/* Apple-Style Modern Design - Colors: Gray & Orange Accent */

:root {
  --orange-primary: #e67938;
  --orange-secondary: #ff6b35;
  --orange-light: #ff8a65;
  --orange-dark: #d4621f;
  
  --gray-900: #1a1a1a;
  --gray-800: #2d2d2d;
  --gray-700: #404040;
  --gray-600: #6b6b6b;
  --gray-500: #8e8e93;
  --gray-400: #aeaeb2;
  --gray-300: #c7c7cc;
  --gray-200: #e5e5ea;
  --gray-100: #f2f2f7;
  --gray-50: #fafafa;
  
  --green-600: #16a34a;
  --red-600: #dc2626;
  
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --backdrop-blur: blur(20px);
  
  --shadow-small: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-medium: 0 4px 24px rgba(0, 0, 0, 0.12);
  --shadow-large: 0 8px 48px rgba(0, 0, 0, 0.16);
  --shadow-orange: 0 8px 32px rgba(230, 121, 56, 0.2);
  
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  
  --font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--gray-800);
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
  overflow-x: hidden;
}

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

.section {
  padding: var(--space-2xl) 0;
  position: relative;
}

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

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-small);
}

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

.nav-logo {
  display: flex;
  align-items: center;
}

.logo-svg {
  height: 32px;
  width: auto;
  color: var(--orange-primary);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.logo-svg:hover {
  color: var(--orange-secondary);
  transform: translateY(-1px);
}

/* Legacy text logo support */
.nav-logo .logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--gray-900);
  text-decoration: none;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: var(--gray-700);
  font-weight: 500;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  position: relative;
}

.nav-link:hover {
  color: var(--orange-primary);
  transform: translateY(-1px);
}

.nav-link.contact-btn {
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  color: white;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-orange);
}

.nav-link.contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(230, 121, 56, 0.3);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--gray-800);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  background: 
    radial-gradient(circle at 20% 30%, rgba(50, 50, 50, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(40, 40, 40, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 40% 90%, rgba(45, 45, 45, 0.08) 0%, transparent 50%),
    linear-gradient(135deg, #2a2a2a 0%, #323232 25%, #2f2f2f 50%, #323232 75%, #2a2a2a 100%);
  color: white;
  box-sizing: border-box;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 20%, rgba(55, 55, 55, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(60, 60, 60, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(50, 50, 50, 0.1) 0%, transparent 50%);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.05) 100%);
}

.floating-logos {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  pointer-events: auto;
}

.logo-item {
  position: absolute;
  left: var(--x);
  top: var(--y);
  transform: translate(-50%, -50%) scale(var(--size));
  opacity: 0;
  pointer-events: auto;
  cursor: pointer;
}

.logo-item.loaded {
  animation: floatIn 2s ease-out var(--delay) forwards, 
             float 6s ease-in-out calc(var(--delay) + 2s) infinite;
}

.company-logo {
  width: 64px;
  height: 64px;
  opacity: 0.4;
  filter: 
    blur(0.6px) 
    brightness(0.9)
    saturate(0.8)
    contrast(0.9)
    drop-shadow(0 0 6px rgba(255, 255, 255, 0.05))
    drop-shadow(0 3px 8px rgba(0, 0, 0, 0.2))
    drop-shadow(0 1px 4px rgba(0, 0, 0, 0.15));
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  object-fit: contain;
  animation: logoGlow 12s ease-in-out infinite;
}

.logo-item:hover .company-logo {
  opacity: 0.8;
  transform: scale(1.5);
  filter: 
    blur(0.4px) 
    brightness(1.1)
    saturate(1.0)
    contrast(1.0)
    drop-shadow(0 0 10px rgba(255, 255, 255, 0.1))
    drop-shadow(0 6px 20px rgba(0, 0, 0, 0.3))
    drop-shadow(0 3px 10px rgba(0, 0, 0, 0.2));
}

/* Special handling for PNG logos with white backgrounds */
.company-logo[src*="Рособрнадзор.png"],
.company-logo[src*="Росфинмониторинг.png"] {
  mix-blend-mode: multiply;
  background: transparent;
  filter: 
    blur(0.6px) 
    brightness(0.9)
    saturate(0.8)
    contrast(1.2)
    drop-shadow(0 0 6px rgba(255, 255, 255, 0.05))
    drop-shadow(0 3px 8px rgba(0, 0, 0, 0.2))
    drop-shadow(0 1px 4px rgba(0, 0, 0, 0.15));
}

.logo-item:hover .company-logo[src*="Рособрнадзор.png"],
.logo-item:hover .company-logo[src*="Росфинмониторинг.png"] {
  filter: 
    blur(0.4px) 
    brightness(1.0)
    saturate(1.0)
    contrast(1.2)
    drop-shadow(0 0 10px rgba(255, 255, 255, 0.1))
    drop-shadow(0 6px 20px rgba(0, 0, 0, 0.3))
    drop-shadow(0 3px 10px rgba(0, 0, 0, 0.2));
}

