/* ============================================================
   Central de Figurinhas — style.css
   Base global, variáveis, reset, componentes compartilhados
   ============================================================ */

:root {
  /* Cores principais */
  --brand-primary:   #1a56db;
  --brand-secondary: #0e3a9e;
  --brand-accent:    #f59e0b;

  /* Neutros */
  --gray-50:  #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* Status */
  --color-warning:  #f59e0b;
  --color-success:  #10b981;
  --color-danger:   #ef4444;
  --color-muted:    #9ca3af;

  /* Espaçamentos */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;

  /* Bordas */
  --radius-sm:  0.25rem;
  --radius:     0.5rem;
  --radius-lg:  0.75rem;
  --radius-xl:  1rem;
  --radius-2xl: 1.5rem;

  /* Sombras */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow:    0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.08), 0 4px 6px rgba(0,0,0,0.05);

  /* Tipografia */
  --font-sans: 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'DM Mono', monospace;

  /* Transições */
  --transition: 150ms ease;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--gray-50);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ============================================================
   Botões
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.5625rem var(--space-5);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn:focus-visible { outline: 2px solid var(--brand-primary); outline-offset: 2px; }

.btn-primary {
  background: var(--brand-primary);
  color: #fff;
  border-color: var(--brand-primary);
}
.btn-primary:hover { background: var(--brand-secondary); border-color: var(--brand-secondary); color: #fff; }

.btn-secondary {
  background: #fff;
  color: var(--gray-700);
  border-color: var(--gray-300);
}
.btn-secondary:hover { background: var(--gray-50); color: var(--gray-900); }

.btn-success {
  background: var(--color-success);
  color: #fff;
  border-color: var(--color-success);
}
.btn-success:hover { background: #059669; color: #fff; }

.btn-danger {
  background: var(--color-danger);
  color: #fff;
  border-color: var(--color-danger);
}
.btn-danger:hover { background: #dc2626; color: #fff; }

.btn-ghost {
  background: transparent;
  color: var(--gray-600);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--gray-100); color: var(--gray-800); }

.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.8125rem; }
.btn-lg { padding: 0.75rem 1.75rem; font-size: 1rem; }

/* ============================================================
   Formulários
   ============================================================ */
.form-group { margin-bottom: var(--space-5); }
.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: var(--space-2);
}
.form-label .required { color: var(--color-danger); margin-left: 2px; }

.form-control {
  display: block;
  width: 100%;
  padding: 0.5625rem var(--space-4);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--gray-900);
  background: #fff;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,0.12);
}
.form-control::placeholder { color: var(--gray-400); }

select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 100px; }

.form-hint {
  font-size: 0.8125rem;
  color: var(--gray-500);
  margin-top: var(--space-1);
}
.form-error {
  font-size: 0.8125rem;
  color: var(--color-danger);
  margin-top: var(--space-1);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

.form-section-title {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--gray-200);
}

/* Checkbox customizado */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}
.form-check input[type="checkbox"] {
  width: 1.125rem;
  height: 1.125rem;
  margin-top: 2px;
  accent-color: var(--brand-primary);
  cursor: pointer;
  flex-shrink: 0;
}
.form-check-label {
  font-size: 0.9rem;
  color: var(--gray-700);
  line-height: 1.5;
}

/* ============================================================
   Cards
   ============================================================ */
.card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--gray-200);
}
.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-900);
}
.card-body { padding: var(--space-6); }
.card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--gray-200);
  background: var(--gray-50);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ============================================================
   Tabelas
   ============================================================ */
.table-wrapper { overflow-x: auto; }
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.table th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray-500);
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
  white-space: nowrap;
}
.table td {
  padding: var(--space-3) var(--space-4);
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-100);
  vertical-align: middle;
}
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: var(--gray-50); }
.table-actions { display: flex; gap: var(--space-2); align-items: center; }

/* ============================================================
   Badges / Status
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 99px;
  white-space: nowrap;
}
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-success { background: #d1fae5; color: #065f46; }
.badge-danger  { background: #fee2e2; color: #991b1b; }
.badge-muted   { background: var(--gray-100); color: var(--gray-500); }
.badge-primary { background: #dbeafe; color: #1e40af; }

/* ============================================================
   Alertas
   ============================================================ */
.alert {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius);
  margin-bottom: var(--space-5);
  font-size: 0.9rem;
  font-weight: 500;
}
.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-error   { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.alert-warning { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }
.alert-info    { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

/* ============================================================
   Foto do aluno
   ============================================================ */
.foto-thumb {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  object-fit: cover;
  border: 2px solid var(--gray-200);
  background: var(--gray-100);
}
.foto-preview {
  width: 100%;
  max-width: 280px;
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 2px solid var(--gray-200);
  background: var(--gray-100);
}
.foto-grande {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: var(--radius-xl);
  border: 3px solid var(--gray-200);
}

/* ============================================================
   Utilitários
   ============================================================ */
.text-muted   { color: var(--gray-500); }
.text-sm      { font-size: 0.875rem; }
.text-xs      { font-size: 0.75rem; }
.text-right   { text-align: right; }
.text-center  { text-align: center; }
.fw-600       { font-weight: 600; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.gap-2 { gap: var(--space-2); }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; }
.justify-between { justify-content: space-between; }
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-8);
  color: var(--gray-500);
}
.empty-state .empty-icon { font-size: 3rem; margin-bottom: var(--space-4); }
.empty-state p { font-size: 1.0625rem; }

/* Divider */
.divider {
  height: 1px;
  background: var(--gray-200);
  margin: var(--space-6) 0;
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 1rem; height: 1rem;
  border: 2px solid var(--gray-300);
  border-top-color: var(--brand-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }