@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700&family=Roboto:wght@300;400&display=swap');

:root {
    --primary-font: 'Roboto', sans-serif;
    --heading-font: 'Orbitron', sans-serif;
    --background-color: #0a0a14;
    --text-color: #e0e0e0;
    --glow-color: #00bfff;
    --glow-color-secondary: #8a2be2;
    --card-background: rgba(20, 20, 40, 0.6);
}

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

body {
    font-family: var(--primary-font);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.7;
    overflow-x: hidden;
}

#background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(45deg, var(--background-color) 0%, #100f28 50%, var(--background-color) 100%);
    animation: gradient-flow 20s ease infinite;
}

#background-animation::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 20% 20%, var(--glow-color-secondary), transparent 25%),
        radial-gradient(circle at 80% 70%, var(--glow-color), transparent 25%);
    opacity: 0.1;
    animation: pulse 15s infinite alternate;
}

@keyframes gradient-flow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes pulse {
    from { transform: scale(1); opacity: 0.1; }
    to { transform: scale(1.2); opacity: 0.2; }
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

header {
    text-align: center;
    padding: 2rem 0;
    animation: fadeInDown 1s ease-out;
}

.main-title {
    font-family: var(--heading-font);
    font-size: 2.8rem;
    letter-spacing: 4px;
    color: #fff;
    text-shadow: 0 0 10px var(--glow-color), 0 0 20px var(--glow-color);
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1rem;
    color: var(--text-color);
    opacity: 0.8;
    letter-spacing: 2px;
}

main {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

section {
    animation: fadeInUp 1s ease-out forwards;
    opacity: 0;
    animation-delay: 0.5s;
}

.hero {
    text-align: center;
}

.tagline {
    font-family: var(--heading-font);
    font-size: 1.8rem;
    color: #fff;
    margin-bottom: 1rem;
    text-shadow: 0 0 5px var(--glow-color);
}

.intro-text {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.9;
}

.core-concept .concept-card {
    background: var(--card-background);
    border: 1px solid rgba(0, 191, 255, 0.2);
    border-radius: 10px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 0 30px rgba(0, 191, 255, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.core-concept .concept-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 40px rgba(0, 191, 255, 0.2);
}

.concept-card h3 {
    font-family: var(--heading-font);
    color: var(--glow-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.call-to-action {
    text-align: center;
    background: var(--card-background);
    padding: 3rem 2rem;
    border-radius: 10px;
    border-top: 1px solid rgba(0, 191, 255, 0.3);
}

.call-to-action h3 {
    font-family: var(--heading-font);
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #fff;
}

.cta-button {
    display: inline-block;
    font-family: var(--heading-font);
    background-color: transparent;
    color: var(--glow-color);
    border: 2px solid var(--glow-color);
    padding: 0.8rem 2rem;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 1.5rem;
    transition: background-color 0.3s, color 0.3s, box-shadow 0.3s;
    font-weight: 700;
    letter-spacing: 1px;
}

.cta-button:hover {
    background-color: var(--glow-color);
    color: var(--background-color);
    box-shadow: 0 0 20px var(--glow-color);
}

footer {
    text-align: center;
    padding: 4rem 0 2rem;
    opacity: 0.6;
    font-size: 0.9rem;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
    .main-title {
        font-size: 2rem;
    }
    .tagline {
        font-size: 1.5rem;
    }
    .content-wrapper {
        padding: 1rem;
    }
}