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

body {
    font-family: var(--font-sans);
    font-size: 13px;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-medium) 100%);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

:root {
    --font-sans: "IBM Plex Sans", "Segoe UI", sans-serif;
    --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
}

.theme-classic {
    --primary-blue: #2563eb;
    --dark-blue: #1e40af;
    --light-blue: #dbeafe;
    --accent-blue: #60a5fa;
    --sky-blue: #38bdf8;

    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-medium: #f1f5f9;
    --bg-dark: #e2e8f0;
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;

    --selected-bg: #e0f2fe;
    --hover-bg: #f1f5f9;

    --accent: #0ea5e9;
    --accent-strong: #2563eb;
    --device-fill: #fde68a;
    --device-header: #fcd34d;
    --device-border: #f59e0b;
    --coupler-fill: #e0f2fe;
    --coupler-header: #bae6fd;
    --coupler-border: #0ea5e9;
    --object-fill: #fef3c7;
    --object-fill-tx: #dcfce7;
    /* Graph GroupObject semantic fills */
    --graph-object-fill-s-t: #dcfce7;
    --graph-object-fill-s: #dbeafe;
    --graph-object-fill-no-c: #e2e8f0;
    --graph-object-fill-isolated: #f1f5f9;
    --graph-object-fill-other: #fef3c7;
    --object-border: #f59e0b;
    --line-fill: rgba(14, 165, 233, 0.12);
    --line-border: #0ea5e9;
    --area-fill: rgba(15, 23, 42, 0.04);
    --area-border: #1e293b;

    --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.08);
    --shadow-md: 0 4px 10px -4px rgba(15, 23, 42, 0.18);
    --shadow-lg: 0 14px 24px -12px rgba(15, 23, 42, 0.25);
    --shadow-xl: 0 22px 32px -12px rgba(15, 23, 42, 0.3);
    --border: var(--border-color);
    --ink: var(--text-primary);
    --muted: var(--text-secondary);
}

.theme-latte {
    /* Catppuccin Latte */
    --ctp-base: #eff1f5;
    --ctp-mantle: #e6e9ef;
    --ctp-crust: #dce0e8;
    --ctp-text: #4c4f69;
    --ctp-subtext1: #5c5f77;
    --ctp-subtext0: #6c6f85;
    --ctp-overlay2: #7c7f93;
    --ctp-overlay1: #8c8fa1;
    --ctp-overlay0: #9ca0b0;
    --ctp-surface2: #acb0be;
    --ctp-surface1: #bcc0cc;
    --ctp-surface0: #ccd0da;
    --ctp-rosewater: #dc8a78;
    --ctp-flamingo: #dd7878;
    --ctp-pink: #ea76cb;
    --ctp-mauve: #8839ef;
    --ctp-red: #d20f39;
    --ctp-maroon: #e64553;
    --ctp-peach: #fe640b;
    --ctp-yellow: #df8e1d;
    --ctp-green: #40a02b;
    --ctp-teal: #179299;
    --ctp-sky: #04a5e5;
    --ctp-sapphire: #209fb5;
    --ctp-blue: #1e66f5;
    --ctp-lavender: #7287fd;

    --primary-blue: var(--ctp-blue);
    --dark-blue: var(--ctp-sapphire);
    --light-blue: #dbe7ff;
    --accent-blue: var(--ctp-lavender);
    --sky-blue: var(--ctp-sky);

    --bg-white: var(--ctp-base);
    --bg-light: var(--ctp-mantle);
    --bg-medium: var(--ctp-surface0);
    --bg-dark: var(--ctp-surface1);
    --border-color: var(--ctp-surface1);
    --text-primary: var(--ctp-text);
    --text-secondary: var(--ctp-subtext1);
    --text-muted: var(--ctp-subtext0);

    --selected-bg: #dfe3f9;
    --hover-bg: #e8ebf2;

    --accent: var(--ctp-teal);
    --accent-strong: var(--ctp-sapphire);
    --graph-accent: var(--ctp-teal);
    --graph-accent-strong: var(--ctp-peach);
    --device-fill: #f4d6cf;
    --device-header: #f0cfc6;
    --device-border: #c9807f;
    --coupler-fill: #d6eaf3;
    --coupler-header: #c9e2ee;
    --coupler-border: #2b6f87;
    --object-fill: #fae7c4;
    --object-fill-tx: #dff2ea;
    /* Graph GroupObject semantic fills (Latte): green / blue / grey / yellow */
    --graph-object-fill-s-t: #dff2ea;
    --graph-object-fill-s: #dbe7ff;
    --graph-object-fill-no-c: #e6e9ef;
    --graph-object-fill-other: #fae7c4;
    --object-border: #d3b57f;
    --line-fill: rgba(23, 146, 153, 0.1);
    --line-border: var(--ctp-teal);
    --area-fill: rgba(76, 79, 105, 0.06);
    --area-border: var(--ctp-text);

