/* Variables CSS */
:root {
  --bg-light: #ffffff;
  --bg-light-secondary: #f5f7fa;
  --text-light: #1a1a1a;
  --text-light-secondary: #666666;
  --border-light: #e0e0e0;

  --bg-dark: #0f1419;
  --bg-dark-secondary: #1a202c;
  --text-dark: #e8e8e8;
  --text-dark-secondary: #a0a0a0;
  --border-dark: #2d3748;

  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --secondary: #ec4899;
  --accent: #06b6d4;

  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;

  --font-sans: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-mono: 'Courier New', monospace;

  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;

  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Proxima Nova",-apple-system,Roboto,Arial,sans-serif,sans-serif;
  line-height: 1.6;
  transition: background-color var(--transition-base), color var(--transition-base);
  padding-top: 70px;
}

/* Font Awesome fallback para iconos no incluidos en Free */
.fa-typescript::before {
    content: '';
    display: inline-block;
    width: 1em;
    height: 1em;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 448 512'%3E%3Cpath fill='currentColor' d='M0 80v352c0 26.5 21.5 48 48 48h352c26.5 0 48-21.5 48-48V80c0-26.5-21.5-48-48-48H48C21.5 32 0 53.5 0 80zm56 260h44v68h48v-68h44v48h48v-92c0-15.5-12.5-28-28-28H132c-15.5 0-28 12.5-28 28v16H56v-48H28v116h28v-48zm224-12c0-15.5 12.5-28 28-28h52c15.5 0 28 12.5 28 28h48c0-42-34-76-76-76h-52c-42 0-76 34-76 76v8c0 42 34 76 76 76h52c15.5 0 28 12.5 28 28h-48c0 15.5-12.5 28-28 28h-52c-15.5 0-28-12.5-28-28h-48c0 42 34 76 76 76h52c42 0 76-34 76-76v-8c0-42-34-76-76-76h-52c-15.5 0-28-12.5-28-28z'/%3E%3C/svg%3E") no-repeat center;
    background-size: contain;
    vertical-align: middle;
}

body.light {
  background-color: var(--bg-light);
  color: var(--text-light);
}

body.dark {
  background-color: var(--bg-dark);
  color: var(--text-dark);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.8);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-base);
}

body.dark .navbar {
  background: rgba(15, 20, 25, 0.8);
  border-bottom-color: var(--border-dark);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-md);
}

.nav-brand .logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
  transition: opacity var(--transition-base);
}

.nav-brand .logo:hover {
  opacity: 0.8;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
}

.nav-link {
  color: inherit;
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: color var(--transition-base);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  transition: width var(--transition-base);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-controls {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.control-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.25rem;
  transition: transform var(--transition-base), color var(--transition-base);
}

body.light .control-btn {
  color: #000;
}

body.dark .control-btn {
  color: #fff;
}

.control-btn:hover {
  transform: scale(1.1);
  color: var(--primary);
}

.lang-btn {
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  color: inherit;
  transition: all var(--transition-base);
}

body.dark .lang-btn {
  border-color: var(--border-dark);
}

.lang-btn:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 2px;
  background: currentColor;
  transition: all var(--transition-base);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

.nav-menu.active {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-light);
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-light);
  animation: slideDown 0.3s ease-out forwards;
  box-shadow: var(--shadow-md);
}

body.dark .nav-menu.active {
  background: var(--bg-dark);
  border-color: var(--border-dark);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl) var(--spacing-md);
  overflow: hidden;
}

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

.hero-title {
  font-size: clamp(2rem, 8vw, 4rem);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: fadeInDown 0.8s ease-out;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-light-secondary);
  margin-bottom: var(--spacing-3xl);
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

body.dark .hero-subtitle {
  color: var(--text-dark-secondary);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-3xl);
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.btn {
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: all var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: white;
}

.hero-scroll {
  animation: fadeInUp 0.8s ease-out 0.6s both;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
}

