/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@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{box-sizing:border-box;border:0 solid;margin:0;padding:0}::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]){-webkit-appearance:button;appearance:button}::file-selector-button{-webkit-appearance: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}.relative{position:relative}.start{inset-inline-start:var(--spacing)}.flex{display:flex}.table{display:table}.table-row{display:table-row}.grow{flex-grow:1}}:root{--paper:#f5f1e8;--ink:#192733;--muted:#718079;--red:#d85d49;--sage:#9aab9b;--line:#ded9ce;--white:#fffdf8}*{box-sizing:border-box}body{background:var(--paper);color:var(--ink);margin:0;font-family:Yu Gothic UI,Hiragino Kaku Gothic ProN,sans-serif}button,input,select{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh}.sidebar{border-right:1px solid var(--line);z-index:5;background:#fcfaf5;flex-direction:column;width:245px;padding:34px 24px 22px;display:flex;position:fixed;inset:0 auto 0 0}.brand{text-align:left;color:var(--ink);background:0 0;border:0;align-items:center;gap:13px;padding:0 4px 38px;display:flex}.brand-mark{background:var(--red);color:#fff;border-radius:50%;place-items:center;width:42px;height:42px;font-family:serif;font-size:24px;display:grid}.brand strong,.brand>span:last-child{letter-spacing:.06em;font-family:serif;font-size:19px;font-weight:700}.brand small{color:#8e9992;letter-spacing:.05em;margin-top:3px;font:10px sans-serif;display:block}.sidebar nav{gap:8px;display:grid}.sidebar nav button,.mobile-nav button{color:#68756f;text-align:left;background:0 0;border:0;border-radius:9px;align-items:center;gap:15px;padding:13px 15px;font-weight:600;display:flex}.sidebar nav button:hover,.sidebar nav .nav-active{color:var(--ink);background:#f0e8dc}.nav-icon{text-align:center;width:22px;font-size:22px}.sidebar nav em{background:var(--red);color:#fff;border-radius:20px;margin-left:auto;padding:2px 8px;font-size:11px;font-style:normal}.sidebar-bottom{border-top:1px solid var(--line);align-items:center;gap:10px;margin-top:auto;padding:22px 4px 0;display:flex}.avatar{color:#fff;background:#e3b8a6;border-radius:50%;place-items:center;width:38px;height:38px;display:grid}.sidebar-bottom strong,.sidebar-bottom span{font-size:13px;display:block}.sidebar-bottom span{color:#929c96;margin-top:3px;font-size:10px}.sidebar-bottom button{color:#8d9691;background:0 0;border:0;margin-left:auto}main{min-height:100vh;margin-left:245px}.topbar{border-bottom:1px solid var(--line);background:#fcfaf5b8;justify-content:space-between;align-items:center;height:90px;padding:0 5.5vw;display:flex}.course-picker,.streak{align-items:center;gap:12px;display:flex}.course-dot{color:#fff;background:#24333e;border-radius:9px;place-items:center;width:39px;height:39px;font-family:serif;display:grid}.topbar small{color:#8b9690;font-size:10px;display:block}.topbar select{color:var(--ink);background:0 0;border:0;padding:2px 22px 2px 0;font-weight:700}.streak{border-left:1px solid var(--line);padding-left:22px}.streak>span{color:var(--red);font-size:25px}.streak strong{font-family:serif}.page{max-width:1160px;margin:auto;padding:55px 5.5vw 90px}.welcome p,.page-heading p,.eyebrow,.section-title p{color:var(--red);letter-spacing:.16em;font-size:12px;font-weight:700}.welcome h1,.page-heading h1{margin:8px 0;font-family:serif;font-size:34px}.welcome>span,.page-heading span{color:#77837d;font-size:14px}.today-card{color:#fff;background:#20303b;border-radius:18px;grid-template-columns:1.1fr .9fr;min-height:340px;margin-top:34px;display:grid;overflow:hidden;box-shadow:0 17px 35px #2938451a}.today-main{padding:42px 45px}.eyebrow{color:#e57a66}.eyebrow span{color:#e8e5dd;letter-spacing:0;background:#ffffff19;border-radius:20px;margin-left:8px;padding:5px 10px}.today-card h2{margin:18px 0 9px;font-family:serif;font-size:29px}.today-card p{color:#bfc9c5;font-size:13px}.counts{align-items:center;gap:32px;margin:28px 0;display:flex}.counts div{grid-template-columns:auto 1fr;gap:0 9px;display:grid}.counts strong{grid-row:1/3;font:43px serif}.counts span{margin-top:5px;font-weight:700}.counts small{color:#9daaa6;font-size:10px}.counts i{background:#ffffff2d;width:1px;height:45px}.primary{background:var(--red);color:#fff;border:0;border-radius:9px;padding:15px 21px;font-weight:700;box-shadow:0 7px 15px #1114}.primary span{margin-left:50px}.time{color:#8fa09c;margin-left:18px;font-size:10px}.today-art{background:#d9d1bf;position:relative;overflow:hidden}.sun{opacity:.85;background:#e26c54;border-radius:50%;width:180px;height:180px;position:absolute;top:60px;right:25px}.paper{width:270px;height:178px;color:var(--ink);z-index:2;background:#fffefa;padding:37px 