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@media(max-width:1150px){.shell{grid-template-columns:210px minmax(0,1fr)}main{padding:25px 28px}.sidebar{padding-left:12px;padding-right:12px}.route-layout{grid-template-columns:minmax(0,1fr) 220px;gap:18px}.route-guide{padding:22px 17px}.block-card{padding:15px}.day-tab{padding:12px}.metric{padding:15px}.hero-mark{margin-right:0;font-size:26px}.heading h1{font-size:41px}.library-tools{flex-wrap:wrap}.search{min-width:100%}}
@media(max-width:920px){.route-layout{grid-template-columns:1fr}.route-guide{display:none}.heading h1{font-size:40px}.day-tabs{gap:7px}.day-tab{padding:12px 9px}.day-tab strong{font-size:11px}.day-tab>span{font-size:9px}.steps{gap:4px}.step{font-size:9px}.metric small{display:block;margin:3px 0 0}.question-card{padding:25px}.stats-grid{grid-template-columns:1fr}}
@media(max-width:760px){.shell{display:block}.sidebar{position:static;height:auto;flex-direction:row;flex-wrap:wrap;gap:15px;padding:16px 20px 0;border-right:0;border-bottom:1px solid var(--line)}.brand{margin:0 auto 0 0;font-size:28px;gap:9px}.brand-mark{width:32px;height:35px;font-size:33px;line-height:25px;padding-left:7px}.brand-mark span{font-size:25px}.side-label,.side-note,.save-state{display:none}.side-bottom{margin:0}.side-bottom .nav{font-size:0;padding:9px}.side-bottom .nav svg{width:19px;height:19px}.sidebar nav{display:flex;gap:3px;width:100%;order:2;overflow-x:auto}.nav{font-size:10px;padding:12px 10px;justify-content:center;gap:6px;border-radius:7px 7px 0 0;flex:1}.nav svg{width:15px;height:15px}.nav.active{background:#dce5d8;color:var(--ink)}.badge{display:none}main{padding:22px 25px}.heading{margin-top:27px}.heading h1{font-size:40px}.hero-mark{font-size:26px;margin-right:15px}.metrics{margin-bottom:23px}.day-tabs{margin-bottom:25px}.metric strong{font-size:25px}.question-card{min-height:330px}.study-head{margin-top:24px}.section-heading{margin-top:26px}}
@media(max-width:520px){.sidebar{padding:14px 16px 0;gap:12px}.sidebar nav{margin:0 -6px;width:calc(100% + 12px)}.nav{font-size:9px;padding:12px 6px;gap:5px}.nav svg{display:none}.side-bottom .nav svg{display:block}main{padding:18px 18px 20px}.topbar{font-size:9px;padding-bottom:17px}.slash{padding:0 6px}.heading{margin:27px 0 23px;gap:10px}.heading h1{font-size:37px;letter-spacing:-1px}.heading>div>p:last-child{font-size:11px;line-height:1.8}.hero-mark{display:none}.eyebrow{font-size:8px;letter-spacing:1.5px}.metrics{grid-template-columns:repeat(2,1fr)}.metric{padding:14px 16px}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid var(--line)}.metric span{font-size:10px}.metric small{display:inline;margin-left:5px}.day-tabs{gap:5px}.day-tab{padding:11px 7px}.day-tab small{font-size:9px;margin-bottom:6px}.day-tab strong{font-size:9px}.day-tab>span{font-size:8px;line-height:1.5}.day-tab i{position:static;display:block;margin-top:4px;font-size:7px}.day-intro h2{font-size:27px}.day-intro p{font-size:11px}.day-progress{font-size:9px}.block-grid{gap:9px}.block-card{padding:14px 12px;gap:12px}.block-card h3{font-size:20px}.block-preview{font-size:10px;min-height:47px;overflow-wrap:anywhere}.block-number{font-size:8px;letter-spacing:.6px}.pill{font-size:8px;padding:3px 5px}.block-bottom{font-size:8px;gap:5px}.block-start{font-size:9px;padding:7px 8px;gap:4px}.block-start svg{width:11px;height:11px}.resume{flex-wrap:wrap;gap:10px;padding:13px}.resume p{min-width:100%;font-size:11px}.section-heading h1{font-size:33px;line-height:1.2}.section-heading>p:last-child{font-size:12px}.review-heading{flex-wrap:wrap}.panel{padding:21px}.review-heading h2{font-size:26px}.review-heading p{font-size:11px}.word-tags{gap:6px}.word-tag{font-size:11px;padding:6px 9px}.footer{font-size:9px;margin-top:30px}.footer>span:last-child{display:none}.study-head h1{font-size:23px}.study-head .text-button{font-size:9px}.study-head .eyebrow{font-size:7px}.steps{gap:5px;margin-bottom:20px}.step{font-size:8px;padding:9px 0 0}.step b{font-size:8px}.question-meta{font-size:9px}.question-card{padding:22px 20px;min-height:320px}.question-card .word{font-size:43px;letter-spacing:-1px}.question-card .meaning{font-size:18px;margin-bottom:12px}.synonyms{gap:5px;margin:10px 0 19px}.synonyms span{font-size:10px;padding:5px 8px}.example{padding-left:12px}.example p{font-size:20px}.card-foot{font-size:10px}.question-title{font-size:25px;margin:23px 