.ld-auth{--bg:#f7f8fa;--surface:#ffffff;--border:#e4e7ec;--border-strong:#d5dae2;--ink:#161a20;--muted:#5b6572;--faint:#8892a0;--accent:#1e48c4;--accent-deep:#0e2a66;--tint:#eef2fc;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(1100px 500px at 50% -10%,#eef2fc 0,rgba(238,242,252,0) 60%),var(--bg);font-family:ui-sans-serif,Segoe UI,system-ui,-apple-system,sans-serif;color:var(--ink);-webkit-font-smoothing:antialiased}.ld-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:0 10px 40px rgba(16,24,40,.08),0 1px 2px rgba(16,24,40,.04);padding:34px 30px}.ld-brand{flex-direction:column;gap:12px;margin-bottom:22px}.ld-brand,.ld-mark{display:flex;align-items:center}.ld-mark{width:44px;height:44px;border-radius:11px;background:linear-gradient(155deg,#1e48c4,#0e2a66);justify-content:center}.ld-mark svg{width:22px;height:22px}.ld-title{font-size:22px;font-weight:700;letter-spacing:-.01em;margin:0}.ld-sub{font-size:14px;color:var(--muted);margin:2px 0 0}.ld-tabs{display:flex;gap:4px;background:var(--bg);border:1px solid var(--border);border-radius:9px;padding:4px;margin-bottom:20px}.ld-tab{flex:1;padding:8px 0;font-size:13px;font-weight:600;border:0;border-radius:6px;background:transparent;color:var(--muted);cursor:pointer;transition:background .12s,color .12s}.ld-tab:hover{color:var(--ink)}.ld-tab.active{background:var(--surface);color:var(--accent);box-shadow:0 1px 2px rgba(16,24,40,.06)}.ld-field{margin-bottom:14px}.ld-label{display:block;font-size:13px;font-weight:500;color:var(--muted);margin-bottom:6px}.ld-input{width:100%;padding:11px 13px;font-size:14px;border:1px solid var(--border-strong);border-radius:8px;background:var(--surface);color:var(--ink);outline:none;transition:border-color .12s,box-shadow .12s}.ld-input::placeholder{color:var(--faint)}.ld-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(30,72,196,.12)}.ld-btn{width:100%;padding:11px 16px;font-size:14px;font-weight:600;border:0;border-radius:8px;background:var(--accent);color:#fff;cursor:pointer;transition:background .12s,opacity .12s}.ld-btn:hover{background:var(--accent-deep)}.ld-btn:disabled{opacity:.6;cursor:default}.ld-btn-google{width:100%;padding:11px 16px;font-size:14px;font-weight:600;border:1px solid var(--border-strong);border-radius:8px;background:var(--surface);color:var(--ink);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;transition:background .12s}.ld-btn-google:hover{background:var(--bg)}.ld-hint{font-size:12px;color:var(--faint);text-align:center;margin:12px 0 0}.ld-error{font-size:13px;color:#b91c1c;background:#fdecec;border:1px solid #f7d4d4;border-radius:8px;padding:10px 12px;margin-bottom:16px}.ld-success{text-align:center;padding:8px 0 4px}.ld-success-mark{width:46px;height:46px;border-radius:50%;background:var(--tint);color:var(--accent);display:flex;align-items:center;justify-content:center;margin:0 auto 14px}.ld-success h2{font-size:17px;font-weight:600;margin:0 0 6px}.ld-success p{font-size:14px;color:var(--muted);margin:0 0 16px}.ld-linkbtn,.ld-success strong{color:var(--accent)}.ld-linkbtn{font-size:13px;background:none;border:0;cursor:pointer;text-decoration:underline}