/* Enhanced UI Design System - Modern Color Palette & Visual Appeal */

:root {
  /* Modern Color Palette - Yellow/Amber Primary */
  --primary-50: #fffbeb;
  --primary-100: #fef3c7;
  --primary-200: #fde68a;
  --primary-300: #fcd34d;
  --primary-400: #ffbf00;
  --primary-500: #f59e0b;
  --primary-600: #d97706;
  --primary-700: #b45309;
  --primary-800: #92400e;
  --primary-900: #78350f;
  --primary-950: #451a03;

  /* Secondary Colors - Deep Blue (complements yellow) */
  --secondary-50: #eff6ff;
  --secondary-100: #dbeafe;
  --secondary-200: #bfdbfe;
  --secondary-300: #93c5fd;
  --secondary-400: #60a5fa;
  --secondary-500: #3b82f6;
  --secondary-600: #2563eb;
  --secondary-700: #1d4ed8;
  --secondary-800: #1e40af;
  --secondary-900: #1e3a8a;
  --secondary-950: #172554;

  /* Accent Colors - Purple/Violet */
  --accent-50: #faf5ff;
  --accent-100: #f3e8ff;
  --accent-200: #e9d5ff;
  --accent-300: #d8b4fe;
  --accent-400: #c084fc;
  --accent-500: #a855f7;
  --accent-600: #9333ea;
  --accent-700: #7c3aed;
  --accent-800: #6b21a8;
  --accent-900: #581c87;
  --accent-950: #3b0764;

  /* Success Colors */
  --success-50: #f0fdf4;
  --success-100: #dcfce7;
  --success-200: #bbf7d0;
  --success-300: #86efac;
  --success-400: #4ade80;
  --success-500: #22c55e;
  --success-600: #16a34a;
  --success-700: #15803d;
  --success-800: #166534;
  --success-900: #14532d;
  --success-950: #052e16;

  /* Warning Colors */
  --warning-50: #fffbeb;
  --warning-100: #fef3c7;
  --warning-200: #fde68a;
  --warning-300: #fcd34d;
  --warning-400: #fbbf24;
  --warning-500: #f59e0b;
  --warning-600: #d97706;
  --warning-700: #b45309;
  --warning-800: #92400e;
  --warning-900: #78350f;
  --warning-950: #451a03;

  /* Error Colors */
  --error-50: #fef2f2;
  --error-100: #fee2e2;
  --error-200: #fecaca;
  --error-300: #fca5a5;
  --error-400: #f87171;
  --error-500: #ef4444;
  --error-600: #dc2626;
  --error-700: #b91c1c;
  --error-800: #991b1b;
  --error-900: #7f1d1d;
  --error-950: #450a0a;

  /* Neutral Colors */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --gray-950: #030712;

  /* Text Colors */
  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-600);
  --text-tertiary: var(--gray-500);
  --text-inverse: var(--gray-50);

  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: var(--gray-50);
  --bg-tertiary: var(--gray-100);
  --bg-dark: var(--gray-900);

  /* Border Colors */
  --border-light: var(--gray-200);
  --border-medium: var(--gray-300);
  --border-dark: var(--gray-400);

  /* 8px Grid Spacing */
  --space-1: 0.125rem; /* 2px */
  --space-2: 0.25rem; /* 4px */
  --space-3: 0.375rem; /* 6px */
  --space-4: 0.5rem; /* 8px */
  --space-8: 1rem; /* 16px */
  --space-12: 1.5rem; /* 24px */
  --space-16: 2rem; /* 32px */
  --space-20: 2.5rem; /* 40px */
  --space-24: 3rem; /* 48px */
  --space-32: 4rem; /* 64px */
  --space-48: 6rem; /* 96px */
  --space-64: 8rem; /* 128px */
  --space-80: 10rem; /* 160px */

  /* Typography */
  --font-display: "Outfit", system-ui, -apple-system, sans-serif;
  --font-body: "Albert Sans", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;

  /* Font Sizes */
  --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 */

  /* Enhanced Shadows */
  --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 0 rgba(0, 0, 0, 0.06);
  --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);