    --shadow-sm: 0 1px 2px 0 rgba(76, 79, 105, 0.08);
    --shadow-md: 0 4px 6px -1px rgba(76, 79, 105, 0.15);
    --shadow-lg: 0 12px 20px -10px rgba(76, 79, 105, 0.25);
    --shadow-xl: 0 22px 30px -12px rgba(76, 79, 105, 0.3);
    --border: var(--border-color);
    --ink: var(--text-primary);
    --muted: var(--text-secondary);
}

.theme-mocha {
    --ctp-base: #1e1e2e;
    --ctp-mantle: #181825;
    --ctp-crust: #11111b;
    --ctp-text: #cdd6f4;
    --ctp-subtext1: #bac2de;
    --ctp-subtext0: #a6adc8;
    --ctp-overlay2: #9399b2;
    --ctp-overlay1: #7f849c;
    --ctp-overlay0: #6c7086;
    --ctp-surface2: #585b70;
    --ctp-surface1: #45475a;
    --ctp-surface0: #313244;
    --ctp-rosewater: #f5e0dc;
    --ctp-flamingo: #f2cdcd;
    --ctp-pink: #f5c2e7;
    --ctp-mauve: #cba6f7;
    --ctp-red: #f38ba8;
    --ctp-maroon: #eba0ac;
    --ctp-peach: #fab387;
    --ctp-yellow: #f9e2af;
    --ctp-green: #a6e3a1;
    --ctp-teal: #94e2d5;
    --ctp-sky: #89dceb;
    --ctp-sapphire: #74c7ec;
    --ctp-blue: #89b4fa;
    --ctp-lavender: #b4befe;

    --primary-blue: var(--ctp-blue);
    --dark-blue: var(--ctp-sapphire);
    --accent-blue: var(--ctp-lavender);
    --sky-blue: var(--ctp-sky);

    --bg-white: var(--ctp-base);
    --bg-light: var(--ctp-mantle);
    --bg-medium: var(--ctp-surface0);
    --bg-dark: var(--ctp-surface1);
    --border-color: var(--ctp-surface1);
    --text-primary: var(--ctp-text);
    --text-secondary: var(--ctp-subtext1);
    --text-muted: var(--ctp-subtext0);

    --light-blue: rgba(137, 180, 250, 0.2);
    --selected-bg: rgba(137, 180, 250, 0.18);
    --hover-bg: rgba(69, 71, 90, 0.6);

    --accent: var(--ctp-teal);
    --accent-strong: var(--ctp-sapphire);

    --device-fill: rgba(245, 224, 220, 0.35);
    --device-header: rgba(245, 224, 220, 0.55);
    --device-border: #f2cdcd;
    --coupler-fill: rgba(137, 220, 235, 0.18);
    --coupler-header: rgba(137, 220, 235, 0.3);
    --coupler-border: #74c7ec;
    --object-fill: rgba(249, 226, 175, 0.2);
    --object-fill-tx: rgba(148, 226, 213, 0.2);
    --object-border: rgba(249, 226, 175, 0.55);
    --line-fill: rgba(148, 226, 213, 0.08);
    --area-fill: rgba(186, 194, 222, 0.05);
    --area-border: var(--ctp-subtext1);
    --shadow-sm: 0 1px 2px 0 rgba(17, 17, 27, 0.5);
    --shadow-md: 0 8px 14px -6px rgba(17, 17, 27, 0.6);
    --shadow-lg: 0 16px 28px -12px rgba(17, 17, 27, 0.7);
    --shadow-xl: 0 28px 40px -18px rgba(17, 17, 27, 0.8);

