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

:root {
  /* Colors */
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --secondary-color: #f59e0b;
  --accent-color: #10b981;
  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --border-color: #27272a;
  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  --gradient-secondary: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --gradient-accent: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

html {
  scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease 0.8s forwards;
}

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

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

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

.btn-outline:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

.btn-full {
    width: 100%;
}

.btn-loading {
  display: none;
}

.btn.loading .btn-text {
  display: none;
}

.btn.loading .btn-loading {
  display: inline;
}

/* Navigation */
.navbar {
    position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  padding: 0;
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.95);
  box-shadow: var(--shadow-lg);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.logo {
    display: flex;
    align-items: center;
  gap: var(--spacing-xs);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
    text-decoration: none;
}

.logo-img {
  height: 32px;
  width: auto;
}

.logo-dot {
  width: 8px;
  height: 8px;
  background: var(--gradient-primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
  outline: none;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:focus,
.nav-link:active {
  outline: none;
  color: var(--text-secondary);
}

.nav-link:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* Override Bootstrap active styles */
.navbar-nav .nav-link.active,
.navbar-nav .show > .nav-link,
.nav-link.active {
  color: var(--text-secondary) !important;
}

.nav-link.active::after {
  width: 0;
}

/* Active state only when scrolled to section */
.nav-link.active[data-active="true"] {
  color: var(--text-primary);
}

.nav-link.active[data-active="true"]::after {
  width: 100%;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-normal);
}

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

.language-switch {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.language-switch:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-normal);
}

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

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
}

.particles-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  animation: fadeIn 2s ease 1.5s forwards;
}

.gradient-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 40% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  width: 100%;
}

.hero-title {
  margin-bottom: var(--spacing-lg);
}

.title-line {
  display: block;
  opacity: 0;
  transform: translateY(30px);
  animation: slideInUp 0.8s ease forwards;
}

.title-line:nth-child(1) { animation-delay: 0.1s; }
.title-line:nth-child(2) { animation-delay: 0.2s; }
.title-line:nth-child(3) { animation-delay: 0.3s; }

.highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@keyframes slideInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.4s forwards;
}

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


.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease 0.4s forwards;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transform: translateX(30px);
  animation: fadeInRight 0.8s ease 0.5s forwards;
}

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

.code-window {
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  width: 100%;
  max-width: 500px;
  border: 1px solid var(--border-color);
  opacity: 0;
  transform: translateY(30px) scale(0.95);
  animation: fadeInUp 0.8s ease 0.7s forwards;
}

.window-header {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.window-controls {
  display: flex;
  gap: var(--spacing-xs);
  margin-right: var(--spacing-md);
}

.control {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.control.red { background: #ef4444; }
.control.yellow { background: #f59e0b; }
.control.green { background: #10b981; }

.window-title {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.window-content {
  padding: var(--spacing-lg);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.8;
}

.code-line {
  margin-bottom: var(--spacing-xs);
}

.code-line.indent {
  padding-left: var(--spacing-md);
}

.code-keyword { color: #c792ea; }
.code-variable { color: #82aaff; }
.code-property { color: #ffcb6b; }
.code-string { color: #c3e88d; }
.code-number { color: #f78c6c; }

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  opacity: 0;
  animation: fadeInUp 1s ease 2s forwards;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  border: 2px solid var(--text-secondary);
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: rotate(45deg) translateY(0); }
  40% { transform: rotate(45deg) translateY(-10px); }
  60% { transform: rotate(45deg) translateY(-5px); }
}

/* Section Styles */
section {
  padding: var(--spacing-2xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  margin-bottom: var(--spacing-md);
  opacity: 0;
  transform: translateY(30px);
  animation: slideInUp 0.8s ease forwards;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(30px);
  animation: slideInUp 0.8s ease 0.2s forwards;
}

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

.about-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  max-width: 920px;
  margin: 0 auto;
}

.about-text {
    display: flex;
    flex-direction: column;
  gap: var(--spacing-lg);
}

.about-card {
  background: var(--bg-tertiary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.about-card h3 {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.about-card p {
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 0;
}

