:root{--bg:#f5f6fb;--surface:#fff;--surface-2:#eef0f7;--border:#e2e5ef;--text:#141a2e;--muted:#5d667f;--primary:#4f46e5;--primary-ink:#fff;--primary-soft:#e6e5fd;--good:#0f9d6b;--good-soft:#dcf5ea;--warn:#b26a00;--warn-soft:#fdf0d8;--bad:#d4334a;--bad-soft:#fde4e8;--shadow:0 1px 2px #1018280f, 0 4px 16px #1018280f;--radius:16px;--radius-sm:10px;--nav-h:64px;--safe-b:env(safe-area-inset-bottom,0px);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0b1020;--surface:#141a2e;--surface-2:#1c2440;--border:#283253;--text:#e8ebf6;--muted:#9aa3be;--primary:#8b85ff;--primary-ink:#0b1020;--primary-soft:#262a5c;--good:#3ed39b;--good-soft:#10352a;--warn:#f5b443;--warn-soft:#3a2c10;--bad:#ff6b81;--bad-soft:#3d1621;--shadow:0 1px 2px #0000004d, 0 6px 20px #00000040;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}:root[data-theme=dark]{--bg:#0b1020;--surface:#141a2e;--surface-2:#1c2440;--border:#283253;--text:#e8ebf6;--muted:#9aa3be;--primary:#8b85ff;--primary-ink:#0b1020;--primary-soft:#262a5c;--good:#3ed39b;--good-soft:#10352a;--warn:#f5b443;--warn-soft:#3a2c10;--bad:#ff6b81;--bad-soft:#3d1621;--shadow:0 1px 2px #0000004d, 0 6px 20px #00000040;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}:root[data-palette]{--primary:var(--pal-light);--primary-ink:#fff;--primary-soft:color-mix(in srgb, var(--pal-light) 14%, #fff);--bg:color-mix(in srgb, var(--pal-light) 7%, #f8f9fc);--surface-2:color-mix(in srgb, var(--pal-light) 9%, #f1f3f8);--border:color-mix(in srgb, var(--pal-light) 16%, #e5e7ef)}@media (prefers-color-scheme:dark){:root[data-palette]:not([data-theme=light]){--primary:var(--pal-dark);--primary-ink:#0b1020;--primary-soft:color-mix(in srgb, var(--pal-dark) 22%, #141a2e);--bg:color-mix(in srgb, var(--pal-dark) 8%, #0b1020);--surface:color-mix(in srgb, var(--pal-dark) 7%, #141a2e);--surface-2:color-mix(in srgb, var(--pal-dark) 13%, #1c2440);--border:color-mix(in srgb, var(--pal-dark) 20%, #283253)}}:root[data-palette][data-theme=dark]{--primary:var(--pal-dark);--primary-ink:#0b1020;--primary-soft:color-mix(in srgb, var(--pal-dark) 22%, #141a2e);--bg:color-mix(in srgb, var(--pal-dark) 8%, #0b1020);--surface:color-mix(in srgb, var(--pal-dark) 7%, #141a2e);--surface-2:color-mix(in srgb, var(--pal-dark) 13%, #1c2440);--border:color-mix(in srgb, var(--pal-dark) 20%, #283253)}:root[data-palette] body{font-family:var(--pal-font)}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;margin:0;font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}body:before{content:"";z-index:-1;pointer-events:none;background:radial-gradient(60vw 60vw at 12% -8%, color-mix(in srgb, var(--primary) 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14px}.stack{flex-direction:column;gap:14px;display:flex}.row-between{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.with-icon{align-items:center;gap:8px;display:flex}.wide-only{display:none}@media (width>=640px){.wide-only{display:inline}.narrow-only{display:none}}label{flex-direction:column;gap:6px;font-size:.95rem;font-weight:500;display:flex}input,select{font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;min-height:48px;padding:12px 14px}input:focus-visible,select:focus-visible,button:focus-visible,a:focus-visible{outline:3px solid color-mix(in srgb, var(--primary) 45%, transparent);outline-offset:2px}input[type=time]{width:auto;min-width:7.5em;min-height:42px;padding:8px 10px}fieldset{border:0;margin:0;padding:0}legend{margin-bottom:6px;font-size:.95rem;font-weight:500}.btn{font:inherit;border:1px solid var(--border);background:var(--surface);min-height:44px;color:var(--text);cursor:pointer;white-space:nowrap;-webkit-user-select:none;user-select:none;border-radius:999px;justify-content:center;align-items:center;gap:8px;padding:0 16px;font-weight:600;text-decoration:none;transition:background .15s,transform 50ms;display:inline-flex}.btn:hover:not(:disabled){background:var(--surface-2)}.btn:active:not(:disabled){transform:scale(.98)}.btn:disabled{opacity:.5;cursor:default}.btn.primary{background:var(--primary);border-color:var(--primary);color:var(--primary-ink)}.btn.primary:hover:not(:disabled){background:color-mix(in