@font-face{font-family:Onest Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/onest-cyrillic-ext-wght-normal-DOFToQv1.woff2)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Onest Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/onest-cyrillic-wght-normal-DayYxulF.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Onest Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/onest-math-wght-normal-Bl4ZGkZl.woff2)format("woff2-variations");unicode-range:U+302-303,U+305,U+307-308,U+310,U+312,U+315,U+31A,U+326-327,U+32C,U+32F-330,U+332-333,U+338,U+33A,U+346,U+34D,U+391-3A1,U+3A3-3A9,U+3B1-3C9,U+3D1,U+3D5-3D6,U+3F0-3F1,U+3F4-3F5,U+2016-2017,U+2034-2038,U+203C,U+2040,U+2043,U+2047,U+2050,U+2057,U+205F,U+2070-2071,U+2074-208E,U+2090-209C,U+20D0-20DC,U+20E1,U+20E5-20EF,U+2100-2112,U+2114-2115,U+2117-2121,U+2123-214F,U+2190,U+2192,U+2194-21AE,U+21B0-21E5,U+21F1-21F2,U+21F4-2211,U+2213-2214,U+2216-22FF,U+2308-230B,U+2310,U+2319,U+231C-2321,U+2336-237A,U+237C,U+2395,U+239B-23B7,U+23D0,U+23DC-23E1,U+2474-2475,U+25AF,U+25B3,U+25B7,U+25BD,U+25C1,U+25CA,U+25CC,U+25FB,U+266D-266F,U+27C0-27FF,U+2900-2AFF,U+2B0E-2B11,U+2B30-2B4C,U+2BFE,U+3030,U+FF5B,U+FF5D,U+1D400-1D7FF,U+1EE??}@font-face{font-family:Onest Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/onest-symbols-wght-normal-DxQzqQfC.woff2)format("woff2-variations");unicode-range:U+1-C,U+E-1F,U+7F-9F,U+20DD-20E0,U+20E2-20E4,U+2150-218F,U+2190,U+2192,U+2194-2199,U+21AF,U+21E6-21F0,U+21F3,U+2218-2219,U+2299,U+22C4-22C6,U+2300-243F,U+2440-244A,U+2460-24FF,U+25A0-27BF,U+28??,U+2921-2922,U+2981,U+29BF,U+29EB,U+2B??,U+4DC0-4DFF,U+FFF9-FFFB,U+10140-1018E,U+10190-1019C,U+101A0,U+101D0-101FD,U+102E0-102FB,U+10E60-10E7E,U+1D2C0-1D2D3,U+1D2E0-1D37F,U+1F0??,U+1F100-1F1AD,U+1F1E6-1F1FF,U+1F30D-1F30F,U+1F315,U+1F31C,U+1F31E,U+1F320-1F32C,U+1F336,U+1F378,U+1F37D,U+1F382,U+1F393-1F39F,U+1F3A7-1F3A8,U+1F3AC-1F3AF,U+1F3C2,U+1F3C4-1F3C6,U+1F3CA-1F3CE,U+1F3D4-1F3E0,U+1F3ED,U+1F3F1-1F3F3,U+1F3F5-1F3F7,U+1F408,U+1F415,U+1F41F,U+1F426,U+1F43F,U+1F441-1F442,U+1F444,U+1F446-1F449,U+1F44C-1F44E,U+1F453,U+1F46A,U+1F47D,U+1F4A3,U+1F4B0,U+1F4B3,U+1F4B9,U+1F4BB,U+1F4BF,U+1F4C8-1F4CB,U+1F4D6,U+1F4DA,U+1F4DF,U+1F4E3-1F4E6,U+1F4EA-1F4ED,U+1F4F7,U+1F4F9-1F4FB,U+1F4FD-1F4FE,U+1F503,U+1F507-1F50B,U+1F50D,U+1F512-1F513,U+1F53E-1F54A,U+1F54F-1F5FA,U+1F610,U+1F650-1F67F,U+1F687,U+1F68D,U+1F691,U+1F694,U+1F698,U+1F6AD,U+1F6B2,U+1F6B9-1F6BA,U+1F6BC,U+1F6C6-1F6CF,U+1F6D3-1F6D7,U+1F6E0-1F6EA,U+1F6F0-1F6F3,U+1F6F7-1F6FC,U+1F7??,U+1F800-1F80B,U+1F810-1F847,U+1F850-1F859,U+1F860-1F887,U+1F890-1F8AD,U+1F8B0-1F8BB,U+1F8C0-1F8C1,U+1F900-1F90B,U+1F93B,U+1F946,U+1F984,U+1F996,U+1F9E9,U+1FA00-1FA6F,U+1FA70-1FA7C,U+1FA80-1FA89,U+1FA8F-1FAC6,U+1FACE-1FADC,U+1FADF-1FAE9,U+1FAF0-1FAF8,U+1FB??}@font-face{font-family:Onest Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/onest-vietnamese-wght-normal-BBxOatbv.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:Onest Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/onest-latin-ext-wght-normal-QAhDxQuo.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:Onest Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/onest-latin-wght-normal-Dun_Rd-l.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}:root{--accent:#3390ec;--on-accent:#fff;--accent-ink:var(--accent);--ease-out:cubic-bezier(.22, 1, .36, 1);--spring:cubic-bezier(.34, 1.56, .64, 1);--radius:14px;--font-scale:1;--wallpaper:none;--pad:16px;--row-pad:13px;--nav-h:62px;--safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);--danger:#e5484d;--ok:#2fb36d;font-size:calc(16px * var(--font-scale));--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;font-family:Onest Variable,-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,Helvetica Neue,Noto Sans,Arial,sans-serif}:root[data-theme=light]{--bg:#f1f3f6;--surface:#fff;--surface-2:#eef0f4;--text:#14171c;--muted:#6b7482;--border:#e1e5eb;--shadow:0 1px 2px #14171c0f, 0 4px 16px #14171c0d;--scrim:#0a0c1066;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--bg:#0f1115;--surface:#181b21;--surface-2:#21252d;--text:#eceef2;--muted:#8d95a3;--border:#272b34;--shadow:0 1px 2px #0000004d, 0 4px 16px #00000040;--scrim:#0000008c}:root[data-theme=black]{--bg:#000;--surface:#0d0d0f;--surface-2:#17171a;--text:#f2f3f5;--muted:#8a8f99;--border:#1d1d21;--shadow:none;--scrim:#000000b3}:root[data-density=compact]{--pad:12px;--row-pad:9px}:root[data-density=roomy]{--pad:20px;--row-pad:17px}:root[data-motion=off] *,:root[data-motion=off] :before,:root[data-motion=off] :after{transition-duration:.001ms!important;animation-duration:.001ms!important}*,:before,:after{box-sizing:border-box}html,body{min-height:100%;margin:0}html{background:var(--bg);overscroll-behavior-y:none}*{scrollbar-width:none;-ms-overflow-style:none}::-webkit-scrollbar{width:0;height:0;display:none}textarea{resize:none;field-sizing:content;min-height:3.2em;max-height:40vh}body{color:var(--text);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;overscroll-behavior-y:none;background:0 0;line-height:1.4}h1,h2,h3,p{margin:0}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.muted{color:var(--muted)}.center-text{text-align:center}.shell{min-height:100dvh}.content{max-width:720px;padding:calc(var(--safe-top) + 4px) var(--pad) calc(var(--nav-h) + var(--safe-bottom) + 28px);margin:0 auto}.nav{z-index:20;height:calc(var(--nav-h) + var(--safe-bottom));padding:6px 8px var(--safe-bottom);background:color-mix(in srgb, var(--surface) 97%, transparent);-webkit-backdrop-filter:blur(20px)saturate(1.4);border-top:1px solid var(--border);justify-content:space-around;display:flex;position:fixed;bottom:0;left:0;right:0}.nav-brand{display:none}.nav-item{color:var(--muted);border-radius:calc(var(--radius) - 2px);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:3px;font-size:.68rem;font-weight:500;transition:color .15s;display:flex}.nav-item.active{color:var(--accent-ink)}@media (width>=860px){.nav{width:230px;height:100dvh;padding:calc(var(--safe-top) + 20px) 12px 20px;border-top:0;border-right:1px solid var(--border);flex-direction:column;justify-content:flex-start;gap:4px;top:0;bottom:auto;right:auto}.nav-brand{padding:4px 12px 18px;font-size:1.1rem;font-weight:700;display:block}.nav-item{flex-direction:row;flex:none;justify-content:flex-start;gap:12px;padding:11px 12px;font-size:.95rem}.nav-item.active{background:color-mix(in srgb, var(--accent-ink) 14%, transparent)}.content{max-width:none;padding:calc(var(--safe-top) + 4px) max(var(--pad), calc((100vw - 230px - 680px) / 2)) 40px;margin:0 0 0 230px}}.page-header{z-index:10;min-height:52px;margin:0 calc(var(--pad) * -1) 8px;padding:calc(var(--safe-top) * 0) var(--pad);background:color-mix(in srgb, var(--bg) 82%, transparent);-webkit-backdrop-filter:blur(14px);grid-template-columns:1fr auto 1fr;align-items:center;display:grid;position:sticky;top:0}.page-header h1{text-align:center;text-overflow:ellipsis;white-space:nowrap;max-width:52vw;font-size:1.05rem;font-weight:650;overflow:hidden}.ph-side{align-items:center;gap:2px;min-width:0;display:flex}.ph-side.right{justify-content:flex-end}@media (width>=860px){.page-header{-webkit-backdrop-filter:none;background:0 0;margin:0 0 8px;padding:0}}.icon-btn{width:40px;height:40px;color:var(--accent-ink);background:0 0;border:0;border-radius:50%;place-items:center;display:inline-grid}.icon-btn:active{background:var(--surface-2)}.icon-btn.danger{color:var(--danger)}.btn{border-radius:var(--radius);background:var(--surface);min-height:46px;color:var(--text);box-shadow:inset 0 0 0 1px var(--border);border:0;justify-content:center;align-items:center;gap:8px;padding:0 20px;font-weight:600;transition:transform .1s,opacity .15s;display:inline-flex}.btn:disabled{opacity:.5;cursor:default}.btn.primary{background:var(--accent);color:var(--on-accent);box-shadow:none}.btn.danger{color:var(--danger)}.btn.block{width:100%;display:flex}.btn-text{color:var(--accent-ink);background:0 0;border:0;padding:8px;font-weight:600}.stack{flex-direction:column;gap:14px;display:flex}.row2{grid-template-columns:1fr 1fr;gap:12px;display:grid}.field{flex-direction:column;gap:6px;display:flex}.field>span{color:var(--muted);font-size:.8rem;font-weight:600}input:not([type=range]):not([type=color]),select,textarea{background:var(--surface-2);border-radius:calc(var(--radius) - 2px);border:1px solid #0000;width:100%;min-height:46px;padding:11px 14px;font-size:1rem;transition:border-color .15s}textarea{min-height:70px}input:focus,select:focus,textarea:focus{border-color:var(--accent-ink);outline:0}input[type=range]{width:100%;accent-color:var(--accent-ink)}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1px solid