:root {
    --bg-dark: #121418;
    --bg-panel: #1a1e24;
    --bg-card: #222730;
    --border: #2e3642;
    --text-primary: #f0f3f6;
    --text-secondary: #9aa5b5;
    --text-muted: #626e7e;
    --primary: #4ade80;
    --primary-hover: #22c55e;
    --accent: #38bdf8;
    --danger: #f87171;
    --danger-hover: #ef4444;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.topbar {
    height: 60px;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    gap: 16px;
    z-index: 100;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-icon {
    font-size: 26px;
}

.brand-text h1 {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

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

.header-badges {
    display: flex;
    align-items: center;
    gap: 10px;
}

.badge {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 5px 10px;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.badge-value {
    color: var(--text-primary);
    font-weight: 600;
    font-family: monospace;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #eab308;
    transition: background-color 0.3s;
}

.status-badge.online .status-dot {
    background-color: var(--primary);
    box-shadow: 0 0 8px rgba(74, 222, 128, 0.6);
}

.status-badge.offline .status-dot {
    background-color: var(--danger);
}

/* View Switcher */
.view-switch {
    display: flex;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 3px;
    gap: 4px;
}

.view-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 6px 14px;
    font-size: 13px;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}

.view-btn:hover {
    color: var(--text-primary);
}

.view-btn.active {
    background: var(--accent);
    color: #0c1824;
}

/* Buttons */
.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn {
    border: none;
    border-radius: 6px;
    padding: 7px 12px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--primary);
    color: #0c1824;
}

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

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

.btn-secondary:hover {
    color: var(--text-primary);
    background: #2d333f;
}

.btn-danger {
    background: rgba(248, 113, 113, 0.15);
    color: var(--danger);
    border: 1px solid rgba(248, 113, 113, 0.3);
}

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

/* App Layout */
.app-layout {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* Main Viewport */
.viewport-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: #0d0f12;
}

.view-panel {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}

.view-panel.hidden {
    display: none;
}

#canvas2D {
    width: 100%;
    height: 100%;
    display: block;
    cursor: grab;
}

#canvas2D:active {
    cursor: grabbing;
}

#container3D {
    width: 100%;
    height: 100%;
}

/* Overlay Cards */
.overlay-card {
    position: absolute;
    background: rgba(26, 30, 36, 0.88);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 14px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    z-index: 10;
}

.floating-controls {
    top: 16px;
    left: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ctrl-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 12px;
}

.ctrl-group label {
    color: var(--text-secondary);
}

.ctrl-group label strong {
    color: var(--text-primary);
}

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

.slider-row input[type="range"] {
    accent-color: var(--accent);
    cursor: pointer;
    width: 140px;
}

.btn-xs {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: 4px;
    padding: 3px 8px;
    font-size: 11px;
    cursor: pointer;
}

.btn-xs:hover {
    background: #2e3542;
}

.zoom-group {
    flex-direction: row;
    gap: 6px;
}

.btn-icon {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: 6px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.2s;
}

.btn-icon:hover {
    background: #2e3542;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
    font-size: 12px;
}

.legend-card {
    bottom: 16px;
    left: 16px;
    font-size: 11px;
    color: var(--text-secondary);
}

.legend-header {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.legend-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* Tooltip */
.block-tooltip {
    position: absolute;
    pointer-events: none;
    background: rgba(22, 27, 34, 0.95);
    border: 1px solid var(--accent);
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 12px;
    color: var(--text-primary);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.6);
    display: none;
    z-index: 1000;
    min-width: 160px;
}

.tooltip-title {
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 4px;
    font-size: 13px;
    text-transform: capitalize;
}

.tooltip-row {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 11px;
}

.tooltip-row strong, .tooltip-row span:last-child {
    color: var(--text-primary);
}

/* Sidebar */
.sidebar {
    width: 320px;
    background: var(--bg-panel);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.sidebar-section {
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.sidebar-section h3 {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.block-type-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 200px;
    overflow-y: auto;
}

.block-type-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 10px;
    font-size: 12px;
}

.block-color-swatch {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    display: inline-block;
    margin-right: 8px;
    vertical-align: middle;
}

.block-type-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-transform: capitalize;
}

.block-type-count {
    font-weight: 700;
    color: var(--accent);
    font-family: monospace;
    font-size: 12px;
}

.activity-feed {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 220px;
    overflow-y: auto;
}

.activity-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 10px;
    font-size: 11px;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.activity-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.activity-block {
    font-weight: 600;
    color: var(--text-primary);
    text-transform: capitalize;
}

.activity-time {
    color: var(--text-muted);
    font-size: 10px;
}

.activity-coords {
    color: var(--accent);
    font-family: monospace;
    font-size: 11px;
}

.empty-state {
    color: var(--text-muted);
    font-size: 12px;
    text-align: center;
    padding: 16px 0;
}

.commands-help {
    font-size: 12px;
    background: rgba(0, 0, 0, 0.2);
}

.cmd-item {
    padding: 4px 0;
    color: var(--text-secondary);
}

.cmd-item code {
    background: #0e1115;
    color: var(--primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 11px;
    border: 1px solid var(--border);
}

/* Modal Styles */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-backdrop.open {
    display: flex;
}

.modal-window {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 620px;
    max-width: 90vw;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
}

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

.modal-header h2 {
    font-size: 16px;
    font-weight: 700;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 18px;
    cursor: pointer;
    border-radius: 4px;
    padding: 4px 8px;
}

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

.modal-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.panel-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.card-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
}

.card-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.4;
}

.points-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.point-box {
    background: #14171d;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.point-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--accent);
}

.coord-inputs {
    display: flex;
    gap: 6px;
}

.coord-inputs label {
    flex: 1;
    font-size: 11px;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.coord-inputs input {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    padding: 5px 6px;
    font-size: 12px;
    font-family: monospace;
    width: 100%;
}

.coord-inputs input:focus {
    outline: none;
    border-color: var(--accent);
}

.area-status-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 6px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 12px;
}

.btn-row {
    display: flex;
    gap: 8px;
}

.copy-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #12151a;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 12px;
    gap: 12px;
}

.copy-box code {
    font-family: monospace;
    font-size: 12px;
    color: var(--primary);
    word-break: break-all;
}

.data-actions-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}