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

    body {
        font-family: 'Malgun Gothic', '맑은 고딕', sans-serif;
        background-color: #ffffff;
        color: #000000;
    }

    /* 상단 메뉴바 */
    .navbar {
        background-color: #ff6347;
        padding: 0;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }

    .nav-container {
        max-width: 1200px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .logo {
        padding: 15px 20px;
        font-size: 20px;
        font-weight: bold;
        color: #ffffff;
    }

    .nav-menu {
        display: flex;
        list-style: none;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }

    .auth-menu {
        display: flex;
        list-style: none;
        margin-left: auto;
    }

    .nav-menu li {
        border-left: 1px solid rgba(255,255,255,0.3);
    }

    .nav-menu a {
        display: block;
        padding: 15px 25px;
        color: #ffffff;
        text-decoration: none;
        transition: background-color 0.2s;
    }

    .nav-menu a:hover {
        background-color: rgba(0,0,0,0.1);
    }

    .auth-menu li {
        border-left: 1px solid rgba(255,255,255,0.3);
    }

    .auth-menu a {
        display: block;
        padding: 15px 20px;
        color: #ffffff;
        text-decoration: none;
        transition: background-color 0.2s;
        font-size: 14px;
    }

    .auth-menu a:hover {
        background-color: rgba(0,0,0,0.1);
    }

    .auth-menu a.active {
        background-color: rgba(0,0,0,0.15);
    }

    /* 메인 컨테이너 */
    .container {
        max-width: 400px;
        margin: 80px auto;
        padding: 20px;
    }

    .login-box {
        background-color: #ffffff;
        border: 1px solid #e0e0e0;
        padding: 40px;
    }

    .login-title {
        font-size: 24px;
        font-weight: bold;
        text-align: center;
        margin-bottom: 30px;
        color: #000000;
    }

    .form-group {
        margin-bottom: 15px;
    }

    .form-group input {
        width: 100%;
        padding: 12px;
        border: 1px solid #e0e0e0;
        font-size: 14px;
        transition: border-color 0.2s;
    }

    .form-group input:focus {
        outline: none;
        border-color: #ff6347;
    }

    .form-group input::placeholder {
        color: #999;
    }

    .login-btn {
        width: 100%;
        padding: 12px;
        background-color: #ff6347;
        color: #ffffff;
        border: none;
        font-size: 14px;
        font-weight: bold;
        cursor: pointer;
        transition: background-color 0.2s;
        margin-top: 10px;
    }

    .login-btn:hover {
        background-color: #ff4500;
    }

    .options {
        text-align: center;
        margin-top: 20px;
        font-size: 14px;
        color: #666;
    }

    .options a {
        color: #ff6347;
        text-decoration: none;
    }

    .options a:hover {
        text-decoration: underline;
    }

    .options span {
        margin: 0 5px;
        color: #ccc;
    }

    .error-message {
        background-color: #ffe6e6;
        border: 1px solid #ff6347;
        color: #ff6347;
        padding: 10px;
        margin-top: 15px;
        text-align: center;
        font-size: 14px;
    }