@import url('https://fonts.googleapis.com/css2?family=Ubuntu:ital,wght@0,300;0,400;0,500;0,700;1,300;1,400;1,500;1,700&display=swap');

/* ------------------- */
/* 1. Root Variables  */
/* ------------------- */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;
    --text-primary: #000000;
    --text-secondary: #666666;
    --border: #eaeaea;
    --transition: all 0.2s ease-in-out;
}

[data-theme="dark"] {
    --bg-primary: #000000;
    --bg-secondary: #111111;
    --text-primary: #ffffff;
    --text-secondary: #888888;
    --border: #333333;
}

/* ------------------- */
/* 2. Base & Layout   */
/* ------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-padding-top: 80px;
    /* Offset for sticky header */
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: "Ubuntu", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    transition: var(--transition);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
    border-bottom: 1px solid var(--border);
}

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

/* ------------------- */
/* 3. Typography      */
/* ------------------- */
.section-title {
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 30px;
    text-align: left;
}

h1,
h2,
h3 {
    color: var(--text-primary);
    font-weight: 500;
}

p {
    color: var(--text-secondary);
}

/* ------------------- */
/* 4. Header & Nav    */
/* ------------------- */
header {
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    background-color: var(--bg-primary);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-items {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 400;
    transition: var(--transition);
}

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

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 5px;
    transition: var(--transition);
}

.theme-toggle:hover {
    color: var(--text-primary);
}

/* ------------------- */
/* 5. Hero Section    */
/* ------------------- */
.hero {
    padding: 60px 0;
    text-align: left;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    max-width: 800px;
}

.hero p {
    font-size: 1.1rem;
    max-width: 650px;
    margin-bottom: 30px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links .social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);

}

.social-links .social-link i {
    font-size: 1.6rem;
}

.social-links .social-link:hover {
    color: var(--text-primary);
}

/* ------------------- */
/* 6. Cards & Grids   */
/* ------------------- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.card,
.project-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 25px;
    transition: var(--transition);
}

.card:hover,
.project-card:hover {
    border-color: var(--text-secondary);
}

.project-card h3,
.card h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.project-description {
    font-size: 1rem;
    margin-bottom: 20px;
}

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

.tech-tag {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--border);
}

.project-links {
    display: flex;
    gap: 15px;
    margin-top: auto;
    /* Pushes links to the bottom */
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.project-link:hover {
    color: var(--text-primary);
}


/* ------------------- */
/* 7. Specific Sections */
/* ------------------- */
#about .about-content {
    max-width: 800px;
    font-size: 1.1rem;
}

#about .about-content p {
    margin-bottom: 15px;
}

/* About Section Enhancement */
#about .about-content {
    max-width: 800px;
    font-size: 1.1rem;
}

#about .about-subtitle {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.4;
}

#about .about-content p {
    margin-bottom: 20px;
}

#about .about-content p:last-child {
    margin-bottom: 0;
}

#contact .contact-content {
    max-width: 600px;
}

#contact .contact-info {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#contact .contact-info p {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Styling for interactive contact links */
#contact .contact-info a {
    color: inherit;
    /* Inherits the text color from its parent */
    text-decoration: none;
    /* Removes the underline */
    transition: var(--transition);
}

#contact .contact-info a:hover {
    color: var(--text-primary);
    /* Changes color on hover, consistent with other links */
}


/* ------------------- */
/* 8. Footer          */
/* ------------------- */
footer {
    padding: 40px 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ------------------- */
/* 9. Responsiveness  */
/* ------------------- */
@media (max-width: 768px) {
    .section-title {
        font-size: 1.8rem;
    }

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

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

    nav {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }

    .nav-items {
        width: 100%;
        justify-content: space-between;
    }

    .nav-links {
        gap: 15px;
        flex-wrap: wrap;
    }

    .nav-links a {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    section {
        padding: 60px 0;
    }

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

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

    .nav-links {
        gap: 10px;
    }
}