:root {
    --bg-primary: #121212;
    --bg-secondary: #1a1a1a;
    --accent: #ffffff;
    --accent-soft: rgba(255, 255, 255, 0.2);
    --text-primary: #f0f0f0;
    --text-secondary: #b3b3b3;
    --highlight: #e0e0e0;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

header {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.header-content {
    z-index: 2;
    max-width: 800px;
}

.header-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.1), transparent 70%);
    z-index: 1;
}

nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
    background-color: rgba(18, 18, 18, 0.9);
    backdrop-filter: blur(10px);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--accent);
}

h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.highlight {
    color: var(--accent);
    font-weight: 600;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: transparent;
    color: var(--accent);
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s;
    margin-top: 1.5rem;
    border: 2px solid var(--accent);
    cursor: pointer;
}

.btn:hover {
    background-color: var(--accent);
    color: var(--bg-primary);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 255, 255, 0.2);
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.skill-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
    min-height: 100px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.1);
}

.category-lang + .skills-container .skill-card:hover {
    border-color: rgba(240, 128, 128, 0.8);
    box-shadow: 0 10px 20px rgba(240, 128, 128, 0.1);
}

.category-framework + .skills-container .skill-card:hover {
    border-color: rgba(142, 114, 212, 0.8);
    box-shadow: 0 10px 20px rgba(142, 114, 212, 0.1);
}

.category-backend + .skills-container .skill-card:hover {
    border-color: rgba(78, 169, 154, 0.8);
    box-shadow: 0 10px 20px rgba(78, 169, 154, 0.1);
}

.category-practice + .skills-container .skill-card:hover {
    border-color: rgba(209, 158, 80, 0.8);
    box-shadow: 0 10px 20px rgba(209, 158, 80, 0.1);
}

/* Change skill-name background color on hover */
.category-lang + .skills-container .skill-card:hover .skill-name {
    background-color: rgba(240, 128, 128, 0.9);
}

.category-framework + .skills-container .skill-card:hover .skill-name {
    background-color: rgba(142, 114, 212, 0.9);
}

.category-backend + .skills-container .skill-card:hover .skill-name {
    background-color: rgba(78, 169, 154, 0.9);
}

.category-practice + .skills-container .skill-card:hover .skill-name {
    background-color: rgba(209, 158, 80, 0.9);
}

.skill-icon {
    font-size: 2.5rem;
    width: 50px;
    color: var(--accent);
    transition: transform 0.3s;
}

.skill-name {
    position: absolute;
    bottom: -30px;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--bg-primary);
    padding: 0.5rem;
    font-weight: 600;
    transition: bottom 0.3s ease;
    opacity: 0;
}

.skill-card:hover .skill-name {
    bottom: 0;
    opacity: 1;
}

.skill-card:hover .skill-icon {
    transform: translateY(-10px);
}

.skills-category {
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.5rem;
    position: relative;
    padding-left: 1rem;
    border-left: 3px solid var(--accent);
}

.category-lang {
    border-left-color: rgba(240, 128, 128, 0.8);
}

.category-framework {
    border-left-color: rgba(142, 114, 212, 0.8);
}

.category-backend {
    border-left-color: rgba(78, 169, 154, 0.8);
}

.category-practice {
    border-left-color: rgba(209, 158, 80, 0.8);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background-color: var(--bg-secondary);
    border-radius: 10px;
    min-height: 100px;
    display: flex;
    flex-direction: column;
    max-width: 500px;
    max-height: 600px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.1);
}

.project-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 3px solid var(--accent);
}

.project-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.project-title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.project-tags {
    margin-top: auto;
    display: flex;
    padding-top: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background-color: var(--accent-soft);
    color: var(--text-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    margin-top : auto;
    font-size: 0.8rem;
    font-weight: 500;
}

.tag-lang {
    background-color: rgba(240, 128, 128, 0.3);
    border: 1px solid rgba(240, 128, 128, 0.6);
}

.tag-framework {
    background-color: rgba(142, 114, 212, 0.3);
    border: 1px solid rgba(142, 114, 212, 0.6);
}

.tag-backend {
    background-color: rgba(78, 169, 154, 0.3);
    border: 1px solid rgba(78, 169, 154, 0.6);
}

.tag-practice {
    background-color: rgba(209, 158, 80, 0.3);
    border: 1px solid rgba(209, 158, 80, 0.6);
}

.experience-container {
    margin-top: 3rem;
}

.experience-item {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    border-left: 4px solid var(--accent);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-left: 4px solid var(--accent);
}

.experience-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.experience-company {
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.experience-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.contact-form {
    background-color: var(--bg-secondary);
    padding: 2.5rem;
    border-radius: 10px;
    max-width: 600px;
    margin: 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

input, textarea {
    width: 100%;
    padding: 1rem;
    background-color: var(--bg-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    color: var(--text-primary);
    font-family: inherit;
    transition: border-color 0.3s;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
}

textarea {
    resize: vertical;
    min-height: 150px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.social-link {
    color: var(--text-secondary);
    font-size: 1.5rem;
    transition: color 0.3s, transform 0.3s;
}

.social-link:hover {
    color: var(--accent);
    transform: translateY(-3px);
}

footer {
    background-color: var(--bg-secondary);
    text-align: center;
    padding: 2rem;
    margin-top: 5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .nav-links {
        display: none;
    }

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

.contact-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

.contact-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
    transition: transform 0.3s, color 0.3s;
}

.contact-link:hover {
    transform: translateY(-5px);
    color: var(--accent);
}

.contact-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 0.5rem;
    transition: transform 0.3s;
}

.contact-link:hover .contact-icon {
    transform: scale(1.1);
}