:root {
  --ubuntu-orange: #e95420;
  --ubuntu-purple: #9b59b6;
  --ubuntu-dark: #2c2c2c;
  --ubuntu-gray: #4a4a4a;
  --ubuntu-light: #f0f0f0;
  --terminal-green: #4af626;

  /* Ubuntu Light Theme Colors */
  --light-bg: #ffffff;
  --light-panel: #f7f7f7;
  --light-border: #d1d1d1;
  --light-text: #3c3c3c;
  --light-accent: #e95420;
  --light-terminal-bg: #ffffff;
  --light-terminal-text: #333333;
}

body {
  font-family: "Ubuntu", sans-serif;
  background: var(--ubuntu-dark);
  color: var(--ubuntu-light);
  margin: 0;
  min-height: 100vh;
  transition: background-color 0.3s, color 0.3s;
}

/* Light Theme Styles */
body.light-theme {
  background: var(--light-bg);
  color: var(--light-text);
}

.light-theme .top-bar {
  background: linear-gradient(to right, var(--light-panel), #ffffff);
  border-bottom: 1px solid var(--ubuntu-orange);
}

.light-theme .window {
  background: var(--light-panel);
  border: 1px solid var(--light-border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.light-theme .window-header {
  background: linear-gradient(to right, var(--light-panel), #ebebeb);
  border-bottom: 1px solid var(--ubuntu-orange);
  color: var(--light-text);
}

.light-theme .window-controls button {
  color: var(--light-text);
}

.light-theme .terminal {
  background: var(--light-terminal-bg);
  color: var(--light-terminal-text);
  border: 1px solid var(--light-border);
}

.light-theme .prompt {
  color: var(--ubuntu-orange);
}

.light-theme .terminal-link {
  color: var(--ubuntu-purple);
}

.light-theme .dock {
  background: rgba(247, 247, 247, 0.9);
  border: 1px solid var(--light-border);
}

.light-theme .dock-icon {
  background: var(--light-panel);
  color: var(--light-text);
  border: 1px solid var(--ubuntu-orange);
}

/* Top Bar - Ubuntu Style */
.top-bar {
  background: linear-gradient(to right, var(--ubuntu-dark), var(--ubuntu-gray));
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--ubuntu-orange);
  font-family: "Ubuntu Mono", monospace;
  position: sticky;
  top: 0;
  z-index: 100;
}

.top-bar .logo {
  color: var(--ubuntu-orange);
  font-weight: bold;
  margin-right: 30px;
}

.desktop-nav a {
  text-decoration: none;
  color: inherit;
  margin-right: 20px;
  cursor: pointer;
  opacity: 0.8;
  transition: 0.3s;
  display: inline-flex;
  align-items: center;
}

.desktop-nav a i {
  margin-right: 5px;
}

.desktop-nav span:hover,
.mobile-nav span:hover {
  opacity: 1;
  color: var(--ubuntu-orange);
}

.mobile-menu-btn {
  display: none;
  cursor: pointer;
  font-size: 1.2rem;
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 46px;
  right: 0;
  background: var(--ubuntu-dark);
  width: 200px;
  z-index: 99;
  box-shadow: -2px 2px 10px rgba(0, 0, 0, 0.3);
  border-left: 1px solid var(--ubuntu-orange);
  border-bottom: 1px solid var(--ubuntu-orange);
}

.light-theme .mobile-nav {
  background: var(--light-panel);
  border-left: 1px solid var(--ubuntu-orange);
  border-bottom: 1px solid var(--ubuntu-orange);
}

.mobile-nav span {
  display: block;
  padding: 15px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  cursor: pointer;
}

.light-theme .mobile-nav span {
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.mobile-nav span i {
  margin-right: 10px;
  width: 20px;
  text-align: center;
}

/* Main Content */
.container {
  max-width: 1200px;
  margin: 40px auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Window Card */
.window {
  width: 100%;
  max-width: 900px;
  margin-bottom: 30px;
  background: var(--ubuntu-gray);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--ubuntu-purple);
  position: relative;
  box-sizing: border-box;
  min-height: 350px;
}

.window-header {
  background: linear-gradient(to right, var(--ubuntu-gray), var(--ubuntu-dark));
  padding: 10px 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--ubuntu-orange);
}

.window-controls button {
  background: none;
  border: none;
  color: var(--ubuntu-light);
  margin-left: 10px;
  cursor: pointer;
  opacity: 0.7;
}

.window-controls button:hover {
  opacity: 1;
}

.window-content {
  padding: 25px;
}

/* Terminal Box */
.terminal {
  background: #1a1a1a;
  color: var(--terminal-green);
  padding: 20px;
  font-family: "Ubuntu Mono", monospace;
  border-radius: 5px;
  border: 1px solid var(--ubuntu-orange);
  margin: 20px 0;
  overflow-x: auto;
  position: relative;
}

