/* =================================================================
   PREMIUM DASHBOARD — Tableau de bord moderne & premium
   ================================================================= */

/* ============== HEADER WELCOME ============== */
.dash-welcome {
    position: relative;
    background: linear-gradient(135deg, #1c57a3 0%, #134380 60%, #0a2540 100%);
    color: #ffffff;
    border-radius: 16px;
    padding: 28px 32px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(28, 87, 163, 0.25);
}

.dash-welcome-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.dash-welcome-title {
    color: #ffffff !important;
    font-size: 1.6rem;
    font-weight: 700;
    margin: 0 0 6px;
    letter-spacing: -0.02em;
}
.dash-welcome-name {
    background: linear-gradient(90deg, #ffd700, #ffb300);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dash-welcome-subtitle {
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
    font-size: 0.95rem;
}

.dash-time-pill {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    padding: 8px 16px;
    border-radius: 100px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    font-size: 0.95rem;
}
.dash-time-pill i {
    color: #ffd700;
    font-size: 18px;
}

.dash-welcome-decoration {
    position: absolute;
    right: -80px;
    top: -80px;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.15) 0%, transparent 60%);
    border-radius: 50%;
    pointer-events: none;
}
.dash-welcome::before {
    content: "";
    position: absolute;
    left: -50px;
    bottom: -100px;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(79, 163, 255, 0.2) 0%, transparent 60%);
    border-radius: 50%;
    pointer-events: none;
}

/* ============== KPI CARDS ============== */
.kpi-card {
    position: relative;
    background: #ffffff;
    border-radius: 16px;
    padding: 22px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
    border: 1px solid #eef0f5;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-height: 165px;
}
.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.1);
}

.kpi-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
}
.kpi-card-icon i {
    font-size: 28px;
}

.kpi-card-primary .kpi-card-icon { background: linear-gradient(135deg, #1c57a3, #134380); }
.kpi-card-success .kpi-card-icon { background: linear-gradient(135deg, #10b981, #047857); }
.kpi-card-warning .kpi-card-icon { background: linear-gradient(135deg, #f59e0b, #d97706); }
.kpi-card-info    .kpi-card-icon { background: linear-gradient(135deg, #3b82f6, #2563eb); }

.kpi-card-body {
    position: relative;
    z-index: 2;
}

.kpi-card-label {
    color: #6b7280;
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 4px;
}

.kpi-card-value {
    color: #111827;
    font-size: 1.7rem;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    display: inline-flex;
    align-items: baseline;
    gap: 4px;
}
.kpi-card-currency {
    font-size: 0.75rem;
    color: #6b7280;
    font-weight: 600;
    margin-left: 4px;
    text-transform: uppercase;
}

.kpi-card-meta {
    margin-top: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.kpi-trend {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 3px 8px;
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 700;
}
.kpi-trend i { font-size: 14px; }
.kpi-trend-up   { background: #d1fae5; color: #065f46; }
.kpi-trend-down { background: #fee2e2; color: #991b1b; }

.kpi-card-meta-text {
    color: #6b7280;
    font-size: 0.78rem;
}

.kpi-pill {
    background: #eef2ff;
    color: #3730a3;
    padding: 3px 9px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}
.kpi-pill-soft {
    background: #fef3c7;
    color: #92400e;
}

.kpi-card-shape {
    position: absolute;
    right: -30px;
    bottom: -30px;
    width: 130px;
    height: 130px;
    border-radius: 50%;
    opacity: 0.06;
    pointer-events: none;
}
.kpi-card-primary .kpi-card-shape { background: #1c57a3; }
.kpi-card-success .kpi-card-shape { background: #10b981; }
.kpi-card-warning .kpi-card-shape { background: #f59e0b; }
.kpi-card-info    .kpi-card-shape { background: #3b82f6; }

/* ============== DASH CARDS ============== */
.dash-card {
    border-radius: 16px !important;
    border: 1px solid #eef0f5 !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04) !important;
    transition: all 0.25s ease;
}
.dash-card:hover {
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.08) !important;
}

.dash-card-header {
    background: transparent !important;
    border-bottom: 1px solid #f3f4f6 !important;
    padding: 18px 22px !important;
}

.dash-card-title {
    margin: 0;
    color: #111827;
    font-size: 1.05rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}
.dash-card-title i { font-size: 22px; }

