:root{color-scheme:dark;--font-jp: "Noto Sans JP", "Noto Sans CJK JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;--font-ui: system-ui, -apple-system, "Segoe UI", sans-serif;--text-study: 3rem;--text-lg: 1.5rem;--text-base: 1rem;--text-sm: .875rem;--text-ruby: .5em;--leading: 1.5;--leading-jp: 1.8;--bg: #0e0f11;--surface: #202328;--surface-soft: #292d33;--border: #33383f;--text: #ece9e4;--text-soft: #9d988f;--accent: #e3bc4b;--accent-deep: #e1bf45;--accent-wash: #332d18;--on-accent: #1a1710;--correct: #6f9e7c;--near: #c9a227;--wrong: #c47a63;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-6: 1.5rem;--space-8: 2rem;--lift: 0 1px 0 rgba(255, 255, 255, .045) inset, 0 10px 30px -8px rgba(0, 0, 0, .75);--lift-high: 0 1px 0 rgba(255, 255, 255, .06) inset, 0 20px 50px -12px rgba(0, 0, 0, .85);--glow-accent: 0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent), 0 18px 46px -14px color-mix(in srgb, var(--accent) 40%, transparent);--radius: .75rem;--radius-lg: 1.25rem;--tap-min: 44px;--content-max: 38rem;--gutter: var(--space-4);--nav-clear: calc(var(--tap-min) + 16px + var(--space-4) + env(safe-area-inset-bottom, 0px));--stack: var(--space-4)}@media (min-width: 48rem){:root{--gutter: var(--space-8);--stack: var(--space-6);--nav-clear: calc(var(--tap-min) + 16px + var(--space-4) * 2)}}*{box-sizing:border-box}body{margin:0;background:radial-gradient(120% 70% at 50% 0%,#1a1d22 0%,transparent 60%),var(--bg);background-attachment:fixed;color:var(--text);font-family:var(--font-ui);font-size:var(--text-base);line-height:var(--leading);-webkit-text-size-adjust:100%}.jp,[lang=ja]{font-family:var(--font-jp);line-height:var(--leading-jp);line-break:strict;overflow-wrap:anywhere;word-break:normal}ruby{ruby-position:over}rt{font-size:var(--text-ruby);opacity:.75;letter-spacing:.05em}button{font:inherit;font-weight:600;padding:.75rem 1.25rem;min-height:var(--tap-min);border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}button:not(:disabled):hover{filter:brightness(1.12)}:is(button,a,input,select):focus-visible{outline:2px solid var(--accent);outline-offset:4px}input,select{font:inherit;min-width:0}input::placeholder{color:var(--text-soft);opacity:1}::selection{background:var(--accent);color:var(--on-accent)}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}footer.svelte-j5ntyh{padding:var(--space-2) 0;text-align:center;font-size:.68rem}a.svelte-j5ntyh{color:var(--text-soft);opacity:.75;text-decoration:none}a.svelte-j5ntyh:hover{color:var(--accent);text-decoration:underline}nav.svelte-1h32yp1{position:sticky;bottom:0;z-index:10;display:flex;background:var(--surface);border:1px solid var(--border);box-shadow:var(--lift-high);width:min(100%,38rem);margin:0 auto;border-radius:18px 18px 0 0;padding:8px 8px calc(8px + env(safe-area-inset-bottom,0px))}nav.svelte-1h32yp1>:where(.svelte-1h32yp1){flex:1 1 0;min-width:0}a.svelte-1h32yp1{display:flex;flex-direction:column;align-items:center;gap:2px;padding:var(--space-2);min-height:var(--tap-min);font-size:.72rem;color:var(--text-soft);text-decoration:none;background:none;border:none;border-radius:0}a.active.svelte-1h32yp1{color:var(--accent);font-weight:600;background:var(--accent-wash);border-radius:10px}@media (min-width: 48rem){nav.svelte-1h32yp1{width:min(100%,30rem);margin-bottom:var(--space-4);border-radius:18px}}.shell.svelte-12qhfyh{min-height:100dvh;display:flex;flex-direction:column}.shell.svelte-12qhfyh>nav{margin-top:calc(-1 * (var(--tap-min) + 16px))}.content.svelte-12qhfyh{flex:1;display:flex;flex-direction:column;align-items:center;padding-bottom:var(--nav-clear)}.content.svelte-12qhfyh>*{width:100%}.content.svelte-12qhfyh>:first-child{flex:1}.kana-fab.svelte-12qhfyh{position:fixed;z-index:20;right:var(--space-3);bottom:var(--nav-clear);width:2.75rem;height:2.75rem;display:grid;place-items:center;padding:0;border-radius:50%;font-family:var(--font-jp);font-size:1.25rem;line-height:1;background:var(--surface);color:var(--accent-deep);border:1px solid var(--border);box-shadow:var(--lift)}.kana-fab.svelte-12qhfyh:hover{background:var(--accent-wash)}@media (min-width: 48rem){.kana-fab.svelte-12qhfyh{right:max(var(--space-4),calc(50vw - 26.75rem))}}