:root {
  --bg: #f6f8fb;
  --text: #1f2933;
  --muted: #5c6773;
  --brand: #0f5f9e;
  --brand-dark: #084b7f;
  --border: #d8e0e8;
  --card: #ffffff;
  --success: #0f7b45;
  --error: #b42318;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
  background: var(--bg);
  color: var(--text);
}
.container {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
}
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 0;
}
.brand {
  font-weight: 700;
  letter-spacing: .08em;
  text-decoration: none;
  color: var(--text);
}
nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
}
nav a:hover,
nav a.active { color: var(--brand); }
.page { padding: 56px 0; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: clamp(24px, 5vw, 48px);
  max-width: 760px;
  box-shadow: 0 12px 30px rgba(15, 34, 58, .08);
}
.eyebrow {
  color: var(--brand);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 13px;
  margin: 0 0 8px;
}
h1 { margin: 0 0 16px; line-height: 1.15; }
p { color: var(--muted); }
form { margin-top: 28px; }
label {
  display: block;
  font-weight: 700;
  margin: 18px 0 8px;
}
input, textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  font: inherit;
}
input:focus, textarea:focus {
  outline: 3px solid rgba(15, 95, 158, .18);
  border-color: var(--brand);
}
.checkbox {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-weight: 400;
}
.checkbox input {
  width: auto;
  margin-top: 4px;
}
button {
  margin-top: 18px;
  border: 0;
  border-radius: 10px;
  padding: 13px 20px;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}
button:hover { background: var(--brand-dark); }
button:disabled { opacity: .7; cursor: wait; }
.small { font-size: 14px; }
.hidden-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
}
.message {
  margin-top: 20px;
  font-weight: 700;
}
.message.success { color: var(--success); }
.message.error { color: var(--error); }
@media (max-width: 760px) {
  .nav-wrap { align-items: flex-start; flex-direction: column; }
}