/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #667eea;
  --secondary: #764ba2;
  --accent: #f56565;
  --text-dark: #2d3748;
  --text-light: #718096;
  --bg-light: #ffffff;
  --bg-dark: #1a202c;
  --card-bg: #ffffff;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

body {
  font-family: "Inter", sans-serif;
  color: var(--text-dark);
  background: var(--bg-light);
  line-height: 1.6;
  overflow-x: hidden;
  opacity: 0;
  animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--secondary), var(--primary));
}

/* ===== TYPOGRAPHY ===== */
.section-title,
.hero-title,
.info-card h3,
.skill-category h3,
.project-content h3,
.timeline-content h3,
.contact-details h4,
.service-title {
  font-family: "Playfair Display", serif;
  font-weight: 600;
}

/* ===== HEADER BACKGROUND ===== */
.header-bg {
  position: fixed;
  top: 0;
  right: 0;
  width: 85%;
  height: 70vh;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
  clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
  z-index: -1;
}

/* ===== LOGO STYLES ===== */
.logo a {
  font-family: "Alex Brush", cursive;
  font-size: 2.2rem;
  font-weight: 400;
  text-decoration: none;
  display: flex;
  align-items: center;
  color: #000000;
  transition: var(--transition);
}

.logo a:hover {
  color: #ff3b3b;
  transform: translateY(-2px);
}

.logo .first-name {
  color: #ff3b3b;
  margin-right: 4px;
}

.logo .last-name {
  color: #000000;
}

.logo .dot {
  color: #ff3b3b;
  margin-left: 3px;
}

/* Footer Logo */
.footer-logo .logo {
  font-family: "Alex Brush", cursive;
  font-size: 2.4rem;
  font-weight: 400;
  margin-bottom: 8px;
}

.footer-logo .logo .first-name {
  color: #ff3b3b;
  margin-right: 4px;
}

.footer-logo .logo .last-name {
  color: #111;
}

.footer-logo .logo .dot {
  color: #ff3b3b;
  margin-left: 3px;
}

/* ===== COMPACT NAVIGATION ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0.8rem 5%;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  animation: slideDown 0.4s ease-out;
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

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

.nav-menu {
  display: flex;
  list-style: none;
  gap: 1.5rem;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  padding: 0.5rem 1.2rem;
  border-radius: 40px;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-link {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  font-size: 0.85rem;
  position: relative;
  padding: 0.4rem 0;
  transition: var(--transition);
  letter-spacing: 0.3px;
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 1.5px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transition: var(--transition);
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 100%;
  left: 0;
  transform: translateX(0);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.theme-toggle {
  background: none;
  border: none;
  font-size: 1.1rem;
  color: var(--text-dark);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  background: rgba(0, 0, 0, 0.02);
}

.theme-toggle:hover {
  background: rgba(0, 0, 0, 0.05);
  transform: rotate(15deg);
}

.contact-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border: none;
  border-radius: 40px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.85rem;
  transition: var(--transition);
  box-shadow: 0 3px 8px rgba(102, 126, 234, 0.2);
  position: relative;
  overflow: hidden;
}

.contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(102, 126, 234, 0.3);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.3rem;
  color: var(--text-dark);
  cursor: pointer;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.02);
  transition: var(--transition);
}

.mobile-menu-btn:hover {
  background: rgba(0, 0, 0, 0.05);
}

/* ===== COMPACT MOBILE MENU ===== */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -300px;
  width: 280px;
  height: 100vh;
  background: white;
  box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
  z-index: 1001;
  transition: var(--transition);
  padding: 1.5rem;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #e2e8f0;
}

.close-menu {
  background: none;
  border: none;
  font-size: 1.3rem;
  color: var(--text-dark);
  cursor: pointer;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.02);
  transition: var(--transition);
}

.close-menu:hover {
  background: rgba(0, 0, 0, 0.05);
}

.mobile-nav {
  list-style: none;
}

.mobile-nav-link {
  display: block;
  padding: 0.8rem 0;
  text-decoration: none;
  color: var(--text-dark);
  font-size: 1rem;
  border-bottom: 1px solid #e2e8f0;
  transition: var(--transition);
  opacity: 0;
  transform: translateX(-20px);
}

