:root {
    --bg-color: #FFFFFF;
    --text-color: #22252A;
    --secondary-text-color: #808080;
    --placeholder-bg: #F0F0F0;
    --button-bg: #22252A;
    --button-text: #FFFFFF;
    --font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}
body {
    margin: 0;
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}
.header .logo {
    width: 52px;
}
.headerLogo {
    justify-items: center;
}
.header .nav-links {
    display: none;
}
.header .nav-links a {
    text-decoration: none;
    color: var(--text-color);
    margin: 0 15px;
    font-size: 15px;
}
.btn {
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: bold;
    transition: opacity 0.2s;
    border: none;
    cursor: pointer;
}
.btn:hover {
    opacity: 0.8;
}
.btn-primary {
    background-color: var(--button-bg);
    color: var(--button-text);
}

.hero {
    text-align: center;
    padding: 60px 0;
}
.hero h1 {
    font-size: 36px;
    font-weight: bold;
    line-height: 1.3;
    margin: 0 0 30px;
    word-break: keep-all;
}
.hero h1 span{
    color: #FF9A43;
}
.hero .btn-stores {
    display: inline-block;
    margin-bottom: 60px;
}
.image-placeholder {
    width: 100%;
    background-color: var(--placeholder-bg);
    border-radius: 12px;
}
.hero-image {
    height: 450px;
    /* background-color: var(--placeholder-bg); */
    background-image: url("./assets/img_appscreen_mobile.png");
    background-size: contain;
    background-position: center 40px;
    background-repeat: no-repeat;
}
.features {
    padding: 0 0 60px 0;
}
.feature-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
}
.feature-item {
    text-align: center;
    word-break: keep-all;
}
.feature-item .icon-placeholder {
    width: 100%;
    height: 200px;
    margin: 0 auto 20px;
}
.feature-item h3 {
    font-size: 18px;
    margin: 0 0 10px;
}
.feature-item p {
    font-size: 15px;
    color: var(--secondary-text-color);
    line-height: 1.6;
    margin: 0;
}
.gallery {
    padding: 40px 0;
}
.gallery-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.gallery-item .image-placeholder {
    height: 250px;
}
.final-cta {
    text-align: center;
    padding: 80px 0;
    border-top: 1px solid var(--placeholder-bg);
}
.final-cta h2 {
    font-size: 28px;
    font-weight: bold;
    margin: 0 0 10px;
}
.final-cta p {
    color: var(--secondary-text-color);
    margin: 0 0 25px;
}
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--placeholder-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}
.footer-text {
    font-size: 14px;
}
.footer-links a{
    font-size: 14px;
    color: var(--secondary-text-color);
    text-decoration: none;
}
.footer-links a:nth-last-child(1){
    margin-left: 14px;
}
.footer-column {
    text-align: center;
}
.footer-column h4 {
    font-size: 14px;
    margin: 0 0 15px;
}
.footer-column a {
    display: block;
    text-decoration: none;
    color: var(--secondary-text-color);
    font-size: 14px;
    margin-bottom: 10px;
}
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}
.modal-overlay.show {
    opacity: 1;
}
.modal-content {
    background-color: #FFFFFF;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 90%;
    max-width: 380px;
    transform: scale(0.9);
    transition: transform 0.3s ease-in-out;
}
.modal-overlay.show .modal-content {
    transform: scale(1);
}
.modal-content h2 {
    font-size: 22px;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 12px;
}
.modal-content p {
    font-size: 15px;
    color: #666666;
    line-height: 1.6;
    margin-bottom: 24px;
}
.modal-content .btn {
    width: 100%;
    box-sizing: border-box; 
}
@media (min-width: 768px) {
    .header .nav-links {
        display: block;
    }
    .hero h1 {
        font-size: 52px;
    }
    .hero-image {
        height: 450px;
        background-color: var(--placeholder-bg);
        background-image: url("./assets/img_appscreen.png");
        background-size: contain;
        background-position: center 50px;
        background-repeat: no-repeat;
    }
    .feature-grid, .gallery-grid {
        flex-direction: row;
        gap: 20px;
    }
    .feature-item, .gallery-item {
        flex: 1;
    }
    .final-cta h2 {
        font-size: 30px;
    }
    .footer {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }
    .footer-links {
        flex-direction: row;
        gap: 60px;
    }
    .footer-column {
        text-align: left;
    }
}

@media (min-width: 1024px) {
    .hero h1 {
        font-size: 48px;
    }
    .hero-image {
        height: 450px;
        background-color: var(--placeholder-bg);
        background-image: url("./assets/img_appscreen.png");
        background-size: contain;
        background-position: center 51px;
        background-repeat: no-repeat;
    }
}