:root {
           
		 --primary-color: #e93131;
            --primary-hover: #090808;
            --primary-light: #e0e7ff;
            --bg-gradient-1: #db4841;
            --bg-gradient-2: #db4841;
            --bg-gradient-3: #db4841;
            --text-dark: #1f2937;
            --text-muted: #6b7280;
            --border-light: #d1d5db;
			--border-light-red: #f4c7c6;
			--bg-light: #ddd;
			--bg-lightred: #fce4e3;
            --bg-input: #f9fafb;
            --white: #ffffff;
            --error: #ef4444;
            --success: #22c55e;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
            height: 100vh;
            display: flex;
            overflow: hidden;
            -webkit-font-smoothing: antialiased;
        }
 /* 4. 링크(a 태그) 상태별 커스텀 */
        a {
            color: var(--custom-link-color);
            text-decoration: none; /* 기본 상태에서 밑줄 제거 */
            transition: all 0.2s ease-in-out;
        }
        /* 전체 레이아웃 분할 컨테이너 */
        .split-container {
            display: flex;
            width: 100vw;
            height: 100vh;
        }

        /* 좌측 영역 (30%): 배너 및 브랜드 비주얼 */
        .split-left {
            flex: 0 0 30%;
            background: linear-gradient(135deg, var(--bg-gradient-1), var(--bg-gradient-2), var(--bg-gradient-3));
            color: var(--white);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            padding: 3rem;
            position: relative;
            overflow: hidden;
        }

        /* 좌측 장식용 배경 그래픽 오버레이 */
        .split-left::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
            transform: rotate(30deg);
            pointer-events: none;
        }

        .left-brand {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 700;
            font-size: 1.25rem;
            letter-spacing: -0.025em;
        }

        .left-brand-icon {
            width: 2.5rem;
            height: 2.5rem;
            background: rgba(255, 255, 255, 1);
            border-radius: 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(4px);
        }

        .left-brand-icon svg,.left-brand-icon img {
            width: 1.5rem;
            height: 1.5rem;
            color: var(--white);
        }

        .left-content {
            z-index: 1;
        }

        .left-title {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
            letter-spacing: -0.03em;
        }

        .left-description {
            font-size: 1rem;
            line-height: 1.6;
            opacity: 0.9;
            font-weight: 400;
        }

        .left-footer {
            font-size: 0.875rem;
            opacity: 0.8;
        }

        /* 우측 영역 (70%): 로그인 폼 영역 */
        .split-right {
            flex: 0 0 70%;
            background-color:var(--bg-lightred);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 2rem;
            overflow-y: auto;
        }

        .login-box {
            width: 100%;
            max-width: 440px;border: 1px solid var(--border-light-red); border-radius: 0.75rem;padding:30px; background-color:#fff;
        }

        .login-header {
            margin-bottom: 2rem;
        }

        .login-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.025em;
            margin-bottom: 0.5rem;
        }

        .login-slogan {
            font-size: 0.9375rem;
            color: var(--text-muted);
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-label {
            display: block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
        }

        .input-wrapper {
            position: relative;
        }

        .input-icon {
            position: absolute;
            top: 0;
            bottom: 0;
            left: 0;
            padding-left: 1rem;
            display: flex;
            align-items: center;
            pointer-events: none;
            color: #9ca3af;
        }

        .input-icon svg {
            width: 1.25rem;
            height: 1.25rem;
        }

        .form-input {
            width: 100%;
            padding: 0.875rem 1rem 0.875rem 3rem;
            border-radius: 0.75rem;
            border: 1px solid var(--border-light);
            background-color: var(--bg-input);
            color: var(--text-dark);
            font-size: 1rem;
            font-family: inherit;
            transition: all 0.2s ease;
        }

        .form-input:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
            background-color: var(--white);
        }

        /* 브라우저 자동완성(Autofill) 배경색 덮어쓰기 로직 */
        .form-input:-webkit-autofill,
        .form-input:-webkit-autofill:hover,
        .form-input:-webkit-autofill:focus,
        .form-input:-webkit-autofill:active {
            -webkit-box-shadow: 0 0 0 1000px var(--bg-input) inset !important;
            box-shadow: 0 0 0 1000px var(--bg-input) inset !important;
            -webkit-text-fill-color: var(--text-dark) !important;
            transition: background-color 5000s ease-in-out 0s;
            caret-color: var(--text-dark);
        }

        .form-input:focus:-webkit-autofill {
             -webkit-box-shadow: 0 0 0 1000px var(--white) inset !important;
             box-shadow: 0 0 0 1000px var(--white) inset !important;
        }

        .form-options {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 0.75rem;
            margin-bottom: 1.5rem;
        }

        .checkbox-label {
            display: flex;
            align-items: center;
            font-size: 0.875rem;
            color: var(--text-dark);
            cursor: pointer;
        }

        .checkbox-input {
            width: 1.125rem;
            height: 1.125rem;
            margin-right: 0.5rem;
            accent-color: var(--primary-color);
            cursor: pointer;
        }

        .forgot-link {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--primary-color);
            text-decoration: none;
            transition: color 0.2s;
        }

        .forgot-link:hover {
            color: var(--primary-hover);
        }

        .submit-btn {
            width: 100%;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 0.875rem 1rem;
            border: none;
            border-radius: 0.75rem;
            background-color: var(--bg-gradient-1);
            color: var(--white);
            font-size: 1rem;
            font-weight: 700;
            font-family: inherit;
            cursor: pointer;
            box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.2);
            transition: all 0.2s ease;
        }

        .submit-btn:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
        }

        .submit-btn:focus {
            outline: none;
            box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.3);
        }
        
        .submit-btn:disabled {
            opacity: 0.7;
            cursor: not-allowed;
            transform: none;
        }

       

        /* 반응형 미디어쿼리 (모바일 기기 대응) */
        @media (max-width: 768px) {
            .split-left {
                display: none; /* 모바일 환경에서는 좌측 배너 영역 히든 처리 */
            }
            .split-right {
                flex: 0 0 100%; /* 우측 영역이 전체 화면을 차지하도록 확장 */
                padding: 1.5rem;
            }
        }