/* =============================================================================
   MODERN DESIGN SYSTEM - MOBILE-FIRST WITH PRELINE UI
   بازطراحی کامل با رویکرد Mobile-First و استفاده از Preline Components
   
   🎨 Features:
   - Vazirmatn Persian Font
   - GSAP Animations
   - Glassmorphism Effects
   - Hover Animations
   - Micro-interactions
   - Gradient Animations
   - Mobile-First Responsive Design
   ============================================================================= */

/* =============================================================================
   1. DESIGN TOKENS & CSS VARIABLES
   ============================================================================= */

:root {
  /* ===== Mobile-First Breakpoints ===== */
  --mobile: 320px;
  --mobile-lg: 480px;
  --tablet: 640px;
  --tablet-lg: 768px;
  --desktop: 1024px;
  --desktop-lg: 1280px;
  --wide: 1536px;

  /* ===== Touch Target Sizes (iOS & Android Guidelines) ===== */
  --tap-min: 44px;
  /* iOS Human Interface Guidelines */
  --tap-comfortable: 48px;
  /* Material Design */
  --tap-large: 56px;
  /* Primary CTAs */
  --tap-xl: 64px;
  /* Hero buttons */

  /* ===== Modern Color Palette (WCAG AA Compliant) ===== */
  /* Background & Surface Colors */
  --color-bg: #f8fafc;
  --color-bg-secondary: #f1f5f9;
  --color-surface: #ffffff;
  --color-surface-elevated: #ffffff;
  --color-surface-hover: #f8fafc;

  /* Border Colors */
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-border-hover: #cbd5e1;
  --color-border-focus: #0ea5e9;

  /* Text Colors (WCAG AA Compliant) */
  --color-text-primary: #0f172a;
  /* Contrast 16.5:1 */
  --color-text-secondary: #475569;
  /* Contrast 7.1:1 */
  --color-text-muted: #64748b;
  /* Contrast 4.5:1 */
  --color-text-disabled: #94a3b8;
  /* Contrast 3.1:1 */
  --color-text-white: #ffffff;

  /* ===== Brand Colors (Primary - Sky Blue) ===== */
  --color-primary-50: #f0f9ff;
  --color-primary-100: #e0f2fe;
  --color-primary-200: #bae6fd;
  --color-primary-300: #7dd3fc;
  --color-primary-400: #38bdf8;
  --color-primary-500: #0ea5e9;
  /* Main */
  --color-primary-600: #0284c7;
  --color-primary-700: #0369a1;
  --color-primary-800: #075985;
  --color-primary-900: #0c4a6e;

  /* ===== Semantic Colors ===== */
  --color-success: #22c55e;
  --color-success-light: #86efac;
  --color-success-dark: #16a34a;
  --color-success-bg: #f0fdf4;

  --color-warning: #f59e0b;
  --color-warning-light: #fcd34d;
  --color-warning-dark: #d97706;
  --color-warning-bg: #fffbeb;

  --color-danger: #ef4444;
  --color-danger-light: #fca5a5;
  --color-danger-dark: #dc2626;
  --color-danger-bg: #fef2f2;

  --color-info: #3b82f6;
  --color-info-light: #93c5fd;
  --color-info-dark: #2563eb;
  --color-info-bg: #eff6ff;

  /* ===== Typography Scale ===== */
  /* Mobile-First Font Sizes */
  --text-xs: 0.75rem;
  /* 12px */
  --text-sm: 0.875rem;
  /* 14px */
  --text-base: 1rem;
  /* 16px - Base for mobile */
  --text-lg: 1.125rem;
  /* 18px */
  --text-xl: 1.25rem;
  /* 20px */
  --text-2xl: 1.5rem;
  /* 24px */
  --text-3xl: 1.875rem;
  /* 30px - Mobile hero */
  --text-4xl: 2.25rem;
  /* 36px - Desktop hero */
  --text-5xl: 3rem;
  /* 48px - Large displays */

  /* Font Family - Shabnam Persian */
  --font-family-base: 'Vazirmatn', -apple-system, BlinkMacSystemFont, 'Segoe UI', Tahoma, Arial, sans-serif;
  --font-family-display: 'Vazirmatn', Tahoma, Arial, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* ===== Spacing Scale (Mobile-First) ===== */
  --space-0: 0;
  --space-1: 0.25rem;
  /* 4px */
  --space-2: 0.5rem;
  /* 8px */
  --space-3: 0.75rem;
  /* 12px */
  --space-4: 1rem;
  /* 16px - Base mobile spacing */
  --space-5: 1.25rem;
  /* 20px */
  --space-6: 1.5rem;
  /* 24px */
  --space-8: 2rem;
  /* 32px */
  --space-10: 2.5rem;
  /* 40px */
  --space-12: 3rem;
  /* 48px */
  --space-16: 4rem;
  /* 64px */
  --space-20: 5rem;
  /* 80px */
  --space-24: 6rem;
  /* 96px */

