@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600&display=swap');

:root {
  --primary: #0f62fe;
  --on-primary: #ffffff;
  --ink: #161616;
  --ink-muted: #525252;
  --ink-subtle: #8c8c8c;
  --canvas: #ffffff;
  --surface-1: #f4f4f4;
  --surface-2: #e0e0e0;
  --inverse-canvas: #161616;
  --inverse-surface-1: #262626;
  --inverse-ink: #ffffff;
  --inverse-ink-muted: #c6c6c6;
  --hairline: #e0e0e0;
  --hairline-strong: #161616;
  --blue-60: #0043ce;
  --blue-80: #002d9c;
  --font-main: 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  font-family: var(--font-main);
  color: var(--ink);
  background: var(--canvas);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.16px;
  margin: 0;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--blue-60); text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: var(--font-main);
  font-weight: 300;
  margin: 0 0 16px;
  color: var(--ink);
}

h1 { font-size: 60px; line-height: 1.17; letter-spacing: -0.4px; }
h2 { font-size: 42px; line-height: 1.20; }
h3 { font-size: 32px; font-weight: 400; line-height: 1.25; }
h4 { font-size: 24px; font-weight: 400; line-height: 1.33; }

p { margin: 0 0 16px; color: var(--ink-muted); }

.container { max-width: 1312px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
@media (max-width: 767px) {
  .section { padding: 48px 0; }
  h1 { font-size: 34px; }
  h2 { font-size: 28px; }
}

.band-surface1 { background: var(--surface-1); }
.band-ink { background: var(--inverse-canvas); color: var(--inverse-ink-muted); }
.band-ink h1, .band-ink h2, .band-ink h3, .band-ink p { color: var(--inverse-ink-muted); }
.band-ink h1, .band-ink h2, .band-ink h3 { color: var(--inverse-ink); }

.utility-bar { background: var(--surface-1); color: var(--ink-muted); font-size: 12px; height: 32px; display: flex; align-items: center; letter-spacing: 0.32px; }
.utility-bar .container { display: flex; justify-content: space-between; }

.top-nav {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  height: 48px;
  display: flex;
  align-items: center;
}
.top-nav .container { display: flex; align-items: center; justify-content: space-between; }
.brand { font-weight: 600; font-size: 16px; color: var(--ink); }
.brand span { color: var(--primary); }
.nav-toggle { display: none; background: none; border: none; font-size: 22px; cursor: pointer; color: var(--ink); }

.layout-sidebar { display: flex; gap: 0; align-items: flex-start; }
.sidebar-nav {
  width: 240px;
  flex-shrink: 0;
  border-right: 1px solid var(--hairline);
  padding: 32px 24px;
}
.sidebar-nav h4 { font-size: 14px; text-transform: none; color: var(--ink-subtle); margin-bottom: 16px; font-weight: 400; }
.sidebar-nav ul { list-style: none; margin: 0 0 24px; padding: 0; }
.sidebar-nav li { margin-bottom: 4px; }
.sidebar-nav a {
  display: block;
  padding: 12px 8px;
  color: var(--ink-muted);
  font-size: 14px;
  border-left: 2px solid transparent;
}
.sidebar-nav a.active { color: var(--ink); border-left-color: var(--primary); background: var(--surface-1); font-weight: 600; }
.content-main { flex: 1; padding: 32px 32px 32px 48px; min-width: 0; }
@media (max-width: 900px) {
  .layout-sidebar { flex-direction: column; }
  .sidebar-nav { width: 100%; border-right: none; border-bottom: 1px solid var(--hairline); padding: 16px 24px; }
  .content-main { padding: 24px; }
}

.btn {
  display: inline-block;
  font-size: 14px;
  letter-spacing: 0.16px;
  padding: 12px 16px;
  border: none;
  cursor: pointer;
  border-radius: 0;
}
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--blue-80); text-decoration: none; color: #fff; }
.btn-secondary { background: var(--ink); color: #fff; }
.btn-tertiary { background: var(--canvas); color: var(--primary); border: 1px solid var(--primary); }
.btn-tertiary:hover { text-decoration: none; background: var(--surface-1); }

.hero-card {
  background: var(--canvas);
  padding: 48px 0;
}
.hero-card .eyebrow { color: var(--ink-muted); font-size: 14px; margin-bottom: 8px; display: block; }
.hero-card img { width: 100%; max-height: 340px; object-fit: cover; margin-top: 24px; }

