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

:root {
  /* Colors */
  --primary-color: #667eea;
  --primary-dark: #5a67d8;
  --secondary-color: #764ba2;
  --accent-color: #f093fb;
  --success-color: #48bb78;
  --warning-color: #ed8936;
  --error-color: #f56565;

  /* Text Colors */
  --text-primary: #1a202c;
  --text-secondary: #2d3748;
  --text-muted: #2d3748;
  --text-light: #4a5568;

  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f7fafc;
  --bg-tertiary: #edf2f7;
  --bg-dark: #1a202c;
  --bg-card: #ffffff;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);

  /* Typography */
  --font-primary:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono:
    "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Dark Theme */
[data-theme="dark"] {
  --text-primary: #f7fafc;
  --text-secondary: #e2e8f0;
  --text-muted: #a0aec0;
  --text-light: #718096;
  --bg-primary: #1a202c;
  --bg-secondary: #2d3748;
  --bg-tertiary: #4a5568;
  --bg-card: #2d3748;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

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

/* Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition:
    opacity 0.5s ease,
    visibility 0.5s ease;
}

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

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

.loading-logo {
  position: relative;
  width: 220px;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}

.loading-text {
  z-index: 2;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: white;
  width: 180px;
}

.loading-name {
  font-size: 1.3rem;
  font-weight: 700;
  font-family: var(--font-primary);
  margin-bottom: 0.2rem;
  line-height: 1.1;
  white-space: nowrap;
}

.loading-role {
  font-size: 0.8rem;
  font-weight: 500;
  opacity: 0.95;
  line-height: 1.1;
  white-space: nowrap;
}

.loading-bar {
  position: absolute;
  top: 0;
  left: 0;
  width: 220px;
  height: 220px;
  border: 4px solid rgba(255, 255, 255, 0.2);
  border-top: 4px solid white;
  border-radius: 50%;
  animation: spin 2s linear infinite;
  z-index: 1;
}

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

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

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

.nav-brand a {
  text-decoration: none;
}

.logo-img {
  height: 40px;
  width: auto;
  transition: transform var(--transition-fast);
  max-width: 160px;
}

.logo-img:hover {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
  white-space: nowrap;
  font-size: 0.9rem;
}

.nav-link:hover,
.nav-link.active {
  color: #1a202c;
  background: rgba(102, 126, 234, 0.25);
}

.resume-btn {
  background: var(--gradient-primary);
  color: white !important;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.resume-btn:hover {
  background: var(--gradient-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.theme-toggle,
.mobile-menu-toggle {
  background: none;
  border: none;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.theme-toggle:hover,
.mobile-menu-toggle:hover {
  background: var(--bg-tertiary);
  color: var(--primary-color);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 3px;
}

.mobile-menu-toggle span {
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: all var(--transition-fast);
}

/* Mobile Menu Overlay */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    right: -50%;
    top: 0;
    height: 100vh;
    width: 50%;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    text-align: left;
    transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
    z-index: 999;
    padding: 5rem 2rem 2rem;
    border-left: 1px solid rgba(0, 0, 0, 0.1);
    justify-content: flex-start;
    gap: 0;
  }

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

  .nav-link {
    padding: 1rem 1.5rem;
    display: block;
    margin: 0.3rem 0;
    color: var(--text-primary) !important;
    font-weight: 500;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    font-size: 1rem;
    white-space: nowrap;
  }

  .nav-link:hover {
    background: var(--primary-color) !important;
    color: white !important;
    transform: translateX(-5px);
    border: 1px solid var(--primary-color);
  }

  .nav-link.active {
    background: var(--primary-color) !important;
    color: white !important;
    font-weight: 600;
  }

  .resume-btn {
    background: var(--gradient-primary) !important;
    color: white !important;
    margin-top: 1rem;
    justify-content: center;
  }

  .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(4px, -4px);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 80px 0 40px;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0.1;
}

