:root{--color-page:#f6f7f9;--color-surface:#fff;--color-surface-soft:#f0f2f6;--color-text:#1b2232;--color-muted:#667085;--color-border:#e2e5eb;--color-primary:#2f6fed;--color-primary-dark:#1f55c7;--color-primary-soft:#e8f0fe;--color-success:#179557;--color-success-dark:#0f7443;--color-success-soft:#e6f6ed;--color-error:#d83c3c;--color-error-dark:#ae2b2b;--color-error-soft:#fdecec;--color-warning:#d98b06;--color-warning-soft:#fff5e0;--color-streak:#ff7a00;--color-heart:#ee3f62;--skill-vocabulary:#7c5cf0;--skill-listening:#0b9fd8;--skill-reading:#12a37a;--skill-speaking:#f2711c;--skill-writing:#db3f8c;--radius-small:8px;--radius:14px;--radius-large:20px;--shadow-card:0 1px 2px #1018280d, 0 1px 3px #1018280f;--shadow-raised:0 8px 24px #10182814;--font:"Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;--font-reading:"Source Serif 4", Georgia, 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h3{margin-bottom:6px}.muted{color:var(--color-muted)}.small{font-size:.875rem}.badge{background:var(--color-surface-soft);color:var(--color-muted);border-radius:999px;align-items:center;gap:4px;padding:2px 10px;font-size:.78rem;font-weight:600;display:inline-flex}.badge--primary{background:var(--color-primary-soft);color:var(--color-primary)}.badge--success{background:var(--color-success-soft);color:var(--color-success)}.badge--error{background:var(--color-error-soft);color:var(--color-error)}.badge--warning{background:var(--color-warning-soft);color:var(--color-warning)}.progress-bar{background:var(--color-surface-soft);border-radius:999px;height:12px;overflow:hidden}.progress-bar__fill{background:var(--color-success);border-radius:999px;height:100%;transition:width 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160px}.lesson-body--wide{max-width:1080px}.exercise-instruction{margin-bottom:20px;font-size:1.45rem;font-weight:700}.exercise-prompt{margin-bottom:20px;font-size:1.15rem}.option-list{gap:12px;display:grid}.option-list--two-columns{grid-template-columns:repeat(2,minmax(0,1fr))}.option-button{text-align:left;border:2px solid var(--color-border);background:var(--color-surface);cursor:pointer;border-bottom-width:4px;border-radius:14px;align-items:center;gap:14px;width:100%;padding:14px 16px;font-size:1.02rem;transition:background .12s,border-color .12s;display:flex}.option-button:hover:not(:disabled){background:var(--color-surface-soft)}.option-button:disabled{cursor:default}.option-button__key{border:2px solid 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0;padding:0;list-style:none;display:grid}.example-list li{background:var(--color-surface-soft);border-radius:10px;padding:10px 14px}.example-list .example-en{font-weight:600}.example-list .example-vi{color:var(--color-muted);font-size:.92rem}.flashcard-grid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;display:grid}.word-card{border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);padding:16px}.word-card__word{font-size:1.2rem;font-weight:700}.word-card__ipa{color:var(--color-muted);font-size:.9rem}.celebration{text-align:center;padding:48px 0}.celebration__emoji{margin-bottom:12px;font-size:4rem;animation:.5s pop}.ai-feedback{border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);margin-top:16px;padding:18px 20px}.band-circle{background:var(--color-primary);color:#fff;border-radius:50%;flex:none;place-items:center;width:64px;height:64px;font-size:1.4rem;font-weight:800;display:grid}.criteria-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:14px 0;display:grid}.criteria-item{background:var(--color-surface-soft);border-radius:10px;padding:10px 12px;font-size:.9rem}.correction{border-bottom:1px solid var(--color-border);padding:10px 0;font-size:.93rem}.correction:last-child{border-bottom:none}.correction del{color:var(--color-error)}.correction