var(--border);background:var(--surface-2);color:var(--muted);border-radius:999px;padding:8px 14px;font-size:.88rem;font-weight:500}.chip.on{background:color-mix(in srgb, var(--accent-ink) 16%, transparent);border-color:color-mix(in srgb, var(--accent) 50%, transparent);color:var(--accent-ink)}.chip:disabled{opacity:.75;cursor:default}.error-note{color:var(--danger);font-size:.9rem}.ok-note{color:var(--ok);font-size:.9rem}.list{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);margin:0 0 16px;padding:0;list-style:none;overflow:hidden}.list li+li{border-top:1px solid var(--border)}.row{width:100%;padding:var(--row-pad) var(--pad);text-align:left;color:inherit;background:0 0;border:0;align-items:center;gap:12px;display:flex}.row:active{background:var(--surface-2)}.row-main{flex:1;min-width:0}.row-title{overflow-wrap:anywhere;font-weight:600}.row-sub{color:var(--muted);overflow-wrap:anywhere;font-size:.9rem}.row-icon{border-radius:calc(var(--radius) - 6px);background:color-mix(in srgb, var(--accent-ink) 16%, transparent);width:34px;height:34px;color:var(--accent-ink);place-items:center;display:grid}.reading{font-size:.85rem;font-weight:400}.deck-meta{text-align:center;margin:-4px 0 14px;font-size:.88rem}.empty{text-align:center;flex-direction:column;align-items:center;gap:10px;padding:56px 20px;display:flex}.empty h2{font-size:1.1rem}.empty .btn{margin-top:8px}.empty-icon{background:color-mix(in srgb, var(--accent-ink) 14%, transparent);width:72px;height:72px;color:var(--accent-ink);border-radius:50%;place-items:center;margin-bottom:6px;display:grid}.center,.center-screen{place-items:center;padding:48px 0;display:grid}.center-screen{min-height:100dvh}.spinner{border:3px solid var(--surface-2);border-top-color:var(--accent-ink);border-radius:50%;width:28px;height:28px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.auth{min-height:100dvh;padding:24px var(--pad);place-content:center;justify-items:center;gap:12px;display:grid}.auth-card{text-align:center;background:var(--surface);border-radius:calc(var(--radius) + 6px);width:min(100%,380px);box-shadow:var(--shadow);flex-direction:column;gap:14px;padding:28px 24px;display:flex}.auth-card form{text-align:left;margin-top:6px}.auth-card h1{font-size:1.5rem}.auth-logo img{border-radius:16px}.auth-logo{margin:0 auto}.auth-lang{color:var(--muted)}.profile{align-items:center;gap:14px;padding:14px 4px 18px;display:flex}.avatar{background:var(--accent);width:56px;height:56px;color:var(--on-accent);border-radius:50%;place-items:center;font-size:1.5rem;font-weight:700;display:grid}.profile-name{font-size:1.15rem;font-weight:650}.group{margin-bottom:16px}.group-title{text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin:0 4px 8px;font-size:.78rem;font-weight:650}.group-body{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:var(--pad);flex-direction:column;gap:12px;display:flex}.setting{flex-direction:column;gap:8px;display:flex}.setting.inline{flex-direction:row;justify-content:space-between;align-items:center}.setting-label{font-weight:550}.kv{justify-content:space-between;gap:12px;display:flex}.user-row{align-items:center;gap:4px;display:flex}.segmented{background:var(--surface-2);border-radius:calc(var(--radius) - 2px);gap:2px;padding:3px;display:flex}.segmented button{border-radius:calc(var(--radius) - 5px);min-height:38px;color:var(--muted);background:0 0;border:0;flex:1;padding:0 8px;font-size:.9rem;font-weight:600;transition:background .15s,color .15s}.segmented button.on{background:var(--surface);color:var(--text);box-shadow:var(--shadow)}:root[data-theme=black] .segmented button.on{background:var(--border)}.swatches{flex-wrap:wrap;gap:12px;display:flex}.swatch{width:38px;height:38px;color:var(--text);border:0;border-radius:50%;place-items:center;transition:transform .12s;display:grid;position:relative;box-shadow:inset 0 0 0 1px #8080804d}.swatch.on{box-shadow:0 0 0 2px var(--surface), 0 0 0 4px var(--accent-ink)}.swatch.wall{border-radius:calc(var(--radius) - 4px)}.swatch.wall.none{background:var(--surface-2)}.swatch.custom{cursor:pointer;color:#fff;background:conic-gradient(#e5533d,#f08c2e,#f2d338,#2fb36d,#3390ec,#7c5cf0,#e0508f,#e5533d);overflow:hidden}.swatch.custom input{opacity:0;cursor:pointer;width:100%;height:100%;min-height:0;padding:0;position:absolute;inset:0}.color-pair{gap:12px;display:flex}.color-pair