body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, Arial, sans-serif;
}

.driver-web-shell {
    width: min(1500px, calc(100vw - 24px));
    margin: 0 auto;
    padding: 18px 0;
}

.driver-web-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 16px;
    margin-bottom: 14px;
}

.driver-web-header h1 {
    margin: 0;
    font-size: 32px;
    font-weight: 800;
}

.driver-web-header p {
    margin: 4px 0 0;
    color: #6c757d;
}

.home-link,
#reset-graph,
.control-link {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 8px 14px;
    border: 0;
    border-radius: 6px;
    background: #333;
    color: #fff;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

.home-link:hover,
#reset-graph:hover,
.control-link:hover {
    background: #1e1e1e;
    color: #fff;
    text-decoration: none;
}

.driver-web-controls {
    display: grid;
    grid-template-columns: minmax(260px, 1.4fr) repeat(3, minmax(150px, 0.8fr)) auto auto;
    gap: 12px;
    align-items: stretch;
    padding: 14px;
    margin-bottom: 14px;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    background: #fff;
}

.path-web-controls {
    grid-template-columns: repeat(2, minmax(220px, 1.4fr)) repeat(2, minmax(110px, 0.55fr)) auto;
}

.mobile-settings-toggle {
    display: none;
    width: 100%;
    margin-bottom: 16px;
    padding: 12px 20px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 700;
    color: #ffffff;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    transition: all 0.2s ease;
}

.mobile-settings-toggle:active {
    transform: scale(0.98);
}

.mobile-settings-toggle:hover {
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
    background: linear-gradient(135deg, #1d4ed8, #1e40af);
}

.control-group {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    gap: 6px;
}

.control-group label,
.toggle-control {
    font-size: 13px;
    font-weight: 800;
    color: #555;
}

.control-help {
    color: #6c757d;
    font-size: 12px;
    line-height: 1.25;
}

.control-group select,
.control-group input[type="range"] {
    width: 100%;
}

.control-group select {
    min-height: 38px;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    padding: 6px 8px;
}

.toggle-control {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 38px;
    white-space: nowrap;
}

.driver-web-main {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 14px;
}

.graph-panel,
.info-card {
    border: 1px solid #dee2e6;
    border-radius: 8px;
    background: #fff;
}

.graph-panel {
    position: relative;
    min-height: 680px;
    overflow: hidden;
}

#driver-web-graph {
    width: 100%;
    height: 75vh;
    min-height: 680px;
}

#graph-loading {
    position: absolute;
    inset: 0;
    /* display is toggled by JS */
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.78);
    color: #555;
    font-weight: 800;
    z-index: 50;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid #dee2e6;
    border-top-color: #3b82f6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.info-panel {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.info-card {
    padding: 16px;
}

.info-card h2 {
    margin: 0 0 12px;
    font-size: 18px;
    font-weight: 800;
}

.floating-selection-card {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 320px;
    max-width: calc(100% - 32px);
    z-index: 20;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    display: none; /* hidden by default */
}

.floating-network-card {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 10;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 8px 12px;
    display: flex;
    gap: 16px;
    font-size: 13px;
    font-weight: 700;
    color: #555;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.floating-network-card span {
    color: #1e293b;
    font-weight: 800;
}

.driver-web-main.no-sidebar {
    grid-template-columns: 1fr;
}

.metric-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.metric-grid div {
    padding: 12px;
    border-radius: 6px;
    background: #f1f5f9;
}

.metric-grid span {
    display: block;
    font-size: 28px;
    font-weight: 800;
}

.metric-grid small,
.muted {
    color: #6c757d;
}

.selection-title {
    font-weight: 800;
    margin-bottom: 8px;
}

.focus-note {
    display: inline-flex;
    margin: 0 0 8px;
    padding: 4px 8px;
    border-radius: 999px;
    background: #fef3c7;
    color: #92400e;
    font-size: 12px;
    font-weight: 800;
}

.selection-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.selection-actions a {
    padding: 7px 10px;
    border-radius: 6px;
    background: #2563eb;
    color: #ffffff !important;
    font-size: 13px;
    font-weight: 800;
    text-decoration: none;
}

