@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&display=swap');

:root {
    --dlt-navy-950: #0d1026;
    --dlt-navy-900: #12173a;
    --dlt-navy-800: #1a2050;
    --dlt-teal-300: #5eead4;
    --dlt-teal-600: #0d9488;
    --dlt-gold-400: #fbbf24;
    --dlt-ivory-50: #f6f7fb;
    --dlt-danger: #dc2626;

    --dlt-sidebar-width: 255px;
    --dlt-sidebar-width-collapsed: 76px;
    --dlt-topbar-height: 64px;
    --dlt-radius: 12px;
    --dlt-radius-sm: 8px;

    /* Light theme surfaces (default) */
    --dlt-bg: var(--dlt-ivory-50);
    --dlt-surface: #ffffff;
    --dlt-surface-alt: #f6f7fb;
    --dlt-border: #e7e9f2;
    --dlt-border-soft: #eef0f6;
    --dlt-text: var(--dlt-navy-950);
    --dlt-text-muted: #6b7280;
    --dlt-text-faint: #9ca3af;
    --dlt-shadow: rgba(13, 16, 38, .08);
    --dlt-shadow-lg: rgba(13, 16, 38, .14);
    --dlt-overlay: rgba(13, 16, 38, .5);

    --bs-body-font-family: 'Inter', system-ui, sans-serif;
    --bs-body-bg: var(--dlt-bg);
}

:root[data-bs-theme="dark"] {
    --dlt-bg: #0a0d20;
    --dlt-surface: #121737;
    --dlt-surface-alt: #171c46;
    --dlt-border: rgba(255, 255, 255, .09);
    --dlt-border-soft: rgba(255, 255, 255, .06);
    --dlt-text: #f2f3f9;
    --dlt-text-muted: #a4a9c9;
    --dlt-text-faint: #7d82a8;
    --dlt-shadow: rgba(0, 0, 0, .35);
    --dlt-shadow-lg: rgba(0, 0, 0, .5);
    --dlt-overlay: rgba(0, 0, 0, .6);
    --bs-body-bg: var(--dlt-bg);
}

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--dlt-bg);
    color: var(--dlt-text);
}

h1, h2, h3, h4, h5, h6,
.dlt-display,
.dlt-metric {
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
}

a {
    text-decoration: none;
}

/* ---------- Layout shell ---------- */

.dlt-app {
    display: flex;
    min-height: 100vh;
}

.dlt-main {
    flex: 1;
    min-width: 0;
    margin-left: var(--dlt-sidebar-width);
    transition: margin-left .2s ease;
    display: flex;
    flex-direction: column;
}

.dlt-app.dlt-collapsed .dlt-main {
    margin-left: var(--dlt-sidebar-width-collapsed);
}

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

/* ---------- Sidebar ---------- */

.dlt-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--dlt-sidebar-width);
    background: linear-gradient(180deg, var(--dlt-navy-950), var(--dlt-navy-900));
    color: var(--dlt-ivory-50);
    display: flex;
    flex-direction: column;
    z-index: 1030;
    transition: width .2s ease;
    overflow-x: hidden;
}

.dlt-app.dlt-collapsed .dlt-sidebar {
    width: var(--dlt-sidebar-width-collapsed);
}

.dlt-sidebar-brand {
    display: flex;
    align-items: center;
    gap: .65rem;
    height: var(--dlt-topbar-height);
    padding: 0 1.25rem;
    flex-shrink: 0;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.dlt-sidebar-brand .dlt-logo-mark {
    width: 34px;
    height: 34px;
    border-radius: 9px;
    background: linear-gradient(135deg, var(--dlt-teal-300), var(--dlt-teal-600));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dlt-navy-950);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    flex-shrink: 0;
}

.dlt-sidebar-brand .dlt-logo-text {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.15rem;
    white-space: nowrap;
    letter-spacing: .02em;
}

.dlt-app.dlt-collapsed .dlt-sidebar-brand .dlt-logo-text {
    display: none;
}

.dlt-sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 1rem .75rem;
}

.dlt-sidebar-section-title {
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: rgba(246, 247, 251, .45);
    padding: .75rem .75rem .35rem;
    white-space: nowrap;
}

