:root {
    --colour-brand: #163A5F;
    --colour-brand-dark: #0B2B4A;
    --colour-accent: #8FB98D;
    --colour-text: #24323F;
    --colour-muted: #667482;
    --colour-border: #D9E0E6;
    --colour-surface: #FFFFFF;
    --colour-background: #F5F7F9;
    --colour-danger: #A93636;
    --colour-warning: #8A6116;
    --colour-success: #2E6A44;

    --font-family: Arial, Helvetica, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;

    --content-width: 1280px;
    --content-padding: 24px;

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;

    --radius-small: 4px;
    --radius-medium: 8px;
    --radius-large: 14px;

    --shadow-card: 0 8px 24px rgba(17, 39, 62, 0.07);
    --field-height: 44px;
}

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

html {
    min-height: 100%;
    background: var(--colour-background);
}

body {
    min-height: 100vh;
    margin: 0;
    background: var(--colour-background);
    color: var(--colour-text);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
}

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

a {
    color: var(--colour-brand);
}

h1,
h2,
h3,
h4 {
    margin-top: 0;
    color: var(--colour-brand-dark);
    line-height: 1.2;
}

h1 { font-size: clamp(2rem, 3vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 2vw, 2rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1rem; }

p {
    margin-top: 0;
}

button,
input,
select,
textarea {
    font: inherit;
}