:root{--paper:#fafafa;--card:#fff;--hairline:#ebebeb;--ash:#c9c9c9;--smoke:#a8a8a8;--stone:#666;--charcoal:#4d4d4d;--obsidian:#171717;--green:#297a3a;--danger:#d93036;--danger-soft:#f5c2c4;--danger-bg:#fdf0f0;--on-obsidian:#fff;--hover:#f2f2f2;--ring:0 0 0 1px #00000014, 0 0 0 2px var(--paper);--ring-soft:0 0 0 1px var(--hairline);--backdrop:#fafafab8;--font-sans:"Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono:"Geist Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--radius:6px;--radius-pill:9999px;--gap:12px;--pad:16px;--section:32px;--control-h:40px;--scale:1;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--paper:#0a0a0a;--card:#111;--hairline:#262626;--ash:#454545;--smoke:#6e6e6e;--stone:#a1a1a1;--charcoal:#c7c7c7;--obsidian:#ededed;--green:#5fbf73;--danger:#ff6166;--danger-soft:#5c2426;--danger-bg:#2a1113;--on-obsidian:#0a0a0a;--hover:#1a1a1a;--ring:0 0 0 1px #ffffff1a, 0 0 0 2px var(--paper);--backdrop:#0a0a0ab8;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*,:before,:after{box-sizing:border-box}html{font-size:calc(16px * var(--scale))}body{background:var(--paper);color:var(--obsidian);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;margin:0;font-size:1rem;line-height:1.5}button,input,textarea,select{font:inherit;color:inherit}a{color:inherit}:focus-visible{outline:2px solid var(--obsidian);outline-offset:2px}.eyebrow{color:var(--stone);margin:0;font-size:.8125rem;font-weight:500}.page-title{letter-spacing:-.05em;margin:6px 0 0;font-size:1.875rem;font-weight:450;line-height:1.1}.muted{color:var(--stone)}.section-title{margin:0 0 var(--gap);font-size:1rem;font-weight:500}.app{grid-template-columns:248px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{border-right:1px solid var(--hairline);background:var(--paper);flex-direction:column;gap:4px;height:100vh;padding:20px 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var(--hairline);color:var(--stone);align-items:center;gap:10px;margin-top:8px;padding:10px;font-size:.875rem;display:flex;overflow:hidden}.account-link{border-radius:var(--radius);color:var(--charcoal);text-decoration:none}.account-link:hover{background:var(--hover);color:var(--obsidian)}.account-chip img{border-radius:50%;flex:none}.account-chip span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.main{width:100%;max-width:1280px;padding:40px 48px 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4px);border-radius:var(--radius);background:var(--card);box-shadow:var(--ring);text-align:left;cursor:pointer;border:0;flex-direction:column;align-items:flex-start;gap:16px;display:flex}.action:hover:not(:disabled){background:var(--hover)}.action:disabled{cursor:not-allowed;opacity:.55}.action-icon{border-radius:var(--radius);width:40px;height:40px;box-shadow:var(--ring-soft);place-items:center;display:grid}.action-label{letter-spacing:-.01em;font-size:1.125rem;font-weight:500}.action-text{flex-direction:column;gap:2px;display:flex}.action-hint{color:var(--stone);font-size:.875rem}.action.primary{background:var(--obsidian);color:var(--on-obsidian)}.action.primary .action-icon{box-shadow:0 0 0 1px color-mix(in srgb, var(--on-obsidian) 30%, transparent)}.action.primary .action-hint{color:color-mix(in srgb, var(--on-obsidian) 70%, transparent)}.action.primary:hover:not(:disabled){opacity:.9;background:var(--obsidian)}.action.danger{color:var(--danger);box-shadow:0 0 0 1px 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(width<=720px){.mail-from{width:110px}.draft-dock{justify-content:flex-end;left:8px;right:8px}.draft-bar{width:auto;max-width:50%}}.auth-page{flex-direction:column;justify-content:center;align-items:center;gap:20px;min-height:100vh;padding:32px 