:root {
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --accent-color: #e74c3c;
  --text-color: #333;
  --light-bg: #f9f9f9;
  --dark-bg: #2c3e50;
  --card-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
  --browser-frame-bg: #f2f2f2;
  --browser-controls-bg: #e9e9e9;
  --browser-dot-red: #ff605c;
  --browser-dot-yellow: #ffbd44;
  --browser-dot-green: #00ca4e;
  --loading-color: #3498db;
  --header-gradient-1: #2c3e50;
  --header-gradient-2: #1a3246;
  --header-gradient-3: #0f2a3d;
}

body.dark-theme {
  --text-color: #f9f9f9;
  --light-bg: #1a1a1a;
  --dark-bg: #121212;
  --card-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  --browser-frame-bg: #2a2a2a;
  --browser-controls-bg: #333333;
  --header-gradient-1: #121212;
  --header-gradient-2: #1a1a1a;
  --header-gradient-3: #222222;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--light-bg);
  transition: background-color 0.3s ease, color 0.3s ease;
}

header {
  color: white;
  padding: 2rem 0;
  text-align: center;
  position: relative;
  background: linear-gradient(135deg, var(--header-gradient-1), var(--header-gradient-2), var(--header-gradient-3));
  background-size: 300% 300%;
  animation: gradientFlow 15s ease infinite;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0) 70%),
              radial-gradient(circle at 80% 30%, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0) 70%);
  z-index: 0;
  pointer-events: none;
}

@keyframes gradientFlow {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* Floating elements */
header::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(255, 255, 255, 0.01) 0%, rgba(255, 255, 255, 0) 60px),
    radial-gradient(circle at 85% 25%, rgba(255, 255, 255, 0.01) 0%, rgba(255, 255, 255, 0) 40px),
    radial-gradient(circle at 75% 85%, rgba(255, 255, 255, 0.01) 0%, rgba(255, 255, 255, 0) 70px),
    radial-gradient(circle at 25% 75%, rgba(255, 255, 255, 0.01) 0%, rgba(255, 255, 255, 0) 50px);
  z-index: 0;
  pointer-events: none;
  animation: shimmer 8s infinite ease-in-out;
}

.header-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
}

.particle {
  position: absolute;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  pointer-events: none;
}

.dynamic-particle {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(1px);
  transition: transform 0.3s ease-out;
}

.particle:nth-child(1) {
  top: 20%;
  left: 10%;
  width: 60px;
  height: 60px;
  border-radius: 20%;
  animation: floating 20s infinite linear;
}

.particle:nth-child(2) {
  top: 70%;
  left: 75%;
  width: 40px;
  height: 40px;
  border-radius: 30%;
  animation: floating 15s infinite linear reverse;
}

.particle:nth-child(3) {
  top: 30%;
  left: 80%;
  width: 25px;
  height: 25px;
  border-radius: 4px;
  animation: floating 18s infinite linear;
}

.particle:nth-child(4) {
  top: 60%;
  left: 25%;
  width: 35px;
  height: 35px;
  border-radius: 40%;
  animation: floating 22s infinite linear reverse;
}

.particle:nth-child(5) {
  top: 10%;
  left: 50%;
  width: 20px;
  height: 20px;
  border-radius: 4px;
  transform: rotate(45deg);
  animation: floating 17s infinite linear;
}

@keyframes floating {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  25% {
    transform: translate(10px, 10px) rotate(5deg);
  }
  50% {
    transform: translate(5px, 15px) rotate(0deg);
  }
  75% {
    transform: translate(-5px, 5px) rotate(-5deg);
  }
  100% {
    transform: translate(0, 0) rotate(0deg);
  }
}

@keyframes shimmer {
  0% {
    opacity: 0.3;
  }
  50% {
    opacity: 0.5;
  }
  100% {
    opacity: 0.3;
  }
}

.theme-toggle {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: flex;
  align-items: center;
}

.theme-toggle label {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 26px;
  margin-left: 8px;
}

.theme-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.2);
  transition: .4s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--secondary-color);
}

input:checked + .slider:before {
  transform: translateX(24px);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 15px rgba(255, 255, 255, 0.15);
  animation: titlePulse 4s infinite ease-in-out;
  position: relative;
}

