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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--color-text);
  background:
    radial-gradient(circle at top left, rgba(31, 111, 255, 0.06), transparent 28%),
    linear-gradient(180deg, #f7f9fc 0%, var(--color-surface) 45%, #eef3f9 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--color-accent-strong);
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -3rem;
  z-index: 1000;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--color-night);
  color: var(--color-white);
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-4);
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.section {
  padding: var(--space-8) 0;
}

.section--tight {
  padding: var(--space-7) 0;
}

.eyebrow {
  margin: 0 0 var(--space-3);
  font-size: var(--fs-eyebrow);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-strong);
}

.section-title {
  margin: 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: var(--lh-tight);
  letter-spacing: -0.03em;
  color: var(--color-night);
}

.section-intro {
  margin: var(--space-4) 0 0;
  max-width: 42rem;
  font-size: var(--fs-lead);
  color: var(--color-text-muted);
}

.section-header {
  margin-bottom: var(--space-7);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 3rem;
  padding: 0.8rem 1.35rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font: inherit;
  font-weight: 650;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-out), background-color var(--duration) var(--ease-out),
    border-color var(--duration) var(--ease-out), color var(--duration) var(--ease-out),
    box-shadow var(--duration) var(--ease-out);
}

.btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
  color: inherit;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 10px 24px rgba(31, 111, 255, 0.28);
}

.btn--primary:hover {
  background: var(--color-accent-strong);
  color: var(--color-white);
}

.btn--secondary {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.28);
  color: var(--color-white);
}

.btn--secondary:hover {
  background: rgba(255, 255, 255, 0.14);
  color: var(--color-white);
}

.btn--ghost {
  background: var(--color-white);
  border-color: var(--color-border-strong);
  color: var(--color-night);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-strong);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.card-grid {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 720px) {
  .card-grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .card-grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .card-grid--4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .card-grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}