29px;position:absolute;top:68px;left:30px;transform:rotate(-3deg);box-shadow:0 18px 25px #2333}.paper span{font:31px Georgia,serif;display:block}.paper i{margin-top:13px;font-size:12px;font-style:normal;display:block}.paper b{width:25px;height:25px;color:var(--red);border:1px solid #cfc8bb;border-radius:50%;place-items:center;display:grid;position:absolute;bottom:18px;right:20px}.paper.back{z-index:1;background:#eee8d9;transform:rotate(8deg)translate(30px,-8px)}.stats{grid-template-columns:repeat(3,1fr);gap:15px;margin:20px 0 52px;display:grid}.stats>div{border:1px solid var(--line);background:#fbf9f3;border-radius:12px;gap:15px;padding:20px;display:flex}.stat-icon,.mini-icon{border-radius:50%;place-items:center;width:43px;height:43px;font-family:serif;display:grid}.red{color:#c95743;background:#f3dcd5}.blue{color:#536f76;background:#dfe7e8}.green{color:#637d69;background:#e1e8df}.stats p{color:#7c8882;margin:0;font-size:11px}.stats strong{color:var(--ink);margin-top:4px;font:26px serif;display:block}.stats strong small{margin-left:3px;font:11px sans-serif}.stats em{color:#9ba39f;font-size:9px;font-style:normal}.section-title{justify-content:space-between;align-items:end;display:flex}.section-title h2{margin:6px 0;font:23px serif}.section-title button{color:#77837d;background:0 0;border:0;font-size:12px}.recent-list{grid-template-columns:repeat(3,1fr);gap:15px;margin-top:17px;display:grid}.recent-list article{border:1px solid var(--line);background:#fbf9f3;border-radius:12px;align-items:center;gap:13px;padding:20px;display:flex}.mini-icon{border-radius:8px}.coral{color:#c85948;background:#f0dbd4}.sage{color:#5f7b68;background:#dce5de}.gold{color:#9a7a37;background:#eee3c7}.recent h3{margin:5px 0;font:20px Georgia,serif}.recent small{color:#8b9590}.recent p{color:#7d8983;margin:0;font-size:11px}.recent article button{color:#a7aca9;background:0 0;border:0;margin-left:auto;font-size:24px}.page-heading{justify-content:space-between;align-items:end;margin-bottom:38px;display:flex}.primary.small{padding:12px 19px}.toolbar{gap:8px;margin-bottom:18px;display:flex}.toolbar label{border:1px solid var(--line);background:#fff;border-radius:9px;margin-right:auto;padding:10px 13px}.toolbar input{background:0 0;border:0;outline:0;margin-left:8px}.toolbar button{border:1px solid var(--line);color:#6d7973;background:#fbfaf6;border-radius:8px;padding:9px 14px}.toolbar .filter-active{background:var(--ink);color:#fff}.table{border:1px solid var(--line);background:#fbfaf6;border-radius:12px;overflow:hidden}.table-row{border-bottom:1px solid var(--line);grid-template-columns:2fr .7fr 1fr 1fr 40px;align-items:center;padding:17px 22px;font-size:13px;display:grid}.table-row:last-child{border:0}.table-row.head{color:#7a857f;background:#eee9df;font-size:10px;font-weight:700}.table-row strong{font:18px Georgia,serif}.table-row button{background:0 0;border:0}.state{background:#73a17c;border-radius:50%;width:7px;height:7px;margin-right:8px;display:inline-block}.state.未学習{background:#aaa}.state.一時停止{background:#c79b53}.review-page{max-width:900px}.review-top{align-items:center;gap:25px;display:flex}.review-top>button{color:#76817c;background:0 0;border:0}.review-top>div{text-align:center;flex:1;font-size:11px}.review-top>div>div{background:#ddd8ce;border-radius:5px;height:5px;margin-top:8px;overflow:hidden}.review-top i{background:var(--red);height:100%;display:block}.review-card{border:1px solid var(--line);text-align:center;background:#fffdf9;border-radius:18px;min-height:500px;margin-top:28px;padding:55px;box-shadow:0 15px 35px #26333b12}.pill{color:#bc5848;background:#f1dfd8;border-radius:20px;padding:5px 11px;font-size:10px}.review-card>small{color:#8c9691;margin-top:23px;display:block}.review-card h1{margin:60px 0;font:52px Georgia,serif}.reveal{min-width:220px}.answer .rule{border-top:1px solid var(--line);margin:30px 0}.answer h2{font:25px serif}.answer>p{color:#69756f;max-width:560px;margin:12px auto;font-size:13px;line-height:1.9}.answer blockquote{border-left:3px solid var(--red);text-align:left;background:#f2eee6;max-width:560px;margin:22px auto;padding:17px}.answer blockquote span{color:#75817b;margin-top:5px;font-size:12px;display:block}.answer .question{color:var(--ink);margin-top:25px;font-weight:700}.rating{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}.rating button{border:1px solid var(--line);color:#53615b;background:#fff;border-radius:9px;padding:10px 5px}.rating button:hover{border-color:var(--red);color:var(--red)}.rating b,.rating small{display:block}.rating b{font-size:18px}.rating small{color:#9aa39e;margin-top:3px;font-size:9px}.settings section{border:1px solid