/* U.S.–Vietnam page; the shared stylesheet supplies HAPRI type and palette. */
.usv-page { background: var(--soft); }
.usv-page [hidden] { display: none !important; }
.usv-page .skip-link:not(:focus) { clip-path: inset(50%); }
.usv-hero { background: var(--teal-900); }
.usv-hero .hero-title { max-width: 68ch; padding-top: 8px; }
.usv-hero .hero-title h1 { font-size: clamp(1.8rem, 3.4vw, 2.7rem); line-height: 1.17; }
.usv-hero .hero-tree { opacity: .65; min-height: 210px; }
.usv-brand { font-size: 1.05rem; font-weight: 800; letter-spacing: .08em; margin: 0 0 20px; }
.usv-brand span { display: inline-block; font-size: .7rem; font-weight: 500; letter-spacing: .01em; margin-left: 12px; }
.usv-hero .hero-sub { background: transparent; padding: 0; max-width: 60ch; }
.usv-hero .hero-eyebrow { background: transparent; padding: 0; font-size: .7rem; }
.usv-hero .hero-bottom { flex-wrap: wrap; justify-content: space-between; }
.usv-hero .hero-tabs { flex-wrap: wrap; min-width: 0; border-radius: var(--r-lg); }
.usv-hero .hero-tabs a { color: #fff; font-size: .86rem; padding: 8px 12px; }
.usv-hero .hero-tabs a[aria-current="page"] { color: var(--blue); }
.usv-language { display: flex; gap: 12px; font-size: .78rem; }
.usv-language a { color: #fff; padding: 8px 0; text-underline-offset: 4px; }
.usv-language a[aria-current="true"] { font-weight: 800; text-decoration-thickness: 2px; }
.usv-main { max-width: var(--page-max); margin: 0 auto; padding: 32px 24px 42px; }
.usv-context { display: grid; grid-template-columns: 1fr 1.25fr; align-items: center; gap: 32px; }
.usv-kicker { color: var(--teal-700d); font-weight: 700; font-size: .8rem; margin: 0 0 6px; }
.usv-coverage { color: var(--ink); font-size: 1.65rem; font-weight: 800; margin: 0; }
.usv-muted { color: var(--slate); font-size: .82rem; margin: 6px 0 0; }
.usv-explanation { color: var(--graphite); font-size: .9rem; line-height: 1.7; margin: 0; }
.usv-note { color: var(--slate); font-size: .8rem; line-height: 1.7; margin: 22px 0; }
.usv-filters { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 22px; box-shadow: var(--shadow-1); }
.usv-filters fieldset { border: 0; padding: 0; margin: 0; display: grid; grid-template-columns: 1.3fr .7fr 1fr; gap: 18px; align-items: end; min-width: 0; }
.usv-filters label { display: flex; flex-direction: column; gap: 7px; min-width: 0; color: var(--graphite); font-size: .78rem; font-weight: 700; }
.usv-filters .usv-institution { grid-column: auto; }
.usv-filters input, .usv-filters select { width: 100%; min-width: 0; min-height: 44px; border: 1px solid var(--mist); border-radius: var(--r-md); padding: 9px 10px; background: #fff; color: var(--ink); font: inherit; font-size: .87rem; font-weight: 400; }
.usv-page button { min-height: 44px; border: 1px solid var(--teal-700d); border-radius: var(--r-md); padding: 9px 16px; background: var(--teal-700d); color: #fff; font: inherit; font-size: .85rem; font-weight: 600; cursor: pointer; }
.usv-page button:hover { background: var(--teal-900); }
.usv-page button:disabled { opacity: .55; cursor: default; }
.usv-page :is(input,select,button,a):focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
.usv-hero a:focus-visible { outline-color: #fff; }
.usv-results-head { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: baseline; margin: 28px 0 18px; }
.usv-results-head h2 { font-size: 1.2rem; color: var(--ink); margin: 0; }
.usv-results-head p { color: var(--slate); font-size: .83rem; margin: 0; }
.usv-records { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.usv-record { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 20px; min-width: 0; box-shadow: var(--shadow-1); }
.usv-record-top { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.8fr); align-items: start; gap: 8px 12px; margin-bottom: 16px; }
.usv-year { color: var(--teal-700d); font-size: .92rem; font-weight: 800; }
.usv-destination { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 5px; color: var(--graphite); font-size: .72rem; }
.usv-destination img { border-radius: 2px; box-shadow: 0 0 0 1px #0001; flex-shrink: 0; }
.usv-destination a { color: var(--teal-700d); text-underline-offset: 3px; font-weight: 700; }
