*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{color-scheme:light;--paper: #F5F6FA;--sheet: #FFFFFF;--sheet-2: #EEF0F7;--grid: #E4E8F3;--page-grid: rgba(28, 33, 80, .07);--ghost-alpha: .075;--trace-alpha: .26;--mark-alpha: .22;--grain-opacity: .5;--desk: #232A6B;--desk-grid: rgba(255, 255, 255, .08);--rule: #DCE0EE;--rule-strong: #BCC3DC;--ink: #1C2150;--ink-2: #4B5180;--ink-3: #686E96;--ink-hover: #2B3275;--ink-shadow: #0B0E2C;--on: #2F45C6;--on-tint: rgba(47, 69, 198, .12);--kun: #0E7C63;--kun-tint: rgba(14, 124, 99, .12);--shu: #D93A2B;--shu-tint: rgba(217, 58, 43, .1);--shu-shadow: #8F2217;--marker: #FFE066;--marker-soft: rgba(255, 214, 64, .35);--highlight: var(--marker);--lift: 0 1px 0 var(--rule), 0 22px 40px -28px rgba(28, 33, 80, .45);--font-ui: "M PLUS 2", "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;--font-hand: "Klee One", "Hiragino Mincho ProN", "Yu Mincho", serif}[data-theme=dark]{color-scheme:dark;--paper: #12152E;--sheet: #1A1E3D;--sheet-2: #232851;--grid: rgba(236, 238, 255, .05);--page-grid: rgba(236, 238, 255, .05);--ghost-alpha: .07;--trace-alpha: .26;--mark-alpha: .3;--grain-opacity: .25;--desk: #28307A;--desk-grid: rgba(255, 255, 255, .07);--rule: #2C3260;--rule-strong: #444B84;--ink: #ECEEFF;--ink-2: #B7BBDD;--ink-3: #9197C2;--ink-hover: #FFFFFF;--ink-shadow: #7076A8;--on: #97A5FF;--on-tint: rgba(151, 165, 255, .16);--kun: #5CD6B4;--kun-tint: rgba(92, 214, 180, .14);--shu: #FF6B5B;--shu-tint: rgba(255, 107, 91, .14);--shu-shadow: #A8382C;--marker: #FFD84A;--marker-soft: rgba(255, 214, 64, .28);--highlight: rgba(255, 214, 64, .3);--lift: 0 22px 44px -26px rgba(0, 0, 0, .7)}html{-webkit-text-size-adjust:100%}body{background-color:var(--paper);color:var(--ink);font-family:var(--font-ui);font-size:1rem;line-height:1.65;-webkit-font-smoothing:antialiased;transition:background-color .25s ease,color .25s ease}#root{min-height:100vh;display:flex;flex-direction:column}img{max-width:100%;display:block}button,input,textarea{font:inherit;color:inherit}a{color:var(--on);text-underline-offset:3px}::selection{background:var(--marker);color:#1c2150}:focus-visible{outline:2.5px solid var(--on);outline-offset:2px}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.face{transition-delay:0s!important}}.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.display{font-family:var(--font-hand);font-weight:600;line-height:1.12;letter-spacing:-.01em;text-wrap:balance}.lede{font-size:1.15rem;color:var(--ink-2);max-width:34em}.muted{color:var(--ink-3)}.small{font-size:.9rem}[lang=ja]{font-family:var(--font-ui)}.sheet{background-color:var(--sheet);border:1.5px solid var(--rule);border-radius:16px;box-shadow:var(--lift)}.paper-bg{position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none;overflow:hidden}.paper-bg canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.paper-bg:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;opacity:var(--grain-opacity);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.11 0 0 0 0 0.13 0 0 0 0 0.31 0 0 0 0.22 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}[data-theme=dark] .paper-bg:after{filter:invert(1)}.kanji-row{display:inline-flex;flex-shrink:0}.kanji-box{position:relative;display:grid;place-items:center;width:var(--box);height:var(--box);background:var(--sheet);border:1.5px solid var(--rule-strong);font-family:var(--font-hand);font-weight:600;font-size:calc(var(--box) * .7);line-height:1;color:var(--ink)}.kanji-box+.kanji-box{margin-left:-1.5px}.kanji-box:before,.kanji-box:after{content:"";position:absolute;pointer-events:none}.kanji-box:before{left:50%;top:0;bottom:0;border-left:1px