/* ============================================================
   RCF Acoustic 3D — Professional Design System
   Premium engineering-tool aesthetics
   ============================================================ */

/* ===== Design Tokens ===== */
:root {
    /* Backgrounds */
    --bg-app: #0d1117;
    --bg-surface: #161b22;
    --bg-elevated: #1c2129;
    --bg-input: #0d1117;
    --bg-hover: #21262d;
    --bg-active: #1a2332;

    /* Borders */
    --border: #30363d;
    --border-subtle: #21262d;
    --border-highlight: #388bfd40;

    /* Text */
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #484f58;
    --text-accent: #58a6ff;

    /* Accent Palette */
    --blue: #58a6ff;
    --blue-bright: #0a84ff;
    --purple: #8b5cf6;
    --green: #3fb950;
    --orange: #f0883e;
    --red: #f85149;
    --cyan: #39d2c0;
    --yellow: #e3b341;

    /* Zone Colors (carefully chosen for readability) */
    --zone-field: #3fb950;
    --zone-low: #58a6ff;
    --zone-mid: #8b5cf6;
    --zone-high: #f0883e;
    --zone-enclosure: #8b949e;

    /* Sizing */
    --toolbar-h: 44px;
    --sidebar-w: 310px;
    --radius: 6px;
    --radius-lg: 10px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-float: 0 16px 48px rgba(0, 0, 0, 0.6);

    /* Transitions */
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 13px;
    background: var(--bg-app);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================================================================
   TOOLBAR
   =================================================================== */
.toolbar {
    height: var(--toolbar-h);
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    z-index: 100;
    user-select: none;
    gap: 8px;
}

.toolbar-left,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

.toolbar-center {
    flex: 1;
    text-align: center;
}

.toolbar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-right: 4px;
}

.brand-mark {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.brand-name {
    font-weight: 700;
    font-size: 13px;
    letter-spacing: -0.3px;
}

.brand-sub {
    font-size: 9px;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-top: 1px;
}

.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 4px;
}

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

/* Tool Buttons */
.tool-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    padding: 4px 8px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.15s ease;
    font-size: 14px;
    line-height: 1;
    min-width: 44px;
}

.tool-btn span {
    font-size: 9px;
    letter-spacing: 0.3px;
    font-weight: 500;
}

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

.tool-btn:active {
    background: var(--bg-active);
}

.tool-btn:disabled {
    opacity: 0.3;
    cursor: default;
}

.tool-btn:disabled:hover {
    background: transparent;
    color: var(--text-secondary);
}

/* Project Title */
.project-title {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.project-title-text {
    font-weight: 600;
    font-size: 12px;
    color: var(--text-secondary);
}

.project-title-text.active {
    color: var(--text-primary);
}

.project-status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-muted);
}

.project-status-dot.active {
    background: var(--green);
    box-shadow: 0 0 6px rgba(63, 185, 80, 0.4);
}

/* Info Chips */
.toolbar-info {
    display: flex;
    gap: 6px;
}

.info-chip {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    background: var(--bg-app);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--text-secondary);
}

.info-chip i {
    font-size: 10px;
    color: var(--text-muted);
}

/* ===================================================================
   WORKSPACE LAYOUT
   =================================================================== */
.workspace {
    display: flex;
    height: calc(100vh - var(--toolbar-h));
}

/* ===================================================================
   SIDEBARS
   =================================================================== */
.sidebar {
    width: var(--sidebar-w);
    background: var(--bg-surface);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: relative;
    transition: width 0.3s var(--ease), opacity 0.2s ease;
    overflow: hidden;
    z-index: 10;
}

.sidebar-left {
    border-right: 1px solid var(--border);
}

.sidebar-right {
    border-left: 1px solid var(--border);
}

.sidebar.collapsed {
    width: 0;
    border: none;
}

/* Sidebar Toggle */
.sidebar-toggle {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 48px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 11;
    font-size: 10px;
    color: var(--text-muted);
    transition: all 0.2s ease;
}

