:root {
    --vf-primary: #1e3a8a;
    --vf-primary-light: #3b82f6;
    --vf-accent: #f59e0b;
    --vf-dark: #0f172a;
    --vf-gray-50: #f8fafc;
    --vf-gray-100: #f1f5f9;
    --vf-gray-200: #e2e8f0;
    --vf-gray-300: #cbd5e1;
    --vf-gray-500: #64748b;
    --vf-gray-600: #475569;
    --vf-gray-700: #334155;
    --vf-success: #10b981;
    --vf-danger: #ef4444;
    --vf-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --vf-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --sidebar-width: 240px;
    --sidebar-collapsed-width: 64px;
}

* { box-sizing: border-box; }

body {
    background: var(--vf-gray-50);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    color: #1e293b;
    margin: 0;
    min-height: 100vh;
}

/* ===== SIDEBAR ===== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: linear-gradient(180deg, var(--vf-primary) 0%, var(--vf-dark) 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: width 0.2s ease, transform 0.25s ease;
    overflow: hidden;
}

.sidebar-brand {
    padding: 1.2rem 1rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
    height: 70px;
}

.brand-logo {
    font-size: 1.8rem;
    line-height: 1;
    flex-shrink: 0;
}

.brand-text {
    overflow: hidden;
    white-space: nowrap;
    opacity: 1;
    transition: opacity 0.15s;
}

.brand-name {
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

.brand-sub {
    font-size: 0.72rem;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-top: 2px;
}

.sidebar-nav {
    padding: 1rem 0.7rem;
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.nav-section {
    margin-bottom: 1.2rem;
}

.nav-section-title {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: rgba(255, 255, 255, 0.45);
    padding: 0.4rem 0.8rem 0.5rem;
    font-weight: 600;
    overflow: hidden;
    white-space: nowrap;
}

.sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.55rem 0.8rem;
    color: rgba(255, 255, 255, 0.78) !important;
    border-radius: 6px;
    margin-bottom: 2px;
    font-weight: 500;
    font-size: 0.875rem;
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
    overflow: hidden;
    position: relative;
}

.sidebar .nav-link i {
    font-size: 1rem;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar .nav-link span {
    overflow: hidden;
    transition: opacity 0.15s;
}

.sidebar .nav-link:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff !important;
}

.sidebar .nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    color: #fff !important;
    font-weight: 600;
}

.sidebar-collapse-btn {
    background: rgba(255, 255, 255, 0.05);
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.6);
    padding: 0.55rem 1rem;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.78rem;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    flex-shrink: 0;
    overflow: hidden;
    white-space: nowrap;
}

.sidebar-collapse-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.sidebar-collapse-btn i {
    transition: transform 0.2s;
    flex-shrink: 0;
}

.sidebar-user {
    padding: 0.8rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

.user-btn {
    width: 100%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #fff;
    padding: 0.5rem 0.7rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-align: left;
    font-size: 0.85rem;
    overflow: hidden;
    white-space: nowrap;
}

.user-btn::after { flex-shrink: 0; }

.user-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.user-btn i {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.user-info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    transition: opacity 0.15s;
}

.user-name {
    font-weight: 600;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 0.7rem;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-top: 2px;
}

/* ===== STATO COLLAPSED (solo desktop) ===== */
@media (min-width: 992px) {
    html.sidebar-collapsed .sidebar {
        width: var(--sidebar-collapsed-width);
    }
    html.sidebar-collapsed .brand-text,
    html.sidebar-collapsed .nav-section-title span,
    html.sidebar-collapsed .nav-link span,
    html.sidebar-collapsed .user-info,
    html.sidebar-collapsed .collapse-label,
    html.sidebar-collapsed .user-btn::after {
        opacity: 0;
        width: 0;
        visibility: hidden;
    }
    html.sidebar-collapsed .nav-section-title {
        padding: 0.4rem 0;
        text-align: center;
        height: 8px;
        position: relative;
    }
    html.sidebar-collapsed .nav-section-title::after {
        content: '';
        display: block;
        height: 1px;
        background: rgba(255,255,255,0.12);
        margin: 0 12px;
    }
    html.sidebar-collapsed .sidebar-brand {
        justify-content: center;
        padding: 1.2rem 0 1rem;
    }
    html.sidebar-collapsed .sidebar .nav-link {
        justify-content: center;
        padding: 0.6rem 0;
    }
    html.sidebar-collapsed .user-btn {
        justify-content: center;
        padding: 0.5rem;
    }
    html.sidebar-collapsed .sidebar-collapse-btn {
        justify-content: center;
        padding: 0.55rem 0;
    }
    html.sidebar-collapsed .sidebar-collapse-btn i {
        transform: rotate(180deg);
    }
    html.sidebar-collapsed .main-content {
        margin-left: var(--sidebar-collapsed-width);
    }