  /* ===== Border Radius ===== */
  --radius-none: 0;
  --radius-sm: 0.375rem;
  /* 6px */
  --radius-md: 0.5rem;
  /* 8px */
  --radius-lg: 0.75rem;
  /* 12px */
  --radius-xl: 1rem;
  /* 16px */
  --radius-2xl: 1.25rem;
  /* 20px */
  --radius-3xl: 1.5rem;
  /* 24px */
  --radius-full: 9999px;

  /* ===== Shadows (Mobile-Optimized) ===== */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);

  /* ===== Transitions & Animations ===== */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Easing Functions */
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* ===== Glassmorphism ===== */
  --glass-bg: rgba(255, 255, 255, 0.95);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-blur: 20px;

  /* ===== Z-Index Scale ===== */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* =============================================================================
   2. RESET & BASE STYLES (Mobile-First)
   ============================================================================= */

/* Modern CSS Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
}

/* Force Shabnam Font Everywhere */
*,
*::before,
*::after {
  font-family: 'Vazirmatn', -apple-system, BlinkMacSystemFont, 'Segoe UI', Tahoma, Arial, sans-serif !important;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Vazirmatn', -apple-system, BlinkMacSystemFont, 'Segoe UI', Tahoma, Arial, sans-serif !important;
  font-size: var(--text-base);
  font-weight: var(--font-normal);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  direction: rtl;
  text-align: right;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Focus Styles (Accessibility) */
*:focus {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
}

*:focus:not(:focus-visible) {
  outline: none;
}

*:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
}

/* Skip Links (Accessibility) */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary-500);
  color: white;
  padding: var(--space-2) var(--space-4);
  text-decoration: none;
  z-index: var(--z-tooltip);
}

.skip-link:focus {
  top: 0;
}

/* =============================================================================
   3. TYPOGRAPHY
   ============================================================================= */

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
}

/* Mobile-First Heading Sizes */
h1 {
  font-size: var(--text-3xl);
  font-weight: var(--font-extrabold);
}

h2 {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
}

h3 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
}

h4 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
}

h5 {
  font-size: var(--text-base);
  font-weight: var(--font-medium);
}

h6 {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
}

/* Desktop Heading Sizes */
@media (min-width: 768px) {
  h1 {
    font-size: var(--text-4xl);
  }

  h2 {
    font-size: var(--text-3xl);
  }

  h3 {
    font-size: var(--text-2xl);
  }

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

@media (min-width: 1024px) {
  h1 {
    font-size: var(--text-5xl);
  }
}

p {
  margin: 0;
  line-height: var(--leading-normal);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary-400);
  text-decoration: none;
}

a:focus {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
  text-decoration: none;
}

.muted {
  color: var(--color-text-muted);
}

.text-secondary {
  color: var(--color-text-secondary);
}

/* =============================================================================
   4. LAYOUT & CONTAINER
   ============================================================================= */

.container {
  width: 100%;
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 640px) {
  .container {
    max-width: 100%;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 100%;
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 1280px;
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

@media (min-width: 1400px) {
  .container {
    max-width: 1400px;
  }
}

@media (min-width: 1600px) {
  .container {
    max-width: 1520px;
  }
}

main {
  min-height: 100vh;
  padding-bottom: calc(var(--tap-large) + var(--space-4));
  /* Space for mobile bottom nav */
}

@media (min-width: 768px) {
  main {
    padding-bottom: var(--space-8);
  }
}

/* =============================================================================
   5. BUTTONS (Mobile-First, Touch-Optimized)
   ============================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--tap-comfortable);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  line-height: var(--leading-none);
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-base);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary Button */
.btn-primary,
.btn.primary {
  background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-600) 100%);
  color: var(--color-text-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover,
.btn.primary:hover {
  background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-700) 100%);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active,
.btn.primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Secondary/Outline Button */
.btn-outline,
.btn.outline {
  background: var(--color-surface);
  color: var(--color-primary-500);
  border-color: var(--color-primary-500);
}

.btn-outline:hover,
.btn.outline:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-600);
  color: var(--color-primary-600);
}

