.form-group{margin-bottom:20px}.form-label{font-size:var(--text-footnote);font-weight:600;color:var(--bs-secondary-color);margin-bottom:10px;display:block;letter-spacing:.5px;text-transform:uppercase}.form-input{width:100%;padding:16px 0;border:none;border-bottom:2px solid var(--apple-gray-4);font-size:var(--text-body);font-weight:400;color:var(--bs-emphasis-color);background:0 0;transition:border-color .2s ease;outline:0}.form-input:focus{border-bottom-color:var(--bs-primary)}.form-input::placeholder{color:var(--apple-gray)}.text-link{color:var(--bs-primary);text-decoration:none;cursor:pointer;transition:color .2s ease}.text-link:hover{color:var(--bs-secondary);text-decoration:underline}.divider{position:relative;text-align:center;margin:32px 0}.divider::before{content:'';position:absolute;top:50%;left:0;right:0;height:1px;background:var(--apple-gray-5)}.divider-text{position:relative;display:inline-block;padding:0 16px;background:var(--bg-base);color:var(--apple-gray);font-size:var(--text-footnote);font-weight:500}.validation-error{color:var(--apple-red);font-size:var(--text-footnote);margin-top:6px;display:block}.alert-error{background:var(--color-red-subtle);border:1px solid var(--color-red-light);color:var(--bs-danger);padding:12px 16px;border-radius:8px;margin-bottom:24px;font-size:var(--text-footnote)}.validation-summary-errors{margin-bottom:24px}.validation-summary-errors ul{list-style:none;padding:0;margin:0}.validation-summary-errors li{color:var(--apple-red);font-size:var(--text-footnote);line-height:1.5;display:flex;align-items:flex-start;gap:8px}.validation-summary-errors li:not(:last-child){margin-bottom:8px}.validation-summary-errors li::before{content:'•';font-weight:700;flex-shrink:0}.login-section{min-height:calc(100vh - 52px);display:flex;align-items:center;justify-content:center;padding:40px 20px}.login-container{width:100%;max-width:420px}.login-header{text-align:left;margin-bottom:48px}.login-title{font-size:var(--text-large-title);font-weight:800;color:var(--bs-emphasis-color);margin-bottom:8px;letter-spacing:-.03em;line-height:1.1}.login-subtitle{font-size:var(--text-title-4);color:var(--bs-secondary-color);font-weight:400;line-height:1.4;letter-spacing:-.01em}.form-options{display:flex;justify-content:space-between;align-items:center;margin-bottom:40px;margin-top:32px}.login-section .form-checkbox{display:flex;align-items:center;gap:8px;margin:0}.login-section .form-checkbox input[type=checkbox]{width:18px;height:18px;margin-top:0}.forgot-link{font-size:var(--text-footnote);color:var(--bs-primary);text-decoration:none;font-weight:500;transition:color .2s ease}.forgot-link:hover{color:var(--bs-secondary)}.signup-link{text-align:center;margin-top:24px;font-size:var(--text-footnote);color:var(--bs-secondary-color)}.signup-link a{color:var(--bs-primary);text-decoration:none;font-weight:600;transition:color .2s ease}.signup-link a:hover{color:var(--bs-secondary)}.register-section{min-height:calc(100vh - 52px);display:flex;align-items:center;justify-content:center;padding:40px 20px}.register-container{width:100%;max-width:420px}.register-header{text-align:left;margin-bottom:48px}.register-title{font-size:var(--text-large-title);font-weight:800;color:var(--bs-emphasis-color);margin-bottom:8px;letter-spacing:-.03em;line-height:1.1}.register-subtitle{font-size:var(--text-title-4);color:var(--bs-secondary-color);font-weight:400;line-height:1.4;letter-spacing:-.01em}.login-link{text-align:center;margin-top:24px;font-size:var(--text-footnote);color:var(--bs-secondary-color)}.login-link a{color:var(--bs-primary);text-decoration:none;font-weight:600;transition:color .2s ease}.login-link a:hover{color:var(--bs-secondary)}.forgot-section{min-height:calc(100vh - 52px);display:flex;align-items:center;justify-content:center;padding:40px 20px}.forgot-container{width:100%;max-width:420px}.forgot-header{text-align:left;margin-bottom:48px}.forgot-title{font-size:var(--text-large-title);font-weight:800;color:var(--bs-emphasis-color);margin-bottom:8px;letter-spacing:-.03em;line-height:1.1}.forgot-subtitle{font-size:var(--text-title-4);color:var(--bs-secondary-color);font-weight:400;line-height:1.4;letter-spacing:-.01em}.alert-success{background:var(--gradient-primary-alpha-10);border:1px solid var(--brand-alpha-30);color:var(--bs-primary);padding:16px 20px;border-radius:12px;margin-bottom:24px;font-size:var(--text-footnote);line-height:1.5}.social-login-buttons{display:flex;flex-direction:column;gap:20px;margin-top:24px}.btn-social{width:100%;color:var(--white);padding:8px 16px;border-radius:50rem;font-size:var(--text-callout);font-weight:400;text-decoration:none;display:inline-block;transition:all .3s ease;box-shadow:var(--shadow-default)}.btn-social:hover{background-color:var(--apple-gray-6);border-color:var(--apple-gray);transform:translateY(-1px);box-shadow:var(--shadow-default)}.btn-social:active{transform:translateY(0)}.btn-social:focus-visible{outline:0;box-shadow:var(--shadow-focus-ring)}.btn-social:disabled{pointer-events:none;opacity:.65}.btn-social-apple,.btn-social-facebook,.btn-social-kakao,.btn-social-naver{display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn-social-apple{color:#fff;background-color:var(--color-apple);border-color:var(--color-apple)}.btn-social-apple:hover{color:#fff;background-color:var(--bs-emphasis-color);border-color:var(--bs-emphasis-color)}.btn-social-apple:active{color:#fff;background-color:var(--color-apple);border-color:var(--color-apple)}@media (prefers-color-scheme:dark){.btn-social-apple{color:#000}.btn-social-apple:hover{color:#000;background-color:#e5e5e7;border-color:#e5e5e7}.btn-social-apple:active{color:#000;background-color:#d1d1d6;border-color:#d1d1d6}}[data-bs-theme=dark] .btn-social-apple{color:#000}[data-bs-theme=dark] .btn-social-apple:hover{color:#000;background-color:#e5e5e7;border-color:#e5e5e7}[data-bs-theme=dark] .btn-social-apple:active{color:#000;background-color:#d1d1d6;border-color:#d1d1d6}.btn-social-kakao{color:var(--color-kakao-text);background-color:var(--color-kakao);border-color:var(--color-kakao)}.btn-social-kakao:hover{color:var(--color-kakao-text);background-color:var(--color-kakao);border-color:var(--color-kakao)}.btn-social-kakao:active{color:var(--color-kakao-text);background-color:var(--color-kakao);border-color:var(--color-kakao)}.btn-social-naver{color:#fff;background-color:var(--color-naver);border-color:var(--color-naver)}.btn-social-naver:hover{color:#fff;background-color:var(--color-naver);border-color:var(--color-naver)}.btn-social-naver:active{color:#fff;background-color:var(--color-naver);border-color:var(--color-naver)}.btn-social-facebook{color:var(--apple-gray);background-color:var(--apple-gray-6);border-color:var(--apple-gray-4);cursor:pointer}.btn-social-facebook:hover{color:var(--apple-gray);background-color:var(--apple-gray-5);border-color:var(--apple-gray-3)}.btn-social-facebook:active{color:var(--apple-gray);background-color:var(--apple-gray-4);border-color:var(--apple-gray-3)}.social-icon{width:20px;height:20px;flex-shrink:0}@media (max-width:576px){.forgot-title,.login-title,.register-title{font-size:var(--text-title-1)}.forgot-subtitle,.login-subtitle,.register-subtitle{font-size:var(--text-body)}}