@font-face{font-family:DM Sans;font-style:normal;font-weight:100 1000;font-display:swap;src:url(../media/c3cb240f9c892514-s.d8e4bce2.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:DM Sans;font-style:normal;font-weight:100 1000;font-display:swap;src:url(../media/5c285b27cdda1fe8-s.p.a62025f2.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:DM Sans Fallback;src:local(Arial);ascent-override:94.9%;descent-override:29.66%;line-gap-override:0.0%;size-adjust:104.53%}.dm_sans_6eae885b-module__aWWHrW__className{font-family:DM Sans,DM Sans Fallback;font-style:normal}.dm_sans_6eae885b-module__aWWHrW__variable{--font-geist-sans:"DM Sans","DM Sans Fallback"}
@font-face{font-family:Space Mono;font-style:normal;font-weight:400;font-display:swap;src:url(../media/4ba802ed8e67eac5-s.e45fea2b.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Space Mono;font-style:normal;font-weight:400;font-display:swap;src:url(../media/d7a0600e467cf0bd-s.20ecb425.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Space Mono;font-style:normal;font-weight:400;font-display:swap;src:url(../media/dc0d9adbac686440-s.p.3b382e45.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Space Mono;font-style:normal;font-weight:700;font-display:swap;src:url(../media/b8f2b92a9960dd69-s.12167c5a.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Space Mono;font-style:normal;font-weight:700;font-display:swap;src:url(../media/28e60ca39c9ae554-s.7a4e9fcc.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Space Mono;font-style:normal;font-weight:700;font-display:swap;src:url(../media/8d05cfa5faa8406c-s.p.4adea45d.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Space Mono Fallback;src:local(Arial);ascent-override:81.58%;descent-override:26.3%;line-gap-override:0.0%;size-adjust:137.28%}.space_mono_73fb30a3-module__oLIXzW__className{font-family:Space Mono,Space Mono Fallback;font-style:normal}.space_mono_73fb30a3-module__oLIXzW__variable{--font-geist-mono:"Space Mono","Space Mono Fallback"}
@layer theme{:root,:host{--radius-sm:.25rem;--radius-md:.375rem;--radius-lg:.5rem;--default-font-family:var(--font-geist-sans);--default-mono-font-family:var(--font-geist-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.grid{display:grid}.inline{display:inline}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}}:root{--background:#eef3f9;--surface:#fff;--surface-soft:#f7faff;--surface-muted:#f2f5fb;--text:#0f172a;--muted:#475569;--line:#d8e2ee;--line-strong:#c2d1e4;--primary:#2563eb;--primary-strong:#1d4ed8;--primary-soft:#dbeafe;--primary-soft-border:#bfdbfe;--danger:#dc2626;--success:#15803d;--status-warning-bg:#fffbeb;--status-warning-border:#fcd34d;--status-warning-text:#92400e;--status-success-bg:#ecfdf3;--status-success-border:#86efac;--status-success-text:#166534;--status-neutral-bg:#f1f5f9;--status-neutral-border:#cbd5e1;--status-neutral-text:#334155;--radius-lg:18px;--radius-md:14px;--radius-sm:10px;--shadow-1:0 10px 26px #0f172a12;--shadow-2:0 20px 48px #0f172a1a}*{box-sizing:border-box}html,body{min-height:100%}body{background:var(--background);color:var(--text);font-family:var(--font-geist-sans),"Segoe UI",sans-serif;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;background-image:radial-gradient(circle at 0 -8%,#2563eb29 0%,#0000 36%),radial-gradient(circle at 100% -6%,#16a34a1f 0%,#0000 30%);background-attachment:fixed;margin:0;line-height:1.45;overflow-x:hidden}a{color:inherit}h1,h2,h3{letter-spacing:-.02em;margin:0}.page-wrap{width:min(1120px,100% - 