/* ========================================
   FlowTools — Design Tokens & Base Styles
   ======================================== */

/* CSS Custom Properties */
:root {
  /* Brand Colors */
  --color-primary: #007E8A;
  --color-primary-dark: #005F68;
  --color-primary-light: #00A5B4;
  --color-primary-50: #E6F5F7;
  --color-primary-100: #B3E0E5;
  --color-primary-200: #80CCd2;

  /* Product Accent Colors */
  --color-tv: #6366F1;
  --color-tv-light: #818CF8;
  --color-tv-dark: #4F46E5;
  --color-tpv: #007E8A;
  --color-tpv-light: #00A5B4;
  --color-tpv-dark: #005F68;
  --color-cafe: #92400E;
  --color-cafe-light: #B45309;
  --color-cafe-dark: #78350F;
  --color-reservaciones: #059669;
  --color-reservaciones-light: #10B981;
  --color-reservaciones-dark: #047857;

  /* Neutrals */
  --color-white: #FFFFFF;
  --color-gray-50: #F8FAFB;
  --color-gray-100: #F1F4F6;
  --color-gray-200: #E2E7EB;
  --color-gray-300: #C9D1D8;
  --color-gray-400: #9BA5AE;
  --color-gray-500: #6B7680;
  --color-gray-600: #4A5460;
  --color-gray-700: #333E48;
  --color-gray-800: #1E2830;
  --color-gray-900: #0F1720;

  /* Semantic */
  --color-success: #16A34A;
  --color-warning: #F59E0B;
  --color-error: #DC2626;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --header-height: 72px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.16);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-gray-800);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: var(--line-height-tight);
  color: var(--color-gray-900);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
  margin-bottom: var(--space-4);
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
}

strong { font-weight: 600; }

input,
textarea,
select,
button {
  font-family: inherit;
  font-size: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* Utility: sr-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: 0;
}