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

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #1a0b2e;
    --bg-card: rgba(26, 11, 46, 0.6);
    --cyan: #00f0ff;
    --purple: #a855f7;
    --pink: #ec4899;
    --blue: #3b82f6;
    --text-primary: #ffffff;
    --text-secondary: #b4b4b8;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(
        135deg,
        #00f0ff 0%,
        #a855f7 50%,
        #ec4899 100%
    );
    --gradient-3: linear-gradient(90deg, #00f0ff, #a855f7, #ec4899);
}

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap");

body {
    font-family:
        "Inter",
        -apple-system,
        BlinkMacSystemFont,
        sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(
            circle at 20% 50%,
            rgba(168, 85, 247, 0.15) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 80% 80%,
            rgba(0, 240, 255, 0.15) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 40% 20%,
            rgba(236, 72, 153, 0.15) 0%,
            transparent 50%
        );
    pointer-events: none;
    z-index: 0;
}

/* Animations */
@keyframes float {
    0%,
    100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes glow {
    0%,
    100% {
        box-shadow:
            0 0 20px rgba(0, 240, 255, 0.5),
            0 0 40px rgba(168, 85, 247, 0.3);
    }
    50% {
        box-shadow:
            0 0 30px rgba(0, 240, 255, 0.8),
            0 0 60px rgba(168, 85, 247, 0.5);
    }
}

@keyframes pulse {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

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

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

/* Particles Background */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* Header */
header {
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 240, 255, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 3rem;
    position: relative;
    z-index: 10;
}

.logo {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-2);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    animation: gradient-shift 3s ease infinite;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo::before {
    content: "🧠";
    font-size: 1.8rem;
    filter: drop-shadow(0 0 10px rgba(0, 240, 255, 0.6));
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    position: relative;
    z-index: 10;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    font-size: 0.95rem;
}

.nav-links a::after {
    content: "";
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-2);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--cyan);
    text-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
}

.nav-links a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px 2rem 80px;
    position: relative;
    z-index: 2;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(
        circle,
        rgba(168, 85, 247, 0.2) 0%,
        transparent 70%
    );
    animation: pulse 4s ease-in-out infinite;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 1200px;
}

.hero h1 {
    font-family: "Space Grotesk", sans-serif;
    font-size: 5rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    line-height: 1.1;
    background: var(--gradient-2);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease infinite;
}

.hero .ai-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--cyan);
    border-radius: 50px;
    color: var(--cyan);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    animation: glow 2s ease-in-out infinite;
}

.hero p {
    font-size: 1.4rem;
    margin-bottom: 3rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.cta-button {
    display: inline-block;
    background: var(--gradient-2);
    background-size: 200% auto;
    color: var(--bg-primary);
    padding: 1.2rem 3rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.3);
}

.cta-button::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: left 0.5s;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow:
        0 0 50px rgba(0, 240, 255, 0.6),
        0 10px 30px rgba(0, 0, 0, 0.3);
    animation: glow 1s ease-in-out infinite;
}

/* Features Section */
.features {
    padding: 120px 3rem;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.features h2 {
    text-align: center;
    font-family: "Space Grotesk", sans-serif;
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 800;
    background: var(--gradient-2);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features > p {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.feature-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 3rem 2.5rem;
    border-radius: 25px;
    border: 1px solid rgba(0, 240, 255, 0.1);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-2);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-card:hover::before {
    opacity: 0.05;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--cyan);
    box-shadow:
        0 20px 60px rgba(0, 240, 255, 0.2),
        0 0 40px rgba(168, 85, 247, 0.1);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
    filter: drop-shadow(0 0 20px rgba(0, 240, 255, 0.6));
    position: relative;
    z-index: 1;
}

.feature-card h3 {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1.05rem;
    position: relative;
    z-index: 1;
}

/* AI Stats Section */
.ai-stats {
    padding: 100px 3rem;
    text-align: center;
    background: linear-gradient(
        180deg,
        transparent 0%,
        rgba(26, 11, 46, 0.4) 50%,
        transparent 100%
    );
    position: relative;
    z-index: 2;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 3rem auto 0;
}