2.2rem);padding-top:max(1.1rem,env(safe-area-inset-top));padding-bottom:max(2rem,env(safe-area-inset-bottom));margin:0 auto;animation:.3s both fade-up}.brand-bar{justify-content:space-between;align-items:center;gap:.8rem;margin-bottom:.8rem;display:flex}.brand-link{color:#0b1220;align-items:center;gap:.58rem;text-decoration:none;display:inline-flex}.brand-mark{background:linear-gradient(#eff6ff 0%,#dbeafe 100%);border:1px solid #bfdbfe;border-radius:11px;justify-content:center;align-items:center;width:34px;min-width:34px;height:34px;min-height:34px;display:inline-flex;overflow:hidden;box-shadow:inset 0 1px #fff9}.brand-mark *{max-width:100%;max-height:100%}.brand-mark-text{letter-spacing:.05em;color:#1d4ed8;font-size:.72rem;font-weight:800;line-height:1}.brand-text{letter-spacing:-.02em;font-weight:760}.brand-context{letter-spacing:.08em;text-transform:uppercase;color:#64748b;font-size:.78rem}.page-intent{margin:0 0 .85rem}.hero{border:1px solid var(--line);box-shadow:var(--shadow-2);background:linear-gradient(#fff 0%,#f8fbff 100%);border-radius:22px;padding:1.75rem;position:relative;overflow:hidden}.hero:before{content:"";pointer-events:none;background:linear-gradient(120deg,#2563eb0b,#10b98108);position:absolute;inset:0}.hero>*{position:relative}.hero h1{margin:.34rem 0 .62rem;font-size:clamp(1.95rem,4vw,3rem);line-height:1.04}.hero p{max-width:70ch;color:var(--muted);margin:0}.home-hero{padding:1.9rem}.hero-split{grid-template-columns:1.5fr 1fr;align-items:stretch;gap:1rem;display:grid}.hero-copy{align-content:start;gap:.7rem;display:grid}.hero-preview{border-radius:var(--radius-md);gap:.8rem;padding:1rem;display:grid}.hero-preview h3{font-size:1rem}.preview-kpis{grid-template-columns:repeat(2,minmax(0,1fr));gap:.52rem;display:grid}.preview-kpi{border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;padding:.66rem .68rem}.preview-kpi span{color:#64748b;text-transform:uppercase;letter-spacing:.05em;font-size:.73rem;display:block}.preview-kpi strong{margin-top:.2rem;font-size:.94rem;display:block}.preview-list{gap:.52rem;display:grid}.preview-row{border:1px solid var(--line);color:#334155;background:#fff;border-radius:9px;align-items:center;gap:.45rem;padding:.48rem .6rem;font-size:.88rem;display:inline-flex}.preview-row.done{background:#f0fdf4;border-color:#86efac}.preview-row.warn{background:#fffbeb;border-color:#fcd34d}.status-dot{background:#94a3b8;border-radius:999px;width:8px;height:8px}.preview-row.done .status-dot{background:#16a34a}.preview-row.warn .status-dot{background:#d97706}.section-gap{margin-top:1rem}.home-feature{background:linear-gradient(#fff 0%,#f9fbff 100%)}.home-feature h2{margin-bottom:.38rem;font-size:1.02rem}.grid{gap:.9rem;display:grid}.grid.cols-2{grid-template-columns:repeat(auto-fit,minmax(270px,1fr))}.grid.cols-3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.card{border-radius:var(--radius-lg);border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-1);padding:1rem}.panel-subtle{background:var(--surface-soft);border-color:#dbe7f4}.actions{flex-wrap:wrap;gap:.64rem;display:flex}.hero-actions{margin-top:.25rem}.btn{border-radius:var(--radius-sm);color:#0f172a;min-height:42px;font:inherit;letter-spacing:.01em;cursor:pointer;background:#fff;border:1px solid #0000;justify-content:center;align-items:center;gap:.34rem;padding:.66rem 1rem;font-weight:650;text-decoration:none;transition:all .16s;display:inline-flex}.btn:hover{transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn:disabled{opacity:.58;cursor:not-allowed;transform:none}.btn-primary{color:#fff;background:linear-gradient(180deg,#3474f3 0%,var(--primary)100%);border-color:#0f172a0f;box-shadow:0 9px 18px #2563eb3d}.btn-primary:hover{background:linear-gradient(180deg,#2967e3 0%,var(--primary-strong)100%)}.btn-ghost{border-color:var(--line-strong);color:#1e293b;background:#fff}.btn-ghost:hover{background:#f8fbff;border-color:#9db1ca}.btn-danger{color:#fff;background:linear-gradient(180deg,#ef4444 0%,var(--danger)100%);border-color:#0f172a14}.text-link{color:#1d4ed8;align-items:center;min-height:42px;padding:.2rem .1rem;font-weight:620;text-decoration:none;display:inline-flex}.text-link:hover{text-underline-offset:2px;text-decoration:underline}.label{margin-bottom:.38rem;font-size:.94rem;font-weight:680;display:block}.input,.textarea{border-radius:var(--radius-sm);border:1px solid var(--line);width:100%;min-height:42px;color:var(--text);font:inherit;appearance:none;background:#fff;padding:.66rem .84rem;transition:border-color .16s,box-shadow .16s,background-color .16s}.textarea{resize:vertical;min-height:108px}.input:hover,.textarea:hover{border-color:#b7c8de}.input:focus,.textarea:focus{border-color:#3b82f6;outline:none;box-shadow:0 0 0 3px #3b82f633}.meta{color:var(--muted);margin:0;font-size:.9rem;line-height:1.45}.empty{color:var(--muted);margin:0}.field-meta{margin-top:.34rem;font-size:.82rem}.surface-title{margin-bottom:.54rem}.title-row{align-items:center;gap:.46rem;display:inline-flex}.mini-icon{color:#1d4ed8;background:#dbeafe;border-radius:7px;justify-content:center;align-items:center;width:21px;height:21px;display:inline-flex}.mini-icon svg{width:13px;height:13px}.pill,.status-badge{border:1px solid var(--primary-soft-border);background:var(--primary-soft);color:#1e40af;letter-spacing:.02em;white-space:nowrap;border-radius:999px;justify-content:center;align-items:center;padding:.25rem .66rem;font-size:.78rem;font-weight:700;display:inline-flex}.status-badge{text-transform:uppercase;letter-spacing:.045em;font-size:.76rem}.pill-subtle{color:#475569;background:#f8fbff;border-color:#d4dfec;font-weight:650}.status-warning,.pill-warning{border-color:var(--status-warning-border);background:var(--status-warning-bg);color:var(--status-warning-text)}.status-success,.pill-success{border-color:var(--status-success-border);background:var(--status-success-bg);color:var(--status-success-text)}.status-neutral,.pill-neutral{border-color:var(--status-neutral-border);background:var(--status-neutral-bg);color:var(--status-neutral-text)}.status-danger{color:#b91c1c;font-weight:630}.status-ok{color:#166534;font-weight:630}.notice{border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--surface-soft);margin:.6rem 0 0;padding:.58rem .72rem;font-size:.9rem}.notice.success{border-color:var(--status-success-border);background:var(--status-success-bg);color:var(--status-success-text)}.notice.danger{color:#991b1b;background:#fef2f2;border-color:#fecaca}.notice.info{border-color:var(--primary-soft-border);background:var(--primary-soft);color:#1e3a8a}.workspace-header,.topbar{top:calc(env(safe-area-inset-top) + .35rem);z-index:6;border-radius:var(--radius-md);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#f1f6fded;border:1px solid #c6d5e8;margin-bottom:.9rem;padding:.42rem;position:sticky}.kpi-card{background:linear-gradient(#fff 