.usv-school { display: flex; align-items: flex-start; gap: 13px; background: var(--school-bg, #07585B); color: var(--school-fg, #fff); border-radius: var(--r-md); padding: 16px; margin-top: 20px; }
.usv-school-mark { width: 64px; height: 64px; flex: 0 0 64px; display: grid; place-items: center; border-radius: 10px; background: #fff; color: var(--teal-700d); font-size: 2rem; }
.usv-school-mark img { width: 56px; height: 56px; object-fit: contain; }
.usv-school-details { min-width: 0; }
.usv-school-label { font-size: .65rem; line-height: 1.55; margin: 0 0 5px; }
.usv-school-name { font-size: .9rem; font-weight: 750; line-height: 1.45; margin: 0; overflow-wrap: anywhere; }
.usv-school-wiki { color: inherit; text-decoration: none; text-underline-offset: 3px; }
.usv-school-wiki:hover, .usv-school-wiki:focus-visible { text-decoration: underline; }
.usv-school-mark[href]:hover { box-shadow: 0 0 0 2px var(--school-fg); }
.usv-school a:focus-visible { outline: 2px solid var(--school-fg); outline-offset: 3px; }
.usv-record h3 { color: var(--ink); font-size: 1.04rem; line-height: 1.5; margin: 0; overflow-wrap: anywhere; }
.usv-facts { display: grid; gap: 13px; margin: 0; }
.usv-facts dt { color: var(--slate); font-size: .68rem; line-height: 1.5; margin: 0 0 2px; }
.usv-facts dd { color: var(--graphite); font-size: .84rem; line-height: 1.55; margin: 0; overflow-wrap: anywhere; }
.usv-card-states { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 10px; margin: 0; text-align: right; }
.usv-card-states > div { min-width: 0; }
.usv-card-states dt { font-size: .61rem; line-height: 1.35; }
.usv-card-states dd { font-size: .73rem; line-height: 1.4; }
.usv-timeline { grid-column: 1 / -1; min-width: 0; padding-bottom: 22px; border-bottom: 1px solid var(--line); margin-bottom: 4px; }
.usv-section-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; margin-bottom: 18px; }
.usv-section-head h2 { font-size: 1.22rem; line-height: 1.4; margin: 0; color: var(--ink); }
.usv-timeline .year-slider { width: 100%; max-width: none; display: grid; grid-template-columns: 1fr auto auto auto 1fr; gap: 12px 8px; }
.usv-timeline .year-slider-hist { grid-column: 1 / -1; width: 100%; height: 64px; margin-top: 10px; }
.usv-timeline .year-slider-track-wrap { grid-column: 1 / -1; width: 100%; min-width: 0; margin-top: 4px; }
.usv-timeline .year-slider-steppers-start { grid-column: 2; }
.usv-timeline .year-slider-value { grid-column: 3; text-align: center; }
.usv-timeline .year-slider-steppers-end { grid-column: 4; }
.usv-timeline .year-slider .filter-helper { grid-column: 1 / -1; text-align: center; margin: 0; }
.usv-timeline .ys-tip-start { transform: none; }
.usv-timeline .ys-tip-end { transform: translateX(-100%); }
.usv-timeline .ys-tip-start::after { left: 8px; }
.usv-timeline .ys-tip-end::after { left: auto; right: 0; }
.usv-timeline input.year-slider-input { min-height: 0; border: 0; border-radius: 0; padding: 0; background: transparent; }
.usv-timeline button.year-slider-step { min-height: 32px; width: 32px; padding: 0; font-size: 1rem; }
.usv-geography { margin-top: 24px; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 26px; background: var(--paper); box-shadow: var(--shadow-1); }
.usv-map-controls { display: flex; flex-wrap: wrap; gap: 12px; }
.usv-map-controls label { display: flex; flex-direction: column; gap: 6px; color: var(--slate); font-size: .72rem; }
.usv-map-controls select { min-height: 44px; max-width: 100%; padding: 8px 12px; border: 1px solid var(--mist); border-radius: var(--r-md); background: white; color: var(--ink); font: inherit; font-size: .83rem; }
.usv-map-layout { display: grid; grid-template-columns: minmax(0, 2fr) minmax(200px, 1fr); gap: 30px; margin-top: 20px; }
.usv-state-map { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); grid-template-rows: repeat(8, auto); gap: 5px; }
.usv-state-map button.usv-state-tile { min-height: 44px; min-width: 0; aspect-ratio: 1; padding: 4px 0; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 1px; border-radius: 7px; border: 1px solid #173f6915; background: var(--tile-bg); color: var(--tile-fg); font-size: .7rem; line-height: 1.2; transition: transform .15s, box-shadow .15s; }
.usv-state-tile span { font-size: .61rem; }
