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

body {
    font-family: 'Malgun Gothic', 'Apple SD Gothic Neo', sans-serif;
    line-height: 1.6;
    color: #334155;
    background-color: #f8fafc;
}

a {
    text-decoration: none;
    color: inherit;
}

/* 헤더 & 네비게이션 */
header {
    background: #0f172a;
    color: #ffffff;
    padding: 30px 20px;
    text-align: center;
    border-bottom: 4px solid #2563eb;
}

header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 5px;
}

header p {
    color: #94a3b8;
    font-size: 1rem;
}

nav {
    background: #1e293b;
    position: sticky;
    top: 0;
    z-index: 100;
    text-align: center;
    padding: 12px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

nav a {
    color: #cbd5e1;
    margin: 0 20px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.3s;
}

nav a:hover {
    color: #38bdf8;
}

/* 메인 비주얼 배너 */
.hero {
    background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%);
    color: #ffffff;
    padding: 80px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    color: #f8fafc;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.25rem;
    color: #93c5fd;
    max-width: 800px;
    margin: 0 auto 35px;
    word-break: keep-all;
}

/* 버튼 스타일 */
.btn {
    display: inline-block;
    background: #2563eb;
    color: #ffffff;
    padding: 14px 30px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 1rem;
    margin: 10px;
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.2);
    transition: all 0.3s;
}

.btn:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

.btn-secondary {
    background: #16a34a;
    box-shadow: 0 4px 6px rgba(22, 163, 74, 0.2);
}

.btn-secondary:hover {
    background: #15803d;
}

/* 서비스 카드 섹션 */
.services {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 35px 25px;
    width: 340px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.card h3 {
    color: #1e3a8a;
    font-size: 1.3rem;
    margin-bottom: 15px;
    border-bottom: 2px solid #eff6ff;
    padding-bottom: 10px;
}

.card p {
    font-size: 0.95rem;
    color: #475569;
    margin-bottom: 12px;
}

.card strong {
    color: #0f172a;
    display: inline-block;
    margin-top: 5px;
}

/* 결제 및 안내 섹션 */
.info-section {
    background: #f1f5f9;
    padding: 60px 20px;
    text-align: center;
    border-top: 1px solid #e2e8f0;
}

.info-section h2 {
    font-size: 1.8rem;
    color: #0f172a;
    margin-bottom: 15px;
}

.info-box {
    background: #ffffff;
    display: inline-block;
    padding: 20px 40px;
    border-radius: 8px;
    border: 1px solid #cbd5e1;
    margin-top: 25px;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

/* 푸터 */
footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 40px 20px;
    text-align: center;
    font-size: 0.9rem;
    border-top: 5px solid #1e293b;
    line-height: 1.8;
}

footer strong {
    color: #f1f5f9;
    font-size: 0.95rem;
}