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

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

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

.timeline-item::before {
  content: '';
    position: absolute;
  left: -6px;
  top: 8px;
  width: 12px;
  height: 12px;
  background: var(--primary-color);
  border-radius: 50%;
  border: 3px solid var(--bg-secondary);
}

.timeline-year {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: var(--spacing-xs);
}

.timeline-content h4 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.timeline-content p {
  color: white;
  font-size: 1rem;
  margin: 0;
  font-weight: 500;
}

/* Portfolio Section */
.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  font-weight: 500;
}

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

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.portfolio-item {
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  opacity: 0;
  transform: translateY(30px);
  animation: slideInUp 0.6s ease forwards;
}

.portfolio-item:nth-child(1) { animation-delay: 0.1s; }
.portfolio-item:nth-child(2) { animation-delay: 0.2s; }
.portfolio-item:nth-child(3) { animation-delay: 0.3s; }
.portfolio-item:nth-child(4) { animation-delay: 0.4s; }
.portfolio-item:nth-child(5) { animation-delay: 0.5s; }
.portfolio-item:nth-child(6) { animation-delay: 0.6s; }

.portfolio-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

.portfolio-image {
  position: relative;
  overflow: hidden;
  height: 200px;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio-item:hover .portfolio-image img {
  transform: scale(1.1);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: var(--primary-color);
  border-radius: 50%;
  color: white;
  text-decoration: none;
  font-size: 1.5rem;
  transition: all var(--transition-normal);
}

.portfolio-link:hover {
  background: var(--primary-dark);
  transform: scale(1.1);
}

.portfolio-content {
  padding: var(--spacing-lg);
}

.portfolio-content h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.portfolio-content p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.portfolio-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.tech-tag {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--border-color);
}

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

.skills-grid {
  max-width: 100%;
}

.skills-panel {
  background: var(--bg-tertiary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.skill-items--compact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
  gap: var(--spacing-sm);
}

.skill-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-xs);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: background var(--transition-normal), border-color var(--transition-normal),
    transform var(--transition-normal), box-shadow var(--transition-normal);
  width: 100%;
  min-height: 0;
  box-sizing: border-box;
}

.skill-item--compact {
  cursor: default;
}

.skill-item--compact img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.skill-item-badge {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary-color), #a855f7);
  color: white;
  font-size: 0.625rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

.skill-item--compact span {
  font-size: 0.6875rem;
  font-weight: 500;
  text-align: center;
  color: var(--text-secondary);
  line-height: 1.25;
  transition: color var(--transition-normal);
}

.skill-item--compact:hover {
  background: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.skill-item--compact:hover span {
  color: white;
}

.skill-item--compact:hover .skill-item-badge {
  background: white;
  color: var(--primary-color);
}

/* Contact Section */
.contact {
  background: var(--bg-primary);
}

.contact-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-2xl);
}

.contact-info {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
  gap: var(--spacing-lg);
  width: 100%;
  max-width: 640px;
}

.contact-card {
  background: var(--bg-tertiary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all var(--transition-normal);
  flex: 1 1 240px;
  max-width: 300px;
}

a.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: inherit;
  box-sizing: border-box;
  cursor: pointer;
}

a.contact-card:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 3px;
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: 1.5rem;
  color: white;
}

.contact-icon i {
  color: white !important;
}

.contact-card .contact-icon i::before {
  width: 32px;
  height: 32px;
}

.contact-card .icon-phone::before {
  width: 32px;
  height: 32px;
}

.contact-card .icon-telegram::before {
  width: 32px;
  height: 32px;
}

.contact-icon .icon-phone::before {
  width: 32px;
  height: 32px;
}

.contact-icon .icon-telegram::before {
  width: 32px;
  height: 32px;
}

.contact-card h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

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

.contact-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.contact-card:hover .contact-link {
  color: var(--primary-dark);
}

/* Custom Dropdown Styles */
.custom-dropdown {
  position: relative;
  width: 100%;
  cursor: pointer;
}

.dropdown-selected {
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
  user-select: none;
}

.dropdown-selected:hover {
  border-color: var(--primary-color);
}

.dropdown-selected.active {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.dropdown-text {
  color: var(--text-primary);
  font-size: 1rem;
}

.dropdown-arrow {
  color: var(--text-secondary);
  font-size: 0.8rem;
  transition: all 0.3s ease;
}

