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

html, body {
    height: 100%;
    font-family: 'Poppins', sans-serif;
}

body {
    background: url('images/backposter.jpg') no-repeat center center/cover;
}

.overlay {
    background-color: rgba(0, 0, 0, 0.5); /* dark overlay for readability */
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
    flex-direction: column;
    padding: 0 20px; /* responsive padding */
}

.content {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1.5s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Main title – Ocean Gradient */
h1 {
    font-size: 4.5em;
    font-weight: 800;
    margin-bottom: 20px;

    background: linear-gradient(90deg, #00c6ff, #0072ff, #00d4ff, #0099ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;

    text-shadow: 2px 2px 10px rgba(0,0,0,0.7);
}

/* Tagline text */
p.tagline {
    font-size: 1.8em;
    font-weight: 500;
    color: #e0f7ff; /* soft light blue */
    margin-bottom: 15px;
    text-shadow: 1px 1px 6px rgba(0,0,0,0.5);

    opacity: 0;
    animation: fadeInUp 2s forwards;
    animation-delay: 0.5s;
}

/* Features line */
p.features {
    font-size: 1.3em;
    font-weight: 400;
    letter-spacing: 2px;
    color: #00bfff; /* ocean accent */
    text-shadow: 1px 1px 6px rgba(0,0,0,0.5);

    opacity: 0;
    animation: fadeInUp 2s forwards;
    animation-delay: 1s;
}