@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/fef07dbb0973bf53-s.12tyk43_3sh9u.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/8a480f0b521d4e75-s.0jzbimsg8vl84.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/53b9e256198e5412-s.0-wfv7uh4i7h9.woff2)format("woff2");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:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/7178b3e590c64307-s.0nx0ww8fni_q3.woff2)format("woff2");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:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/caa3a2e1cccd8315-s.p.09~u27dqhyhd6.woff2)format("woff2");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}@font-face{font-family:Geist Fallback;src:local(Arial);ascent-override:95.94%;descent-override:28.16%;line-gap-override:0.0%;size-adjust:104.76%}.geist_a71539c9-module__T19VSG__className{font-family:Geist,Geist Fallback;font-style:normal}.geist_a71539c9-module__T19VSG__variable{--font-geist-sans:"Geist", "Geist Fallback"}
@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/5ce348bf30bf5439-s.0zgw-jeven.3w.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/4fa387ec64143e14-s.0wkzw~je483f-.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/6306c77e7c8268e4-s.0rhz0arwfsn~5.woff2)format("woff2");unicode-range:U+2000-2001,U+2004-2008,U+200A,U+23B8-23BD,U+2500-259F}@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/7d817b4c03b0c5f1-s.0l76wvqk9d84w.woff2)format("woff2");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:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/bbc41e54d2fcbd21-s.0k4k9394f2q-k.woff2)format("woff2");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:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/797e433ab948586e-s.p.08e28id.o-okb.woff2)format("woff2");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}@font-face{font-family:Geist Mono Fallback;src:local(Arial);ascent-override:74.67%;descent-override:21.92%;line-gap-override:0.0%;size-adjust:134.59%}.geist_mono_8d43a2aa-module__8Li5zG__className{font-family:Geist Mono,Geist Mono Fallback;font-style:normal}.geist_mono_8d43a2aa-module__8Li5zG__variable{--font-geist-mono:"Geist Mono", "Geist Mono Fallback"}
@font-face{font-family:Noto Serif;font-style:normal;font-weight:100 900;font-stretch:100%;font-display:swap;src:url(../media/d829ba9c72f21fd6-s.0y.jwrte-75a4.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Noto Serif;font-style:normal;font-weight:100 900;font-stretch:100%;font-display:swap;src:url(../media/cf1514ba67088a5f-s.15ww0itm2x.2r.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Noto Serif;font-style:normal;font-weight:100 900;font-stretch:100%;font-display:swap;src:url(../media/142d1fb481f1ebcd-s.0bwgdetvyn-85.woff2)format("woff2");unicode-range:U+1F??}@font-face{font-family:Noto Serif;font-style:normal;font-weight:100 900;font-stretch:100%;font-display:swap;src:url(../media/41900da7e74536d5-s.15f~5j~qkim3f.woff2)format("woff2");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:Noto Serif;font-style:normal;font-weight:100 900;font-stretch:100%;font-display:swap;src:url(../media/aeacf25a943e1f19-s.10y4v8c15go72.woff2)format("woff2");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:Noto Serif;font-style:normal;font-weight:100 900;font-stretch:100%;font-display:swap;src:url(../media/5d3604dad620f8b2-s.0-q.mttzq3gn~.woff2)format("woff2");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:Noto Serif;font-style:normal;font-weight:100 900;font-stretch:100%;font-display:swap;src:url(../media/2b4499d915222007-s.0nbtxmb3x1sqz.woff2)format("woff2");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:Noto