/* ============== STAT MINI ============== */
.stat-mini {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    border-radius: 12px;
    background: #fafbfc;
    border: 1px solid #eef0f5;
    transition: all 0.25s ease;
}
.stat-mini:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
}

.stat-mini-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}
.stat-mini-icon i { font-size: 22px; }
.stat-mini-warning .stat-mini-icon { background: linear-gradient(135deg, #f59e0b, #d97706); }
.stat-mini-info    .stat-mini-icon { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.stat-mini-success .stat-mini-icon { background: linear-gradient(135deg, #10b981, #047857); }

.stat-mini-label {
    color: #6b7280;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.stat-mini-value {
    color: #111827;
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1;
}

/* ============== STACK BAR ============== */
.dash-stack-bar {
    height: 12px;
    border-radius: 100px;
    background: #f3f4f6;
    display: flex;
    overflow: hidden;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
}
.dash-stack-bar-segment {
    height: 100%;
    transition: all 0.3s ease;
}
.dash-stack-bar-segment.bg-warning { background: linear-gradient(90deg, #f59e0b, #d97706); }
.dash-stack-bar-segment.bg-info    { background: linear-gradient(90deg, #3b82f6, #2563eb); }
.dash-stack-bar-segment.bg-success { background: linear-gradient(90deg, #10b981, #047857); }

.dash-stack-legend {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 0.78rem;
    color: #6b7280;
}
.dash-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
}
.dash-legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}
.dash-legend-dot.bg-warning { background: #f59e0b; }
.dash-legend-dot.bg-info    { background: #3b82f6; }
.dash-legend-dot.bg-success { background: #10b981; }

/* ============== COUNTERS (communauté) ============== */
.dash-counter {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px solid #f3f4f6;
}
.dash-counter:last-child { border-bottom: none; }

.dash-counter-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}
.dash-counter-icon i { font-size: 20px; }
.dash-counter-icon-primary { background: linear-gradient(135deg, #1c57a3, #134380); }
.dash-counter-icon-info    { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.dash-counter-icon-warning { background: linear-gradient(135deg, #f59e0b, #d97706); }
.dash-counter-icon-success { background: linear-gradient(135deg, #10b981, #047857); }

.dash-counter-label {
    color: #6b7280;
    font-size: 0.83rem;
    font-weight: 500;
}
.dash-counter-value {
    color: #111827;
    font-size: 1.3rem;
    font-weight: 700;
    line-height: 1.2;
}

/* ============== TOP PRODUITS ============== */
.dash-top-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px solid #f3f4f6;
}
.dash-top-item:last-child { border-bottom: none; }

.dash-top-rank {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    flex-shrink: 0;
}
.dash-top-rank-1 { background: linear-gradient(135deg, #fbbf24, #d97706); color: white; box-shadow: 0 4px 10px rgba(251, 191, 36, 0.4); }
.dash-top-rank-2 { background: linear-gradient(135deg, #94a3b8, #64748b); color: white; box-shadow: 0 4px 10px rgba(148, 163, 184, 0.4); }
.dash-top-rank-3 { background: linear-gradient(135deg, #d97706, #92400e); color: white; box-shadow: 0 4px 10px rgba(217, 119, 6, 0.4); }
.dash-top-rank-4,
.dash-top-rank-5 { background: #f3f4f6; color: #6b7280; }

.dash-top-name {
    color: #111827;
    font-weight: 600;
    font-size: 0.93rem;
}
.dash-top-meta {
    color: #6b7280;
    font-size: 0.78rem;
}

/* ============== RESPONSIVE ============== */
@media (max-width: 768px) {
    .dash-welcome { padding: 22px; }
    .dash-welcome-title { font-size: 1.25rem; }
    .dash-welcome-subtitle { font-size: 0.85rem; }
    .kpi-card-value { font-size: 1.4rem; }
}

/* ============== PREMIUM FORMS (global) ============== */
.form-label {
    font-weight: 600;
    color: #374151;
    font-size: 0.85rem;
    margin-bottom: 6px;
    letter-spacing: 0.01em;
}

.form-control,
.form-select {
    border: 1.5px solid #e5e7eb;
    border-radius: 10px;
    padding: 10px 14px;
    font-size: 0.92rem;
    line-height: 1.4;
    height: auto;
    min-height: 42px;
    color: #111827;
    background-color: #ffffff;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
    box-shadow: none;
}

