/* =============================================================================
   BLUE ASHER - STUNNING MODERN DESIGN
   Inspired by Linear, Figma, and the most beautiful interfaces of 2024
   Every pixel crafted for pure visual delight
   ============================================================================= */

/* =============================================================================
   DESIGN TOKENS - LCH COLOR SYSTEM
   ============================================================================= */
:root {
  /* LCH Color System - Perceptually uniform */
  /* Blue Asher Brand Colors */
  --color-bg: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-tertiary: #f1f5f9;
  --color-bg-blue: #1e40af;
  --color-bg-blue-light: #eff6ff;

  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;
  --color-border-focus: #3b82f6;

  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-tertiary: #64748b;
  --color-text-quaternary: #94a3b8;
  --color-text-white: #ffffff;

  /* Blue Asher Blue Spectrum */
  --color-blue-50: #eff6ff;
  --color-blue-100: #dbeafe;
  --color-blue-200: #bfdbfe;
  --color-blue-300: #93c5fd;
  --color-blue-400: #60a5fa;
  --color-blue-500: #3b82f6;
  --color-blue-600: #2563eb;
  --color-blue-700: #1d4ed8;
  --color-blue-800: #1e40af;
  --color-blue-900: #1e3a8a;

  /* Accent Colors */
  --color-purple-500: #7c3aed;
  --color-purple-100: #ede9fe;
  --color-green-500: #10b981;
  --color-green-100: #dcfce7;
  --color-orange-500: #f59e0b;
  --color-red-500: #ef4444;

  /* Advanced Typography */
  --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  --font-family-display: 'Inter Display', var(--font-family-sans);
  --font-family-mono: 'JetBrains Mono', 'SF Mono', 'Monaco', 'Cascadia 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-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Perfect Spacing System */
  --space-px: 1px;
  --space-0-5: 0.125rem;  /* 2px */
  --space-1: 0.25rem;     /* 4px */
  --space-1-5: 0.375rem;  /* 6px */
  --space-2: 0.5rem;      /* 8px */
  --space-2-5: 0.625rem;  /* 10px */
  --space-3: 0.75rem;     /* 12px */
  --space-3-5: 0.875rem;  /* 14px */
  --space-4: 1rem;        /* 16px */
  --space-5: 1.25rem;     /* 20px */
  --space-6: 1.5rem;      /* 24px */
  --space-7: 1.75rem;     /* 28px */
  --space-8: 2rem;        /* 32px */
  --space-9: 2.25rem;     /* 36px */
  --space-10: 2.5rem;     /* 40px */
  --space-12: 3rem;       /* 48px */
  --space-14: 3.5rem;     /* 56px */
  --space-16: 4rem;       /* 64px */
  --space-20: 5rem;       /* 80px */

  /* Border Radius - Organic feeling */
  --radius-xs: 0.25rem;   /* 4px */
  --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-3xl: 2rem;     /* 32px */
  --radius-full: 9999px;

  /* Stunning Shadows - Layered depth */
  --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);

  /* Glassmorphism Effects */
  --glass-blur: blur(16px);
  --glass-blur-strong: blur(24px);
  --glass-border: 1px solid rgba(255, 255, 255, 0.2);

  /* Physics-based Animations */
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);

  --duration-instant: 0.1s;
  --duration-fast: 0.2s;
  --duration-normal: 0.3s;
  --duration-slow: 0.5s;
  --duration-slower: 0.8s;
}

/* =============================================================================
   RESET & BASE - PERFECT FOUNDATION
   ============================================================================= */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  height: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  color: var(--color-text-primary);
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-secondary) 100%);
  height: 100vh;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
}

/* Custom Selection */
::selection {
  background: var(--color-blue-100);
  color: var(--color-blue-900);
}

::-moz-selection {
  background: var(--color-blue-100);
  color: var(--color-blue-900);
}

/* Focus Ring System */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-blue-500);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* =============================================================================
   APP LAYOUT
   ============================================================================= */
.app {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

/* =============================================================================
   HEADER
   ============================================================================= */
.header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 0 var(--space-6);
  flex-shrink: 0;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo h1 {
  font-family: var(--font-family-display);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-white);
  letter-spacing: -0.02em;
  transition: transform 0.2s ease;
}