ins{color:var(--color-success);font-weight:600;text-decoration:none}.mind-map{flex-direction:column;gap:0;display:flex;position:relative}.mind-map__start{grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:32px;display:grid}.mind-map__step{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);align-items:center;gap:10px;padding:14px;font-size:.92rem;font-weight:600;display:flex}.mind-map__step-number{background:var(--color-primary);color:#fff;border-radius:50%;flex:none;place-items:center;width:30px;height:30px;font-weight:800;display:grid}.mind-map__level{grid-template-columns:240px 1fr;align-items:stretch;gap:0;display:grid;position:relative}.mind-map__spine{padding:12px 28px 12px 0;position:relative}.mind-map__spine:before{content:"";background:var(--color-border);width:3px;position:absolute;top:0;bottom:0;left:23px}.mind-map__level:first-of-type .mind-map__spine:before{top:40px}.mind-map__level:last-of-type .mind-map__spine:before{bottom:calc(100% - 40px)}.mind-map__node{align-items:flex-start;gap:14px;display:flex;position:relative}.mind-map__circle{z-index:1;background:var(--color-surface);border:3px solid var(--color-border);width:48px;height:48px;color:var(--color-muted);border-radius:50%;flex:none;place-items:center;font-weight:800;display:grid;position:relative}.mind-map__level.is-current .mind-map__circle{border-color:var(--color-primary);background:var(--color-primary);color:#fff;box-shadow:0 0 0 6px var(--color-primary-soft)}.mind-map__level.is-done .mind-map__circle{border-color:var(--color-success);background:var(--color-success);color:#fff}.mind-map__branches{grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;padding:12px 0 28px;display:grid;position:relative}.mind-map__branches:before{content:"";background:var(--color-border);width:28px;height:3px;position:absolute;top:36px;left:-28px}.mind-map__branch{background:var(--color-surface);border:1px solid var(--color-border);border-top:4px solid var(--branch-color);border-radius:12px;padding:10px 12px;font-size:.85rem}.mind-map__branch strong{font-size:.92rem;display:block}.mind-map__level.is-locked .mind-map__branch{opacity:.55}@media (width<=900px){.mind-map__level{grid-template-columns:1fr}.mind-map__branches{grid-template-columns:repeat(2,1fr);padding-left:62px}.mind-map__branches:before{display:none}.mind-map__start{grid-template-columns:repeat(2,1fr)}}.skill-tabs{flex-wrap:wrap;gap:8px;margin-bottom:24px;display:flex}.skill-tab{border:2px solid var(--color-border);background:var(--color-surface);cursor:pointer;border-radius:12px;align-items:center;gap:8px;padding:10px 16px;font-weight:600;display:flex}.skill-tab.is-active{border-color:var(--tab-color);background:color-mix(in srgb, var(--tab-color) 10%, var(--color-surface));color:var(--tab-color)}.lesson-path{flex-direction:column;align-items:center;gap:18px;padding:20px 0;display:flex}.lesson-node{align-items:center;gap:18px;width:520px;max-width:100%;display:flex}.lesson-node:nth-child(4n+2){transform:translate(60px)}.lesson-node:nth-child(4n+4){transform:translate(-60px)}.lesson-node__circle{background:var(--node-color);color:#fff;cursor:pointer;width:72px;height:72px;box-shadow:0 6px 0 color-mix(in srgb, var(--node-color) 70%, #000);border:none;border-radius:50%;flex:none;place-items:center;font-size:1.6rem;display:grid}.lesson-node__circle:disabled{background:var(--color-border);cursor:not-allowed;box-shadow:0 6px #c9ced8}.lesson-node__circle.is-current{outline:6px solid color-mix(in srgb, var(--node-color) 25%, transparent)}.lesson-node__info{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);flex:1;padding:12px 16px}.lesson-node__info h4{margin:0 0 2px}.stars{color:#f5b301;letter-spacing:2px}@media (width<=700px){.lesson-node:nth-child(n){transform:none}}.exam-shell{background:#fff;flex-direction:column;min-height:100vh;display:flex}.exam-header{color:#fff;background:#1b2232;justify-content:space-between;align-items:center;gap:16px;padding:10px 24px;font-size:.92rem;display:flex}.exam-timer{font-variant-numeric:tabular-nums;background:#ffffff1f;border-radius:8px;padding:4px 12px;font-size:1.05rem;font-weight:700}.exam-timer.is-urgent{background:var(--color-error)}.exam-subheader{border-bottom:1px