:root {
  --bg-color: #1a202c;
  --box-color: #2d3748;
  --text-color: #e2e8f0;
  --sky-blue: #39c7d1;
  --accent-color: #9f7aea;
  --accent-hover: #b8a2f6;
  --baby-pink: #c987e7;
  --neon-slate: rgba(57, 199, 209, 0.404);
  --neon-purp: rgba(159, 122, 234, 0.4);
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

::selection {
  background-color: var(--accent-color);
  color: var(--text-color);
}

/* header */
.main-header {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  color: var(--text-color);
}

.icon {
  border-radius: 8px;
  height: 80px;
  width: 80px;
  box-shadow: 0 0 20px var(--neon-purp), 0 0 15px var(--neon-slate);
}

.cpcodex {
  font-size: 3rem;
  font-family: "Roboto Mono", monospace;
  font-weight: 300;
  font-style: oblique;
  margin: 0 15px 0 15px;
  color: var(--sky-blue);
  text-shadow: 2px 1px 5px var(--baby-pink), -2px -1px 5px var(--neon-slate);
}

.navbar-list {
  list-style-type: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.5rem;
}

.navbar a {
  text-decoration: none;
  color: var(--accent-color);
  font-size: 1.3rem;
  font-weight: 500;
  text-shadow: 2px 1.5px 1px var(--bg-color);
}

.navbar a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* hamburger menu */
.hamburger-menu {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  z-index: 10;
  flex-direction: column;
  gap: 5px;
}

.hamburger-menu .bar {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--accent-color);
  border-radius: 3px;
}

/* main content */
section.box {
  background-color: var(--box-color);
  border-radius: 8px;
  margin: 2rem 3%;
  padding: 1rem 2rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.box-header {
  text-align: center;
  margin-bottom: 1rem;
}

.box-header h2 {
  color: var(--accent-color);
  font-family: "Roboto Mono", monospace;
  font-size: 1.75rem;
  text-decoration: underline;
  text-underline-offset: 8px;
  text-shadow: 2px 1.5px 1px var(--bg-color);
}

.box-header-body p {
  color: var(--text-color);
  line-height: 1.6;
  text-shadow: none;
}

hr.seperator {
  border: none;
  height: 1px;
  background-color: #4a5568;
  margin: 2rem 0;
}

.about-me-container {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.profile-picture {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 20px var(--accent-color);
  margin-right: 10px;
}

.about-me-text p {
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
  margin-bottom: 1rem;
}

/* tech stack */
.tech-categories-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
  padding: 1rem 0;
}

.category-card {
  background-color: var(--bg-color);
  border: 1px solid #4a5568;
  border-radius: 8px;
  padding: 1.5rem;
}

.category-card h3 {
  color: var(--accent-color);
  margin-top: 0;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: 0.5rem;
  font-family: "Roboto Mono", monospace;
}

.category-card ul {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.category-card li {
  padding: 0.5rem 0;
  color: var(--text-color);
  font-size: 1rem;
  border-bottom: 1px solid #2d3748;
}

.category-card li:last-child {
  border-bottom: none;
}

.category-card.learning h3 {
  border-bottom-color: #f0db4f;
  color: #f0db4f;
}

/* projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
  padding: 1rem 0;
}

.project-card {
  background-color: var(--bg-color);
  border-radius: 8px;
  border: 1px solid #4a5568;
  overflow: hidden;
  text-decoration: none;
  color: var(--text-color);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(159, 122, 234, 0.3);
}

.project-image {
  width: 100%;
  height: 180px;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.project-card:hover .project-image img {
  transform: scale(1.05);
}

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

.project-info h3 {
  margin: 0 0 0.5rem 0;
  color: var(--accent-color);
}

.project-info p {
  font-size: 0.9rem;
  line-height: 1.5;
  flex-grow: 1;
}

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

.project-tech-tags span {
  background-color: #2d3748;
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* social links */
.social-links-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  padding: 2rem 0;
  margin-top: 2rem;
}

.social-link img {
  height: 35px;
  width: 35px;
  opacity: 0.7;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.social-link:hover img {
  opacity: 1;
  transform: scale(1.1);
}

/* footer*/
.footer {
  text-align: center;
  padding: 0.5rem;
  font-family: "Courier New", Courier, monospace;
  color: #a0aec0;
}

/* contact form styling */
.contact-form {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contact-form label {
  font-weight: 500;
  color: var(--text-color);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.75rem;
  background-color: #1a202c;
  border: 1px solid #4a5568;
  border-radius: 6px;
  color: var(--text-color);
  font-family: inherit;
  font-size: 1rem;
  box-sizing: border-box;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 5px var(--accent-color);
}

.submit-btn {
  padding: 0.75rem 1.5rem;
  background-color: #6a4da5;
  color: var(--text-color);
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s ease;
  align-self: flex-start;
}

.submit-btn:hover {
  background-color: var(--accent-hover);
}

/* responsiveness */
@media (max-width: 768px) {
  .navbar {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--box-color);
    padding: 1rem 0;
    border-top: 1px solid #4a5568;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
  }

  .navbar ul {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .main-header.is-menu-open .navbar {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .about-me-container {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .profile-picture {
    margin-bottom: 1rem;
    margin-top: 1rem;
  }
}

@media (max-width: 400px) {
  .icon {
    width: 100%;
    height: auto;
  }
}

@media (min-width: 768px) {
  .hamburger-menu {
    display: none;
  }
}