@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./inter-vietnamese-wght-normal-CBcvBZtf.woff2)format("woff2-variations");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:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./inter-latin-ext-wght-normal-DO1Apj_S.woff2)format("woff2-variations");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:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./inter-latin-wght-normal-Dx4kXJAl.woff2)format("woff2-variations");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}@property --ambient-hue{syntax:"<number>";inherits:true;initial-value:22}@property --ambient-chroma{syntax:"<number>";inherits:true;initial-value:1}:root{--font:"Inter Variable", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-text:system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--round:1;--radius:calc(14px * var(--round));--radius-lg:calc(20px * var(--round));--ease:cubic-bezier(.2, .8, .2, 1);--spring:cubic-bezier(.34, 1.56, .64, 1);--blur:blur(22px) saturate(165%);--accent-h:22;--accent-c:1}:root,[data-palette=dark]{--bg:#08080a;--ink:#f3f3f5;--ink-2:#a8a8b2;--ink-3:#8c8c97;--ink-fade:#8f8f9b;--line:#ffffff14;--line-2:#ffffff24;--glass:#18181e8c;--glass-2:#ffffff0f;--glass-strong:#121217b8;--glass-card:#16161cd1;--glass-solid:#18181e;--glass-strong-solid:#121217;--glass-card-solid:#16161c;--field:#0000004d;--sel:#ffffff14;--seg-on:#ffffff21;--track:#ffffff12;--switch-off:#ffffff29;--sheen:linear-gradient(140deg, #ffffff13, #fff0 40%);--rim:inset 0 1px 0 #ffffff17;--shadow:0 1px 1px #0000004d, 0 12px 32px -14px #000000b3;--shadow-lg:0 30px 80px -24px #000000d9;--accent:#ff6363;--accent-fill:#ff6363;--accent-fill-ink:#0b0b0e;--primary:#f3f3f5;--primary-ink:#0b0b0e;--primary-rim:inset 0 1px 0 #fff9;--good:#4ade80;--good-ink:#03210e;--good-bg:#4ade801f;--bad:#ff7a7a;--bad-ink:#2a0505;--bad-bg:#ff636321;--hard:#fbbf24;--hard-bg:#fbbf241f;--easy:#7cb6ff;--easy-bg:#7cb6ff21;--key-top:#ffffff1c;--key-bottom:#ffffff0a;--grid:#ffffff0d;--amb-l:62%;--amb-a:.42;--amb-b:.24;--amb-c:.2;--tab-l:72%;--tab-c:.15;--hue-ink-l:82%;--foot:#0000002e;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}[data-palette=oled]{--bg:#000;--ink:#f3f3f5;--ink-2:#a8a8b2;--ink-3:#8c8c97;--ink-fade:#8f8f9b;--line:#ffffff1a;--line-2:#ffffff29;--glass:#12121680;--glass-2:#ffffff0f;--glass-strong:#0a0a0cc7;--glass-card:#0c0c0fe6;--glass-solid:#0c0c0e;--glass-strong-solid:#08080a;--glass-card-solid:#0c0c0f;--field:#ffffff0a;--sel:#ffffff17;--seg-on:#ffffff24;--track:#ffffff14;--switch-off:#ffffff2e;--sheen:linear-gradient(140deg, #ffffff0f, #fff0 40%);--rim:inset 0 1px 0 #ffffff14;--shadow:0 1px 1px #0006, 0 12px 32px -14px #000c;--shadow-lg:0 30px 80px -24px #000000e6;--accent:#ff6363;--accent-fill:#ff6363;--accent-fill-ink:#000;--primary:#f3f3f5;--primary-ink:#000;--primary-rim:inset 0 1px 0 #fff9;--good:#4ade80;--good-ink:#03210e;--good-bg:#4ade801f;--bad:#ff7a7a;--bad-ink:#2a0505;--bad-bg:#ff636321;--hard:#fbbf24;--hard-bg:#fbbf241f;--easy:#7cb6ff;--easy-bg:#7cb6ff21;--key-top:#ffffff1a;--key-bottom:#ffffff08;--grid:#ffffff0b;--amb-l:62%;--amb-a:.3;--amb-b:.18;--amb-c:.14;--tab-l:72%;--tab-c:.15;--hue-ink-l:82%;--foot:#ffffff08;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}[data-palette=dim]{--bg:#1d2027;--ink:#e8eaf0;--ink-2:#a9afbd;--ink-3:#9ea5b3;--ink-fade:#a3a9b6;--line:#ffffff17;--line-2:#ffffff26;--glass:#2a2e388c;--glass-2:#ffffff0f;--glass-strong:#20232bc7;--glass-card:#262a33e0;--glass-solid:#242830;--glass-strong-solid:#20232b;--glass-card-solid:#262a33;--field:#00000029;--sel:#ffffff14;--seg-on:#ffffff21;--track:#ffffff12;--switch-off:#ffffff2e;--sheen:linear-gradient(140deg, #ffffff0f, #fff0 40%);--rim:inset 0 1px 0 #ffffff14;--shadow:0 1px 1px #0003, 0 12px 32px -14px #0000008c;--shadow-lg:0 30px 80px -24px #000000a6;--accent:#ff7d7d;--accent-fill:#ff7d7d;--accent-fill-ink:#14161b;--primary:#e8eaf0;--primary-ink:#14161b;--primary-rim:inset 0 1px 0 #ffffff8c;--good:#5ee08f;--good-ink:#03210e;--good-bg:#5ee08f1f;--bad:#ff8a8a;--bad-ink:#2a0505;--bad-bg:#ff787821;--hard:#f9c74f;--hard-bg:#f9c74f1f;--easy:#8fc1ff;--easy-bg:#8fc1ff21;--key-top:#ffffff1a;--key-bottom:#ffffff0a;--grid:#ffffff0a;--amb-l:62%;--amb-a:.32;--amb-b:.2;--amb-c:.16;--tab-l:74%;--tab-c:.13;--hue-ink-l:84%;--foot:#00000024;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}[data-palette=light]{--bg:#f2f2f5;--ink:#111114;--ink-2:#4c4c56;--ink-3:#5f5f6a;--ink-fade:#4a4a55;--line:#14142817;--line-2:#14142829;--glass:#ffffff94;--glass-2:#ffffffb8;--glass-strong:#ffffffb8;--glass-card:#ffffffe0;--glass-solid:#fff;--glass-strong-solid:#fff;--glass-card-solid:#fff;--field:#ffffffd9;--sel:#1414280f;--seg-on:#fff;--track:#14142812;--switch-off:#14142829;--sheen:linear-gradient(140deg, #ffffffb3, #fff0 45%);--rim:inset 0 1px 0 #ffffffe6;--shadow:0 1px 1px #1414280a, 0 12px 32px -14px #14142838;--shadow-lg:0 30px 80px -24px #14142859;--accent:#be1b32;--accent-fill:#be1b32;--accent-fill-ink:#fff;--primary:#131317;--primary-ink:#fff;--primary-rim:inset 0 1px 0 #ffffff29;--good:#13743a;--good-ink:#fff;--good-bg:#13743a1a;--bad:#c22a2a;--bad-ink:#fff;--bad-bg:#c22a2a14;--hard:#8a5300;--hard-bg:#b26e001a;--easy:#1a5bbf;--easy-bg:#1a5bbf14;--key-top:#fff;--key-bottom:#ececf1;--grid:#1414280e;--amb-l:80%;--amb-a:.6;--amb-b:.4;--amb-c:.35;--tab-l:60%;--tab-c:.16;--hue-ink-l:45%;--foot:#fff6;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}[data-palette=paper]{--bg:#f3ecdf;--ink:#2b241b;--ink-2:#5c5040;--ink-3:#6b5e4c;--ink-fade:#5a4e3e;--line:#462d0f1f;--line-2:#462d0f33;--glass:#fffcf499;--glass-2:#fffcf4bf;--glass-strong:#fbf7eecc;--glass-card:#fffcf5e6;--glass-solid:#fcf8f0;--glass-strong-solid:#fbf6ec;--glass-card-solid:#fffcf6;--field:#fffdf8e6;--sel:#462d0f12;--seg-on:#fffdf8;--track:#462d0f14;--switch-off:#462d0f33;--sheen:linear-gradient(140deg, #ffffff8c, #fff0 45%);--rim:inset 0 1px 0 #ffffffbf;--shadow:0 1px 1px #462d0f0d, 0 12px 32px -14px #462d0f38;--shadow-lg:0 30px 80px -24px #462d0f52;--accent:#b02e26;--accent-fill:#b02e26;--accent-fill-ink:#fff;--primary:#2b241b;--primary-ink:#fffaf0;--primary-rim:inset 0 1px 0 #ffffff24;--good:#1d6b35;--good-ink:#fff;--good-bg:#1d6b351a;--bad:#b3261e;--bad-ink:#fff;--bad-bg:#b3261e14;--hard:#7f4f00;--hard-bg:#7f4f001a;--easy:#1f56a8;--easy-bg:#1f56a814;--key-top:#fffdf8;--key-bottom:#ebe2d0;--grid:#462d0f0d;--amb-l:82%;--amb-a:.35;--amb-b:.22;--amb-c:.2;--tab-l:58%;--tab-c:.14;--hue-ink-l:42%;--foot:#fffaf073;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-contrast=high]{--ink-2:color-mix(in oklab, var(--ink) 88%, var(--bg));--ink-3:color-mix(in oklab, var(--ink) 78%, var(--bg));--ink-fade:var(--ink);--line:color-mix(in srgb, var(--ink) 24%, transparent);--line-2:color-mix(in srgb, var(--ink) 38%, transparent);--glass:var(--glass-solid);--glass-strong:var(--glass-strong-solid);--glass-card:var(--glass-card-solid);--blur:none;--amb-a:.2;--amb-b:.12;--amb-c:.1}:root[data-glass=solid]{--glass:var(--glass-solid);--glass-strong:var(--glass-strong-solid);--glass-card:var(--glass-card-solid);--blur:none}[data-primary=accent]{--primary:var(--accent-fill);--primary-ink:var(--accent-fill-ink);--primary-rim:inset 0 1px 0 #ffffff4d}[data-font=inter]{--font:"Inter Variable", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}[data-font=system]{--font:system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}[data-font=serif]{--font:ui-serif, "Noto Serif", "Times New Roman", Georgia, serif;--font-text:ui-serif, "Noto Serif", "Times New Roman", Georgia, serif}:root[data-size="90"]{font-size:90%}:root[data-size="112"]{font-size:112.5%}:root[data-size="125"]{font-size:125%}[data-round=sharp]{--round:.4}[data-round=medium]{--round:1}[data-round=round]{--round:1.5}[data-font=serif] :is(h1,h2,h3,.big,.stat dd,.face-text,.question){letter-spacing:-.01em}*,:before,:after{box-sizing:border-box}html{background-color:var(--bg);scrollbar-gutter:stable}body{min-height:100vh;color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility;margin:0;font-size:1rem;line-height:1.6}h1,h2,h3{text-wrap:balance;margin:0;font-weight:650;line-height:1.15}h1{letter-spacing:-.035em;font-size:clamp(1.9rem,1.3rem + 2vw,2.5rem);font-weight:700}h2{letter-spacing:-.02em;font-size:1.2rem}h3{letter-spacing:-.01em;font-size:1rem}p{margin:0}a{color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.icon{flex:none}.muted{color:var(--ink-2)}.faint{color:var(--ink-3)}.small{font-size:.875rem}.num{font-variant-numeric:tabular-nums}.good-text{color:var(--good)}.bad-text{color:var(--bad)}.danger-text{color:var(--bad)!important}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin:0;font-size:.75rem;font-weight:600}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.topbar,.hero-search,.badge,.stat,.subject-card,.tabs,.panel,.result,.banner,.empty,.card-form,.card-list,.option,.note-item,.history,.review,.today{background:var(--sheen), var(--glass);border:1px solid var(--line);box-shadow:var(--rim), var(--shadow)}.topbar,.hero-search,.stat,.subject-card,.tabs{-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur)}.app{min-height:100vh;position:relative}.ambient{--ambient-hue:var(--accent-h);--ambient-chroma:var(--accent-c);z-index:-1;pointer-events:none;background:radial-gradient(70% 60% at 50% 0%, oklch(var(--amb-l) calc(.2 * var(--ambient-chroma)) var(--ambient-hue) / var(--amb-a)), transparent 75%), radial-gradient(45% 45% at 0% 25%, oklch(var(--amb-l) calc(.17 * var(--ambient-chroma)) calc(var(--ambient-hue) - 35) / var(--amb-b)), transparent 70%), radial-gradient(50% 50% at 100% 90%, oklch(var(--amb-l) calc(.15 * var(--ambient-chroma)) 285 / var(--amb-c)), transparent 70%);transition:--ambient-hue .9s,--ambient-chroma .9s;position:fixed;inset:0}:root[data-ambient=off] .ambient{display:none}.ambient:after{content:"";background-image:linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);background-position:50% -1px;background-size:56px 56px;height:75vh;position:absolute;inset:0 0 auto;-webkit-mask-image:radial-gradient(80% 90% at 50% 0,#000 20%,#0000 75%);mask-image:radial-gradient(80% 90% at 50% 0,#000 20%,#0000 75%)}.topbar{top:max(10px, env(safe-area-inset-top,0px));z-index:20;width:min(992px,100% - 20px);margin:max(10px, env(safe-area-inset-top,0px)) auto 0;border-radius:calc(18px * var(--round));background:var(--sheen), var(--glass-strong);align-items:center;gap:6px;padding:6px 6px 6px 10px;display:flex;position:sticky}.brand{border-radius:calc(10px * var(--round));letter-spacing:-.015em;align-items:center;gap:10px;padding:4px 8px 4px 2px;font-size:1rem;font-weight:650;text-decoration:none;display:inline-flex}.brand-mark{background:linear-gradient(140deg,#ff8a5c,#ff4f64 55%,#e02f5c);border-radius:8px;flex:none;width:26px;height:26px;position:relative;box-shadow:inset 