/* ============================================================
   TekiEazi WiFi Management — Light Theme
   ============================================================ */

:root {
    /* TekiEazi brand palette */
    --te-brand: #8DC63F;          /* Lime green — primary */
    --te-brand-dark: #6FA830;     /* Deeper lime for hover / pressed */
    --te-brand-bg: rgba(141,198,63,0.10);
    --te-accent: #F7941D;         /* Orange — accent / highlights */
    --te-accent-bg: rgba(247,148,29,0.10);
    --te-ink: #1A1A1A;            /* Black — text / outlines */

    /* Surfaces */
    --te-sidebar-bg: #FFFFFF;
    --te-content-bg: #F8F7FA;
    --te-card-border: #E7E7E8;
    --te-white: #FFFFFF;

    /* Text */
    --te-text-dark: #1A1A1A;
    --te-text-secondary: #5E5C66;
    --te-text-muted: #A5A2AD;

    /* Layout */
    --te-sidebar-width: 240px;
    --te-header-height: 62px;
}

/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; }

html { font-size: 14px; }

body {
    margin: 0;
    padding: 0;
    font-family: 'Outfit', system-ui, -apple-system, sans-serif;
    background: var(--te-content-bg);
    color: var(--te-text-dark);
    -webkit-font-smoothing: antialiased;
}

/* ===== App Shell ===== */
.app-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ============================================================
   HEADER BAR
   ============================================================ */
.app-header {
    background: var(--te-white);
    height: var(--te-header-height);
    display: flex;
    align-items: center;
    padding: 0 20px;
    gap: 8px;
    flex-shrink: 0;
    z-index: 200;
    border-bottom: 1px solid var(--te-card-border);
    box-shadow: 0 1px 3px rgba(47,43,61,0.04);
}

.app-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-toggle {
    background: transparent;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    color: var(--te-text-secondary);
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 150ms;
}

.sidebar-toggle:hover {
    background: var(--te-content-bg);
    color: var(--te-text-dark);
}

.app-header-logo {
    display: flex;
    align-items: center;
    gap: 0;
    text-decoration: none;
}

.app-header-icon {
    height: 36px;
    width: auto;
    display: none;
}

.app-header-logo-full {
    height: 38px;
    width: auto;
}

/* Horizontal top nav inside header */
.top-nav {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-left: 28px;
    flex: 1;
}

.top-nav-item {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--te-text-secondary);
    text-decoration: none;
    transition: all 150ms;
    white-space: nowrap;
}

.top-nav-item i {
    font-size: 14px;
}

.top-nav-item:hover {
    color: var(--te-brand);
    background: var(--te-brand-bg);
    text-decoration: none;
}

.top-nav-item.active {
    color: var(--te-ink);
    background: linear-gradient(135deg, var(--te-brand) 0%, var(--te-brand-dark) 100%);
    box-shadow: 0 2px 8px rgba(141,198,63,0.35);
}

.top-nav-item.active i {
    color: var(--te-ink);
}

/* Top nav dropdowns */
.top-nav-dropdown {
    position: relative;
}

.top-nav-caret {
    font-size: 9px;
    margin-left: 2px;
    opacity: 0.5;
    transition: transform 0.2s;
}

.top-nav-dropdown:hover .top-nav-caret {
    transform: rotate(180deg);
    opacity: 1;
}

.top-nav-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.08);
    padding: 6px 0;
    z-index: 2000;
    padding-top: 10px;
}

.top-nav-dropdown-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 0;
    right: 0;
    height: 10px;
}

.top-nav-dropdown:hover .top-nav-dropdown-menu {
    display: block;
}

.top-nav-dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--te-text-secondary);
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
}

.top-nav-dropdown-menu a:hover {
    background: var(--te-brand-bg);
    color: var(--te-brand-dark);
}

.top-nav-dropdown-menu a i {
    width: 18px;
    text-align: center;
    font-size: 13px;
    color: var(--te-brand);
}

