:root{--blue:#1664f5;--navy:#0b1935;--ink:#1d2a44;--muted:#6d7890;--line:#dfe7f1;--green:#1db67a;--bg:#f5f8fc}*{box-sizing:border-box}html,body{height:100%;overflow:hidden}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.45 "DM Sans",sans-serif}.glow{position:fixed;inset:0;z-index:-1;background:radial-gradient(circle at 82% 16%,#dbeaff 0,transparent 33%),radial-gradient(circle at 12% 88%,#fff1c9 0,transparent 27%)}button,input{font:inherit}button{cursor:pointer}header{height:68px;padding:0 clamp(16px,5vw,70px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #dfe7f1;background:#ffffffc7;backdrop-filter:blur(18px)}.brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--navy);font:800 1.05rem "Manrope"}.brand>span{width:35px;height:35px;border-radius:11px;background:linear-gradient(145deg,#2877ff,#0b4dcc);color:#fff;display:grid;place-items:center;box-shadow:0 8px 20px #1664f538}.brand em{color:var(--blue);font-style:normal}.tools{display:flex;gap:7px}.tools button{height:38px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#55627a;padding:0 12px;font-weight:700}.tools .help{background:var(--navy);border-color:var(--navy);color:#fff}main{height:calc(100dvh - 68px);max-width:1180px;margin:auto;padding:clamp(16px,3vh,28px) 22px;display:grid;grid-template-columns:.74fr 1.26fr;gap:clamp(28px,6vw,78px);align-items:center}.welcome{max-width:430px}.live{display:inline-flex;align-items:center;gap:8px;color:#167b55;background:#e7f8f1;border:1px solid #c9efdf;border-radius:99px;padding:6px 11px;font-size:.78rem;font-weight:700}.live i{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px #1db67a1c}.welcome h1{margin:18px 0 16px;color:var(--navy);font:800 clamp(2.7rem,5vw,4.5rem)/1.02 "Manrope";letter-spacing:-.055em}.welcome h1 span{color:var(--blue)}.welcome>p{font-size:1.05rem;color:var(--muted);max-width:390px}.mini-proof{display:flex;gap:18px;margin-top:25px;color:#536079;font-size:.84rem;font-weight:600}.mini-proof span:first-child::first-letter,.mini-proof span:last-child::first-letter{color:var(--green)}.app{height:min(650px,calc(100dvh - 104px));min-height:500px;background:#fff;border:1px solid #dfe8f4;border-radius:27px;box-shadow:0 28px 80px #18437c24;overflow:hidden;display:grid;grid-template-rows:72px 4px 1fr 61px 31px;position:relative}.app:before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,var(--blue),#72a5ff,#5bd5ad)}.app-head{display:flex;align-items:center;padding:0 22px}.avatar{position:relative;width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:var(--blue);color:#fff;font:800 1rem "Manrope"}.avatar i{position:absolute;right:-2px;bottom:-2px;width:10px;height:10px;border:2px solid #fff;border-radius:50%;background:var(--green)}.app-head>div:nth-child(2){display:flex;flex-direction:column;margin-left:11px}.app-head b{font-family:"Manrope"}.app-head span{font-size:.74rem;color:var(--muted)}.restart-top{margin-left:auto;width:36px;height:36px;border:0;border-radius:10px;background:#f0f4f9;color:#69768b;font-size:1.15rem}.progress{background:#edf2f8}.progress i{display:block;height:100%;width:20%;background:linear-gradient(90deg,var(--blue),#6e9fff);transition:.4s}.stage{display:flex;flex-direction:column;justify-content:center;padding:clamp(18px,4vh,36px) clamp(18px,4vw,38px);overflow:hidden;animation:enter .3s