.dlt-app.dlt-collapsed .dlt-sidebar-section-title {
    text-align: center;
    padding-left: 0;
    padding-right: 0;
}

.dlt-nav-link {
    display: flex;
    align-items: center;
    gap: .85rem;
    padding: .6rem .75rem;
    border-radius: var(--dlt-radius-sm);
    color: rgba(246, 247, 251, .75);
    font-size: .9rem;
    font-weight: 500;
    white-space: nowrap;
    margin-bottom: .15rem;
}

.dlt-nav-link i {
    font-size: 1.05rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.dlt-nav-link:hover {
    background: rgba(94, 234, 212, .08);
    color: var(--dlt-ivory-50);
}

.dlt-nav-link.active {
    background: rgba(94, 234, 212, .14);
    color: var(--dlt-teal-300);
}

.dlt-app.dlt-collapsed .dlt-nav-link {
    justify-content: center;
    padding: .65rem;
}

.dlt-app.dlt-collapsed .dlt-nav-link span {
    display: none;
}

.dlt-sidebar-footer {
    padding: .85rem;
    border-top: 1px solid rgba(255, 255, 255, .08);
    flex-shrink: 0;
}

.dlt-sidebar-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .1);
    color: var(--dlt-ivory-50);
    border-radius: var(--dlt-radius-sm);
    padding: .5rem;
    font-size: .85rem;
}

.dlt-sidebar-toggle:hover {
    background: rgba(94, 234, 212, .14);
    color: var(--dlt-teal-300);
}

.dlt-app.dlt-collapsed .dlt-toggle-label {
    display: none;
}

.dlt-app.dlt-collapsed .dlt-sidebar-toggle i {
    transform: rotate(180deg);
}

/* ---------- Topbar ---------- */

.dlt-topbar {
    position: sticky;
    top: 0;
    z-index: 1020;
    height: var(--dlt-topbar-height);
    background: var(--dlt-surface);
    border-bottom: 1px solid var(--dlt-border);
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0 1.25rem;
}

.dlt-topbar-search {
    max-width: 360px;
    flex: 1;
}

.dlt-topbar-search .form-control {
    background: var(--dlt-surface-alt);
    border-color: var(--dlt-border);
}

.dlt-topbar-icon-btn {
    position: relative;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--dlt-text);
    background: var(--dlt-surface-alt);
    border: 1px solid var(--dlt-border);
}

.dlt-topbar-icon-btn .badge {
    position: absolute;
    top: -2px;
    right: -2px;
    background: var(--dlt-gold-400);
    color: var(--dlt-navy-950);
}

/* ---------- Notifications dropdown ---------- */

.dlt-notif-menu {
    width: 360px;
    max-width: 90vw;
    border-radius: var(--dlt-radius);
    border: 1px solid var(--dlt-border);
    box-shadow: 0 16px 40px var(--dlt-shadow-lg);
    overflow: hidden;
    background: var(--dlt-surface);
}

.dlt-notif-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--dlt-border-soft);
    background: var(--dlt-surface-alt);
}

.dlt-notif-list {
    max-height: 380px;
    overflow-y: auto;
}

.dlt-notif-item {
    display: flex;
    gap: .65rem;
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--dlt-border-soft);
    cursor: pointer;
    transition: background .12s ease;
}

.dlt-notif-item:hover {
    background: var(--dlt-surface-alt);
}

.dlt-notif-item.is-unread {
    background: rgba(94, 234, 212, .06);
}

.dlt-notif-item.is-unread:hover {
    background: rgba(94, 234, 212, .12);
}

.dlt-notif-icon {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: .95rem;
}

.dlt-notif-icon.teal { background: rgba(13, 148, 136, .12); color: var(--dlt-teal-600); }
.dlt-notif-icon.gold { background: rgba(251, 191, 36, .16); color: #92660a; }
.dlt-notif-icon.navy { background: rgba(13, 16, 38, .08); color: var(--dlt-navy-900); }