.selection-actions a:hover {
    background: #1d4ed8;
    color: #fff;
    text-decoration: none;
}

.path-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 380px;
    overflow-y: auto;
}

.path-list-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e2e8f0;
    font-size: 13px;
}

.path-list-item span {
    color: #6c757d;
    line-height: 1.35;
}

@media (max-width: 1100px) {
    .mobile-settings-toggle {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 8px;
    }

    .driver-web-controls {
        display: none;
    }

    .driver-web-controls.expanded {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }

    .driver-web-main {
        grid-template-columns: 1fr;
    }

    .driver-web-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .graph-panel,
    #driver-web-graph {
        min-height: 560px;
        height: 68vh;
    }
}

/* Dark Mode Overrides */
html.dark body,
body.dark-mode {
    background: #0f172a !important;
    color: #e2e8f0;
}

html.dark .driver-web-header p,
.dark-mode .driver-web-header p {
    color: #94a3b8;
}

html.dark .driver-web-controls,
.dark-mode .driver-web-controls,
html.dark .info-card,
.dark-mode .info-card {
    background: #1e293b;
    border-color: #334155;
    color: #e2e8f0;
}

html.dark .graph-panel,
.dark-mode .graph-panel,
html.dark #driver-web-graph,
.dark-mode #driver-web-graph,
html.dark #mynetwork,
.dark-mode #mynetwork {
    background-color: #0f172a;
    border-color: #334155;
}

html.dark .mobile-settings-toggle,
.dark-mode .mobile-settings-toggle {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

html.dark .mobile-settings-toggle:hover,
.dark-mode .mobile-settings-toggle:hover {
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
}

html.dark .floating-selection-card,
.dark-mode .floating-selection-card {
    background: #1e293b;
    border-color: #334155;
    color: #f8fafc;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

html.dark .floating-network-card,
.dark-mode .floating-network-card {
    background: rgba(30, 41, 59, 0.95);
    border-color: #334155;
    color: #94a3b8;
}

html.dark .floating-network-card span,
.dark-mode .floating-network-card span {
    color: #f8fafc;
}

html.dark .control-group label,
.dark-mode .control-group label,
html.dark .toggle-control,
.dark-mode .toggle-control {
    color: #e2e8f0;
}

html.dark .control-help,
.dark-mode .control-help {
    color: #94a3b8;
}

html.dark .control-group select,
.dark-mode .control-group select {
    background: #0f172a;
    color: #e2e8f0;
    border-color: #334155;
}

html.dark .control-group input[type="range"],
.dark-mode .control-group input[type="range"] {
    accent-color: #3b82f6;
}

html.dark #graph-loading,
.dark-mode #graph-loading {
    background: rgba(15, 23, 42, 0.92);
    color: #e2e8f0;
}

html.dark .spinner,
.dark-mode .spinner {
    border-color: #334155;
    border-top-color: #60a5fa;
}

html.dark .metric-grid div,
.dark-mode .metric-grid div {
    background: #0f172a;
    color: #e2e8f0;
}

html.dark .metric-grid small,
.dark-mode .metric-grid small,
html.dark .muted,
.dark-mode .muted {
    color: #94a3b8;
}

html.dark .focus-note,
.dark-mode .focus-note {
    background: #78350f;
    color: #fef3c7;
}

html.dark .path-list-item,
.dark-mode .path-list-item {
    border-color: #334155;
}

html.dark .path-list-item span,
.dark-mode .path-list-item span {
    color: #94a3b8;
}

html.dark .watermark,
.dark-mode .watermark {
    color: rgba(255, 255, 255, 0.05);
}

/* ==========================================================
   Vis-Network Navigation Controls - Combo 1: Slate & Monochrome
   ========================================================== */

/* Base button styling (Light Mode) */
.vis-network .vis-navigation .vis-button {
    box-sizing: border-box !important;
    width: 34px !important;
    height: 34px !important;
    border-radius: 50% !important;
    background-color: #ffffff !important;
    border: 1px solid #e2e8f0 !important;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04) !important;
    background-size: 16px 16px !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    cursor: pointer !important;
    transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease !important;
}

