/* 기본 리셋 및 전역 스타일 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #ffffff;
    min-height: 100vh;
    color: #333333;
}

/* 헤더 */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid #f5f5f5;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: #27AE60;
    text-decoration: none;
    transition: color 0.3s ease;
}

.logo:hover {
    color: #32CD32;
}

.logo-img {
    height: 40px;
    width: auto;
    transition: transform 0.3s ease;
    cursor: pointer;
}

.logo-img:hover {
    transform: scale(1.05);
}

.search-container {
    flex: 1;
    max-width: 400px;
    margin: 0 2rem;
    position: relative;
}

.search-bar {
    width: 100%;
    padding: 12px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 25px;
    font-size: 14px;
    transition: all 0.3s ease;
    background: white;
    color: #333333;
}

.search-bar:focus {
    outline: none;
    border-color: #27AE60;
    box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.1);
}

.search-bar::placeholder {
    color: #757575;
}

.login-btn {
    background: linear-gradient(45deg, #27AE60, #32CD32);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(39, 174, 96, 0.4);
    background: linear-gradient(45deg, #32CD32, #27AE60);
}

/* 메인 컨테이너 */
.main-container {
    display: grid;
    grid-template-columns: 1fr 500px;
    gap: 2rem;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* 왼쪽 콘텐츠 */
.left-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* 오른쪽 사이드바 */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* 공통 섹션 제목 스타일 */
.section-title {
    color: #212121;
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    font-weight: bold;
    border-bottom: 3px solid #27AE60;
    padding-bottom: 0.5rem;
    display: inline-block;
}

/* 반응형 디자인 */
@media (max-width: 1200px) {
    .main-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .search-container {
        width: 100%;
        max-width: none;
        margin: 0;
    }
    
    .main-container {
        padding: 1rem;
    }
}