.dlt-notif-item .dlt-notif-title {
    font-size: .82rem;
    font-weight: 600;
    color: var(--dlt-text);
    margin-bottom: .1rem;
}

.dlt-notif-item .dlt-notif-message {
    font-size: .78rem;
    color: var(--dlt-text-muted);
    line-height: 1.35;
}

.dlt-notif-item .dlt-notif-time {
    font-size: .7rem;
    color: var(--dlt-text-faint);
    margin-top: .25rem;
}

.dlt-notif-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--dlt-teal-600);
    flex-shrink: 0;
    margin-top: .35rem;
}

.dlt-topbar-user {
    display: flex;
    align-items: center;
    gap: .6rem;
}

.dlt-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--dlt-teal-300), var(--dlt-teal-600));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dlt-navy-950);
    font-weight: 700;
    font-family: 'Space Grotesk', sans-serif;
    overflow: hidden;
}

/* ---------- KPI cards ---------- */

.dlt-kpi-card {
    background: var(--dlt-surface);
    border: 1px solid var(--dlt-border);
    border-radius: var(--dlt-radius);
    padding: 1.1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: .4rem;
    height: 100%;
    box-shadow: 0 1px 2px var(--dlt-shadow);
}

.dlt-kpi-card .dlt-kpi-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--dlt-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    margin-bottom: .35rem;
}

.dlt-kpi-value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.9rem;
    font-weight: 700;
    color: var(--dlt-text);
    line-height: 1;
}

.dlt-kpi-label {
    color: var(--dlt-text-muted);
    font-size: .82rem;
}

.dlt-bg-teal { background: rgba(13, 148, 136, .12); color: var(--dlt-teal-600); }
.dlt-bg-gold { background: rgba(251, 191, 36, .16); color: #92660a; }
.dlt-bg-navy { background: rgba(13, 16, 38, .08); color: var(--dlt-navy-900); }
.dlt-bg-danger { background: rgba(220, 38, 38, .1); color: #dc2626; }

:root[data-bs-theme="dark"] .dlt-bg-navy { background: rgba(255, 255, 255, .08); color: var(--dlt-text); }

/* ---------- Cards / panels ---------- */

.dlt-panel {
    background: var(--dlt-surface);
    border: 1px solid var(--dlt-border);
    border-radius: var(--dlt-radius);
}

.dlt-panel-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--dlt-border-soft);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dlt-panel-body {
    padding: 1.1rem 1.25rem;
}

/* ---------- Status / priority badges ---------- */

.dlt-badge-status-pending { background: rgba(107, 114, 128, .12); color: #9095a6; }
:root:not([data-bs-theme="dark"]) .dlt-badge-status-pending { color: #4b5563; }
.dlt-badge-status-scheduled { background: rgba(13, 16, 38, .08); color: var(--dlt-navy-900); }
:root[data-bs-theme="dark"] .dlt-badge-status-scheduled { background: rgba(255, 255, 255, .1); color: var(--dlt-text); }
.dlt-badge-status-in_progress { background: rgba(251, 191, 36, .16); color: #92660a; }
.dlt-badge-status-paused { background: rgba(139, 92, 246, .12); color: #a78bfa; }
:root:not([data-bs-theme="dark"]) .dlt-badge-status-paused { color: #6d28d9; }
.dlt-badge-status-completed { background: rgba(13, 148, 136, .12); color: var(--dlt-teal-600); }
.dlt-badge-status-cancelled { background: rgba(220, 38, 38, .1); color: #dc2626; }

/* ---------- Role badges ---------- */

.dlt-badge-role-super_admin { background: var(--dlt-navy-950); color: #fff; }
.dlt-badge-role-tenant_admin { background: rgba(13, 16, 38, .1); color: var(--dlt-navy-900); }
:root[data-bs-theme="dark"] .dlt-badge-role-tenant_admin { background: rgba(255, 255, 255, .1); color: var(--dlt-text); }
.dlt-badge-role-planner { background: rgba(13, 148, 136, .12); color: var(--dlt-teal-600); }
.dlt-badge-role-technician { background: rgba(251, 191, 36, .18); color: #92660a; }
.dlt-badge-role-client_viewer { background: rgba(137, 144, 184, .15); color: var(--dlt-text-muted); }

