/* ===== Praxis — clean, light theme with violet accents =====
   Light is default; a subtle dark mode is available via the toggle. */
:root {
  --violet: #7c3aed;
  --violet-600: #6d28d9;
  --violet-50: #f3efff;
  --indigo: #6366f1;
  --cyan: #06b6d4;
  --blue: #3b82f6;

  --bg: #f6f7fb;
  --panel: #ffffff;
  --panel-2: #f2f3f8;
  --border: #e7e8f0;
  --text: #191b2e;
  --muted: #6b7184;
  --good: #16a34a;
  --good-bg: #ecfdf3;
  --bad: #dc2626;
  --bad-bg: #fef2f2;
  --accent: var(--violet);
  --radius: 16px;
  --shadow: 0 6px 24px rgba(30, 27, 75, 0.06);
  --shadow-lg: 0 18px 50px rgba(30, 27, 75, 0.14);
}

html[data-theme="dark"] {
  --bg: #0f1117;
  --panel: #171a23;
  --panel-2: #1f2330;
  --border: #2a2f3e;
  --text: #e8eaf2;
  --muted: #98a0b3;
  --good: #34d399;
  --good-bg: rgba(52, 211, 153, 0.12);
  --bad: #f87171;
  --bad-bg: rgba(248, 113, 113, 0.12);
  --violet-50: rgba(124, 58, 237, 0.14);
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.5);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  transition: background 0.2s, color 0.2s;
}

/* ===== Brain logo ===== */
.brand-logo-sm { display: inline-grid; width: 34px; height: 34px; place-items: center; }
.brand-logo-sm svg { width: 34px; height: 34px; }
.brand-logo-lg { width: 96px; height: 96px; margin-bottom: 18px; }
.brand-logo-lg svg { width: 96px; height: 96px; }
.hero-logo { width: 150px; height: 150px; flex: none; opacity: 0.95; }
.hero-logo svg { width: 150px; height: 150px; }
@media (prefers-reduced-motion: reduce) {
  .electron { animation: none !important; }
}

/* ===== Top bar ===== */
.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 30;
}
.topbar-inner {
  max-width: 1080px; margin: 0 auto; padding: 12px 22px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 11px; }
.brand-text { display: flex; flex-direction: column; justify-content: center; line-height: 1.05; }
.wordmark {
  font-weight: 800; font-size: 21px; letter-spacing: -0.4px; color: var(--text);
}
.brand-tagline {
  font-size: 9.5px; font-weight: 500; letter-spacing: 0.2px;
  color: var(--muted); opacity: 0.6; margin-top: 1px;
}
.tagline { display: none; }
.dev-tag {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 10px; font-weight: 800; letter-spacing: 0.6px; color: #b45309;
  background: #fff7ed; border: 1px solid #fed7aa; padding: 2px 8px; border-radius: 20px;
}
.dev-dot {
  width: 7px; height: 7px; border-radius: 50%; background: #f59e0b;
  box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.6); animation: dev-pulse 2s infinite;
}
@keyframes dev-pulse {
  0% { box-shadow: 0 0 0 0 rgba(245,158,11,0.55); }
  70% { box-shadow: 0 0 0 6px rgba(245,158,11,0); }
  100% { box-shadow: 0 0 0 0 rgba(245,158,11,0); }
}
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.icon-btn {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--muted);
  width: 38px; height: 38px; border-radius: 10px; cursor: pointer;
  display: grid; place-items: center;
}
.icon-btn svg { width: 18px; height: 18px; display: block; }
.icon-btn:hover { border-color: var(--violet); color: var(--violet); }
.user-chip {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--panel-2); border: 1px solid var(--border);
  color: var(--text); font-size: 13px; padding: 5px 6px 5px 13px; border-radius: 22px;
}
.user-chip[hidden] { display: none; }
.user-chip .chip-x {
  background: var(--violet); border: none; color: #fff;
  font-size: 11px; font-weight: 600; padding: 5px 11px; border-radius: 16px; cursor: pointer;
}
.user-chip .chip-x:hover { background: var(--violet-600); }

