/* Base Styles */
:root {
  /* Default Theme */
  --primary-color: #6c63ff;
  --secondary-color: #f50057;
  --accent-color: #00d4ff;
  --dark-color: #2d2d2d;
  --light-color: #f4f4f4;
  --bg-color: #ffffff;
  --bg-secondary: #f8f9fa;
  --success-color: #28a745;
  --danger-color: #dc3545;
  --transition: all 0.3s ease;
  --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  --border-radius: 8px;
}

/* Ocean Theme */
[data-theme="ocean"] {
  --primary-color: #0866fa;
  --secondary-color: #0083b0;
  --accent-color: #00d4ff;
  --bg-color: #f0f8ff;
  --bg-secondary: #e6f3ff;
}

/* Forest Theme */
[data-theme="forest"] {
  --primary-color: #11998e;
  --secondary-color: #38ef7d;
  --accent-color: #06ffa5;
  --bg-color: #f0fff4;
  --bg-secondary: #e6ffe6;
}

/* Sunset Theme */
[data-theme="sunset"] {
  --primary-color: #ff6b6b;
  --secondary-color: #ffa500;
  --accent-color: #ff9a9e;
  --bg-color: #fff5f5;
  --bg-secondary: #ffe6e6;
}

/* Dark Theme */
[data-theme="dark"] {
  --primary-color: #3498db;
  --secondary-color: #2ecc71;
  --accent-color: #e74c3c;
  --dark-color: #ecf0f1;
  --light-color: #34495e;
  --bg-color: #1a1a1a;
  --bg-secondary: #2c2c2c;
  --text-color: #ecf0f1;
  --text-secondary: #bdc3c7;
  --nav-gradient: linear-gradient(135deg, #2c3e50 0%, #34495e 50%, #2c3e50 100%);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: "Poppins", sans-serif;
  line-height: 1.6;
  color: var(--dark-color);
  background-color: var(--bg-color);
  overflow-x: hidden;
  transition: background-color 0.3s ease;
}

/* Dark theme text colors */
[data-theme="dark"] body {
  color: var(--text-color);
}

[data-theme="dark"] .hero .subtitle {
  color: var(--text-secondary);
}

[data-theme="dark"] .about-text p {
  color: var(--text-color);
}

[data-theme="dark"] .project-info p {
  color: var(--text-secondary);
}

[data-theme="dark"] .timeline-content h5 {
  color: var(--text-secondary);
}

[data-theme="dark"] .timeline-content p {
  color: var(--text-color);
}

[data-theme="dark"] .skill-name {
  color: var(--text-color);
}

[data-theme="dark"] .more-card p {
  color: var(--text-color);
}

[data-theme="dark"] .more-card ul li {
  color: var(--text-color);
}

[data-theme="dark"] .section-title {
  color: var(--text-color);
}

[data-theme="dark"] .timeline-content h4 {
  color: var(--primary-color);
}

[data-theme="dark"] .skill-category h4 {
  color: var(--primary-color);
}

[data-theme="dark"] .timeline-section h3,
[data-theme="dark"] .skills-section h3 {
  color: var(--primary-color);
}

[data-theme="dark"] .more-card h3 {
  color: var(--text-color);
}

[data-theme="dark"] .project-info h3 {
  color: var(--text-color);
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.section-padding {
  padding: 100px 0;
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 50px;
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--primary-color);
  border-radius: 2px;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--box-shadow);
  z-index: 1000;
  backdrop-filter: blur(10px);
}

/* Dark theme header */
[data-theme="dark"] header {
  background: var(--nav-gradient);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .logo {
  color: var(--primary-color);
}

[data-theme="dark"] .nav-links a {
  color: var(--text-color);
}

[data-theme="dark"] .nav-links a:hover {
  color: var(--primary-color);
}

[data-theme="dark"] .burger div {
  background-color: var(--text-color);
}

[data-theme="dark"] .theme-btn {
  background-color: var(--light-color);
  color: var(--text-color);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  max-width: 1200px;
  margin: 0 auto;
  width: 90%;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
}

