:root{--bg:#f6f7f4;--surface:#fff;--surface2:#f0f3ef;--ink:#263a36;--muted:#697671;--accent:#315f59;--accent-soft:#e5efeb;--line:#e0e6df;--m:#376ba5;--f:#b45062;--n:#377a54;--shadow:0 16px 60px #193b2e0b;--serif:Georgia,'Times New Roman',serif;color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Hiragino Kaku Gothic ProN','Noto Sans JP',sans-serif}
:root[data-theme=dark]{--bg:#17221f;--surface:#202e29;--surface2:#263731;--ink:#e4ede6;--muted:#a3b6ac;--accent:#9cc8c1;--accent-soft:#29443c;--line:#34483e;--m:#91b8ed;--f:#f1a0ae;--n:#8bcca3;--shadow:none;color-scheme:dark}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.65}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer;border:0;color:inherit;background:none}button:disabled{cursor:default;opacity:.45}a{color:var(--accent);text-underline-offset:3px}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:3px}h1,h2,h3,p{margin-top:0}h1{font-size:32px;line-height:1.4;letter-spacing:-.04em;font-weight:600}h2{font-size:20px;font-weight:600;letter-spacing:-.025em}h3{font-size:16px}p{margin-bottom:12px}.muted,.sub{color:var(--muted)}small,.small{font-size:12px}.eyebrow{font-size:11px;letter-spacing:.14em;color:var(--accent);font-weight:650}.skip{position:absolute;left:8px;top:-80px;z-index:50;padding:10px;background:var(--surface)}.skip:focus{top:8px}
.layout{max-width:1600px;margin:auto;display:grid;grid-template-columns:244px minmax(0,1fr);min-height:100dvh}.sidebar{position:sticky;top:0;height:100dvh;padding:42px 25px 20px;border-right:1px solid var(--line);display:flex;flex-direction:column;background:var(--surface)}.brand{text-decoration:none;display:flex;flex-direction:column;align-items:flex-start;gap:14px}.brand-mark{font:30px var(--serif);letter-spacing:-3px;background:var(--accent);color:var(--surface);border-radius:13px;padding:8px 14px;line-height:1.5}.brand-mark span{padding:0 3px}.brand strong{font:24px var(--serif);letter-spacing:-.7px;color:var(--ink)}.brand-note{font-size:11px;color:var(--muted);margin:8px 0 38px}.nav-link{display:flex;align-items:center;gap:12px;min-height:54px;border-radius:10px;text-decoration:none;color:var(--muted);margin-bottom:6px;padding:10px 14px}.nav-link svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.6;flex:none}.nav-link.active{background:var(--accent-soft);color:var(--accent);font-weight:600}.nav-link .nav-ja{display:block;font-size:10px;line-height:1.4;opacity:.8}.sidebar-bottom{margin-top:auto;font-size:11px;color:var(--muted)}.sidebar-bottom p{margin-top:24px;line-height:2}.online-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--n);margin-right:7px}.content{min-width:0}.topbar{height:85px;border-bottom:1px solid var(--line);padding:0 6%;display:flex;align-items:center;justify-content:space-between}.desktop-eyebrow{font-size:10px;color:var(--muted);letter-spacing:.15em}.top-actions{display:flex;gap:8px}.icon-button{min-width:44px;min-height:44px;display:inline-flex;justify-content:center;align-items:center;border-radius:50%;font-size:23px;color:var(--accent)}.icon-button:hover{background:var(--accent-soft)}.mobile-brand,#mobile-nav{display:none}main{max-width:1110px;padding:38px 6% 60px;margin:auto;min-height:calc(100dvh - 170px)}.page-footer{font:14px var(--serif);color:var(--muted);border-top:1px solid var(--line);margin:0 6%;padding:22px 0;display:flex;gap:14px;justify-content:space-between}.page-footer span{font:10px -apple-system,sans-serif}
.intro{margin-bottom:27px}.intro h1{margin:8px 0 8px;font-size:30px}.intro p{color:var(--muted);font-size:13px}.search-wrap{position:relative;margin-bottom:14px}.search-input{width:100%;min-height:65px;background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:16px 92px 16px 52px;font-size:17px;box-shadow:var(--shadow);color:var(--ink)}.search-symbol{position:absolute;left:20px;top:21px;width:21px;height:21px;fill:none;stroke:var(--accent);stroke-width:1.8}.search-clear{position:absolute;right:8px;top:10px}.key-hint{position:absolute;right:57px;top:23px;font-size:10px;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:0 5px}.search-meta{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:11px;color:var(--muted);margin-bottom:28px}.text-button{font-size:12px;color:var(--accent);min-height:40px;padding:4px 8px;text-decoration:none}.