/* ImmoGest - Design System */
:root {
  --primary: #1a56db;
  --primary-dark: #1040b0;
  --primary-light: #e8f0fe;
  --secondary: #0e9f6e;
  --danger: #e02424;
  --warning: #ff8800;
  --warning-light: #fff3cd;
  --info: #3f83f8;
  --dark: #111928;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --white: #ffffff;
  --sidebar-w: 260px;
  --header-h: 64px;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--gray-50);
  color: var(--gray-800);
  line-height: 1.5;
  font-size: 14px;
}

/* ── LAYOUT ─────────────────────────────────────────────── */
#app { display: flex; min-height: 100vh; }

/* SIDEBAR */
#sidebar {
  width: var(--sidebar-w);
  background: var(--dark);
  color: var(--white);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform .3s;
}

#sidebar .logo {
  padding: 20px 24px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  gap: 12px;
}

#sidebar .logo-icon {
  width: 40px; height: 40px;
  background: var(--primary);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
}

#sidebar .logo h1 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -.3px;
}

#sidebar .logo span {
  font-size: 11px;
  color: var(--gray-400);
  display: block;
  margin-top: 1px;
}

#sidebar nav { flex: 1; padding: 16px 12px; overflow-y: auto; }

.nav-section {
  margin-bottom: 8px;
}

.nav-section-title {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--gray-500);
  padding: 8px 12px 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--gray-300);
  font-size: 13.5px;
  font-weight: 500;
  transition: all .15s;
  text-decoration: none;
  margin-bottom: 2px;
}

.nav-item:hover { background: rgba(255,255,255,.07); color: white; }
.nav-item.active { background: var(--primary); color: white; }
.nav-item .icon { font-size: 18px; width: 20px; text-align: center; flex-shrink: 0; }
.nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: white;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
}

#sidebar .user-zone {
  padding: 16px;
  border-top: 1px solid rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 36px; height: 36px;
  background: var(--primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.user-info .name { font-size: 13px; font-weight: 600; }
.user-info .email { font-size: 11px; color: var(--gray-400); }

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

/* HEADER */
#header {
  height: var(--header-h);
  background: white;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 50;
  gap: 16px;
}

#header h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-800);
  flex: 1;
}

.header-actions { display: flex; gap: 8px; align-items: center; }

/* CONTENT */
#content {
  padding: 28px;
  flex: 1;
}

/* ── CARDS ───────────────────────────────────────────────── */
.card {
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow);
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-800);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body { padding: 20px; }

/* ── STAT CARDS ──────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.stat-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.stat-icon.blue { background: #dbeafe; }
.stat-icon.green { background: #d1fae5; }
.stat-icon.orange { background: #fed7aa; }
.stat-icon.red { background: #fee2e2; }
.stat-icon.purple { background: #ede9fe; }

.stat-content .label {
  font-size: 12px;
  color: var(--gray-500);
  font-weight: 500;
  margin-bottom: 4px;
}

.stat-content .value {
  font-size: 24px;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.1;
}

.stat-content .sub {
  font-size: 11px;
  color: var(--gray-400);
  margin-top: 2px;
}

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all .15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--gray-100); color: var(--gray-700); border: 1px solid var(--gray-200); }
.btn-secondary:hover { background: var(--gray-200); }
.btn-success { background: var(--secondary); color: white; }
.btn-success:hover { background: #0b8a5e; }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #c01c1c; }
.btn-warning { background: var(--warning); color: white; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-xs { padding: 3px 8px; font-size: 11px; }
.btn-outline { background: transparent; border: 1px solid var(--gray-300); color: var(--gray-600); }
.btn-outline:hover { background: var(--gray-50); }

/* ── BADGES ──────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 600;
  text-transform: capitalize;
}

.badge-green { background: #d1fae5; color: #065f46; }
.badge-blue { background: #dbeafe; color: #1e40af; }
.badge-orange { background: #fed7aa; color: #92400e; }
.badge-red { background: #fee2e2; color: #991b1b; }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }
.badge-purple { background: #ede9fe; color: #5b21b6; }

/* ── TABLE ───────────────────────────────────────────────── */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
}

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

thead th {
  background: var(--gray-50);
  padding: 11px 16px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: .05em;
  border-bottom: 1px solid var(--gray-200);
  white-space: nowrap;
}

tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--gray-100);
  vertical-align: middle;
  font-size: 13.5px;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--gray-50); }

