/* ===================================
   GIS Volume Calculator - Estilos
   Diseño de 3 Paneles (Agisoft-style)
   =================================== */

/* === Variables CSS === */
:root {
    --primary-color: #0078d4;
    --primary-dark: #005a9e;
    --primary-light: #1e90ff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    
    --bg-dark: #1e1e1e;
    --bg-darker: #181818;
    --bg-panel: #252526;
    --bg-hover: #2d2d30;
    --bg-active: #37373d;
    --bg-input: #3c3c3c;
    
    --text-primary: #cccccc;
    --text-secondary: #9d9d9d;
    --text-muted: #6d6d6d;
    --text-bright: #ffffff;
    
    --border-color: #3c3c3c;
    --border-light: #454545;
    --border-radius: 4px;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    
    --transition-fast: 0.1s ease;
    --transition-normal: 0.2s ease;
    
    --font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Consolas', 'Fira Code', monospace;
    
    --sidebar-left-width: 260px;
    --sidebar-right-width: 300px;
    --toolbar-height: 40px;
}

/* === Reset y Base === */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
}

/* Solo bloquear overflow en la app de trabajo, no en dashboard/login */
body.app-body {
    overflow: hidden;
}

body {
    font-family: var(--font-family);
    background: var(--bg-dark);
    color: var(--text-primary);
    font-size: 13px;
    line-height: 1.4;
}

/* === Layout de 3 Paneles === */
.app-layout-three-panel {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* === Sidebar Izquierdo (Workspace) === */
.sidebar-left {
    width: var(--sidebar-left-width);
    background: var(--bg-panel);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-left .sidebar-header {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-darker);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.sidebar-logo:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

.sidebar-logo-img {
    height: 28px;
    width: auto;
}

.brand-logo-img {
    height: 32px;
    width: auto;
}

/* === Proyecto Actual Panel === */
.current-project-section,
.project-files-section {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
}

.section-header h4 {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 10px 0;
}

.project-info-panel {
    padding: 8px 0;
}

.project-name-display {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 4px;
}

.project-date-display {
    font-size: 11px;
    color: var(--text-muted);
}

.project-files-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background: var(--bg-darker);
    border-radius: 6px;
    font-size: 13px;
}

.file-icon {
    font-size: 14px;
}

.file-name {
    flex: 1;
    color: var(--text-primary);
}

.file-status {
    font-size: 12px;
    color: var(--text-muted);
}

.file-status.uploaded {
    color: var(--success-color);
}

.back-section {
    padding: 12px;
    margin-top: auto;
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* === Botones de Subida === */
.toolbar-btn.upload-btn {
    background: rgba(52, 152, 219, 0.2);
    border: 1px solid #3498db;
    color: #3498db;
}

.toolbar-btn.upload-btn:hover {
    background: rgba(52, 152, 219, 0.4);
    color: #fff;
}

/* === Capturas === */
.captures-section {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    flex: 1;
    overflow-y: auto;
}

.captures-section .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.btn-icon-small {
    width: 22px;
    height: 22px;
    border-radius: 4px;
    border: 1px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon-small:hover {
    background: var(--primary-color);
    color: #000;
}

.captures-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.capture-item {
    background: var(--bg-darker);
    border: 1px solid transparent;
    border-radius: 6px;
    padding: 8px 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.capture-item:hover {
    border-color: var(--border-color);
}

.capture-item.active {
    border-color: var(--primary-color);
    background: rgba(0, 255, 136, 0.1);
}

.capture-header {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
}

.capture-icon {
    font-size: 14px;
}

.capture-name {
    flex: 1;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-bright);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.btn-delete-capture {
    width: 18px;
    height: 18px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    border-radius: 3px;
    opacity: 0;
    transition: all 0.2s ease;
}

.capture-item:hover .btn-delete-capture {
    opacity: 1;
}

.btn-delete-capture:hover {
    background: var(--danger-color);
    color: #fff;
}