var(--line);background:#fbfaf6;border-radius:12px;margin-bottom:18px;padding:27px}.settings h2{border-bottom:1px solid var(--line);margin-top:0;padding-bottom:15px;font:20px serif}.settings label{margin:20px 0;font-size:12px;font-weight:700;display:block}.settings input,.settings select{border:1px solid var(--line);background:#fff;border-radius:8px;width:100%;margin-top:8px;padding:11px;display:block}.tags{gap:7px;margin-top:10px;display:flex}.tags span{background:#eee8dc;border-radius:20px;padding:7px 10px}.tags button{background:0 0;border:1px dashed #aaa;border-radius:20px}.range-line{align-items:center;gap:20px;display:flex}.range-line input{flex:1}.settings label>small{color:#8c9691;margin-top:7px;font-weight:400;display:block}.toast{color:#fff;z-index:20;background:#263640;border-radius:8px;padding:13px 18px;font-size:12px;position:fixed;bottom:25px;right:25px}.mobile-nav{display:none}@media (max-width:850px){.sidebar{display:none}main{margin:0}.topbar{height:70px;padding:0 20px}.page{padding:34px 20px 95px}.welcome h1{font-size:28px}.today-card{grid-template-columns:1fr}.today-main{padding:30px 25px}.today-art{height:210px}.stats,.recent-list{grid-template-columns:1fr}.table{overflow-x:auto}.table-row{min-width:650px}.mobile-nav{border-top:1px solid var(--line);z-index:10;background:#fffdf8;grid-template-columns:repeat(4,1fr);display:grid;position:fixed;bottom:0;left:0;right:0}.mobile-nav button{border-radius:0;flex-direction:column;align-items:center;gap:1px;padding:8px 3px;font-size:9px;display:flex}.mobile-nav .nav-active{color:var(--red)}.page-heading{align-items:flex-start;gap:20px}.page-heading h1{font-size:27px}.toolbar{flex-wrap:wrap}.toolbar label{width:100%}.rating{grid-template-columns:repeat(2,1fr)}.review-card{padding:30px 18px}.review-card h1{font-size:42px}.today-art .paper{left:12%}.time{margin:12px 0;display:block}.primary span{margin-left:25px}}.modal-backdrop{z-index:30;background:#12202bb3;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.material-modal{background:#fffdf9;border-radius:16px;width:min(620px,100%);max-height:90vh;padding:28px;overflow:auto;box-shadow:0 24px 70px #0005}.modal-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:start;padding-bottom:18px;display:flex}.modal-head small{color:var(--red);letter-spacing:.12em;font-weight:700}.modal-head h2{margin:5px 0 0;font:27px serif}.modal-head button{color:#66736d;background:#eee9df;border:0;border-radius:50%;width:35px;height:35px;font-size:22px}.material-modal label{margin-top:18px;font-size:12px;font-weight:700;display:block}.material-modal input,.material-modal textarea,.material-modal select{border:1px solid var(--line);background:#fff;border-radius:8px;outline:none;width:100%;margin-top:8px;padding:11px 12px;display:block}.material-modal textarea{resize:vertical}.material-modal input:focus,.material-modal textarea:focus,.material-modal select:focus,.typed-answer textarea:focus{border-color:var(--red);box-shadow:0 0 0 3px #d85d4917}.form-pair{grid-template-columns:1fr 1fr;gap:13px;display:grid}.modal-actions{justify-content:flex-end;gap:9px;margin-top:25px;display:flex}.modal-actions>button:first-child{border:1px solid var(--line);background:#fff;border-radius:9px;padding:11px 17px}.form-error{color:#b44434;background:#fae9e4;border-radius:7px;padding:9px 11px;font-size:12px}.study-mode-tabs{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:22px;display:grid}.study-mode-tabs button{border:1px solid var(--line);text-align:left;color:#76817c;background:#fbfaf6;border-radius:11px;padding:14px 18px}.study-mode-tabs button b,.study-mode-tabs button span{display:block}.study-mode-tabs button b{color:var(--ink);font-size:14px}.study-mode-tabs button span{margin-top:4px;font-size:10px}.study-mode-tabs button.active{border-color:var(--red);box-shadow:inset 3px 0 0 var(--red);background:#f7e8e2}.card-labels{justify-content:center;gap:7px;display:flex}.phase-pill{color:#607666;background:#e5ebe5;border-radius:20px;padding:5px 11px;font-size:10px}.phase-pill.review{color:#526e76;background:#e1e8ea}.typed-answer{text-align:left;max-width:520px;margin:-20px auto 0}.typed-answer label{color:#6f7b75;margin-bottom:7px;font-size:11px;font-weight:700;display:block}.typed-answer textarea{border:1px solid var(--line);resize:vertical;background:#fff;border-radius:10px;outline:none;width:100%;padding:13px}.typed-answer .reveal{margin:15px auto 8px;display:block}.typed-answer .reveal:disabled{opacity:.45;cursor:not-allowed}.skip-answer{color:#78847e;background:0 0;border:0;margin:auto;font-size:11px;text-decoration:underline;display:block}.answer-compare{text-align:left;grid-template-columns:1fr 1fr;gap:10px;max-width:600px;margin:0 auto 