@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap');
:root{color-scheme:light;--bg:#f8f7fb;--surface:#ffffff;--ink:#211a2b;--muted:#625b6b;--line:#e4deea;--accent:#624095;--accent-dark:#4e307a;--accent-soft:#f0eafa;--gold:#a68ac7;--shadow:0 12px 30px rgba(33,26,43,.08);--radius:18px;font-family:'DM Sans','Yu Gothic','Hiragino Kaku Gothic ProN',Meiryo,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.55}button,input,select{font:inherit}button{cursor:pointer;touch-action:manipulation}button:active{filter:brightness(.94)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #6d47a6;outline-offset:3px}a{color:var(--accent-dark)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;top:-100px;left:12px;z-index:100;background:var(--ink);color:white;padding:10px 14px;border-radius:8px}.skip-link:focus{top:12px}.shell{width:min(100% - 32px,1160px);margin-inline:auto}.site-header{border-bottom:1px solid var(--line);background:var(--bg)}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:76px}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:20px;letter-spacing:-.04em}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:11px;background:var(--accent);color:white;font-size:21px;font-weight:500}.brand-accent{color:var(--accent)}.header-note{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}.view{display:none;min-height:65vh;padding:28px 0 80px}.view.active{display:block}.eyebrow{font-size:12px;letter-spacing:.16em;font-weight:800;color:var(--accent-dark)}h1,h2,h3,p{margin-top:0}h1,h2{font-family:'Plus Jakarta Sans','Yu Gothic',sans-serif;letter-spacing:-.045em}h1{line-height:1.13}.hero{position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1.5fr) minmax(230px,.7fr);gap:24px;align-items:center;background:#f1edfa;border:1px solid #e6ddf2;border-radius:28px;padding:clamp(26px,5vw,64px);min-height:390px}.hero:before{content:"";position:absolute;width:460px;height:460px;border:1px solid #ded1ec;border-radius:50%;right:-60px;top:-170px}.hero-copy{position:relative;z-index:1}.hero h1{font-size:clamp(36px,5vw,64px);margin:18px 0}.hero h1 em{font-style:normal;color:var(--accent)}.hero p{max-width:560px;color:#554b62;font-size:18px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:11px 19px;border:1px solid var(--accent);border-radius:12px;background:var(--surface);color:var(--accent-dark);font-weight:700;text-decoration:none;transition:background .18s,box-shadow .18s}.button:hover{background:var(--accent-soft)}.button.primary{background:var(--accent);color:#fff;box-shadow:0 8px 18px rgba(98,64,149,.17)}.button.primary:hover{background:var(--accent-dark)}.button.secondary{border-color:#bca5d5}.hero-symbol{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;flex-direction:column;aspect-ratio:1;border-radius:50%;background:var(--accent);color:#fff;box-shadow:0 16px 40px #62409544;transform:rotate(-8deg)}.hero-symbol span{font-family:'Yu Mincho','Hiragino Mincho ProN',serif;font-size:clamp(65px,9vw,128px);line-height:1.1}.hero-symbol small{font-size:14px;letter-spacing:.08em}.summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:18px 0 32px}.summary-card,.info-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.summary-card strong{display:block;font-family:'Plus Jakarta Sans',sans-serif;font-size:27px;letter-spacing:-.05em}.summary-card span{color:var(--muted);font-size:14px}.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.step{font-family:'Plus Jakarta Sans',sans-serif;color:var(--accent);font-size:13px;font-weight:800}.info-card h2{font-size:18px;margin:16px 0 8px}.info-card p{color:var(--muted);margin:0}.notice{border-left:4px solid var(--gold);background:#f6f0fc;border-radius:0 12px 12px 0;padding:15px 18px;margin-top:24px;color:#514561}.notice strong{margin-right:8px}.page-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:18px 0 24px}.page-heading h1{font-size:clamp(32px,4vw,47px);margin:7px 0}.page-heading p{color:var(--muted);margin:0}.result-count{color:var(--accent-dark);font-weight:800;font-size:14px;white-space:nowrap}.toolbar{background:var(--surface);border:1px solid var(--line);padding:18px;border-radius:var(--radius);margin-bottom:18px}.search-field{display:flex;align-items:center;gap:10px;min-height:50px;background:#fcfbfe;border:1px solid #d4c7e4;border-radius:11px;padding:0 13px}.search-field svg{width:19px;height:19px;flex:none;fill:none;stroke:var(--muted);stroke-width:2;stroke-linecap:round}.search-field input{width:100%;border:0;outline:0;background:transparent;min-height:48px;font-size:16px;color:var(--ink)}.search-field:focus-within{outline:3px solid #aa86d7;outline-offset:2px}.filter-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:14px}.filter-row label{display:flex;flex-direction:column;gap:5px;font-size:13px;font-weight:700;color:var(--muted)}.filter-row