/* =========================================================================
   Western Chase FPS Demo — Shared Design System
   FROZEN after Phase 1. Do not edit from module-owning subagents.
   ========================================================================= */

:root {
  --bg: #f5f6f8;
  --bg-alt: #ffffff;
  --panel-dark: #14161c;
  --panel-dark-alt: #1e2129;
  --border: #dfe2e7;
  --border-dark: #33353c;

  --text: #1a1c20;
  --text-muted: #565b64;
  --text-on-dark: #f4f5f7;
  --text-on-dark-muted: #a7acb6;

  --accent: #3a5cdb;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.375rem;
  --fs-xl: 1.75rem;
  --fs-2xl: 2.25rem;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.5rem;
  --sp-6: 2rem;
  --sp-7: 3rem;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(20, 22, 26, 0.08);
  --shadow-md: 0 4px 16px rgba(20, 22, 26, 0.10);
  --shadow-lg: 0 12px 32px rgba(20, 22, 26, 0.16);

  --max-width: 1200px;
  --touch-target: 44px;

  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 var(--sp-2); font-weight: 700; }
p { margin: 0 0 var(--sp-3); }
button { font-family: inherit; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--sp-5);
}
.section { padding: var(--sp-6) 0; }
.row { display: flex; flex-wrap: wrap; gap: var(--sp-3); align-items: center; }
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-4);
}
@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .grid-4 { grid-template-columns: 1fr; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  min-height: var(--touch-target);
  min-width: var(--touch-target);
  padding: 0 var(--sp-4);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-weight: 700;
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  user-select: none;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--accent); color: #fff; box-shadow: var(--shadow-sm); }
.btn--ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn--ghost:hover { background: var(--bg); }
.btn--on-dark { background: rgba(255,255,255,0.10); color: var(--text-on-dark); border-color: rgba(255,255,255,0.24); }
.btn--on-dark:hover { background: rgba(255,255,255,0.18); }
.btn--on-dark[aria-pressed="true"] { background: #fff; color: var(--panel-dark); border-color: #fff; }
.btn--sm { min-height: 36px; padding: 0 var(--sp-3); font-size: var(--fs-xs); }
select.select--on-dark {
  min-height: var(--touch-target);
  padding: 0 var(--sp-3);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.24);
  background: rgba(255,255,255,0.10);
  color: var(--text-on-dark);
  font-size: var(--fs-sm);
  font-weight: 700;
}

/* ---------- Cards (device selector) ---------- */
.card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--sp-4);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.card[aria-pressed="true"] {
  border-color: var(--accent);
  background: #eef1ff;
  box-shadow: 0 0 0 2px var(--accent) inset;
}
.card__title { font-size: var(--fs-md); margin-bottom: var(--sp-1); }
.card__desc { color: var(--text-muted); font-size: var(--fs-sm); margin-bottom: 0; }

/* ---------- Test / demo panel ---------- */
.test-panel {
  background: var(--panel-dark);
  color: var(--text-on-dark);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  box-shadow: var(--shadow-lg);
}
.test-panel__header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}
.test-panel__title { font-size: var(--fs-lg); margin: 0; }

/* One FPS lane */
.wc-lane {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  margin-bottom: var(--sp-3);
  height: 130px;
  background: var(--panel-dark-alt);
}
.wc-lane:last-child { margin-bottom: 0; }
.wc-badge {
  position: absolute;
  top: var(--sp-3);
  left: var(--sp-3);
  z-index: 5;
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: var(--fs-sm);
  color: #fff;
  line-height: 1.2;
}

/* ---------- Disclaimer banner (shared, matches ScreenTest Pro pattern) ---------- */
.disclaimer {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
  background: #fff8e6;
  border: 1px solid #f0dca0;
  color: #6b5100;
  border-radius: var(--radius-md);
  padding: var(--sp-4);
  font-size: var(--fs-sm);
  margin-bottom: var(--sp-4);
}
.disclaimer__icon { flex: none; font-size: 1.1rem; line-height: 1.4; }

.text-muted { color: var(--text-muted); }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0; padding: 0; margin: -1px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}