/* Base styles */
:root {
    --bg-color-light: #f8f9fa;
    --text-color-light: #343a40;
    --bg-color-dark: #121212;
    --text-color-dark: #f8f9fa;

    --primary-color: #007bff;
    --accent-color: #6c757d;
    --transition-speed: 0.3s;
}

/* Global Styles */
body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color-light);
    color: var(--text-color-light);
    line-height: 1.6;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--primary-color);
    color: white;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

nav {
    display: flex;
    gap: 1.5rem;
}

nav a {
    color: white;
    text-decoration: none;
    font-size: 1rem;
    position: relative;
}

nav a::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: white;
    transition: width var(--transition-speed);
    position: absolute;
    bottom: -5px;
    left: 0;
}

nav a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: white;
    border-radius: 2px;
}

#theme-toggle {
    margin-left: 1rem;
    font-size: 1.2rem;
}

/* Hero Section */
.hero {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    padding: 0 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    text-align: center;
    margin-top: 60px; /* Offset for fixed header */
}

.hero .btn {
    margin-top: 1.5rem;
    padding: 0.8rem 1.5rem;
    background-color: white;
    color: var(--primary-color);
    border: none;
    border-radius: 25px;
    cursor: pointer;
    text-decoration: none;
    font-weight: bold;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.hero .btn:hover {
    background-color: var(--primary-color);
    color: white;
}

/* About Section */
.about {
    padding: 4rem 2rem;
    background-color: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.about-content {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 2rem;
    max-width: 800px;
    flex-wrap: wrap;
}

.about-content img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary-color);
}

.about-content p {
    flex: 1;
    font-size: 1.1rem;
}

/* Projects Section */
.projects {
    padding: 4rem 2rem;
    background-color: #f1f1f1;
}

.projects .project-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.project-card {
    background-color: white;
    border: 1px solid var(--accent-color);
    border-radius: 8px;
    padding: 1rem;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.project-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 4px;
}

.project-card h3 {
    margin: 1rem 0 0.5rem 0;
}

.project-card p {
    flex: 1;
    text-align: center;
}

.project-card .modal-btn {
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: background-color var(--transition-speed);
}

.project-card .modal-btn:hover {
    background-color: #0056b3;
}

/* Modal Styles */
.modal {
    display: none; /* Hidden by default */
    position: fixed; 
    z-index: 2000; 
    left: 0;
    top: 0;
    width: 100%; 
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.8); /* Black w/ opacity */
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: #fefefe;
    margin: auto;
    padding: 2rem;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
    position: relative;
    border-radius: 10px;
    text-align: center;
}

.close-btn {
    color: #aaa;
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
}

.close-btn:hover,
.close-btn:focus {
    color: black;
}

.modal-content img {
    width: 100%;
    height: auto;
    margin: 1rem 0;
}

.modal-content .btn {
    margin-top: 1rem;
    padding: 0.8rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    text-decoration: none;
    font-weight: bold;
    transition: background-color var(--transition-speed);
}

.modal-content .btn:hover {
    background-color: #0056b3;
}

/* Contact Section */
.contact {
    padding: 4rem 2rem;
    background-color: #ffffff;
}

.contact form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

.contact form label {
    align-self: flex-start;
    margin-left: 10%;
    font-weight: bold;
}

.contact form input, 
.contact form textarea {
    width: 80%;
    padding: 0.8rem;
    border: 1px solid var(--accent-color);
    border-radius: 4px;
    resize: vertical;
    font-size: 1rem;
}

.contact form button {
    width: 40%;
    padding: 0.8rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: background-color var(--transition-speed);
}

.contact form button:hover {
    background-color: #0056b3;
}

#form-message {
    margin-top: 1rem;
    text-align: center;
    font-size: 1.1rem;
    color: green;
}

/* Footer */
footer {
    text-align: center;
    padding: 1.5rem 2rem;
    background-color: var(--accent-color);
    color: white;
}

footer .social-links {
    margin-top: 0.5rem;
}

footer .social-links a {
    color: white;
    margin: 0 0.5rem;
    text-decoration: none;
    font-size: 1.2rem;
    transition: color var(--transition-speed);
}

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

/* Dark Mode */
body.dark-mode {
    background-color: var(--bg-color-dark);
    color: var(--text-color-dark);
}

body.dark-mode header {
    background-color: #1f1f1f;
}

body.dark-mode .hero {
    background: linear-gradient(135deg, #1f1f1f, #343a40);
}

body.dark-mode .about,
body.dark-mode .projects,
body.dark-mode .contact {
    background-color: #1f1f1f;
}

body.dark-mode .project-card {
    border: 1px solid #444;
    background-color: #2c2c2c;
}

body.dark-mode .modal-content {
    background-color: #2c2c2c;
    color: #f8f9fa;
    border: 1px solid #444;
}

body.dark-mode footer {
    background-color: #343a40;
}

/* Responsive Styles */
@media (max-width: 768px) {
    nav {
        display: none;
        flex-direction: column;
        background-color: var(--primary-color);
        position: absolute;
        top: 60px;
        right: 0;
        width: 200px;
        padding: 1rem;
    }
    
    nav.active {
        display: flex;
    }

    .hamburger {
        display: flex;
    }

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

    .contact form label,
    .contact form input,
    .contact form textarea {
        width: 100%;
        margin-left: 0;
    }

    .contact form button {
        width: 60%;
    }
}

/* Light and Dark Mode */
html[data-theme="dark"] {
    background-color: #121212;
    color: #f8f9fa;
}

html[data-theme="dark"] header {
    background-color: #1a73e8;
}

html[data-theme="dark"] .hero {
    background-color: #1a1a1a;
}

html[data-theme="dark"] footer {
    background-color: #1a73e8;
}

html[data-theme="dark"] .project-card {
    background-color: #1e1e1e;
    color: white;
}

html[data-theme="dark"] .modal {
    background-color: rgba(0, 0, 0, 0.8);
}

html[data-theme="dark"] .modal-content {
    background-color: #333;
    color: white;
}

/* Adjust other sections similarly */