/* ===== Layout ===== */
main { max-width: 1080px; margin: 0 auto; padding: 30px 22px 130px; }
.view { animation: fade 0.25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
h2 { font-size: 22px; margin: 0 0 4px; }
.muted { color: var(--muted); }
.source { font-size: 13px; color: var(--violet-600); margin: 6px 0 0; }
.status { color: var(--muted); font-size: 13px; margin: 8px 2px 16px; }
.status code { background: var(--panel-2); padding: 1px 6px; border-radius: 5px; }
.grad {
  background: linear-gradient(90deg, var(--violet), var(--blue), var(--cyan));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ===== Landing (signed out) ===== */
.landing { padding-top: 24px; }
.landing-grid {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center;
  min-height: 70vh;
}
.landing-pitch { max-width: 540px; }
.landing-title { font-size: 44px; line-height: 1.1; margin: 6px 0 14px; letter-spacing: -1px; }
.landing-sub { font-size: 16px; color: var(--muted); margin: 0 0 22px; }
.landing-points { list-style: none; padding: 0; margin: 0; display: grid; gap: 11px; }
.landing-points li {
  font-size: 14px; color: var(--text); position: relative; padding-left: 22px;
}
.landing-points li::before {
  content: ""; position: absolute; left: 0; top: 7px;
  width: 8px; height: 8px; border-radius: 50%;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
}

.auth-card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 20px; padding: 30px 28px; box-shadow: var(--shadow-lg);
}
.auth-card-title { font-size: 20px; margin: 0 0 4px; }
.auth-card-sub { font-size: 13px; color: var(--muted); margin: 0 0 22px; }
.auth-tabs {
  display: flex; gap: 6px; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 12px; padding: 4px; margin-bottom: 20px;
}
.auth-tab {
  flex: 1; padding: 9px; border: none; background: transparent; border-radius: 9px;
  font-size: 14px; font-weight: 700; color: var(--muted); cursor: pointer; transition: all 0.15s;
}
.auth-tab.is-active { background: var(--panel); color: var(--violet); box-shadow: var(--shadow); }
.google-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: 12px; border: 1px solid var(--border); border-radius: 12px;
  background: var(--panel); color: var(--text); font-weight: 600; font-size: 14px;
  text-decoration: none; cursor: pointer; transition: border-color 0.12s, background 0.12s;
}
.google-btn:hover { border-color: var(--violet); background: var(--panel-2); }
.auth-or { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 12px; margin: 18px 0; }
.auth-or::before, .auth-or::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.auth-form { display: flex; flex-direction: column; gap: 11px; }
.auth-form[hidden] { display: none; }
.auth-label { font-size: 13px; color: var(--muted); }
.auth-input {
  padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px;
  background: var(--bg); color: var(--text); font-size: 15px;
}
.auth-input:focus { outline: none; border-color: var(--violet); box-shadow: 0 0 0 3px var(--violet-50); }
.auth-input.code { letter-spacing: 12px; text-align: center; font-size: 24px; font-weight: 700; }
.link-btn { background: none; border: none; color: var(--violet); font-size: 13px; cursor: pointer; padding: 4px; }
.auth-msg { font-size: 13px; margin: 14px 0 0; min-height: 18px; text-align: center; }
.auth-msg.err { color: var(--bad); }
.auth-msg.ok { color: var(--good); }

/* ===== Buttons ===== */
.primary-btn {
  background: var(--violet); color: #fff; font-weight: 700; font-size: 14px;
  border: none; border-radius: 11px; padding: 11px 20px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  transition: background 0.15s, transform 0.1s, box-shadow 0.2s;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3);
}
.primary-btn:hover { background: var(--violet-600); transform: translateY(-1px); }
.primary-btn:disabled { background: var(--border); color: var(--muted); box-shadow: none; cursor: not-allowed; transform: none; }
.primary-btn.full { width: 100%; justify-content: center; }
.btn-ico { font-weight: 700; }
.ghost-btn {
  background: var(--panel); color: var(--text); border: 1px solid var(--border);
  border-radius: 11px; padding: 10px 17px; cursor: pointer; font-size: 14px;
}
.ghost-btn:hover { border-color: var(--violet); }
.ghost-btn.small { padding: 7px 14px; font-size: 13px; }

