:root {
  --bg: #f3f6fb;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --accent: #1d4ed8;
  --accent-hover: #1e40af;
  --border: #dbe4f0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.container {
  width: min(1040px, 92%);
  margin: 0 auto;
}

.header {
  background: linear-gradient(135deg, #1e3a8a, #0f172a);
  color: #fff;
  padding: 56px 0;
}

.topline {
  margin: 0 0 10px;
  color: #bfdbfe;
  font-size: 14px;
}

h1 {
  margin: 0;
  font-size: clamp(30px, 5vw, 42px);
}

.lead {
  max-width: 760px;
  margin: 16px 0 28px;
  color: #dbeafe;
}

.btn {
  display: inline-block;
  padding: 12px 20px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  font-weight: 700;
}

.btn:hover {
  background: var(--accent-hover);
}

.header-contacts-tg {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 14px;
  color: #dbeafe;
}

.header-contacts-tg a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #fff;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.header-social-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: block;
}

main {
  padding: 28px 0;
}

.grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  margin-bottom: 18px;
}

.card h2 {
  margin-top: 0;
}

ul,
ol {
  margin: 0;
  padding-left: 22px;
}

li {
  margin-bottom: 8px;
}

form {
  display: grid;
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  font-weight: 600;
}

.form-telegram-hint {
  margin: -2px 0 2px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #bae6fd;
  border-left: 4px solid #0ea5e9;
  background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
  font-size: 13px;
  line-height: 1.45;
  font-weight: 500;
  color: #0c4a6e;
}

.form-telegram-hint a {
  color: #0369a1;
  font-weight: 700;
  text-decoration: none;
}

.form-telegram-hint a:hover {
  text-decoration: underline;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
}

.consent {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--muted);
  font-weight: 400;
}

.consent input {
  width: auto;
  margin-top: 3px;
}

.muted {
  margin: -4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.ok {
  display: none;
  margin: 0;
  color: #166534;
  font-weight: 700;
}

.err {
  display: none;
  margin: 0;
  color: #991b1b;
  font-weight: 700;
}

.footer {
  background: #0b1220;
  color: #e2e8f0;
  padding: 32px 0 36px;
}

.footer h2 {
  margin-top: 0;
}

.footer p {
  margin: 8px 0;
}

.footer a {
  color: #93c5fd;
}


.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 18px;
  font-size: 14px;
}

.site-nav a {
  color: #dbeafe;
  text-decoration: none;
  font-weight: 600;
}

.site-nav a[aria-current="page"] {
  color: #fff;
  text-decoration: underline;
}