:root{font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif;color:#1c2925;background:#f4f7f5;font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-width:320px}button,input,textarea,select{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:248px;background:#103f36;color:#fff;padding:24px 18px;display:flex;flex-direction:column;z-index:20}.brand{display:flex;align-items:center;gap:12px;padding:4px 8px 28px}.brand-mark{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:#e6f3ed;color:#176b5b;font-size:21px;font-weight:700}.brand strong,.brand small,.sidebar-user strong,.sidebar-user small{display:block}.brand small,.sidebar-user small{margin-top:3px;color:#b9d4cd;font-size:12px}nav{display:grid;gap:8px}nav a{color:#d7e8e3;text-decoration:none;padding:12px 14px;border-radius:10px}nav a.router-link-active{background:#fff;color:#10483c;font-weight:600}.sidebar-user{margin-top:auto;border-top:1px solid #32665b;padding:18px 6px 0;display:grid;grid-template-columns:38px 1fr auto;gap:10px;align-items:center}.avatar{width:36px;height:36px;border-radius:50%;background:#d8ece4;color:#176b5b;display:grid;place-items:center;font-weight:700}.preset-avatar{overflow:hidden;border:1px solid rgba(16,79,67,.12);flex:0 0 auto}.preset-avatar>span{line-height:1;font-size:21px}.preset-avatar.large{width:58px;height:58px}.preset-avatar.large>span{font-size:34px}.avatar-picker{display:grid;grid-template-columns:repeat(auto-fit,minmax(68px,1fr));gap:9px;margin-top:4px}.avatar-choice{min-width:0;border:1px solid #d3e0dc;border-radius:11px;padding:7px 4px;background:#fff;color:#53635e;display:grid;place-items:center;gap:5px}.avatar-choice>span{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-size:25px;border:1px solid rgba(16,79,67,.09)}.avatar-choice small{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.avatar-choice.selected{border-color:#176b5b;box-shadow:0 0 0 3px #176b5b21;color:#155d4f;font-weight:600}.text-button{border:0;background:transparent;color:inherit;padding:6px}.main-content{margin-left:248px;padding:34px clamp(20px,4vw,58px)}.mobile-header{display:none}.page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:26px}h1{margin:0 0 7px;font-size:clamp(25px,3vw,34px)}.legal-page{max-width:820px;margin:0 auto;padding:42px 24px 80px;line-height:1.8}.legal-page section{margin:28px 0}.verify-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:#f4f7f5}.verify-page .card{max-width:520px;padding:38px;text-align:center}.legal-check{display:flex;gap:9px;align-items:flex-start;margin-top:18px;font-size:13px;line-height:1.55}.legal-check input{width:auto;margin-top:4px}.sidebar-panel textarea,.danger-panel textarea{width:100%;margin:12px 0}.sidebar-panel,.danger-panel{margin-top:20px}.sidebar-account-link{margin:auto 18px 10px;padding:9px 12px;color:inherit;opacity:.78;font-size:13px}h2{margin:0 0 18px;font-size:19px}p{line-height:1.65}.muted{color:#65746f;margin:0}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px}.dashboard-head{align-items:center}.dashboard-actions{margin:0;justify-content:flex-end}.setup-card{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 20px;margin-bottom:20px;border:1px solid #c8ddd6;border-radius:14px;background:linear-gradient(135deg,#edf7f3,#fff)}.setup-card p{margin:4px 0 0;color:#65746f;font-size:13px}.setup-steps{display:flex;flex-wrap:wrap;gap:8px}.setup-steps a{color:#5e6d68;text-decoration:none;padding:7px 10px;border:1px solid #d8e3df;border-radius:99px;background:#fff;font-size:13px}.setup-steps a.done{color:#176b5b;border-color:#b9d5cc;background:#e7f3ef}.compact-setup{justify-content:flex-start;padding:11px 15px;margin-bottom:12px}.compact-setup>strong{white-space:nowrap;color:#28594f;font-size:14px}.compact-setup .setup-steps a{padding:5px 9px}.overview-grid{grid-template-columns:repeat(6,minmax(0,1fr))}.overview-grid .card{padding:16px 18px}.overview-grid .stat strong{margin-top:7px;font-size:25px}.overview-card{position:relative;display:block;color:inherit;text-decoration:none;transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease}.overview-card:hover{transform:translateY(-2px);border-color:#9fc7ba;box-shadow:0 8px 22px #163f3617}.overview-card:focus-visible{outline:3px solid rgba(23,107,91,.2);outline-offset:2px}.overview-card-arrow{position:absolute;top:14px;right:15px;color:#91a19b;font-size:21px;line-height:1}.overview-card:hover .overview-card-arrow{color:#176b5b}.accent-stat{background:linear-gradient(145deg,#f0f8f5,#fff)}.priority-bar{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:18px;min-height:62px;margin-top:14px;padding:11px 15px;border:1px solid #dce6e2;border-radius:13px;background:#fff}.priority-heading{display:flex;align-items:center;gap:9px;padding-right:17px;border-right:1px solid #e1e9e6}.priority-heading h2{margin:0;font-size:16px;white-space:nowrap}.priority-items{display:flex;gap:9px;min-width:0;overflow-x:auto}.priority-items a{min-width:170px;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:3px 10px;padding:8px 11px;border-radius:9px;background:#fff4d9;color:#3d443f;text-decoration:none}.priority-items a span{font-size:13px;font-weight:600}.priority-items a strong{grid-row:1/3;grid-column:2;color:#a35b13;font-size:22px}.priority-items a b{color:#997221;font-size:11px;font-weight:500}.priority-clear{margin:0;color:#71807b;font-size:13px}.priority-clear span{display:inline-grid;width:24px;height:24px;margin-right:7px;place-items:center;border-radius:50%;background:#e5f2ed;color:#176b5b;font-weight:700}.capacity-list,.assignment-progress-list{display:grid;gap:13px}.capacity-row,.assignment-progress-row{display:grid;gap:8px;color:inherit;text-decoration:none;padding:12px;border:1px solid #e0e9e6;border-radius:11px;background:#fbfdfc}.capacity-title,.assignment-progress-main,.assignment-progress-foot{display:flex;justify-content:space-between;gap:12px;align-items:center}.capacity-title span,.assignment-progress-main>span{color:#53655f;font-size:13px;white-space:nowrap}.capacity-row p,.assignment-progress-row p,.assignment-progress-foot{margin:0;color:#71807b;font-size:12px}.mini-progress{height:7px;overflow:hidden;border-radius:99px;background:#e2ebe7}.mini-progress span{display:block;height:100%;border-radius:inherit;background:#2a8a74}.dashboard-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.section-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:16px}.section-head h2{margin-bottom:5px}.text-link{color:#176b5b;text-decoration:none;font-weight:600;white-space:nowrap}.dashboard-row{display:flex;align-items:center;justify-content:space-between;gap:14px;color:inherit;text-decoration:none;padding:12px 0;border-bottom:1px solid #e5ece9}.dashboard-row:last-child{border-bottom:0}.dashboard-row p{margin:4px 0 0;font-size:13px}.compact-empty{color:#74817d;padding:22px 12px;text-align:center;background:#f7faf8;border-radius:10px}.profile-panel summary{cursor:pointer;font-weight:700}.profile-panel[open] summary{margin-bottom:15px}.filter-bar{display:grid;grid-template-columns:minmax(180px,2fr) minmax(150px,1fr) minmax(130px,1fr);gap:10px;margin-bottom:18px}.row-actions{margin:0;justify-content:flex-end}.quick-comments{display:flex;flex-wrap:wrap;gap:7px;margin-top:2px}.quick-comments button{border:1px solid #cadbd5;border-radius:99px;padding:6px 9px;background:#f4f8f6;color:#35665c;font-size:12px}.sticky-grade-bar{position:sticky;bottom:12px;z-index:4;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 16px;border:1px solid #bcd5cd;border-radius:12px;background:#fffffff5;box-shadow:0 8px 24px #103f3624}.inner-panel{margin-top:18px;box-shadow:none}.remediation-form{display:grid;grid-template-columns:minmax(180px,1fr) minmax(220px,2fr) auto;gap:10px;margin-bottom:18px}.grading-switch{width:min(340px,100%);margin:0}.question-batch{border:1px solid #dce7e3;border-radius:14px;padding:18px;margin-top:16px;background:#fbfdfc}.question-batch h3{margin:10px 0 0}.batch-answer-row{display:grid;grid-template-columns:minmax(220px,1fr) minmax(300px,1.4fr);gap:18px;align-items:start;padding:16px 0;border-top:1px solid #e3ebe8}.batch-answer-row p{margin:7px 0}.batch-grade-fields{display:grid;grid-template-columns:100px 1fr;gap:9px}.batch-grade-fields .quick-comments{grid-column:1/-1}.answer-compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:14px 0}.answer-compare>div{display:grid;gap:5px;padding:13px;border:1px solid #dce6e2;border-radius:10px;background:#fafcfb}.ai-analysis{margin-top:14px;padding:17px;border:1px solid #c8ddd6;border-radius:12px;background:linear-gradient(135deg,#f4faf7,#fff)}.ai-analysis .section-head{margin-bottom:11px}.ai-analysis h3{margin:0 0 4px}.analysis-copy{white-space:pre-line;margin:0 0 13px}.card{background:#fff;border:1px solid #dde7e3;border-radius:16px;padding:22px;box-shadow:0 5px 18px #163f360a}.stat