/* Base CSS - Core styles and CSS variables */

:root {
    /* Color variables */
    --color-primary: #3273dc;
    --color-secondary: #209cee;
    --color-success: #48c774;
    --color-warning: #ffdd57;
    --color-danger: #ff3860;
    --color-dark: #363636;
    --color-light: #f5f5f5;
    --color-surface: #ffffff;
    --color-text: #4a4a4a;

    /* Spacing variables */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;

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

    /* Font sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-xxl: 2rem;
}

/* Base reset and defaults */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-light);
}

/* Links */
a {
    color: var(--color-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--color-secondary);
}

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

/* Focus styles for accessibility */
*:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Skip to content link for accessibility */
.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 999;
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
}

.skip-link:focus {
    left: 0;
}

/* Utility classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-auto { margin-top: auto; }
.mb-auto { margin-bottom: auto; }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }

/* Minimal footer adjustment */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.footer {
    padding: 2rem 1.5rem 2rem;
}