/* Cross-Functional Team Hub - Styles */

:root {
    --primary: rgb(30, 75, 105);
    --accent: rgb(70, 180, 200);
    --bg: #f5f7fa;
    --font: 'Segoe UI', system-ui, sans-serif;
    --hub-size: min(460px, 90vw);
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: #1e293b;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 24px 20px 40px;
}

h1 {
    text-align: center;
    color: var(--primary);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.subtitle {
    text-align: center;
    color: #64748b;
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.instructions {
    text-align: center;
    color: #94a3b8;
    font-size: 0.82rem;
    margin-top: 16px;
    font-style: italic;
}

/* Hub Layout */
.hub-wrapper {
    position: relative;
    width: var(--hub-size);
    height: var(--hub-size);
    margin: 0 auto;
}

.connections-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.connections-svg line {
    stroke: #cbd5e1;
    stroke-width: 2;
    transition: stroke 0.3s ease, stroke-width 0.3s ease, opacity 0.3s ease;
}

.connections-svg line.highlighted {
    stroke-width: 3;
    opacity: 1;
}

.connections-svg line.dimmed {
    opacity: 0.15;
}

.hub-layout {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

/* Center node */
.hub-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    z-index: 3;
}

.hub-center:hover {
    transform: translate(-50%, -50%) scale(1.08);
    box-shadow: 0 6px 24px rgba(245, 158, 11, 0.5);
}

.hub-center.active {
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.3), 0 6px 24px rgba(245, 158, 11, 0.5);
}

.center-icon {
    font-size: 1.8rem;
    color: white;
    line-height: 1;
}

.center-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: white;
    margin-top: 4px;
    text-align: center;
}

/* Spoke nodes */
.spoke-node {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: transform 0.3s ease, opacity 0.3s ease;
    z-index: 3;
}

.spoke-node:hover {
    transform: translate(-50%, -50%) scale(1.1);
}

.spoke-node.active {
    transform: translate(-50%, -50%) scale(1.12);
}

.spoke-node.dimmed {
    opacity: 0.3;
}

.spoke-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
    transition: box-shadow 0.3s ease;
}

.spoke-node:hover .spoke-icon,
.spoke-node.active .spoke-icon {
    box-shadow: 0 5px 18px rgba(0, 0, 0, 0.25);
}

.spoke-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--primary);
    margin-top: 6px;
    white-space: nowrap;
}

/* Detail panel */
.detail-panel {
    margin-top: 20px;
    background: white;
    border-radius: 12px;
    border: 2px solid #e2e8f0;
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.3s ease, border-color 0.3s ease;
}

.detail-panel.visible {
    max-height: 400px;
    opacity: 1;
}

.detail-header {
    padding: 14px 20px;
    font-weight: 700;
    font-size: 1rem;
    color: white;
    display: flex;
    align-items: center;
    gap: 10px;
}

.detail-body {
    padding: 16px 20px;
}

.detail-body h4 {
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: 4px;
    margin-top: 10px;
}

.detail-body h4:first-child {
    margin-top: 0;
}

.detail-body ul {
    padding-left: 18px;
    font-size: 0.85rem;
    color: #475569;
}

.detail-body li {
    margin-bottom: 3px;
}

/* Tooltip */
.tooltip {
    position: fixed;
    padding: 10px 14px;
    background: var(--primary);
    color: white;
    border-radius: 8px;
    font-size: 0.82rem;
    max-width: 260px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    line-height: 1.4;
}

.tooltip.visible {
    opacity: 1;
}

/* Responsive */
@media (max-width: 520px) {
    :root {
        --hub-size: 340px;
    }

    .container {
        padding: 16px 8px 32px;
    }

    h1 {
        font-size: 1.3rem;
    }

    .hub-center {
        width: 76px;
        height: 76px;
    }

    .center-icon {
        font-size: 1.4rem;
    }

    .center-label {
        font-size: 0.65rem;
    }

    .spoke-icon {
        width: 48px;
        height: 48px;
        font-size: 1.2rem;
    }

    .spoke-label {
        font-size: 0.7rem;
    }
}