input{border-radius:10px;width:56px;height:40px;min-height:0;padding:2px}.switch{background:var(--surface-2);width:52px;height:32px;box-shadow:inset 0 0 0 1px var(--border);border:0;border-radius:999px;flex:none;padding:0;transition:background .2s;position:relative}.switch span{background:#fff;border-radius:50%;width:26px;height:26px;transition:transform .2s;position:absolute;top:3px;left:3px;box-shadow:0 1px 3px #0000004d}.switch.on{background:var(--accent);box-shadow:none}.switch.on span{transform:translate(20px)}.preview{flex-direction:column;align-items:center;gap:12px;margin-bottom:16px;display:flex}.preview-card{background:var(--surface);border-radius:calc(var(--radius) + 4px);width:100%;min-height:130px;box-shadow:var(--shadow);padding:var(--pad);flex-direction:column;justify-content:center;align-items:center;gap:6px;display:flex}.preview-word{font-size:1.8rem;font-weight:700}.preview-tr{color:var(--muted)}.preview-actions{gap:12px;display:flex}.preview-actions .btn{pointer-events:none;min-width:76px}.sheet-backdrop{z-index:50;background:var(--scrim);justify-content:center;align-items:flex-end;animation:.18s ease-out fade;display:flex;position:fixed;inset:0}.sheet{background:var(--surface);border-radius:calc(var(--radius) + 8px) calc(var(--radius) + 8px) 0 0;width:100%;max-width:520px;max-height:92dvh;padding-bottom:var(--safe-bottom);flex-direction:column;animation:.22s cubic-bezier(.2,.8,.2,1) rise;display:flex}.sheet-grip{background:var(--border);border-radius:4px;width:38px;height:4px;margin:8px auto 0}.sheet-head{padding:8px 12px 4px calc(var(--pad) + 2px);justify-content:space-between;align-items:center;display:flex}.sheet-head h2{font-size:1.05rem}.sheet-body{padding:8px var(--pad) var(--pad);overscroll-behavior:contain;overflow-y:auto}@media (width>=640px){.sheet-backdrop{align-items:center}.sheet{border-radius:calc(var(--radius) + 8px);max-height:86dvh}.sheet-grip{display:none}}@keyframes fade{0%{opacity:0}}@keyframes rise{0%{opacity:0;transform:translateY(40px)}}.small{font-size:.82rem}.stack.tight{gap:8px}.btn.big{min-height:54px;font-size:1.05rem}a.btn{text-decoration:none}.info-note{border-radius:calc(var(--radius) - 4px);background:color-mix(in srgb, var(--accent-ink) 12%, transparent);padding:10px 12px;font-size:.92rem}.group-title+.list,.group-title+.group-body{margin-top:0}h3.group-title{margin:14px 4px 8px}.row .plain,.plain{text-align:left;color:inherit;font:inherit;background:0 0;border:0;padding:0}.row-main.plain{flex:1;min-width:0}.row-main.plain:disabled{cursor:default}.row .progress{margin:6px 0 4px}.pill-wrap{z-index:30;left:0;right:0;bottom:calc(var(--nav-h) + var(--safe-bottom) + 10px);pointer-events:none;justify-content:center;display:flex;position:fixed}@media (width>=860px){.pill-wrap{bottom:16px;left:230px}}.pill{pointer-events:auto;border:1px solid var(--border);background:color-mix(in srgb, var(--surface) 90%, transparent);-webkit-backdrop-filter:blur(10px);color:var(--muted);box-shadow:var(--shadow);border-radius:999px;align-items:center;gap:6px;padding:5px 10px;font-size:.76rem;font-weight:600;display:inline-flex}.badge{background:var(--accent);min-width:24px;color:var(--on-accent);text-align:center;border-radius:999px;padding:2px 8px;font-size:.8rem;font-weight:700}.nav-icon{display:inline-grid;position:relative}.nav-count{background:var(--danger);color:#fff;text-align:center;border-radius:999px;min-width:17px;padding:0 5px;font-size:.64rem;font-style:normal;font-weight:700;line-height:17px;position:absolute;top:-5px;right:-10px}.progress{background:var(--surface-2);border-radius:999px;height:6px;overflow:hidden}.progress>div{border-radius:inherit;background:var(--accent);height:100%;transition:width .25s}.study-box{margin:4px 0 16px}.modes{grid-template-columns:repeat(auto-fit,minmax(96px,1fr));gap:10px;margin-bottom:8px;display:grid}.mode{border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);color:var(--accent-ink);flex-direction:column;align-items:center;gap:6px;padding:14px 6px;font-size:.82rem;font-weight:600;display:flex}.mode span{color:var(--text)}.mode:active{transform:scale(.97)}.toolbar{flex-wrap:wrap;gap:8px;margin:14px 0;display:flex}.toolbar .chip{align-items:center;gap:6px;display:inline-flex}.searchbox{color:var(--muted);margin-bottom:12px;position:relative}.searchbox