/* ============================================================
   base.css — Kallisto Portfolio Site
   Global typography, body, layout utilities
   ============================================================ */

html {
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text);
  line-height: 1.15;
}

p {
  line-height: 1.7;
  color: var(--color-text-muted);
}

a {
  transition: color var(--transition-base);
}

em {
  font-style: italic;
}

/* ── Layout ── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-2xl);
}

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

/* ── Background variants ── */
.bg-alt  { background-color: var(--color-bg-alt); }
.bg-dark { background-color: var(--color-dark-bg); }

/* ── Scrollbar ── */
::-webkit-scrollbar          { width: 4px; }
::-webkit-scrollbar-track    { background: var(--color-secondary); }
::-webkit-scrollbar-thumb    { background: var(--color-accent); border-radius: var(--radius-pill); }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary); }

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

/* ── Selection ── */
::selection {
  background: var(--color-accent);
  color: var(--color-secondary);
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Responsive container ── */
@media (max-width: 768px) {
  .container { padding: 0 var(--space-lg); }
  .section   { padding: 4rem 0; }
}