:root {
    --primary: #4C1D95;
    --secondary: #FEF3C7;
    --accent: #84CC16;
    --text: #1F2937;
    --hover: #A3E635;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: 'Lato', sans-serif;
    color: var(--text);
    background: var(--secondary);
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 220px;
    height: 100vh;
    background: var(--primary);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    z-index: 1000;
}

.logo {
    color: white;
    font-family: 'Poppins', sans-serif;
    font-size: 1.6rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
}

.nav-links {
    list-style: none;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.nav-links li a {
    color: white;
    text-decoration: none;
    font-family: 'Lato', sans-serif;
    font-weight: 600;
    padding: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-radius: 8px;
    transition: background 0.3s ease, color 0.3s ease;
}

.nav-links li a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent);
}

.nav-links li a i {
    font-size: 1.2rem;
}

.resume-btn {
    background: var(--accent);
    color: white !important;
    border-radius: 8px;
    padding: 0.75rem;
    text-align: center;
    transition: background 0.3s ease, transform 0.3s ease;
}

.resume-btn:hover {
    background: var(--hover);
    transform: translateX(5px);
}

.theme-toggle {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    text-align: center;
    margin-top: 1rem;
    transition: transform 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

main {
    margin-left: 220px;
}

section {
    padding: 3rem 1.5rem;
    min-height: 100vh;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(0, 0, 0, 0.05));
}

section h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    text-align: left;
    margin-bottom: 1.5rem;
    position: relative;
}

section h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 80px;
    height: 4px;
    background: var(--accent);
}

#home {
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('background.jpg') no-repeat center/cover fixed;
}

.hero-content {
    text-align: center;
    max-width: 700px;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.hero-content h1 {
    font-family: 'Poppins', sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.hero-content p {
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--text);
}

.profile-image {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    margin: 1rem auto;
    border: 3px solid var(--accent);
}

.about-content {
    max-width: 700px;
    margin: 0 auto;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 12px;
}

p {
    text-align: justify;
    text-justify: inter-word;
    hyphens: auto;
    word-spacing: -0.05em;
    font-weight: 400;
}

.academics-container, .project-container, .research-container, .testimonials-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
}

.academic-card, .project-card, .research-card, .testimonial-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 1.5rem;
    width: 280px;
    transform: rotate(-2deg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.academic-card:hover, .project-card:hover, .research-card:hover, .testimonial-card:hover {
    transform: rotate(0deg) translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.academic-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.academic-card h3, .project-card h3, .research-card h3, .testimonial-card h3 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.project-card img, .research-card img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 0.75rem;
}

.see-more {
    color: var(--accent);
    text-decoration: none;
    font-family: 'Lato', sans-serif;
    font-weight: 600;
    transition: color 0.3s ease;
}

.see-more:hover {
    color: var(--hover);
}

.skills-container {
    max-width: 700px;
    margin: 0 auto;
}

.skill {
    margin-bottom: 1.5rem;
}

.skill-name {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.skill-bar {
    height: 12px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    overflow: hidden;
}

.skill-level {
    height: 100%;
    background: var(--accent);
    border-radius: 6px;
    transition: width 1.5s ease-in-out;
}

.testimonial-img {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 0.75rem;
    border: 2px solid var(--accent);
}

.testimonial-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-card .position {
    color: var(--accent);
    font-style: italic;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

.testimonial-card .quote {
    color: var(--text);
    font-size: 0.9rem;
}

.contact-form {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 12px;
}

.contact-form input,
.contact-form textarea {
    padding: 0.8rem;
    border: none;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.1);
    color: var(--text);
    font-family: 'Lato', sans-serif;
    font-weight: 400;
}

.contact-form button {
    background: var(--accent);
    color: white;
    padding: 0.8rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    transition: background 0.3s ease, transform 0.3s ease;
}

.contact-form button:hover {
    background: var(--hover);
    transform: translateY(-3px);
}

footer {
    background: var(--primary);
    color: white;
    padding: 1.5rem;
    text-align: center;
}

.contact-info p {
    margin: 0.5rem 0;
    font-size: 0.9rem;
    font-weight: 400;
}

.social-links a {
    color: white;
    font-size: 1.2rem;
    margin: 0 0.75rem;
    transition: color 0.3s ease;
}

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

@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        bottom: 0;
        top: auto;
        padding: 0.5rem;
        display: flex;
        flex-direction: row;
        justify-content: space-around;
        align-items: center;
        background: var(--primary);
        box-shadow: 0 -2px 5px rgba(0, 0, 0, 0.2);
        z-index: 1000;
    }

    .logo {
        display: none;
    }

    .nav-links {
        flex-direction: row;
        gap: 0;
        flex-wrap: wrap;
        justify-content: space-around;
    }

    .nav-links li a {
        padding: 0.5rem;
        font-size: 0.8rem;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0.25rem;
    }

    .nav-links li a i {
        font-size: 1rem;
    }

    .resume-btn {
        padding: 0.5rem;
    }

    .theme-toggle {
        font-size: 1rem;
        margin: 0;
    }

    main {
        margin-left: 0;
        margin-bottom: 60px;
    }

    section {
        padding: 2rem 1rem;
        min-height: auto;
    }

    section h2 {
        font-size: 1.8rem;
    }

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

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

    p {
        text-align: left;
        hyphens: none;
        word-spacing: normal;
    }

    .profile-image {
        width: 120px;
        height: 120px;
    }

    .about-content {
        padding: 1rem;
    }

    .academics-container, .project-container, .research-container, .testimonials-container {
        gap: 1rem;
    }

    .academic-card, .project-card, .research-card, .testimonial-card {
        width: 100%;
        max-width: 320px;
        transform: none;
    }

    .project-card img, .research-card img {
        height: 120px;
    }
}