18px;display:grid}.answer-compare section{border:1px solid var(--line);background:#f6f2ea;border-radius:10px;padding:15px}.answer-compare section.correct{background:#edf3ec;border-color:#a9beab}.answer-compare small{color:#7c8882;font-weight:700}.answer-compare p,.answer-compare h2{color:var(--ink)!important;margin:8px 0 0!important;line-height:1.55!important}.answer-compare h2{font-size:19px}.self-grade{grid-template-columns:1fr 1fr;gap:10px;max-width:440px;margin:15px auto 0;display:grid}.self-grade button{border:1px solid var(--line);background:#fff;border-radius:10px;padding:13px}.self-grade b{margin-right:8px;font-size:20px}.self-grade .wrong{color:#b65043;border-color:#e0b5ae}.self-grade .right{color:#4e7658;border-color:#acc4b2}.self-grade button:hover{transform:translateY(-1px);box-shadow:0 6px 15px #22313b12}.skip-next{margin-top:24px}.skip-next p{color:var(--muted);font-size:12px}.skip-next .reveal{margin-top:8px}@media (max-width:600px){.form-pair,.answer-compare{grid-template-columns:1fr}.material-modal{padding:21px}.study-mode-tabs button{padding:12px}.study-mode-tabs button b{font-size:12px}.review-page{padding-left:12px;padding-right:12px}}.course-picker strong{margin-top:2px;font-size:14px;display:block}.row-menu{position:relative}.row-menu>button{letter-spacing:2px;font-weight:700}.menu-pop{border:1px solid var(--line);z-index:8;background:#fff;border-radius:9px;width:130px;padding:6px;position:absolute;top:30px;right:0;box-shadow:0 12px 30px #1d2d3722}.menu-pop button{text-align:left;width:100%;color:var(--ink);border-radius:6px;padding:9px 10px;display:block}.menu-pop button:hover{background:#f2eee6}.menu-pop .danger{color:#b84d3e}.cloze-prompt{max-width:680px;margin:42px auto 35px;font:28px/1.65 Georgia,Yu Mincho,serif}.cloze-prompt span{color:#8a958f;margin-top:10px;font:14px Yu Gothic UI,sans-serif;display:block}.typed-answer input{border:1px solid var(--line);background:#fff;border-radius:10px;outline:none;width:100%;padding:14px;font-size:17px}.typed-answer input:focus{border-color:var(--red);box-shadow:0 0 0 3px #d85d4917}.empty-study{text-align:center;border:1px solid var(--line);background:#fffdf9;border-radius:16px;padding:80px 20px}.empty-study>span{color:#56745c;background:#e3ece3;border-radius:50%;place-items:center;width:55px;height:55px;margin:auto;font-size:25px;display:grid}.empty-study h2{margin:18px 0 8px;font:24px serif}.empty-study p{color:#7a867f;font-size:13px}.session-choice .extra-batch{background:var(--red);border-color:var(--red);color:#fff}.session-choice .extra-batch:hover{border-color:var(--red)}.finish-actions .extra-batch strong{margin-right:6px}.batch-remaining{color:var(--muted);margin:-18px 0 22px;font-size:12px}.batch-remaining strong{color:var(--ink);margin:0 3px;font-size:16px}.study-mode-tabs button:disabled{cursor:not-allowed;opacity:.7}.field-note{color:#7b8781;margin-top:9px;display:block}.session-finished{text-align:center;border:1px solid var(--line);background:#fffdf9;border-radius:18px;padding:58px 35px;box-shadow:0 15px 35px #26333b10}.finish-mark{color:#4d7457;background:#dfeadf;border-radius:50%;place-items:center;width:62px;height:62px;margin:auto;font-size:28px;display:grid}.session-finished>p{color:var(--red);letter-spacing:.12em;margin:20px 0 7px;font-size:12px;font-weight:700}.session-finished h2{margin:0;font:27px serif}.session-summary{justify-content:center;gap:65px;margin:35px 0;display:flex}.session-summary div{min-width:90px}.session-summary strong,.session-summary span{display:block}.session-summary strong{font:36px serif}.session-summary span{color:#7c8882;font-size:11px}.finish-actions{flex-wrap:wrap;justify-content:center;gap:9px;display:flex}.finish-actions button{border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:9px;padding:13px 18px;font-weight:700}.finish-actions .primary{background:var(--red);color:#fff;border-color:var(--red)}.self-grade button:disabled{opacity:.5;cursor:wait}.app-loading{min-height:100vh;color:var(--muted);place-content:center;justify-items:center;gap:14px;display:grid}.app-loading p{margin:0}.app-loading button{border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:8px;padding:10px 16px}.update-banner{z-index:30;color:#fff;background:#20303b;border-radius:10px;align-items:center;gap:14px;padding:12px 14px;font-size:12px;display:flex;position:fixed;bottom:22px;right:22px;box-shadow:0 12px 30px #17242d44}.update-banner button{background:var(--red);color:#fff;border:0;border-radius:7px;padding:8px 12px;font-weight:700}.library-context{align-items:center;gap:12px;display:flex}.library-context small,.library-context strong{display:block}.library-context small{color:#8b9690;font-size:10px}.library-context