/* Shared visual system for the homepage, setup screens, and games. */
:root {
  --page: #10121a;
  --surface: #1b202c;
  --surface-hover: #222b38;
  --line: #343e4e;
  --text: #f5f3ed;
  --muted: #b9bdc8;
  --green: #b4ec76;
  --teal: #87c8ca;
  --orange: #ff8a24;
  --radius: 20px;
  --gap: 20px;
}
body { background: radial-gradient(ellipse at 90% 0, #223041 0, transparent 48%), var(--page); }
.shell { max-width: 1800px; padding: 28px clamp(20px, 3vw, 40px); }
.shell > header { margin-bottom: 28px; padding-bottom: 22px; border-color: var(--line); }
.brand { width: clamp(160px, 18vw, 220px); }
.brand-tagline { display: block; margin: 8px 0 0 2px; color: var(--muted); font-size: 12px; font-weight: 500; letter-spacing: .06em; }
.header-note { color: var(--muted); border: 0; padding: 0; font-size: 12px; white-space: nowrap; }
h1, h2, h3 { color: var(--text); font-weight: 600; }
h2, .quiz-stage h2 { font-size: clamp(28px, 3vw, 40px); line-height: 1.18; letter-spacing: -.04em; }
h3 { font-size: 23px; letter-spacing: -.025em; }
.eyebrow, .art-caption, .mode-meta { color: var(--teal); font-size: 12px; font-weight: 500; letter-spacing: .025em; text-transform: none; }
.micro { color: var(--muted); font-size: 13px; line-height: 1.6; }
.lede { color: var(--muted); font-size: 18px; line-height: 1.65; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 12px 20px; border: 1px solid transparent; border-radius: 12px; font-size: 14px; font-weight: 600; line-height: 1.4; transition: background .16s, border-color .16s; }
.button:hover:not(:disabled) { transform: none; box-shadow: none; }
.button.secondary { background: var(--surface); border-color: var(--line); color: var(--text); }
.button.ghost { background: transparent; border-color: var(--line); color: var(--text); }
.button.secondary:hover:not(:disabled), .button.ghost:hover:not(:disabled) { background: var(--surface-hover); border-color: var(--teal); }
.button.worldwise { background: var(--teal); color: #102b2c; }
.button.worldwise:hover:not(:disabled) { background: #a0d6d7; }
.button.small { min-height: 42px; padding: 10px 16px; font-size: 13px; }
:is(button, input, select, a, summary):focus-visible,
.quiz-v1 :is(button, input, select, a):focus-visible { outline: 2px solid var(--green); outline-offset: 4px; }
.actions { gap: 12px; margin-top: 24px; }
.panel { padding: clamp(20px, 2.3vw, 32px); border-radius: var(--radius); background: var(--surface); border-color: var(--line); }
input, select { min-height: 46px; border-color: var(--line); border-radius: 12px; }
.home-hero { grid-template-columns: minmax(0, 1.05fr) minmax(360px, 1.15fr); gap: clamp(24px, 4vw, 64px); padding: 6px 0 36px; }
.home-intro h1 { margin: 0 0 20px; color: var(--green); font-size: clamp(42px, 4.7vw, 72px); line-height: 1.08; }
.home-intro h1 em { color: var(--teal); }
.home-intro .lede { max-width: 470px; margin: 0; }
.home-intro .actions { margin-top: 24px; }
.home-explore { min-width: 0; }
.home-art { border: 0; border-radius: 0; padding: 18px 12px 12px; background: transparent; box-shadow: none; color: var(--teal); }
.art-caption { text-align: center; font-size: 12px; color: var(--green); text-transform: uppercase; }
.home-art home-globe { height: clamp(380px, 36vw, 560px); max-width: none; aspect-ratio: auto; margin: 8px auto; border: 0; border-radius: 0; background: transparent; container-type: size; }
.home-art home-globe:focus, .home-art home-globe:focus-visible { outline: none; box-shadow: none; }
.home-art:has(home-globe:focus-visible) .art-caption { text-decoration: underline; text-underline-offset: 4px; }
.art-bottom { justify-content: center; }
.globe-credit { font-size: 10px; color: var(--muted); }
.globe-motion, .globe-expand { display: grid; place-items: center; width: 44px; height: 44px; padding: 6px; border: 0; border-radius: 0; background: transparent; font-size: 11px; }
.globe-expand { left: auto; right: 0; bottom: 52px; color: var(--green); }
.globe-motion { color: var(--teal); }
.home-art .globe-expand, .home-art .globe-motion { right: max(0px, calc(50% - min(38cqh, 38cqw) - 80px)); bottom: auto; }
.home-art .globe-expand { top: 5%; }
.home-art .globe-motion { top: calc(5% + 48px); }