.mobile-nav-link.slide-in {
  animation: slideInLeft 0.3s ease forwards;
}

@keyframes slideInLeft {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.mobile-nav-link:hover {
  color: var(--primary);
  padding-left: 0.8rem;
}

/* ===== HERO SECTION ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 7rem 5% 5rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease;
}

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

.blur-1,
.blur-2 {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  transition: transform 0.1s linear;
}

.blur-1 {
  width: 300px;
  height: 300px;
  background: var(--primary);
  top: 10%;
  left: 10%;
}

.blur-2 {
  width: 250px;
  height: 250px;
  background: var(--accent);
  bottom: 10%;
  right: 10%;
}

.shape-1,
.shape-2 {
  position: absolute;
  border: 3px solid var(--primary);
  border-radius: 15px;
  transform: rotate(25deg);
  opacity: 0.1;
  transition: transform 0.1s linear;
}

.shape-1 {
  width: 80px;
  height: 80px;
  top: 20%;
  left: 8%;
}

.shape-2 {
  width: 60px;
  height: 60px;
  bottom: 20%;
  left: 18%;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.hero-image {
  width: 180px;
  height: 180px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid white;
  box-shadow: 0 15px 30px rgba(102, 126, 234, 0.25);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-15px) scale(1.05);
  }
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.hero-image:hover img {
  transform: scale(1.1);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  transition: transform 0.1s linear;
}

.hero-greeting {
  font-family: "Dancing Script", cursive;
  font-size: 1.4rem;
  color: #333;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.wave {
  animation: wave 2s infinite;
  display: inline-block;
}

@keyframes wave {
  0%,
  100% {
    transform: rotate(0deg);
  }
  25% {
    transform: rotate(20deg);
  }
  75% {
    transform: rotate(-10deg);
  }
}

.hero-title {
  font-size: 3.2rem;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  animation: fadeInUp 0.8s ease 0.4s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.typewriter {
  display: inline-block;
  position: relative;
}

.type-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.cursor {
  display: inline-block;
  width: 3px;
  height: 1.2em;
  background: var(--primary);
  margin-left: 5px;
  animation: blink 1s infinite;
  vertical-align: middle;
}

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

.hero-description {
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
  animation: fadeInUp 0.8s ease 0.8s both;
}

.btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 1.8rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--text-dark);
  color: white;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transition: var(--transition);
  z-index: -1;
}

.btn-primary:hover::before {
  left: 0;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.15);
}

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

.btn-secondary:hover {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border-color: transparent;
  transform: translateY(-2px);
}

.scroll-down {
  color: var(--text-light);
  text-decoration: none;
  font-size: 0.85rem;
  display: inline-block;
  animation: fadeInUp 0.8s ease 1s both, bounce 2s infinite 2s;
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(8px);
  }
}

/* ===== COMMON SECTION STYLES ===== */
.section {
  padding: 4rem 5%;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.visible {
  opacity: 1;
  transform: translateY(0);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 500;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 0.2s, transform 0.6s ease 0.2s;
}

.section.visible .section-subtitle {
  opacity: 1;
  transform: translateY(0);
}

.section-title {
  text-align: center;
  font-size: 2.8rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 0.4s, transform 0.6s ease 0.4s;
}

.section.visible .section-title {
  opacity: 1;
  transform: translateY(0);
}

.section-description {
  text-align: center;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  font-size: 1.05rem;
  line-height: 1.7;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 0.6s, transform 0.6s ease 0.6s;
}

.section.visible .section-description {
  opacity: 1;
  transform: translateY(0);
}

/* ===== ABOUT SECTION ===== */
.about-content {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-top: 2.5rem;
}

@media (min-width: 1024px) {
  .about-content {
    flex-direction: row;
    align-items: flex-start;
  }
}

.about-image {
  flex: 4;
  max-width: 450px;
  margin: 0 auto;
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease 0.8s, transform 0.6s ease 0.8s;
}

.section.visible .about-image {
  opacity: 1;
  transform: translateX(0);
}

.about-image img {
  width: 100%;
  border-radius: 1.5rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.about-image img:hover {
  transform: translateY(-8px);
}