dashed var(--rule-strong)}.kanji-box:after{top:50%;left:0;right:0;border-top:1px dashed var(--rule-strong)}.kanji-box>span{position:relative;z-index:1}.hanamaru{display:block;overflow:visible}.hanamaru path{fill:none;stroke:var(--shu);stroke-width:4.2;stroke-linecap:round;stroke-linejoin:round}.hanamaru.draw path{stroke-dasharray:1;stroke-dashoffset:1;animation:draw-stroke .95s cubic-bezier(.45,.05,.3,1) forwards}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;font-weight:700;font-size:.95rem;line-height:1.2;padding:.78em 1.35em;border-radius:10px;border:1.5px solid transparent;background:none;text-decoration:none;cursor:pointer;white-space:nowrap;transition:transform .08s,box-shadow .08s,background-color .15s,border-color .15s,color .15s;-webkit-tap-highlight-color:transparent}.btn:active:not(:disabled){transform:translateY(2px);box-shadow:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-ink{background:var(--ink);color:var(--paper);box-shadow:0 3px 0 var(--ink-shadow)}.btn-ink:hover:not(:disabled){background:var(--ink-hover)}.btn-outline{background:var(--sheet);color:var(--ink);border-color:var(--rule-strong);box-shadow:0 3px 0 var(--rule)}.btn-outline:hover:not(:disabled){border-color:var(--ink-3)}.btn-red{background:var(--shu);color:#fff;box-shadow:0 3px 0 var(--shu-shadow)}.btn-plain{color:var(--ink-2);padding-inline:.7em}.btn-plain:hover:not(:disabled){color:var(--ink);text-decoration:underline}.btn-sm{font-size:.85rem;padding:.55em .95em;border-radius:8px}.btn-block{width:100%}.btn svg{width:1.15em;height:1.15em;flex-shrink:0}.icon-btn{display:inline-grid;place-items:center;flex-shrink:0;width:36px;height:36px;border-radius:9px;border:1.5px solid transparent;background:none;color:var(--ink-2);cursor:pointer;transition:background-color .15s,color .15s,border-color .15s;-webkit-tap-highlight-color:transparent}.icon-btn:hover{background:var(--sheet-2);color:var(--ink)}.icon-btn.danger:hover{background:var(--shu-tint);color:var(--shu)}.icon-btn svg{width:18px;height:18px}.field{display:block}.field-label{display:block;font-size:.82rem;font-weight:700;color:var(--ink-2);margin-bottom:.3rem}.field-label.on{color:var(--on)}.field-label.kun{color:var(--kun)}.input{width:100%;font-size:.95rem;line-height:1.5;background:var(--sheet);color:var(--ink);border:1.5px solid var(--rule-strong);border-radius:10px;padding:.6em .8em;transition:border-color .15s,box-shadow .15s}.input::placeholder{color:var(--ink-3);opacity:.8}.input:focus{outline:none;border-color:var(--on);box-shadow:0 0 0 3px var(--on-tint)}textarea.input{resize:vertical;min-height:4.2em}.notice{font-size:.9rem;padding:.7rem .95rem;border-radius:10px;background:color-mix(in srgb,var(--marker) 28%,var(--sheet));color:var(--ink);border:1.5px solid color-mix(in srgb,var(--marker) 70%,transparent)}.notice.error{background:color-mix(in srgb,var(--shu) 10%,var(--sheet));border-color:color-mix(in srgb,var(--shu) 40%,transparent)}.page{width:100%;max-width:1120px;margin:0 auto;padding-inline:1.5rem}.page-narrow{max-width:780px}.site-main{flex:1}.