/**
 * Block Boss - Modern Design System
 * Технологичный стиль в духе Vercel/Linear
 * 
 * Особенности:
 * - CSS Grid / Flexbox
 * - CSS Variables
 * - Градиенты и glow effects
 * - Glassmorphism
 * - Smooth animations
 * - Mobile-first responsive
 */

/* ============================================
   CSS VARIABLES (Design Tokens)
   ============================================ */

:root {
  /* Colors - Технологичная палитра */
  --color-primary: #7C3AED;        /* Фиолетовый */
  --color-primary-dark: #5B21B6;
  --color-primary-light: #A78BFA;
  
  --color-secondary: #06B6D4;      /* Cyan */
  --color-secondary-dark: #0891B2;
  --color-secondary-light: #22D3EE;
  
  --color-accent: #EC4899;         /* Pink */
  --color-accent-dark: #DB2777;
  
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  
  /* Neutral colors */
  --color-bg: #0A0A0A;             /* Почти черный */
  --color-bg-elevated: #1A1A1A;
  --color-bg-card: #1F1F1F;
  --color-bg-input: #262626;
  
  --color-text-primary: #FAFAFA;
  --color-text-secondary: #A1A1A1;
  --color-text-tertiary: #737373;
  
  --color-border: #2A2A2A;
  --color-border-light: #404040;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #7C3AED 0%, #06B6D4 100%);
  --gradient-accent: linear-gradient(135deg, #EC4899 0%, #7C3AED 100%);
  --gradient-hero: linear-gradient(180deg, rgba(124, 58, 237, 0.1) 0%, rgba(6, 182, 212, 0.05) 100%);
  
  /* Shadows & Glow */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
  
  --glow-primary: 0 0 20px rgba(124, 58, 237, 0.5);
  --glow-secondary: 0 0 20px rgba(6, 182, 212, 0.5);
  --glow-accent: 0 0 20px rgba(236, 72, 153, 0.5);
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */
  --font-size-6xl: 3.75rem;     /* 60px */
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Spacing */
  --spacing-1: 0.25rem;   /* 4px */
  --spacing-2: 0.5rem;    /* 8px */
  --spacing-3: 0.75rem;   /* 12px */
  --spacing-4: 1rem;      /* 16px */
  --spacing-5: 1.25rem;   /* 20px */
  --spacing-6: 1.5rem;    /* 24px */
  --spacing-8: 2rem;      /* 32px */
  --spacing-10: 2.5rem;   /* 40px */
  --spacing-12: 3rem;     /* 48px */
  --spacing-16: 4rem;     /* 64px */
  --spacing-20: 5rem;     /* 80px */
  --spacing-24: 6rem;     /* 96px */
  
  /* Border radius */
  --radius-sm: 0.375rem;  /* 6px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  --radius-2xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  
  /* Breakpoints (для JS) */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  background-image: 
    radial-gradient(at 0% 0%, rgba(124, 58, 237, 0.1) 0, transparent 50%),
    radial-gradient(at 100% 0%, rgba(6, 182, 212, 0.1) 0, transparent 50%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-4);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-6);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-text-primary);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  color: var(--color-text-primary);
}

h4 {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
}

p {
  margin-bottom: var(--spacing-4);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-secondary-light);
}

strong, b {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

/* ============================================
   LAYOUT CONTAINERS
   ============================================ */

.container {
  width: 100%;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-6);
  padding-right: var(--spacing-6);
}

@media (min-width: 640px) {
  .container {
    padding-left: var(--spacing-8);
    padding-right: var(--spacing-8);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--spacing-12);
    padding-right: var(--spacing-12);
  }
}

@media (min-width: 1600px) {
  .container {
    max-width: 1600px;
  }
}

.section {
  padding-top: var(--spacing-16);
  padding-bottom: var(--spacing-16);
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--spacing-20);
    padding-bottom: var(--spacing-20);
  }
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-4) 0;
  transition: all var(--transition-base);
}

.site-header.scrolled {
  padding: var(--spacing-3) 0;
  box-shadow: var(--shadow-lg);
}

.header-container {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--spacing-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  transition: transform var(--transition-fast);
}

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

.logo img {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1); /* Делаем логотип белым */
}

.site-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin: 0;
}

@media (max-width: 768px) {
  .site-title {
    display: none;
  }
}

.contacts {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--spacing-1);
  font-size: var(--font-size-sm);
}