svg{position:absolute;top:14px;left:12px}.searchbox input:not([type=range]){padding-left:40px}.mini-btn{width:30px;height:30px;color:var(--accent-ink);vertical-align:middle;background:0 0;border:0;border-radius:50%;place-items:center;margin-inline-start:6px;display:inline-grid}.mini-btn:active{background:var(--surface-2)}.field-head{justify-content:space-between;align-items:center;display:flex}.field-head .mini-btn{margin:-4px 0}.study{z-index:40;max-width:640px;padding:calc(var(--safe-top) + 4px) var(--pad) calc(var(--safe-bottom) + 12px);background:var(--bg);background-image:var(--wallpaper);background-size:100% 100%;flex-direction:column;margin:0 auto;display:flex;position:fixed;inset:0;overflow-y:auto}@media (width>=640px){.study{box-shadow:0 0 0 100vmax var(--bg)}}.study-top{flex:none;align-items:center;gap:8px;min-height:48px;display:flex}.study-progress{text-align:center;flex:1;min-width:0}.study-count{text-align:right;font-variant-numeric:tabular-nums;min-width:34px;font-size:.85rem}.study-stage{flex:1;place-items:center;min-height:0;padding:8px 0 16px;display:grid}.study-controls{flex-direction:column;flex:none;gap:10px;padding-bottom:6px;display:flex}.flash,.q-card{text-align:center;background:var(--surface);border-radius:calc(var(--radius) + 6px);width:100%;min-height:240px;max-height:100%;box-shadow:var(--shadow);-webkit-user-select:none;user-select:none;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:28px 20px;display:flex;position:relative;overflow:auto}.flash{touch-action:none;-webkit-user-select:none;user-select:none;cursor:pointer;transition:transform .22s,opacity .18s}.flash.dragging{transition:none}.flash.hint-good{box-shadow:0 0 0 3px var(--ok)}.flash.hint-again{box-shadow:0 0 0 3px var(--danger)}.flash-tag{text-transform:uppercase;letter-spacing:.05em;font-size:.72rem;position:absolute;top:12px;left:16px}.q-kind{margin-bottom:8px;font-size:.8rem}.flash-prompt{overflow-wrap:anywhere;font-size:2rem;font-weight:700}.flash-answer{overflow-wrap:anywhere;font-size:1.6rem;font-weight:600}.flash-sub{font-size:.95rem}.flash-example{color:var(--muted);margin-top:10px;font-size:1rem;font-style:italic}.flash-back{flex-direction:column;align-items:center;gap:6px;width:100%;animation:.18s ease-out fade;display:flex}.flash-back hr{border:0;border-top:1px solid var(--border);width:60%;margin:8px 0}.flash-hint{font-size:.78rem;position:absolute;bottom:10px}.flash-badge{text-transform:uppercase;opacity:0;border:2px solid;border-radius:8px;padding:4px 12px;font-weight:800;transition:opacity .1s;position:absolute;top:16px}.flash-badge.good{color:var(--ok);right:16px;transform:rotate(8deg)}.flash-badge.again{color:var(--danger);left:16px;transform:rotate(-8deg)}.flash.hint-good .flash-badge.good,.flash.hint-again .flash-badge.again{opacity:1}.cloze-text{overflow-wrap:anywhere;font-size:1.4rem;font-weight:600;line-height:1.5}.rate-row{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}.rate{border-radius:var(--radius);background:var(--surface);min-height:58px;box-shadow:inset 0 0 0 1px var(--border);border:0;flex-direction:column;justify-content:center;align-items:center;gap:2px;padding:6px 2px;font-size:.92rem;font-weight:650;display:flex}.rate small{color:var(--muted);font-size:.72rem;font-weight:500}.rate.r1{color:var(--danger)}.rate.r2{color:#e0912e}.rate.r3{color:var(--ok)}.rate.r4{color:var(--accent-ink)}.rate.suggested{box-shadow:inset 0 0 0 2px}.rate:active{transform:scale(.97)}.verdict{border-radius:calc(var(--radius) - 4px);text-align:center;padding:10px 12px;font-weight:600}.verdict.ok{background:color-mix(in srgb, var(--ok) 16%, transparent);color:var(--ok)}.verdict.bad{background:color-mix(in srgb, var(--danger) 14%, transparent);color:var(--danger)}.options{flex-direction:column;gap:8px;display:flex}.option{border-radius:var(--radius);background:var(--surface);min-height:52px;box-shadow:inset 0 0 0 1px var(--border);text-align:left;border:0;padding:10px 14px;font-size:1.02rem;font-weight:550;transition:background .15s,box-shadow .15s}.option.right{background:color-mix(in srgb, var(--ok) 18%, var(--surface));box-shadow:inset 0 0 0 2px var(--ok)}.option.wrong{background:color-mix(in srgb, var(--danger) 16%, var(--surface));box-shadow:inset 0 0 0 2px