/* ---------- Kanban board ---------- */

.dlt-kanban {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(260px, 1fr);
    gap: 1rem;
    overflow-x: auto;
    padding-bottom: .5rem;
}

.dlt-kanban-col {
    background: var(--dlt-surface-alt);
    border-radius: var(--dlt-radius);
    display: flex;
    flex-direction: column;
    min-height: 200px;
}

.dlt-kanban-col-header {
    padding: .75rem .9rem;
    font-weight: 600;
    font-size: .85rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--dlt-border);
}

.dlt-kanban-col-body {
    padding: .6rem;
    display: flex;
    flex-direction: column;
    gap: .6rem;
    flex: 1;
}

.dlt-kanban-card {
    background: var(--dlt-surface);
    border: 1px solid var(--dlt-border);
    border-radius: var(--dlt-radius-sm);
    padding: .7rem .8rem;
    cursor: pointer;
    transition: box-shadow .15s ease, border-color .15s ease;
}

.dlt-kanban-card:hover {
    box-shadow: 0 6px 18px var(--dlt-shadow);
    border-color: var(--dlt-teal-300);
}

.dlt-kanban-card .dlt-kanban-code {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: .78rem;
    color: var(--dlt-teal-600);
}

.dlt-kanban-card .dlt-kanban-title {
    font-size: .85rem;
    font-weight: 600;
    margin: .2rem 0 .35rem;
    color: var(--dlt-text);
}

.dlt-kanban-card .dlt-kanban-meta {
    font-size: .74rem;
    color: var(--dlt-text-muted);
}

.dlt-kanban-next-btn {
    margin-top: .5rem;
    width: 100%;
    font-size: .75rem;
    padding: .3rem .5rem;
    border-radius: var(--dlt-radius-sm);
    border: 1px solid var(--dlt-border);
    background: var(--dlt-surface-alt);
    color: var(--dlt-text);
}

.dlt-kanban-next-btn:hover {
    background: rgba(13, 148, 136, .12);
    color: var(--dlt-teal-600);
    border-color: var(--dlt-teal-300);
}

.dlt-badge-priority-low { background: rgba(107, 114, 128, .12); color: #9095a6; }
:root:not([data-bs-theme="dark"]) .dlt-badge-priority-low { color: #4b5563; }
.dlt-badge-priority-medium { background: rgba(13, 148, 136, .12); color: var(--dlt-teal-600); }
.dlt-badge-priority-high { background: rgba(251, 191, 36, .16); color: #92660a; }
.dlt-badge-priority-critical { background: rgba(220, 38, 38, .1); color: #dc2626; }

/* ---------- Assets tree ---------- */

.dlt-tree {
    list-style: none;
    margin: 0;
    padding-left: 0;
}

.dlt-tree .dlt-tree {
    padding-left: 1.4rem;
    margin-top: .25rem;
}

.dlt-tree-node {
    margin-bottom: .2rem;
}

.dlt-tree-row {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .4rem .6rem;
    border-radius: var(--dlt-radius-sm);
    cursor: pointer;
}

.dlt-tree-row:hover {
    background: rgba(13, 148, 136, .08);
}

.dlt-tree-toggle {
    width: 18px;
    text-align: center;
    color: var(--dlt-text-faint);
    transition: transform .15s ease;
    flex-shrink: 0;
}

.dlt-tree-node.dlt-collapsed > .dlt-tree-row .dlt-tree-toggle {
    transform: rotate(-90deg);
}

.dlt-tree-node.dlt-collapsed > .dlt-tree {
    display: none;
}

.dlt-tree-icon {
    width: 26px;
    height: 26px;
    border-radius: var(--dlt-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(13, 148, 136, .1);
    color: var(--dlt-teal-600);
    flex-shrink: 0;
    font-size: .85rem;
}

