html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

a, .btn-link {
    color: #006bb7;
}

.btn-primary {
    color: #fff;
    background-color: #1b6ec2;
    border-color: #1861ac;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

.content {
    padding-top: 1.1rem;
    min-width: 0;
}

.page {
    display: flex;
    min-height: 100vh;
}

main {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.canvas-stage {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    height: calc(100vh - 260px);
    min-height: 240px;
    overflow: auto;
    /* Prevent any background color changes */
    background-color: #fff !important;
}

.canvas-stage:active {
    background-color: #fff !important;
}

.canvas-graph {
    display: block;
    max-width: none;
    /* Prevent Safari tap highlight and selection */
    -webkit-tap-highlight-color: rgba(0,0,0,0) !important;
    -webkit-tap-highlight-color: transparent !important;
    -webkit-user-select: none;
    user-select: none;
    /* Prevent touch actions that might trigger selection */
    touch-action: none;
    /* Prevent focus outline */
    outline: none !important;
    /* Prevent Safari from showing selection highlight */
    -webkit-appearance: none;
}

.canvas-graph:focus {
    outline: none !important;
    /* Prevent Safari blue highlight on focus */
    box-shadow: none !important;
}

.canvas-graph:active {
    /* Prevent active state styling */
    outline: none !important;
    box-shadow: none !important;
    background-color: transparent !important;
}

.canvas-graph:focus-visible {
    outline: none !important;
    box-shadow: none !important;
}

.canvas-graph * {
    /* Prevent tap highlight on all SVG children */
    -webkit-tap-highlight-color: rgba(0,0,0,0);
    -webkit-tap-highlight-color: transparent;
    /* Prevent focus on SVG elements */
    outline: none;
}

.canvas-graph *:focus {
    outline: none;
}

.canvas-graph *:active {
    outline: none;
}

.canvas-footer {
    position: sticky;
    bottom: 0;
    background: #fff;
    padding: 0.75rem 0;
    border-top: 1px solid #dee2e6;
}

/* One row: the left group keeps its width, the right group takes the rest and
   wraps inside itself, so a button that appears or disappears never moves the row. */
.canvas-footer-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem 1rem;
}

.canvas-footer-left {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 1rem;
}

.canvas-footer-right {
    display: flex;
    flex: 1 1 auto;
    min-width: 0;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 0.5rem;
}

.canvas-toolbar {
    position: sticky;
    top: 0;
    z-index: 10;
}

.canvas-toolbar .dropdown-menu {
    max-height: 400px;
    overflow-y: auto;
}


/* Prevent selection and highlighting during canvas drag (Safari fix) */
body.canvas-dragging,
body.canvas-dragging * {
    user-select: none !important;
    -webkit-user-select: none !important;
    -moz-user-select: none !important;
    -ms-user-select: none !important;
    -webkit-touch-callout: none !important;
    -webkit-tap-highlight-color: transparent !important;
}

/* Prevent Safari from applying any background during drag */
body.canvas-dragging {
    background-color: #fff !important;
}

body.canvas-dragging .canvas-stage {
    background-color: #fff !important;
}

body.canvas-dragging .canvas-graph {
    background-color: transparent !important;
}

/* Tree View Styles */
.tree-view {
    max-width: 100%;
    overflow-x: auto;
}

.tree-node-row {
    transition: background-color 0.15s ease;
}

.tree-node-row:hover {
    background-color: #f8f9fa;
}

.tree-node-reference {
    opacity: 0.7;
}

.tree-node-highlight {
    animation: highlight-pulse 2s ease-out;
}

@keyframes highlight-pulse {
    0% {
        background-color: #fff3cd;
        transform: scale(1.02);
    }
    50% {
        background-color: #fff3cd;
    }
    100% {
        background-color: transparent;
        transform: scale(1);
    }
}

.tree-node-row .btn-link {
    color: #6c757d;
    text-decoration: none;
}

.tree-node-row .btn-link:hover {
    color: #495057;
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .tree-node-row {
        font-size: 0.9rem;
    }
    
    .tree-node-row .small {
        font-size: 0.75rem;
    }
}

/* The Status button in the canvas footer: white, with a border in the worst level's colour. */
.btn-status {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: #fff;
    color: #212529;
    border: 2px solid #6c757d;
}

.btn-status:hover,
.btn-status:focus-visible {
    background: #f8f9fa;
    color: #212529;
}

.btn-status.status-ok { border-color: #198754; }
.btn-status.status-warning { border-color: #ffc107; }
.btn-status.status-error { border-color: #dc3545; }