strong{margin-top:2px;font-size:14px}.level-overview{border:1px solid var(--line);background:#fbf9f3;border-radius:14px;margin:20px 0 24px;padding:25px 28px}.level-overview-title{justify-content:space-between;align-items:end;display:flex}.level-overview-title p{color:var(--red);letter-spacing:.14em;margin:0;font-size:11px;font-weight:700}.level-overview-title h2{margin:5px 0 0;font:23px serif}.level-overview-title>span{color:var(--muted);font-size:11px}.level-segments{background:#e4e0d7;border-radius:20px;width:100%;height:15px;margin:20px 0 15px;display:flex;overflow:hidden}.level-segments i{border-right:2px solid #fbf9f3;min-width:3px;height:100%;display:block}.level-legend{grid-template-columns:repeat(6,1fr);gap:8px;display:grid}.level-legend>div{grid-template-columns:9px 1fr auto;align-items:center;gap:6px;font-size:11px;display:grid}.level-legend i{border-radius:50%;width:8px;height:8px}.level-legend strong{font:16px serif}.level-legend small{color:#929b96;grid-column:2/4}.table-row{grid-template-columns:1.8fr .55fr .8fr 1fr .85fr 40px}.item-level{align-items:center;gap:8px;display:flex}.item-level>b{white-space:nowrap;font-size:11px}.item-level>span{background:#e1ddd3;border-radius:6px;width:46px;height:5px;display:block;overflow:hidden}.item-level i{background:#64836d;border-radius:6px;height:100%;display:block}.session-choice{text-align:center;border:1px solid var(--line);background:#fffdf9;border-radius:18px;padding:58px 30px}.session-choice>p{color:var(--red);letter-spacing:.14em;font-size:11px;font-weight:700}.session-choice h2{margin:7px 0 30px;font:28px serif}.session-choice>div{grid-template-columns:1fr 1fr;gap:12px;max-width:520px;margin:auto;display:grid}.session-choice button{border:1px solid var(--line);color:var(--ink);background:#fbf9f3;border-radius:12px;padding:22px}.session-choice button:hover{border-color:var(--red);transform:translateY(-1px)}.session-choice strong,.session-choice span{display:block}.session-choice strong{font:34px serif}.session-choice span{color:var(--muted);margin-top:5px;font-size:12px}.question-shell{display:block}.rating-four{grid-template-columns:repeat(4,1fr);gap:8px;max-width:600px;margin:16px auto 0;display:grid}.rating-four button{border:1px solid var(--line);color:#53615b;background:#fff;border-radius:9px;padding:12px 6px}.rating-four b,.rating-four span{display:block}.rating-four b{margin-bottom:4px;font-size:19px}.rating-four span{font-size:11px;font-weight:700}.rating-four button:hover{transform:translateY(-1px);box-shadow:0 6px 15px #22313b12}.rating-four .again{color:#b64f42;border-color:#e5b8b0}.rating-four .hard{color:#9a712f;border-color:#ddc99f}.rating-four .good{color:#4f7658;border-color:#b4c9b9}.rating-four .easy{color:#426f76;border-color:#aec8cc}.rating-four button:disabled,.review-top button:disabled{opacity:.5;cursor:wait}.session-summary{gap:28px}.empty-study .finish-actions{margin-top:24px}.modal-backdrop{isolation:isolate}.modal-scrim{z-index:0;background:0 0;border:0;width:100%;height:100%;position:absolute;inset:0}.material-modal{z-index:1;position:relative}.heading-actions{align-items:center;gap:9px;display:flex}.heading-actions>button:first-child{border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:9px;padding:11px 16px;font-weight:700}.bulk-modal textarea{min-height:300px;font:12px/1.55 Consolas,Monaco,monospace}.bulk-modal{width:min(720px,100%)}.select-table-row{grid-template-columns:34px 1.8fr .55fr .8fr 1fr .85fr 40px}.select-table-row input{width:16px;height:16px;accent-color:var(--red);vertical-align:middle}.table-row.selected{background:#f9ebe5}.selection-count{color:#617069;white-space:nowrap;align-self:center;font-size:12px}.toolbar .bulk-delete{color:#a33e31;background:#fff4f1;border-color:#d99a8e;font-weight:700}.toolbar .bulk-delete:disabled{opacity:.55;cursor:wait}html[data-theme=dark]{--paper:#172027;--ink:#edf1ed;--muted:#a9b5af;--line:#3c4949;--white:#202a30}html[data-theme=dark] body{color:#edf1ed;background:#172027}html[data-theme=dark] .sidebar,html[data-theme=dark] .topbar,html[data-theme=dark] .mobile-nav{background:#1c262c;border-color:#3c4949}html[data-theme=dark] .level-overview,html[data-theme=dark] .stats>div,html[data-theme=dark] .table,html[data-theme=dark] .settings section,html[data-theme=dark] .review-card,html[data-theme=dark] .session-choice,html[data-theme=dark] .session-finished,html[data-theme=dark] .empty-study,html[data-theme=dark] .material-modal{background:#202a30;border-color:#3c4949}html[data-theme=dark] .table-row.head,html[data-theme=dark] .toolbar button,html[data-theme=dark] .tags span{background:#273239}html[data-theme=dark] input,html[data-theme=dark] textarea,html[data-theme=dark] select,html[data-theme=dark] .toolbar