/* ========================================
   MODERN PORTFOLIO - STYLE.CSS
   Dark Theme with Gradient Accents
======================================== */

/* CSS Variables */
:root {
  /* Dark Theme Colors */
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #16213e;
  --bg-card: rgba(26, 26, 46, 0.7);
  
  /* Accent Colors */
  --accent-purple: #667eea;
  --accent-cyan: #64ffda;
  --accent-pink: #f093fb;
  --accent-blue: #4facfe;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #64ffda 0%, #667eea 100%);
  --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-glow: linear-gradient(135deg, #667eea 0%, #64ffda 50%, #f093fb 100%);
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #b8b8d1;
  --text-muted: #6b7280;
  
  /* Border */
  --border-color: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(102, 126, 234, 0.5);
  
  /* Glass Effect */
  --glass-bg: rgba(26, 26, 46, 0.6);
  --glass-border: rgba(255, 255, 255, 0.1);
  
  /* Shadows */
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.3);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Spacing */
  --sidebar-width: 320px;
}

/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Particle Canvas */
#particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* Main Container */
.main-container {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* ========================================
   SIDEBAR STYLES
======================================== */
.sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--glass-border);
  position: fixed;
  left: 0;
  top: 0;
  display: flex;
  flex-direction: column;
  padding: 40px 30px;
  z-index: 100;
}

.sidebar-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

/* Profile Picture */
.profile-picture {
  position: relative;
  margin-bottom: 25px;
}

.avatar-glow {
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: var(--gradient-glow);
  filter: blur(25px);
  opacity: 0.6;
  animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    transform: scale(1);
    opacity: 0.6;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.8;
  }
}

.avatar {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  border: 3px solid transparent;
  background-clip: padding-box;
  box-shadow: var(--shadow-glow);
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.avatar i {
  font-size: 50px;
  color: var(--text-primary);
}

/* Name & Title */
.name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--accent-cyan); /* Fallback color */
  background: var(--gradient-secondary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.title {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 25px;
  min-height: 24px;
}

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

.cursor {
  color: var(--accent-cyan);
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50% {
    opacity: 1;
  }
  51%, 100% {
    opacity: 0;
  }
}

/* Info List */
.info-list {
  list-style: none;
  width: 100%;
  margin-bottom: 25px;
}

.info-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.info-list li:last-child {
  border-bottom: none;
}

.info-list i {
  width: 35px;
  height: 35px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border-radius: 8px;
  color: var(--accent-cyan);
  font-size: 0.9rem;
}

.info-list a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.info-list a:hover {
  color: var(--accent-cyan);
}

/* Social Links */
.social-links {
  display: flex;
  gap: 15px;
  margin-top: auto;
}

.social-btn {
  width: 45px;
  height: 45px;
  border-radius: 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1.1rem;
  transition: all var(--transition-normal);
}

.social-btn:hover {
  background: var(--gradient-primary);
  color: var(--text-primary);
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

/* ========================================
   MAIN CONTENT STYLES
======================================== */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 40px 50px;
  min-height: 100vh;
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 40px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  padding: 10px;
  border-radius: 16px;
  border: 1px solid var(--glass-border);
  flex-wrap: wrap;
}

.tab-btn {
  padding: 12px 25px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.tab-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
  border-radius: 10px;
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn:hover::before {
  opacity: 0.3;
}

.tab-btn.active {
  color: var(--text-primary);
  background: var(--gradient-primary);
  box-shadow: var(--shadow-glow);
}

/* Tab Content */
.tab-contents {
  position: relative;
}

.tab-content {
  display: none;
  animation: fadeIn 0.5s ease forwards;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Section Header */
.section-header {
  margin-bottom: 35px;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 15px;
  position: relative;
  display: inline-block;
}

.title-decoration {
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

/* Fade-in Animation */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* About Text */
.about-text {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 25px 30px;
  margin-bottom: 35px;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Subsection Title */
.subsection-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 25px;
  color: var(--text-primary);
  position: relative;
  padding-left: 15px;
}

.subsection-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 2px;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
  margin-bottom: 40px;
}

.service-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 25px;
  display: flex;
  gap: 20px;
  transition: all var(--transition-normal);
  cursor: default;
}

