:root{--blue:#0977e6;--blue-deep:#0755b2;--cyan:#21c7ea;--yellow:#ffe227;--ink:#10233f;--muted:#75839a;--paper:#f3f7fb;--line:#dce5ef;--white:#fff;--danger:#bd3d46;--shadow:0 16px 50px rgba(24,74,132,.11);font-family:"DM Sans","Noto Sans SC",system-ui,sans-serif;color:var(--ink);background:var(--paper)}
*{box-sizing:border-box}body{margin:0;min-width:320px;background:var(--paper)}[hidden]{display:none!important}button,input,textarea,select{font:inherit}button{cursor:pointer}input,textarea,select{width:100%;min-height:48px;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--ink);padding:0 14px;font-size:1rem;outline:none}textarea{padding:12px 14px;resize:vertical;line-height:1.55}select{appearance:auto}input:focus,textarea:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(9,119,230,.1)}button:disabled{cursor:wait;opacity:.6}
.button{min-height:50px;border:0;border-radius:15px;padding:0 18px;font-weight:700;font-size:.96rem}.button.primary{width:100%;background:linear-gradient(135deg,var(--blue),#0866cf);color:white;box-shadow:0 12px 24px rgba(9,119,230,.22)}.button.secondary{width:100%;background:#e7f1ff;color:var(--blue-deep)}.button.accent{background:var(--yellow);color:#103369;white-space:nowrap}.button.logout{width:100%;background:#fff1f1;color:var(--danger);margin-top:16px}
.auth-page{min-height:100svh;background:linear-gradient(155deg,#0796ec 0%,#0872dc 48%,#0755ad 100%);display:flex;flex-direction:column}.auth-hero{min-height:260px;padding:calc(24px + env(safe-area-inset-top)) 24px 26px;display:flex;align-items:center;justify-content:center;color:white}.auth-brand{display:flex;align-items:center;gap:20px}.auth-brand img{width:118px;height:118px;object-fit:cover;border-radius:30px;box-shadow:0 18px 45px rgba(2,42,99,.3);transform:rotate(-3deg)}.auth-brand span{font-size:.7rem;letter-spacing:.17em;font-weight:800;color:var(--yellow)}.auth-brand h1{font-size:2.35rem;line-height:1;margin:8px 0}.auth-intro,.auth-points{display:none}
.auth-sheet{flex:1;background:var(--white);border-radius:28px 28px 0 0;padding:22px 20px max(28px,env(safe-area-inset-bottom));box-shadow:0 -16px 45px rgba(3,42,95,.14)}.auth-sheet-brand{display:none}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;background:#edf3f9;border-radius:14px;padding:4px;margin-bottom:24px}.auth-tabs button{min-height:42px;border:0;border-radius:11px;background:transparent;color:var(--muted);font-weight:700}.auth-tabs button.active{background:white;color:var(--ink);box-shadow:0 3px 12px rgba(22,66,117,.1)}.auth-form{display:none;gap:15px}.auth-form.active{display:grid;animation:rise .24s ease}.auth-form header{margin-bottom:2px}.auth-form h2{font-size:1.55rem;margin:0 0 6px;letter-spacing:-.035em}.auth-form header p{margin:0;color:var(--muted);font-size:.86rem}.auth-form header .eyebrow{margin-bottom:7px;color:var(--blue);font-size:.68rem;font-weight:800;letter-spacing:.16em}.auth-form label,.stack-form label,dialog label,.feedback-form label{display:grid;gap:7px;font-size:.82rem;font-weight:700}.form-help{margin:-4px 0 0;color:var(--muted);font-size:.75rem;line-height:1.5}.form-error{min-height:18px;margin:0;color:var(--danger);font-size:.76rem;line-height:1.4}.auth-help{margin:-4px 0 0!important;text-align:center;color:#8b98aa!important;font-size:.74rem!important}
.app{min-height:100svh;padding-bottom:calc(82px + env(safe-area-inset-bottom))}.app-header{min-height:72px;padding:calc(10px + env(safe-area-inset-top)) 18px 10px;display:flex;align-items:center;justify-content:space-between;background:rgba(243,247,251,.9);backdrop-filter:blur(16px);position:sticky;top:0;z-index:5}.brand{display:flex;align-items:center;gap:9px;color:var(--ink);text-decoration:none}.brand img{width:38px;height:38px;object-fit:cover;border-radius:11px}.brand strong{font-size:1.05rem}.profile-chip{min-height:42px;border:1px solid var(--line);border-radius:99px;background:white;display:flex;align-items:center;gap:7px;padding:4px 10px 4px 4px;color:var(--ink);font-weight:700}.profile-chip>span:first-child{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:#dbeaff;color:var(--blue);font-size:.78rem}.profile-chip>span:last-child{max-width:90px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:.78rem}