    /* Graph overrides: use Latte palette for graph readability */
    /* Graph text uses dark ink to stay readable on light node fills. */
    --graph-ink: #4c4f69;
    --graph-muted: #5c5f77;
    --graph-accent: var(--ctp-sky);
    --graph-accent-strong: var(--ctp-peach);
    --graph-border: #bcc0cc;
    --graph-device-fill: #f4d6cf;
    --graph-device-header: #f0cfc6;
    --graph-device-border: #c9807f;
    --graph-coupler-fill: #d6eaf3;
    --graph-coupler-header: #c9e2ee;
    --graph-coupler-border: #2b6f87;
    --graph-object-fill: #fae7c4;
    --graph-object-fill-tx: #dff2ea;
    /* Graph GroupObject semantic fills (Latte): green / blue / grey / yellow */
    --graph-object-fill-s-t: #dff2ea;
    --graph-object-fill-s: #dbe7ff;
    --graph-object-fill-no-c: #e6e9ef;
    --graph-object-fill-other: #fae7c4;
    --graph-object-border: #d3b57f;
    --graph-line-fill: rgba(23, 146, 153, 0.1);
    --graph-line-border: #179299;
    --graph-area-fill: rgba(76, 79, 105, 0.06);
    --graph-area-border: #4c4f69;
}

.theme-mocha .title-text {
    color: var(--ctp-text);
}

/* Avoid global transitions; only apply to interactive UI elements. */
.tab,
.content-tab,
.panel-toggle-btn,
.toolbar-btn,
.tree-item,
.panel-reopen-btn,
.prop-tab,
.graph-mode-btn,
.search-input,
.window-controls span {
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.sidebar,
.properties-sidebar {
    transition: width 0.2s ease, margin 0.2s ease;
}

.hidden {
    display: none !important;
}

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

.upload-zone {
    position: fixed;
    inset: 0;
    z-index: 1500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(15, 23, 42, 0.45);
}

.upload-content {
    width: min(520px, 92vw);
    padding: 24px;
    background: var(--bg-white);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xl);
    text-align: center;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.upload-content h2 {
    font-size: 18px;
    font-weight: 700;
}

.upload-content p {
    font-size: 13px;
    color: var(--text-secondary);
}

.upload-zone.dragover .upload-content {
    border-color: var(--primary-blue);
    box-shadow: 0 12px 28px rgba(37, 99, 235, 0.25);
    transform: translateY(-2px);
}

.file-label {
    color: var(--primary-blue);
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
}

.password-row {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
    font-size: 12px;
    color: var(--text-secondary);
}

.password-actions {
    display: flex;
    gap: 8px;
}

.password-actions input {
    flex: 1;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 12px;
}

.password-actions button {
    padding: 8px 12px;
    border: 1px solid var(--primary-blue);
    background: var(--primary-blue);
    color: white;
    border-radius: 8px;
    font-size: 12px;
    cursor: pointer;
}

.password-hint {
    color: #b91c1c;
    font-size: 11px;
}

.spinner {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-blue);
    animation: spin 0.9s linear infinite;
}

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

.window {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--bg-light);
}

.app-logo {
    background: var(--light-blue);
    color: var(--primary-blue);
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 11px;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
}

.brand-logo {
    width: 22px;
    height: 22px;
    display: inline-block;
}

.title-text {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.3px;
    color: var(--text-primary);
}

#project-title {
    cursor: pointer;
}

#project-title:hover,
#project-title:focus {
    color: var(--primary-blue);
    text-decoration: underline;
}

/* Tabs Bar - Modern Design */
.tabs-bar {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 8px;
    box-shadow: var(--shadow-sm);
    gap: 12px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 8px;
    min-width: 220px;
}

.tab-container {
    display: flex;
    flex: 1;
}

.tab-nav {
    display: flex;
    align-items: center;
    padding: 0 16px;
    font-size: 16px;
    color: var(--text-secondary);
    gap: 12px;
}

.tab-nav span {
    cursor: pointer;
    transition: color 0.2s;
}

.tab-nav span:hover {
    color: var(--primary-blue);
}

.tab {
    background: transparent;
    padding: 12px 20px;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    position: relative;
}

.tab:hover {
    background: var(--hover-bg);
    color: var(--primary-blue);
}

.tab.active {
    background: transparent;
    color: var(--primary-blue);
    border-bottom-color: var(--primary-blue);
}

.tab-add {
    font-size: 20px;
    padding: 0 16px;
    color: var(--primary-blue);
    cursor: pointer;
    display: flex;
    align-items: center;
}

.tab-add:hover {
    transform: scale(1.1);
}

/* Toolbar - Clean and Minimal */
.toolbar {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 0;
    display: none;
    gap: 12px;
    align-items: center;
}

.toolbar-group {
    display: flex;
    gap: 6px;
}

.toolbar-btn {
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-white);
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-primary);
    border-radius: 6px;
    font-weight: 500;
}

