/* =============================================================
   BASE — base.css
   Reset, global defaults, typography base.
   ============================================================= */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  /* Offset anchors so fixed nav doesn't overlap section headers */
  scroll-padding-top: var(--nav-h);
}

body {
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* Shared section header row */
.sec-hdr {
  display: flex;
  align-items: stretch;
  border-bottom: 1px solid var(--rule);
}

.sec-ttl-wrap {
  padding: 28px var(--space-lg);
  flex: 1;
  display: flex;
  align-items: center;
}

.sec-ttl {
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink);
}

.sec-aside {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--gray);
  padding: 28px var(--space-lg);
  border-left: 1px solid var(--rule);
  display: flex;
  align-items: center;
}

.sec-aside a {
  color: var(--accent);
}

/* Shared buttons */
.btn-dark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--ink);
  padding: 14px 28px;
  border: 1px solid var(--ink);
  transition: background 0.2s, border-color 0.2s;
}

.btn-dark:hover {
  background: var(--accent);
  border-color: var(--accent);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  padding: 14px 28px;
  border: 1px solid var(--ink);
  transition: background 0.2s, color 0.2s;
}

.btn-outline:hover {
  background: var(--ink);
  color: var(--white);
}

/* Scroll fade-up animation */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}