.globe-light { position: absolute; right: 0; bottom: 48px; display: grid; place-items: center; width: 44px; height: 44px; padding: 6px; border: 0; background: transparent; color: var(--text); cursor: pointer; }
.globe-light:hover { background: transparent; color: var(--text); }
.globe-light:disabled { opacity: .5; cursor: wait; }
.globe-light svg { width: 32px; height: 32px; margin: 0; stroke: currentColor; pointer-events: none; }
.home-art .globe-light { right: max(0px, calc(50% - min(38cqh, 38cqw) - 80px)); top: calc(5% + 96px); bottom: auto; }
.home-art .globe-light svg { stroke: currentColor; stroke-width: 1.8; }
.globe-expand:hover { background: transparent; color: var(--green); }
.globe-motion:hover { background: transparent; color: var(--teal); }
.globe-motion svg, .globe-expand svg { width: 32px; height: 32px; pointer-events: none; }
.home-art .globe-expand svg { stroke: var(--green); stroke-width: 1.8; margin: 0; }
.home-art .globe-motion svg { stroke: none; fill: var(--teal); margin: 0; }
.globe-detail-dialog .globe-motion { padding: 8px; }
.home-atlas { display: flex; align-items: center; gap: 10px; width: min(100%, 440px); margin: 12px auto 0; padding: 10px 14px; background: var(--surface); color: var(--text); border: 1px solid var(--line); border-radius: 14px; text-align: left; transition: border-color .16s, background .16s; }
.home-atlas > span:nth-child(2) { flex: 1; min-width: 0; }
.home-atlas strong { display: block; font-size: 14px; font-weight: 600; margin-bottom: 2px; }
.home-atlas > span:nth-child(2) > span { display: block; color: var(--muted); font-size: 11px; line-height: 1.5; }
.mode-icon { display: grid; place-items: center; width: 40px; height: 40px; flex-shrink: 0; border: 1px solid var(--line); border-radius: 12px; color: var(--teal); }
.mode-icon svg { width: 22px; height: 22px; }
.home-atlas .mode-icon { width: 32px; height: 32px; border-radius: 10px; }
.home-atlas .mode-icon svg { width: 18px; height: 18px; }
.home-discover { padding-top: 0; }
.home-section-heading { margin-bottom: 20px; align-items: center; }
.home-section-heading h2 { font-size: 28px; margin: 0; }
.home-section-heading > p { font-size: 14px; margin: 0; }
.home-modes { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--gap); }
.home-mode, .classic-mode-half,
:is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card) {
  position: relative; display: flex; flex-direction: column; align-items: flex-start; justify-content: flex-start;
  gap: 0; margin: 0; min-width: 0; min-height: 228px; padding: 24px;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--text);
  text-align: left; overflow: hidden; transition: border-color .16s, background .16s;
}
.home-mode:hover, .classic-mode-half:hover,
:is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card):is(:hover, :focus-within),
.home-atlas:hover { transform: none; box-shadow: none; border-color: var(--teal); background: var(--surface-hover); }
.home-mode .mode-icon { margin-bottom: 20px; }
.home-mode .mode-meta { margin-bottom: 8px; }
.home-mode h3 { margin: 0 0 10px; font-size: 25px; }
.home-mode p { margin: 0 0 24px; color: var(--muted); font-size: 14px; line-height: 1.65; }
.home-mode-link, .classic-mode-link { width: 100%; display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); color: var(--green); font-size: 13px; font-weight: 600; }
.home-online { margin-top: 20px; padding: 24px; border-radius: var(--radius); border-color: var(--line); background: var(--surface); }
.home-online h3 { font-size: 20px; margin: 0 0 6px; }
.home-online p:last-child { font-size: 14px; }
.home-online .actions { gap: 12px; }
.picker-heading { margin-bottom: 28px; }
.picker-nav { display: flex; align-items: center; gap: 20px; margin-bottom: 24px; }
.picker-nav .eyebrow { margin: 0; }
.picker-heading h2 { margin: 0 0 10px; }
.picker-heading > .micro { margin: 0; max-width: 680px; }
.mode-choice-top { align-items: center; margin-bottom: 24px; gap: 20px; }
.mode-choice-top .eyebrow { margin: 0; }
.mode-choice-top:has(.home-icon-button) { justify-content: flex-start; }
.mode-choice-top .home-icon-button { order: -1; }