/* ── FORMS ───────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-row { display: grid; gap: 16px; margin-bottom: 16px; }
.form-row.cols-2 { grid-template-columns: 1fr 1fr; }
.form-row.cols-3 { grid-template-columns: 1fr 1fr 1fr; }

label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 5px;
}

input, select, textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 7px;
  font-size: 13.5px;
  color: var(--gray-800);
  background: white;
  transition: border .15s, box-shadow .15s;
  font-family: inherit;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,.12);
}

textarea { resize: vertical; min-height: 80px; }

.form-hint {
  font-size: 11.5px;
  color: var(--gray-400);
  margin-top: 4px;
}

/* ── MODAL ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(2px);
}

.modal {
  background: white;
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  animation: modalIn .2s ease;
}

.modal-lg { max-width: 820px; }
.modal-xl { max-width: 1000px; }
.modal-xxl { max-width: 1240px; }

@keyframes modalIn {
  from { opacity: 0; transform: translateY(-20px) scale(.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--gray-800);
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-close {
  width: 32px; height: 32px;
  border-radius: 8px;
  border: none;
  background: var(--gray-100);
  cursor: pointer;
  font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-500);
  transition: all .15s;
}
.modal-close:hover { background: var(--gray-200); color: var(--gray-800); }

.modal-body { padding: 24px; overflow-y: auto; flex: 1; }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--gray-100);
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* ── ALERTS ──────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13.5px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
}

.alert-warning { background: #fff3cd; border: 1px solid #ffc107; color: #856404; }
.alert-danger { background: #fee2e2; border: 1px solid #fca5a5; color: #991b1b; }
.alert-success { background: #d1fae5; border: 1px solid #6ee7b7; color: #065f46; }
.alert-info { background: #dbeafe; border: 1px solid #93c5fd; color: #1e40af; }

/* ── PROGRESS ────────────────────────────────────────────── */
.progress {
  height: 8px;
  background: var(--gray-100);
  border-radius: 10px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  border-radius: 10px;
  transition: width .5s ease;
}

.progress-bar.green { background: var(--secondary); }
.progress-bar.blue { background: var(--primary); }
.progress-bar.orange { background: var(--warning); }
.progress-bar.red { background: var(--danger); }

/* ── TABS ────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--gray-200);
  margin-bottom: 24px;
}

.tab-btn {
  padding: 10px 18px;
  border: none;
  background: none;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--gray-500);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all .15s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tab-btn:hover { color: var(--primary); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── GRID ────────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }

/* ── LOT CARD ────────────────────────────────────────────── */
.lot-card {
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  padding: 16px;
  transition: all .15s;
  cursor: pointer;
}

.lot-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.lot-card .lot-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 10px;
}

.lot-card .lot-num {
  width: 32px; height: 32px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 13px;
}

.lot-info .loyer {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-800);
}

.lot-info .locataire {
  font-size: 12px;
  color: var(--gray-500);
  margin-top: 2px;
}

/* ── SEARCH ──────────────────────────────────────────────── */
.search-bar {
  position: relative;
}

.search-bar input {
  padding-left: 36px;
}

.search-bar .icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
  font-size: 16px;
}

/* ── EMPTY STATE ─────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-400);
}

.empty-state .icon { font-size: 48px; margin-bottom: 12px; }
.empty-state h3 { font-size: 16px; font-weight: 600; color: var(--gray-600); margin-bottom: 6px; }
.empty-state p { font-size: 13px; }

/* ── TOAST ───────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--dark);
  color: white;
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-lg);
  animation: toastIn .3s ease;
  max-width: 360px;
}

.toast.success { background: var(--secondary); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); }

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

/* ── LOADER ──────────────────────────────────────────────── */
.loader {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

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

/* ── UTILS ───────────────────────────────────────────────── */
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-sm { font-size: 12px; }
.text-muted { color: var(--gray-400); }
.text-success { color: var(--secondary); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.mb-0 { margin-bottom: 0; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mt-16 { margin-top: 16px; }
.gap-8 { gap: 8px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-1 { flex: 1; }
.hidden { display: none !important; }
.w-full { width: 100%; }

.separator {
  height: 1px;
  background: var(--gray-100);
  margin: 20px 0;
}

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  :root { --sidebar-w: 220px; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  #sidebar { transform: translateX(-100%); }
  #sidebar.open { transform: translateX(0); }
  #main { margin-left: 0; }
  #content { padding: 16px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-row.cols-2, .form-row.cols-3 { grid-template-columns: 1fr; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

/* ── ALERTES PANEL ─────────────────────────────────────── */
#alertes-panel { display: none; }
#alertes-panel.open { display: flex !important; }
#header { position: relative; }