.nav-links {
  display: flex;
  justify-content: space-around;
  width: 40%;
}

.nav-links a {
  font-weight: 500;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

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

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

.burger {
  display: none;
  cursor: pointer;
}

.burger div {
  width: 25px;
  height: 3px;
  background-color: var(--dark-color);
  margin: 5px;
  transition: var(--transition);
}

.nav-controls {
  position: relative;
}

.theme-toggle {
  position: relative;
}

.theme-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  background-color: var(--light-color);
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
  color: var(--dark-color);
}

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

.color-picker {
  position: absolute;
  top: 50px;
  right: 0;
  background-color: white;
  border-radius: 10px;
  padding: 15px;
  box-shadow: var(--box-shadow);
  display: none;
  flex-direction: column;
  gap: 10px;
  z-index: 1001;
  min-width: 120px;
}

.color-picker.active {
  display: flex;
}

.color-picker::before {
  content: "";
  position: absolute;
  top: -8px;
  right: 15px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 8px solid white;
}

.color-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  margin: 0 auto;
}

.color-btn:hover,
.color-btn.active {
  border-color: var(--dark-color);
  transform: scale(1.1);
}

.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: linear-gradient(135deg, rgba(108, 99, 255, 0.1) 0%, rgba(245, 0, 87, 0.1) 100%);
  position: relative;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  animation: fadeInUp 1s ease forwards;
}

.hero .subtitle {
  font-size: 1.5rem;
  margin-bottom: 30px;
  color: #666;
  animation: fadeInUp 1s ease 0.2s forwards;
  opacity: 0;
}

.highlight {
  color: var(--primary-color);
  position: relative;
  display: inline-block;
}

.highlight::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 8px;
  background-color: rgba(108, 99, 255, 0.3);
  z-index: -1;
}

.typing-text {
  color: var(--dark-color);
}

/* Dark theme for typing text */
[data-theme="dark"] .typing-text {
  color: var(--text-color);
}

.cta-button {
  display: inline-block;
  padding: 12px 30px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50px;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(108, 99, 255, 0.4);
  transition: var(--transition);
  animation: fadeInUp 1s ease 0.4s forwards;
  opacity: 0;
}

.cta-button:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(108, 99, 255, 0.6);
}

.cta-container {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.resume-cta {
  background-color: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.resume-cta:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(108, 99, 255, 0.6);
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: fadeIn 1s ease 1s forwards;
  opacity: 0;
  cursor: pointer;
}

.scroll-arrow {
  width: 30px;
  height: 30px;
  border: 2px solid var(--primary-color);
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}

.scroll-text {
  margin-top: 15px;
  font-size: 0.9rem;
  color: var(--primary-color);
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* About Section */
.about {
  background-color: var(--bg-secondary);
}

.about-content {
  display: flex;
  align-items: center;
  gap: 50px;
}

.about-img {
  flex: 1;
  display: flex;
  justify-content: center;
}

.img-container {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: var(--box-shadow);
  border: 5px solid white;
  transition: var(--transition);
}

.img-container:hover {
  transform: scale(1.05);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.about-text {
  flex: 1;
}

.about-text p {
  margin-bottom: 20px;
  font-size: 1.1rem;
}

.social-links {
  display: flex;
  gap: 15px;
  margin-top: 30px;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--light-color);
  transition: var(--transition);
}

.social-icon:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-5px);
}

/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.project-card {
  background-color: var(--bg-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.project-img {
  height: 200px;
  overflow: hidden;
}

.project-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

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

.project-info {
  padding: 20px;
}

.project-info h3 {
  margin-bottom: 10px;
  font-size: 1.5rem;
}

.project-info p {
  color: #666;
  margin-bottom: 15px;
}

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

.project-tags span {
  background-color: var(--light-color);
  padding: 5px 10px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