    /* Tooltip per icone in modalità collassata */
    html.sidebar-collapsed .sidebar [data-tooltip]:hover::before {
        content: attr(data-tooltip);
        position: absolute;
        left: calc(var(--sidebar-collapsed-width) - 6px);
        top: 50%;
        transform: translateY(-50%);
        background: var(--vf-dark);
        color: #fff;
        padding: 5px 10px;
        border-radius: 4px;
        font-size: 0.78rem;
        white-space: nowrap;
        z-index: 1500;
        font-weight: 500;
        box-shadow: var(--vf-shadow);
        pointer-events: none;
    }
}

/* Hamburger mobile */
.sidebar-toggle-mobile {
    position: fixed;
    top: 12px;
    left: 12px;
    width: 40px;
    height: 40px;
    background: var(--vf-primary);
    color: #fff;
    border: none;
    border-radius: 6px;
    z-index: 1100;
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--vf-shadow);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.sidebar-overlay.show { display: block; }

/* ===== MAIN CONTENT ===== */
.main-content {
    margin-left: var(--sidebar-width);
    padding: 1.5rem 2rem;
    min-height: 100vh;
    transition: margin-left 0.2s ease;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 991px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width) !important;
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0 !important;
        padding: 4rem 1rem 1rem;
    }
}

/* ===== CARDS / STATS ===== */
.card {
    border: 1px solid var(--vf-gray-200);
    box-shadow: var(--vf-shadow-sm);
    border-radius: 8px;
    background: #fff;
}

.card-header {
    background: #fff;
    border-bottom: 1px solid var(--vf-gray-200);
    font-weight: 600;
}

.stat-card {
    border-left: 4px solid var(--vf-primary);
    transition: transform 0.15s, box-shadow 0.15s;
    text-decoration: none;
    color: inherit;
    display: block;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    color: inherit;
    text-decoration: none;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.stat-card .stat-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--vf-gray-600);
    font-weight: 600;
}

.stat-card .stat-icon {
    position: absolute;
    top: 0.7rem;
    right: 1rem;
    font-size: 1.8rem;
    opacity: 0.18;
}

.stat-card-wrapper { position: relative; }

.stat-card .stat-link-hint {
    display: block;
    margin-top: 8px;
    font-size: 0.72rem;
    color: var(--vf-primary-light);
    font-weight: 600;
    opacity: 0;
    transition: opacity 0.15s;
}

.stat-card:hover .stat-link-hint { opacity: 1; }

/* ===== TABLES ===== */
.table {
    --bs-table-bg: transparent;
    font-size: 0.875rem;
}

.table thead th {
    background: var(--vf-gray-100);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--vf-gray-600);
    font-weight: 600;
    border-bottom: 2px solid var(--vf-gray-200);
}

.table tbody tr:hover {
    background: var(--vf-gray-50);
}

.list-group-item-clickable {
    cursor: pointer;
    transition: background 0.1s;
}

.list-group-item-clickable:hover {
    background: var(--vf-gray-50);
}

/* ===== BADGES ===== */
.badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
    font-size: 0.72rem;
    letter-spacing: 0.02em;
}

/* ===== LOGIN ===== */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%);
}

.login-card {
    max-width: 420px;
    margin: 0 auto;
    background: #fff;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}

/* ===== FORMS ===== */
.form-label {
    font-weight: 500;
    font-size: 0.875rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--vf-primary-light);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}

/* ===== BUTTONS ===== */
.btn-primary {
    background: var(--vf-primary);
    border-color: var(--vf-primary);
}

.btn-primary:hover {
    background: var(--vf-dark);
    border-color: var(--vf-dark);
}

/* ===== TIMELINE ===== */
.timeline-item {
    position: relative;
    padding-left: 24px;
    padding-bottom: 16px;
    border-left: 2px solid var(--vf-gray-200);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -7px;
    top: 4px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--vf-primary);
    border: 2px solid #fff;
}

.timeline-item.important::before {
    background: var(--vf-accent);
}

.note-important {
    border-left: 4px solid var(--vf-accent) !important;
    background: #fffbeb !important;
}

/* ===== TAG ===== */
.tag-chip {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.72rem;
    color: #fff;
    font-weight: 500;
    margin: 2px;
}

/* ===== STATE FILTERS (chips) ===== */
.state-filters {
    gap: 6px;
    flex-wrap: wrap;
    display: flex;
}

.state-filters .btn {
    padding: 4px 12px;
    font-size: 0.8rem;
    border-radius: 16px;
}

/* ===== FILTERS BAR (lista lead) ===== */
.filters-bar {
    background: #fff;
    border: 1px solid var(--vf-gray-200);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 1rem;
}

.filters-bar .filter-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--vf-gray-600);
    font-weight: 600;
    margin-bottom: 2px;
    display: block;
}

.active-filters-chips {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--vf-gray-200);
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--vf-primary);
    color: #fff;
    padding: 3px 8px 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    text-decoration: none;
}

.filter-chip:hover {
    background: var(--vf-dark);
    color: #fff;
}

.filter-chip .bi-x {
    background: rgba(255,255,255,0.25);
    border-radius: 50%;
    padding: 1px;
    font-size: 0.9rem;
}

/* ===== FOOTER ===== */
.app-footer {
    text-align: center;
    padding: 2rem 1rem 1rem;
    color: var(--vf-gray-500);
    font-size: 0.8rem;
}