/* =========================================================
   OTAKU SENPAI VERSE — UI Kit (Sprint 003)
   ---------------------------------------------------------
   Componentes visuais do Design System. Consome as variáveis
   de tokens.css e design-system.css — nenhuma cor "solta" aqui.
   Carregado em includes/header.php, após design-system.css.
   ========================================================= */

/* ===========================================================
   BOTÕES — Primary e Ghost já existiam (theme.css, Sprint 001/002).
   Esta Sprint adiciona: Secondary, Outline, Glass, Danger, Success.
   =========================================================== */

.btn-secondary {
  background: var(--color-secondary);
  color: var(--color-ink);
  font-weight: 700;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 26px -12px rgba(183, 159, 224, 0.55);
  transition: transform var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px -10px rgba(183, 159, 224, 0.7);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-full);
  transition: background var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard);
}

.btn-outline:hover {
  background: rgba(255, 93, 143, 0.1);
  transform: translateY(-2px);
}

.btn-glass {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--color-text);
  border-radius: var(--radius-full);
  transition: border-color var(--duration-fast) ease, transform var(--duration-fast) ease;
}

.btn-glass:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-danger {
  background: var(--color-danger);
  color: #fff;
  font-weight: 700;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 26px -12px rgba(255, 84, 112, 0.55);
  transition: transform var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard);
}

.btn-danger:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px -10px rgba(255, 84, 112, 0.7);
}

.btn-success {
  background: var(--color-success);
  color: var(--color-ink);
  font-weight: 700;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 26px -12px rgba(56, 217, 169, 0.5);
  transition: transform var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard);
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px -10px rgba(56, 217, 169, 0.65);
}

.btn-primary:disabled,
.btn-secondary:disabled,
.btn-outline:disabled,
.btn-glass:disabled,
.btn-danger:disabled,
.btn-success:disabled {
  opacity: 0.5;
  pointer-events: none;
  transform: none !important;
}

/* ===========================================================
   CARDS — Default / Glass / Hover
   .card-hover e .glass já existem (Sprint 001). Adicionamos
   .card-default como base sólida (sem blur) para contextos onde
   glassmorphism não é desejado (ex: dentro do painel admin).
   =========================================================== */

.card-default {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

/* ===========================================================
   BADGE / CHIP / TAG
   - Badge: rótulo de status curto (ex: categoria, "novo")
   - Chip: elemento selecionável/removível (ex: filtro ativo)
   - Tag: rótulo neutro de metadado (ex: tag de rodapé de artigo)
   =========================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 2px var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border-strong);
  background: rgba(10, 7, 16, 0.6);
  color: var(--color-text);
}

.badge--primary { color: var(--color-primary); border-color: rgba(255, 93, 143, 0.4); }
.badge--accent  { color: var(--color-accent);  border-color: rgba(242, 184, 75, 0.4); }
.badge--success { color: var(--color-success); border-color: rgba(56, 217, 169, 0.4); background: var(--color-success-soft); }
.badge--warning { color: var(--color-warning); border-color: rgba(242, 184, 75, 0.4); background: var(--color-warning-soft); }
.badge--danger  { color: var(--color-danger);  border-color: rgba(255, 84, 112, 0.4); background: var(--color-danger-soft); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: transparent;
  cursor: pointer;
  transition: border-color var(--duration-fast) ease, color var(--duration-fast) ease, background var(--duration-fast) ease;
}

.chip:hover {
  border-color: var(--color-primary);
  color: var(--color-text);
}

.chip[aria-pressed="true"],
.chip.is-active {
  border-color: var(--color-primary);
  background: rgba(255, 93, 143, 0.12);
  color: var(--color-text);
}

.chip__remove {
  opacity: 0.6;
  transition: opacity var(--duration-fast) ease;
}

.chip:hover .chip__remove {
  opacity: 1;
}

.ds-tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--duration-fast) ease;
}

.ds-tag:hover {
  color: var(--color-primary);
}

/* ===========================================================
   INPUT / SEARCH
   =========================================================== */

.input-field {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: border-color var(--duration-fast) ease, background var(--duration-fast) ease;
}

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

.input-field:focus {
  outline: none;
  border-color: var(--color-primary);
  background: rgba(255, 255, 255, 0.07);
}

.input-field.has-error {
  border-color: var(--color-danger);
}

.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.input-group__icon {
  position: absolute;
  left: var(--space-4);
  color: var(--color-text-muted);
  pointer-events: none;
}

.input-group .input-field {
  padding-left: var(--space-8);
}

/* ===========================================================
   DROPDOWN
   =========================================================== */

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown__panel {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 200px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 24px 48px -20px rgba(0, 0, 0, 0.6);
  padding: var(--space-2);
  opacity: 0;
  transform: translateY(-6px) scale(0.98);
  pointer-events: none;
  transition: opacity var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard);
  z-index: 50;
}

.dropdown__panel.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.dropdown__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: background var(--duration-fast) ease, color var(--duration-fast) ease;
}

.dropdown__item:hover {
  background: rgba(255, 93, 143, 0.08);
  color: var(--color-text);
}

/* ===========================================================
   TOOLTIP — puramente CSS, via atributo data-tooltip
   Uso: <button class="has-tooltip" data-tooltip="Texto aqui">
   =========================================================== */

.has-tooltip {
  position: relative;
}

.has-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + var(--space-2));
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: var(--text-xs);
  font-family: var(--font-sans);
  white-space: nowrap;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-fast) ease, transform var(--duration-fast) ease;
  z-index: 60;
}

.has-tooltip:hover::after,
.has-tooltip:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===========================================================
   TOAST
   =========================================================== */

#toast-region {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 9998;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: min(360px, calc(100vw - var(--space-6) * 2));
}

.toast {
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  box-shadow: 0 20px 40px -18px rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  animation: toastIn 0.3s var(--ease-standard);
  font-size: var(--text-sm);
}

.toast.is-leaving {
  animation: toastOut 0.25s var(--ease-standard) forwards;
}

.toast--success { border-left: 3px solid var(--color-success); }
.toast--warning { border-left: 3px solid var(--color-warning); }
.toast--danger  { border-left: 3px solid var(--color-danger); }
.toast--info    { border-left: 3px solid var(--color-secondary); }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(24px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(24px); }
}

/* ===========================================================
   MODAL
   =========================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 7, 16, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 9990;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
}

.modal-overlay.is-open {
  display: flex;
}

.modal-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  max-width: 480px;
  width: 100%;
  padding: var(--space-7);
  position: relative;
  animation: modalIn 0.3s var(--ease-standard);
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: background var(--duration-fast) ease, color var(--duration-fast) ease;
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text);
}

/* ===========================================================
   SKELETON — placeholders de carregamento (shimmer)
   =========================================================== */

.skeleton {
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
}

.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
  animation: skeletonShimmer 1.6s infinite;
}

@keyframes skeletonShimmer {
  100% { transform: translateX(100%); }
}

.skeleton--text { height: 0.9em; margin-bottom: var(--space-2); }
.skeleton--title { height: 1.6em; width: 70%; margin-bottom: var(--space-4); }
.skeleton--image { aspect-ratio: 4 / 3; width: 100%; }
.skeleton--avatar { width: 40px; height: 40px; border-radius: 50%; }

@media (prefers-reduced-motion: reduce) {
  .skeleton::after,
  .toast,
  .modal-panel {
    animation: none !important;
  }
}