.toolbar-btn:hover {
    background: var(--light-blue);
    border-color: var(--accent-blue);
    color: var(--primary-blue);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* Breadcrumb - Subtle and Clean */
.breadcrumb {
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    padding: 6px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-secondary);
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Main Layout */
.main-layout {
    display: flex;
    flex: 1;
    overflow: hidden;
    background: var(--bg-light);
}

/* Sidebar - Modern Card Style */
.sidebar {
    width: 280px;
    background: var(--bg-white);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: width 0.3s ease, margin 0.3s ease;
    margin: 12px 0 12px 12px;
    border-radius: 12px;
    overflow: hidden;
}

.sidebar.collapsed {
    width: 0;
    margin: 12px 0;
    overflow: hidden;
    border-right: none;
}

.sidebar-header {
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-white) 100%);
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 13px;
}

.sidebar-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.icon-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 3px 6px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 11px;
    color: var(--text-secondary);
}

.icon-btn:hover {
    background: var(--hover-bg);
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.panel-toggle-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.panel-toggle-btn:hover {
    background: var(--light-blue);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

/* Resizers */
.resizer {
    width: 6px;
    background: transparent;
    cursor: col-resize;
    z-index: 100;
    transition: background 0.2s;
    touch-action: none;
}

.resizer:hover,
.resizer.active {
    background: var(--primary-blue);
}

.is-resizing .sidebar,
.is-resizing .properties-sidebar {
    transition: none !important;
}

/* Floating reopen buttons */
.panel-reopen-btn {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: 12px 8px;
    border-radius: 0 6px 6px 0;
    cursor: pointer;
    font-size: 14px;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    transition: all 0.2s;
}

.panel-reopen-btn.left {
    left: 0;
    border-radius: 0 6px 6px 0;
}

.panel-reopen-btn.right {
    right: 0;
    border-radius: 6px 0 0 6px;
}

.panel-reopen-btn:hover {
    background: var(--dark-blue);
    transform: translateY(-50%) scale(1.1);
}

.tree {
    flex: 1;
    overflow-y: auto;
    overflow-x: auto;
    padding: 8px 0;
}

.tree-item {
    padding: 6px 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    white-space: nowrap;
    min-width: max-content;
    color: var(--text-primary);
    font-size: 12px;
    border-left: 3px solid transparent;
    user-select: none;
}

.tree-item[data-has-children="true"] {
    cursor: pointer;
}

.tree-item[data-has-children="true"]:hover {
    background: var(--hover-bg);
}

.tree-item:hover {
    background: var(--hover-bg);
    border-left-color: var(--accent-blue);
}

.tree-item.selected {
    background: var(--selected-bg);
    border-left-color: var(--primary-blue);
    color: var(--primary-blue);
    font-weight: 600;
}

.indent-1 {
    padding-left: 32px;
}

.indent-2 {
    padding-left: 52px;
}

.indent-3 {
    padding-left: 72px;
}

.expand-icon {
    width: 12px;
    font-size: 10px;
    text-align: center;
    color: var(--text-secondary);
    transition: transform 0.2s ease;
    display: inline-block;
}

.tree-item:hover .expand-icon {
    color: var(--primary-blue);
}

/* Content Area - Modern Card */
.content-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-light);
    overflow: hidden;
    margin: 12px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    background: var(--bg-white);
}

.graph-toolbar {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    gap: 8px;
    padding: 6px;
    border-radius: 10px;
    background: rgba(239, 241, 245, 0.9);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    z-index: 4;
    backdrop-filter: blur(6px);
}

.graph-legend {
    position: absolute;
    top: 52px;
    right: 12px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px;
    border-radius: 10px;
    background: rgba(239, 241, 245, 0.95);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    z-index: 5;
    backdrop-filter: blur(6px);
    white-space: nowrap;
    font-size: 11px;
    color: var(--text-secondary);
}

.theme-mocha .graph-legend {
    background: rgba(30, 30, 46, 0.92);
    color: var(--ctp-subtext1);
}

.graph-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    line-height: 1;
}

.graph-legend-swatch {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.graph-legend-swatch.st {
    background: var(--graph-object-fill-s-t, var(--object-fill-tx));
}

.graph-legend-swatch.s {
    background: var(--graph-object-fill-s, var(--object-fill));
}

.graph-legend-swatch.noc {
    background: var(--graph-object-fill-no-c, var(--bg-dark));
}

.graph-legend-swatch.other {
    background: var(--graph-object-fill-other, var(--object-fill));
}

