/* ==========================================================================
   CAC Atividades - Postal Utility System Design System
   Conforme especificado em docs/DESIGN.md e docs/FSD.md
   ========================================================================== */

:root {
  /* Cores Principais (Postal CTT) */
  --color-primary: #a8001c;
  --color-primary-container: #d3122a;
  --color-on-primary: #ffffff;
  --color-on-primary-container: #ffe6e4;
  --color-primary-fixed: #ffdad7;
  --color-primary-fixed-dim: #ffb3af;
  --color-surface-tint: #bf0022;

  /* Superfície e Fundo */
  --color-surface: #f9f9f9;
  --color-background: #f9f9f9;
  --color-surface-dim: #dadada;
  --color-surface-bright: #f9f9f9;
  --color-surface-container-lowest: #ffffff;
  --color-surface-container-low: #f3f3f3;
  --color-surface-container: #eeeeee;
  --color-surface-container-high: #e8e8e8;
  --color-surface-container-highest: #e2e2e2;

  /* Tipografia e Textos */
  --color-on-surface: #1a1c1c;
  --color-on-background: #1a1c1c;
  --color-on-surface-variant: #5d3f3e;
  --color-secondary: #5f5e5e;
  --color-secondary-container: #e2dfde;
  --color-on-secondary: #ffffff;

  /* Bordas e Divisores */
  --color-outline: #916f6c;
  --color-outline-variant: #e6bdba;
  --color-border-subtle: #e2dfde;

  /* Sucesso e Alertas */
  --color-tertiary: #066018;
  --color-on-tertiary: #ffffff;
  --color-tertiary-container: #2a792f;
  --color-on-tertiary-container: #adffa5;
  --color-error: #ba1a1a;
  --color-on-error: #ffffff;
  --color-error-container: #ffdad6;
  --color-on-error-container: #93000a;

  /* Tipografia e Dimensões */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;   /* 8px padrão */
  --radius-lg: 0.75rem;  /* 12px */
  --radius-xl: 1rem;     /* 16px */
  --radius-full: 9999px;

  --touch-target-min: 48px;
  --input-height-min: 56px;
  --max-width-mobile: 768px;
}

/* Reset básico e tipografia */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-background);
  color: var(--color-on-surface);
  line-height: 1.5;
  font-size: 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Container Principal Mobile-First */
.app-container {
  width: 100%;
  max-width: var(--max-width-mobile);
  margin: 0 auto;
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Header Corporativo CTT */
.app-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--color-surface-container-lowest);
  border-bottom: 1px solid var(--color-surface-container-high);
  padding: 0 16px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-header-inner {
  width: 100%;
  max-width: var(--max-width-mobile);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.02em;
}

/* Cartões (Cards) */
.card {
  background-color: var(--color-surface-container-lowest);
  border: 1px solid var(--color-surface-container-high);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-on-surface);
  margin-bottom: 8px;
}

.card-subtitle {
  font-size: 14px;
  color: var(--color-secondary);
  margin-bottom: 16px;
}

/* Formulários e Inputs Ergonômicos */
.form-group {
  margin-bottom: 16px;
  position: relative;
  display: flex;
  flex-direction: column;
}

.form-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 4px;
  letter-spacing: 0.02em;
}

.form-control {
  width: 100%;
  height: var(--input-height-min);
  padding: 12px 16px;
  font-size: 16px;
  font-family: inherit;
  color: var(--color-on-surface);
  background-color: var(--color-surface-container-lowest);
  border: 1.5px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(168, 0, 28, 0.12);
}

.form-control::placeholder {
  color: #a0a0a0;
}

.form-control:disabled, .form-control[readonly] {
  background-color: var(--color-surface-container-low);
  color: var(--color-secondary);
  cursor: not-allowed;
}

/* Botões CTT Red e Secundários */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-height: var(--touch-target-min);
  padding: 12px 20px;
  font-size: 16px;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: 0 4px 10px rgba(168, 0, 28, 0.2);
}

.btn-primary:hover {
  background-color: var(--color-primary-container);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-secondary);
  border: 1.5px solid var(--color-border-subtle);
}

.btn-secondary:hover {
  background-color: var(--color-surface-container-low);
  color: var(--color-on-surface);
}

.btn-outline-danger {
  background-color: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-outline-danger:hover {
  background-color: var(--color-on-primary-container);
}

.btn-whatsapp-sm {
  background-color: #25D366;
  color: #ffffff !important;
  border: 1px solid #20ba5a;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn-whatsapp-sm:hover {
  background-color: #128C7E;
  color: #ffffff !important;
}

.btn-whatsapp-sm:active {
  transform: scale(0.98);
}


/* Alertas e Mensagens */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.alert-danger {
  background-color: var(--color-error-container);
  color: var(--color-on-error-container);
  border: 1px solid #f5b7b1;
}

.alert-success {
  background-color: var(--color-on-tertiary-container);
  color: #00380a;
  border: 1px solid #82e0aa;
}

.alert-warning {
  background-color: #fef9e7;
  color: #7d6608;
  border: 1px solid #f9e79f;
}

/* Badges e Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-success {
  background-color: #d4efdf;
  color: var(--color-tertiary);
}

.badge-danger {
  background-color: var(--color-error-container);
  color: var(--color-error);
}

/* Links */
.link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.link:hover {
  text-decoration: underline;
}

/* Barra de Navegação Inferior (Bottom Nav) */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background-color: var(--color-surface-container-lowest);
  border-top: 1px solid var(--color-surface-container-high);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 40;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.06);
}

.nav-item,
.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  text-decoration: none;
  font-size: 11px;
  font-weight: 600;
  min-width: 60px;
  padding: 6px 0;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease;
}

.nav-item.active,
.bottom-nav-item.active {
  color: var(--color-primary);
}

.nav-icon,
.bottom-nav-icon {
  width: 22px;
  height: 22px;
  font-size: 22px;
  margin-bottom: 2px;
  fill: currentColor;
}

/* Ícones de SVG Inline e Utilitários */
.icon,
.brand-icon {
  display: inline-block;
  width: 20px;
  height: 20px;
  vertical-align: middle;
  fill: currentColor;
}

/* Espaçamento para páginas com BottomNav */
.with-bottom-nav {
  padding-bottom: 80px;
}

/* Modais Customizados */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background-color: var(--color-surface-container-lowest);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 480px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--color-surface-container-high);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: modalEnter 0.25s ease-out;
}

@keyframes modalEnter {
  from {
    transform: scale(0.95) translateY(10px);
    opacity: 0;
  }
  to {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-surface-container-high);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-on-surface);
}

.modal-body {
  padding: 20px;
  font-size: 14px;
  color: var(--color-on-surface);
  line-height: 1.5;
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--color-surface-container-high);
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  background-color: var(--color-surface);
}

.card-danger {
  border-left: 4px solid var(--color-error);
  background-color: #fff9f9;
}