/* ===========================
   Espaçamento (margin/padding)
   =========================== */
.m-0 { margin: 0; }
.m-1 { margin: 0.25rem; }
.m-2 { margin: 0.5rem; }
.m-4 { margin: 1rem; }
.m-8 { margin: 2rem; }

.p-0 { padding: 0; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-4 { padding: 1rem; }
.p-8 { padding: 2rem; }

/* ===========================
   Flexbox
   =========================== */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }

/* ===========================
   Grid
   =========================== */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-8 { gap: 2rem; }

/* ===========================
   Tipografia
   =========================== */
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-bold { font-weight: 700; }
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* ===========================
   Cores
   =========================== */
.bg-white { background-color: #ffffff; }
.bg-gray-100 { background-color: #f7fafc; }
.bg-gray-200 { background-color: #edf2f7; }
.bg-gray-800 { background-color: #2d3748; }
.bg-blue-500 { background-color: #3b82f6; }
.bg-red-500 { background-color: #ef4444; }

.text-white { color: #ffffff; }
.text-gray-800 { color: #2d3748; }
.text-blue-600 { color: #2563eb; }
.text-red-600 { color: #dc2626; }

/* ===========================
   Bordas
   =========================== */
.border { border: 1px solid #e5e7eb; }
.border-2 { border: 2px solid #e5e7eb; }
.border-gray-300 { border-color: #d1d5db; }
.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-full { border-radius: 9999px; }

/* ===========================
   Largura e altura
   =========================== */
.w-full { width: 100%; }
.w-1/2 { width: 50%; }
.w-1/3 { width: 33.333%; }
.h-full { height: 100%; }
.h-screen { height: 100vh; }

/* ===========================
   Estados de interação
   =========================== */
.hover\:bg-blue-700:hover { background-color: #1d4ed8; }
.hover\:bg-gray-200:hover { background-color: #edf2f7; }
.hover\:text-red-600:hover { color: #dc2626; }
.active\:scale-95:active { transform: scale(0.95); }

/* ===========================
   Responsividade (breakpoints)
   =========================== */
@media (min-width: 640px) {
  .sm\:text-lg { font-size: 1.125rem; }
  .sm\:flex-row { flex-direction: row; }
}

@media (min-width: 768px) {
  .md\:text-xl { font-size: 1.25rem; }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .lg\:text-2xl { font-size: 1.5rem; }
  .lg\:flex-row { flex-direction: row; }
}

/* Base: remove borda */
.border-0 {
  border: 0 !important;
}

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