/* Reset & Base Styles */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --accent: #06b6d4;
    --bg-dark: #0f0f1a;
    --bg-card: #1a1a2e;
    --bg-card-hover: #252542;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --border: rgba(255, 255, 255, 0.1);
    --gradient-1: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
    --gradient-2: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Gradient Background */
.gradient-bg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(124, 58, 237, 0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(15, 15, 26, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.25rem;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.05rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    padding-top: 100px;
}

.hero-content {
    max-width: 600px;
}

.badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 100px;
    color: var(--primary-light);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-orb {
    width: 300px;
    height: 300px;
    background: var(--gradient-1);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.4; }
    50% { transform: scale(1.1); opacity: 0.5; }
}

.floating-card {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow);
    animation: float 6s ease-in-out infinite;
}

.floating-card .card-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-card .card-icon svg {
    width: 20px;
    height: 20px;
    color: white;
}

.floating-card span {
    font-weight: 500;
    font-size: 0.9rem;
    white-space: nowrap;
}

.card-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 5%;
    animation-delay: -2s;
}

.card-3 {
    bottom: 15%;
    left: 20%;
    animation-delay: -4s;
}

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

/* Features Section */
.features {
    padding: 120px 24px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.3s;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary-light);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* About Section */
.about {
    padding: 120px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.about-content > p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 32px;
}

.about-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 1rem;
}

.check-icon {
    width: 24px;
    height: 24px;
    background: rgba(34, 197, 94, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.check-icon svg {
    width: 14px;
    height: 14px;
    color: #22c55e;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.stat {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Contact Section */
.contact {
    padding: 120px 24px;
}

.contact-card {
    background: var(--gradient-2);
    border-radius: 28px;
    padding: 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.contact-card h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
}

.contact-card p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 500px;
    margin: 0 auto 32px;
    position: relative;
}

.contact-card .btn-primary {
    background: white;
    color: var(--primary-dark);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    position: relative;
}

.contact-card .btn-primary:hover {
    background: #f0f0f5;
}

/* Footer */
footer {
    border-top: 1px solid var(--border);
    padding: 60px 0 40px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 12px;
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 120px;
        min-height: auto;
        padding-bottom: 80px;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-subtitle {
        max-width: 100%;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        height: 350px;
    }

    .about {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .about-stats {
        max-width: 500px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero-visual {
        height: 280px;
    }

    .floating-card {
        padding: 12px 16px;
    }

    .floating-card span {
        font-size: 0.8rem;
    }

    .card-1 { left: 5%; }
    .card-2 { right: 0; }
    .card-3 { left: 10%; }

    .section-header h2,
    .about-content h2,
    .contact-card h2 {
        font-size: 2rem;
    }

    .contact-card {
        padding: 50px 30px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 32px;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: 20px;
    }
}