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--hairline); border-left: 1px solid var(--hairline); }
@media (max-width: 1055px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 671px) { .card-grid { grid-template-columns: 1fr; } }

.feature-card {
  background: var(--canvas);
  padding: 24px;
  border-right: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}
.feature-card img { width: 100%; height: 160px; object-fit: cover; margin-bottom: 16px; }
.feature-card .date-eyebrow { font-size: 12px; color: var(--ink-subtle); letter-spacing: 0.32px; }
.feature-card h4 { font-size: 20px; margin: 8px 0; font-weight: 400; }
.feature-card p { font-size: 14px; }

.badge-pill {
  display: inline-block;
  background: var(--surface-1);
  color: var(--ink-muted);
  padding: 4px 12px;
  font-size: 12px;
  margin-bottom: 12px;
  border: 1px solid var(--hairline);
}

.faq-item {
  background: var(--canvas);
  border: 1px solid var(--hairline);
  padding: 16px 20px;
  margin-bottom: 8px;
}
.faq-item summary { cursor: pointer; font-weight: 600; font-size: 14px; }
.faq-item p { margin-top: 12px; margin-bottom: 0; }

.toc-block {
  background: var(--surface-1);
  padding: 24px;
  margin: 24px 0;
  border-left: 2px solid var(--primary);
}
.toc-block h4 { margin-bottom: 12px; font-size: 16px; font-weight: 600; }
.toc-block ol { margin: 0; padding-left: 20px; }
.toc-block a { color: var(--ink); }

.breadcrumb-nav { font-size: 13px; color: var(--ink-subtle); margin-bottom: 24px; }
.breadcrumb-nav a { color: var(--ink-subtle); }
.breadcrumb-nav .sep { margin: 0 6px; }

.related-block { margin-top: 48px; border-top: 1px solid var(--hairline); padding-top: 32px; }
.related-block h3 { margin-bottom: 24px; }

.disclaimer-box {
  background: var(--surface-1);
  padding: 16px 20px;
  font-size: 13px;
  color: var(--ink-muted);
  margin: 24px 0;
  border-left: 2px solid var(--ink-subtle);
}

.compare-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.compare-table th, .compare-table td { border: 1px solid var(--hairline); padding: 12px 16px; text-align: left; }
.compare-table th { background: var(--surface-1); font-weight: 600; }

.form-field { margin-bottom: 16px; }
.form-field label { display: block; margin-bottom: 6px; font-weight: 400; font-size: 14px; color: var(--ink-muted); }
.form-field input, .form-field textarea {
  width: 100%;
  border: none;
  border-bottom: 1px solid var(--hairline);
  background: var(--surface-1);
  padding: 11px 16px;
  font-family: var(--font-main);
  font-size: 16px;
}
.form-field textarea { min-height: 120px; }
.form-field input:focus, .form-field textarea:focus { outline: none; border-bottom: 2px solid var(--primary); }
.form-status { margin-top: 16px; font-weight: 600; }
.form-status.success { color: #24a148; }
.form-status.loading { color: var(--ink-muted); }

.footer-minimal {
  background: var(--inverse-canvas);
  color: var(--inverse-ink-muted);
  padding: 64px 0 32px;
}
.footer-minimal .container { display: flex; flex-wrap: wrap; gap: 48px; justify-content: space-between; }
.footer-minimal h4 { color: var(--inverse-ink); font-size: 14px; margin-bottom: 16px; font-weight: 600; }
.footer-minimal ul { list-style: none; margin: 0; padding: 0; }
.footer-minimal li { margin-bottom: 8px; }
.footer-minimal a { color: var(--inverse-ink-muted); font-size: 14px; }
.footer-minimal a:hover { color: #fff; }
.footer-legal { border-top: 1px solid var(--inverse-surface-1); margin-top: 32px; padding: 24px; font-size: 12px; color: var(--ink-subtle); text-align: center; }

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--inverse-canvas);
  color: #fff;
  padding: 20px 24px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  border-top: 1px solid var(--primary);
}
.cookie-banner p { color: #ddd; margin: 0; font-size: 14px; max-width: 640px; }
.cookie-actions { display: flex; gap: 12px; }
.cookie-actions button { padding: 10px 16px; font-weight: 400; font-size: 13px; cursor: pointer; border: none; }
.cookie-accept { background: var(--primary); color: #fff; }
.cookie-reject { background: transparent; color: #fff; border: 1px solid #666 !important; }