/* ===================================
   CSS Variables & Root Styles
   =================================== */

:root {
  /* Color Palette - Based on Design Document */
  --primary-bg: #2F4F4F;        /* Deep slate gray */
  --secondary-bg: #222222;      /* Muted black */
  --accent-color: #0892D0;      /* Electric blue */
  --text-primary: #F5F5F5;      /* Off-white */
  --text-secondary: #D3D3D3;    /* Light gray */
  --text-muted: #999999;        /* Muted gray */
  
  /* Additional Colors */
  --surface-color: #1a1a1a;     /* Darker surface */
  --border-color: #404040;      /* Border color */
  --hover-color: #0a7bb8;       /* Darker accent for hover */
  --success-color: #28a745;     /* Success green */
  --warning-color: #ffc107;     /* Warning yellow */
  --error-color: #dc3545;       /* Error red */
  
  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-subheading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-accent: 'Lato', sans-serif;
  
  /* Font Sizes */
  --fs-xs: 0.75rem;    /* 12px */
  --fs-sm: 0.875rem;   /* 14px */
  --fs-base: 1rem;     /* 16px */
  --fs-lg: 1.125rem;   /* 18px */
  --fs-xl: 1.25rem;    /* 20px */
  --fs-2xl: 1.5rem;    /* 24px */
  --fs-3xl: 1.875rem;  /* 30px */
  --fs-4xl: 2.25rem;   /* 36px */
  --fs-5xl: 3rem;      /* 48px */
  --fs-6xl: 3.75rem;   /* 60px */
  
  /* Spacing */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */
  --spacing-4xl: 6rem;     /* 96px */
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* ===================================
   Base Styles
   =================================== */

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

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

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--primary-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Loading Screen
   =================================== */

.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

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

.loading-content {
  text-align: center;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid var(--border-color);
  border-top: 3px solid var(--accent-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--spacing-md);
}

.loading-text {
  color: var(--text-secondary);
  font-family: var(--font-subheading);
  font-weight: 300;
}

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

/* ===================================
   Interactive Background
   =================================== */

.interactive-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

#background-canvas {
  width: 100%;
  height: 100%;
  opacity: 0.3;
}

/* ===================================
   Navigation
   =================================== */

.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(34, 34, 34, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: var(--z-fixed);
  transition: all var(--transition-normal);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-xl);
  color: var(--accent-color);
}

.brand-text {
  display: inline-block;
  transition: transform var(--transition-fast);
}

.brand-text:hover {
  transform: scale(1.05);
}

.language-switcher {
  display: flex;
  gap: var(--spacing-xs);
  margin-right: var(--spacing-lg);
}

.lang-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

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

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--fs-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-color);
  background: rgba(8, 146, 208, 0.1);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: all var(--transition-fast);
  transform: translateX(-50%);
}

.nav-link.active::after {
  width: 80%;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  margin: 3px 0;
  transition: all var(--transition-fast);
  border-radius: var(--radius-sm);
}

/* ===================================
   Main Content
   =================================== */

.main-content {
  margin-top: 70px;
}

/* ===================================
   Section Styles
   =================================== */

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-4xl) var(--spacing-lg);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--fs-4xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  width: 60px;
  height: 3px;
  background: var(--accent-color);
  transform: translateX(-50%);
  border-radius: var(--radius-full);
}

.section-subtitle {
  font-family: var(--font-subheading);
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  font-weight: 300;
}

/* ===================================
   Hero Section
   =================================== */

.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
  position: relative;
  overflow: hidden;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  width: 100%;
}

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

.hero-text {
  animation: fadeInUp 1s ease-out;
}

.hero-name {
  font-family: var(--font-heading);
  font-size: var(--fs-6xl);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
}

.name-first {
  display: block;
  color: var(--text-primary);
}

.name-last {
  display: block;
  color: var(--accent-color);
  background: linear-gradient(45deg, var(--accent-color), #00bcd4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-family: var(--font-subheading);
  font-size: var(--fs-2xl);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: var(--fs-lg);
  color: var(--text-muted);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: center;
  animation: fadeInRight 1s ease-out 0.3s both;
}

.profile-card {
  background: var(--surface-color);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  max-width: 350px;
  width: 100%;
}

