:root{font-family:Inter,SF Pro Display,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;color:#23312e;background:#e6ecea;font-synthesis:none;font-weight:400;--ink: #23312e;--muted: #74847f;--mint: #aef3d5;--green: #8afaad;--lemon: #f8fc8b;--lavender: #d9c5f4;--coral: #ffad9f;--line: rgba(73, 111, 101, .12);--primary: #1d2925;--panel: rgba(250, 253, 254, .78)}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}button:disabled{opacity:.42;cursor:not-allowed}a{color:inherit;text-decoration:none}button,input,select,a{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid #237a60;outline-offset:4px}button{border:0;background:none}input,select{width:100%;border:1px solid var(--line);background:#f8fbfb;color:var(--ink);border-radius:14px;padding:14px 16px;min-height:48px;outline:none}input:focus,select:focus{border-color:#7fbfae}input[readonly]{color:var(--muted)}form label{display:block;font-size:13px;margin:22px 0 8px}form label input,form label select{margin-top:9px}h1,h2,h3,p{margin:0}h1{font-weight:500;letter-spacing:-1.4px}h2{font-size:21px;font-weight:500;letter-spacing:-.5px}h3{font-size:16px;font-weight:500}p{line-height:1.7}img{display:block;max-width:100%}svg{flex-shrink:0}hr{border:0;border-top:1px solid var(--line);margin:32px 0}.small{font-size:12px;line-height:1.8}.eyebrow{font-size:10px;letter-spacing:2px;color:#6f8880}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:999px;background:#ffffffb3;border:1px solid var(--line);padding:13px 22px;font-size:13px;line-height:1.4;min-height:46px;transition:transform .18s,background .18s;white-space:nowrap}.button:hover:not(:disabled){transform:translateY(-1px);background:#fff}.button.primary{background:var(--primary);color:#fff;border-color:var(--primary)}.button.primary:hover:not(:disabled){background:#354b42}.button.compact{padding:9px 16px;min-height:36px;font-size:12px}.button.full{width:100%}.button.danger{color:#a24b42;margin-top:26px}.icon-button{display:inline-flex;align-items:center;justify-content:center;border-radius:50%;width:40px;height:40px;background:#ffffffa3;border:1px solid rgba(79,116,106,.1);flex-shrink:0}.icon-button:hover{background:#fff}.tiny-icon,.round-label{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:50%;color:#6f8c81}.round-label{width:46px;height:46px;background:#ecf7f2}.text-link{display:inline-flex;align-items:center;gap:6px;font-size:12px}.text-link:hover{text-decoration:underline}.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:500;letter-spacing:1px}.brand-mark{width:39px;height:43px;display:flex;align-items:center;justify-content:center;border:1px solid #adc9bd;border-radius:14px;background:linear-gradient(140deg,#d7f6de,#e4f3ef)}.brand-en{display:block;letter-spacing:2.4px;font-size:8px;margin-top:2px;font-weight:400}.avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(145deg,#fdd6bc,#f49f8d);color:#744b39;display:inline-flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0;border:3px solid rgba(255,255,255,.6)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.loading{display:flex;min-height:60vh;gap:20px;align-items:center;justify-content:center;flex-direction:column}.spin{animation:spin 1.2s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error{padding:12px 16px;background:#fff0eb;border:1px solid #f5cdc2;border-radius:12px;color:#a34532;font-size:13px;margin:14px 0;line-height:1.6}.error-text{color:#9a5b4d;font-size:11px;display:block;line-height:1.5;margin-top:4px}.toast{position:fixed;bottom:35px;left:50%;transform:translate(-50%);z-index:1000;display:flex;align-items:center;gap:10px;padding:14px 23px;background:#263b31;color:#fff;border-radius:999px;font-size:13px;box-shadow:0 6px 30px #263b3125;max-width:calc(100vw - 32px);white-space:nowrap}.soft-note{background:#eef5f2;border-radius:15px;padding:15px;display:flex;gap:10px;align-items:flex-start;font-size:12px;line-height:1.7;color:#667e73;margin:20px 0}.soft-note code{overflow-wrap:anywhere;font-size:12px}.lavender{background:var(--lavender)}.lemon{background:var(--lemon)}.mint{background:#cbf6df}.pale{background:#eaf0ed}.coral-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#ef9e90;flex-shrink:0}.live-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#46a477;margin-right:6px}.live-dot.off{background:#9aa7a0}.inline-sep{display:inline-block;height:10px;border-left:1px solid #b3c8be;margin:0 10px}.button-group{display:flex;gap:10px}.admin-shell{min-height:100vh;background:radial-gradient(ellipse at 12% 0%,#b9f2df 0,transparent 44%),radial-gradient(ellipse at 95% 6%,#e4e8fa 0,transparent 42%),#edf4f2;display:flex;padding:20px;gap:22px}.sidebar{width:194px;position:fixed;top:20px;left:20px;bottom:20px;border-radius:26px;padding:29px 17px 15px;background:#ffffff61;border:1px solid rgba(255,255,255,.62);display:flex;flex-direction:column;z-index:20}.brand-link{padding-left:9px}.sidebar nav{display:flex;flex-direction:column;gap:9px;margin-top:62px}.sidebar nav a{display:flex;align-items:center;gap:12px;padding:10px 8px;border-radius:16px;color:#657d72;font-size:13px}.sidebar nav a.active{color:#26392f;background:#ffffffc7}.nav-circle{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border:1px solid transparent;border-radius:50%}.active .nav-circle{border-color:#b5d3c4;background:#f2faf4}.sidebar nav a small{margin-left:auto;color:#7c9388;font-size:10px}.sidebar-bottom{margin-top:auto}.sidebar-caption{font-size:11px;line-height:1.8;color:#81968b;margin:0 14px 25px}.account{display:flex;align-items:center;gap:10px;text-align:left;border-top:1px solid #d7e6df;padding:20px 2px 5px;width:100%}.account strong{display:block;font-size:12px;font-weight:500}.account small{display:block;font-size:10px;color:var(--muted);margin-top:3px}.account>svg{margin-left:auto}.admin-main{margin-left:216px;width:calc(100% - 216px);max-width:1400px;padding:0 23px 0 8px}.topbar{height:62px;display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}.breadcrumb{font-size:11px;color:#7c8f86}.breadcrumb span{margin:0 12px;color:#afc0b7}.topbar-right{display:flex;align-items:center;gap:15px}.today{font-size:11px;color:#72897d;margin-right:7px}.topbar .icon-button{width:34px;height:34px}.page-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:33px;gap:20px}.page-heading h1{font-size:34px;margin:10px 0 9px}.page-heading p{font-size:12px;color:var(--muted)}.page-heading>.button{margin-top:10px}.overview-grid{display:grid;grid-template-columns:1.08fr 1fr;gap:25px;margin-bottom:30px}.overview-card{padding:26px 30px 22px;border-radius:27px;background:linear-gradient(120deg,#d0f8e9aa,#edf3ffb3);border:1px solid #ffffff85}.section-top{display:flex;justify-content:space-between;align-items:center;font-size:13px}.large-count{font-size:77px;font-weight:300;letter-spacing:-5px;margin-top:15px;line-height:1.05}.large-count>span{font-size:12px;color:#758b80;letter-spacing:0;margin-left:14px}.metric-details{display:flex;gap:0;margin-top:22px;margin-bottom:23px}.metric-details>div{flex:1}.metric-details .tiny-icon{display:flex;width:29px;height:29px;margin-bottom:7px}.metric-details small{display:block;font-size:9px;color:#8da093;margin-bottom:4px}.metric-details strong{font-size:11px;font-weight:400}.color-ribbons{display:grid;grid-template-columns:63px 63px 1fr;gap:7px;height:134px}.ribbon{border-radius:19px;padding:12px 10px;display:flex;flex-direction:column;justify-content:space-between;align-items:center}.ribbon.green{background:var(--green)}.ribbon.yellow{background:var(--lemon)}.ribbon>.tiny-icon{width:30px;height:30px;border-color:#6c9b6f30}.ribbon>span:last-child{writing-mode:vertical-rl;font-size:10px;letter-spacing:1px;color:#5d835e}.ribbon.striped{background:repeating-linear-gradient(90deg,#dae8e9 0 2px,#aec0c2 2px 3px);align-items:stretch;padding:12px 11px;min-width:0}.ribbon-caption{font-size:11px;line-height:1.8;background:#e5edecb3;border-radius:10px;padding:5px 8px}.ribbon .button{font-size:11px;gap:5px;padding:7px 8px;min-height:30px}.activity-card{border-radius:27px;background:var(--panel);padding:27px 25px 0;overflow:hidden;display:flex;flex-direction:column}.activity-card h2{font-size:18px}.activity-count{display:flex;justify-content:space-between;align-items:end;margin:22px 0 17px}.activity-count>span{font-size:11px;color:#819389}.activity-count strong{font-size:32px;letter-spacing:-2px;font-weight:400}.activity-count small{font-size:9px;letter-spacing:0;color:#87998f;margin-left:4px}.activity-note{border-radius:19px;padding:16px 17px;display:flex;gap:14px;align-items:center;margin-bottom:8px;text-align:left;width:100%}.note-icon{width:38px;height:38px;border-radius:50%;border:1px solid #3e624922;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#546e59}.activity-note>div{min-width:0;flex:1}.activity-note small{font-size:9px;color:#747577}.activity-note h3{font-size:14px;margin:5px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.activity-note p{font-size:10px;color:#666970}.activity-note>svg{margin-left:auto}.activity-footer{margin:auto -25px 0;background:#ffd0c3;padding:12px 25px;font-size:10px;color:#986d62;display:flex;gap:8px;align-items:center}.content-panel{border-radius:26px;background:var(--panel);padding:26px 28px}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:15px}.panel-heading h2{display:flex;align-items:center;gap:12px;font-size:19px}.count-bubble{display:inline-flex;min-width:23px;height:23px;padding:0 6px;align-items:center;justify-content:center;font-size:10px;background:#e8f0ed;color:#789285;border-radius:50%}.deck-list{display:flex;flex-direction:column}.deck-row{display:flex;align-items:center;gap:18px;padding:16px 0;border-top:1px solid #e4ebe7}.deck-cover{width:100px;height:61px;background:#daf1e4;flex-shrink:0;border-radius:11px;overflow:hidden;padding:0;display:flex;align-items:center;justify-content:center}.deck-cover img{width:100%;height:100%;object-fit:cover}.deck-description{flex:1;min-width:0}.title-button{font-size:14px;font-weight:500;display:block;padding:0;text-align:left;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.deck-description>span{display:flex;align-items:center;gap:7px;font-size:10px;color:#8b9b92;margin-top:8px}.deck-description i{height:8px;border-left:1px solid #cad5ce}.status{font-size:10px;display:inline-flex;padding:5px 9px;background:#edf0ee;color:#80958a;border-radius:999px;white-space:nowrap}.status.ready{background:#e0f4e7;color:#4c8c66}.status.processing,.status.queued{background:#f7f1cc;color:#9a8542}.status.failed{background:#ffe3db;color:#a45743}.deck-actions{display:flex;align-items:center;gap:5px}.deck-actions .icon-button{width:32px;height:32px;background:transparent}.page-footer{display:flex;justify-content:space-between;padding:28px 2px 8px;color:#98aaa0;font-size:9px;letter-spacing:.7px}.empty{text-align:center;padding:55px 20px;color:#8b9e93}.empty>svg{margin-bottom:20px;color:#7b9b86}.empty h3{color:#516c5e;margin-bottom:10px}.empty p{font-size:12px;margin-bottom:23px}.search-field{display:flex;align-items:center;background:#eaf1ee;border-radius:999px;padding-left:16px;color:#8aa093;max-width:250px}.search-field input{border:0;background:none;min-height:40px;font-size:12px;padding:10px 14px}.filter-tabs{display:flex;gap:6px;margin:20px 0;flex-wrap:wrap}.filter-tabs button{font-size:11px;border-radius:999px;padding:9px 14px;color:#7b9084}.filter-tabs .selected{background:#dceee3;color:#3d6650}.class-row{display:flex;gap:18px;align-items:center;padding:23px 0;border-top:1px solid var(--line)}.class-icon{width:55px;height:55px;display:flex;align-items:center;justify-content:center;border-radius:18px}.class-row>div{flex:1;min-width:0}.class-row strong{font-size:14px;font-weight:500}.class-row p{font-size:11px;color:var(--muted);margin-top:6px}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px;align-items:start}.system-line{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:18px 0;border-bottom:1px solid var(--line);font-size:12px}.system-line>span:first-child{color:var(--muted)}.system-line b,.system-line strong{font-weight:500;font-size:12px}.modal{border:1px solid #fff8;border-radius:28px;background:linear-gradient(135deg,#f1fbf6,#f6f7ff);color:var(--ink);padding:27px;width:calc(100% - 32px);max-width:490px;max-height:90dvh;overflow:auto;box-shadow:0 25px 120px #223c3b25}.modal.wide{max-width:850px}.modal::backdrop{background:#263e3959;-webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px)}.modal-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.modal-heading h2{font-size:22px}.modal>p{font-size:13px}.dropzone{margin-top:22px;border:1px dashed #a8ccba;border-radius:21px;min-height:220px;background:#ebf8f0;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:14px;cursor:pointer;padding:20px;text-align:center}.dropzone.drag{background:#ccf3dd}.dropzone strong{font-size:14px;font-weight:500;overflow-wrap:anywhere}.dropzone>span:last-of-type{font-size:11px;color:#7c9b87}.upload-orbit{display:flex;align-items:center;justify-content:center;width:66px;height:66px;border-radius:50%;background:#d4f2df;border:1px solid #b9d7c2}.upload-progress{margin:20px 0;font-size:12px;color:#587b65}.upload-progress progress{width:100%;height:5px;accent-color:#57ac7f;margin-bottom:8px}.mini-deck{display:flex;align-items:center;gap:15px;padding:12px;background:#e8f1ed;border-radius:16px}.mini-deck img{width:92px;border-radius:7px}.mini-deck strong{font-size:13px;font-weight:500}.mini-deck span{display:block;color:var(--muted);font-size:11px;margin-top:8px}.toggle-row{display:flex!important;align-items:center;justify-content:space-between;gap:15px;margin:24px 0!important}.toggle-row small{display:block;font-size:11px;color:var(--muted);margin-top:6px;line-height:1.6}.toggle-row input{width:20px;min-height:20px;height:20px;accent-color:#406e53;margin:0;flex-shrink:0}.preview-image{background:#e3ebe7;border-radius:15px;overflow:hidden}.preview-image img{width:100%}.preview-controls{display:flex;align-items:center;gap:12px;margin:18px 