/* ═══════════════════════════════════════════════════════════
   Cognate Network Graph Styles
   ═══════════════════════════════════════════════════════════ */

.graph-hero {
    padding: 8rem 0 2rem;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.graph-hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.graph-hero-subtitle {
    font-size: 1rem;
    color: var(--white-dim);
    margin-bottom: 1.5rem;
}

.graph-legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    color: var(--white-dim);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.graph-main {
    display: grid;
    grid-template-columns: 1fr 320px;
    min-height: calc(100vh - 280px);
}

.graph-canvas-wrap {
    position: relative;
    background: #080808;
    overflow: hidden;
}

#cognate-canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.graph-controls {
    position: absolute;
    top: 1rem;
    left: 1rem;
    display: flex;
    gap: 0.5rem;
}

.graph-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--white-faint);
    background: rgba(10,10,10,0.8);
    color: var(--white);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.graph-btn:hover {
    background: rgba(255,255,255,0.08);
}

.graph-sidebar {
    background: rgba(255,255,255,0.02);
    border-left: 1px solid rgba(255,255,255,0.06);
    padding: 1.5rem;
    overflow-y: auto;
}

.sidebar-empty {
    text-align: center;
    color: var(--white-dim);
    font-size: 0.9rem;
    padding: 3rem 1rem;
}

.sidebar-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.sidebar-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--white);
    text-decoration: none;
    transition: color 0.2s;
}

.sidebar-title:hover {
    color: var(--primary);
}

.sidebar-greek {
    font-size: 1rem;
    color: var(--white-dim);
}

.sidebar-domain {
    font-size: 0.8rem;
    color: var(--white-dim);
    letter-spacing: 0.05em;
}

.sidebar-proto {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 0.5rem;
    padding: 0.6rem 0.8rem;
    background: rgba(255,255,255,0.03);
    border-radius: 8px;
    border: 1px solid var(--white-faint);
}

.sidebar-proto-label {
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    border: 1px solid var(--primary-dim);
    color: var(--primary);
}

.sidebar-proto-form {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-style: italic;
    color: var(--secondary);
}

.sidebar-gloss {
    font-style: italic;
    color: var(--white-dim);
    font-size: 0.9rem;
    margin: 0;
}

.sidebar-derivation {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--white-dim);
    margin: 0;
}

.sidebar-cognates h4 {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--white-dim);
    margin-bottom: 0.5rem;
}

.sidebar-cognate {
    display: inline-block;
    padding: 0.3rem 0.6rem;
    margin: 0.2rem;
    border-radius: 6px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--white-faint);
    font-size: 0.8rem;
    color: var(--white);
    text-decoration: none;
    transition: border-color 0.2s;
}

.sidebar-cognate:hover {
    border-color: var(--primary-dim);
}

.sidebar-cognate-lang {
    font-size: 0.65rem;
    color: var(--white-dim);
    text-transform: uppercase;
    margin-left: 0.3rem;
}

.sidebar-certainty {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 0.25rem 0.7rem;
    border-radius: 100px;
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: 1px solid;
}

.sidebar-certainty.certainty-attested {
    border-color: #4ade80;
    color: #4ade80;
    background: rgba(74, 222, 128, 0.08);
}

.sidebar-certainty.certainty-speculative {
    border-color: #fbbf24;
    color: #fbbf24;
    background: rgba(251, 191, 36, 0.08);
}

.sidebar-certainty.certainty-disputed {
    border-color: #f87171;
    color: #f87171;
    background: rgba(248, 113, 113, 0.08);
}

.sidebar-certainty.certainty-unknown {
    border-color: var(--white-dim);
    color: var(--white-dim);
    background: rgba(255, 255, 255, 0.03);
}

@media (max-width: 900px) {
    .graph-main {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr auto;
    }
    .graph-sidebar {
        border-left: none;
        border-top: 1px solid rgba(255,255,255,0.06);
        max-height: 300px;
    }
}