select{width:100%;min-height:46px;padding:8px 10px;border:1px solid #d4c7e4;border-radius:9px;background:white;color:var(--ink);font-size:15px}.word-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.word-card{min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:0 2px 5px rgba(33,26,43,.02)}.word-top{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}.word-jp{font-size:clamp(23px,2.5vw,30px);line-height:1.3;font-weight:700;overflow-wrap:anywhere}.word-reading{color:var(--accent-dark);font-size:15px;margin-top:3px}.word-meaning{margin:12px 0 0;font-size:16px}.word-extra{margin:4px 0 0;font-size:13px;color:var(--muted)}.word-meta{display:flex;gap:6px;flex-wrap:wrap;margin-top:15px}.badge{border:1px solid var(--line);border-radius:100px;padding:3px 8px;color:var(--muted);font-size:12px;font-weight:700}.learned{width:44px;height:44px;flex:none;border:1px solid #c9b2e3;border-radius:11px;background:#f8f4fc;color:var(--accent-dark);font-size:20px;font-weight:800}.learned[aria-pressed=true]{background:var(--accent);color:white;border-color:var(--accent)}.kanji-search{max-width:580px;margin-bottom:18px}.kanji-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(83px,1fr));gap:10px}.kanji-tile{display:flex;align-items:center;justify-content:center;flex-direction:column;min-height:88px;padding:7px;border:1px solid var(--line);border-radius:15px;background:var(--surface);color:var(--ink);transition:background .18s,border-color .18s}.kanji-tile:hover,.kanji-tile:focus-visible{background:var(--accent-soft);border-color:#a68ac7}.kanji-tile strong{font-size:30px;font-weight:600;line-height:1.25}.kanji-tile span{color:var(--muted);font-size:12px}.loading,.empty-state{text-align:center;color:var(--muted);padding:48px 16px}.empty-state h2{color:var(--ink)}.more-button{display:flex;margin:24px auto 0}.site-footer{padding:30px 0 110px;color:var(--muted);font-size:13px}.site-footer p{max-width:850px}.mobile-nav{display:none}dialog{border:0;padding:0;width:min(620px,calc(100% - 32px));max-height:min(760px,calc(100dvh - 32px));border-radius:24px;box-shadow:0 24px 90px rgba(21,13,31,.32);background:var(--surface);color:var(--ink)}dialog::backdrop{background:rgba(21,13,31,.64)}.dialog-shell{max-height:inherit;display:flex;flex-direction:column}.dialog-header{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;padding:24px 24px 8px}.dialog-header h2{font-size:52px;margin:0;line-height:1.2}.icon-button{min-width:48px;min-height:48px;border:1px solid var(--line);border-radius:12px;background:#f8f5fc;color:var(--ink);font-size:28px;line-height:1}.dialog-subtitle{padding:0 24px 12px;margin:0;color:var(--muted)}.dialog-list{overflow:auto;overscroll-behavior:contain;padding:4px 24px 24px;display:grid;gap:10px}.dialog-list .word-card{box-shadow:none}.dialog-list .word-jp{font-size:24px}body.modal-open{overflow:hidden}
@media(max-width:900px){.word-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{grid-template-columns:1.5fr .7fr}.intro-grid{grid-template-columns:1fr 1fr}.filter-row{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.shell{width:min(100% - 28px,560px)}.site-header .header-inner{min-height:64px}.header-note{display:none}.view{padding:18px 0 95px}.hero{grid-template-columns:1fr;min-height:0;padding:27px 23px;border-radius:21px}.hero h1{font-size:clamp(34px,9vw,46px)}.hero p{font-size:16px}.hero-symbol{position:absolute;right:-36px;top:-44px;width:150px;opacity:.12;transform:rotate(-12deg)}.hero-symbol span{font-size:56px}.hero-symbol small{display:none}.hero-actions{display:grid;grid-template-columns:1fr;margin-top:20px}.summary-grid{gap:8px;margin:12px 0 22px}.summary-card{padding:13px 9px;border-radius:13px}.summary-card strong{font-size:20px}.summary-card span{font-size:11px;line-height:1.2;display:block}.intro-grid{grid-template-columns:1fr;gap:9px}.info-card{padding:16px}.info-card h2{margin:7px 0 4px}.page-heading{display:block;margin:10px 0 17px}.page-heading h1{font-size:31px}.page-heading p{font-size:15px}.result-count{margin-top:8px}.toolbar{padding:13px;border-radius:15px}.filter-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.filter-row select{font-size:14px}.word-grid{grid-template-columns:1fr;gap:9px}.word-card{padding:16px}.word-jp{font-size:27px}.kanji-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.kanji-tile{min-height:78px}.kanji-tile strong{font-size:27px}.mobile-nav{position:fixed;z-index:20;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(3,1fr);background:var(--surface);border-top:1px solid var(--line);padding:6px max(12px,env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left));box-shadow:0 -5px 20px rgba(33,26,43,.06)}.mobile-nav button{min-height:54px;display:flex;align-items:center;justify-content:center;gap:3px;flex-direction:column;border:0;border-radius:11px;background:transparent;color:var(--muted);font-size:12px;font-weight:700}.mobile-nav button.active{background:var(--accent-soft);color:var(--accent-dark)}.mobile-nav svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.site-footer{padding-bottom:115px}dialog{position:fixed;inset:0;width:100%;max-width:none;height:100dvh;max-height:100dvh;margin:0;border-radius:0}.dialog-shell{height:100dvh;max-height:100dvh;padding-top:env(safe-area-inset-top)}.dialog-header{padding:18px 18px 6px}.dialog-subtitle{padding:0 18px 10px}.dialog-list{padding:4px 18px calc(22px + env(safe-area-inset-bottom));grid-template-columns:1fr}dialog::backdrop{background:rgba(21,13,31,.55)}}