.capture-files {
    display: flex;
    gap: 10px;
    padding-left: 20px;
}

.capture-file {
    font-size: 11px;
    color: var(--text-muted);
}

.capture-file.uploaded {
    color: var(--success-color);
}

.sidebar-title h2 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 2px;
}

.role-badge {
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 3px;
    background: var(--primary-color);
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.role-badge.admin {
    background: var(--warning-color);
    color: #000;
}

.role-badge.superadmin {
    background: linear-gradient(135deg, #f39c12, #e74c3c);
    color: #fff;
}

.role-badge.user {
    background: var(--bg-medium);
    color: var(--text-light);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

/* Workspace Header */
.workspace-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-darker);
}

.workspace-header h4 {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    font-weight: 500;
}

.btn-icon-add {
    width: 22px;
    height: 22px;
    border: none;
    background: var(--primary-color);
    color: white;
    border-radius: 4px;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

/* === Árbol de Proyectos === */
.project-tree {
    padding: 8px 0;
}

.loading-text, .empty-text {
    padding: 16px;
    text-align: center;
    color: var(--text-muted);
    font-size: 12px;
}

.tree-item {
    display: flex;
    align-items: center;
    padding: 6px 14px;
    cursor: pointer;
    transition: background var(--transition-fast);
    border-left: 2px solid transparent;
}

.tree-item:hover {
    background: var(--bg-hover);
}

.tree-item.active {
    background: var(--bg-active);
    border-left-color: var(--primary-color);
}

.tree-item.expanded > .tree-expand {
    transform: rotate(90deg);
}

.tree-expand {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: var(--text-muted);
    transition: transform var(--transition-fast);
    flex-shrink: 0;
}

.tree-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    margin-right: 8px;
    flex-shrink: 0;
}

.tree-name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 13px;
}

.tree-status {
    display: flex;
    gap: 4px;
    margin-left: 8px;
}

.tree-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
}

.tree-status-dot.uploaded {
    background: var(--success-color);
}

/* Sub-items del árbol */
.tree-children {
    display: none;
    padding-left: 20px;
}

.tree-item.expanded + .tree-children {
    display: block;
}

.tree-child {
    display: flex;
    align-items: center;
    padding: 5px 14px;
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
}

.tree-child:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.tree-child-icon {
    margin-right: 8px;
    font-size: 12px;
}

/* Sección de guardados */
.tree-section {
    border-top: 1px solid var(--border-color);
    margin-top: 8px;
}

.tree-section-header {
    padding: 8px 14px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    background: var(--bg-darker);
}

.saved-polygon-tree {
    padding: 4px 0;
}

.saved-item {
    display: flex;
    align-items: center;
    padding: 5px 14px;
    cursor: pointer;
    font-size: 12px;
}

.saved-item:hover {
    background: var(--bg-hover);
}

.saved-item-icon {
    margin-right: 8px;
}

.saved-item-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.saved-item-btn {
    width: 20px;
    height: 20px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 11px;
    border-radius: 3px;
    opacity: 0;
    transition: all var(--transition-fast);
}

.saved-item:hover .saved-item-btn {
    opacity: 1;
}

.saved-item-btn:hover {
    background: var(--bg-active);
    color: var(--text-primary);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 10px 14px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-darker);
}

.user-info-compact {
    display: flex;
    align-items: center;
    gap: 8px;
}

.avatar-small {
    font-size: 16px;
}

#user-name-display {
    font-size: 12px;
    color: var(--text-secondary);
}

.btn-icon-logout {
    width: 28px;
    height: 28px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    font-size: 14px;
    transition: all var(--transition-fast);
}

.btn-icon-logout:hover {
    background: var(--bg-hover);
    color: var(--danger-color);
}

/* === Panel Central === */
.main-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* Toolbar Superior */
.toolbar-top {
    height: var(--toolbar-height);
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 12px;
    gap: 16px;
}

.toolbar-left {
    flex: 1;
}

.current-project-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-bright);
}