ease}.step-count{font-size:.72rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);margin-left:42px}.bot-line{display:flex;align-items:flex-start;gap:11px;margin:9px 0}.bot-mini{flex:0 0 31px;height:31px;border-radius:10px;background:var(--blue);color:#fff;display:grid;place-items:center;font:800 .75rem "Manrope"}.bot-line p{margin:0;color:var(--navy);font:800 clamp(1.35rem,2.4vw,2rem)/1.2 "Manrope";letter-spacing:-.035em}.hint{margin:0 0 16px 42px;color:var(--muted);font-size:.86rem}.answers{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-left:42px}.answers button{min-height:58px;border:1px solid var(--line);border-radius:13px;background:#fff;text-align:left;padding:11px 13px;display:flex;flex-direction:column;color:var(--ink);transition:.18s}.answers button:hover,.answers button:focus{border-color:var(--blue);background:#f5f9ff;transform:translateY(-2px);outline:0;box-shadow:0 7px 22px #1664f516}.answers b{font-size:.86rem}.answers small{color:var(--muted);font-size:.7rem}.composer{border-top:1px solid #e7edf5;display:flex;align-items:center;gap:7px;padding:8px 12px}.composer input{flex:1;min-width:0;border:0;outline:0}.composer button{border:0;width:38px;height:38px;border-radius:11px}.composer button:first-child{background:#eff3f8;color:#60708a;font-size:1.2rem}.composer button:last-child{background:var(--blue);color:#fff;font-size:1.1rem}.optional{border:0;border-top:1px solid #f0f3f7;background:#fff;color:#758198;font-size:.72rem}.result-title{color:var(--navy);font:800 clamp(1.5rem,2.8vw,2.2rem)/1.14 "Manrope";letter-spacing:-.035em;margin:4px 0}.result-copy{color:var(--muted);font-size:.86rem;margin:0}.result-actions{display:flex;gap:8px;margin-top:16px}.primary,.secondary{border:0;border-radius:12px;padding:12px 15px;font-weight:700}.primary{background:var(--blue);color:#fff;box-shadow:0 9px 24px #1664f52b}.secondary{background:#edf3fc;color:var(--blue)}.guide-card{border:1px solid var(--line);border-radius:16px;padding:16px;background:#fbfdff}.guide-top{display:flex;align-items:center;gap:10px}.guide-number{width:34px;height:34px;border-radius:10px;background:#e9f2ff;color:var(--blue);display:grid;place-items:center;font-weight:800}.guide-top>div{display:flex;flex-direction:column}.guide-top b{font-family:"Manrope"}.guide-top small{color:var(--muted)}.guide-card>p{color:#59677f;font-size:.84rem;margin:13px 0}.guide-nav{display:flex;align-items:center;gap:8px}.guide-nav button,.official-link{border:0;border-radius:10px;padding:10px 13px;font-weight:700;text-decoration:none;font-size:.82rem}.guide-nav button{background:#edf2f8;color:#5d6b81}.guide-nav .next,.official-link{background:var(--blue);color:#fff}.guide-dots{margin-left:auto;color:#8e9aac;font-size:.72rem}.done-box{text-align:center}.done-icon{width:48px;height:48px;border-radius:16px;background:#e7f8f1;color:var(--green);display:grid;place-items:center;margin:0 auto 10px;font-size:1.4rem}.modal-wrap{position:fixed;inset:0;z-index:30;background:#0b1935bd;backdrop-filter:blur(8px);display:grid;place-items:center;padding:16px;opacity:0;visibility:hidden;transition:.25s}.modal-wrap.open{opacity:1;visibility:visible}.modal{width:min(460px,100%);background:#fff;border-radius:24px;padding:31px;position:relative;box-shadow:0 35px 90px #06112870}.close{position:absolute;right:15px;top:14px;border:0;border-radius:50%;width:36px;height:36px;background:#f0f4f8;font-size:1.3rem;color:#65738b}.modal>span{color:var(--blue);font-size:.7rem;font-weight:800;letter-spacing:.11em}.modal