:root {
  --bg: #f4f8ff;
  --bg-soft: #eef5ff;
  --paper: rgba(255, 255, 255, 0.9);
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: #ffffff;
  --stroke: rgba(45, 124, 255, 0.14);
  --stroke-strong: rgba(45, 124, 255, 0.28);
  --text: #2f3441;
  --text-soft: #616161;
  --text-muted: #787878;
  --accent: #2d7cff;
  --accent-strong: #2e6df3;
  --accent-soft: rgba(45, 124, 255, 0.1);
  --highlight: #2d7cff;
  --highlight-soft: rgba(45, 124, 255, 0.14);
  --shadow: 0 18px 60px rgba(42, 55, 77, 0.08);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --container: 1180px;
  --font-body: Arial, Helvetica, sans-serif;
  --font-display: "Gilroy", Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-body);
  background:
    radial-gradient(circle at top left, rgba(45, 124, 255, 0.12), transparent 28%),
    radial-gradient(circle at 85% 12%, rgba(45, 124, 255, 0.08), transparent 24%),
    linear-gradient(180deg, #f8fbff 0%, #eef5ff 52%, #f6faff 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.page-shell {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
  padding: 16px 0 56px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
  padding: 12px 14px 12px 18px;
  border: 1px solid var(--stroke);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: flex-end;
  gap: 14px;
  min-width: 0;
}

.brand-logo-link {
  display: inline-flex;
  align-items: flex-end;
  flex: 0 0 auto;
}

.brand-logo {
  display: block;
  width: 148px;
  height: auto;
  flex: 0 0 auto;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 18px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #fff;
  background: linear-gradient(135deg, var(--accent) 0%, #4b95ff 100%);
  box-shadow: 0 10px 24px rgba(45, 124, 255, 0.22);
}

.brand-copy {
  display: grid;
  gap: 0;
  padding-bottom: 12px;
}

.brand-title {
  font-size: 0.98rem;
  font-weight: 800;
  font-family: var(--font-display);
  line-height: 1.1;
}

.brand-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.topbar-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
}

.topbar-nav a {
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  transition:
    background-color 0.2s ease,
    color 0.2s ease,
    transform 0.2s ease,
    border-color 0.2s ease;
}

.topbar-nav a:hover {
  color: var(--accent);
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(45, 124, 255, 0.18);
  transform: translateY(-1px);
}

.hero {
  position: relative;
  overflow: hidden;
  margin-bottom: 24px;
  padding: 42px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(45, 124, 255, 0.18), transparent 26%),
    radial-gradient(circle at 78% 68%, rgba(45, 124, 255, 0.08), transparent 18%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(244, 249, 255, 1) 100%);
  box-shadow: var(--shadow);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -100px -100px auto;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45, 124, 255, 0.11), transparent 70%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: -80px auto auto -80px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45, 124, 255, 0.08), transparent 72%);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  padding: 9px 13px;
  border-radius: 999px;
  color: var(--accent-strong);
  background: var(--accent-soft);
  font-size: 0.8rem;
  font-weight: 700;
  font-family: var(--font-display);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.hero h1,
.page-title {
  margin: 0;
  font-family: var(--font-display);
  line-height: 1.04;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.hero h1 {
  max-width: 11ch;
  font-size: clamp(2.5rem, 6vw, 5.2rem);
}

.hero-copy {
  max-width: 720px;
  margin-top: 20px;
  color: var(--text-muted);
  font-size: 1.07rem;
  line-height: 1.72;
}

.hero-actions,
.article-actions,
.empty-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.search-panel {
  margin-top: 30px;
  display: grid;
  gap: 14px;
}

.search-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
}

.search-input {
  width: 100%;
  min-height: 60px;
  padding: 0 20px;
  border: 1px solid rgba(45, 124, 255, 0.12);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--text);
  outline: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.search-input:focus {
  border-color: rgba(45, 124, 255, 0.42);
  box-shadow: 0 0 0 4px rgba(45, 124, 255, 0.12);
}

.search-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-button {
  padding: 10px 14px;
  border: 1px solid var(--stroke);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.92rem;
  transition:
    transform 0.2s ease,
    color 0.2s ease,
    border-color 0.2s ease;
}

.tag-button:hover {
  color: var(--accent);
  border-color: var(--stroke-strong);
  background: rgba(255, 255, 255, 0.98);
  transform: translateY(-1px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background-color 0.2s ease,
    border-color 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent) 0%, #5d9bff 100%);
  box-shadow: 0 14px 30px rgba(45, 124, 255, 0.2);
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(45, 124, 255, 0.14);
}

.button-ghost {
  color: var(--text-soft);
  background: transparent;
  border-color: rgba(45, 124, 255, 0.08);
}

.layout-grid {
  display: grid;
  gap: 22px;
}

.section-block {
  padding: 28px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-lg);
  background: var(--paper);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

.shortcut-block {
  background:
    radial-gradient(circle at top right, rgba(45, 124, 255, 0.14), transparent 26%),
    linear-gradient(135deg, rgba(234, 243, 255, 0.96) 0%, rgba(248, 251, 255, 0.98) 100%);
  border-color: rgba(45, 124, 255, 0.18);
}

.section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.section-copy {
  max-width: 720px;
  color: var(--text-muted);
  line-height: 1.7;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
}

