/* ===== HEADLINES THEME SYSTEM ===== */
/* Common theme variables and utilities for Headlines game UI components */

:root {
    /* ===== COLOR PALETTE ===== */
    /* Primary colors */
    --color-primary: #3b82f6;
    --color-primary-dark: #2563eb;
    --color-primary-darker: #1d4ed8;

    /* Surface colors */
    --color-surface-light: #ffffff;
    --color-surface-dark: #1e293b; /* Navy blue for headers */
    --color-surface-darker: #0f172a;

    /* Text colors */
    --color-text-light: #f8fafc;
    --color-text-primary: #1f2937;
    --color-text-secondary: #374151;
    --color-text-muted: #6b7280;

    /* Border colors */
    --color-border-light: #e5e7eb;
    --color-border-primary: #d1d5db;
    --color-border-dark: #9ca3af;

    /* Background gradients */
    --color-bg-gradient-start: #f8fafc;
    --color-bg-gradient-end: #e2e8f0;

    /* Popup colors */
    --color-popup-bg-start: #f8fafc;
    --color-popup-bg-end: #e2e8f0;
    --color-popup-header-bg: #d1d5db; /* Slightly darker than main bg */
    --color-popup-border: #6b7280; /* Darker border for better visibility */
    --color-popup-highlight: #2563eb; /* Blue highlight color for bold text */

    /* ===== SPACING SYSTEM ===== */
    --spacing-none: 0;
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 20px;
    --spacing-xl: 24px;
    --spacing-2xl: 32px;
    --spacing-3xl: 40px;

    /* ===== BORDER RADIUS ===== */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;

    /* ===== SHADOWS ===== */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.25);

    /* ===== TYPOGRAPHY ===== */
    --font-family: 'Comfortaa', sans-serif;
    --font-size-xxxs: 10px;
    --font-size-xxs: 11px;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 28px;
    --font-size-4xl: 32px;

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

    /* ===== Z-INDEX SCALE ===== */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-tutorial: 1111;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}