* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    color: white;
    background: #0f172a;
}

/* HERO SECTION */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: linear-gradient(-45deg, #1e3a8a, #0f172a, #0ea5e9, #111827);
    background-size: 400% 400%;
    animation: gradient 12s ease infinite;
}

.overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    padding: 20px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 10px;
}

.tagline {
    margin-bottom: 30px;
    color: #ccc;
}

/* COUNTDOWN */
.countdown {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.time-box {
    background: rgba(255,255,255,0.1);
    padding: 15px 20px;
    border-radius: 10px;
}

.time-box span {
    font-size: 1.8rem;
    display: block;
}

.time-box small {
    font-size: 0.8rem;
    color: #ddd;
}

/* FORM */
form {
    display: flex;
    justify-content: center;
}

input {
    padding: 12px;
    border: none;
    width: 60%;
    border-radius: 6px 0 0 6px;
}

button {
    padding: 12px 20px;
    border: none;
    background: #0ea5e9;
    color: white;
    cursor: pointer;
    border-radius: 0 6px 6px 0;
    transition: 0.3s;
}

button:hover {
    background: #0284c7;
}

.message {
    margin-top: 10px;
    min-height: 20px;
}

/* FEATURES SECTION */
.features {
    padding: 80px 20px;
    text-align: center;
    background: #111827;
}

.features h2 {
    margin-bottom: 40px;
    font-size: 2rem;
}

.feature-grid {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.feature {
    max-width: 250px;
}

/* FOOTER */
footer {
    padding: 20px;
    text-align: center;
    background: #0f172a;
    color: #aaa;
}

/* ANIMATION */
@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@media (max-width: 768px) {
    .countdown {
        flex-wrap: wrap;
    }

    form {
        flex-direction: column;
    }

    input, button {
        width: 100%;
        border-radius: 6px;
        margin-bottom: 10px;
    }
}