strong{display:block;font-size:30px;margin-top:12px;color:#176b5b}.panel{background:#fff;border:1px solid #dde7e3;border-radius:16px;padding:24px;margin-top:22px}.button{border:0;border-radius:10px;padding:11px 18px;background:#176b5b;color:#fff;font-weight:600}.button.secondary{background:#e7f1ed;color:#155d4f}.button.danger{background:#a93636}.button.compact{padding:8px 12px;border-radius:8px;font-size:13px}.button:disabled{opacity:.55;cursor:not-allowed}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.field{display:grid;gap:7px}.field.full{grid-column:1 / -1}label{font-weight:600;font-size:14px}input,textarea,select{width:100%;border:1px solid #cfdcd7;border-radius:9px;padding:11px 12px;color:#1c2925;background:#fff}textarea{min-height:100px;resize:vertical}input:focus,textarea:focus,select:focus{outline:3px solid rgba(23,107,91,.14);border-color:#176b5b}.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:18px}.table-wrap{width:100%;overflow-x:auto;overscroll-behavior-inline:contain}.table-wrap table{width:100%;min-width:680px;border-collapse:collapse}.table-wrap th,.table-wrap td{padding:12px 10px;border-bottom:1px solid #e3ebe8;text-align:left;vertical-align:top}.table-wrap th{color:#60706a;background:#f6f9f8;font-size:13px;white-space:nowrap}.table-wrap td{font-size:14px}.list{display:grid;gap:12px}.list-row{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid #e5ece9}.list-row:last-child{border-bottom:0}.list-row h3{margin:0 0 6px;font-size:16px}.paper-create-panel{display:grid;gap:16px;margin-bottom:22px}.paper-create-panel h2{margin-bottom:5px}.paper-create-copy p{margin:0}.paper-create-form{display:grid;gap:13px}.paper-create-fields{display:grid;grid-template-columns:minmax(260px,2fr) repeat(2,minmax(140px,1fr));gap:12px}.paper-create-field{display:grid;gap:6px}.paper-create-field span{color:#42514c;font-size:13px}.paper-create-footer{display:flex;align-items:center;gap:13px}.paper-create-footer .button{min-width:128px}.paper-list{display:grid;gap:14px}.paper-card{overflow:hidden;border:1px solid #d8e5e0;border-radius:14px;background:#fbfdfc}.paper-card-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:15px 17px}.paper-toggle{min-width:0;display:flex;align-items:center;gap:11px;border:0;padding:0;background:transparent;color:#1c2925;text-align:left}.paper-toggle strong,.paper-toggle small,.picker-paper-head strong,.picker-paper-head small{display:block}.paper-toggle strong{margin-bottom:4px;font-size:17px}.paper-toggle small,.picker-paper-head small{color:#65746f;font-size:12px;font-weight:400}.paper-chevron{width:26px;height:26px;display:grid;place-items:center;border-radius:8px;background:#e6f2ee;color:#176b5b;font-size:17px}.paper-questions{padding:0 17px 4px;border-top:1px solid #e1eae7;background:#fff}.paper-question-main{min-width:0;display:flex;align-items:flex-start;gap:13px}.question-number{flex:0 0 28px;height:28px;display:grid;place-items:center;border-radius:50%;background:#edf4f1;color:#176b5b;font-size:13px;font-weight:700}.question-paper-picker{display:grid;gap:14px;margin-top:10px}.picker-paper{border:1px solid #d8e5e0;border-radius:12px;padding:14px;background:#fbfdfc}.picker-paper-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.picker-paper .options{margin:12px 0 0}.class-summary{min-width:0}.class-code-line{display:flex;align-items:center;gap:10px;margin:4px 0 7px}.class-code{color:#104f43;font-size:25px;letter-spacing:.12em;font-variant-numeric:tabular-nums}.copy-button{border:1px solid #bdd4cc;border-radius:8px;padding:6px 10px;background:#f3f8f6;color:#176b5b;font-size:13px;font-weight:600;white-space:nowrap}.copy-button:hover{background:#e5f1ed}.copy-button:focus-visible{outline:3px solid rgba(23,107,91,.18)}.student-class-summary h3{margin:0;color:#24352f;font-size:19px;line-height:1.4}.student-class-summary>p{margin:5px 0 10px;color:#71807b;font-size:13px}.student-class-code{display:flex;align-items:center;gap:8px;color:#81908b;font-size:12px}.student-class-code code{padding:3px 7px;border-radius:6px;background:#eef4f2;color:#52645e;font-family:inherit;font-size:12px;font-weight:600;letter-spacing:.08em}.badge{display:inline-block;padding:4px 9px;background:#e6f2ee;color:#176b5b;border-radius:99px;font-size:12px;font-weight:600}.badge.warn{background:#fff0cf;color:#7d5708}.badge.bad{background:#fde5e5;color:#9d2c2c}.message{padding:12px 14px;border-radius:9px;background:#e7f2ee;margin:12px 