/* Staggered glow animation delays */
.logo-item:nth-child(1) .company-logo { animation-delay: 0s; }
.logo-item:nth-child(2) .company-logo { animation-delay: 0.5s; }
.logo-item:nth-child(3) .company-logo { animation-delay: 1s; }
.logo-item:nth-child(4) .company-logo { animation-delay: 1.5s; }
.logo-item:nth-child(5) .company-logo { animation-delay: 2s; }
.logo-item:nth-child(6) .company-logo { animation-delay: 2.5s; }
.logo-item:nth-child(7) .company-logo { animation-delay: 3s; }
.logo-item:nth-child(8) .company-logo { animation-delay: 3.5s; }
.logo-item:nth-child(9) .company-logo { animation-delay: 4s; }
.logo-item:nth-child(10) .company-logo { animation-delay: 4.5s; }
.logo-item:nth-child(11) .company-logo { animation-delay: 5s; }
.logo-item:nth-child(12) .company-logo { animation-delay: 5.5s; }
.logo-item:nth-child(13) .company-logo { animation-delay: 6s; }
.logo-item:nth-child(14) .company-logo { animation-delay: 6.5s; }
.logo-item:nth-child(15) .company-logo { animation-delay: 7s; }
.logo-item:nth-child(16) .company-logo { animation-delay: 7.5s; }
.logo-item:nth-child(17) .company-logo { animation-delay: 8s; }
.logo-item:nth-child(18) .company-logo { animation-delay: 8.5s; }
.logo-item:nth-child(19) .company-logo { animation-delay: 9s; }

@keyframes floatIn {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0) rotate(45deg);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(var(--size)) rotate(0deg);
  }
}

@keyframes float {
  0%, 100% {
    transform: translate(-50%, -50%) scale(var(--size)) translateY(0px) rotate(0deg);
  }
  25% {
    transform: translate(-50%, -50%) scale(var(--size)) translateY(-15px) rotate(3deg);
  }
  50% {
    transform: translate(-50%, -50%) scale(var(--size)) translateY(5px) rotate(-2deg);
  }
  75% {
    transform: translate(-50%, -50%) scale(var(--size)) translateY(-8px) rotate(1deg);
  }
}

@keyframes logoGlow {
  0%, 100% {
    filter: 
      blur(0.6px) 
      brightness(0.9)
      saturate(0.8)
      contrast(0.9)
      drop-shadow(0 0 6px rgba(255, 255, 255, 0.05))
      drop-shadow(0 3px 8px rgba(0, 0, 0, 0.2))
      drop-shadow(0 1px 4px rgba(0, 0, 0, 0.15));
  }
  50% {
    filter: 
      blur(0.5px) 
      brightness(1.0)
      saturate(0.85)
      contrast(0.95)
      drop-shadow(0 0 8px rgba(255, 255, 255, 0.08))
      drop-shadow(0 4px 10px rgba(0, 0, 0, 0.25))
      drop-shadow(0 2px 6px rgba(0, 0, 0, 0.18));
  }
}

.hero-content {
  text-align: left;
  max-width: 1400px;
  margin: 0 auto;
  padding: 80px var(--space-2xl) 60px;
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  width: 100%;
  flex: 1;
}

.hero-text {
  flex: 1;
  max-width: none;
  padding-right: var(--space-lg);
}

.hero-chat {
  flex-shrink: 0;
  width: 400px;
  height: auto;
  opacity: 0.95;
}

.hero-chat img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.4));
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--space-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease 0.2s forwards;
}

.hero-title {
  font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
  font-weight: 700;
  margin-bottom: var(--space-md);
  line-height: 1.2;
  color: white;
}

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

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

.title-line.accent {
  color: white;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 30%, #e9ecef 60%, #ffffff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-lg);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease 0.4s forwards;
  line-height: 1.6;
  max-width: 500px;
}

.hero-stats {
  display: flex;
  justify-content: flex-start;
  gap: var(--space-2xl);
  margin-bottom: var(--space-lg);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease 0.6s forwards;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: white;
  display: block;
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}

.hero-buttons {
  display: flex;
  gap: var(--space-lg);
  justify-content: flex-start;
  flex-wrap: nowrap;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease 0.8s forwards;
}

.hero-buttons .btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  min-width: 160px;
  padding: var(--space-md) var(--space-lg);
  white-space: nowrap;
}

.hero-buttons .btn svg {
  transition: transform 0.3s ease;
}

.hero-buttons .btn:hover svg {
  transform: translateX(4px);
}

.scroll-indicator {
  position: relative;
  margin: 0 auto var(--space-xl);
  opacity: 0;
  animation: fadeIn 1s ease 1.2s forwards;
  text-align: center;
  flex-shrink: 0;
}

.scroll-line {
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.8), transparent);
  margin: 0 auto var(--space-sm);
  border-radius: 1px;
  animation: scroll-bounce 2s ease-in-out infinite;
}

.scroll-text {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.6);
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  color: white;
  box-shadow: var(--shadow-orange);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(230, 121, 56, 0.3);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--gray-800);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: var(--glass-border);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-number {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--orange-primary);
  background: rgba(230, 121, 56, 0.1);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-md);
  line-height: 1.3;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* Tasks Section */
.tasks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.task-card {
  background: white;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-small);
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.task-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.task-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-large);
}

.task-card:hover::before {
  transform: scaleX(1);
}

.task-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  color: white;
}

.task-card h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--space-sm);
}

.task-card p {
  color: var(--gray-600);
  line-height: 1.6;
}

/* Advantages Section */
.advantages-section {
  background: white;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.advantage-card {
  text-align: center;
  padding: var(--space-xl);
  transition: all var(--transition-normal);
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

.advantage-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin: 0 auto var(--space-md);
}

.advantage-card h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--space-sm);
}

.advantage-card:hover {
  transform: translateY(-8px);
}

/* Possibilities Section */
.possibilities-section {
  background: linear-gradient(135deg, var(--gray-50) 0%, white 100%);
}

