/* ==========================================================================
   Indigo Forge — shared site chrome (nav + footer)
   Loaded by BOTH the themable Classical content pages and the dark tool pages
   (explorer, investor portal), so navigation is identical everywhere.
   Every selector is `if-`-prefixed and nothing here touches body/h1/a, so it
   composes with classical.css and app.css without collisions.
   Dark is the site-wide default; `html[data-theme="light"]` (set by
   assets/theme.js on the content pages) reskins the chrome light.
   The `.if-chrome-dark` modifier pins the dark skin regardless of theme —
   the tool pages use it because they have no light mode at all.
   ========================================================================== */

.if-nav,
.if-footer {
  --if-chrome-bg: #14171a;
  --if-chrome-ink: #e9eef2;
  --if-chrome-accent: #f0a52a;
  --if-chrome-line: rgba(233, 238, 242, 0.10);
  --if-chrome-heading: "Cormorant Garamond", Georgia, serif;
  --if-chrome-body: "Lora", Georgia, serif;
}

:root[data-theme="light"] .if-nav:not(.if-chrome-dark),
:root[data-theme="light"] .if-footer:not(.if-chrome-dark) {
  --if-chrome-bg: #f3f2f2;
  --if-chrome-ink: #201f1d;
  --if-chrome-accent: #b68235;
  --if-chrome-line: color-mix(in srgb, #201f1d 16%, transparent);
}

.if-nav.if-chrome-dark,
.if-footer.if-chrome-dark {
  --if-chrome-bg: #14171a;
  --if-chrome-ink: #e9eef2;
  --if-chrome-accent: #f0a52a;
  --if-chrome-line: rgba(233, 238, 242, 0.10);
}

/* — navigation — */

.if-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 14px 24px;
  background: var(--if-chrome-bg);
  color: var(--if-chrome-ink);
  border-bottom: 1px solid var(--if-chrome-line);
  font-family: var(--if-chrome-body);
}

.if-nav__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: none;
  margin-right: 8px;
  text-decoration: none;
  color: inherit;
}

.if-nav__mark { width: 24px; height: 24px; flex: none; display: block; }
.if-nav__mark .ring { stroke: var(--if-chrome-accent); }
.if-nav__mark .glyph { fill: var(--if-chrome-ink); }

.if-nav__brand span {
  font-family: var(--if-chrome-heading);
  font-weight: 600;
  font-size: 16px;
  white-space: nowrap;
}

.if-nav__links {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.if-nav a {
  font-size: 14px;
  text-decoration: none;
  color: inherit;
  white-space: nowrap;
}

.if-nav__links a:hover,
.if-nav__portal:hover { color: var(--if-chrome-accent); }

.if-nav__links a[aria-current="page"],
.if-nav__portal[aria-current="page"] { color: var(--if-chrome-accent); }

.if-nav__portal {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: none;
}

.if-nav__portal svg { display: block; flex: none; }

.if-nav__lang {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border: 1px solid var(--if-chrome-line);
  border-radius: 3px;
}
.if-nav__lang:hover { color: var(--if-chrome-accent); border-color: var(--if-chrome-accent); }

/* Theme toggle — sun shown while dark (click for light), moon while light. */
.if-nav__theme {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  padding: 0;
  font: inherit;
  color: inherit;
  background: none;
  border: 1px solid var(--if-chrome-line);
  border-radius: 3px;
  cursor: pointer;
}
.if-nav__theme:hover { color: var(--if-chrome-accent); border-color: var(--if-chrome-accent); }
.if-nav__theme svg { display: block; flex: none; }
.if-nav__theme .moon { display: none; }
:root[data-theme="light"] .if-nav__theme .sun { display: none; }
:root[data-theme="light"] .if-nav__theme .moon { display: block; }

.if-nav a:focus-visible,
.if-nav__theme:focus-visible,
.if-footer a:focus-visible {
  outline: 2px solid var(--if-chrome-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Six items plus a brand will not fit a phone. Below the desktop breakpoint the
   row is allowed to wrap and the portal link gives up its auto margin, rather
   than overflowing the viewport. */
@media (max-width: 900px) {
  .if-nav { flex-wrap: wrap; gap: 12px 16px; padding: 12px 20px; }
  .if-nav__links { flex-wrap: wrap; gap: 12px 16px; }
  .if-nav__portal { margin-left: 0; }
}

/* — footer — */

.if-footer {
  border-top: 1px solid var(--if-chrome-line);
  background: var(--if-chrome-bg);
  padding: 28px 32px;
  font-family: var(--if-chrome-body);
  font-size: 12px;
  line-height: 1.6;
  color: color-mix(in srgb, var(--if-chrome-ink) 60%, transparent);
}

.if-footer p { margin: 0; }

.if-footer a { color: var(--if-chrome-accent); text-underline-offset: 3px; }

.if-footer__links {
  margin-top: 12px;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}