.hero-scroll i {
  animation: bounce 2s infinite;
}

.hero-decoration {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  overflow: hidden;
}

.shape {
  position: absolute;
  border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  opacity: 0.1;
  animation: float 6s ease-in-out infinite;
}

.shape-1 {
  width: 300px;
  height: 300px;
  top: -100px;
  right: -50px;
  animation-delay: 0s;
}

.shape-2 {
  width: 200px;
  height: 200px;
  bottom: 50px;
  left: -50px;
  animation-delay: 2s;
}

.shape-3 {
  width: 250px;
  height: 250px;
  bottom: -50px;
  right: 100px;
  animation-delay: 4s;
}

.section {
  padding: var(--spacing-3xl) var(--spacing-md);
  content-visibility: auto;
  contain-intrinsic-size: 1px 500px;
}

.hero-title,
.hero-subtitle,
.stat,
.skill-card,
.project-card {
  will-change: transform, opacity;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  position: relative;
  display: inline-block;
  width: 100%;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 2px;
}

.about-section {
  background: linear-gradient(180deg, transparent 0%, var(--bg-light-secondary) 100%);
}

body.dark .about-section {
  background: linear-gradient(180deg, transparent 0%, var(--bg-dark-secondary) 100%);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  margin-top: var(--spacing-3xl);
}

.about-text p {
  margin-bottom: var(--spacing-md);
  color: var(--text-light-secondary);
  font-size: 1.1rem;
  line-height: 1.8;
}

body.dark .about-text p {
  color: var(--text-dark-secondary);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.stat {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  transition: all var(--transition-base);
}

body.dark .stat {
  background: var(--bg-dark-secondary);
  border-color: var(--border-dark);
}

.stat:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.stat h3 {
  font-size: 2rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--spacing-sm);
}

.stat p {
  color: var(--text-light-secondary);
  font-weight: 600;
}

body.dark .stat p {
  color: var(--text-dark-secondary);
}

.skills-filter {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin: var(--spacing-2xl) 0;
  flex-wrap: wrap;
}

.skill-filter-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 2px solid var(--border-light);
  background: transparent;
  color: inherit;
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-base);
}

body.dark .skill-filter-btn {
  border-color: var(--border-dark);
}

.skill-filter-btn:hover,
.skill-filter-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.skill-card {
  padding: var(--spacing-xl);
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all 0.2s ease, opacity 0.2s ease, transform 0.2s ease;
  cursor: pointer;
}

body.dark .skill-card {
  background: var(--bg-dark-secondary);
  border-color: var(--border-dark);
}

.skill-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.skill-card i {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.skill-card h3 {
  margin-bottom: var(--spacing-sm);
  font-size: 1.25rem;
}

.projects-section {
  background: linear-gradient(180deg, transparent 0%, var(--bg-light-secondary) 100%);
}

body.dark .projects-section {
  background: linear-gradient(180deg, transparent 0%, var(--bg-dark-secondary) 100%);
}

.carousel-container {
  position: relative;
  margin-top: var(--spacing-3xl);
}

.carousel-wrapper {
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.carousel-track {
  display: flex;
  transition: transform var(--transition-base);
  gap: var(--spacing-xl);
}

.project-card {
  flex: 0 0 calc(50% - var(--spacing-lg));
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

body.dark .project-card {
  background: var(--bg-dark-secondary);
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

.project-image {
  position: relative;
  width: 100%;
  height: 300px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

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

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-link {
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: all var(--transition-base);
  display: inline-block;
}

.project-link:hover {
  background: var(--primary-light);
  transform: scale(1.05);
}

.project-info {
  padding: var(--spacing-xl);
}

.project-info h3 {
  margin-bottom: var(--spacing-md);
  font-size: 1.5rem;
}

.project-info p {
  color: var(--text-light-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

body.dark .project-info p {
  color: var(--text-dark-secondary);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.project-tags span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--bg-light-secondary);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
}

body.dark .project-tags span {
  background: var(--bg-dark);
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: var(--primary);
  color: white;
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
}

