/* 
* Portfolio Website for Amresh Kumar
* 3D Glassmorphism UI with Maroon + Gold Theme
*/

/* Base Styles and Variables */
:root {
  --primary-color: #2E0F15; /* Deep Maroon background */
  --secondary-color: #3E1F2F; /* Alternative Maroon */
  --accent-color: #FFD700; /* Soft Gold */
  --accent-glow: rgba(255, 215, 0, 0.5); /* Gold glow */
  --text-light: #FFFFFF;
  --text-muted: rgba(255, 255, 255, 0.7);
  --glass-bg: rgba(255, 255, 255, 0.1); /* Glassmorphism background */
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --card-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --font-main: 'Poppins', sans-serif;
  --font-secondary: 'Roboto', sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  line-height: 1.6;
  color: var(--text-light);
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  background-attachment: fixed;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--text-light);
  text-shadow: 0 0 8px var(--accent-glow);
}

ul {
  list-style: none;
}

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

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

.section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1rem;
  color: var(--text-light);
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: var(--accent-color);
  box-shadow: 0 0 10px var(--accent-glow);
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  border-radius: 5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  z-index: -1;
  transform: translateY(100%);
  transition: var(--transition);
}

.btn:hover::before {
  transform: translateY(0);
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--primary-color);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.5);
  transform: translateY(-3px);
  color: var(--primary-color);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--accent-color);
  color: var(--accent-color);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.1);
}

.btn-outline:hover {
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.3);
  transform: translateY(-3px);
  color: var(--accent-color);
}

/* Glass Card Effect */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
}

.glass-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}

/* Header and Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(46, 15, 21, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
}

.header.scrolled {
  padding: 0.5rem 0;
  background: rgba(46, 15, 21, 0.95);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-light);
  position: relative;
  z-index: 1;
}

.logo span {
  color: var(--accent-color);
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.nav-menu {
  display: flex;
  align-items: center;
}

.nav-item {
  margin-left: 2rem;
}

.nav-link {
  color: var(--text-light);
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: var(--transition);
  box-shadow: 0 0 5px var(--accent-glow);
}

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

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

.bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  transition: var(--transition);
  background-color: var(--text-light);
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(255, 215, 0, 0.1) 0%, rgba(46, 15, 21, 0) 70%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hero-text {
  flex: 1;
  padding-right: 2rem;
}

.hero-image {
  flex: 1;
  text-align: center;
  position: relative;
}

.hero-image::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 110%;
  height: 110%;
  background: radial-gradient(circle, var(--accent-glow) 0%, rgba(46, 15, 21, 0) 70%);
  z-index: -1;
  opacity: 0.5;
}

.hero-image img {
  max-width: 350px;
  border-radius: 50%;
  border: 5px solid var(--accent-color);
  box-shadow: 0 0 30px rgba(255, 215, 0, 0.3);
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.5));
  transition: var(--transition);
}

.hero-image:hover img {
  transform: scale(1.02);
  box-shadow: 0 0 40px rgba(255, 215, 0, 0.5);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-light);
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--accent-color);
  margin-bottom: 2rem;
  font-weight: 500;
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

.hero-description {
  margin-bottom: 2rem;
  font-size: 1.1rem;
  color: var(--text-muted);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
}

.social-icons {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--glass-bg);
  color: var(--accent-color);
  transition: var(--transition);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.social-icon:hover {
  background-color: var(--accent-color);
  color: var(--primary-color);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(255, 215, 0, 0.3);
}

/* About Section */
.about {
  position: relative;
}

.about-content {
  display: flex;
  align-items: center;
  gap: 3rem;
}

.about-text {
  flex: 1;
  padding: 2rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
}

.about-text:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}

.about-title {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--accent-color);
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
}

.about-description {
  margin-bottom: 2rem;
  color: var(--text-muted);
}

.about-info {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.info-item {
  display: flex;
  align-items: center;
}

.info-item i {
  margin-right: 0.5rem;
  color: var(--accent-color);
  text-shadow: 0 0 5px var(--accent-glow);
}

/* Education Section */
.education {
  position: relative;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::after {
  content: '';
  position: absolute;
  width: 4px;
  background-color: var(--accent-color);
  box-shadow: 0 0 10px var(--accent-glow);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -2px;
}

.timeline-item {
  padding: 10px 40px;
  position: relative;
  width: 50%;
  box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
  left: 0;
}

.timeline-item:nth-child(even) {
  left: 50%;
}

.timeline-item::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  background-color: var(--primary-color);
  border: 4px solid var(--accent-color);
  box-shadow: 0 0 10px var(--accent-glow);
  border-radius: 50%;
  top: 15px;
  z-index: 1;
}

.timeline-item:nth-child(odd)::after {
  right: -12px;
}

.timeline-item:nth-child(even)::after {
  left: -12px;
}

.timeline-content {
  padding: 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
}

.timeline-content:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}

.timeline-date {
  color: var(--accent-color);
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 5px rgba(255, 215, 0, 0.3);
}

.timeline-title {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
  color: var(--text-light);
}

.timeline-description {
  color: var(--text-muted);
}

/* Skills Section */
.skills {
  position: relative;
}

.skills-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 2rem;
}

.skill-item {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 1.5rem;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
  transform-style: preserve-3d;
  perspective: 1000px;
}

