* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Segoe UI', sans-serif;
  background: #121212;
  color: #fff;
  line-height: 1.6;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #1e1e1e;
  padding: 20px 5%;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: background 0.3s ease;
}

nav.scrolled {
  background: rgba(30, 30, 30, 0.85);
  backdrop-filter: blur(10px);
}

nav .nav-logo {
    font-weight: bold;
    font-size: 1.5em;
    color: #fff;
    text-decoration: none;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 30px;
}
nav a.nav-link {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  position: relative;
  transition: color 0.3s;
}

nav a.nav-link:hover, nav a.nav-link.active {
  color: #00bfff;
}

nav a.nav-link::after {
    content: '';
    position: absolute;
    width: 100%;
    transform: scaleX(0);
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: #00bfff;
    transform-origin: bottom right;
    transition: transform 0.25s ease-out;
}
nav a.nav-link:hover::after, nav a.nav-link.active::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.hamburger {
    display: none;
    cursor: pointer;
}
.hamburger .line {
    width: 25px;
    height: 3px;
    background-color: #fff;
    margin: 5px;
    transition: all 0.3s ease;
}

section { padding: 80px 5%; }

.home-section {
  height: 100vh;
  background: radial-gradient(circle, #1f1f1f, #121212);
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}
.home-text h1 { font-size: 3em; }
.home-text p { font-size: 1.2em; }

.about-container {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  max-width: 1000px;
  margin: auto;
}
.about-img {
  flex: 1; min-width: 280px; text-align: center;
}
.cv-button {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 25px;
  background-color: #00b894;
  color: #fff;
  text-decoration: none;
  border-radius: 25px;
  font-weight: bold;
  transition: all 0.3s ease;
}

.cv-button:hover {
  background-color: #019875;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}
.about-img img {
  width: 100%; max-width: 300px;
  border-radius: 15px;
}
.about-text { flex: 2; min-width: 300px; }

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  margin-top: 30px;
}
.skill {
  text-align: center;
  transition: transform 0.3s;
}
.skill:hover {
  transform: translateY(-5px);
}
.skill img {
  width: 60px;
  height: 60px;
  margin-bottom: 10px;
}
.skill p { font-weight: 600; }

.skills-section, .learning-section {
  text-align: center;
  max-width: 1200px;
  margin: auto;
  padding: 60px 20px;
}

#skills img, #learning img { filter: none; }

.timeline-grid {
  display: grid;
  grid-template-columns: 1fr 40px 1fr;
  gap: 20px;
  align-items: center;
  max-width: 1000px;
  margin: auto;
}

.timeline-line {
  width: 4px;
  background: #555;
  height: 100%;
  position: relative;
}

.timeline-line::before,
.timeline-line::after {
  content: '';
  width: 20px;
  height: 20px;
  background: #fff;
  border: 3px solid #222;
  border-radius: 50%;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.timeline-line::before { top: 15%; }
.timeline-line::after { top: 65%; }

.timeline-card {
  background: #1e1e1e;
  padding: 20px;
  border-radius: 10px;
  text-align: left;
  border-left: 5px solid;
}

.red { border-color: #ff4b5c; }
.yellow { border-color: #f1c40f; }
.green { border-color: #2ecc71; }
.blue { border-color: #3498db; }
.left-align { grid-column: 1 / 2; justify-self: end; }
.right-align { grid-column: 3 / 4; justify-self: start; }

.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}
.btn {
  padding: 12px 24px;
  border-radius: 25px;
  font-weight: bold;
  color: #fff;
  text-decoration: none;
  transition: transform 0.3s;
}
.btn:hover { transform: translateY(-4px); }
.insta { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743); }
.linkedin { background: #0077b5; }
.github { background: #333; }
.contact-links a img { vertical-align: middle; margin-right: 8px; }

footer {
  background: #1e1e1e;
  text-align: center;
  padding: 20px;
  font-size: 0.9em;
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s ease-out, transform 1s ease-out;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

#timeline h2,
#contact h2 {
  text-align: center;
  margin-bottom: 30px; 
}

@media (max-width: 768px) {
  nav .nav-links {
    position: fixed;
    right: -100%;
    top: 0;
    flex-direction: column;
    background-color: #1e1e1e;
    width: 60%;
    height: 100vh;
    padding-top: 80px;
    text-align: center;
    transition: right 0.4s ease-in-out;
    gap: 40px;
  }

  nav .nav-links.nav-active { right: 0; }
  .hamburger { display: block; z-index: 1001; }

  .hamburger.toggle .line:nth-child(1) { transform: rotate(-45deg) translate(-5px, 6px); }
  .hamburger.toggle .line:nth-child(2) { opacity: 0; }
  .hamburger.toggle .line:nth-child(3) { transform: rotate(45deg) translate(-5px, -6px); }

  .about-container { flex-direction: column; text-align: center; }
  
  .timeline-grid { grid-template-columns: 1fr; }
  .left-align, .right-align { justify-self: center; grid-column: auto; }
  .timeline-line { display: none; }
}