/* A viewport-sized setup frame; long friend lists alone scroll inside their pane. */
html.hskduel-ui:has(.hsk-wizard:not([hidden])),html.hskduel-ui:has(.hsk-wizard:not([hidden])) body{height:100%;overflow:hidden}
html.hskduel-ui:has(.hsk-wizard:not([hidden])) #app{height:100dvh;min-height:0;max-height:100dvh;max-width:none;width:100%;padding:0;display:flex;flex-direction:column;overflow:hidden}
html.hskduel-ui:has(.hsk-wizard:not([hidden])) #app>header{flex:0 0 60px;height:60px;min-height:60px;padding:8px 16px;box-sizing:border-box;margin:0}
html.hskduel-ui:has(.hsk-wizard:not([hidden])) .exam-date,html.hskduel-ui:has(.hsk-wizard:not([hidden])) .hsk-learn-links{display:none!important}
html.hskduel-ui:has(.hsk-wizard:not([hidden])) #main{flex:1;min-height:0;max-height:none;width:100%;max-width:none;padding:0 16px max(12px,env(safe-area-inset-bottom));overflow:hidden;box-sizing:border-box}
#main:has(.hsk-wizard)>:not(.practice-home):not(.duel-page){display:none!important}
.hskduel-ui .hsk-wizard{height:100%;min-height:0;box-sizing:border-box;max-width:900px!important;width:100%;margin:auto!important;display:grid!important;grid-template-rows:auto minmax(0,1fr) auto;gap:12px;padding:0!important}
.hskduel-ui .hsk-wizard[hidden]{display:none!important}
.hsk-wizard>.row,.hsk-wizard>.setup-heading,.hsk-wizard .setup-key,.hsk-wizard .setup-heading,.hsk-wizard details>summary,.hsk-wizard>.practice-exercises{display:none!important}
.wizard-heading{grid-row:1;grid-column:1;min-width:0;margin:0}
.hsk-wizard .wizard-heading h1{font-size:clamp(22px,3.5vw,32px);font-weight:600;line-height:1.15;margin:14px 0 4px;letter-spacing:-.025em}
.wizard-progress{display:flex;gap:6px}.wizard-progress i{height:4px;flex:1;background:var(--line);border-radius:4px}.wizard-progress i.done{background:var(--accent,var(--fg))}
.hskduel-ui .hsk-wizard .practice-level-chooser{grid-row:2;grid-column:1;align-self:center;margin:0!important;padding:0;border:0;width:100%}
.hsk-wizard .practice-level-chooser legend,.hsk-wizard .duel-levels legend,.hsk-wizard .duel-tasks legend{display:none}
.hskduel-ui .hsk-wizard .practice-level-chooser>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.hskduel-ui .hsk-wizard .practice-level-chooser button{height:auto;min-height:150px!important;padding:12px 4px!important;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;border:1px solid var(--line);border-radius:22px}
.hsk-wizard .practice-level-chooser button small{font-size:13px;color:var(--muted)}
.hskduel-ui .hsk-wizard .practice-level-chooser .stone-cell{width:72px;height:80px;position:relative;overflow:hidden;display:block}
.hsk-wizard .practice-level-chooser .stone-cell img{position:absolute;width:calc(887 / var(--w) * 100%);height:calc(1774 / var(--h) * 100%);left:calc(var(--x) / var(--w) * -100%);top:calc(var(--y) / var(--h) * -100%);object-fit:fill;max-width:none}
.hskduel-ui .hsk-wizard:not([data-setup=path])>.practice-level-chooser,.hskduel-ui .hsk-wizard:not([data-setup=exercise])>.practice-options,.hskduel-ui .hsk-wizard:not([data-setup=words])>#word-selection{display:none!important}
.hskduel-ui .hsk-wizard>.practice-options,.hsk-wizard>.duel-tasks{grid-row:2;grid-column:1;align-self:center;min-height:0}
.hskduel-ui .hsk-wizard .practice-options{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:8px!important;margin:0!important}
.hskduel-ui .hsk-wizard .practice-options button{height:72px!important;min-height:0!important;padding:8px!important;gap:4px!important;position:relative}
.hskduel-ui .hsk-wizard .practice-options .mode-example{font-size:23px!important;line-height:1.2!important}.hskduel-ui .hsk-wizard .practice-options .mode-label{font-size:12px!important;line-height:1.15}
.hsk-wizard .practice-options kbd,.hsk-wizard .mode-recommendation{display:none!important}
