:root {
    --primary: #2A2A2A;
    --secondary: #1A1A1A;
    --accent: #7289DA;
    --text: #FFFFFF;
    --text-secondary: #CCCCCC;
    --shadow: 0 2px 10px rgba(0,0,0,0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
    transition: background-color 0.3s ease, color 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--primary);
    color: var(--text);
    line-height: 1.6;
    padding-top: 80px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* Header */
header {
    background-color: var(--secondary);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
    border-bottom: 3px solid var(--accent);
    padding: 1rem 0;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

/* Projects Section */
.projects {
    padding: 4rem 0;
}

.projects h2 {
    margin-bottom: 2rem;
    text-align: center;
    font-size: 2rem;
    color: var(--accent);
}

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

.project-card {
    background-color: var(--secondary);
    border-radius: 15px;
    overflow: hidden;
    transition: transform 0.3s;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    height: 400px;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.2);
}

.card-image {
    flex-shrink: 0;
    height: 65%;
    object-fit: cover;
    border-bottom: 3px solid var(--accent);
    width: 100%;
}

.card-content {
    flex-grow: 1;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-content p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.project-card h3 {
    color: var(--accent);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

/* Tech Stack */
.tech-stack {
    padding: 4rem 0;
    background-color: var(--secondary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.tech-item {
    background: var(--primary);
    color: var(--text);
    border-radius: 1rem;
    padding: 1.5rem;
    transition: all 0.3s ease;
    text-align: center;
    border: 2px solid var(--accent);
}

.tech-item:hover {
    transform: translateY(-5px);
    background: var(--secondary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.tech-item i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

/* Footer */
footer {
    background-color: var(--secondary);
    padding: 1rem 0 0.5rem;
    border-top: 3px solid var(--accent);
}

.footer-links a {
    color: var(--text);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 1rem;
    margin-top: 1rem;
    font-size: 0.8rem;
    opacity: 0.8;
    color: var(--text-secondary);
}

/* Mobile Support */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }

    header {
        padding: 0.8rem 0;
    }

    .project-card {
        height: 350px;
    }

    .card-image {
        height: 60%;
    }

    .card-content {
        padding: 1rem;
    }

    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Light Theme */
body.light-theme {
    --primary: #f5f5f5;
    --secondary: #ffffff;
    --accent: #5865F2;
    --text: #2A2A2A;
    --text-secondary: #000000;  /* Changed to pure black */
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--accent);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow);
    z-index: 1000;
}