/* assets/css/tokens.css */

:root {
  /* Color Palette - Soft, Futuristic Medical Grade */
  --color-primary-light: #e6f3ff;
  --color-primary: #0073e6;
  --color-primary-dark: #005bb5;
  --color-secondary: #0b99ff;
  --color-accent: #00e6e6; /* Soft cyan futuristic accent */
  
  --color-background: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-glass: rgba(255, 255, 255, 0.7);
  --color-surface-glass-dark: rgba(255, 255, 255, 0.4);
  
  --color-text-main: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --color-border-glass: rgba(255, 255, 255, 0.5);

  /* Typography */
  --font-family-base: 'Inter', system-ui, -apple-system, sans-serif;
  --font-family-display: 'Poppins', system-ui, sans-serif;

  /* Font Sizes (Base 1rem = 10px) */
  --font-size-xs: 1.2rem;
  --font-size-sm: 1.4rem;
  --font-size-base: 1.6rem;
  --font-size-lg: 1.8rem;
  --font-size-xl: 2.2rem;
  --font-size-2xl: 3.2rem;
  --font-size-3xl: 4.8rem;
  --font-size-4xl: 6.4rem;

  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-base: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing */
  --space-0: 0;
  --space-1: 0.4rem;
  --space-2: 0.8rem;
  --space-3: 1.2rem;
  --space-4: 1.6rem;
  --space-5: 2.4rem;
  --space-6: 3.2rem;
  --space-7: 3.6rem;
  --space-8: 4.8rem;
  --space-10: 6.4rem;
  --space-12: 8rem;
  --space-16: 12rem;

  /* Radii */
  --radius-sm: 0.4rem;
  --radius-md: 0.8rem;
  --radius-lg: 1.6rem;
  --radius-xl: 3.2rem;
  --radius-full: 999.9rem;

  /* Shadows (Soft, Medical) */
  --shadow-sm: 0 0.2rem 0.6rem rgba(11, 153, 255, 0.05);
  --shadow-md: 0 0.4rem 1.6rem rgba(11, 153, 255, 0.1);
  --shadow-lg: 0 1.2rem 3.2rem rgba(11, 153, 255, 0.15);
  --shadow-glass: 0 0.8rem 3.2rem rgba(30, 41, 59, 0.06);

  /* Z-Index */
  --z-nav: 100;
  --z-overlay: 200;
  --z-modal: 300;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  color: var(--color-text-main);
  background-color: var(--color-background);
  line-height: var(--line-height-base);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-display);
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-text-main);
  margin-bottom: var(--space-4);
}

h1 { font-size: clamp(3.6rem, 6vw, var(--font-size-4xl)); letter-spacing: -0.1rem; }
h2 { font-size: clamp(2.8rem, 5vw, var(--font-size-3xl)); letter-spacing: -0.05rem; }
h3 { font-size: clamp(2.4rem, 4vw, var(--font-size-2xl)); }
h4 { font-size: clamp(2rem, 3vw, var(--font-size-xl)); }
h5 { font-size: var(--font-size-lg); }

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

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

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