:root {
    --itd-primary: #5c2483;
    --itd-primary-hover: #481a69;
    --itd-primary-light: #f3e8ff;
    --itd-primary-dark: #3b1154;
    --itd-secondary: #0f172a;
    --itd-surface: #ffffff;
    --itd-background: #f8fafc;
    --itd-sidebar-bg: #111827;
    --itd-sidebar-text: #94a3b8;
    --itd-sidebar-active: #ffffff;
    --itd-border: #e2e8f0;
    --itd-text-main: #1e293b;
    --itd-text-muted: #64748b;
    --itd-success: #10b981;
    --itd-warning: #f59e0b;
    --itd-danger: #ef4444;
    --itd-info: #0ea5e9;
    --itd-radius: 8px;
    --itd-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --itd-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

body {
    background-color: var(--itd-background);
    color: var(--itd-text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Sidebar & Navigation */
.itd-sidebar {
    width: 260px;
    background-color: var(--itd-sidebar-bg);
    color: var(--itd-sidebar-text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.itd-brand {
    padding: 1.25rem 1.5rem;
    font-size: 1.15rem;
    font-weight: 700;
    color: #ffffff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.itd-brand-badge {
    background: linear-gradient(135deg, #7e22ce, #581c87);
    color: #fff;
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 1.1rem;
}

.itd-nav-list {
    list-style: none;
    padding: 1rem 0.75rem;
    margin: 0;
    flex-grow: 1;
    overflow-y: auto;
}

.itd-nav-item {
    margin-bottom: 4px;
}

.itd-nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.7rem 0.9rem;
    color: var(--itd-sidebar-text);
    border-radius: var(--itd-radius);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: all 0.2s;
}

.itd-nav-link:hover {
    color: var(--itd-sidebar-active);
    background-color: rgba(255, 255, 255, 0.06);
}

.itd-nav-link.active {
    color: #ffffff;
    background: linear-gradient(90deg, var(--itd-primary) 0%, #7e22ce 100%);
    box-shadow: 0 2px 4px rgba(92, 36, 131, 0.4);
}

.itd-nav-link i {
    font-size: 1.15rem;
}

.itd-nav-heading {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #64748b;
    padding: 0.75rem 0.9rem 0.25rem;
    font-weight: 700;
}

/* Main Content Area */
.itd-main-wrapper {
    margin-left: 260px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: all 0.3s ease;
}

.itd-topbar {
    background-color: var(--itd-surface);
    border-bottom: 1px solid var(--itd-border);
    padding: 0.85rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 900;
}

.itd-content {
    padding: 1.5rem;
    flex-grow: 1;
}

/* Cards & Surfaces */
.itd-card {
    background-color: var(--itd-surface);
    border: 1px solid var(--itd-border);
    border-radius: var(--itd-radius);
    box-shadow: var(--itd-shadow-sm);
    margin-bottom: 1.5rem;
}

.itd-card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--itd-border);
    background-color: transparent;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.itd-card-body {
    padding: 1.25rem;
}

/* Metric / Stat Card */
.itd-stat-card {
    background: var(--itd-surface);
    border: 1px solid var(--itd-border);
    border-radius: var(--itd-radius);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: var(--itd-shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

.itd-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--itd-shadow);
}

.itd-stat-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.itd-stat-icon.primary { background: #f3e8ff; color: var(--itd-primary); }
.itd-stat-icon.success { background: #ecfdf5; color: var(--itd-success); }
.itd-stat-icon.warning { background: #fffbeb; color: var(--itd-warning); }
.itd-stat-icon.danger { background: #fef2f2; color: var(--itd-danger); }
.itd-stat-icon.info { background: #f0f9ff; color: var(--itd-info); }

.itd-stat-label {
    font-size: 0.82rem;
    color: var(--itd-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 2px;
}

.itd-stat-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--itd-text-main);
    line-height: 1.2;
}

/* Buttons */
.btn-itd-primary {
    background-color: var(--itd-primary);
    color: #ffffff;
    border: 1px solid var(--itd-primary);
    font-weight: 500;
}

.btn-itd-primary:hover {
    background-color: var(--itd-primary-hover);
    border-color: var(--itd-primary-hover);
    color: #ffffff;
}

.btn-itd-outline {
    background-color: transparent;
    color: var(--itd-primary);
    border: 1px solid var(--itd-primary);
    font-weight: 500;
}

.btn-itd-outline:hover {
    background-color: var(--itd-primary);
    color: #ffffff;
}

/* Tables */
.table-itd {
    width: 100%;
    margin-bottom: 0;
}

.table-itd th {
    background-color: #f8fafc;
    color: #475569;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 600;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--itd-border);
}

.table-itd td {
    padding: 0.85rem 1rem;
    vertical-align: middle;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--itd-border);
}

.table-itd tr:hover td {
    background-color: #fbfbfe;
}

/* Badges */
.badge-status {
    padding: 4px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
}
.badge-status.active, .badge-status.paid, .badge-status.completed { background: #dcfce7; color: #15803d; }
.badge-status.pending, .badge-status.partial { background: #fef3c7; color: #b45309; }
.badge-status.overdue, .badge-status.defaulted, .badge-status.cancelled { background: #fee2e2; color: #b91c1c; }
.badge-status.finished { background: #e0e7ff; color: #4338ca; }

/* Responsive / Mobile */
@media (max-width: 991.98px) {
    .itd-sidebar {
        transform: translateX(-100%);
    }
    .itd-sidebar.show {
        transform: translateX(0);
    }
    .itd-main-wrapper {
        margin-left: 0;
    }
}

/* Mobile Friendly Single-Hand Controls */
.mobile-action-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #ffffff;
    box-shadow: 0 -4px 10px rgba(0,0,0,0.06);
    display: flex;
    justify-content: space-around;
    padding: 8px 12px;
    z-index: 1050;
    border-top: 1px solid var(--itd-border);
}

.mobile-action-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--itd-text-muted);
    text-decoration: none;
    gap: 2px;
}

.mobile-action-item.active, .mobile-action-item:hover {
    color: var(--itd-primary);
}

.mobile-action-item i {
    font-size: 1.3rem;
}

/* Print Styles */
@media print {
    .itd-sidebar, .itd-topbar, .no-print, .mobile-action-bar {
        display: none !important;
    }
    .itd-main-wrapper {
        margin-left: 0 !important;
        padding: 0 !important;
    }
    body {
        background: #ffffff !important;
        color: #000000 !important;
    }
}