/* Base Resets and Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --accent: #38bdf8;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --font-stack: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html {
    scroll-behavior: smooth;
    font-family: var(--font-stack);
    background-color: var(--bg-primary);
    color: var(--text-main);
}

/* Reusable Components */
.btn {
    display: inline-block;
    background-color: var(--accent);
    color: var(--bg-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, opacity 0.2s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

.highlight {
    color: var(--accent);
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 10%;
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

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

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Sections Structure */
section {
    padding: 6rem 10% 4rem 10%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

/* Hero Section */
.hero-section {
    text-align: left;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin-bottom: 2rem;
}

/* Projects Section */
.projects-section {
    background-color: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background-color: var(--bg-primary);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s, border-color 0.3s;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.project-info {
    padding: 1.5rem;
}

.project-info h3 {
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.project-info p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.project-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

/* Contact Section */
.contact-section p {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.contact-form {
    max-width: 500px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    color: var(--text-main);
    font-family: var(--font-stack);
    font-size: 1rem;
}

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

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    background-color: var(--bg-primary);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .navbar {
        padding: 1rem 5%;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    section {
        padding: 5rem 5% 3rem 5%;
    }

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