:root{--bg:#0b1220;--card:#101f3a;--muted:#8ea0c6;--text:#e8eeff;--line:rgba(255,255,255,.08);--danger:#ff6b6b;--shadow:0 10px 30px rgba(0,0,0,.35);--radius2:22px;--font:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:radial-gradient(1200px 800px at 10% 10%, rgba(122,162,255,.25), transparent 55%),radial-gradient(900px 600px at 90% 30%, rgba(102,217,208,.18), transparent 55%),var(--bg);color:var(--text);font-family:var(--font)}a{color:inherit;text-decoration:none}.small{font-size:12px}.muted{color:var(--muted)}.strong{font-weight:650}.req{color:var(--danger)}.layout{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.sidebar{padding:22px 18px;border-right:1px solid var(--line);background:rgba(15,26,46,.55);backdrop-filter:blur(10px)}.brand{font-weight:800;font-size:18px}.brand-sub{margin-top:6px;font-size:12px;color:var(--muted)}.nav{display:flex;flex-direction:column;gap:6px;margin-top:16px}.nav a{padding:10px 12px;border-radius:12px;color:var(--muted);border:1px solid transparent}.nav a:hover{border-color:var(--line);color:var(--text)}.nav a.active{background:rgba(122,162,255,.15);border-color:rgba(122,162,255,.25);color:var(--text)}.content{padding:26px 26px 40px}.topbar{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.page-title{margin:0;font-size:30px}.page-subtitle{margin-top:8px;color:var(--muted);max-width:880px;line-height:1.5}.actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}button,.button{appearance:none;border:1px solid rgba(255,255,255,.12);background:rgba(122,162,255,.16);color:var(--text);padding:10px 12px;border-radius:14px;cursor:pointer;font-weight:650;box-shadow:0 8px 20px rgba(0,0,0,.22)}button.secondary,.button.secondary{background:rgba(255,255,255,.06)}button.danger{background:rgba(255,107,107,.18);border-color:rgba(255,107,107,.25)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:18px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}.stack{display:flex;flex-direction:column;gap:14px}.card{background:rgba(16,31,58,.72);border:1px solid var(--line);border-radius:var(--radius2);padding:16px;box-shadow:var(--shadow)}.kicker{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}.row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}.row:last-child{border-bottom:none}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}input,select,textarea{width:100%;padding:10px 11px;border-radius:14px;background:rgba(0,0,0,.18);border:1px solid rgba(255,255,255,.10);color:var(--text);outline:none}textarea{resize:vertical;min-height:92px}.preview{padding:14px;border-radius:16px;border:1px solid rgba(255,255,255,.10);background:rgba(0,0,0,.18);white-space:pre-wrap;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:12.5px;line-height:1.45;min-height:420px}.opts{display:flex;flex-direction:column;gap:8px}.opt{display:flex;gap:10px;align-items:flex-start;font-size:13px}.opt input{width:auto;margin-top:3px}.hr{height:1px;background:var(--line);margin:10px 0}.notice{padding:12px;border-radius:16px;border:1px solid rgba(255,255,255,.10);background:rgba(255,255,255,.06)}.notice.ok{border-color:rgba(70,209,139,.25);background:rgba(70,209,139,.10)}@media(max-width:980px){.layout{grid-template-columns:1fr}.grid-2,.grid-4{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}}