/* 기본 설정 */
:root {
    --primary-color: #2563eb;
    --dark-bg: #1f2937;
    --text-main: #374151;
    --white: #ffffff;
}

body {
    margin: 0;
    font-family: 'Pretendard', sans-serif;
    color: var(--text-main);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 네비게이션 바 */
.navbar {
    height: 70px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #eee;
    background: var(--white);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    color: var(--dark-bg);
}

.menu ul {
    list-style: none;
    display: flex;
    gap: 30px;
    margin: 0;
}

.menu a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: color 0.3s;
}

.menu a:hover {
    color: var(--primary-color);
}

/* 히어로 섹션 */
.hero {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(to bottom, #f8fafc, #ffffff);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--dark-bg);
}

.hero p {
    font-size: 1.25rem;
    color: #64748b;
    margin-bottom: 40px;
}

/* 버튼 */
.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    margin: 0 10px;
    display: inline-block;
}

.btn.primary {
    background: var(--primary-color);
    color: var(--white);
}

.btn.secondary {
    background: #e2e8f0;
    color: var(--dark-bg);
}