.form-control:hover:not(:disabled):not([readonly]),
.form-select:hover:not(:disabled):not([readonly]) {
    border-color: #cbd5e1;
}

.form-control:focus,
.form-select:focus {
    border-color: #1c57a3;
    box-shadow: 0 0 0 3px rgba(28, 87, 163, 0.12);
    background-color: #ffffff;
    color: #111827;
}

.form-control:disabled,
.form-control[readonly],
.form-select:disabled {
    background-color: #f9fafb;
    color: #6b7280;
    cursor: not-allowed;
    border-color: #e5e7eb;
}

.form-control::placeholder { color: #9ca3af; opacity: 1; }

textarea.form-control { min-height: 90px; line-height: 1.5; }

.form-control-lg,
.form-select-lg { padding: 12px 16px; font-size: 1rem; border-radius: 12px; }

.form-control-sm,
.form-select-sm { padding: 7px 10px; font-size: 0.82rem; border-radius: 8px; }

/* Input group polish — compatible Bootstrap 4 & 5 */
.input-group {
    display: flex;
    flex-wrap: nowrap;
    align-items: stretch;
    width: 100%;
}
.input-group > .form-control,
.input-group > .form-select {
    position: relative;
    flex: 1 1 auto;
    width: 1%;
    min-width: 0;
    box-shadow: none;
}
.input-group > .input-group-text,
.input-group > .btn { flex: 0 0 auto; white-space: nowrap; }

.input-group-text {
    background-color: #f9fafb;
    border: 1.5px solid #e5e7eb;
    color: #4b5563;
    font-weight: 500;
    border-radius: 10px;
}

.input-group > .form-control:not(:last-child),
.input-group > .form-select:not(:last-child) { border-top-right-radius: 0; border-bottom-right-radius: 0; }
.input-group > .form-control:not(:first-child),
.input-group > .form-select:not(:first-child) { border-top-left-radius: 0; border-bottom-left-radius: 0; }
.input-group > .input-group-text:not(:last-child) { border-top-right-radius: 0; border-bottom-right-radius: 0; border-right: 0; }
.input-group > .input-group-text:not(:first-child) { border-top-left-radius: 0; border-bottom-left-radius: 0; border-left: 0; }

.input-group:focus-within .input-group-text {
    border-color: #1c57a3;
    background-color: #eff6ff;
    color: #1c57a3;
}

/* Validation states */
.form-control.is-invalid,
.form-select.is-invalid { border-color: #ef4444; }
.form-control.is-invalid:focus,
.form-select.is-invalid:focus { box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12); }
.form-control.is-valid,
.form-select.is-valid { border-color: #10b981; }
.form-control.is-valid:focus,
.form-select.is-valid:focus { box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.12); }
.invalid-feedback { font-size: 0.8rem; color: #ef4444; margin-top: 4px; }

/* Form-text helper */
.form-text { font-size: 0.78rem; color: #6b7280; margin-top: 4px; }

/* Checkboxes & radios */
.form-check { padding-left: 1.6em; }
.form-check-input {
    width: 1.1em;
    height: 1.1em;
    border: 1.5px solid #d1d5db;
    margin-top: 0.15em;
    cursor: pointer;
    transition: border-color 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
}
.form-check-input:hover { border-color: #9ca3af; }
.form-check-input:focus { border-color: #1c57a3; box-shadow: 0 0 0 3px rgba(28, 87, 163, 0.15); }
.form-check-input:checked { background-color: #1c57a3; border-color: #1c57a3; }
.form-check-label { cursor: pointer; color: #374151; font-size: 0.9rem; }

/* Form switch */
.form-switch .form-check-input { width: 2.2em; height: 1.2em; border-radius: 1em; }

/* Case à cocher posée SEULE dans une cellule de tableau (14/10/2026).
   Bootstrap place .form-check-input en position absolue, ce qui suppose un
   conteneur .form-check ; sans lui, la case sortait de sa cellule (en-tête de
   « Factures non validées ») ou tombait sous la ligne (« Bons validés »).
   Seules les cases enfants directs d'une cellule sont visées : celles rangées
   dans un .form-check gardent leur placement habituel. */
table td > input.form-check-input[type="checkbox"],
table th > input.form-check-input[type="checkbox"],
table th > .dt-column-title > input.form-check-input[type="checkbox"] {
    position: static;
    float: none;
    margin: 0;
    width: 18px;
    height: 18px;
    vertical-align: middle;
}
/* DataTables range le contenu des en-têtes dans un span.dt-column-title. */
table th > input.form-check-input[type="checkbox"],
table th > .dt-column-title > input.form-check-input[type="checkbox"] { border-color: rgba(255, 255, 255, 0.85); }

