:root {
    --bg: #f0f2f5;
    --bg-card: #ffffff;
    --bg-panel: #f7f8fa;
    --border: #dce0e5;
    --text: #1a1a1a;
    --text-muted: #6b7280;
    --green: #1B5E20;
    --green-mid: #2E7D32;
    --green-light: #4CAF50;
    --green-soft: #e8f5e9;
    --green-hover: #145218;
    --danger: #c62828;
    --warning: #f9a825;
    --available: #66BB6A;
    --reserved: #FFA726;
    --sold: #EF5350;
    --shadow: 0 2px 12px rgba(27, 94, 32, 0.08);
    --radius: 10px;
    --sidebar-w: 320px;
    --toolbar-h: 56px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    height: 100%;
    font-family: 'Noto Sans Lao', sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.5;
}

a { color: var(--green); text-decoration: none; }
a:hover { color: var(--green-hover); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s;
    white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
    background: var(--green);
    color: #fff;
}
.btn-primary:hover { background: var(--green-hover); }
.btn-secondary {
    background: #e8eaed;
    color: var(--text);
}
.btn-secondary:hover { background: #dce0e5; }
.btn-danger {
    background: var(--danger);
    color: #fff;
}
.btn-danger:hover { background: #b71c1c; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-block { width: 100%; justify-content: center; }
.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    justify-content: center;
    border-radius: 8px;
}
.btn-ghost {
    background: transparent;
    color: var(--green);
}
.btn-ghost:hover { background: var(--green-soft); }

/* Forms */
.form-group { margin-bottom: 14px; }
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
}
.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    background: #fff;
    color: var(--text);
    outline: none;
    transition: border-color 0.15s;
}
.form-control:focus { border-color: var(--green-mid); box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.15); }
textarea.form-control { resize: vertical; min-height: 80px; }
input[type="color"].form-control {
    height: 42px;
    padding: 4px;
    cursor: pointer;
}

/* ===== INDEX PAGE ===== */
.app-header {
    background: var(--green);
    color: #fff;
    padding: 0 28px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.app-header h1 {
    font-size: 20px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}
.app-header h1 i { font-size: 22px; }

.page-wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 28px 20px 60px;
}

.page-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}
.page-toolbar h2 {
    font-size: 22px;
    color: var(--green);
    display: flex;
    align-items: center;
    gap: 10px;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    transition: box-shadow 0.2s, transform 0.15s;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.project-card:hover {
    box-shadow: 0 6px 20px rgba(27, 94, 32, 0.14);
    transform: translateY(-2px);
}
.project-card h3 {
    font-size: 17px;
    color: var(--green);
    display: flex;
    align-items: center;
    gap: 8px;
}
.project-card .meta {
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.project-card .meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}
.project-card .stats {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.stat-chip {
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
    color: #fff;
}
.stat-chip.available { background: var(--available); }
.stat-chip.reserved { background: var(--reserved); }
.stat-chip.sold { background: var(--sold); }
.stat-chip.total { background: var(--green); }
.project-card .actions {
    display: flex;
    gap: 8px;
    margin-top: auto;
    padding-top: 8px;
    border-top: 1px solid var(--border);
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 2px dashed var(--border);
}
.empty-state i { font-size: 48px; color: var(--green-light); margin-bottom: 16px; }
.empty-state h3 { color: var(--green); margin-bottom: 8px; }

/* ===== EDITOR LAYOUT ===== */
.editor-layout {
    display: grid;
    grid-template-columns: var(--sidebar-w) 1fr;
    grid-template-rows: var(--toolbar-h) 1fr;
    height: 100vh;
    overflow: hidden;
}

.editor-toolbar {
    grid-column: 1 / -1;
    background: var(--green);
    color: #fff;
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 8px;
    z-index: 1000;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
}
.editor-toolbar .toolbar-btn {
    flex-shrink: 0;
}
.editor-toolbar .brand {
    font-weight: 700;
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-right: 12px;
    white-space: nowrap;
}
.editor-toolbar .project-name {
    font-size: 14px;
    opacity: 0.9;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.toolbar-sep {
    width: 1px;
    height: 28px;
    background: rgba(255,255,255,0.3);
    margin: 0 6px;
}
.toolbar-btn {
    background: rgba(255,255,255,0.15);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 8px 12px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background 0.15s;
}
.toolbar-btn:hover, .toolbar-btn.active {
    background: rgba(255,255,255,0.3);
}
.toolbar-btn.active {
    background: #fff;
    color: var(--green);
}
.toolbar-spacer { flex: 1; }