  /* Letter Spacing */
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;
}

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

body {
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  font-weight: 400;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--space-8);
  letter-spacing: var(--tracking-tight);
}

h1 {
  font-size: var(--text-5xl);
  font-weight: 800;
  line-height: 1.1;
  background: linear-gradient(135deg, var(--primary-400), var(--primary-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--text-primary);
}

h3 {
  font-size: var(--text-3xl);
  font-weight: 600;
  color: var(--text-primary);
}

h4 {
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--text-primary);
}

h5 {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-primary);
}

h6 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.display-text {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.1;
}

.display-text-large {
  font-size: var(--text-6xl);
  background: linear-gradient(135deg, var(--primary-400), var(--primary-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.display-text-medium {
  font-size: var(--text-5xl);
  background: linear-gradient(135deg, var(--primary-400), var(--primary-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.display-text-small {
  font-size: var(--text-4xl);
  background: linear-gradient(135deg, var(--primary-400), var(--primary-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.body-text-large {
  font-size: var(--text-lg);
}

.body-text-medium {
  font-size: var(--text-base);
}

.body-text-small {
  font-size: var(--text-sm);
}

.mono-text {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--text-primary);
}

/* Links */
a {
  color: var(--primary-600);
  text-decoration: none;
  transition: var(--transition-normal);
}

a:hover {
  color: var(--primary-700);
  text-decoration: underline;
}

/* Enhanced Button Styles with Complete Animation States */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-8) var(--space-16);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  min-height: 48px;
  letter-spacing: -0.025em;
  position: relative;
  overflow: hidden;
  font-family: var(--font-body);
  white-space: nowrap;
  user-select: none;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s ease;
}

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

.btn:active {
  transform: translateY(1px);
  transition: transform 0.1s ease;
}

.btn:focus {
  outline: 2px solid var(--gray-400);
  outline-offset: 2px;
}

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

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

.btn-primary {
  background: var(--primary-300);
  color: var(--gray-950);
  border: 2px solid var(--primary-400);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover {
  background: var(--primary-400);
  color: var(--gray-950);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.btn-primary:active {
  background: var(--primary-700);
  color: var(--gray-950);
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn-primary:focus {
  outline: 2px solid var(--primary-400);
  color: var(--gray-950);
  outline-offset: 2px;
}

.btn-small {
  padding: var(--space-2) var(--space-4) !important;
  font-size: var(--text-sm) !important;
  min-height: 32px;
}

.btn-secondary {
  background: transparent;
  color: var(--gray-700);
  border: 2px solid var(--gray-700);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.btn-secondary:hover {
  background: var(--primary-300);
  color: var(--gray-950);
  border: 2px solid var(--primary-400);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.btn-secondary:active {
  background: var(--gray-800);
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn-secondary:focus {
  outline: 2px solid var(--gray-400);
  outline-offset: 2px;
}

.btn-small {
  padding: var(--space-2) var(--space-4) !important;
  font-size: var(--text-xs);
  min-height: 32px;
}

/* Layout Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.grid {
  display: grid;
  gap: var(--space-8);
}

.grid-cols-1 {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

.grid-cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-cols-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

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

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

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

/* Background Utilities */
.bg-white {
  background-color: var(--bg-primary);
}

.bg-gray-50 {
  background-color: var(--bg-secondary);
}

.bg-gray-100 {
  background-color: var(--bg-tertiary);
}

/* Spacing Utilities */
.p-4 {
  padding: var(--space-4);
}

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

.p-16 {
  padding: var(--space-16);
}

.p-24 {
  padding: var(--space-24);
}

.m-4 {
  margin: var(--space-4);
}

.m-8 {
  margin: var(--space-8);
}

.m-16 {
  margin: var(--space-16);
}

.m-24 {
  margin: var(--space-24);
}

/* Border Utilities */
.border {
  border: 1px solid var(--border-light);
}

.border-2 {
  border: 2px solid var(--border-light);
}

.rounded {
  border-radius: var(--radius-md);
}

.rounded-lg {
  border-radius: var(--radius-lg);
}

/* Shadow Utilities */
.shadow-sm {
  box-shadow: var(--shadow-sm);
}

.shadow-md {
  box-shadow: var(--shadow-md);
}

.shadow-lg {
  box-shadow: var(--shadow-lg);
}

/* Responsive Design */
@media (min-width: 768px) {
  .md\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .md\:grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .md\:grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lg\:grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .lg\:grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}