.about-info {
  flex: 2;
}

.about-text {
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 1.8rem;
  line-height: 1.8;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 1s, transform 0.6s ease 1s;
}

.section.visible .about-text {
  opacity: 1;
  transform: translateY(0);
}

.info-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.2rem;
  margin-bottom: 2.5rem;
}

.info-card {
  background: var(--card-bg);
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  padding: 1.3rem;
  transition: var(--transition);
  cursor: pointer;
  opacity: 0;
  transform: translateY(30px);
  position: relative;
  overflow: hidden;
}

.info-card:nth-child(1) { transition-delay: 1.2s; }
.info-card:nth-child(2) { transition-delay: 1.4s; }
.info-card:nth-child(3) { transition-delay: 1.6s; }

.section.visible .info-card {
  opacity: 1;
  transform: translateY(0);
}

.info-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}

.info-card i {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 0.8rem;
  transition: var(--transition);
}

.info-card:hover i {
  transform: scale(1.2) rotate(10deg);
}

.info-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.info-card p {
  color: var(--text-light);
  font-size: 0.85rem;
  line-height: 1.6;
}

.tools-title {
  font-size: 1.4rem;
  margin-bottom: 1.2rem;
  color: var(--text-dark);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 1.8s, transform 0.6s ease 1.8s;
}

.section.visible .tools-title {
  opacity: 1;
  transform: translateY(0);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
}

@media (min-width: 768px) {
  .tools-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

.tool {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.9rem;
  border: 1px solid #e2e8f0;
  border-radius: 0.75rem;
  transition: var(--transition);
  cursor: pointer;
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
}

.tool:nth-child(1) { transition-delay: 2s; }
.tool:nth-child(2) { transition-delay: 2.1s; }
.tool:nth-child(3) { transition-delay: 2.2s; }
.tool:nth-child(4) { transition-delay: 2.3s; }
.tool:nth-child(5) { transition-delay: 2.4s; }
.tool:nth-child(6) { transition-delay: 2.5s; }

.section.visible .tool {
  opacity: 1;
  transform: translateY(0);
}

.tool:hover {
  transform: translateY(-8px) scale(1.1);
  border-color: var(--primary);
  background: rgba(102, 126, 234, 0.05);
}

.tool i {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 0.4rem;
  transition: var(--transition);
}

.tool:hover i {
  transform: scale(1.2);
}

.tool span {
  font-size: 0.8rem;
  color: var(--text-light);
}

/* ===== SKILLS SECTION ===== */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.skill-category {
  background: var(--card-bg);
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  padding: 1.8rem;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(30px);
}

.skill-category:nth-child(1) { transition-delay: 0.8s; }
.skill-category:nth-child(2) { transition-delay: 1s; }
.skill-category:nth-child(3) { transition-delay: 1.2s; }

.section.visible .skill-category {
  opacity: 1;
  transform: translateY(0);
}

.skill-category:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow);
}

.category-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.2rem;
}

.category-header i {
  font-size: 1.8rem;
  color: var(--primary);
  transition: var(--transition);
}

.skill-category:hover .category-header i {
  transform: rotate(15deg) scale(1.2);
}

.category-header h3 {
  font-size: 1.4rem;
  color: var(--text-dark);
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.skill {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  opacity: 0;
  transform: translateX(-20px);
}

.skill:nth-child(1) { transition-delay: 1.4s; }
.skill:nth-child(2) { transition-delay: 1.5s; }
.skill:nth-child(3) { transition-delay: 1.6s; }
.skill:nth-child(4) { transition-delay: 1.7s; }

.section.visible .skill {
  opacity: 1;
  transform: translateX(0);
}

.skill span:first-child {
  flex: 1;
  font-size: 0.9rem;
  color: var(--text-dark);
}

.skill-bar {
  flex: 2;
  height: 6px;
  background: #e2e8f0;
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.skill-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transform: translateX(-100%);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  100% {
    transform: translateX(100%);
  }
}

.skill-progress {
  height: 100%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 3px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1) 0.5s;
}

.section.visible .skill-progress {
  width: var(--target-width);
}

.percent {
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 600;
  min-width: 35px;
  text-align: right;
}

