/* ==========================================================================
   PORTFOLIO PAGE — About-Style Layout with Monochrome Donut
   ========================================================================== */

/* ---- Page Layout (mirrors .about-page) ---- */
.portfolio-page {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ---- Hero (mirrors .about-hero) ---- */
.pf-hero {
    padding: calc(var(--header-height) + var(--space-xl)) 0 var(--space-lg);
}

.pf-heading {
    font-family: var(--font-serif);
    font-size: clamp(60px, 10vw, 140px);
    font-weight: 400;
    line-height: 1.0;
    color: var(--text);
}

.pf-intro {
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.6;
    color: var(--text-secondary);
    max-width: 62ch;
    margin-top: var(--space-md);
}

/* ---- KPI (above performance chart) ---- */
.pf-kpi {
    margin-bottom: var(--space-lg);
}

.pf-return {
    font-family: var(--font-serif);
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 700;
    color: var(--text);
    letter-spacing: -2px;
    line-height: 1;
}

.pf-meta {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 12px;
}

.pf-stale {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: var(--space-xs);
    padding: var(--space-xs) 12px;
    border: 1px solid var(--border-light);
    display: none;
}

/* ---- Divider (mirrors .about-divider) ---- */
.pf-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 0;
}

/* ---- Main Grid: Donut left (golden ratio), Info right ---- */
.pf-main {
    display: grid;
    grid-template-columns: 61.8% 1fr;
    gap: var(--space-lg);
    padding: var(--space-lg) 0;
    align-items: start;
}

.pf-donut-col {
    position: sticky;
    top: calc(var(--header-height) + var(--space-md));
}

.pf-donut-wrap {
    position: relative;
    width: 100%;
    cursor: pointer;
}

#pf-donut-svg {
    width: 100%;
    height: auto;
}

.pf-donut-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
}

.pf-donut-center-pct {
    font-family: var(--font-serif);
    font-size: 26px;
    font-weight: 700;
    color: var(--text);
    display: block;
}

.pf-donut-center-sub {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    display: block;
    margin-top: 4px;
}

/* ---- Positions List (right column) ---- */
.pf-info-col {
    padding-top: 0;
}

.pf-pos-class {
    margin-bottom: var(--space-md);
}

.pf-pos-class-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: var(--space-xs) 0;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: opacity 0.3s var(--ease);
}

.pf-pos-class-header:hover {
    opacity: 0.7;
}

.pf-pos-class-header.is-active {
    border-bottom-color: var(--text);
}

.pf-pos-class-name {
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.08em;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.pf-pos-class-letter {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-muted);
    width: 16px;
}

.pf-pos-class-pct {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-secondary);
}

.pf-pos-items {
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.4s var(--ease);
}

.pf-pos-items.is-open {
    max-height: 600px;
}

.pf-pos-item {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 6px 0 6px 24px;
    border-bottom: 1px solid var(--bg-card);
    transition: background-color 0.2s var(--ease);
    cursor: pointer;
}

.pf-pos-item:hover {
    background-color: var(--bg-elevated);
}

.pf-pos-item.is-highlighted {
    background-color: var(--bg-input);
}

.pf-pos-item-name {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--text-secondary);
}

.pf-pos-item-name a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s var(--ease);
}

.pf-pos-item-name a:hover {
    color: var(--text);
}

.pf-pos-item-arrow {
    color: var(--text-faint);
    font-size: 12px;
    margin-left: 4px;
}

.pf-pos-item-data {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-muted);
    text-align: right;
    flex-shrink: 0;
    margin-left: var(--space-sm);
}

.pf-pos-item-data .pf-pos-return {
    margin-left: 8px;
    color: var(--text-faint);
    font-size: 12px;
}

/* ---- SVG interactions ---- */
.segment-group {
    cursor: pointer;
    outline: none;
}

.segment-group:focus-visible .ring-arc {
    stroke-width: 3 !important;
}

.ring-arc {
    transition: opacity 0.5s var(--ease);
}

.ring-arc.is-dimmed {
    opacity: 0.08;
}

.ring-arc.is-highlighted {
    stroke-width: 3;
}

.hatch-seg {
    transition: opacity 0.5s var(--ease);
}

.hatch-seg.is-dimmed {
    opacity: 0.08;
}

.seg-label {
    transition: opacity 0.5s var(--ease);
}

.seg-label.is-dimmed {
    opacity: 0.12;
}

/* ---- Tooltip ---- */
.pf-tooltip {
    position: fixed;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 10px 14px;
    font-family: var(--font-mono);
    font-size: 13px;
    pointer-events: none;
    z-index: 100;
    display: none;
    max-width: 220px;
}

.pf-tooltip-name {
    color: var(--text);
    font-weight: 500;
    margin-bottom: 4px;
}

.pf-tooltip-line {
    color: var(--text-secondary);
    font-size: 12px;
}

/* ---- Section label ---- */
.pf-label {
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
    display: block;
}

.pf-section {
    padding: var(--space-lg) 0;
}

/* ---- Transactions ---- */
.pf-tx-row {
    display: flex;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--bg-card);
    font-size: 14px;
}