.service-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.service-icon {
  width: 60px;
  height: 60px;
  min-width: 60px;
  border-radius: 14px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-glow);
}

.service-content h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.service-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Languages Grid */
.languages-grid {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.language-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 15px 25px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  transition: all var(--transition-normal);
}

.language-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
}

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

.language-level {
  font-size: 0.85rem;
  color: var(--accent-cyan);
}

/* ========================================
   RESUME STYLES
======================================== */
.resume-section {
  margin-bottom: 40px;
}

.resume-section-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 25px;
}

.resume-section-header i {
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: 12px;
  font-size: 1.2rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-glow);
}

.resume-section-header h3 {
  font-size: 1.3rem;
  font-weight: 600;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 30px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gradient-primary);
}

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

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -26px;
  top: 5px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gradient-primary);
  box-shadow: var(--shadow-glow);
}

.timeline-content {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 25px;
  transition: all var(--transition-normal);
}

.timeline-content:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.timeline-content h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.timeline-place {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

.timeline-date {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--accent-cyan);
  background: rgba(100, 255, 218, 0.1);
  padding: 5px 12px;
  border-radius: 20px;
  margin-bottom: 15px;
}

.timeline-details {
  list-style: none;
  margin-top: 15px;
}

.timeline-details li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline-details li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-purple);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 15px;
  padding: 10px 20px;
  background: var(--gradient-primary);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-normal);
}

.project-link:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

/* ========================================
   PORTFOLIO STYLES
======================================== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
}

.current-project-section,
.portfolio-subsection {
  margin-bottom: 35px;
}

.current-project-section h3,
.portfolio-subsection h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 18px;
}

.featured-project-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.featured-project-grid .portfolio-card {
  grid-column: span 1;
}

.portfolio-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.portfolio-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

/* Portfolio Image - Match actual image aspect ratio (1893x865 = 2.19:1) */
.portfolio-image {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 45.7%; /* 865/1893 = 0.457 = 45.7% for 2.19:1 aspect ratio */
  background: var(--bg-tertiary);
  overflow: hidden;
}

.portfolio-preview-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform var(--transition-normal);
}

.portfolio-card:hover .portfolio-preview-img {
  transform: scale(1.02);
}

/* For icons (projects without images) */
.portfolio-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 4rem;
  color: var(--accent-purple);
  opacity: 0.5;
  transition: all var(--transition-normal);
}

.portfolio-card:hover .portfolio-icon {
  opacity: 0.3;
  transform: translate(-50%, -50%) scale(1.1);
}

/* Portfolio Buttons - Always Visible */
.portfolio-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 15px 20px;
  background: var(--bg-tertiary);
  border-top: 1px solid var(--glass-border);
}

.portfolio-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--gradient-primary);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition-normal);
}

.portfolio-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.portfolio-btn i {
  font-size: 0.9rem;
}

.portfolio-content {
  padding: 20px;
}

.portfolio-content h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.portfolio-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 15px;
}

.portfolio-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.portfolio-tags span {
  font-size: 0.8rem;
  padding: 5px 12px;
  background: rgba(102, 126, 234, 0.2);
  color: var(--accent-cyan);
  border-radius: 20px;
}

/* ========================================
   SKILLS STYLES
======================================== */
.skills-category {
  margin-bottom: 35px;
}

.skills-category-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
}

.skills-category-title i {
  color: var(--accent-cyan);
}

/* Animated Skill Bars */
.skills-bars {
  display: grid;
  gap: 20px;
}

.skill-item {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 18px 22px;
  transition: all var(--transition-normal);
}

.skill-item:hover {
  transform: translateX(5px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
}

.skill-name {
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.skill-percent {
  color: var(--accent-cyan);
  font-weight: 700;
  font-size: 0.95rem;
}

.skill-bar {
  height: 10px;
  background: var(--bg-tertiary);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
}

.skill-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 10px;
  width: 0;
  transition: width 1.5s ease-out;
  box-shadow: 0 0 15px var(--accent-purple);
  position: relative;
}

/* Glowing animation on the progress bar */
.skill-progress::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 20px;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-20px);
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  100% {
    transform: translateX(20px);
    opacity: 0;
  }
}