.sidebar-toggle:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.sidebar-toggle-left {
    right: -16px;
    border-left: none;
    border-radius: 0 4px 4px 0;
}

.sidebar-toggle-right {
    left: -16px;
    border-right: none;
    border-radius: 4px 0 0 4px;
}

/* Sidebar Tabs */
.sidebar-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    background: var(--bg-elevated);
    flex-shrink: 0;
}

.sidebar-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 8px 4px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 12px;
    transition: all 0.15s ease;
    border-bottom: 2px solid transparent;
}

.sidebar-tab span {
    font-size: 9px;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.sidebar-tab:hover {
    color: var(--text-secondary);
}

.sidebar-tab.active {
    color: var(--blue);
    border-bottom-color: var(--blue);
    background: rgba(88, 166, 255, 0.05);
}

/* Sidebar Content */
.sidebar-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0;
    display: none;
}

.sidebar-content.active {
    display: block;
}

.sidebar-content::-webkit-scrollbar {
    width: 4px;
}

.sidebar-content::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-content::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
}

/* Sidebar Sections */
.sidebar-section {
    padding: 14px 14px 10px;
    border-bottom: 1px solid var(--border-subtle);
}

.sidebar-section:last-child {
    border-bottom: none;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.section-icon {
    width: 22px;
    height: 22px;
    background: rgba(88, 166, 255, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: var(--blue);
}

.section-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--text-secondary);
}

/* ===== Parameter Inputs ===== */
.param-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

.param-label {
    width: 72px;
    flex-shrink: 0;
    font-size: 11px;
    color: var(--text-secondary);
    font-weight: 500;
}

.param-input-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.15s ease;
}

.param-input-wrap:focus-within {
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.1);
}

.param-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: 6px 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    outline: none;
    width: 100%;
}

.param-input::placeholder {
    color: var(--text-muted);
}

.param-unit {
    padding: 0 8px;
    font-size: 10px;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    background: var(--bg-elevated);
    height: 100%;
    display: flex;
    align-items: center;
    border-left: 1px solid var(--border-subtle);
}

.param-select {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 6px 8px;
    border-radius: var(--radius);
    font-size: 12px;
    outline: none;
    cursor: pointer;
}

.param-select:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.1);
}

.param-select option {
    background: var(--bg-surface);
}

/* Quick Presets */
.quick-presets {
    display: flex;
    gap: 4px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.preset-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: var(--bg-app);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 10px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.preset-btn:hover {
    border-color: var(--blue);
    color: var(--blue);
    background: rgba(88, 166, 255, 0.05);
}

.preset-icon {
    font-size: 11px;
}

/* Generate Button */
.btn-generate {
    width: 100%;
    padding: 12px 16px;
    background: linear-gradient(135deg, var(--blue-bright), var(--purple));
    border: none;
    border-radius: var(--radius);
    color: white;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.25s var(--ease);
    box-shadow: 0 2px 8px rgba(10, 132, 255, 0.25);
    position: relative;
    overflow: hidden;
}

.btn-generate::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 40%, rgba(255, 255, 255, 0.1) 50%, transparent 60%);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.btn-generate:hover::before {
    transform: translateX(100%);
}

.btn-generate:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(10, 132, 255, 0.35);
}

.btn-generate:active {
    transform: translateY(0);
}

.btn-generate-content,
.btn-generate-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-generate.loading .btn-generate-content {
    display: none;
}

.btn-generate.loading .btn-generate-loading {
    display: flex !important;
}

/* Secondary Action Button */
.btn-secondary-action {
    width: 100%;
    padding: 8px 12px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-secondary-action:hover {
    border-color: var(--blue);
    color: var(--blue);
    background: rgba(88, 166, 255, 0.05);
}

/* Sliders */
.slider-param {
    margin-bottom: 10px;
}

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

.slider-header label {
    flex: 1;
    font-size: 11px;
    color: var(--text-secondary);
}