.toolbar-center {
    display: flex;
    gap: 8px;
    align-items: center;
}

.toolbar-hint {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.5);
    margin-right: 8px;
    font-style: italic;
}

.toolbar-btn {
    padding: 5px 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-input);
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all var(--transition-fast);
}

.toolbar-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-light);
}

.toolbar-btn.danger:hover {
    background: rgba(220, 53, 69, 0.2);
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.toolbar-right {
    display: flex;
    align-items: center;
}

.layer-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    background: var(--bg-darker);
    border-radius: 4px;
}

.layer-checkbox {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    font-size: 14px;
}

.layer-checkbox input {
    width: 14px;
    height: 14px;
    accent-color: var(--primary-color);
}

.layer-checkbox input:disabled + span {
    opacity: 0.4;
}

.opacity-slider {
    width: 60px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-input);
    border-radius: 2px;
    cursor: pointer;
}

.opacity-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
}

/* Contenedor del Mapa */
.map-container {
    flex: 1;
    position: relative;
}

#map {
    width: 100%;
    height: 100%;
    background: #1a1a2e;
}

/* === Sidebar Derecho (Polígonos) === */
.sidebar-right {
    width: var(--sidebar-right-width);
    background: var(--bg-panel);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-right .sidebar-header {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-darker);
}

.sidebar-right .sidebar-header h3 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-bright);
}

/* Herramientas de Dibujo */
.draw-tools {
    display: flex;
    gap: 8px;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border-color);
}

.draw-btn {
    flex: 1;
    padding: 10px 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-input);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    transition: all var(--transition-fast);
}

.draw-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.draw-icon {
    font-size: 20px;
}

.draw-btn span:last-child {
    font-size: 11px;
}

/* Sección de Polígonos */
.polygons-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: var(--bg-darker);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.btn-clear {
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    font-size: 12px;
}

.btn-clear:hover {
    background: var(--bg-hover);
    color: var(--danger-color);
}

.btn-close {
    width: 20px;
    height: 20px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 3px;
    font-size: 12px;
}

.btn-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* Lista de Polígonos */
.polygon-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.polygon-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-bottom: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.polygon-item:hover {
    border-color: var(--border-light);
}

.polygon-item.selected {
    border-color: var(--primary-color);
    background: rgba(0, 120, 212, 0.15);
}

.polygon-item.calculated {
    border-left: 3px solid var(--success-color);
}

.polygon-select {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-color);
    flex-shrink: 0;
}

.polygon-icon {
    font-size: 16px;
    flex-shrink: 0;
}

.polygon-info {
    flex: 1;
    min-width: 0;
}

.polygon-name {
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.polygon-area {
    font-size: 11px;
    color: var(--text-muted);
}

.polygon-actions {
    display: flex;
    gap: 2px;
}

.polygon-actions .polygon-btn:not([data-action="save"]) {
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.polygon-item:hover .polygon-actions .polygon-btn {
    opacity: 1;
}

.polygon-btn {
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    font-size: 12px;
}

.polygon-btn:hover {
    background: var(--bg-dark);
    color: var(--text-primary);
}

.polygon-btn[data-action="save"] {
    color: var(--primary-color);
    opacity: 1 !important;
}

.polygon-btn[data-action="save"]:hover {
    background: rgba(0, 120, 212, 0.2);
}

.polygon-btn.delete:hover {
    color: var(--danger-color);
}

.polygon-btn.editing {
    color: #f39c12 !important;
    opacity: 1 !important;
    background: rgba(243, 156, 18, 0.2);
    border-radius: 4px;
    animation: pulse-edit 1s infinite;
}

@keyframes pulse-edit {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Acciones */
.actions-section {
    padding: 12px 14px;
    border-top: 1px solid var(--border-color);
}

/* Resultados */
.results-section {
    border-top: 1px solid var(--border-color);
    background: var(--bg-darker);
}