/* Skill Tags */
.skills-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.skill-tag:hover {
  border-color: var(--border-glow);
  color: var(--text-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.skill-tag i {
  color: var(--accent-cyan);
}

/* ========================================
   CONTACT STYLES
======================================== */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--text-primary);
}

.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: 25px;
  line-height: 1.7;
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 30px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-normal);
}

.contact-card:hover {
  border-color: var(--border-glow);
  transform: translateX(10px);
  box-shadow: var(--shadow-glow);
}

.contact-card i {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: 12px;
  font-size: 1.2rem;
  color: var(--text-primary);
}

.contact-card h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.contact-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.contact-social h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--text-primary);
}

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

.social-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 25px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-normal);
}

.social-button:hover {
  background: var(--gradient-primary);
  border-color: transparent;
  color: var(--text-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.social-button i {
  font-size: 1.1rem;
}

/* Contact Form */
.contact-form {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 35px;
}

.form-group {
  position: relative;
  margin-bottom: 25px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 15px 20px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all var(--transition-normal);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-purple);
  box-shadow: 0 0 15px rgba(102, 126, 234, 0.2);
}

.form-group label {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  transition: all var(--transition-normal);
  background: transparent;
}

.form-group textarea ~ label {
  top: 20px;
  transform: none;
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
  top: -10px;
  left: 15px;
  font-size: 0.8rem;
  background: var(--bg-tertiary);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--accent-cyan);
}

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

.submit-btn {
  width: 100%;
  padding: 15px 30px;
  background: var(--gradient-primary);
  border: none;
  border-radius: 12px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all var(--transition-normal);
}

.submit-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.submit-btn i {
  transition: transform var(--transition-normal);
}

.submit-btn:hover i {
  transform: translateX(5px);
}

/* ========================================
   RESPONSIVE STYLES
======================================== */
@media (max-width: 1200px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 992px) {
  :root {
    --sidebar-width: 280px;
  }
  
  .main-content {
    padding: 30px;
  }

  .featured-project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .section-title {
    font-size: 1.7rem;
  }
}

@media (max-width: 768px) {
  .main-container {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    min-height: auto;
    position: relative;
    padding: 30px 20px;
    border-right: none;
    border-bottom: 1px solid var(--glass-border);
  }
  
  .main-content {
    margin-left: 0;
    padding: 25px 20px;
  }
  
  /* Mobile Navigation Fix - Horizontally scrollable tabs */
  .nav-tabs {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    gap: 5px;
    padding: 8px 10px;
    justify-content: flex-start;
  }
  
  .nav-tabs::-webkit-scrollbar {
    display: none;
  }
  
  .tab-btn {
    flex: 0 0 auto;
    padding: 10px 16px;
    font-size: 0.85rem;
    white-space: nowrap;
  }
  
  /* Auto-slide animation hint */
  .nav-tabs.slide-hint {
    animation: slideHint 1.5s ease-in-out;
  }
  
  @keyframes slideHint {
    0% {
      transform: translateX(0);
    }
    30% {
      transform: translateX(-50px);
    }
    60% {
      transform: translateX(10px);
    }
    100% {
      transform: translateX(0);
    }
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .service-card {
    flex-direction: column;
    text-align: center;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
  
  .social-buttons {
    flex-direction: column;
  }
  
  .languages-grid {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .avatar {
    width: 120px;
    height: 120px;
  }
  
  .avatar-glow {
    width: 140px;
    height: 140px;
  }
  
  .avatar i {
    font-size: 40px;
  }
  
  .name {
    font-size: 1.3rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .tab-btn {
    padding: 8px 14px;
    font-size: 0.8rem;
  }
  
  .about-text {
    padding: 20px;
  }
  
  .timeline {
    padding-left: 20px;
  }
  
  .timeline-dot {
    left: -16px;
    width: 12px;
    height: 12px;
  }
  
  .timeline-content {
    padding: 18px;
  }
  
  .contact-form {
    padding: 25px;
  }
}

/* ========================================
   SCROLLBAR STYLES
======================================== */
/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--accent-purple) var(--bg-primary);
}

/* WebKit browsers (Chrome, Safari, Edge) */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-purple);
}

/* Selection */
::selection {
  background: var(--accent-purple);
  color: var(--text-primary);
}

/* Profile Image */
.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}