/* ==========================================================================
   Регистрация на семинар КНИИХП — светлая версия
   Основные цвета: --primary #1b32a5, --accent #4f9cc3, --dark #20465a,
   акцент кнопки #e8930c
   ========================================================================== */

:root {
  --primary: #1b32a5;
  --primary-dark: #0d4a8f;
  --accent: #e8930c;
  --dark: #20465a;
  --text: #1a1a1a;
  --muted: #5a6b7a;
  --border: #ccd5df;
  --bg-soft: #f2f6fb;
  --radius: 8px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'PT Sans', 'Segoe UI', Arial, sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.55;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

a {
  color: var(--primary-dark);
}

img {
  max-width: 100%;
}

/* Form */
.simple-form {
  max-width: 640px;
  margin: 0 auto;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 8px 30px rgba(13, 74, 143, .08);
}

.simple-form h2 {
  font-size: 22px;
  margin-bottom: 6px;
}

.simple-form p {
  font-size: 14px;
  color: #555;
  margin-bottom: 18px;
}

.simple-form .row {
  margin-bottom: 14px;
}

.simple-form label {
  display: block;
  font-weight: 600;
  margin-bottom: 5px;
  font-size: 14px;
}

.simple-form .required::after {
  content: " *";
  color: #c00;
}

.simple-form input[type="text"],
.simple-form input[type="email"],
.simple-form input[type="tel"],
.simple-form select,
.simple-form textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 15px;
  box-sizing: border-box;
  font-family: inherit;
}

.simple-form input:focus,
.simple-form select:focus,
.simple-form textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: 0;
  border-color: var(--primary);
}

.simple-form textarea {
  min-height: 70px;
  resize: vertical;
}

.simple-form .radio-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}

.simple-form .radio-group label {
  font-weight: 400;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.simple-form .checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  margin: 16px 0;
}

.simple-form .checkbox-row input {
  margin-top: 3px;
}

.simple-form .submit-btn {
  background: #0d4a8f;
  color: #fff;
  border: none;
  padding: 13px 24px;
  font-size: 16px;
  border-radius: 8px;
  cursor: pointer;
  width: 100%;
  font-weight: 700;
}

.simple-form .submit-btn:hover {
  background: #0a3a70;
}

.simple-form .note {
  font-size: 12px;
  color: #777;
  margin-top: 8px;
}

.simple-form .error {
  color: #c00;
  font-size: 13px;
  margin-top: 4px;
  display: none;
}

.simple-form .error.visible {
  display: block;
}

.simple-form .hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
}

/* Header */
.site-header {
  background: #fff;
  color: var(--text);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 3px solid var(--accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, .06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-weight: 700;
  font-size: 15px;
  color: var(--primary);
}

.brand-sub {
  font-size: 12px;
  color: var(--muted);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--primary-dark);
  text-decoration: none;
  font-size: 14px;
}

.main-nav a:hover {
  text-decoration: underline;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-size: 15px;
}

.btn:hover {
  background: #cf7d08;
  text-decoration: none;
  color: #fff;
}

.btn-lg {
  padding: 13px 24px;
  font-size: 16px;
}

/* Hero */
.hero {
  background: linear-gradient(180deg, var(--bg-soft), #ffffff);
  color: var(--text);
  padding: 56px 0 64px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 40px;
  align-items: center;
}

.badge {
  display: inline-block;
  background: #e8f0fa;
  border: 1px solid #bcd3ea;
  color: var(--primary-dark);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 13px;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: 30px;
  line-height: 1.25;
  margin-bottom: 14px;
  color: var(--primary);
}

.hero-lead {
  font-size: 16px;
  color: #333;
  margin-bottom: 24px;
}

.hero-meta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.meta-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 14px;
}

.meta-item strong {
  display: block;
  font-size: 17px;
  color: var(--primary);
}

.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.stat-card {
  background: #fff;
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: 0 4px 18px rgba(13, 74, 143, .08);
}

.stat-card strong {
  display: block;
  font-size: 24px;
  color: var(--primary);
}

.stat-card span {
  font-size: 14px;
  color: #333;
}

/* Sections */
.section {
  padding: 56px 0;
}

.section-alt {
  background: var(--bg-soft);
}

.section h2 {
  font-size: 24px;
  margin-bottom: 24px;
  color: var(--primary);
}

.benefits {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.benefit {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.benefit h3 {
  font-size: 16px;
  margin-bottom: 6px;
  color: var(--dark);
}

.benefit p {
  font-size: 14px;
  color: #444;
}

.program-list {
  list-style: none;
  counter-reset: prog;
}

.program-list li {
  counter-increment: prog;
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid #e3e9ef;
  font-size: 15px;
}

.program-list li::before {
  content: counter(prog);
  flex: 0 0 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.terms {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.term {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.term strong {
  display: block;
  color: var(--primary-dark);
  margin-bottom: 4px;
}

.term span {
  font-size: 14px;
  color: #444;
}

.price-note {
  margin-top: 20px;
  padding: 14px 18px;
  background: #fff7e8;
  border: 1px solid #f0d9a0;
  border-radius: var(--radius);
  font-size: 14px;
}

.site-footer {
  background: var(--dark);
  color: #cfd9df;
  padding: 28px 0;
  font-size: 14px;
}

.site-footer a {
  color: #ffd88a;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 820px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .benefits {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    grid-template-columns: 1fr;
  }
}