.app-main{padding:10px 16px 30px;max-width:720px;margin:auto}.page{display:none}.page.active{display:block;animation:rise .25s ease}.welcome{padding:22px;border-radius:24px;background:linear-gradient(145deg,#087ce9,#0757b9);color:white;display:flex;justify-content:space-between;align-items:flex-end;gap:14px;box-shadow:0 18px 36px rgba(7,87,185,.2);overflow:hidden;position:relative}.welcome:after{content:"";position:absolute;width:160px;height:160px;border-radius:50%;right:-60px;top:-85px;background:rgba(255,226,39,.18)}.welcome p{margin:0;color:#d9edff;font-size:.82rem}.welcome>div>p:first-child{font-weight:700;color:var(--yellow);margin-bottom:6px}.welcome h1{margin:0 0 7px;font-size:1.65rem;letter-spacing:-.04em}.welcome .button{position:relative;z-index:1}
.section-card{margin-top:15px;background:white;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:var(--shadow)}.section-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.section-heading span,.dialog-head span{display:block;color:var(--blue);font-size:.66rem;font-weight:800;letter-spacing:.14em}.section-heading h2,.dialog-head h2{margin:4px 0 0;font-size:1.18rem;letter-spacing:-.025em}.icon-refresh{width:42px;height:42px;border:1px solid var(--line);border-radius:13px;background:#f6f9fc;color:var(--blue);font-size:1.2rem}.class-list{display:grid;gap:10px}.loading-card,.empty-card{padding:28px 18px;border-radius:16px;background:#f5f8fb;text-align:center;color:var(--muted);font-size:.86rem}.empty-card strong{display:block;color:var(--ink);font-size:1rem;margin-bottom:5px}.class-card{border:1px solid var(--line);border-radius:17px;padding:15px;background:white;display:grid;grid-template-columns:1fr auto;gap:8px 12px}.class-card h3{margin:0;font-size:.98rem}.class-card p{margin:4px 0 0;color:var(--muted);font-size:.76rem}.invite{grid-column:1/-1;background:#eff6ff;border-radius:12px;padding:10px 12px;display:flex;align-items:center;justify-content:space-between;gap:10px}.invite span{font-size:.72rem;color:var(--muted)}.invite code{font-size:1.05rem;color:var(--blue-deep);font-weight:900;letter-spacing:.15em}.copy-code{border:0;border-radius:9px;background:white;color:var(--blue);font-weight:700;padding:7px 9px}
.account-hero{padding:24px 8px 12px;display:flex;align-items:center;gap:16px}.large-avatar{width:64px;height:64px;border-radius:21px;display:grid;place-items:center;background:linear-gradient(135deg,var(--cyan),var(--blue));color:white;font-size:1.45rem;font-weight:800;box-shadow:0 12px 24px rgba(9,119,230,.2)}.account-hero p,.account-hero h1,.account-hero span{margin:0}.account-hero p{font-size:.72rem;color:var(--blue);font-weight:800}.account-hero h1{font-size:1.55rem;margin:3px 0}.account-hero span{font-size:.78rem;color:var(--muted)}.stack-form{display:grid;gap:13px}
.page-title-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;padding:14px 6px 4px}.page-title-row p,.page-title-row h1,.page-title-row span{margin:0}.page-title-row p{color:var(--blue);font-size:.7rem;font-weight:800;letter-spacing:.15em}.page-title-row h1{font-size:1.8rem;margin:4px 0}.page-title-row span{color:var(--muted);font-size:.82rem}.assignment-list{display:grid;gap:12px}.assignment-card{border:1px solid var(--line);border-radius:18px;padding:16px;background:#fff}.assignment-top,.assignment-footer,.submission-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.class-tag{display:inline-flex;border-radius:99px;background:#e8f3ff;color:var(--blue-deep);padding:6px 10px;font-size:.72rem;font-weight:800}.due,.due-line{color:var(--muted);font-size:.75rem}.assignment-card h3{font-size:1.08rem;margin:14px 0 7px}.assignment-copy{margin:0;color:#52647a;line-height:1.7;font-size:.86rem;white-space:pre-wrap}.due-line{margin:10px 