.possibilities-tabs {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-medium);
  border: 1px solid var(--gray-200);
}

.tab-buttons {
  display: flex;
  background: var(--gray-100);
  border-radius: var(--radius-md);
  padding: 4px;
  margin-bottom: var(--space-xl);
  gap: 4px;
  overflow-x: auto;
}

.tab-btn {
  flex: 1;
  min-width: 120px;
  padding: var(--space-sm) var(--space-md);
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-weight: 500;
  color: var(--gray-600);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

.tab-btn.active {
  background: white;
  color: var(--orange-primary);
  box-shadow: var(--shadow-small);
  transform: translateY(-1px);
}

.tab-content {
  position: relative;
}

.tab-panel {
  display: none;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-normal);
}

.tab-panel.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.possibility-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.possibility-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--gray-50);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.possibility-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  transform: scaleY(0);
  transition: transform var(--transition-normal);
}

.possibility-item:hover {
  background: rgba(230, 121, 56, 0.05);
  transform: translateX(8px);
  box-shadow: var(--shadow-small);
}

.possibility-item:hover::before {
  transform: scaleY(1);
}

.possibility-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
  box-shadow: var(--shadow-orange);
}

.possibility-item span {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--gray-800);
  line-height: 1.5;
}

/* Calculator Section */
.calculator-section {
  background: linear-gradient(135deg, var(--gray-900), var(--gray-800));
  color: white;
}

.calculator-section .section-title,
.calculator-section .section-subtitle {
  color: white;
}

.calculator-container {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-2xl);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.calculator-input {
  margin-bottom: var(--space-xl);
}

.calculator-input label {
  display: block;
  margin-bottom: var(--space-md);
  font-weight: 600;
  color: white;
}

.slider {
  width: 100%;
  height: 8px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.2);
  outline: none;
  -webkit-appearance: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(230, 121, 56, 0.4);
}

.range-values {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--gray-400);
}

.range-values #current-value {
  color: var(--orange-primary);
  font-weight: 700;
}

.calculator-result {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.price-display {
  margin-bottom: var(--space-md);
}

.price-amount {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--orange-primary);
}

.price-currency {
  font-size: var(--font-size-lg);
  color: white;
  margin-left: var(--space-xs);
}

.price-details {
  color: var(--gray-400);
}

/* Contact Section */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--space-xs);
}

.contact-item a {
  color: var(--orange-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.contact-item a:hover {
  color: var(--orange-dark);
}

.contact-form {
  padding: var(--space-xl);
}

.form-group {
  position: relative;
  margin-bottom: var(--space-lg);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  background: white;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--orange-primary);
  box-shadow: 0 0 0 3px rgba(230, 121, 56, 0.1);
}

.form-group label {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  color: var(--gray-500);
  pointer-events: none;
  transition: all var(--transition-fast);
}

.form-group input:focus + label,
.form-group input:valid + label,
.form-group textarea:focus + label,
.form-group textarea:valid + label {
  top: -8px;
  left: var(--space-sm);
  font-size: var(--font-size-xs);
  color: var(--orange-primary);
  background: white;
  padding: 0 var(--space-xs);
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.checkbox-group input[type="checkbox"] {
  margin-top: 4px;
}

.checkbox-group label {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
}

.checkbox-group a {
  color: var(--orange-primary);
  text-decoration: none;
}

/* Form validation styles */
.form-group input.error,
.form-group textarea.error {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.field-error {
  display: block;
  color: #ef4444;
  font-size: var(--font-size-xs);
  margin-top: var(--space-xs);
  font-weight: 500;
}

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

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

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

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

[data-aos="fade-up"] {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

[data-aos="fade-up"].aos-animate {
  opacity: 1;
  transform: translateY(0);
}

[data-aos="zoom-in"] {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.6s ease;
}

[data-aos="zoom-in"].aos-animate {
  opacity: 1;
  transform: scale(1);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .hamburger {
    display: flex;
    z-index: 1001;
  }
  
  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .nav-menu.active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: var(--backdrop-blur);
    border-top: 1px solid var(--glass-border);
    padding: var(--space-lg);
    gap: var(--space-md);
    box-shadow: var(--shadow-large);
    z-index: 1000;
  }
  
  .nav-menu.active .nav-link {
    padding: var(--space-md);
    text-align: center;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    background: white;
  }
  
  .nav-menu.active .nav-link.contact-btn {
    background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
    color: white;
    border: none;
  }
  
  .logo-svg {
    height: 28px;
  }

  .hero {
    height: 100vh;
  }
  
  .hero-content {
    flex-direction: column;
    text-align: center;
    gap: var(--space-xl);
    padding: 70px var(--space-lg) var(--space-lg);
  }

  .hero-text {
    max-width: 100%;
    padding-right: 0;
  }

  .hero-chat {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
  }
  
  .hero-buttons {
    flex-direction: row;
    align-items: center;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: nowrap;
  }

  .hero-buttons .btn {
    min-width: 140px;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
  }
  
  .hero-stats {
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    justify-content: center;
  }

  .stat-number {
    font-size: var(--font-size-xl);
  }

  .floating-logos .logo-item {
    display: none;
  }

  .floating-logos .logo-item:nth-child(1),
  .floating-logos .logo-item:nth-child(3),
  .floating-logos .logo-item:nth-child(6),
  .floating-logos .logo-item:nth-child(9),
  .floating-logos .logo-item:nth-child(12),
  .floating-logos .logo-item:nth-child(15),
  .floating-logos .logo-item:nth-child(18) {
    display: block;
  }
  
