/* ==========================================================================
   components.css — buttons, cards, badges, tabs, alerts, modals, toasts
   ========================================================================== */

/* ---------------------------------- Buttons ------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: var(--fs-base);
  border: 2px solid transparent;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.btn--primary {
  background: var(--primary-color);
  color: #fff;
  box-shadow: 0 8px 20px rgba(145, 94, 227, 0.32);
}

.btn--primary:hover:not(:disabled) {
  background: var(--primary-color-dark);
  transform: translateY(-1px);
}

.btn--secondary {
  background: var(--color-white);
  color: var(--primary-color-dark);
  border-color: var(--color-border-strong);
}

.btn--secondary:hover:not(:disabled) {
  border-color: var(--primary-color);
  background: var(--primary-color-lighter);
}

.btn--ghost {
  background: transparent;
  color: var(--color-ink-soft);
}

.btn--ghost:hover:not(:disabled) {
  background: var(--color-bg-alt);
}

.btn--text {
  padding: var(--space-1) var(--space-2);
  color: var(--primary-color-dark);
  font-weight: 700;
}

.btn--text:hover {
  text-decoration: underline;
}

.btn--danger-text {
  color: var(--color-error);
  font-weight: 600;
  padding: var(--space-1) var(--space-2);
}

.btn--danger-text:hover {
  text-decoration: underline;
}

.btn--sm {
  padding: 0.55rem 1.1rem;
  font-size: var(--fs-sm);
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: var(--fs-md);
}

.btn--block {
  width: 100%;
}

.btn--icon {
  padding: var(--space-2);
  border-radius: var(--radius-pill);
  width: 40px;
  height: 40px;
}

/* ---------------------------------- Cards --------------------------------- */

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

.card--pad {
  padding: var(--space-6);
}

/* ---------------------------------- Badges -------------------------------- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--fs-xs);
  font-weight: 700;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge--primary {
  background: var(--primary-color-light);
  color: var(--primary-color-darker);
}

.badge--success {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.badge--info {
  background: var(--color-info-bg);
  color: var(--color-info);
}

.badge--neutral {
  background: var(--color-bg-alt);
  color: var(--color-muted);
}

/* ---------------------------------- Alerts -------------------------------- */

.alert {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  line-height: 1.5;
}

.alert svg {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin-top: 1px;
}

.alert strong {
  display: block;
  margin-bottom: 2px;
  font-size: var(--fs-base);
}

.alert--info {
  background: var(--color-info-bg);
  color: #2a5490;
}

.alert--warm {
  background: var(--color-warning-bg);
  color: #8a5c14;
}

.alert--success {
  background: var(--color-success-bg);
  color: #1f7350;
}

.alert--soft {
  background: var(--primary-color-lighter);
  color: var(--color-ink-soft);
}

/* ---------------------------------- Tabs / selector ----------------------- */

.selector-tabs {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  scrollbar-width: thin;
}

.selector-tab {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  padding: var(--space-3) var(--space-5) var(--space-3) var(--space-3);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  cursor: pointer;
  text-align: left;
  min-width: 210px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.selector-tab:hover {
  border-color: var(--color-border-strong);
}

.selector-tab:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.selector-tab[aria-selected="true"] {
  border-color: var(--primary-color);
  background: var(--primary-color-lighter);
  box-shadow: 0 6px 18px rgba(145, 94, 227, 0.18);
}

.selector-tab__thumb {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
}

.selector-tab__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.selector-tab__meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.selector-tab__name {
  font-weight: 700;
  color: var(--color-ink);
  font-size: var(--fs-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.selector-tab__sub {
  font-size: var(--fs-xs);
  color: var(--color-muted);
}

.selector-tab__check {
  display: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-color);
  color: #fff;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-left: auto;
}

.selector-tab[aria-selected="true"] .selector-tab__check {
  display: inline-flex;
}

.selector-tab__check svg {
  width: 12px;
  height: 12px;
}

/* ---------------------------------- Progress stepper ----------------------- */

.stepper {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  flex-wrap: wrap;
}

.stepper li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-muted);
}

.stepper li:not(:last-child)::after {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--color-border-strong);
  margin-left: var(--space-2);
}

.stepper__dot {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: 2px solid var(--color-border-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xs);
  color: var(--color-muted);
}

.stepper li.is-current .stepper__dot {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: #fff;
}

.stepper li.is-current {
  color: var(--color-ink);
}

.stepper li.is-done .stepper__dot {
  background: var(--color-success);
  border-color: var(--color-success);
  color: #fff;
}

/* ---------------------------------- Spinner / loading ----------------------- */

.spinner {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 3px solid rgba(145, 94, 227, 0.22);
  border-top-color: var(--primary-color);
  animation: spin 0.8s linear infinite;
}

.spinner--lg {
  width: 46px;
  height: 46px;
  border-width: 4px;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loading-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-5);
  padding: var(--space-10) var(--space-5);
  text-align: center;
}

.loading-screen p {
  font-weight: 600;
  color: var(--color-ink-soft);
  font-size: var(--fs-md);
}

/* ---------------------------------- Toast ----------------------------------- */

#toast-region {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  align-items: center;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-ink);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  animation: toast-in 220ms var(--ease);
}

.toast svg {
  width: 18px;
  height: 18px;
  color: #8ef0b4;
  flex-shrink: 0;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------------------------------- Modal / Lightbox ------------------------ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(24, 16, 38, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: var(--space-5);
}

.modal-overlay[hidden] {
  display: none;
}

.lightbox {
  position: relative;
  width: 100%;
  max-width: 760px;
  max-height: 88vh;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}

.lightbox__stage {
  position: relative;
  flex: 1;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
}

.lightbox__stage img {
  max-height: 62vh;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

.lightbox__close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  z-index: 2;
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  z-index: 2;
  transition: background var(--transition-fast);
}

.lightbox__nav:hover {
  background: #fff;
}

.lightbox__nav--prev {
  left: var(--space-3);
}

.lightbox__nav--next {
  right: var(--space-3);
}

.lightbox__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border);
  gap: var(--space-3);
  flex-wrap: wrap;
}

.lightbox__title {
  font-weight: 700;
  color: var(--color-ink);
}

.lightbox__count {
  font-size: var(--fs-sm);
  color: var(--color-muted);
}

/* ---------------------------------- Tooltips / helper text ------------------ */

.hint {
  font-size: var(--fs-xs);
  color: var(--color-muted);
}

.divider {
  height: 1px;
  background: var(--color-border);
  border: none;
  margin-block: var(--space-6);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--color-border-strong);
  background: var(--color-white);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.icon-btn:hover {
  background: var(--color-bg-alt);
}

.icon-btn svg {
  width: 18px;
  height: 18px;
}