/* Base layer: reset, layout, controls. Phone-first, and it *opens up* — the same
 * markup is a single column on a phone and a proper multi-pane layout on a laptop.
 * Two breakpoints only, named for what changes rather than for a device:
 *   >=680px  "roomy"  — side-by-side pairs, wider cards
 *   >=1024px "desk"   — two-pane console, grid dashboards, persistent nav
 */
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    radial-gradient(900px 480px at 110% -8%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 62%),
    radial-gradient(700px 380px at -8% 108%, color-mix(in srgb, var(--state-accent) 10%, transparent), transparent 58%);
  background-attachment: fixed;
  color: var(--ink);
  font: var(--type);
  -webkit-font-smoothing: antialiased;
  padding: env(safe-area-inset-top) 0 calc(env(safe-area-inset-bottom) + var(--space-4));
}
/* Exam mode drops the wash — the simulator stays stark on purpose. */
html.exam body { background-image: none; }

.wrap { max-width: var(--reading); margin: 0 auto; padding: 0 var(--space-4); }
.wrap-wide { max-width: 1100px; }

header.bar {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  padding: var(--space-4) 0 var(--space-2);
}
.mark { font-weight: 700; letter-spacing: -0.02em; font-size: 14px; color: var(--accent); }

h1 { font-size: var(--step-3); line-height: 1.2; letter-spacing: -0.02em; margin: var(--space-3) 0 var(--space-2); }
h2 { font-size: var(--step-2); letter-spacing: -0.01em; margin: var(--space-5) 0 var(--space-3); }
p.lede { color: var(--muted); margin: 0 0 var(--space-4); }

label { display: block; font-size: 14px; color: var(--muted); margin: var(--space-3) 0 var(--space-1); }
input, select, button, textarea { font: inherit; }
input, select, textarea {
  width: 100%; padding: 14px var(--space-3); border: 1px solid var(--line);
  border-radius: var(--radius); background: var(--card); color: var(--ink);
}

button {
  width: 100%; min-height: var(--tap); padding: 15px 18px; margin-top: var(--space-3);
  border-radius: var(--radius); border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-ink); font-weight: 600; cursor: pointer;
}
button.ghost { background: transparent; color: var(--accent); }
button.inline { width: auto; margin-top: 0; }
button:disabled { opacity: .5; cursor: default; }

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}
a { color: var(--accent); }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 18px; box-shadow: var(--shadow);
}
section[id^="v-"]:not(.hide) { animation: rise var(--motion) both; }
@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
/* Screen-reader focus on view headings must not paint a form-field ring. */
h1[tabindex]:focus, h1[tabindex]:focus-visible,
h2[tabindex]:focus, h2[tabindex]:focus-visible { outline: none; }
.chip {
  display: inline-block; font-size: 12px; letter-spacing: .04em; text-transform: uppercase;
  color: var(--muted); border: 1px solid var(--line); border-radius: 99px; padding: 3px 10px;
}
.chip.state { color: var(--state-accent); border-color: var(--state-accent); }
.count { font-size: 13px; color: var(--muted); }
.row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
.err { color: var(--wrong); margin-top: var(--space-3); }
.hide { display: none !important; }

/* roomy: pairs sit side by side, buttons stop being full-bleed */
@media (min-width: 680px) {
  .wrap { padding: 0 var(--space-5); }
  .pair { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
  .menu button { margin-top: 0; }
  .menu { display: grid; gap: var(--space-3); grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
  button.auto { width: auto; min-width: 200px; }
}

/* desk: real desktop layouts — two panes for the console, grid for dashboards */
@media (min-width: 1024px) {
  body { font-size: 17px; }
  .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
  .two-pane { display: grid; grid-template-columns: minmax(280px, 360px) 1fr; gap: var(--space-4); align-items: start; }
  .two-pane > .detail { position: sticky; top: var(--space-4); }
}

/* Hover states only where a real pointer exists — a phone must not inherit them. */
@media (hover: hover) {
  button:hover:not(:disabled) { filter: brightness(1.06); }
  .opt:hover:not(:disabled) { border-color: var(--accent); }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  section[id^="v-"]:not(.hide) { animation: none; }
}
html.exam section[id^="v-"]:not(.hide) { animation: none; }