/* ==========================================================================
   1. VARIABLES & THEME CONFIGURATION
   ========================================================================== */
:root {
    --primary: #b71918;
    --secondary: #9d9d9d;
    --text-dark: #111;
    --bg-light: #f3f3f3;
    --bg-white: #fff;
    --bg-lgray: #ddd;
    --footer-dark: #9d9d9d;
    --bg-graph: #e8e8e8;
    --ux-background: #ffffff;
    --ux-foreground: #020817;
    --ux-muted: #f1f5f9;
    --ux-muted-foreground: #64748b;
    --ux-border: #e2e8f0;
    --ux-input: #e2e8f0;
    --ux-primary: #0f172a;
    --ux-primary-foreground: #f8fafc;
    --ux-secondary: #f1f5f9;
    --ux-destructive: #ef4444;
    --ux-background-destructive: #fee2e2;
    --ux-radius: 0.5rem;
    --h-unit: 2.25rem;
}

/* ==========================================================================
   2. GLOBAL RESET & BASE STYLES
   ========================================================================== */
body {
    margin: 0;
    padding: 0;
    color: var(--text-dark);
    font-family: 'Inter', sans-serif;
    background: var(--bg-white);
}

/* ==========================================================================
   3. BASE FORM COMPONENTS (Buttons, Inputs, Selects)
   ========================================================================== */
.btn,
.input,
.textarea {
    height: var(--h-unit);
    border-radius: var(--ux-radius);
    border: 1px solid var(--ux-border);
    font-size: 0.875rem;
    font-family: inherit;
    padding: 0 0.75rem;
    transition: all 0.2s;
    background: var(--ux-background);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    cursor: pointer;
    gap: 8px;
}

.btn-primary {
    background: var(--ux-primary);
    color: var(--ux-primary-foreground);
    border-color: var(--ux-primary);
}

.btn-primary:hover {
    background: var(--ux-foreground);
    color: var(--ux-primary-foreground);
    border-color: var(--ux-primary);
}

.btn-secondary {
    background: var(--ux-secondary);
    border-color: var(--secondary);
}

.btn-secondary:hover {
    background: var(--ux-white);
    border-color: var(--secondary);
}

.btn-outline {
    border: 1px solid var(--ux-border);
    color: var(--ux-primary);
}

.btn-outline:hover {
    background: var(--ux-muted);
}

.textarea {
    height: auto;
    padding: 0.75rem;
    min-height: 100px;
    min-width: stretch;
    max-width: min-content;
}

select.input {
    cursor: pointer;
    padding-right: 2.5rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    appearance: none;
    -webkit-appearance: none;
}

.radio-label {
    font-size: 0.875rem;
    margin-right: 15px;
}

.radio-label-attack {
    border-bottom: solid #b8263c;
}

.radio-label-support {
    border-bottom: dashed #1976d2;
}

.strength-area {
    background: var(--ux-secondary);
}

/* Validation States */
.mandatory {
    color: var(--ux-destructive);
}

.error-state,
select.input.error-state {
    border-color: var(--ux-destructive) !important;
}

.error-msg {
    font-size: 0.75rem;
    color: var(--ux-destructive);
    margin-top: 4px;
    font-weight: 500;
    background-color: var(--ux-background-destructive);
    border-radius: var(--ux-radius);
    padding: 0.25rem 0.5rem;
    white-space: pre-line;
}

.radio-box {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 0 10px;
    border-radius: var(--ux-radius);
    height: var(--h-unit);
    border: 1px solid transparent;
}

.radio-box.error {
    border: 1px solid var(--ux-destructive);
    background: rgba(239, 68, 68, 0.02);
}

.btn-group {
    display: inline-flex;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-group .btn {
    border-radius: 0;
    border-right: none;
}

.btn-group .btn:first-child {
    border-top-left-radius: var(--ux-radius);
    border-bottom-left-radius: var(--ux-radius);
}

.btn-group .btn:last-child {
    border-top-right-radius: var(--ux-radius);
    border-bottom-right-radius: var(--ux-radius);
    border-right: 1px solid var(--ux-border);
}

/* ==========================================================================
   4. INTERACTIVE UI (Menus, Bookmarks, Dialogs)
   ========================================================================= */
.contextMenu {
    position: fixed;
    z-index: 1000;
    min-width: 160px;
    background: var(--ux-background);
    border: 1px solid var(--ux-border);
    border-radius: calc(var(--ux-radius) - 2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    padding: 4px;
    display: none;
    animation: menuFade 0.1s ease-out;
}

.context-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    font-size: 0.875rem;
    border-radius: 4px;
    cursor: pointer;
}

.context-item:hover {
    background: var(--ux-muted);
}

.context-item.destructive:hover {
    background: var(--ux-background-destructive);
    color: var(--ux-destructive);
}

.context-item.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
    filter: grayscale(1);
}

