/* ============================================================
   FS25 Portal — Page frame: nav, page header, footer
   Depends on: 01-tokens.css, 02-base.css
   ============================================================ */

/* ============================================================
   Top bar
   ------------------------------------------------------------
   Reads as the machine's control strip: a flat olive panel, a
   hairline base, and an amber underscore marking the active
   station. No blur, no floating card.
   ============================================================ */

.main-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: var(--surface);
  border-bottom: var(--hairline) solid var(--border);
  box-shadow: var(--edge-light), var(--shadow-sm);
}

.nav-inner {
  height: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--s5);
  display: flex;
  align-items: center;
  gap: var(--s5);
}

/* ---------- Brand ----------
   Set as a stamped model designation: condensed caps, the amber
   plate carrying the machine number, the series name beside it. */

.nav-brand {
  display: inline-flex;
  align-items: baseline;
  gap: var(--s2);
  flex-shrink: 0;
  color: var(--text);
}
.nav-brand:hover { color: var(--text); }

.brand-icon {
  font-family: var(--font-display);
  font-size: var(--fs-base);
  font-weight: 700;
  letter-spacing: var(--track-plate);
  text-transform: uppercase;
  color: var(--bg);
  background: var(--amber);
  padding: 3px var(--s2) 2px;
  border-radius: var(--r-sm);
  line-height: 1.15;
}

.brand-icon.large {
  font-size: var(--fs-lg);
  padding: var(--s1) var(--s3) 3px;
}

.brand-text {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--track-caps);
  color: var(--text-dim);
}

/* ---------- Primary links ---------- */

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--s1);
  height: 100%;
  flex: 1 1 auto;
  min-width: 0;
}

.nav-links > a {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--s2);
  height: 100%;
  padding: 0 var(--s3);
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--track-caps);
  color: var(--text-dim);
  white-space: nowrap;
  transition: color var(--t) var(--ease);
}

.nav-links > a svg { opacity: 0.6; transition: opacity var(--t) var(--ease); }
.nav-links > a:hover { color: var(--text); }
.nav-links > a:hover svg { opacity: 1; }

/* Active station: an amber underscore seated on the nav's base rule. */
.nav-links > a.active { color: var(--amber); }
.nav-links > a.active svg { opacity: 1; }
.nav-links > a.active::after {
  content: '';
  position: absolute;
  left: var(--s3);
  right: var(--s3);
  bottom: -1px;
  height: 2px;
  background: var(--amber);
}

/* ---------- Right cluster ---------- */

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--s2);
  flex-shrink: 0;
}

.nav-search {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-search svg {
  position: absolute;
  left: var(--s2);
  /* Absolutely positioned, so the flex container's align-items can't centre
     it — it needs doing explicitly or the icon sits at the top edge and
     clips the text. */
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-faint);
  pointer-events: none;
}

.nav-search input {
  width: 150px;
  /* Symmetric padding keeps centred text truly centred and clear of the
     icon at either end. */
  padding: var(--s2) 30px;
  text-align: center;
  background: var(--bg-sunk);
  border: var(--hairline) solid var(--border);
  border-radius: var(--r);
  color: var(--text);
  font-size: var(--fs-sm);
  transition: width var(--t-slow) var(--ease), border-color var(--t) var(--ease);
}

.nav-search input:focus {
  width: 210px;
  border-color: var(--amber-line);
  outline: none;
}

.nav-icon-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--r);
  color: var(--text-dim);
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}

.nav-icon-btn:hover,
.nav-icon-btn.active {
  background: var(--surface-2);
  color: var(--amber);
}

.notification-badge {
  position: absolute;
  top: 1px;
  right: 1px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--bg);
  background: var(--amber);
  border: 2px solid var(--surface);
  border-radius: var(--r-pill);
}

/* ---------- Avatar + dropdown ---------- */

.nav-user-dropdown { position: relative; }

.nav-avatar-link {
  display: block;
  border-radius: var(--r);
  padding: 0;
  line-height: 0;
}

.nav-avatar,
.nav-avatar-img {
  width: 32px;
  height: 32px;
  border-radius: var(--r);
  border: var(--hairline) solid var(--border-strong);
  object-fit: cover;
  transition: border-color var(--t) var(--ease);
}

.nav-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--bg);
  background: var(--amber);
}

.nav-avatar-link:hover .nav-avatar,
.nav-avatar-link:hover .nav-avatar-img { border-color: var(--amber); }

.dropdown-menu,
.lang-dropdown {
  position: absolute;
  top: calc(100% + var(--s2));
  right: 0;
  min-width: 200px;
  padding: var(--s1);
  background: var(--surface-3);
  border: var(--hairline) solid var(--border-strong);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease), visibility var(--t);
  z-index: 110;
}

.nav-user-dropdown:hover .dropdown-menu,
.nav-user-dropdown:focus-within .dropdown-menu,
.lang-selector.open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--s3);
  width: 100%;
  padding: var(--s2) var(--s3);
  border-radius: var(--r);
  font-size: var(--fs-sm);
  color: var(--text-dim);
  text-align: left;
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}

