/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0066cc;
    --secondary-color: #004494;
    --accent-color: #00a3e0;
    --dark-bg: #1a1a2e;
    --light-bg: #f8f9fa;
    --text-dark: #333333;
    --text-light: #666666;
    --white: #ffffff;
    --success: #28a745;
    --border-color: #e0e0e0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

/* Header */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 100px 0;
    text-align: center;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

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

.hero-description {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto 2rem;
    line-height: 1.8;
    opacity: 0.95;
}

.cta-button {
    display: inline-block;
    background: var(--accent-color);
    color: var(--white);
    padding: 15px 40px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,163,224,0.3);
}

.cta-button:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,163,224,0.4);
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
    font-weight: 700;
}

/* Services Section */
.services {
    background: var(--light-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    color: var(--secondary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.service-card > p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service-features {
    list-style: none;
    color: var(--text-dark);
}

.service-features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.service-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

/* Expertise Section */
.expertise {
    background: var(--white);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.expertise-item {
    padding: 2rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.expertise-item:hover {
    border-color: var(--primary-color);
    background: var(--light-bg);
}

.expertise-item h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.expertise-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Credentials Section */
.credentials {
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
}

.credentials-content {
    max-width: 1000px;
    margin: 0 auto;
}

.credential-highlight {
    background: var(--white);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    display: flex;
    gap: 3rem;
    align-items: center;
    margin-bottom: 3rem;
}

.badge-container {
    flex-shrink: 0;
}

.credential-badge {
    width: 250px;
    height: 250px;
    object-fit: contain;
}

.credential-details h3 {
    color: var(--secondary-color);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.credential-level {
    color: var(--accent-color);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.credential-description {
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.verify-link {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    margin-top: 1rem;
    transition: color 0.3s ease;
}

.verify-link:hover {
    color: var(--accent-color);
}

.skills-overview {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.skills-overview h4 {
    color: var(--secondary-color);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.skills-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 0.8rem;
}

.skills-list li {
    padding: 0.7rem 0;
    padding-left: 1.8rem;
    position: relative;
    color: var(--text-dark);
    font-weight: 500;
}

.skills-list li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Why Choose Section */
.why-choose {
    background: var(--white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.benefit-item {
    text-align: center;
    padding: 2rem;
}

.benefit-item h3 {
    color: var(--secondary-color);
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

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

/* Contact Section */
.contact {
    background: var(--light-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: start;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h3 {
    color: var(--secondary-color);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.contact-info p {
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.7;
    font-size: 1.05rem;
}

.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

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

.submit-button {
    width: 100%;
    padding: 15px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
}

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

/* Footer */
footer {
    background: var(--dark-bg);
    color: var(--white);
    text-align: center;
    padding: 2rem 0;
}

.footer-tagline {
    margin-top: 0.5rem;
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
        flex-wrap: wrap;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-tagline {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .services-grid,
    .expertise-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .credential-highlight {
        flex-direction: column;
        text-align: center;
        padding: 2rem;
    }
    
    .credential-badge {
        width: 200px;
        height: 200px;
    }
    
    .skills-list {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
    }
    
    section {
        padding: 50px 0;
    }
    
    .service-card,
    .expertise-item,
    .benefit-item {
        padding: 1.5rem;
    }
}