0}.message.error{background:#fde8e7;color:#8b2929}.import-issue{color:#9d2c2c;margin:7px 0 0;font-size:14px;font-weight:600}.empty{padding:36px 20px;text-align:center;color:#6b7974;border:1px dashed #cbd9d4;border-radius:12px}.auth-page{min-height:100vh;display:grid;grid-template-columns:1fr minmax(360px,520px);background:#edf4f1}.auth-hero{padding:clamp(40px,8vw,110px);background:#124b40;color:#fff;display:flex;flex-direction:column;justify-content:center}.auth-brand{display:flex;align-items:center;gap:13px;margin-bottom:30px}.auth-brand>span{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;background:#e6f3ed;color:#176b5b;font-size:24px;font-weight:700}.auth-brand strong,.auth-brand small{display:block}.auth-brand strong{font-size:20px}.auth-brand small{margin-top:4px;color:#bcd8d0}.auth-hero h1{font-size:clamp(38px,6vw,70px);max-width:700px}.auth-hero p{color:#c7ddd7;max-width:580px}.auth-hero .auth-slogan{margin-top:24px;color:#fff;font-weight:600;letter-spacing:.08em}.auth-panel{background:#fff;padding:clamp(30px,6vw,70px);display:flex;flex-direction:column;justify-content:center}.auth-panel-brand{display:none;align-items:baseline;gap:8px;margin-bottom:28px;color:#176b5b}.auth-panel-brand strong{font-size:24px}.auth-panel-brand span{font-size:13px;color:#71807b}.admin-auth-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 15% 10%,#214f46 0,#102c27 42%,#081b18)}.admin-auth-card{width:min(460px,100%);padding:38px;border-radius:20px;background:#fff;box-shadow:0 30px 90px #00000047}.admin-auth-brand{display:flex;align-items:center;gap:13px;margin-bottom:34px}.admin-auth-brand>span{width:46px;height:46px;display:grid;place-items:center;border-radius:13px;background:#176b5b;color:#fff;font-size:20px;font-weight:700}.admin-auth-brand strong,.admin-auth-brand small{display:block}.admin-auth-brand small{margin-top:3px;color:#71807b}.admin-auth-card form{display:grid;gap:17px;margin-top:26px}.admin-login-button{width:100%;margin-top:4px}.admin-back-link{display:block;margin-top:24px;text-align:center}.admin-stat-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.admin-stat-grid .stat small{display:block;margin-top:7px;color:#71807b;font-size:12px}.admin-trend-panel{overflow:hidden}.trend-legend{display:flex;gap:14px;color:#66756f;font-size:12px}.trend-legend span{display:flex;align-items:center;gap:5px}.trend-legend i{width:9px;height:9px;border-radius:3px}.trend-legend .teacher,.daily-values .teacher{background:#238c75}.trend-legend .student,.daily-values .student{background:#65a9d0}.daily-chart{height:218px;display:grid;grid-template-columns:repeat(14,minmax(24px,1fr));align-items:end;gap:8px;padding-top:18px;overflow-x:auto}.daily-column{min-width:34px;display:grid;justify-items:center;gap:5px}.daily-values{height:150px;display:flex;align-items:end;justify-content:center;gap:2px}.daily-values span{width:10px;min-height:2px;border-radius:4px 4px 1px 1px;transition:height .25s ease}.daily-column strong{color:#42504b;font-size:12px}.daily-column small{color:#84908b;font-size:10px;white-space:nowrap}.admin-monitor-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.resource-list{display:grid;gap:22px}.resource-list article>div:first-child{display:flex;justify-content:space-between;gap:16px}.resource-list article small{display:block;margin-top:7px;color:#71807b}.resource-bar{height:9px;margin-top:9px;overflow:hidden;border-radius:99px;background:#e5ece9}.resource-bar span{display:block;height:100%;border-radius:inherit;background:#238c75}.resource-bar span.warning{background:#d99a20}.resource-bar span.critical{background:#c95143}.recommendation-list{display:grid;gap:10px}.recommendation-list article{display:grid;grid-template-columns:30px minmax(0,1fr);gap:10px;padding:13px;border-radius:11px;background:#edf6f2}.recommendation-list article>span{width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:#238c75;color:#fff;font-weight:700}.recommendation-list article.warning{background:#fff5dc}.recommendation-list article.warning>span{background:#d99a20}.recommendation-list article.critical{background:#fde9e7}.recommendation-list article.critical>span{background:#c95143}.recommendation-list p,.monitor-note p{margin:4px 0 0;color:#65746f;font-size:13px;line-height:1.55}.monitor-note{margin-top:18px;padding:14px;border:1px dashed #bdd1ca;border-radius:11px}.renewal-alert{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:20px;padding:17px 