/* ==========================================================================
   DigiEstoque — Componentes base
   Depende de design-system.css (tokens). Carregar DEPOIS dele.
   Componentes reutilizáveis: botões, cards, badges, formulários, alertas,
   tabelas, avatar, loaders, abas, toggle de tema. Tudo via tokens + dark mode.
   ========================================================================== */

/* --------------------------------------------------------------------------
   2.1 — Botões
   -------------------------------------------------------------------------- */
/* Base */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  line-height: 1;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  outline: none;
  position: relative;
}
/* focus ring acessível (box-shadow é o equivalente real do "ring") */
.btn:focus-visible { box-shadow: var(--focus-ring); }
.btn:active:not(:disabled) { transform: translateY(0) scale(.97); }
.btn:disabled { opacity: 0.5; pointer-events: none; }

/* Tamanhos */
.btn-sm  { height: 32px; padding: 0 var(--space-3); font-size: var(--text-xs); }
.btn-md  { height: 36px; padding: 0 var(--space-4); }
.btn-lg  { height: 44px; padding: 0 var(--space-6); font-size: var(--text-md); }
.btn-icon-sm { width: 32px; height: 32px; padding: 0; }
.btn-icon-md { width: 36px; height: 36px; padding: 0; }

/* Variantes */
.btn-primary   { background: var(--brand-500); color: #fff; }
.btn-primary:hover { background: var(--brand-hover, var(--brand-600)); transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-secondary { background: var(--control-bg); color: var(--text-primary); border: 1px solid var(--control-border); }
.btn-secondary:hover { background: var(--control-bg-hover); border-color: var(--border-strong); }

.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { background: var(--control-bg-hover); color: var(--text-primary); }

.btn-danger { background: var(--color-error); color: #fff; }
.btn-danger:hover { background: #DC2626; }

.btn-success { background: var(--color-success); color: #fff; }

.btn-whatsapp { background: var(--whatsapp); color: #fff; }
.btn-whatsapp:hover { background: var(--whatsapp-dark); }

/* Botão de IA (gradiente roxo→ciano) */
.btn-ai { background: linear-gradient(135deg, var(--ai-purple), var(--ai-cyan)); color: #fff; }
.btn-ai:hover { filter: brightness(1.05); transform: translateY(-1px); box-shadow: var(--shadow-md); }

/* Bloco (largura total) */
.btn-block { width: 100%; }

/* Ícones Lucide dentro de botões herdam o tamanho do texto */
.btn svg { width: 16px; height: 16px; }
.btn-lg svg { width: 18px; height: 18px; }

/* Loading state */
.btn.loading { pointer-events: none; }
.btn.loading::after {
  content: '';
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-left: var(--space-2);
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --------------------------------------------------------------------------
   2.2 — Cards
   -------------------------------------------------------------------------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}
.card-hover:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.card-flush { padding: 0; } /* para cards com tabela/lista coladas na borda */

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.card-title { font-size: var(--text-lg); font-weight: var(--font-semibold); letter-spacing: var(--tracking-tight); }
.card-subtitle { font-size: var(--text-sm); color: var(--text-secondary); margin-top: var(--space-1); }
.card-body { font-size: var(--text-base); color: var(--text-secondary); }
.card-footer {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-default);
  display: flex; align-items: center; gap: var(--space-3);
}

/* Card de métrica (KPI) */
.stat-card { display: flex; flex-direction: column; gap: var(--space-2); }
.stat-card .stat-label { font-size: var(--text-sm); color: var(--text-secondary); display: flex; align-items: center; gap: var(--space-2); }
.stat-card .stat-value { font-size: var(--text-3xl); font-weight: var(--font-bold); letter-spacing: var(--tracking-tight); font-variant-numeric: tabular-nums; }
.stat-card .stat-trend { font-size: var(--text-xs); font-weight: var(--font-medium); display: inline-flex; align-items: center; gap: var(--space-1); }
.stat-card .stat-trend.up { color: var(--color-success-text); }
.stat-card .stat-trend.down { color: var(--color-error-text); }