srgb, var(--primary) 88%, black)}.btn.big{min-height:54px;padding:0 24px;font-size:1.05rem}.btn.small{min-height:34px;padding:0 12px;font-size:.9rem}.btn.wide{width:100%;margin-top:12px}.btn.danger-text{color:var(--bad)}.icon-btn{width:40px;height:40px;color:inherit;cursor:pointer;background:0 0;border:0;border-radius:50%;flex:none;place-items:center;display:inline-grid}.icon-btn:hover{background:var(--surface-2)}.link-btn{color:var(--primary);font:inherit;cursor:pointer;background:0 0;border:0;align-items:center;gap:4px;padding:4px 0;font-size:.9rem;font-weight:500;display:inline-flex}.chip{border:1px solid var(--border);background:var(--surface);min-height:38px;color:var(--text);font:inherit;cursor:pointer;border-radius:999px;align-items:center;gap:6px;padding:0 14px;font-size:.9rem;font-weight:500;display:inline-flex}.chip.active{background:var(--primary-soft);border-color:var(--primary);color:var(--primary)}.chip.danger{color:var(--bad)}.chip:disabled{opacity:.45;cursor:default}.segmented{background:var(--surface-2);scrollbar-width:none;border-radius:999px;gap:2px;max-width:100%;padding:4px;display:inline-flex;overflow-x:auto}.segmented::-webkit-scrollbar{display:none}.segmented button:disabled{opacity:.45;cursor:not-allowed}.segmented button{color:var(--muted);font:inherit;cursor:pointer;white-space:nowrap;background:0 0;border:0;border-radius:999px;flex:none;padding:8px 14px;font-size:.9rem;font-weight:600}.segmented button.active{background:var(--surface);color:var(--text);box-shadow:var(--shadow)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}.collapsible{padding:0}.collapsible-head{cursor:pointer;text-align:left;width:100%;color:var(--text);border-radius:var(--radius);background:0 0;border:0;align-items:center;gap:10px;padding:16px 18px;display:flex}.collapsible.open .collapsible-head{border-radius:var(--radius) var(--radius) 0 0}.collapsible-head:hover{background:var(--surface-2)}.collapsible-title{align-items:center;gap:8px;font-size:1.05rem;font-weight:600;display:flex}.collapsible-head .chevron{color:var(--muted);flex:none;transition:transform .15s}.collapsible-head 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a{color:var(--muted);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:2px;font-size:.75rem;font-weight:600;text-decoration:none;display:flex}.bottomnav a.active{color:var(--primary)}@media (width>=800px){.topnav{display:flex}.bottomnav{display:none}.content{padding:28px 24px 48px}}.page{flex-direction:column;gap:16px;display:flex}.page.narrow{max-width:640px;margin:0 auto}.page-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:12px;display:flex}.page-head p{margin:0}.center-page{place-content:center;justify-items:center;gap:12px;min-height:100dvh;padding:24px;display:grid}.auth{background:radial-gradient(1200px 500px at 10% -10%, color-mix(in srgb, var(--primary) 18%, transparent), transparent), var(--bg);place-items:center;min-height:100dvh;padding:24px 16px;display:grid}.auth-card{width:100%;max-width:420px;padding:28px 24px}.auth-card h1{margin-top:12px}.code-input{letter-spacing:.3em;text-align:center;font-variant-numeric:tabular-nums;font-size:1.8rem}.page-head-actions{flex-wrap:wrap;justify-content:flex-end}.theme-picker{position:relative}.theme-picker-button{gap:6px}.theme-menu{z-index:60;width:min(340px,100vw - 32px);padding:12px;position:absolute;top:calc(100% + 6px);right:0;box-shadow:0 12px 40px #10182838}@media (width<=560px){.theme-menu{width:auto;position:fixed;top:72px;left:16px;right:16px}}.theme-picker-button.compact{padding:0 12px;font-size:1.05rem}.student-tabs button{font-family:inherit}.theme-menu-title{margin:2px 4px 10px;font-weight:700}.theme-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.theme-card{border:1px solid