/* ============================================
   CSS Custom Properties (Variables)
   ============================================ */

:root {
  /* Primary Brand Colors */
  --color-primary: #2563EB;
  --color-primary-light: #3b82f6;
  --color-primary-dark: #1d4ed8;

  --color-accent: #9A1EE3;
  --color-accent-light: #b12dfa;
  --color-accent-dark: #8115c4;

  --color-secondary: #6366F1;
  --color-secondary-light: #818cf8;
  --color-secondary-dark: #4f46e5;

  /* Gradient Colors */
  --gradient-blue-purple: linear-gradient(135deg, #2563EB 0%, #764EFC 100%);
  --gradient-purple-cyan: linear-gradient(135deg, #9A1EE3 0%, #3BD9F2 100%);
  --gradient-blue-indigo: linear-gradient(to bottom right, #2563EB, #6366F1);

  /* Neutral Colors - Gray Scale */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Blue Gray Scale */
  --color-slate-50: #F8FAFC;
  --color-slate-100: #F1F5F9;
  --color-slate-200: #E2E8F0;
  --color-slate-300: #CBD5E1;
  --color-slate-400: #94A3B8;
  --color-slate-500: #64748B;
  --color-slate-600: #475569;
  --color-slate-700: #334155;
  --color-slate-800: #1E293B;
  --color-slate-900: #0F172A;

  /* Service Accent Colors */
  --color-lime-400: #c5e301;
  --color-lime-600: #65a30d;
  --color-purple-500: #b12dfa;
  --color-pink-600: #db2777;
  --color-yellow-700: #b45309;
  --color-yellow-900: #78350f;
  --color-green-600: #049ca4;
  --color-green-800: #065f46;

  /* Status Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* Base Colors */
  --color-white: #ffffff;
  --color-black: #000000;

  /* Typography */
  --font-family-base: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-family-heading: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;

  /* Font Sizes - Modern Scale */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  --text-5xl: 3rem;        /* 48px */
  --text-6xl: 3.75rem;     /* 60px */
  --text-7xl: 4.5rem;      /* 72px */
  --text-8xl: 6rem;        /* 96px */

  /* Font Weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  --font-black: 900;

  /* Spacing Scale */
  --spacing-xs: 0.5rem;    /* 8px */
  --spacing-sm: 1rem;      /* 16px */
  --spacing-md: 1.5rem;    /* 24px */
  --spacing-lg: 2rem;      /* 32px */
  --spacing-xl: 3rem;      /* 48px */
  --spacing-2xl: 4rem;     /* 64px */
  --spacing-3xl: 6rem;     /* 96px */
  --spacing-4xl: 8rem;     /* 128px */

  /* 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;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Transitions */
  --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);

  /* Z-Index Scale */
  --z-base: 0;
  --z-dropdown: 10;
  --z-sticky: 20;
  --z-fixed: 30;
  --z-modal: 40;
  --z-popover: 50;
  --z-tooltip: 60;
}

/* ============================================
   Animation Keyframes
   ============================================ */

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

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

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

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

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ============================================
   Utility Classes for Animations
   ============================================ */

.animate-on-scroll {
  opacity: 0;
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.is-visible {
  opacity: 1;
}

.fade-in-up {
  transform: translateY(30px);
}

.fade-in-up.is-visible {
  transform: translateY(0);
}

.fade-in-down {
  transform: translateY(-30px);
}

.fade-in-down.is-visible {
  transform: translateY(0);
}

.fade-in-left {
  transform: translateX(-30px);
}

.fade-in-left.is-visible {
  transform: translateX(0);
}

.fade-in-right {
  transform: translateX(30px);
}

.fade-in-right.is-visible {
  transform: translateX(0);
}

.scale-in {
  transform: scale(0.95);
}

.scale-in.is-visible {
  transform: scale(1);
}

/* Stagger animation delays */
.stagger-1 { transition-delay: 0ms; }
.stagger-2 { transition-delay: 100ms; }
.stagger-3 { transition-delay: 200ms; }
.stagger-4 { transition-delay: 300ms; }
.stagger-5 { transition-delay: 400ms; }
.stagger-6 { transition-delay: 500ms; }

/* ============================================
   Enhanced Form Focus States
   ============================================ */

/* Glowing focus effect for form inputs */
input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2),
              0 0 20px rgba(37, 99, 235, 0.15) !important;
  transform: translateY(-1px);
}

/* Focus-within for form containers */
.form-field:focus-within {
  transform: scale(1.01);
}

/* Enhanced button states */
button:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

button:active {
  transform: scale(0.98);
}

/* ============================================
   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;
  }

  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }
}