/* --------------------------------------------------------------------------
   2.3 — Badges / Pills de status
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex; align-items: center; gap: var(--space-1);
  height: 22px; padding: 0 var(--space-2);
  font-size: var(--text-xs); font-weight: var(--font-medium);
  border-radius: var(--radius-full); border: 1px solid transparent;
  white-space: nowrap;
}
.badge svg { width: 12px; height: 12px; }
.badge-neutral { background: var(--bg-subtle); color: var(--text-secondary); border-color: var(--border-default); }
.badge-success { background: var(--color-success-bg); color: var(--color-success-text); border-color: var(--color-success-border); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning-text); border-color: var(--color-warning-border); }
.badge-error   { background: var(--color-error-bg);   color: var(--color-error-text);   border-color: var(--color-error-border); }
.badge-info    { background: var(--color-info-bg);    color: var(--color-info-text);    border-color: var(--color-info-border); }
.badge-whatsapp{ background: var(--whatsapp-bg); color: var(--whatsapp-dark); border-color: var(--whatsapp); }
.badge-ai      { background: var(--ai-bg); color: var(--ai-purple); border-color: var(--ai-purple); }
/* ponto de status (bolinha) */
.badge-dot::before { content:''; width:6px; height:6px; border-radius:50%; background: currentColor; }

/* --------------------------------------------------------------------------
   2.4 — Formulários
   -------------------------------------------------------------------------- */
.field { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-4); }
.label { font-size: var(--text-sm); font-weight: var(--font-medium); color: var(--text-primary); }
.hint  { font-size: var(--text-xs); color: var(--text-tertiary); }

.input, .textarea, .select {
  width: 100%;
  height: 40px;
  padding: 0 var(--space-3);
  font-size: var(--text-base);
  color: var(--text-primary);
  background: var(--control-bg);
  border: 1px solid var(--control-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.textarea { height: auto; min-height: 96px; padding: var(--space-3); resize: vertical; line-height: var(--leading-normal); }
.input::placeholder, .textarea::placeholder { color: var(--text-tertiary); }
.input:focus, .textarea:focus, .select:focus {
  outline: none;
  border-color: var(--control-border-focus);
  box-shadow: var(--focus-ring);
}
.input:disabled, .textarea:disabled, .select:disabled { background: var(--control-bg-disabled); color: var(--text-disabled); opacity: 1; cursor: not-allowed; }
.input-error { border-color: var(--color-error); }
.input-error:focus { box-shadow: 0 0 0 3px var(--color-error-bg); }

/* input com ícone à esquerda */
.input-group { position: relative; }
.input-group svg { position: absolute; left: var(--space-3); top: 50%; transform: translateY(-50%); width: 16px; height: 16px; color: var(--text-tertiary); pointer-events: none; }
.input-group .input { padding-left: 36px; }

/* switch (toggle) — usado p/ dark mode e flags */
.switch { position: relative; display: inline-block; width: 40px; height: 22px; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .slider { position: absolute; inset: 0; background: var(--border-strong); border-radius: var(--radius-full); transition: background var(--transition-fast); }
.switch .slider::before { content:''; position: absolute; left: 3px; top: 3px; width: 16px; height: 16px; background: #fff; border-radius: 50%; transition: transform var(--transition-fast); box-shadow: var(--shadow-sm); }
.switch input:checked + .slider { background: var(--brand-500); }
.switch input:checked + .slider::before { transform: translateX(18px); }

/* --------------------------------------------------------------------------
   2.5 — Alertas
   -------------------------------------------------------------------------- */
.alert {
  display: flex; align-items: flex-start; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid transparent; border-radius: var(--radius-md);
  font-size: var(--text-sm);
}
.alert svg { width: 18px; height: 18px; flex: none; margin-top: 1px; }
.alert-success { background: var(--color-success-bg); color: var(--color-success-text); border-color: var(--color-success-border); }
.alert-warning { background: var(--color-warning-bg); color: var(--color-warning-text); border-color: var(--color-warning-border); }
.alert-error   { background: var(--color-error-bg);   color: var(--color-error-text);   border-color: var(--color-error-border); }
.alert-info    { background: var(--color-info-bg);    color: var(--color-info-text);    border-color: var(--color-info-border); }