20px;border:1px solid #e7c779;border-radius:14px;background:#fff7df}.renewal-alert.expired{border-color:#e0aaa4;background:#fdecea}.renewal-alert p{margin:3px 0 0;color:#6d654f;font-size:13px}.billing-overview{grid-template-columns:repeat(4,minmax(0,1fr))}.billing-overview .stat small,.billing-metric-grid .stat small{display:block;margin-top:7px;color:#71807b;font-size:12px}.billing-metric-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.plan-card{padding:18px;border:1px solid #d6e3df;border-radius:13px;background:#fbfdfc}.plan-card-headline{display:flex;align-items:center;justify-content:space-between;gap:12px;color:#52635d;font-weight:600}.plan-card-headline b{padding:4px 8px;border-radius:999px;background:#fff0d1;color:#a86408;font-size:11px}.plan-card>del{display:block;margin-top:12px;color:#929d99;font-size:13px}.plan-card>strong{display:block;margin-top:10px;color:#176b5b;font-size:26px}.plan-card>strong small{font-size:13px}.plan-card ul{display:grid;gap:7px;margin:14px 0 0;padding:0;list-style:none;color:#65746f;font-size:13px}.plan-card li:before{content:"✓";margin-right:7px;color:#238c75;font-weight:700}.trial-note{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:18px;padding:14px 16px;border:1px solid #b9d9cf;border-radius:11px;background:#eef8f5;color:#536963;font-size:13px}.trial-note strong{color:#176b5b}.trial-hint{margin:14px 0 0;padding:10px 12px;border-radius:9px;background:#eef8f5;color:#28715f;font-size:13px}.bulk-feedback{margin:12px 0 0}.button.disabled{cursor:not-allowed;opacity:.58;pointer-events:none}.payment-notice{display:grid;gap:5px;margin-top:18px;padding:14px 16px;border-radius:11px;background:#f4f7f6;color:#65746f;font-size:13px}.payment-notice strong{color:#34443e}.compact-actions{margin:0}.link-button{border:0;padding:4px;background:transparent}.invoice-form{margin-top:20px;padding:18px;border:1px solid #dbe5e1;border-radius:12px;background:#fafcfb}.invoice-form h3{margin-top:0}.record-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:22px}.record-grid>div{padding:16px;border-radius:12px;background:#f7faf9}.record-grid h3{margin-top:0}.record-line{display:flex;justify-content:space-between;gap:14px;margin:8px 0;font-size:13px}.action-field{align-self:end}.admin-action-row{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:13px 0;border-bottom:1px solid #e5ece9}.admin-action-row:last-child{border-bottom:0}.admin-action-row p{margin:4px 0 0;color:#71807b;font-size:13px}.table-sub{display:block;margin-top:3px;color:#7b8883}.segmented{display:grid;grid-template-columns:1fr 1fr;background:#edf3f0;padding:4px;border-radius:10px;margin-bottom:24px}.segmented button{border:0;background:transparent;padding:10px;border-radius:8px}.segmented button.active{background:#fff;box-shadow:0 2px 8px #0000000f;color:#176b5b;font-weight:600}.workspace-tabs{display:flex;gap:7px;width:fit-content;max-width:100%;margin:-8px 0 18px;padding:4px;overflow-x:auto;border-radius:11px;background:#e6eeeb}.workspace-tabs button{display:flex;align-items:center;gap:7px;min-width:max-content;border:0;border-radius:8px;padding:9px 15px;background:transparent;color:#596963;font-weight:600}.workspace-tabs button span{min-width:21px;padding:2px 6px;border-radius:99px;background:#10483c14;font-size:11px}.workspace-tabs button.active{background:#fff;color:#155d4f;box-shadow:0 2px 8px #163f3612}.role-selector{display:grid;grid-template-columns:1fr 1fr;gap:10px}.role-choice{display:grid;gap:4px;text-align:left;padding:13px 14px;border:1px solid #cfddd8;border-radius:11px;background:#fff;color:#263a34}.role-choice small{color:#71807b;font-size:12px}.role-choice.active{border-color:#176b5b;background:#edf7f3;box-shadow:0 0 0 3px #176b5b1f;color:#155d4f}.class-create-form{display:grid;gap:18px}.