@font-face{font-family:FsText;src:local(Helvetica Neue),local(Arial),local(Roboto);size-adjust:97%;ascent-override:100%;descent-override:25%;line-gap-override:0%}@font-face{font-family:FsSerif;src:local(Georgia),local(Times New Roman);size-adjust:96%;ascent-override:92%;descent-override:24%;line-gap-override:0%}:root.fs-ui[data-theme=light],:root[data-theme=light] .fs-scope{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--ground:#fbfbfa;--surface:#fff;--raised:#fff;--sunken:#f4f4f2;--ink:#1a1a1a;--ink-2:#37352f;--dim:#6f6b63;--faint:#a4a097;--line:#1a1a1a14;--line-strong:#1a1a1a26;--accent:#3f4fb3;--accent-rgb:63, 79, 179;--accent-soft:#3f4fb317;--accent-ink:#fff;--good:#277549;--good-rgb:39, 117, 73;--good-soft:#2775491f;--warn:#965814;--warn-rgb:150, 88, 20;--warn-soft:#9658141f;--danger:#b3372b;--danger-rgb:179, 55, 43;--danger-soft:#b3372b1a;--shadow:0 1px 2px #14141208, 0 8px 24px -18px #14141224;--shadow-lg:0 24px 64px -28px #14141247;--scrim:#fff9;--board-dot:#d5d8deb3;--c1:#4656b8;--c1-soft:#4656b81f;--c2:#2a7a50;--c2-soft:#2f855a21;--c3:#9a5a15;--c3-soft:#b0691d21;--c4:#b14660;--c4-soft:#b146601f;--c5:#26707f;--c5-soft:#2c7c8c21;--text-tertiary:#857f74;--select-popup-bg:#fff;--select-popup-fg:#191917}:root.fs-ui:not([data-theme=light]),:root:not([data-theme=light]) .fs-scope{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--ground:#0e0e0d;--surface:#151513;--raised:#1c1c1a;--sunken:#0a0a09;--ink:#ece9e2;--ink-2:#c9c5bc;--dim:#8d8a83;--faint:#57554f;--line:#ece9e214;--line-strong:#ece9e229;--accent:#a3adf7;--accent-rgb:163, 173, 247;--accent-soft:#a3adf71f;--accent-ink:#0e0e0d;--good:#6fcf8e;--good-rgb:111, 207, 142;--good-soft:#6fcf8e1f;--warn:#e2a55a;--warn-rgb:226, 165, 90;--warn-soft:#e2a55a21;--danger:#f08a7e;--danger-rgb:240, 138, 126;--danger-soft:#f08a7e1f;--shadow:0 1px 0 #ffffff05 inset, 0 12px 30px -18px #000000b3;--shadow-lg:0 30px 90px -30px #000c;--scrim:#09090899;--board-dot:#2a2c33b3;--c1:#a3adf7;--c1-soft:#a3adf724;--c2:#7fd3a0;--c2-soft:#7fd3a021;--c3:#e6b06a;--c3-soft:#e6b06a24;--c4:#ef97ab;--c4-soft:#ef97ab21;--c5:#7fc9d6;--c5-soft:#7fc9d621;--text-tertiary:#7a776f;--select-popup-bg:#1c1c1a;--select-popup-fg:#ece9e2}:root.fs-ui,.fs-scope,:root.fs-ui .rg-rail{--font-text:"Inter", "FsText", "Helvetica Neue", Arial, sans-serif;--font-latin:"Inter";--font-serif:var(--font-text);--font-brand:"FsSerif", Georgia, "Times New Roman", serif;--font-sans:var(--font-text);--ease:cubic-bezier(.16, 1, .3, 1);--r-card:16px;--r-inner:11px;--board-dots:radial-gradient(circle, var(--board-dot) 1.6px, transparent 1.9px);--color-bg:var(--ground);--color-surface:var(--sunken);--color-surface-hover:var(--sunken);--surface-sunken:var(--sunken);--surface-sheet:var(--surface);--surface-raised:var(--raised);--surface-raised-solid:var(--raised);--surface-overlay:var(--raised);--reggie-panel:var(--raised);--glass-rim:transparent;--glass-sheen:none;--glass-lift:var(--shadow);--blur-sheet:none;--blur-surface:none;--depth-line:none;--rule:var(--line);--rule-strong:var(--line-strong);--color-border:var(--line);--color-border-strong:var(--line-strong);--text-primary:var(--ink);--text-secondary:var(--ink-2);--text-dim:var(--dim);--autofill-bg:var(--raised);--autofill-fg:var(--ink);--color-accent:var(--accent);--teal:var(--accent);--teal-rgb:var(--accent-rgb);--gold:var(--accent);--gold