/* ========== FLUXURA — MAIN STYLES ========== */
:root {
  --bg-primary: #0f1117;
  --bg-secondary: #161822;
  --bg-card: #1c1f2e;
  --bg-hover: #252838;
  --bg-input: #1e2132;
  --border: #2a2d3d;
  --border-focus: #6366f1;
  --text-primary: #e2e4f0;
  --text-secondary: #8b8fa3;
  --text-muted: #5c6078;
  --accent: #6366f1;
  --accent-hover: #7c7ff7;
  --accent-dim: rgba(99,102,241,0.15);
  --success: #22c55e;
  --success-dim: rgba(34,197,94,0.12);
  --warning: #f59e0b;
  --warning-dim: rgba(245,158,11,0.12);
  --danger: #ef4444;
  --danger-dim: rgba(239,68,68,0.12);
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --transition: 0.18s ease;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --sidebar-width: 240px;
}

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

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ===== LOGIN PAGE ===== */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow);
}

.login-card h1 {
  font-size: 28px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.login-card .subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 14px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font);
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

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

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

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

.btn-success {
  background: var(--success);
  color: #fff;
}
.btn-success:hover { opacity: 0.9; }

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover { opacity: 0.9; }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }

.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 15px; }
.btn-full { width: 100%; }

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===== LAYOUT ===== */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ===== SIDEBAR ===== */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 50;
}

.sidebar-logo {
  padding: 20px 20px 16px;
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  border-bottom: 1px solid var(--border);
}

.sidebar-nav { padding: 12px 8px; flex: 1; }

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  margin-bottom: 2px;
  transition: all var(--transition);
  font-size: 13.5px;
  font-weight: 500;
}

.sidebar-nav a:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sidebar-nav a.active {
  background: var(--accent-dim);
  color: var(--accent);
}

.sidebar-nav a .icon {
  width: 18px;
  text-align: center;
  font-size: 14px;
}

.sidebar-footer {
  padding: 12px 8px;
  border-top: 1px solid var(--border);
}

/* ===== MAIN CONTENT ===== */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 24px 32px;
  min-height: 100vh;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 22px;
  font-weight: 600;
}

.page-header .actions {
  display: flex;
  gap: 8px;
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color var(--transition);
}

.card:hover {
  border-color: #3a3d50;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.stat-card {
  text-align: center;
  padding: 24px;
}

.stat-card .stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-card .stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ===== TABLES ===== */
.table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  text-align: left;
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
}

tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg-hover); }

/* ===== BADGES ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge-success { background: var(--success-dim); color: var(--success); }
.badge-warning { background: var(--warning-dim); color: var(--warning); }
.badge-danger { background: var(--danger-dim); color: var(--danger); }
.badge-info { background: var(--accent-dim); color: var(--accent); }

/* ===== FLOW CARDS ===== */
.flow-card {
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: all var(--transition);
}

.flow-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.flow-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 12px;
}

.flow-card-title {
  font-weight: 600;
  font-size: 15px;
}

.flow-card-stats {
  display: flex;
  gap: 16px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-secondary);
}

/* ===== SEARCH/FILTER BAR ===== */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.filter-bar input, .filter-bar select {
  padding: 8px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition);
}

.filter-bar input:focus, .filter-bar select:focus {
  border-color: var(--border-focus);
}

.filter-bar input { flex: 1; min-width: 200px; }

/* ===== MODAL ===== */
.modal-backdrop {
  position: fixed;
  top: 0; right: 0; bottom: 0; left: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
}

.modal-backdrop.show {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: 100%;
  max-width: 480px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
}

.modal-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 16px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
}

/* ===== TOAST ===== */
.toast-wrapper {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow);
  animation: toastIn 0.3s ease;
  backdrop-filter: blur(12px);
}

.toast-success {
  background: rgba(34,197,94,0.15);
  color: var(--success);
  border: 1px solid rgba(34,197,94,0.3);
}

.toast-error {
  background: rgba(239,68,68,0.15);
  color: var(--danger);
  border: 1px solid rgba(239,68,68,0.3);
}

.toast-info {
  background: rgba(99,102,241,0.15);
  color: var(--accent);
  border: 1px solid rgba(99,102,241,0.3);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state .empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.4;
}

.empty-state h3 {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 13px;
  margin-bottom: 20px;
}

/* ===== LOADER ===== */
.loader-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  color: var(--text-muted);
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-right: 8px;
  vertical-align: middle;
}

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

/* ===== FLOW EDITOR ===== */
.editor-layout {
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: relative;
}

.editor-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.editor-toolbar .toolbar-section {
  display: flex;
  align-items: center;
  gap: 4px;
}

.editor-toolbar .separator {
  width: 1px;
  height: 24px;
  background: var(--border);
  margin: 0 4px;
}

