/* Main application styles for Slim Graph */
/* Matching Slim Gantt design system */

/* Reset and base styles */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

/* Remove spinner from number inputs */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
}

/* Table styles */
.sortable-header {
    transition: background-color 0.2s;
}

.sortable-header:hover {
    background-color: #e5e7eb;
    cursor: pointer;
}

/* Graph node styles */
.graph-node {
    transition: opacity 0.2s;
}

.graph-node:hover {
    opacity: 0.8;
    cursor: pointer;
}

/* Custom scrollbar styles */
.custom-scrollbar::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.custom-scrollbar::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Animation for processing state */
@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
    100% {
        opacity: 1;
    }
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Ensure full height for the app */
#root {
    height: 100vh;
}

/* Modal overlay styles */
.modal-overlay {
    backdrop-filter: blur(4px);
}

/* Resource/Group color coding */
.resource-color-1 { background-color: #3B82F6; } /* Blue */
.resource-color-2 { background-color: #10B981; } /* Green */
.resource-color-3 { background-color: #F59E0B; } /* Orange */
.resource-color-4 { background-color: #8B5CF6; } /* Purple */
.resource-color-5 { background-color: #EC4899; } /* Pink */
.resource-color-6 { background-color: #14B8A6; } /* Teal */
.resource-color-7 { background-color: #F97316; } /* Deep Orange */
.resource-color-8 { background-color: #06B6D4; } /* Cyan */

/* Cytoscape graph container */
#mermaid-container {
    width: 100%;
    height: 100%;
    position: relative;
    user-select: none;
    overflow: hidden;
    background-color: #ffffff;
}

/* Cytoscape canvas styling - Cytoscape handles its own internal rendering */
#mermaid-container canvas {
    outline: none;
}

/* Table cell error states */
.cell-error {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
}

.cell-warning {
    background-color: #fffbeb;
    border: 1px solid #fde68a;
}

/* Empty state */
.empty-state {
    color: #9ca3af;
}

/* Tooltip */
.graph-tooltip {
    position: fixed;
    background: white;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    padding: 8px 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    font-size: 12px;
    z-index: 1000;
    pointer-events: none;
}

.graph-tooltip-header {
    font-weight: 600;
    margin-bottom: 4px;
    color: #111827;
}

.graph-tooltip-content {
    color: #4b5563;
}

/* Button states */
.btn-disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Split pane resize handle (future enhancement) */
.resize-handle {
    width: 4px;
    background-color: #e5e7eb;
    cursor: col-resize;
    transition: background-color 0.2s;
}

.resize-handle:hover {
    background-color: #3b82f6;
}

/* Loading spinner */
.spinner {
    border: 2px solid #f3f3f3;
    border-top: 2px solid #3b82f6;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Text overflow handling for table inputs */
.table-input {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.table-input:focus {
    /* Show full text when editing */
    overflow: visible;
    white-space: normal;
}

/* Make table inputs fill their cells for visual consistency */
table .table-input {
    width: 100%;
    box-sizing: border-box;
}

/* Table layout: fixed for consistent column widths via colgroup */
table {
    table-layout: fixed;
    width: auto;
}

/* Table cells use overflow hidden to prevent content from breaking layout */
table td {
    overflow: hidden;
}

/* Flex containers should not force column width */
table td > div {
    display: inline-flex !important;
    max-width: 100%;
    overflow: hidden;
}

/* Buttons in table cells should be compact */
table td button {
    padding: 0.125rem !important;
    min-width: 0 !important;
    flex-shrink: 0;
}

/* ==================== */
/* Accessibility Styles */
/* ==================== */

/* Focus indicators for all interactive elements */
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[role="button"]:focus-visible {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

/* High contrast focus for icon buttons */
.icon-button:focus-visible {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Skip link for keyboard navigation */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #3b82f6;
    color: white;
    padding: 8px 16px;
    z-index: 100;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* Screen reader only text (visually hidden but accessible) */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .sortable-header:hover {
        background-color: #000;
        color: #fff;
    }

    button:focus-visible {
        outline: 3px solid currentColor;
    }
}

/* Link mode indicator for keyboard users */
.link-mode-active {
    position: relative;
}

.link-mode-active::after {
    content: "Press Enter to select target, Escape to cancel";
    position: absolute;
    bottom: -24px;
    left: 0;
    font-size: 11px;
    color: #6b7280;
    white-space: nowrap;
}