body {
    font-family: 'Arial', sans-serif;
    background: #f4f6f8;
    margin: 0;
    padding: 0;
}
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 15px; /* 모바일 여백 확보 */
    box-sizing: border-box;
}

h1 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: #fff;
    background-color: #333;
    border-bottom: 3px solid #ff6f61;
    border-radius: 0 0 10px 10px;
    padding: 15px 10px;
}

p.description {
    text-align: center;
    color: #666;
    font-size: 1rem;
    line-height: 1.7;
    max-width: 700px;
    margin: 20px auto 35px auto;
    background: #f9f9f9;
    padding: 20px 25px;
    border-left: 5px solid #ff6f61;
    border-radius: 8px;
}

/* 컨텐츠와 사이드바 */
.content-wrapper {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

/* 메인 콘텐츠 */
.main-content {
    flex: 1 1 0;
    min-width: 300px;
    background: #fff;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
    box-sizing: border-box;
}

/* 사이드바 */
.sidebar {
    flex: 0 0 250px;
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    height: fit-content;
    box-sizing: border-box;
}

/* IP 조회 폼 */
form.ip-form {
    text-align: center;
    margin-bottom: 30px;
}
form.ip-form input[type="text"] {
    width: 60%;
    padding: 8px 12px;
    font-size: 1rem;
    border-radius: 5px;
    border: 1px solid #ccc;
    box-sizing: border-box;
}
form.ip-form button {
    padding: 8px 16px;
    font-size: 1rem;
    background-color: #ff6f61;
    border: none;
    border-radius: 5px;
    color: white;
    cursor: pointer;
    margin-left: 8px;
    transition: background 0.3s;
    box-sizing: border-box;
}
form.ip-form button:hover {
    background-color: #e64a19;
}

/* 정보 섹션 */
.info-section {
    margin-bottom: 30px;
}
.info-section h2 {
    font-size: 1.2rem;
    color: #ff6f61;
    margin-bottom: 10px;
    border-bottom: 2px solid #ff6f61;
    padding-bottom: 5px;
}
.info-section p {
    font-size: 1rem;
    color: #555;
    margin: 5px 0;
}

/* Geo 정보 그리드 */
.geo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 20px;
}
.geo-grid p {
    margin: 0;
    padding: 8px;
    background: #f0f2f5;
    border-radius: 5px;
    text-align: center;
    font-weight: bold;
}

/* 구글 검색 */
.google-search input[type="text"] {
    width: 100%;
    padding: 8px 10px;
    margin-bottom: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
    box-sizing: border-box;
}
.google-search button {
    width: 100%;
    padding: 8px;
    background-color: #4285F4;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.3s;
}
.google-search button:hover {
    background-color: #3367D6;
}

/* 네트워크 정보 토글 */
.info-item {
    margin-bottom: 10px;
    cursor: pointer;
    
}
.info-title {
    background: #f0f2f5;
    padding: 8px 10px;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.3s;
   
}
.info-title:hover {
    background: #ff6f61;
    color: #fff;
}
.info-content {
    padding: 8px 10px;
    margin-top: 5px;
    background: #fafafa;
    border-left: 3px solid #ff6f61;
    border-radius: 5px;
    font-size: 0.95rem;
    line-height: 1.5;
    display: none;

}

/* 푸터 */
.site-footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    margin:20px 0 0 0;
    padding: 20px 15px;
    font-size: 0.9rem;
    border-top: 3px solid #ff6f61;
}
.site-footer a {
    color: #ff6f61;
    text-decoration: none;
    margin: 0 5px;
    transition: color 0.3s;
}
.site-footer a:hover {
    color: #ffa07a;
}

/* 모바일 반응형 */
@media(max-width: 768px){
    .content-wrapper {
        flex-direction: column;
        gap: 15px;
    }
    .main-content,
    .sidebar {
        width: 100%;
    }
    form.ip-form input[type="text"] {
        width: 100%;
        margin-bottom: 10px;
    }
    form.ip-form button {
        width: 100%;
    }
    .geo-grid {
        grid-template-columns: 1fr;
    }
}