:root {
  --bg: #fff;
  --text: #000;
  --border: #000;
  --card-bg: #fafafa;
  --shadow: #000;
  --input-bg: #aaa;
  --placeholder: #333;
}
body.dark-mode {
  --bg: #000;
  --text: #fff;
  --border: #fff;
  --card-bg: #222;
  --shadow: #fff;
  --input-bg: #333;
  --placeholder: #aaa;
}
body {
  font-family: "JetBrains Mono", monospace;
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
}
nav {
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-left: 3rem;
  padding-right: 3rem;
  padding-top: 3rem;
}
.logo-box {
  border: 0.2rem solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  height: fit-content;
  cursor: pointer;
}
.logo-img {
  width: 3rem;
  height: 3rem;
  object-fit: contain;
}
nav ul {
  padding-left: 5rem;
  padding-right: 5rem;
  display: flex;
  width: 1000%;
  list-style: none;
  margin: 0;
  justify-content: space-between;
  align-items: center;
}

nav ul li {
  margin: 0;
}

.nav-link {
  position: relative;
  text-decoration: none;
  font-size: 25px;
  color: var(--text);
  display: inline-block;
  padding: 5px 10px;
  overflow: hidden;
  z-index: 0;
}
.nav-link::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--text);
  transform: translateY(92%);
  transition: transform 0.3s ease, height 0.3s ease;
  z-index: -1;
}
.nav-link:hover::before {
  transform: translateY(0%);
}
.nav-link:hover {
  color: var(--bg);
}
.contact-btn {
  border: 0.2rem solid var(--border);
  border-radius: 10px;
  padding: 10px 20px;
  background: transparent;
  font-family: "JetBrains Mono", monospace;
  font-size: 25px;
  cursor: pointer;
  transition: all 0.3s;
  margin-top: 10px;
}
a.contact-btn {
  color: var(--border);
  text-decoration: none;
}
.contact-btn:hover {
  background: var(--border);
  color: var(--bg);
}
.centered {
  text-align: center;
  padding: 40px 20px;
}
.avatar {
  width: 300px;
  border-radius: 50%;
  margin-bottom: 20px;
  border: 3px solid var(--border);
}
#projects {
  display: flex;
  padding: 40px;
  gap: 40px;
}
.filters {
  flex: 1;
  max-width: 200px;
}
.filters label {
  display: block;
  margin-bottom: 10px;
}
.filters input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  position: relative;
  vertical-align: middle;
  margin-right: 8px;
  transition: background-color 0.2s ease;
}
.filters input[type="checkbox"]:checked {
  background-color: var(--text);
}

.project-list {
  flex: 3;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  max-height: 500px;
  overflow-y: auto;
  padding-right: 10px;
}
.project-card {
  border: 2px solid var(--border);
  padding: 20px;
  text-align: center;
  background: var(--card-bg);
  box-shadow: 4px 4px 0 var(--shadow);
  transition: transform 0.2s ease;
  cursor: pointer;
}
.project-card .project-link {
  display: block;
  width: 100%;
  height: 100%;
  color: inherit;
  text-decoration: none;
}
.project-card:hover {
  transform: translateY(-5px);
}
.project-card img {
  max-width: 100%;
  height: 100px;
  object-fit: cover;
  margin-bottom: 10px;
}
.modal {
  position: fixed;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease;
  z-index: 9999;
}
.modal.show {
  opacity: 1;
  visibility: visible;
}
.modal-content {
  max-height: calc(100vh -2rem);
  overflow-y: auto;
  background: var(--card-bg);
  color: var(--text);
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: 2rem 3rem 20px;
  max-width: 500px;
  width: 90%;
  transform: scale(0.8);
  transition: transform 0.3s ease;
}
.modal.show .modal-content {
  transform: scale(1);
}
.modal-close {
  all: unset;
  cursor: pointer;
  font-size: 1.5rem;
  position: absolute;
  top: 10px;
  right: 15px;
}
.modal-image {
  display: block;
  margin: 0 auto 1rem;
  width: 80%;
  height: auto;
}
.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  margin: 1rem 0;
}
.modal-tags .tag {
  display: inline-block;
  background: var(--border);
  color: var(--bg);
  padding: 2px 8px;
  border-radius: 4px;
  margin: 0;
  font-size: 0.9rem;
}
.view-btn {
  all: unset;
  cursor: pointer;
  display: inline-block;
  border: 0.2rem solid var(--border);
  border-radius: 10px;
  padding: 0.6rem 1.6rem;
  background: transparent;
  font-family: "JetBrains Mono", monospace;
  font-size: 1.1rem;
  transition: all 0.3s;
}
.view-btn:hover {
  background: var(--border);
  color: var(--bg);
}
#skills {
  padding: 60px 20px;
  background: var(--bg);
}

