:root {
  /* Color Palette - Modern Light Theme (Clean/Academic/Tech) */
  --bg-color: #f8fafc;
  /* Slate 50 */
  --card-bg-color: #ffffff;
  /* White */
  --text-primary: #1e293b;
  /* Slate 800 - DARKER for contrast */
  --text-secondary: #64748b;
  /* Slate 500 */

  /* Accent Colors - Teal/Emerald */
  --accent-primary: #0f766e;
  /* Teal 700 - Darker for better contrast on white */
  --accent-secondary: #14b8a6;
  /* Teal 500 */
  --accent-tertiary: #d97706;
  /* Amber 600 */

  --nav-bg: rgba(255, 255, 255, 0.98);
  /* Higher opacity for navbar */

  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;

  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;

  --transition-speed: 0.2s;
}

/* Base Styles */
html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Nunito', sans-serif;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  /* Subtle gradient */
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  margin: 0;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  margin-top: 0;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

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

a:hover {
  color: var(--accent-secondary);
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: var(--spacing-md) 0;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: none;
  /* No shadow initially for cleaner look */
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  /* Solid white on scroll */
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
  /* Clearer shadow */
  padding: var(--spacing-sm) 0;
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -1px;
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-links li a {
  color: var(--text-primary);
  /* Use primary (dark) color for links */
  font-weight: 700;
  /* Bolder */
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

/* Hero Section */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding-top: 80px;
}

.hero-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: var(--spacing-xl);
}

.hero-content {
  flex: 1;
}

.hero-title {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--accent-primary);
  margin-bottom: var(--spacing-md);
  height: 2rem;
  font-weight: 700;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: var(--spacing-lg);
  font-weight: 500;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  transition: all var(--transition-speed);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent-primary);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  border-color: var(--text-primary);
  /* Darker border */
  color: var(--text-primary);
}

.btn-large {
  font-size: 1.1rem;
  padding: 1rem 2.5rem;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.2);
}

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

.btn-secondary:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

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

.social-links-hero a {
  color: var(--text-secondary);
  transition: all var(--transition-speed);
}

.social-links-hero a:hover {
  color: var(--accent-primary);
  transform: translateY(-3px);
}

.hero-image-wrapper {
  flex: 1;
  display: flex;
  justify-content: center;
  position: relative;
}

.hero-image {
  width: 320px;
  height: 320px;
  border-radius: var(--border-radius-lg);
  object-fit: cover;
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 20px 20px 0px rgba(13, 148, 136, 0.15);
  transition: transform 0.5s ease;
}

.hero-image:hover {
  transform: scale(1.02);
}

/* Scroll Down */
.scroll-down {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  opacity: 0.5;
}

.scroll-down span {
  width: 20px;
  height: 20px;
  border-bottom: 2px solid var(--text-secondary);
  border-right: 2px solid var(--text-secondary);
  transform: rotate(45deg);
  margin: -5px;
  animation: scrollDown 2s infinite;
}

.scroll-down span:nth-child(2) {
  animation-delay: -0.2s;
}

@keyframes scrollDown {
  0% {
    opacity: 0;
    transform: rotate(45deg) translate(-20px, -20px);
  }

  50% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    transform: rotate(45deg) translate(20px, 20px);
  }
}

/* Sections */
.section {
  padding: var(--spacing-xl) 0;
}

.section-heading {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
  display: block;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-primary);
}

.section-heading::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: var(--accent-primary);
  margin: 15px auto 0;
  border-radius: 2px;
}

/* Cards & Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.card {
  background: var(--card-bg-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  border: 1px solid rgba(0, 0, 0, 0.08);
  /* Slightly clearer border */
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  transition: all var(--transition-speed);
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(13, 148, 136, 0.4);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

.card-header h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
  font-size: 1.25rem;
}

.company-link {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.card-date {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  margin-top: 5px;
  font-weight: 500;
}

.card-list {
  list-style: none;
  padding-left: 0;
  color: var(--text-primary);
  /* Darker text for readability */
}

.card-list li {
  margin-bottom: var(--spacing-sm);
  position: relative;
  padding-left: 1.5rem;
  line-height: 1.7;
}

.card-list li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-weight: bold;
}

/* Education Card Specifics */
.education-location,
.education-degree,
.education-meta {
  color: var(--text-secondary);
  margin: 0.2rem 0;
}

.education-degree {
  font-weight: 700;
  color: var(--text-primary);
}

/* Skills - Tag Cloud */
.skills-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  max-width: 800px;
  margin: 0 auto;
}

.skill-category {
  margin-bottom: var(--spacing-md);
}

.skill-category h3 {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  padding-bottom: 5px;
  display: inline-block;
  font-weight: 700;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.skill-tag {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.2s;
}

.skill-tag:hover {
  background: #f0fdfa;
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-2px);
}

/* Contact */
.centered-text {
  text-align: center;
}

.centered-text p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* Footer */
.page-footer {
  text-align: center;
  padding: var(--spacing-lg);
  color: var(--text-secondary);
  font-size: 0.9rem;
  background: #f1f5f9;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

/* Responsive */
@media (max-width: 768px) {
  .hero-container {
    flex-direction: column-reverse;
    text-align: center;
    gap: var(--spacing-lg);
  }

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

  .hero-buttons {
    justify-content: center;
  }

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

  .nav-links {
    display: none;
  }

  .hamburger {
    display: block;
  }

  .hamburger span {
    background: var(--text-primary);
  }
}

/* Fix hamburger for light mode (general) */
.hamburger span {
  background: var(--text-primary);
}

/* Animations */
[data-animate] {
  opacity: 0;
  transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-animate="fade-up"] {
  transform: translateY(30px);
}

[data-animate="fade-left"] {
  transform: translateX(30px);
}

[data-animate="fade-right"] {
  transform: translateX(-30px);
}

[data-animate="scale-up"] {
  transform: scale(0.9);
}

.animate-active {
  opacity: 1 !important;
  transform: translate(0) scale(1) !important;
}