  .floating-logos .company-logo {
    width: 48px;
    height: 48px;
    opacity: 0.5;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .container {
    padding: 0 var(--space-md);
  }
}

@media (max-width: 480px) {
  .tasks-grid,
  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    height: 100vh;
  }
  
  .hero-content {
    padding: 60px var(--space-md) var(--space-md);
  }
  
  .hero-title {
    font-size: var(--font-size-2xl);
  }
  
  .hero-buttons {
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
  }

  .hero-buttons .btn {
    min-width: 120px;
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-size-xs);
  }
  
  .hero-stats {
    margin-bottom: var(--space-md);
  }
  
  .hero-subtitle {
    margin-bottom: var(--space-md);
  }
  
  .section {
    padding: var(--space-xl) 0;
  }
  
  /* Try Now Section Ultra Small Screens */
  .try-now-section .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .try-now-section .section-subtitle {
    font-size: var(--font-size-sm);
  }
  
  .try-now-categories {
    padding: var(--space-xs);
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
  }
  
  .category-btn {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-xs);
  }
  
  .category-icon {
    font-size: var(--font-size-sm);
  }
  
  .method-tabs {
    flex-direction: column;
    gap: var(--space-xs);
    padding: var(--space-xs);
  }
  
  .method-btn {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-xs);
  }
  
  .api-tester {
    padding: var(--space-md);
    gap: var(--space-md);
  }
  
  .input-section {
    padding: var(--space-md);
  }
  
  .method-panel .form-group input,
  .method-panel .form-group textarea {
    padding: var(--space-sm);
    font-size: var(--font-size-sm);
  }
  
  .api-test-btn {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
  }
  
  .result-section {
    padding: var(--space-md);
  }
  
  .result-content {
    min-height: 200px;
    padding: var(--space-sm);
  }
  
  .result-content pre {
    font-size: 11px;
    line-height: 1.4;
  }
  
  .api-config {
    margin-top: var(--space-md);
  }
  
  .api-config-label {
    font-size: var(--font-size-xs);
  }
  
  .api-toggle-btn {
    padding: var(--space-sm);
  }
  
  .api-toggle-btn #api-status,
  .api-toggle-btn .api-url {
    font-size: 11px;
  }
}

/* Sources Section */
.sources-section {
  background: linear-gradient(135deg, var(--gray-50) 0%, white 100%);
}

.sources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.source-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-small);
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.source-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  transform: scaleY(0);
  transition: transform var(--transition-normal);
}

.source-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
}

.source-item:hover::before {
  transform: scaleY(1);
}

.source-logo {
  width: 48px;
  height: 48px;
  background: rgba(230, 121, 56, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}

.source-item span {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--gray-800);
}

/* Who Benefits Section */
.who-benefits-section {
  background: white;
}

.benefits-carousel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.benefit-card {
  background: white;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-small);
  text-align: center;
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.benefit-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.benefit-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-large);
}

.benefit-card:hover::after {
  transform: scaleX(1);
}

.benefit-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  margin: 0 auto var(--space-md);
  color: white;
}

.benefit-card h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--space-sm);
}

.benefit-card p {
  color: var(--gray-600);
  line-height: 1.6;
}

/* Footer */
.footer {
  background: var(--gray-900);
  color: white;
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-section h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--orange-primary);
}

.footer-logo {
  margin-bottom: var(--space-md);
}

.footer-logo-svg {
  height: 24px;
  width: auto;
  color: var(--gray-400);
  transition: color var(--transition-fast);
}

.footer-logo-svg:hover {
  color: var(--orange-primary);
}

.footer-section p {
  color: var(--gray-400);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

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

.footer-section ul li {
  margin-bottom: var(--space-xs);
}

.footer-section ul li a {
  color: var(--gray-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
  color: var(--orange-primary);
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding-top: var(--space-lg);
  text-align: center;
}

.footer-bottom p {
  color: var(--gray-500);
  font-size: var(--font-size-sm);
}

/* Additional responsive design for new sections */
@media (max-width: 768px) {
  .sources-grid {
    grid-template-columns: 1fr;
  }
  
  .benefits-carousel {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .footer-logo-svg {
    height: 20px;
  }
  
  .source-item {
    flex-direction: column;
    text-align: center;
  }
  
  .tab-buttons {
    flex-direction: column;
    gap: var(--space-xs);
  }
  
  .tab-btn {
    min-width: auto;
    flex: none;
  }
  
  .possibility-grid {
    grid-template-columns: 1fr;
  }
  
  .possibility-item {
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
  }
  
  /* Try Now Section Mobile */
  .try-now-categories {
    flex-direction: column;
    gap: var(--space-sm);
    padding: var(--space-sm);
    margin-bottom: var(--space-lg);
  }
  
  .category-btn {
    padding: var(--space-md) var(--space-lg);
    font-size: var(--font-size-sm);
    text-align: center;
    width: 100%;
    justify-content: center;
  }
  
  .category-icon {
    font-size: var(--font-size-base);
  }
  
  .method-tabs {
    gap: var(--space-xs);
    flex-wrap: wrap;
    justify-content: center;
    padding: var(--space-xs);
  }
  
  .method-btn {
    font-size: var(--font-size-xs);
    padding: var(--space-xs) var(--space-sm);
    min-width: auto;
    flex: 1;
    text-align: center;
  }
  
