:root{--ink:#14211f;--sub:#5b6b68;--line:#e1e7e5;--bg:#f6f8f7;--card:#fff;--brand:#0e7c74;--brand2:#e08a3c;--ok:#1f9d55;--warn:#fff4e5;--warnline:#f0b46a;--lock:#8a6d1f}
@media (prefers-color-scheme:dark){:root{--ink:#e7efed;--sub:#9db0ac;--line:#24322f;--bg:#0f1715;--card:#16211e;--warn:#3a2d17;--warnline:#8a6a3a}}
*{box-sizing:border-box}html,body{margin:0}body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans","Noto Sans Bengali","Noto Sans Arabic","Noto Sans CJK KR","Noto Sans Devanagari",sans-serif;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.5;-webkit-text-size-adjust:100%}
a{color:var(--brand)}button,input,select,textarea{font:inherit;color:inherit}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;letter-spacing:.2px;color:var(--ink);text-decoration:none;font-size:20px}
.logo{width:26px;height:22px;position:relative;display:inline-block}.logo:before,.logo:after{content:"";position:absolute;border-radius:9px 9px 9px 2px}.logo:before{left:0;top:0;width:18px;height:14px;background:var(--brand)}.logo:after{right:0;bottom:0;width:16px;height:13px;background:var(--brand2);border-radius:9px 9px 2px 9px;opacity:.95}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:12px;padding:10px 16px;background:var(--brand);color:#fff;font-weight:700;cursor:pointer;text-decoration:none;min-height:42px}
.btn.alt{background:transparent;color:var(--brand);border:1.5px solid var(--brand)}.btn.ghost{background:transparent;color:var(--sub);border:1px solid var(--line)}.btn.sm{padding:6px 12px;min-height:34px;font-size:14px;border-radius:10px}.btn.warn{background:#b4442f}
input,select,textarea{width:100%;border:1px solid var(--line);background:var(--card);border-radius:10px;padding:10px 12px;min-height:42px}textarea{min-height:90px;resize:vertical}
label{display:block;font-size:14px;color:var(--sub);margin:12px 0 4px}
.doc .dochd{padding:14px 16px;border-bottom:1px solid var(--line);background:var(--card)}.docbody{max-width:760px;margin:0 auto;padding:16px}.docbody h1{font-size:26px}.docbody h2{font-size:18px;margin-top:22px}.docft{max-width:760px;margin:0 auto;padding:16px;color:var(--sub);font-size:13px;border-top:1px solid var(--line)}
[hidden]{display:none!important}