/* Reset & base */
*,
*::before,
*::after {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #121212;
  color: #ddd;
  line-height: 1.6;
  scroll-behavior: smooth;
  min-height: 100vh;
}

a {
  color: #06f;
  text-decoration: none;
}
a:hover,
a:focus {
  color: #1e90ff;
  outline: none;
}

/* Container */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* HEADER / NAV */
header {
  background-color: #1a1a1a;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.7);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
}

.logo {
  font-weight: 900;
  font-size: 1.8rem;
  color: #06f;
  text-transform: lowercase;
  user-select: none;
}

.logo span {
  color: #1e90ff;
  font-weight: 800;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-links li a {
  font-weight: 600;
  color: #ddd;
  transition: color 0.3s ease;
}

.nav-links li a:hover,
.nav-links li a:focus {
  color: #1e90ff;
  outline: none;
}

/* BURGER MENU */
.burger {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  width: 25px;
  height: 20px;
  justify-content: center;
}

.burger div {
  height: 3px;
  background: #06f;
  border-radius: 3px;
  transition: all 0.3s ease;
}

.burger.toggle .line1 {
  transform: rotate(45deg) translate(5px, 5px);
}

.burger.toggle .line2 {
  opacity: 0;
}

.burger.toggle .line3 {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* HERO SECTION */
.hero {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  padding: 5rem 1.5rem;
  gap: 2rem;
  background: linear-gradient(135deg, #0a0a0a 0%, #1e1e2f 100%);
  color: #eee;
}

.hero-content {
  flex: 1 1 400px;
  max-width: 600px;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.hero-content h1 span {
  color: #06f;
  font-weight: 900;
}

.subtitle {
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
  color: #999;
}

.hero-buttons .btn {
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: 30px;
  margin-right: 1rem;
  background-color: #06f;
  border: none;
  color: #fff;
  cursor: pointer;
  transition: background-color 0.3s ease;
  text-decoration: none;
  display: inline-block;
  user-select: none;
}

.hero-buttons .btn:hover,
.hero-buttons .btn:focus {
  background-color: #1e90ff;
  outline: none;
}

.btn-outline {
  background: none;
  border: 2px solid #06f;
  color: #06f;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.btn-outline:hover,
.btn-outline:focus {
  background-color: #06f;
  color: #fff;
  outline: none;
}

.hero-image {
  flex: 1 1 300px;
  max-width: 350px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 0 50px #06f88f;
}

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

/* SECTIONS */
.section-dark {
  background-color: #1e1e2f;
  padding: 3rem 0;
  color: #ddd;
}

.section-light {
  background-color: #121212;
  padding: 3rem 0;
  color: #eee;
}

/* ABOUT */
.about-content p {
  max-width: 720px;
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  color: #bbb;
}

.skills {
  margin-top: 1.5rem;
}

.skill-tags span {
  display: inline-block;
  background-color: #06f;
  color: white;
  padding: 0.4rem 0.9rem;
  border-radius: 20px;
  margin: 0.2rem 0.4rem 0.2rem 0;
  font-size: 0.85rem;
  user-select: none;
  transition: background-color 0.3s ease;
  cursor: default;
}

.skill-tags span:hover {
  background-color: #1e90ff;
}

/* TECH STACK */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
  text-align: center;
}

.tech-icon {
  font-size: 3rem;
  color: #06f;
  margin-bottom: 0.5rem;
  transition: transform 0.3s ease;
}

.tech-icon:hover {
  transform: scale(1.2);
  color: #1e90ff;
}

/* PROJECTS */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.project-card {
  background-color: #252525;
  border-radius: 15px;
  box-shadow: 0 0 25px #06f9;
  padding: 1rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: default;
  user-select: none;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 40px #06f9;
}

.project-image {
  border-radius: 12px;
  overflow: hidden;
  height: 180px;
  margin-bottom: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.project-image img {
  width: 100%;
  object-fit: cover;
  height: 100%;
  display: block;
}

.project-card h3 {
  margin-bottom: 0.6rem;
  color: #06f;
}

.project-card p {
  font-size: 0.95rem;
  color: #ccc;
  min-height: 50px;
  margin-bottom: 1rem;
}

.project-links {
  display: flex;
  gap: 1rem;
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  border-radius: 20px;
  background-color: #06f;
  color: white;
  border: none;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease;
  text-decoration: none;
  text-align: center;
}