/* Ghost Button */
.btn-ghost,
.btn.ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover,
.btn.ghost:hover {
  background: var(--color-surface-hover);
  color: var(--color-text-primary);
}

/* Button Sizes */
.btn-sm {
  min-height: var(--tap-min);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
}

.btn-lg {
  min-height: var(--tap-large);
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-lg);
}

.btn-xl {
  min-height: var(--tap-xl);
  padding: var(--space-5) var(--space-8);
  font-size: var(--text-xl);
}

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

@media (min-width: 640px) {
  .btn-block {
    width: auto;
  }
}

/* =============================================================================
   6. CARDS (Mobile-Optimized)
   ============================================================================= */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-base);
}

@media (min-width: 768px) {
  .card {
    padding: var(--space-6);
    border-radius: var(--radius-2xl);
  }
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-hover);
}

/* Card Variants */
.card-elevated {
  box-shadow: var(--shadow-lg);
  border: none;
}

.card-flat {
  box-shadow: none;
  border: 1px solid var(--color-border-light);
}

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

/* Interactive Card */
.card-interactive {
  cursor: pointer;
  user-select: none;
}

.card-interactive:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card-interactive:active {
  transform: translateY(0);
}

/* =============================================================================
   7. FORMS (Mobile-First, Touch-Optimized)
   ============================================================================= */

.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="url"],
input[type="number"],
input[type="search"],
select,
textarea {
  display: block;
  width: 100%;
  min-height: var(--tap-comfortable);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  /* Prevent iOS zoom on focus */
  font-family: inherit;
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-disabled);
}

/* Textarea */
textarea {
  min-height: 120px;
  resize: vertical;
}

/* Select */
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left var(--space-3) center;
  background-size: 20px;
  padding-left: var(--space-10);
}

/* Validation States */
.form-error,
.form-success {
  font-size: var(--text-sm);
  margin-top: var(--space-1);
}

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

.form-success {
  color: var(--color-success);
}

input.error,
select.error,
textarea.error {
  border-color: var(--color-danger);
}

input.success,
select.success,
textarea.success {
  border-color: var(--color-success);
}

/* =============================================================================
   8. NAVIGATION (Mobile-First)
   ============================================================================= */

/* Header/Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  /* Smooth hide/show animation */
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 0.3s ease,
    opacity 0.3s ease;
}

/* Hidden state - smooth slide up */
.navbar.hide {
  transform: translateY(-100%);
  opacity: 0.95;
  pointer-events: none;
}

/* Scrolled state - add shadow */
.navbar.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--tap-large);
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

/* Logo */
.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  transition: transform var(--transition-base);
}

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

.logo-img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
}

@media (min-width: 768px) {
  .logo-img {
    width: 40px;
    height: 40px;
  }
}

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

/* Desktop Navigation */
.header-nav {
  display: none;
}

@media (min-width: 768px) {
  .header-nav {
    display: block;
    flex: 1;
  }
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  min-height: var(--tap-min);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.nav-icon {
  width: 16px;
  height: 16px;
}

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

.nav-link[aria-current="page"] {
  color: var(--color-primary-500);
  background: var(--color-primary-50);
}

/* Header Actions */
.header-actions {
  display: none;
}

@media (min-width: 768px) {
  .header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
  }
}

/* User Badge */
.user-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  background: var(--color-surface-hover);
  border-radius: var(--radius-md);
}

/* Mobile Bottom Navigation */
.mobile-bottom-nav {
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
  padding: var(--space-2) 0;
  safe-area-inset-bottom: env(safe-area-inset-bottom);
}

@media (min-width: 768px) {
  .mobile-bottom-nav {
    display: none;
  }
}

.mobile-bottom-nav .nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-height: var(--tap-comfortable);
  padding: var(--space-1) var(--space-2);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-base);
  -webkit-tap-highlight-color: transparent;
}

.mobile-bottom-nav .nav-item.active {
  color: var(--color-primary-500);
}

.mobile-bottom-nav .nav-icon {
  width: 24px;
  height: 24px;
  margin-bottom: var(--space-1);
}

.mobile-bottom-nav .nav-label {
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  text-align: center;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: var(--tap-comfortable);
  height: var(--tap-comfortable);
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translateY(8px);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translateY(-8px);
}

/* =============================================================================
   9. HERO SECTION (Mobile-Optimized)
   ============================================================================= */

.hero {
  padding: var(--space-8) 0;
}

@media (min-width: 768px) {
  .hero {
    padding: var(--space-12) 0;
  }
}

@media (min-width: 1024px) {
  .hero {
    padding: var(--space-16) 0;
  }
}

/* Glassmorphism Hero Card */
.telegram-hero,
.glass-hero {
  position: relative;
  padding: var(--space-5);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

