/* Variables */
:root {
    --bg-dark: #fafafa;
    --bg-card: rgba(255, 255, 255, 0.8);
    --border-glass: rgba(139, 92, 246, 0.2);
    --text-main: #1a1a1a;
    --text-muted: #4b5563;
    
    --brand-primary: #8b5cf6;
    --brand-secondary: #6d28d9;
    --brand-accent: #c084fc;
    
    --glow-primary: rgba(139, 92, 246, 0.3);
    --glow-secondary: rgba(109, 40, 217, 0.2);
    
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-main);
    background: linear-gradient(135deg, #f8f9fa 0%, #ebe5fc 100%);
    min-height: 100vh;
}

body {
    overflow-x: hidden;
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

a {
    text-decoration: none;
    color: inherit;
}

.text-gradient {
    background: linear-gradient(135deg, var(--brand-accent), var(--brand-primary), var(--brand-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 5%;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    color: #fff;
    box-shadow: 0 4px 14px 0 var(--glow-primary);
    border: 1px solid transparent;
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.6);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(139, 92, 246, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid var(--brand-primary);
    color: var(--brand-secondary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* Glassmorphism */
.glass {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    background: #d1d5db; /* Solid grey */
    border-bottom: 1px solid var(--border-glass);
    transition: var(--transition);
}

.navbar.scrolled {
    background: #d1d5db; /* Solid and frozen grey on scroll */
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

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

.logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

.logo img {
    height: 144px;
    width: auto;
    object-fit: contain;
    mix-blend-mode: multiply;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a:not(.btn) {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
}

.nav-links a:not(.btn):hover {
    color: var(--text-main);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.hamburger span {
    width: 30px;
    height: 2px;
    background: var(--text-main);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 5rem;
    overflow: hidden;
}

.hero-bg-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    opacity: 0.5;
}

.glow-1 {
    top: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: var(--glow-primary);
}

.glow-2 {
    bottom: 10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: var(--glow-secondary);
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 900px;
    z-index: 1;
}

.badge {
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid var(--brand-primary);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--brand-secondary);
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--text-muted);
    max-width: 650px;
    margin-bottom: 3rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.5;
    animation: bounce 2s infinite;
}

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid var(--text-main);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--text-main);
    border-radius: 2px;
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(15px); opacity: 0; }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-10px) translateX(-50%); }
    60% { transform: translateY(-5px) translateX(-50%); }
}

/* Services */
.services {
    padding: 8rem 0;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    padding: 3rem 2rem;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    background: #ffffff;
    border-color: rgba(139, 92, 246, 0.4);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.15);
}

.icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--brand-accent);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-muted);
}

/* About Section */
.about {
    padding: 8rem 0;
    border-top: 1px solid var(--border-glass);
    position: relative;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-content h2 {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    margin-bottom: 2rem;
}

.about-text {
    margin-bottom: 3rem;
}

.about-text p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.about-text p:last-child {
    margin-bottom: 0;
}

.stats {
    display: flex;
    gap: 3rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--brand-primary);
    background: linear-gradient(135deg, var(--brand-accent), var(--brand-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    color: var(--text-muted);
    font-weight: 500;
}

/* Abstract visual representation */
.about-visual {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-image {
    width: 100%;
    max-width: 600px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    object-fit: cover;
}

/* CTA */
.cta {
    padding: 8rem 0;
}

.cta-container {
    text-align: center;
    padding: 5rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.cta-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--glow-primary) 0%, transparent 60%);
    opacity: 0.1;
    z-index: -1;
}

.cta-container h2 {
    font-size: clamp(2rem, 3.5vw, 3rem);
    margin-bottom: 1rem;
}

.cta-container p {
    color: var(--text-muted);
    font-size: 1.2rem;
    margin-bottom: 3rem;
}

/* Footer */
footer {
    border-top: 1px solid var(--border-glass);
    padding: 4rem 0 2rem;
    background: #fdfdfd;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 4rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-brand p {
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-muted);
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid var(--border-glass);
    padding-top: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Utilities / Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Delays */
*[style*="--delay"] {
    transition-delay: var(--delay);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #d1d5db;
        border-bottom: 1px solid var(--border-glass);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        opacity: 0;
        pointer-events: none;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s;
    }
    
    .nav-links.active {
        opacity: 1;
        pointer-events: auto;
        visibility: visible;
    }
    
    .hamburger {
        display: flex;
        z-index: 1001;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .about-visual {
        margin-top: 2rem;
        height: 300px;
    }
}