.tagline {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  opacity: 0.9;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
  animation: taglinePulse 4s infinite ease-in-out;
  animation-delay: 1s;
}

@keyframes titlePulse {
  0%, 100% {
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.15);
  }
  50% {
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.25);
  }
}

@keyframes taglinePulse {
  0%, 100% {
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
  }
  50% {
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
  }
}

.header-links {
  margin-top: 1.5rem;
}

.github-link {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  text-decoration: none;
  border-radius: 4px;
  transition: var(--transition);
  font-size: 1rem;
}

.github-link:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.github-link i {
  margin-right: 0.5rem;
}

.container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.intro {
  text-align: center;
  margin-bottom: 2rem;
}

.intro h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
  transition: transform 0.5s ease-out;
}

.intro.animate h2 {
  animation: scaleIn 0.6s ease-out;
}

.intro p {
  max-width: 800px;
  margin: 0 auto;
  opacity: 0.9;
  transition: opacity 0.5s ease-out;
}

.intro.animate p {
  animation: fadeIn 0.8s ease-out 0.2s backwards;
}

@keyframes scaleIn {
  0% {
    opacity: 0;
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes fadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 0.9;
  }
}

.projects-loader {
  position: relative;
  width: 100%;
  height: 4px;
  background-color: rgba(0, 0, 0, 0.05);
  overflow: hidden;
  margin-top: 1rem;
  border-radius: 2px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.projects-loader.active {
  opacity: 1;
}

.projects-loader::after {
  content: '';
  position: absolute;
  width: 30%;
  height: 100%;
  background-color: var(--secondary-color);
  animation: loaderAnimation 1.5s infinite ease-in-out;
  border-radius: 2px;
}

@keyframes loaderAnimation {
  0% {
    left: -30%;
  }
  100% {
    left: 100%;
  }
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
  perspective: 1000px;
  min-height: 100px;
}

.project-card {
  background-color: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), 
              box-shadow 0.4s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  animation: fadeSlideIn 0.6s cubic-bezier(0.3, 0.1, 0.3, 1) backwards;
  transform-origin: center bottom;
  opacity: 1;
}

@keyframes fadeSlideIn {
  0% {
    opacity: 0.3;
    transform: translateY(30px) scale(0.97);
    box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    box-shadow: var(--card-shadow);
  }
}

body.dark-theme .project-card {
  background-color: #2a2a2a;
}

.project-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

body.dark-theme .project-card:hover {
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.project-card.hovering .browser-frame {
  transform: translateY(-5px) scale(1.01);
}

.project-preview {
  position: relative;
  width: 100%;
  padding-top: 70%; /* Browser aspect ratio */
  overflow: hidden;
}

.browser-frame {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--browser-frame-bg);
  border-radius: 8px 8px 0 0;
  overflow: hidden;
  transition: var(--transition);
}

.browser-controls {
  display: flex;
  align-items: center;
  height: 36px;
  padding: 0 12px;
  background-color: var(--browser-controls-bg);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.browser-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: 6px;
  transition: var(--transition);
}

.browser-dot:nth-child(1) {
  background-color: var(--browser-dot-red);
}

.browser-dot:nth-child(2) {
  background-color: var(--browser-dot-yellow);
}

.browser-dot:nth-child(3) {
  background-color: var(--browser-dot-green);
}

.browser-address {
  flex-grow: 1;
  margin-left: 10px;
  padding: 4px 10px;
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: 4px;
  font-size: 0.8rem;
  color: #555;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

body.dark-theme .browser-address {
  background-color: rgba(0, 0, 0, 0.3);
  color: #ccc;
}

.browser-content {
  position: relative;
  width: 100%;
  height: calc(100% - 36px);
  overflow: hidden;
}

.placeholder-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transition: var(--transition);
}

.project-initial {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 3rem;
  font-weight: bold;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.project-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.project-card:hover .project-image {
  transform: scale(1.05);
}

.project-preview::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.05);
  transition: var(--transition);
  z-index: 1;
}

.project-card:hover .project-preview::after {
  background-color: rgba(0, 0, 0, 0);
}