Serif;font-style:normal;font-weight:100 900;font-stretch:100%;font-display:swap;src:url(../media/b4e85636e2ca4056-s.p.0c3c6tp9xl371.woff2)format("woff2");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}@font-face{font-family:Noto Serif Fallback;src:local(Times New Roman);ascent-override:90.29%;descent-override:24.75%;line-gap-override:0.0%;size-adjust:118.4%}.noto_serif_54449edb-module__RK88tq__className{font-family:Noto Serif,Noto Serif Fallback;font-style:normal}.noto_serif_54449edb-module__RK88tq__variable{--font-noto-serif:"Noto Serif", "Noto Serif Fallback"}
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.collapse{visibility:collapse}.visible{visibility:visible}.absolute{position:absolute}.relative{position:relative}.static{position:static}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.isolate{isolation:isolate}.container{width:100%}@media (min-width:40rem){.container{max-width:40rem}}@media (min-width:48rem){.container{max-width:48rem}}@media (min-width:64rem){.container{max-width:64rem}}@media (min-width:80rem){.container{max-width:80rem}}@media (min-width:96rem){.container{max-width:96rem}}.block{display:block}.contents{display:contents}.flex{display:flex}.hidden{display:none}.inline{display:inline}.table{display:table}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.resize{resize:both}.italic{font-style:italic}.blur{--tw-blur:blur(8px);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}}:root{--ink:#193a42;--muted:#69828a;--line:#d9ebec;--teal:#169e9d;--mint:#edfafa;--sky:#f7fcfc;--orange:#f69d58}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);background:#f8fcfc;margin:0;font-family:Arial,Apple SD Gothic Neo,Malgun Gothic,sans-serif}button,input{font:inherit}button{cursor:pointer}.app-shell{background:linear-gradient(90deg,#fbfefe 0 16%,#fff 16%);grid-template-columns:256px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{border-right:1px solid var(--line);background:#fafefec7;flex-direction:column;padding:30px 25px 26px;display:flex}.brand{color:var(--ink);letter-spacing:-1.5px;align-items:center;gap:9px;font-size:25px;font-weight:760;text-decoration:none;display:flex}.brand-mark{color:#fff;background:var(--teal);border-radius:10px 10px 10px 3px;place-items:center;width:31px;height:31px;font-family:Georgia,serif;font-size:22px;font-weight:700;display:grid}.tagline{color:#8aa0a5;letter-spacing:.5px;margin:4px 0 47px 40px;font-size:10px}.nav-title{color:#91a6aa;letter-spacing:1.5px;margin:0 0 9px 10px;font-size:11px;font-weight:800}.nav-title.space{margin-top:31px}.nav-item{color:#617980;border-radius:11px;align-items:center;gap:13px;margin:2px 0;padding:12px;font-size:14px;font-weight:650;text-decoration:none;transition:all .2s;display:flex}.nav-item:hover{color:var(--teal);background:#ecf8f8}.nav-item.active{color:#157f81;background:#e7f8f8}.nav-item span{text-align:center;width:15px;font-size:17px}.guide-card{background:linear-gradient(145deg,#e6f8f8,#f4fdfd);border-radius:20px;margin-top:auto;padding:20px 18px}.guide-card p{color:var(--muted);margin:9px 0 0;font-size:13px;line-height:1.55}.eyebrow{color:#7f989e;letter-spacing:1.3px;margin:0;font-size:10px;font-weight:800}.eyebrow.teal{color:var(--teal)}.workspace{width:100%;max-width:clamp(980px,62vw,1200px);margin-inline:auto;padding:36px clamp(30px,4.2vw,68px) 50px}.topbar{justify-content:space-between;align-items:center;margin-bottom:33px;display:flex}.topbar h1{letter-spacing:-1px;margin:7px 0 0;font-size:25px}.topbar h1 