:root {
    --adm-bg: #F1F5F9;
    --adm-surface: #FFFFFF;
    --adm-sidebar: #0F172A;
    --adm-primary: #7C1D24;
    --adm-primary-dark: #581117;
    --adm-text: #0F172A;
    --adm-muted: #475569;
    --adm-border: #E2E8F0;
    --adm-radius: 12px;
}

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

body.admin-body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans Tamil", sans-serif;
    background: var(--adm-bg);
    color: var(--adm-text);
    line-height: 1.5;
}

a {
    color: inherit;
    text-decoration: none;
}

.hidden {
    display: none !important;
}

/* Login Screen */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, #0F172A 0%, #4C0D12 100%);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: #fff;
    border-radius: 16px;
    padding: 32px 28px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.35);
}

.login-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 22px;
}

.login-brand img {
    width: 46px;
    height: 46px;
}

.login-brand h1 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--adm-primary);
}

.login-brand p {
    margin: 0;
    font-size: 0.82rem;
    color: var(--adm-muted);
}

/* Shell */
.admin-shell {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 255px;
    background: var(--adm-sidebar);
    color: #CBD5E1;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    height: 100vh;
    z-index: 50;
}

.sidebar-brand {
    padding: 18px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 11px;
}

.sidebar-brand img {
    width: 38px;
    height: 38px;
}

.sidebar-brand strong {
    display: block;
    color: #fff;
    font-size: 0.98rem;
}

.sidebar-brand small {
    color: #D4A438;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.sidebar-nav {
    padding: 14px 12px;
    display: grid;
    gap: 4px;
    flex: 1;
    align-content: start;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 13px;
    border-radius: 9px;
    font-size: 0.92rem;
    font-weight: 600;
    color: #CBD5E1;
    transition: background-color 0.15s ease, color 0.15s ease;
}

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

.sidebar-link.active {
    background: var(--adm-primary);
    color: #fff;
}

.sidebar-footer {
    padding: 14px 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: grid;
    gap: 8px;
}

.admin-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.admin-topbar {
    background: #fff;
    border-bottom: 1px solid var(--adm-border);
    padding: 12px 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    position: sticky;
    top: 0;
    z-index: 30;
}

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

.topbar-title {
    margin: 0;
    font-size: 1.15rem;
}

.sidebar-toggle-btn {
    display: none;
    background: #F8FAFC;
    border: 1px solid var(--adm-border);
    border-radius: 8px;
    padding: 7px 10px;
    cursor: pointer;
    font-weight: 700;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.88rem;
}

.admin-content {
    padding: 22px;
    max-width: 1440px;
    width: 100%;
    margin: 0 auto;
}

/* Alerts / Flash */
.alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 18px;
    font-weight: 600;
    font-size: 0.92rem;
    border: 1px solid transparent;
}

.alert-success {
    background: #DCFCE7;
    color: #14532D;
    border-color: #86EFAC;
}

.alert-error {
    background: #FEE2E2;
    color: #7F1D1D;
    border-color: #FCA5A5;
}

/* Buttons & Controls */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 16px;
    border-radius: 9px;
    font-weight: 600;
    font-size: 0.88rem;
    font-family: inherit;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background-color 0.15s ease, opacity 0.15s ease;
    white-space: nowrap;
}

.btn-sm {
    padding: 6px 11px;
    font-size: 0.8rem;
    border-radius: 7px;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background: var(--adm-primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--adm-primary-dark);
}

.btn-secondary {
    background: #fff;
    color: var(--adm-text);
    border-color: #CBD5E1;
}

.btn-secondary:hover {
    background: #F8FAFC;
}

.btn-secondary.active {
    background: #0F172A;
    color: #fff;
    border-color: #0F172A;
}

.btn-danger {
    background: #DC2626;
    color: #fff;
}

.btn-danger:hover {
    background: #B91C1C;
}

.btn-success {
    background: #16A34A;
    color: #fff;
}

.form-group {
    margin-bottom: 14px;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 700;
    margin-bottom: 5px;
    color: #334155;
}

.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid #CBD5E1;
    border-radius: 8px;
    font-size: 0.9rem;
    font-family: inherit;
    background: #fff;
    color: var(--adm-text);
}

