/**
 * GEESWAY Brand Design System - Single Source of Truth
 * All apps and pages must use these variables
 */

:root {
  /* === GEESWAY Brand Colors === */
  --brand-50: #eff6ff;
  --brand-100: #dbeafe;
  --brand-500: #3b82f6;
  --brand-600: #2563EB; /* Primary */
  --brand-700: #1d4ed8;
  --brand-800: #1e40af;
  --brand-900: #1e3a8a;

  /* === Accent Colors === */
  --accent-black: #0f172a;
  --accent-dark: #1e293b;
  --accent-charcoal: #334155;

  /* === Neutral Colors === */
  --white: #FFFFFF;
  --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;

  /* === Semantic Aliases === */
  --primary: var(--brand-600);
  --primary-light: var(--brand-500);
  --primary-dark: var(--brand-700);
  --primary-darker: var(--brand-800);

  /* === Typography === */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;

  /* === Spacing & Layout === */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* === Shadows === */
  --shadow-sm: 0 1px 2px 0 rgba(37, 99, 235, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(37, 99, 235, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(37, 99, 235, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(37, 99, 235, 0.15);

  /* === 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);
}

/* === Global Styles === */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  color: var(--accent-black);
  background: var(--gray-50);
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === Utility Classes === */
.brand-gradient {
  background: linear-gradient(135deg, var(--brand-600), var(--brand-700));
}

.brand-gradient-soft {
  background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
}

.brand-gradient-dark {
  background: linear-gradient(135deg, var(--brand-700), var(--brand-900));
}

.brand-bg-primary {
  background-color: var(--brand-600);
}

.brand-text-primary {
  color: var(--brand-600);
}

.brand-border-primary {
  border-color: var(--brand-600);
}

/* === Component Patterns === */
.btn-brand-primary {
  background: var(--brand-gradient);
  color: var(--white);
  border: none;
  border-radius: var(--radius-md);
  padding: 14px 24px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.btn-brand-primary:hover {
  background: linear-gradient(135deg, var(--brand-700), var(--brand-800));
  box-shadow: var(--shadow-lg);
}

.btn-brand-primary:active {
  transform: scale(0.98);
}

.card-brand {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.input-brand {
  background: var(--white);
  border: 2px solid var(--brand-600);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 16px;
  font-family: inherit;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.input-brand:focus {
  outline: none;
  border-color: var(--brand-700);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}