:root {
    /* Colors - Muted olive + grey theme (default) */
    --color-primary: #4A5D23;
    --color-primary-dark: #344016;
    --color-primary-light: #7C8C3A;
    --color-secondary: #2C3A24;
    --color-accent: #9AA65C;

    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-light-gray: #F5F7FA;
    --color-gray: #E0E4E8;
    --color-medium-gray: #9CA3AF;
    --color-dark-gray: #4B5563;
    --color-black: #1F2937;

    /* Text Colors */
    --text-primary: #1F2937;
    --text-secondary: #4B5563;
    --text-light: #6B7280;
    --text-white: #FFFFFF;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    --spacing-2xl: 4rem;

    /* Typography: Inter for Latin; explicit CJK stack so zh-Hans/zh-Hant do not mix random fallbacks. */
    --font-family: 'Inter', 'PingFang SC', 'PingFang TC', 'Hiragino Sans GB', 'Microsoft YaHei UI', 'Microsoft YaHei',
        'Microsoft JhengHei', 'Heiti SC', 'Heiti TC', 'Noto Sans CJK SC', 'Noto Sans CJK TC', -apple-system,
        BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;

    /* Font Weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;

    /* Layout */
    --container-max-width: 1440px;
    --navbar-height: 80px;

    /* Hero section background */
    --hero-bg: #E5E2B8;

    /* Products section: yellowish olive background (white ripples on canvas) */
    --products-bg: #E5E2B8;
    --products-bg-subtle: rgba(255, 255, 255, 0.7);
    --products-border: rgba(74, 93, 35, 0.25);
}