.mode-choice-top .home-icon-button, .home-icon-button { display: inline-flex; width: auto; padding: 10px 16px; }
.choice-grid, .classic-mode-halves { gap: var(--gap); }
.classic-mode-halves { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-rows: auto; min-height: 0; }
.classic-difficulty-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.classic-mode-half { min-height: 250px; }
.classic-mode-copy { flex: 1; width: 100%; max-width: none; }
.classic-mode-copy .eyebrow { margin-bottom: 12px; padding-right: 70px; }
.classic-mode-title { font-size: 30px; line-height: 1.2; padding-right: 70px; }
.classic-mode-description { display: block; max-width: 520px; margin: 12px 0 24px; color: var(--muted); font-size: 14px; line-height: 1.65; }
.classic-mode-link { margin-top: auto; }
.classic-mode-symbol { position: absolute; top: 24px; right: 24px; padding: 0; color: var(--teal); font-size: 36px; line-height: 1; opacity: 1; }
.classic-mode-half:hover .classic-mode-symbol { transform: none; opacity: 1; }
.classic-mode-challenge :is(.eyebrow, .classic-mode-symbol) { color: var(--teal); }
.classic-mode-challenge .classic-mode-link { color: var(--green); }
:is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card)::before {
  inset: 24px 24px auto auto; z-index: 0; width: 56px; height: 48px; border-radius: 10px; opacity: .65;
  background-image: var(--category-image, var(--region-image, var(--option-image, var(--practice-region-image, none))));
  background-size: cover; transform: none !important;
}
:is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card) h3 { margin: 0 0 12px; padding-right: 70px; font-size: 24px; text-shadow: none; }
.choice-grid :is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card) p { min-height: 0; margin: 0 0 24px; color: var(--muted); font-size: 14px; line-height: 1.65; text-shadow: none; }
:is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card) .button {
  justify-content: space-between; width: 100%; margin-top: auto; padding: 16px 0 0; min-height: 36px;
  border: 0; border-top: 1px solid var(--line); border-radius: 0; background: transparent; color: var(--green);
}
:is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card) .button:hover { background: transparent; color: var(--text); }
.classic-flag-matrix { inset: 24px 24px auto auto; width: 56px; height: 48px; padding: 0; gap: 2px; opacity: .65; overflow: hidden; border-radius: 8px; }
/* Region cards blend into the page and respond through a gentle zoom. */
.classic-region-grid .classic-region-card .button { border-top: 0; }
.classic-region-grid .classic-region-card {
  border: 1px solid rgba(245, 243, 237, .10);
  border-radius: var(--radius);
  background: transparent;
  transition: transform .22s ease;
}
.classic-region-grid .classic-region-card:is(:hover, :focus-within) {
  background: transparent;
  border-color: rgba(245, 243, 237, .10);
  transform: scale(1.015);
  box-shadow: none;
}
@media (min-width: 761px) {
  .classic-region-grid .classic-region-card.world {
    min-height: 270px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .classic-region-grid .classic-region-card { transition: none; }
  .classic-region-grid .classic-region-card:is(:hover, :focus-within) { transform: none; }
}
/* Category and geography illustrations fill their cards, with copy above a dark overlay. */
:is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card) { isolation: isolate; }
:is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card)::before {
  inset: 0; z-index: 1; width: auto; height: auto; border-radius: 0; opacity: 1; pointer-events: none;
  background-image: linear-gradient(0deg, rgba(8, 14, 25, .96) 0%, rgba(8, 14, 25, .64) 48%, rgba(8, 14, 25, .16) 100%), var(--category-image, var(--region-image, var(--option-image, var(--practice-region-image, none))));
  background-position: center; background-size: cover; transition: transform .25s ease;
}
:is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card):is(:hover, :focus-within)::before { transform: scale(1.04) !important; }
:is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card) .card-hit { z-index: 2; }
:is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card) :is(h3, p, .button) { position: relative; z-index: 3; }
