:root {
    --color-primary: #f39200;
    --color-primary-dark: #d36800;
    --color-success: #107c10;
    --color-warning: #d83b01;
    --color-danger: #a80000;
    --color-text: #1a1a1a;
    --color-text-muted: #555;
    --color-text-hint: #888;
    --color-bg: #ffffff;
    --color-bg-alt: #f7f7f7;
    --color-border: #e0e0e0;
    --header-height: 52px;
    --border-radius: 6px;
    --font-mono: "Cascadia Code", "Fira Code", "JetBrains Mono", Consolas, monospace;
    --max-width: 1200px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: inherit;
}

h1, h2, h3, h4 {
    line-height: 1.3;
}

code {
    font-family: var(--font-mono);
}