.sidebar {
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sidebar-section {
    padding: 16px;
    border-bottom: 1px solid var(--border);
}
.sidebar-section h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--green);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}
.summary-item {
    background: var(--bg-panel);
    border-radius: 8px;
    padding: 10px;
    text-align: center;
}
.summary-item .val {
    font-size: 18px;
    font-weight: 700;
    color: var(--green);
}
.summary-item .lbl {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}
.summary-item.available .val { color: var(--available); }
.summary-item.reserved .val { color: var(--reserved); }
.summary-item.sold .val { color: var(--sold); }

.style-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.tool-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}
.tool-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px 8px;
    background: var(--bg-panel);
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    color: var(--text);
    transition: all 0.15s;
}
.tool-btn i { font-size: 20px; color: var(--green); }
.tool-btn:hover { border-color: var(--green-light); background: var(--green-soft); }
.tool-btn.active {
    border-color: var(--green);
    background: var(--green-soft);
    color: var(--green);
}

.plot-list {
    flex: 1;
    overflow-y: auto;
    max-height: 360px;
}
.plot-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.1s;
}
.plot-item:hover { background: var(--green-soft); }
.plot-item.selected { background: var(--green-soft); border-left: 3px solid var(--green); }
.plot-item .num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--green);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 12px;
    flex-shrink: 0;
}
.plot-item .info { flex: 1; min-width: 0; }
.plot-item .info .title { font-weight: 600; font-size: 13px; }
.plot-item .info .sub { font-size: 11px; color: var(--text-muted); }
.status-badge {
    font-size: 11px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 12px;
    color: #fff;
}
.status-badge.available { background: var(--available); }
.status-badge.reserved { background: var(--reserved); }
.status-badge.sold { background: var(--sold); }

.map-area {
    position: relative;
    overflow: hidden;
}
#map {
    width: 100%;
    height: 100%;
    background: #e8e8e8;
}

.map-hint {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(27, 94, 32, 0.92);
    color: #fff;
    padding: 10px 20px;
    border-radius: 24px;
    font-size: 13px;
    font-weight: 600;
    z-index: 500;
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    display: none;
}
.map-hint.show { display: block; }

.btn-finish-draw {
    position: absolute;
    bottom: 68px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 600;
    border: none;
    background: #1B5E20;
    color: #fff;
    font-family: 'Noto Sans Lao', sans-serif;
    font-size: 14px;
    font-weight: 700;
    padding: 10px 22px;
    border-radius: 10px;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(0,0,0,0.28);
    display: none;
    align-items: center;
    gap: 8px;
}
.btn-finish-draw:hover { background: #2E7D32; }
.btn-finish-draw.show { display: inline-flex; }

/* Leaflet overrides */
.leaflet-container { font-family: 'Noto Sans Lao', sans-serif; }
.plot-label {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    pointer-events: none;
}
.plot-label-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    line-height: 1.15;
    min-width: 0;
    padding: 6px 10px;
    background: rgba(255, 255, 255, 0.88);
    border: 1.5px solid #1B5E20;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.22);
    font-family: 'Noto Sans Lao', sans-serif;
}
.plot-label-box .plot-num {
    font-size: 14px;
    font-weight: 800;
    color: #1B5E20;
    letter-spacing: 0.01em;
}
.plot-label-box .plot-status-tag {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 0.02em;
    text-shadow: none;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.plot-label-box .plot-status-tag.available { background: #2E7D32; }
.plot-label-box .plot-status-tag.reserved { background: #EF6C00; }
.plot-label-box .plot-status-tag.sold { background: #C62828; }
.plot-label-box .plot-area {
    font-size: 13px;
    font-weight: 700;
    color: #222;
}
.plot-x-mark {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    pointer-events: none;
}
.plot-x-inner {
    font-size: 48px;
    color: #c62828;
    font-weight: 900;
    opacity: 0.55;
    line-height: 1;
    text-align: center;
    text-shadow: 0 1px 3px rgba(255,255,255,0.8);
}
.edge-label {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    pointer-events: none;
}
.edge-label-chip {
    background: rgba(27, 94, 32, 0.92);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 8px;
    white-space: nowrap;
    box-shadow: 0 1px 4px rgba(0,0,0,0.25);
    font-family: 'Noto Sans Lao', sans-serif;
}
.edge-label-chip.manual {
    background: rgba(198, 40, 40, 0.92);
}