-rgb:var(--accent-rgb);--gold-bright:var(--accent);--gold-bright-rgb:var(--accent-rgb);--select-bg:var(--accent-soft);--select-fg:var(--accent);--select-mark:var(--accent);--change-mark:var(--accent);--change-wash:var(--accent-soft);--color-urgent-text:var(--danger);--color-urgent-bg:var(--danger-soft);--color-success-text:var(--good);--color-success-bg:var(--good-soft);--color-amber:var(--warn);--color-amber-bar:var(--warn);--amber-rgb:var(--warn-rgb);--pill:var(--raised);--pill-border:var(--line);--panel:var(--raised);--hover:var(--sunken);--bubble:var(--sunken);--muted:var(--dim);--navy:var(--accent);--ok:var(--good);--ok-bg:var(--good-soft);--danger-bg:var(--danger-soft);--tool-on:var(--accent-soft);--shadow-hi:var(--shadow);--shadow-pop:var(--shadow-lg);--r-sheet:var(--r-card);--r-inline:10px;--fs-display:24px;--lh-display:30px;--tr-display:-.015em}:root.fs-ui body,:root.fs-ui:not([data-theme=light]) body,:root.fs-ui .app-shell,:root.fs-ui:not([data-theme=light]) .app-shell{background-color:var(--ground);background-image:var(--board-dots);background-size:48px 48px;background-attachment:fixed}:root.fs-ui body{font-family:var(--font-text)}:root.fs-ui ::selection{background:var(--accent-soft)}:root.fs-ui ::-webkit-scrollbar-thumb{background:var(--line-strong)}:root.fs-ui *{-webkit-tap-highlight-color:var(--accent-soft)}:root.fs-ui .rg-sheet{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow);-webkit-backdrop-filter:none}:root.fs-ui .rg-heads{background:var(--surface);-webkit-backdrop-filter:none}:root.fs-ui .rg-row[data-interactive=true]:focus-visible{outline-color:var(--accent)}:root.fs-ui .rg-btn{transition:background .2s, border-color .2s, color .2s, transform .2s var(--ease);border-radius:10px;padding:.55rem 1rem;font-size:.86rem;font-weight:600}:root.fs-ui .rg-btn:active:not(:disabled){transform:scale(.98)}:root.fs-ui .rg-btn[data-variant=primary]{background:var(--ink);border:1px solid var(--ink);color:var(--ground)}:root.fs-ui .rg-btn[data-variant=danger]{background:var(--danger);border:1px solid var(--danger);color:#fff}:root.fs-ui .rg-btn[data-variant=danger]:hover:not(:disabled){filter:brightness(.92)}:root.fs-ui .rg-btn[data-variant=secondary]{background:var(--raised);border:1px solid var(--line-strong);color:var(--ink)}:root.fs-ui .rg-btn[data-variant=quiet]{color:var(--ink-2);background:0 0;border:1px solid #0000;padding-left:.7rem;padding-right:.7rem}@media (hover:hover){:root.fs-ui .rg-btn[data-variant=quiet]:hover:not(:disabled){background:var(--sunken);color:var(--ink)}:root.fs-ui .rg-btn[data-variant=primary]:hover:not(:disabled){background:var(--ink-2);border-color:var(--ink-2)}:root.fs-ui .rg-btn[data-variant=secondary]:hover:not(:disabled){background:var(--sunken);border-color:var(--line-strong)}}:root.fs-ui .rg-btn[data-variant=primary]:active:not(:disabled){background:var(--ink-2)}:root.fs-ui .rg-field{background:var(--raised);border:1px solid var(--line-strong);border-radius:var(--r-inner)}:root.fs-ui .rg-field::placeholder{color:var(--faint)}:root.fs-ui .rg-field:focus{background:var(--raised);border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}:root.fs-ui .rg-pill,:root.fs-ui .rg-iconbtn{background:var(--raised);border:1px solid var(--line-strong);box-shadow:none}@media (hover:hover){:root.fs-ui .rg-pill:hover,:root.fs-ui .rg-iconbtn:hover{box-shadow:none;border-color:var(--ink-2)}}:root.fs-ui .rg-pill[data-active=true],:root.fs-ui .rg-iconbtn[data-active=true]{background:var(--accent-soft);color:var(--accent);border-color:#0000}:root.fs-ui .rg-rail{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);-webkit-backdrop-filter:none;border-radius:18px}:root.fs-ui .rg-rail[data-overlay=true],:root.fs-ui[data-theme=light] .rg-rail[data-overlay=true]{box-shadow:var(--shadow-lg)}:root.fs-ui .rg-rail[data-edge=true]{background:var(--surface)}:root.fs-ui .rg-rail .rg-nav-item{width:calc(100% - 16px);color:var(--ink-2);border-radius:10px;margin:1px 8px;padding-left:12px}:root.fs-ui .rg-rail:not([data-collapsed=true]) .rg-nav-item.rg-rail-sub{padding-left:28px}:root.fs-ui .rg-rail .rg-nav-item[data-active=true]{background:var(--accent-soft);color:var(--accent)}:root.fs-ui .rg-rail .rg-nav-item svg{opacity:.9}@media (hover:hover){:root.fs-ui .rg-rail .rg-nav-item:hover{background:var(--sunken);color:var(--ink)}:root.fs-ui .rg-rail .rg-nav-item[data-active=true]:hover{background:var(--accent-soft);color:var(--accent)}}:root.fs-ui .rg-rail .rg-nav-item:active{background:var(--sunken)}:root.fs-ui .rg-rail .rg-nav-item[data-active=true]:active{background:var(--accent-soft)}:root.fs-ui .rg-rail-mark{display:none}:root.fs-ui .rg-rail-rule{background:var(--line);margin:8px 14px}:root.fs-ui .rg-rail-btn{color:var(--dim);border-radius:9px}.fs-brand-mark{background:var(--ink,var(--text-primary));flex:none;width:1.55rem;height:1.55rem;display:block;-webkit-mask:url(/fschoolai-mark.svg) 50%/contain no-repeat;mask:url(/fschoolai-mark.svg) 50%/contain no-repeat}:root.fs-ui .fs-brand{letter-spacing:-.01em;color:var(--ink);font-size:1.02rem;font-weight:700}:root.fs-ui .fs-brand em{font-family:var(--font-brand);font-style:italic;font-weight:700}.fs-side-label{color:var(--ink-2);white-space:nowrap;padding:0 2px 7px;font-size:.78rem;font-weight:600}.fs-continue{text-align:left;cursor:pointer;background:var(--raised);border:1px solid var(--line);border-radius:var(--r-inner);width:100%;transition:border-color .2s, transform .3s var(--ease);margin-bottom:14px;padding:.7rem .8rem;font-family:inherit;display:block}.fs-continue:hover{border-color:var(--line-strong);transform:translateY(-1px)}.fs-continue b{color:var(--ink);text-overflow:ellipsis;white-space:nowrap;font-size:.86rem;font-weight:600;line-height:1.3;display:block;overflow:hidden}.fs-continue span{color:var(--dim);margin-top:.3rem;font-size:.74rem;display:block}.fs-recent{gap:1px;margin:0 -8px;padding:0;list-style:none;display:grid}.fs-recent li{border-radius:8px;min-width:0;padding:.4rem .6rem}.fs-recent b{color:var(--ink-2);text-overflow:ellipsis;white-space:nowrap;font-size:.84rem;font-weight:400;display:block;overflow:hidden}.fs-recent span{color:var(--dim);font-size:.72rem;display:block}:root.fs-ui .app-header{z-index:20;isolation:isolate;padding-bottom:6px;position:sticky;top:0}:root.fs-ui .app-header:before{content:"";z-index:-1;background-color:var(--ground);background-image:var(--board-dots);pointer-events:none;background-size:48px 48px;background-attachment:fixed;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#000 70%,#0000);mask-image:linear-gradient(#000 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small{letter-spacing:.06em;text-transform:uppercase;color:var(--dim);font-size:.68rem;font-weight:600}.fs-avatar{background:var(--ink);width:2rem;height:2rem;color:var(--ground);cursor:pointer;transition:transform .2s var(--ease), box-shadow .2s;border:0;border-radius:50%;flex:none;place-items:center;margin-left:4px;padding:0;font-family:inherit;font-size:.78rem;font-weight:700;display:inline-grid}.fs-avatar:hover{transform:translateY(-1px)}.fs-avatar[aria-current=page]{box-shadow:0 0 0 2px var(--ground), 0 0 0 4px var(--accent)}.fs-you-menu{z-index:10003;background:var(--raised);border:1px solid var(--line-strong);border-radius:var(--r-inner);min-width:12rem;box-shadow:var(--shadow-lg);color:var(--ink);font-family:var(--font-text);animation:fs-k-pop-in .22s var(--ease);padding:.35rem;position:fixed}.fs-you-menu__item{width:100%;min-height:2.4rem;color:var(--ink);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:.55rem;align-items:center;padding:0 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.fs-you-menu__item{gap:.6rem}.fs-overflow-menu__icon{color:var(--dim);place-items:center;display:inline-grid}.fs-overflow-menu__danger,.fs-overflow-menu__danger .fs-overflow-menu__icon{color:var(--danger)}.fs-lang-menu{overscroll-behavior:contain;min-width:13.5rem;max-height:calc(100dvh - 5rem);overflow-y:auto}.fs-lang-menu__item{gap:.75rem;font-size:.95rem}.fs-lang-menu__item[aria-checked=true]{background:var(--sunken);font-weight:600}.fs-lang-menu__badge{box-sizing:border-box;background:var(--sunken);min-width:1.6rem;height:1.6rem;color:var(--ink-2);letter-spacing:.02em;border-radius:.4rem;flex:none;place-items:center;padding:0 .25rem;font-size:.66rem;font-weight:700;line-height:1;display:inline-grid}.fs-lang-menu__item[aria-checked=true] .fs-lang-menu__badge{background:var(--raised);color:var(--ink)}.fs-menu-trigger{font:inherit;color:var(--ink);background:var(--raised);border:1px solid var(--line-strong);cursor:pointer;text-align:left;align-items:center;gap:.6rem;display:inline-flex}.fs-menu-trigger:disabled{opacity:.5;cursor:default}.fs-menu-trigger--field{box-sizing:border-box;border-radius:var(--r-inner);width:100%;padding:.7rem .9rem;font-size:.92rem}.fs-menu-trigger--pill{border-radius:99px;padding:.35rem .7rem .35rem .8rem;font-size:.8rem}.fs-menu-trigger:focus-visible,.fs-menu-trigger[data-open=true]{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);outline:0}.fs-menu-trigger[data-active=true]{border-color:var(--accent);color:var(--accent)}.fs-menu-trigger__text{flex:1;gap:1px;min-width:0;display:grid}.fs-menu-trigger__label{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.fs-menu-trigger__chev{color:var(--dim);transition:transform .2s var(--ease);flex:none}.fs-menu-trigger[data-open=true] .fs-menu-trigger__chev{transform:rotate(180deg)}.fs-menu-trigger[data-active=true] .fs-menu-trigger__chev{color:inherit}.fs-menu{z-index:100000;background:var(--raised);border:1px solid var(--line-strong);border-radius:var(--r-inner);max-width:calc(100vw - 16px);max-height:min(20rem,100dvh - 16px);box-shadow:var(--shadow-lg);color:var(--ink);font-family:var(--font-text);animation:fs-k-pop-in .22s var(--ease);padding:.35rem;position:fixed;overflow-y:auto}.fs-menu__item{width:100%;min-height:2.4rem;color:var(--ink);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:.55rem;align-items:center;gap:.6rem;padding:.4rem 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