/**
 * Design Tokens - Soccer Board
 *
 * RULES:
 * - Only :root selector
 * - No element or class styles
 * - All values are CSS custom properties
 */

:root {
    /* ================================ */
    /* TEAM COLORS                      */
    /* ================================ */
    --color-home: #1976d2;
    --color-home-hover: #1565c0;
    --color-home-light: rgba(25, 118, 210, 0.1);

    --color-away: #e53935;
    --color-away-hover: #c62828;
    --color-away-light: rgba(229, 57, 53, 0.1);

    --color-gk: #ff9800;
    --color-gk-hover: #f57c00;

    --color-ball: #ffeb3b;
    --color-ball-border: #000000;

    /* ================================ */
    /* FIELD COLORS                     */
    /* ================================ */
    --color-field: #2e7d32;
    --color-field-dark: #1b5e20;
    --color-field-line: #ffffff;

    /* ================================ */
    /* UI COLORS                        */
    /* ================================ */
    --color-bg-primary: #0a0a0a;
    --color-bg-header: #1a1a1a;
    --color-bg-field: #000000;

    --color-border: #2a2a2a;
    --color-border-focus: var(--color-home);

    --color-text: #f5f5f5;
    --color-text-muted: #888888;
    --color-text-dim: #666666;
    --color-text-placeholder: #555555;
    --color-text-inverse: #000000;

    /* ================================ */
    /* TRANSPARENCY LAYERS              */
    /* ================================ */
    --alpha-subtle: rgba(255, 255, 255, 0.03);
    --alpha-light: rgba(255, 255, 255, 0.06);
    --alpha-medium: rgba(255, 255, 255, 0.1);
    --alpha-strong: rgba(255, 255, 255, 0.15);
    --alpha-hover: rgba(255, 255, 255, 0.05);

    /* ================================ */
    /* SPACING                          */
    /* ================================ */
    --space-1: 0.25rem;
    /* 4px */
    --space-2: 0.5rem;
    /* 8px */
    --space-3: 0.75rem;
    /* 12px */
    --space-4: 1rem;
    /* 16px */
    --space-5: 1.25rem;
    /* 20px */
    --space-6: 1.5rem;
    /* 24px */
    --space-8: 2rem;
    /* 32px */

    /* ================================ */
    /* TYPOGRAPHY                       */
    /* ================================ */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    --text-xs: 0.5625rem;
    /* 9px */
    --text-sm: 0.625rem;
    /* 10px */
    --text-base: 0.75rem;
    /* 12px */
    --text-lg: 0.875rem;
    /* 14px */
    --text-xl: 1rem;
    /* 16px */
    --text-2xl: 1.125rem;
    /* 18px */

    /* ================================ */
    /* LAYOUT                           */
    /* ================================ */
    --sidebar-width: 160px;
    --sidebar-collapsed-width: 40px;
    --header-min-height: 44px;
    --field-max-width: 1400px;
    --field-max-height: 900px;

    /* ================================ */
    /* TOKEN SIZING                     */
    /* ================================ */
    --token-size: 44px;
    --token-size-small: 36px;
    --token-size-touch: 52px;
    --token-font-size: 0.6875rem;
    --token-font-size-small: 0.5625rem;

    /* ================================ */
    /* FIELD POSITION CONSTANTS         */
    /* ================================ */
    --position-min: 0.02;
    --position-max: 0.98;
    --formation-side: 0.12;
    --formation-margin: 0.12;

    /* ================================ */
    /* BORDERS                          */
    /* ================================ */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-full: 9999px;
    --border-width: 1px;
    --border-width-thick: 2px;
    --border-width-token: 3px;

    /* ================================ */
    /* SHADOWS                          */
    /* ================================ */
    --shadow-token: 0 2px 4px rgba(0, 0, 0, 0.3), 0 4px 8px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.15);
    --shadow-token-drag: 0 0 0 4px rgba(255, 255, 255, 0.9), 0 12px 24px rgba(0, 0, 0, 0.5), 0 4px 8px rgba(0, 0, 0, 0.3);
    --shadow-token-focus: 0 0 0 4px rgba(255, 255, 255, 0.9), 0 0 12px rgba(255, 255, 255, 0.4);

    /* ================================ */
    /* TRANSITIONS                      */
    /* ================================ */
    --transition-fast: 100ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* ================================ */
    /* Z-INDEX LAYERS                   */
    /* ================================ */
    --z-field: 0;
    --z-token: 10;
    --z-token-dragging: 100;
    --z-sidebar: 50;
    --z-header: 100;
}