span{color:var(--orange)}.streak{color:#497078;background:#f0f9f9;border:0;border-radius:999px;padding:10px 13px;font-size:12px}.user-area,.auth-actions{align-items:center;gap:9px;display:flex}.auth-actions button{color:#54747a;background:#fff;border:1px solid #cce4e5;border-radius:999px;padding:9px 13px;font-size:12px;font-weight:700}.auth-actions .signup{border-color:var(--teal);color:#fff;background:var(--teal)}.lesson-card{border:1px solid var(--line);background:#fff;border-radius:27px;padding:36px 38px 34px;box-shadow:0 12px 35px #36797c0b}.lesson-heading{justify-content:space-between;gap:15px;display:flex}.lesson-heading h2{letter-spacing:-1.1px;margin:9px 0 5px;font-size:26px}.lesson-heading p:not(.eyebrow){color:var(--muted);margin:0;font-size:14px}.level{color:#468085;background:#edfafa;border-radius:999px;height:max-content;padding:7px 10px;font-size:11px}.question-panel{background:#f5fbfb;border-radius:21px;margin-top:29px;padding:27px 29px 30px}.question-entry{gap:11px;display:grid}.question-entry>label{color:#416b71;font-size:13px;font-weight:750}.study-types{border:0;min-width:0;margin:0;padding:0}.study-types legend{color:#6e898e;padding:0;font-size:12px;font-weight:700}.study-types legend span{color:#94aaae;font-weight:500}.study-types>div{flex-wrap:wrap;gap:8px;margin-top:8px;display:flex}.study-option{color:#55767c;cursor:pointer;background:#fff;border:1px solid #d5e8e9;border-radius:12px;align-items:center;gap:8px;padding:9px 11px;transition:all .15s;display:flex}.study-option:hover{border-color:#8ccfd0}.study-option input{width:15px;height:15px;accent-color:var(--teal);margin:0}.study-option input:disabled{cursor:not-allowed}.study-option span{flex-direction:column;gap:2px;display:flex}.study-option strong{color:#426b71;font-size:12px}.study-option small{color:#8da4a8;font-size:10px}.question-entry textarea{resize:vertical;width:100%;min-height:205px;color:var(--ink);font:inherit;background:#fff;border:1px solid #cfe5e7;border-radius:14px;outline:none;padding:15px 16px;font-size:14px;line-height:1.6}.question-entry textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px #e0f6f5}.question-entry textarea:disabled{color:#81999d;cursor:not-allowed;background:#f7fbfb}.question-actions{justify-content:space-between;align-items:center;gap:16px;display:flex}.question-actions span{color:#839ca1;font-size:11px}.question-actions button{color:#fff;background:var(--teal);border:0;border-radius:12px;padding:12px 16px;font-size:13px;font-weight:750}.question-actions button:disabled{cursor:not-allowed;background:#9dc6c6}.ask-card{border:1px solid var(--line);background:#fff;border-radius:20px;margin-top:22px;padding:26px 29px}.ask-row{gap:8px;display:flex}.ask-row input{min-width:0;color:var(--ink);border:1px solid #cfe5e7;border-radius:13px;outline:none;flex:1;padding:14px 16px;font-size:13px}.ask-row input:focus{border-color:var(--teal);box-shadow:0 0 0 3px #e0f6f5}.ask-row button{color:#fff;background:var(--teal);border:0;border-radius:13px;width:45px;font-size:22px}.ask-row button:disabled{cursor:not-allowed;background:#9dc6c6}.sent-message{color:#3d7177;margin:13px 0 0;font-size:12px;line-height:1.55}.error-message{color:#b96145}.tutor-answer{background:#f1fbfa;border-radius:13px;margin-top:0;padding:16px 17px}.tutor-answer>p:last-child{color:#426b71;white-space:pre-wrap;margin:8px 0 0;font-size:13px;line-height:1.7}.beta-waiting{background:#f7fcfc;border:1px solid #d8ebec;border-radius:18px;margin-top:29px;padding:25px 26px}.beta-waiting h3{color:#3f6970;margin:8px 0 6px;font-size:17px}.beta-waiting