.contacts a {
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.contacts a:hover {
  color: var(--color-primary-light);
  transform: translateX(-2px);
}

.phone {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

/* ============================================
   NAVIGATION MENU
   ============================================ */

.nav-menu-container {
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-1);
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
}

.nav-menu a {
  display: block;
  padding: var(--spacing-2) var(--spacing-3);
  font-size: 13px;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-menu a:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-elevated);
}

.nav-menu a.active {
  color: var(--color-primary-light);
  background: rgba(124, 58, 237, 0.1);
}

@media (max-width: 1280px) {
  .nav-menu a {
    padding: var(--spacing-2) var(--spacing-2);
    font-size: 12px;
  }
}

@media (max-width: 1024px) {
  .nav-menu {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-2);
  }
  
  .nav-menu a {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    gap: var(--spacing-1);
  }
  
  .nav-menu a {
    padding: var(--spacing-2) var(--spacing-2);
    font-size: 11px;
  }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  position: relative;
  padding-top: var(--spacing-20);
  padding-bottom: var(--spacing-16);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 0.8; }
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-8);
  align-items: start;
  position: relative;
  z-index: 1;
}

@media (min-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
  }
}

.hero-content {
  animation: fadeInUp 0.8s ease-out;
}

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

.hero-title {
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.1;
  margin-bottom: var(--spacing-6);
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-8);
  line-height: var(--line-height-relaxed);
}

.hero-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-4);
  margin-top: var(--spacing-8);
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.hero-feature:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--glow-primary);
}

.hero-feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
}

.hero-feature-text {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

/* ============================================
   SLIDER
   ============================================ */

.slider-wrapper {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
}

.slider-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-hero);
  pointer-events: none;
  z-index: 1;
}

#iview {
  margin: 0;
  border-radius: var(--radius-2xl);
}

/* ============================================
   FORMS (Glassmorphism Style)
   ============================================ */

.form-card {
  background: rgba(31, 31, 31, 0.6);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  padding: var(--spacing-8);
  box-shadow: var(--shadow-xl);
  animation: fadeInUp 0.8s ease-out 0.2s both;
  position: sticky;
  top: 100px;
}

@media (max-width: 1023px) {
  .form-card {
    position: static;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
  }
}

.form-card h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-2);
  text-align: center;
}

.form-card p {
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-6);
}

.form-group {
  margin-bottom: var(--spacing-5);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-2);
  transition: color var(--transition-fast);
}

.form-input {
  width: 100%;
  padding: var(--spacing-4);
  font-size: var(--font-size-base);
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.form-input::placeholder {
  color: var(--color-text-tertiary);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--glow-primary);
  background: var(--color-bg-elevated);
}

.form-input:hover:not(:focus) {
  border-color: var(--color-border-light);
}

.form-input.error {
  border-color: var(--color-error);
}

.form-input:focus + .form-label,
.form-input:not(:placeholder-shown) + .form-label {
  color: var(--color-primary-light);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-4) var(--spacing-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-sans);
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Primary Button */
.btn-primary {
  color: #FFFFFF;
  background: var(--gradient-primary);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

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

.btn-primary:active {
  transform: translateY(0);
}

/* Large Button */
.btn-lg {
  padding: var(--spacing-5) var(--spacing-8);
  font-size: var(--font-size-lg);
}

/* Full Width Button */
.btn-block {
  width: 100%;
}

/* ============================================
   CARDS & CONTENT SECTIONS
   ============================================ */

.content-section {
  display: block;
  max-width: 100%;
}

@media (min-width: 1024px) {
  .content-section {
    max-width: 1200px;
    margin: 0 auto;
  }
}

.content-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-8);
  width: 100%;
}

/* Убрали hover эффект - текстовый блок не нуждается в анимации */

/* ============================================
   FEATURE GRID (Isotope replacement)
   ============================================ */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr); /* Мобильная: 2 колонки */
  gap: var(--spacing-4);
  margin-top: var(--spacing-8);
  list-style: none;
  grid-auto-flow: dense; /* Автоматически заполняет пустоты */
}

@media (min-width: 768px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr); /* Планшет: 3 колонки */
  }
}

@media (min-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(4, 1fr); /* Десктоп: 4 колонки */
    gap: var(--spacing-6);
  }
}

@media (min-width: 1400px) {
  .feature-grid {
    grid-template-columns: repeat(4, 1fr); /* Большие экраны: 4 колонки */
    gap: var(--spacing-8);
  }
}