.profile-image {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.profile-placeholder {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-color), #00bcd4);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: white;
  box-shadow: var(--shadow-lg);
}

.profile-info {
  space-y: var(--spacing-md);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) 0;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

.contact-icon {
  font-size: var(--fs-lg);
  width: 24px;
  text-align: center;
}

/* ===================================
   Buttons
   =================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-lg);
  font-family: var(--font-subheading);
  font-weight: 600;
  font-size: var(--fs-base);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--accent-color);
  color: white;
  box-shadow: var(--shadow-md);
}

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

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

.btn-secondary:hover {
  background: var(--accent-color);
  color: white;
  transform: translateY(-2px);
}

/* ===================================
   About Section
   =================================== */

.about-section {
  background: var(--secondary-bg);
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.about-text {
  font-size: var(--fs-lg);
  line-height: 1.8;
}

.about-description {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
}

.about-highlights {
  display: grid;
  gap: var(--spacing-xl);
}

.highlight-item {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--surface-color);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.highlight-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-color);
}

.highlight-number {
  font-family: var(--font-heading);
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: var(--spacing-sm);
}

.highlight-text {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===================================
   Experience Section
   =================================== */

.experience-section {
  background: var(--primary-bg);
}

.experience-timeline {
  position: relative;
  padding-left: var(--spacing-2xl);
}

.experience-timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--accent-color);
  border-radius: var(--radius-full);
}

.experience-item {
  position: relative;
  margin-bottom: var(--spacing-3xl);
  padding-left: var(--spacing-2xl);
}

.experience-item::before {
  content: '';
  position: absolute;
  left: -var(--spacing-lg);
  top: var(--spacing-md);
  width: 12px;
  height: 12px;
  background: var(--accent-color);
  border-radius: 50%;
  border: 3px solid var(--primary-bg);
  box-shadow: 0 0 0 3px var(--accent-color);
}

.experience-card {
  background: var(--surface-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.experience-card:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-color);
}

.experience-header {
  margin-bottom: var(--spacing-lg);
}

.experience-company {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: var(--spacing-xs);
}

.experience-position {
  font-family: var(--font-subheading);
  font-size: var(--fs-lg);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.experience-meta {
  display: flex;
  gap: var(--spacing-lg);
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-bottom: var(--spacing-lg);
}

.experience-description ul {
  list-style: none;
  padding: 0;
}

.experience-description li {
  position: relative;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

.experience-description li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: bold;
}

/* ===================================
   Skills Section
   =================================== */

.skills-section {
  background: var(--secondary-bg);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.skill-category {
  background: var(--surface-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.skill-category:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-color);
}

.skill-category-title {
  font-family: var(--font-subheading);
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.skill-items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.skill-item {
  background: var(--primary-bg);
  color: var(--text-secondary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: 500;
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.skill-item:hover {
  background: var(--accent-color);
  color: white;
  transform: scale(1.05);
}

/* ===================================
   Education Section
   =================================== */

.education-section {
  background: var(--primary-bg);
}

.education-content {
  display: grid;
  gap: var(--spacing-xl);
}

.education-item {
  background: var(--surface-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.education-item:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-color);
}

.education-icon {
  width: 60px;
  height: 60px;
  background: var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xl);
  color: white;
  flex-shrink: 0;
}

.education-details h3 {
  font-family: var(--font-subheading);
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.education-details p {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
}

/* ===================================
   Contact Section
   =================================== */

.contact-section {
  background: var(--secondary-bg);
}

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

.contact-info {
  display: grid;
  gap: var(--spacing-lg);
}

.contact-card {
  background: var(--surface-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  transition: all var(--transition-normal);
}

.contact-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-color);
}

.contact-card .contact-icon {
  font-size: var(--fs-2xl);
  width: 50px;
  text-align: center;
}

.contact-details h3 {
  font-family: var(--font-subheading);
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.contact-details a,
.contact-details span {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.contact-details a:hover {
  color: var(--accent-color);
}

/* ===================================
   Form Styles
   =================================== */

.contact-form {
  background: var(--surface-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  border: 1px solid var(--border-color);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  font-family: var(--font-subheading);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--primary-bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(8, 146, 208, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* ===================================
   Footer
   =================================== */

