:root {
  --canvas: #394b58;
  --canvas-2: #2d3b45;
  --submit: #c23c2a;
  --next: #0374b5;
  --ink: #2d3b45;
  --soft: #6b7780;
  --line: #d6dbe1;
  --pick: #e8f4fb;
  --good: #0b824b;
  --good-bg: #e5f6ee;
  --bad: #c23c2a;
  --bad-bg: #fdecea;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: Lato, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #eef2f5;
  color: var(--ink);
}

.hidden { display: none !important; }

.banner {
  background: #14324f;
  color: #fff;
  text-align: center;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .02em;
  padding: .45rem .8rem;
}

.start {
  min-height: calc(100vh - 34px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 2rem 1rem;
}
.start-card {
  background: #fff;
  max-width: 640px;
  width: 100%;
  padding: 1.6rem 1.5rem 1.4rem;
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0,0,0,.12);
}
.eyebrow { margin: 0; color: var(--soft); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; }
.start-card h1 { margin: .3rem 0 1rem; font-size: 1.45rem; }
.start-card ul { padding-left: 1.2rem; }
.start-card li { margin: .3rem 0; }
.fine { color: var(--soft); font-size: .9rem; }
.start-actions { display: flex; gap: .8rem; align-items: center; flex-wrap: wrap; margin-top: 1.1rem; }
.btn-take {
  background: var(--next);
  color: #fff;
  border: 0;
  padding: .7rem 1.15rem;
  font-weight: 700;
  font-size: 1rem;
  border-radius: 3px;
  cursor: pointer;
}
.link-back { color: var(--next); text-decoration: none; font-weight: 600; }

.nq-top {
  background: var(--canvas);
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: .85rem 1.1rem;
}
.nq-title { font-weight: 700; }
.nq-meta { font-size: .85rem; opacity: .85; margin-top: .15rem; }
.btn-submit {
  background: var(--submit);
  color: #fff;
  border: 0;
  padding: .55rem .95rem;
  font-weight: 700;
  border-radius: 3px;
  cursor: pointer;
  white-space: nowrap;
}

.nq-body {
  display: grid;
  grid-template-columns: 210px 1fr;
  max-width: 1080px;
  margin: 0 auto;
  min-height: calc(100vh - 90px);
}
.nq-nav {
  background: #fff;
  border-right: 1px solid var(--line);
  padding: .9rem .75rem;
}
.nq-nav h3 {
  margin: 0 0 .6rem;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--soft);
}
.q-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: .35rem; }
.q-pill {
  border: 1px solid var(--line);
  background: #fff;
  height: 36px;
  border-radius: 3px;
  cursor: pointer;
  font-weight: 700;
}
.q-pill.current { outline: 2px solid var(--next); }
.q-pill.answered { background: #d9edf7; border-color: #9acfea; }
.q-pill.flagged::after { content: "⚑"; font-size: .7rem; margin-left: .1rem; }

.nq-main {
  background: #fff;
  padding: 1.2rem 1.3rem 5rem;
}
.q-kicker { color: var(--soft); font-size: .85rem; margin: 0 0 .35rem; }
.nq-main h2 { margin: 0 0 .7rem; font-size: 1.15rem; font-weight: 600; }
.nq-main img {
  display: block;
  max-width: min(100%, 520px);
  height: auto;
  margin: .4rem 0 1rem;
  border: 1px solid var(--line);
}
.opts { display: grid; gap: .5rem; }
.opt {
  display: flex;
  gap: .65rem;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: .7rem .8rem;
  cursor: pointer;
  background: #fff;
}
.opt input { margin-top: .25rem; }
.opt.on { background: var(--pick); border-color: var(--next); }
.opt.good { background: var(--good-bg); border-color: var(--good); }
.opt.bad { background: var(--bad-bg); border-color: var(--bad); }

.nq-footer {
  position: sticky;
  bottom: 0;
  background: #fff;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: .5rem;
  padding: .75rem 0 0;
  margin-top: 1.4rem;
}
.btn-ghost, .btn-next {
  border: 1px solid var(--line);
  background: #fff;
  padding: .55rem .9rem;
  border-radius: 3px;
  cursor: pointer;
  font-weight: 700;
}
.btn-next { background: var(--next); color: #fff; border-color: var(--next); }

.results {
  max-width: 760px;
  margin: 1.2rem auto 2rem;
  background: #fff;
  padding: 1.3rem 1.2rem;
  border-radius: 6px;
}
.big-score { font-size: 2rem; font-weight: 800; margin: .2rem 0 .8rem; }
.rev { border-top: 1px solid var(--line); padding: .9rem 0; }
.rev.ok { border-left: 4px solid var(--good); padding-left: .8rem; }
.rev.no { border-left: 4px solid var(--bad); padding-left: .8rem; }
.why { color: var(--soft); margin: .35rem 0 0; }

@media (max-width: 800px) {
  .nq-body { grid-template-columns: 1fr; }
  .nq-nav { border-right: 0; border-bottom: 1px solid var(--line); }
  .q-list { grid-template-columns: repeat(10, 1fr); }
}