* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background: white;
  color: black;
}

.container {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 25px 0;
  position: relative;
}

.logo img {
  width: 60px;
  height: 60px;
  object-fit: contain;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 25px;
}

.nav-links a {
  text-decoration: none;
  color: black;
  font-weight: bold;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 34px;
  cursor: pointer;
  font-weight: bold;
}

.hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 50px;
  padding: 70px 0;
}

.hero-content {
  flex: 1;
}

.hero-content h1 {
  font-size: 58px;
  margin-bottom: 15px;
}

.hero-content h1 span {
  color: purple;
}

.hero-content p {
  font-size: 20px;
  color: gray;
  line-height: 1.7;
  margin-bottom: 30px;
  max-width: 600px;
}

.hero-btns {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.btn {
  text-decoration: none;
  padding: 13px 28px;
  border-radius: 30px;
  font-weight: bold;
  transition: 0.3s ease;
}

.btn-black {
  background: black;
  color: white;
}

.btn-outline {
  border: 1px solid black;
  color: black;
}

.btn:hover {
  transform: scale(1.06);
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
}

.hero-image img {
  width: 100%;
  max-width: 420px;
  border-radius: 20px;
}

.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  font-size: 46px;
  margin-bottom: 45px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
}

.project-card {
  border: 1px solid lightgray;
  border-radius: 20px;
  padding: 25px;
  min-height: 250px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: left;
  transition: 0.3s ease;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 18px lightgray;
}

.project-card h3 {
  font-size: 22px;
  margin-bottom: 15px;
}

.project-card p {
  color: gray;
  font-size: 17px;
  line-height: 1.7;
}

.project-links {
  margin-top: 25px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-links a {
  text-decoration: none;
  color: black;
  font-weight: bold;
}

.quick-info {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.chip {
  padding: 12px 18px;
  border-radius: 999px;
  font-size: 15px;

  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: 0.25s ease;
}

.chip:active {
  transform: scale(0.95);
}
.frontend {
  background: lightblue;
  color: navy;
}

.backend {
  background: lavender;
  color: darkviolet;
}

.tools {
  background: lightgray;
  color: black;
}

.frontend:hover {
  background: blue;
  color: white;
}

.backend:hover {
  background: purple;
  color: white;
}

.tools:hover {
  background: black;
  color: lightgray;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
}

.cert-card {
  border: 1px solid lightgray;
  border-radius: 20px;
  padding: 25px;
  text-align: left;
  min-height: 180px;
  transition: 0.3s ease;
}

.cert-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 18px lightgray;
}

.cert-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
}

.cert-card p {
  color: gray;
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: 18px;
}

.cert-card a {
  text-decoration: none;
  color: black;
  font-weight: bold;
}

.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  padding-left: 30px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 5px;
  width: 2px;
  height: 100%;
  background-color: #ddd;
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  padding-left: 20px;
}

.timeline-dot {
  position: absolute;
  left: -32px;
  top: 5px;
  width: 14px;
  height: 14px;
  background-color: purple;
  border-radius: 50%;
  border: 2px solid white;
  z-index: 2;
}

.timeline-content h3 {
  font-size: 22px;
  margin-bottom: 10px;
}

.timeline-content h3 span {
  font-size: 16px;
  color: gray;
  font-weight: normal;
}

.timeline-content ul {
  list-style: none;
  color: gray;
  font-size: 17px;
  line-height: 1.8;
}

.timeline-content ul li::before {
  content: '- ';
  margin-right: 5px;
}

.contact-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.contact-btn {
  text-decoration: none;
  color: white;
  font-weight: bold;
  padding: 14px 28px;
  border-radius: 16px;
  transition: 0.3s ease;
}

.contact-btn.email {
  background: black;
}

.contact-btn.call {
  background: purple;
}

.contact-btn.whatsapp {
  background: green;
}

.contact-form {
  max-width: 550px;
  margin: 35px auto 0;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 15px;
  border: 1px solid lightgray;
  border-radius: 14px;
  font-size: 16px;
  outline: none;
}

.contact-form textarea {
  min-height: 130px;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: purple;
}

.contact-form button {
  padding: 15px;
  border: none;
  border-radius: 16px;
  background: black;
  color: white;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
}

#formMessage {
  margin-top: 15px;
  text-align: center;
  color: green;
  font-weight: bold;
}

@media (max-width: 900px) {
  header {
    flex-direction: row;
  }

  .menu-toggle {
    display: block;
    color: black;
  }

  .menu-toggle.active {
    color: purple;
  }

  nav {
    display: none;
    position: absolute;
    top: 85px;
    right: 0;
    width: 220px;
    background: white;
    border: 1px solid lightgray;
    border-radius: 18px;
    box-shadow: 0 8px 18px lightgray;
    padding: 18px;
    z-index: 100;
  }

  nav.active {
    display: block;
  }

  .nav-links {
    flex-direction: column;
    gap: 18px;
  }

  .hero {
    flex-direction: column;
    text-align: center;
  }

  .hero-content h1 {
    font-size: 42px;
  }

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