*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', sans-serif; background: #f2f4f1; color: #2c2c2c; font-size: 15px; }
a { color: var(--sage-dark, #3F5A4D); text-decoration: none; }

/* SIDEBAR */
.admin-layout { display: flex; min-height: 100vh; }
.sidebar { width: 240px; background: var(--sage-dark, #3F5A4D); color: #fff; display: flex; flex-direction: column; position: fixed; top: 0; left: 0; bottom: 0; z-index: 100; }
.sidebar-logo { padding: 24px 20px 16px; border-bottom: 1px solid rgba(255,255,255,.12); }
.sidebar-logo .site-name { font-size: 14px; font-weight: bold; line-height: 1.4; color: rgba(255,255,255,.9); }
.sidebar-logo .admin-label { font-size: 11px; color: var(--gold, #C9A66B); text-transform: uppercase; letter-spacing: 1.5px; margin-top: 4px; }
.sidebar nav { flex: 1; padding: 16px 0; }
.sidebar nav a { display: flex; align-items: center; gap: 10px; padding: 11px 20px; color: rgba(255,255,255,.75); font-size: 14px; transition: background .15s, color .15s; }
.sidebar nav a:hover, .sidebar nav a.active { background: rgba(255,255,255,.12); color: #fff; }
.sidebar nav a .nav-icon { font-size: 18px; width: 22px; text-align: center; }
.sidebar-bottom { padding: 16px 20px; border-top: 1px solid rgba(255,255,255,.12); }
.sidebar-bottom a { color: rgba(255,255,255,.6); font-size: 13px; }
.sidebar-bottom a:hover { color: #fff; }

/* MAIN */
.admin-main { margin-left: 240px; flex: 1; display: flex; flex-direction: column; }
.admin-topbar { background: #fff; border-bottom: 1px solid #e2e8f0; padding: 14px 28px; display: flex; align-items: center; justify-content: space-between; }
.admin-topbar h1 { font-size: 20px; font-weight: 600; color: #1a202c; }
.admin-content { padding: 28px; flex: 1; }

/* CARDS */
.card { background: #fff; border-radius: 10px; box-shadow: 0 1px 4px rgba(0,0,0,.08); margin-bottom: 24px; }
.card-header { padding: 18px 24px; border-bottom: 1px solid #f0f0f0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.card-header h2 { font-size: 16px; font-weight: 600; }
.card-body { padding: 24px; }

/* STAT BOXES */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px,1fr)); gap: 16px; margin-bottom: 24px; }
.stat-box { background: #fff; border-radius: 10px; padding: 20px 24px; box-shadow: 0 1px 4px rgba(0,0,0,.08); border-left: 4px solid var(--gold, #C9A66B); }
.stat-box .stat-num { font-size: 32px; font-weight: 700; color: var(--sage-dark, #3F5A4D); }
.stat-box .stat-label { font-size: 13px; color: #666; margin-top: 4px; }

/* FORMS */
.form-group { margin-bottom: 18px; }
.form-row { display: flex; gap: 16px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 180px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: #444; margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 9px 12px; border: 1px solid #d1d5db; border-radius: 6px;
  font-size: 14px; font-family: inherit; background: #fafafa; transition: border-color .2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--sage, #6B8F7B); background: #fff;
}
.form-group textarea { resize: vertical; min-height: 100px; }

/* BUTTONS */
.btn { display: inline-block; padding: 9px 20px; border-radius: 6px; font-size: 14px; font-weight: 600; border: none; cursor: pointer; transition: opacity .2s; }
.btn-primary { background: var(--sage-dark, #3F5A4D); color: #fff; }
.btn-accent { background: var(--gold, #C9A66B); color: #3d2a00; }
.btn-success { background: #2f855a; color: #fff; }
.btn-danger { background: #e53e3e; color: #fff; }
.btn-sm { padding: 5px 12px; font-size: 13px; }
.btn:hover { opacity: .85; }

/* TABLE */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; padding: 10px 14px; background: #f7f8fa; font-weight: 600; font-size: 13px; color: #555; border-bottom: 1px solid #e2e8f0; }
td { padding: 11px 14px; border-bottom: 1px solid #f0f0f0; color: #2c2c2c; vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #fafafa; }

/* BADGES */
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-attente { background: #fff8e1; color: #8a6d00; }
.badge-confirme { background: #e6f4ea; color: #1e7e34; }
.badge-annule { background: #fdecea; color: #b1362a; }

/* FILTER TABS */
.filter-tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-tabs a { padding: 6px 14px; border-radius: 20px; font-size: 13px; background: #f0f0f0; color: #555; }
.filter-tabs a.active { background: var(--sage-dark, #3F5A4D); color: #fff; }

/* ALERTS */
.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 18px; font-size: 14px; }
.alert-success { background: #f0fff4; border: 1px solid #9ae6b4; color: #276749; }
.alert-error { background: #fff5f5; border: 1px solid #fc8181; color: #9b2c2c; }

/* LOGIN */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--sage-dark, #3F5A4D); }
.login-box { background: #fff; border-radius: 12px; padding: 40px 36px; width: 360px; box-shadow: 0 8px 32px rgba(0,0,0,.2); }
.login-box h1 { font-size: 22px; margin-bottom: 6px; color: var(--sage-dark, #3F5A4D); }
.login-box p { font-size: 13px; color: #888; margin-bottom: 28px; }

/* RESPONSIVE */
@media (max-width: 768px) {
  .sidebar { width: 100%; position: static; height: auto; }
  .admin-main { margin-left: 0; }
  .admin-layout { flex-direction: column; }
}