:root {
  --bg: #eef4fb;
  --surface: rgba(255, 255, 255, 0.92);
  --line: rgba(17, 24, 39, 0.1);
  --text: #172235;
  --muted: #5e6c7d;
  --primary: #0f4aa1;
  --primary-dark: #0a3675;
  --accent: #f1c35d;
  --ok-bg: #edf9f1;
  --ok-text: #17693f;
  --err-bg: #fef0f0;
  --err-text: #a22f2f;
  --radius-lg: 22px;
  --radius-md: 16px;
  --shadow: 0 18px 42px rgba(15, 23, 42, 0.08);
  --content: min(1140px, calc(100% - 28px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Aptos", "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 74, 161, 0.14), transparent 34%),
    radial-gradient(circle at top right, rgba(241, 195, 93, 0.16), transparent 30%),
    linear-gradient(180deg, #f7faff 0%, #edf3fa 100%);
}

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

.shell { width: var(--content); margin: 0 auto; }

.topbar { padding: 18px 0 0; }
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 46px;
  height: 46px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary) 0%, #2b7ae0 100%);
  color: #fff;
  font-size: 21px;
  font-weight: 800;
  flex: 0 0 auto;
}

.brand-copy strong {
  display: block;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.brand-copy span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px;
}

.nav-links a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
}

.nav-links a.active,
.nav-links a:hover {
  color: var(--primary-dark);
  background: rgba(15, 74, 161, 0.08);
}

.hero { padding: 18px 0 6px; }
.hero-panel {
  padding: 38px;
  border-radius: 34px;
  color: #fff;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.14), transparent 30%),
    linear-gradient(135deg, #0a3c84 0%, #0f4aa1 42%, #2e7ee4 100%);
  box-shadow: var(--shadow);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.9fr);
  gap: 24px;
  align-items: start;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 18px 0 12px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(34px, 6vw, 64px);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.lead {
  max-width: 640px;
  margin: 0;
  font-size: 17px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
}

.hero-card {
  padding: 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.hero-card h2 { margin: 0 0 12px; font-size: 18px; }
.hero-card ul { margin: 0; padding-left: 18px; }
.hero-card li + li { margin-top: 8px; }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: #fff;
  color: var(--primary-dark);
  font-weight: 700;
  cursor: pointer;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #f6d57e 100%);
  color: #2e2407;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  border-color: rgba(17, 24, 39, 0.12);
  color: var(--primary-dark);
}

.page-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.68fr);
  gap: 20px;
  padding: 22px 0 56px;
}

.stack { display: grid; gap: 22px; }

.card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.card-inner { padding: 24px; }

.card h2 {
  margin: 0 0 14px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 26px;
  letter-spacing: -0.02em;
}

.card p {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.65;
}

.card p:last-child { margin-bottom: 0; }

.grid-two {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stat,
.list-box {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.62);
}

.stat strong,
.list-box strong {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary-dark);
}

.pill-list,
.feature-list,
.section-nav,
.checkbox-list {
  display: grid;
  gap: 10px;
}

.pill-list,
.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pill-list li,
.feature-list li,
.checkbox-item {
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.7);
  overflow-wrap: anywhere;
}

.section-nav a {
  padding: 11px 13px;
  border-radius: 14px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-weight: 600;
  background: rgba(255, 255, 255, 0.64);
}

.section-nav a:hover { color: var(--primary-dark); }

.form-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field,
.field-full {
  display: grid;
  gap: 8px;
}

.field-full { grid-column: 1 / -1; }

.field label,
.checkbox-group legend {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary-dark);
}

.field input,
.field textarea {
  width: 100%;
  padding: 14px 15px;
  border-radius: 16px;
  border: 1px solid rgba(15, 74, 161, 0.16);
  background: rgba(255, 255, 255, 0.9);
  font: inherit;
  color: var(--text);
}

.field textarea {
  min-height: 150px;
  resize: vertical;
}

.checkbox-group {
  padding: 16px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.62);
}

.checkbox-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.checkbox-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.checkbox-inline {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(15, 74, 161, 0.05);
  border: 1px solid rgba(15, 74, 161, 0.1);
  color: var(--muted);
}

.status-box {
  display: none;
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 18px;
  font-weight: 600;
  line-height: 1.6;
}

.status-box.is-visible { display: block; }
.status-box.is-success {
  background: var(--ok-bg);
  border: 1px solid rgba(23, 105, 63, 0.16);
  color: var(--ok-text);
}

.status-box.is-error {
  background: var(--err-bg);
  border: 1px solid rgba(162, 47, 47, 0.16);
  color: var(--err-text);
}

.protocol-box {
  margin-top: 14px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(23, 105, 63, 0.16);
  background: rgba(255, 255, 255, 0.92);
}

.protocol-box strong {
  display: block;
  margin-bottom: 6px;
  color: var(--primary-dark);
}

.footer { padding: 0 0 26px; }
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 4px 0;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 980px) {
  .hero-grid,
  .page-grid,
  .grid-two,
  .form-grid,
  .checkbox-list {
    grid-template-columns: 1fr;
  }

  .topbar-inner {
    flex-direction: column;
    align-items: flex-start;
    border-radius: 30px;
    padding: 14px;
  }

  .nav-links {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav-links a { width: 100%; }

  .hero-panel {
    padding: 28px 22px;
    border-radius: 28px;
  }

  .card-inner { padding: 20px; }

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

@media (max-width: 640px) {
  :root { --content: min(1140px, calc(100% - 18px)); }

  .topbar-inner {
    gap: 12px;
    padding: 12px;
    border-radius: 24px;
  }

  .brand { align-items: flex-start; }
  .brand-copy span { display: none; }

  .nav-links { grid-template-columns: 1fr; }

  .btn,
  .nav-links a { width: 100%; }

  .hero-panel { padding: 22px 18px; }

  .hero-card {
    padding: 18px;
    border-radius: 20px;
  }

  .hero h1 { font-size: 34px; }

  .lead {
    font-size: 16px;
    line-height: 1.58;
  }

  .btn-row { margin-top: 18px; }
  .btn { min-height: 48px; }

  .card-inner { padding: 18px; }
  .card h2 { font-size: 24px; }

  .stat,
  .list-box,
  .checkbox-group,
  .pill-list li,
  .feature-list li,
  .checkbox-item,
  .section-nav a {
    border-radius: 14px;
  }

  .field input,
  .field textarea { font-size: 16px; }

  .footer-inner {
    padding-top: 14px;
    font-size: 13px;
  }
}