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.plan-choice{display:grid;gap:5px;text-align:left;padding:14px;border:1px solid #cfddd8;border-radius:11px;background:#fff;color:#263a34}.plan-choice span{color:#65746f;font-size:13px}.plan-choice.active{border-color:#176b5b;background:#edf7f3;box-shadow:0 0 0 3px #176b5b1a;color:#155d4f}.billing-switch{width:min(430px,100%);margin:0}.price-summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 18px;border-radius:12px;background:#f1f7f4}.price-summary span{display:block;color:#65746f;font-size:13px}.price-summary strong{display:block;margin-top:3px;color:#176b5b;font-size:26px}.price-summary strong small{font-size:13px}.price-summary p{margin:0;color:#52635d;text-align:right}.desktop-save-status{margin:8px 0}.question-card{margin-bottom:16px;scroll-margin-top:24px}.question-meta-row{margin:0 0 12px}.assignment-take-layout{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:22px;align-items:start}.assignment-question-list{min-width:0}.assignment-overview{position:sticky;top:24px;border:1px solid #dbe6e2;border-radius:14px;background:#fff;padding:18px}.overview-toggle{display:none}.assignment-overview .section-head{align-items:flex-start;margin-bottom:15px}.assignment-overview .section-head h2{margin-bottom:4px}.take-page{min-height:100vh;background:#fff;color:#202926;padding-bottom:94px}.take-header{height:78px;position:sticky;top:0;z-index:12;display:grid;grid-template-columns:90px minmax(0,1fr) auto;align-items:center;gap:18px;padding:0 clamp(20px,4vw,56px);background:#fffffff5;border-bottom:1px solid #e6ece9;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.take-back{width:42px;height:42px;display:grid;place-items:center;color:#27332f;text-decoration:none;font-size:38px;line-height:1;border-radius:50%}.take-back:hover{background:#f0f5f3}.take-title{min-width:0;text-align:center}.take-title strong,.take-title small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.take-title strong{font-size:17px}.take-title small{margin-top:4px;color:#79847f;font-size:12px}.take-tools{display:flex;align-items:center;justify-content:flex-end;gap:14px}.take-count{color:#7d8884;white-space:nowrap}.take-count b{color:#1686b4;font-size:19px}.take-overview-button{display:flex;align-items:center;gap:6px;border:0;background:transparent;color:#30403a;padding:9px 5px}.take-overview-button span{font-size:21px}.take-progress{height:3px;background:#edf1ef;position:sticky;top:78px;z-index:12}.take-progress span{display:block;height:100%;background:#238c75;transition:width .25s ease}.take-content{width:min(880px,calc(100% - 40px));margin:0 auto;padding:28px 0 42px}.take-status{min-height:24px;display:flex;justify-content:space-between;gap:18px;color:#8a9490;font-size:12px}.take-status .offline{color:#b94c3d}.take-message{margin:8px 0 18px}.take-question{padding:clamp(18px,4vw,42px) 0}.take-question-meta{display:flex;align-items:center;gap:12px;color:#78837f;font-size:13px}.take-question-meta span:first-child{color:#176b5b;font-weight:700}.take-question-meta span:last-child.wrong{color:#a33e34}.take-question h1{margin:22px 0 34px;font-size:clamp(25px,3.1vw,36px);line-height:1.55;letter-spacing:.01em}.take-options{display:grid;gap:17px;max-width:720px}.take-option{position:relative;display:grid;grid-template-columns:48px minmax(0,1fr);align-items:center;gap:16px;min-height:58px;padding:5px 14px 5px 4px;border:1px solid transparent;border-radius:14px;font-size:20px;cursor:pointer}.take-option:hover{background:#f8faf9;border-color:#e2e9e6}.take-option input{position:absolute;opacity:0;pointer-events:none}.take-option b{width:44px;height:44px;display:grid;place-items:center;border:1px solid #dde4e1;border-radius:50%;background:#fff;color:#45514d;font-size:20px;font-weight:500;box-shadow:0 3px 12px #12302814}.take-option input:checked+b{border-color:#176b5b;background:#176b5b;color:#fff;box-shadow:0 0 0 4px #176b5b1c}.take-option:has(input:disabled){cursor:default}.take-option:has(input:disabled):hover{background:transparent;border-color:transparent}.take-short-answer{display:grid;gap:14px}.take-short-answer textarea{min-height:210px;font-size:17px;line-height:1.7}.paper-answer-upload{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:12px;padding:16px;border:1px dashed #a9c7be;border-radius:12px;background:#f6fbf9}.paper-answer-upload.uploaded{border-style:solid;border-color:#75b4a3;background:#edf8f4}.paper-answer-upload strong{color:#285d50}.paper-answer-upload p{margin:5px 0 0;color:#71807b;font-size:12px}.paper-answer-upload .actions{margin:0;flex-shrink:0}.danger-text{color:#b64a3e}.take-hints{display:flex;flex-wrap:wrap;gap:9px}.take-hints button{border:1px solid #d9e3df;border-radius:99px;background:#f7faf9;padding:8px 13px;color:#4d5c56}.take-submit-question{margin-top:28px;min-width:190px}.take-footer{position:fixed;inset:auto 0 0;z-index:11;min-height:74px;display:grid;grid-template-columns:minmax(110px,170px) 90px minmax(110px,170px);justify-content:center;align-items:center;gap:18px;padding:10px 