0 0}.assignment-footer{border-top:1px solid #e8eef5;margin-top:14px;padding-top:12px;color:var(--muted);font-size:.76rem}.assignment-footer strong{color:var(--ink);font-size:1rem}.small-action{border:0;border-radius:10px;background:var(--blue);color:#fff;padding:9px 13px;font-size:.78rem;font-weight:800}.status{border-radius:99px;padding:6px 10px;font-size:.72rem;font-weight:800}.status.done{background:#e7f8ef;color:#13834b}.status.pending{background:#fff4d7;color:#946700}.due-status{display:inline-flex;margin-left:5px;border-radius:99px;padding:3px 7px;font-size:.66rem;font-weight:800}.due-status.open{background:#e7f8ef;color:#13834b}.due-status.overdue{background:#fff0f0;color:var(--danger)}.feedback-box{margin-top:13px;border-left:3px solid var(--yellow);background:#fff9df;border-radius:0 12px 12px 0;padding:11px 13px}.feedback-box strong{font-size:.75rem;color:#735700}.feedback-box p{margin:4px 0 0;font-size:.82rem;line-height:1.6;white-space:pre-wrap}.file-help{margin:-5px 0 0!important;color:var(--muted);font-size:.75rem}.submission-list{display:grid;gap:12px;margin-top:16px}.submission-card{border:1px solid var(--line);border-radius:17px;padding:16px}.submission-head strong,.submission-head span{display:block}.submission-head span{margin-top:4px;color:var(--muted);font-size:.72rem}.submission-head a{color:var(--blue);font-size:.8rem;font-weight:800}.student-note{background:#f3f7fb;border-radius:12px;padding:12px;margin:13px 0;font-size:.84rem;line-height:1.6;white-space:pre-wrap}.feedback-form{display:grid;gap:9px;margin-top:12px}.feedback-form .button{min-height:42px}.feedback-form .form-error{min-height:0}.bottom-nav{position:fixed;z-index:8;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(3,1fr);background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-top:1px solid var(--line);padding:7px 12px calc(7px + env(safe-area-inset-bottom))}.bottom-nav button{min-height:54px;border:0;border-radius:16px;background:transparent;color:var(--muted);font-size:.72rem;font-weight:700;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px}.bottom-nav button span{font-size:1.05rem}.bottom-nav button.active{color:var(--blue);background:#edf6ff}
.footer-actions,.submission-actions{display:flex;align-items:center;gap:8px}.review-action{background:#e7f1ff;color:var(--blue-deep)}.submission-actions a{white-space:nowrap}.annotate-button{border:0;border-radius:10px;background:#e7f1ff;color:var(--blue-deep);padding:8px 11px;font-size:.78rem;font-weight:800}.recorder-panel{border:1px solid #cfe1f5;border-radius:16px;background:#f3f8ff;padding:14px;display:grid;gap:11px}.recorder-panel strong,.recorder-panel span{display:block}.recorder-panel>div:first-child span{margin-top:3px;color:var(--muted);font-size:.73rem}.recorder-actions{display:flex;align-items:center;gap:10px}.record-button{border:0;border-radius:11px;background:#e34855;color:#fff;padding:10px 13px;font-weight:800}.record-button.stop{background:var(--ink)}.record-time{font-variant-numeric:tabular-nums;font-weight:800;color:var(--danger)}.recorder-panel audio{width:100%}.discard-recording{justify-self:start;border:0;background:transparent;color:var(--danger);font-size:.76rem;font-weight:800;padding:0}
.annotation-dialog{width:min(1000px,calc(100% - 28px))}.annotation-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:18px;margin-top:18px}.media-stage{min-height:260px;border-radius:18px;background:#132033;display:grid;place-items:center;overflow:hidden}.media-stage video,.media-stage audio{width:100%;max-height:65vh}.media-stage audio{padding:24px}.image-annotation{position:relative;width:100%;line-height:0}.image-annotation img{display:block;width:100%;max-height:65vh;object-fit:contain}.image-annotation canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;cursor:crosshair}.annotation-tools{border:1px solid