/* Buttons polish */
.btn {
    border-radius: 10px;
    font-weight: 500;
    padding: 9px 18px;
    transition: transform 0.05s ease, box-shadow 0.15s ease, background-color 0.15s ease;
    border-width: 1.5px;
}
.btn:active { transform: translateY(1px); }
.btn-lg { padding: 12px 22px; border-radius: 12px; font-size: 1rem; }
.btn-sm { padding: 6px 12px; border-radius: 8px; font-size: 0.82rem; }
.btn-xs { padding: 4px 10px; border-radius: 6px; font-size: 0.78rem; font-weight: 500; }

.btn-primary {
    background-color: #1c57a3;
    border-color: #1c57a3;
    color: #ffffff;
    box-shadow: 0 1px 2px rgba(28, 87, 163, 0.15);
}
.btn-primary:hover {
    background-color: #134380;
    border-color: #134380;
    box-shadow: 0 4px 12px rgba(28, 87, 163, 0.25);
    color: #ffffff;
}
.btn-primary:focus,
.btn-primary:active { box-shadow: 0 0 0 3px rgba(28, 87, 163, 0.25); }

.btn-success { background-color: #10b981; border-color: #10b981; }
.btn-success:hover { background-color: #047857; border-color: #047857; }
.btn-warning { background-color: #f59e0b; border-color: #f59e0b; color: #ffffff; }
.btn-warning:hover { background-color: #d97706; border-color: #d97706; color: #ffffff; }
.btn-danger { background-color: #ef4444; border-color: #ef4444; }
.btn-danger:hover { background-color: #dc2626; border-color: #dc2626; }
.btn-info { background-color: #3b82f6; border-color: #3b82f6; color: #ffffff; }
.btn-info:hover { background-color: #2563eb; border-color: #2563eb; color: #ffffff; }

.btn-light {
    background-color: #f9fafb;
    border-color: #e5e7eb;
    color: #374151;
}
.btn-light:hover { background-color: #f3f4f6; border-color: #d1d5db; color: #111827; }

.btn-outline-primary { color: #1c57a3; border-color: #1c57a3; background: transparent; }
.btn-outline-primary:hover { background-color: #1c57a3; color: #ffffff; }

/* Premium form card wrapper */
.premium-form-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    overflow: hidden;
}
.premium-form-card .premium-form-header {
    padding: 18px 24px;
    border-bottom: 1px solid #f1f5f9;
    background: linear-gradient(to right, #f8fafc, #ffffff);
}
.premium-form-card .premium-form-header h5 {
    margin: 0;
    font-weight: 600;
    color: #111827;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
}
.premium-form-card .premium-form-header h5 i { color: #1c57a3; }
.premium-form-card .premium-form-header p { margin: 4px 0 0 0; color: #6b7280; font-size: 0.85rem; }
.premium-form-card .premium-form-body { padding: 24px; }

/* Field row utility (icon + input pair) */
.premium-field-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    color: #374151;
    font-size: 0.85rem;
    margin-bottom: 6px;
    line-height: 1.2;
}
.premium-field-label i,
.premium-field-label .material-icons {
    color: #1c57a3;
    font-size: 18px;
    line-height: 1;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Icônes dans les input-group (préfixe/suffixe) */
.input-group-text {
    padding: 10px 14px;
    font-size: 0.92rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.input-group-text .material-icons,
.input-group-text i {
    font-size: 18px;
    line-height: 1;
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Boutons à icône (toggle visibilité, etc.) — alignement parfait */
.btn .material-icons,
.btn i.material-icons {
    line-height: 1;
    font-size: 18px;
    vertical-align: middle;
}
.btn-icon,
.input-group .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

/* Toggle password : bouton hauteur = input, icône parfaitement centrée */
.password-toggle .btn-light {
    padding: 0 14px;
    min-width: 46px;
    border-left: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: #f9fafb;
}
.password-toggle .btn-light:hover { background-color: #f3f4f6; }
.password-toggle .btn-light .material-icons { font-size: 20px; }

/* Section divider inside forms */
.premium-form-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 24px 0 16px;
    color: #6b7280;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}
.premium-form-divider::before,
.premium-form-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #e5e7eb;
}