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1.5px solid transparent;transition:border-color .2s}.site-header.scrolled{border-bottom-color:var(--rule)}.site-header-inner{display:flex;align-items:center;gap:1rem;padding-block:.75rem}.brand{display:inline-flex;align-items:center;gap:.6rem;color:var(--ink);text-decoration:none;font-weight:800;font-size:1.15rem;letter-spacing:-.01em}.site-nav{display:flex;gap:.15rem;margin-left:1rem}.nav-link{color:var(--ink-2);text-decoration:none;font-weight:600;font-size:.93rem;padding:.45rem .7rem;border-radius:8px;transition:background-color .15s,color .15s}.nav-link:hover{color:var(--ink);background:var(--sheet-2)}.nav-link.active{color:var(--ink)}.nav-link.active span{background:linear-gradient(transparent 58%,var(--highlight) 58%)}.header-actions{margin-left:auto;display:flex;align-items:center;gap:.4rem}.header-signin{display:flex;align-items:center;gap:.5rem}.user-email{font-size:.85rem;color:var(--ink-3);max-width:16ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.menu-btn{display:none}.mobile-menu{border-top:1.5px solid var(--rule);padding:.5rem 1.5rem 1rem;display:flex;flex-direction:column;animation:drop-in .18s ease-out}.mobile-menu a,.mobile-menu button{text-align:left;padding:.75rem 0;border:none;background:none;font-size:1rem;font-weight:600;color:var(--ink);text-decoration:none;cursor:pointer;border-bottom:1px solid var(--rule)}.mobile-menu a[aria-current=page]{color:var(--on)}.mobile-menu .mobile-email{font-size:.85rem;color:var(--ink-3);padding:.75rem 0 .25rem}.site-footer{border-top:1.5px solid var(--rule);margin-top:5rem}.site-footer-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;padding-block:1.75rem;font-size:.9rem;color:var(--ink-3)}.site-footer nav{display:flex;gap:1.25rem}.site-footer a{color:var(--ink-2);text-decoration:none}.site-footer a:hover{color:var(--ink);text-decoration:underline}.hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(2.5rem,6vw,5rem);align-items:center;padding-block:clamp(2.5rem,7vw,5.5rem) clamp(3rem,6vw,5rem)}.hero h1{font-size:clamp(2.6rem,5.4vw,4.25rem);max-width:14ch}.hero .lede{margin-top:1.4rem}.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem 1.25rem;margin-top:2.1rem}.hero-note{margin-top:1.1rem;font-size:.92rem;color:var(--ink-3)}.demo{display:flex;flex-direction:column;align-items:center;gap:1.1rem}.demo-desk{width:100%;border-radius:22px;background-color:var(--desk);background-image:linear-gradient(var(--desk-grid) 1px,transparent 1px),linear-gradient(90deg,var(--desk-grid) 1px,transparent 1px);background-size:24px 24px;background-position:-1px -1px;box-shadow:inset 0 0 0 1.5px #ffffff0f;padding:clamp(2rem,5vw,3.25rem) clamp(1.25rem,4vw,2.75rem)}.flashcard{position:relative;max-width:420px;margin:0 auto;perspective:1400px;animation:deal-in .5s cubic-bezier(.2,.8,.2,1) both}.flashcard-inner{--flip-time: .5s;position:relative;transform-style:preserve-3d;transition:transform var(--flip-time) cubic-bezier(.45,0,.55,1)}.flashcard.flipped .flashcard-inner{transform:rotateY(180deg)}.face{backface-visibility:hidden;-webkit-backface-visibility:hidden;background:var(--sheet);border:1.5px solid var(--rule-strong);border-radius:14px;box-shadow:var(--lift);transition:visibility 0s linear calc(var(--flip-time) / 2)}.face.back{position:relative;transform:rotateY(180deg);padding:1.4rem 1.5rem 1.5rem;visibility:hidden}.face.front{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;transform:rotateY(0)}.flashcard.flipped .face.front{visibility:hidden}.flashcard.flipped .face.back{visibility:visible}.back-head{display:flex;align-items:center;gap:1rem}.back-meaning{font-family:var(--font-hand);font-weight:600;font-size:1.45rem;line-height:1.2}.readings{margin-top:1.1rem;display:grid;gap:.4rem}.readings div{display:flex;align-items:baseline;gap:.75rem}.readings dt{flex-shrink:0;width:2.8rem;text-align:center;font-size:.78rem;font-weight:800;border-radius:6px;padding:.1rem 0}.readings dt.on{color:var(--on);background:var(--on-tint)}.readings dt.kun{color:var(--kun);background:var(--kun-tint)}.readings