:root{--bg:#0b0b0d;--panel:#111113;--line:rgba(255,255,255,.14);--text:#f5f5f7;--muted:#77777d;--cyan:#00e5ff;--green:#4ee38b;--red:#ff5d78}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}body{min-height:100svh;display:grid;place-items:center;overflow-x:hidden}.security-shell{width:min(100%,1040px);padding:34px 22px}.identity{display:flex;align-items:center;gap:12px;margin:0 auto 28px;width:min(100%,860px)}.brand-mark{width:38px;height:38px;display:grid;place-items:center;border:1px solid rgba(0,229,255,.45);color:var(--cyan);font:800 15px/1 Arial;transform:rotate(45deg)}.brand-mark::first-letter{transform:rotate(-45deg)}.identity strong{display:block;font:800 13px/1 Arial;letter-spacing:.18em}.identity small{display:block;margin-top:5px;color:#4d4d54;font-size:7px;letter-spacing:.18em}.security-card{width:min(100%,860px);margin:auto;padding:52px 64px 34px;border:1px solid var(--line);background:linear-gradient(145deg,#121214,#0c0c0e);box-shadow:0 30px 90px rgba(0,0,0,.35)}.eyebrow{display:flex;align-items:center;gap:9px;color:#55555d;font-size:8px;letter-spacing:.2em}.eyebrow i{width:5px;height:5px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px rgba(0,229,255,.7)}.eyebrow b{margin-left:auto;color:#44444b;font-weight:400}.security-card h1{margin:24px 0 18px;font:500 clamp(34px,6vw,58px)/1.05 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.04em}.security-card h1 strong{font-weight:500;color:#fff}.security-card>p{max-width:730px;margin:0;color:#6e6e75;font-size:13px;line-height:1.8}.challenge{margin-top:42px;min-height:182px;border:1px solid rgba(255,255,255,.17);background:#303030;padding:30px 34px;display:flex;flex-direction:column;justify-content:center}.challenge-top{display:flex;align-items:center;justify-content:center;gap:14px;margin-bottom:18px}.challenge-top strong{font:500 30px/1 Arial,sans-serif;color:#f0f0f0}.status-dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 18px rgba(78,227,139,.55);animation:pulse 1.3s ease-in-out infinite}.turnstile-wrap{min-height:64px;display:flex;align-items:center;justify-content:center;width:100%}.dev-note{color:#777;font-size:9px;letter-spacing:.12em}.message{min-height:20px;margin-top:14px;color:#72727a;font-size:9px;line-height:1.5}.message.error{color:var(--red)}.security-line{display:flex;justify-content:center;align-items:center;gap:9px;margin-top:22px;color:#45454c;font-size:7px;letter-spacing:.16em}.security-line i{width:4px;height:4px;border-radius:50%;background:#34343a}.security-line span:first-child{color:#66666d}@keyframes pulse{50%{opacity:.35;transform:scale(.75)}}@media(max-width:640px){.security-shell{padding:20px 12px}.security-card{padding:34px 20px 25px}.security-card h1{font-size:32px;letter-spacing:.02em}.security-card>p{font-size:11px}.challenge{padding:24px 16px;min-height:180px}.challenge-top strong{font-size:23px}}@media(prefers-reduced-motion:reduce){.status-dot{animation:none}}