/* ---------- Mobile off-canvas sidebar ---------- */

@media (max-width: 991.98px) {
    .dlt-sidebar {
        left: calc(-1 * var(--dlt-sidebar-width));
        box-shadow: 0 0 0 100vmax rgba(0, 0, 0, 0);
        transition: left .25s ease;
    }

    .dlt-app.dlt-mobile-open .dlt-sidebar {
        left: 0;
        box-shadow: 0 0 40px rgba(0, 0, 0, .25);
    }

    .dlt-main,
    .dlt-app.dlt-collapsed .dlt-main {
        margin-left: 0;
    }

    .dlt-backdrop {
        display: none;
        position: fixed;
        inset: 0;
        background: var(--dlt-overlay);
        z-index: 1025;
    }

    .dlt-app.dlt-mobile-open .dlt-backdrop {
        display: block;
    }
}

/* ---------- SweetAlert2 (DELTA theme) ---------- */

.swal2-popup {
    font-family: 'Inter', system-ui, sans-serif;
    border-radius: var(--dlt-radius);
    background: var(--dlt-surface);
    color: var(--dlt-text);
}

.swal2-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.3rem;
    color: var(--dlt-text);
}

.swal2-html-container {
    font-size: .92rem;
    color: var(--dlt-text);
}

.swal2-styled.swal2-confirm {
    border-radius: var(--dlt-radius-sm);
    font-weight: 600;
    padding: .6rem 1.4rem;
}

.swal2-styled.swal2-cancel {
    border-radius: var(--dlt-radius-sm);
    font-weight: 500;
    padding: .6rem 1.4rem;
}

.swal2-icon.swal2-success [class^='swal2-success-line'] {
    background-color: var(--dlt-teal-600);
}

.swal2-icon.swal2-success .swal2-success-ring {
    border-color: rgba(13, 148, 136, .3);
}

.swal2-timer-progress-bar {
    background: var(--dlt-teal-600);
}

.swal2-toast {
    border-radius: var(--dlt-radius-sm);
    box-shadow: 0 10px 30px var(--dlt-shadow-lg);
}

/* ---------- Bootstrap surface overrides (modals, cards, tables, forms) ---------- */

.modal-content {
    background: var(--dlt-surface);
    color: var(--dlt-text);
    border-radius: var(--dlt-radius);
    border: 1px solid var(--dlt-border);
}

.modal-header, .modal-footer {
    border-color: var(--dlt-border-soft);
}

.form-control, .form-select {
    background-color: var(--dlt-surface);
    border-color: var(--dlt-border);
    color: var(--dlt-text);
}

.form-control:focus, .form-select:focus {
    background-color: var(--dlt-surface);
    color: var(--dlt-text);
}

.table {
    color: var(--dlt-text);
    --bs-table-color: var(--dlt-text);
}

.table thead {
    background: var(--dlt-surface-alt);
    color: var(--dlt-text-muted);
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.table thead th {
    background: var(--dlt-surface-alt);
    border-bottom: 1px solid var(--dlt-border);
    font-weight: 600;
}

.table > :not(caption) > * > * {
    border-bottom-color: var(--dlt-border-soft);
}

.dropdown-menu {
    background: var(--dlt-surface);
    color: var(--dlt-text);
    border-color: var(--dlt-border);
}

.dropdown-item {
    color: var(--dlt-text);
}

.dropdown-item:hover, .dropdown-item:focus {
    background: var(--dlt-surface-alt);
    color: var(--dlt-text);
}

.card {
    border-radius: var(--dlt-radius);
}

.nav-tabs .nav-link {
    color: var(--dlt-text-muted);
}

.nav-tabs .nav-link.active {
    color: var(--dlt-teal-600);
    background: var(--dlt-surface);
    border-color: var(--dlt-border) var(--dlt-border) var(--dlt-surface);
}

/* ---------- Auth (login) ---------- */

.dlt-auth-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dlt-navy-950), var(--dlt-navy-900));
    padding: 1.5rem;
}

.dlt-auth-card {
    width: 100%;
    max-width: 400px;
    background: var(--dlt-surface);
    border-radius: var(--dlt-radius);
    padding: 2rem;
    box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
}