/* ==============================================================================
   DECODER · ECU LAB — Top Header & Brand Bar
   web/components/header.css
   Aligned with UI Concepts (#kit) Glassmorphism
   ============================================================================== */
.top-header {
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
  display: grid;
  gap: 10px;
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-unit);
  white-space: nowrap;
  letter-spacing: .08em;
  font: 700 var(--kit-heading)/1.2 var(--mono);
  color: var(--text);
}
.brand-dot {
  color: var(--cyan);
  text-shadow: 0 0 6px var(--cyan);
}
/* --- Capsule Segmented Control (Language switcher) --- */
.segment {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 3px;
  gap: 3px;
  border: 1px solid var(--ui-edge);
  border-radius: var(--ui-radius-button);
  background: var(--ui-face);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 0 var(--glass-highlight);
}
.segment-button {
  position: relative;
  z-index: 1;
  border: 0;
  border-radius: var(--ui-radius-button);
  min-height: 26px;
  padding: 4px 8px;
  background: transparent;
  color: var(--muted);
  font: 500 var(--kit-meta)/1.3 var(--mono);
  letter-spacing: .04em;
  cursor: pointer;
  transition: background .16s, color .16s, box-shadow .16s;
}
.segment-button:hover:not(.active) {
  color: var(--ui-accent);
}
.segment-button.active {
  color: var(--ui-accent);
}
.segment::before {
  box-sizing: border-box;
  content: '';
  position: absolute;
  z-index: 0;
  left: 3px;
  top: 3px;
  bottom: 3px;
  width: calc((100% - 9px) / 2);
  border: 1px solid color-mix(in srgb, var(--ui-accent) 22%, var(--ui-edge));
  border-radius: var(--ui-radius-button);
  background: linear-gradient(135deg, rgba(255,255,255,.16), transparent 80%), var(--ui-face);
  box-shadow: inset 0 1px 0 var(--glass-highlight), 0 2px 8px -4px var(--shadow);
  transition: transform var(--motion-normal) cubic-bezier(.2,.8,.2,1);
  pointer-events: none;
}
.segment:has([data-locale="en"].active)::before {
  transform: translateX(calc(100% + 3px));
}
.segment-button:focus-visible {
  outline: 2px solid var(--ui-accent);
  outline-offset: -2px;
}
@media (prefers-reduced-motion: reduce) {
  .segment::before { transition: none; }
}
/* --- Telemetry Balance Group --- */
.balance {
  color: var(--muted);
  font: 600 var(--kit-meta)/1.4 var(--mono);
  white-space: nowrap;
  letter-spacing: .02em;
}
#app .header-actions {
  flex-wrap: wrap;
}
#app #user-identity {
  min-width: 0;
  max-width: 100%;
  white-space: normal;
  overflow-wrap: anywhere;
}
.balance strong:first-of-type {
  color: var(--amber);
  text-shadow: 0 0 4px color-mix(in srgb, var(--amber) 35%, transparent);
}
.balance strong:last-of-type {
  color: var(--cyan);
  text-shadow: 0 0 4px color-mix(in srgb, var(--cyan) 35%, transparent);
}
.slash {
  color: var(--border);
  margin: 0 3px;
}
.footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 2px 0;
  color: var(--muted);
  font: var(--kit-meta)/1.4 var(--mono);
  letter-spacing: .03em;
}
.footer a {
  color: var(--cyan);
  text-decoration: none;
}
.footer a:hover {
  text-decoration: underline;
}
@media (max-width: 560px) {
  #app .brand {
    min-width: 0;
    flex-wrap: wrap;
  }
  #app .top-header > .header-row > .button-group {
    flex-shrink: 0;
  }
  #app .header-actions {
    align-items: flex-start;
  }
  #app .balance-group {
    min-width: 0;
    max-width: 100%;
    margin-left: auto;
    align-items: flex-end;
    flex-direction: column;
    gap: var(--space-half);
  }
  #app .balance {
    white-space: normal;
    overflow-wrap: anywhere;
  }
}
@media (max-width: 360px) {
  #app .top-header > .header-row {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-unit);
  }
  #app .top-header > .header-row > .button-group {
    justify-content: flex-end;
  }
  #app #user-identity {
    align-self: flex-start;
  }
  #app .balance-group {
    width: 100%;
    align-items: stretch;
    gap: var(--space-unit);
  }
}