@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Paleta de Cores */
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-hover: #f1f5f9;
  --color-border: #e2e8f0;
  --color-border-subtle: #edf2f7;
  
  --color-text-main: #0f172a;
  --color-text-muted: #64748b;
  --color-text-light: #94a3b8;
  
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-primary-dark: #1e40af;
  
  --color-success: #10b981;
  --color-success-light: #d1fae5;
  --color-success-text: #065f46;
  
  --color-danger: #ef4444;
  --color-danger-light: #fee2e2;
  --color-danger-text: #991b1b;
  
  --color-warning: #f59e0b;
  --color-warning-light: #fef3c7;
  --color-warning-text: #92400e;
  
  --color-info: #0284c7;
  --color-info-light: #e0f2fe;
  
  /* WhatsApp Brand */
  --color-whatsapp: #25d366;
  --color-whatsapp-hover: #1ebd5a;
  --color-whatsapp-dark: #128c7e;

  /* Sombras & Efeitos */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Navbar */
.navbar {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-text-main);
  font-weight: 700;
  font-size: 1.25rem;
}

.nav-brand-badge {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.925rem;
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  background-color: var(--color-surface-hover);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-user-info {
  display: flex;
  flex-direction: column;
  text-align: right;
}

.nav-user-name {
  font-size: 0.875rem;
  font-weight: 600;
}

.nav-user-email {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Main Container */
.main-content {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Auth Pages Container */
.auth-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.auth-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-md);
}

.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 0.5rem;
}

.auth-header p {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: 0.35rem;
}

.form-control {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-size: 0.95rem;
  font-family: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text-main);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.925rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
}

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

.btn-whatsapp {
  background-color: var(--color-whatsapp);
  color: #ffffff;
}

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

.btn-outline {
  background-color: transparent;
  border-color: var(--color-border);
  color: var(--color-text-main);
}

.btn-outline:hover {
  background-color: var(--color-surface-hover);
}

.btn-danger {
  background-color: var(--color-danger);
  color: #ffffff;
}

.btn-danger:hover {
  background-color: #dc2626;
}

.btn-block {
  width: 100%;
}

/* Alerts / Flash Messages */
.alert {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.alert-success {
  background-color: var(--color-success-light);
  color: var(--color-success-text);
  border: 1px solid #a7f3d0;
}

.alert-error,
.alert-danger {
  background-color: var(--color-danger-light);
  color: var(--color-danger-text);
  border: 1px solid #fecaca;
}

.alert-warning {
  background-color: var(--color-warning-light);
  color: var(--color-warning-text);
  border: 1px solid #fde68a;
}

.alert-info {
  background-color: var(--color-info-light);
  color: #0369a1;
  border: 1px solid #bae6fd;
}

/* Cards & Layout */
.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border-subtle);
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-main);
}

/* Grid & Dashboard */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  .nav-container {
    flex-direction: column;
    height: auto;
    padding: 1rem;
    gap: 1rem;
  }
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-top: 0.25rem;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.badge-novo { background: #e0f2fe; color: #0369a1; }
.badge-em_contato { background: #fef3c7; color: #92400e; }
.badge-agendado { background: #f3e8ff; color: #6b21a8; }
.badge-contatado { background: #d1fae5; color: #065f46; }
.badge-falha { background: #fee2e2; color: #991b1b; }

/* Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.table th {
  background-color: #f8fafc;
  text-align: left;
  padding: 0.75rem 1rem;
  font-weight: 600;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}

.table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--color-border-subtle);
  color: var(--color-text-main);
}

.table tr:hover td {
  background-color: var(--color-surface-hover);
}

/* Footer */
.footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 1.25rem 0;
  margin-top: auto;
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}