html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: #f1f5f9;
    color: #0f172a;
}

body {
    display: flex;
    flex-direction: column;
}

.app {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: relative;
}

.app-header {
    background: #0f172a;
    color: #f8fafc;
    padding: 14px 24px;
    display: flex;
    align-items: baseline;
    gap: 16px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

.app-header h1 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 0.2px;
}

.app-header .subtitle {
    font-size: 13px;
    color: #94a3b8;
}

.tree-container {
    flex: 1;
    display: flex;
    min-height: 0;
    background: #f8fafc;
}

.tree-svg {
    flex: 1;
    min-width: 0;
    overflow: auto;
    padding: 24px;
}

.tree-svg svg {
    display: block;
    min-width: 100%;
}

/* Card base */
.person-card {
    cursor: pointer;
    transition: transform 80ms ease-out;
}

.person-card .card-bg {
    fill: #ffffff;
    stroke: #475569;
    stroke-width: 1.5;
}

.person-card .card-name { fill: #0f172a; }
.person-card .card-dates { fill: #475569; }
.person-card .card-role  { fill: #64748b; }

.person-card:hover .card-bg {
    fill: #e0f2fe;
    stroke: #0369a1;
}

.person-card.selected .card-bg {
    fill: #bae6fd;
    stroke: #0369a1;
    stroke-width: 2.5;
}

/* Anonymized (living relatives shown as Father/Mother/Brother/Sister) */
.person-card.anonymized .card-bg {
    fill: #f8fafc;
    stroke: #94a3b8;
    stroke-dasharray: 5 4;
}
.person-card.anonymized .card-name { fill: #475569; font-style: italic; }
.person-card.anonymized .card-role  { fill: #94a3b8; }

/* Deceased — subtle muted look */
.person-card.deceased .card-bg {
    fill: #fafaf9;
    stroke: #57534e;
}
.person-card.deceased .card-name { fill: #292524; }
.person-card.deceased .card-dates { fill: #78716c; }

/* Focus person (you) — accented */
.person-card.focus .card-bg {
    fill: #fef3c7;
    stroke: #b45309;
    stroke-width: 2;
}
.person-card.focus .card-name { fill: #78350f; font-weight: 700; }
.person-card.focus .card-dates { fill: #92400e; }
.person-card.focus .card-role  { fill: #a16207; }

.person-card.focus.selected .card-bg {
    fill: #fde68a;
    stroke: #92400e;
    stroke-width: 2.5;
}

/* Side panel */
.side-panel {
    width: 0;
    background: #ffffff;
    border-left: 1px solid #e2e8f0;
    overflow: hidden;
    transition: width 200ms ease-out;
    flex-shrink: 0;
}

.side-panel.open {
    width: 340px;
}

.panel-content {
    padding: 24px;
    position: relative;
    height: 100%;
    box-sizing: border-box;
    overflow-y: auto;
}

.panel-content h2 {
    margin: 0 0 6px 0;
    font-size: 22px;
    font-weight: 600;
}

.panel-content .dates {
    margin: 0 0 18px 0;
    color: #64748b;
    font-size: 14px;
}

.panel-content .meta {
    margin: 4px 0;
    font-size: 14px;
}

.panel-content .meta-label {
    color: #64748b;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 14px;
    margin-bottom: 4px;
    display: block;
}

.panel-content .notes {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid #e2e8f0;
    font-size: 14px;
    line-height: 1.55;
    color: #334155;
}

.close-btn {
    position: absolute;
    top: 14px;
    right: 14px;
    background: none;
    border: none;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    color: #94a3b8;
    padding: 4px 8px;
    border-radius: 4px;
}

.close-btn:hover {
    background: #f1f5f9;
    color: #475569;
}