.form-control:focus {
    outline: none;
    border-color: var(--adm-primary);
    box-shadow: 0 0 0 3px rgba(124, 29, 36, 0.12);
}

.form-hint {
    font-size: 0.76rem;
    color: var(--adm-muted);
    margin-top: 4px;
}

/* Cards & Grids */
.card {
    background: var(--adm-surface);
    border: 1px solid var(--adm-border);
    border-radius: var(--adm-radius);
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.card-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

.card-title {
    margin: 0;
    font-size: 1.05rem;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.kpi-card {
    background: #fff;
    border: 1px solid var(--adm-border);
    border-radius: var(--adm-radius);
    padding: 18px;
}

.kpi-card small {
    display: block;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--adm-muted);
    margin-bottom: 6px;
}

.kpi-card strong {
    font-size: 1.85rem;
    line-height: 1.1;
}

.status-summary-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.status-summary-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-radius: 9px;
    border: 1px solid var(--adm-border);
    background: #F8FAFC;
    font-size: 0.85rem;
}

.status-dot-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.status-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    white-space: nowrap;
}

.form-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.form-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

/* Tables */
.table-wrap {
    width: 100%;
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.admin-table th {
    background: #F8FAFC;
    text-align: left;
    padding: 11px 12px;
    border-bottom: 1px solid var(--adm-border);
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--adm-muted);
}

.admin-table td {
    padding: 11px 12px;
    border-bottom: 1px solid #F1F5F9;
    vertical-align: middle;
}

.admin-table tr:hover td {
    background: #F8FAFC;
}

.thumb-mini {
    width: 72px;
    height: 48px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--adm-border);
}

/* Visual Plot Mapper Studio */
.mapper-layout {
    display: grid;
    grid-template-columns: 1.45fr 0.95fr;
    gap: 20px;
    align-items: start;
}

.mapper-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding: 10px 12px;
    background: #F8FAFC;
    border: 1px solid var(--adm-border);
    border-radius: 10px;
}

.mapper-toolbar-group {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}

.mapper-viewport {
    width: 100%;
    max-height: 75vh;
    overflow: auto;
    border: 1px solid var(--adm-border);
    border-radius: 10px;
    background: #E2E8F0;
}

.mapper-stage {
    position: relative;
    margin: 0 auto;
    user-select: none;
}

.mapper-stage.mode-rect,
.mapper-stage.mode-poly {
    cursor: crosshair;
}

.mapper-stage img {
    width: 100%;
    height: 100%;
    display: block;
    pointer-events: none;
}

.mapper-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.adm-plot-shape {
    fill: var(--plot-color, #16A34A);
    fill-opacity: 0.38;
    stroke: var(--plot-color, #16A34A);
    stroke-width: 2;
    cursor: pointer;
}

.adm-plot-shape:hover {
    fill-opacity: 0.62;
    stroke-width: 3;
}

.adm-plot-shape.selected {
    fill-opacity: 0.68;
    stroke: #0F172A;
    stroke-width: 3.5;
}

.adm-plot-label {
    font-size: 11px;
    font-weight: 800;
    fill: #0F172A;
    paint-order: stroke;
    stroke: #fff;
    stroke-width: 3px;
    pointer-events: none;
}

/* 9 Status Picker Buttons */
.status-picker-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
}

.status-pick-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 8px;
    border-radius: 8px;
    border: 2px solid #E2E8F0;
    background: #fff;
    font-size: 0.76rem;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    text-align: left;
    color: var(--adm-text);
}

.status-pick-btn.active {
    border-color: #0F172A;
    background: #F8FAFC;
    box-shadow: 0 0 0 2px rgba(15, 23, 42, 0.14);
}

.status-pick-swatch {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* Mobile Responsive Admin */
@media (max-width: 1120px) {
    .mapper-layout {
        grid-template-columns: 1fr;
    }
    .kpi-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 820px) {
    .sidebar-toggle-btn {
        display: inline-flex;
    }
    .admin-sidebar {
        position: fixed;
        left: -265px;
        top: 0;
        bottom: 0;
        transition: left 0.2s ease;
    }
    .admin-sidebar.open {
        left: 0;
    }
    .form-grid-2,
    .form-grid-3,
    .status-summary-grid,
    .status-picker-grid {
        grid-template-columns: 1fr;
    }
}