/* ===== CSS Variables ===== */
:root {
    --sidebar-bg: #0D2137;
    --sidebar-stripe: #2ECC40;
    --page-bg: #F0F0F0;
    --card-bg: #FFFFFF;
    --card-shadow: rgba(0,0,0,0.08);
    --title-color: #0D2137;
    --active-filter: #E8771E;
    --inactive-text: #555555;
    --chart-primary: #2E6DA4;
    --chart-highlight: #1A73E8;
    --table-header-bg: #1B4F72;
    --table-header-text: #FFFFFF;
    --kpi-number: #0D2137;
    --green-good: #1D8348;
    --red-bad: #E74C3C;
    --target-green: #2ECC40;
    --pie-electrical: #2E6DA4;
    --pie-mechanical: #1B4F72;
    --pie-utilities: #2ECC40;
    --budget-ok: #2ECC40;
    --budget-warn: #F5A623;
    --budget-over: #E74C3C;
    --rca-done: #2ECC40;
    --rca-plan: #2E6DA4;
    --sidebar-width: 160px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
    min-height: 100%;
}
body {
    min-height: 100%;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--page-bg);
    color: #333;
    font-size: 14px;
    overflow-x: hidden;
}
.hidden { display: none !important; }

/* ===== Sidebar ===== */
.sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    z-index: 100;
    display: flex;
    border-radius: 0 12px 12px 0;
    overflow: hidden;
}
.sidebar-green-stripe {
    width: 6px;
    background: var(--sidebar-stripe);
    flex-shrink: 0;
}
.sidebar-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 8px;
    gap: 16px;
}
/* Sidebar Logo */
.sidebar-logo {
    width: 130px; height: 130px;
    display: flex;
    align-items: center; justify-content: center;
}
.logo-img {
    width: 130px; height: 130px;
    object-fit: contain;
}
/* Sidebar Navigation */
.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 100%;
    padding: 0 6px;
    margin-top: 12px;
}
.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    transition: background 0.2s, color 0.2s;
}
.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255,255,255,0.15);
    color: #fff;
}
.sidebar-nav a i {
    width: 18px;
    text-align: center;
    font-size: 13px;
}
.sidebar-refresh-btn {
    width: 40px; height: 40px;
    background: rgba(255,255,255,0.15);
    border: none; border-radius: 50%;
    color: #fff; font-size: 16px;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s, transform 0.3s;
}
.sidebar-refresh-btn:hover { background: rgba(255,255,255,0.25); }
.sidebar-refresh-btn.spinning i { animation: spin 0.8s linear; }

/* ===== Main Content ===== */
.main-content {
    margin-left: var(--sidebar-width);
    padding: 16px 24px 24px;
    min-height: 100vh;
}

/* ===== Header ===== */
.dashboard-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--page-bg);
    padding: 12px 0 12px;
    margin: -16px 0 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.header-title-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
}
.dashboard-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--title-color);
}
.data-updated {
    font-size: 12px;
    color: var(--inactive-text);
}
.header-filters {
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
}
.filter-group {
    display: flex;
    align-items: center;
    gap: 8px;
}
.filter-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--title-color);
}
.filter-group select {
    padding: 6px 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 13px;
    background: #fff;
    color: #333;
    cursor: pointer;
    min-width: 140px;
}
.filter-group select:focus,
.filter-group .date-input:focus {
    outline: none;
    border-color: var(--chart-primary);
}
.date-input {
    padding: 6px 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 13px;
    background: #fff;
    color: #333;
    cursor: pointer;
    font-family: inherit;
}

/* Multi-select dropdown */
.multi-select {
    position: relative;
    min-width: 140px;
}
.multi-select-display {
    padding: 6px 28px 6px 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 13px;
    background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23555'/%3E%3C/svg%3E") no-repeat right 10px center;
    color: #333;
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    user-select: none;
}
.multi-select-display:focus {
    outline: none;
    border-color: var(--chart-primary);
}
.multi-select-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    min-width: 200px;
    max-height: 280px;
    overflow-y: auto;
    background: #fff;
    border: 1px solid #ccc;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
    z-index: 150;
    margin-top: 2px;
    padding: 4px 0;
}
.multi-select-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s;
}
.multi-select-item:hover {
    background: #f0f4f8;
}
.multi-select-item input[type="checkbox"] {
    accent-color: var(--chart-primary);
    cursor: pointer;
}

/* ===== Loading ===== */
.loading-overlay {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    color: var(--inactive-text);
}
.loading-spinner {
    width: 40px; height: 40px;
    border: 4px solid #ddd;
    border-top-color: var(--chart-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== KPI Row ===== */
.kpi-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 16px;
}
.kpi-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 18px 20px;
    box-shadow: 0 2px 8px var(--card-shadow);
    text-align: center;
}
.kpi-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--inactive-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}
.kpi-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--kpi-number);
    line-height: 1.2;
}
.kpi-value.green { color: var(--green-good); }
.kpi-value.red { color: var(--red-bad); }
.kpi-sub {
    font-size: 11px;
    color: var(--inactive-text);
    margin-top: 4px;
}
.kpi-sub .budget-arrow {
    font-size: 10px;
    margin-right: 2px;
}