/* ===== Hero (signed-in catalog header) ===== */
.hero {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  background: linear-gradient(120deg, var(--violet-50), var(--panel) 60%);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 28px; margin-bottom: 24px; box-shadow: var(--shadow); overflow: hidden;
}
.hero-text { max-width: 60ch; }
.hero-title { font-size: 25px; margin: 0 0 6px; letter-spacing: -0.5px; }
.hero-sub { margin: 0 0 18px; color: var(--muted); font-size: 14px; }
.hero-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.import-status { font-size: 13px; color: var(--muted); }
.import-status.ok { color: var(--good); }
.import-status.err { color: var(--bad); }

/* ===== Catalog cards ===== */
.card-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px;
}
.test-card {
  position: relative; background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; cursor: pointer;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
  display: flex; flex-direction: column; gap: 8px; box-shadow: var(--shadow);
}
.test-card:hover { border-color: var(--violet); transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.course-chip {
  align-self: flex-start; background: var(--violet-50); color: var(--violet-600);
  font-size: 11px; font-weight: 800; letter-spacing: 0.4px; padding: 3px 10px; border-radius: 20px;
}
.test-card h3 { margin: 4px 0 0; font-size: 16px; }
.test-card p { margin: 0; font-size: 13px; color: var(--muted); }
.card-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.meta { font-size: 12px; color: var(--violet-600); font-weight: 700; }
.saved-badge { font-size: 11px; font-weight: 700; padding: 2px 9px; border-radius: 20px; border: 1px solid var(--border); }
.saved-badge.submitted { color: var(--good); border-color: var(--good); background: var(--good-bg); }
.saved-badge.progress { color: var(--violet); border-color: var(--violet); background: var(--violet-50); }
.lib-badge {
  position: absolute; top: 16px; right: 16px;
  font-size: 10px; font-weight: 800; letter-spacing: 0.5px; text-transform: uppercase;
  padding: 3px 9px; border-radius: 20px;
  background: var(--violet-50); color: var(--violet-600); border: 1px solid rgba(124,58,237,0.25);
}
.lib-badge.account { background: var(--good-bg); color: var(--good); border-color: rgba(22,163,74,0.3); }
.card-actions { display: flex; gap: 8px; margin-top: 12px; }
.card-btn {
  font-size: 12px; font-weight: 600; padding: 7px 13px; border-radius: 9px;
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  cursor: pointer; transition: border-color 0.12s, color 0.12s;
}
.card-btn:hover { border-color: var(--violet); }
.card-btn.danger:hover { border-color: var(--bad); color: var(--bad); }

/* ===== Test header ===== */
.test-header {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 24px; margin-bottom: 22px; box-shadow: var(--shadow);
}
.crumb { margin: 0 0 6px; font-size: 12px; font-weight: 700; letter-spacing: 0.4px; color: var(--violet-600); }
.controls { margin-top: 14px; }
.toggle { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); cursor: pointer; }
.toggle input { accent-color: var(--violet); }

/* ===== Questions ===== */
.q-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 24px; margin-bottom: 16px; box-shadow: var(--shadow);
}
.q-head { display: flex; gap: 13px; align-items: baseline; margin-bottom: 14px; }
.q-num {
  background: var(--violet); color: #fff; font-weight: 700; font-size: 13px;
  min-width: 30px; height: 30px; display: grid; place-items: center; border-radius: 9px;
}
.q-text { font-size: 16px; font-weight: 600; }
.q-hint { font-size: 11px; font-weight: 700; letter-spacing: 0.3px; text-transform: uppercase; color: var(--violet-600); margin-top: 5px; }
.q-topic { font-size: 11px; color: var(--muted); margin-top: 4px; font-weight: 400; }

.options { display: flex; flex-direction: column; gap: 10px; }
.option {
  display: flex; align-items: flex-start; gap: 12px; padding: 13px 15px;
  border: 1px solid var(--border); border-radius: 12px; cursor: pointer;
  transition: border-color 0.12s, background 0.12s;
}
.option:hover { border-color: var(--violet); }
.option input { margin-top: 3px; accent-color: var(--violet); }
.option .opt-key { font-weight: 700; color: var(--violet-600); margin-right: 2px; }
.option.selected { border-color: var(--violet); background: var(--violet-50); }
.option.correct { border-color: var(--good); background: var(--good-bg); }
.option.incorrect { border-color: var(--bad); background: var(--bad-bg); }
.option.locked { cursor: default; }
.option .mark { margin-left: auto; font-weight: 700; white-space: nowrap; }
.option.correct .mark { color: var(--good); }
.option.incorrect .mark { color: var(--bad); }

