:root {
    --primary-color: #1a3a6e;
    --secondary-color: #4d7cc3;
    --accent-color: #ff6b35;
    --text-dark: #2c3e50;
    --text-light: #f8f9fa;
    --bg-light: #ffffff;
    --bg-dark: #0d2444;
    --bg-gray: #f4f7fb;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    background-color: var(--bg-light);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

header.scrolled {
    padding: 0.5rem 5%;
    background-color: rgba(255, 255, 255, 0.95);
}

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

.logo {
    height: 50px;
    width: auto;
}

nav ul {
    display: flex;
    gap: 2rem;
}

nav ul li a {
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

nav ul li a:hover {
    color: var(--primary-color);
}

nav ul li a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    background-color: var(--bg-dark);
    color: var(--text-light);
    overflow: hidden;
    padding-top: 80px;
}

#canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.4;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 2rem;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero h2 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-button:hover {
    background-color: #e55a29;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Services Section */
.services {
    padding: 5rem 5%;
    background-color: var(--bg-light);
}

.services h2, 
.expertise h2, 
.projects h2, 
.about h2, 
.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
    position: relative;
}

.services h2::after, 
.expertise h2::after, 
.projects h2::after, 
.about h2::after, 
.contact h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--accent-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--bg-light);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

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

.service-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    width: 80px;
    height: 80px;
    background-color: var(--bg-gray);
    border-radius: 50%;
    color: var(--primary-color);
}

.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.service-card p {
    color: var(--text-dark);
    opacity: 0.8;
}

/* Expertise Section */
.expertise {
    padding: 5rem 5%;
    background-color: var(--bg-gray);
}

.skills-container {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 2rem;
}

.skill-category {
    flex: 1;
    min-width: 250px;
}

.skill-category h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 0.5rem;
}

.skill-category h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--accent-color);
}

.skill-category ul li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.skill-category ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

/* Projects Section */
.projects {
    padding: 5rem 5%;
    background-color: var(--bg-light);
}

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

.project-card {
    background-color: var(--bg-light);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.project-image {
    height: 160px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-gray);
}

.project-image svg {
    width: 80px;
    height: 80px;
    color: var(--primary-color);
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.project-content p {
    color: var(--text-dark);
    opacity: 0.8;
    margin-bottom: 1rem;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tags span {
    background-color: var(--bg-gray);
    padding: 0.3rem 0.8rem;
    border-radius: 30px;
    font-size: 0.8rem;
    color: var(--primary-color);
}

/* About Section */
.about {
    padding: 5rem 5%;
    background-color: var(--bg-gray);
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.about-text {
    flex: 2;
    min-width: 300px;
}

.about-text p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.about-stats {
    flex: 1;
    min-width: 250px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.stat-label {
    font-size: 1rem;
    color: var(--text-dark);
    opacity: 0.8;
}

/* Contact Section */
.contact {
    padding: 5rem 5%;
    background-color: var(--bg-light);
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.contact-info {
    flex: 1;
    min-width: 300px;
}

.contact-info p {
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.contact-method svg {
    color: var(--secondary-color);
}

.contact-form {
    flex: 1;
    min-width: 300px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(77, 124, 195, 0.2);
}

.submit-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-button:hover {
    background-color: var(--secondary-color);
}

/* Footer */
footer {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: 3rem 5% 1rem;
}

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

.footer-logo {
    flex: 1;
    min-width: 250px;
}

.footer-logo .logo {
    height: 50px;
    width: auto;
    margin-bottom: 1rem;
}

.footer-logo p {
    opacity: 0.8;
}

.footer-links {
    flex: 1;
    min-width: 200px;
}

.footer-links h4,
.footer-social h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: white;
}

.footer-links ul li {
    margin-bottom: 0.5rem;
}

.footer-links ul li a {
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links ul li a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.footer-social {
    flex: 1;
    min-width: 200px;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.social-icon:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 900px) {
    nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--bg-light);
        box-shadow: var(--shadow);
        padding: 2rem;
        transform: translateY(-150%);
        transition: var(--transition);
        z-index: 999;
    }

    nav.active {
        transform: translateY(0);
    }

    nav ul {
        flex-direction: column;
        gap: 1rem;
    }

    .menu-toggle {
        display: flex;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero h2 {
        font-size: 1.2rem;
    }
}

@media (max-width: 600px) {
    .services h2, 
    .expertise h2, 
    .projects h2, 
    .about h2, 
    .contact h2 {
        font-size: 2rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .services, 
    .expertise, 
    .projects, 
    .about, 
    .contact {
        padding: 3rem 5%;
    }
}