.category-card,
.question-card,
.contact-card,
.related-card {
  position: relative;
  overflow: hidden;
  padding: 22px;
  border: 1px solid var(--stroke);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(247, 251, 255, 0.98));
  box-shadow: 0 14px 32px rgba(24, 37, 58, 0.05);
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease;
}

.category-card::before,
.question-card::before,
.contact-card::before,
.related-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, rgba(45, 124, 255, 0.92), rgba(93, 155, 255, 0.4));
}

.category-card:hover,
.question-card:hover,
.contact-card:hover,
.related-card:hover {
  transform: translateY(-3px);
  border-color: rgba(45, 124, 255, 0.24);
  box-shadow: 0 18px 38px rgba(42, 55, 77, 0.08);
}

.category-card {
  grid-column: span 4;
  min-height: 230px;
}

.question-card,
.contact-card,
.related-card {
  grid-column: span 6;
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(45, 124, 255, 0.14), rgba(45, 124, 255, 0.08));
  color: var(--accent);
  font-size: 1.24rem;
}

.card-title {
  margin: 0 0 10px;
  font-size: 1.2rem;
  line-height: 1.3;
  font-family: var(--font-display);
  font-weight: 700;
}

.card-copy {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.65;
}

.card-meta {
  display: inline-flex;
  margin-top: 16px;
  padding: 8px 13px;
  border-radius: 999px;
  color: var(--accent-strong);
  background: var(--accent-soft);
  font-size: 0.82rem;
  font-weight: 700;
  font-family: var(--font-display);
}

.content-shell {
  display: grid;
  gap: 22px;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.breadcrumbs a {
  color: var(--text-muted);
}

.breadcrumbs span:last-child {
  color: var(--text);
}

.article-hero {
  padding: 34px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top left, rgba(45, 124, 255, 0.1), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(244, 249, 255, 0.98));
  box-shadow: var(--shadow);
}

.article-hero .page-title {
  font-size: clamp(2rem, 5vw, 3.8rem);
}

.article-answer {
  margin-top: 16px;
  max-width: 760px;
  color: var(--text-muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.article-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.9fr);
  gap: 22px;
}

.focus-banner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto;
  gap: 18px;
  align-items: center;
  margin: 22px 0;
  padding: 28px 30px;
  border: 1px solid rgba(45, 124, 255, 0.16);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(45, 124, 255, 0.16), transparent 28%),
    linear-gradient(135deg, #eaf3ff 0%, #dcecff 100%);
  box-shadow: var(--shadow);
}

.focus-banner-copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3vw, 2.4rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.focus-banner-copy p {
  margin: 12px 0 0;
  max-width: 760px;
  color: var(--text-soft);
  font-size: 1.04rem;
  line-height: 1.65;
}

.focus-banner-eyebrow {
  display: inline-flex;
  margin-bottom: 14px;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--accent-strong);
  background: rgba(255, 255, 255, 0.62);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.focus-banner-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.article-main,
.article-side {
  display: grid;
  gap: 22px;
}

.article-side .card-grid {
  grid-template-columns: 1fr;
}

.article-side .card-grid > * {
  grid-column: auto;
}

.article-side .question-card .card-copy {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
}

.article-section {
  padding: 26px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.article-section h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.bullet-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.bullet-list li {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  color: var(--text-muted);
  line-height: 1.6;
}

.bullet-list li::before {
  content: "";
  width: 10px;
  height: 10px;
  margin-top: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--highlight) 0%, #e0b27d 100%);
}

.source-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.source-badge {
  padding: 9px 12px;
  border-radius: 12px;
  color: var(--text-muted);
  background: rgba(45, 124, 255, 0.06);
  font-size: 0.84rem;
}

.visual-guide {
  display: grid;
  gap: 16px;
}

.visual-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--stroke);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.92);
}

.visual-card-image {
  display: block;
  width: 100%;
  height: auto;
  background: #f7fbff;
}

.visual-card-caption {
  padding: 14px 16px 16px;
  color: var(--text-muted);
  line-height: 1.6;
}

.search-result-count {
  margin-top: 8px;
  color: var(--text-muted);
}

.empty-state {
  padding: 28px;
  border: 1px dashed rgba(45, 124, 255, 0.24);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.72);
}

.empty-state h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
}

.empty-state p {
  margin: 0;
  max-width: 720px;
  color: var(--text-muted);
  line-height: 1.7;
}

.footer-note {
  margin-top: 28px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.92rem;
}

@media (max-width: 1024px) {
  .category-card {
    grid-column: span 6;
  }

  .article-grid {
    grid-template-columns: 1fr;
  }

  .focus-banner {
    grid-template-columns: 1fr;
  }

  .focus-banner-actions {
    justify-content: start;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(calc(100% - 20px), var(--container));
    padding-top: 14px;
  }

  .topbar {
    align-items: start;
    flex-direction: column;
  }

  .topbar-nav {
    justify-content: start;
  }

  .brand {
    align-items: flex-end;
    gap: 12px;
  }

  .brand-logo {
    width: 132px;
  }

  .brand-copy {
    padding-bottom: 10px;
  }

  .hero,
  .article-hero,
  .section-block,
  .article-section {
    padding: 22px;
  }

  .search-form {
    grid-template-columns: 1fr;
  }

  .category-card,
  .question-card,
  .contact-card,
  .related-card {
    grid-column: span 12;
  }
}