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

html, body {
    height: 100%;
}

body {
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #161616;
    background-color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 0 30px 40px;
    text-align: center;
}

.logo {
    margin-bottom: 40px;
}

.logo a {
    display: inline-block;
}

.logo img {
    height: 60px;
}

h1 {
    font-size: 28px;
    font-weight: 500;
    color: #161616;
    margin-bottom: 12px;
}

.subtitle {
    font-size: 15px;
    font-weight: 300;
    color: #666;
    margin-bottom: 40px;
}

.kakao-login-btn {
    width: 100%;
    padding: 16px 24px;
    background-color: #FEE500;
    color: #000000;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: background-color 0.3s;
    font-family: 'Noto Sans KR', sans-serif;
}

.kakao-login-btn:hover {
    background-color: #FDD835;
}

.kakao-login-btn i {
    font-size: 20px;
}

.divider {
    margin: 30px 0;
    position: relative;
    text-align: center;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background-color: #ddd;
}

.divider span {
    position: relative;
    background-color: #fff;
    padding: 0 15px;
    color: #999;
    font-size: 14px;
}

.back-link {
    display: inline-block;
    color: #666;
    text-decoration: none;
    font-size: 14px;
    padding: 10px 20px;
    border: 1px solid #ddd;
    border-radius: 8px;
    transition: all 0.3s;
}

.back-link:hover {
    color: #161616;
    border-color: #161616;
}

@media (max-width: 768px) {
    .login-container {
        padding: 40px 20px;
    }

    .logo img {
        height: 50px;
    }

    h1 {
        font-size: 24px;
    }

    .subtitle {
        font-size: 14px;
    }

    .kakao-login-btn {
        font-size: 15px;
        padding: 14px 20px;
    }
}