@media (min-width: 768px) {

  .telegram-hero,
  .glass-hero {
    padding: var(--space-6);
    border-radius: var(--radius-3xl);
  }
}

/* =============================================================================
   10. SERVICE CARDS GRID
   ============================================================================= */

.service-cards-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}

@media (min-width: 640px) {
  .service-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .service-cards-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
}

.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-height: 120px;
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  cursor: pointer;
  overflow: hidden;
}

/* Background Icon for Service Cards */
.service-card-bg-icon {
  position: absolute;
  top: 50%;
  left: -40px;
  transform: translateY(-50%);
  width: 180px;
  height: 180px;
  opacity: 0.08;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  pointer-events: none;
  z-index: 0;
}

.service-card-bg-icon svg {
  width: 100%;
  height: 100%;
}

.service-card:hover .service-card-bg-icon {
  opacity: 0.15;
  transform: translateY(-50%) scale(1.1) rotate(5deg);
}

.service-card-content {
  position: relative;
  z-index: 1;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-300);
}

.service-card-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.service-card-description {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* Service Card Color Variants */
.service-card--primary {
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  color: white;
  border: none;
}

.service-card--primary .service-card-title,
.service-card--primary .service-card-description {
  color: white;
}

.service-card--secondary {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white;
  border: none;
}

.service-card--secondary .service-card-title,
.service-card--secondary .service-card-description {
  color: white;
}

.service-card--success {
  background: linear-gradient(135deg, var(--color-success), var(--color-success-dark));
  color: white;
  border: none;
}

.service-card--success .service-card-title,
.service-card--success .service-card-description {
  color: white;
}

/* =============================================================================
   11. TELEGRAM BUTTONS & CARDS
   ============================================================================= */

.telegram-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.telegram-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--tap-min);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  -webkit-tap-highlight-color: transparent;
}

.telegram-btn--support {
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
}

.telegram-btn--sales {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: white;
}

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

.telegram-btn-sales-btn,
.telegram-btn-support-btn,
.online-support-btn {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.9;
  }
}

/* =============================================================================
   12. ANIMATIONS & UTILITIES
   ============================================================================= */

/* Fade In */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

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

.fade-in {
  animation: fadeIn var(--transition-slow) var(--ease-out);
}

/* Slide In from Bottom */
@keyframes slideInBottom {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

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

.slide-in-bottom {
  animation: slideInBottom var(--transition-slow) var(--ease-out);
}

/* Loading Spinner */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* =============================================================================
   13. RESPONSIVE UTILITIES
   ============================================================================= */

/* Hide on Mobile */
.hidden-mobile {
  display: none;
}

@media (min-width: 768px) {
  .hidden-mobile {
    display: block;
  }
}

/* Hide on Desktop */
.hidden-desktop {
  display: block;
}

@media (min-width: 768px) {
  .hidden-desktop {
    display: none;
  }
}

/* Text Alignment */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

/* =============================================================================
   14. ACCESSIBILITY ENHANCEMENTS
   ============================================================================= */

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

/* Reduced Motion */
@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;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --color-border: #000000;
    --color-text-primary: #000000;
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
  }
}

/* Dark Mode Support (for future implementation) */
@media (prefers-color-scheme: dark) {
  /* Dark mode variables would go here */
}

/* =============================================================================
   15. FOOTER
   ============================================================================= */

.footer {
  margin-top: var(--space-16);
  padding: var(--space-8) 0;
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-8);
  }
}

.footer-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.footer-subtitle {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.footer-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer-links a:hover {
  color: var(--color-primary-500);
}

.footer-bottom {
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

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

/* =============================================================================
   16. MOBILE MENU OVERLAY
   ============================================================================= */

.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.mobile-menu-overlay.active {
  pointer-events: auto;
  opacity: 1;
}

.mobile-menu-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.mobile-menu-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 80%;
  max-width: 320px;
  background: var(--color-surface);
  box-shadow: var(--shadow-2xl);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
}

.mobile-menu-overlay.active .mobile-menu-panel {
  transform: translateX(0);
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu-title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
}

.mobile-menu-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--tap-min);
  height: var(--tap-min);
  padding: 0;
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.mobile-menu-close:hover {
  background: var(--color-surface-hover);
  color: var(--color-text-primary);
}

.mobile-menu-nav {
  display: flex;
  flex-direction: column;
  padding: var(--space-2);
}