.reveal-btn {
  display: inline-flex; align-items: center; gap: 7px; margin-top: 14px;
  font-size: 13px; font-weight: 600; color: var(--violet);
  background: var(--violet-50); border: 1px solid rgba(124, 58, 237, 0.3);
  padding: 8px 14px; border-radius: 10px; cursor: pointer; transition: background 0.12s;
}
.reveal-btn:hover { background: #eae3ff; }
.reveal-btn svg { width: 16px; height: 16px; }
.reveal-btn[hidden] { display: none; }

.explain {
  margin-top: 14px; border-left: 3px solid var(--violet);
  background: var(--violet-50); border-radius: 0 10px 10px 0; padding: 13px 16px; font-size: 14px;
}
.explain[hidden] { display: none; }
.explain .ex-label { font-weight: 700; color: var(--violet-600); font-size: 12px; letter-spacing: 0.4px; text-transform: uppercase; }
.explain .ex-ref { display: block; margin-top: 6px; font-size: 12px; color: var(--muted); }
.q-card.is-correct { border-color: var(--good); }
.q-card.is-incorrect { border-color: var(--bad); }

/* ===== Submit / score ===== */
.submit-bar { display: flex; align-items: center; gap: 14px; margin-top: 24px; }
.scorebar {
  position: fixed; bottom: 0; left: 0; right: 0; background: var(--panel);
  border-top: 1px solid var(--border); z-index: 25; box-shadow: 0 -8px 28px rgba(30,27,75,0.1);
}
.scorebar-inner { max-width: 1080px; margin: 0 auto; padding: 14px 22px; display: flex; align-items: center; gap: 20px; }
.score-main { display: flex; align-items: baseline; gap: 10px; }
.score-pct { font-size: 30px; font-weight: 800; color: var(--violet); }
.score-frac { font-size: 14px; color: var(--muted); }
.score-verdict { font-size: 14px; font-weight: 700; }
.score-verdict.pass { color: var(--good); }
.score-verdict.fail { color: var(--bad); }
.scorebar .ghost-btn { margin-left: auto; }

/* ===== Footer (shown everywhere) ===== */
.site-footer { max-width: 1080px; margin: 0 auto; padding: 0 22px 60px; }
.footer-card {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 14px 20px; box-shadow: var(--shadow);
}
.footer-note { font-size: 13px; color: var(--muted); display: inline-flex; align-items: center; gap: 8px; }
.footer-link { font-size: 13px; font-weight: 700; color: var(--violet); text-decoration: none; }
.footer-link:hover { text-decoration: underline; }

/* ===== Toast ===== */
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%);
  background: var(--text); color: var(--bg); padding: 12px 20px; border-radius: 12px;
  font-size: 14px; font-weight: 600; box-shadow: var(--shadow-lg); z-index: 50;
  opacity: 0; transition: opacity 0.25s, transform 0.25s; pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-4px); }

@media (max-width: 820px) {
  .landing-grid { grid-template-columns: 1fr; gap: 28px; min-height: auto; }
  .hero-logo { display: none; }
}
@media (max-width: 560px) {
  body { overflow-x: hidden; }
  .card-grid { grid-template-columns: 1fr; }
  .landing-title { font-size: 34px; }

  /* Topbar: fit a phone width on one row */
  .topbar-inner { padding: 10px 14px; gap: 8px; }
  .brand { gap: 8px; min-width: 0; }
  .wordmark { font-size: 19px; }
  .dev-tag { display: none; }
  .topbar-actions { gap: 6px; }
  .icon-btn { width: 34px; height: 34px; }
  #homeBtn { white-space: nowrap; padding: 7px 10px; font-size: 13px; }
  #userEmail { display: none; }                 /* email is non-essential on mobile */
  .user-chip { padding: 0; border: none; background: transparent; }

