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

body {
    font-family: sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 72px;
    background-color: #141414;
    display: flex;
    align-items: center;
    z-index: 1000;
}

/* Header logo */
.header-logo {
    height: 36px;
    margin-left: 24px;
    transition: filter 0.2s ease;
    cursor: pointer;
}

.header-logo:hover {
    filter: brightness(0.7);
}

/* Gradient banner outer (spacer) */
.banner-outer {
    height: 100vh;
}

/* Gradient banner */
.gradient-banner {
    /* Default: fullscreen fixed banner (JS overrides these dynamically) */
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    height: calc(100vh - 72px);
    background: linear-gradient(to right, #FF6464, #CBFF64, #FF6464);
    background-size: 200% 100%;
    animation: gradientFlow 24s linear infinite;
    z-index: 100;
    font-weight: bold;
    overflow: hidden;
}

@keyframes gradientFlow {
    from {
        background-position: 0% 50%;
    }

    to {
        background-position: -200% 50%;
    }
}

/* Banner content */
.banner-content {
    position: absolute;
    top: 48px;
    left: 64px;
    z-index: 101;
}

/* Banner logo */
.banner-logo {
    height: 128px;
    display: block;
}

/* Banner text */
.banner-text {
    margin-top: 48px;
    font-size: 48px;
    color: #fff;
    line-height: 1.5;
    text-align: left;
}

/* What is WirlssUzr section */
.what-section {
    padding: 80px 64px;
}

.what-title {
    text-align: center;
    font-size: 96px;
    font-weight: bold;
    margin-bottom: 64px;
    color: #141414;
}

.what-items {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

/* Main content */
.main-content {
    padding: 24px;
    flex: 1;
}

/* Footer */
.site-footer {
    height: 256px;
    background-color: #141414;
    width: 100%;
}