16px;display:flex}.auth-card{border-radius:var(--radius);background:var(--card);width:min(420px,100%);box-shadow:var(--ring);padding:32px}.auth-footer{border-top:1px solid var(--hairline);flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;margin-top:20px;padding-top:16px;font-size:.875rem;display:flex}.field-label{font-size:.875rem;font-weight:500}.code-input{font-family:var(--font-mono);letter-spacing:.3em;text-align:center;min-height:52px;font-size:1.5rem}.account-names{flex-direction:column;min-width:0;line-height:1.3;display:flex}.account-names span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.account-names span:first-child{color:var(--obsidian);font-weight:500}@media (width<=480px){.auth-card{padding:24px 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var(--danger-soft)}.qr-frame{border-radius:var(--radius);aspect-ratio:4/3;background:#000;position:relative;overflow:hidden}.qr-frame video{object-fit:cover;width:100%;height:100%}.qr-hint{border-radius:var(--radius-pill);color:#fff;white-space:nowrap;background:#0009;padding:4px 10px;font-size:.8125rem;position:absolute;bottom:12px;left:50%;transform:translate(-50%)}.chat-log{flex-direction:column;gap:4px;height:min(52vh,520px);padding:4px 2px;display:flex;overflow-y:auto}.bubble-row{flex-direction:column;align-items:flex-start;max-width:78%;display:flex}.bubble-row.mine{align-self:flex-end;align-items:flex-end}.bubble{background:var(--hover);border-radius:14px 14px 14px 4px;padding:8px 12px;font-size:.9375rem;line-height:1.45}.bubble-row.mine .bubble{background:var(--obsidian);color:var(--on-obsidian);border-radius:14px 14px 4px}.bubble-row.mine .bubble a{color:inherit}.bubble-name{color:var(--stone);margin:8px 0 2px 4px;font-size:.75rem}.bubble-time{color:var(--smoke);margin:2px 4px 6px;font-size:.6875rem}.chat-compose{align-items:flex-end;gap:8px;display:flex}.chat-compose textarea{resize:none;flex:1;min-height:44px;padding:10px 12px}.emoji-grid{flex-wrap:wrap;gap:6px;display:flex}.emoji-btn{border-radius:var(--radius);background:var(--card);width:38px;height:38px;box-shadow:var(--ring-soft);cursor:pointer;border:0;font-size:1.125rem}.emoji-btn[aria-checked=true]{box-shadow:0 0 0 2px var(--obsidian)}.bubble-wrap{align-items:center;gap:4px;display:flex}.bubble-actions{opacity:0;transition:opacity .12s;display:flex}.bubble-row:hover .bubble-actions,.bubble-actions:focus-within{opacity:1}@media (hover:none){.bubble-actions{opacity:1}}.icon-btn.danger{color:var(--danger)}.icon-btn.danger:hover{background:var(--danger-bg);color:var(--danger)}.bubble-edited{opacity:.65;font-size:.75rem}.bubble-edit{flex-direction:column;gap:6px;width:min(420px,70vw);display:flex}.bubble-edit textarea{resize:vertical;padding:8px 10px}.sort-bar{margin-bottom:var(--gap);flex-wrap:wrap;align-items:center;gap:10px;display:flex}.sort-bar .segmented button{min-height:30px;padding:0 10px;font-size:.8125rem}.month-heading{color:var(--charcoal);margin:8px 0 -4px;font-size:.875rem;font-weight:500}.class-card.is-hidden{opacity:.5}.cal-layout{gap:var(--gap);grid-template-columns:minmax(0,1fr) 300px;align-items:start;display:grid}.cal-grid{border-radius:var(--radius);background:var(--card);box-shadow:var(--ring);grid-template-columns:repeat(7,minmax(0,1fr));display:grid;overflow:hidden}.cal-weekday{border-bottom:1px solid var(--hairline);color:var(--stone);text-align:center;padding:8px;font-size:.8125rem;font-weight:500}.cal-cell{border-right:1px solid var(--hairline);border-bottom:1px solid