.context-item.disabled:hover {
    background: transparent !important;
}

@keyframes menuFade {
    from {
        opacity: 0;
        transform: scale(0.98);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Labeling Bookmarks */
.bookmark-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--h-unit);
    padding: 0 1rem;
    border: 1px solid var(--ux-border);
    border-bottom: none;
    cursor: pointer;
    font-size: 0.875rem;
    transition: background 0.2s;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    gap: 12px;
}

.bookmark-text-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.bookmark-label {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 600;
}

.bookmark-item:first-child {
    border-top-left-radius: var(--ux-radius);
    border-top-right-radius: var(--ux-radius);
}

.bookmark-item:last-child {
    border-bottom-left-radius: var(--ux-radius);
    border-bottom-right-radius: var(--ux-radius);
    border-bottom: 1px solid var(--ux-border);
}

.bookmark-item input {
    display: none;
}

.bookmark-item:has(input:checked) {
    background: var(--ux-secondary);
    z-index: 1;
    border-color: #cbd5e1;
}

.bookmark-item:has(input:checked) svg {
    fill: var(--ux-primary);
    stroke: var(--ux-primary);
}

.bookmark-item svg {
    width: 14px;
    height: 14px;
    fill: none;
    stroke: var(--ux-muted-foreground);
    stroke-width: 2;
}

.bookmark-item span {
    display: block;
    width: 100%;
    align-items: center;
    gap: 10px;
}

/* Disabled States */
.btn:disabled,
.input:disabled,
.textarea:disabled,
.select:disabled,
.bookmark-check:disabled+span {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
    background-color: var(--muted) !important;
    border-color: var(--border) !important;
    color: var(--muted-foreground) !important;
}

.btn-primary:disabled {
    background-color: var(--ux-primary) !important;
    opacity: 0.6;
    color: var(--ux-primary-foreground) !important;
}

.bookmark-item:has(input:disabled) {
    cursor: not-allowed;
    background-color: #f8fafc;
    opacity: 0.6;
}

/* Modal / Dialog */
.dialog-overlay {
    position: fixed;
    inset: 0;
    z-index: 50;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
}

.dialog-content {
    position: relative;
    width: 450px;
    background: var(--ux-background);
    border-radius: var(--ux-radius);
    border: 1px solid var(--ux-border);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.dialog-close-x {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    opacity: 0.5;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dialog-close-x:hover {
    opacity: 1;
    background: var(--ux-muted);
    border-radius: 4px;
}

.dialog-header {
    padding: 1.5rem;
    text-align: left;
    padding-right: 4rem;
}

.dialog-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
    line-height: 1.2;
}

.dialog-description {
    font-size: 0.875rem;
    color: var(--ux-muted-foreground);
    margin-top: 6px;
}

.dialog-body {
    padding: 0 1.5rem 1.5rem;
}

.dialog-footer {
    padding: 1rem 1.5rem;
    background: var(--ux-muted);
    border-top: 1px solid var(--ux-border);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* ==========================================================================
   5. LAYOUT & SIDEBAR COMPONENTS
   ========================================================================== */
.section-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Badges & Tooltips */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-success {
    background: #dcfce7;
    color: #166534;
}

.badge-semantics {
    background: var(--primary);
    color: var(--bg-white);
    margin-left: auto;
}

.badge-outline {
    border: 1px solid var(--ux-border);
    color: var(--ux-muted-foreground);
}

.tooltip {
    position: relative;
    cursor: help;
    color: var(--ux-muted-foreground);
    text-decoration: underline dotted;
}

.tooltip:hover::after {
    content: attr(data-tip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--ux-primary);
    color: white;
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    white-space: nowrap;
    z-index: 10;
}

.separator {
    height: 1px;
    background: var(--ux-border);
    margin: 2rem 0;
}

.spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--bg-white);
    animation: spin 0.8s linear infinite;
}

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

.input-stack {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 20px;
}

.input-line {
    padding-top: 10px;
}

.label-sm {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--ux-muted-foreground);
}

/* ==========================================================================
   6. HEADER & MAIN NAVIGATION
   ========================================================================== */
.header {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    background: var(--primary);
    color: var(--bg-white);
    height: 44px;
    padding: 0 22px;
}

.header-left {
    display: flex;
    align-items: center;
}

.header-left .logo {
    max-height: 30px;
    width: auto;
    margin-right: 30px;
}

.header-left span {
    font-size: 1.2em;
    font-weight: 600;
    letter-spacing: 1px;
    line-height: 44px;
}

.main-nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    gap: 30px;
}

.main-nav a {
    text-decoration: none;
    color: var(--bg-lgray);
    font-weight: 500;
}

.main-nav a.active {
    color: var(--bg-white);
    border-bottom: 1px solid var(--bg-lgray);
}