var(--line);border-radius:16px;background:#f7f9fc;padding:15px;align-self:start}.annotation-tools>strong{font-size:.9rem}.tool-hint{color:var(--muted);font-size:.75rem;line-height:1.5}.color-row{display:flex;gap:10px;margin:14px 0}.color-dot{width:34px;height:34px;border:3px solid white;border-radius:50%;background:var(--dot);box-shadow:0 0 0 1px #cbd5e1}.color-dot.active{box-shadow:0 0 0 3px var(--blue)}.tool-button{width:100%;min-height:40px;margin-top:8px;border:0;border-radius:11px;background:#e6edf5;color:var(--ink);font-weight:800}.tool-button.danger{color:var(--danger);background:#fff0f0}.tool-button.primary-tool{background:var(--blue);color:white}.marker-list{display:grid;gap:8px;margin-top:14px}.marker-item{display:grid;grid-template-columns:auto 1fr auto;align-items:start;gap:8px;border-radius:11px;background:white;padding:9px}.marker-item button{border:0;border-radius:8px;background:#e8f3ff;color:var(--blue-deep);padding:5px 7px;font-weight:800}.marker-item span{font-size:.78rem;line-height:1.5}.marker-item .remove-marker{background:#fff0f0;color:var(--danger)}.no-markers{color:var(--muted);font-size:.76rem;text-align:center}.annotation-feedback{margin-top:16px}.annotation-feedback label{display:grid;gap:7px;font-size:.82rem;font-weight:700}
.image-annotation{width:auto;max-width:100%}.image-annotation img{width:auto;max-width:100%;object-fit:initial}
dialog{width:min(440px,calc(100% - 28px));max-height:calc(100svh - 28px);overflow:auto;border:0;border-radius:24px;padding:0;color:var(--ink);box-shadow:0 30px 90px rgba(10,43,81,.3)}dialog.wide-dialog{width:min(720px,calc(100% - 28px))}dialog.annotation-dialog{width:min(1000px,calc(100% - 28px))}dialog::backdrop{background:rgba(5,27,54,.6);backdrop-filter:blur(4px)}dialog form{padding:22px;display:grid;gap:14px}.dialog-body{padding:22px}.dialog-head{display:flex;align-items:center;justify-content:space-between}.dialog-head button{width:40px;height:40px;border:0;border-radius:13px;background:#edf2f7;font-size:1.3rem}.dialog-head+label{margin-top:4px}dialog form>p:not(.form-error){margin:-3px 0 0;color:var(--muted);font-size:.75rem;line-height:1.5}.toast{position:fixed;left:16px;right:16px;bottom:calc(84px + env(safe-area-inset-bottom));z-index:20;background:var(--ink);color:white;border-radius:14px;padding:13px 15px;text-align:center;font-size:.82rem;font-weight:700;opacity:0;transform:translateY(14px);pointer-events:none;transition:.22s}.toast.show{opacity:1;transform:translateY(0)}
.direct-media-preview{margin-top:14px;border-radius:16px;background:#0f1d30;overflow:hidden;display:grid;place-items:center;min-height:90px}.direct-media-preview img,.direct-media-preview video{display:block;width:100%;max-height:420px;object-fit:contain}.direct-media-preview audio{width:calc(100% - 28px);margin:20px 14px}.document-preview{margin-top:14px;border:1px solid #cfe1f5;border-radius:16px;background:#f3f8ff;padding:14px;display:grid;gap:4px}.document-preview strong{font-size:.84rem;overflow-wrap:anywhere}.document-preview span{color:var(--muted);font-size:.74rem;line-height:1.5}.document-frame{width:100%;height:100%;min-height:58vh;border:0;background:white}.document-open{max-width:460px;padding:28px;color:#eef5ff;text-align:center}.document-open strong{font-size:1rem}.document-open p{color:#c8d7e9;line-height:1.6;font-size:.82rem}.document-open .button{display:inline-grid;width:auto;text-decoration:none;place-items:center}.review-feedback{margin:12px 0;border-left:3px solid var(--yellow);border-radius:0 10px 10px 0;background:#fff9df;padding:10px}.review-feedback strong{display:block;color:#735700;font-size:.75rem}.review-feedback p{margin:4px 0 0;color:var(--ink);font-size:.8rem;line-height:1.6;white-space:pre-wrap}.document-marker{grid-template-columns:1fr auto}.document-marker b{grid-column:1/-1;color:var(--blue-deep);font-size:.73rem}.document-marker span{grid-column:1;grid-row:2}.document-marker .remove-marker{grid-column:2;grid-row:1/3;align-self:center}.audio-player{width:100%;display:grid;gap:7px;padding:14px}.audio-player