h2{font:800 1.8rem "Manrope";color:var(--navy);margin:6px 0}.modal>p{color:var(--muted)}.modal form{display:grid;gap:11px}.modal label{display:grid;gap:5px;font-size:.82rem;font-weight:700}.modal input{border:1px solid var(--line);border-radius:11px;padding:12px}.modal form button{border:0;border-radius:11px;background:var(--blue);color:#fff;padding:13px;font-weight:700}.toast{position:fixed;left:50%;bottom:18px;z-index:40;transform:translate(-50%,18px);opacity:0;visibility:hidden;background:var(--navy);color:#fff;padding:11px 16px;border-radius:11px;font-size:.84rem;transition:.25s}.toast.show{opacity:1;visibility:visible;transform:translate(-50%,0)}body.large{font-size:18px}@keyframes enter{from{opacity:0;transform:translateY(7px)}}
@media(max-width:780px){header{height:58px;padding:0 12px}.tools button i,.tools .help{display:none}.brand{font-size:.96rem}.brand>span{width:32px;height:32px}main{height:calc(100dvh - 58px);display:block;padding:10px 12px}.welcome{height:114px;max-width:none;display:grid;grid-template-columns:1fr auto;align-items:center;column-gap:8px}.live{display:none}.welcome h1{font-size:1.65rem;margin:0}.welcome h1 br{display:none}.welcome>p{font-size:.78rem;margin:3px 0;grid-column:1}.mini-proof{margin:0;grid-column:2;grid-row:1/3;display:none}.app{height:calc(100dvh - 182px);min-height:0;border-radius:21px;grid-template-rows:63px 4px 1fr 56px 29px}.app-head{padding:0 15px}.stage{padding:14px 15px}.step-count,.hint,.answers{margin-left:0}.bot-line p{font-size:1.38rem}.hint{margin-bottom:11px}.answers{grid-template-columns:1fr}.answers button{min-height:50px;padding:8px 11px}.answers small{display:none}.composer{padding:6px 9px}.optional{font-size:.68rem}.guide-card{padding:13px}.guide-card>p{margin:9px 0}.result-actions{margin-top:10px}.modal{padding:26px 20px}}
@media(max-height:650px){.welcome{display:none}main{height:calc(100dvh - 58px);padding:8px 12px}.app{height:100%;max-width:720px;margin:auto}.stage{padding-top:10px;padding-bottom:10px}.answers button{min-height:45px}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media(max-width:780px){.welcome{height:104px}.app{height:calc(100dvh - 182px)}}
.menu-answers button{min-height:72px}.benefit-list{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin:15px 0}.benefit-list span{background:#f2f7ff;border:1px solid #dfebfb;border-radius:10px;padding:9px;color:#506079;font-size:.72rem;font-weight:700}.benefit-list span::first-letter{color:var(--green)}
@media(max-width:780px){.benefit-list{grid-template-columns:1fr}.benefit-list span{padding:7px}.menu-answers button{min-height:62px}}
.bot-line .result-copy{font-family:"DM Sans",sans-serif;font-size:.86rem;font-weight:400;line-height:1.45;letter-spacing:0;color:var(--muted)}
@media(max-width:780px){.bot-line>div{min-width:0}.bot-line .result-title{font-size:1.28rem;line-height:1.18;margin:2px 0 5px}.bot-line .result-copy{font-size:.78rem;line-height:1.38}.benefit-list{gap:5px;margin:9px 0}.benefit-list span{font-size:.68rem;line-height:1.25}.benefit-list+.result-actions{display:grid;grid-template-columns:auto 1fr;gap:6px;margin-top:8px}.benefit-list+.result-actions button{padding:9px 10px;font-size:.75rem;white-space:normal}.stage:has(.benefit-list){padding-top:10px;padding-bottom:10px}.stage:has(.benefit-list) .bot-line{margin:5px 0}}