.header-right {
    margin-left: auto;
}

.header-right .logo {
    max-height: 30px;
    width: auto;
    margin-left: 14px;
    vertical-align: middle;
}

/* ==========================================================================
   7. WORKAREA & SIDEBAR LAYOUT
   ========================================================================== */
.main {
    display: flex;
    height: calc(100vh - 44px);
    width: 100vw;
    min-width: 900px;
    overflow: hidden;
}

.workarea {
    flex: 1 1 0;
    background: var(--bg-white);
    box-sizing: border-box;
    display: flex;
    align-items: stretch;
    justify-content: center;
}

.sidebar {
    width: 400px;
    min-width: 400px;
    background: var(--bg-white);
    display: flex;
    flex-direction: column;
    height: 100%;
    box-sizing: border-box;
    border-left: 1px solid var(--secondary);
    overflow: hidden;
}

.project-bar {
    display: flex;
    gap: 8px;
    align-items: center;
    padding: 12px 16px;
    background: #fafafa;
    border-bottom: 2px solid #e0e0e0;
}

#project-name {
    width: 170px;
}

.sidebar-commands {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
}

.section {
    padding: 18px 20px;
    border-bottom: 1px solid #e5e5e5;
}

.compute-section {
    background: linear-gradient(to bottom, #fef5f6 0%, var(--bg-white) 100%);
    border-bottom: 0;
}

.sidebar-footer {
    background: var(--footer-dark);
    color: var(--bg-white);
    padding: 14px 16px;
    font-size: 0.45em;
    letter-spacing: 0.5px;
}

/* ==========================================================================
   8. EXTERNAL PAGES (People & Publications)
   ========================================================================== */
#people-content,
#publications-content {
    padding: 3rem;
}

.page-area {
    width: 100%;
    background: var(--bg-light);
    display: flex;
    flex-direction: column;
    height: 100%;
    box-sizing: border-box;
    border-left: 1px solid var(--secondary);
    overflow-y: auto;
}

/* People Page Specifics */
.people-section {
    margin-bottom: 24px;
}

.people-section h2 {
    margin: 16px 0 10px 0;
    font-size: 1.1em;
    color: var(--primary);
}

.people-table {
    border-collapse: collapse;
    width: 100%;
}

.people-row {
    display: flex;
    padding: 8px 6px;
    border-bottom: 1px solid var(--bg-lgray);
}

.people-name {
    flex: 1 1 50%;
    padding-right: 12px;
}

.people-info {
    flex: 1 1 50%;
    font-size: 0.95em;
}

.people-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.person-card {
    width: 155px;
    text-align: center;
    font-size: 0.95em;
    color: var(--text-dark);
}

.person-photo {
    width: 100%;
    max-width: 100px;
    height: auto;
    border-radius: 50%;
    border: 2px solid var(--bg-lgray);
    margin-bottom: 6px;
    background: var(--bg-white);
}

.person-name {
    font-weight: 500;
    padding-bottom: 0.75rem;
}

.person-email a {
    font-size: x-large;
    text-decoration: none;
}

/* Publications Page Specifics */
.publications-list li {
    margin-bottom: 0.5rem;
}

/* ==========================================================================
   9. CYTOSCAPE GRAPH & NODE LABELS
   ========================================================================== */
#cy-container {
    position: relative;
    width: 100%;
    height: 100%;
}

#cy,
#cy-preview-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
}

#cy {
    z-index: 1;
    background: var(--bg-graph);
    cursor: default;
}

#cy-preview-canvas {
    z-index: 2;
    pointer-events: none;
}

#cy-empty-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--ux-muted-foreground);
    font-size: 0.875rem;
    font-weight: 500;
    pointer-events: none;
    z-index: 5;
    display: none;
    text-align: center;
    opacity: 0.7;
}

/* Cytoscape HTML Labels */
.node-html-label {
    position: absolute;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 10;
}

.node-html-label .node-label-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: var(--bg-white);
    pointer-events: none;
}

.node-label-name {
    font-size: 14px;
    font-weight: 700;
    line-height: 1.1;
}

.node-label-weight {
    font-size: 8px;
    font-weight: 400;
    margin-top: 2px;
}

.node-label-strength {
    font-size: 8px;
    font-weight: 400;
    margin-bottom: -11px;
    transform: translateY(-18px);
    color: var(--text-dark);
    background-color: #ffffffcc;
    padding: 0 2px;
    border-radius: 3px;
}

/* Tooltips & Misc Graph Styles */
.cy-tooltip {
    position: absolute;
    background: var(--ux-primary);
    color: var(--ux-background);
    padding: 6px 10px;
    border-radius: 6px;
    pointer-events: none;
    white-space: nowrap;
    z-index: 1000;
    font-size: 0.75rem;
}

.edge.preview {
    stroke-dasharray: 6 4;
}

node.pseudo {
    display: none;
}