/* Layout and typography for the public report archive. Keep date navigation and
   report anchors usable on narrow screens and with keyboard-only navigation. */

@font-face {
    font-family: "Instrument Sans";
    src: url("instrument-sans.ttf") format("truetype");
    font-style: normal;
    font-weight: 400;
    font-display: swap;
}

:root {
    color-scheme: light;
    --paper: #f6f3eb;
    --ink: #172733;
    --body: #2d3c45;
    --muted: #526068;
    --rule: #cdc7ba;
    --accent: #8c422b;
    --wash: #eeeadf;
    --sans: "Instrument Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
    --serif: "Songti SC", "STSong", SimSun, "Noto Serif CJK SC", serif;
    background: var(--paper);
    color: var(--ink);
    font: 1rem/1.6 var(--sans);
}

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; }
a { color: inherit; }
a, button, input, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
::selection { background: #e9ccba; color: var(--ink); }

.shell {
    width: min(100% - clamp(2.5rem, 9vw, 9rem), 75rem);
    margin-inline: auto;
}

.skip-link {
    position: absolute;
    z-index: 2;
    inset: .6rem auto auto .6rem;
    transform: translateY(-160%);
    padding: .65rem .85rem;
    background: var(--ink);
    color: var(--paper);
}

.skip-link:focus { transform: none; }
.site-header { border-bottom: 1px solid var(--rule); }

.masthead {
    display: flex;
    min-height: 3.5rem;
    align-items: center;
}

.masthead-links {
    display: flex;
    align-items: center;
    gap: clamp(.85rem, 4vw, 2.5rem);
    color: var(--muted);
    font-size: .875rem;
}

.masthead-links a, .text-link { text-decoration: none; }
.masthead-links a:hover, .text-link:hover, .contents a:hover { color: var(--accent); text-decoration: underline; }

.edition-heading { padding-block: clamp(2rem, 4.2vw, 3.6rem) clamp(1.1rem, 2.6vw, 1.9rem); }

.edition-date {
    display: flex;
    align-items: center;
    gap: .7rem;
    margin: 0 0 .6rem;
    color: var(--accent);
    font-size: .9rem;
    font-variant-numeric: tabular-nums;
    letter-spacing: .06em;
}

.edition-date:empty { display: none; }
.weekday { border-inline-start: 1px solid var(--rule); padding-inline-start: .7rem; color: var(--muted); }

h1 {
    margin: 0;
    font: 700 clamp(2.05rem, 5.2vw, 4.3rem)/1.14 var(--serif);
    letter-spacing: -.045em;
    text-wrap: balance;
}

.port-image {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 2.15;
    object-fit: cover;
    object-position: center 57%;
    background: #203746;
}

.reading-layout { margin-block-start: clamp(1.7rem, 3.7vw, 3rem); }
.archive { padding-block-end: 1.25rem; border-block-end: 1px solid var(--rule); }
.archive h2 { margin: 0 0 .8rem; font: 700 1.24rem/1.25 var(--serif); }
.archive-dates, .contents ol { list-style: none; margin: .85rem 0 0; padding: 0; }
.archive-dates:empty { display: none; }

.archive-dates a {
    display: block;
    border-inline-start: 2px solid transparent;
    padding: .43rem .65rem;
    color: var(--body);
    font-size: .875rem;
    font-variant-numeric: tabular-nums;
    text-decoration: none;
}

.archive-dates a:hover { background: var(--wash); }
.archive-dates a[aria-current] { border-inline-start-color: var(--accent); background: var(--wash); color: var(--accent); }
.contents { margin-top: 1.4rem; border-block-start: 1px solid var(--rule); padding-block-start: 1rem; }
.contents summary { width: fit-content; cursor: pointer; font-size: .875rem; font-weight: 700; }
.contents ol { margin-top: .5rem; }
.contents li { margin: .45rem 0; color: var(--muted); font-size: .81rem; line-height: 1.55; }
.contents a { text-decoration: none; }

.report {
    min-width: 0;
    max-width: 54rem;
    padding-block-start: 1.15rem;
    color: var(--body);
    font-size: clamp(.99rem, 1.4vw, 1.08rem);
    line-height: 1.9;
    overflow-wrap: anywhere;
}

.report-tools { display: flex; justify-content: flex-end; margin: 0 0 .85rem; }
.report-tools:empty { display: none; }
.text-link { color: var(--muted); font: .85rem/1.4 var(--sans); }
.text-link span { margin-inline-start: .15em; color: var(--accent); }
.report p { margin-block: 0 1rem; }
.report h2, .report h3 { color: var(--ink); font-family: var(--serif); line-height: 1.35; }

.report h2 {
    margin: 2.3rem 0 .85rem;
    border-top: 1px solid var(--rule);
    padding-top: .85rem;
    font-size: clamp(1.35rem, 2.25vw, 1.85rem);
    scroll-margin-block-start: 1.4rem;
}

.report h3 { margin: 1.5rem 0 .5rem; font-size: 1.2rem; }

.report blockquote {
    margin: 0 0 1.5rem;
    border-inline-start: 2px solid var(--accent);
    padding: .75rem 1rem;
    background: var(--wash);
    color: var(--muted);
    font-size: .875rem;
    line-height: 1.7;
}

.report blockquote p { margin: 0; }
.report ol, .report ul { padding-inline-start: 1.4rem; }
.report li { margin-block-end: .5rem; }
.report :is(p, li) a { color: var(--accent); text-underline-offset: .2em; }
.report table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; }
.report th, .report td { border: 1px solid var(--rule); padding: .4rem .65rem; text-align: start; }
.report pre { overflow-x: auto; padding: .85rem; background: var(--wash); }
.empty-state { padding: 1rem; background: var(--wash); color: var(--muted); }

.site-footer {
    display: flex;
    justify-content: flex-end;
    align-items: baseline;
    gap: 1rem;
    margin-block-start: clamp(2.5rem, 5vw, 4rem);
    border-top: 1px solid var(--rule);
    padding-block: 1.4rem 2.25rem;
}

@media (min-width: 48rem) and (min-height: 36rem) {
    body {
        display: grid;
        grid-template-rows: auto minmax(0, 1fr);
        block-size: 100dvh;
    }

    main.shell { display: grid; grid-template-rows: auto minmax(0, 1fr); }
    .edition-heading { padding-block: clamp(1rem, 4dvh, 3.6rem) clamp(.85rem, 2.5dvh, 1.9rem); }
    .port-image { aspect-ratio: 4.35; max-block-size: 24dvh; }
    .reading-layout {
        display: grid;
        grid-template-columns: minmax(12rem, 14rem) minmax(0, 1fr);
        grid-template-rows: minmax(0, 1fr);
        margin-block-start: clamp(1.25rem, 4dvh, 3rem);
    }

    .archive, .report-pane {
        min-width: 0;
        overflow-y: auto;
        overscroll-behavior-y: contain;
        scrollbar-width: thin;
        scrollbar-color: #ada597 transparent;
        scrollbar-gutter: stable;
        padding-block-end: 1.5rem;
    }

    .archive { border-block-end: 0; padding-inline-end: clamp(.75rem, 2vw, 1.4rem); }
    .report-pane { border-inline-start: 1px solid var(--rule); padding-inline: clamp(1.5rem, 4vw, 3.75rem) .6rem; }
    .report { max-width: none; padding: 0; }
    .report > :not(.report-tools) { max-width: 50rem; }
    .site-footer { width: 100%; padding-block-end: .5rem; }
}