.slider-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    font-weight: 600;
    color: var(--blue);
}

.slider-unit {
    font-size: 10px;
    color: var(--text-muted);
    margin-left: 2px;
}

.custom-range {
    width: 100%;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.custom-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--blue);
    border-radius: 50%;
    border: 2px solid var(--bg-surface);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    transition: transform 0.15s ease;
}

.custom-range::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

/* View Controls */
.view-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.view-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px;
    background: var(--bg-app);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    transition: all 0.15s ease;
}

.view-btn span {
    font-size: 10px;
    font-weight: 500;
}

.view-btn:hover {
    border-color: var(--blue);
    color: var(--blue);
    background: rgba(88, 166, 255, 0.05);
}

/* Toggle Group */
.toggle-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 8px;
    border-radius: var(--radius);
    font-size: 12px;
    color: var(--text-secondary);
    transition: background 0.15s ease;
}

.toggle-row:hover {
    background: var(--bg-hover);
}

.form-check-input {
    background-color: var(--border);
    border-color: var(--border);
    cursor: pointer;
}

.form-check-input:checked {
    background-color: var(--blue);
    border-color: var(--blue);
}

.form-check-input:focus {
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.2);
}

/* Background Options */
.bg-options {
    display: flex;
    gap: 8px;
}

.bg-btn {
    width: 32px;
    height: 32px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: transparent;
    padding: 3px;
    cursor: pointer;
    transition: border-color 0.15s ease;
}

.bg-btn span {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 3px;
}

.bg-btn.active,
.bg-btn:hover {
    border-color: var(--blue);
}

/* Zones List */
.zones-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.zone-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    background: var(--bg-app);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.15s ease;
}

.zone-item:hover {
    border-color: var(--border);
    background: var(--bg-hover);
}

.zone-item.selected {
    border-color: var(--blue);
    background: rgba(88, 166, 255, 0.05);
}

.zone-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    flex-shrink: 0;
}

.zone-item-body {
    flex: 1;
    min-width: 0;
}

.zone-item-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.zone-item-info {
    font-size: 10px;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}

.zone-item-toggle {
    color: var(--text-muted);
    font-size: 14px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 24px 16px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 28px;
    margin-bottom: 8px;
    display: block;
    opacity: 0.5;
}

.empty-state p {
    font-size: 11px;
    margin: 0;
    line-height: 1.5;
}

/* ===================================================================
   VIEWPORT
   =================================================================== */
.viewport {
    flex: 1;
    position: relative;
    background: var(--bg-app);
    overflow: hidden;
}

.viewport-canvas {
    width: 100%;
    height: 100%;
}

.viewport-canvas canvas {
    display: block;
}

/* HUD Bottom */
.viewport-hud-bottom {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 26px;
    background: rgba(22, 27, 34, 0.85);
    backdrop-filter: blur(8px);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    z-index: 5;
    font-size: 10px;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}

.hud-left,
.hud-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hud-divider {
    color: var(--border);
}

.hud-item {
    white-space: nowrap;
}

/* Mini Controls */
.viewport-minicontrols {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 5;
}

.mini-ctrl {
    width: 32px;
    height: 32px;
    background: rgba(22, 27, 34, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.15s ease;
}

.mini-ctrl:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--blue);
}

/* Compass */
.viewport-compass {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 5;
}

.compass-ring {
    width: 48px;
    height: 48px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: rgba(22, 27, 34, 0.85);
    backdrop-filter: blur(8px);
    position: relative;
    font-size: 8px;
    font-weight: 700;
    color: var(--text-muted);
}

.compass-n,
.compass-e,
.compass-s,
.compass-w {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
}

.compass-n {
    top: 3px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--red);
}

.compass-s {
    bottom: 3px;
    left: 50%;
    transform: translateX(-50%);
}

.compass-e {
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
}

.compass-w {
    left: 5px;
    top: 50%;
    transform: translateY(-50%);
}

/* ===================================================================
   WELCOME SCREEN
   =================================================================== */
.welcome-screen {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center bottom, rgba(10, 132, 255, 0.08) 0%, var(--bg-app) 70%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 30;
    transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