solid var(--color-border);background:var(--color-surface-soft);padding:10px 24px;font-size:.92rem}.exam-split{flex:1;grid-template-columns:1fr 1fr;min-height:0;display:grid}.exam-split>*{max-height:calc(100vh - 170px);padding:24px 28px;overflow-y:auto}.exam-split>:first-child{border-right:6px solid var(--color-surface-soft)}.exam-single{flex:1;width:100%;max-width:900px;margin:0 auto;padding:24px 28px;overflow-y:auto}.exam-passage{font-family:var(--font-reading);white-space:pre-line;font-size:1.05rem;line-height:1.75}.exam-question{border-bottom:1px solid var(--color-border);padding:12px 0}.exam-question__number{border:2px solid var(--color-text);border-radius:6px;place-items:center;min-width:28px;height:28px;margin-right:10px;font-size:.85rem;font-weight:700;display:inline-grid}.exam-question label{cursor:pointer;align-items:flex-start;gap:8px;padding:4px 0;display:flex}.exam-navigator{border-top:1px solid var(--color-border);background:var(--color-surface);flex-wrap:wrap;align-items:center;gap:6px;padding:10px 24px;display:flex}.exam-navigator button{border:1px solid var(--color-border);cursor:pointer;background:#fff;border-radius:6px;min-width:34px;height:32px;font-size:.82rem}.exam-navigator button.is-answered{color:#fff;background:#1b2232;border-color:#1b2232}.result-question{border-bottom:1px solid var(--color-border);grid-template-columns:40px 1fr;gap:12px;padding:12px 0;display:grid}.result-mark{color:#fff;border-radius:50%;place-items:center;width:32px;height:32px;font-weight:800;display:grid}.result-mark.is-correct{background:var(--color-success)}.result-mark.is-wrong{background:var(--color-error)}.chart-box{border:1px solid var(--color-border);border-radius:var(--radius-small);background:#fff;padding:12px}@media (width<=900px){.exam-split{grid-template-columns:1fr}.exam-split>*{max-height:none}}.auth-page{background:radial-gradient(circle at 20% 10%, var(--color-primary-soft), transparent 50%), var(--color-page);place-items:center;min-height:100vh;padding:24px;display:grid}.auth-card{width:100%;max-width:420px}.spinner{border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;width:22px;height:22px;animation:.8s linear infinite spin;display:inline-block}.leaderboard-row{border-bottom:1px solid var(--color-border);grid-template-columns:48px 1fr auto;align-items:center;padding:14px 4px;display:grid}.leaderboard-row.is-me{background:var(--color-primary-soft);border-radius:10px}.rank{text-align:center;font-size:1.15rem;font-weight:800}.tab-switch{background:var(--color-surface-soft);border-radius:12px;gap:4px;padding:4px;display:inline-flex}.tab-switch button{cursor:pointer;color:var(--color-muted);background:0 0;border:none;border-radius:9px;padding:7px 14px;font-weight:600}.tab-switch button.is-active{background:var(--color-surface);color:var(--color-text);box-shadow:var(--shadow-card)}details>summary{cursor:pointer;font-weight:600}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shake{25%{transform:translate(-5px)}75%{transform:translate(5px)}}@keyframes pulse{50%{opacity:.7}}@keyframes pop{0%{transform:scale(.4)}80%{transform:scale(1.15)}to{transform:scale(1)}}.lesson-node__circle.is-locked{background:var(--color-border);cursor:not-allowed;box-shadow:0 6px #c9ced8}.nav-dropdown{position:relative}.nav-dropdown__toggle{white-space:nowrap;border-radius:var(--radius-small);color:var(--color-muted);cursor:pointer;background:0 0;border:none;padding:8px 12px;font-size:.95rem;font-weight:500}.nav-dropdown__toggle:hover,.nav-dropdown__toggle.active{background:var(--color-primary-soft);color:var(--color-primary)}.nav-dropdown__menu{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);min-width:200px;box-shadow:var(--shadow-raised);z-index:30;flex-direction:column;padding:6px;display:flex;position:absolute;top:calc(100% + 6px);left:0}.nav-dropdown__menu--right{left:auto;right:0}.nav-dropdown__menu a,.nav-dropdown__menu button{color:var(--color-text);text-align:left;cursor:pointer;background:0 