:root {
    --primary: #2b6cb0;
    --primary-dark: #1a4971;
    --danger: #c0392b;
    --success: #2e7d32;
    --bg: #f4f6f8;
    --panel-bg: #ffffff;
    --border: #dde3e8;
    --text: #263238;
    --text-light: #607d8b;
}

* { box-sizing: border-box; }

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

/* ---- Barre de navigation ---- */
.topbar {
    background: var(--primary-dark);
    color: #fff;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    padding: 10px 20px;
}
.topbar-brand { font-weight: 700; font-size: 1.1rem; margin-right: 20px; display: flex; align-items: center; gap: 8px; }
.topbar-logo { height: 28px; max-width: 100px; object-fit: contain; }
.topbar-nav { display: flex; gap: 12px; flex-wrap: wrap; flex: 1; }
.topbar-nav a { color: #dbe9f7; text-decoration: none; font-size: 0.92rem; }
.topbar-nav a:hover { color: #fff; text-decoration: underline; }
.nav-sep { color: #5f89ab; }
.topbar-user { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; }
.btn-logout { background: var(--danger); padding: 5px 10px; border-radius: 4px; color: #fff !important; text-decoration: none; }

/* ---- Layout ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 24px 20px 60px; }
h1 { margin-top: 0; }

.panel {
    background: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 18px 20px;
    margin-bottom: 24px;
}
.panel h2 { margin-top: 0; font-size: 1.05rem; color: var(--text-light); }

.agregat-box { border-color: var(--primary); background: #eef5fc; }

/* ---- Formulaires ---- */
label { display: flex; flex-direction: column; font-size: 0.85rem; color: var(--text-light); gap: 4px; }
input, select, button {
    font-family: inherit;
    font-size: 0.95rem;
}
input[type=text], input[type=number], input[type=date], input[type=password], select {
    padding: 7px 9px;
    border: 1px solid var(--border);
    border-radius: 5px;
    background: #fff;
}

.grid-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 14px;
    align-items: end;
}
.inline-form { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 14px; }

.btn {
    display: inline-block;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 5px;
    background: #f0f2f4;
    color: var(--text);
    cursor: pointer;
    text-decoration: none;
}
.btn:hover { background: #e5e9ec; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #fff; }
.btn-danger { background: #fdecea; border-color: #f5c6cb; color: var(--danger); }
.btn-danger:hover { background: #f8d7da; }
.btn-sm { padding: 4px 10px; font-size: 0.82rem; }

/* ---- Tableaux ---- */
.data-table { width: 100%; border-collapse: collapse; margin-top: 10px; }
.data-table th, .data-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; font-size: 0.88rem; }
.data-table th { background: #fafbfc; color: var(--text-light); font-weight: 600; }
.data-table .actions { display: flex; gap: 6px; flex-wrap: wrap; }
.data-table .empty { text-align: center; color: var(--text-light); padding: 20px; }

/* ---- Cartes du tableau de bord ---- */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; }
.card {
    background: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    text-decoration: none;
    color: var(--text);
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.card:hover { border-color: var(--primary); }
.card-num { font-size: 2rem; font-weight: 700; color: var(--primary); }

/* ---- Alertes ---- */
.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; font-size: 0.9rem; }
.alert-success { background: #e8f5e9; color: var(--success); border: 1px solid #c8e6c9; }
.alert-danger { background: #fdecea; color: var(--danger); border: 1px solid #f5c6cb; }

/* ---- Page de connexion ---- */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--primary-dark); }
.login-box { background: #fff; padding: 34px 38px; border-radius: 10px; width: 320px; box-shadow: 0 8px 24px rgba(0,0,0,0.25); }
.login-box h1 { text-align: center; font-size: 1.3rem; margin-bottom: 20px; }
.login-logo { display: block; max-width: 160px; max-height: 100px; margin: 0 auto 16px; }
.login-box form { display: flex; flex-direction: column; gap: 12px; }
.login-box button { margin-top: 8px; }

@media (max-width: 700px) {
    .topbar { flex-direction: column; align-items: flex-start; }
}
.form-agg-row {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    flex-wrap: wrap;
    margin-bottom: 24px;
}
.form-agg-row .panel-form { flex: 0 0 auto; width: fit-content; margin-bottom: 0; }
.form-agg-row .panel-agg { flex: 1 1 auto; min-width: 300px; margin-bottom: 0; }
.vertical-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 220px;
}
.vertical-form label { font-size: 0.8rem; gap: 3px; }
.vertical-form input,
.vertical-form select {
    width: 100%;
    padding: 5px 7px;
    font-size: 0.85rem;
}
.vertical-form button { align-self: flex-start; padding: 6px 14px; font-size: 0.88rem; }