/* ============================================================================= */
/* STYLE.CSS - Estilos do Verificador de Cupons */
/* ============================================================================= */
/* Cores e variáveis globais, layout do login, sidebar, verificador de imagens, */
/* ferramentas de zoom/rotação, e feedback visual. */
/* ============================================================================= */

/* ============================================================================= */
/* VARIÁVEIS CSS (DESIGN TOKENS) */
/* ============================================================================= */
:root {
  /* Cores primárias (baseadas na identidade NF Solidária) */
  --cor-primaria: #2563EB;       /* Azul principal */
  --cor-primaria-hover: #1D4ED8; /* Azul mais escuro no hover */
  --cor-primaria-light: #DBEAFE; /* Azul claro para fundos */
  --cor-primaria-opacity: rgba(37, 99, 235, 0.1);

  /* Cores de status */
  --cor-sucesso: #16A34A;
  --cor-sucesso-bg: #DCFCE7;
  --cor-erro: #DC2626;
  --cor-erro-bg: #FEE2E2;
  --cor-aviso: #D97706;
  --cor-aviso-bg: #FEF3C7;

  /* Cores neutras */
  --cor-bg: #F8FAFC;           /* Fundo geral */
  --cor-surface: #FFFFFF;       /* Fundo de cards/containers */
  --cor-text: #1E293B;          /* Texto principal */
  --cor-text-secondary: #64748B;/* Texto secundário */
  --cor-text-muted: #94A3B8;    /* Texto mais fraco */
  --cor-border: #E2E8F0;        /* Bordas */
  --cor-border-focus: #2563EB;  /* Borda no focus */

  /* Sidebar */
  --sidebar-width: 280px;
  --sidebar-bg: #1E293B;       /* Fundo escuro da sidebar */
  --sidebar-text: #F1F5F9;
  --sidebar-text-muted: #94A3B8;
  --sidebar-hover: #334155;
  --sidebar-active: #2563EB;

  /* Espaçamentos */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* ============================================================================= */
/* RESET E BASE */
/* ============================================================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--cor-text);
  background-color: var(--cor-bg);
  -webkit-font-smoothing: antialiased;
}

/* ============================================================================= */
/* TELA DE LOGIN */
/* ============================================================================= */

.screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 50%, #DBEAFE 100%);
  padding: var(--spacing-md);
}

.login-container {
  width: 100%;
  max-width: 420px;
  background: var(--cor-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-xl);
}

.login-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.login-logo {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md);
  background: var(--cor-primaria-opacity);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon {
  width: 40px;
  height: 40px;
  color: var(--cor-primaria);
}

.login-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--cor-primaria);
  margin-bottom: var(--spacing-xs);
}

.login-subtitle {
  font-size: 14px;
  color: var(--cor-text-secondary);
}

/* Formulário */
.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--cor-text);
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 12px;
  width: 18px;
  height: 18px;
  color: var(--cor-text-muted);
  pointer-events: none;
}

.form-input {
  width: 100%;
  padding: 12px 12px 12px 40px;
  font-size: 14px;
  border: 1.5px solid var(--cor-border);
  border-radius: var(--radius-md);
  background: var(--cor-bg);
  color: var(--cor-text);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-input:focus {
  border-color: var(--cor-primaria);
  box-shadow: 0 0 0 3px var(--cor-primaria-opacity);
}

.form-input::placeholder {
  color: var(--cor-text-muted);
}

.form-input.has-error {
  border-color: var(--cor-erro);
}

.input-toggle {
  position: absolute;
  right: 8px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--cor-text-muted);
  display: flex;
  align-items: center;
}

.toggle-icon {
  width: 18px;
  height: 18px;
}

.form-error {
  font-size: 12px;
  color: var(--cor-erro);
  min-height: 16px;
}

/* Link esqueceu senha */
.forgot-password {
  text-align: right;
  margin-top: -4px;
}

.link-button {
  background: none;
  border: none;
  color: var(--cor-primaria);
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  font-weight: 500;
}

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

/* Alertas */
.alert-error {
  background: var(--cor-erro-bg);
  color: var(--cor-erro);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: 13px;
  border: 1px solid rgba(220, 38, 38, 0.2);
}

.alert-success {
  background: var(--cor-sucesso-bg);
  color: var(--cor-sucesso);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: 13px;
  border: 1px solid rgba(22, 163, 74, 0.2);
}