.btn-small:hover,
.btn-small:focus {
  background-color: #1e90ff;
  outline: none;
}

.btn-small.btn-outline {
  background: none;
  border: 2px solid #06f;
  color: #06f;
}

.btn-small.btn-outline:hover,
.btn-small.btn-outline:focus {
  background-color: #06f;
  color: white;
  outline: none;
}

/* BLOG */
.blog-form {
  max-width: 700px;
  margin: 1rem auto 3rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.blog-form input,
.blog-form textarea {
  width: 100%;
  padding: 0.7rem 1rem;
  font-size: 1rem;
  border-radius: 12px;
  border: none;
  background-color: #1e1e2f;
  color: #eee;
  resize: vertical;
  font-family: inherit;
}

.blog-form input::placeholder,
.blog-form textarea::placeholder {
  color: #777;
}

.blog-form button {
  align-self: flex-start;
  padding: 0.8rem 1.5rem;
  font-weight: 600;
  background-color: #06f;
  color: #fff;
  border-radius: 25px;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s ease;
  user-select: none;
}

.blog-form button:hover,
.blog-form button:focus {
  background-color: #1e90ff;
  outline: none;
}

.blog-posts {
  max-width: 720px;
  margin: 0 auto 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.blog-post {
  background-color: #252525;
  border-radius: 15px;
  padding: 1rem 1.5rem;
  box-shadow: 0 0 15px #06f8;
  user-select: none;
  transition: box-shadow 0.3s ease;
}

.blog-post:hover {
  box-shadow: 0 10px 40px #06f8;
}

.blog-post h3 {
  color: #06f;
  margin-bottom: 0.5rem;
}

.blog-post p {
  color: #ccc;
  white-space: pre-wrap;
  font-size: 1rem;
}

/* CONTACT */
.contact-container {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
  justify-content: center;
  max-width: 1100px;
  margin: 0 auto;
}

#contact-form {
  flex: 1 1 350px;
  max-width: 450px;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

#contact-form input,
#contact-form textarea {
  padding: 0.8rem 1.2rem;
  border-radius: 10px;
  border: none;
  background-color: #1e1e2f;
  color: #eee;
  font-family: inherit;
  font-size: 1rem;
  resize: vertical;
}

#contact-form input::placeholder,
#contact-form textarea::placeholder {
  color: #777;
}

#contact-form button {
  padding: 0.8rem 1.8rem;
  font-weight: 700;
  border-radius: 30px;
  background-color: #06f;
  border: none;
  color: white;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease;
}

#contact-form button:hover,
#contact-form button:focus {
  background-color: #1e90ff;
  outline: none;
}

.contact-info {
  flex: 1 1 300px;
  max-width: 350px;
  color: #bbb;
  font-size: 1rem;
  user-select: none;
}

.contact-info h3 {
  margin-bottom: 1rem;
  color: #06f;
}

.contact-info p {
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.social-links a {
  font-size: 1.5rem;
  margin-right: 1rem;
  color: #06f;
  transition: color 0.3s ease;
}

.social-links a:hover,
.social-links a:focus {
  color: #1e90ff;
  outline: none;
}

/* FOOTER */
footer {
  background-color: #121212;
  text-align: center;
  padding: 1rem 0;
  font-size: 0.9rem;
  color: #555;
  border-top: 1px solid #222;
  user-select: none;
}

.footer-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #06f;
  cursor: pointer;
  font-weight: 600;
  user-select: none;
}

.back-to-top:hover,
.back-to-top:focus {
  color: #1e90ff;
  outline: none;
}

/* Fade-in animations */
.fade-in {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    right: 0;
    height: 100vh;
    top: 0;
    background-color: #121212;
    flex-direction: column;
    width: 250px;
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    padding-top: 5rem;
    z-index: 999;
  }

  .nav-links.active {
    transform: translateX(0);
  }

  .burger {
    display: flex;
  }

  .hero {
    flex-direction: column;
    padding: 3rem 1.5rem;
  }

  .hero-content,
  .hero-image {
    max-width: 100%;
    flex: none;
  }

  .contact-container {
    flex-direction: column;
    align-items: center;
  }

  .contact-info,
  #contact-form {
    max-width: 100%;
  }
}