.terminal-help {
  position: absolute;
  top: 5px;
  right: 10px;
  font-size: 0.8rem;
  color: #888;
  background: rgba(0, 0, 0, 0.3);
  padding: 3px 8px;
  border-radius: 4px;
  opacity: 0.7;
}

.light-theme .terminal-help {
  background: rgba(0, 0, 0, 0.1);
  color: #777;
}

.prompt {
  color: var(--ubuntu-orange);
}

.terminal-link {
  color: var(--terminal-green);
  text-decoration: none;
  position: relative;
  padding: 2px 0;
}

.terminal-link:hover {
  text-decoration: underline;
}

.ubuntu-orange {
  color: var(--ubuntu-orange);
}

.ubuntu-purple {
  color: var(--ubuntu-purple);
}

.cursor {
  animation: blink 1s infinite;
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

/* Dock */
.dock {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(44, 44, 44, 0.9);
  padding: 10px 20px;
  border-radius: 15px;
  display: flex;
  gap: 15px;
  border: 1px solid var(--ubuntu-purple);
  backdrop-filter: blur(5px);
  z-index: 99;
}

.dock-icon {
  width: 50px;
  height: 50px;
  background: var(--ubuntu-dark);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ubuntu-light);
  cursor: pointer;
  transition: 0.3s;
  border: 1px solid var(--ubuntu-orange);
  font-size: 1.5rem;
}

.dock-icon:hover {
  transform: scale(1.1) translateY(-5px);
  background: var(--ubuntu-orange);
}

.dock-icon.active {
  background: var(--ubuntu-orange);
  transform: scale(1.1);
}

/* Theme switcher */
.theme-switcher {
  position: fixed;
  top: 10px;
  right: 10px;
  background: var(--ubuntu-dark);
  border: 1px solid var(--ubuntu-orange);
  padding: 5px;
  border-radius: 5px;
  z-index: 2000;
  display: flex;
  gap: 5px;
}

.light-theme .theme-switcher {
  background: var(--light-panel);
  border: 1px solid var(--ubuntu-orange);
}

.theme-switcher button {
  background: transparent;
  border: none;
  padding: 5px 10px;
  cursor: pointer;
  color: var(--ubuntu-light);
  border-radius: 3px;
}

.light-theme .theme-switcher button {
  color: var(--light-text);
}

.theme-switcher button:hover {
  background: var(--ubuntu-orange);
  color: white;
}

.bg-pattern {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  z-index: 0;
  pointer-events: none;
}

.light-theme .bg-pattern path {
  stroke: #e0e0e0 !important;
}

/* Window animations */
.window {
  transition: transform 0.3s, box-shadow 0.3s;
}

.window:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

/* Helper classes */
.hidden {
  display: none !important;
}

/* Project Cards */
.view-toggle {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.ubuntu-button {
  background: var(--ubuntu-dark);
  color: white;
  border: 1px solid var(--ubuntu-orange);
  padding: 8px 15px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: "Ubuntu", sans-serif;
}

.light-theme .ubuntu-button {
  background: var(--light-panel);
  color: var(--light-text);
}

.ubuntu-button:hover,
.ubuntu-button.active {
  background: var(--ubuntu-orange);
  color: white;
}

.card-view {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.project-card {
  background: var(--ubuntu-dark);
  border-radius: 8px;
  border-left: 4px solid var(--ubuntu-orange);
  padding: 20px;
  transition: all 0.3s;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.light-theme .project-card {
  background: var(--light-panel);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.project-title {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
}

.project-title i {
  color: var(--ubuntu-orange);
  margin-right: 10px;
  font-size: 1.5rem;
}

.project-description {
  margin-bottom: 15px;
  line-height: 1.5;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 15px;
}

.project-tag {
  background: var(--ubuntu-orange);
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
}

.project-actions {
  display: flex;
  gap: 10px;
  margin-top: auto;
}

.project-btn {
  background: var(--ubuntu-dark);
  color: white;
  border: 1px solid var(--ubuntu-orange);
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  text-decoration: none;
}

.light-theme .project-btn {
  background: var(--light-panel);
  color: var(--light-text);
}

.project-btn:hover {
  background: var(--ubuntu-orange);
  color: white;
}

.project-btn i {
  margin-right: 5px;
}

/* Project Detail Styles */
.back-button {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  margin-bottom: 20px;
  padding: 5px 10px;
  border-radius: 4px;
  transition: all 0.2s;
}

.back-button:hover {
  background: rgba(255, 255, 255, 0.1);
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}
.loading-spinner {
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top: 4px solid var(--ubuntu-orange);
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

#particles-js {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

@media (max-width: 900px) {
  .window {
    max-width: 98vw;
  }
}

@media (max-width: 600px) {
  .window {
    max-width: 98vw;
    margin: 10px 0;
    padding: 0;
  }
  .window-content {
    padding: 10px;
  }
}

