/**
 * admin.css - Estilos Oficiais do Painel Administrativo
 * Plataforma Toduma Card • Cartão de Visita Digital
 * Inspirado no padrão estrutural e visual da Revista Ícone
 */

:root {
  --primary: #0f172a;
  --primary-hover: #1e293b;
  --primary-light: rgba(15, 23, 42, 0.08);
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-light: rgba(37, 99, 235, 0.1);
  
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --border-light: #f1f5f9;

  --sidebar-bg: #0b1120;
  --sidebar-border: #1e293b;
  --sidebar-fg: #f1f5f9;
  --sidebar-muted: #94a3b8;
  --sidebar-hover: rgba(255, 255, 255, 0.06);
  --sidebar-active: #2563eb;

  --success: #0d9488;
  --success-bg: rgba(13, 148, 136, 0.1);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --warning: #d97706;
  --warning-bg: rgba(217, 119, 6, 0.1);
  --info: #0284c7;
  --info-bg: rgba(2, 132, 199, 0.1);

  --radius: 8px;
  --radius-lg: 12px;
  --radius-sm: 4px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
  font-family: 'DM Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-main);
  background: var(--bg-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }

/* Layout Shell */
.admin-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px 1fr;
  transition: grid-template-columns 0.25s ease;
}

/* Sidebar */
.admin-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  background: var(--sidebar-bg);
  color: var(--sidebar-fg);
  border-right: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  z-index: 40;
  overflow-y: auto;
}

.admin-sidebar__brand {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--sidebar-border);
}

.admin-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.admin-brand__icon {
  width: 36px;
  height: 36px;
  background: var(--primary);
  border: 1px solid var(--sidebar-border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  flex-shrink: 0;
}

.admin-brand__name {
  display: block;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  color: #ffffff;
}

.admin-brand__sub {
  display: block;
  font-size: 0.72rem;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.admin-nav {
  padding: 1rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.admin-nav__heading {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.75px;
  color: #64748b;
  padding: 0.75rem 0.75rem 0.35rem;
}

.admin-nav__item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius);
  color: var(--sidebar-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.15s ease;
}

.admin-nav__item i, .admin-nav__item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.admin-nav__item:hover {
  color: #ffffff;
  background: var(--sidebar-hover);
}

.admin-nav__item.is-active {
  color: #ffffff;
  background: var(--sidebar-active);
  font-weight: 600;
}

/* Main Area */
.admin-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow-x: hidden;
}

.admin-topbar {
  position: sticky;
  top: 0;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 30;
  box-shadow: var(--shadow-sm);
}

.admin-topbar__left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.btn-sidebar-toggle {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
}

.admin-topbar__title h1 {
  font-size: 1.25rem;
  font-weight: 700;
}

.admin-topbar__right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.admin-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-left: 1.25rem;
  border-left: 1px solid var(--border);
}

.admin-user__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.admin-user__name {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.2;
}

.admin-user__role {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

.admin-content-shell {
  padding: 2rem;
  flex: 1;
}

/* Cards & Layout */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.card__header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.card__content {
  padding: 1.5rem;
}

.card__footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* KPI Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  border-color: #cbd5e1;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon svg, .stat-icon i {
  width: 24px;
  height: 24px;
}

.stat-number {
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--text-main);
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 2px;
}

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn svg, .btn i {
  width: 16px;
  height: 16px;
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.78rem;
}

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

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

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

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

.btn-secondary {
  background: #ffffff;
  color: var(--text-main);
  border-color: var(--border);
}

.btn-secondary:hover {
  background: var(--bg-main);
  border-color: #cbd5e1;
}

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

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

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

.admin-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.admin-table th {
  background: var(--bg-main);
  padding: 0.85rem 1.25rem;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.admin-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.admin-table tbody tr:hover {
  background: #fbfcfe;
}

.admin-table tbody tr:last-child td {
  border-bottom: none;
}

/* Badges de Status */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

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

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

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

.badge-neutral {
  background: var(--border-light);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* Formulários */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

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

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.45rem;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.form-control {
  width: 100%;
  padding: 0.65rem 0.95rem;
  font-size: 0.875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #ffffff;
  color: var(--text-main);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

textarea.form-control {
  min-height: 90px;
  resize: vertical;
}

.form-hint {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

/* Alertas */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.alert svg, .alert i {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.alert-success {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid rgba(13, 148, 136, 0.3);
}

.alert-error {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Responsividade */
@media (max-width: 960px) {
  .admin-shell {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: fixed;
    left: -270px;
    width: 260px;
    transition: left 0.25s ease;
  }

  .admin-sidebar.is-open {
    left: 0;
  }

  .btn-sidebar-toggle {
    display: inline-flex;
  }

  .admin-content-shell {
    padding: 1.25rem;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }
}