@media(max-width:380px){.bot-line .result-title{font-size:1.12rem}.bot-line .result-copy{font-size:.73rem}.benefit-list span{padding:6px}.benefit-list+.result-actions button{font-size:.7rem;padding:8px}}
/* Mobile: preserve the brand introduction and the assistant in one viewport. */
@media(max-width:780px){html,body{height:100%;height:100dvh;overflow:hidden}body{font-size:15px}.glow{background:linear-gradient(180deg,#f5f9ff,#eef4fc)}header{height:54px;padding:0 max(12px,env(safe-area-inset-left));background:#fff}.brand{font-size:.92rem}.brand>span{width:30px;height:30px;border-radius:9px}.tools{gap:5px}.tools button{height:34px;padding:0 10px;font-size:.78rem}.tools #listen{display:none}main{height:calc(100dvh - 54px);width:100%;padding:7px max(7px,env(safe-area-inset-right)) max(7px,env(safe-area-inset-bottom)) max(7px,env(safe-area-inset-left));display:grid;grid-template-rows:auto minmax(0,1fr);gap:7px}.welcome{display:grid!important;height:auto;min-height:74px;max-width:none;padding:9px 12px;border:1px solid #dfe8f4;border-radius:15px;background:#ffffffc9;grid-template-columns:minmax(0,1fr) auto;grid-template-rows:auto auto;align-items:center;column-gap:10px}.welcome .live{display:none}.welcome h1{grid-column:1;margin:0;font-size:clamp(1.22rem,6vw,1.55rem);line-height:1.03}.welcome h1 br{display:none}.welcome>p{grid-column:1;margin:3px 0 0;max-width:440px;font-size:.73rem;line-height:1.25}.mini-proof{grid-column:2;grid-row:1/3;display:grid;gap:3px;margin:0;font-size:.68rem;white-space:nowrap}.app{width:100%;height:auto;min-height:0;max-height:none;margin:0;border-radius:17px;grid-template-rows:58px 4px minmax(0,1fr) 52px 27px;box-shadow:0 14px 45px #18437c1c}.app-head{padding:0 13px}.avatar{width:36px;height:36px;border-radius:11px}.restart-top{width:34px;height:34px}.stage{min-height:0;justify-content:flex-start;overflow-y:auto;overflow-x:hidden;padding:clamp(14px,3.5vh,24px) 14px 12px;-webkit-overflow-scrolling:touch}.stage::-webkit-scrollbar{width:3px}.stage::-webkit-scrollbar-thumb{background:#d7e1ed;border-radius:4px}.step-count{font-size:.7rem;margin-left:0}.bot-line{gap:8px;margin:7px 0}.bot-mini{flex-basis:27px;height:27px;border-radius:8px}.bot-line>p{font-size:1.28rem;line-height:1.18}.hint{font-size:.8rem;line-height:1.35;margin:0 0 11px}.answers{grid-template-columns:1fr;gap:7px;margin:0}.answers button,.menu-answers button{min-height:50px;padding:9px 11px;border-radius:11px}.answers b{font-size:.86rem}.answers small{display:block;font-size:.75rem;line-height:1.25;margin-top:1px}.composer{padding:6px 8px}.composer input{font-size:16px}.composer button{width:36px;height:36px}.optional{font-size:.7rem}.result-actions{display:grid;grid-template-columns:1fr 1fr;gap:6px;width:100%}.result-actions button{padding:10px 8px;font-size:.76rem;white-space:normal}.guide-card{padding:12px}.guide-card>p{font-size:.78rem;line-height:1.4;margin:8px 0}.guide-nav{gap:5px;flex-wrap:wrap}.guide-nav button,.official-link{padding:8px 9px;font-size:.75rem}.guide-dots{font-size:.7rem}.benefit-list{grid-template-columns:1fr;gap:5px;margin:8px 0}.benefit-list span{font-size:.75rem;padding:6px 8px}.modal-wrap{padding:10px}.modal{max-height:calc(100dvh - 20px);overflow-y:auto;padding:25px 18px;border-radius:18px}.modal h2{font-size:1.5rem}}