.skill-item:hover {
  transform: translateY(-5px) rotateX(5deg) rotateY(5deg);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}

.skill-icon {
  font-size: 2.5rem;
  color: var(--accent-color);
  margin-bottom: 1rem;
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.skill-title {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--text-light);
}

.skill-description {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  margin-top: 1rem;
  overflow: hidden;
  position: relative;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 5px;
  background-color: rgba(255, 255, 255, 0.2);
  animation: progressLight 2s ease-in-out infinite;
}

@keyframes progressLight {
  0% { left: -5px; }
  100% { left: 100%; }
}

.progress {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-color) 0%, rgba(255, 215, 0, 0.7) 100%);
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
  transition: width 1.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Projects Section */
.projects {
  position: relative;
}

.projects-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.project-item {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
  transform-style: preserve-3d;
  perspective: 1000px;
}

.project-item:hover {
  transform: translateY(-10px) rotateX(5deg);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.project-image {
  height: 200px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}

.project-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(255, 215, 0, 0.2) 0%, rgba(46, 15, 21, 0) 70%);
  z-index: 1;
}

.project-image i {
  position: relative;
  z-index: 2;
  text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.project-content {
  padding: 1.5rem;
}

.project-title {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--text-light);
}

.project-description {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.project-tag {
  background: rgba(255, 215, 0, 0.1);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--accent-color);
  border: 1px solid rgba(255, 215, 0, 0.2);
  transition: var(--transition);
}

.project-tag:hover {
  background: rgba(255, 215, 0, 0.2);
  transform: translateY(-2px);
}

/* Certifications Section */
.certifications {
  position: relative;
}

.certifications-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.certification-item {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 1.5rem;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  transform-style: preserve-3d;
  perspective: 1000px;
}

.certification-item:hover {
  transform: translateY(-5px) rotateY(5deg);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}

.certification-title {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--text-light);
}

.certification-issuer {
  color: var(--accent-color);
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 5px rgba(255, 215, 0, 0.3);
}

.certification-date {
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.certification-description {
  color: var(--text-muted);
  margin-bottom: 1rem;
  flex-grow: 1;
}

.certification-link {
  align-self: flex-start;
}

/* Contact Section */
.contact {
  position: relative;
}

.contact-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 1.5rem;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
}

.contact-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}

.contact-icon {
  font-size: 1.5rem;
  color: var(--accent-color);
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

.contact-text h3 {
  margin-bottom: 0.5rem;
  color: var(--text-light);
}

.contact-text p {
  color: var(--text-muted);
}

.contact-form {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 2rem;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-form:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 500;
  color: var(--text-light);
}

.form-control {
  padding: 0.8rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 5px;
  font-family: var(--font-main);
  color: var(--text-light);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
}

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

/* Footer */
.footer {
  background: linear-gradient(135deg, rgba(46, 15, 21, 0.9) 0%, rgba(62, 31, 47, 0.9) 100%);
  color: var(--text-light);
  padding: 3rem 0;
  text-align: center;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(255, 215, 0, 0.1) 0%, rgba(46, 15, 21, 0) 70%);
  z-index: 1;
}

.footer-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin: 0 auto;
}

.footer-logo {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-logo span {
  color: var(--accent-color);
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.footer-text {
  margin-bottom: 2rem;
  color: var(--text-muted);
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.footer-social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--accent-color);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
}

.footer-social-icon:hover {
  background-color: var(--accent-color);
  color: var(--primary-color);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(255, 215, 0, 0.3);
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* 3D Animation Effects */
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
  100% { transform: translateY(0px); }
}

.float-animation {
  animation: float 5s ease-in-out infinite;
}

/* Responsive Styles */
@media screen and (max-width: 992px) {
  html {
    font-size: 14px;
  }
  
  .hero-content {
    flex-direction: column-reverse;
    text-align: center;
  }
  
  .hero-text {
    padding-right: 0;
    margin-top: 2rem;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .social-icons {
    justify-content: center;
  }
  
  .about-content {
    flex-direction: column;
    text-align: center;
  }
  
  .about-info {
    justify-content: center;
  }
  
  .timeline::after {
    left: 31px;
  }
  
  .timeline-item {
    width: 100%;
    padding-left: 70px;
    padding-right: 25px;
  }
  
  .timeline-item:nth-child(even) {
    left: 0;
  }
  
  .timeline-item::after {
    left: 20px;
  }
  
  .contact-container {
    grid-template-columns: 1fr;
  }
}

@media screen and (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background: rgba(46, 15, 21, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    width: 100%;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    padding: 2rem 0;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-item {
    margin: 1.5rem 0;
  }
  
  .hamburger {
    display: block;
  }
  
  .hamburger.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .section-title h2 {
    font-size: 2rem;
  }
  
  .projects-container,
  .certifications-container,
  .skills-container {
    grid-template-columns: 1fr;
  }
}

@media screen and (max-width: 576px) {
  .hero-image img {
    max-width: 250px;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: 1rem;
  }
  
  .btn {
    width: 100%;
    text-align: center;
  }
}