.hskduel-ui .hsk-wizard .wizard-fields{grid-row:2;grid-column:1;align-self:center;min-height:0;width:100%;padding:0!important;margin:0!important;border:0!important;max-height:100%}
.hsk-wizard .wizard-fields>details{margin:0;padding:0;border:0}
.hskduel-ui .hsk-wizard .controls{display:flex!important;flex-direction:column;align-items:stretch;gap:16px;margin:0!important;padding:0!important;max-width:none}
.hskduel-ui .hsk-wizard .controls>*{grid-column:auto!important;grid-row:auto!important;min-height:0!important;margin:0!important}
.hskduel-ui .hsk-wizard .controls>[hidden],.hskduel-ui .hsk-wizard [hidden]{display:none!important}
.hskduel-ui .hsk-wizard .controls>label{font-size:0;padding:0!important;display:flex;flex-direction:column;align-items:stretch;background:none;border:0;gap:12px}
.wizard-pools{display:grid;gap:10px}.wizard-pools button{min-height:58px;font-size:20px;border-radius:18px;text-align:center}
.wizard-pools button[aria-pressed=true],.hsk-wizard [data-practice-level][aria-pressed=true]{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);background:var(--soft)}
.hskduel-ui .hsk-wizard .controls>.include-starred{flex-direction:row;justify-content:center;align-items:center;font-size:14px;gap:10px}
.wizard-value{display:block;font-size:clamp(52px,9vh,84px);line-height:1.15;font-weight:650;font-variant-numeric:tabular-nums;text-align:center;color:var(--fg)}
.wizard-slider{display:grid;grid-template-columns:48px minmax(0,1fr) 48px;align-items:center;gap:14px;width:100%}
.wizard-slider button{width:48px;height:48px;padding:0;font-size:28px;border-radius:16px}
.hskduel-ui .hsk-wizard .controls input[type=range]{appearance:auto;accent-color:var(--accent,var(--fg));width:100%;max-width:none;min-width:0;height:48px!important;min-height:48px!important;padding:0!important;background:transparent;border:0;margin:0;touch-action:pan-y;cursor:pointer}
.wizard-range-ends{display:flex;justify-content:space-between;padding:0 63px;font-size:14px;color:var(--muted)}
.wizard-word-preview{font-size:40px;text-align:center;display:block;color:var(--fg)}
.hskduel-ui .hsk-wizard .controls>#order,.hskduel-ui .hsk-wizard .controls>#duel-order{width:100%;height:150px;min-height:100px!important;padding:24px;display:flex;align-items:center;justify-content:center;gap:20px;font-size:32px;border-radius:26px;background:var(--soft)}
.hsk-wizard #order svg{height:36px;width:36px}
.wizard-review{display:grid;gap:7px}.wizard-review button{display:grid;grid-template-columns:1fr auto 12px;align-items:center;gap:12px;text-align:left;padding:12px 16px;min-height:48px;background:var(--soft);border-radius:14px;font-size:14px}
.wizard-review button>span:first-child{color:var(--muted)}.wizard-review strong{text-align:right;font-weight:600}.wizard-review button>span:last-child{color:var(--muted)}
.hskduel-ui .hsk-wizard .start-row,.hskduel-ui .hsk-wizard .duel-setup-navigation{grid-row:3;grid-column:1;display:flex!important;align-items:center;gap:12px;position:static!important;margin:0!important;padding:8px 0 0!important;background:var(--bg);border:0;box-shadow:none;min-height:56px}
.hskduel-ui .hsk-wizard .start-row #practice-exercises,.hskduel-ui .hsk-wizard #duel-setup-back{display:block!important;margin:0!important;min-height:52px;padding:12px 22px}
.hskduel-ui .hsk-wizard .start-row #practice-exercises[hidden]{display:none!important}
.hsk-wizard .start-row #start,.hsk-wizard .duel-setup-navigation .primary{flex:1;min-height:52px;font-size:18px}
.hskduel-ui .duel-page:has(.hsk-wizard:not([hidden])){height:100%;min-height:0;padding:0;max-width:none;display:flex;flex-direction:column}
.duel-page:has(.hsk-wizard:not([hidden]))>.social-head{display:none!important}