dd{font-size:1.05rem;font-weight:500}.back-example{margin-top:1rem;padding-top:.9rem;border-top:1px dashed var(--rule-strong);font-size:1.02rem}.back-translation{font-size:.9rem;color:var(--ink-3)}.flashcard-hanamaru{position:absolute;z-index:3;pointer-events:none;width:118px;top:-40px;right:-26px;transform:rotate(-12deg)}.demo-controls{display:flex;gap:.75rem;justify-content:center;min-height:3rem}.demo-caption{font-size:.9rem;color:var(--ink-3);text-align:center}.section{padding-block:clamp(3rem,7vw,5.5rem);border-top:1.5px solid var(--rule)}.section-title{font-size:clamp(1.9rem,3.6vw,2.6rem)}.section-lede{color:var(--ink-2);font-size:1.1rem;margin-top:.4rem}.how{--how-gap: clamp(2.5rem, 5vw, 4.5rem);list-style:none;margin-top:2.75rem;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:3rem var(--how-gap)}.how-step{position:relative}.how-step:not(:last-child):after{content:"";position:absolute;top:88px;right:calc(var(--how-gap) / -2 - 22px);width:44px;height:30px;background:var(--ink-3);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 44 30' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 20c9-11 23-14 36-6'/%3E%3Cpath d='M32 9.5l7.5 4.8-6.2 5.9'/%3E%3C/svg%3E") center / contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 44 30' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 20c9-11 23-14 36-6'/%3E%3Cpath d='M32 9.5l7.5 4.8-6.2 5.9'/%3E%3C/svg%3E") center / contain no-repeat}.how-art{height:212px;display:grid;place-items:center}.how-step h3{display:flex;align-items:center;gap:.65rem;margin-top:1.6rem;font-size:1.15rem;font-weight:800;letter-spacing:-.01em}.how-step h3 .step-dot{border-color:var(--ink)}.how-step p{color:var(--ink-2);margin-top:.45rem;max-width:36ch}.art-photo{position:relative;width:206px;padding:8px;background:var(--sheet);border:1.5px solid var(--rule);border-radius:5px;box-shadow:var(--lift);transform:rotate(-3deg)}.art-sheet{background:var(--sheet-2);border-radius:2px;padding:9px 10px 10px}.art-sheet-title{font-family:var(--font-hand);font-weight:600;font-size:.72rem;color:var(--ink-2);margin-bottom:6px;line-height:1.2}.art-row{display:flex;align-items:center;gap:8px}.art-row+.art-row{margin-top:5px}.art-row .kanji-box+.kanji-box>span{opacity:.2}.art-lines{flex:1;display:grid;gap:5px}.art-lines i{height:3px;border-radius:2px;background:var(--rule-strong)}.art-lines i+i{width:60%}.viewfinder{position:absolute;width:18px;height:18px;border:0 solid var(--on)}.viewfinder.tl{top:-12px;left:-12px;border-top-width:3px;border-left-width:3px;border-top-left-radius:5px}.viewfinder.tr{top:-12px;right:-12px;border-top-width:3px;border-right-width:3px;border-top-right-radius:5px}.viewfinder.bl{bottom:-12px;left:-12px;border-bottom-width:3px;border-left-width:3px;border-bottom-left-radius:5px}.viewfinder.br{bottom:-12px;right:-12px;border-bottom-width:3px;border-right-width:3px;border-bottom-right-radius:5px}.art-card{width:232px;padding:1rem 1.1rem 1.05rem;background:var(--sheet);border:1.5px solid var(--rule-strong);border-radius:12px;box-shadow:var(--lift);transform:rotate(1.5deg)}.art-card-head{display:flex;align-items:center;gap:.8rem}.art-meaning{position:relative;font-size:1rem;line-height:1.2}.art-meaning s{color:var(--ink-3);text-decoration-color:var(--shu);text-decoration-thickness:2px}.art-fix{position:absolute;left:.2rem;top:-1.35rem;white-space:nowrap;font-family:var(--font-hand);font-weight:600;font-size:1.15rem;color:var(--shu);transform:rotate(-4deg)}.art-card .readings{margin-top:.9rem;gap:.3rem}.art-card .readings dd{font-size:.95rem}.art-anki{width:250px;padding:.55rem .4rem;background:var(--sheet);border:1.5px solid