.vis-network .vis-navigation .vis-button:hover {
    background-color: #f8fafc !important;
    border-color: #cbd5e1 !important;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12) !important;
    transform: scale(1.08) !important;
}

.vis-network .vis-navigation .vis-button:active {
    transform: scale(0.94) !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08) !important;
}

/* Light Mode Vector SVG Icons (#334155 - Slate) */
.vis-network .vis-navigation .vis-button.vis-up {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23334155' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='12' y1='19' x2='12' y2='5'%3E%3C/line%3E%3Cpolyline points='5 12 12 5 19 12'%3E%3C/polyline%3E%3C/svg%3E") !important;
}

.vis-network .vis-navigation .vis-button.vis-down {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23334155' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='12' y1='5' x2='12' y2='19'%3E%3C/line%3E%3Cpolyline points='19 12 12 19 5 12'%3E%3C/polyline%3E%3C/svg%3E") !important;
}

.vis-network .vis-navigation .vis-button.vis-left {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23334155' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='19' y1='12' x2='5' y2='12'%3E%3C/line%3E%3Cpolyline points='12 19 5 12 12 5'%3E%3C/polyline%3E%3C/svg%3E") !important;
}

.vis-network .vis-navigation .vis-button.vis-right {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23334155' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='5' y1='12' x2='19' y2='12'%3E%3C/line%3E%3Cpolyline points='12 5 19 12 12 19'%3E%3C/polyline%3E%3C/svg%3E") !important;
}

.vis-network .vis-navigation .vis-button.vis-zoomIn {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23334155' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='12' y1='5' x2='12' y2='19'%3E%3C/line%3E%3Cline x1='5' y1='12' x2='19' y2='12'%3E%3C/line%3E%3C/svg%3E") !important;
}

.vis-network .vis-navigation .vis-button.vis-zoomOut {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23334155' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='5' y1='12' x2='19' y2='12'%3E%3C/line%3E%3C/svg%3E") !important;
}

.vis-network .vis-navigation .vis-button.vis-zoomExtends {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23334155' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='15 3 21 3 21 9'%3E%3C/polyline%3E%3Cpolyline points='9 21 3 21 3 15'%3E%3C/polyline%3E%3Cline x1='21' y1='3' x2='14' y2='10'%3E%3C/line%3E%3Cline x1='3' y1='21' x2='10' y2='14'%3E%3C/line%3E%3C/svg%3E") !important;
}

/* Dark Mode Base Button */
html.dark .vis-network .vis-navigation .vis-button,
.dark-mode .vis-network .vis-navigation .vis-button {
    filter: none !important;
    background-color: rgba(30, 41, 59, 0.88) !important;
    border: 1px solid #334155 !important;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 0, 0, 0.2) !important;
    backdrop-filter: blur(6px) !important;
}

html.dark .vis-network .vis-navigation .vis-button:hover,
.dark-mode .vis-network .vis-navigation .vis-button:hover {
    filter: none !important;
    background-color: #334155 !important;
    border-color: #475569 !important;
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.5) !important;
    transform: scale(1.08) !important;
}

html.dark .vis-network .vis-navigation .vis-button:active,
.dark-mode .vis-network .vis-navigation .vis-button:active {
    filter: none !important;
    transform: scale(0.94) !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3) !important;
}

