:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --text: #1d2733;
  --muted: #657180;
  --border: #dbe1e7;
  --primary: #123f68;
  --primary-strong: #0d3151;
  --focus: #276fa8;
  --success-bg: #edf8f0;
  --success-text: #195b2d;
  --error-bg: #fff0f0;
  --error-text: #8b1e1e;
  --info-bg: #eef5fb;
  --info-text: #1e4d74;
  --radius: 14px;
  --shadow: 0 8px 28px rgba(20, 43, 63, .08);
}

* { box-sizing: border-box; }
html { color-scheme: light; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

main { flex: 1; }
a { color: inherit; }
button, input, select { font: inherit; }
button { cursor: pointer; }

.container { width: min(1120px, calc(100% - 2rem)); margin-inline: auto; }
.content-width { max-width: 850px; }
.form-width { max-width: 760px; }

.site-header { background: var(--primary); color: #fff; }
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { font-weight: 750; text-decoration: none; letter-spacing: .01em; }
.main-nav { display: flex; flex-wrap: wrap; gap: .25rem; }
.main-nav a { padding: .55rem .8rem; border-radius: 8px; text-decoration: none; color: rgba(255,255,255,.88); }
.main-nav a:hover, .main-nav a:focus-visible, .main-nav a.active { background: rgba(255,255,255,.13); color: #fff; }

.hero { background: linear-gradient(180deg, #e8f0f7 0%, var(--bg) 100%); padding: 5rem 0 4rem; }
.hero-inner { max-width: 780px; }
.eyebrow { margin: 0 0 .5rem; color: var(--primary); font-size: .82rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.18; }
h1 { margin: .2rem 0 1rem; font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { margin-top: 0; }
.lead { max-width: 680px; color: #425160; font-size: 1.15rem; }

.section { padding: 3.5rem 0; }
.page-heading { margin-bottom: 2rem; }
.page-heading p:last-child { color: var(--muted); }

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.4rem; }
.card-link { display: block; text-decoration: none; transition: transform .16s ease, box-shadow .16s ease; }
.card-link:hover, .card-link:focus-visible { transform: translateY(-3px); box-shadow: 0 12px 34px rgba(20,43,63,.12); }
.card-action { color: var(--primary); font-weight: 700; }
.stack { display: grid; gap: 1rem; }

.news-card .news-meta, .document-meta { color: var(--muted); font-size: .92rem; }
.news-summary { font-weight: 600; color: #374655; }
.markdown > :first-child { margin-top: 0; }
.markdown > :last-child { margin-bottom: 0; }
.markdown a { color: var(--primary); }
.markdown pre { overflow-x: auto; padding: 1rem; background: #f0f3f5; border-radius: 8px; }
.markdown blockquote { margin-left: 0; padding-left: 1rem; border-left: 4px solid var(--border); color: var(--muted); }

.form-card { padding: 1.6rem; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.field { display: grid; gap: .38rem; }
.field-full { grid-column: 1 / -1; }
label { font-weight: 650; }
input, select {
  width: 100%;
  border: 1px solid #bfc8d1;
  border-radius: 9px;
  background: #fff;
  color: var(--text);
  padding: .72rem .8rem;
}
input:focus, select:focus { outline: 3px solid rgba(39,111,168,.18); border-color: var(--focus); }
input[aria-invalid="true"], select[aria-invalid="true"] { border-color: #b33232; }
.checkbox-group { display: grid; gap: .8rem; margin-top: 1.4rem; }
.checkbox-row { display: flex; align-items: flex-start; gap: .7rem; font-weight: 500; }
.checkbox-row input { width: 1.1rem; height: 1.1rem; margin-top: .27rem; flex: 0 0 auto; }
.otp-form { margin-top: 2rem; padding-top: 2rem; border-top: 1px solid var(--border); }

.button-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.4rem; }
.button { display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 9px; padding: .7rem 1rem; font-weight: 750; text-decoration: none; }
.button:disabled { opacity: .55; cursor: not-allowed; }
.button-primary { background: var(--primary); color: #fff; }
.button-primary:hover:not(:disabled), .button-primary:focus-visible { background: var(--primary-strong); }
.button-secondary { background: #fff; color: var(--primary); border-color: #b9c8d5; }
.button-secondary:hover:not(:disabled), .button-secondary:focus-visible { background: #edf3f8; }

.message { margin-bottom: 1.2rem; padding: .9rem 1rem; border-radius: 10px; }
.message.info { background: var(--info-bg); color: var(--info-text); }
.message.success { background: var(--success-bg); color: var(--success-text); }
.message.error { background: var(--error-bg); color: var(--error-text); }

.pagination, .toolbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.pagination { margin-top: 1.5rem; }
.pagination-info, .muted { color: var(--muted); }
.toolbar { margin-bottom: 1rem; }
.toolbar h2, .toolbar p { margin-top: 0; }
.document-card { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.document-card h3 { margin: 0 0 .35rem; }

.site-footer { margin-top: auto; border-top: 1px solid var(--border); background: #fff; }
.footer-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; color: var(--muted); font-size: .92rem; }

:focus-visible { outline: 3px solid rgba(39,111,168,.35); outline-offset: 2px; }

@media (max-width: 760px) {
  .header-inner { align-items: flex-start; flex-direction: column; padding-block: 1rem; }
  .card-grid, .form-grid { grid-template-columns: 1fr; }
  .field-full { grid-column: auto; }
  .hero { padding-top: 3.2rem; }
  .toolbar, .document-card { align-items: flex-start; flex-direction: column; }
}