.social-links-large a {
  font-size: 2.2rem;
  margin-right: 18px;
  color: var(--ubuntu-orange);
  transition: transform 0.2s, color 0.2s;
  display: inline-block;
}
.social-links-large a:last-child {
  margin-right: 0;
}
.social-links-large a:hover {
  color: var(--ubuntu-purple);
  transform: scale(1.25) rotate(-8deg);
}

.profile-section {
  text-align: center;
}
.profile-img {
  display: inline-block;
}

#wave-hand {
  animation: wave 1.5s infinite;
  transform-origin: 70% 70%;
  display: inline-block;
}
@keyframes wave {
  0% { transform: rotate(0deg);}
  10% { transform: rotate(14deg);}
  20% { transform: rotate(-8deg);}
  30% { transform: rotate(14deg);}
  40% { transform: rotate(-4deg);}
  50% { transform: rotate(10deg);}
  60% { transform: rotate(0deg);}
  100% { transform: rotate(0deg);}
}

/* Project Filter */
.filter-window {
    margin-bottom: 20px;
}

.filter-container {
    padding: 15px;
}

.search-box {
    position: relative;
    margin-bottom: 15px;
}

.search-box i {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ubuntu-orange);
}

.search-box input {
    width: 100%;
    padding: 8px 8px 8px 35px;
    border: 1px solid var(--ubuntu-orange);
    border-radius: 4px;
    background: var(--bg-color);
    color: var(--text-color);
    font-family: 'Ubuntu Mono', monospace;
}

.filter-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-tag {
    padding: 5px 15px;
    border: 1px solid var(--ubuntu-orange);
    border-radius: 15px;
    background: transparent;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-tag:hover, .filter-tag.active {
    background: var(--ubuntu-orange);
    color: var(--bg-color);
}

/* Project Card Improvements */
.project-card {
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.project-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 3px 8px;
    background: var(--ubuntu-orange);
    color: var(--bg-color);
    border-radius: 3px;
    font-size: 0.8em;
}

.project-stats {
    display: flex;
    gap: 15px;
    margin: 10px 0;
    color: var(--text-color);
    font-size: 0.9em;
}

.project-stats span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.project-actions {
    display: flex;
    gap: 10px;
}

.project-btn {
    padding: 8px 15px;
    border: 1px solid var(--ubuntu-orange);
    border-radius: 4px;
    background: transparent;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.project-btn:hover {
    background: var(--ubuntu-orange);
    color: var(--bg-color);
}

/* Project Detail Window */
.project-detail-content {
    padding: 20px;
}

.project-header {
    margin-bottom: 20px;
}

.project-title-large {
    font-size: 2em;
    color: var(--ubuntu-orange);
    margin-bottom: 10px;
}

.project-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.project-gallery img {
    width: 100%;
    border-radius: 4px;
    transition: transform 0.3s ease;
}

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

.project-description-full {
    margin: 20px 0;
    line-height: 1.6;
}

.project-tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px 0;
}

.project-features {
    margin: 20px 0;
}

.project-features ul {
    list-style: none;
    padding: 0;
}

.project-features li {
    margin: 10px 0;
    padding-left: 20px;
    position: relative;
}

.project-features li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--ubuntu-orange);
}

.project-links {
    display: flex;
    gap: 15px;
    margin: 20px 0;
}

.project-testimonials {
    margin: 20px 0;
    padding: 20px;
    background: rgba(255,255,255,0.05);
    border-radius: 4px;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.project-card {
    animation: fadeIn 0.5s ease forwards;
}

.project-card:nth-child(2) { animation-delay: 0.1s; }
.project-card:nth-child(3) { animation-delay: 0.2s; }
.project-card:nth-child(4) { animation-delay: 0.3s; }
.project-card:nth-child(5) { animation-delay: 0.4s; }

/* Responsive Design */
@media (max-width: 768px) {
    .filter-tags {
        justify-content: center;
    }
    
    .project-stats {
        justify-content: center;
    }
    
    .project-actions {
        flex-direction: column;
    }
    
    .project-gallery {
        grid-template-columns: 1fr;
    }
}

.cert-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 18px;
}
.cert-item {
  background: rgba(44,44,44,0.85);
  border-left: 4px solid var(--ubuntu-orange);
  border-radius: 6px;
  padding: 16px 18px 10px 18px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  font-size: 1rem;
  margin-bottom: 0;
}
.cert-item b {
  color: var(--ubuntu-orange);
  font-size: 1.08em;
}
.cert-desc {
  display: block;
  margin-top: 6px;
  color: #bbb;
  font-size: 0.97em;
}
@media (max-width: 600px) {
  .cert-item { padding: 12px 8px 8px 12px; }
}