:root{--bg:#05070b;--card:#0b0f16;--fg:#eef1f6;--mu:#a3adc8;--red:#ff2a3d;--bd:#1a2342}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:radial-gradient(900px 340px at 50% -60px,rgba(255,42,61,.18),transparent 70%),var(--bg);color:var(--fg);
font:16px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif}
.gs{max-width:920px;margin:0 auto;padding:16px 16px 56px}a{color:#ff6b78}
.gs-back{display:inline-block;margin:4px 0 18px;color:var(--mu);text-decoration:none;font-size:14px}
.gs-hero{text-align:center;margin:0 0 22px}
.gs-mark{filter:drop-shadow(0 0 10px var(--red));animation:gs-spin 12s linear infinite}
@keyframes gs-spin{to{transform:rotate(360deg)}}
.gs-k{font:700 11px/1.3 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.2em;text-transform:uppercase;color:var(--red);margin:10px 0 8px}
h1{margin:0 0 10px;font-size:clamp(30px,6vw,46px);line-height:1.1;letter-spacing:-.02em;
text-shadow:0 0 8px rgba(255,255,255,.35),0 0 22px rgba(255,42,61,.9),0 0 48px rgba(255,42,61,.6);animation:gs-pulse 2.4s ease-in-out infinite}
@keyframes gs-pulse{50%{text-shadow:0 0 10px rgba(255,255,255,.6),0 0 30px rgba(255,42,61,1),0 0 70px rgba(255,42,61,.8)}}
.gs-lede{color:#d5dcec;max-width:640px;margin:0 auto}
.gs-grid{display:grid;gap:12px;grid-template-columns:repeat(3,minmax(0,1fr));margin:0 0 26px}
@media(max-width:820px){.gs-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:520px){.gs-grid{grid-template-columns:1fr}}
.gs-card{display:block;padding:14px 16px;border:1px solid rgba(255,42,61,.55);border-radius:14px;background:rgba(255,42,61,.07);
color:#fff;text-decoration:none;box-shadow:0 0 18px -8px var(--red);min-height:44px}
.gs-card:hover,.gs-card:focus-visible{background:rgba(255,42,61,.16);outline:none}
.gs-card b{display:block;font-size:15.5px;margin:0 0 3px}.gs-card span{color:#c7cddb;font-size:13.5px}
.gs-h{font:700 12px/1.3 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.2em;text-transform:uppercase;color:#ff6b78;margin:26px 0 10px}
.gs-pre{margin:0;padding:12px 14px;background:#03050a;border:1px solid var(--bd);border-radius:10px;color:#7dd3fc;
font:600 12.5px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre-wrap;overflow-wrap:anywhere}
.gs-search{width:100%;padding:12px 14px;border-radius:10px;border:1px solid #2a3550;background:#03050a;color:var(--fg);font-size:16px}
.gs-jump{font-size:13.5px;color:var(--mu);margin:10px 0 4px;line-height:1.9}.gs-jump a{color:#c7cddb}
.gs-cat{margin:22px 0 8px;font:700 11px/1.3 ui-monospace,monospace;letter-spacing:.18em;text-transform:uppercase;color:#7c86a6;scroll-margin-top:12px}
.gs-q{border:1px solid var(--bd);border-radius:12px;margin:0 0 8px;background:var(--card)}
.gs-q summary{cursor:pointer;padding:13px 14px;font-weight:600;list-style-position:inside;min-height:44px}
.gs-q[open] summary{color:#fff;border-bottom:1px solid var(--bd)}
.gs-q p{margin:0;padding:12px 14px 14px;color:#c7cddb;font-size:15px;overflow-wrap:anywhere}
.gs-foot{margin:30px 0 0;text-align:center;color:var(--mu)}
@media(prefers-reduced-motion:reduce){.gs-mark,h1{animation:none}}
/* Guided steps (2026-11-11) */
.gs-steps{list-style:none;margin:0;padding:0;counter-reset:none}
.gs-step{background:var(--card);border:1px solid rgba(255,42,61,.45);border-radius:16px;padding:18px;margin:0 0 16px;box-shadow:0 0 22px -12px var(--red)}
.gs-step h2{margin:0 0 6px;font-size:clamp(20px,3.4vw,24px)}.gs-step p{margin:0 0 12px;color:#c7cddb}
.gs-n{font:700 11px/1.3 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.18em;text-transform:uppercase;color:#ff6b78!important;margin:0 0 6px!important}
.gs-ex{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 10px}
.gs-ex button{background:transparent;border:1px solid #2a3550;color:#e6edf6;border-radius:999px;padding:8px 13px;font-size:14px;cursor:pointer;min-height:40px}
.gs-ex button:hover{border-color:var(--red)}
.gs-code{width:100%;min-height:170px;resize:vertical;padding:12px;border-radius:10px;border:1px solid #2a3550;background:#03050a;color:var(--fg);
font:13.5px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace}
.gs-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:10px 0 0}
.gs-btn{display:inline-block;background:var(--red);color:#fff;border:0;border-radius:10px;padding:12px 18px;font-weight:700;font-size:15.5px;
cursor:pointer;text-decoration:none;min-height:44px;margin:0 6px 6px 0}
.gs-btn.sec{background:transparent;border:1px solid #2a3550;color:#e6edf6}.gs-btn:disabled{opacity:.6;cursor:wait}
.gs-lang{background:#03050a;color:var(--fg);border:1px solid #2a3550;border-radius:10px;padding:11px;min-height:44px;font-size:15px}
.gs-out{margin:12px 0 0;font-size:15px}.gs-out ul{margin:8px 0 0;padding-left:18px}.gs-out li{margin:8px 0}
.gs-out code{color:#7dd3fc;font:13px ui-monospace,monospace;overflow-wrap:anywhere}
.gs-grade{font:800 16px ui-monospace,monospace;letter-spacing:.06em}.gs-grade.STUB{color:#ff6b78}.gs-grade.PARTIAL{color:#f5a524}.gs-grade.REAL{color:#22c55e}
.gs-sev{font:700 11px ui-monospace,monospace;letter-spacing:.08em;margin-right:6px;color:#ff6b78}
.gs-cmds{display:grid;gap:10px}
.gs-cmd{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;text-align:left;width:100%;background:#03050a;border:1px solid #2a3550;border-radius:10px;
padding:12px 14px;color:var(--fg);cursor:pointer;min-height:48px}
.gs-cmd:hover{border-color:var(--red)}.gs-cmd b{min-width:150px}.gs-cmd code{flex:1;min-width:0;color:#7dd3fc;font:12.5px ui-monospace,monospace;overflow-wrap:anywhere}
.gs-cmd span{font:700 12px ui-monospace,monospace;color:#ff6b78;letter-spacing:.08em}.gs-cmd.done span{color:#22c55e}
.gs-yml{margin:0 0 10px}.gs-small{font-size:14px;color:var(--mu)!important;margin:10px 0 0!important}
@media(max-width:520px){.gs-cmd{display:block}.gs-cmd b,.gs-cmd code,.gs-cmd span{display:block;min-width:0}.gs-cmd code{margin:4px 0}}