0;border:none;border-radius:8px;padding:9px 12px;font-size:.95rem}.nav-dropdown__menu a:hover,.nav-dropdown__menu button:hover{background:var(--color-surface-soft);text-decoration:none}.nav-dropdown__menu a.active{color:var(--color-primary)}.nav-chat{position:relative}.nav-status__bananas{color:#b58100;font-weight:700}.avatar-button{cursor:pointer;background:0 0;border:none;padding:0}@media (width<=1100px){.brand__name{display:none}}.toast-stack{z-index:60;flex-direction:column;gap:8px;max-width:380px;display:flex;position:fixed;top:76px;right:20px}.toast{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow-raised);align-items:center;gap:10px;padding:12px 14px;animation:.25s toast-in;display:flex}.toast__icon{font-size:1.4rem}.toast__text{flex:1;font-size:.93rem;font-weight:600}.toast__close{color:var(--color-muted);cursor:pointer;background:0 0;border:none;font-size:1.2rem}@keyframes toast-in{0%{opacity:0;transform:translate(30px)}}.player-avatar{border-radius:50%;flex:none;place-items:center;display:inline-grid;position:relative}.player-avatar__inner{background:var(--color-surface);border-radius:50%;place-items:center;width:100%;height:100%;line-height:1;display:grid}.player-avatar__dot{border:2px solid var(--color-surface);background:#c4c9d4;border-radius:50%;width:28%;min-width:9px;height:28%;min-height:9px;position:absolute;bottom:0;right:0}.player-avatar__dot.is-online{background:#22c55e}.player-name{flex-direction:column;line-height:1.2;display:inline-flex}.player-name__title{color:var(--color-muted);font-size:.75rem;font-weight:500}.rainbow-text{background:linear-gradient(90deg,#f44336,#ff9800,#fdd835,#4caf50,#2196f3,#9c27b0);color:#0000;-webkit-background-clip:text;background-clip:text;font-weight:800}.flag-image{object-fit:cover;border-radius:6px;box-shadow:0 1px 4px #00000040}.emoji-image{display:inline-block}.modal-backdrop{z-index:50;background:#10182873;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.modal{background:var(--color-surface);border-radius:var(--radius-large);width:100%;max-width:560px;max-height:90vh;box-shadow:var(--shadow-raised);padding:28px;animation:.3s pop;overflow-y:auto}.news-item{text-align:left;border:1px solid var(--color-border);background:var(--color-surface-soft);cursor:pointer;width:100%;color:inherit;border-radius:10px;padding:10px 14px;font-size:.93rem;display:block}.news-item:hover{background:var(--color-primary-soft)}.topic-grid{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px;display:grid}.topic-tile{text-align:center;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:inherit;box-shadow:var(--shadow-card);flex-direction:column;align-items:center;gap:6px;padding:18px 14px;transition:transform .12s;display:flex}.topic-tile:hover{text-decoration:none;transform:translateY(-3px)}.topic-tile__icon{font-size:2.6rem}.flashcard{perspective:1200px;cursor:pointer;outline:none;height:420px}.flashcard__inner{width:100%;height:100%;transform-style:preserve-3d;transition:transform .5s;position:relative}.flashcard.is-flipped .flashcard__inner{transform:rotateY(180deg)}.flashcard__face{backface-visibility:hidden;border-radius:var(--radius-large);border:1px solid var(--color-border);background:var(--color-surface);box-shadow:var(--shadow-raised);flex-direction:column;justify-content:center;align-items:center;padding:24px;display:flex;position:absolute;inset:0;overflow-y:auto}.flashcard__back{justify-content:flex-start;transform:rotateY(180deg)}.flashcard__word{margin-top:14px;font-size:2.2rem;font-weight:800}.flashcard__meaning{color:var(--color-primary);margin:6px 0 12px;font-size:1.4rem;font-weight:700}.card-strip{flex-wrap:wrap;justify-content:center;gap:6px;margin-top:24px;display:flex}.card-strip__item{border:2px solid