:root {
    --primary: #0f6e5f;
    --primary-dark: #0a4d42;
    --primary-light: #e6f4f1;
    --accent: #f2a63e;
    --danger: #d9534f;
    --success: #28a745;
    --warning: #f0ad4e;
    --bg: #f4f6f8;
    --card-bg: #ffffff;
    --text: #22303f;
    --text-muted: #6c7a89;
    --border: #e3e8ec;
    --radius: 10px;
    --shadow: 0 2px 10px rgba(15, 110, 95, 0.08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Segoe UI', Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

a { text-decoration: none; color: inherit; }

/* ---------- Layout général (admin / commercial) ---------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 250px;
    background: linear-gradient(180deg, var(--primary-dark), var(--primary));
    color: #fff;
    flex-shrink: 0;
    padding: 20px 0;
    transition: transform .25s ease;
}
.sidebar .brand { padding: 0 20px 20px; font-size: 1.2rem; font-weight: 700; border-bottom: 1px solid rgba(255,255,255,.15); }
.sidebar .brand small { display: block; font-weight: 400; opacity: .8; font-size: .75rem; }
.sidebar nav a {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 20px; color: #eafaf6; font-size: .95rem;
    border-left: 3px solid transparent;
}
.sidebar nav a:hover, .sidebar nav a.active {
    background: rgba(255,255,255,.1); border-left-color: var(--accent);
}
.sidebar .icon { width: 20px; text-align: center; }

.main { flex: 1; min-width: 0; }
.topbar {
    background: #fff; border-bottom: 1px solid var(--border);
    padding: 14px 24px; display: flex; justify-content: space-between; align-items: center;
    position: sticky; top: 0; z-index: 10;
}
.topbar .user-badge { display: flex; align-items: center; gap: 10px; font-size: .9rem; }
.topbar .btn-logout { background: var(--danger); color:#fff; padding:6px 14px; border-radius:6px; font-size:.85rem; }

.content { padding: 24px; }

/* ---------- Cartes / statistiques ---------- */
.stats-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
    gap: 16px; margin-bottom: 24px;
}
.stat-card {
    background: var(--card-bg); border-radius: var(--radius); box-shadow: var(--shadow);
    padding: 18px 20px; border-left: 4px solid var(--primary);
}
.stat-card .label { font-size: .8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing:.03em;}
.stat-card .value { font-size: 1.5rem; font-weight: 700; margin-top: 6px; color: var(--primary-dark); }
.stat-card.accent { border-left-color: var(--accent); }
.stat-card.danger { border-left-color: var(--danger); }
.stat-card.success { border-left-color: var(--success); }

.card {
    background: var(--card-bg); border-radius: var(--radius); box-shadow: var(--shadow);
    padding: 20px; margin-bottom: 20px;
}
.card h2, .card h3 { margin-top: 0; }

/* ---------- Tableaux ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
table th, table td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; }
table th { background: var(--primary-light); color: var(--primary-dark); font-weight: 600; }
table tr:hover td { background: #fafcfb; }

.badge { padding: 3px 10px; border-radius: 20px; font-size: .75rem; font-weight: 600; display:inline-block; }
.badge-actif { background: #e6f6ea; color: var(--success); }
.badge-suspendu, .badge-inactif { background: #fdf1e2; color: var(--warning); }
.badge-desactive, .badge-termine { background: #fbe9e8; color: var(--danger); }

/* ---------- Formulaires ---------- */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 14px; }
label { font-size: .85rem; font-weight: 600; margin-bottom: 4px; display: block; color: var(--text-muted); }
input, select, textarea {
    width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 6px;
    font-size: .92rem; background:#fff; color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }

.btn {
    display: inline-block; padding: 9px 18px; border-radius: 6px; border: none;
    cursor: pointer; font-size: .9rem; font-weight: 600;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline { background: #fff; border: 1px solid var(--primary); color: var(--primary); }
.btn-sm { padding: 5px 12px; font-size: .8rem; }

.search-bar { display: flex; gap: 10px; margin-bottom: 16px; }
.search-bar input { flex: 1; }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: .9rem; }
.alert-success { background: #e6f6ea; color: #1e7e34; }
.alert-danger { background: #fbe9e8; color: #b02a25; }
.alert-info { background: var(--primary-light); color: var(--primary-dark); }