@media(max-width:360px),(max-height:590px){.app{grid-template-rows:52px 3px minmax(0,1fr) 48px 25px}.stage{padding-top:10px;padding-bottom:8px}.app-head{padding:0 10px}.avatar{width:33px;height:33px}.bot-line>p{font-size:1.12rem}.hint{font-size:.72rem;margin-bottom:8px}.answers{gap:5px}.answers button,.menu-answers button{min-height:44px;padding:7px 9px}.answers small{font-size:.62rem}.benefit-list{margin:6px 0}.benefit-list span{padding:5px 7px}.bot-line .result-title{font-size:1.05rem}.bot-line .result-copy{font-size:.7rem}.result-actions{margin-top:7px}}
.truth-note{display:flex;gap:8px;align-items:flex-start;background:#fff8e6;border:1px solid #f4dfaa;border-radius:11px;padding:9px 11px;color:#67562f;font-size:.72rem;line-height:1.35}.truth-note b{color:#8b6712;white-space:nowrap}.benefit-actions{margin-top:9px}
@media(max-width:780px){.truth-note{font-size:.68rem;padding:7px 8px}.truth-note b{font-size:.66rem}.benefit-actions{display:grid;grid-template-columns:auto 1fr;gap:6px;margin-top:7px}.benefit-actions button{padding:9px 8px;font-size:.72rem}.stage:has(.truth-note){padding-top:9px;padding-bottom:8px}}
@media(max-width:360px),(max-height:590px){.truth-note{font-size:.62rem;line-height:1.25;padding:6px}.benefit-actions button{padding:7px 6px;font-size:.66rem}}
.stage:has(.official-grid){justify-content:flex-start;padding-top:18px;padding-bottom:16px}.official-head .step-count{margin-left:42px}.official-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:10px 0 10px 42px}.official-grid a{min-width:0;display:flex;align-items:flex-start;gap:9px;padding:10px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);text-decoration:none;transition:.18s}.official-grid a:hover,.official-grid a:focus{border-color:var(--blue);background:#f5f9ff;transform:translateY(-2px);outline:0;box-shadow:0 7px 20px #1664f512}.official-icon{flex:0 0 28px;height:28px;border-radius:9px;display:grid;place-items:center;background:#eaf2ff;color:var(--blue);font:800 .68rem "Manrope"}.official-copy{min-width:0;display:flex;flex-direction:column}.official-copy b{font-size:.75rem;line-height:1.2}.official-copy small{color:var(--muted);font-size:.63rem;line-height:1.25;margin:2px 0}.official-copy em{color:var(--blue);font-size:.61rem;font-style:normal;font-weight:800}.official-actions{display:flex;gap:8px;margin-left:42px}.official-actions button{padding:9px 12px;font-size:.76rem}
@media(max-width:780px){.stage:has(.official-grid){padding:10px 12px}.official-head .step-count,.official-grid,.official-actions{margin-left:0}.official-head .result-title{font-size:1.18rem}.official-head .result-copy{font-size:.75rem}.official-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;margin:7px 0}.official-grid a{height:100%;padding:8px;gap:7px}.official-icon{flex-basis:25px;height:25px}.official-copy b{font-size:.76rem}.official-copy small{display:none}.official-copy em{font-size:.7rem;margin-top:3px}.official-actions{display:grid;grid-template-columns:auto 1fr}.official-actions button{padding:8px 7px;font-size:.75rem}}
@media(max-width:370px){.welcome{min-height:66px;padding:7px 9px}.welcome h1{font-size:1.14rem}.welcome>p{font-size:.68rem}.mini-proof{display:none}.official-grid{grid-template-columns:1fr}.official-grid a{padding:6px 8px}.official-copy{display:grid;grid-template-columns:1fr auto;align-items:center;column-gap:6px}.official-copy b{font-size:.74rem}.official-copy em{margin:0}.official-head .result-copy{display:none}}