label,html[data-theme=dark] .rating-four button,html[data-theme=dark] .answer-compare section,html[data-theme=dark] .finish-actions button,html[data-theme=dark] .session-choice button{color:#edf1ed;background:#182229;border-color:#465456}html[data-theme=dark] .answer-compare section.correct{background:#24372b}html[data-theme=dark] .menu-pop{background:#202a30;border-color:#465456}html[data-theme=dark] .menu-pop button{color:#edf1ed}html[data-theme=dark] .menu-pop button:hover{background:#2a363d}html[data-theme=dark] .level-segments{background:#344146}html[data-theme=dark] .level-segments i{border-color:#202a30}@media (prefers-color-scheme:dark){html[data-theme=system]{--paper:#172027;--ink:#edf1ed;--muted:#a9b5af;--line:#3c4949;--white:#202a30}html[data-theme=system] body{color:#edf1ed;background:#172027}html[data-theme=system] .sidebar,html[data-theme=system] .topbar,html[data-theme=system] .mobile-nav{background:#1c262c}html[data-theme=system] .level-overview,html[data-theme=system] .stats>div,html[data-theme=system] .table,html[data-theme=system] .settings section,html[data-theme=system] .review-card,html[data-theme=system] .session-choice,html[data-theme=system] .session-finished,html[data-theme=system] .empty-study{background:#202a30}}.toggle-line{justify-content:space-between;align-items:center;gap:24px;display:flex!important}.toggle-line>span{font-weight:700}.toggle-line>span small{color:#8c9691;margin-top:5px;font-weight:400;display:block}.settings .toggle-line>input{width:44px;height:24px;accent-color:var(--red);margin:0}.explanation-markdown{text-align:left;color:#52605a;background:#f7f3eb;border-radius:10px;max-width:560px;margin:22px auto;padding:18px 22px;font-size:13px;line-height:1.7}.explanation-markdown>:first-child{margin-top:0}.explanation-markdown>:last-child{margin-bottom:0}.explanation-markdown code{background:#e9e3d8;border-radius:4px;padding:2px 5px}html[data-theme=dark] .explanation-markdown{color:#dce3df;background:#182229}.today-card{grid-template-columns:minmax(0,1fr) minmax(330px,.85fr);min-height:300px}.today-main{flex-direction:column;justify-content:center;align-items:flex-start;display:flex}.today-main .primary{margin-top:24px}.today-workload{background:#ffffff18;border-left:1px solid #ffffff18;grid-template-columns:1fr 1fr;gap:1px;display:grid}.today-workload article{background:#ffffff08;flex-direction:column;justify-content:center;padding:32px;display:flex}.today-workload article>span{color:#cbd4d0;letter-spacing:.05em;font-size:11px;font-weight:700}.today-workload strong{color:#fff;margin:10px 0;font:48px Georgia,serif}.today-workload strong small{color:#aebbb6;margin-left:4px;font:12px sans-serif}.today-workload p{color:#9fada8;margin:0;font-size:10px;line-height:1.7}.today-workload p b{color:#fff;font-size:13px}.forecast-card,.level-overview,.progress-history{border:1px solid var(--line);background:#fbf9f3;border-radius:14px;margin:24px 0;padding:27px 30px}.chart-head{justify-content:space-between;align-items:end;gap:20px;display:flex}.chart-head p{color:var(--red);letter-spacing:.14em;margin:0;font-size:11px;font-weight:700}.chart-head h2{margin:5px 0 0;font:23px serif}.chart-legend{color:var(--muted);gap:17px;font-size:10px;display:flex}.chart-legend span{align-items:center;gap:6px;display:flex}.chart-legend i{border-radius:3px;width:9px;height:9px}.chart-legend .learning,.forecast-chart .learning{background:#db8b72}.chart-legend .mature,.forecast-chart .mature{background:#587a72}.forecast-chart{grid-template-columns:repeat(7,1fr);gap:14px;margin-top:25px;display:grid}.forecast-chart article{text-align:center;min-width:0}.forecast-chart article>strong{margin-bottom:6px;font:19px Georgia,serif;display:block}.forecast-track{background:#e8e3da;border-radius:8px 8px 4px 4px;align-items:flex-end;max-width:42px;height:126px;margin:auto;display:flex;overflow:hidden}.forecast-track>div{flex-direction:column;width:100%;min-height:2px;display:flex}.forecast-track i{width:100%;min-height:0;display:block}.forecast-chart article>small{color:var(--muted);white-space:nowrap;margin-top:8px;font-size:9px;display:block}.chart-empty{color:var(--muted);justify-items:center;gap:5px;padding:38px 15px;display:grid}.chart-empty>span{color:#54725c;background:#e1ebe2;border-radius:50%;place-items:center;width:34px;height:34px;font-size:17px;display:grid}.chart-empty strong{color:var(--ink);margin-top:5px;font-size:13px}.chart-empty small{font-size:10px}.chart-head>div:first-child>small{color:var(--muted);margin-top:5px;font-size:10px;display:block}.chart-legend .confirmed{background:#587a72}.chart-legend .projected{background:repeating-linear-gradient(135deg,#d9ab78 