0;font-size:12px}.preview-controls .button{margin-left:auto}.share-content{text-align:center}.share-content>p:first-child{font-size:15px}.qr-frame{padding:10px;background:#fff;border-radius:24px;max-width:255px;margin:22px auto}.qr-frame img{width:100%}.join-code{display:flex;gap:7px;justify-content:center;margin:20px 0 10px}.join-code>span{display:flex;width:40px;height:47px;background:#e5efea;align-items:center;justify-content:center;border-radius:10px;font-size:23px;font-weight:400}.share-content>.button{margin:18px 0 10px}.share-url{font-size:10px;color:#708d7d;display:block;overflow-wrap:anywhere;margin:10px 0 16px}.teaching-heading h1{font-size:26px;letter-spacing:-.7px;max-width:620px;overflow-wrap:anywhere}.teaching-heading .text-link{font-size:11px;color:var(--muted)}.teaching-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:22px}.stage-panel{padding:20px;background:var(--panel);border-radius:25px}.stage-meta{display:flex;justify-content:space-between;font-size:12px;margin:0 3px 17px}.slide-stage{border-radius:15px;overflow:hidden;background:#dfe8e2;aspect-ratio:16/9;display:flex;align-items:center}.slide-stage img{width:100%;height:100%;object-fit:contain}.stage-controls{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:20px}.keyboard-hint{font-size:10px;color:#95a69a}.lesson-summary{padding:22px;border-radius:25px}.lesson-summary .large-count{font-size:54px;letter-spacing:-3px;margin-top:20px}.lesson-summary p{font-size:11px;color:#79728a;margin-top:15px}.lesson-summary .large-count>span{color:#80788e}.lesson-options{padding:23px 18px;background:var(--panel);margin-top:15px;border-radius:24px}.lesson-options .system-line{font-size:10px;padding:14px 0}.lesson-options strong{font-size:10px}.lesson-options>.button{margin-top:20px}.filmstrip{display:flex;gap:12px;margin-top:23px;overflow-x:auto;padding:6px 3px 20px}.filmstrip button{flex:0 0 125px;padding:5px;border:1px solid transparent;border-radius:13px;background:#ffffff70}.filmstrip button.active{border-color:#62947c;background:#e3f3e8}.filmstrip img{border-radius:7px;width:100%;aspect-ratio:16/9;object-fit:contain}.filmstrip span{display:block;padding:7px 0 2px;font-size:10px;color:#718e7d}.projection{height:100dvh;background:#111b16;display:flex;align-items:center;justify-content:center;position:relative}.projection>img{width:100%;height:calc(100% - 40px);object-fit:contain}.projection-footer{position:absolute;bottom:0;left:0;right:0;display:flex;justify-content:space-between;padding:12px 25px;color:#bacbc0;font-size:12px}.login-screen{min-height:100dvh;display:grid;grid-template-columns:1.15fr 1fr;background:#f6f9f7}.login-art{padding:42px 60px;background:radial-gradient(ellipse at 0 0,#b0f0d8,transparent 75%),linear-gradient(120deg,#dcefe8,#e5e9f7);display:flex;flex-direction:column;justify-content:space-between}.login-statement{margin:60px 0 20px}.login-statement h1{font-size:44px;line-height:1.4;margin:20px 0}.login-statement>p{font-size:14px;color:#799284}.paper-stack{width:260px;height:280px;margin:60px auto 30px;position:relative}.paper{width:220px;height:260px;position:absolute;border-radius:24px}.p3{background:var(--lemon);transform:rotate(15deg);left:35px;top:-10px}.p2{background:var(--lavender);transform:rotate(-11deg);left:4px;top:7px}.p1{background:#f7fcfa;transform:rotate(3deg);padding:25px;display:flex;flex-direction:column;justify-content:space-between;border:1px solid #fff}.p1>span{font-size:28px;line-height:1.4;letter-spacing:-1px}.p1 b{font-weight:400}.p1 small{font-size:9px;letter-spacing:1px;color:#7e9987}.login-art>.subtle{font-size:11px;letter-spacing:4px}.login-form{width:min(380px,calc(100% - 50px));margin:auto;padding:60px 0}.login-form h2{font-size:28px;margin:25px 0 12px}.login-form>p{font-size:13px}.login-form form>.button{margin:28px 0 24px}.login-note{font-size:11px;line-height:1.8;color:#a0ada5;margin-top:45px}.login-form>.text-link{font-size:12px;color:#648270}.student-surround{min-height:100dvh;background:#e0e8e4;display:flex;justify-content:center;padding:25px 0}.student-shell{width:100%;max-width:430px;min-height:calc(100dvh - 50px);background:radial-gradient(ellipse at 0 0,#b6f4e2 0,transparent 55%),linear-gradient(140deg,#dff4f0,#eef0fd 75%);border-radius:35px;overflow:hidden;position:relative;box-shadow:0 10px 60px #384d3f0a}.student-header{padding:29px 25px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px}.student-header .brand{font-size:21px}.student-header .brand-mark{background:#f4fff8b0;width:35px;height:39px}.student-header .round-label{width:35px;height:35px;background:#f5fffc90}.student-header .icon-button{width:36px;height:36px}.join-intro{padding:23px 30px 0}.join-intro h1{font-size:40px;line-height:1.3;margin:15px 0 14px;letter-spacing:-1.8px}.join-intro>p{font-size:12px;color:#6b9183;line-height:1.8}.join-illustration{height:237px;position:relative;margin-top:27px}.join-paper{width:206px;height:217px;border-radius:23px;background:linear-gradient(145deg,#f9fcf6,#f5fcfc);border:1px solid white;position:absolute;left:62px;top:8px;transform:rotate(-7deg);box-shadow:13px 10px #d6c2f1,22px 17px #f6f98d;display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between;padding:20px}.join-paper>span{font-size:8px;letter-spacing:1px;color:#8fa59a}.join-paper>svg{position:absolute;right:19px;top:40px;color:#9bc2ac}.join-paper strong{font-size:25px;font-weight:400;margin-top:18px;letter-spacing:-1px}.join-paper small{font-size:8px;color:#8fa59a;letter-spacing:1px}.floating-star{position:absolute;right:7px;top:-18px;font-size:64px;color:#80bb9f;font-weight:200}.floating-tag{position:absolute;bottom:31px;left:9px;padding:10px 14px;border-radius:999px;background:#9df3b9;font-size:11px;display:flex;gap:7px;align-items:center;transform:rotate(5deg)}.join-form{padding:27px 26px 25px;background:#fbfcffb5;border-radius:29px;margin:10px 12px 0}.join-form h2{font-size:21px}.join-form>p{font-size:11px;margin:13px 0 21px}.code-input{background:#fff;border:1px solid #e4ede7;text-align:center;letter-spacing:7px;font-size:24px;padding:16px 8px;margin-bottom:15px}.code-input::placeholder{font-size:13px;letter-spacing:2px;color:#a3b2a9}.join-perks{display:flex;justify-content:space-between;margin-top:21px;font-size:10px;color:#8ea297}.join-perks>span{display:flex;gap:4px;align-items:center}.student-footer{font-size:10px;color:#9cafa3;padding:22px 26px;display:flex;justify-content:space-between;align-items:center}.student-footer a{display:flex;align-items:center;gap:3px}.student-title{font-size:13px;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.student-avatar{font-size:11px;width:31px;height:31px}.student-topline{display:flex;justify-content:space-between;padding:4px 25px 21px;color:#7c988a;font-size:10px}.connection{display:flex;align-items:center;gap:5px;color:#4f9973}.connection.offline{color:#b18c4b}.student-tabs{display:flex;gap:7px;padding:0 22px 21px}.student-tabs