var(--hairline);cursor:pointer;flex-direction:column;gap:3px;min-width:0;min-height:108px;padding:6px;display:flex}.cal-cell:nth-child(7n){border-right:0}.cal-cell:hover{background:var(--hover)}.cal-cell.outside .cal-date{color:var(--smoke)}.cal-cell.selected{box-shadow:inset 0 0 0 2px var(--obsidian)}.cal-date{font-variant-numeric:tabular-nums;border-radius:50%;place-items:center;width:26px;height:26px;font-size:.8125rem;display:grid}.cal-cell.today .cal-date{background:var(--obsidian);color:var(--on-obsidian);font-weight:600}.cal-events{flex-direction:column;gap:2px;min-width:0;display:flex}.event-chip{border:0;border-left:3px solid var(--ev);background:color-mix(in srgb, var(--ev) 12%, transparent);width:100%;color:var(--obsidian);text-align:left;cursor:pointer;border-radius:3px;align-items:center;gap:4px;min-width:0;padding:1px 6px;font-size:.75rem;line-height:1.5;display:flex}.event-chip.all-day{background:var(--ev);color:#fff}.event-chip.unanswered{border-left-style:dashed}.chip-time{color:var(--stone);font-variant-numeric:tabular-nums;flex:none}.event-chip.all-day .chip-time{color:inherit}.cal-more{color:var(--stone);padding-left:6px;font-size:.75rem}.cal-dots{color:var(--obsidian);letter-spacing:1px;line-height:1;display:none}.cal-day{gap:var(--gap);flex-direction:column;display:flex;position:sticky;top:16px}.event-dot{border-radius:50%;flex:none;width:10px;height:10px}.event-meta{align-items:flex-start;gap:12px;display:flex}.event-meta .event-dot{margin-top:6px}.invite-open{text-align:left;cursor:pointer;background:0 0;border:0;min-width:0;padding:0}@media (width<=1100px){.cal-layout{grid-template-columns:minmax(0,1fr)}.cal-day{position:static}}@media (width<=720px){.cal-cell{align-items:center;min-height:54px;padding:4px 2px}.cal-events{display:none}.cal-dots{display:block}}.page-loading{place-items:center;min-height:40vh;display:grid}.weekly-top{gap:var(--gap);grid-template-columns:minmax(0,2fr) minmax(0,3fr);align-items:start;display:grid}.weekly-section{flex-direction:column;gap:10px;min-width:0;display:flex}.weekly-highlight{box-shadow:0 0 0 1px var(--obsidian)}.weekly-heading{margin:0;font-size:1.125rem;font-weight:600}.weekly-fold{border-bottom:1px solid var(--hairline)}.weekly-fold:last-child{border-bottom:0}.weekly-fold{position:relative}.weekly-fold .weekly-fold-head{border-bottom:0}.weekly-quiz-btn{top:8px;right:var(--pad);position:absolute}.weekly-fold:has(.weekly-quiz-btn) .weekly-fold-head{padding-right:170px}.weekly-fold-body{padding:4px var(--pad) var(--pad) calc(var(--pad) + 28px);flex-direction:column;gap:10px;min-width:0;display:flex}.weekly-fold-body a{color:var(--obsidian);text-underline-offset:2px;text-decoration:underline}.weekly-fold-group{padding:14px var(--pad) 6px;border-bottom:1px solid var(--hairline);background:var(--paper);color:var(--stone);font-size:.8125rem;font-weight:600}.weekly-photos{white-space:nowrap;font-size:.8125rem}.weekly-subheading{margin:6px 0 0;font-size:1rem;font-weight:600}.weekly-text{white-space:pre-line;overflow-wrap:anywhere;margin:0}.weekly-list{overflow-wrap:anywhere;flex-direction:column;gap:4px;margin:0;padding-left:1.25rem;display:flex}.weekly-section a{color:var(--obsidian);text-underline-offset:2px;text-decoration:underline}.weekly-img{border-radius:var(--radius);max-width:100%;height:auto;box-shadow:var(--ring-soft);background:#fff;display:block}.weekly-photo{width:auto;max-height:360px}@media (width<=900px){.weekly-top{grid-template-columns:minmax(0,1fr)}}.weekly-select{width:auto;min-width:220px}.weekly-new{background:var(--obsidian);color:var(--on-obsidian);box-shadow:none}