/* --- VARIABLES (Edit these to change colors easily!) --- */
:root {
    --bg-color: #ffffff;
    --text-color: #111111;
    --text-secondary: #555555;
    --accent-color: #2563eb; /* Blue accent for buttons and links */
    --border-color: #e5e5e5;
    --font-family: 'Inter', sans-serif;
}

/* Dark mode auto-detection (Automatically switches based on user's OS preference) */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #121212;
        --text-color: #f5f5f5;
        --text-secondary: #a3a3a3;
        --accent-color: #60a5fa; /* Lighter blue for dark mode */
        --border-color: #2a2a2a;
    }
}

/* --- RESET & BASE STYLES --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-family);
    line-height: 1.6;
}

/* --- LAYOUT --- */
.container {
    max-width: 800px; /* A clean, narrow layout for readability */
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 60px 0;
    border-bottom: 1px solid var(--border-color);
}

.section:last-of-type {
    border-bottom: none;
}

/* --- TYPOGRAPHY --- */
h1, h2, h3 {
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-color);
}

h2 {
    font-size: 1.8rem;
    margin-bottom: 30px;
}

p {
    margin-bottom: 20px;
    color: var(--text-secondary);
}

a {
    color: var(--accent-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* --- COMPONENTS --- */

/* Navbar */
.navbar {
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    position: sticky;
    top: 0;
    background-color: var(--bg-color);
    z-index: 10;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 600;
    font-size: 1.2rem;
}

.nav-links a {
    margin-left: 20px;
    color: var(--text-secondary);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--accent-color);
    color: #ffffff;
    border-radius: 6px;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
}

.btn:hover {
    opacity: 0.9;
    text-decoration: none;
    color: #ffffff;
}

/* Hero Section */
.hero {
    padding: 100px 0 60px 0;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.hero h1 {
    font-size: 3rem;
    line-height: 1.2;
}

.hero .subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.hero .description {
    font-size: 1.1rem;
    max-width: 600px;
}

/* About Section */
.about-content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.profile-img {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 12px;
}

/* Works Section */
.works-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.project-card {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    background-color: transparent;
}

.project-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 15px;
}

.project-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* --- RESPONSIVE DESIGN (For mobile phones) --- */
@media (max-width: 768px) {
    .about-content {
        flex-direction: column;
    }
    
    .works-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
}