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:28px 0 14px}.section-head h2{margin:0;font-size:18px}.section-head .count{font-size:11px;color:var(--muted)}.home-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(230px,1fr);gap:22px}.discovery-card{background:#315f59;border-radius:15px;padding:26px;color:#fff;display:flex;flex-direction:column;align-items:flex-start;min-height:225px;position:relative;overflow:hidden}.discovery-card .eyebrow{color:#c9dfd5}.discovery-card h2{font-size:25px;margin:15px 0 7px;font-weight:500}.discovery-card p{font-size:12px;color:#deebe6;max-width:240px}.discovery-card .round-mark{position:absolute;right:-24px;top:28px;width:140px;height:140px;border:1px solid #ffffff27;border-radius:50%;transform:rotate(-20deg);font:80px var(--serif);text-align:center;color:#ffffff1c}.button{min-height:46px;padding:10px 18px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid var(--line);border-radius:9px;font-size:13px;font-weight:550;background:var(--surface);text-decoration:none;color:var(--ink)}.button.primary{background:var(--accent);border-color:var(--accent);color:var(--bg)}.button.light{background:#fff;color:#315f59;border-color:#fff;margin-top:auto}.button.ghost{background:transparent}.button.wide{width:100%}.button:hover{filter:brightness(.97)}.download-card{border:1px solid var(--line);border-radius:15px;background:var(--surface);padding:25px;display:flex;flex-direction:column;align-items:flex-start}.download-card h3{margin:12px 0 7px}.download-card p{font-size:12px;color:var(--muted)}.download-card .button{width:100%;margin-top:auto}.cloud-mark{font-size:22px;color:var(--accent)}.themes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.theme-card{text-align:left;min-height:92px;background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:14px 15px;transition:transform .15s,border-color .15s}.theme-card:hover{transform:translateY(-2px);border-color:var(--accent)}.theme-icon{color:var(--accent);font-size:18px;font-weight:400;display:block;line-height:1.2;margin-bottom:10px}.theme-name{font-size:12px;display:block;font-weight:550}.theme-count{display:block;color:var(--muted);font-size:10px;margin-top:3px}.tag{display:inline-flex;align-items:center;font-size:10px;line-height:1.5;padding:4px 8px;border-radius:5px;background:var(--surface2);color:var(--muted);margin:0 4px 4px 0}.tag.accent{background:var(--accent-soft);color:var(--accent)}.tag.warn{background:#f5eadd;color:#83592e}.filters{display:flex;gap:9px;flex-wrap:wrap;align-items:center;margin:14px 0}.filters select,.field select{max-width:100%;padding:10px 32px 10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);min-height:44px;font-size:12px}.filters>label{font-size:11px;color:var(--muted)}.results-caption{font-size:12px;color:var(--muted);margin:16px 0 12px}.results{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden}.entry-row{display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--line);min-height:105px;padding:6px 13px 6px 22px}.entry-row:last-child{border-bottom:0}.entry-open{text-align:left;flex:1;min-width:0;display:block;padding:12px 0}.entry-word{display:block;font:24px/1.3 var(--serif);overflow-wrap:anywhere;margin-bottom:7px;color:var(--ink)}.entry-word .article{font-size:17px;margin-right:6px}.entry-translation{display:block;font-size:13px;margin-bottom:2px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.entry-secondary{display:block;font-size:11px;color:var(--muted);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.entry-tools{display:flex;align-items:center}.entry-tools .icon-button{font-size:20px}.gender-m{color:var(--m)}.gender-f{color:var(--f)}.gender-n{color:var(--n)}.star.saved{color:#ab7a29}.list-end{margin:16px auto;display:flex}.empty{border:1px dashed var(--line);border-radius:14px;padding:32px;text-align:center;background:var(--surface);color:var(--muted)}.empty h2{color:var(--ink)}.notice{font-size:12px;padding:16px 18px;background:var(--accent-soft);border-radius:9px;color:var(--accent);line-height:1.8}.notice.warning,.banner.warning{color:#916638;background:#f5ecdd}.banner{padding:12px 6%;display:flex;justify-content:space-between;gap:12px;align-items:center;background:var(--accent-soft);font-size:12px}.banner[hidden]{display:none}.progress{width:100%;height:6px;accent-color:var(--accent);margin:10px 0}.status-text{font-size:11px;color:var(--muted)}