.results-content {
    padding: 12px 14px;
}

.result-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.result-item:last-of-type {
    border-bottom: none;
}

.result-label {
    color: var(--text-secondary);
    font-size: 12px;
}

.result-value {
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 13px;
}

.result-item.highlight .result-value {
    color: var(--primary-light);
    font-size: 14px;
}

.result-item.highlight-alt {
    background: rgba(230, 126, 34, 0.15);
    border-radius: 6px;
    padding: 8px 12px;
    margin-top: 8px;
}

.result-item.highlight-alt .result-label {
    color: #e67e22;
    font-weight: 600;
}

.result-item.highlight-alt .result-value {
    color: #e67e22;
    font-size: 16px;
    font-weight: 700;
}

.result-item.positive .result-value {
    color: var(--success-color);
}

.result-item.negative .result-value {
    color: var(--danger-color);
}

.result-item.small {
    padding: 6px 0;
}

.result-item.small .result-label,
.result-item.small .result-value {
    font-size: 11px;
}

.result-divider {
    height: 1px;
    background: var(--border-color);
    margin: 8px 0;
}

/* Sección de Informe */
.report-section {
    padding: 12px 14px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-darker);
}

.help-text {
    font-size: 11px;
    color: var(--text-muted);
    text-align: center;
    margin-top: 8px;
}

/* === Botones === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-hover);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: #218838;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-report {
    background: linear-gradient(135deg, var(--info-color), #138496);
    color: white;
}

.btn-report:hover:not(:disabled) {
    background: linear-gradient(135deg, #138496, #0c6977);
}

.btn-kml {
    background: linear-gradient(135deg, #e67e22, #d35400);
    color: white;
    margin-top: 8px;
}

.btn-kml:hover:not(:disabled) {
    background: linear-gradient(135deg, #d35400, #a04000);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
    margin-top: 12px;
}

/* === Modales === */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-panel);
    border-radius: 8px;
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    transform: scale(0.95);
    transition: transform var(--transition-normal);
}

.modal-overlay.show .modal {
    transform: scale(1);
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-bright);
}

.modal-close {
    width: 28px;
    height: 28px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    font-size: 18px;
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.modal-footer .btn {
    width: auto;
}

/* === Formularios === */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 13px;
    transition: border-color var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-control::placeholder {
    color: var(--text-muted);
}

/* === Loading === */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 99999;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    color: var(--text-primary);
    margin-top: 16px;
    font-size: 14px;
}

/* === Toasts === */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px 16px;
    min-width: 280px;
    box-shadow: var(--shadow-md);
    border-left: 3px solid var(--primary-color);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.success { border-left-color: var(--success-color); }
.toast.error { border-left-color: var(--danger-color); }
.toast.warning { border-left-color: var(--warning-color); }

.toast-message {
    font-size: 13px;
}

/* === Leaflet Overrides === */
.leaflet-container {
    background: #0a0a0a !important;
    font-family: var(--font-family);
}

/* Forzar fondo oscuro en todas las capas */
.leaflet-tile-pane,
.leaflet-overlay-pane,
.leaflet-shadow-pane,
.leaflet-marker-pane,
.leaflet-popup-pane {
    background: transparent !important;
}

/* Tiles con fondo transparente */
.leaflet-tile {
    background: transparent !important;
}

.leaflet-control-zoom {
    border: none !important;
    box-shadow: var(--shadow-sm) !important;
}

.leaflet-control-zoom a {
    background: var(--bg-panel) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color) !important;
    width: 30px !important;
    height: 30px !important;
    line-height: 30px !important;
}

.leaflet-control-zoom a:hover {
    background: var(--bg-hover) !important;
}

.leaflet-bar {
    border: none !important;
    box-shadow: var(--shadow-sm) !important;
}

.leaflet-bar a {
    background: var(--bg-panel) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

.leaflet-bar a:hover {
    background: var(--bg-hover) !important;
}

/* Ocultar controles de Leaflet.Draw */
.leaflet-draw { display: none !important; }