button{display:flex;align-items:center;gap:6px;padding:10px 14px;border-radius:999px;color:#7f998c;background:#ffffff35;font-size:11px;border:1px solid transparent}.student-tabs button.selected{background:#eefcf8;box-shadow:0 3px #9edbca33;border-color:#c4e5d8;color:#456f5b}.classroom-shell{padding-bottom:100px}.student-reading{background:#fbfdffbb;border-radius:27px;padding:23px 17px 15px;margin:0 12px}.reading-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 4px 22px}.reading-heading h1{font-size:19px;letter-spacing:-.6px}.reading-count strong{font-size:30px;letter-spacing:-2px;font-weight:400}.reading-count>span{font-size:10px;color:#a1b1a7;margin-left:4px}.student-slide{position:relative;display:block;width:100%;padding:0;background:#e8f0eb;border-radius:15px;overflow:hidden}.student-slide img{width:100%;aspect-ratio:16/9;object-fit:contain}.zoom-hint{position:absolute;bottom:8px;right:8px;background:#ffffffbf;display:flex;align-items:center;gap:4px;font-size:8px;color:#6c8376;padding:5px 8px;border-radius:99px}.mobile-page-controls{display:flex;justify-content:space-between;align-items:center;margin:17px 2px 0}.mobile-page-controls>span{font-size:10px;color:#8a9d92}.mobile-page-controls .icon-button{width:35px;height:35px;background:#e9f2ed}.follow-card{display:flex;align-items:center;gap:11px;padding:20px 16px;border-radius:23px;margin:18px 17px 0}.follow-card>div{flex:1;min-width:0}.follow-card h3{font-size:13px;margin-bottom:6px}.follow-card p{font-size:10px;color:#74917e;line-height:1.7}.follow-card.lavender p{color:#8a7999}.switch{width:35px;height:22px;border-radius:999px;background:#8acaa3;padding:3px;flex-shrink:0}.switch span{display:block;background:#fff;border-radius:50%;width:16px;height:16px;margin-left:auto}.follow-card .compact{padding:6px 11px;font-size:10px;min-height:30px}.follow-card .note-icon{width:32px;height:32px}.student-download-card{background:var(--lemon);border-radius:23px;padding:20px 17px;margin:10px 17px 0;display:flex;align-items:center;gap:11px;width:calc(100% - 34px);text-align:left}.student-download-card .note-icon{width:32px;height:32px}.student-download-card>div{flex:1}.student-download-card h3{font-size:13px;margin-bottom:6px}.student-download-card p{font-size:10px;color:#8d9156}.student-tip{display:flex;align-items:center;gap:6px;margin:23px 29px 12px;font-size:9px;color:#9baa9f}.mobile-bottom-nav{position:absolute;bottom:0;left:0;right:0;display:flex;align-items:center;padding:14px 22px max(17px,env(safe-area-inset-bottom));border-top:1px solid #dae8e1;background:#f9fcfbbb;gap:10px}.mobile-bottom-nav button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:51px;height:50px;color:#a0b2a6;border-radius:20px;font-size:8px}.mobile-bottom-nav button.active{background:#e7f5ee;color:#628774;border:1px solid #cde5d7}.bottom-brand{margin-left:auto;font-size:14px;color:#a6b6ac;letter-spacing:2px}.bottom-brand span{font-size:6px;display:block;letter-spacing:1.2px;margin-top:4px}.mobile-content{padding:24px 23px;background:#fafcff9c;border-radius:28px 28px 0 0;min-height:470px}.mobile-content h1{font-size:25px;letter-spacing:-1px;margin-bottom:12px}.mobile-content>p{font-size:11px;margin-bottom:24px}.file-card{padding:23px;border-radius:22px;margin-bottom:12px;position:relative}.file-kind{position:absolute;right:23px;top:28px;font-size:10px;border:1px solid #a897bd66;border-radius:999px;padding:5px 8px;color:#7e6d96}.file-card h2{font-size:21px;line-height:1.5;margin-top:25px;overflow-wrap:anywhere}.file-card p{font-size:11px;color:#857493;margin:13px 0 23px}.file-card.lemon p{color:#8d905b}.download-locked{display:flex;align-items:center;gap:8px;font-size:12px;padding:12px 0;color:#78618f}.student-page-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px 12px}.student-page-grid button{padding:6px;background:#fff;border:1px solid #e4ede7;border-radius:13px}.student-page-grid button.active{border-color:#76b494}.student-page-grid img{border-radius:8px;aspect-ratio:16/9;object-fit:contain;width:100%}.student-page-grid button>span{display:flex;align-items:center;justify-content:space-between;font-size:10px;padding:10px 3px 5px;color:#739680}.student-page-grid small{font-size:8px;background:#d4efdf;padding:3px 5px;border-radius:99px}.zoom-overlay{position:fixed;inset:0;background:#17261df5;z-index:100;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:20px;overflow:auto}.zoom-overlay>.icon-button{position:absolute;right:20px;top:20px;background:#fff;z-index:1}.zoom-overlay img{max-width:100%;max-height:85vh;object-fit:contain}.zoom-overlay p{font-size:11px;color:#acc4b3}@media(min-width:1500px){.admin-main{margin-left:auto;margin-right:auto;width:calc(100% - 250px);max-width:1220px;padding-left:30px}.overview-grid{grid-template-columns:1fr 1fr}.overview-card{padding:30px 36px}.color-ribbons{grid-template-columns:78px 78px 1fr}.activity-note{padding:21px}.large-count{font-size:86px}}@media(max-width:1100px){.sidebar{width:165px;padding-left:12px;padding-right:12px}.admin-main{margin-left:184px;width:calc(100% - 184px);padding-right:8px}.overview-grid{gap:16px}.overview-card{padding:22px 21px}.activity-card{padding:23px 19px 0}.activity-note{padding:15px 12px;gap:9px}.activity-note>svg{display:none}.activity-footer{margin-left:-19px;margin-right:-19px;padding-left:19px}.color-ribbons{grid-template-columns:47px 47px 1fr}.ribbon{padding:10px 6px}.teaching-grid{grid-template-columns:minmax(0,1fr) 200px;gap:15px}.keyboard-hint{display:none}.content-panel{padding:24px}.deck-row{gap:12px}.deck-cover{width:80px;height:53px}.deck-description>span{font-size:9px}.deck-row>.status{display:none}}@media(max-width:800px){.admin-shell{padding:0 0 95px;display:block}.sidebar{inset:auto 0 0;width:100%;height:79px;border-radius:22px 22px 0 0;background:#f5fbf7ed;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);padding:5px 15px max(5px,env(safe-area-inset-bottom));border:1px solid #ffffff99}.sidebar>.brand-link,.sidebar-bottom{display:none}.sidebar nav{flex-direction:row;justify-content:space-around;margin:0;gap:0}.sidebar nav a{flex-direction:column;padding:4px 10px;gap:1px;font-size:10px;min-width:62px;border-radius:15px}.sidebar nav a.active{background:transparent}.sidebar nav a small{display:none}.sidebar .nav-circle{width:35px;height:35px}.admin-main{width:100%;margin:0;padding:0 23px}.topbar{margin-bottom:24px;height:73px}.topbar .today{display:none}.topbar-right{gap:12px}.page-heading{margin-bottom:25px}.page-heading h1{font-size:29px}.page-heading p{font-size:11px}.page-heading .eyebrow{font-size:8px;letter-spacing:1.5px}.page-heading>.button{font-size:11px;padding:11px 15px;gap:6px}.overview-grid{grid-template-columns:1fr 1fr;gap:15px}.activity-count{margin-top:18px}.activity-note h3{font-size:12px}.activity-note p{font-size:9px}.activity-note .note-icon{width:29px;height:29px}.activity-note small{font-size:8px}.activity-footer{font-size:9px}.settings-grid{gap:16px}.teaching-grid{grid-template-columns:1fr}.lesson-side{display:grid;grid-template-columns:1fr 