/*
 * Imperial Ink Design System — Design Tokens & Common Styles
 * Shared across training, lessons, and analysis pages.
 */


:root {
  color-scheme: light;

  --primary: #c8913a;
  --primary-dark: #a67025;
  --primary-soft: #f5eee4;

  --bg: #f6f1ea;
  --ink: #2c3e50;
  --muted: #6b6761;
  --panel: #ffffff;
  --panel-translucent: rgba(255, 255, 255, 0.85);
  --line: #e5dccf;

  --shadow-sm: 0 2px 8px rgba(32, 24, 16, 0.06);
  --shadow-md: 0 8px 24px rgba(32, 24, 16, 0.08);
  --shadow-lg: 0 18px 40px rgba(32, 24, 16, 0.1);

  --danger: #c0392b;
  --danger-soft: #f7d9d3;
  --success: #2b6b3a;
  --success-soft: #e7f4ea;

  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 22px;

  --space-xs: 8px;
  --space-sm: 14px;
  --space-md: 24px;
  --space-lg: 32px;

  --accent: var(--primary);
  --accent-dark: var(--primary-dark);
  --accent-soft: var(--primary-soft);
  --shadow: var(--shadow-lg);
}

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

html {
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  color: var(--ink);
  background: radial-gradient(
    circle at top left,
    #fff8ef 0%,
    var(--bg) 55%,
    #efe3d4 100%
  );
}

h1,
h2,
h3 {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-weight: 700;
}

.eyebrow {
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--primary-dark);
  margin: 0 0 8px;
}

.ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 999px;
  padding: 8px 14px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.ghost:hover,
.ghost:focus-visible {
  border-color: rgba(166, 112, 37, 0.45);
  box-shadow: 0 0 0 3px rgba(200, 145, 58, 0.16);
  outline: none;
}

/* Accessibility: visually hidden but available to screen readers and crawlers */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}