.top-nav-dropdown-divider {
    height: 1px;
    background: #e9ecef;
    margin: 4px 12px;
}

/* Header right */
.app-header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
}

.app-header-router-select select,
.app-header-router-select .form-select {
    background: var(--te-content-bg);
    border: 1px solid var(--te-card-border);
    border-radius: 8px;
    color: var(--te-text-secondary);
    font-size: 12.5px;
    padding: 6px 12px;
    font-family: 'Outfit', sans-serif;
    min-width: 160px;
}

.app-header-router-select select:focus,
.app-header-router-select .form-select:focus {
    outline: none;
    border-color: var(--te-brand);
    box-shadow: 0 0 0 3px rgba(141,198,63,0.15);
}

.header-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--te-text-secondary);
    font-size: 17px;
    transition: all 150ms;
    text-decoration: none;
}

.header-icon:hover {
    background: var(--te-content-bg);
    color: var(--te-text-dark);
}

.app-header-user {
    display: flex;
    align-items: center;
}

.app-header-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--te-brand-bg);
    color: var(--te-brand-dark);
    border: 2px solid var(--te-brand);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

/* ============================================================
   APP BODY (sidebar + content)
   ============================================================ */
.app-body {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* ============================================================
   LEFT SIDEBAR — Light
   ============================================================ */
.sidebar {
    width: var(--te-sidebar-width);
    min-width: var(--te-sidebar-width);
    background: var(--te-white);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    transition: margin-left 250ms ease;
    border-right: 1px solid var(--te-card-border);
    z-index: 100;
}

/* Scrollbar */
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.08); border-radius: 4px; }
.sidebar::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.14); }

/* Router / WiFi context block */
.sidebar-context {
    background: var(--te-content-bg);
    border: 1px solid var(--te-card-border);
    border-radius: 8px;
    padding: 10px 12px;
    margin: 14px 14px 8px;
    font-size: 12px;
}

.sidebar-context-row {
    display: flex;
    gap: 6px;
    line-height: 1.7;
}

.sidebar-context-label {
    color: var(--te-text-muted);
    font-weight: 500;
}

.sidebar-context-value {
    color: var(--te-text-dark);
    font-weight: 500;
}

/* Sidebar nav */
.sidebar-nav {
    flex: 1;
    padding: 4px 10px;
    overflow-y: auto;
}

/* Section containers */
.sidebar-section {
    display: none;
}

.sidebar-section.visible {
    display: block;
}

/* Section group headers */
.sidebar-section-header {
    color: var(--te-text-muted);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    padding: 16px 12px 6px;
}

/* Nav items */
.sidebar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 8px;
    color: var(--te-text-secondary);
    font-size: 13.5px;
    font-weight: 450;
    text-decoration: none;
    transition: all 150ms;
    margin-bottom: 2px;
}

.sidebar-item i {
    font-size: 15px;
    width: 20px;
    text-align: center;
    color: var(--te-text-muted);
    transition: color 150ms;
}

.sidebar-item:hover {
    background: var(--te-content-bg);
    color: var(--te-text-dark);
    text-decoration: none;
}

.sidebar-item:hover i {
    color: var(--te-text-secondary);
}

.sidebar-item.active {
    background: linear-gradient(135deg, var(--te-brand) 0%, var(--te-brand-dark) 100%);
    color: var(--te-ink);
    box-shadow: 0 2px 8px rgba(141,198,63,0.30);
}

.sidebar-item.active i {
    color: var(--te-ink);
}

/* Collapsible group toggle */
.sidebar-group-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 12px;
    border-radius: 8px;
    color: var(--te-text-secondary);
    font-size: 13.5px;
    font-weight: 500;
    cursor: pointer;
    margin-top: 4px;
    transition: all 150ms;
}