.logo h1:hover {
  transform: scale(1.02);
}

/* =============================================================================
   TAB NAVIGATION
   ============================================================================= */
.tab-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  padding: var(--space-1);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: transparent;
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.tab-btn:hover {
  color: var(--color-text-white);
  background: rgba(255, 255, 255, 0.1);
}

.tab-btn.active {
  color: var(--color-text-primary);
  background: var(--color-text-white);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.tab-icon {
  width: 16px;
  height: 16px;
  transition: color 0.2s ease;
}

/* =============================================================================
   HEADER ACTIONS
   ============================================================================= */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* =============================================================================
   MAIN CONTENT
   ============================================================================= */
.main {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.tab-content {
  height: 100%;
  overflow: hidden;
  display: none;
  flex-direction: column;
}

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

/* =============================================================================
   SEARCH SECTION
   ============================================================================= */
.search-section {
  padding: var(--space-6);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.search-container {
  max-width: 1200px;
  margin: 0 auto;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-3) var(--space-4);
  transition: all var(--transition-base);
}

.search-input-wrapper:focus-within {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
}

.search-icon {
  color: var(--color-text-tertiary);
  margin-right: var(--space-3);
  width: 18px;
  height: 18px;
  transition: color 0.2s ease;
}

.search-input-wrapper:focus-within .search-icon {
  color: var(--color-blue-600);
}

.search-input {
  flex: 1;
  border: none;
  background: none;
  outline: none;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
}

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

.ai-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-left: var(--space-3);
}

.ai-toggle:hover {
  background: var(--color-bg-secondary);
  border-color: var(--color-blue-500);
  color: var(--color-blue-700);
}

.ai-toggle[data-active="true"] {
  background: var(--color-blue-600);
  border-color: var(--color-blue-600);
  color: var(--color-text-white);
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

.ai-icon {
  font-size: var(--font-size-sm);
}

/* =============================================================================
   SEARCH RESULTS INFO
   ============================================================================= */
.search-results-info {
  padding: var(--space-4) var(--space-6);
  background: var(--color-blue-light);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.search-results-info .results-text {
  max-width: 1200px;
  margin: 0 auto;
  font-size: var(--font-size-sm);
  color: var(--color-blue);
  font-weight: 500;
}

/* =============================================================================
   CONTENT SECTION
   ============================================================================= */
.content-section {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-6);
}

.contacts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
}

/* =============================================================================
   CONTACT CARDS
   ============================================================================= */
.contact-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all 0.2s ease;
  cursor: pointer;
  position: relative;
  min-height: 140px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-card:hover {
  border-color: var(--color-blue-500);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.contact-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.contact-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: white;
  flex-shrink: 0;
  box-shadow:
    var(--shadow-lg),
    0 0 20px rgba(37, 99, 235, 0.15);
  transition: all 0.3s var(--ease-out-quart);
  position: relative;
  overflow: hidden;
}

.contact-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.contact-avatar::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.1) 0%,
    transparent 50%,
    rgba(255, 255, 255, 0.05) 100%
  );
  border-radius: 50%;
  z-index: 1;
  pointer-events: none;
}


.contact-info {
  flex: 1;
  min-width: 0;
  max-width: calc(100% - 60px);
  overflow: hidden;
}

.contact-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  line-height: 1.2;
}

.contact-role {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.3;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
}

.contact-at {
  color: var(--color-text-tertiary);
  font-weight: 400;
  font-size: var(--font-size-sm);
  margin: 0 3px;
}

.contact-company {
  color: var(--color-text-primary);
  font-weight: 500;
}

.contact-actions {
  display: flex;
  gap: var(--space-2);
  margin-top: auto;
}

.contact-action-btn {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.contact-action-btn:hover {
  background: var(--color-bg);
  border-color: var(--color-blue-500);
  color: var(--color-blue-700);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.contact-action-btn.linkedin:hover {
  border-color: #0077b5;
  color: #0077b5;
  background: rgba(0, 119, 181, 0.05);
}


/* =============================================================================
   BUTTONS
   ============================================================================= */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  color: var(--color-text-white);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-blue);
  color: white;
}

.btn-primary:hover {
  background: var(--color-blue-hover);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

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

.btn-icon {
  font-size: var(--font-size-sm);
}

/* =============================================================================
   EMPTY STATE
   ============================================================================= */
.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-8);
  max-width: 400px;
  margin: 0 auto;
}