0 1px #ffffff73,inset 0 -1px #0000002e,0 4px 14px -4px #ff505ab3}:root[data-accent=custom] .brand-mark{background:linear-gradient(140deg, oklch(74% calc(.16 * var(--accent-c)) calc(var(--accent-h) + 19)), oklch(67% calc(.21 * var(--accent-c)) calc(var(--accent-h) - 4)) 55%, oklch(59% calc(.21 * var(--accent-c)) calc(var(--accent-h) - 12)));box-shadow:inset 0 1px 0 #ffffff73, inset 0 -1px 0 #0000002e, 0 4px 14px -4px oklch(65% calc(.2 * var(--accent-c)) var(--accent-h) / .7)}.brand-mark:before,.brand-mark:after{content:"";border-radius:2.5px;position:absolute}.brand-mark:before{background:#ffffff80;width:12px;height:9px;top:6px;left:8.5px;transform:rotate(8deg)}.brand-mark:after{background:#fff;width:14px;height:10px;top:9.5px;left:5.5px;transform:rotate(-7deg);box-shadow:0 1px 2px #78001459}.topnav{align-items:center;gap:2px;display:flex}.topnav a{border-radius:calc(11px * var(--round));color:var(--ink-2);padding:7px 12px;font-size:.925rem;font-weight:550;text-decoration:none;transition:color .2s,background-color .2s}.topnav a.active{color:var(--ink);background:var(--sel);box-shadow:var(--rim)}.top-actions{align-items:center;gap:6px;margin-left:auto;display:flex}.palette-trigger,.chip{border-radius:calc(12px * var(--round));border:1px solid var(--line);background:var(--glass-2);height:36px;box-shadow:var(--rim);color:var(--ink-2);font:inherit;cursor:pointer;align-items:center;gap:8px;padding:0 12px;font-size:.875rem;font-weight:500;transition:background-color .2s,border-color .2s,color .2s;display:inline-flex}.palette-trigger{padding-right:6px}.pt-keys{gap:3px;margin-left:6px;display:inline-flex}.page{flex-direction:column;gap:28px;max-width:960px;margin:0 auto;padding:36px 16px 88px;display:flex}.narrow{max-width:640px}.row{align-items:center;gap:8px;display:flex}.row.wrap{flex-wrap:wrap}.between{justify-content:space-between}kbd{min-width:22px;height:22px;font:600 .72rem/1 var(--font);color:var(--ink-2);background:linear-gradient(180deg, var(--key-top), var(--key-bottom));border:1px solid var(--line-2);border-radius:calc(6px * var(--round));box-shadow:var(--rim);border-bottom-width:2px;place-items:center;padding:0 6px;display:inline-grid}.btn{border-radius:calc(12px * var(--round));background:var(--primary);min-height:40px;color:var(--primary-ink);box-shadow:var(--primary-rim), 0 1px 2px #00000040, 0 8px 20px -10px #0009;font:inherit;cursor:pointer;transition:transform .18s var(--ease), box-shadow .25s var(--ease), background-color .2s, border-color .2s, opacity .2s;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:8px 16px;font-size:.925rem;font-weight:600;text-decoration:none;display:inline-flex}.btn:active:not(:disabled){transform:scale(.97)}.btn:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}.btn.ghost{background:var(--glass-2);color:var(--ink);border-color:var(--line-2);box-shadow:var(--rim)}.btn.danger,.btn.bad{background:var(--bad-bg);color:var(--bad);border-color:color-mix(in srgb, var(--bad) 35%, transparent);box-shadow:var(--rim)}.btn.good{background:var(--good-bg);color:var(--good);border-color:color-mix(in srgb, var(--good) 35%, transparent);box-shadow:var(--rim)}.btn.hard{background:var(--hard-bg);color:var(--hard);border-color:color-mix(in srgb, var(--hard) 35%, transparent);box-shadow:var(--rim)}.btn.easy{background:var(--easy-bg);color:var(--easy);border-color:color-mix(in srgb, var(--easy) 35%, transparent);box-shadow:var(--rim)}.btn.big-btn{border-radius:calc(14px * var(--round));min-height:50px;font-size:1rem}.btn kbd{min-width:20px;height:20px;color:inherit;border-color:color-mix(in srgb, currentColor 30%, transparent);box-shadow:none;opacity:.85;background:0 0}.link-btn{color:var(--accent);font:inherit;cursor:pointer;text-decoration:underline;-webkit-text-decoration-color:color-mix(in srgb, var(--accent) 40%, transparent);text-decoration-color:color-mix(in srgb, var(--accent) 40%, transparent);text-underline-offset:4px;background:0 0;border:none;align-self:flex-start;padding:0;font-weight:600}.confirm{flex-wrap:wrap;align-items:center;gap:6px;display:inline-flex}.confirm-q{color:var(--bad);font-size:.9rem;font-weight:600}:where(input:not([type=checkbox],[type=file],[type=radio])),textarea{border-radius:calc(12px * var(--round));border:1px solid var(--line-2);background:var(--field);width:100%;min-width:0;color:var(--ink);font:inherit;padding:10px 14px;transition:border-color .2s,box-shadow .2s,background-color .2s;box-shadow:inset 0 1px 2px #0000001f}input::placeholder,textarea::placeholder{color:var(--ink-3);opacity:1}input:focus,textarea:focus{border-color:color-mix(in srgb, var(--accent) 70%, transparent);box-shadow:0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent);outline:none}textarea{resize:vertical;line-height:1.6;font-family:var(--font-text)}.field{flex-direction:column;gap:6px;min-width:0;display:flex}.label{color:var(--ink-2);font-size:.875rem;font-weight:600}.toggle{color:var(--ink-2);cursor:pointer;align-items:center;gap:10px;font-size:.925rem;display:inline-flex}.toggle input{appearance:none;cursor:pointer;background:radial-gradient(circle closest-side, #fff 90%, transparent) 2px 50% / 20px 20px no-repeat, var(--switch-off);width:40px;height:24px;box-shadow:inset 0 0 0 1px var(--line), inset 0 1px 2px #00000040;transition:background-position .32s var(--spring), background-color .25s;border-radius:99px;flex:none;margin:0}.toggle+.toggle{margin-left:10px}.toggle input:checked{background-color:var(--accent);background-position:calc(100% - 2px)}.seg{border-radius:calc(13px * var(--round));background:var(--track);border:1px solid var(--line);flex-wrap:wrap;align-self:flex-start;gap:2px;padding:3px;display:inline-flex}.seg button{border-radius:calc(10px * var(--round));color:var(--ink-2);font:inherit;cursor:pointer;font-variant-numeric:tabular-nums;background:0 0;border:none;padding:7px 16px;font-size:.9rem;font-weight:600;transition:background-color .2s,color .2s,box-shadow .2s}.seg button[aria-checked=true]{background:var(--seg-on);color:var(--ink);box-shadow:var(--rim), 0 2px 8px -2px #0000004d}.seg .count{margin-left:4px}.hero{text-align:center;flex-direction:column;align-items:center;gap:14px;padding:26px 0 4px;display:flex}.badge{color:var(--ink-2);border-radius:99px;align-items:center;gap:8px;padding:5px 12px 5px 10px;font-size:.8rem;font-weight:550;display:inline-flex}.badge-dot{background:var(--accent);width:7px;height:7px;box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent), 0 0 12px var(--accent);border-radius:50%}.hero h1{letter-spacing:-.045em;max-width:15ch;padding-bottom:.06em;font-size:clamp(2.3rem,1.4rem + 3.6vw,3.6rem);line-height:1.05}@supports ((-webkit-background-clip:text) or (background-clip:text)){.hero h1{background:linear-gradient(180deg, var(--ink) 35%, var(--ink-fade));color:#0000;-webkit-background-clip:text;background-clip:text}}.hero-sub{text-wrap:balance;max-width:44ch;font-size:1.05rem}.hero-search{border-radius:calc(16px * var(--round));width:min(560px,100%);height:54px;color:var(--ink-3);font:inherit;text-align:left;cursor:text;box-shadow:var(--rim), var(--shadow), 0 0 0 0 transparent;transition:border-color .25s, box-shadow .3s var(--ease), transform .3s var(--ease);align-items:center;gap:12px;margin-top:10px;padding:0 12px 0 18px;font-size:1rem;display:flex}.hero-search .pt-label{white-space:nowrap;text-overflow:ellipsis;flex:1;min-width:0;overflow:hidden}.stats{grid-template-columns:repeat(3,1fr);gap:12px;margin:0;display:grid}.stat{border-radius:var(--radius);flex-direction:column-reverse;gap:2px;padding:16px 18px;display:flex}.stat dt{color:var(--ink-3);font-size:.8rem;font-weight:500}.stat dd{letter-spacing:-.04em;font-variant-numeric:tabular-nums;margin:0;font-size:1.85rem;font-weight:650;line-height:1.15}.stat small{color:var(--ink-3);letter-spacing:0;font-size:.55em;font-weight:500}.subject-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,260px),1fr));gap:14px;display:grid}.subject-card{isolation:isolate;border-radius:var(--radius-lg);transition:transform .4s var(--ease), border-color .25s, box-shadow .4s var(--ease);flex-direction:column;gap:6px;padding:18px;text-decoration:none;display:flex;position:relative;overflow:hidden}.subject-card:before{content:"";z-index:-1;background:radial-gradient(260px circle at var(--mx,50%) var(--my,0%), oklch(var(--tab-l) var(--tab-c) var(--hue) / .2), transparent 65%);opacity:0;transition:opacity .3s;position:absolute;inset:0}.subject-card:after{content:"";background:linear-gradient(90deg, transparent, oklch(var(--tab-l) var(--tab-c) var(--hue) / .8), transparent);height:1px;position:absolute;inset:0 12% auto}.card-top{justify-content:space-between;align-items:flex-start;margin-bottom:10px;display:flex}.go{color:var(--ink-3);opacity:0;transition:opacity .25s, transform .4s var(--ease);font-size:1.1rem;line-height:1;transform:translate(-4px,4px)}.subject-card h2{overflow-wrap:anywhere;font-size:1.15rem}.subject-icon{border-radius:calc(12px * var(--round));background:linear-gradient(140deg, oklch(68% .15 var(--hue)), oklch(48% .18 calc(var(--hue) + 35)));color:#fff;text-shadow:0 1px 2px #0000004d;width:40px;height:40px;box-shadow:inset 0 1px 0 #fff6, inset 0 -2px 4px #00000026, 0 8px 20px -8px oklch(55% .2 var(--hue) / .8);flex:none;place-items:center;font-size:1.2rem;font-weight:700;line-height:1;display:grid}.subject-icon.lg{border-radius:calc(16px * var(--round));width:54px;height:54px;font-size:1.55rem}.subject-icon.sm{border-radius:calc(8px * var(--round));width:28px;height:28px;font-size:.85rem;box-shadow:inset 0 1px #ffffff59}.meter{background:var(--track);border-radius:99px;height:5px;margin-top:8px;overflow:hidden}.meter span,.progress span{border-radius:inherit;background:linear-gradient(90deg, oklch(var(--tab-l) var(--tab-c) var(--hue,22)), oklch(var(--tab-l) var(--tab-c) calc(var(--hue,22) + 45)));height:100%;box-shadow:0 0 12px oklch(65% .2 var(--hue,22) / .55);display:block}.meter span{transform-origin:0;animation:grow .9s var(--ease) backwards;animation-delay:calc(.3s + var(--i,0) * 45ms)}.add-card{border-style:dashed;border-color:var(--line-2);box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;gap:10px}.add-card:after{content:none}.add-icon{border-radius:calc(12px * var(--round));border:1px dashed var(--line-2);width:40px;height:40px;color:var(--ink-2);place-items:center;display:grid}.add-card label{letter-spacing:-.02em;font-size:1.15rem;font-weight:650}.today{border-radius:var(--radius-lg);flex-direction:column;gap:12px;padding:18px 18px 10px;display:flex}.today-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:6px 16px;padding-bottom:8px;display:flex}.today-head h2{letter-spacing:-.03em;margin-top:2px;font-size:1.35rem}.today-list{margin:0 -8px;padding:0;list-style:none}.today-list