/* === GLOBAL RESETS === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: sans-serif;
  background: #121212;
  color: #f1f1f1;
}

/* === NAVBAR === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: #1e1e1e;
  color: #fff;
  padding: 15px 30px;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* === Logo === */
.logo-flip {
  width: 50px;
  height: 50px;
  perspective: 1000px;
  margin-right: auto;
}

.logo-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

.logo-flip:hover .logo-inner {
  transform: rotateY(180deg);
}

.logo-front,
.logo-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  overflow: hidden;
}

.logo-front img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: invert(100%);
  border-radius: 50%;
}

.logo-back {
  background-color: #00bcd4;
  color: #121212;
  font-weight: bold;
  font-size: 1.1rem;
  transform: rotateY(180deg);
}

/* === Nav Links (centered) === */
.nav-links-wrapper {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 20px;
  list-style: none;
}

.nav-links-wrapper a {
  text-decoration: none;
  color: #fff;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links-wrapper a:hover {
  color: #00bcd4;
}

/* === Right buttons (theme toggle + hamburger) === */
.nav-right {
  display: flex;
  align-items: center;
  gap: 15px;
}

/* === Theme toggle button === */
#theme-toggle {
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.3s ease;
}

#theme-toggle:hover {
  color: #00bcd4;
}

/* === Hamburger menu (hidden by default) === */
.hamburger {
  display: none;
  font-size: 1.8rem;
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  transition: color 0.3s ease;
}

.hamburger:hover {
  color: #00bcd4;
}

/* === Mobile styles === */
@media (max-width: 768px) {
  .nav-links-wrapper {
    position: absolute;
    top: 70px;
    right: 30px;
    background: #1e1e1e;
    flex-direction: column;
    gap: 10px;
    padding: 20px;
    border-radius: 8px;
    display: none;
    z-index: 999;
  }

  .nav-links-wrapper.active {
    display: flex;
  }

  .hamburger {
    display: block;
  }
}

/* === HERO SECTION === */
.hero {
  background-image: url("https://images.unsplash.com/photo-1504384308090-c894fdcc538d");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  color: white;
  padding-top: 80px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 20px;
  margin: 0 auto;
  text-align: center;
}

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

.hero h2 {
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.btn {
  background-color: #00bcd4;
  color: #ffffff;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.3s ease;
}

.btn:hover {
  background-color: #00acc1;
}

/* Ensure GitHub + Website buttons are side by side */
.project-card .btn-group {
  display: flex;
  gap: 10px;
  margin: 0 20px 20px;
}

/* === ABOUT SECTION === */
.about {
  padding: 60px 20px;
  background-color: #1e1e1e;
  color: #f1f1f1;
}

.about-container {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}

.about-img {
  width: 250px;
  height: 250px;
  object-fit: cover;
  object-position: 50% 15%;
  border-radius: 50%;
  border: 4px solid #333;
}

.about-text {
  max-width: 500px;
}

.about-text h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.about-text p {
  font-size: 1.1rem;
  line-height: 1.6;
}

/* === PROJECTS SECTION === */
.projects {
  padding: 80px 20px 60px;
  background: #121212;
  color: #f1f1f1;
}

.projects h2 {
  text-align: center;
  margin-bottom: 40px;
  font-size: 2rem;
}

.projects-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.project-card {
  background: #1e1e1e;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
}

.project-card:hover {
  transform: translateY(-6px);
}

.project-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.project-card h3 {
  margin: 20px;
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

.project-card p {
  margin: 0 20px 1.5rem;
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Project buttons */
.project-card .btn {
  flex: 1;
  text-align: center;
}

/* === RESPONSIVE BREAKPOINTS === */
@media (max-width: 1024px) {
  .projects-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .projects-container {
    grid-template-columns: 1fr;
  }
}

/* === FOOTER / CONTACT === */
footer {
  background: #1e1e1e;
  color: #f1f1f1;
  padding: 60px 20px;
}

.footer-container {
  max-width: 800px;
  margin: 0 auto;
}

footer h2 {
  text-align: center;
  margin-bottom: 40px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

form label {
  font-size: 0.95rem;
}

form input,
form textarea {
  padding: 12px 15px;
  border: 1px solid #333;
  border-radius: 4px;
  background: #121212;
  color: #f1f1f1;
  font-size: 1rem;
  resize: vertical;
}

form input:focus,
form textarea:focus {
  outline: none;
  border-color: #00bcd4;
}

form .btn {
  align-self: flex-start;
}

.form-msg {
  font-size: 0.9rem;
  height: 1.2rem;
}

/* === BACK TO TOP BUTTON === */
#backToTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 100;
  display: none;
  background-color: #00bcd4;
  color: white;
  border: none;
  padding: 12px 16px;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
  transition: opacity 0.3s ease;
}

#backToTop:hover {
  background-color: #00acc1;
}

/* === LIGHT THEME OVERRIDES === */
body.light-mode {
  background-color: #f5f5f5;
  color: #121212;
}

body.light-mode .navbar {
  background-color: #ffffff;
  color: #000000;
}

body.light-mode .nav-links a {
  color: #000000;
}

body.light-mode .nav-links a:hover {
  color: #00bcd4;
}

body.light-mode .nav-links-wrapper a {
  color: #121212;
}

body.light-mode .nav-links-wrapper a:hover {
  color: #00bcd4;
}

body.light-mode .hero,
body.light-mode .about,
body.light-mode .projects,
body.light-mode footer {
  background-color: #ffffff;
  color: #121212;
}

body.light-mode .project-card {
  background: #eeeeee;
  color: #121212;
}

body.light-mode .btn {
  background-color: #00bcd4;
  color: white;
}

body.light-mode #backToTop {
  background-color: #00bcd4;
  color: white;
}

body.light-mode .social-links a {
  color: #121212;
}

body.light-mode .social-links a:hover {
  color: #00bcd4;
  text-shadow: 0 0 8px #00bcd4, 0 0 12px #00bcd4;
}

/* === SCROLL-REVEAL === */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.show {
  opacity: 1;
  transform: translateY(0);
}

/* === SOCIAL MEDIA ICONS === */
.social-links {
  margin-top: 40px;
  text-align: center;
}

.social-links a {
  display: inline-block;
  margin: 0 10px;
  font-size: 1.8rem;
  color: #f1f1f1;
  transition: color 0.3s ease, transform 0.3s ease;
}

.social-links a:hover {
  color: #00bcd4;
  text-shadow: 0 0 8px #00bcd4, 0 0 12px #00bcd4;
  animation: shake 0.6s ease-in-out;
}

@keyframes shake {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  20% {
    transform: translate(-1px, 1px) rotate(-2deg);
  }
  40% {
    transform: translate(-1px, -1px) rotate(2deg);
  }
  60% {
    transform: translate(1px, 1px) rotate(0deg);
  }
  80% {
    transform: translate(1px, -1px) rotate(2deg);
  }
  100% {
    transform: translate(0, 0) rotate(-2deg);
  }
}

/* === GALLERY GRID & MODAL === */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
}

.gallery-grid img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.3s ease;
  display: block;
}

.gallery-grid img:hover {
  transform: scale(1.05);
}

.modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  justify-content: center;
  align-items: center;
}

.modal-img {
  max-width: 90%;
  max-height: 90%;
  border-radius: 8px;
}

.close-btn {
  position: absolute;
  top: 20px;
  right: 35px;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
}