:root {

    --brand: #08E0FC;

    --bg: #0F1115;

    --card: #171B22;

    --text: #FFFFFF;

    --muted: #9CA3AF;

}

* {

    margin: 0;

    padding: 0;

    box-sizing: border-box;

}

body {

    background: var(--bg);

    color: var(--text);

    font-family: Segoe UI, Arial, sans-serif;

}

header {

    text-align: center;

    padding: 1px 1px 1px;

    border-bottom: 1px solid #222;

}

.logo {

    width: 220px;

    max-width: 95%;

    height: auto;

}

nav {

    display: flex;

    justify-content: center;

    align-items: center;

    gap: 32px;

    margin-top: 1px;

    flex-wrap: wrap;

}


nav a,
.dropbtn {

    color: white;

    background: none;

    border: none;

    text-decoration: none;

    cursor: pointer;

    font-size: 16px;

    transition: .25s;

}

nav a:hover,
.dropbtn:hover {
    color: var(--brand);

    text-shadow:
        0 0 10px rgba(8, 224, 252, .5);

}

.dropdown {
    position: relative;
    display: inline-block;
}

/* vùng menu */
.dropdown-content {

    opacity: 0;
    visibility: hidden;

    position: absolute;

    left: 50%;

    transform:
        translateX(-50%) translateY(10px);


    top: 100%;

    margin-top: 8px;
    background: var(--card);

    min-width: 190px;

    border-radius: 14px;

    overflow: hidden;

    border: 1px solid rgba(8, 224, 252, .2);
    box-shadow:
        0 10px 30px rgba(0, 0, 0, .4);


    z-index: 1000;


    transition: .25s ease;

}


/* vùng nối giữa button và dropdown */
.dropdown-content::before {

    content: "";

    position: absolute;

    top: -10px;

    left: 0;

    width: 100%;

    height: 10px;

}


.dropdown:hover .dropdown-content {


    opacity: 1;

    visibility: visible;


    transform:
        translateX(-50%) translateY(0);


}

.dropdown-content a {


    display: block;

    padding: 14px 18px;


    color: white;

    text-decoration: none;


    transition: .2s;


}


.dropdown-content a:hover {


    background:
        rgba(8, 224, 252, .12);


    color: var(--brand);


    padding-left: 24px;


}


main {

    max-width: 1000px;

    margin: auto;

    padding: 10px 10px;

}

.hero {


    text-align: center;

    padding: 10px;


}

.hero h1 {


    font-size: 60px;


}

.hero p {


    color: var(--muted);

    margin-top: 10px;

    font-size: 18px;


}

.section-title {


    background: var(--brand);

    color: #000;

    font-weight: 800;

    font-size: 24px;

    padding: 12px 10px;

    border-radius: 14px;

    margin: 40px 0 25px;


}

.product-grid {


    display: flex;

    gap: 25px;

    flex-wrap: wrap;


}


.product-card {


    width: 130px;

    text-align: center;

    text-decoration: none;

    color: white;

    transition: .25s;


}

.product-card img {


    width: 90px;

    border-radius: 22px;


}


.product-card span {


    display: block;

    margin-top: 12px;


}


.product-card:hover {


    transform: translateY(-6px);


}

.product-card:hover span {


    color: var(--brand);


}


.coming-card {


    background: var(--card);

    padding: 30px;

    border-radius: 20px;

    color: var(--muted);


}

footer {


    text-align: center;

    padding: 40px;

    color: var(--muted);


}

@media(max-width:700px) {


    .logo {

        height: 100px;

    }


    nav {

        gap: 18px;

    }


    .hero h1 {

        font-size: 42px;

    }
}

.app-detail {

    text-align: center;

    padding: 50px 20px;

}


.scanner-icon {

    width: 160px;

    height: 160px;

    border-radius: 32px;

}


.app-detail h1 {

    font-size: 48px;

    margin-top: 25px;

}



.version {

    color: #9CA3AF;

    margin-top: 10px;

}

.description {

    max-width: 600px;

    margin: 25px auto;

    line-height: 1.7;

    color: #9CA3AF;

}

.download-btn {

    display: inline-block;

    margin-top: 20px;

    padding: 15px 30px;

    background: #FFC107;

    color: black;

    font-weight: 700;

    border-radius: 14px;

    text-decoration: none;

    transition: .25s;

}

.download-btn:hover {

    transform: translateY(-3px);

    box-shadow:
        0 0 20px rgba(255, 193, 7, .4);

}

.title-bar {

    background: #08E0FC;

    color: black;

    padding: 12px 20px;

    border-radius: 14px;

    margin: 40px 0 20px;

}

.feature-box {

    background: #171B22;

    padding: 25px;

    border-radius: 20px;

    line-height: 2;

}

.screenshot-wrapper {

    display: flex;

    align-items: center;

    position: relative;

}


.screenshots {

    display: flex;

    gap: 20px;

    overflow: hidden;

    scroll-behavior: smooth;

    padding: 20px 10px;

}


.screenshots img {

    width: 260px;

    flex-shrink: 0;

    border-radius: 20px;

    transition: .25s;

    box-shadow: 0 5px 20px rgba(0, 0, 0, .15);

}


.screenshots img:hover {

    transform: scale(1.03);

}



.slide-btn {

    width: 45px;

    height: 45px;

    border: none;

    border-radius: 50%;

    background: #08E0FC;

    color: white;

    font-size: 20px;

    cursor: pointer;

    z-index: 2;

    transition: .2s;

}


.slide-btn:hover {

    transform: scale(1.15);

    background: #111;

}



.slide-btn.left {

    margin-right: 10px;

}


.slide-btn.right {

    margin-left: 10px;

}

.download-group {

    display: flex;

    justify-content: center;

    gap: 15px;

    flex-wrap: wrap;

    margin-top: 20px;

}

.pc-btn {

    background: #08E0FC;

}


.pc-btn:hover {

    box-shadow:
        0 0 20px rgba(8, 224, 252, .45);

}

.privacy-page {

    max-width: 800px;

    margin: auto;

    line-height: 1.8;

}

.privacy-page h1 {

    font-size: 48px;

    margin-bottom: 10px;

}



.privacy-page h2 {

    margin-top: 35px;

    font-size: 26px;

    color: #08E0FC;

}

.update {

    color: #9CA3AF;

    margin-bottom: 30px;

}

.privacy-page {

    max-width: 800px;

    margin: auto;

    line-height: 1.8;

}

.privacy-tabs {

    display: flex;

    gap: 12px;

    margin: 30px 0;

    flex-wrap: wrap;

}

.tab-btn {


    background: #171B22;

    color: white;

    border: none;

    padding: 12px 20px;

    border-radius: 12px;

    cursor: pointer;

    transition: .25s;


}

.tab-btn:hover {


    color: #08E0FC;


}

.tab-btn.active {


    background: #08E0FC;

    color: black;

    font-weight: 700;


}

.tab-content {


    display: none;


    background: #171B22;

    padding: 30px;

    border-radius: 20px;


}

.tab-content.active {


    display: block;


}

.tab-content h2 {


    color: #08E0FC;

    margin-bottom: 15px;

}

.about-page {

    max-width: 800px;

    margin: auto;

    line-height: 1.8;

}

.about-page h1 {

    font-size: 48px;

    margin-bottom: 30px;

}

.about-page h2 {

    color: #08E0FC;

    margin-top: 40px;

}

.about-page p {

    margin-top: 15px;

    color: #D1D5DB;

}

.email-link {

    color: #08E0FC;

    text-decoration: none;

}

.email-link:hover {

    text-decoration: underline;

}