.duel-page:has(.hsk-wizard:not([hidden])) #duel-content{flex:1;min-height:0}
.hskduel-ui .hsk-wizard .duel-levels{grid-row:2;grid-column:1;align-self:center;margin:0;padding:0;border:0}
.hsk-wizard .duel-level-options{display:grid;gap:14px}.hsk-wizard .duel-level-options button{min-height:80px;font-size:24px;border-radius:20px}
.hsk-wizard .duel-level-options button span{font-size:13px}.hsk-wizard .duel-tasks{margin:0;padding:0;border:0}
.hsk-wizard .duel-rules{display:none!important}
.hsk-wizard:has(.duel-rated-choice:not([hidden])){grid-template-rows:auto minmax(0,1fr) auto auto}.hsk-wizard:has(.duel-rated-choice:not([hidden])) .duel-setup-navigation{grid-row:4}
.hsk-wizard .duel-rated-choice{grid-row:3;grid-column:1;padding:10px 14px!important;margin:0;border-radius:14px;font-size:14px}
.hsk-wizard .duel-friend-field{grid-row:2;grid-column:1;overflow-y:auto;min-height:0;margin:0;padding:0;border:0}.hsk-wizard .duel-friend-field legend,.hsk-wizard .duel-review{display:none!important}
.wizard-empty{text-align:center;font-size:14px;color:var(--muted)}
@media(max-height:700px){.hsk-wizard .wizard-heading h1{font-size:22px;margin-top:10px}.hskduel-ui .hsk-wizard{gap:8px}.hskduel-ui .hsk-wizard .practice-options button{height:57px!important}.wizard-review button{padding:9px 12px;min-height:42px;font-size:12px}.wizard-pools{gap:7px}.wizard-pools button{min-height:48px;font-size:18px}.wizard-value{font-size:56px}}
@media(max-height:480px) and (orientation:landscape){.hskduel-ui .hsk-wizard .practice-options{grid-template-columns:repeat(4,minmax(0,1fr))!important}.wizard-pools{grid-template-columns:repeat(2,minmax(0,1fr))}.wizard-review{grid-template-columns:1fr 1fr}.hskduel-ui .hsk-wizard .practice-level-chooser button{min-height:100px!important}.hskduel-ui .hsk-wizard .practice-level-chooser .stone-cell{height:44px;width:44px}}
.hskduel-ui .hsk-wizard .start-row,.hskduel-ui .hsk-wizard .duel-setup-navigation{flex-direction:row!important}

.hskduel-ui .hsk-wizard .wizard-slider button{min-height:48px!important;min-width:48px;font-size:27px!important;padding:0!important}
.hskduel-ui .hsk-wizard .controls input[type=range]{appearance:none;-webkit-appearance:none;background:transparent!important;box-shadow:none!important}
.hsk-wizard input[type=range]::-webkit-slider-runnable-track{height:8px;border-radius:8px;background:var(--line)}
.hsk-wizard input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:28px;height:28px;border:3px solid var(--bg);border-radius:50%;background:var(--accent,var(--fg));margin-top:-10px;box-shadow:0 1px 8px #0004}
.hsk-wizard input[type=range]::-moz-range-track{height:8px;border-radius:8px;background:var(--line)}
.hsk-wizard input[type=range]::-moz-range-thumb{width:24px;height:24px;border:3px solid var(--bg);border-radius:50%;background:var(--accent,var(--fg))}

html.hskduel-ui:has(.hsk-wizard:not([hidden])) .online-now{display:none!important}

/* Spacious desktop choices scale down to one screen on phones. */
.hskduel-ui .hsk-wizard{max-width:1100px!important}
.hskduel-ui .hsk-wizard .practice-level-chooser button{min-height:clamp(190px,38dvh,340px)!important;position:relative;gap:18px}
.hskduel-ui .hsk-wizard .practice-level-chooser button>span:not(.stone-cell){font-size:clamp(26px,4vw,48px);font-weight:600}
.hskduel-ui .hsk-wizard .practice-level-chooser .stone-cell{width:clamp(85px,14vw,160px);height:clamp(96px,16vw,180px)}
.hsk-wizard .practice-level-chooser kbd{position:absolute;top:14px;left:14px}
.hsk-wizard .wizard-pools{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.hsk-wizard .wizard-pools button{position:relative;min-height:clamp(90px,17dvh,160px);font-size:clamp(22px,3vw,34px);padding:24px 42px;color:var(--fg);white-space:normal}
.hsk-wizard .wizard-pools kbd{position:absolute;left:14px;top:14px;font-size:13px}