/* Vértices de polígonos (tamaño reducido) */
.leaflet-div-icon {
    width: 12px !important;
    height: 12px !important;
    margin-left: -6px !important;
    margin-top: -6px !important;
    background: #fff !important;
    border: 2px solid #666 !important;
    border-radius: 0 !important;
}

.leaflet-editing-icon {
    width: 12px !important;
    height: 12px !important;
    margin-left: -6px !important;
    margin-top: -6px !important;
    background: #fff !important;
    border: 2px solid #3388ff !important;
    border-radius: 0 !important;
}

/* Vértice intermedio (para agregar nuevos puntos) */
.leaflet-editing-icon.leaflet-div-icon.leaflet-editing-icon-new {
    background: rgba(255, 255, 255, 0.6) !important;
    border: 2px dashed #3388ff !important;
}

.leaflet-draw-tooltip {
    background: rgba(0,0,0,0.9) !important;
    border: 1px solid var(--primary-color) !important;
    color: white !important;
    padding: 8px 12px !important;
    font-size: 12px !important;
    border-radius: 4px !important;
}

/* === Etiquetas de Polígonos === */
.polygon-label-container {
    background: transparent !important;
    border: none !important;
    width: auto !important;
    height: auto !important;
}

.polygon-label {
    background: transparent;
    text-align: center;
    white-space: nowrap;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.polygon-label-name,
.polygon-label-area,
.polygon-label-volume,
.polygon-label-height,
.polygon-label-pending {
    color: #ffffff;
    text-shadow: 
        -1px -1px 0 #000,
        1px -1px 0 #000,
        -1px 1px 0 #000,
        1px 1px 0 #000;
    line-height: 1.2;
    display: block;
}

.polygon-label-name {
    font-size: 11px;
    font-weight: 700;
}

.polygon-label-area {
    font-size: 10px;
    font-weight: 500;
}

.polygon-label-volume {
    font-size: 10px;
    font-weight: 600;
}

.polygon-label-height {
    font-size: 10px;
    font-weight: 600;
    color: #ffffff;
    text-shadow: 
        -1px -1px 0 #000,
        1px -1px 0 #000,
        -1px 1px 0 #000,
        1px 1px 0 #000;
}

.polygon-label-pending {
    font-size: 9px;
    font-style: italic;
    opacity: 0.9;
}

/* === Página de Login === */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 50%, #1e2530 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: var(--bg-panel);
    border-radius: 12px;
    padding: 32px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.login-logo {
    text-align: center;
    margin-bottom: 24px;
}

.login-logo-img {
    max-width: 220px;
    height: auto;
    margin: 0 auto 16px;
    display: block;
}

.login-logo-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), #6366f1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 28px;
}

.login-logo h1 {
    font-size: 20px;
    margin-bottom: 4px;
    color: var(--text-bright);
}

.login-logo p {
    color: var(--text-muted);
    font-size: 13px;
}

.login-form .btn {
    margin-top: 8px;
}

.login-error {
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
    padding: 10px;
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    font-size: 13px;
    display: none;
}

.login-error.show {
    display: block;
}

/* Login Hints */
.login-hints {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.login-hint-card {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px;
    background: var(--bg-darker);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.login-hint-card.admin {
    border-left: 3px solid var(--warning-color);
}

.login-hint-card.user {
    border-left: 3px solid var(--primary-color);
}

.hint-icon {
    font-size: 20px;
}

.hint-content strong {
    display: block;
    font-size: 13px;
    color: var(--text-bright);
    margin-bottom: 4px;
}

.hint-content p {
    font-size: 11px;
    color: var(--text-secondary);
    margin: 2px 0;
}

.hint-content code {
    background: var(--bg-input);
    padding: 1px 5px;
    border-radius: 3px;
    color: var(--primary-light);
    font-family: var(--font-mono);
    font-size: 11px;
}