1fr;gap:15px}.lesson-options{margin:0}.lesson-summary{padding:24px}.teaching-heading{align-items:flex-start}.teaching-heading h1{font-size:23px;line-height:1.5}.teaching-heading .button{padding:10px 13px;min-height:40px;font-size:11px}.button-group{gap:5px;flex-shrink:0}.login-art{padding:35px}.login-statement h1{font-size:35px}.login-statement>p{font-size:12px}.paper-stack{transform:scale(.8);margin-left:0}}@media(max-width:550px){.admin-main{padding:0 18px}.topbar{height:66px;margin-bottom:23px}.breadcrumb{font-size:10px}.breadcrumb span{margin:0 8px}.topbar-right .avatar{width:30px;height:30px;font-size:11px}.topbar .icon-button{width:31px;height:31px}.page-heading{gap:10px}.page-heading h1{font-size:28px;margin-top:9px;letter-spacing:-1px}.page-heading p{font-size:10px}.page-heading>.button{padding:11px 13px;font-size:10px;min-height:39px;margin-top:24px}.page-heading>.button svg{width:15px}.overview-grid{grid-template-columns:1fr;gap:17px}.overview-card{padding:23px 25px}.large-count{font-size:76px;margin-top:18px}.metric-details{margin-top:23px;margin-bottom:24px}.metric-details>div{flex:1}.metric-details small{font-size:10px}.metric-details strong{font-size:12px}.color-ribbons{grid-template-columns:63px 63px 1fr;height:137px}.ribbon.striped{padding:12px}.activity-card{padding:23px 23px 0}.activity-count{margin:17px 0 15px}.activity-note{padding:17px 15px;gap:15px}.activity-note .note-icon{width:35px;height:35px}.activity-note h3{font-size:14px}.activity-note p{font-size:10px}.activity-note small{font-size:9px}.activity-note>svg{display:block}.activity-footer{margin:10px -23px 0;padding:13px 23px}.content-panel{padding:23px 18px;border-radius:24px}.panel-heading{align-items:center;margin-bottom:15px;flex-wrap:wrap}.panel-heading h2{font-size:18px;gap:9px}.panel-heading>.text-link{font-size:10px}.deck-row{gap:11px;padding:17px 0;flex-wrap:wrap;position:relative}.deck-cover{width:65px;height:48px;border-radius:9px}.title-button{font-size:12px}.deck-description>span{font-size:9px;gap:5px}.deck-actions .button{padding:8px 11px;min-height:32px;font-size:10px;gap:3px}.deck-actions .button svg{width:13px}.deck-actions .icon-button{width:29px;height:29px}.deck-actions{gap:0}.deck-row:has(.deck-actions .icon-button) .deck-actions{width:100%;justify-content:flex-end;padding-top:2px}.deck-row:has(.deck-actions .icon-button) .deck-actions .compact{margin-right:auto}.search-field{max-width:none;width:100%;margin-top:6px}.filter-tabs{gap:3px;justify-content:space-between}.filter-tabs button{font-size:10px;padding:8px 9px}.page-footer{font-size:8px;padding:25px 0 5px}.class-row{gap:12px;flex-wrap:wrap}.class-icon{width:43px;height:43px;border-radius:14px}.class-row strong{font-size:12px}.class-row p{font-size:10px}.class-row>svg{width:16px}.class-row>.status{font-size:9px}.settings-grid{grid-template-columns:1fr}.settings-grid h2{font-size:19px}.teaching-heading{display:block}.teaching-heading .button-group{margin-top:17px}.teaching-heading h1{font-size:24px}.teaching-heading p{font-size:10px}.stage-panel{padding:15px}.stage-controls .button{padding:11px 16px;font-size:12px}.stage-controls{margin-top:16px}.lesson-side{grid-template-columns:1fr}.lesson-summary{display:flex;align-items:center;gap:14px;padding:19px}.lesson-summary .large-count{font-size:36px;margin:0;white-space:nowrap}.lesson-summary .large-count>span{font-size:10px;margin-left:7px}.lesson-summary p{font-size:10px;margin:0}.lesson-options{padding:20px}.lesson-options .system-line{font-size:12px}.lesson-options strong{font-size:11px}.filmstrip button{flex-basis:110px}.preview-controls{flex-wrap:wrap;justify-content:center}.preview-controls .button{width:100%;margin:8px 0 0}.modal{padding:23px}.modal h2{font-size:21px}.modal .dropzone{min-height:200px}.dropzone>span:last-of-type{font-size:10px}.login-screen{display:block;background:radial-gradient(ellipse at 0 0,#b9f2dc,transparent 65%),#edf1fa;min-height:100dvh;padding:30px 20px}.login-art{background:none;padding:0 10px}.login-statement{margin:35px 0}.login-statement .eyebrow{font-size:8px}.login-statement h1{font-size:34px;margin:13px 0}.login-statement>p{font-size:12px}.paper-stack,.login-art>.subtle{display:none}.login-form{padding:27px 23px 30px;background:#fbfdfcbd;border-radius:27px;width:100%;max-width:420px;margin:0 auto}.login-form>.round-label{display:none}.login-form h2{margin-top:0;font-size:23px}.login-note{margin-top:25px;font-size:10px}.login-form form label{font-size:12px}.student-surround{padding:0;background:#edf3ed}.student-shell{border-radius:0;min-height:100dvh;max-width:480px;box-shadow:none}.student-header{padding-top:max(26px,env(safe-area-inset-top))}.classroom-shell{padding-bottom:104px}.join-shell{display:flex;flex-direction:column}.join-intro{padding-top:17px}.join-intro h1{font-size:39px}.join-illustration{height:213px;margin-top:18px}.join-paper{height:195px;width:194px;left:64px}.floating-star{right:21px}.join-form{margin-top:15px}.student-footer{margin-top:auto}.mobile-bottom-nav{position:fixed;max-width:480px;margin:0 auto;z-index:20;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.classroom-shell>.error{margin:10px 20px}.toast{bottom:100px;font-size:12px}.student-reading{margin-top:2px}.student-tip{margin-top:25px}.student-header .student-title{font-size:12px}.student-tabs,.student-topline{padding-bottom:22px}.reading-heading h1{font-size:18px}.follow-card{margin-top:20px}.student-download-card{margin-top:11px}.follow-card p,.student-download-card p{font-size:10px}.projection-footer{font-size:9px;padding:10px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}:root{--ink: #20261d;--muted: #73786e;--line: #e6e9e1;--primary: #214619;--green: #79dc29;--mint: #e6f3d8;--lemon: #f0f5e9;--lavender: #e7f1dc;--coral: #bedc9c;--serif: "Bodoni 72", "Didot", "Times New Roman", "Songti SC", "STSong", serif;--panel: #fff;background:#f4f5f1;color:var(--ink)}body{background:#f4f5f1}h1,h2,h3{text-wrap:balance}.button{border-radius:99px;background:#f1f3ed;color:#2d3828;border:1px solid transparent;min-height:44px}.button.primary{background:var(--primary);color:#fff}.button.primary:hover:not(:disabled){background:#315f25}.button:hover:not(:disabled){transform:translateY(-1px);background:#e7eddf}.button.danger{color:#a23d34;background:#fff1ee}.icon-button{background:#fff;border:1px solid var(--line)}.icon-button:hover{background:var(--mint)}.brand{letter-spacing:-1px}.brand-mark{background:#e6f3d8;border-radius:13px;color:#315b1f}.brand-en{color:#6a775f;letter-spacing:2.6px}.avatar{background:#e5eddb;color:#35532a}.eyebrow{color:#6f7e63;letter-spacing:2px;font-size:9px}.subtle{color:var(--muted)}.tiny-icon,.round-label{border-color:#dfe6d8;background:#f6f8f1}.text-link{color:#425b32}input,select{border-color:var(--line);background:#f6f7f3;border-radius:15px}input:focus,select:focus{border-color:#79a55c;box-shadow:0 0 0 3px #9cd56f20}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline-color:#558c30}.toast{background:#244d1b;color:#fff}.soft-note{background:#f1f5eb;color:#536b3e}.live-dot{background:#54892d}.admin-shell{background:#f4f5f1;padding:24px;gap:28px}.sidebar{left:24px;top:24px;bottom:24px;width:190px;background:#fff;border:0;border-radius:28px;padding:29px 16px 18px}.sidebar nav{margin-top:52px;gap:8px}.sidebar nav a{color:#7b8174;border-radius:18px}.sidebar nav a.active{background:#eaf3df;color:#29431b}.active .nav-circle{background:#d5edbb;border:0}.sidebar-caption{color:#8a917f}.account{border-top-color:#edf0e8}.admin-main{margin-left:214px;width:calc(100% - 214px);max-width:1600px;padding:0 12px}.topbar{border-bottom:1px solid #e3e7dc;margin-bottom:28px;height:59px}.breadcrumb{color:#747e6b}.breadcrumb span{color:#b8c1ae}.today{color:#7b8373}.page-heading{margin:0 0 28px;align-items:center}.page-heading h1{font-family:var(--serif);font-size:37px;font-weight:400;letter-spacing:-1px;margin-top:10px}.page-heading p{color:#818776;font-size:12px}.page-heading>.button{margin-top:0}.teaching-dashboard{display:grid;grid-template-columns:1.25fr 1fr;gap:22px;margin-bottom:27px}.day-hero{position:relative;overflow:hidden;min-height:439px;border-radius:36px;background:radial-gradient(ellipse at 4% 0%,#d7f310 0,transparent 49%),radial-gradient(ellipse at 90% 4%,#43cc03 0,transparent 66%),linear-gradient(180deg,#8bdf15,#b4e884 49%,#fafff8 86%);padding:22px 30px 18px;display:flex;flex-direction:column}.editorial-word{font-family:var(--serif);font-size:clamp(64px,6.3vw,94px);line-height:1;letter-spacing:-5px;font-weight:400;white-space:nowrap;color:#f6ffd9}.editorial-word em{font-style:normal;opacity:.45}.hero-message{text-align:center;margin:21px 0 0;z-index:1}.hero-message .eyebrow{color:#3f5b12;font-size:8px}.hero-message h2{font:400 31px/1.35 var(--serif);color:#264b16;letter-spacing:-1px;margin:9px 0}.hero-message p{color:#4c7134;font-size:10px}.hero-paper-scene{position:relative;height:113px;margin-top:22px}.scene-paper{position:absolute;width:155px;height:143px;padding:17px;border-radius:14px;background:#fff;box-shadow:0 3px 18px #3d681519;display:flex;flex-direction:column;justify-content:space-between}.scene-paper small{font-size:6px;letter-spacing:.8px}.scene-paper span{font:400 16px/1.4 var(--serif)}.scene-paper i{font-style:normal;font-size:7px;color:#8b947f}.paper-left{left:calc(50% - 177px);transform:rotate(-12deg);top:16px}.paper-center{left:calc(50% - 70px);transform:rotate(-3deg);width:140px;top:0;z-index:2;background:#509f25;color:#fff}.paper-center strong{font:400 56px/1 var(--serif);letter-spacing:-4px}.paper-center span{font:9px/1.5 inherit}.paper-right{left:calc(50% + 31px);transform:rotate(12deg);top:19px}.hero-start{z-index:3;width:100%;min-height:57px;border-radius:20px;padding:0 22px;background:#fff;box-shadow:0 5px 18px #40502209;display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-family:var(--serif);font-size:20px}.hero-start:hover{background:#f9fff3}.dashboard-aside{display:grid;grid-template-rows:1fr 1fr;gap:20px;min-width:0}.current-class-card{border-radius:33px;padding:24px 28px 21px;background:#fff;display:flex;flex-direction:column}.capsule{background:#eef6e5;color:#557b37;font-size:10px;border-radius:99px;padding:7px 10px}.card-kicker{color:#9ba28f;font-size:8px;letter-spacing:1.6px;margin:23px 0 8px}.current-class-card h2{font:400 26px/1.4 var(--serif);letter-spacing:-.8px}.current-class-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:15px}.current-class-bottom p{font-size:11px;color:#7b836e}.round-action{width:38px;height:38px;border-radius:50%;background:#f1f4ec;display:flex;align-items:center;justify-content:center}.stat-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px}.editorial-stat{border-radius:32px;padding:23px;background:#fff;position:relative;overflow:hidden;display:flex;flex-direction:column}.editorial-stat>span{font-size:11px}.editorial-stat>strong{font:400 78px/1.15 var(--serif);letter-spacing:-5px;margin-top:14px;z-index:1}.editorial-stat strong small{font:12px/1 inherit;letter-spacing:0;margin-left:8px}.editorial-stat>div{display:flex;justify-content:space-between;align-items:center;margin-top:auto;z-index:1}.editorial-stat div small{font-size:9px}.vivid-stat{background:radial-gradient(ellipse at 15% 0%,#d0ee09,transparent 75%),linear-gradient(155deg,#75d51d,#b3e789 75%,#f5fcf1)}.stat-watermark{position:absolute;right:-20px;bottom:13px;transform:rotate(-18deg);opacity:.19}.content-panel{background:#fff;border-radius:30px;padding:26px 30px;border:0}.panel-heading h2{font:400 25px/1.3 var(--serif)}.count-bubble{background:#f2f4ed;color:#667452;font:10px/1.5 -apple-system,BlinkMacSystemFont,sans-serif}.deck-list{gap:0}.deck-row{border-radius:0;padding:17px 0;border-bottom:1px solid #f0f2eb;background:transparent}.deck-row:last-child{border-bottom:0}.deck-cover{border-radius:12px}.title-button{font-size:14px}.deck-description>span{color:#919785}.status.ready{color:#628536;background:#f0f6e8}.status.processing,.status.queued{background:#f0f4e8;color:#747e4e}.filter-tabs{border-bottom:1px solid #e9ede2;padding-bottom:13px;gap:8px}.filter-tabs button{border-radius:99px;background:#f5f6f2}.filter-tabs .selected{background:#e0efcb;color:#345120}.search-field{background:#f3f5ef;border-radius:99px}.class-row{border-radius:22px;background:#f7f8f4;padding:22px}.class-icon{background:#e6f1d9;color:#617e46}.class-row strong{font:400 20px/1.5 var(--serif)}.class-row p{color:#848c79}.page-footer{color:#a0a793}.settings-grid .content-panel{padding:30px}.settings-grid h2{font-family:var(--serif);font-size:26px}.system-line{border-color:#e9eddf}.modal{border-radius:32px;background:#fff;border:1px solid #f5f7f0;box-shadow:0 30px 100px #23331a25}.modal::backdrop{background:#24301c54;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.modal-heading h2{font:400 29px/1.4 var(--serif)}.dropzone{background:linear-gradient(145deg,#f0f8e5,#fcfdf9);border-color:#c8d9b7;border-radius:24px}.dropzone.drag{background:#e3f3d1;border-color:#6c993d}.upload-orbit{background:#e1f3c8;color:#426b24}.upload-progress progress{accent-color:#5b9634}.mini-deck{background:#f5f7f0}.toggle-row input{accent-color:#558d31}.qr-frame{background:#fff;border:1px solid #e6eddd;border-radius:24px}.join-code{font-family:var(--serif);color:#2c4b1e}.teaching-heading h1{font-size:32px}.stage-panel,.lesson-options{background:#fff;border-radius:28px}.stage-meta{color:#728060}.stage-meta>span:last-child{font:24px var(--serif)}.slide-stage{background:#f2f4ed;border-radius:18px}.lesson-summary{background:radial-gradient(ellipse at 0 0,#cbe923,transparent 70%),linear-gradient(140deg,#91d944,#e6f3d8);border-radius:28px}.lesson-summary p{color:#58743b}.large-count{font-family:var(--serif);font-weight:400}.lesson-summary .note-icon{background:#ffffff70}.filmstrip{background:#fff;border-radius:26px}.filmstrip button{border-radius:14px;background:#f1f4eb}.filmstrip