:root {
  --primary: #00bceb;
  --primary-dark: #0098c0;
  --secondary: #1d2b4f;
  --success: #28a745;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #6366f1;
  --bg: #f0f4f8;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #1a202c;
  --text-muted: #718096;
  --sidebar-w: 240px;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  background: var(--secondary);
  color: white;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
}

.sidebar-logo {
  padding: 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-logo h1 {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.sidebar-logo p {
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  margin-top: 2px;
}

.sidebar-nav {
  padding: 12px 0;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  cursor: pointer;
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  border-left: 3px solid transparent;
  transition: all 0.15s;
}

.nav-item:hover { background: rgba(255,255,255,0.05); color: white; }
.nav-item.active {
  background: rgba(0,188,235,0.15);
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 500;
}

.nav-item .icon { font-size: 18px; width: 20px; text-align: center; }

/* Main content */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

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

.page-content {
  padding: 24px;
  flex: 1;
}

/* Cards */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

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

.card-header h3 { font-size: 15px; font-weight: 600; }
.card-body { padding: 20px; }

/* Grid */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
  text-decoration: none;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #dc2626; }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #218838; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 10px 12px; font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid var(--border); }
td { padding: 12px; font-size: 14px; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg); }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge-confirmee { background: #dbeafe; color: #1d4ed8; }
.badge-en_preparation { background: #fef3c7; color: #92400e; }
.badge-expediee { background: #e0e7ff; color: #4338ca; }
.badge-livree { background: #d1fae5; color: #065f46; }
.badge-annulee { background: #fee2e2; color: #991b1b; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--text); }
.form-control {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  background: white;
  color: var(--text);
  transition: border-color 0.15s;
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,188,235,0.15); }

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
  background: white;
  border-radius: 10px;
  width: 560px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(10px);
  transition: transform 0.2s;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.modal-overlay.open .modal { transform: translateY(0); }

.modal-header {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-header h3 { font-size: 16px; font-weight: 600; }
.modal-close { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text-muted); padding: 4px; }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; gap: 8px; justify-content: flex-end; }

/* Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  padding: 12px 16px;
  border-radius: 8px;
  color: white;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: slideIn 0.3s ease;
  max-width: 360px;
}
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-info { background: var(--info); }
.toast-whatsapp { background: #25D366; }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Status pipeline */
.pipeline {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 16px 0;
}

.pipeline-step {
  flex: 1;
  text-align: center;
  padding: 8px 4px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg);
  border-top: 3px solid var(--border);
  position: relative;
}

.pipeline-step.current {
  color: var(--primary);
  border-top-color: var(--primary);
  background: rgba(0,188,235,0.05);
}

.pipeline-step.done {
  color: var(--success);
  border-top-color: var(--success);
}

.pipeline-step.cancelled {
  color: var(--danger);
  border-top-color: var(--danger);
}

/* Products selector */
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}

.product-item {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.product-item:hover { border-color: var(--primary); background: rgba(0,188,235,0.05); }
.product-item.selected { border-color: var(--primary); background: rgba(0,188,235,0.1); }

.product-item input[type="checkbox"] { cursor: pointer; }
.product-item-info { flex: 1; }
.product-item-name { font-size: 13px; font-weight: 500; }
.product-item-price { font-size: 12px; color: var(--text-muted); }

.quantity-input { width: 50px; padding: 4px 6px; border: 1px solid var(--border); border-radius: 4px; font-size: 13px; text-align: center; }

/* Order items display */
.order-items { font-size: 13px; }
.order-items .item-row { display: flex; justify-content: space-between; padding: 4px 0; border-bottom: 1px solid var(--border); }
.order-items .item-row:last-child { border-bottom: none; }
.order-total { font-weight: 600; font-size: 14px; margin-top: 8px; text-align: right; }

/* Empty state */
.empty-state { text-align: center; padding: 48px 24px; color: var(--text-muted); }
.empty-state .icon { font-size: 48px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }

/* Stat cards */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--surface); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); }
.stat-card .label { font-size: 12px; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-card .value { font-size: 28px; font-weight: 700; margin-top: 4px; }
.stat-card .sub { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* Notification log */
.notif-log { background: #0f172a; color: #e2e8f0; border-radius: 6px; padding: 12px; font-family: monospace; font-size: 12px; max-height: 120px; overflow-y: auto; margin-top: 12px; }
.notif-log .log-entry { padding: 2px 0; }
.notif-log .log-entry.whatsapp { color: #4ade80; }
.notif-log .log-entry.error { color: #f87171; }