/* Dark Mode Vector SVG Icons (#f1f5f9 - Silver/White) */
html.dark .vis-network .vis-navigation .vis-button.vis-up,
.dark-mode .vis-network .vis-navigation .vis-button.vis-up {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f1f5f9' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='12' y1='19' x2='12' y2='5'%3E%3C/line%3E%3Cpolyline points='5 12 12 5 19 12'%3E%3C/polyline%3E%3C/svg%3E") !important;
}

html.dark .vis-network .vis-navigation .vis-button.vis-down,
.dark-mode .vis-network .vis-navigation .vis-button.vis-down {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f1f5f9' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='12' y1='5' x2='12' y2='19'%3E%3C/line%3E%3Cpolyline points='19 12 12 19 5 12'%3E%3C/polyline%3E%3C/svg%3E") !important;
}

html.dark .vis-network .vis-navigation .vis-button.vis-left,
.dark-mode .vis-network .vis-navigation .vis-button.vis-left {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f1f5f9' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='19' y1='12' x2='5' y2='12'%3E%3C/line%3E%3Cpolyline points='12 19 5 12 12 5'%3E%3C/polyline%3E%3C/svg%3E") !important;
}

html.dark .vis-network .vis-navigation .vis-button.vis-right,
.dark-mode .vis-network .vis-navigation .vis-button.vis-right {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f1f5f9' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='5' y1='12' x2='19' y2='12'%3E%3C/line%3E%3Cpolyline points='12 5 19 12 12 19'%3E%3C/polyline%3E%3C/svg%3E") !important;
}

html.dark .vis-network .vis-navigation .vis-button.vis-zoomIn,
.dark-mode .vis-network .vis-navigation .vis-button.vis-zoomIn {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f1f5f9' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='12' y1='5' x2='12' y2='19'%3E%3C/line%3E%3Cline x1='5' y1='12' x2='19' y2='12'%3E%3C/line%3E%3C/svg%3E") !important;
}

html.dark .vis-network .vis-navigation .vis-button.vis-zoomOut,
.dark-mode .vis-network .vis-navigation .vis-button.vis-zoomOut {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f1f5f9' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='5' y1='12' x2='19' y2='12'%3E%3C/line%3E%3C/svg%3E") !important;
}

html.dark .vis-network .vis-navigation .vis-button.vis-zoomExtends,
.dark-mode .vis-network .vis-navigation .vis-button.vis-zoomExtends {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f1f5f9' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='15 3 21 3 21 9'%3E%3C/polyline%3E%3Cpolyline points='9 21 3 21 3 15'%3E%3C/polyline%3E%3Cline x1='21' y1='3' x2='14' y2='10'%3E%3C/line%3E%3Cline x1='3' y1='21' x2='10' y2='14'%3E%3C/line%3E%3C/svg%3E") !important;
}

/* ==========================================================
   Welcome State Cards (Focus & Pathfinder)
   ========================================================== */
.web-welcome-card {
    max-width: 540px;
    margin: 48px auto;
    padding: 28px 24px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
}

.welcome-header {
    margin-bottom: 20px;
}

.welcome-title-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.welcome-title-row h2 {
    margin: 0;
    font-size: 22px;
    font-weight: 800;
    color: #1e293b;
}

.welcome-subtitle {
    margin: 0;
    font-size: 14px;
    color: #64748b;
    line-height: 1.5;
}

.welcome-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.welcome-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.welcome-form label {
    font-size: 13px;
    font-weight: 700;
    color: #334155;
}

.welcome-submit-btn {
    margin-top: 6px;
    width: 100%;
    min-height: 42px;
    padding: 10px 16px;
    background-color: #2563eb;
    color: #ffffff;
    font-size: 15px;
    font-weight: 700;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
    transition: background-color 0.15s ease, opacity 0.15s ease, transform 0.15s ease;
}

.welcome-submit-btn:hover:not(:disabled) {
    background-color: #1d4ed8;
    transform: translateY(-1px);
}

.welcome-submit-btn:active:not(:disabled) {
    transform: translateY(0);
}

.welcome-submit-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Dark Mode Overrides for Welcome Card */
html.dark .web-welcome-card,
body.dark-mode .web-welcome-card {
    background: #1e293b;
    border-color: #334155;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

html.dark .welcome-title-row h2,
body.dark-mode .welcome-title-row h2 {
    color: #f8fafc;
}

html.dark .welcome-subtitle,
body.dark-mode .welcome-subtitle {
    color: #94a3b8;
}

html.dark .welcome-form label,
body.dark-mode .welcome-form label {
    color: #cbd5e1;
}