@media(max-width:360px){.filter-row{grid-template-columns:1fr}.summary-card strong{font-size:18px}.kanji-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}
.desktop-nav{display:flex;gap:8px}.desktop-nav button{min-height:44px;padding:8px 14px;border:0;border-radius:10px;background:transparent;color:var(--muted);font-weight:700}.desktop-nav button:hover,.desktop-nav button.active{background:var(--accent-soft);color:var(--accent-dark)}
@media(max-width:620px){.desktop-nav{display:none}}

.install-card{display:flex;align-items:center;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin:0 0 10px}
.install-icon{width:64px;height:64px;flex:none;border-radius:14px}
.install-copy{flex:1;min-width:0}.install-copy h2{font-size:18px;margin:0 0 3px}.install-copy p{color:var(--muted);margin:0;font-size:14px}.install-copy .install-status{color:var(--accent-dark);font-weight:700;margin-top:5px}
.install-help{background:transparent;border:0;margin:0 0 24px;padding:0 4px;color:var(--muted);font-size:14px}.install-help summary{color:var(--accent-dark);cursor:pointer;font-weight:700;min-height:44px;display:flex;align-items:center}.install-help summary::marker{color:var(--accent)}.install-help div{max-width:680px;padding:4px 0 0 18px}.install-help p{margin:0 0 9px}
.copyright{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:8px}.copyright a{color:var(--accent-dark)}
@media(max-width:620px){.install-card{align-items:flex-start;flex-wrap:wrap;gap:13px;padding:15px}.install-icon{width:52px;height:52px}.install-copy{flex-basis:calc(100% - 70px)}.install-card .button{width:100%}}

.account-button{min-height:44px;padding:8px 15px;border:1px solid #c9b2e3;border-radius:11px;background:var(--surface);color:var(--accent-dark);font-weight:700;white-space:nowrap}
.account-button:hover{background:var(--accent-soft)}
.sync-card{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 24px;padding:18px 20px;border:1px solid #ded2eb;border-radius:var(--radius);background:#f6f2fc}
.sync-card strong{display:block;font-family:'Plus Jakarta Sans',sans-serif;font-size:16px}
.sync-card p{margin:3px 0 0;color:var(--muted);font-size:14px}
.sync-card .button{flex:none}
.account-dialog{width:min(440px,calc(100% - 28px))}
.account-dialog-shell{display:flex;flex-direction:column;max-height:inherit}
.account-dialog-header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:24px 24px 8px}
.account-dialog-header h2{font-size:27px;line-height:1.2;margin:5px 0 0}
.account-dialog-body{overflow:auto;padding:8px 24px 26px}
.account-dialog-body p{color:var(--muted);font-size:15px}
.account-dialog-body strong{overflow-wrap:anywhere}
.account-dialog-body form{margin:22px 0 0}
.account-dialog-body label{display:block;margin:0 0 6px;font-size:14px;font-weight:700}
.account-dialog-body input{display:block;width:100%;min-height:50px;padding:11px 13px;border:1px solid #c9b2e3;border-radius:11px;background:#fff;color:var(--ink);font-size:16px}
.account-dialog-body input:focus{outline:3px solid #aa86d7;outline-offset:2px}
.account-submit{width:100%;margin-top:14px}
.account-hint{margin:17px 0 0;font-size:13px!important}
.account-message{min-height:1.5em;margin:14px 0 0;color:var(--accent-dark)!important;font-weight:700}
.text-button{display:block;min-height:44px;margin:10px 0 0;padding:7px 0;border:0;background:transparent;color:var(--accent-dark);font-weight:700;text-decoration:underline;text-underline-offset:3px}
#account-signed-in .button{width:100%;margin-top:15px}
.button:disabled{opacity:.55;cursor:wait}
@media(max-width:620px){
  .site-header .header-inner{gap:10px}
  .brand{font-size:18px}
  .account-button{padding:8px 11px;font-size:13px}
  .sync-card{align-items:stretch;flex-direction:column;padding:16px;gap:12px}
  .sync-card .button{width:100%}
  .account-dialog{inset:auto 0 0;width:100%;height:auto;max-height:min(88dvh,760px);margin:0;border-radius:22px 22px 0 0}
  .account-dialog-shell{max-height:min(88dvh,760px)}
  .account-dialog-header{padding:22px 20px 8px}
  .account-dialog-body{padding:8px 20px calc(24px + env(safe-area-inset-bottom))}
}