  .api-tester {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    padding: var(--space-lg);
    margin-top: var(--space-md);
  }
  
  .input-section {
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(230, 121, 56, 0.2);
  }
  
  .method-panel .form-group {
    margin-bottom: var(--space-md);
  }
  
  .method-panel .form-group input,
  .method-panel .form-group textarea {
    font-size: var(--font-size-base);
    padding: var(--space-md);
    border-radius: var(--radius-md);
  }
  
  .method-panel .form-group label {
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-xs);
  }
  
  .api-test-btn {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    font-size: var(--font-size-base);
    margin-top: var(--space-lg);
  }

  .result-section {
    border-left: none;
    border-top: 3px solid rgba(230, 121, 56, 0.3);
    padding-left: 0;
    padding-top: var(--space-lg);
    margin-top: var(--space-lg);
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
  }

  .result-section::before {
    display: none;
  }

  .result-section::after {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--orange-primary), var(--orange-secondary));
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    opacity: 1;
  }
  
  .result-header h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
  }
  
  .result-content {
    min-height: 250px;
    font-size: var(--font-size-sm);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    background: var(--gray-900);
  }
  
  .result-content pre {
    font-size: var(--font-size-xs);
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
  }
  
  .result-placeholder {
    color: var(--gray-400);
    font-style: italic;
    text-align: center;
    padding: var(--space-xl);
  }
  
  .loading-result {
    padding: var(--space-xl);
    text-align: center;
    font-size: var(--font-size-sm);
  }
  
  .error-result {
    padding: var(--space-lg);
    font-size: var(--font-size-sm);
  }
  
  /* API Config Mobile */
  .api-config {
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
  }
  
  .api-toggle-btn {
    flex-direction: column;
    gap: var(--space-xs);
    padding: var(--space-md);
    text-align: center;
  }
  
  .api-toggle-btn #api-status {
    font-size: var(--font-size-sm);
  }
  
  .api-toggle-btn .api-url {
    font-size: var(--font-size-xs);
    word-break: break-all;
  }
}

/* Additional animations and effects */
.source-item,
.benefit-card {
  opacity: 0;
  transform: translateY(20px);
  animation: slideInUp 0.6s ease forwards;
}

.source-item:nth-child(1) { animation-delay: 0.1s; }
.source-item:nth-child(2) { animation-delay: 0.2s; }
.source-item:nth-child(3) { animation-delay: 0.3s; }
.source-item:nth-child(4) { animation-delay: 0.4s; }
.source-item:nth-child(5) { animation-delay: 0.5s; }
.source-item:nth-child(6) { animation-delay: 0.6s; }
.source-item:nth-child(7) { animation-delay: 0.7s; }
.source-item:nth-child(8) { animation-delay: 0.8s; }

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

/* Try Now Section */
.try-now-section {
  background: linear-gradient(135deg, var(--gray-50) 0%, rgba(230, 121, 56, 0.03) 50%, rgba(255, 107, 53, 0.02) 100%);
  position: relative;
  overflow: hidden;
}

.try-now-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(230, 121, 56, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255, 107, 53, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(230, 121, 56, 0.04) 0%, transparent 60%);
  pointer-events: none;
  z-index: 1;
}

.try-now-section .container {
  position: relative;
  z-index: 2;
}

.try-now-section .section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
  position: relative;
}

.try-now-section .section-header::after {
  content: '';
  position: absolute;
  bottom: -var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--orange-primary), var(--orange-secondary));
  border-radius: 2px;
}

.api-config {
  margin-top: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
}

.api-config-label {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  font-weight: 500;
}

.api-toggle-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-xs) var(--space-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: var(--backdrop-blur);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.api-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--orange-primary);
}

.api-toggle-btn #api-status {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--orange-primary);
}

.api-toggle-btn .api-url {
  font-size: var(--font-size-xs);
  color: var(--gray-600);
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.try-now-tabs {
  margin-top: var(--space-2xl);
}

.try-now-categories {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
}

.category-btn {
  position: relative;
  padding: var(--space-md) var(--space-xl);
  border: none;
  background: transparent;
  color: var(--gray-600);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.category-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

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

.category-btn:hover {
  color: var(--orange-primary);
  background: rgba(230, 121, 56, 0.08);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(230, 121, 56, 0.15);
}

.category-btn.active {
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(230, 121, 56, 0.25);
}

.category-btn.active::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
  border-radius: inherit;
}

.category-icon {
  font-size: var(--font-size-lg);
  transition: transform 0.3s ease;
}

.category-btn:hover .category-icon {
  transform: scale(1.1) rotate(5deg);
}

.category-btn.active .category-icon {
  transform: scale(1.1);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.category-content {
  display: none;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.category-content.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
  animation: slideUpFade 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUpFade {
  0% {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.method-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  padding: var(--space-sm);
  background: rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.method-btn {
  position: relative;
  padding: var(--space-sm) var(--space-lg);
  border: 2px solid transparent;
  background: rgba(255, 255, 255, 0.8);
  color: var(--gray-700);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.method-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(135deg, var(--gray-400), var(--gray-500));
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: xor;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.method-btn:hover {
  color: var(--orange-primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(230, 121, 56, 0.1);
}

.method-btn:hover::before {
  opacity: 1;
}

.method-btn.active {
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(230, 121, 56, 0.2);
}

.method-btn.active::before {
  opacity: 0;
}

.api-tester {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.08),
    0 8px 25px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.3);
  position: relative;
  overflow: hidden;
}

