/* Color scheme and design tokens */
/* Based on the arc visualization notebook */

:root {
    /* Background colors */
    --bg-dark: #1a1a2e;
    --bg-darker: #12121f;
    --bg-card: #252542;

    /* Arc colors */
    --color-ot: #4a90a4;         /* Blue-ish for OT references */
    --color-nt: #d4a574;         /* Gold/tan for NT references */
    --color-deuterocanonical: #8e44ad;  /* Purple for deuterocanonical books */

    /* Text colors */
    --color-text: #f5f5f5;
    --color-text-muted: #a0a0a0;
    --color-text-dim: #666666;

    /* Accent colors */
    --color-accent: #e8c547;
    --color-highlight: #ffffff;

    /* Arc rendering properties */
    /* Base opacity is calculated dynamically in JS based on reference count */
    /* Formula: max(0.02, min(0.2, 3000 / refCount)) */
    --arc-opacity-base: 0.1;  /* Fallback, overridden by JS */
    --arc-opacity-active: 0.6;
    --arc-opacity-highlight: 0.9;
    --arc-opacity-dim: 0.02;
    --arc-stroke-width: 0.3;
    --arc-stroke-width-highlight: 1.2;

    /* Layout dimensions */
    --step-height: 75vh;
    --step-height-mobile: 50vh;
    --graphic-height: 100vh;
    --text-width: 45%;
    --text-max-width: 480px;
    --text-padding: 2rem;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-size-base: 16px;
    --font-size-small: 14px;
    --font-size-large: 20px;
    --font-size-h1: 2.5rem;
    --font-size-h2: 1.75rem;
    --font-size-h3: 1.25rem;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
}