.pagination { display: flex; gap: 6px; margin-top: 16px; }
.pagination a, .pagination span {
    padding: 6px 12px; border-radius: 6px; border: 1px solid var(--border); font-size: .85rem;
}
.pagination a.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ---------- Tableaux responsive : cartes empilées sous 700px ---------- */
@media (max-width: 700px) {
    .table-wrap table, .table-wrap thead, .table-wrap tbody, .table-wrap th, .table-wrap td, .table-wrap tr {
        display: block; width: 100%;
    }
    .table-wrap thead tr { position: absolute; top: -9999px; left: -9999px; }
    .table-wrap tbody tr {
        margin-bottom: 14px; border: 1px solid var(--border); border-radius: 10px;
        overflow: hidden; box-shadow: var(--shadow); background: #fff;
    }
    .table-wrap tbody tr:hover td { background: transparent; }
    .table-wrap td {
        border: none; border-bottom: 1px solid var(--border);
        position: relative; padding: 10px 12px 10px 44%; text-align: right;
        min-height: 20px; display: flex; align-items: center; justify-content: flex-end;
        flex-wrap: wrap; gap: 6px;
    }
    .table-wrap td:last-child { border-bottom: none; background: var(--primary-light); }
    .table-wrap td::before {
        content: attr(data-label); position: absolute; left: 12px; top: 10px; width: 38%;
        text-align: left; font-weight: 600; color: var(--text-muted); font-size: .72rem;
        text-transform: uppercase; letter-spacing: .02em; white-space: normal;
    }
    /* Cellule sans libellé utile (ex: uniquement des boutons d'action) */
    .table-wrap td[data-label=""]::before { content: none; }
    .table-wrap td[data-label=""] { padding-left: 12px; justify-content: flex-start; flex-wrap: wrap; }
}

/* ---------- Ajustements généraux petits écrans ---------- */
@media (max-width: 600px) {
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .stat-card { padding: 14px; }
    .stat-card .value { font-size: 1.15rem; }
    .card { padding: 14px; }
    .topbar { padding: 10px 14px; }
    .topbar h1 { font-size: 1rem !important; }
    .topbar .user-badge span { display: none; }
    .content { padding: 12px; }
    .search-bar { flex-direction: column; }
    .search-bar .btn, .search-bar a { width: 100%; text-align: center; }
    .form-grid { grid-template-columns: 1fr; }
    table th, table td { font-size: .85rem; }
}

/* ---------- Modales ---------- */
.modal-overlay {
    display: none; position: fixed; inset: 0; background: rgba(15,25,35,.5);
    align-items: center; justify-content: center; z-index: 1000; padding: 16px;
}
.modal-overlay.open { display: flex; }
.modal-box {
    background: #fff; border-radius: var(--radius); padding: 24px; width: 100%; max-width: 480px;
    max-height: 90vh; overflow-y: auto;
}
.modal-box h3 { margin-top: 0; }
.modal-close { float: right; cursor: pointer; font-size: 1.3rem; color: var(--text-muted); }

/* ---------- Espace client (mobile-first) ---------- */
.client-shell { max-width: 480px; margin: 0 auto; min-height: 100vh; background: var(--bg); }
.client-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff; padding: 26px 20px 40px; border-radius: 0 0 24px 24px;
}
.client-header .greeting { font-size: 1rem; opacity: .9; }
.client-header .solde-label { font-size: .85rem; opacity: .85; margin-top: 14px; }
.client-header .solde-value { font-size: 2.1rem; font-weight: 700; margin-top: 4px; }
.client-summary {
    display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
    margin: -26px 16px 16px; position: relative; z-index: 2;
}
.client-summary .box {
    background: #fff; border-radius: 12px; padding: 14px; box-shadow: var(--shadow); text-align: center;
}
.client-summary .box .val { font-weight: 700; color: var(--primary-dark); }
.client-summary .box .lab { font-size: .72rem; color: var(--text-muted); margin-top: 2px; }
.client-menu { padding: 0 16px; display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; margin-top: 8px; }
.client-menu a {
    background: #fff; border-radius: 12px; box-shadow: var(--shadow); padding: 18px 12px;
    text-align: center; font-weight: 600; font-size: .9rem; color: var(--primary-dark);
}
.client-list { padding: 0 16px 24px; }
.client-list .item {
    background: #fff; border-radius: 10px; padding: 14px; margin-bottom: 10px; box-shadow: var(--shadow);
    display: flex; justify-content: space-between; align-items: center;
}

/* ---------- Reçu imprimable ---------- */
.recu-box { max-width: 420px; margin: 20px auto; background: #fff; padding: 24px; border: 1px dashed var(--border); }
.recu-box h2 { text-align: center; color: var(--primary-dark); margin-bottom: 0; }
.recu-box .sous-titre { text-align: center; color: var(--text-muted); margin-top: 2px; margin-bottom: 18px; }
.recu-box table td { padding: 6px 0; border: none; }
.recu-box .total { font-size: 1.2rem; font-weight: 700; color: var(--primary-dark); }
@media print { .no-print { display: none !important; } }

/* ---------- Responsive ---------- */
.menu-toggle { display: none; background: none; border: none; font-size: 1.4rem; color: var(--primary-dark); cursor: pointer; }

@media (max-width: 900px) {
    .sidebar { position: fixed; top: 0; left: 0; bottom: 0; z-index: 100; transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .menu-toggle { display: block; }
    .content { padding: 16px; }
}