:root{--auth-accent:#2e4a62;--auth-accent-hover:#3d6d8f;--auth-accent-light:rgba(46,74,98,0.07);--eureka-cream:#faf8f3;--eureka-warm:#f5f0e8;--text-primary:#1a1a1a;--text-secondary:#5a5a5a;--text-muted:#8a8a8a;--border-light:#e4dfd7;--error-red:#c0392b;--success-green:#1a7a5e;--ease-out:cubic-bezier(0.16,1,0.3,1)}.auth-page-bg{min-height:100vh;background-color:#f4f1eb;background-image:radial-gradient(ellipse at 25% 50%,rgba(46,74,98,0.04) 0%,transparent 60%),radial-gradient(ellipse at 75% 20%,rgba(61,109,143,0.03) 0%,transparent 55%);display:flex;align-items:center;justify-content:center;padding:48px 20px;position:relative}.auth-page-bg::before{content:'';position:fixed;inset:0;opacity:0.02;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");pointer-events:none;z-index:0}.login-container,.register-container{width:100%;max-width:460px;margin:0 auto;animation:cardEntry 0.6s var(--ease-out) both;position:relative;z-index:1}.register-container{max-width:500px}@keyframes cardEntry{from{opacity:0;transform:translateY(24px) scale(0.98)}to{opacity:1;transform:translateY(0) scale(1)}}.login-card,.register-card{background:#fff;border-radius:16px;box-shadow:0 1px 2px rgba(0,0,0,0.03),0 4px 16px rgba(0,0,0,0.05),0 16px 48px rgba(46,74,98,0.06);padding:52px 48px 44px;border:1px solid rgba(46,74,98,0.06)}.auth-brand{text-align:center;margin-bottom:8px}.auth-brand-mark{display:inline-block;width:48px;height:3px;background:linear-gradient(90deg,var(--auth-accent),var(--auth-accent-hover));border-radius:2px;margin-bottom:20px}.login-title,.register-title{font-family:'Pretendard',sans-serif;text-align:center;font-size:26px;font-weight:900;letter-spacing:-0.02em;color:var(--text-primary);margin-bottom:6px}.auth-subtitle{font-family:'Pretendard',sans-serif;text-align:center;font-size:14px;color:var(--text-muted);margin-bottom:36px;letter-spacing:0;font-weight:400}.form-group{margin-bottom:22px}.form-label{display:block;margin-bottom:8px;font-family:'Pretendard',sans-serif;font-size:13px;font-weight:600;letter-spacing:0.02em;color:var(--text-primary)}.form-label .required{color:var(--auth-accent-hover);margin-left:2px}.form-control{width:100%;height:50px;padding:0 16px;background:#f8f6f2;border:1.5px solid transparent;border-bottom-color:var(--border-light);border-radius:10px;font-family:'Pretendard',sans-serif;font-size:15px;color:var(--text-primary);transition:border-color 0.3s var(--ease-out),background 0.3s var(--ease-out),box-shadow 0.3s var(--ease-out);box-sizing:border-box;appearance:none;-webkit-appearance:none}.form-control::placeholder{color:#bfb8ae;font-weight:400}.form-control:focus{outline:none;background:#fff;border-color:var(--auth-accent);box-shadow:0 0 0 3px rgba(46,74,98,0.1)}.form-control.is-invalid{border-color:var(--error-red);box-shadow:0 0 0 3px rgba(192,57,43,0.08)}.form-text{font-family:'Pretendard',sans-serif;font-size:12px;color:var(--text-muted);margin-top:6px;display:block;line-height:1.5}.form-error{font-family:'Pretendard',sans-serif;font-size:12px;color:var(--error-red);margin-top:6px;display:block}.form-check{display:flex;align-items:center;margin-bottom:24px;gap:10px}.form-check input[type="checkbox"]{width:18px;height:18px;flex-shrink:0;accent-color:var(--auth-accent);cursor:pointer;border-radius:4px}.form-check label{font-family:'Pretendard',sans-serif;font-size:14px;color:var(--text-secondary);cursor:pointer;user-select:none}.btn.btn-primary.btn-block.main-btn,button[type="submit"].btn.btn-primary.btn-block.main-btn{display:block;width:100%;height:52px;padding:0 