0%,#f9fbff 100%)}.kpi-card .stat-label{text-transform:uppercase;letter-spacing:.06em;align-items:center;gap:.36rem;margin:0;font-size:.81rem;display:inline-flex}.stat-value{margin:.22rem 0 .2rem;font-size:clamp(1.58rem,2.6vw,2.05rem);font-weight:760;line-height:1}.kpi-note{align-items:center;gap:.32rem;font-size:.82rem;display:inline-flex}.kpi-warning{background:linear-gradient(#fff 0%,#fffbef 100%);border-color:#f8d688}.kpi-success{background:linear-gradient(#fff 0%,#effcf3 100%);border-color:#b6ebc9}.class-list{gap:.7rem}.class-link{text-decoration:none;transition:border-color .18s,box-shadow .18s,transform .18s}.class-link:hover{border-color:#a9bdd6;box-shadow:0 14px 32px #0f172a1a}.class-link-warning{border-left:4px solid #f59e0b}.class-link-success{border-left:4px solid #22c55e}.class-link-row{justify-content:space-between;align-items:flex-start;gap:.9rem;display:flex}.class-link-row h3{margin:0 0 .2rem;font-size:1.1rem}.class-link-meta{margin:0}.class-link-pills{flex-wrap:wrap;gap:.45rem;margin-top:.66rem;display:flex}.toolbar-compact{grid-template-columns:minmax(180px,310px) auto auto auto;align-items:end;gap:.62rem;margin-bottom:.72rem;display:grid}.toolbar-label{margin-bottom:.16rem}.toolbar-input{min-width:0}.assignment-stack{gap:.7rem}.workspace-split{grid-template-columns:minmax(250px,320px) minmax(0,1fr);align-items:start;gap:.82rem;display:grid}.assignment-nav{top:calc(env(safe-area-inset-top) + 5.2rem);padding:.88rem;position:sticky}.assignment-list{gap:.48rem;margin-top:.68rem;display:grid}.assignment-nav-item{text-align:left;cursor:pointer;background:#fff;border:1px solid #d3deec;border-left:3px solid #0000;border-radius:12px;gap:.45rem;width:100%;padding:.62rem .64rem;transition:border-color .16s,box-shadow .16s,background-color .16s;display:grid}.assignment-nav-item:hover{background:#f8fbff;border-color:#a9bfdb}.assignment-nav-item.is-selected{background:#eff6ff;border-color:#c4d8ef #c4d8ef #c4d8ef #2563eb;box-shadow:inset 0 0 0 1px #dbeafe}.assignment-header-actions{align-items:center;gap:.38rem;display:inline-flex}.assignment-nav-head{justify-content:space-between;align-items:flex-start;gap:.42rem;display:flex}.assignment-nav-title{color:#0f172a;margin:0;font-size:.96rem;font-weight:700}.assignment-nav-counts{flex-wrap:wrap;gap:.34rem;display:flex}.assignment-main{border-color:#d5e0ed;padding:.92rem;box-shadow:0 8px 20px #0f172a0d}.assignment-main-header{margin-bottom:.1rem}.assignment-instructions{background:#f8fbff;border:1px solid #d8e3ef;border-radius:11px;margin:.08rem 0 .7rem;padding:.58rem .7rem}.assignment-submissions{margin-top:.14rem}.assignment-card{padding:.88rem}.dense-row{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:.72rem;display:flex}.assignment-title{margin-bottom:.18rem;font-size:1.08rem}.assignment-description{margin-top:0}.assignment-meta{margin-top:.15rem;font-size:.83rem}.assignment-actions{margin-top:.52rem;margin-bottom:.58rem}.assignment-empty{margin-top:.35rem}.submission-grid{gap:.56rem}.submission-card{box-shadow:none;background:#fcfdff;border-color:#d9e2ee;padding:.78rem}.submission-name-row{align-items:center;gap:.4rem;display:inline-flex}.score-control{justify-items:end;gap:.24rem;display:grid}.score-label{text-transform:uppercase;letter-spacing:.05em;font-size:.76rem}.score-field{background:#f8fbff;border:1px solid #bfd1e6;border-radius:11px;align-items:center;gap:.42rem;padding:.22rem .36rem;display:inline-flex}.score-input{text-align:right;border:1px solid #d2ddec;width:72px;min-height:36px;padding:.42rem .5rem;font-size:1.06rem;font-weight:700}.score-suffix{color:#64748b;font-size:.84rem;font-weight:650}.feedback-label{margin:.54rem 0 .32rem}.feedback-area{border-color:#d5dfed;min-height:70px;padding:.58rem .72rem}.submission-actions{margin-top:.52rem}.inline-edit-row{align-items:center;gap:.3rem;max-width:100%;display:inline-flex}.inline-edit-input{max-width:260px;min-height:36px}.icon-btn{color:#334155;cursor:pointer;background:#fff;border:1px solid #c8d6e8;border-radius:9px;justify-content:center;align-items:center;min-width:32px;min-height:32px;padding:.2rem;display:inline-flex}.icon-btn:hover{background:#f8fbff;border-color:#9db1ca}.icon-btn-danger{color:#b91c1c;background:#fff5f5;border-color:#fca5a5}.icon-btn-danger:hover{background:#fee2e2;border-color:#f87171}.icon-btn-confirm{color:#166534;background:#f0fdf4;border-color:#86efac}.class-title-wrap{min-width:0}.class-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:.56rem;display:inline-flex}.card-inline-error{color:#b91c1c;margin:.58rem 0 0;font-size:.86rem}.modal-backdrop{z-index:20;background:#0f172a59;justify-content:center;align-items:center;padding:1rem;display:flex;position:fixed;inset:0}.modal-card{background:#fff;border:1px solid #d4e0ee;border-radius:14px;width:min(560px,100% - 1rem);padding:1rem;box-shadow:0 24px 56px #0f172a3d}.modal-actions{justify-content:flex-end;margin-top:.82rem}.undo-toast{left:50%;bottom:max(.9rem,env(safe-area-inset-bottom));z-index:24;background:#fff;border:1px solid #c9d8eb;border-radius:12px;width:min(520px,100% - 1rem);padding:.7rem .75rem .6rem;position:fixed;transform:translate(-50%);box-shadow:0 16px 38px #0f172a38}.undo-toast-row{justify-content:space-between;align-items:flex-start;gap:.44rem;display:flex}.undo-toast-message{color:#0f172a;margin:0;font-size:.9rem}.undo-toast-actions{justify-content:flex-start;margin-top:.46rem;display:flex}.undo-progress{background:#e2e8f0;border-radius:999px;width:100%;height:4px;margin-top:.5rem;overflow:hidden}.undo-progress-bar{background:#2563eb;border-radius:999px;height:100%;transition:width .1s linear}.form-shell{max-width:700px}.form-shell-wide{max-width:860px}.form-actions{margin-top:.92rem}.form-label-top{margin-top:.76rem}.instruction-copy{white-space:pre-wrap}.record-module{gap:.72rem;display:grid}.record-top{gap:.5rem;display:grid}.state-banner{border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--surface-soft);color:#334155;align-items:center;gap:.5rem;padding:.62rem .74rem;font-size:.9rem;display:inline-flex}.state-banner-icon{flex:none;justify-content:center;align-items:center;display:inline-flex}.is-spinning{animation:1s linear infinite spin}.state-idle{border-color:var(--status-neutral-border);background:var(--status-neutral-bg);color:var(--status-neutral-text)}.state-requesting-permission{border-color:var(--primary-soft-border);background:var(--primary-soft);color:#1e3a8a}.state-recording{color:#991b1b;background:#fef2f2;border-color:#fca5a5}.state-submitting{border-color:var(--primary-soft-border);color:#1e3a8a;background:#eff6ff}.state-ready,.state-success{border-color:var(--status-success-border);background:var(--status-success-bg);color:var(--status-success-text)}.state-error{color:#991b1b;background:#fef2f2;border-color:#fecaca}.record-controls{margin-top:.12rem}.recording-ready{margin-top:.2rem}.recorder-note{margin-top:.1rem}.submission-confirm{border-radius:var(--radius-sm);border:1px