0;line-height:1.5}.question-title.cloze{font-size:24px;line-height:1.65}.options{gap:8px}.option{padding:12px 9px;gap:8px;font-size:13px}.option>span{width:20px;height:20px;font-size:9px}.study-actions{gap:10px}.study-actions .primary{min-width:0}.primary,.secondary{font-size:11px;padding:11px 14px}.study-actions .text-button{font-size:10px}.grade-buttons{gap:6px}.grade{font-size:10px;padding:12px 5px}.grade small{font-size:9px}.reading-header{flex-wrap:wrap}.reading-header h2{font-size:27px}.reading-controls{gap:15px}.reading-controls .text-button{font-size:10px}.turn{grid-template-columns:45px minmax(0,1fr);gap:11px}.speaker{font-size:9px}.turn p{font-size:20px;line-height:1.7}.transcript{gap:18px}.reading-gloss{font-size:11px;padding:12px}.context-line>p{font-size:18px}.comprehension h3{font-size:12px;line-height:1.6}.result-metrics{gap:8px}.result-metric{padding:17px 9px}.result-metric strong{font-size:26px}.result-metric span{font-size:9px;line-height:1.5}.results-header h1{font-size:31px}.error-row{grid-template-columns:1fr;gap:4px}.search{padding:11px}.search input{font-size:11px}.library-tools select{flex:1;font-size:10px}.table-wrap th,.table-wrap td{padding:11px 13px}.table-wrap td{font-size:11px}.table-wrap td:nth-child(2){min-width:150px}.table-wrap td button{font-size:19px;min-width:85px}.stats-row{font-size:11px}.layer-row{grid-template-columns:105px minmax(0,1fr) 48px;font-size:10px;gap:8px}dialog{padding:23px}dialog h2{font-size:28px}.date-setting{font-size:11px;gap:12px}.detail-stats{gap:8px;font-size:9px}.detail-stats strong{font-size:22px}}
.tool-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:24px 0 18px}.tool-option{border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:15px;text-align:left;display:flex;flex-direction:column;gap:8px}.tool-option:hover{background:var(--green-light);border-color:#b9c9b4}.tool-option strong{font-size:13px;font-weight:600}.tool-option span{font-size:11px;color:var(--muted);line-height:1.7}.tool-route{width:100%}.study-tools{display:flex;gap:16px;align-items:center}.study-tools .text-button{white-space:nowrap}
@media(max-width:520px){.tool-options{gap:8px}.tool-option{padding:13px 11px}.tool-option strong{font-size:12px}.tool-option span{font-size:10px}.study-tools{gap:10px}.study-tools .text-button{font-size:9px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
.topbar-right{display:flex;align-items:center;gap:18px}.sync-button{display:flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:20px;background:var(--white);padding:8px 11px;font-size:10px;white-space:nowrap}.sync-button i{width:6px;height:6px;border-radius:50%;background:#a5aba0}.sync-button[data-state="synced"] i{background:#6b9168}.sync-button[data-state="pending"] i,.sync-button[data-state="syncing"] i{background:#bf9b45}.sync-button[data-state="conflict"] i,.sync-button[data-state="offline"] i,.sync-button[data-state="auth"] i{background:var(--accent)}.sync-message{padding:12px 15px;background:var(--green-light);border-radius:8px;line-height:1.7}.sync-message[data-state="conflict"],.sync-message[data-state="auth"],.sync-message[data-state="offline"]{background:var(--accent-light)}.sync-label{display:block;font-size:11px;margin:22px 0 9px}#sync-key{width:100%;padding:13px;border:1px solid var(--line);border-radius:7px;background:var(--paper);color:var(--ink);font:13px monospace}.key-actions{display:flex;gap:20px;flex-wrap:wrap;margin-top:6px}.sync-help{border-top:1px solid var(--line);margin-top:20px;padding-top:15px;font-size:11px;line-height:1.9;color:var(--muted)}.sync-help summary{cursor:pointer;color:var(--ink)}.sync-help p{margin-top:9px}.sync-help a{color:var(--accent)}.sync-conflict-open{margin-top:18px}.sync-comparison{display:grid;gap:10px;margin:20px 0}.sync-comparison article{border:1px solid var(--line);padding:16px;border-radius:8px;background:var(--paper)}.sync-comparison h3{font-size:12px;font-weight:600;margin-bottom:8px}.sync-comparison p{font-size:11px;line-height:1.8}.sync-comparison p strong{font-size:20px;font-weight:400}.sync-comparison small{display:block;font-size:10px;color:var(--muted);line-height:1.8}.sync-dialog .danger{margin-top:0}
@media(max-width:760px){.topbar-right{gap:9px}#today{display:none}}
@media(max-width:520px){.topbar{gap:10px;align-items:flex-start}.topbar>span{line-height:1.7}.sync-button{font-size:9px;padding:7px 9px}.key-actions{gap:15px}}