var(--color-border);background:var(--color-surface);cursor:pointer;opacity:.55;border-radius:8px;place-items:center;width:46px;height:40px;display:grid;overflow:hidden}.card-strip__item.is-seen{opacity:1}.card-strip__item.is-active{border-color:var(--color-primary);opacity:1}.shop-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;display:grid}.shop-item{text-align:center;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);box-shadow:var(--shadow-card);flex-direction:column;align-items:center;gap:8px;padding:18px 14px;display:flex}.shop-item.is-equipped{border-color:var(--color-success);box-shadow:0 0 0 3px var(--color-success-soft)}.shop-item__icon{place-items:center;min-height:60px;font-size:2.4rem;display:grid}.quest-row{border-bottom:1px solid var(--color-border);align-items:center;gap:14px;padding:12px 0;display:flex}.quest-row:last-child{border-bottom:none}.badge-grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px;display:grid}.badge-tile{text-align:center;background:var(--color-surface-soft);opacity:.65;border-radius:12px;flex-direction:column;align-items:center;gap:2px;padding:12px 8px;display:flex}.badge-tile.is-unlocked{opacity:1;background:linear-gradient(180deg, #fff7db, var(--color-surface));border:1px solid #f5d76e}.badge-tile__icon{font-size:2rem}.stat-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;display:grid}@media (width<=800px){.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}.unread-badge{background:var(--color-error);color:#fff;border-radius:999px;place-items:center;min-width:18px;height:18px;margin-left:6px;padding:0 5px;font-size:.7rem;font-weight:800;display:inline-grid}.chat-layout{grid-template-columns:260px 1fr;height:calc(100vh - 140px);min-height:480px;display:grid;overflow:hidden}.chat-main{border-left:1px solid var(--color-border);flex-direction:column;min-height:0;display:flex}.chat-header{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;gap:8px;padding:10px 14px;display:flex}.channel-list{flex-direction:column;gap:2px;padding:8px;display:flex;overflow-y:auto}.channel-item{cursor:pointer;text-align:left;background:0 0;border:none;border-radius:10px;align-items:center;gap:10px;padding:8px 10px;font-weight:600;display:flex}.channel-item:hover{background:var(--color-surface-soft)}.channel-item.is-active{background:var(--color-primary-soft);color:var(--color-primary)}.channel-item__icon{text-align:center;width:30px;font-size:1.4rem}.channel-item__name{flex:1}.chat-panel{flex-direction:column;flex:1;min-height:0;display:flex}.chat-messages{background:var(--color-page);flex-direction:column;flex:1;gap:4px;padding:14px;display:flex;overflow-y:auto}.chat-system{text-align:center;background:#fff7db;border:1px solid #f5d76e;border-radius:999px;align-self:center;margin:6px 0;padding:4px 14px;font-size:.83rem}.chat-row{align-items:flex-end;gap:8px;display:flex}.chat-row.is-mine{justify-content:flex-end}.chat-bubble-wrap{flex-direction:column;max-width:70%;display:flex}.chat-row.is-mine .chat-bubble-wrap{align-items:flex-end}.chat-bubble{background:var(--color-surface);border:1px solid var(--color-border);white-space:pre-wrap;word-break:break-word;border-radius:16px;padding:8px 12px;position:relative}.chat-row.is-mine .chat-bubble{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.chat-bubble--sticker{padding:0;font-size:3rem;background:0 0!important;border:none!important}.chat-bubble--image{padding:4px}.chat-bubble.has-effect{box-shadow:0 0 0 3px #ffd54f}.chat-effect-tag{font-size:.9rem;position:absolute;top:-10px;right:-8px}.chat-image{border-radius:12px;max-width:260px;max-height:260px;display:block}.chat-time{color:var(--color-muted);margin:1px 4px 4px;font-size:.68rem}.chat-seen{color:var(--color-muted);align-self:flex-end;font-size:.72rem}.chat-typing{color:var(--color-muted);padding:2px 14px;font-size:.8rem;font-style:italic}.chat-picker{border-top:1px solid var(--color-border);grid-template-columns:repeat(8,1fr);gap:4px;max-height:170px;padding:8px;display:grid;overflow-y:auto}.chat-picker button{cursor:pointer;background:0 0;border:none;border-radius:8px;padding:4px;font-size:1.4rem}.chat-picker button:hover{background:var(--color-surface-soft)}.chat-picker .chat-picker__sticker{font-size:2rem}.chat-input{border-top:1px