/* base.css — page chrome, nav, tab containers, footer, grid overlay.
   Depends on tokens.css. */

* { box-sizing: border-box; }

html { font-size: 15px; }  /* internal dashboard density per tokens guide §3 */

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  position: relative;
  padding-top: var(--nav-height);
}

/* Peakstone signature: subtle teal grid behind everything. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--overlay-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--overlay-grid) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
}

.topnav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-height);
  background: var(--overlay-nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.topnav-inner {
  max-width: var(--container-max);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand {
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
  text-decoration: none;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand-logo {
  height: 24px;
  width: auto;
  display: block;
}
.brand-text { display: inline-flex; align-items: baseline; }
.brand-sep { color: var(--text-dim); margin: 0 6px; }
.brand-sub { color: var(--gold); }

.topnav-date {
  margin-left: auto;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm, 6px);
  background: var(--bg-card, transparent);
  white-space: nowrap;
}
.topnav-date-label {
  color: var(--text-dim);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.topnav-date-value {
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.tabs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 28px;
  height: 100%;
  align-items: center;
}

.tab-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 20px 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
.tab-link:hover { color: var(--text-primary); }
.tab-link.is-active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px var(--container-pad) 80px;
  position: relative;
  z-index: 1;
}

.tab-panel[hidden] { display: none; }

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 48px;
  padding: 32px var(--container-pad) 48px;
  color: var(--text-dim);
  font-size: 0.8rem;
  position: relative;
  z-index: 1;
}
.footer-inner { max-width: var(--container-max); margin: 0 auto; }
.footer-disclaimer { margin: 0 0 8px 0; color: var(--text-secondary); }
.footer-meta { margin: 0; }
.footer-meta .sep { margin: 0 10px; color: var(--text-dim); }
.footer-meta .mono { font-family: var(--font-mono); color: var(--text-secondary); }

/* Placeholder tabs — everything except #market until M2+. */
.placeholder {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  padding: 64px 32px;
  text-align: center;
}
.placeholder-title {
  margin: 0 0 8px 0;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-primary);
}
.placeholder-body {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9rem;
}