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

:root {
    /* Primary Palette */
    --bg: rgb(248, 238, 222);           /* Cream */
    --surface: #ffffff;                 /* Pure White */
    --surface-hover: #f5f5f5;
    --border: rgba(58, 57, 58, 0.2);    /* Charcoal with low opacity */
    
    --text: rgb(58, 57, 58);            /* Charcoal */
    --text-muted: rgba(58, 57, 58, 0.7);
    
    --accent: rgb(236, 103, 54);        /* Orange */
    --accent-hover: #d1562b;
    --accent-glow: rgba(236, 103, 54, 0.1);
    
    --success: #16a34a;
    --warning: #d97706;
    --error: #dc2626;
    --radius: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

#app {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--accent); /* Updated to Orange */
}

.subtitle {
    color: var(--text-muted);
    margin-top: 0.4rem;
    font-size: 0.95rem;
}

/* Search panel */
.search-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    box-shadow: 0 4px 15px rgba(58, 57, 58, 0.05);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.input-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.autocomplete-wrapper {
    position: relative;
}

input[type="text"] {
    width: 100%;
    padding: 0.6rem 0.8rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.95rem;
    outline: none;
    transition: all 0.15s;
}

input[type="text"]:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

input[type="text"].selected {
    border-color: var(--success);
    background: rgba(22, 163, 74, 0.05);
}

.autocomplete-list {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-top: 4px;
    max-height: 200px;
    overflow-y: auto;
    z-index: 100;
    display: none;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.autocomplete-list.visible {
    display: block;
}

.autocomplete-item {
    padding: 0.5rem 0.8rem;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.1s;
}

.autocomplete-item:hover,
.autocomplete-item.active {
    background: var(--surface-hover);
}

.autocomplete-item .slug {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-left: 0.4rem;
}

.filters {
    grid-column: 1 / -1;
    display: flex;
    gap: 2rem;
    align-items: start;
    flex-wrap: wrap;
}

fieldset {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.5rem 0.8rem;
    display: flex;
    gap: 1rem;
}

fieldset legend {
    font-size: 0.8rem;
    color: var(--text-muted);
    padding: 0 0.3rem;
    font-weight: 600;
}

fieldset label {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    cursor: pointer;
}

.depth-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.depth-control label {
    font-size: 0.85rem;
    color: var(--text-muted);
    white-space: nowrap;
}

select {
    padding: 0.4rem 0.6rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.85rem;
    cursor: pointer;
}

#find-btn {
    grid-column: 1 / -1;
    padding: 0.7rem;
    background: var(--accent);
    color: #ffffff;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

#find-btn:hover:not(:disabled) {
    background: var(--accent-hover);
    box-shadow: 0 4px 12px var(--accent-glow);
}

#find-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: var(--text-muted);
}

/* Status */
.status {
    margin-top: 1rem;
    padding: 0.8rem 1rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    text-align: center;
}

.status.loading {
    background: var(--accent-glow);
    border: 1px solid var(--accent);
    color: var(--accent);
}

.status.error {
    background: rgba(220, 38, 38, 0.05);
    border: 1px solid var(--error);
    color: var(--error);
}

.status.loading::before {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid var(--accent);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 0.5rem;
    vertical-align: middle;
}

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

.hidden {
    display: none !important;
}

/* Progress container */
.progress-container {
    margin-top: 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 0.8rem;
    font-size: 0.85rem;
    color: var(--text);
}

.progress-counters {
    display: flex;
    gap: 1rem;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.progress-bar-track {
    height: 4px;
    background: var(--bg);
}

.progress-bar-fill {
    height: 100%;
    background: var(--accent);
    width: 0%;
    transition: width 0.15s ease-out;
}

.progress-log {
    max-height: 150px;
    overflow-y: auto;
    padding: 0.4rem 0.8rem;
    font-size: 0.75rem;
    font-family: 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    line-height: 1.5;
}

.log-line {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.log-line.found {
    color: var(--success);
    font-weight: 600;
}

/* Results */
#results {
    margin-top: 1.5rem;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.degrees-badge {
    font-size: 1.1rem;
    font-weight: 600;
}

.degrees-badge .number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background: var(--accent);
    color: white;
    border-radius: 50%;
    margin: 0 0.3rem;
    font-size: 1rem;
}

.results-actions {
    display: flex;
    gap: 0.5rem;
}

.results-actions button {
    padding: 0.4rem 0.8rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.15s;
}

.results-actions button:hover {
    background: var(--surface-hover);
    color: var(--text);
    border-color: var(--text);
}

#graph-container {
    width: 100%;
    height: 500px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

#details-panel {
    margin-top: 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.2rem;
}

#details-panel h3 {
    font-size: 1rem;
    margin-bottom: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.connection-step {
    border-left: 4px solid var(--accent);
    padding: 0.6rem 0 0.6rem 1rem;
    margin-bottom: 0.6rem;
    background: var(--bg);
    border-radius: 0 4px 4px 0;
}

.connection-step:last-child {
    margin-bottom: 0;
}

.connection-step .people {
    font-weight: 700;
    margin-bottom: 0.3rem;
    color: var(--text);
}

.connection-step .show-name {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.connection-step .show-name a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

.connection-step .show-name a:hover {
    text-decoration: underline;
}

.connection-step .roles {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

.degree-group {
    margin-bottom: 1.2rem;
}

.degree-group:last-child {
    margin-bottom: 0;
}

.degree-heading {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.6rem;
    padding-bottom: 0.3rem;
    border-bottom: 2px solid var(--accent-glow);
}

.connection-path {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.8rem;
    margin-bottom: 0.5rem;
}

.connection-path:last-child {
    margin-bottom: 0;
}

.path-summary {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.5rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px dashed var(--border);
}

.no-connection {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 640px) {
    .search-panel {
        grid-template-columns: 1fr;
    }

    .filters {
        flex-direction: column;
        gap: 0.8rem;
    }

    #graph-container {
        height: 350px;
    }
}