.api-tester::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(230, 121, 56, 0.3), transparent);
}

.input-section {
  position: relative;
}

.method-panel {
  display: none;
  opacity: 0;
  transform: translateX(-20px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.method-panel.active {
  display: block;
  opacity: 1;
  transform: translateX(0);
  animation: slideInLeft 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideInLeft {
  0% {
    opacity: 0;
    transform: translateX(-30px) scale(0.95);
  }
  100% {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

.method-panel .form-group {
  margin-bottom: var(--space-lg);
}

.method-panel .form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  color: var(--gray-700);
}

.method-panel .form-group input,
.method-panel .form-group textarea {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  border: 2px solid rgba(229, 229, 234, 0.6);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  font-weight: 400;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.method-panel .form-group input::placeholder,
.method-panel .form-group textarea::placeholder {
  color: var(--gray-400);
  transition: color 0.3s ease;
}

.method-panel .form-group input:hover,
.method-panel .form-group textarea:hover {
  border-color: rgba(230, 121, 56, 0.3);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.method-panel .form-group input:focus,
.method-panel .form-group textarea:focus {
  outline: none;
  border-color: var(--orange-primary);
  background: rgba(255, 255, 255, 0.95);
  transform: translateY(-2px);
  box-shadow: 
    0 8px 25px rgba(230, 121, 56, 0.15),
    0 0 0 3px rgba(230, 121, 56, 0.1);
}

.method-panel .form-group input:focus::placeholder,
.method-panel .form-group textarea:focus::placeholder {
  color: var(--gray-300);
}

.api-test-btn {
  margin-top: var(--space-xl);
  width: 100%;
  position: relative;
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  border: none;
  border-radius: var(--radius-lg);
  color: white;
  font-weight: 600;
  font-size: var(--font-size-base);
  cursor: pointer;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 
    0 8px 25px rgba(230, 121, 56, 0.25),
    0 4px 12px rgba(0, 0, 0, 0.1);
}

.api-test-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.api-test-btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 
    0 12px 35px rgba(230, 121, 56, 0.3),
    0 6px 16px rgba(0, 0, 0, 0.12);
}

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

.api-test-btn:active {
  transform: translateY(-1px) scale(1.01);
}

.api-test-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.api-test-btn:disabled:hover {
  transform: none;
  box-shadow: 
    0 8px 25px rgba(230, 121, 56, 0.25),
    0 4px 12px rgba(0, 0, 0, 0.1);
}

.result-section {
  border-left: 3px solid rgba(230, 121, 56, 0.2);
  padding-left: var(--space-xl);
  position: relative;
}

.result-section::before {
  content: '';
  position: absolute;
  left: -3px;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--orange-primary), var(--orange-secondary));
  border-radius: 2px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.result-section:hover::before {
  opacity: 1;
}

.result-header {
  margin-bottom: var(--space-lg);
  position: relative;
}

.result-header h4 {
  color: var(--gray-800);
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.result-header h4::before {
  content: '🔍';
  font-size: var(--font-size-base);
}

.result-content {
  background: linear-gradient(135deg, var(--gray-50), rgba(255, 255, 255, 0.8));
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  min-height: 320px;
  font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
  font-size: var(--font-size-sm);
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-y: auto;
  border: 2px solid rgba(229, 229, 234, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  box-shadow: 
    inset 0 1px 3px rgba(0, 0, 0, 0.04),
    0 2px 8px rgba(0, 0, 0, 0.04);
}

.result-content:hover {
  border-color: rgba(230, 121, 56, 0.3);
  box-shadow: 
    inset 0 1px 3px rgba(0, 0, 0, 0.04),
    0 4px 16px rgba(0, 0, 0, 0.06);
}

.result-content::-webkit-scrollbar {
  width: 8px;
}

.result-content::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.02);
  border-radius: 4px;
}

.result-content::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  border-radius: 4px;
  transition: background 0.3s ease;
}

.result-content::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--orange-secondary), var(--orange-primary));
}

.result-placeholder {
  color: var(--gray-500);
  font-style: italic;
  text-align: center;
  margin-top: var(--space-xl);
}

/* JSON Syntax Highlighting */
.json-key {
  color: var(--orange-primary);
  font-weight: 600;
}

.json-string {
  color: #22863a;
}

.json-number {
  color: #005cc5;
}

.json-boolean {
  color: #d73a49;
  font-weight: 600;
}

.json-null {
  color: #6f42c1;
  font-weight: 600;
}

/* Result status indicators */
.result-success {
  border-left-color: #28a745;
}

.result-error {
  border-left-color: #dc3545;
}

.result-warning {
  border-left-color: #ffc107;
}

/* Animated dots for loading */
.loading-dots::after {
  content: '';
  animation: loadingDots 1.5s infinite;
}

@keyframes loadingDots {
  0%, 20% { content: '.'; }
  40% { content: '..'; }
  60% { content: '...'; }
  80%, 100% { content: ''; }
}

.result-success {
  color: var(--green-600);
}

.result-error {
  color: var(--red-600);
}

.error-result {
  color: var(--red-600);
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin: var(--space-sm) 0;
  text-align: center;
  font-weight: 500;
}

.loading-result {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--orange-primary);
  padding: var(--space-xl);
  text-align: center;
  font-weight: 500;
}

.loading-result::before {
  content: '';
  width: 32px;
  height: 32px;
  border: 3px solid rgba(230, 121, 56, 0.2);
  border-top: 3px solid var(--orange-primary);
  border-radius: 50%;
  animation: modernSpin 1.2s cubic-bezier(0.4, 0, 0.2, 1) infinite;
  margin-bottom: var(--space-md);
}

