:root{color-scheme:light dark;--bg:#f6f7f9;--card:#fff;--text:#17202a;--muted:#59636e;--border:#d9dee5;--link:#0b57d0;--accent:#0f6d66}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.65}header,main,footer{max-width:980px;margin:auto}header{padding:28px 20px 10px}main{padding:0 20px 40px}.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px;margin:16px 0}h1{margin:0 0 8px;font-size:2rem}h2{margin-top:1.8rem}a{color:var(--link)}nav a{margin-inline-end:14px}.muted{color:var(--muted)}.notice{border-inline-start:4px solid var(--accent);padding:12px 16px;background:color-mix(in srgb,var(--card) 85%,var(--accent) 15%);border-radius:8px}.lang{display:grid;grid-template-columns:1fr 1fr;gap:18px}.rtl{direction:rtl;text-align:right}.ltr{direction:ltr;text-align:left}.button{display:inline-block;padding:11px 16px;border-radius:10px;background:var(--accent);color:white;text-decoration:none;font-weight:650}.danger{background:#a52525}.small{font-size:.92rem}@media(max-width:760px){.lang{grid-template-columns:1fr}h1{font-size:1.6rem}}@media(prefers-color-scheme:dark){:root{--bg:#101316;--card:#171b20;--text:#edf2f7;--muted:#a8b0ba;--border:#343a42;--link:#8ab4f8;--accent:#2b8d84}}