:root {
  --background: #f5f9ff;
  --surface: #ffffff;
  --primary: #2f6fed;
  --primary-dark: #1f4fbf;
  --light-blue: #e8f1ff;
  --text-primary: #102a43;
  --text-secondary: #5b6b7a;
  --border: #d8e6f8;
  --success: #126b3a;
  --error: #a43232;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--background);
  color: var(--text-primary);
  line-height: 1.55;
}

body {
  margin: 0;
  min-width: 320px;
}

a {
  color: var(--primary-dark);
  font-weight: 700;
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.header-inner,
.section {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 1.15rem;
  font-weight: 800;
}

.brand img {
  width: 42px;
  height: 42px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.nav a {
  text-decoration: none;
  font-size: 0.95rem;
}

.language-switch {
  display: inline-flex;
  gap: 6px;
  padding: 4px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--light-blue);
}

.language-switch button {
  min-height: 34px;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--primary-dark);
  font-size: 0.85rem;
  font-weight: 800;
}

.language-switch button.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.hero {
  padding: 72px 0 56px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 28px;
  align-items: center;
}

h1,
h2,
h3 {
  line-height: 1.15;
  margin: 0 0 16px;
}

h1 {
  font-size: clamp(2.4rem, 7vw, 5rem);
  letter-spacing: 0;
}

h2 {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
}

h3 {
  font-size: 1.25rem;
}

p {
  margin: 0 0 14px;
}

.lead {
  color: var(--text-secondary);
  font-size: 1.25rem;
  max-width: 760px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 8px;
  background: var(--primary);
  color: #ffffff;
  border: 1px solid var(--primary);
  text-decoration: none;
  font-weight: 800;
}

.button.secondary {
  background: var(--light-blue);
  color: var(--primary-dark);
  border-color: var(--border);
}

.panel,
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 28px rgba(47, 111, 237, 0.08);
}

.panel {
  padding: 24px;
}

.phone-panel {
  display: grid;
  gap: 12px;
}

.notification-row {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  background: var(--light-blue);
}

.notification-row strong {
  display: block;
}

.muted {
  color: var(--text-secondary);
}

.section {
  padding: 38px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  padding: 20px;
}

.policy-content {
  max-width: 860px;
}

.policy-content ul,
.policy-content ol {
  padding-left: 22px;
}

.notice {
  border-left: 4px solid var(--primary);
  padding: 14px 16px;
  background: var(--light-blue);
  border-radius: 8px;
  margin: 18px 0;
}

.form {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  color: var(--text-primary);
  font: inherit;
}

textarea {
  min-height: 128px;
  resize: vertical;
}

button {
  min-height: 50px;
  border: 0;
  border-radius: 8px;
  background: var(--primary);
  color: #ffffff;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

button:disabled {
  cursor: progress;
  opacity: 0.75;
}

.result {
  min-height: 48px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.result.success {
  border-color: rgba(18, 107, 58, 0.35);
  color: var(--success);
}

.result.error {
  border-color: rgba(164, 50, 50, 0.35);
  color: var(--error);
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  margin-top: 48px;
}

.site-footer .section {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 24px 0;
}

@media (max-width: 780px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    justify-content: flex-start;
  }

  .header-actions {
    align-items: flex-start;
    justify-content: flex-start;
  }

  .hero {
    padding-top: 44px;
  }

  .hero-grid,
  .grid {
    grid-template-columns: 1fr;
  }
}