20px;background:#fffffff7;border-top:1px solid #e4ebe8;box-shadow:0 -8px 30px #18372e0d;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.take-footer>span{color:#73807b;text-align:center;font-size:13px}.take-drawer-mask{position:fixed;inset:0;z-index:29;border:0;background:#0a1b1657}.take-drawer{position:fixed;inset:0 0 0 auto;z-index:30;width:min(390px,90vw);padding:28px 24px;background:#fff;box-shadow:-18px 0 50px #0c251d29;transform:translate(105%);transition:transform .2s ease;overflow:auto}.take-drawer.open{transform:translate(0)}.take-drawer-head{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:25px}.take-drawer-head h2{margin:0 0 5px;font-size:22px}.take-drawer-head p{margin:0;color:#74807c;font-size:13px}.take-drawer-head button{width:38px;height:38px;border:0;border-radius:50%;background:#f0f4f2;color:#53615c;font-size:24px}.take-drawer-summary{display:flex;justify-content:space-between;gap:12px;margin-bottom:17px;color:#65736e;font-size:13px}.take-drawer-summary strong{color:#176b5b}.overview-continue{width:100%;margin-bottom:14px}.overview-question-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.overview-question-grid button{min-width:0;border:1px solid #d6e1dd;border-radius:10px;padding:8px 3px 7px;background:#f7faf9;color:#67756f}.overview-question-grid button strong,.overview-question-grid button small{display:block}.overview-question-grid button strong{font-size:16px}.overview-question-grid button small{margin-top:2px;font-size:10px}.overview-question-grid button.answered{border-color:#87b9aa;background:#e9f4f0;color:#176b5b}.overview-question-grid button.final{background:#dcefe8}.overview-question-grid button.wrong{border-color:#dfaaa3;background:#fcebea;color:#9d3f35}.overview-question-grid button.current{box-shadow:0 0 0 3px #176b5b29;border-color:#176b5b}.overview-question-grid button:hover{border-color:#176b5b;transform:translateY(-1px)}.overview-legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:15px;color:#71807b;font-size:11px}.overview-legend span{display:inline-flex;align-items:center;gap:5px}.overview-legend i{width:9px;height:9px;border:1px solid #d6e1dd;border-radius:3px;background:#f7faf9}.overview-legend i.answered{border-color:#87b9aa;background:#e9f4f0}.overview-legend i.final{border-color:#87b9aa;background:#dcefe8}.take-loading{min-height:100vh;display:grid;place-items:center;padding:24px;color:#697771}.options{display:grid;gap:10px;margin:16px 0}.option{display:flex;gap:10px;align-items:center;padding:12px;border:1px solid #dbe5e1;border-radius:10px}.option input{width:auto}.answer-result{padding:14px;border-left:4px solid #176b5b;background:#edf6f2;margin-top:14px}.answer-summary{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:18px}.difficulty-mark{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}.difficulty-mark small{color:#65746f}.difficulty-mark b,.difficulty-stars{color:#e29a19;letter-spacing:.08em;font-weight:700}.error-rate{justify-self:end;color:#65746f;white-space:nowrap}.error-rate strong{color:#a0462f}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.progress{height:8px;overflow:hidden;border-radius:99px;background:#dfe9e5;margin-bottom:18px}.progress span{display:block;height:100%;background:#1b7d68;transition:width .2s ease}@media(max-width:820px){.mobile-header{display:flex;position:sticky;top:0;height:62px;align-items:center;justify-content:space-between;padding:0 16px;background:#fff;border-bottom:1px solid #dce7e2;z-index:15}.icon-button{border:0;background:transparent;font-size:22px;padding:10px}.brand-mini{font-weight:700;color:#176b5b}.sidebar{transform:translate(-105%);transition:transform .2s ease;width:min(290px,84vw)}.sidebar.open{transform:translate(0)}.menu-mask{position:fixed;inset:0;border:0;background:#081e1a73;z-index:18;width:100%}.main-content{margin-left:0;padding:24px 16px 54px}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.page-head{align-items:center}.list-row{align-items:flex-start}.auth-page{grid-template-columns:1fr}.auth-hero{min-height:250px;padding:38px 24px}.auth-hero h1{font-size:34px}.auth-panel{padding:34px 22px 