0 3px,#f0d7b8 3px 6px)}.forecast-chart i.projected{opacity:.72;background-image:repeating-linear-gradient(135deg,#fff0 0 4px,#ffffff80 4px 7px)}.forecast-split{height:23px;color:var(--muted);font-size:8px;line-height:1.3;display:block}.forecast-track{height:112px}.forecast-chart article>strong{margin-bottom:2px}.library-totals{grid-template-columns:repeat(4,1fr);gap:10px;margin:22px 0;display:grid}.library-totals>div{border:1px solid var(--line);background:var(--white);border-radius:10px;padding:14px 16px}.library-totals strong,.library-totals span{display:block}.library-totals strong{font:25px Georgia,serif}.library-totals span{color:var(--muted);margin-top:4px;font-size:9px}.level-scale-head{border-top:1px solid var(--line);justify-content:space-between;align-items:center;padding-top:17px;font-size:11px;font-weight:700;display:flex}.level-scale-head small{color:var(--muted);font-weight:400}.history-legend{align-items:center;display:flex}.history-legend i{background:var(--red);border-radius:3px;width:9px;height:9px;margin-right:5px;display:inline-block}.history-legend em{color:#55735d;font-style:normal;font-weight:700}.progress-days{background:linear-gradient(to top,transparent 24%,var(--line) 25%,transparent 26%,transparent 49%,var(--line) 50%,transparent 51%,transparent 74%,var(--line) 75%,transparent 76%);border-radius:10px;padding:12px 8px 16px}html[data-theme=dark] .forecast-card,html[data-theme=dark] .library-totals>div{background:#202a30;border-color:#3c4949}html[data-theme=dark] .forecast-track{background:#344146}@media (prefers-color-scheme:dark){html[data-theme=system] .forecast-card,html[data-theme=system] .library-totals>div{background:#202a30}html[data-theme=system] .forecast-track{background:#344146}}@media (max-width:850px){.today-card{grid-template-columns:1fr}.today-workload{border-top:1px solid #ffffff18;border-left:0}.today-main{padding:32px 26px}.forecast-card,.level-overview,.progress-history{padding:23px 20px}.level-overview-title{align-items:start}.level-overview-title>span{text-align:right;max-width:190px}}@media (max-width:600px){.today-workload{grid-template-columns:1fr 1fr}.today-workload article{padding:22px 18px}.today-workload strong{font-size:37px}.chart-head{flex-direction:column;align-items:start}.chart-legend{align-self:flex-start}.forecast-card{padding:22px 14px}.forecast-chart{gap:4px}.forecast-track{max-width:28px;height:100px}.forecast-chart article>small{font-size:8px}.forecast-split{height:28px;font-size:7px}.library-totals{grid-template-columns:1fr 1fr}.level-overview-title{display:block}.level-overview-title>span{text-align:left;max-width:none;margin-top:5px;display:block}}@media (max-width:850px){.level-legend{grid-template-columns:repeat(3,1fr)}.table-row{min-width:760px}.level-overview{padding:22px 18px}}@media (max-width:600px){.session-choice>div,.rating-four{grid-template-columns:1fr 1fr}.level-legend{grid-template-columns:repeat(2,1fr)}.session-summary{gap:12px}.session-summary div{min-width:70px}.finish-actions{flex-direction:column}.finish-actions button{width:100%}}.daily-progress{color:var(--muted);margin-top:20px;font-size:11px;display:block}.paper b{border-radius:13px;width:38px;height:26px;font:9px sans-serif}.factual-stats{grid-template-columns:repeat(2,1fr)}.progress-history{border:1px solid var(--line);background:#fbf9f3;border-radius:14px;margin:0 0 24px;padding:25px 28px}.progress-history-head{justify-content:space-between;align-items:end;display:flex}.progress-history-head p{color:var(--red);letter-spacing:.14em;margin:0;font-size:11px;font-weight:700}.progress-history-head h2{margin:5px 0 0;font:23px serif}.progress-history-head>span{color:var(--muted);font-size:11px}.progress-days{grid-template-columns:repeat(7,1fr);gap:10px;margin:24px 0;display:grid}.progress-days article{text-align:center;min-width:0}.progress-days article>small{color:var(--muted);white-space:nowrap;font-size:9px;display:block}.activity-track{background:#e7e2d9;border-radius:12px;align-items:flex-end;width:18px;height:78px;margin:9px auto 7px;display:flex;overflow:hidden}.activity-track i{background:var(--red);border-radius:12px;width:100%;min-height:0;display:block}.progress-days strong,.progress-days span{display:block}.progress-days strong{font:19px serif}.progress-days span{color:var(--muted);font-size:9px}.progress-days em{color:#55735d;background:#e3ece3;border-radius:12px;margin-top:5px;padding:3px 6px;font-size:8px;font-style:normal;display:inline-block}.learned-history{border-top:1px solid var(--line);padding-top:18px}.learned-history h3{margin:0 0 13px;font:17px serif}.learned-history>p{color:var(--muted);margin:0;font-size:11px}.learned-day{grid-template-columns:85px 