/* Mega footer (site map + verification) */

.footer {
  /*
    Closing scene: a deliberate dark, editorial footer even in light theme.
    Override local palette so the footer is unmistakably a distinct region.
  */
  --bg: #05070d;
  --bg-2: #080f1d;
  --text: rgba(248, 250, 255, 0.97);
  --muted: rgba(248, 250, 255, 0.78);
  --faint: rgba(248, 250, 255, 0.6);
  --border: rgba(255, 255, 255, 0.12);
  --ink-solid: #f8faff;

  --paper: var(--bg);
  --panel-1: color-mix(in srgb, var(--paper) 94%, var(--ink-solid) 6%);
  --panel-2: color-mix(in srgb, var(--paper) 90%, var(--ink-solid) 10%);
  --panel-3: color-mix(in srgb, var(--paper) 86%, var(--ink-solid) 14%);
  --panel-border: color-mix(in srgb, var(--paper) 75%, var(--ink-solid) 25%);

  --shadow-sm: 0 10px 30px rgba(0, 0, 0, 0.28);
  --shadow-md: 0 18px 55px rgba(0, 0, 0, 0.36);
  --shadow-lg: 0 28px 90px rgba(0, 0, 0, 0.58);

  /* Link hover should brighten on dark backgrounds even if the page is light-themed. */
  --link-hover: color-mix(in srgb, var(--link) 68%, #ffffff);

  padding: var(--space-16) 0 var(--space-12);
  border-top: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  margin-top: var(--space-16);
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(1200px 700px at 12% 0%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 62%),
    radial-gradient(1200px 700px at 92% 10%, color-mix(in srgb, var(--accent-3) 12%, transparent), transparent 64%),
    linear-gradient(180deg, var(--bg), color-mix(in srgb, var(--bg) 80%, var(--bg-2)));
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--border) 70%, transparent);
}

.footer-mega {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

.footer-hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  position: relative;
  border-radius: var(--radius-lg);
  padding: var(--space-10);
  box-shadow: var(--shadow-lg);
  border: 1px solid transparent;
  background:
    radial-gradient(
        1100px 720px at 10% 0%,
        color-mix(in srgb, var(--accent) 16%, transparent),
        transparent 62%
      )
      padding-box,
    radial-gradient(
        1100px 720px at 92% 10%,
        color-mix(in srgb, var(--accent-2) 14%, transparent),
        transparent 64%
      )
      padding-box,
    linear-gradient(180deg, var(--panel-2), var(--panel-1)) padding-box,
    conic-gradient(
        from 180deg at 50% 50%,
        color-mix(in srgb, var(--accent) 35%, transparent),
        color-mix(in srgb, var(--accent-2) 28%, transparent),
        color-mix(in srgb, var(--accent-3) 24%, transparent),
        color-mix(in srgb, var(--accent) 35%, transparent)
      )
      border-box;
  overflow: hidden;
}

.footer-hero::before {
  content: "VD";
  position: absolute;
  right: 1.2rem;
  top: -0.4rem;
  font-family: var(--font-serif);
  font-weight: 900;
  letter-spacing: -0.08em;
  font-size: clamp(4.5rem, 6.2vw, 7.5rem);
  color: color-mix(in srgb, var(--text) 7%, transparent);
  pointer-events: none;
  user-select: none;
}

.footer-hero-main {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: flex-start;
}

.footer-hero-kicker {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--text) 82%, var(--muted));
  border: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent);
  background: var(--panel-1);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  box-shadow: var(--shadow-sm);
}

.footer-hero-title {
  font-family: var(--font-serif);
  font-weight: 860;
  letter-spacing: -0.03em;
  font-size: clamp(2.05rem, 2.2vw + 1.25rem, 2.65rem);
  line-height: 1.05;
}

.footer-hero-text {
  margin: 0;
  font-size: var(--text-lg);
  color: color-mix(in srgb, var(--text) 84%, var(--muted));
  max-width: 70ch;
}

.footer-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.footer-hero-meta {
  font-size: var(--text-sm);
}

.footer-hero-meta a {
  color: var(--link);
  text-decoration: none;
}

.footer-hero-meta a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

.footer-hero-aside {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  border-left: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent);
  padding-left: var(--space-8);
}