.theme-mocha .graph-toolbar {
    background: rgba(30, 30, 46, 0.92);
}

.graph-toolbar .toolbar-btn {
    padding: 4px 8px;
    font-size: 11px;
}

body.graph-fullscreen .sidebar,
body.graph-fullscreen .properties-sidebar,
body.graph-fullscreen #left-resizer,
body.graph-fullscreen #right-resizer {
    display: none !important;
}

body.graph-fullscreen .content-area {
    margin: 0;
    border-radius: 0;
    box-shadow: none;
}

body.graph-fullscreen .panel-reopen-btn {
    display: none;
}

body.graph-fullscreen .tabs-bar {
    display: none;
}

body.graph-fullscreen .window {
    height: 100vh;
}

.content-tabs {
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    padding: 0 16px;
    align-items: center;
}

.content-actions {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.content-btn {
    border: 1px solid var(--border-color);
    background: var(--bg-white);
    color: var(--text-secondary);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 11px;
    cursor: pointer;
}

.content-btn:hover {
    background: var(--light-blue);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.content-tab {
    padding: 10px 16px;
    font-size: 12px;
    cursor: pointer;
    color: var(--text-secondary);
    font-weight: 500;
    border-bottom: 2px solid transparent;
}

.content-tab:hover {
    color: var(--primary-blue);
}

.content-tab.active {
    color: var(--primary-blue);
    border-bottom-color: var(--primary-blue);
    font-weight: 600;
}

.graph-mode {
    display: inline-flex;
    gap: 6px;
    margin-left: 12px;
}

.graph-mode-btn {
    border: 1px solid var(--border-color);
    background: var(--bg-white);
    color: var(--text-secondary);
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 11px;
    cursor: pointer;
}

.graph-mode-btn.active {
    background: var(--light-blue);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    font-weight: 600;
}

.table-container {
    flex: 1;
    overflow: auto;
    background: var(--bg-white);
    --table-row-height: 28px;
}

/* Tables - Modern and Clean */
table {
    width: max-content;
    min-width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 12px;
    table-layout: fixed;
}

th {
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
    padding: 6px 10px;
    text-align: left;
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    /* Important: allow shrinking below the header word width.
       We keep the text itself on one line via .th-label (below). */
    white-space: normal;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 12px;
    min-width: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 10;
    cursor: pointer;
    user-select: none;
    overflow: hidden;
    text-overflow: ellipsis;
    border-right: 1px solid var(--border-color);
}

th .th-label {
    /* Remove header text from normal flow so it doesn't clamp column min-width
       when the table uses width: max-content (horizontal scrollbar mode). */
    position: absolute;
    left: 10px;
    right: 26px;
    top: 50%;
    transform: translateY(-50%);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    pointer-events: none;
}

th:hover {
    background: linear-gradient(180deg, var(--light-blue) 0%, var(--bg-light) 100%);
    color: var(--primary-blue);
}

th.sortable::after {
    content: ' ⇅';
    opacity: 0.3;
    font-size: 10px;
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

th.sort-asc::after {
    content: ' ▲';
    opacity: 1;
    color: var(--primary-blue);
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

th.sort-desc::after {
    content: ' ▼';
    opacity: 1;
    color: var(--primary-blue);
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

th:first-child,
th:nth-child(2) {
    width: 40px;
    text-align: center;
}

.col-resizer {
    position: absolute;
    right: 0;
    top: 0;
    width: 6px;
    height: 100%;
    cursor: col-resize;
    z-index: 2;
}

.col-resizer::after {
    content: '';
    position: absolute;
    left: 2px;
    top: 20%;
    width: 1px;
    height: 60%;
    background: var(--border-color);
    opacity: 0.6;
}


td {
    padding: 5px 10px;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-primary);
    font-size: 12px;
    min-width: 0;
    border-right: 1px solid var(--border-color);
    height: var(--table-row-height);
    line-height: calc(var(--table-row-height) - 10px);
}

td:first-child,
td:nth-child(2) {
    text-align: center;
    padding: 5px 6px;
}

th:last-child,
td:last-child {
    border-right: none;
}

tr {
    transition: background-color 0.15s ease;
}

tr.table-row {
    height: var(--table-row-height);
}

.table-row.row-even {
    background: var(--bg-light);
}

tr.table-row:hover {
    background: var(--hover-bg);
    box-shadow: none;
}

tr.table-row:active {
    transform: none;
}

tr.selected-row {
    background: var(--selected-bg);
    color: var(--primary-blue);
    font-weight: 600;
}

tr.table-spacer td {
    border: none;
    background: transparent;
    padding: 0;
}