/* ===== SERVICES SECTION ===== */
.services {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.service-card {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
  border: 1px solid #e2e8f0;
  opacity: 0;
  transform: translateY(20px);
}

.section.visible .service-card {
  opacity: 1;
  transform: translateY(0);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.15);
  border-color: rgba(102, 126, 234, 0.3);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.service-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  transform: scale(1.1);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.service-icon i {
  font-size: 1.2rem;
  color: var(--primary);
  transition: var(--transition);
}

.service-card:hover .service-icon i {
  color: white;
}

.service-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-dark);
}

.service-content {
  margin-top: 1rem;
}

.service-description {
  color: var(--text-light);
  font-size: 0.85rem;
  line-height: 1.5;
  margin-bottom: 1rem;
}

.service-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.service-tech span {
  background: rgba(102, 126, 234, 0.08);
  color: var(--primary);
  padding: 0.25rem 0.7rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid rgba(102, 126, 234, 0.15);
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--transition);
}

.service-link:hover {
  color: var(--secondary);
  gap: 0.7rem;
}

.service-link i {
  font-size: 0.8rem;
  transition: var(--transition);
}

.service-link:hover i {
  transform: translateX(4px);
}

/* ===== PROJECTS SECTION ===== */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.project-card {
  background: white;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  opacity: 0;
  transform: scale(0.95);
}

.project-card:nth-child(1) { transition-delay: 0.8s; }
.project-card:nth-child(2) { transition-delay: 1s; }
.project-card:nth-child(3) { transition-delay: 1.2s; }
.project-card:nth-child(4) { transition-delay: 1.4s; }

.section.visible .project-card {
  opacity: 1;
  transform: scale(1);
}

.project-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.project-image {
  height: 180px;
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 1rem;
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.project-image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
  transform: scale(1.1);
}

.project-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.6));
  z-index: 1;
}

.tech-stack {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

.tech-stack span {
  background: rgba(255, 255, 255, 0.9);
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-dark);
  transition: var(--transition);
}

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

.project-content {
  padding: 1.3rem;
}

.project-content h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
  transition: var(--transition);
}

.project-card:hover .project-content h3 {
  color: var(--primary);
}

.project-content p {
  color: var(--text-light);
  font-size: 0.8rem;
  margin-bottom: 0.8rem;
  line-height: 1.6;
}

.project-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.project-tags span {
  background: rgba(102, 126, 234, 0.1);
  color: var(--primary);
  padding: 0.2rem 0.6rem;
  border-radius: 40px;
  font-size: 0.7rem;
  font-weight: 500;
  transition: var(--transition);
}

.project-card:hover .project-tags span {
  transform: translateY(-3px);
  background: rgba(102, 126, 234, 0.2);
}

.project-link {
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  width: 32px;
  height: 32px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dark);
  text-decoration: none;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  font-size: 0.8rem;
  opacity: 0;
  transform: scale(0);
}

.project-card:hover .project-link {
  opacity: 1;
  transform: scale(1);
}

.project-link:hover {
  background: var(--primary);
  color: white;
  transform: rotate(45deg) scale(1.1);
}

.text-center {
  text-align: center;
  margin-top: 2.5rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 1.6s, transform 0.6s ease 1.6s;
}

.section.visible .text-center {
  opacity: 1;
  transform: translateY(0);
}

.btn-show-more {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.9rem 1.8rem;
  border: 1px solid var(--text-dark);
  border-radius: 50px;
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-show-more:hover {
  background: var(--text-dark);
  color: white;
  transform: translateY(-2px);
}

/* ===== EXPERIENCE SECTION ===== */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 2.5rem auto 0;
  padding-left: 1.5rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
  animation: growHeight 2s ease-out;
}

@keyframes growHeight {
  from {
    height: 0;
  }
  to {
    height: 100%;
  }
}

.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
  padding-left: 1.5rem;
  opacity: 0;
  transform: translateX(-30px);
}

.timeline-item:nth-child(1) { transition-delay: 0.8s; }
.timeline-item:nth-child(2) { transition-delay: 1s; }
.timeline-item:nth-child(3) { transition-delay: 1.2s; }