50px}.overview-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.dashboard-head{align-items:flex-start}.dashboard-actions{justify-content:flex-start}.setup-card{align-items:flex-start;flex-direction:column}.compact-setup{align-items:center;flex-direction:row;overflow-x:auto}.dashboard-columns{grid-template-columns:1fr}.admin-stat-grid,.billing-overview,.billing-metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.record-grid{grid-template-columns:1fr}.renewal-alert,.admin-action-row{align-items:flex-start;flex-direction:column}.admin-monitor-grid,.filter-bar,.remediation-form,.batch-answer-row,.answer-compare{grid-template-columns:1fr}.answer-summary{grid-template-columns:1fr auto;gap:9px 12px}.answer-summary>strong{grid-column:1/-1}.paper-answer-upload{align-items:flex-start;flex-direction:column}.plan-grid{grid-template-columns:1fr}.paper-create-fields{grid-template-columns:1fr 1fr}.paper-title-field{grid-column:1/-1}.paper-card-head{align-items:flex-start;flex-direction:column}.sticky-grade-bar{bottom:8px}.assignment-take-layout{grid-template-columns:1fr;gap:14px}.assignment-overview{order:-1;position:sticky;top:72px;z-index:8;padding:0;overflow:hidden;box-shadow:0 8px 24px #103f3614}.overview-toggle{width:100%;border:0;background:#fff;color:#176b5b;padding:14px 16px;display:flex;align-items:center;justify-content:space-between;font-weight:700}.overview-toggle small{color:#66756f;font-weight:500}.assignment-overview-body{display:none;padding:4px 16px 16px;max-height:54vh;overflow:auto}.assignment-overview.open .assignment-overview-body{display:block}.take-page{padding-bottom:82px}.take-header{height:68px;grid-template-columns:44px minmax(0,1fr) auto;gap:9px;padding:0 14px}.take-back{width:38px;height:38px;font-size:34px}.take-title{text-align:left}.take-title strong{font-size:15px}.take-title small{font-size:10px}.take-tools{gap:9px}.take-count b{font-size:17px}.take-overview-button{gap:4px;font-size:12px}.take-overview-button span{font-size:19px}.take-progress{top:68px}.take-content{width:calc(100% - 32px);padding:18px 0 30px}.take-question{padding:23px 0}.take-question h1{margin:17px 0 28px;font-size:clamp(23px,6.5vw,29px);line-height:1.55}.take-options{gap:13px}.take-option{grid-template-columns:46px minmax(0,1fr);gap:13px;min-height:55px;font-size:18px}.take-option b{width:42px;height:42px}.take-footer{min-height:70px;grid-template-columns:minmax(92px,150px) 54px minmax(92px,150px);gap:8px;padding:8px 14px}.take-drawer{width:100%;inset:12vh 0 0;border-radius:20px 20px 0 0;padding:22px 18px}.overview-question-grid{grid-template-columns:repeat(5,minmax(0,1fr))}}@media(max-width:480px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-auth-card{padding:28px 22px}.admin-stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.card,.panel{padding:18px;border-radius:13px}.list-row{display:grid}.list-row>.button{width:100%;text-align:center}.overview-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.priority-bar{grid-template-columns:1fr;gap:9px}.priority-heading{justify-content:space-between;padding:0 0 8px;border-right:0;border-bottom:1px solid #e1e9e6}.priority-items a{min-width:155px}.dashboard-actions .button{flex:1 1 130px;text-align:center}.capacity-title,.assignment-progress-main{align-items:flex-start;flex-direction:column}.sticky-grade-bar{align-items:stretch;flex-direction:column}.batch-grade-fields{grid-template-columns:85px 1fr}.sticky-grade-bar .button{width:100%}.price-summary{align-items:flex-start;flex-direction:column}.price-summary p{text-align:left}.paper-create-fields{grid-template-columns:1fr}.paper-title-field{grid-column:auto}.paper-create-footer{align-items:stretch;flex-direction:column}.paper-create-footer .button,.paper-card-head .row-actions,.paper-card-head .button{width:100%}.paper-question-main{align-items:flex-start}.take-status{gap:9px;font-size:11px}.take-footer .button{padding-inline:10px}}@media(max-width:800px){.mobile-header{display:flex;position:sticky;top:0;z-index:15;height:62px;background:#fff;border-bottom:1px solid #e0e8e5;align-items:center;justify-content:space-between;padding:0 16px}.icon-button{border:0;background:transparent;font-size:22px;padding:10px}.brand-mini{font-weight:700;color:#155c4f}.sidebar{transform:translate(-102%);transition:transform .2s ease}.sidebar.open{transform:translate(0)}.menu-mask{position:fixed;inset:0;border:0;background:#00000059;z-index:18}.main-content{margin-left:0;padding:24px 16px 48px}.auth-page{grid-template-columns:1fr}.auth-hero{display:none}.auth-panel{min-height:100vh}.auth-panel-brand{display:flex}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.page-head,.list-row{align-items:stretch;flex-direction:column}}