var(--rule-strong);border-radius:12px;box-shadow:var(--lift);font-size:.8rem}.art-anki-row{display:grid;grid-template-columns:1fr repeat(3,2.4rem);align-items:center;padding:.42rem .55rem;border-radius:7px;font-variant-numeric:tabular-nums}.art-anki-row>span:not(:first-child){text-align:right;font-weight:700}.art-anki-head{font-size:.68rem;font-weight:700;color:var(--ink-3);padding-block:.1rem .3rem}.art-anki-head>span:not(:first-child){font-weight:700}.art-anki-row.fresh{background:var(--marker-soft)}.art-anki-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.art-anki .new{color:var(--on)}.art-anki .learn{color:var(--shu)}.art-anki .due{color:var(--kun)}.art-anki .zero{color:var(--ink-3);opacity:.55;font-weight:500}.facts{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:2rem clamp(2rem,6vw,5rem);align-items:start}.facts .section-title{position:sticky;top:6rem}.facts dl{display:grid;gap:1.6rem}.facts dt{font-weight:800;font-size:1.05rem;letter-spacing:-.01em}.facts dd{color:var(--ink-2);margin-top:.2rem;max-width:52ch}.closing{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1.5rem;border-radius:22px;padding:clamp(1.75rem,5vw,3rem)}.closing h2{font-size:clamp(1.7rem,3.2vw,2.3rem)}.closing p{color:var(--ink-2);margin-top:.35rem}.tool-head{padding-top:clamp(2rem,5vw,3.5rem);margin-bottom:1.75rem}.tool-head h1{font-size:clamp(2.2rem,4.5vw,3rem)}.stepper{list-style:none;display:flex;flex-wrap:wrap;gap:.5rem 1.4rem;margin-top:1rem;font-size:.92rem;color:var(--ink-3)}.stepper li{display:flex;align-items:center;gap:.5rem}.step-dot{display:grid;place-items:center;width:1.65rem;height:1.65rem;border-radius:50%;border:1.5px solid var(--rule-strong);font-size:.8rem;font-weight:800;background:var(--sheet)}.stepper li.done{color:var(--ink-2)}.stepper li.done .step-dot{background:var(--ink);border-color:var(--ink);color:var(--paper)}.stepper li.current{color:var(--ink);font-weight:700}.stepper li.current .step-dot{border-color:var(--ink)}.stepper li.current .step-label{background:linear-gradient(transparent 58%,var(--highlight) 58%)}.stepper li.failed .step-dot{border-color:var(--shu);color:var(--shu)}.dropzone{background:var(--sheet);border:2px dashed var(--rule-strong);border-radius:18px;padding:clamp(2.25rem,6vw,3.75rem) 1.5rem;text-align:center;cursor:pointer;transition:border-color .15s,background-color .15s;-webkit-tap-highlight-color:transparent}.dropzone:hover{border-color:var(--ink-3)}.dropzone.dragging{border-color:var(--on);background-color:var(--on-tint)}.dropzone.full{cursor:default;border-color:var(--rule-strong)}.dropzone .kanji-row{margin-bottom:1.25rem}.dropzone-title{font-family:var(--font-hand);font-weight:600;font-size:clamp(1.35rem,3vw,1.6rem);line-height:1.25}.dropzone-hint{color:var(--ink-3);font-size:.92rem;margin-top:.35rem}.dropzone-actions{display:flex;flex-wrap:wrap;gap:.65rem;justify-content:center;margin-top:1.6rem}.camera-btn{display:none}.thumbs{list-style:none;margin-top:1.75rem;display:grid;grid-template-columns:repeat(auto-fill,minmax(118px,1fr));gap:1.4rem 1.1rem}.thumb{position:relative;background:var(--sheet);border:1.5px solid var(--rule);border-radius:6px;padding:6px 6px 30px;box-shadow:var(--lift);transform:rotate(-1.2deg)}.thumb:nth-child(2n){transform:rotate(1deg)}.thumb img,.thumb-fallback{width:100%;aspect-ratio:3 / 4;object-fit:cover;border-radius:3px;background:var(--sheet-2)}.thumb-fallback{display:grid;place-items:center;padding:.5rem;font-size:.75rem;color:var(--ink-3);text-align:center;word-break:break-all}.thumb-caption{position:absolute;left:9px;bottom:6px;font-size:.78rem;font-weight:700;color:var(--ink-2)}.thumb .icon-btn{position:absolute;top:-12px;right:-12px;width:30px;height:30px;border-radius:50%;background:var(--sheet);border-color:var(--rule-strong);box-shadow:0 2px 0 var(--rule)}.thumb .icon-btn svg{width:14px;height:14px}.upload-submit{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem 1.25rem;margin-top:1.75rem}.processing{padding:clamp(1.75rem,5vw,2.75rem);overflow:hidden}.writing-row{display:flex;justify-content:center;margin-bottom:1.75rem}.writing-row .kanji-box>span{animation:ink-write 5.4s ease-in-out infinite both}.writing-row .kanji-box:nth-child(2)>span{animation-delay:.6s}.writing-row .kanji-box:nth-child(3)>span{animation-delay:1.2s}.writing-row .kanji-box:nth-child(4)>span{animation-delay:1.8s}.writing-row .kanji-box:nth-child(5)>span{animation-delay:2.4s}.processing h2{font-size:clamp(1.5rem,3.4vw,1.9rem);text-align:center}.processing>p{text-align:center;color:var(--ink-2);margin-top:.35rem}.progress-list{list-style:none;margin:2rem auto 0;max-width:420px;display:grid;gap:.2rem}.progress-list li{display:flex;gap:.8rem;align-items:flex-start;padding:.55rem .75rem;border-radius:10px;color:var(--ink-3)}.progress-list li.current{background:var(--sheet-2);color:var(--ink)}.progress-list li.done{color:var(--ink-2)}.progress-mark{flex-shrink:0;margin-top:.2rem;width:1.1rem;height:1.1rem;border-radius:50%;border:1.5px solid var(--rule-strong);display:grid;place-items:center}.progress-list li.done .progress-mark{background:var(--kun);border-color:var(--kun);color:var(--sheet)}.progress-list li.done .progress-mark svg{width:.7rem;height:.7rem}.progress-list li.current .progress-mark{border-color:var(--on);border-right-color:transparent;animation:spin .9s linear infinite}.progress-label{font-weight:700}.progress-detail{display:block;font-size:.88rem;color:var(--ink-3)}.elapsed{text-align:center;font-size:.88rem;color:var(--ink-3);margin-top:1.25rem;font-variant-numeric:tabular-nums}.review-head p{color:var(--ink-2);margin-top:.35rem}.review-head h2{font-size:clamp(1.6rem,3.6vw,2rem)}.deck-name{margin-top:1.5rem;max-width:420px}.card-list{list-style:none;margin-top:1.5rem;display:grid;gap:1rem}.card-editor{display:flex;gap:1.25rem;align-items:flex-start;padding:1.1rem}.card-fields{flex:1;min-width:0;display:grid;gap:.75rem}.reading-fields{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}.card-empty{margin-top:1.5rem;padding:2rem 1.5rem;text-align:center;border:2px dashed var(--rule-strong);border-radius:16px;color:var(--ink-2)}.review-bar{position:sticky;bottom:0;z-index:5;margin-top:1.25rem;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.75rem;padding-block:.9rem;background:color-mix(in srgb,var(--paper) 90%,transparent);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-top:1.5px solid var(--rule)}.review-error{margin-top:1rem}.result{padding:clamp(2rem,6vw,3.25rem);text-align:center}.result .hanamaru,.result .red-cross{display:block;width:132px;margin:0 auto .75rem}.result h2{font-size:clamp(1.8rem,4vw,2.3rem)}.result>p{color:var(--ink-2);margin:.5rem auto 0;max-width:44ch}.result-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:.75rem;margin-top:1.75rem}.result .result-hint{font-size:.9rem;color:var(--ink-3);margin-top:1.5rem}.red-cross path{fill:none;stroke:var(--shu);stroke-width:7;stroke-linecap:round;stroke-dasharray:1;stroke-dashoffset:1;animation:draw-stroke .35s ease-out forwards}.red-cross path+path{animation-delay:.3s}.page-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:1rem 2rem;padding-top:clamp(2rem,5vw,3.5rem);margin-bottom:2.25rem}.page-head