.custom-dropdown:hover .dropdown-arrow {
  color: var(--primary-color);
}

.dropdown-selected.active .dropdown-arrow {
  transform: rotate(180deg);
  color: var(--primary-color);
}

.dropdown-options {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border: 2px solid var(--primary-color);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  max-height: 300px;
  overflow-y: auto;
}

/* Specific height for budget dropdown */
.custom-dropdown[data-name="budget"] .dropdown-options {
  max-height: 250px;
}

.dropdown-options.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-option {
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.2s ease;
  border-bottom: 1px solid var(--border-color);
}

.dropdown-option:last-child {
  border-bottom: none;
}

.dropdown-option:hover {
  background: var(--primary-color);
  color: white;
}

.dropdown-option.selected {
  background: var(--primary-color);
  color: white;
}

/* Development process */
.process-section {
  background: var(--bg-secondary);
}

.process-steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  max-width: 900px;
  margin: 0 auto;
}

.process-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--spacing-md) var(--spacing-lg);
  align-items: flex-start;
  background: var(--bg-tertiary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.process-step-num {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  color: white;
  font-weight: 800;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.process-step-body h3 {
  color: var(--text-primary);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 var(--spacing-xs);
  line-height: 1.35;
}

.process-step-body > p {
  color: var(--text-secondary);
  margin: 0 0 var(--spacing-sm);
  line-height: 1.65;
  font-size: 0.9375rem;
}

.process-step-body > p:last-child {
  margin-bottom: 0;
}

.process-step-timing {
  font-size: 0.8125rem !important;
  color: var(--text-secondary);
  opacity: 0.9;
  font-style: italic;
}

.process-step-client {
  margin-top: var(--spacing-sm) !important;
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--border-color);
}

.process-step-label {
  color: var(--text-primary);
  font-weight: 600;
}

.process-step--highlight {
  position: relative;
  border: 1px solid rgba(99, 102, 241, 0.5);
  background: linear-gradient(
    145deg,
    rgba(99, 102, 241, 0.12) 0%,
    rgba(168, 85, 247, 0.08) 50%,
    var(--bg-tertiary) 100%
  );
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.12);
}

.process-step--highlight::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
  background: var(--gradient-primary);
}

.process-step--highlight .process-step-num {
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
}

.process-step-pill {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: white;
  background: var(--gradient-primary);
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  margin-bottom: var(--spacing-sm);
}

.process-step--highlight .process-step-body h3 {
  color: var(--text-primary);
}

@media (max-width: 576px) {
  .process-step {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .process-step-num {
    width: 2.25rem;
    height: 2.25rem;
    font-size: 1rem;
  }
}

/* Cost Calculator Section */
.cost-calculator-section {
  background: var(--bg-primary);
  margin-top: var(--spacing-xxl);
}

.cost-calculator {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

.calculator-title {
  color: var(--text-primary);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  text-align: center;
}

.calculator-subtitle {
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.calculator-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.cost-result {
  margin-top: var(--spacing-lg);
  animation: fadeInUp 0.5s ease;
}

.result-card {
  background: var(--bg-tertiary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--primary-color);
  box-shadow: var(--shadow-md);
}

.result-card h4 {
  color: var(--text-primary);
  font-size: 1.2rem;
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.result-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

.result-item:last-child {
  border-bottom: none;
}

.result-label {
  color: var(--text-secondary);
  font-weight: 500;
}

.result-value {
  color: var(--primary-color);
  font-weight: 600;
  font-size: 1.1rem;
}

.result-note {
  text-align: center;
  color: var(--text-secondary);
  font-style: italic;
}

.api-usage-info {
  text-align: center;
  margin-top: var(--spacing-sm);
  padding: var(--spacing-xs);
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.api-usage-info small {
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.btn-loading {
  display: none;
}

.btn.loading .btn-text {
  display: none;
}

.btn.loading .btn-loading {
  display: inline;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.875rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-primary);
  font-family: var(--font-primary);
  transition: all var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

.footer-brand p {
  color: var(--text-secondary);
  margin-top: var(--spacing-sm);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.footer-column h4 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  font-size: 1rem;
}

