); line-height: 1.03; margin: 0 0 14px; letter-spacing: -.03em; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin: 0 0 14px;
  padding: 8px 12px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-weight: 800; letter-spacing: .01em;
}
.lede { color: var(--muted); font-size: 1.08rem; max-width: 70ch; line-height: 1.7; }
.hero-panel, .content-card, .word-card, .context-card, .mini-card {
  background: rgba(255,255,255,.94); border: 1px solid rgba(221,229,241,.95); border-radius: var(--radius); box-shadow: var(--shadow);
}
.hero-panel { padding: 20px; display: grid; grid-template-columns: 1fr; gap: 14px; }
.stat { padding: 18px; border-radius: 18px; background: var(--surface-soft); border: 1px solid var(--line); }
.stat strong { display: block; font-size: 1.75rem; line-height: 1.05; }
.stat span { color: var(--muted); line-height: 1.45; display: block; margin-top: 5px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 18px; border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: white; font-weight: 800; border: 0;
  box-shadow: 0 14px 24px rgba(79, 70, 229, .18);
}
.button:hover { color: white; transform: translateY(-1px); }
.button-secondary { background: white; color: var(--text); border: 1px solid var(--line); box-shadow: none; }
.search-section, .letter-page, .wrap section { padding: 34px 0; }
.section-head, .section-head-page { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.section-head p, .section-head-page p { margin: 0; color: var(--muted); line-height: 1.6; }
.search-input {
  width: 100%; min-height: 58px; padding: 0 18px; border-radius: 16px; border: 1px solid var(--line); background: white;
  font-size: 1rem; box-shadow: var(--shadow-soft); outline: none;
}
.search-input:focus { border-color: rgba(79,70,229,.45); box-shadow: 0 0 0 4px rgba(79,70,229,.10); }
.search-results, .card-grid, .context-grid, .mini-card-grid { display: grid; gap: 16px; }
.search-results { margin-top: 18px; }
.card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.word-card {
  padding: 22px; display: flex; flex-direction: column; gap: 10px; transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.word-card:hover { transform: translateY(-3px); border-color: rgba(79,70,229,.24); }
.word-card strong { font-size: 1.05rem; }
.word-card span { color: var(--muted); line-height: 1.6; }
.letter-grid, .chip-group { display: flex; flex-wrap: wrap; gap: 10px; }
.letter-chip, .chip {
  padding: 10px 14px; border-radius: 999px; background: white; border: 1px solid var(--line); font-weight: 800;
  box-shadow: var(--shadow-soft);
}
.hero-word { padding-bottom: 24px; }
.word-grid { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(280px, .85fr); gap: 22px; padding: 30px 0 44px; align-items: start; }
.sidebar-stack { display: grid; gap: 18px; position: sticky; top: 86px; }
.content-card { padding: 28px; }
.breadcrumbs { color: var(--muted); display: flex; gap: 8px; flex-wrap: wrap; font-size: .95rem; margin-bottom: 18px; }
.article-section + .article-section { margin-top: 28px; padding-top: 28px; border-top: 1px solid var(--line); }
.main-article h2, .sidebar-card h3 { margin: 0 0 14px; letter-spacing: -.02em; }
.main-article p { line-height: 1.82; margin: 0 0 14px; }
.synonym-list, .nuance-list, .example-list { padding-left: 22px; line-height: 1.82; margin: 0; }
.synonym-list li, .nuance-list li, .example-list li { margin-bottom: 10px; }
.context-grid, .mini-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.context-card, .mini-card { padding: 18px; }
.context-card h3, .mini-card h3 { margin: 0 0 10px; font-size: 1rem; }
.context-syns { color: var(--muted); }
.quick-facts { display: grid; grid-template-columns: auto 1fr; gap: 10px 16px; margin: 0; }
.quick-facts dt { color: var(--muted); }
.quick-facts dd { margin: 0; font-weight: 700; }
.faq-item + .faq-item { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.faq-item strong { display: block; margin-bottom: 6px; }
.faq-item p { margin: 0; color: var(--muted); line-height: 1.65; }
.info-box { background: linear-gradient(180deg, #f9fbff 0%, #f4f8ff 100%); }
.muted { color: var(--muted); }
.site-footer { margin-top: 38px; padding: 34px 0 62px; border-top: 1px solid var(--line); background: rgba(255,255,255,.75); }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 20px; }
.footer-grid p, .footer-grid a { color: var(--muted); line-height: 1.7; }
.footer-grid a { display: block; margin-bottom: 8px; font-weight: 600; }

@media (max-width: 1100px) {
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 980px) {
  .hero-grid, .word-grid, .footer-grid, .context-grid, .mini-card-grid { grid-template-columns: 1fr; }
  .sidebar-stack { position: static; }
}
@media (max-width: 760px) {
  .header-inner, .section-head, .section-head-page { flex-direction: column; align-items: flex-start; }
  .card-grid, .context-grid, .mini-card-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 46px; }
  .content-card { padding: 20px; }
  .main-nav { gap: 14px; }
  .brand small { font-size: .88rem; }
}
.ad-block {
  margin: 32px 0;
  padding: 0;
  text-align: center;
}

.ad-label {
  margin-bottom: 10px;
  font-size: 12px;
  line-height: 1;
  color: #7a7a7a;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ad-block .adsbygoogle {
  display: block;
  width: 100%;
  min-height: 120px;
}

.main-article > .ad-block,
.main-article .ad-block {
  margin: 36px 0;
}

@media (max-width: 768px) {
  .ad-block {
    margin: 24px 0;
  }
}