.mobile-menu-link {
  display: flex;
  align-items: center;
  min-height: var(--tap-comfortable);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.mobile-menu-link:hover {
  background: var(--color-surface-hover);
  color: var(--color-text-primary);
}

.mobile-menu-link--primary {
  background: var(--color-primary-500);
  color: white;
  font-weight: var(--font-semibold);
  margin-top: var(--space-2);
}

.mobile-menu-link--primary:hover {
  background: var(--color-primary-600);
  color: white;
}

.mobile-menu-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-3) var(--space-4);
}

/* =============================================================================
   17. FLASH MESSAGES
   ============================================================================= */

.flash-message {
  padding: var(--space-4) 0;
  background: var(--color-info-bg);
  border-bottom: 1px solid var(--color-info);
}

.flash-message-content {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.flash-message-icon {
  flex-shrink: 0;
  color: var(--color-info);
}

.flash-message--info {
  background: var(--color-info-bg);
  border-color: var(--color-info);
}

.flash-message--info .flash-message-icon {
  color: var(--color-info);
}

.flash-message--success {
  background: var(--color-success-bg);
  border-color: var(--color-success);
}

.flash-message--success .flash-message-icon {
  color: var(--color-success);
}

.flash-message--warning {
  background: var(--color-warning-bg);
  border-color: var(--color-warning);
}

.flash-message--warning .flash-message-icon {
  color: var(--color-warning);
}

.flash-message--error {
  background: var(--color-danger-bg);
  border-color: var(--color-danger);
}

.flash-message--error .flash-message-icon {
  color: var(--color-danger);
}

/* =============================================================================
   18. TOAST NOTIFICATIONS
   ============================================================================= */

.toast-root {
  position: fixed;
  top: var(--space-4);
  left: var(--space-4);
  z-index: var(--z-tooltip);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: calc(100% - var(--space-8));
  pointer-events: none;
}

@media (min-width: 768px) {
  .toast-root {
    max-width: 400px;
  }
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: slideInLeft var(--transition-base);
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-100%);
  }

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

.toast-success {
  background: var(--color-success-bg);
  border-color: var(--color-success);
  color: var(--color-success-dark);
}

.toast-error {
  background: var(--color-danger-bg);
  border-color: var(--color-danger);
  color: var(--color-danger-dark);
}

.toast-warning {
  background: var(--color-warning-bg);
  border-color: var(--color-warning);
  color: var(--color-warning-dark);
}

.toast-info {
  background: var(--color-info-bg);
  border-color: var(--color-info);
  color: var(--color-info-dark);
}

/* =============================================================================
   19. LEGACY COMPATIBILITY & ADDITIONAL COMPONENTS
   ============================================================================= */

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .grid {
    gap: var(--space-6);
  }
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  line-height: 1;
  color: var(--color-text-white);
  background: var(--color-primary-500);
  border-radius: var(--radius-full);
}

/* Modal/Dialog */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal-backdrop);
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: var(--z-modal);
  width: calc(100% - var(--space-8));
  max-width: 500px;
  max-height: calc(100vh - var(--space-8));
  padding: var(--space-6);
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  overflow-y: auto;
}

/* Divider */
.divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-4) 0;
}

/* Alert Component */
.alert {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid;
  margin: var(--space-4) 0;
}

.alert-success {
  background: var(--color-success-bg);
  color: var(--color-success-dark);
  border-color: var(--color-success);
}

.alert-error {
  background: var(--color-danger-bg);
  color: var(--color-danger-dark);
  border-color: var(--color-danger);
}

.alert-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning-dark);
  border-color: var(--color-warning);
}

.alert-info {
  background: var(--color-info-bg);
  color: var(--color-info-dark);
  border-color: var(--color-info);
}

/* FAB (Floating Action Button) */
.fab {
  position: fixed;
  bottom: calc(var(--mobile-nav-height) + var(--space-4));
  left: var(--space-4);
  z-index: var(--z-fixed);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--tap-large);
  padding: var(--space-3) var(--space-4);
  background: var(--color-primary-500);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  -webkit-tap-highlight-color: transparent;
}

@media (min-width: 768px) {
  .fab {
    bottom: var(--space-6);
  }
}

.fab:hover {
  background: var(--color-primary-600);
  box-shadow: var(--shadow-xl);
  transform: translateY(-2px);
}

.hidden-sm {
  display: none;
}

@media (min-width: 640px) {
  .hidden-sm {
    display: inline;
  }
}

/* =============================================================================
   END OF MOBILE-FIRST DESIGN SYSTEM
   ============================================================================= */