:root {
    --white: #ffffff;
    --black: #000000;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    --accent-blue: #3b82f6;
    --accent-red: #ef4444;
    --accent-yellow: #f59e0b;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    background: var(--white);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    overflow-x: hidden;
}

/* Typography */
.font-light {
    font-weight: 300;
}

.font-normal {
    font-weight: 400;
}

.font-medium {
    font-weight: 500;
}

.font-semibold {
    font-weight: 600;
}

.font-bold {
    font-weight: 700;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--gray-200);
    transition: all 0.3s ease;
}

nav.scrolled {
    padding: 1rem 0;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.75rem;
    font-weight: 300;
    color: var(--black);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 400;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -5px;
    left: 0;
    background: var(--black);
    transition: width 0.3s ease;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--white);
    overflow: hidden;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 150px 2rem 100px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
    width: 100%;
}

.hero-content {
    animation: slideUp 1s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(60px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-label {
    font-size: 0.85rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 2rem;
    font-weight: 500;
}

.hero-title {
    font-size: 4rem;
    font-weight: 300;
    color: var(--black);
    line-height: 1.1;
    margin-bottom: 2rem;
    letter-spacing: -2px;
}

.hero-title-accent {
    font-style: italic;
    color: var(--gray-500);
}

.hero-description {
    font-size: 1.2rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 3rem;
    font-weight: 300;
}

.hero-cta {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--black);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--gray-800);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--black);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    border-color: var(--black);
}

.hero-visual {
    position: relative;
    height: 80vh;
    animation: slideUp 1s ease-out 0.3s both;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 1rem;
    height: 100%;
}

.hero-card {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.hero-card:nth-child(1) {
    background: var(--accent-blue);
}

.hero-card:nth-child(2) {
    background: var(--gray-100);
}

.hero-card:nth-child(3) {
    background: var(--gray-200);
}

.hero-card:nth-child(4) {
    background: var(--accent-yellow);
}

.hero-card:hover {
    transform: scale(1.05);
    z-index: 10;
}

.hero-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.hero-card:hover::before {
    left: 100%;
}

.card-content {
    color: var(--black);
    text-align: center;
    font-weight: 500;
    font-size: 0.9rem;
}

.hero-card:nth-child(1) .card-content,
.hero-card:nth-child(4) .card-content {
    color: var(--white);
}

/* Services Section */
.services {
    padding: 8rem 0;
    background: var(--gray-50);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.section-label {
    font-size: 0.85rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
    font-weight: 500;
}

.section-title {
    font-size: 3rem;
    font-weight: 300;
    color: var(--black);
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
}

.section-description {
    font-size: 1.1rem;
    color: var(--gray-600);
    max-width: 600px;
    font-weight: 300;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    padding: 3rem 2rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--black);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-number {
    font-size: 0.75rem;
    color: var(--gray-400);
    font-weight: 500;
    margin-bottom: 2rem;
    letter-spacing: 1px;
}

.service-title {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--black);
    margin-bottom: 1.5rem;
    letter-spacing: -0.5px;
}

.service-description {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 2rem;
    font-weight: 300;
}

.service-link {
    color: var(--black);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.service-link:hover {
    gap: 1rem;
}

/* Portfolio Section */
.portfolio {
    padding: 8rem 0;
    background: var(--white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--gray-200);
    margin-top: 4rem;
}

.portfolio-item {
    aspect-ratio: 4/3;
    background: var(--gray-100);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.4s ease;
}

.portfolio-item:nth-child(odd) {
    background: var(--gray-200);
}

.portfolio-item:hover {
    transform: scale(1.02);
    z-index: 10;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.4s ease;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-info {
    text-align: center;
    color: var(--white);
}

.portfolio-title {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
}

.portfolio-category {
    font-size: 0.9rem;
    color: var(--gray-300);
    font-weight: 300;
}

/* Stats Section */
.stats {
    padding: 6rem 0;
    background: var(--black);
    color: var(--white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4rem;
    text-align: center;
}

.stat-item {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.stat-item.animate {
    opacity: 1;
    transform: translateY(0);
}

.stat-number {
    font-size: 3rem;
    font-weight: 300;
    margin-bottom: 0.5rem;
    display: block;
    letter-spacing: -1px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-400);
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Contact Section */
.contact {
    padding: 8rem 0;
    background: var(--gray-50);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: start;
}

.contact-info h3 {
    font-size: 2rem;
    font-weight: 300;
    margin-bottom: 2rem;
    color: var(--black);
    letter-spacing: -0.5px;
}

.contact-info p {
    color: var(--gray-600);
    margin-bottom: 3rem;
    line-height: 1.7;
    font-weight: 300;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--gray-200);
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-icon {
    width: 40px;
    height: 40px;
    background: var(--black);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.contact-details h4 {
    color: var(--black);
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.95rem;
}

.contact-details p {
    color: var(--gray-600);
    margin: 0;
    font-size: 0.9rem;
}

.contact-form {
    background: var(--white);
    padding: 3rem;
    border: 1px solid var(--gray-200);
}

.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 500;
    color: var(--black);
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--gray-300);
    background: var(--white);
    color: var(--black);
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--black);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: var(--black);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-logo {
    font-size: 1.75rem;
    font-weight: 300;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.footer-description {
    color: var(--gray-400);
    line-height: 1.7;
    font-weight: 300;
}

.footer-section h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-weight: 500;
    font-size: 0.95rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 300;
}

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

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 2rem;
    text-align: center;
    color: var(--gray-500);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hero-container {
        gap: 3rem;
    }

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

    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}

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

    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    .hero-title {
        font-size: 3rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Scroll animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

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

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Grid lines overlay for design effect */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0.02;
    background-image:
        linear-gradient(var(--gray-400) 1px, transparent 1px),
        linear-gradient(90deg, var(--gray-400) 1px, transparent 1px);
    background-size: 50px 50px;
}