.btn-primary,
.btn-outline,
.btn-danger,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius);
  font: inherit;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border: none;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover:not(:disabled) {
  opacity: 0.92;
  transform: translateY(-1px);
}

.input,
input,
select,
textarea {
  font: inherit;
}

.input {
  width: 100%;
  padding: 10px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  outline: none;
  transition: var(--transition);
}

.input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: var(--surface);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.theme-toggle-fab {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  min-width: 0;
  height: 2.375rem;
  border-radius: var(--radius-full);
  background: var(--card);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  font-size: 0.6875rem;
  padding: 0.375rem 0.95rem;
  z-index: 90;
  cursor: pointer;
  transition: all var(--transition);
}

.theme-toggle-fab:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}

.language-dropdown {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 100;
}

.language-trigger {
  width: var(--floating-pill-width);
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 8px 8px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.375rem;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.language-trigger:hover {
  border-color: var(--primary);
}

.language-dropdown.open .language-trigger i {
  transform: rotate(180deg);
}

.language-menu {
  position: absolute;
  top: calc(100% + 0.4rem);
  right: 0;
  min-width: 420px;
  max-width: min(520px, calc(100vw - 2rem));
  max-height: min(70vh, 640px);
  overflow-y: auto;
  padding: 0.4rem;
  display: none;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: var(--shadow-lg);
}

.language-dropdown.open .language-menu {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.2rem;
}

.language-option {
  padding: 0.55rem 0.75rem;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 0.75rem;
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.language-option:hover,
.language-option.active {
  background: var(--surface2);
  border-color: var(--border);
}

.theme-toggle-label {
  line-height: 1;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: #111827;
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 9999;
  border-radius: var(--radius);
  font-weight: 600;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.4);
}

@media (max-width: 640px) {
  .language-menu {
    min-width: min(320px, calc(100vw - 2rem));
    grid-template-columns: 1fr;
  }
}