:is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card) h3 { padding-right: 0; text-shadow: 0 2px 10px #060b14; }
.choice-grid :is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card) p { color: #e1e7ee; text-shadow: 0 2px 8px #060b14; }
.classic-option-card .classic-flag-matrix { inset: 0; width: auto; height: auto; padding: 12px; gap: 4px; border-radius: 0; opacity: 1; }
.classic-option-grid, .practice-continent-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (min-width: 1201px) { .classic-option-grid:has(> :nth-child(4)) { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.classic-country-mode-card { position: relative; isolation: isolate; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); min-height: clamp(360px, 32vw, 480px); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #111c2a; }
.classic-country-mode-card::before { content: ""; position: absolute; z-index: 0; inset: 0; pointer-events: none; background-image: linear-gradient(0deg, rgba(8, 14, 25, .95) 0%, rgba(8, 14, 25, .45) 58%, rgba(8, 14, 25, .12) 100%), var(--option-image); background-position: center; background-size: cover; transition: transform .3s ease; }
.classic-country-mode-card:is(:hover, :focus-within)::before { transform: scale(1.025); }
.classic-country-mode { position: relative; z-index: 1; display: flex; flex-direction: column; justify-content: flex-end; align-items: flex-start; min-width: 0; padding: clamp(24px, 3vw, 44px); border: 0; background: transparent; color: var(--text); text-align: left; transition: background .2s ease; }
.classic-country-mode + .classic-country-mode { border-left: 1px solid rgba(245, 243, 237, .28); }
.classic-country-mode:hover { box-shadow: inset 0 0 0 1px var(--mode-color); }
.classic-country-mode:focus-visible { outline: 2px solid var(--green); outline-offset: -5px; }
.classic-country-mode-title { display: block; margin-bottom: 12px; font-size: clamp(27px, 2.5vw, 38px); font-weight: 600; line-height: 1.15; letter-spacing: -.025em; text-shadow: 0 2px 10px #060b14; }
.classic-country-mode-description { display: block; color: #e1e7ee; font-size: 15px; line-height: 1.6; text-shadow: 0 2px 8px #060b14; }
.classic-country-mode-link { display: flex; justify-content: space-between; gap: 16px; width: 100%; margin-top: 28px; padding-top: 18px; border-top: 1px solid rgba(245, 243, 237, .22); color: var(--green); font-size: 14px; font-weight: 600; }
.page-head { gap: 20px; margin-bottom: 24px; }
.page-head .eyebrow { margin: 0 0 10px; }
.page-head h2 { margin: 0; }
.round-toolbar { flex-direction: row; align-items: center; gap: 12px; }
.grid, .quiz-layout, .practice-explorer-layout { gap: var(--gap); grid-template-columns: minmax(0, 1fr) 280px; align-items: start; }
.pill { border: 1px solid var(--line); border-radius: 10px; background: #252e3c; color: var(--muted); padding: 8px 12px; font-size: 12px; font-weight: 500; }
.pill.accent { border-color: #506846; background: #29382e; color: var(--green); }
.quiz-v1 { --quiz-gold: var(--teal); }
.quiz-companion { background: var(--surface); }
.quiz-companion .pip-stage { height: 200px; }
.quiz-team { border-color: var(--line); background: var(--surface); border-radius: var(--radius); padding: 16px 20px; }
.quiz-team.team-0 { border-top-color: var(--teal); }
.quiz-team.team-1 { border-top-color: var(--green); }
.quiz-team.active { background: #25332e; box-shadow: none; }
.quiz-track { margin: 20px 0; }
.quiz-track li { border-bottom-width: 2px; }
.quiz-rules { border-color: var(--line); }
.quiz-rules summary { cursor: pointer; color: var(--teal); font-size: 14px; font-weight: 600; }
.quiz-rules[open] summary { margin-bottom: 14px; }
.quiz-rules li { font-size: 14px; }
.quiz-host .eyebrow, .quiz-turn-label, .pip-comment .eyebrow { color: var(--teal); }
.quiz-trivia { border-color: var(--line); background: #202e36; border-radius: 12px; }
.answer-option, .diagram-cell { border-radius: 12px; border-color: var(--line); background: #252e3c; padding: 18px; }
.practice-country-card, .country-stat { border-radius: var(--radius); border-color: var(--line); background: var(--surface); }
.country-history-facts li::before { background: var(--teal); }