.sidebar-group-toggle:hover {
    background: var(--te-content-bg);
    color: var(--te-text-dark);
}

.sidebar-group-icon {
    font-size: 15px;
    width: 20px;
    text-align: center;
    color: var(--te-text-muted);
    margin-right: 10px;
}

.sidebar-group-toggle .chevron {
    font-size: 11px;
    transition: transform 200ms;
    color: var(--te-text-muted);
}

.sidebar-group-toggle.collapsed .chevron {
    transform: rotate(-90deg);
}

/* Collapsible group children */
.sidebar-group-children {
    overflow: hidden;
    transition: max-height 200ms ease;
    padding-left: 16px;
    border-left: 2px solid var(--te-card-border);
    margin-left: 22px;
    margin-top: 2px;
    margin-bottom: 4px;
}

.sidebar-group-children.collapsed {
    max-height: 0 !important;
}

.sidebar-group-children .sidebar-item {
    padding: 7px 12px;
    font-size: 13px;
}

/* Sidebar bottom */
.sidebar-bottom {
    border-top: 1px solid var(--te-card-border);
    padding: 10px 14px;
    margin-top: auto;
}

.sidebar-logout-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 8px;
    color: var(--te-text-muted);
    font-size: 13.5px;
    text-decoration: none;
    transition: all 150ms;
}

.sidebar-logout-link i {
    font-size: 15px;
}

.sidebar-logout-link:hover {
    background: rgba(239,68,68,0.06);
    color: #ef4444;
    text-decoration: none;
}

/* Sidebar collapsed state */
.sidebar-collapsed .sidebar {
    margin-left: calc(var(--te-sidebar-width) * -1);
}

/* ============================================================
   CONTENT AREA
   ============================================================ */
.content-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow-y: auto;
    background: var(--te-content-bg);
}

.content-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 28px 0;
}

.topbar-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--te-text-dark);
    letter-spacing: -0.3px;
    margin: 0;
}

.topbar-subtitle {
    font-size: 13px;
    color: var(--te-text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #22C55E;
    display: inline-block;
    box-shadow: 0 0 0 2px rgba(34,197,94,0.2);
}

.btn-refresh {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 16px;
    background: var(--te-white);
    border: 1px solid var(--te-card-border);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--te-text-secondary);
    cursor: pointer;
    font-family: 'Outfit', sans-serif;
    transition: all 150ms;
}

.btn-refresh:hover {
    background: var(--te-content-bg);
    border-color: #D1D5DB;
    color: var(--te-text-dark);
}

.content-main {
    padding: 20px 28px 28px;
    flex: 1;
}

/* ===== Content Cards ===== */
.card,
.content-card {
    background: var(--te-white);
    border: 1px solid var(--te-card-border);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(47,43,61,0.04);
}

/* ===== Stat Cards ===== */
.stat-card {
    background: var(--te-white);
    border: 1px solid var(--te-card-border);
    border-radius: 12px;
    padding: 18px 20px;
    position: relative;
    box-shadow: 0 1px 3px rgba(47,43,61,0.04);
}

.stat-card-dark {
    background: linear-gradient(135deg, #1a1e2d 0%, #0B1120 100%);
    border-radius: 12px;
    padding: 18px 20px;
    color: var(--te-white);
    position: relative;
    box-shadow: 0 4px 12px rgba(11,17,32,0.3);
}

.stat-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 10px;
}

.stat-card-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--te-text-secondary);
}

.stat-card-dark .stat-card-title {
    color: rgba(255,255,255,0.5);
}

.stat-card-value {
    font-size: 26px;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: var(--te-text-dark);
    margin: 4px 0 2px;
}

.stat-card-dark .stat-card-value {
    color: var(--te-white);
}

.stat-card-sub {
    font-size: 12px;
    color: var(--te-text-muted);
}

.stat-card-dark .stat-card-sub {
    color: rgba(255,255,255,0.4);
}

.icon-badge {
    border-radius: 8px;
    padding: 6px 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.icon-badge-cyan { background: var(--te-accent-bg); }
.icon-badge-green { background: var(--te-brand-bg); }
.icon-badge-blue { background: rgba(59,130,246,0.10); }