var(--danger)}.option.dim{opacity:.55}.special{flex-wrap:wrap;gap:6px;display:flex}.special .key{border:1px solid var(--border);background:var(--surface);border-radius:10px;min-width:38px;height:38px;padding:0 8px;font-size:1.05rem}.special .key:active{background:var(--surface-2)}.setup{padding-top:8px}.tiles{grid-template-columns:1fr 1fr;gap:10px;margin-top:8px;display:grid}.tile{border-radius:var(--radius);background:var(--surface);min-height:86px;box-shadow:var(--shadow);overflow-wrap:anywhere;border:0;padding:8px;font-size:1.05rem;font-weight:600;transition:transform .15s,opacity .25s,background .15s}.tile.sel{background:color-mix(in srgb, var(--accent) 22%, var(--surface));box-shadow:0 0 0 2px var(--accent)}.tile.bad{background:color-mix(in srgb, var(--danger) 22%, var(--surface));animation:.3s shake}.tile.gone{opacity:0;pointer-events:none;transform:scale(.8)}@keyframes shake{25%{transform:translate(-5px)}75%{transform:translate(5px)}}.timer{font-variant-numeric:tabular-nums;margin:6px 0;font-size:1.4rem;font-weight:700}.mistakes{text-align:left;width:100%}.today-hero{text-align:center;background:var(--surface);border-radius:calc(var(--radius) + 4px);box-shadow:var(--shadow);flex-direction:column;align-items:center;gap:10px;margin-bottom:14px;padding:18px 16px 22px;display:flex}.today-hero .btn{width:100%}.streak{color:#f08c2e;align-items:center;gap:6px;display:flex}.streak strong{color:var(--text);font-size:1.4rem}.big-number{color:var(--accent-ink);font-size:4rem;font-weight:800;line-height:1}.tiles-stat{grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:16px;display:grid}@media (width>=560px){.tiles-stat{grid-template-columns:repeat(4,1fr)}}.stat{border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);color:#f08c2e;flex-direction:column;align-items:center;gap:2px;padding:14px 8px;display:flex}.stat strong{color:var(--text);font-size:1.6rem}.stat span{font-size:.78rem}.bars{width:100%;height:auto}.bar-review{fill:var(--accent)}.bar-practice{fill:color-mix(in srgb, var(--accent) 45%, var(--surface-2))}.axis{stroke:var(--border)}.axis-label{fill:var(--muted);font-size:9px}.legend{color:var(--muted);gap:16px;font-size:.82rem;display:flex}.legend.wrap{flex-wrap:wrap;gap:8px 16px}.dot{border-radius:50%;width:9px;height:9px;margin-right:5px;display:inline-block}.dot.review,.seg.young{background:var(--accent)}.dot.practice{background:color-mix(in srgb, var(--accent) 45%, var(--surface-2))}.dot.new,.seg.new{background:var(--muted)}.dot.learning,.seg.learning{background:#e0912e}.dot.young{background:var(--accent)}.dot.mature,.seg.mature{background:var(--ok)}.stack-bar{background:var(--surface-2);border-radius:999px;gap:2px;height:14px;display:flex;overflow:hidden}.stack-bar .seg{min-width:0;display:block}.import-body{margin-top:14px}.file-btn{cursor:pointer}.check{align-items:center;gap:10px;display:flex}.check input:not([type=range]):not([type=color]){width:22px;height:22px;min-height:22px;accent-color:var(--accent-ink);flex:none;padding:0}.inline-field{flex-direction:row;align-items:center;gap:10px}.inline-field>span.map-name{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--text);flex:1;font-weight:500;overflow:hidden}.inline-field select:not([type=range]){width:46%}.stepper{align-items:center;gap:2px;display:flex}.stepper input:not([type=range]):not([type=color]){text-align:center;width:64px;min-height:40px;padding:8px 4px}.stepper .icon-btn{font-size:1.4rem;line-height:1}.row-actions{align-items:center;gap:6px;display:flex}.time-chip{align-items:center;gap:2px;display:inline-flex}.time-chip input:not([type=range]):not([type=color]){width:auto;min-height:40px;padding:6px 10px}.device{align-items:center;gap:8px;display:flex}.deck-rule{border-top:1px solid var(--border);padding-top:12px}.rule{padding:4px 0 0}.setting.inline small{display:block}.btn.ok-btn{background:color-mix(in srgb, var(--ok) 18%, var(--surface));box-shadow:inset 0 0 0 2px var(--ok)}mark{background:color-mix(in srgb, var(--accent-ink) 22%, transparent);color:inherit;border-radius:4px;padding:0 2px}.build-line{border-radius:var(--radius);min-height:52px;box-shadow:inset 0 0 0 1px var(--border);flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;margin-top:14px;padding:8px;display:flex}.build-bank{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:10px;display:flex}.build-bank .tile,.build-line .tile{width:auto;min-height:44px;padding:8px 14px}body{font-feature-settings:"ss01", "cv11";letter-spacing:-.005em}h1,h2,.row-title,.profile-name,.big-number,.flash-prompt{letter-spacing:-.02em}body:before{content:"";z-index:-1;background:var(--bg);background-image:var(--wallpaper);pointer-events:none;background-size:100% 100%;position:fixed;inset:-40vh 0}.nav{background:var(--surface);-webkit-backdrop-filter:blur(24px)saturate(1.6);border-top:1px solid color-mix(in srgb, var(--border) 70%, transparent)}.nav:after{content:"";background:color-mix(in srgb, var(--surface) 96%, var(--bg));height:200px;position:absolute;top:100%;left:0;right:0}@media (width>=860px){.nav:after{display:none}}.nav-item{font-size:.7rem;font-weight:600;transition:color .2s}.nav-item:active .nav-icon{transform:scale(.88)}.nav-icon{transition:transform .25s var(--spring)}.nav-icon:before{content:"";z-index:-1;background:color-mix(in srgb, var(--accent-ink) 18%, transparent);opacity:0;transition:transform .3s var(--spring), opacity .2s;border-radius:999px;position:absolute;inset:-4px -14px;transform:scaleX(.3)}.nav-item.active .nav-icon:before{opacity:1;transform:scaleX(1)}.nav-item.active .nav-icon svg{animation:pop .4s var(--spring)}.nav-icon{isolation:isolate}@media (width>=860px){.nav-icon:before{display:none}}.page-header{margin-top:calc(-1 * (var(--safe-top) + 4px));padding-top:var(--safe-top);min-height:calc(52px + var(--safe-top));background:color-mix(in srgb, var(--bg) 18%, transparent);-webkit-backdrop-filter:blur(22px)saturate(1.6);transition:background .25s;-webkit-mask-image:linear-gradient(#000 calc(100% - 8px),#0000);mask-image:linear-gradient(#000 calc(100% - 8px),#0000)}:root[data-scrolled="1"] .page-header{background:var(--surface)}.page-header h1{font-size:1.1rem;font-weight:700}@media (width>=860px){.page-header{min-height:52px;margin-top:0;padding-top:0;-webkit-mask-image:none;mask-image:none}}.list,.group-body,.today-hero,.stat,.mode,.preview-card,.tile,.auth-card{border:1px solid color-mix(in srgb, var(--text) 6%, transparent)}.row{transition:background .15s, transform .15s var(--ease-out)}.row:active{transform:scale(.985)}.row-icon{width:36px;height:36px;transition:transform .25s var(--spring);border-radius:11px}.row:active .row-icon{transform:scale(.9)}.avatar{background:linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 55%, #fff));box-shadow:0 6px 20px color-mix(in srgb, var(--accent) 45%, transparent)}.btn{transition:transform .2s var(--spring), opacity .15s, background .2s, box-shadow .2s}.btn:active{transform:scale(.96)}.btn.primary{box-shadow:0 6px 18px color-mix(in srgb, var(--accent) 35%, transparent)}.chip{transition:background .2s, color .2s, border-color .2s, transform .2s var(--spring)}.chip:active{transform:scale(.94)}.icon-btn,.mini-btn{transition:background .15s, transform .2s var(--spring)}.icon-btn:active,.mini-btn:active{transform:scale(.88)}.mode,.stat,.tile,.option,.rate{transition:transform .2s var(--spring), background .15s, box-shadow .15s}.switch,.switch span{transition-timing-function:var(--spring);transition-duration:.3s}.badge{box-shadow:0 2px 10px color-mix(in srgb, var(--accent) 40%, transparent)}.nav-count{animation:pop .4s var(--spring);box-shadow:0 2px 8px #e5484d73}.progress>div{transition:width .45s var(--ease-out)}.page{animation:page-in .28s var(--ease-out) backwards}.page .list,.page .group,.page .today-hero,.page .modes,.page .tiles-stat,.page .profile,.page .study-box,.page .empty{animation:rise-in .42s var(--ease-out) backwards}.page .group:nth-of-type(2),.page .list:nth-of-type(2){animation-delay:40ms}.page .group:nth-of-type(3),.page .list:nth-of-type(3){animation-delay:80ms}.page .group:nth-of-type(n+4),.page .list:nth-of-type(n+4){animation-delay:.12s}.list>li{animation:item-in .38s var(--ease-out) backwards}.list>li:nth-child(2){animation-delay:30ms}.list>li:nth-child(3){animation-delay:60ms}.list>li:nth-child(4){animation-delay:90ms}.list>li:nth-child(5){animation-delay:.12s}.list>li:nth-child(6){animation-delay:.15s}.list>li:nth-child(7){animation-delay:.18s}.list>li:nth-child(n+8){animation-delay:.21s}.sheet{animation:sheet-up .38s var(--ease-out)}.flash-back,.verdict,.info-note,.error-note,.ok-note{animation:rise-in .3s var(--ease-out)}.big-number{animation:pop .5s var(--spring)}@keyframes