audio{width:100%;margin:0}.audio-duration{justify-self:flex-end;color:#dceeff;font-size:.75rem;font-weight:700;font-variant-numeric:tabular-nums}.media-stage .audio-player{max-width:720px}.media-stage .audio-duration{color:#dceeff}.immersive-entry{width:100%;border:0;border-radius:0 0 14px 14px;background:linear-gradient(135deg,#0878e5,#0758b9);color:#fff;padding:13px 15px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:11px;text-align:left}.immersive-entry>span{width:34px;height:34px;border-radius:11px;background:rgba(255,255,255,.15);display:grid;place-items:center;color:var(--yellow)}.immersive-entry strong,.immersive-entry small{display:block}.immersive-entry small{margin-top:2px;color:#dceeff;font-size:.7rem}.immersive-entry>b{font-size:1.5rem}.saved-feedback{display:grid;gap:4px;margin-top:12px;border-radius:11px;background:#fff8dc;padding:10px 12px}.saved-feedback strong{font-size:.72rem;color:#725900}.saved-feedback span{font-size:.78rem;line-height:1.5}
dialog.annotation-dialog{position:fixed;inset:0;width:100vw;height:100svh;max-width:none;max-height:none;margin:0;border-radius:0;background:#eef3f8;overflow:hidden}.immersive-body{height:100%;padding:16px 20px;display:flex;flex-direction:column}.immersive-head{flex:none;padding-bottom:10px}.annotation-layout{flex:1;min-height:0;margin-top:0;grid-template-columns:minmax(0,1fr) 320px}.annotation-layout .media-stage{height:100%;min-height:0}.annotation-layout .image-annotation img{max-height:calc(100svh - 220px)}.annotation-tools{max-height:100%;overflow:auto}.immersive-footer{flex:none;margin-top:10px;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:10px}.immersive-footer .annotation-feedback{margin:0}.immersive-footer .form-error{grid-column:1/-1;min-height:0}.immersive-footer .button{width:auto;min-width:190px}.annotation-modes{display:grid;grid-template-columns:repeat(2,1fr);gap:7px;margin:12px 0}.annotation-modes button,.size-row button,.quick-comments button{border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);padding:8px 6px;font-size:.72rem;font-weight:800}.annotation-modes button.active,.size-row button.active{border-color:var(--blue);background:#e8f3ff;color:var(--blue-deep)}.tool-section{padding-top:11px;margin-top:10px;border-top:1px solid var(--line)}.tool-section>span,.playback-speed>span{font-size:.7rem;font-weight:800;color:var(--muted)}.size-row{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:8px}.text-annotation-input{margin-top:11px}.text-annotation-input input{min-height:40px;font-size:.78rem}.tool-actions{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:6px}.playback-speed{display:flex;align-items:center;justify-content:space-between;margin:12px 0}.playback-speed select{width:96px;min-height:36px;padding:0 8px;font-size:.78rem}.quick-comments{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}.quick-comments button{padding:7px 9px}.quick-comments button:active{background:#dcecff}.media-submission .feedback-form{margin-top:14px}
@keyframes rise{from{opacity:0;transform:translateY(7px)}}
@media(max-width:700px){dialog.annotation-dialog{overflow:auto}.immersive-body{height:auto;min-height:100svh;padding:10px}.immersive-head{position:sticky;top:0;z-index:3;margin:-10px -10px 8px;padding:10px;background:rgba(238,243,248,.94);backdrop-filter:blur(12px)}.immersive-head h2{max-width:260px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.annotation-layout{display:grid;grid-template-columns:1fr;flex:none;gap:10px}.annotation-layout .media-stage{min-height:42svh;height:auto;border-radius:14px}.annotation-layout .image-annotation img{max-height:55svh}.annotation-tools{width:100%;max-height:none;padding:12px}.annotation-modes{grid-template-columns:repeat(3,1fr)}.immersive-footer{position:sticky;bottom:0;z-index:3;margin:10px -10px -10px;padding:10px;background:rgba(238,243,248,.96);backdrop-filter:blur(12px);grid-template-columns:1fr auto}.immersive-footer textarea{min-height:48px;max-height:72px}.immersive-footer .button{min-width:0;width:auto;padding:0 13px}.direct-media-preview img,.direct-media-preview video{max-height:52svh}}