.hero-particles {
  position: absolute;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(
      circle at 20% 80%,
      rgba(255, 255, 255, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 20%,
      rgba(255, 255, 255, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 40% 40%,
      rgba(255, 255, 255, 0.05) 0%,
      transparent 50%
    );
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.15);
  color: white;
  padding: var(--spacing-xs) var(--spacing-lg);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
  color: white;
  margin-bottom: var(--spacing-sm);
}

.greeting {
  display: block;
  font-size: 1.1rem;
  font-weight: 500;
  opacity: 0.95;
  margin-bottom: var(--spacing-xs);
}

.name {
  display: block;
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: var(--spacing-xs);
  background: linear-gradient(135deg, #ffffff 0%, #f0f8ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.role {
  display: block;
  font-size: 1.3rem;
  font-weight: 600;
  opacity: 0.95;
  margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
  height: 35px;
  margin-bottom: var(--spacing-md);
}

#typewriter {
  font-size: 1.1rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
  font-family: var(--font-mono);
}

.hero-description {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--spacing-md);
  line-height: 1.5;
  max-width: 650px;
  font-weight: 400;
}

.hero-stats {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
  color: white;
  background: rgba(255, 255, 255, 0.1);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  min-width: 100px;
  transition: transform var(--transition-normal);
}

.stat:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.15);
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  display: block;
  font-family: var(--font-mono);
  margin-bottom: 2px;
}

.stat-label {
  font-size: 0.75rem;
  opacity: 0.95;
  font-weight: 500;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.hero-visual {
  display: none;
}

.hero-tech-stack {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-sm);
}

.tech-badge {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--transition-normal);
}

.tech-badge:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: 0.9rem;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  border: none;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(240, 147, 251, 0.2);
  color: white;
  border: 1px solid rgba(240, 147, 251, 0.3);
}

.btn-secondary:hover {
  background: rgba(240, 147, 251, 0.3);
  transform: translateY(-2px);
}

/* Section Styles */
section {
  padding: var(--spacing-3xl) 0;
}

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

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

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

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

.about-intro h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.about-intro p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-xl);
}

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

.highlight {
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
}

.highlight i {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-top: var(--spacing-xs);
}

.highlight h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.highlight p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.about-skills-overview h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
}

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

.skill-category h4 {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.skill-category i {
  color: var(--primary-color);
}

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

.skill-tags span {
  background: var(--bg-card);
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--bg-tertiary);
}

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

.timeline::before {
  content: "";
  position: absolute;
  left: 30px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gradient-primary);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-3xl);
  padding-left: 80px;
}

.timeline-marker {
  position: absolute;
  left: 20px;
  top: 0;
  width: 20px;
  height: 20px;
  background: var(--primary-color);
  border: 4px solid var(--bg-primary);
  border-radius: 50%;
  box-shadow: var(--shadow-md);
}

.timeline-content {
  background: var(--bg-card);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--bg-tertiary);
}

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

.timeline-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.company,
.duration,
.location {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.company i,
.duration i,
.location i {
  color: var(--primary-color);
}

.timeline-description p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

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

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

.timeline-description li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

.timeline-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.timeline-tech span {
  background: var(--gradient-primary);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

/* Skills Section */
.skills {
  background: var(--bg-secondary);
}

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

.skill-category-card {
  background: var(--bg-card);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--bg-tertiary);
  transition: transform var(--transition-normal);
}

.skill-category-card:hover {
  transform: translateY(-5px);
}

.category-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.category-header i {
  font-size: 2rem;
  color: var(--primary-color);
}

.category-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.skills-list {
  display: grid;
  gap: var(--spacing-lg);
}

.skill-item {
  position: relative;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.skill-name {
  font-weight: 600;
  color: var(--text-primary);
}

.skill-level {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

.skill-bar {
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  width: 0%;
  transition: width 1s ease-in-out;
}

/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1000px;
  margin: 0 auto;
}

.project-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--bg-tertiary);
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.project-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.project-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: white;
  flex-shrink: 0;
}

.project-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.3;
}

/* Achievements Section */
.achievements {
  background: var(--bg-secondary);
}

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

.achievement-card {
  background: var(--bg-card);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--bg-tertiary);
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
  transition: all var(--transition-normal);
}

