/* Shared design tokens (calculator / planning / admin / login) */
:root {
    --color-bg-page: #eef1f6;
    --color-surface: #ffffff;
    --color-surface-muted: #f6f8fb;
    --color-border: #e2e8f0;
    --color-border-strong: #cbd5e1;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-soft: #eff6ff;
    --color-success: #059669;
    --color-success-hover: #047857;
    --color-success-soft: #ecfdf5;
    --color-warning: #d97706;
    --color-danger: #dc2626;
    --color-danger-soft: #fef2f2;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.1);
    --space-xs: 6px;
    --space-sm: 10px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Tahoma, Geneva, Verdana, sans-serif;
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;

    /* Legacy aliases for admin.html */
    --primary: var(--color-primary);
    --primary-dark: var(--color-primary-hover);
    --bg-light: var(--color-bg-page);
    --border: var(--color-border);
    --text-main: var(--color-text);
}