.carousel-btn:hover {
  background: var(--primary-light);
  transform: translateY(-50%) scale(1.1);
}

.carousel-btn.prev {
  left: -25px;
}

.carousel-btn.next {
  right: -25px;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.carousel-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--border-light);
  cursor: pointer;
  border: none;
  padding: 0;
  transition: all var(--transition-base);
}

body.dark .carousel-dot {
  background: var(--border-dark);
}

.carousel-dot.active {
  background: var(--primary);
  transform: scale(1.2);
}

.contact-section {
  background: linear-gradient(180deg, transparent 0%, var(--bg-light-secondary) 100%);
}

body.dark .contact-section {
  background: linear-gradient(180deg, transparent 0%, var(--bg-dark-secondary) 100%);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  margin-top: var(--spacing-2xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.contact-item {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

body.dark .contact-item {
  background: var(--bg-dark-secondary);
}

.contact-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
}

.contact-item i {
  font-size: 1.5rem;
  color: var(--primary);
  margin-top: var(--spacing-xs);
}

.contact-item h3 {
  margin-bottom: var(--spacing-xs);
}

.contact-item p {
  color: var(--text-light-secondary);
}

body.dark .contact-item p {
  color: var(--text-dark-secondary);
}

.contact-item a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

.contact-item a:hover {
  color: var(--primary);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-group label {
  font-weight: 600;
}

.form-group input,
.form-group textarea {
  padding: var(--spacing-md);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg-light);
  color: inherit;
  font-family: inherit;
  transition: all var(--transition-base);
}

body.dark .form-group input,
body.dark .form-group textarea {
  border-color: var(--border-dark);
  background: var(--bg-dark-secondary);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.form-message {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  display: none;
  animation: fadeIn 0.3s ease-out;
}

.form-message.success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border: 1px solid var(--success);
}

.form-message.error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--error);
  border: 1px solid var(--error);
}

.footer {
  background: var(--bg-light-secondary);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  margin-top: var(--spacing-3xl);
  border-top: 1px solid var(--border-light);
}

body.dark .footer {
  background: var(--bg-dark-secondary);
  border-color: var(--border-dark);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
  margin-bottom: var(--spacing-lg);
  font-size: 1.25rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
  color: var(--text-light-secondary);
  text-decoration: none;
  transition: color var(--transition-base);
}

body.dark .footer-section ul li a {
  color: var(--text-dark-secondary);
}

.footer-section ul li a:hover {
  color: var(--primary);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  text-decoration: none;
  transition: all var(--transition-base);
  border: 1px solid var(--border-light);
}

body.dark .social-link {
  background: var(--bg-dark);
  color: var(--text-dark);
  border-color: var(--border-dark);
}

.social-link:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-3px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--border-light);
  color: var(--text-light-secondary);
}

body.dark .footer-bottom {
  border-color: var(--border-dark);
  color: var(--text-dark-secondary);
}

/* Modals */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(5px);
  animation: fadeIn 0.3s ease-out;
}

.modal-content {
  background: var(--bg-light);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  position: relative;
  animation: slideUp 0.3s ease-out;
}

body.dark .modal-content {
  background: var(--bg-dark);
  border: 1px solid var(--border-dark);
}

.modal-large {
  max-width: 1000px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: inherit;
  transition: transform var(--transition-base);
}

.modal-close:hover {
  transform: rotate(90deg);
}

.category-list {
  display: grid;
  gap: var(--spacing-md);
}

.category-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--bg-light-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 600;
  color: inherit;
  transition: all var(--transition-base);
  width: 100%;
  text-align: left;
}

body.dark .category-btn {
  background: var(--bg-dark-secondary);
  border-color: var(--border-dark);
}