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

.project-link {
  padding: 8px 15px;
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 500;
  background-color: var(--primary-color);
  color: white;
}

.project-link:hover {
  background-color: var(--secondary-color);
}

/* Experience Section */
.experience-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: stretch;
}

.timeline-section,
.skills-section {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.timeline-wrapper,
.skills-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.timeline-section h3,
.skills-section h3 {
  margin-bottom: 30px;
  font-size: 1.6rem;
  text-align: center;
  color: var(--primary-color);
}

.timeline-wrapper {
  position: relative;
}

.timeline-wrapper::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  height: 100%;
  width: 2px;
  background-color: var(--primary-color);
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 35px;
}

.timeline-dot {
  position: absolute;
  left: 15px;
  top: 15px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--primary-color);
  border: 3px solid white;
  box-shadow: 0 0 0 4px rgba(108, 99, 255, 0.3);
}

.timeline-content {
  background-color: var(--bg-color);
  padding: 20px;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.timeline-content:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.timeline-content h4 {
  margin-bottom: 6px;
  color: var(--primary-color);
  font-size: 1.2rem;
}

.timeline-content h5 {
  margin-bottom: 12px;
  font-weight: 500;
  color: #666;
  font-size: 0.9rem;
}

.timeline-content p {
  line-height: 1.6;
  color: var(--dark-color);
  font-size: 0.95rem;
}

.skills-container {
  display: flex;
  flex-direction: column;
  gap: 25px;
  height: 100%;
}

.skill-category {
  background-color: var(--bg-color);
  padding: 25px;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  flex: 1;
}

.skill-category h4 {
  margin-bottom: 20px;
  font-size: 1.1rem;
  color: var(--primary-color);
  text-align: left;
}

.skill-items {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.skill-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.skill-name {
  font-weight: 500;
  color: var(--dark-color);
  font-size: 0.9rem;
}

.skill-percentage {
  font-size: 0.85rem;
  color: var(--primary-color);
  font-weight: 600;
}

.skill-bar {
  height: 6px;
  background-color: var(--light-color);
  border-radius: 3px;
  overflow: hidden;
}

.skill-level {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 3px;
  width: 0;
  transition: width 1.5s ease;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.skill-tag {
  background-color: var(--light-color);
  padding: 8px 14px;
  border-radius: 20px;
  font-weight: 500;
  font-size: 0.85rem;
  transition: var(--transition);
  cursor: pointer;
}

.skill-tag:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

/* Responsive adjustments for experience section */
@media screen and (max-width: 768px) {
  .experience-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .timeline-wrapper::before {
    left: 15px;
  }

  .timeline-item {
    padding-left: 50px;
  }

  .timeline-dot {
    left: 10px;
  }
}

/* More Section */
.more {
  background-color: var(--bg-secondary);
}

.more-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.more-card {
  background-color: var(--bg-color);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  text-align: center;
}

.more-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.more-icon {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 60px;
  height: 60px;
  background-color: rgba(108, 99, 255, 0.1);
  border-radius: 50%;
  margin: 0 auto 20px;
  color: var(--primary-color);
}

.more-card h3 {
  margin-bottom: 15px;
  font-size: 1.5rem;
}

.more-card ul {
  text-align: left;
  padding-left: 20px;
  list-style-type: disc;
}

.more-card ul li {
  margin-bottom: 8px;
}

.education-content {
  text-align: left;
  margin-top: 20px;
}

.degree-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  gap: 15px;
}

.degree-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary-color);
  margin: 0;
  flex: 1;
}

.degree-year {
  background-color: var(--primary-color);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
}

.degree-details {
  margin-bottom: 20px;
}

.detail-row {
  display: flex;
  align-items: center;
  margin-bottom: 8px;
  gap: 10px;
}