.detail-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.detail-top .text-button{padding-left:0}.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:24px;align-items:start}.word-hero{padding:28px 30px;background:var(--surface);border:1px solid var(--line);border-radius:15px;margin-bottom:18px}.word-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}.word-heading h1{font:46px/1.22 var(--serif);letter-spacing:-.025em;overflow-wrap:anywhere;margin:12px 0 16px}.word-heading h1 .article{font-size:25px;display:block;margin-bottom:3px}.hero-meaning{font-size:19px;line-height:1.6;margin-bottom:7px}.hero-en{font-size:13px;color:var(--muted)}.word-hero .audio-main{margin-top:12px}.detail-section{background:var(--surface);border:1px solid var(--line);padding:23px 25px;border-radius:13px;margin-bottom:16px}.detail-section h2{font-size:16px;margin-bottom:17px}.meaning{display:flex;gap:14px;margin-bottom:19px}.meaning:last-child{margin-bottom:0}.meaning-no{font:20px var(--serif);color:var(--muted);min-width:21px}.meaning-content{min-width:0}.meaning-content p{margin-bottom:5px;overflow-wrap:anywhere}.meaning-content .en{font-size:12px;color:var(--muted)}.meaning-content .note{font-size:11px;color:var(--muted);padding-top:4px}.form-row{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding:8px 0;min-height:56px}.form-row:first-child{border-top:0}.form-label{min-width:82px;font-size:11px;color:var(--muted)}.form-de{flex:1;font:19px/1.4 var(--serif);overflow-wrap:anywhere}.form-de .pronoun{font:12px -apple-system,sans-serif;display:inline-block;min-width:54px;color:var(--muted)}details{margin-top:10px}summary{cursor:pointer;min-height:44px;padding:10px 0;font-size:13px;color:var(--accent)}.example{border-left:2px solid var(--accent);padding:0 0 0 17px;margin:17px 0 22px}.example-de{font:21px/1.5 var(--serif);margin:0 0 7px;overflow-wrap:anywhere}.example-ja{font-size:13px;margin-bottom:3px}.example-en{font-size:12px;color:var(--muted)}.example-actions{display:flex;align-items:center;gap:5px}.source-note{font-size:10px;color:var(--muted);overflow-wrap:anywhere;margin:7px 0}.source-note a{color:inherit}.detail-aside{position:sticky;top:24px}.aside-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:17px;margin-bottom:16px}.aside-card h3{font-size:12px}.aside-card p{font-size:11px;color:var(--muted)}.aside-card textarea{font-size:12px;min-height:125px}.checkline{font-size:12px;display:flex;gap:9px;align-items:center;margin:10px 0;min-height:34px}.checkline input{accent-color:var(--accent);width:17px;height:17px}.shuffle-dock{position:fixed;bottom:20px;left:calc(244px + (100vw - 244px)/2);transform:translateX(-50%);z-index:10;display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);box-shadow:0 5px 35px #0002;padding:8px;border-radius:14px;max-width:calc(100vw - 280px);width:480px}.shuffle-dock .primary{flex:1;min-height:49px}.shuffle-view{padding-bottom:90px}.shuffle-dock .history-count{font-size:10px;color:var(--muted);min-width:35px;text-align:center}.relation-row{display:flex;align-items:center;gap:7px;margin:8px 0}.relation-link{display:block;text-align:left;flex:1;min-height:52px}.relation-link strong{font:20px var(--serif);display:block}.relation-link span{font-size:12px;color:var(--muted)}.broken-word{font-size:12px;color:var(--muted)}
