* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(-45deg, #0a0f1c, #111827, #0f172a, #050b14);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    color: #ffffff;
    overflow-x: hidden;
}
@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
a {
    text-decoration: none;
    color: inherit;
}
.hero-scroll-container {
    height: 300vh;
    width: 100%;
}
.logo {
    font-weight: 900;
    letter-spacing: -2px;
    display: flex;
    white-space: nowrap;
}
.demo-text { color: #FFCC00; }
.abcigo-text { color: #FF0000; }
#floating-logo {
    position: fixed;
    top: 50vh;
    left: 50vw;
    font-size: clamp(3rem, 12vw, 8rem);
    transform: translate(-50%, -50%);
    z-index: 9999;
    pointer-events: none;
    will-change: transform, top, left, margin-top;
    transition: margin-top 0.3s ease;
}
body.has-preview-bar #floating-logo {
    margin-top: 54px !important;
}
.main-content {
    position: relative;
    z-index: 10;
}
.cards-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    padding: 50px 5% 150px 5%;
}
.stack-card {
    position: sticky;
    top: 12vh;
    width: 100%;
    min-height: 75vh;
    border-radius: 40px;
    margin-bottom: 8vh;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 -15px 40px rgba(0,0,0,0.4);
    transform-origin: top center;
    overflow: hidden;
    will-change: transform, opacity;
}
.bg-red { background-color: #FF3B30; }
.bg-yellow { background-color: #FFCC00; }
.bg-blue { background-color: #007AFF; }
.bg-orange { background-color: #FF9500; }
.bg-purple { background-color: #AF52DE; }
.card-content {
    text-align: center;
    padding: 40px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.card-content img {
    width: 90%;
    height: 35vh;
    object-fit: cover;
    border-radius: 20px;
    margin-bottom: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}
.card-content h2 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    margin-bottom: 8px;
    color: #ffffff;
}
.card-content p {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}
.demo-link {
    display: inline-block;
    padding: 16px 48px;
    background: #ffffff;
    color: #111111;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 700;
    transition: transform 0.3s;
}
.demo-link:hover { transform: scale(1.05); }
.dark-btn {
    background: #111111;
    color: #ffffff !important;
}