solid var(--color-border);background:var(--color-surface);align-items:center;gap:4px;padding:8px;display:flex}.chat-input .text-input{border-radius:999px;padding:8px 12px}.chat-tool{cursor:pointer;background:0 0;border:none;border-radius:8px;padding:4px 6px;font-size:1.2rem}.chat-tool.is-active{background:#ffe082}.chat-widget{z-index:40;flex-direction:column;align-items:flex-end;gap:10px;display:flex;position:fixed;bottom:22px;right:22px}.chat-widget__button{background:var(--color-primary);color:#fff;cursor:pointer;border:none;border-radius:50%;width:58px;height:58px;font-size:1.6rem;position:relative;box-shadow:0 6px 20px #2f6fed66}.chat-widget__badge{margin:0;position:absolute;top:-2px;right:-2px}.chat-widget__window{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-large);width:360px;height:500px;box-shadow:var(--shadow-raised);flex-direction:column;display:flex;overflow:hidden}.effects-overlay{pointer-events:none;z-index:70;position:fixed;inset:0;overflow:hidden}.effect-particle{font-size:2rem;animation:3s ease-out forwards float-up;position:absolute;bottom:-40px}@keyframes float-up{to{opacity:0;transform:translateY(-110vh)rotate(25deg)}}@media (width<=800px){.chat-layout{grid-template-columns:1fr}.chat-layout .channel-list{max-height:160px}}.game-type-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.game-type{text-align:left;border:2px solid var(--color-border);background:var(--color-surface);cursor:pointer;border-radius:12px;flex-direction:column;align-items:flex-start;gap:2px;padding:12px;display:flex}.game-type.is-active{border-color:var(--color-primary);background:var(--color-primary-soft)}.invite-list{flex-direction:column;gap:6px;display:flex}.invite-item{border:1px solid var(--color-border);cursor:pointer;border-radius:10px;align-items:center;gap:10px;padding:6px 10px;display:flex}.invite-item.is-checked{border-color:var(--color-primary);background:var(--color-primary-soft)}.room-item{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;gap:10px;padding:10px 0;display:flex}.game-card{color:inherit;align-items:center;gap:16px;transition:transform .12s;display:flex}.game-card:hover{text-decoration:none;transform:translateY(-3px)}.game-card__icon{font-size:2.6rem}.scoreboard{flex-wrap:wrap;gap:8px;display:flex}.scoreboard__player{background:var(--color-surface);border:1px solid var(--color-border);border-radius:999px;align-items:center;gap:8px;padding:6px 12px 6px 6px;display:flex}.scoreboard__player.is-me{border-color:var(--color-primary);background:var(--color-primary-soft)}.scoreboard__player.is-out{opacity:.45}.scoreboard__name{font-size:.9rem;font-weight:600}.mark-good{color:var(--color-success);font-size:.85rem;font-weight:800}.mark-bad{color:var(--color-error);font-weight:800}.lobby-players{flex-wrap:wrap;gap:16px;margin:10px 0 20px;display:flex}.lobby-player{flex-direction:column;align-items:center;gap:4px;min-width:90px;display:flex}.lobby-player.is-waiting{opacity:.5}.countdown{text-align:center;color:var(--color-primary);font-size:8rem;font-weight:800;animation:.5s infinite pop}.power-bar{flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;margin-top:14px;display:flex}.power-button{border:2px solid var(--color-border);background:var(--color-surface);cursor:pointer;border-bottom-width:4px;border-radius:12px;flex-direction:column;align-items:center;width:58px;padding:6px 0;font-size:1.3rem;display:flex}.power-button:disabled{opacity:.4;cursor:not-allowed}.power-log{z-index:20;flex-direction:column;gap:6px;display:flex;position:fixed;bottom:20px;left:20px}.power-log__item{color:#fff;background:#1b2232d9;border-radius:999px;padding:6px 12px;font-size:.85rem}.freeze-overlay{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);color:#01579b;z-index:45;background:#4fc3f759;place-items:center;font-size:2.4rem;font-weight:800;display:grid;position:fixed;inset:0}.game-stage{position:relative}.game-question{padding:10px 