@import "https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&display=swap";
.learn-root{--bg-page:#fafaf7;--bg-surface:#fff;--bg-muted:#f3f1ec;--ink-primary:#1a1916;--ink-secondary:#5c5a55;--ink-tertiary:#8b8a84;--border-soft:#1a191614;--border-strong:#1a191629;--accent-bamboo:#4a6b3a;--accent-tori:#b8472f;--accent-sky:#4a6b87;--accent-warn:#b8801f;--font-display:var(--font-noto-serif-jp), "Noto Serif JP", serif;--font-jp-serif:var(--font-noto-serif-jp), "Noto Serif JP", serif;--font-jp-sans:var(--font-noto-jp), "Noto Sans JP", sans-serif;--font-ui:var(--font-inter), "Inter", system-ui, sans-serif;--font-mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--elev-1:var(--bg-page);--elev-2:var(--bg-surface);--elev-3:#fff;--sheet-shadow:0 -12px 32px -16px #1a19162e;--pos-noun:var(--ink-secondary);--pos-verb:var(--accent-bamboo);--pos-particle:var(--accent-sky);--pos-i-adj:var(--accent-warn);--pos-na-adj:var(--accent-tori);--pos-interj:#a18f6b;--pos-noun-bg:#1a19160a;--pos-verb-bg:#4a6b3a14;--pos-particle-bg:#4a6b8714;--pos-i-adj-bg:#b8801f14;--pos-na-adj-bg:#b8472f12;--pos-interj-bg:#a18f6b1a;--ease-out:cubic-bezier(.16, 1, .3, 1);--t-fast:.18s;--t-med:.26s;--t-slow:.44s;background:var(--bg-page);color:var(--ink-primary);font-family:var(--font-ui);-webkit-font-smoothing:antialiased}.dark .learn-root{--bg-page:#14130f;--bg-surface:#1c1b17;--bg-muted:#25231d;--ink-primary:#f0eee6;--ink-secondary:#b8b6ad;--ink-tertiary:#807e76;--border-soft:#f0eee614;--border-strong:#f0eee629;--accent-bamboo:#7a9968;--accent-tori:#d97961;--accent-sky:#88a8c4;--accent-warn:#d4a558;--elev-1:var(--bg-page);--elev-2:var(--bg-surface);--elev-3:#232119;--sheet-shadow:0 -16px 40px -16px #0009;--pos-noun-bg:#f0eee60f;--pos-verb-bg:#7a996824;--pos-particle-bg:#88a8c424;--pos-i-adj-bg:#d4a55824;--pos-na-adj-bg:#d9796124;--pos-interj-bg:#b4a27c24}.learn-root .jp{font-family:var(--font-jp-serif);font-weight:500}.learn-root .jp-sans{font-family:var(--font-jp-sans);font-weight:500}.learn-root .display{font-family:var(--font-display);font-weight:500}.learn-root .romaji{font-family:var(--font-mono);color:var(--accent-sky);letter-spacing:.01em;font-weight:500}.learn-root .eyebrow{font-family:var(--font-ui);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-tertiary);font-size:11px;font-weight:500}.learn-root .num{font-variant-numeric:tabular-nums}.learn-root .hairline{border:.5px solid var(--border-soft)}.learn-root .mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}@keyframes learnFadeUp{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@keyframes v3-fade-up{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes v3-lantern{0%,to{transform:rotate(-1.2deg)}50%{transform:rotate(1.2deg)}}@keyframes v3-steam{0%{opacity:0;transform:translateY(0)scaleX(1)}30%{opacity:.6}to{opacity:0;transform:translateY(-22px)scaleX(.7)}}@keyframes v3-petal{0%{opacity:0;transform:translateY(-8px)rotate(0)}10%{opacity:.7}to{opacity:0;transform:translate(var(--drift,60px), 100vh) rotate(540deg)}}@keyframes v3-pulse{0%,to{opacity:.45}50%{opacity:1}}.learn-root .fade-up{animation:learnFadeUp .22s var(--ease-out) both}.learn-root .v3-fade-up{animation:v3-fade-up var(--t-med) var(--ease-out) both}.learn-root .v3-lantern{transform-origin:50% 0;animation:4.5s ease-in-out infinite v3-lantern}.learn-root .v3-steam path{animation:2.6s ease-out infinite v3-steam}.learn-root .v3-steam path:nth-child(2){animation-delay:.6s}.learn-root .v3-steam path:nth-child(3){animation-delay:1.2s}.learn-root .v3-pulse-dot{animation:2s ease-in-out infinite v3-pulse}@media (prefers-reduced-motion:reduce){.learn-root *,.learn-root :before,.learn-root :after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.learn-mobile-only{display:block}.learn-desktop-only{display:none}@media (min-width:1024px){.learn-mobile-only{display:none}.learn-desktop-only{display:block}}