/* EX-13 (Sprint 8) — Transparency report page styles.
 * DEV_GUIDE #1: rem-only sizing (no px / pt / em on size properties).
 * DEV_GUIDE #22: page renders entirely from external CSS + external JS;
 *               no inline scripts, no innerHTML — chart is inline SVG built
 *               via document.createElementNS in transparency.js.
 * WCAG-AA: focus rings explicit; tabs use role="tablist" attribute hooks.
 */

.transparency-page {
    padding-top: 3.75rem;
}

/* ---------- Hero ---------- */
.transparency-hero {
    padding: 4rem 1.25rem 3rem;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(59, 130, 246, 0.08));
    border-bottom: 0.0625rem solid rgba(16, 185, 129, 0.15);
}

.transparency-hero__inner {
    max-width: 64rem;
    margin: 0 auto;
    text-align: center;
}

.transparency-hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 0.75rem;
    line-height: 1.15;
}

.transparency-hero__subtitle {
    font-size: 1.125rem;
    line-height: 1.6;
    max-width: 48rem;
    margin: 0 auto;
    opacity: 0.85;
}

/* ---------- Disclaimer banner ---------- */
.transparency-disclaimer {
    margin: 1.5rem 1.25rem 0;
}

.transparency-disclaimer__inner {
    max-width: 64rem;
    margin: 0 auto;
    padding: 1rem 1.25rem;
    background: rgba(245, 158, 11, 0.12);
    border: 0.0625rem solid rgba(245, 158, 11, 0.5);
    border-radius: 0.625rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.transparency-disclaimer__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    background: rgb(245, 158, 11);
    color: white;
    font-weight: 700;
    flex-shrink: 0;
}

.transparency-disclaimer p {
    margin: 0;
    line-height: 1.5;
}

/* ---------- Tabs ---------- */
.transparency-tabs {
    margin: 2rem 1.25rem 1rem;
}

.transparency-tabs__list {
    max-width: 64rem;
    margin: 0 auto;
    display: flex;
    gap: 0.5rem;
    border-bottom: 0.0625rem solid rgba(255, 255, 255, 0.1);
    padding: 0 0.25rem;
}

.transparency-tabs__btn {
    background: transparent;
    border: none;
    padding: 0.75rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    color: inherit;
    border-bottom: 0.1875rem solid transparent;
    transition: all 0.15s ease;
}

.transparency-tabs__btn:hover {
    background: rgba(255, 255, 255, 0.04);
}

.transparency-tabs__btn:focus-visible {
    outline: 0.125rem solid rgb(59, 130, 246);
    outline-offset: 0.125rem;
}

.transparency-tabs__btn.is-active {
    border-bottom-color: rgb(16, 185, 129);
}

.transparency-tabs__badge {
    display: inline-block;
    margin-left: 0.375rem;
    padding: 0.125rem 0.5rem;
    background: rgba(16, 185, 129, 0.2);
    color: rgb(52, 211, 153);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.0375rem;
}

/* ---------- Panel ---------- */
.transparency-panel {
    max-width: 64rem;
    margin: 0 auto;
    padding: 1.25rem;
}

.transparency-panel__status {
    text-align: center;
    padding: 2rem 1rem;
    color: rgba(255, 255, 255, 0.6);
}

.transparency-panel__header h2 {
    font-size: 1.875rem;
    margin: 0 0 0.5rem;
}

.transparency-panel__summary {
    line-height: 1.55;
    margin: 0 0 1.5rem;
    opacity: 0.85;
}

.transparency-panel__meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
    gap: 1rem;
    margin: 0 0 2rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 0.5rem;
}

.transparency-panel__meta-row dt {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.0625rem;
    opacity: 0.6;
    margin-bottom: 0.25rem;
}

.transparency-panel__meta-row dd {
    margin: 0;
    font-size: 0.9375rem;
    word-break: break-all;
}

.transparency-panel__meta-row code {
    font-family: ui-monospace, SFMono-Regular, monospace;
    font-size: 0.8125rem;
}

/* ---------- Metric cards ---------- */
.transparency-metrics {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
    gap: 1.25rem;
}

.transparency-metric {
    background: rgba(255, 255, 255, 0.05);
    border: 0.0625rem solid rgba(255, 255, 255, 0.1);
    border-radius: 0.625rem;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.transparency-metric__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.75rem;
}

.transparency-metric__title {
    margin: 0;
    font-size: 1.0625rem;
    font-weight: 600;
}

.transparency-metric__badge {
    display: inline-block;
    padding: 0.1875rem 0.5rem;
    background: rgba(245, 158, 11, 0.18);
    color: rgb(245, 158, 11);
    border: 0.0625rem solid rgba(245, 158, 11, 0.4);
    border-radius: 0.3125rem;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.0625rem;
}

.transparency-metric__value {
    margin: 0;
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

.transparency-metric__number {
    font-size: 2rem;
    font-weight: 700;
    color: rgb(52, 211, 153);
}

.transparency-metric__unit {
    font-size: 0.875rem;
    opacity: 0.7;
}

.transparency-metric__harness-reason {
    margin: 0;
    font-size: 0.8125rem;
    line-height: 1.4;
    color: rgb(245, 158, 11);
    background: rgba(245, 158, 11, 0.08);
    padding: 0.5rem 0.625rem;
    border-radius: 0.3125rem;
    border-left: 0.1875rem solid rgb(245, 158, 11);
}

.transparency-metric__breakdown {
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.25rem 1rem;
    font-size: 0.875rem;
}

.transparency-metric__breakdown-row {
    display: contents;
}

.transparency-metric__breakdown-row dt {
    opacity: 0.7;
}

.transparency-metric__breakdown-row dd {
    margin: 0;
    font-weight: 600;
    text-align: right;
}

.transparency-metric__sparkline {
    margin: 0.25rem 0 0;
}

.transparency-metric__svg {
    width: 100%;
    height: 2.5rem;
    overflow: visible;
}

.transparency-metric__svg polyline {
    fill: none;
    stroke: rgb(52, 211, 153);
    stroke-width: 0.125rem;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ---------- Footnotes ---------- */
.transparency-footnotes {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 0.0625rem solid rgba(255, 255, 255, 0.08);
}

.transparency-footnotes h3 {
    margin: 0 0 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    opacity: 0.8;
}

.transparency-footnotes ul {
    margin: 0;
    padding-left: 1.25rem;
    font-size: 0.875rem;
    line-height: 1.55;
    opacity: 0.75;
}

.transparency-footnotes li + li {
    margin-top: 0.5rem;
}

@media (max-width: 40rem) {
    .transparency-hero h1 {
        font-size: 1.75rem;
    }
    .transparency-hero {
        padding: 2.5rem 1rem 2rem;
    }
    .transparency-tabs__btn {
        padding: 0.625rem 0.875rem;
        font-size: 0.9375rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .transparency-tabs__btn {
        transition: none;
    }
}