.achievement-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.achievement-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  flex-shrink: 0;
}

.achievement-content h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.achievement-content p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Contact Section */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-3xl);
}

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

.contact-card {
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
  background: var(--bg-card);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--bg-tertiary);
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: white;
  flex-shrink: 0;
}

.contact-details h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.contact-details p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.contact-details span {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.contact-form {
  background: var(--bg-card);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--bg-tertiary);
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--bg-tertiary);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

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

.social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.social-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--bg-card);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--bg-tertiary);
  transition: all var(--transition-normal);
  font-weight: 500;
}

.social-link:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  color: var(--primary-color);
}

.social-link i {
  font-size: 1.25rem;
}

/* Footer */
.footer {
  background: var(--bg-dark);
  color: white;
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.9);
}

.footer-brand-text {
  text-align: justify;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.footer-section h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: var(--accent-color);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
}

.footer-bottom a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* Control Buttons */
.control-buttons {
  position: fixed;
  top: 80px;
  right: 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  z-index: 1000;
}

.btn-create,
.btn-download,
.btn-theme,
.btn-font,
.btn-tutorial {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-primary);
}

.btn-create:hover,
.btn-download:hover,
.btn-theme:hover,
.btn-font:hover,
.btn-tutorial:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  opacity: 0.9;
}

/* Responsive Design */
@media (max-width: 768px) {
  /* Loading Screen - Tablet */
  .loading-logo {
    width: 180px;
    height: 180px;
  }

  .loading-bar {
    width: 180px;
    height: 180px;
    border-width: 3px;
  }

  .loading-text {
    width: 140px;
  }

  .loading-name {
    font-size: 1.1rem;
  }

  .loading-role {
    font-size: 0.7rem;
  }

  .hero {
    min-height: 100vh;
    padding: 100px 0 40px;
  }

  .hero-content {
    padding: 0 var(--spacing-md);
  }

  .name {
    font-size: 2.5rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .hero-stats {
    justify-content: center;
    gap: var(--spacing-lg);
  }

  .hero-actions {
    justify-content: center;
    flex-direction: column;
    align-items: center;
  }

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

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

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

  .footer-links {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

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

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

  .timeline-marker {
    left: 10px;
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .project-card {
    padding: var(--spacing-md);
    gap: var(--spacing-md);
  }

  .project-icon {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .project-card h3 {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  /* Loading Screen - Mobile */
  .loading-logo {
    width: 150px;
    height: 150px;
  }

  .loading-bar {
    width: 150px;
    height: 150px;
    border-width: 3px;
  }

  .loading-text {
    width: 120px;
  }

  .loading-name {
    font-size: 1rem;
  }

  .loading-role {
    font-size: 0.65rem;
  }

  .hero {
    min-height: 100vh;
    padding: 100px 0 40px;
  }

  .name {
    font-size: 2.5rem;
  }

  .role {
    font-size: 1.25rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .hero-stats {
    gap: var(--spacing-lg);
  }

  .stat {
    min-width: 100px;
    padding: var(--spacing-md);
  }

  .stat-number {
    font-size: 2rem;
  }

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

  .btn {
    width: 100%;
    justify-content: center;
    max-width: 280px;
  }

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

  .project-header {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-md);
  }

  .project-meta h3 {
    font-size: 1.1rem;
  }

  .project-tech {
    justify-content: center;
  }

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

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

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

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

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

.animate-on-scroll {
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}

/* Utility Classes */
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}

.mb-0 {
  margin-bottom: 0;
}
.mb-1 {
  margin-bottom: var(--spacing-sm);
}
.mb-2 {
  margin-bottom: var(--spacing-md);
}
.mb-3 {
  margin-bottom: var(--spacing-lg);
}
.mb-4 {
  margin-bottom: var(--spacing-xl);
}

.mt-0 {
  margin-top: 0;
}
.mt-1 {
  margin-top: var(--spacing-sm);
}
.mt-2 {
  margin-top: var(--spacing-md);
}
.mt-3 {
  margin-top: var(--spacing-lg);
}
.mt-4 {
  margin-top: var(--spacing-xl);
}