/* OstéoLab · a calm study studio with a more playful arena. */
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.duel-result-hero{text-align:center;background:radial-gradient(ellipse at top,#e2eecd,#f0f2e7);border:1px solid #d4e1c7;border-radius:23px;padding:33px}.result-medal{display:grid;place-items:center;font-size:42px;width:78px;height:78px;margin:0 auto 22px;background:#dcebae;border:5px solid #f7fadf;border-radius:50%;color:#6a8336;box-shadow:0 0 0 1px #c4d898}.duel-result-hero h2{font-size:52px;font-variant-numeric:tabular-nums;letter-spacing:-2px;line-height:1.2;margin:19px 0 10px}.duel-result-hero h2 i{font-style:normal;color:#8d9b71;font-weight:400;margin:0 12px}.duel-result-hero p{font-size:15px;font-weight:600}.duel-result-hero p span{font-weight:400;color:#819070;margin:0 10px;font-size:12px}.result-chips{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:18px}.result-chips>span{background:#fffef8c0;border:1px solid #d7dfc8;padding:7px 13px;border-radius:8px;font-size:12px;color:#5f7450}.result-actions{margin:23px 0}.result-question{margin:13px 0;padding:18px 22px}.result-question summary{display:flex;gap:13px;align-items:center;cursor:pointer;list-style:none;font-size:14px}.result-question summary>b{margin-left:auto;font-size:12px;white-space:nowrap;color:#738453}.result-dot{display:grid;place-items:center;width:28px;height:28px;min-width:28px;border-radius:8px;background:#f8ead6;color:#b48d51}.result-dot.is-right{background:#e4efcf;color:#607f34}.result-detail{padding:14px 42px 5px;font-size:14px;line-height:1.75}.friends-banner{display:grid;grid-template-columns:1fr 1.2fr;gap:30px;align-items:center;border:1px solid #dbe4d2;border-radius:22px;padding:31px;background:#eaf0df;margin-bottom:26px}.friends-banner h2{font-size:28px;line-height:1.25;margin:15px 0}.friends-banner p{font-size:12px;color:#6a7d5d}.friends-banner>form{padding:25px;border:1px solid #d8e0ca;border-radius:14px;background:#fcfdf6}.friends-banner label{display:block;font-size:13px;font-weight:600;margin-bottom:13px}.friends-banner .code-entry{flex-direction:column}.friends-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:10px 0 24px}.friend-card{text-align:center;padding:27px 18px;background:#fffef9;min-width:0}.friend-card .avatar{width:60px;height:60px;border-radius:20px;font-size:22px;background:#e4eacb;color:#678444}.friend-card h3{font-size:20px;margin-bottom:8px;overflow-wrap:anywhere}.friend-card p{font-size:11px;margin-top:0}.friend-card .actions{justify-content:center;margin-top:21px}.friend-card .actions button{font-size:12px;padding:10px 12px}.invitation-row,.request-row{display:flex;gap:15px;align-items:center;padding:18px 22px;background:#fffef9;border:1px solid #e1e6d8;border-radius:16px;margin:12px 0;font-size:14px}.invitation-row>div,.request-row>span:not(.avatar){flex:1;min-width:0}.request-row small,.invitation-row small{display:block;font-size:11px;color:#7f8b75;margin-top:4px}.invitation-row button,.request-row button{font-size:12px}.card-grid .box{background:#fffef9}.flashcard{border-color:#d5e2ce;box-shadow:0 12px 35px #213d2608;border-radius:24px}.flashcard h2{line-height:1.5}.learning-figure{border-color:#dce5d4;background:#fff;border-radius:15px}.flashcard .learning-figure .illustration-zoom{background:white}.question{letter-spacing:-.5px}.answers .answer{border-radius:15px}.hero-art{border-radius:20px}.check-grid label{line-height:1.5}.inspector{background:#fffef9;border:1px solid #e1e8d8;border-radius:14px;padding:15px}.viewer{border-radius:18px;background:radial-gradient(ellipse at 50% 43%,#304b4b,#142f32)}.atlas-left .eyebrow{margin-bottom:15px}.viewer .loading{padding:35% 20px 0}.parts button{border-radius:7px}.note{border-radius:12px}.box .actions{flex-wrap:wrap}.image-dialog{z-index:15}.image-dialog::backdrop{background:#0d2927c9}.toast{border-radius:14px}