solid var(--status-success-border);background:var(--status-success-bg);color:var(--status-success-text);align-items:center;gap:.45rem;margin:0;padding:.6rem .72rem;font-weight:620;display:inline-flex}.student-hero h1{max-width:17ch}.audio-shell{background:#f8fbff;border:1px solid #d2ddeb;border-radius:12px;grid-template-columns:auto 1fr;align-items:center;gap:.64rem;margin-top:.46rem;padding:.56rem;display:grid}.audio-shell-compact{gap:.5rem;margin-top:.34rem;padding:.44rem}.audio-toggle{color:#fff;cursor:pointer;background:#2563eb;border:0;border-radius:999px;justify-content:center;align-items:center;width:34px;height:34px;transition:transform .16s,background-color .16s;display:inline-flex;box-shadow:0 6px 14px #2563eb45}.audio-toggle:hover{background:#1d4ed8;transform:translateY(-1px)}.audio-toggle:focus-visible,.audio-speed-btn:focus-visible{outline-offset:2px;outline:2px solid #93c5fd}.audio-toggle.is-playing{background:#0f172a}.audio-main{gap:.34rem;min-width:0;display:grid}.audio-progress-row{grid-template-columns:1fr auto;align-items:center;gap:.5rem;display:grid}.audio-range{appearance:none;cursor:pointer;background:#cbd8ea;border-radius:999px;width:100%;height:4px;margin:0}.audio-range::-webkit-slider-runnable-track{background:linear-gradient(90deg,#60a5fa 0%,#93c5fd 100%);border-radius:999px;height:4px}.audio-range::-webkit-slider-thumb{appearance:none;background:#1d4ed8;border:2px solid #fff;border-radius:999px;width:12px;height:12px;margin-top:-4px;box-shadow:0 0 0 1px #93c5fd}.audio-range::-moz-range-track{background:#cbd8ea;border-radius:999px;height:4px}.audio-range::-moz-range-thumb{background:#1d4ed8;border:2px solid #fff;border-radius:999px;width:12px;height:12px;box-shadow:0 0 0 1px #93c5fd}.audio-meta{justify-content:flex-end;align-items:center;gap:.42rem;display:flex}.audio-time{color:#475569;font-variant-numeric:tabular-nums;font-size:.76rem}.audio-speed{background:#fff;border:1px solid #bfd1e6;border-radius:999px;gap:.12rem;padding:.1rem;display:inline-flex}.audio-speed-btn{color:#334155;font:inherit;cursor:pointer;background:0 0;border:0;border-radius:999px;padding:.14rem .38rem;font-size:.72rem;font-weight:650}.audio-speed-btn.active{color:#1d4ed8;background:#dbeafe}.audio-error{grid-column:1/-1;margin:.1rem 0 0;font-size:.82rem}@keyframes fade-up{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.page-wrap{animation:none}.btn,.class-link{transition:none}}@media (max-width:900px){.hero-split,.workspace-split{grid-template-columns:1fr}.assignment-nav{position:static;top:auto}.toolbar-compact{grid-template-columns:1fr 1fr}.score-control{justify-items:start}}@media (max-width:700px){.page-wrap{width:min(1120px,100% - 1rem);padding-top:max(.8rem,env(safe-area-inset-top));padding-bottom:max(1.2rem,env(safe-area-inset-bottom))}.hero{border-radius:16px;padding:1.2rem}.home-hero{padding:1.2rem}.card{border-radius:14px;padding:.86rem}.workspace-header,.topbar{-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:0;padding:0;position:static}.brand-context{display:none}.class-link-row,.dense-row{flex-direction:column;align-items:flex-start}.toolbar-compact{grid-template-columns:1fr}.assignment-nav-head{flex-direction:column;align-items:flex-start}.actions{gap:.56rem}.btn{min-height:44px}.audio-shell{grid-template-columns:1fr}.audio-meta{flex-direction:column;align-items:flex-start}}