/* Botões */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  width: 100%;
  padding: 12px var(--spacing-md);
  background: var(--cor-primaria);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-primary:hover {
  background: var(--cor-primaria-hover);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-icon {
  width: 18px;
  height: 18px;
}

.btn-secondary {
  padding: 10px var(--spacing-md);
  background: var(--cor-bg);
  color: var(--cor-text);
  border: 1.5px solid var(--cor-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-secondary:hover {
  background: var(--cor-border);
}

/* ============================================================================= */
/* MODAL */
/* ============================================================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--spacing-md);
}

.modal {
  background: var(--cor-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 440px;
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--cor-border);
}

.modal-header h2 {
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--cor-text-muted);
  display: flex;
}

.modal-close:hover {
  color: var(--cor-text);
}

.modal-body {
  padding: var(--spacing-lg);
  font-size: 14px;
  color: var(--cor-text-secondary);
}

.modal-footer {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--cor-border);
}

/* ============================================================================= */
/* LAYOUT DA APLICAÇÃO (Sidebar + Main) */
/* ============================================================================= */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ============================================================================= */
/* SIDEBAR */
/* ============================================================================= */
.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
  width: 44px;
  height: 44px;
  background: var(--cor-primaria);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-icon-sm {
  width: 24px;
  height: 24px;
  color: white;
}

.sidebar-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--sidebar-text);
  line-height: 1.2;
}

.sidebar-subtitle {
  font-size: 12px;
  color: var(--sidebar-text-muted);
}

/* Navegação */
.sidebar-nav {
  flex: 1;
  padding: var(--spacing-md) 0;
  overflow-y: auto;
}

.nav-list {
  list-style: none;
}

.nav-item {
  margin: 2px var(--spacing-sm);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 12px var(--spacing-md);
  color: var(--sidebar-text-muted);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background 0.2s, color 0.2s;
  font-size: 14px;
  font-weight: 500;
}

.nav-link:hover {
  background: var(--sidebar-hover);
  color: var(--sidebar-text);
}

.nav-item.active .nav-link {
  background: var(--sidebar-active);
  color: white;
}

.nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Rodapé da sidebar */
.sidebar-footer {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
  min-width: 0;
}

.user-avatar {
  width: 36px;
  height: 36px;
  background: var(--cor-primaria);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.user-avatar span {
  font-size: 14px;
  font-weight: 600;
  color: white;
}

.user-details {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.user-nome {
  font-size: 13px;
  font-weight: 600;
  color: var(--sidebar-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-email {
  font-size: 11px;
  color: var(--sidebar-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-logout {
  background: none;
  border: none;
  color: var(--sidebar-text-muted);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s;
}

.btn-logout:hover {
  background: rgba(220, 38, 38, 0.2);
  color: #EF4444;
}

.btn-logout svg {
  width: 20px;
  height: 20px;
}

/* ============================================================================= */
/* CONTEÚDO PRINCIPAL */
/* ============================================================================= */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  background: var(--cor-bg);
}

.page {
  display: none;
  padding: var(--spacing-lg);
}

.page.active {
  display: block;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.page-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 22px;
  font-weight: 700;
  color: var(--cor-text);
}

.title-icon {
  width: 24px;
  height: 24px;
  color: var(--cor-primaria);
}

.status-badge {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-weight: 500;
}

.status-badge.busy {
  background: var(--cor-aviso-bg);
  color: var(--cor-aviso);
}

.status-badge.ready {
  background: var(--cor-sucesso-bg);
  color: var(--cor-sucesso);
}

/* ============================================================================= */
/* VERIFICADOR DE IMAGENS */
/* ============================================================================= */
.verificador-container {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--spacing-lg);
  height: calc(100vh - 160px);
  min-height: 500px;
}

/* Coluna da imagem */
.verificador-imagem {
  display: flex;
  flex-direction: column;
  background: var(--cor-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--cor-border);
  overflow: hidden;
}

/* Toolbar de ferramentas de imagem */
.imagem-toolbar {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--cor-bg);
  border-bottom: 1px solid var(--cor-border);
}

.toolbar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--cor-surface);
  border: 1px solid var(--cor-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--cor-text-secondary);
  transition: background 0.2s, color 0.2s;
}

.toolbar-btn:hover {
  background: var(--cor-primaria-light);
  color: var(--cor-primaria);
}