.field{margin:15px 0}.field>label{display:block;font-size:12px;color:var(--muted);margin-bottom:7px}input[type=text],textarea,.field input{width:100%;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);padding:11px 12px}textarea{resize:vertical;min-height:110px;line-height:1.8}.field textarea.large{min-height:160px}.section-card{padding:25px;border:1px solid var(--line);border-radius:14px;background:var(--surface);margin-bottom:18px}.section-card h2{font-size:18px}.section-card p{font-size:12px;color:var(--muted)}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}.action-row{display:flex;gap:10px;flex-wrap:wrap}.divider{height:1px;background:var(--line);margin:20px 0}.stat-row{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:9px 0;font-size:12px}.stat-row strong{font-variant-numeric:tabular-nums}.study-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:25px 0}.study-stat{background:var(--surface);padding:20px;border:1px solid var(--line);border-radius:12px}.study-stat strong{font:33px var(--serif);display:block;color:var(--accent)}.study-stat span{font-size:11px;color:var(--muted)}.flashcard{width:100%;min-height:330px;padding:45px 30px;background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;margin:20px 0}.flashcard .question{font:40px/1.35 var(--serif);overflow-wrap:anywhere;max-width:100%}.flashcard .answer{font-size:23px;margin-top:28px;padding-top:28px;border-top:1px solid var(--line);width:100%}.flashcard .hint{font-size:12px;color:var(--muted);margin-top:35px}.grade-row{display:grid;grid-template-columns:1fr 1fr;gap:15px}.token-list{display:flex;gap:6px;flex-wrap:wrap;margin:18px 0}.token{min-height:44px;border:1px solid var(--line);border-radius:7px;padding:7px 12px;background:var(--surface);text-align:left;font-family:var(--serif);font-size:19px}.token span{display:block;font:10px -apple-system,sans-serif;color:var(--muted)}.token.unknown{opacity:.6;border-style:dashed}.token-spacer{white-space:pre-wrap}.translation-output{white-space:pre-wrap;font-size:18px;line-height:1.7;margin:20px 0;overflow-wrap:anywhere}.grammar-note{font-size:12px;padding:14px;border-left:2px solid var(--accent);background:var(--surface2);margin:10px 0}.metric{font-size:11px;color:var(--muted)}
#player{position:fixed;z-index:15;right:24px;bottom:25px;width:340px;max-width:calc(100vw - 32px);border:1px solid var(--line);border-radius:13px;padding:11px 14px;background:var(--surface);box-shadow:0 5px 30px #0002}#player[hidden]{display:none}#player .player-title{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:12px}#player .player-controls{display:flex;align-items:center;gap:5px}#player .player-controls select{margin-left:auto;font-size:12px;border:0;background:var(--surface2);padding:8px;border-radius:5px}#toast{position:fixed;bottom:90px;left:50%;transform:translate(-50%,20px);background:var(--ink);color:var(--bg);border-radius:10px;padding:12px 20px;max-width:min(90vw,600px);font-size:12px;z-index:100;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s}#toast.visible{opacity:1;transform:translate(-50%,0)}dialog{border:1px solid var(--line);border-radius:17px;background:var(--surface);color:var(--ink);padding:26px;max-width:600px;width:calc(100vw - 30px);max-height:88dvh;overflow:auto}dialog::backdrop{background:#0a20196b;backdrop-filter:blur(3px)}.modal-heading{display:flex;justify-content:space-between;align-items:center}.modal-heading h2{margin:0}.modal-heading .icon-button{margin-right:-10px}.source-list a{overflow-wrap:anywhere}.loading{padding:35px;color:var(--muted);text-align:center;font-size:13px}.skeleton{background:var(--surface2);height:18px;border-radius:5px;margin-bottom:12px}#splash{position:fixed;inset:0;z-index:200;background:var(--bg);display:none;align-items:center;justify-content:center;flex-direction:column;gap:14px}.splash-title{font:38px var(--serif);color:var(--accent)}#splash span{font-size:12px;color:var(--muted)}#splash.visible{display:flex}.fade-in{animation:appear .2s ease-out}@keyframes appear{from{opacity:.45;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1600px){.shuffle-dock{left:calc(50% + 122px)}}