@media(min-width:1500px){.studio-hero h2{font-size:56px}.studio-hero{padding:44px 0 44px 44px}.hero-atlas-art>svg{height:370px}.studio-hero p{font-size:16px}.activity-card h3{font-size:21px}}
@media(max-width:1250px){main{padding:28px 24px}.studio-hero{grid-template-columns:1.4fr .7fr;padding-left:27px}.studio-hero h2{font-size:37px}.hero-atlas-art>svg{height:290px}.atlas-floating-tag{right:5px;font-size:6px;padding:9px}.activity-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.activity-card{min-height:228px}.activity-card h3{min-height:0;margin-top:17px}.dashboard-stats{grid-template-columns:repeat(2,1fr)}.studio-hero p{font-size:13px}.arena-welcome{padding:29px;grid-template-columns:1.2fr .8fr}.arena-welcome h2{font-size:35px}.player-orb{width:80px;height:112px;font-size:24px}.versus-art{gap:10px}.orbit-caption{font-size:7px}.lobby-code>strong{font-size:34px}.friends-grid{grid-template-columns:repeat(2,1fr)}.duel-player{padding:15px}.duel-player>b{font-size:22px}}
@media(max-width:1000px){.hero-atlas-art{display:none}.studio-hero{grid-template-columns:1fr;padding:31px}.studio-hero h2{font-size:42px}.studio-hero p{max-width:560px}.arena-panels,.lobby-grid,.friends-banner{grid-template-columns:1fr}.arena-welcome{grid-template-columns:1fr .7fr}.arena-welcome h2{font-size:33px}.lobby-code>strong{font-size:45px}.feature-trio{gap:12px}.feature-trio .box{padding:20px}.feature-trio h3{font-size:16px}.duel-player{gap:9px;padding:14px 11px}.duel-player>.avatar{width:37px;height:37px;border-radius:10px}.duel-player strong{font-size:13px}.duel-player>b{font-size:20px}.duel-scoreboard{gap:7px;grid-template-columns:1fr 28px 1fr}.result-detail{padding:14px 0 5px}.friends-banner .code-entry{flex-direction:row}.friends-banner>form{padding:20px}}
@media(max-width:850px){aside{padding:17px 15px 12px;position:static}.tagline,.sidebar-bottom{display:none}.brand{font-size:20px}.logo{font-size:25px;border-radius:9px}.nav-icon{width:18px;height:18px}nav{overflow:auto;margin-top:15px;gap:5px;scrollbar-width:thin}nav button{padding:10px 13px;min-height:38px;gap:8px}nav .nav-text{display:inline;font-size:11px}nav .nav-new{display:none}header{height:auto;min-height:58px;padding:10px 20px}header>div{display:flex;align-items:center;justify-content:space-between;gap:10px}header #saved{font-size:10px;max-width:65%}header #account{font-size:11px;max-width:40%}main{padding:24px 20px}.workspace{margin:0}.studio-hero{grid-template-columns:1.3fr .7fr;min-height:330px}.hero-atlas-art{display:flex}.studio-hero h2{font-size:39px}.hero-atlas-art>svg{height:270px}.atlas-floating-tag{display:none}.dashboard-bottom{grid-template-columns:1fr 1fr}.arena-welcome h2{font-size:37px}.versus-art{min-height:240px}.duel-options{grid-template-columns:1fr 1fr}.duel-option{padding:16px;font-size:13px;gap:10px}.section-heading>span{font-size:10px}.duel-question{padding:23px}.duel-question h2{font-size:23px}.duel-scoreboard{grid-template-columns:1fr 30px 1fr}.lobby-grid{grid-template-columns:1fr 1fr}.lobby-settings{padding:23px}.lobby-code{padding:25px 16px}.lobby-code>strong{font-size:31px}.lobby-bottom{padding:20px}.feature-trio{grid-template-columns:repeat(3,1fr)}footer{padding:20px}.subtitle{line-height:1.6}.match-toolbar{flex-wrap:wrap}}