.section.visible .timeline-item {
  opacity: 1;
  transform: translateX(0);
}

.timeline-dot {
  position: absolute;
  left: -2rem;
  top: 0;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 3px 8px rgba(102, 126, 234, 0.3);
  font-size: 0.9rem;
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0%, 100% {
    box-shadow: 0 3px 8px rgba(102, 126, 234, 0.3);
  }
  50% {
    box-shadow: 0 3px 15px rgba(102, 126, 234, 0.6);
  }
}

.timeline-content {
  background: var(--card-bg);
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  padding: 1.3rem;
  transition: var(--transition);
}

.timeline-content:hover {
  transform: translateX(8px) scale(1.02);
  box-shadow: var(--shadow);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.timeline-header h3 {
  font-size: 1.2rem;
  color: var(--text-dark);
}

.status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: #48bb78;
}

.dot {
  width: 6px;
  height: 6px;
  background: #48bb78;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}

.company {
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 0.2rem;
  font-size: 0.9rem;
}

.date {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 0.8rem;
}

.description {
  color: var(--text-light);
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 0.8rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tags span {
  background: rgba(102, 126, 234, 0.1);
  color: var(--primary);
  padding: 0.2rem 0.6rem;
  border-radius: 40px;
  font-size: 0.7rem;
  font-weight: 500;
  transition: var(--transition);
}

.timeline-content:hover .tags span {
  transform: translateY(-3px);
  background: rgba(102, 126, 234, 0.2);
}

/* ===== CONTACT SECTION ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  max-width: 1000px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 2fr;
  }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.contact-card {
  background: var(--card-bg);
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  padding: 1.3rem;
  display: flex;
  gap: 0.9rem;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(30px);
}

.contact-card:nth-child(1) { transition-delay: 0.8s; }
.contact-card:nth-child(2) { transition-delay: 1s; }
.contact-card:nth-child(3) { transition-delay: 1.2s; }

.section.visible .contact-card {
  opacity: 1;
  transform: translateY(0);
}

.contact-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow);
}

.contact-icon {
  width: 2.8rem;
  height: 2.8rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: var(--transition);
}

.contact-card:hover .contact-icon {
  transform: rotate(15deg) scale(1.1);
}

.contact-details {
  flex: 1;
}

.contact-details h4 {
  font-size: 1.05rem;
  margin-bottom: 0.2rem;
  color: var(--text-dark);
}

.contact-details p {
  color: var(--text-light);
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.btn-copy,
.btn-location {
  padding: 0.4rem 0.8rem;
  border: 1px solid #e2e8f0;
  border-radius: 40px;
  background: white;
  color: var(--text-dark);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: inherit;
  position: relative;
  overflow: hidden;
}

.btn-copy:hover,
.btn-location:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-2px);
}

.socials {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 1.4s, transform 0.6s ease 1.4s;
}

.section.visible .socials {
  opacity: 1;
  transform: translateY(0);
}

.social {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  text-decoration: none;
  color: var(--text-dark);
  transition: var(--transition);
  font-size: 0.9rem;
  position: relative;
  overflow: hidden;
}

.social::before {
  content: '';
  position: absolute;
  left: -100%;
  top: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transition: var(--transition);
  z-index: -1;
}

.social:hover::before { left: 0; }

.social:hover {
  color: white;
  transform: translateX(5px);
}

.social i {
  color: var(--primary);
  width: 18px;
  text-align: center;
  transition: var(--transition);
}

.social:hover i {
  color: white;
  transform: scale(1.2);
}

.contact-form {
  background: var(--card-bg);
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  padding: 1.8rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease 1.6s, transform 0.6s ease 1.6s;
}

.section.visible .contact-form {
  opacity: 1;
  transform: translateY(0);
}

.form-group {
  margin-bottom: 1.2rem;
  position: relative;
}

.form-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
  font-weight: 500;
  font-size: 0.9rem;
}

.form-group label i {
  color: var(--primary);
  transition: var(--transition);
}

.form-group:hover label i { transform: rotate(15deg) scale(1.2); }

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
  background: white;
  color: var(--text-dark);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  transform: translateY(-2px);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.btn-submit {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 1.8rem;
  background: var(--text-dark);
  color: white;
  border: none;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  position: relative;
  overflow: hidden;
}

