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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #0b1320;
    background: #ffffff;
    line-height: 1.6;
}

/* LAYOUT */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* HEADER */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #fff;
    border-bottom: 1px solid #eee;
    transition: all .25s ease;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo img {
    height: 40px;
    transition: height .25s ease;
}

.nav a {
    margin-left: 24px;
    text-decoration: none;
    color: #0b1320;
    font-size: 15px;
}

/* HEADER – SCROLL EFFECT */
.site-header.shrink {
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.site-header.shrink .header-inner {
    height: 56px;
}

.site-header.shrink .logo img {
    height: 32px;
}

/* MAIN */
.site-main {
    padding: 64px 0;
}

/* INTRO */
.intro {
    max-width: 600px;
    margin: 24px 0 64px;
}

.intro h1 {
    font-size: 36px;
    margin-bottom: 12px;
}

.intro p {
    color: #555;
    font-size: 17px;
}

/* PRODUCTS */
.products {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.product-card {
    position: relative;
    padding: 32px;
    border-radius: 16px;
    background: #fff;
    text-decoration: none;
    color: inherit;
    transition: transform .25s ease;
    z-index: 0;
}

/* GRADIENT BORDER */
.product-card::before {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: 16px;
    background: linear-gradient(
        135deg,
        rgba(11,19,32,0.35),
        rgba(11,19,32,0.05),
        rgba(11,19,32,0.35)
    );
    z-index: -1;
    opacity: 0;
    transition: opacity .25s ease;
}

.product-card:hover {
    transform: translateY(-4px);
}

.product-card:hover::before {
    opacity: 1;
}

.product-card h3 {
    margin-bottom: 8px;
    font-size: 20px;
}

.product-card p {
    color: #555;
}

.product-card-icon {
    font-size: 26px;
    margin-bottom: 12px;
}
.product-card-icon svg {
    width: 28px;
    height: 28px;
    color: #0b1320;
    margin-bottom: 12px;
}

/* PRODUCT DETAIL */
.product-intro {
    margin-bottom: 56px;
}

.product-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: #0b1320;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 16px;
}

/* SCREENSHOTS */
.screenshots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-bottom: 64px;
}

.shot {
    height: 180px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    color: #555;
}

.placeholder {
    background: #f4f5f7;
    border: 1px dashed #ddd;
}

/* FEATURES */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.feature {
    padding: 28px;
    border-radius: 16px;
    border: 1px solid #eee;
    background: #fff;
}

.feature h3 {
    margin-bottom: 10px;
    font-size: 18px;
}

.feature p {
    color: #555;
    font-size: 15px;
}

/* FOOTER */
.site-footer {
    border-top: 1px solid #eee;
    margin-top: 80px;
    padding: 32px 0;
    font-size: 14px;
    color: #777;
}

/* MOBILE */
@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        height: auto;
        padding: 16px 0;
        gap: 12px;
    }

    .nav a {
        margin: 0 12px;
    }

    .intro h1 {
        font-size: 28px;
    }
}
.product-card:hover .product-card-icon svg {
    transform: translateY(-2px);
}