:root {
    --primary: #2563eb;
    --primary-glow: rgba(37, 99, 235, 0.5);
    --secondary: #0f172a;
    --accent: #06b6d4;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    --radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--secondary);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

.gradient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    bottom: -150px;
    right: -150px;
    animation-delay: -5s;
}

.blob-3 {
    width: 300px;
    height: 300px;
    background: #8b5cf6;
    top: 40%;
    left: 60%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -50px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.glass-nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 15px 0;
    transition: var(--transition);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-glow);
}

.glow-btn {
    animation: glow 3s infinite alternate;
}

@keyframes glow {
    from { box-shadow: 0 4px 15px var(--primary-glow); }
    to { box-shadow: 0 4px 30px rgba(6, 182, 212, 0.6); }
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--glass-border);
    margin-left: 15px;
}

.btn-secondary:hover {
    background: var(--glass-bg);
    border-color: var(--accent);
}

.hero {
    padding: 160px 0 100px;
    text-align: center;
    position: relative;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--accent);
    margin-bottom: 20px;
    backdrop-filter: blur(4px);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-intro {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-intro a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px dashed var(--accent);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 60px;
    flex-wrap: wrap;
}

.stat-card {
    padding: 20px 40px;
    text-align: center;
    border-radius: var(--radius);
}

.stat-card .counter {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent);
}

.section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--glass-shadow);
    transition: var(--transition);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card:hover {
    transform: perspective(1000px) rotateX(2deg) rotateY(-2deg) translateY(-10px);
    border-color: var(--accent);
}

.css-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
}

.feature-list {
    list-style: none;
    margin-top: 20px;
}

.feature-list li {
    padding: 8px 0;
    color: var(--text-muted);
    position: relative;
    padding-left: 20px;
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--accent));
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 40px;
}

.timeline-dot {
    position: absolute;
    left: 11px;
    top: 30px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent);
    border: 4px solid var(--secondary);
    box-shadow: 0 0 0 2px var(--accent);
}

.timeline-content:hover {
    transform: translateX(10px);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.css-placeholder {
    height: 300px;
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.placeholder-1 { background: linear-gradient(45deg, #1e293b, #334155); }
.placeholder-2 { background: linear-gradient(45deg, #0f172a, #1e3a8a); }
.placeholder-3 { background: linear-gradient(45deg, #1e1b4b, #312e81); }

.css-placeholder::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    border: 4px solid rgba(255,255,255,0.1);
    border-radius: 50%;
}

.overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    transform: translateY(100%);
    transition: var(--transition);
}

.css-placeholder:hover .overlay {
    transform: translateY(0);
}

.premium-article {
    padding: 50px;
    max-width: 900px;
    margin: 0 auto;
}

.premium-article h2 {
    font-size: 2rem;
    margin: 40px 0 20px;
    color: var(--accent);
}

.premium-article h2:first-child {
    margin-top: 0;
}

.premium-article h3 {
    font-size: 1.5rem;
    margin: 30px 0 15px;
    color: var(--text);
}

.premium-article p {
    margin-bottom: 20px;
    color: var(--text-muted);
    font-size: 1.05rem;
}

.premium-article a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

.callout-box {
    background: rgba(6, 182, 212, 0.1);
    border-left: 4px solid var(--accent);
    padding: 20px;
    border-radius: 0 8px 8px 0;
    margin: 30px 0;
}

.comparison-table {
    overflow-x: auto;
    margin: 30px 0;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th, .comparison-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

.comparison-table th {
    background: rgba(255,255,255,0.05);
    color: var(--accent);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 15px;
    cursor: pointer;
}

.faq-question {
    font-weight: 600;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--accent);
}

.faq-item.active .faq-question::after {
    content: '-';
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 20px;
    color: var(--text-muted);
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding-bottom: 20px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    text-align: center;
}

.stars {
    color: #fbbf24;
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.client-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
}

.client-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.client-info div {
    text-align: left;
}

.client-info span {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.info-item {
    margin-bottom: 20px;
}

.info-item strong {
    display: block;
    color: var(--accent);
    margin-bottom: 5px;
}

.info-item a, .info-item span {
    color: var(--text-muted);
    text-decoration: none;
}

.contact-form .form-group {
    margin-bottom: 20px;
}

.contact-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 12px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
}

.contact-form input:focus, .contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.footer {
    background: rgba(0,0,0,0.3);
    padding: 60px 0 30px;
    border-top: 1px solid var(--glass-border);
    margin-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    margin-bottom: 20px;
    color: var(--text);
}

.footer-col p, .footer-col a {
    color: var(--text-muted);
    text-decoration: none;
    line-height: 1.8;
    display: block;
    margin-bottom: 10px;
}

.footer-col a:hover {
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.animate-fade-in { animation: fadeIn 1s ease forwards; opacity: 0; }
.animate-fade-in-up { animation: fadeInUp 1s ease forwards; opacity: 0; }
.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

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

@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-toggle { display: block; }
    .hero h1 { font-size: 2.5rem; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .premium-article { padding: 30px 20px; }
}