@media(max-width:360px),(max-height:590px){.stage:has(.official-grid){padding-top:8px}.official-head .bot-line{margin:4px 0}.official-grid{gap:4px;margin:5px 0}.official-grid a{padding:6px}.official-icon{flex-basis:24px;height:24px}.official-copy small{display:none}.official-actions button{padding:7px 6px;font-size:.65rem}}
.app.reading{grid-template-rows:72px 4px minmax(0,1fr) 0 31px}.stage:has(.knowledge-shell){justify-content:stretch;overflow:hidden;padding:14px 18px 10px}.knowledge-shell{display:grid;grid-template-columns:172px minmax(0,1fr);gap:14px;min-height:0;flex:1}.knowledge-nav{min-height:0;overflow-y:auto;display:flex;flex-direction:column;gap:5px;padding-right:4px}.knowledge-nav::-webkit-scrollbar,.knowledge-article::-webkit-scrollbar{width:4px;height:4px}.knowledge-nav::-webkit-scrollbar-thumb,.knowledge-article::-webkit-scrollbar-thumb{background:#d6e1ef;border-radius:10px}.knowledge-nav button{display:flex;align-items:center;gap:7px;width:100%;border:1px solid transparent;border-radius:10px;background:transparent;color:#68758b;padding:7px 8px;text-align:left;font-size:.75rem;font-weight:700;line-height:1.15}.knowledge-nav button span{flex:0 0 25px;height:25px;border-radius:8px;display:grid;place-items:center;background:#edf3fb;color:var(--blue);font:800 .68rem "Manrope"}.knowledge-nav button:hover,.knowledge-nav button.active{background:#edf4ff;border-color:#d7e6fc;color:var(--blue)}.knowledge-article{min-height:0;overflow-y:auto;padding:2px 8px 12px 0}.knowledge-kicker{color:var(--blue);font-size:.72rem;font-weight:800;letter-spacing:.09em}.knowledge-article h2{margin:3px 0 4px;color:var(--navy);font:800 1.45rem/1.12 "Manrope";letter-spacing:-.035em}.knowledge-intro{margin:0 0 10px;color:var(--muted);font-size:.84rem;line-height:1.4}.knowledge-blocks{display:grid;grid-template-columns:1fr 1fr;gap:7px}.knowledge-blocks section{border:1px solid var(--line);border-radius:11px;padding:9px;background:#fbfdff}.knowledge-blocks h3{margin:0 0 3px;color:var(--navy);font:800 .78rem "Manrope"}.knowledge-blocks p{margin:0;color:#5f6c82;font-size:.75rem;line-height:1.35}.knowledge-tip{display:flex;gap:8px;margin-top:8px;border:1px solid #f0dca8;border-radius:10px;background:#fff8e6;padding:8px 9px;color:#65552f;font-size:.75rem;line-height:1.35}.knowledge-tip b{color:#88640d;white-space:nowrap}.knowledge-source{display:inline-flex;margin-top:8px;color:var(--blue);font-size:.75rem;font-weight:800;text-decoration:none}.knowledge-actions{display:flex;align-items:center;gap:8px;padding-top:8px;margin-left:186px}.knowledge-actions button{padding:8px 11px;font-size:.75rem}.knowledge-actions span{color:#8995a8;font-size:.72rem;margin-left:auto}.knowledge-actions .primary{margin-left:0}
@media(max-width:780px){.app.reading{grid-template-rows:58px 4px minmax(0,1fr) 0 27px}.stage:has(.knowledge-shell){overflow:hidden;padding:9px 10px 8px}.knowledge-shell{display:flex;flex-direction:column;gap:7px}.knowledge-nav{flex:0 0 auto;overflow-x:auto;overflow-y:hidden;flex-direction:row;padding:0 0 3px}.knowledge-nav button{flex:0 0 auto;width:auto;white-space:nowrap;padding:6px 8px;font-size:.75rem}.knowledge-nav button span{width:24px;height:24px}.knowledge-article{flex:1;padding:0 4px 8px 0}.knowledge-article h2{font-size:1.22rem}.knowledge-intro{font-size:.79rem;margin-bottom:7px}.knowledge-blocks{grid-template-columns:1fr;gap:6px}.knowledge-blocks section{padding:8px}.knowledge-blocks h3{font-size:.8rem}.knowledge-blocks p{font-size:.76rem}.knowledge-tip{font-size:.75rem}.knowledge-source{font-size:.76rem}.knowledge-actions{margin:0;padding-top:6px}.knowledge-actions button{padding:8px;font-size:.74rem}}