@media(max-width:600px){h1{font-size:25px;line-height:1.25}.subtitle{font-size:11px;margin-bottom:20px}.studio-hero{display:block;padding:27px 24px;min-height:0}.studio-hero h2{font-size:37px}.studio-hero .live-label{font-size:8px}.studio-hero p{font-size:13px}.hero-atlas-art{display:none}.hero-proof{gap:12px;font-size:8px;margin-top:24px}.studio-hero .actions{gap:9px}.studio-hero .large{font-size:13px;padding:14px 17px}.hero-outline{font-size:12px}.dashboard-stats{gap:9px;margin-top:15px}.stat-tile{padding:16px 12px;gap:9px}.stat-icon{width:33px;height:36px;border-radius:10px}.stat-tile strong{font-size:23px}.stat-tile div>span{font-size:9px}.activity-grid{gap:12px}.activity-card{padding:17px 15px;min-height:260px}.activity-top{font-size:7px;gap:4px;flex-direction:column-reverse;align-items:flex-start}.activity-top .nav-icon{padding:9px;width:20px;height:20px;margin-bottom:10px}.activity-card h3{font-size:17px;line-height:1.3}.activity-card p{font-size:11px}.activity-card>strong{font-size:10px}.activity-card>strong>span{font-size:18px}.section-heading{margin-top:26px}.section-heading h2{font-size:20px}.section-heading>span{max-width:100px;text-align:right}.dashboard-bottom{grid-template-columns:1fr;gap:15px}.daily-card,.study-note{padding:24px}.arena-welcome{grid-template-columns:1fr;padding:26px}.arena-welcome .versus-art{display:none}.arena-welcome h2{font-size:37px}.arena-panels{grid-template-columns:1fr;gap:0}.feature-trio{grid-template-columns:1fr;gap:12px}.feature-trio .box{padding:20px;display:grid;grid-template-columns:34px 1fr;column-gap:15px}.feature-trio .feature-symbol,.feature-trio .feature-number{grid-row:1/3;align-self:center}.feature-trio h3{margin:0 0 5px}.feature-trio p{margin:0;font-size:12px}.history-row{padding:15px 12px;gap:10px}.history-row>b{font-size:14px}.history-row strong{font-size:12px}.history-row small{font-size:9px}.history-mark{width:32px;height:34px;font-size:17px}.code-entry{flex-direction:column}.code-entry button{font-size:13px}.mini-stat-row{margin:20px 0 15px}.duel-scoreboard{grid-template-columns:1fr 23px 1fr;gap:5px}.duel-player{flex-wrap:wrap;padding:13px 10px;gap:8px}.duel-player>div{min-width:0}.duel-player>.avatar{width:30px;height:32px;font-size:11px;border-radius:9px}.duel-player>b{display:block;width:100%;padding-left:38px;font-size:23px}.duel-player small{font-size:9px}.duel-player strong{font-size:11px}.versus-small{font-size:14px}.lobby-grid{grid-template-columns:1fr;gap:0}.lobby-code>strong{font-size:41px}.lobby-settings h2{font-size:22px}.lobby-bottom .actions{flex-direction:column}.lobby-bottom .actions button{width:100%}.match-toolbar{gap:5px;margin-bottom:20px}.match-toolbar #connection-state{order:5;flex-basis:100%;text-align:left;margin:4px 0;font-size:10px}.match-toolbar .quiet-button{font-size:11px;margin-left:auto}.match-toolbar .pill{font-size:8px}.duel-question{padding:20px 16px;border-radius:18px}.duel-question h2{font-size:20px;line-height:1.5}.duel-options{grid-template-columns:1fr;gap:10px}.duel-option{min-height:75px;padding:15px;font-size:13px}.duel-option .option-shape{font-size:20px;width:22px}.duel-answer-status{font-size:12px;line-height:1.6;flex-wrap:wrap}.duel-correction{padding:17px}.duel-correction p{font-size:13px}.duel-correction>strong{font-size:16px}.countdown-stage{min-height:320px}.countdown-stage>strong{font-size:130px}.duel-result-hero{padding:26px 