/* Properties Sidebar - Premium Card */
.properties-sidebar {
    width: 320px;
    background: var(--bg-white);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    margin: 12px 12px 12px 0;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: width 0.3s ease, margin 0.3s ease;
}

.properties-sidebar.collapsed {
    width: 0;
    margin-right: 0;
    overflow: hidden;
    border-left: none;
}

.properties-header {
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-white) 100%);
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--text-primary);
}

.properties-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-light);
}

.prop-tab {
    flex: 1;
    text-align: center;
    padding: 8px;
    cursor: pointer;
    font-size: 11px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.2s;
}

.prop-tab:hover {
    background: var(--hover-bg);
    color: var(--primary-blue);
}

.prop-tab.active {
    background: var(--bg-white);
    color: var(--primary-blue);
    border-bottom: 3px solid var(--primary-blue);
    font-weight: 600;
}

.properties-content {
    flex: 1;
    padding: 12px;
    overflow-y: auto;
}

.prop-group {
    margin-bottom: 12px;
}

.prop-label {
    display: block;
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.prop-value {
    width: 100%;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    font-size: 12px;
    border-radius: 6px;
    background: var(--bg-light);
    color: var(--text-primary);
}

.prop-value:focus {
    outline: none;
    border-color: var(--primary-blue);
    background: var(--bg-white);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Properties Panel Extras */
.panel-header {
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.panel-type {
    font-size: 10px;
    text-transform: uppercase;
    color: var(--primary-blue);
    font-weight: 700;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
}

.panel-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
    word-break: break-word;
}

.panel-subtitle {
    font-family: monospace;
    font-size: 11px;
    color: var(--text-secondary);
}

.panel-section {
    margin-bottom: 20px;
}

.panel-section h3 {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.panel-tab-panel {
    display: none;
}

.panel-tab-panel.active {
    display: block;
}

.panel-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 6px 0;
    border-bottom: 1px dashed var(--border-color);
    font-size: 12px;
}

.panel-row label {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.panel-value {
    color: var(--text-primary);
    font-weight: 500;
    text-align: right;
    max-width: 60%;
    word-break: break-word;
}

.panel-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

.panel-table th,
.panel-table td {
    padding: 6px 8px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    vertical-align: top;
}

.panel-table th {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.4px;
    background: var(--bg-light);
}

.panel-table tbody tr:nth-child(even) td {
    background: var(--bg-light);
}

.properties-sidebar .panel-table-wrap {
    overflow-x: auto;
    width: 100%;
}

.properties-sidebar .panel-table {
    width: max-content;
    min-width: 100%;
    table-layout: auto;
}

.properties-sidebar .panel-table th,
.properties-sidebar .panel-table td {
    white-space: nowrap;
}

.panel-table.params-table {
    width: 100%;
    table-layout: fixed;
}

.panel-table.params-table th,
.panel-table.params-table td {
    white-space: normal;
}

.panel-table.params-table .param-col-name {
    width: 55%;
}

.panel-table.params-table .param-col-value {
    width: 45%;
}

.panel-table.params-table .param-name {
    font-weight: 600;
    color: var(--text-primary);
    word-break: break-word;
}

.panel-table.params-table .param-meta {
    margin-top: 2px;
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.panel-table.params-table .param-value-main {
    font-weight: 500;
    color: var(--text-primary);
    word-break: break-word;
}

.panel-table.params-table .param-value-raw {
    margin-top: 2px;
    font-size: 10px;
    color: var(--text-secondary);
    font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);
}

.panel-item {
    padding: 8px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.85rem;
}

.panel-item-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.panel-item-meta {
    color: var(--text-secondary);
    font-size: 0.75rem;
    display: flex;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: wrap;
}

.panel-item-flags {
    font-weight: 600;
    letter-spacing: 0.5px;
}

.panel-item-tags {
    display: inline-flex;
    gap: 6px;
    flex-wrap: wrap;
}

.panel-item-value {
    flex: 1;
    min-width: 0;
    word-break: break-word;
}

.panel-empty {
    font-size: 0.8rem;
    color: var(--text-muted);
    padding: 6px 0;
}

.panel-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    background: var(--light-blue);
    color: var(--primary-blue);
}