button.active{border-color:#70a63c;background:#e3f2d2}.projection-footer{color:#d4e9c0}.login-screen{background:#f5f6f1;padding:24px;gap:0}.login-art{border-radius:36px;background:radial-gradient(ellipse at 8% 5%,#d6ec08,transparent 50%),radial-gradient(ellipse at 90% 0,#4dcc04,transparent 65%),linear-gradient(180deg,#85da25,#e3f4d2 80%,#f6faf1)}.login-statement .editorial-word{font-size:clamp(70px,7.7vw,114px);margin-bottom:48px}.login-statement h1{font:400 44px/1.45 var(--serif);color:#2b501b}.login-statement>p{color:#648043}.p1{background:#fff}.p2{background:#5a9d2d}.p3{background:#c2e79d}.p1>span{font-family:var(--serif)}.login-form h2{font:400 34px/1.4 var(--serif)}.login-form>.text-link{color:#527336}.student-surround{--ink: #1c3044;--muted: #6d8295;--line: #e0eaf2;--primary: #166db6;--mint: #e4f2fc;--green: #bde0fb;--lavender: #e9f3fc;--lemon: #eaf4fc;background:#eef2f5;color:var(--ink)}.student-shell{background:#f4f7fa;border-radius:37px;box-shadow:0 12px 60px #294a6810}.student-shell.join-shell{background:radial-gradient(ellipse 120% 47% at 0 0,#4fdbf4 0,transparent 76%),radial-gradient(ellipse 130% 48% at 100% 0,#1595eb 0,transparent 80%),linear-gradient(180deg,#b2e4fb 0,#f7fafc 63%)}.student-header{padding:24px 24px 17px}.student-header .brand-mark{background:#ffffff70;color:#286d99}.student-header .brand-en{color:#347497}.student-header .round-label{background:#ffffff70;border:0;color:#276887}.student-shell .avatar{background:#d6eafa;color:#236392}.student-shell .button{color:#335876;background:#e6f0f7}.student-shell .button.primary{color:#fff;background:#176cba}.student-shell .button.primary:hover:not(:disabled){background:#125998}.student-shell .icon-button{color:#42779d;border-color:#deebf4;background:#fff}.student-shell .tiny-icon,.student-shell .round-label{color:#3e7da9;border-color:#d4e6f4}.student-shell .text-link{color:#377eae}.student-shell :focus-visible{outline-color:#237dbd}.join-intro{padding:0 22px;text-align:center}.join-intro .editorial-word{font-size:72px;letter-spacing:-4px;color:#e2f6ff;margin:3px -2px 37px}.join-intro>.eyebrow{color:#266e96;font-size:7px;letter-spacing:1.6px}.join-intro h1{font:400 31px/1.4 var(--serif);margin:12px 0;letter-spacing:-1px;color:#174e73}.join-intro>p{color:#387da5;font-size:11px;line-height:1.8}.student-paper-scene{height:120px;margin-top:31px;position:relative}.student-note{position:absolute;top:13px;width:136px;height:120px;border-radius:13px;padding:16px;background:#fff;box-shadow:0 3px 18px #1b67821a;display:flex;flex-direction:column;justify-content:space-between;text-align:left}.student-note small{font-size:7px}.student-note span{font:400 15px/1.4 var(--serif)}.note-left{left:0;transform:rotate(-11deg)}.note-blue{z-index:2;top:0;left:calc(50% - 59px);width:118px;background:#1599e4;color:#e8f8ff;transform:rotate(-5deg)}.note-blue strong{font:400 26px/1.2 var(--serif)}.note-blue span{font:8px/1.4 -apple-system,sans-serif}.note-right{right:0;transform:rotate(12deg)}.join-form{position:relative;z-index:3;background:#fff;border-radius:29px;margin:0 12px;padding:22px;box-shadow:0 10px 24px #367b9d05}.join-form h2{font:400 25px/1.4 var(--serif)}.join-form>p{color:#8192a2;font-size:10px;margin:9px 0 17px}.code-input{background:#f5f9fc;border-color:#e2edf5;color:#1d5e91}.code-input::placeholder{color:#91a5b6;font-size:12px}.join-perks{color:#6d90ad;margin-top:17px}.student-footer{color:#8a9eaf;font-size:9px;padding:22px 25px}.student-footer a{color:#387eab}.classroom-shell{background:radial-gradient(ellipse 120% 33% at 10% 0,#70daf8,transparent 100%),linear-gradient(180deg,#bce5fa,#f3f7fb 43%)}.student-topline{color:#39799e;font-size:10px}.connection{color:#286f9a}.connection.offline{color:#996c25}.student-tabs{background:#ffffff80;border-radius:99px;margin-left:20px;margin-right:20px;padding:5px}.student-tabs button{border-radius:99px;color:#678ba6}.student-tabs button.selected{background:#fff;color:#205f8b;box-shadow:0 3px 10px #3b87b00a}.student-reading{background:#fff;border-radius:29px;margin-top:17px}.reading-heading h1{font:400 24px/1.4 var(--serif)}.reading-count strong{font:400 49px/1 var(--serif);letter-spacing:-3px;color:#266d9f}.reading-count>span{color:#93adbf}.student-slide{border-radius:17px;background:#edf4fa}.zoom-hint{background:#183d60a6}.mobile-page-controls>span{color:#7893a8}.follow-card{border-radius:24px;background:linear-gradient(120deg,#caeafd,#e9f4fc);color:#265b7d}.follow-card.lavender{background:#ecf2f7}.follow-card h3{font-family:var(--serif);font-size:20px}.follow-card p,.follow-card.lavender p{color:#5f89a5}.follow-card .note-icon{background:#ffffff80;border-color:#c7e3f5}.switch{background:#237fbe}.student-download-card{background:#fff;border:1px solid #e4edf4;border-radius:24px;color:#315c7a}.student-download-card h3{font:400 19px/1.4 var(--serif)}.student-download-card p{color:#879dab}.student-download-card .note-icon{background:#edf5fc;border-color:#dcebf5}.student-tip{color:#8da3b4}.mobile-bottom-nav{background:#ffffffef;border-top:1px solid #e6eff5;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px)}.mobile-bottom-nav button{color:#8297a8}.mobile-bottom-nav button.active{color:#247db7}.bottom-brand,.bottom-brand span{color:#8eafc4}.mobile-content h1{font:400 29px/1.4 var(--serif)}.mobile-content>p{color:#7894a9}.file-card{background:#fff;border-radius:27px}.file-card.lavender{background:linear-gradient(140deg,#fff,#e4f3fd)}.file-card.lemon{background:#fff;border:1px solid #dfeaf3}.file-kind{color:#5e8cad}.file-card h2{font:400 24px/1.5 var(--serif)}.file-card p,.file-card.lemon p{color:#7692a8}.file-card .button{background:#186fb5;color:#fff}.download-locked{background:#e9f2f9;color:#6587a1}.student-page-grid button{background:#fff;border-radius:18px}.student-page-grid button.active{border-color:#2588cb;background:#e3f3ff}.student-page-grid button>span{color:#437492}@media(min-width:1500px){.admin-main{padding:0 35px}.day-hero{min-height:470px}.hero-message{margin-top:28px}.hero-paper-scene{margin-top:35px}}@media(max-width:1100px){.teaching-dashboard{grid-template-columns:1.15fr 1fr;gap:16px}.day-hero{padding:24px 20px 16px}.editorial-word{font-size:68px}.current-class-card{padding:24px}.current-class-card h2{font-size:23px}.editorial-stat{padding:20px}.editorial-stat>strong{font-size:68px}}@media(max-width:800px){.admin-shell{padding:0 0 96px}.admin-main{margin:0;width:100%;padding:0 24px}.sidebar{inset:auto 0 0;width:100%;height:79px;border-radius:24px 24px 0 0;padding:5px 12px max(5px,env(safe-area-inset-bottom));background:#fffffff5;border-top:1px solid #e5ebde}.sidebar nav{margin:0;gap:0}.sidebar nav a.active{background:transparent}.sidebar nav a{font-size:10px}.sidebar .active .nav-circle{background:#dcedc8}.topbar{height:66px;margin-bottom:22px}.page-heading h1{font-size:31px}.page-heading p{font-size:11px}.teaching-dashboard{gap:16px}.day-hero{min-height:420px}.editorial-word{font-size:60px}.hero-message h2{font-size:27px}.hero-message