/* Progress bar */
.stat-progress {
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    margin-top: 14px;
    overflow: hidden;
}

.stat-progress-fill {
    height: 100%;
    background: var(--te-brand);
    border-radius: 2px;
    transition: width 500ms ease;
}

/* Delta indicator */
.stat-delta {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 12px;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 6px;
}

.stat-delta-up {
    color: var(--te-brand-dark);
    background: var(--te-brand-bg);
}

/* Reachability pill */
.reachable-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    font-weight: 500;
    color: var(--te-brand-dark);
    background: var(--te-brand-bg);
    padding: 3px 10px;
    border-radius: 20px;
    margin-top: 6px;
}

.reachable-pill .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #22C55E;
}

/* ===== Quick Links ===== */
.quick-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--te-content-bg);
    border: 1px solid var(--te-card-border);
    border-radius: 8px;
    font-size: 13px;
    color: var(--te-text-secondary);
    text-decoration: none;
    transition: all 150ms;
    font-family: 'Outfit', sans-serif;
}

.quick-link:hover {
    background: #F0F0F2;
    color: var(--te-text-dark);
    text-decoration: none;
}

.quick-link svg, .quick-link i {
    flex-shrink: 0;
    color: var(--te-text-muted);
}

/* ===== Chart Cards ===== */
.chart-card {
    background: var(--te-white);
    border: 1px solid var(--te-card-border);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(47,43,61,0.04);
}

.chart-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.chart-card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--te-text-dark);
}

.chart-legend {
    display: flex;
    gap: 16px;
}

.chart-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--te-text-secondary);
}

.chart-legend-line {
    width: 16px;
    height: 2.5px;
    border-radius: 2px;
}

/* ===== Grids ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 16px;
}

/* ===== DataTables override ===== */
.dataTables_wrapper .dataTables_filter input {
    border: 1px solid #dee2e6;
    border-radius: 6px;
    padding: 5px 10px;
    font-family: 'Outfit', sans-serif;
}

/* ===== Tables ===== */
.table {
    font-size: 13.5px;
}

.table thead th {
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--te-text-muted);
    border-bottom-width: 1px;
}

/* ===== Print ===== */
@media print {
    .app-header, .sidebar, .content-topbar, .no-print {
        display: none !important;
    }
    .content-area {
        margin-left: 0 !important;
    }
    .content-main {
        padding: 0 !important;
    }
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
    .app-header-logo-full {
        display: none;
    }
    .app-header-icon {
        display: block;
    }
}

@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .charts-grid {
        grid-template-columns: 1fr;
    }
    .top-nav {
        overflow-x: visible;
        flex-wrap: nowrap;
    }
    .top-nav::-webkit-scrollbar { display: none; }
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: var(--te-header-height);
        left: 0;
        bottom: 0;
        z-index: 150;
        margin-left: calc(var(--te-sidebar-width) * -1);
        transition: margin-left 250ms ease;
        box-shadow: none;
    }

    .sidebar-visible .sidebar {
        margin-left: 0;
        box-shadow: 4px 0 20px rgba(0,0,0,0.08);
    }

    /* Overlay backdrop */
    .sidebar-visible::after {
        content: '';
        position: fixed;
        top: var(--te-header-height);
        left: var(--te-sidebar-width);
        right: 0;
        bottom: 0;
        background: rgba(0,0,0,0.2);
        z-index: 140;
    }

    .content-area {
        margin-left: 0;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .content-main {
        padding: 16px 14px;
    }

    .top-nav {
        display: none;
    }

    .app-header-logo-full {
        display: none;
    }

    .app-header-icon {
        display: block;
    }
}