.empty-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-6);
  opacity: 0.6;
  color: var(--color-text-tertiary);
  stroke-width: 1.5;
}

.empty-state h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.empty-state p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

/* =============================================================================
   COMING SOON
   ============================================================================= */
.coming-soon {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  padding: var(--space-8);
}

.coming-soon-icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-6);
  opacity: 0.6;
  color: var(--color-text-tertiary);
  stroke-width: 1.5;
}

.coming-soon h2 {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.coming-soon p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
}

/* =============================================================================
   MODALS
   ============================================================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out-quart);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-bg-glass-strong);
  backdrop-filter: var(--glass-blur-strong);
  -webkit-backdrop-filter: var(--glass-blur-strong);
  border: var(--glass-border);
  border-radius: var(--radius-3xl);
  box-shadow:
    var(--shadow-2xl),
    0 0 60px rgba(0, 0, 0, 0.15);
  max-width: 600px;
  width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  position: relative;
  transform: scale(0.9) translateY(20px);
  transition: all var(--duration-normal) var(--ease-out-quart);
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal::before {
  content: '';
  position: absolute;
  inset: 0;
  background: conic-gradient(
    from 0deg at 50% 50%,
    transparent 0deg,
    var(--color-blue-500) 120deg,
    var(--color-purple-500) 240deg,
    transparent 360deg
  );
  opacity: 0.08;
  z-index: -1;
  animation: modal-shimmer 8s linear infinite;
}

@keyframes modal-shimmer {
  to { transform: rotate(360deg); }
}

.modal-header {
  padding: var(--space-8) var(--space-8) var(--space-6);
  border-bottom: var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

.modal-title {
  font-family: var(--font-family-display);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.modal-close {
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  background: var(--color-bg-glass);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-size: var(--font-size-xl);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast) var(--ease-out-quart);
}

.modal-close:hover {
  background: var(--color-blue-100);
  color: var(--color-blue-700);
  transform: scale(1.1);
}

.modal-body {
  padding: var(--space-6) var(--space-8) var(--space-8);
  position: relative;
  z-index: 1;
  overflow-y: auto;
  max-height: calc(90vh - 200px);
}

.modal-body::-webkit-scrollbar {
  width: 6px;
}

.modal-body::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-full);
}

.modal-body::-webkit-scrollbar-thumb {
  background: var(--color-border-hover);
  border-radius: var(--radius-full);
  transition: background var(--duration-fast) var(--ease-out-quart);
}

.modal-body::-webkit-scrollbar-thumb:hover {
  background: var(--color-blue-500);
}

/* =============================================================================
   FORMS
   ============================================================================= */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

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

.form-input,
.form-textarea {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: var(--color-bg);
  transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.form-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  margin-top: var(--space-4);
}

/* =============================================================================
   TOAST NOTIFICATIONS
   ============================================================================= */
.toast-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.toast {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  transform: translateX(100%);
  transition: transform var(--transition-base);
}

.toast.show {
  transform: translateX(0);
}

.toast.success {
  border-left: 4px solid var(--color-green);
}

.toast.error {
  border-left: 4px solid var(--color-red);
}

.toast.info {
  border-left: 4px solid var(--color-blue);
}

/* =============================================================================
   RESPONSIVE DESIGN
   ============================================================================= */
@media (max-width: 768px) {
  .header-content {
    gap: var(--space-4);
  }

  .tab-nav {
    order: 2;
    flex: 1;
    justify-content: center;
  }

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

  .header-actions {
    order: 3;
  }

  .search-section {
    padding: var(--space-4);
  }

  .content-section {
    padding: var(--space-4);
  }

  .contacts-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-actions {
    flex-direction: column-reverse;
  }

  .modal {
    width: 95%;
    margin: var(--space-4);
  }

  .toast-container {
    left: var(--space-4);
    right: var(--space-4);
  }

  .toast {
    min-width: auto;
  }
}

/* =============================================================================
   SCROLLBAR STYLING
   ============================================================================= */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--color-border-hover);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-tertiary);
}

/* =============================================================================
   FOCUS STYLES
   ============================================================================= */
*:focus {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

.tab-btn:focus,
.btn-primary:focus,
.btn-secondary:focus,
.contact-action-btn:focus {
  outline-offset: 1px;
}

/* =============================================================================
   ANIMATIONS
   ============================================================================= */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}