0}.game-question__image{text-align:center;margin-bottom:10px}.game-question__prompt{text-align:center;margin-bottom:16px;font-size:1.3rem;font-weight:700}.game-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.game-option{color:#fff;cursor:pointer;text-align:left;border:none;border-radius:14px;align-items:center;gap:10px;padding:16px;font-size:1.05rem;font-weight:700;transition:transform 80ms,opacity .15s;display:flex;box-shadow:0 4px #0000002e}.game-option:active:not(:disabled){box-shadow:none;transform:translateY(3px)}.game-option--0{background:#e5484d}.game-option--1{background:#2f6fed}.game-option--2{background:#e8a317}.game-option--3{background:#1a9b5d}.game-option:disabled{cursor:default;opacity:.6}.game-option.is-selected{opacity:1;outline:4px solid #1b2232}.game-option.is-correct{opacity:1;outline:4px solid #22c55e;box-shadow:0 0 0 8px #22c55e40}.game-option.is-wrong{opacity:1;filter:grayscale(.6);outline:4px solid #1b2232}.game-option__key{background:#ffffff40;border-radius:7px;flex:none;place-items:center;width:26px;height:26px;font-size:.8rem;display:grid}.timer-bar{background:var(--color-surface-soft);border-radius:999px;height:10px;margin:6px 0 14px;position:relative;overflow:hidden}.timer-bar__fill{border-radius:999px;height:100%;transition:width .1s linear}.timer-bar__label{font-size:.7rem;font-weight:700;position:absolute;top:-3px;right:6px}.points-pop{text-align:center;margin-top:10px;font-size:1.6rem;font-weight:800;animation:.35s pop}.points-pop.is-good{color:var(--color-success)}.points-pop.is-bad{color:var(--color-error)}.chain-list{flex-wrap:wrap;gap:6px;margin:12px 0;display:flex}.chain-word{background:var(--color-surface-soft);border-radius:999px;padding:4px 12px;font-weight:600}.chain-word--me{background:var(--color-primary-soft);color:var(--color-primary)}.chain-word--computer{background:var(--color-warning-soft);color:#8a5800}.chain-word--start{background:var(--color-success-soft);color:var(--color-success)}.chain-letter{background:var(--color-primary);color:#fff;border-radius:12px;place-items:center;width:44px;height:44px;font-size:1.6rem;display:inline-grid}.wordle-grid{flex-direction:column;align-items:center;gap:6px;margin:16px 0;display:flex}.wordle-row{gap:6px;display:flex}.wordle-cell{border:2px solid var(--color-border);text-transform:uppercase;background:var(--color-surface);border-radius:8px;place-items:center;width:56px;height:56px;font-size:1.7rem;font-weight:800;display:grid}.wordle-cell.is-filled{border-color:#8a93a6}.wordle-cell.is-correct,.wordle-key.is-correct{color:#fff;background:#1a9b5d;border-color:#1a9b5d}.wordle-cell.is-present,.wordle-key.is-present{color:#fff;background:#e8a317;border-color:#e8a317}.wordle-cell.is-absent,.wordle-key.is-absent{color:#fff;background:#8a93a6;border-color:#8a93a6}.wordle-keyboard{flex-direction:column;align-items:center;gap:6px;display:flex}.wordle-keyboard__row{gap:5px;display:flex}.wordle-key{background:var(--color-surface-soft);text-transform:uppercase;cursor:pointer;border:none;border-radius:8px;min-width:38px;height:50px;font-weight:700}.wordle-key.is-wide{min-width:60px;font-size:1.1rem}.wordle-share{margin:4px 0;font-family:inherit;font-size:.85rem;line-height:1.15}.boss-card{text-align:center;border-radius:var(--radius-large);color:#fff;background:linear-gradient(#2b1b3d,#4a2565);margin-bottom:14px;padding:24px;position:relative}.boss-card .muted{color:#d9c7ee}.boss-card__emoji{font-size:5rem;line-height:1.1}.boss-card.is-hit .boss-card__emoji{filter:brightness(1.6)saturate(.4);animation:.3s shake}.boss-card.is-defeated .boss-card__emoji{filter:grayscale()}.boss-hp{background:#ffffff26;border-radius:999px;height:22px;margin-top:12px;position:relative;overflow:hidden}.boss-hp__fill{background:linear-gradient(90deg,#ef4444,#f97316);height:100%;transition:width .5s}.boss-hp__label{place-items:center;font-size:.8rem;font-weight:800;display:grid;position:absolute;inset:0}.boss-damage{color:#fde047;font-size:2rem;font-weight:800;animation:.8s ease-out forwards float-up;position:absolute;top:20px;right:30%}