/* ========================================
   Base Styles — Typography & Globals
   ======================================== */

html {
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-body);
  font-size: var(--text-base);
  line-height: var(--line-height-body);
  letter-spacing: var(--letter-spacing-body);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  transition: background-color 0.5s ease, color 0.5s ease;
}

/* --- Headings --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-heading);
  letter-spacing: var(--letter-spacing-heading);
  line-height: var(--line-height-heading);
  color: var(--color-text-primary);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

@media (min-width: 768px) {
  h1 { font-size: var(--text-5xl); }
  h2 { font-size: var(--text-4xl); }
  h3 { font-size: var(--text-3xl); }
}

/* --- Body text --- */
p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

p:last-child {
  margin-bottom: 0;
}

/* --- Links --- */
a {
  transition: color var(--transition-speed-fast) ease;
}

a:hover {
  color: var(--color-cta-bg);
}

/* --- Selection --- */
::selection {
  background-color: var(--color-accent-1);
  color: #FFFFFF;
}

/* --- Focus styles --- */
:focus-visible {
  outline: 3px solid var(--color-accent-1);
  outline-offset: 3px;
  border-radius: 2px;
}

/* --- Section labels --- */
.section-label {
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-1);
  margin-bottom: var(--space-md);
}

/* --- Section headings --- */
.section-heading {
  margin-bottom: var(--space-lg);
}

/* --- Section subtext --- */
.section-subtext {
  font-family: var(--font-secondary);
  font-size: var(--text-lg);
  line-height: var(--line-height-body);
  color: var(--color-text-secondary);
  max-width: 640px;
}

/* --- Serif accent --- */
.text-accent {
  font-family: var(--font-secondary);
  font-style: italic;
}

/* --- Strong/emphasis --- */
strong, b {
  font-weight: var(--font-weight-bold);
}

em, i {
  font-style: italic;
}

/* --- Horizontal rule --- */
hr {
  border: none;
  height: 1px;
  background-color: var(--color-border-light);
  margin: var(--space-3xl) 0;
}