.footer-proof-title,
.footer-reading-title {
  font-family: var(--font-serif);
  font-weight: 820;
  letter-spacing: -0.02em;
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}

.footer-proof-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 0.65rem;
}

.footer-proof-pill {
  grid-column: span 6;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.7rem 0.75rem;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent);
  background: var(--panel-1);
  text-decoration: none;
  color: color-mix(in srgb, var(--text) 86%, var(--muted));
  box-shadow: var(--shadow-sm);
}

.footer-proof-pill:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--border) 70%, var(--accent));
}

.footer-proof-label {
  font-weight: 760;
  letter-spacing: -0.01em;
}

.footer-proof-note {
  font-size: var(--text-xs);
  color: var(--muted);
}

.footer-proof-more {
  grid-column: span 12;
  font-size: var(--text-xs);
  color: var(--muted);
  text-decoration: none;
  padding: 0.25rem 0.1rem;
}

.footer-proof-more:hover {
  color: var(--text);
  text-decoration: underline;
}

.footer-reading-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-reading-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 0.85rem;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent);
  background: var(--panel-1);
  text-decoration: none;
  color: color-mix(in srgb, var(--text) 86%, var(--muted));
  box-shadow: var(--shadow-sm);
}

.footer-reading-item:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--border) 70%, var(--accent));
}

.footer-reading-item-title {
  font-weight: 760;
  letter-spacing: -0.01em;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

.footer-reading-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.75rem;
}

.footer-link-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent);
  background: var(--panel-1);
  text-decoration: none;
  color: color-mix(in srgb, var(--text) 84%, var(--muted));
  font-size: var(--text-xs);
}

.footer-link-pill:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--border) 70%, var(--accent));
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 0;
  border-radius: var(--radius-lg);
  border: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent);
  overflow: hidden;
  background: linear-gradient(180deg, var(--panel-2), var(--panel-1));
}

.footer-col {
  grid-column: span 3;
  border: none;
  background: transparent;
  box-shadow: none;
  padding: 1.25rem 1.25rem 1.15rem;
}

.footer-col:nth-child(1) {
  grid-column: span 4;
}

.footer-col:nth-child(2),
.footer-col:nth-child(3) {
  grid-column: span 3;
}

.footer-col:nth-child(4) {
  grid-column: span 2;
}

.footer-col:not(:first-child) {
  border-left: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent);
}

.footer-title {
  margin: 0 0 0.55rem;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.footer-links a {
  color: color-mix(in srgb, var(--text) 84%, var(--muted));
  text-decoration: none;
  border-bottom: 1px solid transparent;
  width: fit-content;
}

.footer-links a:hover {
  color: var(--text);
  border-bottom-color: color-mix(in srgb, var(--border) 60%, var(--accent));
}

.footer-mini {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.85rem;
}

.footer-mini-link {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent);
  background: var(--panel-1);
  text-decoration: none;
  color: color-mix(in srgb, var(--text) 82%, var(--muted));
  font-size: var(--text-xs);
  max-width: 18ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.footer-mini-link:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--border) 70%, var(--accent));
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  border-top: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
  font-size: var(--text-xs);
}

.footer-legal a {
  color: var(--muted);
  text-decoration: none;
}

.footer-legal a:hover {
  color: color-mix(in srgb, var(--text) 78%, var(--muted));
  text-decoration: underline;
}

.footer-properties {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  justify-content: flex-end;
}

.footer-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent);
  background: var(--panel-1);
  text-decoration: none;
  color: color-mix(in srgb, var(--text) 82%, var(--muted));
  font-size: var(--text-xs);
}

.footer-pill:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--border) 70%, var(--accent));
}

.footer-disclaimer {
  font-size: var(--text-xs);
}

@media (max-width: 900px) {
  .footer-hero {
    grid-template-columns: 1fr;
  }
  .footer-hero-aside {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent);
    padding-top: var(--space-8);
  }
  .footer-proof-pill {
    grid-column: span 12;
  }
  .footer-col {
    grid-column: span 12;
  }
  .footer-col:not(:first-child) {
    border-left: none;
    border-top: 1px solid color-mix(in srgb, var(--panel-border) 70%, transparent);
  }
  .footer-properties {
    justify-content: flex-start;
  }
}