@import "https://fonts.googleapis.com/css2?family=Nunito:wght@500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700&family=Noto+Serif+JP:wght@500;600;700&family=JetBrains+Mono:wght@500;600&display=swap";
:root{--bg:#f7f3e8;--surface:#fbf6e4;--card:#fff;--card-ring:#e6ddc3;--ink:#26261f;--ink-soft:#565246;--ink-mute:#8c8775;--leaf:#6b9650;--leaf-deep:#4e7538;--leaf-soft:#e7efd6;--coral:#d97a4a;--coral-deep:#b35a2f;--coral-soft:#f9e4d3;--gold:#c89a3a;--gold-deep:#9c7620;--gold-soft:#f2e4be;--rose:#d9434a;--rose-deep:#a82e34;--rose-soft:#f7d9db;--teal:#3e9aa5;--teal-deep:#256e78;--teal-soft:#d7ecef;--stone:#a89f8a;--stone-deep:#6e6656;--stone-soft:#ede6d5;--sh-1:0 1.5px 0 #3f371e14;--sh-2:0 8px 24px -10px #3f371e2e;--color-success:var(--leaf);--r-m:14px;--r-l:18px;--r-xl:24px;--primary:var(--leaf);--primary-light:var(--leaf-soft);--secondary:var(--leaf);--accent:var(--coral);--success:var(--leaf);--text-dark:var(--ink);--text-light:var(--ink-soft);--text-muted:var(--ink-mute);--bg-light:var(--bg);--bg-white:var(--card);--border-color:var(--card-ring);--line:var(--card-ring);--line-strong:var(--stone);--radius-sm:8px;--radius-md:12px;--radius-xl:var(--r-l);--radius-2xl:var(--r-xl);--radius-pill:999px;--shadow-sm:var(--sh-1);--shadow-md:var(--sh-2);--shadow-lg:0 14px 28px -10px #3f371e33;--space-sm:8px;--space-md:12px;--space-lg:16px;--space-xl:20px;--space-2xl:24px;--space-3xl:32px;--ease-spring:cubic-bezier(.34, 1.56, .64, 1);--ease-smooth:cubic-bezier(.4, 0, .2, 1);--ease-out-expo:cubic-bezier(.19, 1, .22, 1);--ease-celebratory:cubic-bezier(.22, 1, .36, 1);--streak-flame:var(--gold);--streak-flame-dark:var(--coral-deep);--xp-gold:var(--gold);--error-warm:var(--coral);--error-warm-light:var(--coral-soft);--badge-bronze:#c1874a;--badge-silver:#b8b3a4;--badge-gold:var(--gold);--badge-diamond:var(--teal-soft);--freeze-blue:var(--teal);--combo-glow:#c89a3a4d;--correct-green:var(--leaf);--correct-green-light:var(--leaf-soft)}*{box-sizing:border-box;margin:0;padding:0}html{height:100%}html,body{overscroll-behavior:none;max-width:100vw}body{background:var(--bg);color:var(--ink);letter-spacing:.01em;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Noto Sans SC,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.6}h1,h2,h3,h4,h5,h6{letter-spacing:-.005em;margin:0;font-family:Nunito,Noto Sans SC,sans-serif}.jp{letter-spacing:.02em;font-family:Noto Serif JP,serif}.mono{font-family:JetBrains Mono,ui-monospace,SFMono-Regular,monospace}a{color:inherit;text-decoration:none}.placeholder-page{text-align:center;min-height:60vh;color:var(--ink-mute);flex-direction:column;justify-content:center;align-items:center;padding:2rem;display:flex}.placeholder-page h1{color:var(--ink);margin-bottom:.5rem;font-size:1.5rem}.placeholder-page p{font-size:.95rem}