24px;background:var(--auth-accent);color:#fff;border:none;border-radius:26px;font-family:'Pretendard',sans-serif;font-size:15px;font-weight:700;letter-spacing:0.02em;cursor:pointer;transition:background 0.35s var(--ease-out),transform 0.25s var(--ease-out),box-shadow 0.35s var(--ease-out);box-shadow:0 4px 20px rgba(46,74,98,0.2)}.btn.btn-primary.btn-block.main-btn:hover{background:var(--auth-accent-hover);box-shadow:0 6px 28px rgba(61,109,143,0.28);transform:translateY(-1px)}.btn.btn-primary.btn-block.main-btn:active{transform:translateY(0) scale(0.98);box-shadow:0 2px 10px rgba(46,74,98,0.15)}.email-check-group{display:flex;gap:10px;align-items:stretch}.email-check-group .form-control{flex:1;min-width:0}.btn-check{flex-shrink:0;height:50px;padding:0 20px;background:transparent;color:var(--auth-accent);border:1.5px solid var(--auth-accent);border-radius:10px;font-family:'Pretendard',sans-serif;font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap;transition:background 0.3s var(--ease-out),color 0.3s var(--ease-out),transform 0.2s var(--ease-out)}.btn-check:hover{background:var(--auth-accent);color:#fff;transform:translateY(-1px)}.btn-check:active{transform:scale(0.97)}.divider{text-align:center;margin:28px 0;position:relative}.divider::before{content:'';position:absolute;top:50%;left:0;right:0;height:1px;background:var(--border-light)}.divider span{position:relative;background:#fff;padding:0 16px;font-family:'Pretendard',sans-serif;font-size:12px;letter-spacing:0.05em;color:var(--text-muted)}.social-login{display:flex;flex-direction:column;gap:12px;margin-bottom:8px}.btn-social{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;height:48px;padding:0 20px;border:none;border-radius:10px;font-family:'Pretendard',sans-serif;font-size:14px;font-weight:600;cursor:pointer;transition:filter 0.2s ease,transform 0.25s var(--ease-out);text-decoration:none}.btn-social:hover{filter:brightness(0.93);transform:translateY(-1px)}.btn-social:active{transform:translateY(0)}.btn-naver{background:#03c75a;color:#fff}.btn-kakao{background:#fee500;color:#3c1e1e}.btn-social .social-icon{width:20px;height:20px;flex-shrink:0;font-size:15px;font-weight:900;line-height:1}.login-footer,.register-footer{text-align:center;margin-top:28px;padding-top:24px;border-top:1px solid var(--border-light);font-family:'Pretendard',sans-serif;font-size:14px;color:var(--text-muted)}.login-footer a,.register-footer a{color:var(--auth-accent);text-decoration:none;font-weight:600;border-bottom:1px solid transparent;transition:all 0.25s var(--ease-out)}.login-footer a:hover,.register-footer a:hover{border-bottom-color:var(--auth-accent-hover);color:var(--auth-accent-hover)}#emailCheckMsg{font-family:'Pretendard',sans-serif;font-size:12px;margin-top:6px;display:block}@media (max-width:520px){.auth-page-bg{padding:20px 14px;align-items:flex-start}.login-card,.register-card{padding:36px 24px 32px;border-radius:12px}.login-title,.register-title{font-size:22px}.auth-subtitle{font-size:13px;margin-bottom:28px}.form-control{height:48px;font-size:14px}.btn-check{height:48px}.email-check-group{flex-direction:column}.btn-check{width:100%}.btn.btn-primary.btn-block.main-btn{height:50px;font-size:14px}}@media (hover:none){.btn.btn-primary.btn-block.main-btn:hover{transform:none;box-shadow:0 4px 20px rgba(46,74,98,0.2)}.btn-check:hover{transform:none}.btn-social:hover{transform:none;filter:none}}@media (prefers-reduced-motion:reduce){.login-container,.register-container{animation:none}.form-control,.btn-check,.btn-social,.btn.btn-primary.btn-block.main-btn{transition-duration:0.01s}}