h1{font-size:clamp(2.2rem,4.5vw,3rem)}.page-head p{color:var(--ink-2);margin-top:.3rem}.decks{list-style:none;isolation:isolate;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:2rem 1.25rem;padding-top:12px}.deck{position:relative;display:flex;flex-direction:column;background:var(--sheet);border:1.5px solid var(--rule-strong);border-radius:12px;padding:1.1rem 1.15rem 1rem;min-height:168px}.deck:before,.deck:after{content:"";position:absolute;z-index:-1;height:100%;background:var(--sheet);border:1.5px solid var(--rule-strong);border-radius:12px}.deck:before{top:-6px;left:7px;right:7px}.deck:after{top:-12px;left:15px;right:15px;opacity:.7}.deck-name-text{font-weight:800;font-size:1.05rem;line-height:1.3;letter-spacing:-.01em;overflow-wrap:anywhere}.deck-meta{font-size:.88rem;color:var(--ink-3);margin-top:.25rem}.deck-actions{margin-top:auto;padding-top:1rem;display:flex;align-items:center;gap:.5rem}.deck-confirm{margin-top:auto;padding-top:.9rem}.deck-confirm p{font-size:.9rem;font-weight:700;margin-bottom:.6rem}.deck-confirm div{display:flex;gap:.5rem}.empty-sheet{padding:clamp(2rem,6vw,3rem);text-align:center}.empty-sheet p{color:var(--ink-2);max-width:46ch;margin:.5rem auto 1.5rem}.empty-sheet h2{font-size:1.6rem}.auth{padding-top:clamp(2rem,6vw,4rem)}.auth-sheet{max-width:440px;margin:0 auto;padding:clamp(1.5rem,5vw,2.25rem)}.auth-sheet h1{font-size:2rem;margin-top:1rem}.auth-sheet>p{color:var(--ink-2);margin-top:.3rem}.segmented{display:grid;grid-template-columns:1fr 1fr;gap:4px;margin-top:1.5rem;padding:4px;border-radius:11px;background:var(--sheet-2)}.segmented button{border:none;background:none;border-radius:8px;padding:.5rem;font-weight:700;font-size:.92rem;color:var(--ink-3);cursor:pointer}.segmented button[aria-pressed=true]{background:var(--sheet);color:var(--ink);box-shadow:0 1px 0 var(--rule-strong)}.auth-form{display:grid;gap:1rem;margin-top:1.5rem}.or-divider{display:flex;align-items:center;gap:.75rem;margin:1.4rem 0;font-size:.85rem;color:var(--ink-3)}.or-divider:before,.or-divider:after{content:"";flex:1;border-top:1.5px solid var(--rule)}.google-slot{display:flex;justify-content:center;min-height:44px}.auth-skip{text-align:center;margin-top:1.5rem;font-size:.92rem}.not-found{text-align:center;padding-top:clamp(3rem,9vw,6rem)}.not-found h1{font-size:clamp(2rem,4.5vw,2.75rem);margin-top:1.5rem}.not-found p{color:var(--ink-2);margin:.5rem auto 2rem;max-width:40ch}.not-found .result-actions{margin-top:0}@media (max-width: 860px){.hero{grid-template-columns:1fr}.hero h1{max-width:14ch}.how{grid-template-columns:minmax(0,1fr);max-width:460px;gap:3.5rem}.how-step:not(:last-child):after{top:auto;right:auto;bottom:-3.1rem;left:50%;transform:translate(-50%) rotate(90deg)}.how-art{height:200px}.facts{grid-template-columns:1fr}}@media (max-width: 720px){.site-nav,.header-signin{display:none}.menu-btn{display:inline-grid}.camera-btn{display:inline-flex}}@media (max-width: 560px){.page{padding-inline:1rem}.card-editor{flex-direction:column;position:relative;gap:.9rem}.card-editor>.icon-btn{position:absolute;top:.7rem;right:.7rem}.reading-fields{grid-template-columns:1fr}.flashcard-hanamaru{width:96px;top:-34px;right:-10px}.review-bar .btn-ink{flex:1}}@keyframes draw-stroke{to{stroke-dashoffset:0}}@keyframes deal-in{0%{opacity:0;transform:translate(32px) rotate(4deg)}to{opacity:1;transform:none}}@keyframes drop-in{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes ink-write{0%{clip-path:inset(0 0 100% 0);opacity:1}22%{clip-path:inset(0 0 0 0);opacity:1}72%{clip-path:inset(0 0 0 0);opacity:1}88%,to{clip-path:inset(0 0 0 0);opacity:0}}