.country-detail-dialog button:focus-visible, .country-detail-dialog a:focus-visible { outline: 2px solid var(--green); outline-offset: 4px; }
footer { margin-top: 32px; padding-top: 20px; color: var(--muted); border-top: 1px solid var(--line); font-size: 12px; }
@media (max-width: 1200px) {
  .home-modes, .classic-option-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .home-mode { min-height: 240px; }
}
@media (max-width: 900px) {
  .grid, .quiz-layout, .practice-explorer-layout { grid-template-columns: minmax(0, 1fr); }
  .quiz-companion { position: static; grid-row: auto; }
  .quiz-host { flex-direction: row; align-items: center; }
  .quiz-companion .pip-stage { width: 100px; height: 120px; }
  .quiz-companion .pip-comment { margin-top: 12px; }
  .quiz-companion > .micro { display: none; }
  .practice-continent-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .shell { padding: 20px; }
  .shell > header { margin-bottom: 24px; padding-bottom: 20px; }
  .home-hero { grid-template-columns: minmax(0, 1fr); gap: 28px; padding: 0 0 32px; }
  .home-intro h1 { font-size: clamp(40px, 7.5vw, 56px); }
  .home-art { max-width: none; padding: 18px 0 12px; border-radius: 0; }
  .home-art home-globe { height: clamp(310px, 88vw, 420px); }
  .home-online { flex-direction: column; align-items: stretch; gap: 20px; padding: 24px; }
  .home-online .actions { flex-wrap: wrap; }
  .classic-mode-halves { grid-template-columns: minmax(0, 1fr); }
  .classic-mode-half { min-height: 230px; }
  .page-head { display: flex; flex-direction: column; gap: 16px; }
  .round-toolbar { margin-top: 0; width: 100%; justify-content: space-between; }
  .picker-nav { gap: 16px; }
}
@media (max-width: 560px) {
  .home-modes, .choice-grid { grid-template-columns: minmax(0, 1fr); }
  .classic-country-mode-card { grid-template-columns: minmax(0, 1fr); min-height: 480px; }
  .classic-country-mode { min-height: 240px; padding: 24px; }
  .classic-country-mode + .classic-country-mode { border-left: 0; border-top: 1px solid rgba(245, 243, 237, .28); }
  .classic-country-mode-link { margin-top: 20px; }
  .home-mode { min-height: 0; padding: 24px; }
  .home-mode .mode-icon { margin-bottom: 16px; }
  .home-section-heading h2 { font-size: 26px; }
  .home-mode h3 { font-size: 24px; }
  .mode-choice-top { gap: 12px; }
  .mode-choice-top .eyebrow { max-width: 65%; }
  .picker-nav .eyebrow { font-size: 11px; }
  .quiz-team { padding: 14px; }
  .quiz-team > span { font-size: 15px; }
  .quiz-host { gap: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  .home-mode, .home-atlas, .classic-mode-half, .mode-card, .button { transition: none; }
  .classic-country-mode, .classic-country-mode-card::before { transition: none; }
  .classic-country-mode-card:is(:hover, :focus-within)::before { transform: none; }
  :is(.local-category-card, .classic-region-card, .classic-option-card, .practice-continent-card)::before { transition: none; transform: none !important; }
}
.classic-pace-control { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 20px; margin-bottom: 24px; }
.classic-pace-control .micro { margin: 0; }
.classic-pace-toggle { display: inline-flex; padding: 4px; gap: 4px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.classic-pace-toggle button { min-height: 42px; padding: 10px 20px; border: 0; border-radius: 10px; background: transparent; color: var(--muted); font: inherit; cursor: pointer; }
.classic-pace-toggle button[aria-pressed="true"] { background: var(--green); color: var(--page); }
.classic-country-mode { isolation: isolate; overflow: hidden; }
.classic-country-mode-name { --mode-color: #b4ec76; background: linear-gradient(145deg, rgba(180, 236, 118, .24), rgba(18, 36, 27, .78)); }
.classic-country-mode-find { --mode-color: #78b9f5; background: linear-gradient(145deg, rgba(120, 185, 245, .24), rgba(17, 34, 56, .78)); }
.classic-country-mode-link { color: var(--mode-color); }
.classic-country-mode-capitals { --mode-color: var(--teal); background: linear-gradient(145deg, rgba(135, 200, 202, .24), rgba(15, 38, 40, .78)); }
@media (min-width: 761px) { .classic-country-mode-card-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }