:root {
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --text-primary: #111827;
    --text-secondary: #4B5563;
    --accent: #FF6B00;
    --accent-hover: #E65A00;
    --border-color: #E5E7EB;
    --font-sans: 'Inter', system-ui, sans-serif;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

.section {
    padding: 120px 0;
}

.bg-secondary {
    background-color: var(--bg-secondary);
}

.center {
    text-align: center;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-subtitle, .section-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    border: 2px solid transparent;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--accent);
    color: var(--accent);
}

.btn-outline:hover {
    background-color: var(--accent);
    color: #fff;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.125rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

/* Navbar */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(229, 231, 235, 0.5);
    z-index: 1000;
    transition: var(--transition);
}

nav.scrolled {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent);
}

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

.nav-links a {
    font-weight: 500;
    color: var(--text-secondary);
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: var(--text-primary);
}

/* Hero Section */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-container {
    max-width: 800px;
}

.hero-title {
    font-size: 4.5rem;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
}

/* About Section */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--bg-primary);
    padding: 40px 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.service-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05);
    transform: translateY(-5px);
}

.service-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    margin-bottom: 24px;
}

.service-title {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.service-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 40px;
}

.project-card {
    background: var(--bg-primary);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.project-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.project-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-info {
    padding: 30px;
}

.project-title {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.project-desc {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

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

.accordion {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.accordion-item {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-primary);
    border: none;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
}

.accordion-header:hover {
    background: var(--bg-secondary);
}

.accordion-header .icon {
    font-size: 1.5rem;
    font-weight: 400;
    transition: transform 0.3s ease;
}

.accordion-header.active .icon {
    transform: rotate(45deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background: var(--bg-primary);
}

.accordion-content p {
    padding: 0 24px 24px;
    color: var(--text-secondary);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-details {
    margin-top: 40px;
}

.detail-item {
    margin-bottom: 24px;
}

.detail-item h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    color: var(--accent);
    font-weight: 500;
}

.contact-form-wrapper {
    background: var(--bg-primary);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Footer */
footer {
    background-color: var(--text-primary);
    color: #fff;
    padding: 40px 0;
}

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

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
}

.footer-logo span {
    color: var(--accent);
}

.copyright {
    color: #9CA3AF;
    font-size: 0.875rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Platforms Marquee */
.platforms-banner {
    background-color: var(--text-primary);
    color: #fff;
    padding: 16px 0;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.marquee {
    display: flex;
    white-space: nowrap;
    overflow: hidden;
}

.marquee-content {
    display: flex;
    animation: scroll 20s linear infinite;
    gap: 40px;
    align-items: center;
}

.marquee-content span {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #9CA3AF;
}

.marquee-content .dot {
    color: var(--accent);
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-50% - 20px)); }
}

/* Industries Section */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 24px;
}
.industry-card {
    padding: 30px 20px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-align: center;
    transition: var(--transition);
}
.industry-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(255, 107, 0, 0.1);
}
.industry-card svg {
    margin-bottom: 16px;
}
.industry-card h4 {
    font-size: 1.1rem;
}

.pricing-card:not(.popular):hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05);
    transform: translateY(-5px);
}

/* Responsive */
@media (max-width: 992px) {
    .about-container, .contact-grid {
        grid-template-columns: 1fr;
    }
    .hero-title {
        font-size: 3.5rem;
    }
    .pricing-card.popular {
        transform: scale(1);
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-cta {
        display: none;
    }
    
    .hamburger {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .projects-grid, .industries-grid, .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    /* Mobile Menu Active State */
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--bg-primary);
        padding: 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    }
}