@media(max-width:370px),(max-height:650px){.knowledge-nav button{font-size:.7rem;padding:5px 7px}.knowledge-nav button span{display:none}.knowledge-article h2{font-size:1.08rem}.knowledge-intro{font-size:.73rem}.knowledge-blocks h3{font-size:.75rem}.knowledge-blocks p{font-size:.7rem}.knowledge-tip{font-size:.7rem;padding:6px}.knowledge-actions button{padding:7px 6px;font-size:.68rem}}
/* Final responsive QA: every viewport keeps the brand, assistant and actions visible. */
.knowledge-more{display:none}.knowledge-nav button,.answers button,.primary,.secondary,.restart-top,.tools button{-webkit-tap-highlight-color:transparent;touch-action:manipulation}.knowledge-source:hover,.knowledge-source:focus{text-decoration:underline;outline-offset:3px}.knowledge-actions{flex:0 0 auto}.knowledge-article{overscroll-behavior:contain;scrollbar-gutter:stable}.knowledge-nav{overscroll-behavior:contain}
@media(min-width:781px) and (max-width:1050px){header{height:62px;padding:0 24px}main{height:calc(100dvh - 62px);grid-template-columns:minmax(220px,.62fr) minmax(470px,1.38fr);gap:24px;padding:14px 20px}.welcome h1{font-size:clamp(2.2rem,5.2vw,3.45rem)}.welcome>p{font-size:.95rem}.app{height:min(650px,calc(100dvh - 88px));min-height:470px}.knowledge-shell{grid-template-columns:150px minmax(0,1fr);gap:10px}.knowledge-actions{margin-left:160px}.knowledge-blocks{grid-template-columns:1fr}.knowledge-nav button{padding:7px 6px}}
@media(min-width:781px) and (max-height:700px){header{height:56px}.brand>span{width:32px;height:32px}.tools button{height:34px}main{height:calc(100dvh - 56px);padding:8px 20px;align-items:stretch}.welcome{display:flex!important;flex-direction:column;justify-content:center}.welcome .live{padding:4px 9px;font-size:.72rem;align-self:flex-start}.welcome h1{font-size:clamp(2rem,4.2vw,3rem);margin:11px 0 8px}.welcome>p{font-size:.88rem;margin:0}.mini-proof{margin-top:12px;font-size:.76rem}.app{height:100%;min-height:0;max-height:none}.app:not(.reading){grid-template-rows:60px 4px minmax(0,1fr) 52px 28px}.app.reading{grid-template-rows:60px 4px minmax(0,1fr) 0 28px}.app-head{padding:0 17px}.avatar{width:37px;height:37px}.stage{padding-top:12px;padding-bottom:10px}.stage:has(.knowledge-shell){padding:9px 14px 7px}.knowledge-article h2{font-size:1.25rem}.knowledge-intro{margin-bottom:7px}.knowledge-blocks section{padding:7px}.knowledge-tip{padding:6px 8px;margin-top:6px}.knowledge-source{margin-top:5px}.knowledge-actions{padding-top:5px}}