.btn-submit:hover {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(102, 126, 234, 0.25);
}

/* ===== FOOTER ===== */
.footer {
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  padding: 3rem 5% 1.5rem;
  margin-top: 3rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.footer.visible {
  opacity: 1;
  transform: translateY(0);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-logo { max-width: 380px; }

.footer-logo .tagline {
  font-size: 0.95rem;
  font-family: "Dancing Script", cursive;
  color: #140101;
  margin-bottom: 10px;
  line-height: 1.5;
}

.footer-contact {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-family: "Dancing Script", cursive;
  color: #140101;
  transition: var(--transition);
}

.footer-contact:hover {
  color: #ff3b3b;
  transform: translateX(5px);
}

.footer-contact i { color: #ff3b3b; }

.footer-links h4,
.footer-social h4 {
  font-size: 1.2rem;
  margin-bottom: 0.8rem;
  color: var(--text-dark);
}

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

.footer-links li {
  margin-bottom: 0.4rem;
  position: relative;
  overflow: hidden;
}

.footer-links li::before {
  content: '';
  position: absolute;
  left: -100%;
  top: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transition: var(--transition);
  z-index: -1;
  opacity: 0.1;
}

.footer-links li:hover::before { left: 0; }

.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.9rem;
  display: inline-block;
}

.footer-links a:hover {
  color: var(--primary);
  padding-left: 0.5rem;
  transform: translateX(5px);
}

.social-icons {
  display: flex;
  gap: 0.8rem;
}

.social-icons a {
  width: 2.8rem;
  height: 2.8rem;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dark);
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: var(--transition);
  font-size: 1.1rem;
  position: relative;
  overflow: hidden;
}

.social-icons a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transition: var(--transition);
  z-index: -1;
}

.social-icons a:hover::before { left: 0; }

.social-icons a:hover {
  color: white;
  transform: translateY(-4px) rotate(10deg);
  box-shadow: 0 8px 15px rgba(102, 126, 234, 0.3);
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid #e2e8f0;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  text-align: center;
  color: var(--text-light);
  font-size: 0.85rem;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-links-bottom {
  display: flex;
  gap: 2rem;
  justify-content: center;
}

.footer-links-bottom a {
  color: var(--text-light);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.85rem;
  position: relative;
}

.footer-links-bottom a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transition: var(--transition);
}

.footer-links-bottom a:hover::after { width: 100%; }

.footer-links-bottom a:hover { color: var(--primary); }

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
  z-index: 999;
  font-size: 1.25rem;
  transform: translateY(100px);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-5px) rotate(15deg);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

/* ===== ANIMATION CLASSES ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

.scale-in {
  animation: scaleIn 0.5s ease forwards;
}

@keyframes scaleIn {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.slide-in-right {
  animation: slideInRight 0.5s ease forwards;
}

@keyframes slideInRight {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ===== RIPPLE EFFECTS ===== */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.7);
  transform: scale(0);
  animation: ripple-animation 0.6s linear;
  pointer-events: none;
}

.hover-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(102, 126, 234, 0.1);
  transform: scale(0);
  animation: ripple-animation 0.6s linear;
  pointer-events: none;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}

@keyframes ripple-animation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* ===== LOADING ANIMATION ===== */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-light);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader {
  width: 50px;
  height: 50px;
  border: 3px solid #e2e8f0;
  border-top: 3px solid var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

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

  .mobile-menu-btn {
    display: flex;
  }

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

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

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }

  .info-cards {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .tools-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .social-icons {
    justify-content: center;
  }

  .footer-logo .logo {
    font-size: 2.2rem;
  }

  .logo a {
    font-size: 2.2rem;
  }
  
  .footer-links a:hover {
    padding-left: 0;
    transform: none;
  }
}

/* ===== DARK THEME ===== */
body.dark {
  background: var(--bg-dark);
  color: #e2e8f0;
}

