/* BW Framework - Main Styles */

/* Design Tokens */
:root {
  /* Colors - Dark Accessible Palette */
  --bw-color-background: #111111;
  --bw-color-surface: #1a1a1a;
  --bw-color-text: #f5f5f5;
  --bw-color-text-secondary: #cccccc;
  --bw-color-accent: #c7a16b;
  --bw-color-accent-hover: #d4b57a;
  --bw-color-focus: #c7a16b;
  --bw-color-border: #333333;
  --bw-color-error: #ff6b6b;
  --bw-color-success: #51cf66;

  /* Typography */
  --bw-font-family-base: 'system-ui', -apple-system, sans-serif;
  --bw-font-size-base: 18px;
  --bw-line-height-base: 1.7;
  --bw-font-weight-normal: 400;
  --bw-font-weight-bold: 700;

  /* Spacing Scale */
  --bw-space-xs: 0.25rem; /* 4px */
  --bw-space-sm: 0.5rem;  /* 8px */
  --bw-space-md: 1rem;    /* 16px */
  --bw-space-lg: 1.5rem;  /* 24px */
  --bw-space-xl: 2rem;    /* 32px */
  --bw-space-2xl: 3rem;   /* 48px */
  --bw-space-3xl: 4rem;   /* 64px */

  /* Layout */
  --bw-max-width-content: 720px;
  --bw-max-width-wide: 1280px;
}

html {
    scroll-behavior: smooth;
    font-size: var(--bw-font-size-base);
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

body {
    background: var(--bw-color-background);
    color: var(--bw-color-text);
    font-family: var(--bw-font-family-base);
    line-height: var(--bw-line-height-base);
    margin: 0;
    padding: 0;
}

/* Typography Baseline */
h1, h2, h3, h4, h5, h6 {
    color: var(--bw-color-text);
    font-weight: var(--bw-font-weight-bold);
    line-height: 1.2;
    margin: var(--bw-space-lg) 0 var(--bw-space-md) 0;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin: 0 0 var(--bw-space-md) 0;
}

/* Responsive Typography */
@media (max-width: 768px) {
    :root {
        --bw-font-size-base: 16px;
    }
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
}

/* Spacing System */
.container {
    max-width: var(--bw-max-width-content);
    margin: 0 auto;
    padding: 0 var(--bw-space-md);
}

.wide-container {
    max-width: var(--bw-max-width-wide);
    margin: 0 auto;
    padding: 0 var(--bw-space-md);
}

/* Focus States */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 3px solid var(--bw-color-focus);
    outline-offset: 3px;
}

/* Accessible Links */
a {
    color: var(--bw-color-accent);
    text-decoration: underline;
    transition: color 0.2s ease;
}

a:hover,
a:focus {
    color: var(--bw-color-accent-hover);
}

a:focus {
    outline: 3px solid var(--bw-color-focus);
    outline-offset: 3px;
}

/* Accessible Buttons */
button,
.button,
input[type="submit"],
input[type="button"],
input[type="reset"] {
    background: var(--bw-color-accent);
    border: 2px solid var(--bw-color-accent);
    color: var(--bw-color-background);
    cursor: pointer;
    display: inline-block;
    font-family: inherit;
    font-size: inherit;
    font-weight: var(--bw-font-weight-normal);
    line-height: 1.2;
    padding: var(--bw-space-sm) var(--bw-space-md);
    text-decoration: none;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

button:hover,
.button:hover,
input[type="submit"]:hover,
input[type="button"]:hover,
input[type="reset"]:hover {
    background: var(--bw-color-accent-hover);
    border-color: var(--bw-color-accent-hover);
}

button:focus,
.button:focus,
input[type="submit"]:focus,
input[type="button"]:focus,
input[type="reset"]:focus {
    outline: 3px solid var(--bw-color-focus);
    outline-offset: 3px;
}

/* Accessibility Helpers */
.screen-reader-text {
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}

.screen-reader-text:focus {
    background-color: var(--bw-color-background);
    border-radius: 3px;
    box-shadow: 0 0 2px 2px rgba(0, 0, 0, 0.6);
    clip: auto !important;
    clip-path: none;
    color: var(--bw-color-text);
    display: block;
    font-size: 14px;
    font-weight: bold;
    height: auto;
    left: 5px;
    line-height: normal;
    padding: 15px 23px 14px;
    text-decoration: none;
    top: 5px;
    width: auto;
    z-index: 100000;
}

/* Skip Link */
.skip-link {
    position: absolute;
    left: -9999px;
    z-index: 999999;
    text-decoration: none;
    background: var(--bw-color-accent);
    color: var(--bw-color-background);
    padding: var(--bw-space-sm) var(--bw-space-md);
    border-radius: 3px;
}

.skip-link:focus {
    left: 6px;
    top: 7px;
}