.detail-label {
  font-weight: 600;
  color: var(--dark-color);
  font-size: 0.9rem;
  min-width: 110px;
}

.detail-value {
  color: var(--dark-color);
  font-size: 0.9rem;
  font-weight: 500;
}

.university-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary-color);
  padding-top: 15px;
  border-top: 1px solid var(--light-color);
}

/* Dark theme styles for education */
[data-theme="dark"] .degree-title {
  color: var(--primary-color);
}

[data-theme="dark"] .detail-label,
[data-theme="dark"] .detail-value {
  color: var(--text-color);
}

[data-theme="dark"] .university-name {
  color: var(--primary-color);
  border-top-color: var(--light-color);
}

/* Responsive adjustments for education */
@media screen and (max-width: 480px) {
  .degree-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .detail-label {
    min-width: 90px;
  }
}

/* Footer */
footer {
  background-color: var(--dark-color);
  color: white;
  padding: 50px 0 20px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.footer-logo h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: white;
}

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

.footer-social {
  display: flex;
  gap: 15px;
}

.footer-social .social-icon {
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
}

.footer-social .social-icon:hover {
  background-color: var(--primary-color);
}

.copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes scroll {
  0% {
    transform: translateY(0);
    opacity: 1;
  }
  50% {
    transform: translateY(10px);
    opacity: 0.5;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes arrow {
  0% {
    opacity: 0;
    transform: rotate(45deg) translate(-5px, -5px);
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: rotate(45deg) translate(5px, 5px);
  }
}

@keyframes fillBar {
  from {
    width: 0;
  }
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0) rotate(45deg);
  }
  40% {
    transform: translateY(-10px) rotate(45deg);
  }
  60% {
    transform: translateY(-5px) rotate(45deg);
  }
}

@keyframes blink {
  0%,
  50% {
    border-right-color: var(--primary-color);
  }
  51%,
  100% {
    border-right-color: transparent;
  }
}

/* Scroll Animations */
.fade-in {
  opacity: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 1s ease;
}

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

/* Responsive Design */
@media screen and (max-width: 1024px) {
  .nav-links {
    width: 60%;
  }
}

@media screen and (max-width: 768px) {
  .nav-controls {
    position: static;
  }

  .color-picker {
    right: -10px;
  }

  .cta-container {
    flex-direction: column;
    align-items: center;
  }

  .skills-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .timeline-container::before {
    left: 20px;
  }

  .timeline-item {
    padding-left: 60px;
  }

  .timeline-dot {
    left: 15px;
  }

  .nav-links {
    position: absolute;
    right: 0;
    top: 80px;
    background-color: white;
    height: calc(100vh - 80px);
    width: 50%;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 50px;
    transform: translateX(100%);
    transition: transform 0.5s ease-in;
    box-shadow: -5px 0 10px rgba(0, 0, 0, 0.1);
    z-index: 999;
  }

  .nav-links li {
    margin: 20px 0;
  }

  .burger {
    display: block;
  }

  .nav-active {
    transform: translateX(0);
  }

  .toggle .line1 {
    transform: rotate(-45deg) translate(-5px, 6px);
  }

  .toggle .line2 {
    opacity: 0;
  }

  .toggle .line3 {
    transform: rotate(45deg) translate(-5px, -6px);
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero .subtitle {
    font-size: 1.2rem;
  }

  .about-content {
    flex-direction: column;
    text-align: center;
  }

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

  .experience-container {
    grid-template-columns: 1fr;
  }

  .timeline::before {
    left: 15px;
  }

  .footer-content {
    flex-direction: column;
    gap: 20px;
    align-items: center;
    text-align: center;
  }
}

@media screen and (max-width: 480px) {
  .section-title {
    font-size: 2rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .nav-links {
    width: 70%;
  }

  .img-container {
    width: 250px;
    height: 250px;
  }

  .project-links {
    flex-direction: column;
  }

  .project-link {
    text-align: center;
  }
}