  /* Tighter page gutters */
  main { padding: 20px 14px 120px; }

  /* Wizard: stack the cramped rows */
  .gen-step { padding: 16px; }
  .gen-title { font-size: 22px; }
  .gen-steps li { font-size: 11px; }
  .gen-step-name { white-space: nowrap; }
  .gen-back-btn { margin-right: 0; }
  /* selects size to their longest option by default — constrain to the card */
  select.auth-input { width: 100%; max-width: 100%; box-sizing: border-box; }
  .gen-describe-row { flex-direction: column; align-items: stretch; }
  .gen-describe-row .ghost-btn { width: 100%; }
  .gen-plan-row { flex-direction: column; align-items: flex-start; gap: 8px; }
  .gen-plan-count input { margin-left: 0; }

  /* Floating score bar fits the screen */
  .scorebar-inner { padding: 12px 14px; gap: 12px; flex-wrap: wrap; }
  .scorebar .ghost-btn { margin-left: auto; }

  /* Hero action buttons wrap instead of overflowing */
  .hero-actions { flex-wrap: wrap; }
}

/* ---------- Generate-test wizard ---------- */
/* `hidden` must win over component display rules (.primary-btn/.ghost-btn set
   display:flex, which would otherwise override the UA [hidden]{display:none}). */
[hidden] { display: none !important; }
.gen-wrap { max-width: 720px; margin: 0 auto; }
.gen-title { font-size: 28px; font-weight: 800; letter-spacing: -0.02em; margin: 8px 0 4px; }
.gen-subtitle { font-size: 14px; margin: 0 0 28px; }

/* Sleek connected stepper — numbered dots joined by a progress rail.
   No chunky pills; completed steps are neutral (not green) and clickable. */
.gen-steps {
  display: flex; list-style: none; padding: 0; margin: 0 0 28px;
  counter-reset: gen-step;
}
.gen-steps li {
  flex: 1; position: relative; display: flex; flex-direction: column;
  align-items: center; gap: 8px; font-size: 12.5px; font-weight: 600;
  color: var(--muted); transition: color 0.2s;
}
/* connector rail between dots */
.gen-steps li::before {
  content: ""; position: absolute; top: 15px; left: -50%; width: 100%; height: 2px;
  background: var(--border); z-index: 0; transition: background 0.3s;
}
.gen-steps li:first-child::before { display: none; }
.gen-step-dot {
  position: relative; z-index: 1; width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center; font-size: 13px; font-weight: 700;
  background: var(--panel); color: var(--muted);
  border: 2px solid var(--border);
  transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.15s, box-shadow 0.25s;
}
.gen-step-name { transition: color 0.2s; }
/* completed: neutral filled, subtle — NOT green */
.gen-steps li.is-done .gen-step-dot {
  background: var(--panel-2); color: var(--text); border-color: var(--border);
}
.gen-steps li.is-done::before { background: linear-gradient(90deg, var(--violet), var(--indigo)); }
.gen-steps li.is-done .gen-step-name { color: var(--text); }
.gen-steps li.is-done .gen-step-dot::after {
  content: "✓"; font-size: 13px; color: var(--violet);
}
.gen-steps li.is-done .gen-step-dot { color: transparent; }
/* active: violet emphasis */
.gen-steps li.is-active .gen-step-dot {
  background: var(--violet); color: #fff; border-color: var(--violet);
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.35);
}
.gen-steps li.is-active::before { background: linear-gradient(90deg, var(--violet), var(--indigo)); }
.gen-steps li.is-active .gen-step-name { color: var(--text); }
/* clickable steps you've already reached */
.gen-steps li.is-clickable { cursor: pointer; }
.gen-steps li.is-clickable:hover .gen-step-dot { transform: translateY(-2px); border-color: var(--violet); }
.gen-steps li.is-clickable:hover .gen-step-name { color: var(--violet); }

.gen-step { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow); animation: gen-step-in 0.32s cubic-bezier(0.2, 0.7, 0.3, 1); }
@keyframes gen-step-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.gen-back-btn { margin-right: auto; }

