:root {
    --bg-body: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-card-hover: #F1F5F9;
    --text-primary: #0F172A;
    --text-secondary: #64748B;
    --accent: #3B82F6;
    --accent-secondary: #10B981;
    --accent-hover: #2563EB;
    --border-light: #E2E8F0;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
    
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --container-width: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

h2, h3 {
    font-weight: 600;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
}

.btn {
    display: inline-block;
    padding: 16px 32px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    text-transform: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    color: #FFF;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
}

.btn-secondary:hover {
    background-color: var(--accent);
    color: #FFF;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-submit {
    width: 100%;
}

/* Header */
.header {
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
}

.header-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-list {
    display: flex;
    gap: 40px;
}

.nav-list a {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: 0.3s;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: var(--header-height);
    background: linear-gradient(135deg, #F8FAFC 0%, #E0E7FF 50%, #F0FDF4 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    opacity: 0.4;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: 4.5rem;
    margin-bottom: 24px;
    letter-spacing: -2px;
    font-weight: 700;
    line-height: 1.1;
}

.accent-text {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 500px;
    font-weight: 400;
    line-height: 1.7;
}

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

.overline {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    margin-bottom: 16px;
    font-weight: 600;
}

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

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

.service-card {
    background-color: var(--bg-card);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 2px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(16, 185, 129, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-card:hover::before {
    opacity: 1;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
    background-color: var(--bg-card-hover);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 24px;
    transition: transform 0.3s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

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

/* About */
.about {
    background-color: #FFFFFF;
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.about-image {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.tech-illustration {
    width: 100%;
    height: auto;
    max-width: 500px;
    filter: drop-shadow(0 10px 30px rgba(59, 130, 246, 0.15));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.tech-illustration rect,
.tech-illustration circle,
.tech-illustration path,
.tech-illustration line {
    transition: all 0.3s ease;
}

.about-image:hover .tech-illustration {
    filter: drop-shadow(0 15px 40px rgba(59, 130, 246, 0.25));
    transform: scale(1.02);
}

/* Location */
.location {
    background-color: var(--bg-body);
}

.map-container {
    width: 100%;
    height: 450px;
    background-color: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-light);
}

.map-container iframe {
    filter: grayscale(10%) brightness(1.05);
    transition: filter 0.3s ease;
}

.map-container:hover iframe {
    filter: grayscale(0%) brightness(1.1);
}

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

.info-item {
    margin-bottom: 30px;
}

.info-item .label {
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.info-item p {
    font-size: 1.1rem;
    font-weight: 500;
}

.info-item a {
    color: var(--accent);
    transition: all 0.3s ease;
}

.info-item a:hover {
    color: var(--accent-hover);
}

.contact-form {
    background-color: var(--bg-card);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-light);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-light);
    background-color: var(--bg-body);
    border-radius: 10px;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-secondary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    background-color: #FFFFFF;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: #FFF;
    padding: 80px 0 30px;
    border-top: 1px solid var(--border-light);
}

.footer-content {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-column {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 16px;
    letter-spacing: 1px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-top: 8px;
}

.footer-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #FFF;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}

.footer-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-nav li {
    margin-bottom: 12px;
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-nav a:hover {
    color: var(--accent);
    transform: translateX(5px);
}

.footer-contact-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-contact-list li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 16px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    line-height: 1.6;
}

.contact-icon {
    font-size: 1.2rem;
    margin-right: 12px;
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-contact-list a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    margin: 0;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: var(--bg-card);
    padding: 40px;
    border-radius: 16px;
    text-align: center;
    max-width: 400px;
    width: 90%;
    transform: translateY(20px);
    transition: transform 0.3s ease;
    box-shadow: var(--shadow-glow);
    position: relative;
    border: 2px solid var(--border-light);
}

.modal.active .modal-content {
    transform: translateY(0);
}

.close-modal {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-icon {
    font-size: 48px;
    color: var(--accent-secondary);
    margin-bottom: 20px;
}

.modal-content h3 {
    margin-bottom: 12px;
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #FFFFFF;
        padding: 20px;
        box-shadow: var(--shadow-md);
        border-top: 1px solid var(--border-light);
    }
    
    .nav.active {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .about-grid,
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer {
        padding: 60px 0 20px;
    }
    
    .footer-about {
        text-align: center;
    }
    
    .footer-links,
    .footer-services {
        text-align: center;
    }
    
    .footer-contact-list li {
        justify-content: center;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr;
        gap: 30px;
    }
    
    .footer-contact {
        grid-column: 1 / -1;
    }
}