.footer-column a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: var(--spacing-sm);
  transition: color var(--transition-fast);
}

.footer-column a:hover {
  color: var(--primary-color);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

.footer-bottom p {
  color: var(--text-muted);
  margin: 0;
}

/* Icons */
.icon-external::before {
  content: '↗';
}

.telegram-icon {
  background-image: url('../images/telegram-svgrepo-com.svg');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  width: 32px;
  height: 32px;
  filter: brightness(0) invert(1);
}

.phone-icon {
  background-image: url('../images/phone-rounded-svgrepo-com.svg');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  width: 32px;
  height: 32px;
  filter: brightness(0) invert(1);
}

.icon-email::before {
  content: '✉';
  color: white;
}

.icon-arrow-up::before {
  content: '↑';
  color: white;
  font-size: 1.2em;
  font-weight: bold;
}

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
  transition: all 0.3s ease;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  z-index: 1000;
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-to-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.scroll-to-top:active {
  transform: translateY(0);
}

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

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

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

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

/* Responsive Design */
@media (max-width: 768px) {
  .navbar-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    flex-direction: column;
    padding: 1rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }
  
  .navbar-nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-visual {
    order: -1;
    margin-bottom: var(--spacing-xl);
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .skill-items--compact-grid {
    grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
  }
}

@media (max-width: 480px) {
  .contact-info {
    flex-direction: column;
    align-items: center;
    max-width: 420px;
  }

  .contact-card {
    flex: none;
    width: 100%;
    max-width: 360px;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .portfolio-filters {
    flex-direction: column;
    align-items: center;
  }
  
  .filter-btn {
    width: 200px;
  }
  
  .skill-items--compact-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}

/* 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-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

/* Development Badge */
.development-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 10;
  padding: 0.5rem 1rem;
  background: rgba(245, 158, 11, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(245, 158, 11, 0.5);
  border-radius: var(--radius-sm);
  color: var(--bg-primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all var(--transition-normal);
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}

.development-badge:hover {
  background: rgba(245, 158, 11, 1);
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.5);
}

/* NDA Info Badge */
.nda-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 10;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 50%;
  color: var(--primary-color);
  cursor: help;
  transition: all var(--transition-normal);
}

.nda-badge:hover {
  background: rgba(99, 102, 241, 0.2);
  border-color: var(--primary-color);
  transform: scale(1.1);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

.nda-badge svg {
  width: 16px;
  height: 16px;
}

/* Tooltip */
.nda-badge::before {
  content: attr(data-tooltip);
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 280px;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.875rem;
  line-height: 1.5;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
  pointer-events: none;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  text-align: left;
  white-space: nowrap;
}

.nda-badge::after {
  content: '';
  position: absolute;
  top: calc(100% + 4px);
  right: 12px;
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-bottom: 6px solid var(--bg-secondary);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
  pointer-events: none;
  z-index: 101;
}

.nda-badge:hover::before,
.nda-badge:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .development-badge {
    top: 0.75rem;
    left: 0.75rem;
    padding: 0.4rem 0.75rem;
    font-size: 0.7rem;
  }

  .nda-badge {
    width: 28px;
    height: 28px;
    top: 0.75rem;
    right: 0.75rem;
  }

  .nda-badge svg {
    width: 14px;
    height: 14px;
  }

  .nda-badge::before {
    width: 240px;
    right: -100px;
    font-size: 0.8125rem;
    white-space: normal;
  }

  .nda-badge::after {
    right: 50%;
    transform: translateX(50%) translateY(-10px);
  }

  .nda-badge:hover::after {
    transform: translateX(50%) translateY(0);
  }
}

@media (max-width: 480px) {
  .development-badge {
    top: 0.5rem;
    left: 0.5rem;
    padding: 0.35rem 0.65rem;
    font-size: 0.65rem;
  }

  .nda-badge {
    width: 24px;
    height: 24px;
    top: 0.5rem;
    right: 0.5rem;
  }

  .nda-badge svg {
    width: 12px;
    height: 12px;
  }

  .nda-badge::before {
    width: 200px;
    right: -80px;
    font-size: 0.75rem;
    padding: 0.625rem 0.875rem;
    white-space: normal;
  }
}