.stat-card {
    position: relative;
}

.stat-number {
    font-family: "Space Grotesk", sans-serif;
    font-size: 4rem;
    font-weight: 800;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Content Section */
.content-section {
    max-width: 1000px;
    margin: 120px auto 80px;
    padding: 3rem;
    position: relative;
    z-index: 2;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-radius: 30px;
    border: 1px solid rgba(0, 240, 255, 0.1);
}

.content-section h1 {
    font-family: "Space Grotesk", sans-serif;
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

.content-section h2 {
    font-family: "Space Grotesk", sans-serif;
    font-size: 2rem;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    color: var(--cyan);
    font-weight: 700;
}

.content-section h3 {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--purple);
    font-weight: 600;
}

.content-section h4 {
    font-size: 1.2rem;
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
    font-weight: 600;
}

.content-section p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.9;
    font-size: 1.05rem;
}

.content-section ul,
.content-section ol {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.content-section li {
    margin-bottom: 0.8rem;
    line-height: 1.7;
}

.content-section a {
    color: var(--cyan);
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.content-section a:hover {
    border-bottom-color: var(--cyan);
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

.last-updated {
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 2rem;
    opacity: 0.7;
}

/* Contact Form */
.contact-section {
    max-width: 800px;
    margin: 120px auto 80px;
    padding: 3rem;
    position: relative;
    z-index: 2;
}

.contact-section h1 {
    font-family: "Space Grotesk", sans-serif;
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-align: center;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

.contact-section > p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.contact-form {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    padding: 3rem;
    border-radius: 25px;
    border: 1px solid rgba(0, 240, 255, 0.1);
}

.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.8rem;
    font-weight: 600;
    color: var(--cyan);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    background: rgba(10, 10, 15, 0.6);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 15px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--cyan);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
}

.form-group textarea {
    min-height: 180px;
    resize: vertical;
}

.submit-button {
    width: 100%;
    background: var(--gradient-2);
    background-size: 200% auto;
    color: var(--bg-primary);
    padding: 1.2rem;
    border: none;
    border-radius: 15px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(0, 240, 255, 0.4);
    animation: glow 1s ease-in-out infinite;
}

.contact-info {
    text-align: center;
    margin-top: 3rem;
    padding: 2.5rem;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-radius: 25px;
    border: 1px solid rgba(0, 240, 255, 0.1);
}

.contact-info h3 {
    margin-bottom: 1rem;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.8rem;
    color: var(--cyan);
    font-weight: 700;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    font-size: 1.05rem;
}

.contact-info a {
    color: var(--cyan);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.contact-info a:hover {
    text-shadow: 0 0 20px rgba(0, 240, 255, 0.6);
}

/* Footer */
footer {
    background: rgba(26, 11, 46, 0.6);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(0, 240, 255, 0.1);
    padding: 4rem 3rem 2rem;
    margin-top: 5rem;
    position: relative;
    z-index: 2;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-family: "Space Grotesk", sans-serif;
    margin-bottom: 1.5rem;
    color: var(--cyan);
    font-weight: 700;
    font-size: 1.3rem;
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-section a:hover {
    color: var(--cyan);
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 240, 255, 0.1);
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 3.5rem;
    }

    .features h2 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    nav {
        padding: 1rem 1.5rem;
    }

    .nav-links {
        gap: 1.5rem;
        font-size: 0.9rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .content-section {
        padding: 2rem 1.5rem;
        margin: 100px 1rem 50px;
    }

    .contact-form {
        padding: 2rem 1.5rem;
    }

    .content-section h1,
    .contact-section h1 {
        font-size: 2.5rem;
    }

    .features h2 {
        font-size: 2rem;
    }

    footer {
        padding: 3rem 1.5rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .logo {
        font-size: 1.2rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .features {
        padding: 80px 1.5rem;
    }
}