.welcome-screen.hidden {
    opacity: 0;
    transform: scale(1.02);
    pointer-events: none;
}

.welcome-container {
    text-align: center;
    max-width: 420px;
    padding: 20px;
}

.welcome-logo {
    margin-bottom: 20px;
    animation: float 4s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }
}

.welcome-title {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin: 0 0 4px;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-subtitle {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 28px;
}

.welcome-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
    text-align: left;
}

.welcome-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: border-color 0.2s ease;
}

.welcome-feature:hover {
    border-color: var(--border);
}

.feature-icon {
    width: 36px;
    height: 36px;
    background: rgba(88, 166, 255, 0.08);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue);
    font-size: 16px;
    flex-shrink: 0;
}

.feature-text strong {
    display: block;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 1px;
}

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

.welcome-action {
    margin-top: 24px;
}

.welcome-hint {
    font-size: 11px;
    color: var(--text-secondary);
    padding: 10px 16px;
    background: rgba(88, 166, 255, 0.05);
    border: 1px solid var(--border-highlight);
    border-radius: var(--radius-lg);
}

.welcome-footer {
    margin-top: 24px;
    font-size: 10px;
    color: var(--text-muted);
}

.welcome-sep {
    margin: 0 6px;
    opacity: 0.3;
}

/* ===================================================================
   LOADING OVERLAY
   =================================================================== */
.loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(13, 17, 23, 0.92);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 35;
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    margin-bottom: 16px;
}

.loading-ring {
    animation: spin 1.2s linear infinite;
    transform-origin: center;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.loading-text {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 16px;
}

.loading-steps {
    display: flex;
    flex-direction: column;
    gap: 6px;
    text-align: left;
    max-width: 240px;
    margin: 0 auto;
}

.loading-step {
    font-size: 11px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.3s ease;
}

.loading-step.active {
    color: var(--blue);
}

.loading-step.done {
    color: var(--green);
}

/* ===================================================================
   RIGHT SIDEBAR: DATA
   =================================================================== */

/* Venue Card */
.venue-card {
    background: var(--bg-app);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.venue-card-header {
    padding: 12px 14px;
    background: rgba(88, 166, 255, 0.05);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 13px;
    color: var(--blue);
}

.venue-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--border-subtle);
}

.metric {
    background: var(--bg-app);
    padding: 10px 12px;
    text-align: center;
}

.metric-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.metric-label {
    font-size: 9px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Data Table */
.data-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 11px;
}

.data-table thead th {
    padding: 8px 6px;
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.col-color {
    width: 16px;
}

.data-table tbody td {
    padding: 7px 6px;
    border-bottom: 1px solid var(--border-subtle);
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.data-table tbody tr {
    cursor: pointer;
    transition: background 0.1s ease;
}

.data-table tbody tr:hover {
    background: var(--bg-hover);
}

.data-table tbody tr.selected {
    background: rgba(88, 166, 255, 0.08);
}

.data-table tbody tr.selected td {
    color: var(--text-primary);
}

.zone-dot {
    width: 8px;
    height: 8px;
    border-radius: 2px;
    display: inline-block;
}

.zone-name-cell {
    font-family: 'Inter', sans-serif !important;
    font-weight: 600;
    font-size: 11px !important;
}

/* Zone Detail */
.zone-detail {
    background: var(--bg-app);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.zone-detail-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-subtle);
}

.zone-detail-header h6 {
    font-size: 13px;
    font-weight: 600;
    margin: 0;
}

.zone-detail-color {
    width: 14px;
    height: 14px;
    border-radius: 4px;
}

.zone-detail-body {
    padding: 10px 14px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.zone-detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 11px;
}

.zone-detail-item .label {
    color: var(--text-muted);
    font-size: 10px;
}

.zone-detail-item .value {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
    font-size: 11px;
}

