:root {
  --bg: #f4f4f4;
  --txt: #000000;
  --accent: #ff0000;
}

@media (prefers-color-scheme: light) {
  body::after {
    background: rgba(255, 255, 255, 0.4);
  }
}

html {
  scroll-behavior: smooth;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #2e2e2e;
    --txt: #ffffff;
    --accent: #00c3ff;
  }
}

body::before {
  content: "";
  position: fixed;
  inset: 0;

  background: url("assets/web-background.png") center/cover no-repeat;

  filter: blur(20px);
  transform: scale(1.1);

  z-index: -2;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;

  background: rgba(0, 0, 0, 0.35);

  z-index: -1;
}

body {
  position: relative;
  min-height: 100vh;
  margin: 0;
  padding: 40px;
  max-width: 900px;

  font-family: Inter, sans-serif;
  color: var(--txt);

  background: transparent;
}

nav {
  margin-bottom: 20px;
}

nav a {
  margin-right: 15px;
  text-decoration: none;
  transition: 0.3s;
  color: #8b7bff;
}

nav a:hover {
  color: #c042ff;
  text-decoration: underline;
}

header {
  background-color: var(--bg);
  border-radius: 25px;
  padding: 15px;
  display: flex;
  align-items: center;
  gap: 30px;
}

.photo {
  margin-left: auto;
  height: 180px;
  width: auto;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

h1, h2, h3, h4 {
  font-family: Ubuntu, sans-serif;
  background: linear-gradient(150deg, var(--txt), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h4 {
  margin-left: 15px;
}

section {
  opacity: 0;
  transform: translateY(20px);
  animation: appear 0.8s ease forwards;
  scroll-margin-top: 100px;
  margin-top: 60px;
}

article {
  margin-top: 40px;
}

.project-preview {
  margin-top: 20px;
}

@keyframes appear {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.preview-btn {
  display: inline-block;
  padding: 10px 14px;
  background: #4571ff;
  color: white;
  border-radius: 8px;
  text-decoration: none;
  transition: 0.3s;
  margin-top: 10px;
}

.preview-btn:hover {
  opacity: 0.8;
}

.code-btn {
  display: inline-block;
  padding: 10px 14px;
  background: #1e932c;
  color: white;
  border-radius: 8px;
  text-decoration: none;
  transition: 0.3s;
  margin-top: 10px;
}

.code-btn:hover {
  opacity: 0.8;
}

.pdf-btn {
  display: inline-block;
  margin-top: 15px;
  padding: 8px 15px;
  background-color: var(--txt);
  color: var(--bg);
  text-decoration: none;
  border-radius: 6px;
  transition: 0.3s ease;
}

.pdf-btn:hover {
  opacity: 0.8;
}

ul {
  padding-left: 20px;
  margin-bottom: 30px;
}

li {
  margin-left: 20px;
  margin-bottom: 8px;
  transition: transform 0.3s ease;
}

li:hover {
  transform: scale(1.05);
}

.no_dot {
  list-style: none;
}

nav {
  position: sticky;
  top: 20px;
  padding: 20px;
  background-color: var(--bg);
  border-radius: 8px;
  z-index: 100;
}