li+li{border-top:1px solid var(--line)}.today-row{border-radius:calc(12px * var(--round));align-items:center;gap:12px;min-height:52px;padding:8px;text-decoration:none;transition:background-color .2s;display:flex}.today-name{overflow-wrap:anywhere;flex:1;min-width:0;font-weight:600}.today-meta{color:var(--ink-2);white-space:nowrap}.today-go{color:oklch(var(--hue-ink-l) .14 var(--hue));background:oklch(var(--tab-l) var(--tab-c) var(--hue) / .14);white-space:nowrap;border-radius:99px;align-items:center;gap:4px;padding:4px 10px;font-size:.8rem;font-weight:600;display:inline-flex}.subject-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;display:flex}.subject-title{align-items:center;gap:14px;min-width:0;display:flex}.subject-title h1{overflow-wrap:anywhere}.subject-head form input{max-width:320px}.swatches{flex-wrap:wrap;gap:6px;display:flex}.swatch{border:2px solid var(--bg);background:oklch(var(--tab-l) var(--tab-c) var(--hue));width:26px;height:26px;box-shadow:0 0 0 1px var(--line-2);cursor:pointer;transition:transform .2s var(--spring);border-radius:50%}.swatch[aria-checked=true]{box-shadow:0 0 0 2px var(--ink);transform:scale(1.1)}.tabs{border-radius:calc(15px * var(--round));scrollbar-width:none;gap:4px;width:fit-content;max-width:100%;margin:22px 0 26px;padding:4px;display:flex;overflow-x:auto}.tabs a{border-radius:calc(11px * var(--round));color:var(--ink-3);flex:none;align-items:center;gap:7px;padding:8px 14px;font-size:.925rem;font-weight:600;text-decoration:none;transition:color .2s,background-color .25s,box-shadow .25s;display:inline-flex}.tabs a.active{color:var(--ink);background:var(--seg-on);box-shadow:var(--rim), 0 2px 10px -2px #0000004d}.tabs a.active .icon{color:oklch(var(--hue-ink-l) .15 var(--hue))}.count{background:var(--track);min-width:20px;color:var(--ink-2);text-align:center;font-variant-numeric:tabular-nums;border-radius:99px;padding:1px 6px;font-size:.72rem;font-weight:600}.empty{border-style:dashed;border-color:var(--line-2);border-radius:var(--radius-lg);flex-direction:column;align-items:flex-start;gap:10px;padding:32px 26px;display:flex}.study{flex-direction:column;gap:18px;display:flex}.progress{background:var(--track);border-radius:99px;height:6px;overflow:hidden}.progress span{transition:width .5s var(--ease)}.flashcard{isolation:isolate;aspect-ratio:5/3;border-radius:calc(24px * var(--round));width:100%;max-width:640px;max-height:60vh;font:inherit;color:inherit;cursor:pointer;perspective:1600px;background:0 0;border:none;margin:8px auto 0;padding:0;position:relative}.flashcard:before{content:"";z-index:-1;background:radial-gradient(closest-side, oklch(62% .2 var(--hue) / .35), transparent);border-radius:50%;position:absolute;inset:10% 4% -10%}.card-inner{transform-style:preserve-3d;animation:card-in .5s var(--ease) backwards;position:absolute;inset:0}.face{border-radius:calc(24px * var(--round));background:var(--sheen), var(--glass-card);border:1px solid var(--line);box-shadow:var(--rim), var(--shadow-lg);backface-visibility:hidden;transition:transform .7s var(--ease);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:52px 28px 48px;display:flex;position:absolute;inset:0;overflow:hidden}.face.back{background:var(--sheen), radial-gradient(120% 90% at 50% 0%, oklch(var(--tab-l) var(--tab-c) var(--hue) / .16), transparent 60%), var(--glass-card);transform:rotateY(180deg)}.flashcard.is-flipped .front{transform:rotateY(-180deg)}.flashcard.is-flipped .back{transform:rotateY(0)}.face-label{border:1px solid var(--line);background:var(--glass-2);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);border-radius:99px;padding:3px 10px;font-size:.7rem;font-weight:600;position:absolute;top:16px;left:18px}.back .face-label{color:oklch(var(--hue-ink-l) .14 var(--hue))}.face-text{letter-spacing:-.025em;text-align:center;overflow-wrap:anywhere;max-height:100%;font-size:clamp(1.4rem,4.6vw,2.3rem);font-weight:650;line-height:1.25;overflow:auto}.hint{text-align:center;color:var(--ink-3);padding:0 16px;font-size:.8rem;position:absolute;bottom:16px}.answer-row{grid-template-columns:repeat(4,1fr);gap:10px;width:100%;max-width:640px;margin:0 auto;display:grid}.answer-row .btn{border-radius:calc(16px * var(--round));min-height:60px;font-size:1rem}.answer-row .reveal{grid-column:1/-1}.btn.grade{flex-direction:column;gap:2px;padding:8px 6px;line-height:1.2}.grade-label{align-items:center;gap:6px;display:inline-flex}.grade-time{font-size:.78rem;font-weight:500}.grade-help{text-align:center;text-wrap:balance;max-width:640px;margin:-6px auto 0}.face-note{max-width:46ch;max-height:30%;color:var(--ink-2);text-align:center;overflow-wrap:anywhere;font-size:.95rem;line-height:1.5;overflow:auto}.result{text-align:center;border-radius:var(--radius-lg);flex-direction:column;align-items:center;gap:10px;padding:40px 20px;display:flex}.big{letter-spacing:-.045em;font-size:clamp(2.4rem,8vw,3.6rem);font-weight:700;line-height:1.05}.big small{color:var(--ink-3);letter-spacing:-.01em;font-size:.42em;font-weight:500}.result .row{justify-content:center;margin-top:6px}.question{overflow-wrap:anywhere;font-size:clamp(1.35rem,1rem + 1.6vw,1.8rem)}.options{gap:10px;display:grid}.option{text-align:left;width:100%;min-height:58px;font:inherit;color:var(--ink);border-radius:calc(16px * var(--round));cursor:pointer;overflow-wrap:anywhere;transition:border-color .2s, background-color .2s, box-shadow .3s var(--ease), opacity .25s;animation:rise .45s var(--ease) backwards;animation-delay:calc(80ms + var(--i,0) * 45ms);align-items:center;gap:14px;padding:12px 16px;display:flex}.option:disabled{opacity:.45;cursor:default}.opt-key{border-radius:calc(8px * var(--round));flex:none;min-width:30px;height:30px;font-size:.85rem}.option.is-correct{opacity:1;border-color:color-mix(in srgb, var(--good) 55%, transparent);background:var(--sheen), var(--good-bg);box-shadow:var(--rim), 0 12px 32px -14px color-mix(in srgb, var(--good) 60%, transparent);animation:pop .45s var(--spring)}.option.is-wrong{border-color:color-mix(in srgb, var(--bad) 55%, transparent);background:var(--sheen), var(--bad-bg);animation:shake .45s var(--ease)}.option.is-correct .opt-key{background:var(--good);color:var(--good-ink);border-color:#0000}.option.is-wrong .opt-key{background:var(--bad);color:var(--bad-ink);border-color:#0000}.feedback{animation:rise .35s var(--ease) backwards;flex-direction:column;gap:12px;padding-top:4px;display:flex}.explain{border-radius:calc(14px * var(--round));border:1px solid var(--line);background:var(--glass-2);overflow-wrap:anywhere;flex-direction:column;gap:4px;padding:12px 14px;display:flex}.review .explain{margin-top:6px;padding:8px 12px;font-size:.925rem}.explain-label{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin-right:8px;font-size:.72rem;font-weight:600;display:inline-block}.history ul,.review ul,.note-list,.card-list{margin:0;padding:0;list-style:none}.history,.review{border-radius:var(--radius-lg);flex-direction:column;gap:4px;margin-top:8px;padding:16px 18px 8px;display:flex}.history li{color:var(--ink-2);justify-content:space-between;padding:9px 0;display:flex}.history li+li,.review li+li{border-top:1px solid var(--line)}.review{gap:8px}.review li{overflow-wrap:anywhere;flex-direction:column;gap:2px;padding:12px 0;display:flex}.search{max-width:360px}.note-list{grid-template-columns:repeat(auto-fill,minmax(min(100%,260px),1fr));gap:12px;margin-top:16px;display:grid}.note-item{border-radius:var(--radius);height:100%;transition:border-color .2s, transform .35s var(--ease);flex-direction:column;gap:6px;padding:16px 18px;text-decoration:none;display:flex}.note-item h2{font-size:1rem}.clamp{-webkit-line-clamp:3;white-space:pre-line;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.editor{flex-direction:column;gap:12px;display:flex}.note-title{letter-spacing:-.03em;box-shadow:none;background:0 0;border:none;padding-inline:0;font-size:clamp(1.5rem,1.1rem + 1.5vw,2rem);font-weight:700}.note-title:focus{box-shadow:inset 0 -2px 0 color-mix(in srgb, var(--accent) 60%, transparent)}.note-body{border-radius:var(--radius-lg);background:var(--sheen), var(--glass-card);min-height:55vh;box-shadow:var(--rim), var(--shadow);padding:18px 20px;line-height:1.75}.cards-page{flex-direction:column;gap:16px;display:flex}.card-form{border-radius:var(--radius-lg);grid-template-columns:1fr 1fr 1fr auto;align-items:end;gap:12px;padding:16px;display:grid}.bulk{flex-direction:column;gap:8px;display:flex}.section-title{margin-top:8px}.card-list{border-radius:var(--radius-lg);flex-direction:column;padding:2px 18px;display:flex}.card-list li+li{border-top:1px solid var(--line)}.card-row{grid-template-columns:1fr auto auto;align-items:center;gap:12px;padding:12px 0;display:grid}.card-text{overflow-wrap:anywhere;flex-direction:column;min-width:0;display:flex}.card-edit{grid-template-columns:1fr 1fr 1fr auto;gap:8px;padding:12px 0;display:grid}.box-pill{border:1px solid var(--line);background:var(--track);color:var(--ink-2);white-space:nowrap;border-radius:99px;padding:3px 9px;font-size:.75rem;font-weight:600}.box-pill.due{background:color-mix(in srgb, var(--accent) 12%, transparent);color:var(--accent);border-color:color-mix(in srgb, var(--accent) 30%, transparent)}.box-pill.mastered{background:var(--good-bg);color:var(--good);border-color:color-mix(in srgb, var(--good) 30%, transparent)}.settings{flex-direction:column;gap:16px;display:flex}.panel{border-radius:var(--radius-lg);flex-direction:column;gap:10px;padding:22px;display:flex}.file-btn{cursor:pointer}.ap-title{margin-top:12px}.ap-row{grid-template-columns:9.5rem minmax(0,1fr);align-items:center;gap:8px 16px;display:grid}.ap-label{color:var(--ink-2);font-size:.9rem;font-weight:600}.ap-row .seg{justify-self:start}.appearance .toggle+.toggle{margin-left:0}.ap-preview{border-radius:var(--radius);border:1px solid var(--line);background:var(--sheen), var(--glass-card);box-shadow:var(--rim), var(--shadow);flex-direction:column;gap:8px;padding:16px 18px;display:flex}.ap-q{letter-spacing:-.02em;font-size:1.35rem;font-weight:650;line-height:1.2}.ap-preview .row{gap:10px 12px;margin-top:4px}.ap-preview .btn{pointer-events:none;min-height:36px;padding:6px 14px}.ap-preview .link-btn{align-self:center}.tiles{grid-template-columns:repeat(auto-fill,minmax(min(100%,108px),1fr));gap:10px;display:grid}.tiles>button{border-radius:calc(16px * var(--round));border:1px solid var(--line);background:var(--glass-2);color:var(--ink-2);font:inherit;cursor:pointer;transition:border-color .2s, box-shadow .2s, color .2s, transform .25s var(--ease);flex-direction:column;gap:6px;padding:5px 5px 7px;font-size:.85rem;font-weight:600;display:flex}.tiles>button[aria-checked=true]{color:var(--ink);border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}.tile-art{border-radius:calc(11px * var(--round));background:radial-gradient(90% 100% at 50% 0%, oklch(var(--amb-l) calc(.2 * var(--accent-c)) var(--accent-h) / var(--amb-a)), transparent 75%), var(--bg);height:62px;box-shadow:inset 0 0 0 1px var(--line);font-family:var(--font);color:var(--ink);text-align:left;display:block;position:relative;overflow:hidden}.art-card{border-radius:calc(9px * var(--round));border:1px solid var(--line);background:var(--sheen), var(--glass-card);box-shadow:var(--rim);flex-direction:column;gap:5px;padding:8px 9px;display:flex;position:absolute;inset:12px 10px -6px}.art-line{background:var(--ink);border-radius:99px;width:72%;height:5px;display:block}.art-line.short{background:var(--ink-3);width:46%}.art-card>.art-line:first-child{width:min(72%,100% - 22px)}.art-pill{background:var(--accent);border-radius:99px;width:16px;height:8px;position:absolute;top:8px;right:8px}.art-aa{letter-spacing:-.01em;font-size:1.05rem;font-weight:650;line-height:1}.art-foot{justify-content:space-between;align-items:center;gap:5px;display:flex}.art-foot .art-line{background:var(--ink-3);flex:0 50%;width:auto}.art-btn{border-radius:calc(4px * var(--round));background:var(--primary);width:26px;height:12px;box-shadow:0 0 0 2px color-mix(in srgb, var(--accent) 45%, transparent);flex:none}.tile-name{line-height:1.25}.accents{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.accent-list{display:contents}.accent-list button,.accent-custom input{border:2px solid var(--bg);width:30px;height:30px;box-shadow:0 0 0 1px var(--line-2);cursor:pointer;transition:transform .2s var(--spring), box-shadow .2s;border-radius:50%;padding:0}.accent-list button{background:0 0;display:grid}.accent-dot{background:var(--sw);border-radius:50%}.accent-list button[aria-checked=true],.accent-custom.on input{box-shadow:0 0 0 2px var(--ink);transform:scale(1.1)}.accent-custom{display:inline-flex}.accent-custom input{appearance:none;background:conic-gradient(from 90deg,#ff6363,#f5c518,#3ecf6e,#38bdf8,#a78bfa,#f472b6,#ff6363)}.accent-custom input::-webkit-color-swatch-wrapper{padding:0}.accent-custom input::-webkit-color-swatch{border:none;border-radius:50%}.accent-custom input::-moz-color-swatch{border:none;border-radius:50%}.accent-custom:not(.on) input::-webkit-color-swatch{opacity:0}.accent-custom:not(.on) input::-moz-color-swatch{opacity:0}.accent-custom input:focus{border-color:var(--bg);box-shadow:0 0 0 1px var(--line-2)}.accent-custom input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.steps{flex-direction:column;gap:4px;margin:0;padding-left:1.3em;display:flex}.more-btn{align-self:center}.banner{border-radius:var(--radius);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 16px;padding:14px 16px;display:flex}.banner p{flex:320px}.banner.bad{border-color:color-mix(in srgb, var(--bad) 45%, transparent);background:var(--sheen), var(--bad-bg), var(--glass)}.banner.info{border-color:color-mix(in srgb, var(--accent) 35%, var(--line))}.boot{min-height:60vh;color:var(--ink-2);opacity:0;justify-content:center;align-items:center;gap:12px;font-weight:600;animation:.25s .5s forwards fade;display:flex}.save-state{color:var(--ink-3)}.save-state.error,.save-state.memory,.save-state.reload{color:var(--bad);font-weight:600}.palette{width:min(640px,100% - 20px);max-width:none;max-height:min(560px,100dvh - 24px);color:var(--ink);border:1px solid var(--line-2);border-radius:calc(22px * var(--round));background:var(--sheen), var(--glass-strong);box-shadow:var(--rim), var(--shadow-lg);-webkit-backdrop-filter:blur(28px)saturate(170%);backdrop-filter:blur(28px)saturate(170%);margin:max(12px,12vh) auto auto;padding:0;overflow:hidden}.palette[open]{animation:pal-in .26s var(--ease) backwards}.palette::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#04040880;animation:.25s backwards fade}:root[data-palette=oled] .palette::backdrop{background:#0009}:root[data-palette=dim] .palette::backdrop{background:#0a0c1080}:root[data-palette=light] .palette::backdrop{background:#e6e6ee73}:root[data-palette=paper] .palette::backdrop{background:#ebe2d280}:root:is([data-glass=solid],[data-contrast=high]) .palette{-webkit-backdrop-filter:none;backdrop-filter:none}:root:has(.palette[open]){overflow:hidden}.pal{max-height:inherit;flex-direction:column;display:flex}.pal-search{border-bottom:1px solid var(--line);color:var(--ink-3);align-items:center;gap:12px;padding:12px 12px 12px 18px;display:flex}.pal-search input{box-shadow:none;background:0 0;border:none;border-radius:0;flex:1;padding:8px 0;font-size:1.1rem}.pal-search input:focus{box-shadow:none}.pal-close{border-radius:calc(8px * var(--round));border:1px solid var(--line-2);background:linear-gradient(180deg, var(--key-top), var(--key-bottom));color:var(--ink-2);font:600 .75rem/1.4 var(--font);cursor:pointer;border-bottom-width:2px;padding:4px 9px}.on-touch{display:none}.pal-list{overscroll-behavior:contain;flex:1;padding:4px 8px 8px;overflow-y:auto}.pal-group{color:var(--ink-3);padding:12px 10px 6px;font-size:.72rem;font-weight:600}.pal-item{border-radius:calc(12px * var(--round));cursor:pointer;align-items:center;gap:12px;min-height:46px;padding:6px 10px;display:flex}.pal-item[aria-selected=true]{background:var(--sel);box-shadow:var(--rim)}.pal-icon{border-radius:calc(8px * var(--round));border:1px solid var(--line);background:var(--glass-2);width:28px;height:28px;color:var(--ink-2);flex:none;place-items:center;display:grid}.pal-icon.tinted{color:oklch(var(--hue-ink-l) .15 