/* ─── Header ─── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 8, 10, 0.82);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border);
  padding: 0 32px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.header .logo {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text);
  transition: color 0.2s;
}
.header .logo:hover { color: var(--accent-soft); }
.header .sep {
  width: 1px;
  height: 20px;
  background: var(--border);
}
.header .subtitle {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  flex: 0 1 auto;
  min-width: 0;
  max-width: 100ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 8px 14px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s, box-shadow 0.2s;
}
.nav-link:hover {
  color: var(--text);
  background: var(--bg-elevated);
}
.nav-link.active {
  color: var(--text);
  background: var(--bg-elevated);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.random-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 34px;
  height: 34px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.random-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.random-btn svg {
  width: 16px;
  height: 16px;
}

.header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-bar {
  position: relative;
}
.search-bar input {
  font-family: var(--font-body);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 16px 9px 40px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 400;
  width: 260px;
  outline: none;
  transition: all 0.25s;
}
.search-bar input::placeholder { color: var(--text-muted); }
.search-bar input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: var(--bg-card);
}
.search-bar svg {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

@media (max-width: 768px) {
  .header { padding: 12px 16px; flex-wrap: wrap; height: auto; gap: 10px; }
  .search-bar input { width: 180px; }
  .nav-link { padding: 6px 10px; letter-spacing: 1px; }
}