.hint-content small {
    display: block;
    color: var(--text-muted);
    font-size: 10px;
    margin-top: 4px;
}

/* === Modo Comparación (Swipe) === */
.compare-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    overflow: hidden;
    background: #0a0a0a;
}

.compare-container .leaflet-container {
    background: #0a0a0a !important;
}

/* Mapa base (imagen derecha - debajo) */
.compare-map-full {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

/* Contenedor con clip (imagen izquierda - arriba) */
.compare-clip-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    clip-path: inset(0 50% 0 0);
    pointer-events: none;
}

.compare-map-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.compare-slider {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    transform: translateX(-50%);
    cursor: ew-resize;
    z-index: 1001;
    display: flex;
    align-items: center;
    justify-content: center;
}

.compare-slider-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 4px;
    background: white;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
}

.compare-slider-handle {
    width: 44px;
    height: 44px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    z-index: 1;
    color: #333;
    font-size: 12px;
    font-weight: bold;
}

.compare-slider-handle span {
    color: var(--primary-color);
}

.compare-labels {
    position: absolute;
    top: 12px;
    left: 12px;
    right: 12px;
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    z-index: 1002;
}

.compare-label {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    max-width: 45%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.compare-label.left {
    border-left: 3px solid #3498db;
}

.compare-label.right {
    border-left: 3px solid #e74c3c;
}

.btn-exit-compare {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    z-index: 1003;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    transition: all var(--transition-fast);
}

.btn-exit-compare:hover {
    background: #c0392b;
    transform: translateX(-50%) scale(1.05);
}

/* Toolbar btn active */
.toolbar-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* === Hidden utility === */
.hidden {
    display: none !important;
}

/* === Responsive === */
@media (max-width: 1200px) {
    :root {
        --sidebar-left-width: 220px;
        --sidebar-right-width: 260px;
    }
}

@media (max-width: 900px) {
    .app-layout-three-panel {
        flex-direction: column;
    }
    
    .sidebar-left, .sidebar-right {
        width: 100%;
        height: auto;
        max-height: 30vh;
    }
    
    .sidebar-left {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .sidebar-right {
        border-left: none;
        border-top: 1px solid var(--border-color);
    }
}

/* ============================================
   PANEL DE PERFIL DE ELEVACIÓN
   ============================================ */
.profile-panel {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 900px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-bottom: none;
    border-radius: 12px 12px 0 0;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
    z-index: 1000;
    transition: transform 0.3s ease;
}

.profile-panel.hidden {
    transform: translateX(-50%) translateY(100%);
}

.profile-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    border-radius: 12px 12px 0 0;
}

.profile-header h3 {
    margin: 0;
    font-size: 14px;
    color: var(--text-bright);
}

.btn-close-profile {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
    padding: 0 8px;
    line-height: 1;
}

.btn-close-profile:hover {
    color: var(--danger);
}

.profile-content {
    padding: 16px;
}

#profile-canvas {
    width: 100%;
    height: 250px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.profile-info {
    display: flex;
    justify-content: space-around;
    margin-top: 12px;
    padding: 10px;
    background: var(--bg-tertiary);
    border-radius: 6px;
}

.profile-info span {
    font-size: 12px;
    color: var(--text-muted);
}

.profile-info span:first-child {
    color: var(--primary);
    font-weight: 600;
}

.profile-controls {
    margin-top: 12px;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: 8px;
}

.profile-controls label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-primary);
}

.profile-controls #dtm-offset-value {
    color: #00cc66;
    font-weight: bold;
}

.profile-controls input[type="range"] {
    width: 100%;
    height: 6px;
    background: var(--bg-primary);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
}

.profile-controls input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: #00cc66;
    border-radius: 50%;
    cursor: pointer;
}

.profile-controls input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: #00cc66;
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

/* Línea de perfil en el mapa */
.leaflet-interactive.profile-line {
    stroke: #ff6b00;
    stroke-width: 3;
    stroke-dasharray: 8, 4;
}