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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background: radial-gradient(120% 120% at 50% 0%, rgba(37, 99, 235, 0.08), transparent 50%), var(--color-background);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

main {
  position: relative;
  z-index: 1;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-family-headings);
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-primary);
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: var(--font-size-h1);
}

h2 {
  font-size: var(--font-size-h2);
}

h3 {
  font-size: var(--font-size-h3);
}

p {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.lead {
  font-size: 1.1rem;
  line-height: 1.9;
  color: var(--color-text-muted);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.18em;
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast), opacity var(--transition-fast);
}

a:hover,
a:focus {
  color: var(--color-accent-strong);
  text-decoration-color: var(--color-accent-strong);
}

a[target="_blank"]::after {
  content: "↗";
  display: inline-block;
  margin-left: 0.35em;
  font-size: 0.8em;
  opacity: 0.6;
}

ul,
ol {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  padding-left: 1.5rem;
}

/*li + li {
  margin-top: 0.35rem;
}*/

strong,
b {
  font-weight: 600;
}

em,
i {
  font-style: italic;
}

small {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--spacing-lg) auto;
  max-width: 5rem;
}

/* Blockquotes */
blockquote {
  position: relative;
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-lg);
  background: var(--color-surface);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-small);
  color: var(--color-text-muted);
}

blockquote::before {
  content: "“";
  position: absolute;
  top: -1.5rem;
  left: 1.5rem;
  font-size: 5rem;
  color: var(--color-border-strong);
  opacity: 0.2;
}

cite {
  display: block;
  margin-top: var(--spacing-sm);
  font-style: normal;
  font-weight: 600;
  color: var(--color-primary);
}

/* Code */
code,
pre {
  font-family: var(--font-family-monospace);
  background-color: var(--color-surface-alt);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-small);
  color: var(--color-secondary);
}

pre {
  padding: var(--spacing-sm);
  overflow-x: auto;
  margin-bottom: var(--spacing-md);
}

/* Buttons */
button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.9rem;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-strong));
  color: #ffffff;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.03em;
  font-size: 0.95rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  box-shadow: 0 14px 32px rgba(37, 99, 235, 0.25);
}

button:hover,
.button:hover {
  background: linear-gradient(135deg, var(--color-accent-strong), var(--color-accent));
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(29, 78, 216, 0.32);
}

.button.button--ghost {
  background: transparent;
  color: #ffffff;
  box-shadow: none;
  border: 1px solid rgba(255, 255, 255, 0.45);
  padding-left: 1.6rem;
  padding-right: 1.6rem;
}

.button.button--ghost:hover {
  background: rgba(255, 255, 255, 0.18);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.65);
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-medium);
}

/* Utility classes */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  text-decoration: none;
  z-index: 100;
  border-radius: var(--radius-pill);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
}