/* ===================================================
   MAIN.CSS — Design system global
   Controle de Frota · Grupo Combate
=================================================== */

/* --- Variáveis de Design (tokens) --- */
:root {
  /* Cores principais: Azul e Branco */
  --color-primary-50:  #eef3fa;
  --color-primary-100: #d9e5f4;
  --color-primary-200: #b3c9e6;
  --color-primary-300: #7fa3d1;
  --color-primary-400: #4a7bb8;
  --color-primary-500: #1f5199;
  --color-primary-600: #012f6b;
  --color-primary-700: #01275a;
  --color-primary-800: #011f49;
  --color-primary-900: #011838;
  --color-primary-950: #010f26;

  /* Cores da marca Grupo Combate */
  --brand-navy:  #012f6b;
  --brand-red:   #be0e1e;
  --brand-gold:  #fac777;
  --font-brand:  'Playfair Display', Georgia, 'Times New Roman', serif;

  /* Tons de cinza (para texto, bordas, fundos) */
  --color-gray-50:  #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;

  /* Status / Feedback */
  --color-success: #16a34a;
  --color-success-bg: #dcfce7;
  --color-warning: #ca8a04;
  --color-warning-bg: #fef9c3;
  --color-danger:  #be0e1e;
  --color-danger-bg: #fde8ea;
  --color-info:    #0284c7;
  --color-info-bg: #e0f2fe;

  /* Tipografia */
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-xs:   0.75rem;
  --font-size-sm:   0.875rem;
  --font-size-base: 1rem;
  --font-size-lg:   1.125rem;
  --font-size-xl:   1.25rem;
  --font-size-2xl:  1.5rem;
  --font-size-3xl:  1.875rem;
  --font-size-4xl:  2.25rem;

  /* Espaçamento */
  --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;
  --space-16: 4rem;

  /* Bordas */
  --radius-sm:  0.25rem;
  --radius-md:  0.5rem;
  --radius-lg:  0.75rem;
  --radius-xl:  1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Sombras */
  --shadow-sm:  0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:  0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg:  0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl:  0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --shadow-blue: 0 4px 20px rgba(1, 47, 107, 0.3);

  /* Transições */
  --transition-fast:   150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow:   400ms ease;
}

/* --- Reset e Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-gray-800);
  background-color: var(--color-gray-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-primary-800); }

img, svg {
  display: block;
  max-width: 100%;
}

/* --- Botões --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 600;
  line-height: 1;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--transition-fast);
}
.btn:hover::before { background: rgba(255,255,255,0.1); }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn:disabled:active { transform: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-700));
  color: #fff;
  box-shadow: var(--shadow-blue);
}
.btn-primary:hover {
  box-shadow: 0 6px 24px rgba(1, 47, 107, 0.45);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
  border: 1px solid var(--color-gray-200);
}
.btn-secondary:hover {
  background: var(--color-gray-200);
  transform: translateY(-1px);
}

.btn-danger {
  background: linear-gradient(135deg, var(--color-danger), #8f0a17);
  color: #fff;
}

.btn-success {
  background: linear-gradient(135deg, var(--color-success), #15803d);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--color-primary-600);
  border: 2px solid var(--color-primary-600);
}
.btn-outline:hover {
  background: var(--color-primary-50);
}

.btn-full { width: 100%; }

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
}

/* --- Formulários --- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-gray-800);
  background: #fff;
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-input::placeholder { color: var(--color-gray-400); }
.form-textarea { resize: vertical; min-height: 100px; }

.form-error {
  font-size: var(--font-size-sm);
  color: var(--color-danger);
  padding: var(--space-3) var(--space-4);
  background: var(--color-danger-bg);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-danger);
}

.form-success {
  font-size: var(--font-size-sm);
  color: var(--color-success);
  padding: var(--space-3) var(--space-4);
  background: var(--color-success-bg);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-success);
}

/* --- Cards --- */
.card {
  background: #fff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-sm);
  padding: var(--space-6);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-gray-100);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-gray-900);
}

/* --- Badges de status --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
}

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

.badge-em-uso {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

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

/* --- Utilitários --- */
.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

.text-center { text-align: center; }
.text-sm { font-size: var(--font-size-sm); }
.text-muted { color: var(--color-gray-500); }
.font-bold { font-weight: 700; }

/* --- Responsividade base --- */
@media (max-width: 768px) {
  :root {
    --font-size-3xl: 1.5rem;
    --font-size-4xl: 1.875rem;
  }
}