p{font-size:9px}.current-class-card{padding:22px}.stat-pair{gap:12px}.editorial-stat{padding:19px}.editorial-stat>strong{font-size:64px}.login-screen{padding:16px}.login-art{padding:28px}.login-statement .editorial-word{font-size:67px}.login-statement h1{font-size:34px}}@media(max-width:550px){.admin-main{padding:0 16px}.page-heading{margin-bottom:22px;align-items:center}.page-heading h1{font-size:28px}.page-heading p{font-size:10px}.page-heading>.button{min-height:42px;padding:10px 15px;margin-top:0}.teaching-dashboard{grid-template-columns:1fr;gap:16px;margin-bottom:20px}.day-hero{min-height:415px;padding:22px 22px 16px;border-radius:32px}.day-hero .editorial-word{font-size:69px;letter-spacing:-4px}.hero-message{margin-top:26px}.hero-message h2{font-size:29px}.hero-message p{font-size:9px}.hero-paper-scene{height:114px;margin-top:21px}.hero-start{min-height:53px;font-size:19px}.dashboard-aside{grid-template-rows:auto auto;gap:16px}.current-class-card{padding:22px 24px;border-radius:29px;min-height:190px}.card-kicker{margin-top:20px}.current-class-card h2{font-size:24px}.stat-pair{gap:15px}.editorial-stat{min-height:185px;border-radius:29px;padding:22px}.editorial-stat>strong{font-size:75px;margin-top:9px}.editorial-stat>span{font-size:11px}.content-panel{padding:23px 20px;border-radius:28px}.panel-heading h2{font-size:24px}.deck-row{padding:18px 0;gap:12px}.deck-description .title-button{font-size:12px}.deck-cover{width:68px;height:46px}.deck-actions .button{min-height:38px;font-size:10px;padding:9px 12px}.deck-actions .icon-button{width:32px;height:36px}.deck-description>span{font-size:9px}.class-row{padding:18px}.class-row strong{font-size:18px}.class-row p{font-size:10px}.teaching-heading{flex-wrap:wrap;gap:18px}.teaching-heading h1{font-size:26px}.teaching-heading .button{min-height:43px;padding:10px 16px}.lesson-side{grid-template-columns:1fr 1fr;gap:12px}.lesson-summary,.lesson-options{border-radius:24px;padding:20px}.lesson-summary .large-count{font-size:57px}.lesson-summary p,.lesson-options .system-line{font-size:10px}.lesson-options>.button{font-size:10px;padding:10px;min-height:40px}.stage-panel{padding:18px;border-radius:25px}.stage-controls .button{min-height:44px}.filmstrip{border-radius:23px}.settings-grid .content-panel{padding:23px}.settings-grid h2{font-size:25px}.modal{border-radius:28px;padding:25px 23px}.modal-heading h2{font-size:27px}.login-screen{padding:12px;display:block}.login-art{min-height:auto;padding:25px;border-radius:30px}.login-statement{margin:30px 0 0}.login-statement .editorial-word{font-size:68px;letter-spacing:-4px;margin-bottom:25px}.login-statement h1{font-size:30px}.login-statement .paper-stack{display:none}.login-art>.subtle{margin-top:30px;font-size:9px}.login-form{padding:25px 0;width:calc(100% - 30px)}.login-form>.round-label{display:none}.login-form h2{margin-top:0;font-size:28px}.login-note{margin-top:25px}.student-surround{padding:0}.student-shell{min-height:100dvh;border-radius:0;box-shadow:none}.student-header{padding-top:24px}.join-intro .editorial-word{font-size:71px}.join-form{padding:22px}.student-reading{border-radius:28px}.student-tabs{margin-left:16px;margin-right:16px}.mobile-bottom-nav{padding-bottom:max(13px,env(safe-area-inset-bottom))}}@media(max-width:360px){.day-hero .editorial-word{font-size:59px}.join-intro .editorial-word{font-size:62px}.scene-paper{width:130px}.paper-left{left:calc(50% - 151px)}.paper-right{left:calc(50% + 22px)}.paper-center{width:122px;left:calc(50% - 61px)}.hero-message h2{font-size:26px}.student-note{width:119px}.note-blue{width:110px;left:calc(50% - 55px)}.lesson-side{grid-template-columns:1fr}.page-heading h1{font-size:26px}.page-heading>.button{padding:10px 12px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}.editorial-stat strong small{font-family:inherit;font-size:14px;line-height:1;letter-spacing:0}.paper-center span{font-family:-apple-system,BlinkMacSystemFont,sans-serif;font-size:9px;line-height:1.5}.day-hero{background:linear-gradient(0deg,#fff,#ffffffec 12%,#fff0 67%),radial-gradient(ellipse at 0 0,#d7f000 0,transparent 60%),#4ed000}.vivid-stat{background:linear-gradient(0deg,#f5fcf1,#fff0 68%),radial-gradient(ellipse at 0 0,#caed00,transparent 70%),#78d91c}.student-shell .soft-note{background:#eaf3fa;color:#6a879e}.student-shell .coral-dot{background:#91c6e7}.student-shell .file-card .note-icon{border-color:#d4e7f4;background:#f4faff}.admin-shell:is([data-section=library],[data-section=classes],[data-section=settings]) .page-heading{position:relative;overflow:hidden;min-height:188px;padding:28px 32px;border-radius:31px;background:linear-gradient(90deg,#ecf5dd,#e4f1d1 56%,#b8e780)}.admin-shell:is([data-section=library],[data-section=classes],[data-section=settings]) .page-heading:after{content:"Collection.";position:absolute;right:20px;bottom:-18px;font:400 108px/1 var(--serif);color:#73984b21;letter-spacing:-5px;pointer-events:none}.admin-shell[data-section=classes] .page-heading:after{content:"Moments."}.admin-shell[data-section=settings] .page-heading:after{content:"Your space."}.admin-shell .page-heading>*{position:relative;z-index:1}.admin-shell[data-section=library] .deck-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}.admin-shell[data-section=library] .deck-row{display:grid;grid-template-columns:1fr auto;gap:18px 10px;background:#f6f8f2;border:1px solid #edf0e6;border-radius:24px;padding:17px}.admin-shell[data-section=library] .deck-cover{grid-column:1/-1;width:100%;height:auto;aspect-ratio:16/9;border-radius:15px}.admin-shell[data-section=library] .deck-description{grid-column:1/-1;width:100%}.admin-shell[data-section=library] .title-button{font:400 22px/1.4 var(--serif);text-align:left;white-space:normal}.admin-shell[data-section=library] .deck-description>span{margin-top:12px;font-size:10px}.admin-shell[data-section=library] .deck-row>.status{display:block;justify-self:start;align-self:center}.admin-shell[data-section=library] .deck-actions{justify-self:end}@media(max-width:550px){.admin-shell:is([data-section=library],[data-section=classes],[data-section=settings]) .page-heading{min-height:161px;padding:23px;border-radius:27px;gap:10px}.admin-shell:is([data-section=library],[data-section=classes],[data-section=settings]) .page-heading:after{font-size:75px;bottom:-12px;right:8px}.admin-shell[data-section=library] .deck-list{grid-template-columns:1fr;gap:17px}.admin-shell[data-section=library] .content-panel{padding:23px 16px}.admin-shell[data-section=library] .title-button{font-size:21px}}@media(max-width:550px){.lesson-summary{display:block;min-width:0}.lesson-summary .large-count{margin:16px 0 12px;font-size:57px;white-space:normal}.lesson-summary .large-count>span{font-size:10px;margin-left:5px}.lesson-summary p{line-height:1.7;white-space:normal}.lesson-side{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}@media(max-width:360px){.lesson-side{grid-template-columns:1fr}}.zoom-hint{color:#fff;background:#245377df}