/* ===== Chart Rows ===== */
.chart-row {
    display: grid;
    gap: 16px;
    margin-bottom: 16px;
}
.row-3col { grid-template-columns: 2fr 1fr 1.5fr; }
.row-2col { grid-template-columns: 1fr 1fr; }

.chart-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 16px;
    box-shadow: 0 2px 8px var(--card-shadow);
    display: flex;
    flex-direction: column;
    min-height: 0;
}
.card-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--title-color);
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.chart-wrapper {
    position: relative;
    flex: 1;
    min-height: 240px;
}
.chart-wrapper canvas {
    width: 100% !important;
    height: 100% !important;
}
.chart-wrapper-bar {
    min-height: 240px;
    max-height: 400px;
    overflow-y: auto;
    overflow-x: hidden;
}
.bar-inner {
    position: relative;
    min-height: 240px;
}
.bar-inner canvas {
    width: 100% !important;
    height: 100% !important;
    position: absolute;
    top: 0; left: 0;
}

/* ===== Toggle Buttons ===== */
.toggle-buttons {
    display: flex;
    gap: 4px;
}
.toggle-btn {
    padding: 3px 10px;
    font-size: 11px;
    border: 1px solid #ccc;
    background: #fff;
    color: var(--inactive-text);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
}
.toggle-btn.active {
    background: var(--sidebar-bg);
    color: #fff;
    border-color: var(--sidebar-bg);
}

/* ===== Drill Buttons ===== */
.drill-buttons {
    display: flex;
    gap: 4px;
}
.drill-btn {
    width: 24px; height: 24px;
    border: 1px solid #ccc;
    background: #fff;
    border-radius: 4px;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 11px;
    color: var(--inactive-text);
    transition: all 0.2s;
}
.drill-btn:hover {
    background: var(--chart-primary);
    color: #fff;
    border-color: var(--chart-primary);
}

/* ===== Tables ===== */
.table-wrapper {
    flex: 1;
    overflow: auto;
}
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}
.data-table thead th {
    background: var(--table-header-bg);
    color: var(--table-header-text);
    padding: 8px 10px;
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 1;
}
.data-table tbody td {
    padding: 6px 10px;
    border-bottom: 1px solid #eee;
}
.data-table tbody tr:nth-child(even) { background: #f9f9f9; }
.data-table tbody tr:hover { background: #f0f4f8; }

/* RCA cell highlights */
.cell-done { background: var(--rca-done); color: #fff; font-weight: 700; text-align: center; }
.cell-plan { background: var(--rca-plan); color: #fff; font-weight: 700; text-align: center; }
.cell-number { text-align: center; }

/* SP Cost Status Dots */
.status-dot {
    display: inline-block;
    width: 10px; height: 10px;
    border-radius: 50%;
    margin-right: 4px;
}
.status-dot.green { background: var(--budget-ok); }
.status-dot.amber { background: var(--budget-warn); }
.status-dot.red { background: var(--budget-over); }
.variance-text.green { color: var(--budget-ok); }
.variance-text.amber { color: var(--budget-warn); }
.variance-text.red { color: var(--budget-over); }

/* Total row */
.data-table .total-row td {
    background: var(--table-header-bg);
    color: #fff;
    font-weight: 700;
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 200;
    display: flex;
    transition: opacity 0.3s;
}
.modal-overlay.hidden {
    display: none !important;
    opacity: 0;
}
.modal-container {
    display: flex;
    width: 100%;
    height: 100%;
    background: var(--page-bg);
}
.modal-sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    display: flex;
    border-radius: 0 12px 12px 0;
    overflow: hidden;
    flex-shrink: 0;
}
.modal-sidebar .sidebar-content {
    padding-top: 24px;
}
.modal-back-btn {
    width: 40px; height: 40px;
    background: rgba(255,255,255,0.15);
    border: none; border-radius: 50%;
    color: #fff; font-size: 16px;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s;
}
.modal-back-btn:hover { background: rgba(255,255,255,0.25); }
.modal-body {
    flex: 1;
    padding: 24px 32px;
    overflow: auto;
}
.modal-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--title-color);
    margin-bottom: 16px;
}
.modal-table-wrapper {
    overflow: auto;
    max-height: calc(100vh - 120px);
}

/* ===== Context Menu ===== */
.context-menu {
    position: fixed;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    z-index: 300;
    min-width: 220px;
    padding: 4px;
}
.context-menu-item {
    padding: 10px 14px;
    font-size: 13px;
    color: #333;
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background 0.15s;
}
.context-menu-item:hover {
    background: #f0f4f8;
}
.context-menu-item i {
    color: var(--chart-primary);
}

/* ===== Responsive ===== */
@media (max-width: 1400px) {
    .row-3col { grid-template-columns: 1fr 1fr; }
    .row-3col > :last-child { grid-column: span 2; }
}
@media (max-width: 900px) {
    .kpi-row { grid-template-columns: repeat(2, 1fr); }
    .row-3col, .row-2col { grid-template-columns: 1fr; }
    .row-3col > :last-child { grid-column: span 1; }
    .header-filters { gap: 10px; }
}