.edge-length-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 220px;
    overflow-y: auto;
    margin-bottom: 8px;
}
.edge-row {
    display: grid;
    grid-template-columns: 52px 1fr auto;
    gap: 6px;
    align-items: center;
    background: var(--bg-panel);
    padding: 8px;
    border-radius: 8px;
    border: 1px solid var(--border);
}
.edge-row .edge-idx {
    font-size: 12px;
    font-weight: 700;
    color: var(--green);
}
.edge-row .edge-gps {
    font-size: 10px;
    color: var(--text-muted);
    grid-column: 1 / -1;
}
.edge-row input {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
}
.edge-row input:focus {
    outline: none;
    border-color: var(--green-mid);
}
.edge-row .unit {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
}
.edge-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.edge-actions .btn { flex: 1; justify-content: center; }

.label-scale-row {
    display: flex;
    align-items: center;
    gap: 8px;
}
.label-scale-row input[type="range"] {
    flex: 1;
    accent-color: var(--green);
    cursor: pointer;
}
.label-scale-row .scale-val {
    min-width: 44px;
    font-size: 13px;
    font-weight: 700;
    color: var(--green);
    text-align: right;
}
.plot-label.leaflet-marker-draggable,
.plot-label.leaflet-drag-target {
    cursor: grab !important;
}
.plot-label.leaflet-marker-draggable:active {
    cursor: grabbing !important;
}
.plot-label-box {
    cursor: grab;
}
.plot-label-box:active {
    cursor: grabbing;
}

.toolbar-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.layer-order-row {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}
.layer-order-row .btn {
    flex: 1;
    justify-content: center;
}

.map-text-label {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    pointer-events: auto !important;
}
.map-text-inner {
    white-space: pre-wrap;
    text-align: center;
    padding: 6px 10px;
    border-radius: 6px;
    background: rgba(255,255,255,0.85);
    line-height: 1.3;
    cursor: grab;
    max-width: 280px;
    word-break: break-word;
    pointer-events: auto !important;
    user-select: none;
    border: 1px dashed rgba(27,94,32,0.35);
}
.map-text-inner:active { cursor: grabbing; }

.share-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--border);
}

.capture-overlay {
    position: absolute;
    inset: 0;
    background: rgba(27, 94, 32, 0.55);
    color: #fff;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    font-weight: 700;
    font-size: 16px;
    gap: 10px;
    pointer-events: all;
}
.capture-overlay.show { display: flex; }

/* Status select colors */
.select-status.available { border-color: var(--available); }
.select-status.reserved { border-color: var(--reserved); }
.select-status.sold { border-color: var(--sold); }

/* SweetAlert theming */
.swal2-popup { font-family: 'Noto Sans Lao', sans-serif !important; border-radius: 12px !important; }
.swal2-confirm {
    background: var(--green) !important;
    color: #fff !important;
    font-family: inherit !important;
    border-radius: 8px !important;
}
.swal2-cancel {
    background: #9e9e9e !important;
    color: #fff !important;
    font-family: inherit !important;
    border-radius: 8px !important;
}
.swal2-icon.swal2-success { border-color: var(--green) !important; color: var(--green) !important; }
.swal2-icon.swal2-success [class^=swal2-success-line] { background-color: var(--green) !important; }
.swal2-icon.swal2-success .swal2-success-ring { border-color: rgba(27,94,32,0.3) !important; }

/* Modal overlay for simple forms */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}
.modal-overlay.show { display: flex; }
.modal-box {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    width: 90%;
    max-width: 440px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}
.modal-box h3 {
    color: var(--green);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 18px;
}

@media (max-width: 900px) {
    .editor-layout {
        grid-template-columns: 1fr;
        grid-template-rows: var(--toolbar-h) auto 1fr;
    }
    .sidebar {
        max-height: 40vh;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }
    .toolbar-btn span { display: none; }
}