.zone-detail-note {
    padding: 10px 14px;
    font-size: 11px;
    color: var(--text-secondary);
    background: var(--bg-elevated);
    border-top: 1px solid var(--border-subtle);
    font-style: italic;
}

/* Technical Notes */
.tech-notes {
    font-size: 11px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.tech-notes h6 {
    font-size: 11px;
    font-weight: 600;
    color: var(--blue);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 14px 0 6px;
}

.tech-notes h6:first-child {
    margin-top: 0;
}

.tech-notes ul {
    padding-left: 16px;
    margin-bottom: 8px;
}

.tech-notes li {
    margin-bottom: 4px;
    color: var(--text-muted);
}

.tech-notes li strong {
    color: var(--text-secondary);
}

.tech-notes .warning-note {
    color: var(--orange);
}

/* ===================================================================
   MODALS
   =================================================================== */
.modal-pro {
    background: var(--bg-surface) !important;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-float);
}

.modal-pro .modal-header {
    border-bottom: 1px solid var(--border);
    padding: 14px 20px;
}

.modal-pro .modal-title {
    font-size: 14px;
    font-weight: 600;
}

.modal-pro .modal-body {
    padding: 20px;
}

/* Projects Grid */
.projects-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.project-card {
    display: flex;
    align-items: center;
    padding: 14px 16px;
    background: var(--bg-app);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    gap: 12px;
    transition: all 0.15s ease;
}

.project-card:hover {
    border-color: var(--blue);
    background: var(--bg-hover);
}

.project-card-icon {
    width: 36px;
    height: 36px;
    background: rgba(88, 166, 255, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue);
    font-size: 16px;
    flex-shrink: 0;
}

.project-card-body {
    flex: 1;
    min-width: 0;
}

.project-card-name {
    font-weight: 600;
    font-size: 13px;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.project-card-meta {
    font-size: 10px;
    color: var(--text-muted);
}

.project-card-actions {
    display: flex;
    gap: 6px;
}

.project-card-actions button {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border);
    background: transparent;
    border-radius: var(--radius);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: all 0.15s ease;
}

.project-card-actions button:hover {
    border-color: var(--blue);
    color: var(--text-primary);
}

.project-card-actions button.btn-danger:hover {
    border-color: var(--red);
    color: var(--red);
}

/* About Grid */
.about-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    background: var(--bg-app);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.about-item {
    display: flex;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 12px;
}

.about-item:last-child {
    border-bottom: none;
}

.about-label {
    width: 90px;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    flex-shrink: 0;
    padding-top: 1px;
}

.about-value {
    color: var(--text-secondary);
}

/* ===================================================================
   TOASTS
   =================================================================== */
.toast-pro {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 16px;
    color: var(--text-primary);
    font-size: 12px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 8px;
    animation: slideUp 0.3s var(--ease);
}

@keyframes slideUp {
    from {
        transform: translateY(12px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.toast-pro .toast-icon {
    font-size: 16px;
}

.toast-pro.toast-success .toast-icon {
    color: var(--green);
}

.toast-pro.toast-error .toast-icon {
    color: var(--red);
}

.toast-pro.toast-info .toast-icon {
    color: var(--blue);
}

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media (max-width: 1100px) {
    .sidebar {
        width: 280px;
    }
}

@media (max-width: 900px) {
    .sidebar-right {
        position: absolute;
        right: 0;
        top: 0;
        bottom: 0;
        box-shadow: var(--shadow-lg);
        z-index: 20;
    }

    .sidebar-right.collapsed {
        width: 0;
    }

    .toolbar-info {
        display: none;
    }
}

@media (max-width: 700px) {
    .sidebar-left {
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        box-shadow: var(--shadow-lg);
        z-index: 20;
    }

    .sidebar-left.collapsed {
        width: 0;
    }

    .toolbar .brand-text {
        display: none;
    }

    .tool-btn span {
        display: none;
    }
}