.project-info {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--primary-color);
}

body.dark-theme .project-title {
  color: white;
}

.project-description {
  margin-bottom: 1rem;
  flex-grow: 1;
}

.project-link {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  background-color: var(--secondary-color);
  color: white;
  text-decoration: none;
  border-radius: 4px;
  transition: var(--transition);
  text-align: center;
  margin-top: auto;
}

.project-link:hover {
  background-color: #2980b9;
}

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  z-index: 1000;
  overflow: auto;
}

.modal.loading::after {
  content: "";
  position: fixed;
  top: 50%;
  left: 50%;
  width: 50px;
  height: 50px;
  margin-top: -25px;
  margin-left: -25px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--loading-color);
  animation: spin 1s linear infinite;
  z-index: 1002;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.modal-content {
  position: relative;
  width: 90%;
  max-width: 1200px;
  height: 90vh;
  margin: 2% auto;
  background-color: white;
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

body.dark-theme .modal-content {
  background-color: #2a2a2a;
}

.modal-view-buttons {
  display: flex;
  justify-content: center;
  background-color: var(--browser-controls-bg);
  padding: 10px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.view-button {
  background-color: transparent;
  border: none;
  font-size: 1.2rem;
  margin: 0 10px;
  padding: 5px 10px;
  cursor: pointer;
  transition: var(--transition);
  color: #777;
}

.view-button:hover, .view-button.active {
  color: var(--secondary-color);
}

.modal-project-title {
  text-align: center;
  padding: 10px 0 5px;
  margin: 0;
  color: var(--text-color);
  font-size: 1.5rem;
}

.close-modal {
  position: absolute;
  top: 10px;
  right: 15px;
  color: white;
  font-size: 2rem;
  cursor: pointer;
  z-index: 1001;
}

.modal-iframe-container {
  flex-grow: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  background-color: #f0f0f0;
  transition: background-color 0.3s ease;
}

body.dark-theme .modal-iframe-container {
  background-color: #333;
}

.modal-iframe {
  width: 100%;
  height: 100%;
  border: none;
  transition: width 0.3s ease;
  background-color: white;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

body.dark-theme .modal-iframe {
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

.loading {
  text-align: center;
  padding: 2rem;
  color: #777;
}

/* Reset any hidden styles from loading cards */
.project-card.loading {
  display: block !important;
  opacity: 1 !important;
}

.tech-badges {
  display: flex;
  flex-wrap: wrap;
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.tech-badge {
  display: inline-block;
  padding: 0.3rem 0.6rem;
  margin: 0.25rem;
  background-color: rgba(0, 0, 0, 0.05);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-color);
}

body.dark-theme .tech-badge {
  background-color: rgba(255, 255, 255, 0.1);
  color: #ddd;
}

footer {
  background-color: var(--dark-bg);
  color: white;
  text-align: center;
  padding: 2rem 0;
  margin-top: 3rem;
}

.footer-links {
  margin-bottom: 1.5rem;
}

.footer-links a {
  color: white;
  font-size: 1.5rem;
  margin: 0 0.75rem;
  opacity: 0.8;
  transition: var(--transition);
  text-decoration: none;
}

.footer-links a:hover {
  opacity: 1;
}

footer a {
  color: var(--secondary-color);
  text-decoration: none;
  transition: var(--transition);
}

footer a:hover {
  opacity: 0.8;
}

footer p {
  margin-bottom: 0.75rem;
}

@media (max-width: 768px) {
  .projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  .tagline {
    font-size: 1rem;
  }
  
  .container {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .browser-controls {
    height: 30px;
  }
  
  .project-preview {
    padding-top: 60%;
  }
  
  .browser-dot {
    width: 8px;
    height: 8px;
    margin-right: 4px;
  }
  
  .browser-address {
    font-size: 0.7rem;
  }
}

.modal-tech-badges {
  justify-content: center;
  margin: 0 0 10px;
  padding: 0 15px;
}

.modal-tech-badges .tech-badge {
  background-color: var(--secondary-color);
  color: white;
  opacity: 0.9;
}

body.dark-theme .modal-tech-badges .tech-badge {
  opacity: 0.8;
}