.panel-flags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.flag-badge {
    padding: 2px 6px;
    border-radius: 6px;
    font-size: 10px;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.flag-badge.active {
    background: var(--light-blue);
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.panel-link {
    color: var(--primary-blue);
    cursor: pointer;
    font-size: 12px;
    text-decoration: underline;
}

.panel-link-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 10px;
}

.panel-item.nav-target {
    cursor: pointer;
    transition: border-color 0.15s ease, background 0.15s ease;
}

.panel-item.nav-target:hover {
    border-color: var(--primary-blue);
    background: var(--hover-bg);
}

.table-cell-nav {
    color: var(--primary-blue);
    cursor: pointer;
    text-decoration: underline;
}

.context-menu {
    position: fixed;
    z-index: 10000;
    min-width: 200px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.context-menu.hidden {
    display: none;
}

.context-menu-item {
    text-align: left;
    border: none;
    background: transparent;
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 12px;
    color: var(--text-primary);
    cursor: pointer;
}

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

.context-menu-item:disabled {
    color: var(--text-muted);
    cursor: not-allowed;
}

.context-menu-separator {
    height: 1px;
    background: var(--border-color);
    margin: 4px 2px;
}


/* Utility Classes */
.icon {
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.status-check {
    color: var(--primary-blue);
    font-weight: bold;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-dark);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Search Input */
.search-container {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
}

.settings-btn {
    height: 28px;
    min-width: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
}

.update-btn {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.update-btn:hover {
    background: rgba(37, 99, 235, 0.08);
}

/* Badge when an update is available */
.update-btn.update-available {
    position: relative;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.update-btn.update-applying {
    cursor: progress;
    opacity: 0.85;
}

.update-btn.update-available::after {
    content: '';
    position: absolute;
    top: -3px;
    right: -3px;
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--primary-blue);
    box-shadow: 0 0 0 2px var(--bg-white);
}

/* Update toast */
.update-toast {
    position: fixed;
    top: 56px;
    right: 16px;
    z-index: 2000;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    color: var(--text-primary);
    font-size: 12px;
}

.graph-selection {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px;
    border-radius: 10px;
    background: rgba(239, 241, 245, 0.9);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    z-index: 4;
    backdrop-filter: blur(6px);
    font-size: 12px;
    color: var(--text-primary);
    max-width: 60%;
}

.graph-selection.hidden {
    display: none;
}

.selection-banner__close {
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 12px;
    padding: 2px 4px;
    border-radius: 6px;
}

.selection-banner__close:hover {
    color: var(--text-primary);
    background: var(--bg-muted);
}

.update-toast__text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 220px;
    font-weight: 600;
}

.update-toast__details {
    font-weight: 500;
    font-size: 11px;
    color: var(--text-secondary);
}

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

.update-toast__btn {
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.3);
    color: var(--primary-blue);
    padding: 6px 10px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 700;
}

.update-toast__btn:hover {
    background: rgba(37, 99, 235, 0.14);
}

.update-toast__close {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 28px;
    height: 28px;
    border-radius: 8px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.update-toast__close:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.search-input {
    padding: 6px 32px 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 12px;
    width: 250px;
    background: var(--bg-white);
    transition: all 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    width: 300px;
}

.search-clear {
    position: absolute;
    right: 8px;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 16px;
    padding: 4px;
    display: none;
}

.search-input:not(:placeholder-shown)+.search-clear {
    display: block;
}

/* Settings Panel */
.settings-overlay {
    position: fixed;
    inset: 0;
    background: rgba(30, 30, 46, 0.3);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 60px;
    z-index: 3000;
}

.settings-overlay.hidden {
    display: none;
}

.settings-panel {
    width: min(820px, 92vw);
    max-height: 80vh;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: linear-gradient(135deg, var(--bg-light), var(--bg-white));
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

.settings-body {
    padding: 16px 20px;
    overflow: auto;
}

.settings-tabs {
    display: flex;
    gap: 8px;
    padding: 4px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-light);
    margin-bottom: 14px;
}

.settings-tab {
    flex: 1 1 0;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-secondary);
    padding: 8px 10px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.settings-tab.active {
    background: var(--bg-white);
    color: var(--text-primary);
    border-color: var(--border-color);
    box-shadow: var(--shadow-sm);
}

.settings-tab-panel {
    display: none;
}

.settings-tab-panel.active {
    display: block;
}

.settings-section + .settings-section {
    margin-top: 18px;
}

.settings-section h3 {
    font-size: 13px;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.help-section {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 14px 16px;
}