.pf-tx-date {
    font-family: var(--font-mono);
    color: var(--text-faint);
    width: 72px;
    flex-shrink: 0;
    font-size: 13px;
}

.pf-tx-type {
    padding: 2px 8px;
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    width: 64px;
    text-align: center;
    flex-shrink: 0;
    font-family: var(--font-sans);
}

.pf-tx-type--verkauf { border: 1px solid var(--text); color: var(--text); }
.pf-tx-type--kauf { border: 1px solid var(--text-muted); color: var(--text-secondary); }
.pf-tx-type--sparplan { border: 1px solid var(--border-light); color: var(--text-muted); }
.pf-tx-type--dividende { border: 1px dashed var(--text-muted); color: var(--text-muted); }

.pf-tx-name {
    color: var(--text);
    margin-left: 12px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pf-tx-pct {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    margin-left: auto;
    font-size: 13px;
    padding-left: var(--space-xs);
    flex-shrink: 0;
}

.pf-tx-more {
    text-align: center;
    margin-top: 20px;
}

.pf-tx-more span {
    font-family: var(--font-sans);
    font-size: 13px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 2px;
    cursor: pointer;
    transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.pf-tx-more span:hover {
    color: var(--text);
    border-color: var(--text);
}

/* ---- Performance Chart ---- */
.pf-perf-btns {
    display: flex;
    gap: 0;
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.pf-perf-btn {
    padding: 6px 14px;
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    border: 1px solid var(--border-light);
    cursor: pointer;
    transition: all 0.2s var(--ease);
    font-family: var(--font-sans);
    background: none;
}

.pf-perf-btn:hover {
    color: var(--text-secondary);
    border-color: var(--text-faint);
}

.pf-perf-btn.is-active {
    background: var(--text);
    color: var(--black);
    border-color: var(--text);
}

.pf-chart-wrap {
    position: relative;
    height: 280px;
    margin-bottom: 20px;
}

.pf-bm-controls {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.pf-bm-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-sans);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-faint);
    cursor: pointer;
    transition: color 0.2s var(--ease);
}

.pf-bm-label:hover,
.pf-bm-label.is-active {
    color: var(--text-secondary);
}

.pf-bm-check {
    width: 12px;
    height: 12px;
    border: 1px solid var(--border-light);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.2s var(--ease);
    flex-shrink: 0;
}

.pf-bm-label.is-active .pf-bm-check {
    border-color: var(--text);
}

.pf-bm-dot {
    width: 6px;
    height: 6px;
    background: var(--text);
    display: none;
}

.pf-bm-label.is-active .pf-bm-dot {
    display: block;
}

/* ---- Footer ---- */
.pf-disclaimer {
    padding: var(--space-md) 0 var(--space-xl);
    text-align: center;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-faint);
    border-top: 1px solid var(--border);
    margin-top: var(--space-lg);
}

.pf-disclaimer p {
    margin: 0 auto;
    max-width: 68ch;
    line-height: 1.7;
}

.pf-disclaimer-transparency {
    color: var(--text-muted);
    margin-bottom: var(--space-xs) !important;
}

.pf-disclaimer-transparency a {
    color: var(--text-muted);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color 0.3s;
}

.pf-disclaimer-transparency a:hover {
    color: var(--text);
}

.pf-disclaimer-update {
    color: var(--text-faint);
}

/* ---- Error ---- */
.pf-error {
    text-align: center;
    padding: var(--space-2xl) var(--space-md);
}

.pf-error p {
    font-family: var(--font-body);
    font-size: 16px;
    color: var(--text-secondary);
}

/* ---- Skeleton ---- */
@keyframes sk-pulse {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.sk {
    background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-input) 50%, var(--bg-card) 75%);
    background-size: 200% 100%;
    animation: sk-pulse 1.8s ease infinite;
}

.pf-skeleton {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: calc(var(--header-height) + var(--space-xl)) var(--space-md) 0;
}

.pf-skeleton-header {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border);
}

.sk-heading { height: 80px; width: 340px; }
.sk-return { height: 48px; width: 200px; }
.sk-meta { height: 12px; width: 260px; }
.sk-divider { height: 1px; width: 100%; background: var(--border); }
.sk-donut { width: 100%; aspect-ratio: 1; border-radius: 50%; }
.sk-line { height: 14px; width: 100%; }

.pf-skeleton-main {
    display: grid;
    grid-template-columns: 38.2% 1fr;
    gap: var(--space-lg);
    padding: var(--space-lg) 0;
}

.pf-skeleton-lines {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .pf-hero {
        padding-top: calc(var(--header-height) + var(--space-xl));
    }

    .pf-heading {
        font-size: 48px;
    }

    .pf-return {
        font-size: 36px;
    }

    .pf-main {
        grid-template-columns: 1fr;
    }

    .pf-donut-col {
        position: static;
    }

    .pf-tx-name {
        font-size: 13px;
    }

    .pf-bm-controls {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .pf-return {
        font-size: 32px;
    }

    .pf-tx-date {
        width: 56px;
        font-size: 12px;
    }

    .pf-tx-type {
        width: 54px;
        font-size: 10px;
    }
}