.loading-result::after {
  content: 'Обрабатываем ваш запрос...';
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  animation: pulse 2s ease-in-out infinite alternate;
}

@keyframes modernSpin {
  0% { 
    transform: rotate(0deg) scale(1);
  }
  50% {
    transform: rotate(180deg) scale(1.1);
  }
  100% { 
    transform: rotate(360deg) scale(1);
  }
}

@keyframes pulse {
  0% { opacity: 0.7; }
  100% { opacity: 1; }
}

/* Enhanced glassmorphism effects */
.glass-card {
  position: relative;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
  border-radius: inherit;
  pointer-events: none;
}

/* Pulse animation for important elements */
@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(230, 121, 56, 0.4);
  }
  50% {
    box-shadow: 0 0 0 20px rgba(230, 121, 56, 0);
  }
}

.btn-primary:focus {
  animation: pulse 1.5s infinite;
}

/* Smooth reveal animations */
.section {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s ease;
}

.section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Loading states */
.loading-skeleton {
  background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Enhanced hover effects */
.task-card,
.advantage-card,
.benefit-card,
.source-item {
  cursor: pointer;
}

.task-card:active,
.advantage-card:active,
.benefit-card:active {
  transform: translateY(-4px) scale(0.98);
}

/* Gradient backgrounds */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 30% 20%, rgba(230, 121, 56, 0.15) 0%, transparent 60%),
    radial-gradient(circle at 70% 80%, rgba(255, 107, 53, 0.1) 0%, transparent 60%);
  pointer-events: none;
  z-index: 1;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-secondary));
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--orange-dark), var(--orange-primary));
}

/* Enhanced accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus management */
*:focus {
  outline: 2px solid var(--orange-primary);
  outline-offset: 2px;
}

.btn:focus,
.nav-link:focus,
input:focus,
textarea:focus {
  outline: 3px solid var(--orange-primary);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --gray-600: #000000;
    --gray-800: #000000;
    --shadow-small: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 4px 24px rgba(0, 0, 0, 0.4);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .scroll-line {
    animation: none;
  }
  
  .hero-background {
    transform: none !important;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --gray-50: #1a1a1a;
    --gray-100: #2d2d2d;
    --gray-200: #404040;
    --gray-300: #6b6b6b;
    --gray-400: #8e8e93;
    --gray-500: #aeaeb2;
    --gray-600: #c7c7cc;
    --gray-700: #e5e5ea;
    --gray-800: #f2f2f7;
    --gray-900: #fafafa;
  }
  
  body {
    background: var(--gray-100);
    color: var(--gray-800);
  }
  
  .navbar {
    background: rgba(26, 26, 26, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .hero {
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-50) 50%, rgba(230, 121, 56, 0.05) 100%);
  }
  
  .task-card,
  .advantage-card,
  .benefit-card,
  .source-item,
  .possibilities-tabs {
    background: var(--gray-100);
    border-color: var(--gray-300);
  }
  
  .contact-form {
    background: rgba(26, 26, 26, 0.1);
  }
}

/* Loading indicator */
.loading-indicator {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange-primary), var(--orange-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
  z-index: 10001;
}

.loading-indicator.active {
  transform: scaleX(1);
}

/* Improved tooltips */
[data-tooltip] {
  position: relative;
}

[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gray-900);
  color: white;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  z-index: 1000;
  opacity: 0;
  animation: fadeIn 0.2s ease forwards;
}

/* Enhanced button states */
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn:not(:disabled):active {
  transform: translateY(1px);
}

/* Improved selection styles */
::selection {
  background: rgba(230, 121, 56, 0.2);
  color: var(--gray-900);
}

::-moz-selection {
  background: rgba(230, 121, 56, 0.2);
  color: var(--gray-900);
}

/* Progressive enhancement */
.no-js .animate-on-scroll,
.no-js [data-aos] {
  opacity: 1 !important;
  transform: none !important;
}

/* Print styles */
@media print {
  .navbar,
  .hero-buttons,
  .scroll-indicator,
  .btn,
  .hamburger {
    display: none !important;
  }
  
  .section {
    break-inside: avoid;
    page-break-inside: avoid;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
  
  .hero {
    min-height: auto;
    padding: 2rem 0;
  }
  
  .task-card,
  .advantage-card,
  .benefit-card,
  .source-item {
    box-shadow: none !important;
    border: 1px solid #ccc !important;
  }
}

/* ============================================================
   3D EFFECTS & ENHANCEMENTS FOR BEAUTY
   ============================================================ */

/* 3D Effects for Logo Items */
.floating-logos {
  perspective: 1000px;
}

.logo-item {
  transform-style: preserve-3d;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.logo-item:hover {
  transform: translateZ(20px) rotateY(10deg) rotateX(5deg);
  filter: drop-shadow(0 20px 40px rgba(230, 121, 56, 0.15));
}

.company-logo {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.logo-item:hover .company-logo {
  transform: scale(1.1) translateZ(10px);
  filter: brightness(1.1) saturate(1.2);
}

/* 3D Effects for Buttons */
.btn {
  transform-style: preserve-3d;
  perspective: 1000px;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.05));
  transform: translateZ(-1px);
  transition: all 0.3s ease;
  border-radius: inherit;
}

