/* ===========================================================
   Code Olympiad 2081 - Dynamic Language Switcher demo
   A standalone widget demo in the Night Shift world.
   Token-driven only.
   =========================================================== */

/* ---------- Demo main ---------- */
.demo-main {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100svh - var(--nav-height));
  overflow: hidden;
  padding-block: var(--space-3xl);
}

.demo-main::before {
  content: "";
  position: absolute;
  top: -260px;
  left: 50%;
  transform: translateX(-50%);
  width: 640px;
  height: 560px;
  border-radius: var(--radius-full);
  background: radial-gradient(closest-side, var(--color-phosphor), transparent 72%);
  opacity: 0.06;
  pointer-events: none;
  z-index: -1;
}

/* ---------- Demo scene ---------- */
.demo-scene {
  width: min(560px, 100%);
  text-align: center;
}

.demo-scene__kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  padding: var(--space-2xs) var(--space-md);
  border: 1px solid var(--color-border-hairline);
  border-radius: var(--radius-full);
  background: var(--color-surface);
}

.demo-scene__title {
  margin-top: var(--space-md);
  font-family: var(--font-display);
  font-size: var(--text-heading);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

/* ---------- Language switcher widget ---------- */
.lang-widget {
  position: relative;
  display: inline-block;
  margin-top: var(--space-2xl);
}

.lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--text-sub);
  color: var(--color-text-primary);
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-surface);
  border: 2px solid color-mix(in srgb, var(--color-phosphor) 55%, transparent);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color var(--motion-base) var(--ease-touch),
    box-shadow var(--motion-base) var(--ease-touch);
}

.lang-switcher svg {
  width: var(--icon-sm);
  height: var(--icon-sm);
  color: var(--color-text-tertiary);
  transition: transform var(--motion-base) var(--ease-touch);
}

.lang-switcher[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

@media (hover: hover) {
  .lang-switcher:hover {
    border-color: var(--color-phosphor);
    box-shadow: 0 0 24px color-mix(in srgb, var(--color-phosphor) 22%, transparent);
  }
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + var(--space-sm));
  left: 50%;
  transform: translateX(-50%);
  width: 220px;
  display: none;
  flex-direction: column;
  gap: var(--space-2xs);
  padding: var(--space-xs);
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-float);
  z-index: 10;
}

.lang-dropdown[hidden] {
  display: none;
}

.lang-dropdown.is-open {
  display: flex;
}

.lang-dropdown button {
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--text-kicker);
  color: var(--color-text-secondary);
  background: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--motion-base) var(--ease-touch),
    color var(--motion-base) var(--ease-touch);
}

@media (hover: hover) {
  .lang-dropdown button:hover {
    background: color-mix(in srgb, var(--color-phosphor) 14%, transparent);
    color: var(--color-phosphor);
  }
}