:root{--wk-radical: #00aaff;--wk-kanji: #ff00aa;--wk-vocabulary: #aa00ff;--wk-apprentice: #dd0093;--wk-guru: #882d9e;--wk-master: #294ddb;--wk-enlightened: #0093dd;--wk-burned: #434343;--wk-lessons: #ff00aa;--wk-reviews: #00aaff;--wk-bg: #f4f4f4;--wk-surface: #ffffff;--wk-surface-alt: #ebebeb;--wk-border: #d5d5d5;--wk-text: #333333;--wk-text-muted: #7d7d7d;--wk-text-inverse: #ffffff;--wk-disabled: #c1c1c1;--wk-radius: 6px;--wk-shadow: 0 1px 3px rgb(0 0 0 / 12%);color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--wk-bg: #1a1a1a;--wk-surface: #242424;--wk-surface-alt: #2e2e2e;--wk-border: #3a3a3a;--wk-text: #e8e8e8;--wk-text-muted: #9a9a9a;--wk-disabled: #4a4a4a;--wk-shadow: 0 1px 3px rgb(0 0 0 / 40%)}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--wk-bg);color:var(--wk-text);font-family:Noto Sans,Helvetica Neue,Helvetica,Arial,sans-serif;font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}.ja{font-family:Noto Sans JP,Hiragino Kaku Gothic Pro,Yu Gothic,Meiryo,sans-serif;font-weight:400}a{color:inherit}button{font:inherit;cursor:pointer}button:disabled{cursor:not-allowed}.wk-container{max-width:1000px;margin:0 auto;padding:0 16px 48px}.wk-card{background:var(--wk-surface);border:1px solid var(--wk-border);border-radius:var(--wk-radius);box-shadow:var(--wk-shadow);padding:16px}.wk-section-title{font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--wk-text-muted);margin:32px 0 12px}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}