:root{color-scheme:dark;--bg:#09090b;--card:#151519;--border:rgba(255,255,255,.08);--text:#f4f4f5;--muted:#8b8b94;--danger:#f87171}*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:'Plus Jakarta Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:radial-gradient(circle at 50% 0%,rgba(99,102,241,.09),transparent 55%),var(--bg);color:var(--text)}.auth-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card{width:min(420px,100%);padding:34px;border:1px solid var(--border);border-radius:20px;background:rgba(21,21,25,.92);box-shadow:0 24px 70px rgba(0,0,0,.45)}.brand{display:flex;gap:11px;align-items:center;margin-bottom:30px}.brand-badge{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,#4f46e5,#06b6d4);box-shadow:0 0 20px rgba(99,102,241,.25)}.brand-title{font-weight:700;font-size:18px}.brand-sub{color:var(--muted);font-size:11px;margin-top:2px}.auth-card h1{margin:0 0 8px;font-size:28px;letter-spacing:-.03em}.lede{margin:0 0 26px;color:var(--muted);font-size:14px}form{display:grid;gap:15px}label{display:grid;gap:8px;font-size:13px;color:#c9c9d0}input{width:100%;padding:12px 13px;border-radius:10px;border:1px solid var(--border);background:#101014;color:var(--text);font:inherit}input:focus{outline:none;border-color:rgba(99,102,241,.55);box-shadow:0 0 0 2px rgba(99,102,241,.12)}small{color:var(--muted);font-size:11px;margin-top:-4px}form button{margin-top:4px;padding:12px 14px;border:0;border-radius:10px;background:#fff;color:#0b0b0d;font-weight:700;cursor:pointer}.error{min-height:18px;margin:0;color:var(--danger);font-size:12px}.switch{margin:18px 0 0;text-align:center;color:var(--muted);font-size:12px}.switch a{color:#c7d2fe;text-decoration:none}