:root{--deep:#050b1f;--navy:#0b1a3d;--line:#2b4a8f;--accent:#6fd3ff;--text:#e6eeff;--muted:#8fa5d1;--card:rgba(14,30,70,.55)}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{background:radial-gradient(ellipse at 20% 0%,#10245a 0%,var(--deep) 60%) fixed;color:var(--text);font-family:"Segoe UI",system-ui,sans-serif;padding-top:env(safe-area-inset-top,0px)}
#sky{position:fixed;inset:0;width:100%;height:100%;z-index:0}
main{position:relative;z-index:1;max-width:860px;margin:0 auto;padding:48px 20px 80px}
h1{font-size:clamp(2rem,6vw,3.2rem);font-weight:300;letter-spacing:.04em;margin:0}
.sub{color:var(--muted);margin:.4rem 0 32px}
a{color:var(--accent)}
.panel,details.series{background:var(--card);border:1px solid rgba(111,211,255,.18);border-radius:14px;backdrop-filter:blur(6px);margin-bottom:14px}
.panel{padding:20px}
details.series summary{cursor:pointer;padding:16px 20px;font-size:1.1rem;list-style:none;display:flex;justify-content:space-between;align-items:center}
details.series summary::-webkit-details-marker{display:none}
details.series summary::after{content:"+";color:var(--accent);font-size:1.4rem;transition:transform .2s}
details.series[open] summary::after{transform:rotate(45deg)}
summary small{color:var(--muted);margin-left:10px}
summary:focus-visible,button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.row{display:flex;align-items:center;gap:14px;padding:12px 20px;border-top:1px solid rgba(111,211,255,.12)}
.row .ico{width:44px;height:44px;border-radius:10px;object-fit:cover;background:var(--navy);display:grid;place-items:center;color:var(--accent);border:1px solid var(--line);flex:none}
.row .info{flex:1;min-width:0}.row .info small{display:block;color:var(--muted)}
.btn,button.btn{background:transparent;border:1px solid var(--accent);color:var(--accent);padding:8px 16px;border-radius:8px;font:inherit;cursor:pointer;text-decoration:none;transition:background .2s}
.btn:hover{background:rgba(111,211,255,.15)}
input,textarea,select{width:100%;background:rgba(5,11,31,.7);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:10px;font:inherit;margin:6px 0 12px}
textarea{font-family:Consolas,monospace;font-size:.85rem;min-height:340px;resize:vertical}
label{color:var(--muted);font-size:.9rem}
.msg{min-height:1.4em;color:var(--accent)}.msg.err{color:#ff8a8a}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.cards a{display:block;padding:24px;text-decoration:none;color:var(--text);background:var(--card);border:1px solid rgba(111,211,255,.18);border-radius:14px;transition:border-color .2s}
.cards a:hover{border-color:var(--accent)}.cards b{display:block;font-size:1.15rem;margin-bottom:4px}.cards span{color:var(--muted)}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
.back{display:inline-block;margin-bottom:24px;color:var(--muted);text-decoration:none;transition:color .2s}
.back:hover{color:var(--accent)}