/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 44px;
  padding: 0 var(--space-5);
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
}
.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--color-primary);
  color: #06231a;
}
.btn-primary:hover {
  background: var(--color-primary-strong);
  box-shadow: var(--shadow-glow-primary);
  transform: translateY(-1px);
}

.btn-danger {
  background: var(--color-danger);
  color: #2a0a0f;
}
.btn-danger:hover {
  box-shadow: 0 0 0 1px rgba(255, 93, 115, 0.4), 0 0 24px rgba(255, 93, 115, 0.25);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-surface-hover);
  transform: translateY(-1px);
}

.btn-block {
  width: 100%;
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-2px);
}

.card--glass {
  background: rgba(31, 34, 38, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* ---------- Forms ---------- */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

.input {
  height: 44px;
  padding: 0 var(--space-4);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: var(--font-size-base);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(38, 217, 163, 0.15);
}
.input::placeholder {
  color: var(--color-text-muted);
}

.error-text {
  font-size: var(--font-size-sm);
  color: var(--color-danger);
}

/* ---------- Sidebar (dashboard) ---------- */
.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--color-bg-elevated);
  border-right: 1px solid var(--color-border);
  padding: var(--space-5) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.sidebar__brand {
  font-size: var(--font-size-md);
  font-weight: 600;
  padding: 0 var(--space-3);
  margin-bottom: var(--space-5);
}
.sidebar__brand span {
  color: var(--color-primary);
}

.sidebar__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-size: var(--font-size-base);
  transition: background-color var(--transition), color var(--transition);
}
.sidebar__item:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}
.sidebar__item--active {
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: inset 2px 0 0 var(--color-primary);
}
.sidebar__item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ---------- Toasts ---------- */
.toast-container {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 360px;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  font-size: var(--font-size-sm);
  animation: toast-in 250ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
.toast--success { border-left: 3px solid var(--color-primary); }
.toast--error { border-left: 3px solid var(--color-danger); }
.toast--info { border-left: 3px solid var(--color-info); }

@keyframes toast-in {
  from { opacity: 0; transform: translateX(16px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  animation: fade-in 200ms ease both;
}
.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--space-6);
  max-width: 480px;
  width: 90%;
  box-shadow: var(--shadow-soft);
  animation: modal-in 250ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes modal-in {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

/* ---------- Skeleton loaders ---------- */
.skeleton {
  background: linear-gradient(90deg, var(--color-surface) 25%, var(--color-surface-hover) 37%, var(--color-surface) 63%);
  background-size: 400% 100%;
  border-radius: var(--radius-sm);
  animation: skeleton-shimmer 1.4s ease infinite;
}
@keyframes skeleton-shimmer {
  from { background-position: 100% 50%; }
  to { background-position: 0 50%; }
}

/* ---------- Misc ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-sm);
  font-weight: 500;
  background: var(--color-surface-hover);
  color: var(--color-text-muted);
}
.badge--primary { background: rgba(38, 217, 163, 0.15); color: var(--color-primary); }

.text-muted { color: var(--color-text-muted); }

.lang-switcher {
  position: relative;
}

.lang-switcher__toggle {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  height: 40px;
  padding: 0 var(--space-2);
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition);
}

.lang-switcher__toggle:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.lang-switcher__toggle svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition);
}

.lang-switcher.is-open .lang-switcher__toggle svg {
  transform: rotate(180deg);
}

.lang-switcher__flag {
  font-size: 1.15rem;
  line-height: 1;
}

.lang-switcher__menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 170px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 40;
}

.lang-switcher.is-open .lang-switcher__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-switcher__option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: background-color var(--transition);
}

.lang-switcher__option:hover {
  background: var(--color-surface-hover);
}

.lang-switcher__option--active {
  color: var(--color-primary);
  font-weight: 600;
}

.lang-switcher__option .lang-switcher__flag {
  font-size: 1.05rem;
}