@media(max-width:1100px){.layout{grid-template-columns:205px minmax(0,1fr)}.sidebar{padding:30px 18px}.detail-layout{grid-template-columns:minmax(0,1fr)}.detail-aside{position:static;display:grid;grid-template-columns:1fr 1fr;gap:14px}.themes{grid-template-columns:repeat(3,minmax(0,1fr))}.shuffle-dock{left:calc(205px + (100vw - 205px)/2);max-width:calc(100vw - 240px)}.word-heading h1{font-size:42px}.home-grid{grid-template-columns:1fr 1fr}.settings-grid{grid-template-columns:1fr}}
@media(max-width:760px){body{font-size:14px}.layout{display:block}.sidebar{display:none}.topbar{height:65px;padding:0 20px;padding-top:env(safe-area-inset-top)}.mobile-brand{display:block;font:23px var(--serif);text-decoration:none;color:var(--ink)}.desktop-eyebrow{display:none}main{padding:27px 20px 95px;min-height:calc(100dvh - 150px)}h1{font-size:27px}.intro{margin-bottom:22px}.intro h1{font-size:25px;line-height:1.5;margin-top:8px}.intro p{font-size:12px}.search-input{font-size:16px;min-height:60px;padding-left:47px;padding-right:50px}.search-symbol{left:17px;top:19px}.search-clear{top:8px}.key-hint{display:none}.search-meta{font-size:10px;margin-bottom:20px;align-items:flex-start}.home-grid{grid-template-columns:1fr;gap:14px}.discovery-card{min-height:207px;padding:23px}.discovery-card h2{font-size:25px}.download-card{display:grid;grid-template-columns:1fr auto;gap:0 15px;padding:18px 20px;align-items:center}.download-card .cloud-mark{display:none}.download-card h3{margin:0 0 4px;font-size:13px}.download-card p{margin:0;font-size:10px}.download-card .button{grid-column:2;grid-row:1/3;font-size:11px;padding:8px 12px;min-height:42px}.themes{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.theme-card{padding:13px 11px;min-height:105px}.theme-name{font-size:11px}.theme-icon{font-size:20px}.section-head{margin-top:25px}.section-head h2{font-size:16px}.entry-row{padding-left:16px;min-height:103px}.entry-word{font-size:23px}.entry-tools{flex-direction:column;gap:0}.entry-tools .icon-button{min-height:40px}.entry-translation{font-size:12px}.entry-secondary{font-size:10px}.filters{gap:6px}.filters select{font-size:11px;padding-left:9px;flex:1;min-width:100px}.page-footer{margin:0 20px;padding-bottom:100px}#mobile-nav{position:fixed;bottom:0;left:0;right:0;z-index:20;display:grid;grid-template-columns:repeat(4,1fr);padding:8px 12px max(8px,env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--line);box-shadow:0 -4px 20px #173b2204}.nav-link{display:flex;flex-direction:column;gap:3px;min-height:46px;padding:4px;margin:0;border-radius:8px;font-size:10px;line-height:1.2}.nav-link .nav-ja{display:none}.nav-link svg{width:21px;height:21px}.nav-link.active{background:transparent;color:var(--accent)}.detail-top{margin-top:-9px;margin-bottom:12px}.word-hero{padding:24px 22px;margin-bottom:14px}.word-heading h1{font-size:38px}.word-heading h1 .article{font-size:22px}.hero-meaning{font-size:18px}.detail-section{padding:20px}.detail-aside{display:block}.shuffle-dock{left:12px;right:12px;bottom:calc(78px + env(safe-area-inset-bottom));width:auto;max-width:none;transform:none;padding:7px;border-radius:12px}.shuffle-view{padding-bottom:190px}.shuffle-dock .primary{font-size:12px}.form-label{min-width:61px;font-size:10px}.form-de{font-size:18px}.form-de .pronoun{min-width:45px}.detail-layout{gap:0}.banner{padding-left:20px;padding-right:20px}#player{bottom:calc(82px + env(safe-area-inset-bottom));right:12px;left:12px;width:auto;max-width:none}body.shuffling #player{bottom:calc(155px + env(safe-area-inset-bottom))}#toast{bottom:calc(155px + env(safe-area-inset-bottom));width:max-content}.study-stats{gap:8px}.study-stat{padding:15px}.study-stat strong{font-size:28px}.study-stat span{font-size:10px}.section-card{padding:20px}.flashcard{min-height:330px;padding:30px 20px}.flashcard .question{font-size:34px}.grade-row .button{font-size:12px}.settings-grid{gap:0}.example-de{font-size:20px}.example-ja{font-size:12px}}
@media(max-width:360px){main{padding-left:14px;padding-right:14px}.intro h1{font-size:22px}.themes{grid-template-columns:repeat(2,minmax(0,1fr))}.entry-word{font-size:21px}.hero-meaning{font-size:16px}.word-heading h1{font-size:33px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}