/* --- CSS Reset & Variables --- */
:root {
    --primary-color: #0061A4;
    --secondary-color: #00497D;
    --text-main: #1a1a1a;
    --white: #ffffff;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Noto Sans KR', sans-serif; }
body { color: var(--text-main); line-height: 1.6; background-color: var(--white); }
a { text-decoration: none; color: inherit; }

/* --- Hero Section --- */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 60px 20px;
}

.hero-content {
    max-width: 700px;
    width: 100%;
}

/* --- Logo & Info Group --- */
.brand-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 24px;
}

/* 로고 이미지 스타일 */
.logo-image {
    width: 80px;
    height: 80px;
    object-fit: contain; /* 이미지 비율 유지 */
    flex-shrink: 0;
}

.brand-text {
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -1.5px;
    margin-bottom: 4px;
}

.app-desc {
    font-size: 1.2rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: -0.5px;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 45px;
    line-height: 1.25;
    letter-spacing: -0.5px;
    word-break: keep-all; 
}

/* --- UI Group Components --- */
.ui-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    width: 100%;
}

.security-badge, .btn-web, .divider {
    width: 100%;
    max-width: 400px; 
}

.security-badge {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.security-icon {
    font-size: 1.5rem;
}

.security-text {
    font-size: 0.9rem;
    text-align: left;
    font-weight: 400;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.95);
}

.btn-web {
    background-color: var(--white);
    color: var(--primary-color);
    font-size: 1.15rem;
    font-weight: 700;
    padding: 18px 0;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: background-color 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
}

.btn-web:hover {
    background-color: #f2f2f2;
}

.divider {
    height: 1px;
    background-color: rgba(255, 255, 255, 0.2);
    margin: 10px 0;
}

.mobile-label {
    font-size: 0.95rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 10px;
    word-break: keep-all;
}

.store-btns {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.btn-store {
    height: 50px;
}

/* --- Footer --- */
.hero-footer {
    margin-top: 30px;
    font-size: 0.8rem;
    opacity: 0.5;
}

@media (max-width: 480px) {
    .security-badge, .btn-web, .divider {
        width: 100%;
    }
}