var(--hue));background:oklch(var(--tab-l) var(--tab-c) var(--hue) / .14)}.pal-title,.pal-sub{white-space:nowrap;text-overflow:ellipsis;min-width:0;overflow:hidden}.pal-title{font-weight:550}.pal-sub{color:var(--ink-3);flex:1;font-size:.85rem}.pal-tag{border:1px solid var(--line);background:var(--track);color:var(--ink-2);border-radius:99px;flex:none;margin-left:auto;padding:2px 8px;font-size:.72rem;font-weight:600}.pal-empty{text-align:center;color:var(--ink-2);padding:32px 20px}.pal-foot{border-top:1px solid var(--line);background:var(--foot);color:var(--ink-3);justify-content:space-between;align-items:center;gap:12px;padding:9px 14px;font-size:.78rem;display:flex}.pal-brand{color:var(--ink-2);align-items:center;gap:6px;font-weight:600;display:flex}.pal-brand .brand-mark{margin:-4px;transform:scale(.72)}.pal-keys{gap:14px;display:flex}.pal-keys>span{align-items:center;gap:4px;display:inline-flex}@keyframes rise{0%{opacity:0;transform:translateY(12px)}}@keyframes card-in{0%{opacity:0;transform:translateY(16px)scale(.97)}}@keyframes pal-in{0%{opacity:0;transform:translateY(-10px)scale(.98)}}@keyframes fade{0%{opacity:0}to{opacity:1}}@keyframes grow{0%{transform:scaleX(0)}}@keyframes pop{40%{transform:scale(1.025)}}@keyframes shake{20%{transform:translate(-6px)}40%{transform:translate(5px)}60%{transform:translate(-3px)}80%{transform:translate(2px)}}.hero>*,.stat,.subject-card,.subject-page>*,.settings>*,.page>.banner,.page>.empty,.page>.today{animation:rise .5s var(--ease) backwards}.page>.today{animation-delay:.12s}:is(.hero,.subject-page,.settings)>:nth-child(2){animation-delay:50ms}:is(.hero,.subject-page,.settings)>:nth-child(3){animation-delay:.1s}:is(.hero,.subject-page,.settings)>:nth-child(4){animation-delay:.15s}:is(.hero,.settings)>:nth-child(5){animation-delay:.2s}:is(.hero,.settings)>:nth-child(n+6){animation-delay:.25s}.stat{animation-delay:.14s}.stat+.stat{animation-delay:.18s}.stat+.stat+.stat{animation-delay:.22s}.subject-card{animation-delay:calc(.22s + var(--i,0) * 45ms)}@media (hover:hover){.topnav a:hover{color:var(--ink);background:var(--sel)}.palette-trigger:hover,.chip:hover{color:var(--ink);border-color:var(--line-2);background:var(--sel)}.btn:hover:not(:disabled){transform:translateY(-1px)}.btn:active:not(:disabled){transform:scale(.97)}.btn.ghost:hover:not(:disabled){background:var(--sel)}.hero-search:hover{border-color:var(--line-2);transform:translateY(-1px)}a.subject-card:hover{border-color:var(--line-2);box-shadow:var(--rim), var(--shadow), 0 22px 44px -22px oklch(60% .18 var(--hue) / .6);transform:translateY(-4px)}a.subject-card:hover:before{opacity:1}a.subject-card:hover .go{opacity:1;transform:none}.tabs a:hover{color:var(--ink)}.today-row:hover{background:var(--sel)}.option:hover:not(:disabled,.is-correct,.is-wrong){border-color:var(--line-2);background:var(--sheen), var(--sel)}.note-item:hover{border-color:var(--line-2);transform:translateY(-2px)}.link-btn:hover{text-decoration-color:currentColor}.tiles>button:hover{border-color:var(--line-2);color:var(--ink);transform:translateY(-2px)}.accent-list button:hover,.accent-custom input:hover{transform:scale(1.1)}}@media (hover:none){.pt-keys,.on-keyboard,.pal-foot,.answer-row kbd,.feedback kbd{display:none}.on-touch{display:inline}}@media (width<=640px){.page{gap:22px;padding:26px 14px 72px}.topbar{width:calc(100% - 16px);padding-left:8px}.topnav a{padding:7px 9px;font-size:.875rem}.palette-trigger{justify-content:center;width:36px;padding:0}.palette-trigger .pt-label{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.pt-keys,.chip .chip-label{display:none}.chip{justify-content:center;width:36px;padding:0}.hero{padding-top:12px}.hero-search{height:50px}.stats{gap:8px}.stat{padding:12px 14px}.stat dd{font-size:1.45rem}.card-form,.card-edit{grid-template-columns:1fr}.card-row{grid-template-columns:1fr auto}.card-row>.row{grid-column:1/-1}.flashcard{aspect-ratio:4/3}.answer-row{gap:6px}.btn.grade{font-size:.95rem}.today-row{flex-wrap:wrap;row-gap:2px}.today-meta{flex-basis:100%;order:3;padding-left:40px}.face{padding:48px 18px 44px}.tabs{width:100%}.tabs a{padding:8px 11px}.ap-row{grid-template-columns:minmax(0,1fr);gap:8px}.tiles{grid-template-columns:repeat(auto-fill,minmax(min(100%,88px),1fr));gap:8px}.appearance .seg button{padding-inline:12px}.palette{margin-top:max(10px, env(safe-area-inset-top,0px))}}@media (width<=420px){.brand-name{display:none}.brand{padding-right:2px}.tabs{gap:2px}.tabs a{flex:1 0 auto;justify-content:center;gap:5px;padding:8px;font-size:.85rem}.tabs a .icon{display:none}}@media (width<=380px){.tabs .count{display:none}}@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){:root,[data-palette]{--glass:var(--glass-solid);--glass-strong:var(--glass-strong-solid)}}@media (prefers-reduced-transparency:reduce){:root,[data-palette]{--glass:var(--glass-solid);--glass-strong:var(--glass-strong-solid);--glass-card:var(--glass-card-solid)}}@media (prefers-reduced-motion:reduce){*,:before,:after,.palette::backdrop{transition:none!important;animation:none!important}.boot{opacity:1}}:root[data-motion=reduce] *,:root[data-motion=reduce] :before,:root[data-motion=reduce] :after,:root[data-motion=reduce] .palette::backdrop{transition:none!important;animation:none!important}:root[data-motion=reduce] .boot{opacity:1}