page-in{0%{opacity:0}}@keyframes rise-in{0%{opacity:0;transform:translateY(10px)}}@keyframes item-in{0%{opacity:0;transform:translateY(6px)}}@keyframes sheet-up{0%{transform:translateY(100%)}}@keyframes pop{0%{transform:scale(.6)}60%{transform:scale(1.12)}to{transform:scale(1)}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.001ms!important;animation-duration:.001ms!important}}.deck-pick{align-items:center;gap:4px;display:flex}.deck-pick select{flex:1;min-width:0}.lesson-expl{gap:8px;line-height:1.5}.lesson-expl p{animation:item-in .35s var(--ease-out) backwards}.lesson-expl p:nth-child(2){animation-delay:40ms}.lesson-expl p:nth-child(3){animation-delay:80ms}.lesson-expl p:nth-child(n+4){animation-delay:.12s}.ai-text{white-space:pre-wrap;font-size:1.05rem;line-height:1.75}mark.pick{cursor:pointer;box-shadow:inset 0 -2px 0 color-mix(in srgb, var(--accent-ink) 45%, transparent);background:0 0;border-radius:5px;padding:1px 3px;transition:background .2s,box-shadow .2s}mark.pick.on{background:color-mix(in srgb, var(--accent-ink) 26%, transparent);box-shadow:none}.pick-bar{justify-content:space-between;align-items:center;margin:-4px 4px -8px;display:flex}.pick-row:not(.on) .row-main{opacity:.55}.pick-row .row-main{transition:opacity .2s}.pick-box{width:24px;height:24px;box-shadow:inset 0 0 0 2px var(--border);color:var(--on-accent);transition:background .2s, box-shadow .2s, transform .25s var(--spring);border-radius:8px;flex:none;place-items:center;display:grid}.pick-row.on .pick-box{background:var(--accent);box-shadow:none;transform:scale(1.05)}.pick-row.on .pick-box svg{animation:pop .3s var(--spring)}.pick-row{cursor:default}.pick-row .row-title.plain{cursor:pointer;width:100%;font-weight:600;display:block}.pick-row .row-sub{cursor:text}.pick-box.plain{cursor:pointer;padding:0}.pick-note{color:var(--muted);margin-top:4px;font-size:.82rem;font-style:italic;line-height:1.35}.pick-edit:not([type=range]){min-height:38px;margin-top:4px;padding:6px 10px;font-size:1rem}.ai-text-head{justify-content:space-between;align-items:center;gap:12px;display:flex}.ai-text-head h3{min-width:0}.btn.listen{flex:none;min-height:38px;padding:0 14px;font-size:.92rem}.btn.listen.on{background:color-mix(in srgb, var(--accent-ink) 18%, var(--surface));color:var(--accent-ink);box-shadow:inset 0 0 0 1.5px var(--accent-ink)}.sent{cursor:pointer;-webkit-box-decoration-break:clone;box-decoration-break:clone;border-radius:6px;transition:background .25s,color .25s}.sent.now{background:color-mix(in srgb, var(--accent-ink) 14%, transparent)}.ai-text:has(.sent.now) .sent:not(.now){color:color-mix(in srgb, var(--text) 60%, transparent)}.constr{-webkit-text-decoration:underline dashed color-mix(in srgb, var(--ok) 70%, transparent);text-decoration:underline dashed color-mix(in srgb, var(--ok) 70%, transparent);text-underline-offset:5px;cursor:pointer;border-radius:4px;text-decoration-thickness:1.5px;transition:background .2s}.constr.on{text-decoration-style:solid;-webkit-text-decoration-color:var(--ok);text-decoration-color:var(--ok);background:color-mix(in srgb, var(--ok) 12%, transparent)}.plan-head{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.plan-week{gap:12px}.plan-week summary{cursor:pointer;flex-direction:column;gap:3px;list-style:none;display:flex}.plan-week summary::-webkit-details-marker{display:none}.plan-week-title{color:var(--accent-ink);align-items:center;gap:6px;font-weight:700;display:flex}.plan-week-title svg{color:var(--ok)}.plan-focus{font-weight:550}.plan-week[open]>summary{border-bottom:1px solid var(--border);padding-bottom:4px}.plan-sec{animation:item-in .3s var(--ease-out) backwards;flex-direction:column;gap:6px;display:flex}.plan-label{text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-size:.75rem;font-weight:650}.plan-chip{color:var(--text);text-align:left;align-items:center;gap:6px;display:inline-flex}.plan-tasks{flex-direction:column;gap:4px;margin:0;padding:0;list-style:none;display:flex}.plan-task{text-align:left;width:100%;color:inherit;font:inherit;background:0 0;border:0;align-items:flex-start;gap:10px;padding:6px 0;display:flex}.plan-task .pick-box{margin-top:1px}.plan-task.on .pick-box{background:var(--ok);box-shadow:none}.plan-task.on>span:last-child{color:var(--muted);text-decoration:line-through}.plan-week>*+*{margin-top:12px}