.category-btn:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateX(5px);
}

.projects-grid-modal {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  width: 100%;
}

.view-all-container {
  display: flex;
  justify-content: center;
  margin-top: var(--spacing-xl);
}

/* ==================== PROJECT DETAIL VIEW ==================== */
.project-detail-view {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    background: var(--bg-light);
    overflow-y: auto;
    overflow-x: hidden;
    animation: fadeIn 0.25s ease-out;
    display: none;
}

.project-detail-view[style*="display: block"] {
    display: block !important;
}

body.dark .project-detail-view {
    background: var(--bg-dark);
}

.project-detail-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 100px 24px 80px;
}

.project-detail-back {
    margin-bottom: 32px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-base);
    cursor: pointer;
}

.project-detail-back:hover {
    transform: translateX(-4px);
}

.project-detail-loading {
    text-align: center;
    padding: 100px 20px;
    color: var(--text-light-secondary);
}

body.dark .project-detail-loading {
    color: var(--text-dark-secondary);
}

.project-detail-loading i {
    font-size: 3rem;
    margin-bottom: 16px;
    color: var(--primary);
}

.project-detail-error {
    text-align: center;
    padding: 80px 20px;
}

.project-detail-error i {
    font-size: 4rem;
    color: var(--warning);
    margin-bottom: 20px;
}

.project-detail-error h2 {
    margin-bottom: 12px;
    font-size: 2rem;
}

.project-detail-error p {
    color: var(--text-light-secondary);
    margin-bottom: 24px;
}

body.dark .project-detail-error p {
    color: var(--text-dark-secondary);
}

.project-detail-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
    align-items: start;
}

.project-detail-image-main {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    position: relative;
}

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

.project-detail-header {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.project-detail-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.project-detail-description {
    font-size: 1.1rem;
    color: var(--text-light-secondary);
    line-height: 1.7;
}

body.dark .project-detail-description {
    color: var(--text-dark-secondary);
}

.project-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 8px 0;
}

.project-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    background: var(--bg-light-secondary);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    border: 1px solid var(--border-light);
}

body.dark .project-tag {
    background: var(--bg-dark-secondary);
    border-color: var(--border-dark);
    color: var(--primary-light);
}

.project-detail-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 8px;
}

.project-detail-actions .btn {
    padding: 12px 24px;
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent) 0%, #0891b2 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(6, 182, 212, 0.4);
}

.project-detail-section {
    margin-bottom: 48px;
    padding-top: 8px;
}

.project-detail-section-title {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 24px;
    position: relative;
    display: inline-block;
    padding-bottom: 8px;
}

.project-detail-section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 2px;
}

/* Gallery */
.project-detail-gallery {
    width: 100%;
}

.gallery-carousel-container {
    position: relative;
    width: 100%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.gallery-carousel-wrapper {
    overflow: hidden;
    width: 100%;
}

.gallery-carousel-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.gallery-slide {
    flex: 0 0 100%;
    min-width: 0;
}

.gallery-slide img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    display: block;
}

.gallery-carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all var(--transition-base);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    font-size: 1.2rem;
}

body.dark .gallery-carousel-btn {
    background: rgba(30, 41, 59, 0.9);
    color: white;
}

.gallery-carousel-btn:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-50%) scale(1.1);
}

.gallery-carousel-btn.prev {
    left: 16px;
}

.gallery-carousel-btn.next {
    right: 16px;
}

.gallery-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 16px;
}

.gallery-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-light);
    cursor: pointer;
    border: none;
    padding: 0;
    transition: all var(--transition-base);
}

body.dark .gallery-dot {
    background: var(--border-dark);
}

.gallery-dot.active {
    background: var(--primary);
    transform: scale(1.3);
}

/* Long description */
.project-detail-long-description {
    line-height: 1.8;
    color: var(--text-light-secondary);
    font-size: 1.05rem;
}

body.dark .project-detail-long-description {
    color: var(--text-dark-secondary);
}