.main-footer {
  background: var(--surface-color);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-2xl) 0;
}

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

.footer-content {
  text-align: center;
}

.footer-text {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  margin-bottom: var(--spacing-md);
}

.footer-additional {
  color: var(--text-muted);
  font-size: var(--fs-xs);
}

/* ===================================
   Animations
   =================================== */

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

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

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

/* ===================================
   Responsive Design
   =================================== */

/* Tablet Styles */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    text-align: center;
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
  
  .section-container {
    padding: var(--spacing-3xl) var(--spacing-lg);
  }
  
  .hero-name {
    font-size: var(--fs-5xl);
  }
  
  .section-title {
    font-size: var(--fs-3xl);
  }
}

/* Mobile Styles */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--secondary-bg);
    flex-direction: column;
    padding: var(--spacing-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    border-bottom: 1px solid var(--border-color);
  }
  
  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .language-switcher {
    margin-right: var(--spacing-md);
  }
  
  .hero-name {
    font-size: var(--fs-4xl);
  }
  
  .hero-title {
    font-size: var(--fs-xl);
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .section-container {
    padding: var(--spacing-2xl) var(--spacing-md);
  }
  
  .section-title {
    font-size: var(--fs-2xl);
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
  }
  
  .experience-timeline {
    padding-left: var(--spacing-lg);
  }
  
  .experience-item {
    padding-left: var(--spacing-lg);
  }
  
  .about-highlights {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
  
  .profile-card {
    max-width: 300px;
  }
  
  .contact-card {
    flex-direction: column;
    text-align: center;
  }
  
  .education-item {
    flex-direction: column;
    text-align: center;
  }
}

/* Small Mobile Styles */
@media (max-width: 480px) {
  .nav-container {
    padding: 0 var(--spacing-md);
  }
  
  .hero-name {
    font-size: var(--fs-3xl);
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 250px;
  }
  
  .section-container {
    padding: var(--spacing-xl) var(--spacing-sm);
  }
  
  .profile-card {
    padding: var(--spacing-lg);
  }
  
  .profile-placeholder {
    width: 100px;
    height: 100px;
    font-size: var(--fs-xl);
  }
}

/* ===================================
   Utility Classes
   =================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.hidden { display: none !important; }
.visible { display: block !important; }

.fade-in { animation: fadeIn 0.5s ease-in-out; }
.fade-in-up { animation: fadeInUp 0.5s ease-in-out; }
.fade-in-left { animation: fadeInLeft 0.5s ease-in-out; }
.fade-in-right { animation: fadeInRight 0.5s ease-in-out; }

/* ===================================
   Print Styles
   =================================== */

@media print {
  .main-nav,
  .mobile-menu-toggle,
  .interactive-background,
  .loading-screen {
    display: none !important;
  }
  
  .main-content {
    margin-top: 0;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
  
  .section-container {
    padding: var(--spacing-lg) 0;
  }
}


/* Cultural Link Styling */
.cultural-link {
    background: linear-gradient(45deg, #FF6B35, #F7931E) !important;
    color: white !important;
    border-radius: 20px !important;
    padding: 0.5rem 1rem !important;
    margin-left: 1rem !important;
    transition: all 0.3s ease !important;
}

.cultural-link:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 5px 15px rgba(255, 107, 53, 0.3) !important;
}

@media (max-width: 768px) {
    .cultural-link {
        margin-left: 0 !important;
        margin-top: 0.5rem !important;
    }
}



/* PDF Export Button Styling */
.btn-export {
    background: linear-gradient(45deg, #28a745, #20c997);
    color: white;
    border: 2px solid #28a745;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-export:hover {
    background: linear-gradient(45deg, #20c997, #28a745);
    border-color: #20c997;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(40, 167, 69, 0.3);
}

.btn-export:active {
    transform: translateY(0);
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.2);
}

.btn-export::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-export:hover::before {
    left: 100%;
}

/* PDF Export Loading State */
.btn-export.loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn-export.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Mobile adjustments for export button */
@media (max-width: 768px) {
    .hero-actions {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn-export {
        width: 100%;
        justify-content: center;
    }
}