/* ============== HEADER USER DROPDOWN ============== */
/* Positionnement forcé pour bypasser Popper.js (qui colle le menu au bord droit) */
.main-header .dropdown-menu,
.main-header .dropdown-menu-end,
.main-header .dropdown-menu[data-bs-popper] {
    position: absolute !important;
    top: calc(100% + 12px) !important;
    right: 16px !important;
    left: auto !important;
    transform: none !important;
    inset: auto 16px auto auto !important;
    min-width: 260px;
    padding: 8px;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12), 0 2px 6px rgba(15, 23, 42, 0.05);
    background: #ffffff;
    z-index: 1050 !important;
}
.main-header .dropdown {
    position: relative;
}

.main-header .dropdown-menu .dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    color: #374151;
    transition: background-color 0.12s ease, color 0.12s ease;
    white-space: nowrap;
}
.main-header .dropdown-menu .dropdown-item:hover,
.main-header .dropdown-menu .dropdown-item:focus {
    background-color: #f3f4f6;
    color: #111827;
}
.main-header .dropdown-menu .dropdown-item.text-danger:hover {
    background-color: #fef2f2;
    color: #dc2626;
}
.main-header .dropdown-menu .dropdown-item .material-icons {
    font-size: 18px;
    color: #6b7280;
    flex-shrink: 0;
}
.main-header .dropdown-menu .dropdown-item.text-danger .material-icons {
    color: #ef4444;
}

.main-header .dropdown-menu .dropdown-divider {
    margin: 6px 4px;
    border-color: #f1f5f9;
}

/* Toggle (nom utilisateur) */
.main-header #dropdownAccount {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 8px;
    color: #374151;
    font-weight: 500;
    transition: background-color 0.12s ease;
    text-decoration: none;
}
.main-header #dropdownAccount:hover { background-color: #f3f4f6; }
.main-header #dropdownAccount::after {
    border-top-color: #6b7280;
    margin-left: 2px;
}

/* Avatar par défaut (initiales) quand pas de photo de profil */
.main-header .header-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: #ffffff;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    line-height: 1;
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.12);
    flex-shrink: 0;
    background: linear-gradient(135deg, #1c57a3, #134380);
}
.main-header img.img-xs.rounded-circle {
    width: 32px;
    height: 32px;
    object-fit: cover;
}
.main-header .header-user-name {
    font-size: 0.9rem;
    color: #374151;
}
@media (max-width: 576px) {
    .main-header .header-user-name { display: none; }
}

/* Sur mobile : menu en pleine largeur avec marges */
@media (max-width: 576px) {
    .main-header .dropdown-menu {
        margin-right: 12px !important;
        margin-left: 12px !important;
        min-width: 0;
    }
}

/* ============== BOUTON RETOUR GLOBAL ============== */
.back-button-wrapper {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

/* Style "Retour" — appliqué au bouton global ET aux boutons custom détectés par le JS */
a.btn-back,
.btn-back {
    display: inline-flex !important;
    align-items: center;
    gap: 8px;
    padding: 9px 18px 9px 14px;
    background: #ffffff;
    border: 1.5px solid #cbd5e1;
    border-radius: 10px;
    color: #1c57a3;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease,
                transform 0.18s ease, box-shadow 0.18s ease;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    cursor: pointer;
    line-height: 1.2;
}

a.btn-back:hover,
a.btn-back:focus-visible,
.btn-back:hover,
.btn-back:focus-visible {
    background: linear-gradient(135deg, #1c57a3, #134380);
    border-color: #1c57a3;
    color: #ffffff;
    transform: translateX(-3px);
    box-shadow: 0 6px 16px rgba(28, 87, 163, 0.28);
    text-decoration: none;
    outline: none;
}

a.btn-back:active,
.btn-back:active {
    transform: translateX(-3px) translateY(1px);
    box-shadow: 0 2px 6px rgba(28, 87, 163, 0.25);
}

/* Icône */
.btn-back .material-icons {
    font-size: 18px;
    line-height: 1;
    color: #1c57a3;
    transition: color 0.18s ease, transform 0.18s ease;
}
.btn-back:hover .material-icons,
.btn-back:focus-visible .material-icons {
    color: #ffffff;
    transform: translateX(-2px);
}

/* Texte */
.btn-back span {
    font-weight: 600;
    letter-spacing: 0.01em;
}