p:not(.eyebrow){color:#6b878d;max-width:520px;margin:0;font-size:13px;line-height:1.6}.admin-card{background:#f8fdfd;border:1px solid #cde8e8;border-radius:20px;margin-top:22px;padding:25px 29px}.admin-card h2{margin:7px 0 5px;font-size:17px}.admin-card>div>p:not(.eyebrow){color:#6c868c;margin:0 0 17px;font-size:12px}.invite-list{flex-wrap:wrap;gap:7px;margin-top:14px;display:flex}.invite-list span{color:#4e7077;background:#e9f6f6;border-radius:999px;padding:6px 9px;font-size:11px}.auth-shell{background:linear-gradient(#fbfefe,#f7fcfc);flex-direction:column;align-items:center;gap:34px;min-height:100vh;padding:52px 20px;display:flex}.auth-panel{border:1px solid var(--line);text-align:center;background:#fff;border-radius:24px;width:100%;max-width:420px;padding:34px 34px 30px;box-shadow:0 12px 35px #36797c0f}.auth-panel h1{letter-spacing:-.8px;margin:8px 0 6px;font-size:22px}.auth-subtitle{color:var(--muted);margin:0 0 24px;font-size:13px;line-height:1.55}.auth-card-root,.auth-card,.auth-card-root .cl-cardBox{width:100%!important;box-shadow:none!important;background:0 0!important;border:0!important;padding:0!important}.auth-card-hide{display:none}.auth-card-social{border:1px solid #d4e7e9!important;border-radius:13px!important}.auth-card-divider{background:var(--line)!important}.auth-card-divider-text{color:#91a6aa!important}.auth-card-label{color:var(--ink)!important}.auth-card-input{border:1px solid #cfe5e7!important;border-radius:13px!important}.auth-card-submit{background:var(--teal)!important;border-radius:13px!important}.auth-card-link{color:var(--teal)!important}@media (max-width:1160px){.app-shell{grid-template-columns:220px 1fr}.workspace{max-width:none}.sidebar{padding-inline:20px}}@media (max-width:760px){.app-shell{background:#fff;display:block}.sidebar{border-bottom:1px solid var(--line);padding:18px 20px}.tagline,.nav-title,.nav-item,.guide-card,.sidebar nav{display:none}.workspace{padding:25px 17px 38px}.topbar{margin-bottom:22px}.topbar h1{font-size:22px}.lesson-card{border-radius:22px;padding:25px 18px 18px}.lesson-heading h2{font-size:22px}.level{display:none}.question-panel{margin-top:22px;padding:20px 17px}.question-entry textarea{min-height:190px}.question-actions{flex-direction:column;align-items:flex-start}.question-actions button{width:100%}.ask-card{padding:21px 19px}.ask-row input{font-size:12px}}.tutor-answer small{color:#759195;margin-top:12px;font-size:11px;display:block}.study-markdown{color:#426b71;font-size:13px;line-height:1.75}.study-markdown>:first-child{margin-top:8px}.study-markdown>:last-child{margin-bottom:0}.study-markdown p{margin:9px 0}.study-markdown h1,.study-markdown h2,.study-markdown h3{color:#24555d;letter-spacing:-.35px;margin:18px 0 7px;line-height:1.45}.study-markdown h1{font-size:18px}.study-markdown h2{font-size:16px}.study-markdown h3{font-size:14px}.study-markdown strong{color:#1d515a;font-weight:800}.study-markdown ul,.study-markdown ol{margin:8px 0;padding-left:21px}.study-markdown li{margin:4px 0}.study-markdown hr{border:0;border-top:1px solid #d5eaea;margin:17px 0}.saved-answer>div .study-markdown{margin-top:10px}.daily-note .study-markdown{margin-top:12px}.notes-card,.archive-card{border:1px solid var(--line);background:#fff;border-radius:20px;margin-top:22px;padding:26px 29px}.notes-heading{justify-content:space-between;align-items:flex-start;gap:18px;display:flex}.notes-heading h2,.archive-card h2{margin:7px 0 5px;font-size:18px}.notes-heading p:not(.eyebrow),.archive-card>div>p:not(.eyebrow){color:#6c868c;margin:0;font-size:12px;line-height:1.55}.notes-heading