.hsk-wizard .wizard-pools button[aria-pressed=true]{color:#fff;background:#284757;border-color:var(--accent)}
.hskduel-ui .hsk-wizard .controls>.include-starred{flex-wrap:wrap;font-size:20px;line-height:1.5;padding:12px!important}
.wizard-starred-peek{display:block;margin:8px auto;padding:12px 20px;font-size:18px;white-space:normal;max-width:100%}
.wizard-starred-list{max-height:60dvh;overflow:auto}.wizard-starred-list>div{display:grid;grid-template-columns:1fr 1fr 2fr;gap:16px;padding:12px 0;border-bottom:1px solid var(--line)}.wizard-starred-list strong{font-size:28px}
.wizard-value small{font-size:.38em;vertical-align:middle;color:var(--accent)}
.hskduel-ui .hsk-wizard .wizard-word-preview{font-size:clamp(64px,13dvh,130px);line-height:1.25}
.wizard-starting-label{font-size:20px;text-align:center;color:var(--muted)}
.hskduel-ui .hsk-wizard .practice-options button{height:clamp(64px,13dvh,130px)!important;gap:12px!important}
.hskduel-ui .hsk-wizard .practice-options .mode-label{font-size:clamp(14px,2vw,22px)!important}
.hskduel-ui .hsk-wizard .practice-options .mode-example{font-size:clamp(26px,4dvh,40px)!important}
html[data-theme=dark].hskduel-ui .practice-options button .mode-icon{filter:brightness(0) invert(1)!important}
html[data-theme=light].hskduel-ui .practice-options button .mode-icon{filter:brightness(0)!important}
.hskduel-ui .practice-options button:hover{background:var(--soft);color:var(--fg)}
.hskduel-ui .hsk-wizard button[aria-pressed=false]:is(:hover,:focus-visible){border-color:var(--line)!important;box-shadow:none;outline:1px dashed var(--muted)}
@media(max-width:600px){.hsk-wizard .wizard-pools{gap:12px}.hsk-wizard .wizard-pools button{padding:34px 12px 20px;font-size:22px}.hskduel-ui .hsk-wizard .practice-level-chooser button{min-height:220px!important}.hskduel-ui .hsk-wizard .controls>.include-starred{font-size:16px}.wizard-starred-peek{font-size:16px}.hskduel-ui .hsk-wizard .practice-options button{gap:5px!important}}
@media(max-height:600px){.hskduel-ui .hsk-wizard .practice-level-chooser button{min-height:140px!important}.hskduel-ui .hsk-wizard .practice-level-chooser .stone-cell{width:64px;height:72px}.hskduel-ui .hsk-wizard .wizard-word-preview{font-size:54px}.wizard-value{font-size:44px}.hskduel-ui .hsk-wizard .controls{gap:8px}.hsk-wizard .wizard-pools button{min-height:64px;padding-block:14px}.hskduel-ui .hsk-wizard .practice-options button{height:56px!important}}

.hskduel-ui .hsk-wizard .wizard-pools button{min-height:clamp(86px,17dvh,150px)!important;font-size:clamp(22px,3vw,34px)!important;padding:28px 42px!important}.hskduel-ui .hsk-wizard .selection-options .include-starred{font-size:20px;white-space:normal}.hsk-wizard .wizard-fields:not([data-field="0"]) .selection-options{display:none}.hskduel-ui .hsk-wizard #word-selection{background:none!important}.hskduel-ui .hsk-wizard .controls>label{background:none!important;border:0!important}@media(max-width:600px){.hskduel-ui .hsk-wizard .wizard-pools button{padding:34px 12px 20px!important;font-size:22px!important}.hskduel-ui .hsk-wizard .selection-options .include-starred{font-size:16px}}@media(max-height:600px){.hskduel-ui .hsk-wizard .wizard-pools button{min-height:64px!important;font-size:20px!important;padding:20px!important}}
.hskduel-ui .hsk-wizard .controls input[type=range]{width:100%!important;max-width:none!important}
.hskduel-ui .hsk-wizard #start-word-preview,.hskduel-ui .hsk-wizard #duel-start-word-preview{font-size:min(clamp(64px,13dvh,130px),calc(85vw / var(--word-length,1)))!important;line-height:1.25}
@media(max-height:600px){.hskduel-ui .hsk-wizard #start-word-preview,.hskduel-ui .hsk-wizard #duel-start-word-preview{font-size:min(54px,calc(85vw / var(--word-length,1)))!important}}