.dropdown-item:hover { background: var(--surface-2); color: var(--text); }
.dropdown-item svg { opacity: 0.7; flex-shrink: 0; }
.dropdown-item.danger { color: var(--red); }
.dropdown-item.danger:hover { background: var(--red-soft); color: var(--red); }

.dropdown-badge {
  margin-left: auto;
  min-width: 18px;
  padding: 1px var(--s1);
  font-family: var(--font-mono);
  font-size: 10px;
  text-align: center;
  color: var(--bg);
  background: var(--amber);
  border-radius: var(--r-pill);
}

.dropdown-divider {
  height: var(--hairline);
  margin: var(--s1) var(--s2);
  background: var(--border);
}

/* ---------- Language selector ---------- */

.lang-selector { position: relative; }

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s1);
  height: 34px;
  padding: 0 var(--s2);
  border-radius: var(--r);
  color: var(--text-dim);
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}

.lang-btn:hover { background: var(--surface-2); color: var(--text); }

.nav-lang-code {
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: var(--track-caps);
}

.lang-dropdown {
  max-height: 320px;
  overflow-y: auto;
  min-width: 190px;
}

.lang-option {
  display: flex;
  align-items: center;
  gap: var(--s3);
  width: 100%;
  padding: var(--s2) var(--s3);
  border-radius: var(--r);
  font-size: var(--fs-sm);
  color: var(--text-dim);
  text-align: left;
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}

.lang-option:hover { background: var(--surface-2); color: var(--text); }
.lang-option.active { color: var(--amber); background: var(--amber-soft); }

/* ---------- Mobile toggle ---------- */

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--r);
  color: var(--text-dim);
}

.nav-toggle:hover { background: var(--surface-2); color: var(--text); }

/* ============================================================
   Page frame
   ============================================================ */

.page-content {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--s7) var(--s5) var(--s8);
  min-height: calc(100vh - var(--nav-height) - 120px);
}

/* Page header: an eyebrow rule, the title, then the subtitle.
   The tramline under it separates chrome from content. */
.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s5);
  flex-wrap: wrap;
  margin-bottom: var(--s6);
  padding-bottom: var(--s4);
  border-bottom: var(--hairline) solid var(--border);
  position: relative;
}

/* second tramline rule */
.page-header::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: -3px;
  height: var(--hairline);
  background: var(--border-faint);
}

.page-header h1 {
  font-size: var(--fs-xl);
  text-transform: uppercase;
  letter-spacing: var(--track-caps);
}

.page-subtitle {
  margin-top: var(--s1);
  font-size: var(--fs-sm);
  color: var(--text-dim);
  max-width: 60ch;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--s2);
  flex-wrap: wrap;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--s2);
  margin-bottom: var(--s4);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-faint);
}

.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--amber); }

/* ============================================================
   Footer
   ============================================================ */

.site-footer {
  border-top: var(--hairline) solid var(--border);
  background: var(--surface);
  margin-top: var(--s8);
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--s5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s4);
  flex-wrap: wrap;
  font-size: var(--fs-xs);
  color: var(--text-faint);
}

/* When the footer has only one thing in it (no Discord link configured),
   space-between has nothing to space, so centre it instead of leaving it
   pinned to one edge. */
.footer-inner > :only-child { margin-inline: auto; }

.footer-links { display: flex; align-items: center; gap: var(--s4); }

.footer-copyright { margin: 0; }

.footer-discord-link {
  display: inline-flex;
  align-items: center;
  gap: var(--s2);
  color: var(--text-dim);
  font-size: var(--fs-sm);
}

.footer-discord-link:hover { color: var(--amber); }

/* ============================================================
   Responsive — co-located, not in a global dumping ground
   ============================================================ */

@media (max-width: 1080px) {
  .nav-search input { width: 120px; }
  .nav-search input:focus { width: 170px; }
  .nav-links > a { padding: 0 var(--s2); font-size: var(--fs-base); }
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; order: 3; }
  .nav-search { display: none; }
  .brand-text { display: none; }

  .nav-inner { gap: var(--s3); }

  .nav-links {
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    height: auto;
    gap: 0;
    padding: var(--s2);
    background: var(--surface-3);
    border-bottom: var(--hairline) solid var(--border-strong);
    box-shadow: var(--shadow-lg);
    display: none;
  }

  .nav-links.open { display: flex; }

  .nav-links > a {
    height: auto;
    padding: var(--s3);
    border-radius: var(--r);
    font-size: var(--fs-md);
  }

  .nav-links > a.active { background: var(--amber-soft); }
  .nav-links > a.active::after { display: none; }
}

@media (max-width: 600px) {
  .nav-inner,
  .container,
  .page-content { padding-left: var(--s4); padding-right: var(--s4); }

  .page-content { padding-top: var(--s5); }

  .page-header {
    align-items: flex-start;
    flex-direction: column;
    gap: var(--s3);
  }

  .page-header h1 { font-size: var(--fs-lg); }

  .footer-inner { flex-direction: column; align-items: flex-start; }
}