/* ============================================================
   TOGGLE TABS — Binary or multi-option mode switcher for
   workflows that offer alternate lookup/input methods.

   Two visual variants via modifier on the container:

   DEFAULT (warm surface active):
   <div class="toggle-tabs">
     <button class="toggle-tab toggle-tab--active">By Name</button>
     <button class="toggle-tab">By Confirmation #</button>
   </div>

   FILLED (primary background active):
   <div class="toggle-tabs toggle-tabs--filled">
     <button class="toggle-tab toggle-tab--active">By Name</button>
     <button class="toggle-tab">By Confirmation #</button>
   </div>

   ICON VARIANT (optional SVG icon before label):
   <button class="toggle-tab">
     <svg class="toggle-tab__icon"><use href="#icon-search"/></svg>
     Search
   </button>
   ============================================================ */

/* ── Container ── */
.toggle-tabs {
  display: flex;
  flex-direction: row;
  justify-content: center;
  margin-bottom: 24px;
  border: 1px solid var(--color-border);
}

/* ── Individual tab ── */
.toggle-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 24px;
  border: none;
  border-radius: 0;
  background: var(--color-surface-base);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

/* ── Adjacent border collapse ── */
.toggle-tab + .toggle-tab {
  border-left: 1px solid var(--color-border);
}

/* ── Active state (default: warm surface) ── */
.toggle-tab--active {
  background: var(--color-surface-warm);
  color: var(--color-primary);
  font-weight: 600;
}

/* ── Active state (filled variant: primary background) ── */
.toggle-tabs--filled .toggle-tab--active {
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-weight: 500;
}

/* ── Adjacent border hidden when next to active filled tab ── */
.toggle-tabs--filled .toggle-tab--active + .toggle-tab,
.toggle-tabs--filled .toggle-tab + .toggle-tab--active {
  border-left-color: var(--color-primary);
}

/* ── Focus ── */
.toggle-tab:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
  z-index: 1;
}

/* ── Disabled ── */
.toggle-tab:disabled {
  color: var(--color-disabled-text);
  cursor: default;
}

/* ── Icon inside tab ── */
.toggle-tab__icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* ── Responsive: compact at narrow widths ── */
@media (max-width: 360px) {
  .toggle-tab {
    padding: 10px 12px;
    font-size: 11px;
    letter-spacing: 0.04em;
  }
}