:root {
  --blue: #0b5fff;
  --blue-dark: #0846c2;
  --navy: #0f1e3d;
  --text: #1c2533;
  --muted: #5b6678;
  --bg: #f3f6fb;
  --card: #fff;
  --border: #dde3ee;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; padding-bottom: 3rem; }

.container { width: 100%; max-width: 1040px; margin: 0 auto; padding: 0 1.25rem; }

.site-header { background: var(--navy); color: #fff; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding-top: 1rem; padding-bottom: 1rem; }
.logo { display: flex; align-items: center; gap: .75rem; font-size: 1.5rem; }
.logo-img { display: block; height: 64px; width: auto; max-width: 100%; }
.phone { color: #fff; text-decoration: none; font-weight: 700; font-size: 1.1rem; text-align: right; line-height: 1.3; }
.phone:hover, .note a:hover { text-decoration: underline; }
.phone:focus-visible, .note a:focus-visible { outline: 3px solid #ffb703; outline-offset: 2px; }
.note a { color: var(--blue-dark); font-weight: 700; }

.hero { padding: 2.5rem 0 1.5rem; }
h1 { margin: 0 0 1rem; font-size: clamp(1.75rem, 5vw, 2.5rem); color: var(--navy); line-height: 1.2; }

.instructions {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 5px solid var(--blue);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
}
.instructions p { margin: 0 0 .5rem; }
.instructions ol { margin: .5rem 0 .75rem; padding-left: 1.4rem; }
.note { color: var(--muted); font-size: .95rem; margin-bottom: 0 !important; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.25rem; margin-top: 1rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 6px rgba(15, 30, 61, .06);
}
.card h3 { margin: 0 0 .5rem; font-size: 1.3rem; color: var(--navy); }
.card .desc { margin: 0 0 1rem; flex: 1; }
.card .updated { margin: 0 0 1.25rem; font-size: .875rem; color: var(--muted); }

.btn {
  display: block;
  text-align: center;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.2rem;
  padding: 1rem 1.25rem;
  border-radius: 8px;
  transition: background .15s;
}
.btn:hover { background: var(--blue-dark); }
.btn:focus-visible { outline: 3px solid #ffb703; outline-offset: 2px; }

.status { grid-column: 1 / -1; color: var(--muted); padding: 1rem 0; }
.status.error { color: #b00020; }

.site-footer { background: var(--navy); color: #b8c5de; padding: 1.25rem 0; font-size: .875rem; }
.site-footer p { margin: 0; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

@media (max-width: 480px) {
  .phone { font-size: .95rem; }
  .logo-img { height: 52px; }
  .instructions { padding: 1rem; }
}