.help-section + .help-section {
    margin-top: 14px;
}

.help-list {
    display: grid;
    gap: 8px;
    color: var(--text-primary);
    font-size: 12px;
}

.help-paragraph {
    margin-top: 10px;
    color: var(--text-primary);
    font-size: 12px;
    line-height: 1.5;
}

#about-version-running,
#about-version-latest,
#about-version-pending,
#about-restore-status {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}


.settings-label {
    display: block;
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.settings-note {
    margin-top: 6px;
    font-size: 11px;
    color: var(--text-secondary);
}

.settings-select,
.settings-input {
    width: 100%;
    padding: 6px 8px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: var(--bg-white);
    color: var(--text-primary);
    font-size: 12px;
}

.settings-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--text-primary);
}

.settings-toggle input {
    margin: 0;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px 16px;
    margin-top: 10px;
}

.settings-advanced {
    margin-top: 12px;
    border: 1px dashed var(--border-color);
    border-radius: 10px;
    padding: 10px 12px;
    background: var(--bg-light);
}

.settings-advanced summary {
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

.settings-checkboxes {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 10px;
    font-size: 12px;
    color: var(--text-secondary);
}

.settings-check input {
    margin-right: 6px;
}

.settings-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 18px;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
    gap: 8px;
}

.settings-reset-btn,
.settings-save-btn,
.settings-cancel-btn,
.settings-reset-offline-btn {
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-light);
    color: var(--text-primary);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
}

.settings-save-btn {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: #fff;
}

.settings-save-btn:hover {
    filter: brightness(1.05);
}

.settings-cancel-btn {
    background: var(--bg-white);
}

.settings-reset-btn:hover,
.settings-cancel-btn:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    background: var(--bg-white);
}

.settings-reset-offline-btn {
    background: #fff1f2;
    border-color: #fda4af;
    color: #be123c;
}

.settings-reset-offline-btn:hover {
    background: #ffe4e6;
    border-color: #fb7185;
}

.search-clear:hover {
    color: var(--primary-blue);
}

.search-status {
    font-size: 11px;
    color: var(--text-secondary);
}

/* Highlight search matches */
.highlight {
    background-color: #fef08a;
    font-weight: 600;
}

/* Loading Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

.window {
    animation: fadeIn 0.3s ease-out;
}
#loading {
    position: absolute;
    inset: 0;
    z-index: 50;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.85);
    color: var(--text-primary);
}

#loading.hidden {
    display: none;
}

.theme-mocha #loading {
    background: rgba(17, 17, 27, 0.86);
    color: var(--ctp-text);
}

@media (max-width: 1024px) {
    .tabs-bar {
        flex-wrap: wrap;
        padding: 6px 8px;
        gap: 8px;
    }

    .brand {
        flex: 1 1 100%;
        min-width: 0;
        padding: 6px 8px;
    }

    .tab-container {
        flex: 1 1 100%;
        flex-wrap: wrap;
        gap: 4px;
    }

    .tab {
        padding: 8px 12px;
        font-size: 12px;
    }

    .search-container {
        flex: 1 1 100%;
        width: 100%;
        margin: 4px 0 6px;
    }

    .search-input {
        flex: 1;
        min-width: 0;
    }
}

@media (max-width: 900px) {
    .main-layout {
        position: relative;
    }

    .sidebar,
    .properties-sidebar {
        position: absolute;
        top: 0;
        bottom: 0;
        z-index: 50;
        margin: 10px;
        width: min(85vw, 340px) !important;
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .sidebar {
        left: 0;
    }

    .properties-sidebar {
        right: 0;
    }

    .sidebar.collapsed {
        transform: translateX(-120%);
        margin-left: 0;
    }

    .properties-sidebar.collapsed {
        transform: translateX(120%);
        margin-right: 0;
    }

    #left-resizer,
    #right-resizer {
        display: none !important;
    }

    .content-area {
        margin: 10px;
    }

    .panel-reopen-btn {
        top: auto;
        bottom: 16px;
    }
}

@media (max-width: 600px) {
    .tab {
        padding: 6px 10px;
        font-size: 11px;
    }

    .content-tab {
        padding: 6px 10px;
        font-size: 11px;
    }

    .graph-toolbar {
        right: 8px;
        top: 8px;
        flex-wrap: wrap;
    }

    #minimap-wrap {
        width: 160px;
        right: 8px;
        bottom: 8px;
    }

    .sidebar,
    .properties-sidebar {
        width: min(90vw, 320px) !important;
    }
}