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

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --dark-bg: #0a0e27;
    --card-bg: rgba(255, 255, 255, 0.95);
    --text-primary: #1a1a2e;
    --text-secondary: #4a5568;
    --accent-color: #667eea;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Helvetica', 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #2a2f4a 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated background gradient */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

/* Header Styles */
header {
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

header.scrolled {
    background: rgba(10, 14, 39, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: color 0.3s ease;
}

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

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

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

/* Main Content */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 6rem 2rem 2rem;
    position: relative;
    z-index: 1;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 6rem 0 4rem;
    color: white;
    position: relative;
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
}

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

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    line-height: 1.1;
    background: linear-gradient(135deg, #fff 0%, #e0e7ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease 0.2s forwards;
    opacity: 0;
}

.subtitle {
    font-size: 1.5rem;
    opacity: 0;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.8);
    animation: fadeInUp 1s ease 0.4s forwards;
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    padding: 4rem 0;
}

.services h2 {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: white;
    font-weight: 700;
    opacity: 0;
    animation: fadeInUp 1s ease 0.6s forwards;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

/* Service Cards */
.service-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.service-card:nth-child(1) { animation-delay: 0.8s; }
.service-card:nth-child(2) { animation-delay: 1s; }
.service-card:nth-child(3) { animation-delay: 1.2s; }

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 0;
}

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

.service-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
    border-color: rgba(102, 126, 234, 0.3);
}

.service-card h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.6rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    position: relative;
    z-index: 1;
    margin-bottom: 1.5rem;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.9rem 2rem;
    background: var(--primary-gradient);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

/* Page Headers */
.page-header {
    text-align: center;
    padding: 2rem 0 3rem;
    color: white;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, #e0e7ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Content Sections */
.services-detail,
.about-content,
.contact-content {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.service-detail-card {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.service-detail-card:last-child {
    border-bottom: none;
}

.service-detail-card h2 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.service-detail-card ul {
    margin-left: 2rem;
    margin-top: 1rem;
}

.service-detail-card li {
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

/* Contact Info */
.contact-info {
    margin-top: 2rem;
    font-size: 1.1rem;
}

.contact-info a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-info a:hover {
    color: #764ba2;
    text-decoration: underline;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem 2rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 6rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

    nav {
        padding: 1rem;
    }

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

    .service-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .service-card {
        padding: 2rem;
    }

    main {
        padding: 5rem 1rem 2rem;
    }

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

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

    .subtitle {
        font-size: 1rem;
    }

    .logo {
        font-size: 1.4rem;
    }

    .nav-links {
        gap: 1rem;
    }
}

/* Utility Classes */
.fade-in {
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
}

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