.project-detail-long-description h1,
.project-detail-long-description h2,
.project-detail-long-description h3 {
    color: var(--text-light);
    margin: 24px 0 12px;
    font-weight: 700;
}

body.dark .project-detail-long-description h1,
body.dark .project-detail-long-description h2,
body.dark .project-detail-long-description h3 {
    color: var(--text-dark);
}

.project-detail-long-description h1 { font-size: 1.6rem; }
.project-detail-long-description h2 { font-size: 1.35rem; }
.project-detail-long-description h3 { font-size: 1.15rem; }

.project-detail-long-description p {
    margin-bottom: 16px;
}

.project-detail-long-description ul {
    margin: 12px 0;
    padding-left: 24px;
}

.project-detail-long-description li {
    margin-bottom: 6px;
}

.project-detail-long-description a {
    color: var(--primary);
    text-decoration: underline;
}

.project-detail-long-description strong {
    color: var(--text-light);
    font-weight: 700;
}

body.dark .project-detail-long-description strong {
    color: var(--text-dark);
}

.project-detail-long-description code {
    background: var(--bg-light-secondary);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
    border: 1px solid var(--border-light);
}

body.dark .project-detail-long-description code {
    background: var(--bg-dark-secondary);
    border-color: var(--border-dark);
}

/* Video embed */
.project-detail-video {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.video-embed-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.video-embed-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Collaborators */
.project-detail-collaborators {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}

.collaborator-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

body.dark .collaborator-card {
    background: var(--bg-dark-secondary);
    border-color: var(--border-dark);
}

.collaborator-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.collaborator-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.collaborator-info {
    flex: 1;
    min-width: 0;
}

.collaborator-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 2px;
}

body.dark .collaborator-info h4 {
    color: var(--text-dark);
}

.collaborator-info p {
    font-size: 0.85rem;
    color: var(--text-light-secondary);
    margin: 0;
}

body.dark .collaborator-info p {
    color: var(--text-dark-secondary);
}

.collaborator-link {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-light-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    text-decoration: none;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

body.dark .collaborator-link {
    background: var(--bg-dark);
}

.collaborator-link:hover {
    background: var(--primary);
    color: white;
    transform: scale(1.1);
}

/* Links grid */
.project-detail-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.detail-link-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 20px;
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--text-light);
    font-weight: 600;
    transition: all var(--transition-base);
}

body.dark .detail-link-card {
    background: var(--bg-dark-secondary);
    border-color: var(--border-dark);
    color: var(--text-dark);
}

.detail-link-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.detail-link-card i {
    font-size: 1.5rem;
    width: 32px;
    text-align: center;
    color: var(--primary);
}

body.dark .detail-link-card i {
    color: var(--primary-light);
}

/* Media Queries for Detail View */
@media (max-width: 768px) {
    .project-detail-hero {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .gallery-slide img {
        height: 300px;
    }

    .project-detail-actions {
        flex-direction: column;
    }

    .project-detail-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .project-detail-links {
        grid-template-columns: 1fr 1fr;
    }

    .project-detail-view {
        padding: 80px 16px 40px;
    }
}

@media (max-width: 480px) {
    .project-detail-links {
        grid-template-columns: 1fr;
    }

    .gallery-slide img {
        height: 220px;
    }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {

  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }

  40% {
    transform: translateY(-10px);
  }

  60% {
    transform: translateY(-5px);
  }
}

@keyframes float {
  0% {
    transform: translate(0, 0);
  }

  50% {
    transform: translate(10px, 20px);
  }

  100% {
    transform: translate(0, 0);
  }
}

/* Media Queries */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .project-card {
    flex: 0 0 100%;
  }

  .carousel-btn.prev {
    left: 5px;
  }

  .carousel-btn.next {
    right: 5px;
  }
}