1fr;align-items:start;gap:12px;margin-top:10px;display:grid}.learned-day time{color:var(--muted);padding-top:7px;font-size:10px}.learned-day>div{flex-wrap:wrap;gap:7px;display:flex}.learned-day>div>span{background:#eee9df;border-radius:8px;align-items:center;gap:8px;padding:6px 9px;display:flex}.learned-day b{font:14px Georgia,serif}.learned-day small{color:#5f7567;font-size:9px;font-weight:700}html[data-theme=dark] .progress-history{background:#202a30;border-color:#3c4949}html[data-theme=dark] .activity-track{background:#344146}html[data-theme=dark] .learned-day>div>span{background:#2a353b}@media (prefers-color-scheme:dark){html[data-theme=system] .progress-history{background:#202a30}html[data-theme=system] .activity-track{background:#344146}html[data-theme=system] .learned-day>div>span{background:#2a353b}}@media (max-width:600px){.progress-history{padding:22px 16px}.progress-history-head{align-items:start}.progress-history-head>span{display:none}.progress-days{gap:3px}.progress-days article>small{font-size:8px}.activity-track{width:13px}.learned-day{grid-template-columns:1fr}.learned-day time{padding:0}.factual-stats{grid-template-columns:1fr}}.next-review-notice{border:1px solid var(--line);color:var(--muted);background:#f4f0e8;border-radius:10px;align-items:center;gap:11px;margin:-10px 0 22px;padding:12px 16px;display:flex}.next-review-notice>span{width:30px;height:30px;color:var(--red);background:#e5ddd0;border-radius:50%;place-items:center;font-size:18px;display:grid}.next-review-notice small,.next-review-notice strong{display:block}.next-review-notice small{letter-spacing:.12em;font-size:9px}.next-review-notice strong{color:var(--ink);margin-top:2px;font-size:12px}.next-review-notice.available{background:#edf3ec;border-color:#b7cbb9}.next-review-notice.available>span{color:#4f7658;background:#d9e7d9}.rating-four small{color:var(--muted);margin-top:5px;font-size:9px;font-weight:500;display:block}html[data-theme=dark] .next-review-notice{background:#273239}html[data-theme=dark] .next-review-notice.available{background:#24372b}@media (prefers-color-scheme:dark){html[data-theme=system] .next-review-notice{background:#273239}html[data-theme=system] .next-review-notice.available{background:#24372b}}.profile-gate{background:radial-gradient(circle at 50% 0,#fffdf8 0,var(--paper) 58%);place-items:center;min-height:100vh;margin-left:0;padding:24px;display:grid}.profile-gate>section{background:var(--white);border:1px solid var(--line);text-align:center;border-radius:18px;width:min(470px,100%);padding:42px;box-shadow:0 24px 70px #23313b18}.profile-gate .brand-mark{margin:auto}.profile-gate>section>p{letter-spacing:.08em;margin:13px 0 30px;font-family:serif;font-weight:700}.profile-gate h1{margin:0 0 10px;font:30px serif}.profile-gate>section>small{color:var(--muted);font-size:12px;line-height:1.8;display:block}.profile-gate form{text-align:left;margin-top:28px}.profile-gate label{font-size:12px;font-weight:700;display:block}.profile-gate input{border:1px solid var(--line);color:#192733;background:#fff;border-radius:9px;outline:none;width:100%;margin-top:8px;padding:13px;display:block}.profile-gate input:focus{border-color:var(--red);box-shadow:0 0 0 3px #d85d4917}.profile-gate .primary{width:100%;margin-top:16px}.profile-gate .form-error{margin-bottom:0}.profile-gate em{color:var(--muted);margin-top:20px;font-size:10px;font-style:normal;display:block}.profile-switch p{color:var(--muted);font-size:13px}.profile-switch button{border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:8px;padding:10px 14px}@media (max-width:600px){.profile-gate>section{padding:32px 22px}.profile-gate h1{font-size:27px}}.local-reset p{max-width:720px;color:var(--muted);font-size:12px;line-height:1.7}.local-reset button{color:#a33e31;background:#fff4f1;border:1px solid #d99a8e;border-radius:8px;padding:10px 14px;font-weight:700}.local-reset button:disabled{opacity:.55;cursor:wait}html[data-theme=dark] .local-reset button{color:#efb3a8;background:#342724;border-color:#80584f}.sync-indicator{border:1px solid var(--line);background:var(--white);color:#69756f;border-radius:999px;align-items:center;gap:8px;margin-left:auto;padding:7px 10px;font-size:11px;display:flex}.sync-indicator.syncing{color:#536f76}.sync-indicator.offline,.sync-indicator.error{color:#b55242;border-color:#e3b7ae}.sync-indicator button{color:inherit;background:0 0;border:0;padding:0;font-size:11px;text-decoration:underline}@media (max-width:600px){.sync-indicator{max-width:190px}.sync-indicator span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}}@media (max-width:700px){.update-banner{justify-content:space-between;bottom:76px;left:14px;right:14px}}