@media(max-width:780px){header{box-shadow:0 1px 0 #e4ebf4}main{grid-template-rows:auto minmax(0,1fr)}.welcome{min-width:0;box-shadow:0 6px 22px #18437c0b}.welcome h1,.welcome>p{min-width:0}.app{border-radius:16px}.app-head span{font-size:.75rem}.stage{scrollbar-gutter:stable}.knowledge-more{display:block;width:max-content;max-width:100%;margin:0 0 7px;border-radius:99px;background:#eef5ff;color:#2862bb;padding:4px 8px;font-size:.7rem;font-weight:700}.knowledge-nav{scrollbar-width:thin}.knowledge-nav:after{content:"";flex:0 0 8px}.knowledge-nav button{min-height:38px}.knowledge-article{scrollbar-width:thin}.knowledge-blocks section{box-shadow:0 3px 12px #173d6e08}.knowledge-actions{position:relative;z-index:2;border-top:1px solid #edf1f6;background:#fff;padding:7px 0 1px}.knowledge-actions .secondary{min-width:84px}.knowledge-actions .primary{min-width:118px}.optional{min-height:27px}.modal input{font-size:16px}}
@media(max-width:480px){header{padding-left:10px;padding-right:10px}.brand{gap:7px}.tools button{padding:0 9px}.welcome{grid-template-columns:minmax(0,1fr);min-height:68px}.welcome h1{font-size:clamp(1.12rem,5.7vw,1.4rem)}.welcome>p{font-size:.72rem}.mini-proof{display:none}.app-head{padding:0 11px}.stage{padding-left:11px;padding-right:11px}.answers button{width:100%}.result-actions{grid-template-columns:1fr}.guide-nav .official-link{order:4;width:100%;text-align:center}.knowledge-nav{margin-right:-10px}.knowledge-article h2{font-size:1.16rem}.knowledge-intro{font-size:.78rem}.knowledge-blocks p{font-size:.76rem;line-height:1.42}.knowledge-tip{flex-direction:column;gap:2px}.knowledge-actions{gap:5px}.knowledge-actions span{display:none}.knowledge-actions button{font-size:.72rem}.knowledge-actions .secondary{min-width:76px}.knowledge-actions .primary{margin-left:auto;min-width:112px}}
@media(max-width:350px){header{height:50px}.brand b{font-size:.84rem}.brand>span{width:28px;height:28px}.tools button{height:32px;padding:0 8px}main{height:calc(100dvh - 50px);padding:5px;gap:5px}.welcome{min-height:60px;padding:6px 8px;border-radius:12px}.welcome h1{font-size:1.05rem}.welcome>p{font-size:.66rem}.app{border-radius:13px}.app:not(.reading){grid-template-rows:52px 3px minmax(0,1fr) 48px 25px}.app.reading{grid-template-rows:52px 3px minmax(0,1fr) 0 25px}.knowledge-more{font-size:.66rem}.knowledge-actions .secondary{min-width:68px}.knowledge-actions .primary{min-width:105px}}
@media(max-height:520px){.welcome{min-height:48px;padding-top:5px;padding-bottom:5px}.welcome h1{font-size:1rem}.welcome>p,.mini-proof{display:none}.app-head{min-height:0}.stage{padding-top:7px;padding-bottom:6px}.knowledge-more{display:none}.knowledge-nav button{min-height:32px}.knowledge-nav button span{height:21px;width:21px}.knowledge-actions{padding-top:4px}.knowledge-actions button{padding-top:6px;padding-bottom:6px}}
@media(orientation:landscape) and (max-height:520px) and (max-width:900px){header{height:48px}main{height:calc(100dvh - 48px);grid-template-columns:180px minmax(0,1fr);grid-template-rows:minmax(0,1fr);gap:7px}.welcome{height:100%;min-height:0;display:flex!important;flex-direction:column;justify-content:center}.welcome h1{font-size:1.25rem}.welcome>p{display:block;font-size:.68rem}.app{height:100%}.knowledge-shell{display:grid;grid-template-columns:130px minmax(0,1fr)}.knowledge-nav{flex-direction:column;overflow-y:auto;overflow-x:hidden}.knowledge-nav button{width:100%;white-space:normal}.knowledge-actions{margin-left:137px}}
@media(orientation:landscape) and (max-height:520px) and (max-width:640px){main{grid-template-columns:125px minmax(0,1fr)}.welcome h1{font-size:1rem}.welcome>p{font-size:.62rem}.knowledge-shell{grid-template-columns:105px minmax(0,1fr)}.knowledge-nav button{font-size:.65rem}.knowledge-actions{margin-left:112px}}