body.dark .nav {
  background: rgba(26, 32, 44, 0.95);
}

body.dark .nav-link {
  color: #e2e8f0;
}

body.dark .theme-toggle {
  color: #e2e8f0;
}

body.dark .mobile-menu {
  background: var(--bg-dark);
}

body.dark .mobile-nav-link {
  color: #e2e8f0;
}

body.dark .hero-greeting,
body.dark .section-title,
body.dark .tools-title,
body.dark .category-header h3,
body.dark .project-content h3,
body.dark .timeline-header h3,
body.dark .contact-details h4,
body.dark .footer-links h4,
body.dark .footer-social h4,
body.dark .service-title {
  color: #e2e8f0;
}

body.dark .info-card,
body.dark .skill-category,
body.dark .service-card,
body.dark .project-card,
body.dark .timeline-content,
body.dark .contact-card,
body.dark .contact-form {
  background: #2d3748;
  border-color: #4a5568;
}

body.dark .btn-secondary {
  border-color: #718096;
  color: #e2e8f0;
}

body.dark .footer {
  background: linear-gradient(135deg, #1a202c, #2d3748);
}

body.dark .footer-logo .tagline,
body.dark .footer-contact {
  color: #a0aec0;
}

body.dark .form-group input,
body.dark .form-group textarea {
  background: #4a5568;
  border-color: #718096;
  color: #e2e8f0;
}

body.dark .skill-bar {
  background: #4a5568;
}

body.dark .tool {
  border-color: #4a5568;
}

body.dark .btn-show-more {
  border-color: #718096;
  color: #e2e8f0;
}

body.dark .social-icons a {
  background: #4a5568;
  color: #e2e8f0;
}

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

body.dark .loader {
  border-color: #4a5568;
  border-top-color: var(--primary);
}

body.dark ::-webkit-scrollbar-track {
  background: #2d3748;
}

body.dark ::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #4a5568, #718096);
}

body.dark .services {
  background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
}

body.dark .service-card {
  border-color: rgba(102, 126, 234, 0.2);
}

body.dark .tech-stack span {
  background: rgba(102, 126, 234, 0.15);
  border-color: rgba(102, 126, 234, 0.3);
}

/* ===== THEME TRANSITION ===== */
.theme-transition * {
  transition: background-color 0.5s ease, color 0.5s ease, border-color 0.5s ease !important;
}

/* ===== PUBLICATION SECTION ===== */
.publication {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.03), rgba(118, 75, 162, 0.03));
}

.publication-card {
  max-width: 800px;
  margin: 2.5rem auto 0;
  padding: 2.5rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(30px);
}

.section.visible .publication-card {
  opacity: 1;
  transform: translateY(0);
}

.publication-card:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 15px 35px rgba(102, 126, 234, 0.15);
  border-color: rgba(102, 126, 234, 0.3);
}

.publication-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.publication-header h3 {
  font-size: 1.6rem;
  color: var(--text-dark);
  line-height: 1.4;
  flex: 1;
  margin-right: 1.5rem;
}

.publication-badge {
  background: linear-gradient(135deg, #48bb78, #38a169);
  color: white;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}

.publication-badge::before {
  content: '✓';
  font-weight: bold;
}

.publication-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-light);
  font-size: 0.95rem;
}

.meta-item i {
  color: var(--primary);
}

.publication-description {
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

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

.publication-links .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
}

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

.publication-links .btn-outline:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
}

.publication-links .btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border: none;
}

.publication-links .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

/* Dark theme styles for publication section */
body.dark .publication {
  background: linear-gradient(135deg, rgba(26, 32, 44, 0.9), rgba(45, 55, 72, 0.9));
}

body.dark .publication-card {
  background: rgba(45, 55, 72, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

body.dark .publication-header h3 {
  color: #e2e8f0;
}

body.dark .publication-description {
  color: #a0aec0;
}

body.dark .meta-item {
  color: #a0aec0;
}

body.dark .publication-meta {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

/* Responsive styles for publication */
@media (max-width: 768px) {
  .publication-header {
    flex-direction: column;
    gap: 1rem;
  }
  
  .publication-header h3 {
    margin-right: 0;
    font-size: 1.4rem;
  }
  
  .publication-meta {
    flex-direction: column;
    gap: 0.8rem;
  }
  
  .publication-card {
    padding: 1.5rem;
  }
  
  .publication-links {
    flex-direction: column;
  }
  
  .publication-links .btn {
    width: 100%;
    justify-content: center;
  }
}