var(--border);background:var(--surface);color:var(--text);font:inherit;text-align:left;cursor:pointer;border-radius:12px;align-items:center;gap:10px;padding:8px;font-size:.92rem;font-weight:600;display:flex}.theme-card:hover{border-color:var(--primary)}.theme-card.selected{border-color:var(--primary);box-shadow:0 0 0 2px color-mix(in srgb, var(--primary) 35%, transparent)}.theme-swatch{border-radius:10px;flex:none;place-items:center;width:34px;height:34px;font-size:1.05rem;display:grid}.theme-card-name{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.theme-check{color:var(--primary);flex:none}.logo-link{color:inherit;text-decoration:none}.landing{background:radial-gradient(1100px 520px at 0% -10%, color-mix(in srgb, var(--primary) 20%, transparent), transparent), radial-gradient(900px 480px at 110% 10%, color-mix(in srgb, var(--good) 12%, transparent), transparent), var(--bg);min-height:100dvh}.landing main{flex-direction:column;gap:56px;max-width:1120px;margin:0 auto;padding:0 16px 48px;display:flex}.landing-nav{justify-content:space-between;align-items:center;gap:12px;max-width:1120px;margin:0 auto;padding:16px;display:flex}.landing-nav .btn{min-height:40px;padding:0 14px}.landing-hero{text-align:center;flex-direction:column;align-items:center;gap:18px;padding-top:40px;display:flex}.landing-eyebrow{background:var(--primary-soft);color:var(--primary);border-radius:999px;align-items:center;gap:8px;margin:0;padding:6px 14px;font-size:.9rem;font-weight:600;display:inline-flex}.landing-hero h1{letter-spacing:-.02em;max-width:820px;margin:0;font-size:clamp(2rem,6vw,3.6rem);line-height:1.08}.landing-lead{max-width:720px;margin:0;font-size:clamp(1.1rem,2.6vw,1.3rem)}.landing-sublead{max-width:640px;color:var(--muted);margin:0;font-size:1.05rem}.landing-accent{color:var(--primary)}.landing-cta{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.landing-value{border-radius:var(--radius);text-align:center;background:linear-gradient(135deg, var(--primary-soft), color-mix(in srgb, var(--good-soft) 70%, var(--surface)));border:1px solid var(--border);padding:36px 24px}.landing-value h2{letter-spacing:-.01em;margin:0 auto 14px;font-size:clamp(1.5rem,4vw,2.2rem)}.landing-value p{max-width:680px;margin:0 auto 12px;font-size:1.08rem}.landing-value p:last-child{margin-bottom:0}.landing-value-strong{font-weight:700;font-size:1.15rem!important}.landing-section{flex-direction:column;gap:20px;scroll-margin-top:16px;display:flex}.landing-section-title{text-align:center;letter-spacing:-.01em;margin:0;font-size:clamp(1.5rem,4vw,2.2rem)}.landing-tour-sub{text-align:center;margin:-8px 0 0}.landing-tour-tabs{scrollbar-width:thin;gap:8px;max-width:100%;margin:0 auto;padding:2px 2px 6px;display:flex;overflow-x:auto}@media (width>=900px){.landing-tour-tabs{flex-wrap:wrap;justify-content:center}}.landing-tour-tabs button{border:1px solid var(--border);background:var(--surface);min-height:40px;color:var(--text);font:inherit;cursor:pointer;border-radius:999px;flex:none;align-items:center;gap:7px;padding:0 14px;font-weight:600;display:inline-flex}.landing-tour-tabs button.active{background:var(--primary);border-color:var(--primary);color:var(--primary-ink)}.landing-tour-panel{flex-direction:column;gap:16px;display:flex}.landing-frame{border:1px solid var(--border);background:var(--surface);border-radius:14px;overflow:hidden;box-shadow:0 2px 6px #10182814,0 24px 60px -12px #10182840}.landing-frame-bar{background:var(--surface-2);border-bottom:1px solid var(--border);gap:6px;padding:10px 14px;display:flex}.landing-frame-bar span{background:#ff5f57;border-radius:50%;width:11px;height:11px}.landing-frame-bar span:nth-child(2){background:#febc2e}.landing-frame-bar span:nth-child(3){background:#28c840}.landing-frame img{width:100%;height:auto;display:block}.landing-tour-caption{text-align:center;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;max-width:760px;margin:0 auto;display:grid}.landing-tour-caption h3{margin:0 0 4px;font-size:1.15rem}.landing-tour-caption p{margin:0}.landing-pillars{grid-template-columns:1fr;gap:16px;display:grid}@media (width>=760px){.landing-pillars{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width>=1000px){.landing-pillars.three{grid-template-columns:repeat(3,minmax(0,1fr))}}.landing-pillar{padding:24px}.landing-pillar h3{margin:14px 0 8px;font-size:1.15rem}.landing-pillar>h3:first-child{margin-top:0}.landing-pillar p{margin:0 0 12px}.landing-pillar p:last-child{margin:12px 0 0}.landing-icon{background:var(--primary-soft);width:36px;height:36px;color:var(--primary);border-radius:10px;flex:none;place-items:center;display:inline-grid}.landing-icon.big{border-radius:13px;width:46px;height:46px}.landing-points{gap:6px;margin:0;padding-left:1.2rem;display:grid}.landing-soon{background:var(--warn-soft);color:var(--warn);white-space:nowrap;border-radius:999px;margin-left:8px;padding:1px 8px;font-size:.75rem;font-weight:600}.landing-split{grid-template-columns:1fr;align-items:center;gap:20px;display:grid}@media (width>=860px){.landing-split{grid-template-columns:1.1fr 1fr;gap:40px}}.landing-split h2{align-items:center;gap:10px;margin:0 0 12px;font-size:clamp(1.4rem,3.6vw,2rem);display:flex}.landing-split p{margin:0 0 10px}.landing-full{text-align:center;padding:28px 24px}.landing-full h2{margin:0 0 8px;font-size:clamp(1.4rem,3.6vw,2rem)}.landing-full>p{max-width:620px;margin:0 auto 18px}.landing-checks{text-align:left;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 20px;max-width:820px;margin:0 auto;padding:0;list-style:none;display:grid}@media (width>=820px){.landing-checks{grid-template-columns:repeat(4,minmax(0,1fr))}}.landing-checks li{align-items:baseline;gap:8px;font-weight:600;display:flex}.landing-final{text-align:center;flex-direction:column;align-items:center;gap:14px;display:flex}.landing-final h2{margin:0;font-size:clamp(1.4rem,4vw,2rem)}.landing-final p{max-width:640px;margin:0}.landing-final-line{font-size:clamp(1.25rem,3.4vw,1.7rem);font-weight:700;line-height:1.25}.landing-footer{border-top:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:12px;max-width:1120px;margin:0 auto;padding:24px 16px 40px;display:flex}.summary-row{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}@media (width>=720px){.summary-row{grid-template-columns:repeat(3,1fr)}}@media (width>=1100px){.summary-row{grid-template-columns:repeat(6,1fr)}}.summary-tile{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);flex-direction:column;gap:2px;padding:14px 16px;display:flex}.summary-tile-icon{width:34px;height:34px;color:var(--primary);background:var(--primary-soft);border-radius:10px;justify-content:center;align-items:center;margin-bottom:4px;display:inline-flex}.summary-tile.good .summary-tile-icon{color:var(--good);background:var(--good-soft)}button.summary-tile.clickable{font:inherit;color:inherit;text-align:left;cursor:pointer}button.summary-tile.clickable:hover{border-color:var(--primary)}.summary-tile.attention{border-color:var(--warn)}.summary-tile.attention .summary-tile-icon{color:var(--warn);background:var(--warn-soft)}.inbox-list{flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.inbox-row{border:0;border-top:1px solid var(--border);width:100%;font:inherit;color:inherit;text-align:left;cursor:pointer;background:0 0;align-items:center;gap:12px;padding:12px 4px;display:flex}.inbox-list>li:first-child .inbox-row,.inbox-list>li.inbox-row:first-child{border-top:none}.inbox-row.static{cursor:default;flex-wrap:wrap}.inbox-count{background:var(--warn);color:#fff;text-align:center;border-radius:999px;min-width:20px;padding:0 6px;font-size:12px;font-weight:700;display:inline-block}.inbox-preview{text-overflow:ellipsis;white-space:nowrap;max-width:100%;overflow:hidden}.summary-tile-value{font-size:1.5rem;font-weight:700;line-height:1.1}.summary-tile-label{color:var(--muted);font-size:.85rem}.activity-feed .timeline{margin-top:4px}.feed-chip{color:var(--kid,var(--primary));background:color-mix(in srgb, var(--kid,var(--primary)) 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