/* --------------------------------------------------------------------------
   2.6 — Tabelas
   -------------------------------------------------------------------------- */
.table { width: 100%; font-size: var(--text-sm); }
.table thead th {
  text-align: left; font-weight: var(--font-semibold); color: var(--text-secondary);
  font-size: var(--text-xs); text-transform: uppercase; letter-spacing: var(--tracking-wider);
  padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--border-default);
  white-space: nowrap;
}
.table tbody td { padding: var(--space-4); border-bottom: 1px solid var(--border-default); color: var(--text-primary); vertical-align: middle; }
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr { transition: background var(--transition-fast); }
.table tbody tr:hover { background: var(--bg-subtle); }
.table .cell-muted { color: var(--text-secondary); }

/* --------------------------------------------------------------------------
   2.7 — Avatar
   -------------------------------------------------------------------------- */
.avatar {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: var(--radius-full);
  background: var(--brand-100); color: var(--brand-700);
  font-size: var(--text-sm); font-weight: var(--font-semibold); overflow: hidden; flex: none;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-sm { width: 28px; height: 28px; font-size: var(--text-xs); }
.avatar-lg { width: 48px; height: 48px; font-size: var(--text-md); }

/* --------------------------------------------------------------------------
   2.8 — Loaders (spinner + skeleton)
   -------------------------------------------------------------------------- */
.spinner { width: 20px; height: 20px; border: 2px solid var(--border-default); border-top-color: var(--brand-500); border-radius: 50%; animation: spin 0.6s linear infinite; }
.skeleton { background: linear-gradient(90deg, var(--bg-subtle) 25%, var(--border-default) 37%, var(--bg-subtle) 63%); background-size: 400% 100%; animation: shimmer 1.4s ease infinite; border-radius: var(--radius-md); }
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }

/* --------------------------------------------------------------------------
   2.9 — Abas (tabs)
   -------------------------------------------------------------------------- */
.tabs { display: flex; gap: var(--space-1); border-bottom: 1px solid var(--border-default); }
.tab {
  height: 40px; padding: 0 var(--space-4);
  font-size: var(--text-sm); font-weight: var(--font-medium); color: var(--text-secondary);
  border-bottom: 2px solid transparent; transition: color var(--transition-fast), border-color var(--transition-fast);
}
.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--brand-600); border-bottom-color: var(--brand-500); }

/* --------------------------------------------------------------------------
   2.10 — Modal
   -------------------------------------------------------------------------- */
.modal-overlay { position: fixed; inset: 0; background: var(--bg-overlay); backdrop-filter: blur(2px); display: none; align-items: center; justify-content: center; padding: var(--space-4); z-index: 50; }
.modal-overlay.open { display: flex; }
.modal {
  background: var(--bg-card); border: 1px solid var(--border-default);
  border-radius: var(--radius-xl); box-shadow: var(--shadow-xl);
  width: 100%; max-width: 520px; max-height: 90vh; overflow: auto;
  animation: modalIn var(--transition-normal);
}
@keyframes modalIn { from { opacity: 0; transform: translateY(8px) scale(.98); } to { opacity: 1; transform: none; } }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--border-default); }
.modal-head h3 { font-size: var(--text-lg); font-weight: var(--font-semibold); }
.modal-content { padding: var(--space-6); }
.modal-foot { display: flex; justify-content: flex-end; gap: var(--space-3); padding: var(--space-4) var(--space-6); border-top: 1px solid var(--border-default); }

/* --------------------------------------------------------------------------
   2.11 — Utilitários leves
   -------------------------------------------------------------------------- */
.divider { height: 1px; background: var(--border-default); border: none; margin: var(--space-4) 0; }
.muted { color: var(--text-secondary); }
.text-xs { font-size: var(--text-xs); } .text-sm { font-size: var(--text-sm); }
.flex { display: flex; } .items-center { align-items: center; } .justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); } .gap-3 { gap: var(--space-3); } .gap-4 { gap: var(--space-4); }
.grid { display: grid; } .hidden { display: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}