button{color:#fff;background:#237f8a;border:0;border-radius:12px;flex:none;padding:11px 14px;font-size:12px;font-weight:750}.notes-heading button:disabled{cursor:not-allowed;background:#a2c6c8}.daily-note{background:#f7fcfc;border:1px solid #d9eeee;border-radius:15px;margin-top:18px;padding:20px}.daily-note>div{justify-content:space-between;align-items:center;gap:10px;display:flex}.daily-note strong{font-size:14px}.daily-note span{color:#177f81;background:#dff4f2;border-radius:999px;padding:5px 8px;font-size:10px;font-weight:750}.daily-note>p{color:#426b71;white-space:pre-wrap;margin:15px 0 0;font-size:13px;line-height:1.75}.note-list{gap:12px;margin-top:18px;display:grid}.topbar{z-index:20;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff5;border-bottom:1px solid #d9ebecdb;padding:17px 0 19px;position:sticky;top:0}.image-upload{background:#fff;border:1px dashed #a8d5d5;border-radius:13px;justify-content:space-between;align-items:center;gap:14px;padding:12px 13px;display:flex}.image-upload>div{flex-direction:column;gap:3px;display:flex}.image-upload strong{color:#426b71;font-size:12px}.image-upload span{color:#89a1a5;font-size:10px}.image-upload-button{cursor:pointer;flex:none}.image-upload-button input{opacity:0;width:1px;height:1px;position:absolute;overflow:hidden}.image-upload-button span{color:#177f81;background:#effafa;border:1px solid #bfe1e0;border-radius:9px;padding:8px 10px;font-size:11px;font-weight:750;display:block}.image-upload-button:has(input:disabled){cursor:not-allowed;opacity:.55}.image-error{color:#b96145;margin:0;font-size:11px}.image-previews{flex-wrap:wrap;gap:9px;display:flex}.image-preview{background:#fff;border:1px solid #cde7e7;border-radius:11px;width:92px;height:70px;position:relative;overflow:hidden}.image-preview img{object-fit:cover;width:100%;height:100%}.image-preview button{color:#fff;background:#193a42c7;border:0;border-radius:50%;width:20px;height:20px;padding:0;font-size:16px;line-height:18px;position:absolute;top:4px;right:4px}.entry-options{grid-template-columns:1fr 1fr;align-items:start;gap:11px;display:grid}.entry-options .study-types{background:#fff;border:1px solid #d5e8e9;border-radius:13px;padding:14px 15px}.entry-options .study-types legend{float:left;margin-bottom:11px}.entry-options .study-types>div{clear:both;margin-top:0}.entry-options .quality-control{height:100%}.quality-control{background:#fff;border:1px solid #d5e8e9;border-radius:13px;justify-content:space-between;align-items:center;gap:14px;padding:14px 15px;display:flex}.quality-control>div:first-child{flex-direction:column;gap:3px;display:flex}.quality-control strong{color:#426b71;font-size:12px}.quality-control small{color:#89a1a5;font-size:10px}.quality-toggle{border:1px solid #c8e3e3;border-radius:10px;display:flex;overflow:hidden}.quality-toggle button{color:#668187;background:#fff;border:0;border-right:1px solid #c8e3e3;padding:8px 10px;font-size:11px;font-weight:750}.quality-toggle button:last-child{border-right:0}.quality-toggle button.selected{color:#fff;background:#168f90}.quality-fixed{color:#426b71;background:#edf6f6;border-radius:10px;padding:8px 12px;font-size:11px;font-weight:750}.invite-controls{gap:8px;display:flex}.invite-controls>select{color:#55747a;background:#fff;border:1px solid #cfe5e7;border-radius:13px;outline:none;flex:none;padding:0 10px;font-size:12px}@media (max-width:760px){.topbar{flex-direction:column;align-items:stretch;gap:13px;padding:12px 0 16px}.topbar>div{min-width:0}.topbar h1{font-size:21px}.auth-actions,.user-area{justify-content:flex-end}.auth-actions