#skills h2 {
  padding-bottom: 20px;
  font-size: 2rem;
  margin-bottom: 30px;
  text-decoration: underline;
  text-underline-offset: 8px;
}

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 50px;
}

.skill-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 120px;
}

.skill-icon {
  width: 100px;
  height: 80px;
  object-fit: contain;
  margin-bottom: 10px;
}

.skill-name {
  font-size: 1rem;
  margin-bottom: 8px;
}

.skill-rating {
  display: flex;
  gap: 4px;
}

.skill-rating img {
  width: 20px;
  height: 20px;
}

#contact {
  padding: 60px 20px;
  background: var(--bg);
}

#contact h2 {
  font-size: 2rem;
  margin-bottom: 10px;
}

#contact p {
  font-size: 1rem;
  margin-bottom: 30px;
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  grid-gap: 3rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 15px;
  font-family: "JetBrains Mono", monospace;
  font-size: 1rem;
  border: none;
  border-radius: 4px;
  background: var(--input-bg);
  color: var(--text);
  resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--placeholder);
}
.close-btn,
.submit-btn {
  all: unset;
  cursor: pointer;
}
.submit-btn {
  display: inline-block;
  align-self: flex-start;
  border: 0.2rem solid var(--border);
  border-radius: 10px;
  padding: 0.6rem 1.6rem;
  background: transparent;
  font-family: "JetBrains Mono", monospace;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.3s;
}

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

.hamburger {
  appearance: none;
  display: none;
  position: absolute;
  top: 50%;
  left: 2.8rem;
  transform: translateY(-50%);
  flex-direction: column;
  justify-content: space-around;
  width: 2rem;
  height: 1.5rem;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}
.hamburger .bar {
  display: block;
  width: 100%;
  height: 0.3rem;
  background-color: var(--border);
  border-radius: 0.2rem;
  margin: 0.2rem 0;
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 80%;
  max-width: 20rem;
  height: 100%;
  background: var(--bg);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  box-shadow: 0.2rem 0 0.8rem rgba(0, 0, 0, 0.1);
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border-bottom: 0.1rem solid #eee;
}

.close-btn {
  background: none;
  border: none;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
}

.mobile-menu-nav {
  flex: 1;
  list-style: none;
  margin: 0;
  padding: 1rem;
}

.mobile-menu-nav li {
  margin: 1rem 0;
}
.mobile-menu-nav a {
  text-decoration: none;
  font-size: 1.25rem;
  color: var(--text);
}

.contact-mobile {
  padding-left: 1rem;
  padding-bottom: 2rem;
}

.contact-mobile .contact-btn {
  width: 100%;
  text-align: center;
}

@media (max-width: 1024px) {
  .hamburger {
    display: flex;
  }
  nav ul,
  nav .contact-btn {
    display: none;
  }
  #projects .filters {
    display: none;
  }

  #projects .project-list {
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }
  .form-row {
    grid-template-columns: 1fr;
    grid-gap: 1rem;
  }
}

@media (max-width: 600px) {
  .modal-content {
    width: 100%;
    max-width: none;
    padding: 1rem;
    max-height: calc(100vh -2rem);
    overflow-y: auto;
    font-size: 1rem;
  }
  .modal-image {
    width: 80%;
    height: auto;
    max-height: 30vh;
    object-fit: contain;
    margin-bottom: 0.75rem;
  }
  .modal-close {
    top: 0.5rem;
    right: 0.5rem;
    width: 1.8rem;
    height: 1.8rem;
    font-size: 1.5rem;
  }
}