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

:root {
    --primary-blue: #2563eb;
    --dark-blue: #1e40af;
    --light-blue: #3b82f6;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
    --bg-light: #f9fafb;
    --border-gray: #e5e7eb;
    --success-green: #10b981;
}

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

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

/* Hero Section */
.hero {
    text-align: center;
    padding: 80px 20px 60px;
    border-bottom: 1px solid var(--border-gray);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.hero .subtitle {
    font-size: 1.25rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 20px;
}

.hero .tagline {
    font-size: 1.125rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Projects Section */
.projects {
    padding: 80px 20px;
}

.projects h2 {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.project-card {
    background: var(--bg-light);
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    padding: 30px;
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-blue);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.project-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge.live {
    background-color: var(--success-green);
    color: white;
}

.project-description {
    color: var(--text-gray);
    margin-bottom: 20px;
    line-height: 1.7;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tech-tag {
    background-color: #dbeafe;
    color: var(--dark-blue);
    font-size: 0.875rem;
    padding: 4px 12px;
    border-radius: 4px;
    font-weight: 500;
}

.project-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-gray);
}

.pricing {
    font-weight: 700;
    color: var(--primary-blue);
    font-size: 1.125rem;
}

.project-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

.project-link:hover {
    color: var(--dark-blue);
}

/* Tech Stack Section */
.tech-stack {
    background-color: var(--bg-light);
    padding: 80px 20px;
    border-top: 1px solid var(--border-gray);
}

.tech-stack h2 {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.tech-category h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.tech-category ul {
    list-style: none;
}

.tech-category li {
    color: var(--text-gray);
    padding: 6px 0;
    font-size: 1rem;
}

/* Contact Section */
.contact {
    padding: 80px 20px;
    text-align: center;
}

.contact h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.contact-intro {
    color: var(--text-gray);
    font-size: 1.125rem;
    margin-bottom: 30px;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.contact-link {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-blue);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: background-color 0.2s ease;
}

.contact-link:hover {
    background-color: var(--dark-blue);
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 20px;
    border-top: 1px solid var(--border-gray);
    color: var(--text-gray);
    font-size: 0.875rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.25rem;
    }

    .hero .subtitle {
        font-size: 1.125rem;
    }

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

    .projects,
    .tech-stack,
    .contact {
        padding: 60px 20px;
    }

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

    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 20px 40px;
    }

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

    .projects h2,
    .tech-stack h2,
    .contact h2 {
        font-size: 1.75rem;
    }

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

    .project-footer {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }

    .contact-links {
        flex-direction: column;
        gap: 15px;
    }

    .contact-link {
        width: 100%;
        max-width: 300px;
    }
}