/* 기본 스타일 초기화 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Noto Sans KR', sans-serif;
}

body {
    background-color: #f8fafc;
    color: #334155;
    line-height: 1.6;
}

/* 헤더 / 상단 바 */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 8%;
    background-color: #ffffff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.logo {
    font-size: 32px;
    font-weight: 700;
    color: #2563eb;
}

.icon {
    width:48px;
}

/* 메인 히어로 섹션 */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 80px 8%;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-text {
    flex: 1;
    padding-right: 40px;
}

.hero-text h1 {
    font-size: 48px;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #0f172a;
}

.hero-text p {
    font-size: 18px;
    color: #64748b;
    margin-bottom: 30px;
}

/* 다운로드 버튼 */
.download-btn {
    display: inline-block;
    background-color: #2563eb;
    color: #ffffff;
    padding: 15px 35px;
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 30px;
    transition: background 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
}

.download-btn:hover {
    background-color: #1d4ed8;
}

/* 앱 스크린샷 영역 */
.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    
    background-color: #e2e8f0; /* 실제 앱 스크린샷 이미지 주소(img src)로 대체하세요 */
    border: 12px solid #0f172a;
    border-radius: 36px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
    font-weight: bold;
    overflow: hidden;
}

.screenshot {
    width: 250px;
    margin-right: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
}

/* 특징(Features) 섹션 */
.features {
    background-color: #ffffff;
    padding: 80px 8%;
    text-align: center;
}

.features h2 {
    font-size: 32px;
    margin-bottom: 40px;
    color: #0f172a;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    padding: 30px;
    background: #f8fafc;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
}

.card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #1e293b;
}


/* 푸터 (하단 정보 및 개인정보처리방침) */
footer {
    background-color: #0f172a;
    color: #94a3b8;
    padding: 40px 8%;
    text-align: center;
    font-size: 14px;
}

footer a {
    color: #38bdf8;
    text-decoration: none;
    margin: 0 10px;
}

/* 모바일 대응 반응형 디자인 */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 40px 20px;
    }
    .hero-text {
        padding-right: 0;
        margin-bottom: 40px;
    }
    .hero-text h1 {
        font-size: 32px;
    }
}