.toolbar-btn svg {
  width: 18px;
  height: 18px;
}

.toolbar-separator {
  width: 1px;
  height: 24px;
  background: var(--cor-border);
  margin: 0 var(--spacing-xs);
}

.zoom-display {
  font-size: 13px;
  font-weight: 600;
  color: var(--cor-text-secondary);
  min-width: 44px;
  text-align: center;
}

/* Área da imagem */
.imagem-area {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  background: #F1F5F9;
}

#cupom-imagem {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.2s ease;
  transform-origin: center center;
}

/* Placeholder */
.imagem-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  color: var(--cor-text-muted);
}

.placeholder-icon {
  width: 48px;
  height: 48px;
  color: var(--cor-text-muted);
}

.imagem-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  color: var(--cor-text-secondary);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--cor-border);
  border-top-color: var(--cor-primaria);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================================================= */
/* COLUNA DE VALIDAÇÃO */
/* ============================================================================= */
.verificador-validacao {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  background: var(--cor-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--cor-border);
  padding: var(--spacing-lg);
}

.cupom-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--cor-border);
}

.cupom-label {
  font-size: 13px;
  color: var(--cor-text-secondary);
  font-weight: 500;
}

.cupom-value {
  font-size: 14px;
  font-weight: 700;
  color: var(--cor-primaria);
}

/* Grupo de input da chave */
.chave-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.chave-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--cor-text);
}

.chave-hint {
  font-size: 12px;
  color: var(--cor-text-muted);
}

.chave-grupos {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--spacing-sm);
}

.chave-grupo {
  width: 100%;
}

.chave-grupo input {
  width: 100%;
  padding: 10px 8px;
  font-size: 15px;
  font-family: 'Courier New', monospace;
  font-weight: 600;
  text-align: center;
  letter-spacing: 3px;
  border: 1.5px solid var(--cor-border);
  border-radius: var(--radius-sm);
  background: var(--cor-bg);
  color: var(--cor-text);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.chave-grupo input:focus {
  border-color: var(--cor-primaria);
  box-shadow: 0 0 0 3px var(--cor-primaria-opacity);
  background: var(--cor-primaria-opacity);
}

.chave-grupo input.filled {
  border-color: var(--cor-sucesso);
  background: var(--cor-sucesso-bg);
}

/* Botão de validação */
.btn-validar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  width: 100%;
  padding: 12px;
  background: var(--cor-sucesso);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  margin-top: var(--spacing-sm);
}

.btn-validar:hover {
  background: #15803D;
}

.btn-validar svg {
  width: 20px;
  height: 20px;
}

/* Botões de invalidação */
.invalidacao-acoes {
  border-top: 1px solid var(--cor-border);
  padding-top: var(--spacing-md);
}

.invalidacao-titulo {
  font-size: 13px;
  font-weight: 600;
  color: var(--cor-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.invalidacao-botoes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
}

.btn-invalidar {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 10px var(--spacing-sm);
  background: var(--cor-bg);
  border: 1.5px solid var(--cor-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  font-size: 12px;
  color: var(--cor-text);
}

.btn-invalidar:hover {
  border-color: var(--cor-erro);
  background: var(--cor-erro-bg);
}

.atalho-key {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--cor-border);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--cor-text-secondary);
  flex-shrink: 0;
}

.btn-invalidar:hover .atalho-key {
  background: var(--cor-erro);
  color: white;
}

/* Feedback */
.feedback {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  text-align: center;
  margin-top: var(--spacing-sm);
}

.feedback.success {
  background: var(--cor-sucesso-bg);
  color: var(--cor-sucesso);
  border: 1px solid rgba(22, 163, 74, 0.2);
}

.feedback.error {
  background: var(--cor-erro-bg);
  color: var(--cor-erro);
  border: 1px solid rgba(220, 38, 38, 0.2);
}

.feedback.warning {
  background: var(--cor-aviso-bg);
  color: var(--cor-aviso);
  border: 1px solid rgba(217, 119, 6, 0.2);
}

/* Dica de atalhos */
.atalhos-help {
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--cor-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--cor-border);
  font-size: 12px;
  color: var(--cor-text-muted);
  text-align: center;
}

.atalhos-help kbd {
  background: var(--cor-bg);
  border: 1px solid var(--cor-border);
  border-radius: 3px;
  padding: 1px 5px;
  font-size: 11px;
  font-family: 'Courier New', monospace;
  font-weight: 600;
  color: var(--cor-text-secondary);
}