:root {
    --primary-color: #2563eb;
    --text-color: #1f2937;
    --background-color: #ffffff;
    --secondary-background: #f3f4f6;
    --accent-color: #3b82f6;
    --spacing-unit: 1rem;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

/* Header and Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(5px);
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem var(--spacing-unit);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.nav-links a {
    margin-left: 2rem;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.2s ease;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 var(--spacing-unit);
    background: linear-gradient(to bottom, #ffffff, #f8fafc);
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.tagline {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 2rem;
    color: var(--text-color);
}

.hero-description {
    max-width: 800px;
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: var(--text-color);
    opacity: 0.9;
}

/* Buttons */
.cta-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.button {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

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

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

.button.intern {
    background-color: #7c3aed;
    color: white;
    border: none;
}

.button.intern:hover {
    background-color: #6d28d9;
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Sections */
section {
    padding: 5rem var(--spacing-unit);
    max-width: 1200px;
    margin: 0 auto;
}

section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

/* About Section */
.about {
    background-color: var(--secondary-background);
}

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

.about-content p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.about-content .intro {
    font-size: 1.25rem;
    font-weight: 500;
    line-height: 1.8;
}

.about-content .specialization {
    color: var(--text-color);
    line-height: 1.8;
}

.about-content .approach {
    margin: 2rem 0;
    padding: 2rem;
    background-color: var(--background-color);
    border-radius: 0.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.about-content .approach h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.about-content .approach ul {
    list-style: none;
    padding-left: 1rem;
}

.about-content .approach li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.about-content .approach li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.about-content .philosophy {
    font-style: italic;
    color: var(--text-color);
    border-left: 4px solid var(--primary-color);
    padding-left: 1.5rem;
    margin: 2rem 0;
}

.about-content .closing {
    font-weight: 500;
    text-align: center;
    margin-top: 2rem;
}

.contact {
    text-align: center;
}

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

.contact-info p {
    margin-bottom: 1.5rem;
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem var(--spacing-unit);
    background-color: var(--secondary-background);
    color: var(--text-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 3rem;
    }

    .tagline {
        font-size: 1.25rem;
    }

    .hero-description {
        font-size: 1.1rem;
        padding: 0 1rem;
    }

    .cta-buttons {
        flex-direction: column;
    }

    section {
        padding: 3rem var(--spacing-unit);
    }

    section h2 {
        font-size: 2rem;
    }

    .about-content .intro {
        font-size: 1.1rem;
    }

    .about-content .approach {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .nav-links {
        display: none;
    }

    .about-content .approach {
        padding: 1rem;
    }
}