.editor-toolbar h2 {
  font-size: 14px;
  font-weight: 600;
  margin-right: 12px;
}

.editor-toolbar .modified-indicator {
  color: var(--warning);
  font-size: 12px;
}

/* Canvas */
.editor-canvas {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
  background-image:
    radial-gradient(circle, var(--border) 1px, transparent 1px);
  background-size: 24px 24px;
}

.canvas-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  cursor: grab;
}

.canvas-container:active { cursor: grabbing; }

.canvas-container.dragging-block { cursor: default; }

/* Block nodes */
.flow-block {
  position: absolute;
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  min-width: 180px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
  transition: box-shadow var(--transition), border-color var(--transition);
  user-select: none;
  z-index: 2;
}

.flow-block:hover {
  box-shadow: 0 4px 24px rgba(0,0,0,0.35);
}

.flow-block.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.flow-block-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-radius: 8px 8px 0 0;
  font-size: 12px;
  font-weight: 600;
  cursor: move;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.flow-block-body {
  padding: 8px 10px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* Ports for connections */
.port {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--bg-input);
  border: 1.5px solid var(--border);
  border-radius: 50%;
  cursor: crosshair;
  z-index: 5;
  transition: all var(--transition);
}

.port:hover {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.3);
}

.port.port-out { right: -6px; top: 50%; transform: translateY(-50%); }
.port.port-in { left: -6px; top: 50%; transform: translateY(-50%); }
.port.port-out:hover { transform: translateY(-50%) scale(1.3); }
.port.port-in:hover { transform: translateY(-50%) scale(1.3); }

.port-label {
  position: absolute;
  font-size: 10px;
  color: var(--text-muted);
  white-space: nowrap;
  pointer-events: none;
}

.port-label.label-out { left: 16px; top: 50%; transform: translateY(-50%); }
.port-label.label-in { right: 16px; top: 50%; transform: translateY(-50%); }

/* SVG connections */
.connections-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.connections-svg path {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  opacity: 0.7;
}

.connections-svg path:hover {
  stroke-width: 4;
  opacity: 1;
  cursor: pointer;
  pointer-events: stroke;
}

/* Block type colors */
.block-gatilho .flow-block-header { background: var(--accent); color: #fff; }
.block-texto .flow-block-header { background: #3b82f6; color: #fff; }
.block-audio .flow-block-header { background: #f97316; color: #fff; }
.block-imagem .flow-block-header { background: #06b6d4; color: #fff; }
.block-video .flow-block-header { background: #8b5cf6; color: #fff; }
.block-documento .flow-block-header { background: #64748b; color: #fff; }
.block-delay .flow-block-header { background: var(--warning); color: #000; }
.block-condicao .flow-block-header { background: #f43f5e; color: #fff; }
.block-ia .flow-block-header { background: #a855f7; color: #fff; }
.block-classificador-ia .flow-block-header { background: #d946ef; color: #fff; }
.block-aguardar .flow-block-header { background: #eab308; color: #000; }
.block-aguardar-classificar .flow-block-header { background: #f59e0b; color: #000; }
.block-analisar-comprovante .flow-block-header { background: #10b981; color: #fff; }
.block-sequencia .flow-block-header { background: #6366f1; color: #fff; }
.block-random .flow-block-header { background: #ec4899; color: #fff; }
.block-espera-horario .flow-block-header { background: #84cc16; color: #000; }
.block-rand-cel .flow-block-header { background: #14b8a6; color: #fff; }

/* Context menu */
.context-menu {
  position: fixed;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  z-index: 300;
  min-width: 180px;
  display: none;
}

.context-menu.show { display: block; }

.context-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text-primary);
  transition: background var(--transition);
}

.context-menu-item:hover { background: var(--bg-hover); }
.context-menu-item.danger { color: var(--danger); }
.context-menu-separator { height: 1px; background: var(--border); margin: 4px 0; }

/* Block config panel */
.config-panel {
  position: fixed;
  right: 0;
  top: 40px;
  bottom: 0;
  width: 360px;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  z-index: 30;
  overflow-y: auto;
  padding: 20px;
  transform: translateX(100%);
  transition: transform 0.25s ease;
}

.config-panel.open { transform: translateX(0); }

.config-panel h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.config-panel .config-section {
  margin-bottom: 16px;
}

.config-panel .config-section h4 {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* WhatsApp page */
.instance-card {
  display: flex;
  align-items: center;
  gap: 16px;
}

.qr-display {
  text-align: center;
  padding: 20px;
  background: #fff;
  border-radius: var(--radius);
  margin-top: 12px;
}

.qr-display img {
  max-width: 256px;
  border-radius: 8px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .sidebar { width: 0; overflow: hidden; }
  .main-content { margin-left: 0; }
}