:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #0f172a;
    --accent: #3b82f6;
    --light: #f8fafc;
    --light-gray: #e2e8f0;
    --medium-gray: #94a3b8;
    --dark-gray: #475569;
    --text: #1e293b;
    --text-light: #64748b;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --radius: 8px;
    --transition: all 0.3s ease;
}

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

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--light);
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 10px 0;
}

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

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-img {
    height: 50px;
    width: 50px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--light-gray);
    flex-shrink: 0;
}

.logo-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.logo-text h1 {
    font-size: 1.5rem;
    color: var(--secondary);
    font-weight: 700;
    line-height: 1.2;
}

.logo-text p {
    font-size: 0.85rem;
    color: var(--medium-gray);
    margin-top: 2px;
}

/* Navigation */
.nav-links {
    display: flex;
    gap: 25px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary);
    transition: var(--transition);
}

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

.nav-links #store {
    background-color: var(--primary);
    color: var(--white);
    padding: 8px 18px;
    border-radius: var(--radius);
    font-weight: 600;
    margin-left: 10px;
}

.nav-links #store:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    color: var(--white);
}

.nav-links #store::after {
    display: none;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--secondary);
    cursor: pointer;
    z-index: 1001;
}

/* Main Content */
main {
    padding: 40px 0;
}

.section {
    margin-bottom: 80px;
    scroll-margin-top: 80px;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 2.2rem;
    color: var(--secondary);
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    width: 70px;
    height: 4px;
    background-color: var(--primary);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.section-content {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

/* About Section */
.about-content p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text);
    line-height: 1.8;
}

.about-content b, .about-content strong {
    color: var(--primary);
    font-weight: 600;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.service-card {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--primary);
    transition: var(--transition);
    height: 100%;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-card h3 {
    font-size: 1.3rem;
    color: var(--secondary);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-card h3 i {
    color: var(--primary);
    font-size: 1.2rem;
}

.service-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
}

.project-card {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.project-card h3 {
    font-size: 1.3rem;
    color: var(--secondary);
    margin-bottom: 15px;
}

.project-card p {
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.7;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.tech-tag {
    background-color: var(--light-gray);
    color: var(--dark-gray);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.project-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.project-links a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--primary);
    color: var(--white);
    padding: 8px 15px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.9rem;
}

.project-links a:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.project-links a i {
    font-size: 0.9rem;
}

/* Social Section */
.social-cards {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-top: 30px;
}

.social-card {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 20px;
    border-radius: var(--radius);
    background-color: var(--light);
    transition: var(--transition);
}

.social-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.social-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--white);
    flex-shrink: 0;
}

.social-icon.telegram {
    background-color: #0088cc;
}

.social-icon.youtube {
    background-color: #ff0000;
}

.social-icon.instagram {
    background-color: #e1306c;
}

.social-content {
    flex-grow: 1;
}

.social-content h3 {
    font-size: 1.3rem;
    color: var(--secondary);
    margin-bottom: 8px;
}

.social-content p {
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.6;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.social-link:hover {
    gap: 12px;
    color: var(--primary-dark);
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info h3 {
    font-size: 1.5rem;
    color: var(--secondary);
    margin-bottom: 15px;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.contact-item i {
    color: var(--primary);
    font-size: 1.2rem;
    margin-top: 3px;
}

.contact-item h4 {
    font-size: 1.1rem;
    color: var(--secondary);
    margin-bottom: 5px;
}

.contact-item p {
    color: var(--text-light);
}

.contact-form {
    background-color: var(--light);
    padding: 25px;
    border-radius: var(--radius);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--light-gray);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.submit-btn {
    background-color: var(--primary);
    color: var(--white);
    border: none;
    padding: 12px 25px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    justify-content: center;
}

.submit-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Footer */
footer {
    background-color: var(--secondary);
    color: var(--white);
    padding: 50px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-logo .logo-img {
    border-color: var(--medium-gray);
}

.footer-text h3 {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.footer-text p {
    color: var(--medium-gray);
}

.footer-links {
    display: flex;
    gap: 50px;
    flex-wrap: wrap;
}

.footer-nav, .footer-social {
    display: flex;
    flex-direction: column;
}

.footer-nav h4, .footer-social h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-nav a {
    color: var(--medium-gray);
    text-decoration: none;
    margin-bottom: 10px;
    transition: var(--transition);
}

.footer-nav a:hover {
    color: var(--white);
    padding-left: 5px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--primary);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    color: var(--medium-gray);
    font-size: 0.9rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.footer-bottom p {
    display: flex;
    align-items: center;
    gap: 5px;
}

.footer-bottom i {
    color: var(--danger);
}

/* Responsive Styles */
@media (max-width: 992px) {
    .contact-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 280px;
        background-color: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 80px;
        padding-left: 30px;
        gap: 20px;
        transition: var(--transition);
        box-shadow: var(--shadow-xl);
        z-index: 1000;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links a {
        font-size: 1.1rem;
        padding: 5px 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .social-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .social-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    .logo-text h1 {
        font-size: 1.3rem;
    }
    
    .section {
        margin-bottom: 60px;
    }
    
    .section-content {
        padding: 20px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
}

/* Form Submission Success Message */
.success-message {
    background-color: var(--success);
    color: var(--white);
    padding: 15px;
    border-radius: var(--radius);
    margin-top: 20px;
    text-align: center;
    display: none;
}

/* Animation for section appearance */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-content {
    animation: fadeInUp 0.5s ease-out;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--light-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}