button,.streak{white-space:nowrap}.image-upload{flex-direction:column;align-items:flex-start}.image-upload-button{width:100%}.image-upload-button span{text-align:center}.entry-options{grid-template-columns:1fr}.quality-control{flex-direction:column;align-items:flex-start}.quality-toggle{width:100%}.quality-toggle button{flex:1}.invite-controls{flex-direction:column}.invite-controls>select{min-height:42px}}.saved-list{gap:9px;margin-top:18px;display:grid}.saved-answer{background:#fbfefe;border:1px solid #dceced;border-radius:13px;overflow:hidden}.saved-answer summary{cursor:pointer;align-items:center;gap:9px;padding:14px 15px;list-style:none;display:flex}.saved-answer summary::-webkit-details-marker{display:none}.saved-answer summary:after{color:#7a989c;content:"⌄";margin-left:auto}.saved-answer[open] summary:after{content:"⌃"}.saved-answer summary span{color:#168487;text-overflow:ellipsis;white-space:nowrap;flex:none;max-width:110px;font-size:10px;font-weight:750;overflow:hidden}.saved-answer summary strong{color:#456b71;text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.saved-answer>div{border-top:1px solid #eaf3f3;padding:0 15px 16px}.saved-answer>div p:last-child{color:#476c72;white-space:pre-wrap;margin:10px 0 0;font-size:13px;line-height:1.7}.saved-time{color:#91a8ac;margin:11px 0 0;font-size:10px}.review-ready{color:#117f80;margin-top:12px;font-size:11px;font-weight:750;text-decoration:none;display:inline-block}.review-ready:hover{text-decoration:underline}.review-page-card{border:1px solid var(--line);background:#fff;border-radius:20px;margin-top:22px;padding:26px 29px}.review-heading{justify-content:space-between;align-items:flex-start;gap:18px;display:flex}.review-heading h2{margin:7px 0 5px;font-size:18px}.review-heading p:not(.eyebrow){color:#6c868c;margin:0;font-size:12px;line-height:1.55}.review-count{color:#177f81;white-space:nowrap;background:#e3f5f3;border-radius:999px;padding:7px 10px;font-size:11px;font-weight:750}.review-question{background:#f7fcfc;border:1px solid #d7eded;border-radius:17px;margin-top:20px;padding:23px}.review-focus{color:#177f81;background:#ddf4f1;border-radius:999px;padding:5px 8px;font-size:10px;font-weight:750;display:inline-block}.review-step{color:#81999d;margin:16px 0 7px;font-size:11px}.review-question h3{color:#385f66;letter-spacing:-.4px;margin:0;font-size:18px;line-height:1.55}.review-solution{background:#fff;border:1px solid #d9ebec;border-radius:12px;margin-top:18px;padding:14px 15px}.review-solution strong{color:#168487;font-size:11px}.review-solution p{color:#476c72;white-space:pre-wrap;margin:7px 0 0;font-size:13px;line-height:1.65}.review-actions{justify-content:flex-end;gap:8px;margin-top:18px;display:flex}.review-actions button,.review-empty a{color:#fff;background:#168f90;border:0;border-radius:10px;padding:10px 13px;font-size:12px;font-weight:750;text-decoration:none}.review-actions button.again{color:#55777c;background:#fff;border:1px solid #cfe5e7}.review-actions button:disabled{cursor:not-allowed;opacity:.6}.review-empty{background:#f4fbfb;border-radius:16px;flex-direction:column;align-items:flex-start;gap:7px;margin-top:20px;padding:24px;display:flex}.review-empty span{color:#169e9d;font-size:20px}.review-empty strong{color:#416b71;font-size:14px}.review-empty p{color:#748f94;margin:0 0 7px;font-size:12px}.review-empty a{display:inline-block}@media (max-width:760px){.ask-card,.notes-card,.archive-card{padding:21px 19px}.notes-heading{flex-direction:column}.notes-heading button{width:100%}.saved-answer