/* ===== Animated AI glow border (subtle rotating spectrum) =====
   The button keeps its solid face; only a thin rotating gradient line traces
   the edge, with a faint blurred halo behind. Like Copilot's "AI" affordance. */
@property --ai-angle { syntax: "<angle>"; initial-value: 0deg; inherits: false; }
.ai-glow { position: relative; z-index: 0; }
/* Crisp rotating line, masked to just the 2px border ring (center stays the
   button's own colour). */
.ai-glow::before {
  content: ""; position: absolute; inset: -2px; border-radius: 13px; padding: 2px; z-index: -1;
  background: conic-gradient(from var(--ai-angle),
    #7c3aed, #06b6d4, #3b82f6, #a855f7, #ec4899, #7c3aed);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  animation: ai-spin 4.5s linear infinite;
}
/* Faint blurred halo bleeding out from behind the button. */
.ai-glow::after {
  content: ""; position: absolute; inset: -1px; border-radius: 12px; z-index: -2;
  background: conic-gradient(from var(--ai-angle),
    #7c3aed, #06b6d4, #3b82f6, #a855f7, #ec4899, #7c3aed);
  filter: blur(7px); opacity: 0.28;
  animation: ai-spin 4.5s linear infinite;
}
@keyframes ai-spin { to { --ai-angle: 360deg; } }
@media (prefers-reduced-motion: reduce) {
  .ai-glow::before, .ai-glow::after { animation: none; }
}
.gen-label { display: block; font-size: 13px; font-weight: 600; margin: 16px 0 6px; }
.gen-upload { display: flex; align-items: center; gap: 12px; margin: 14px 0; flex-wrap: wrap; }
.gen-or { text-align: center; color: var(--muted); font-size: 13px; margin: 14px 0; position: relative; }
.gen-or span { background: var(--panel); padding: 0 12px; position: relative; z-index: 1; }
.gen-or::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 1px; background: var(--border); }
.gen-textarea { width: 100%; border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px;
  font: inherit; background: var(--panel-2); color: var(--text); resize: vertical; box-sizing: border-box; }
.gen-actions { display: flex; align-items: center; gap: 12px; margin-top: 20px; flex-wrap: wrap; }
.gen-status { font-size: 13px; color: var(--muted); }
.gen-status.err { color: var(--bad); }
.gen-detected { margin: 0 0 8px; }
.gen-units, .gen-plan-list { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.gen-unit { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border: 1px solid var(--border);
  border-radius: 10px; background: var(--panel-2); cursor: pointer; }
.gen-plan-row { display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel-2); }
.gen-plan-main { display: flex; flex-direction: column; gap: 2px; }
.gen-plan-main .muted { font-size: 12.5px; }
.gen-plan-count { font-size: 13px; color: var(--muted); white-space: nowrap; }
.gen-plan-count input { width: 64px; margin-left: 8px; padding: 6px 8px; border: 1px solid var(--border);
  border-radius: 8px; background: var(--panel); color: var(--text); font: inherit; }
.gen-meta { padding: 14px 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel-2); margin-top: 8px; }
.gen-meta .gen-label:first-child { margin-top: 0; }
.gen-meta-source { font-size: 12.5px; margin: 12px 0 0; word-break: break-word; }
.gen-progress { text-align: center; padding: 30px 0; }
.gen-spinner { width: 38px; height: 38px; margin: 0 auto 16px; border: 3px solid var(--border);
  border-top-color: var(--violet); border-radius: 50%; animation: gen-spin 0.9s linear infinite; }
@keyframes gen-spin { to { transform: rotate(360deg); } }
.gen-report { background: var(--good-bg); border: 1px solid transparent; border-radius: 12px; padding: 18px 20px; }
.gen-report h3 { margin: 0 0 6px; color: var(--good); }
.gen-report p { margin: 0; }
.gen-describe { margin-top: 6px; }
.gen-scope-hint { font-size: 12.5px; margin: 0 0 8px; }
.gen-describe-row { display: flex; gap: 10px; align-items: stretch; }
.gen-describe-row .auth-input { flex: 1; }
.gen-scope-reply { margin: 12px 0 0; padding: 11px 14px; border-radius: 12px; font-size: 14px; line-height: 1.45;
  background: var(--violet-50); color: var(--text); border: 1px solid var(--border); }
.gen-scope-reply.thinking { color: var(--muted); font-style: italic; }
.gen-scope-reply.ok { background: var(--good-bg); border-color: transparent; }
.gen-scope-reply.warn { background: var(--bad-bg); border-color: transparent; }
.gen-focus-chip { margin: 10px 0 0; display: inline-block; padding: 6px 12px; border-radius: 999px;
  background: var(--violet-50); border: 1px solid var(--border); font-size: 13px; font-weight: 600; }
/* The unit picker becomes a secondary affordance under the conversational input. */
#genUnitsLabel { margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--border); }