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

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
}

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

/* Header & Navigation */
header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

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

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

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

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

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 150px 20px 100px;
    margin-top: 70px;
    text-align: center;
}

.hero-content h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.hero-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 400;
}

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

.hero-content .alt-name {
    font-size: 1rem;
    margin-bottom: 1rem;
    margin-top: -0.5rem;
    opacity: 0.8;
    font-style: italic;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 14px 32px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    font-size: 1.05rem;
}

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

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

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.cta-primary:hover {
    background: #f0f9ff;
}

.cta-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.button-icon {
    font-size: 1.2rem;
}

/* About Section */
.about {
    padding: 80px 20px;
    background: var(--bg-light);
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.lead-text {
    font-size: 1.15rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
    line-height: 1.8;
    font-weight: 500;
}

.about-text h4 {
    font-size: 1.4rem;
    color: var(--text-dark);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.about-text h5 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.about-text p {
    font-size: 1.05rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.impact-list {
    list-style: none;
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: #f0f9ff;
    border-left: 4px solid var(--primary-color);
    border-radius: 4px;
}

.impact-list li {
    font-size: 1.05rem;
    color: var(--text-dark);
    padding: 0.5rem 0;
    font-weight: 500;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.expertise-category {
    background: #f9fafb;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

.expertise-category ul {
    list-style: none;
    margin-top: 0.75rem;
}

.expertise-category ul li {
    font-size: 0.95rem;
    color: var(--text-light);
    padding: 0.4rem 0;
    padding-left: 1.25rem;
    position: relative;
}

.expertise-category ul li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.expertise-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.expertise-list li {
    font-size: 1.1rem;
    color: var(--text-dark);
    padding: 0.5rem 0;
}

.about-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.profile-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 24px;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.profile-link:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.ai-link {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.ai-link:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.link-icon {
    font-size: 1.2rem;
}

/* Services Section */
.services {
    padding: 80px 20px;
    background: var(--white);
}

.services h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.service-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    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, 0.1);
}

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

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

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

/* Contact Section */
.contact {
    padding: 80px 20px;
    background: var(--bg-light);
    text-align: center;
}

.contact h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-content p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    font-size: 1.1rem;
}

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.contact-icon {
    font-size: 1.5rem;
}

/* Footer */
footer {
    background: var(--text-dark);
    color: var(--white);
    text-align: center;
    padding: 2rem 20px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
    }

    .hero-content h2 {
        font-size: 1.75rem;
    }

    .hero-content h3 {
        font-size: 1.5rem;
    }

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

    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }

    .cta-button {
        width: 100%;
        justify-content: center;
    }

    .about-text h3 {
        font-size: 1.5rem;
    }

    .about-text h4 {
        font-size: 1.2rem;
    }

    .lead-text {
        font-size: 1.05rem;
    }

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

    .about-links {
        flex-direction: column;
    }

    .profile-link {
        width: 100%;
        justify-content: center;
    }

    .about h2,
    .services h2,
    .contact h2 {
        font-size: 2rem;
    }

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

@media (max-width: 480px) {
    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
    }

    .logo h1 {
        font-size: 1.2rem;
    }
}