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

body {
    background: radial-gradient(circle at 20% 20%, #0f2027, #0d1117 40%);
    color: white;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Animated background glow */
body::before {
    content: "";
    position: fixed;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0,255,174,0.15), transparent 60%);
    top: -200px;
    left: -200px;
    z-index: -1;
    animation: moveGlow 12s infinite alternate ease-in-out;
}

@keyframes moveGlow {
    from { transform: translate(0,0); }
    to { transform: translate(200px, 150px); }
}

/* HEADER */
.main-header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(0, 0, 0, 0.4);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: 0.3s ease;
}

.main-header.scrolled {
    background: rgba(0, 0, 0, 0.75);
    box-shadow: 0 0 15px rgba(0,255,174,0.25);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.brand {
    font-size: 1.6rem;
    font-weight: bold;
    color: #00ffae;
    text-shadow: 0 0 10px #00ffae, 0 0 20px #00ffae;
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 25px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
}

.nav-links a:hover {
    color: #00ffae;
}

.nav-btn {
    background: #00ffae;
    color: black !important;
    padding: 8px 18px;
    border-radius: 20px;
}

/* HERO */
.hero {
    height: 100vh;
    background: url("hero-bg.jpg") center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 0 20px;
}

.overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.65);
    top: 0;
    left: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    animation: floatHero 4s ease-in-out infinite;
}

@keyframes floatHero {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Fade-in hero text */
.hero h1, .hero p, .hero .btn {
    animation: fadeUp 1.2s ease forwards;
    opacity: 0;
}

.hero p { animation-delay: 0.3s; }
.hero .btn { animation-delay: 0.6s; }

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

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 15px;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 25px;
    color: #ddd;
}

/* BUTTON */
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(0,255,174,0.7); }
    70% { box-shadow: 0 0 0 15px rgba(0,255,174,0); }
    100% { box-shadow: 0 0 0 0 rgba(0,255,174,0); }
}

.btn {
    display: inline-block;
    background: #00ffae;
    color: black;
    padding: 14px 34px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
    box-shadow: 0 0 15px rgba(0,255,174,0.4);
    animation: pulse 2.5s infinite;
}

.btn:hover {
    background: #00c98a;
    box-shadow: 0 0 25px rgba(0,255,174,0.8);
    transform: translateY(-3px);
}

/* SECTIONS */
.section {
    padding: 100px 10% 80px;
    text-align: center;
    position: relative;
}

.section::after {
    content: "";
    width: 80px;
    height: 3px;
    background: #00ffae;
    display: block;
    margin: 40px auto 0;
    border-radius: 5px;
    box-shadow: 0 0 10px #00ffae;
}

.section.dark {
    background: #111827;
}

.section h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #00ffae;
}

/* FEATURES */
.features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
}

.card {
    background: #1f2937;
    padding: 25px;
    border-radius: 12px;
    width: 280px;
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 0 20px rgba(0,255,174,0.3);
}

.card h3 {
    transition: transform 0.3s ease;
}

.card:hover h3 {
    transform: scale(1.1);
}

/* SOCIAL ICONS */
.socials {
    margin-top: 20px;
}

.social-icon {
    font-size: 1.8rem;
    margin: 0 12px;
    color: #00ffae;
    transition: 0.3s ease;
}

.social-icon:hover {
    color: white;
    transform: scale(1.2);
    text-shadow: 0 0 12px #00ffae;
}

/* BUY STEPS */
.steps {
    margin: 30px 0;
}

.step {
    margin: 10px 0;
    font-size: 1.1rem;
}

/* FOOTER */
footer {
    padding: 25px;
    text-align: center;
    background: #0a0f14;
    font-size: 0.9rem;
    color: #777;
}