.btn:hover {
  transform: translateY(-3px) translateZ(10px);
  box-shadow: 
    0 10px 30px rgba(0, 0, 0, 0.1),
    0 20px 60px rgba(230, 121, 56, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
  box-shadow: 
    0 10px 30px rgba(230, 121, 56, 0.3),
    0 20px 60px rgba(230, 121, 56, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn:active {
  transform: translateY(-1px) translateZ(5px);
}

/* 3D Effects for Task Cards */
.task-card {
  transform-style: preserve-3d;
  perspective: 1000px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.task-card:hover {
  transform: translateY(-10px) rotateX(5deg) rotateY(2deg) translateZ(20px);
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.15),
    0 30px 80px rgba(230, 121, 56, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.task-icon {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.task-card:hover .task-icon {
  transform: translateZ(15px) rotateY(10deg) scale(1.1);
  filter: drop-shadow(0 10px 20px rgba(230, 121, 56, 0.3));
}

/* 3D Effects for Glass Cards */
.glass-card {
  transform-style: preserve-3d;
  perspective: 1000px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card:hover {
  transform: translateY(-8px) rotateX(3deg) translateZ(15px);
  box-shadow: 
    0 15px 50px rgba(0, 0, 0, 0.1),
    0 25px 70px rgba(230, 121, 56, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
}



/* Enhanced Scroll Indicator with 3D */
.scroll-indicator {
  transform-style: preserve-3d;
  perspective: 500px;
}

.scroll-indicator:hover {
  transform: translateZ(10px);
}

.scroll-line {
  transition: all 0.3s ease;
}

.scroll-indicator:hover .scroll-line {
  transform: rotateX(10deg) translateZ(5px);
  box-shadow: 0 5px 15px rgba(230, 121, 56, 0.3);
}

/* 3D Navigation Effects */
.nav-link {
  transform-style: preserve-3d;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover {
  transform: translateY(-2px) translateZ(5px);
  text-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.logo-svg {
  transform-style: preserve-3d;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.logo-svg:hover {
  transform: translateY(-2px) rotateY(5deg) translateZ(8px);
  filter: drop-shadow(0 8px 20px rgba(230, 121, 56, 0.2));
}

/* 3D Source Items */
.source-item {
  transform-style: preserve-3d;
  perspective: 800px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.source-item:hover {
  transform: translateY(-8px) rotateX(5deg) translateZ(15px);
  box-shadow: 
    0 15px 40px rgba(0, 0, 0, 0.1),
    0 25px 60px rgba(230, 121, 56, 0.08);
}

.source-logo {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.source-item:hover .source-logo {
  transform: translateZ(10px) scale(1.05);
}

/* 3D Benefit Cards */
.benefit-card {
  transform-style: preserve-3d;
  perspective: 1000px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.benefit-card:hover {
  transform: translateY(-12px) rotateX(5deg) rotateY(3deg) translateZ(20px);
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.15),
    0 30px 80px rgba(230, 121, 56, 0.1);
}

.benefit-icon {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.benefit-card:hover .benefit-icon {
  transform: translateZ(15px) rotateY(10deg) scale(1.1);
  filter: drop-shadow(0 10px 25px rgba(230, 121, 56, 0.25));
}

/* 3D Tab Buttons */
.tab-btn, .method-btn, .category-btn {
  transform-style: preserve-3d;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-btn:hover, .method-btn:hover, .category-btn:hover {
  transform: translateY(-3px) translateZ(8px);
  box-shadow: 
    0 8px 25px rgba(0, 0, 0, 0.1),
    0 15px 35px rgba(230, 121, 56, 0.1);
}

.tab-btn.active, .method-btn.active, .category-btn.active {
  transform: translateZ(5px);
  box-shadow: 
    0 5px 20px rgba(230, 121, 56, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

/* Reduced Motion Support for 3D Effects */
@media (prefers-reduced-motion: reduce) {
  .logo-item:hover,
  .task-card:hover,
  .glass-card:hover,
  .benefit-card:hover,
  .source-item:hover {
    transform: translateY(-2px) !important;
  }
}

/* Large Screens Optimization */
@media (min-width: 1400px) {
  .container {
    max-width: 1400px;
  }
  
  .try-now-categories {
    max-width: 1000px;
    margin: 0 auto var(--space-2xl);
  }
  
  .api-tester {
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .result-content {
    font-size: var(--font-size-base);
  }
  
  .method-panel .form-group input,
  .method-panel .form-group textarea {
    font-size: var(--font-size-base);
  }
  
  .category-btn {
    padding: var(--space-lg) var(--space-xl);
    font-size: var(--font-size-base);
  }
  
  .method-btn {
    padding: var(--space-md) var(--space-lg);
    font-size: var(--font-size-base);
  }
}

/* Touch-Friendly Styles */
@media (hover: none) and (pointer: coarse) {
  .category-btn,
  .method-btn,
  .api-test-btn,
  .nav-link,
  .btn {
    min-height: 44px;
    min-width: 44px;
    padding: var(--space-md) var(--space-lg);
  }
  
  .task-card,
  .benefit-card,
  .source-item {
    transition: none;
  }
  
  .task-card:hover,
  .benefit-card:hover,
  .source-item:hover {
    transform: none;
  }
  
  .result-content {
    -webkit-overflow-scrolling: touch;
  }
  
  .api-tester {
    padding: var(--space-lg);
  }
  
  .method-panel .form-group input,
  .method-panel .form-group textarea {
    font-size: 16px; /* Prevents zoom on iOS */
  }
}