:root {
  --color-navy: #0b1f3a;
  --color-blue: #1d4ed8;
  --color-blue-dark: #1e40af;
  --color-blue-soft: #eff4ff;
  --color-text: #101828;
  --color-text-muted: #475467;
  --color-text-soft: #667085;
  --color-border: #eaecf0;
  --color-surface: #ffffff;
  --color-surface-muted: #f8fafc;
  --color-error: #b42318;
  --color-error-soft: #fef3f2;
  --color-warning: #b54708;
  --color-warning-soft: #fffaeb;
  --color-notice: #175cd3;
  --color-notice-soft: #eff8ff;
  --color-success: #067647;
  --color-success-soft: #ecfdf3;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius: 10px;
  --radius-small: 6px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 8px 24px rgba(16, 24, 40, 0.06);
  --content-width: 1120px;
  --space-section: clamp(64px, 9vw, 112px);
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-surface);
}

h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

p {
  margin: 0;
}

a {
  color: var(--color-blue);
}

[hidden] {
  display: none !important;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  font: inherit;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(29, 78, 216, 0.35);
  outline-offset: 2px;
}

.button--primary {
  color: #ffffff;
  background: var(--color-blue);
}

.button--primary:hover {
  background: var(--color-blue-dark);
}

.button--secondary {
  color: var(--color-navy);
  background: var(--color-surface);
  border-color: #d0d5dd;
}

.button--secondary:hover {
  background: var(--color-surface-muted);
}

.button--small {
  min-height: 40px;
  padding: 0 16px;
  font-size: 14px;
}

.button:disabled {
  opacity: 0.6;
  cursor: wait;
}