summary{align-items:flex-start}.review-page-card{padding:21px 19px}.review-heading{flex-direction:column}.review-actions{flex-direction:column-reverse}.review-actions button{width:100%}}.page-card{margin-top:0}.response-modes{background:#fff;border:1px solid #d5e8e9;border-radius:13px;margin:2px 0 0;padding:14px 15px}.response-modes legend{color:#6e898e;padding:0;font-size:12px;font-weight:700}.response-modes>div{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:10px;display:grid}.response-mode{color:#55767c;cursor:pointer;border:1px solid #d5e8e9;border-radius:11px;align-items:center;gap:8px;min-width:0;padding:10px;transition:all .15s;display:flex}.response-mode:has(input:checked){background:#effafa;border-color:#69bbbb;box-shadow:0 0 0 2px #e1f5f4}.response-mode:hover{border-color:#8ccfd0}.response-mode input{width:14px;height:14px;accent-color:var(--teal);flex:none;margin:0}.response-mode input:disabled{cursor:not-allowed}.response-mode span{flex-direction:column;gap:2px;min-width:0;display:flex}.response-mode strong{color:#426b71;font-size:11px}.response-mode small{color:#8da4a8;font-size:9px;line-height:1.35}.review-reminder{color:#386a71;background:#f0fbf9;border:1px solid #c8e8e6;border-radius:16px;align-items:center;gap:13px;margin-top:18px;padding:15px 18px;text-decoration:none;display:flex}.review-reminder>span{color:#fff;background:#1a9695;border-radius:50%;flex:none;place-items:center;width:30px;height:30px;font-size:17px;display:grid}.review-reminder div{flex-direction:column;flex:1;gap:3px;min-width:0;display:flex}.review-reminder strong{font-size:12px}.review-reminder small{color:#739297;font-size:10px}.review-reminder b{color:#157f81;white-space:nowrap;font-size:11px}.review-reminder:hover{background:#e9f8f6;border-color:#8acfd0}.study-tags{flex-wrap:wrap;gap:5px;margin:11px 0 2px;display:flex}.study-tags span{color:#237f82;background:#ddf3f1;border-radius:999px;padding:4px 7px;font-size:10px;font-weight:750}.study-tags .difficulty-tag{color:#8b5d36;background:#fff0df}.weekly-report-card{background:linear-gradient(135deg,#fff,#f6fcfc);border:1px solid #d2ebea;border-radius:20px;margin-top:22px;padding:26px 29px}.weekly-report{background:#f7fcfc;border:1px solid #d8eeee;border-radius:15px;margin-top:18px;padding:20px}.weekly-report>div{justify-content:space-between;align-items:center;gap:10px;display:flex}.weekly-report strong{font-size:14px}.weekly-report span{color:#177f81;background:#dff4f2;border-radius:999px;padding:5px 8px;font-size:10px;font-weight:750}.weekly-report .study-markdown{margin-top:12px}@media (max-width:760px){.response-modes>div{grid-template-columns:repeat(2,minmax(0,1fr))}.weekly-report-card{padding:21px 19px}.review-reminder{flex-wrap:wrap;align-items:flex-start}.review-reminder b{margin-left:43px}}.auth-actions button:hover{color:#3a5f65;border-color:#a9d4d5}.auth-actions .signup:hover{color:#fff;background:#128e8d;border-color:#128e8d}.question-actions button:hover:not(:disabled),.ask-row button:hover:not(:disabled){background:#128e8d}.notes-heading button:hover:not(:disabled){background:#1c6f78}.review-actions button:hover:not(:disabled){background:#128e8d}.review-actions button.again:hover:not(:disabled){color:#3a5f65;background:#fff;border-color:#8ccfd0}.review-empty a:hover{background:#128e8d}.quality-toggle button:hover:not(.selected){color:#3a5f65;background:#f2fafa}.image-upload-button:hover span{color:#128e8d;border-color:#8ccfd0}.invite-controls .ask-row button:hover{background:#128e8d}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}