.feature-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); /* Более плавный переход */
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.feature-item:hover {
  box-shadow: 0 8px 20px rgba(124, 58, 237, 0.3), 
              0 0 15px rgba(6, 182, 212, 0.2);
  transform: translateY(-2px); /* Меньше подъем - плавнее */
}

.feature-item.large {
  grid-column: span 2;
  grid-row: span 2;
}

.feature-back {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-4);
  font-size: clamp(0.875rem, 2vw, 1.125rem);
  font-weight: var(--font-weight-bold);
  text-align: center;
  color: white;
  background: var(--gradient-primary);
  background-size: cover;
  background-position: center;
  transition: all var(--transition-base);
  opacity: 0.6; /* Более яркий фон */
}

/* Оверлей для лучшей читаемости текста */
.feature-back::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(20, 10, 40, 0.85) 0%, rgba(10, 30, 50, 0.85) 100%);
  transition: opacity var(--transition-base);
  opacity: 0.95; /* Очень темный оверлей для максимального контраста белого текста */
}

.feature-back > div {
  position: relative;
  z-index: 1;
  color: #ffffff; /* Чистый белый для максимального контраста */
  font-weight: 900; /* Максимально жирный шрифт */
  font-size: clamp(1.125rem, 3vw, 1.75rem); /* Еще крупнее */
  text-shadow: 
    0 2px 4px rgba(0, 0, 0, 1),
    0 4px 8px rgba(0, 0, 0, 1),
    0 6px 12px rgba(0, 0, 0, 0.9),
    0 8px 16px rgba(0, 0, 0, 0.8),
    0 0 8px rgba(0, 255, 255, 0.4); /* Минимальное свечение, акцент на контрасте */
  letter-spacing: 0.05em;
  text-transform: uppercase; /* Заглавные буквы для лучшей читаемости */
}

.feature-hover {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-4);
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  opacity: 0;
  transform: scale(0.9);
  transition: all var(--transition-base);
}

.feature-hover a {
  color: var(--color-primary-light);
  font-size: var(--font-size-sm);
  text-align: center;
  padding: var(--spacing-4);
}

.feature-item:hover .feature-hover {
  opacity: 1;
  transform: scale(1);
}

.feature-item:hover .feature-back {
  transform: scale(1.05);
  opacity: 1; /* Полная яркость при наведении */
  filter: brightness(1.1) saturate(1.2); /* Усиливаем яркость и насыщенность */
}

.feature-item:hover .feature-back::before {
  opacity: 0.88; /* Чуть светлее при hover, чтобы лучше видеть фон */
}

.feature-item:hover .feature-back > div {
  /* Усиливаем контраст при hover */
  color: #ffffff;
  text-shadow: 
    0 2px 6px rgba(0, 0, 0, 1),
    0 4px 12px rgba(0, 0, 0, 1),
    0 6px 16px rgba(0, 0, 0, 1),
    0 8px 20px rgba(0, 0, 0, 0.9),
    0 0 12px rgba(0, 255, 255, 0.6); /* Легкое свечение только при hover */
  transform: scale(1.08); /* Увеличиваем текст */
}

/* ============================================
   PRICING
   ============================================ */
/* Старые стили для карточек удалены - теперь используется единый блок с факторами */

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  margin-top: var(--spacing-24);
  padding: var(--spacing-8) 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

.mt-4 { margin-top: var(--spacing-4); }
.mt-8 { margin-top: var(--spacing-8); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-8 { margin-bottom: var(--spacing-8); }

/* ============================================
   ANIMATIONS
   ============================================ */

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

@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);
  }
}

/* Scroll animations */
.fade-in {
  opacity: 0;
  animation: fadeIn 0.6s ease-out forwards;
}

.slide-in-left {
  opacity: 0;
  animation: slideInLeft 0.8s ease-out forwards;
}

.slide-in-right {
  opacity: 0;
  animation: slideInRight 0.8s ease-out forwards;
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */

@media (max-width: 767px) {
  .hide-mobile { display: none !important; }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .hide-tablet { display: none !important; }
}

@media (min-width: 1024px) {
  .hide-desktop { display: none !important; }
}

/* ============================================
   DARK MODE SUPPORT (optional)
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  body {
    background: white;
    color: black;
  }
  
  .site-header,
  .site-footer,
  .form-card,
  .btn {
    display: none;
  }
}