/* ==========================================================================
   Header icon toggles — single dynamic button each: theme (sun/moon) + lang (flag)
   Drawer still uses .toggle-row labels + same .icon-btn controls
   ========================================================================== */

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  padding: 0;
  background-color: var(--surface);
  border: 2px solid var(--stroke);
  box-shadow: var(--sh-xs);
  cursor: pointer;
  color: var(--ink);
  -webkit-tap-highlight-color: transparent;
  transition: box-shadow var(--dur-quick) var(--ease),
              transform   var(--dur-quick) var(--ease),
              background-color var(--dur) var(--ease);
}

.icon-btn:active {
  transform: translate(2px, 2px);
  box-shadow: var(--sh-press);
}

@media (hover: hover) {
  .icon-btn:hover {
    background-color: var(--bg-soft);
  }
}

/* ---- Theme: moon = light mode active (click → dark), sun = dark active ---- */

.icon-btn__glyph--theme {
  position: relative;
  width: 22px;
  height: 22px;
}

.icon-btn__moon,
.icon-btn__sun {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--dur) var(--ease);
}

.icon-btn__moon svg,
.icon-btn__sun svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

/* Light mode: show moon (switch to dark) */
.icon-btn--theme[aria-pressed="false"] .icon-btn__sun { opacity: 0; pointer-events: none; }
.icon-btn--theme[aria-pressed="false"] .icon-btn__moon { opacity: 1; }

/* Dark mode: show sun (switch to light) */
.icon-btn--theme[aria-pressed="true"] .icon-btn__moon { opacity: 0; pointer-events: none; }
.icon-btn--theme[aria-pressed="true"] .icon-btn__sun { opacity: 1; }

/* ---- Language: current locale flag (PNG assets, circular crop) ---------- */

.icon-btn--lang .icon-btn__flag {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  flex-shrink: 0;
  pointer-events: none;
}

/* ---- Drawer row labels --------------------------------------------------- */

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
}

.toggle-row__label {
  font-family: var(--ff-mono);
  font-size: var(--fs-caption);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  color: var(--ink-dim);
}