.usv-state-map button.usv-state-tile:hover { transform: translateY(-2px); box-shadow: 0 3px 8px #173f6930; }
.usv-state-map button.usv-state-tile[aria-pressed="true"] { outline: 3px solid var(--teal-700d); outline-offset: 2px; box-shadow: inset 0 0 0 2px #fff; }
.usv-state-map button.usv-state-tile:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; z-index: 1; }
.usv-map-legend { display: flex; align-items: center; justify-content: center; gap: 9px; margin-top: 20px; color: var(--slate); font-size: .7rem; }
.usv-map-ramp { height: 8px; width: 120px; border-radius: 8px; background: linear-gradient(90deg, #e8f8f7, #00b1ac, #173f69); }
.usv-map-inspect { min-height: 2.8em; margin: 12px 0 0; color: var(--graphite); font-size: .8rem; text-align: center; line-height: 1.5; }
.usv-state-ranking { padding: 18px; border-radius: 12px; background: var(--soft); align-self: start; }
.usv-state-ranking h3 { margin: 0; font-size: 1rem; color: var(--ink); }
.usv-state-ranking ol { list-style: none; margin: 16px 0; padding: 0; display: grid; gap: 9px; }
.usv-state-ranking button.usv-state-rank { display: flex; position: relative; align-items: center; justify-content: space-between; gap: 10px; width: 100%; overflow: hidden; border: 1px solid var(--line); padding: 8px 10px 11px; background: white; color: var(--ink); text-align: left; font-size: .8rem; }
.usv-state-rank-label { display: flex; align-items: center; gap: 8px; min-width: 0; }
.usv-state-seal { width: 28px; height: 28px; object-fit: contain; flex-shrink: 0; }
.usv-state-rank > strong { flex-shrink: 0; }
.usv-state-rank i { position: absolute; left: 0; bottom: 0; height: 4px; background: var(--teal); }
.usv-state-ranking button.usv-state-rank:hover, .usv-state-ranking button.usv-state-rank[aria-pressed="true"] { border-color: var(--teal-700d); background: #e8f8f7; }
@media (max-width: 800px) { .usv-map-layout { grid-template-columns: 1fr; } }
@media (max-width: 540px) {
    .usv-geography { padding: 16px 12px; }
    .usv-state-map { gap: 3px; }
    .usv-state-map button.usv-state-tile { min-height: 27px; aspect-ratio: auto; height: 34px; border-radius: 4px; font-size: .58rem; }
    .usv-state-tile span { font-size: .53rem; }
    .usv-map-controls { width: 100%; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
    .usv-map-controls label { min-width: 0; }
    .usv-map-controls select { min-width: 0; width: 100%; padding-inline: 5px; }
}
@media (prefers-reduced-motion: reduce) { .usv-state-map button.usv-state-tile { transition: none; } }
.usv-message { background: var(--paper); padding: 24px; border: 1px solid var(--line); border-radius: var(--r-lg); line-height: 1.7; color: var(--graphite); }
.usv-message h3 { font-size: 1.1rem; margin: 0 0 8px; }
.usv-message button { margin-top: 14px; margin-right: 10px; }
.usv-page .usv-secondary { background: #fff; color: var(--teal-700d); }
.usv-trust { color: var(--slate); font-size: .78rem; line-height: 1.7; margin: 30px 0 0; }
.usv-footer { padding: 28px max(24px, calc((100vw - 1132px) / 2)); }
.usv-footer p { font-size: .8rem; line-height: 1.7; max-width: 90ch; }
.usv-footer a { color: var(--teal-700d); text-underline-offset: 3px; }
.usv-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
@media (max-width: 920px) {
    .usv-records { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .usv-context { grid-template-columns: 1fr; gap: 18px; }
    .usv-hero { padding: 24px; grid-template-columns: 1fr; }
    .usv-hero .hero-tree { display: none; }
    .usv-hero .hero-title { grid-column: 1; grid-row: 1; }
    .usv-hero .hero-bottom { grid-column: 1; grid-row: 2; }
}
@media (max-width: 540px) {
    .usv-main { padding: 24px 16px 32px; }
    .usv-hero { padding: 24px; }
    .usv-brand span { display: block; margin: 5px 0 0; }
    .usv-hero .hero-tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); width: 100%; }
    .usv-hero .hero-tabs a { justify-content: center; padding: 10px 6px; font-size: .8rem; }
    .usv-filters { padding: 16px; }
    .usv-filters fieldset { grid-template-columns: 1fr; gap: 15px; }
    .usv-filters .usv-institution { grid-column: auto; }
    .usv-records { grid-template-columns: 1fr; }
}