18px}.duel-result-hero h2{font-size:41px}.duel-result-hero h2 i{margin:0 5px}.result-chips>span{font-size:11px}.result-question{padding:16px 13px}.result-question summary{font-size:12px;gap:8px;line-height:1.6}.result-question summary>b{font-size:10px}.result-actions{flex-direction:column;align-items:stretch}.friends-grid{grid-template-columns:1fr 1fr;gap:12px}.friend-card{padding:22px 10px}.friend-card h3{font-size:16px}.friend-card .actions{gap:5px}.friend-card .actions .primary{font-size:10px;padding:9px 8px}.friend-card .actions button{padding:9px}.friends-banner{padding:25px 20px;gap:15px}.friends-banner h2{font-size:26px}.friends-banner .code-entry{flex-direction:column}.friends-banner>form{padding:17px}.request-row,.invitation-row{flex-wrap:wrap;padding:17px;gap:10px}.request-row>span:not(.avatar),.invitation-row>div{min-width:calc(100% - 65px)}.request-row button,.invitation-row button{flex:1}.friends-grid>.empty{grid-column:1/-1}.hero-proof span{line-height:1.5}.match-history>.empty{margin:0}.image-dialog{padding:12px}.duel-chapters{padding:13px}main{padding:21px 15px}.note{font-size:12px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.activity-card:hover,.duel-option:hover{transform:none!important}}
/* Clear revision hierarchy and independent friends dialog. */
.revision-tabs{display:flex;gap:8px;border-bottom:1px solid var(--line,#d9e2d9);padding-bottom:14px;margin-bottom:26px;flex-wrap:wrap}.revision-tabs button[aria-current]{background:#17695e;color:white;border-color:#17695e}.card-selection{margin-top:22px}.card-selection h2{margin-top:0}.card-selection input[type=search]{width:100%}.review-label{color:#9b4027}.friends-open{display:flex;align-items:center;gap:8px;padding:9px 14px}.friends-open svg{width:19px;height:19px}#friends-dialog{width:min(860px,94vw);max-height:85vh;overflow:auto}#friends-dialog .request-row{flex-wrap:wrap}#friend-error,#folder-error{color:#9b4027}#folder-search{margin-bottom:12px;width:100%}.cards-pick label[hidden]{display:none}.atlas-quiz-bar{background:#e6f4fa;border:1px solid #aaceda;border-radius:15px;padding:18px;margin:15px 0}.atlas-quiz-bar h2{margin:5px 0}.atlas-quiz-active .atlas-left #partsearch,.atlas-quiz-active .atlas-left #parts{display:none}.atlas-quiz-active .inspector{display:none}.atlas-quiz-active .atlas-layout{grid-template-columns:190px minmax(0,1fr)}.atlas-scope{padding:12px 16px;border:1px solid #e0c789;border-radius:12px;background:#fff9e9;margin-bottom:16px}.atlas-scope p{margin:0}.atlas-quiz-feedback{font-weight:600;margin-top:12px}.anatomy-help{font-size:12px;color:#4e615f;line-height:1.5}
@media(max-width:850px){.friends-open{font-size:12px;padding:8px}.atlas-quiz-active .atlas-layout{grid-template-columns:1fr}.revision-tabs{gap:5px}.revision-tabs button{font-size:12px;padding:10px}}
.atlas-quiz-active #parts,.atlas-quiz-active #partsearch,.atlas-quiz-active #restore,.atlas-quiz-active #inspector,.atlas-quiz-active .context-control{display:none!important}.atlas-quiz-active .atlas-layout{grid-template-columns:180px minmax(0,1fr)}.atlas-quiz-panel{background:#fff;border:1px solid #bfd9d0;border-radius:16px;padding:18px;margin-bottom:16px}.atlas-quiz-panel h2{font-size:23px;margin:8px 0}.atlas-quiz-panel p{margin:8px 0}.atlas-quiz-active .viewer{min-height:570px}@media(max-width:800px){.atlas-quiz-active .atlas-layout{grid-template-columns:1fr}.atlas-quiz-active .viewer{min-height:420px}}