@media(max-width:390px){.auth-hero{min-height:220px;padding-top:calc(18px + env(safe-area-inset-top))}.auth-brand img{width:94px;height:94px}.auth-brand h1{font-size:2rem}.welcome,.page-title-row{align-items:flex-start;flex-direction:column}.welcome .button,.page-title-row .button{width:100%}.assignment-footer{align-items:flex-start;flex-direction:column}.assignment-footer .small-action{width:100%}.footer-actions{width:100%;flex-direction:column}.submission-head{align-items:flex-start}.submission-actions{flex-direction:column;align-items:flex-end}}
@media(min-width:760px){body{background:#eaf1f8}.auth-page{width:min(1180px,calc(100% - 64px));min-height:min(760px,calc(100svh - 64px));margin:32px auto;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(420px,.9fr);overflow:hidden;border-radius:34px;background:#fff;box-shadow:0 28px 90px rgba(25,63,108,.18)}.auth-hero{min-height:696px;display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between;padding:48px 56px;background:radial-gradient(circle at 88% 14%,rgba(255,226,39,.25),transparent 24%),linear-gradient(145deg,#0a8ceb 0%,#0764c9 54%,#064da5 100%);position:relative;overflow:hidden}.auth-hero:after{content:"E";position:absolute;right:-44px;bottom:-118px;color:rgba(255,255,255,.06);font-size:430px;line-height:1;font-weight:900}.auth-brand{gap:14px;position:relative;z-index:1}.auth-brand img{width:72px;height:72px;border-radius:20px;transform:none;box-shadow:0 12px 30px rgba(2,42,99,.25)}.auth-brand h1{font-size:1.8rem;margin:5px 0 0}.auth-intro{display:block;position:relative;z-index:1;max-width:510px;margin:auto 0}.auth-intro .auth-kicker{margin:0 0 14px;color:var(--yellow);font-size:.88rem;font-weight:800;letter-spacing:.06em}.auth-intro h2{margin:0;font-size:3.2rem;line-height:1.18;letter-spacing:-.045em}.auth-intro>p:last-child{max-width:450px;margin:22px 0 0;color:#d9ecff;font-size:1rem;line-height:1.8}.auth-points{display:flex;gap:10px;position:relative;z-index:1}.auth-points span{border:1px solid rgba(255,255,255,.24);border-radius:99px;background:rgba(255,255,255,.1);padding:9px 14px;color:#fff;font-size:.78rem;font-weight:700;backdrop-filter:blur(8px)}.auth-sheet{width:min(440px,calc(100% - 72px));align-self:center;justify-self:center;flex:none;border-radius:0;padding:0;box-shadow:none}.auth-sheet-brand{display:flex;align-items:center;gap:10px;margin-bottom:38px;color:var(--ink)}.auth-sheet-brand img{width:36px;height:36px;border-radius:10px}.auth-sheet-brand strong{font-size:1.05rem}.auth-tabs{margin-bottom:32px}.auth-tabs button{min-height:46px}.auth-form{gap:18px}.auth-form h2{font-size:2rem}.auth-form header p{font-size:.92rem}.auth-form label{font-size:.88rem}.auth-form input{min-height:52px}.auth-form .button{min-height:54px;margin-top:2px}.app-main{padding-top:24px}.welcome{padding:30px}.section-card{padding:24px}.bottom-nav{left:50%;right:auto;transform:translateX(-50%);bottom:18px;width:300px;border:1px solid var(--line);border-radius:22px;padding:6px;box-shadow:var(--shadow)}.toast{left:50%;right:auto;width:max-content;max-width:420px;transform:translate(-50%,14px)}.toast.show{transform:translate(-50%,0)}}
@media(min-width:760px) and (max-height:780px){.auth-page{margin:20px auto;min-height:calc(100svh - 40px)}.auth-hero{min-height:640px;padding:38px 48px}.auth-intro h2{font-size:2.75rem}.auth-sheet-brand{margin-bottom:24px}.auth-tabs{margin-bottom:22px}.auth-form{gap:13px}}
@media(min-width:900px){.app-main{max-width:1080px}.class-list,.assignment-list{grid-template-columns:repeat(2,minmax(0,1fr))}.loading-card,.empty-card{grid-column:1/-1}.account-hero{max-width:720px;margin:auto}.account-hero+.section-card,.account-hero~.logout{max-width:720px;margin-left:auto;margin-right:auto}.page-title-row{padding-top:24px}.homework-section{padding:26px}.assignment-card{padding:20px}}