/* ============================================================
   מאגר בטיחות ועזרה ראשונה — תרגול
   Aesthetic: construction-site safety signage.
   Hazard amber on ink, blueprint grid, slab display type.
   RTL-first: logical properties only (start/end, never left/right).
   ============================================================ */

:root {
  --ink:        #14161a;
  --ink-soft:   #262a31;
  --ink-line:   #3a404a;
  --paper:      #f2eee4;
  --paper-2:    #e8e2d4;
  --paper-3:    #dcd4c2;
  --amber:      #f5b301;
  --amber-deep: #cf8f00;
  --amber-wash: #fdf0cd;
  --ok:         #1f7a4d;
  --ok-wash:    #e2f2e8;
  --no:         #b32020;
  --no-wash:    #fae6e4;
  --muted:      #6d6a60;

  --shadow-hard: 5px 5px 0 var(--ink);
  --shadow-soft: 0 2px 0 var(--paper-3), 0 14px 30px -18px rgba(20, 22, 26, .5);

  --font-display: "Suez One", "Frank Ruhl Libre", Georgia, serif;
  --font-body: "Frank Ruhl Libre", "Suez One", Georgia, serif;
  --font-mono: "Azeret Mono", ui-monospace, "SFMono-Regular", monospace;

  --shell: 62rem;
  --radius: 3px;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(1rem, .96rem + .22vw, 1.1rem);
  line-height: 1.62;
  color: var(--ink);
  background-color: var(--paper);
  /* blueprint grid + warm vignette */
  background-image:
    linear-gradient(to bottom, rgba(20,22,26,.05), transparent 22rem),
    linear-gradient(var(--paper-3) 1px, transparent 1px),
    linear-gradient(to left, var(--paper-3) 1px, transparent 1px);
  background-size: 100% 100%, 100% 2.25rem, 2.25rem 100%;
  background-attachment: fixed;
}

/* paper grain */
.grain {
  position: fixed; inset: 0; z-index: 999; pointer-events: none;
  opacity: .32; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
}

.view { max-width: var(--shell); margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2rem); padding-block-end: 5rem; }
[hidden] { display: none !important; }

::selection { background: var(--amber); color: var(--ink); }

:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 3px;
}

/* ── hazard stripe ─────────────────────────────────────── */
.hazard {
  height: 12px;
  background-image: repeating-linear-gradient(
    -45deg,
    var(--amber) 0 14px,
    var(--ink) 14px 28px
  );
}

/* screen-reader-only page heading (the visible masthead was removed) */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ── stats strip ───────────────────────────────────────── */
.stats {
  margin-block-start: clamp(2rem, 6vw, 3.5rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(7rem, 1fr));
  gap: 1px;
  background: var(--ink-line);
  border: 2px solid var(--ink);
  margin-block-end: 3.25rem;
  animation: rise .6s cubic-bezier(.2,.8,.3,1) .16s both;
}
.stat {
  background: var(--paper);
  padding: 1rem .75rem;
  text-align: center;
}
.stat__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.85rem;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.stat__label {
  display: block;
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--muted);
  margin-block-start: .2rem;
}

/* ── section titles ────────────────────────────────────── */
.section-title {
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .2em;
  text-transform: uppercase;
  margin: 0 0 1.15rem;
  display: flex;
  align-items: center;
  gap: .9rem;
}
.section-title::after {
  content: "";
  flex: 1;
  height: 2px;
  background: var(--ink);
}

/* ── exam cards ────────────────────────────────────────── */
.cards { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.15rem; }

.card {
  --lift: 0px;
  position: relative;
  display: block;
  inline-size: 100%;
  text-align: start;
  font: inherit;
  color: inherit;
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem 1.4rem 1.5rem;
  padding-inline-start: 4.6rem;
  cursor: pointer;
  box-shadow: var(--shadow-hard);
  transform: translate(0, 0);
  transition: transform .16s cubic-bezier(.2,.8,.3,1), box-shadow .16s cubic-bezier(.2,.8,.3,1), background-color .16s;
  animation: rise .5s cubic-bezier(.2,.8,.3,1) both;
  animation-delay: calc(var(--i, 0) * 70ms + .2s);
}
/* in RTL the hard shadow should fall to the inline-end (visually left) */
.card:hover, .card:focus-visible {
  transform: translate(3px, -3px);
  box-shadow: 8px 8px 0 var(--ink);
  background: var(--amber-wash);
}
.card:active { transform: translate(0, 0); box-shadow: 2px 2px 0 var(--ink); }

/* group heading inside the exam list */
.cards__head {
  margin-block-start: 1.6rem;
  animation: rise .5s cubic-bezier(.2,.8,.3,1) both;
}
.cards__head:first-child { margin-block-start: 0; }
.cards__head .section-title { margin: 0; }

/* topic drills carry no numbered tab, so reserve no room for one */
.card--compact { padding-inline-start: 1.5rem; }

.card__index {
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0;
  inline-size: 3.3rem;
  block-size: 100%;
  background: var(--ink);
  color: var(--amber);
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.15rem;
  display: grid;
  place-items: center;
}
.card__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  margin: 0 0 .35rem;
  line-height: 1.25;
}
.card__desc { margin: 0 0 .85rem; color: var(--muted); font-size: .93rem; }
.card__meta { display: flex; flex-wrap: wrap; gap: .45rem; }

.tag {
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .06em;
  padding: .25rem .55rem;
  border: 1.5px solid var(--ink);
  background: var(--paper-2);
}
.tag--amber { background: var(--amber); }

/* ── footer ────────────────────────────────────────────── */
.foot {
  margin-block-start: 3.5rem;
  padding-block-start: 1.2rem;
  border-block-start: 2px solid var(--ink);
  font-size: .82rem;
  color: var(--muted);
}
.foot strong { color: var(--ink); }

/* ── exam topbar ───────────────────────────────────────── */
.topbar {
  position: sticky;
  inset-block-start: 0;
  z-index: 20;
  background: var(--ink);
  color: var(--paper);
  margin-inline: calc(clamp(1rem, 4vw, 2rem) * -1);
  padding-inline: clamp(1rem, 4vw, 2rem);
  box-shadow: 0 10px 24px -16px rgba(20,22,26,.85);
}
.topbar__row {
  display: flex;
  align-items: center;
  gap: 1rem;
  max-width: var(--shell);
  margin-inline: auto;
  padding-block: .8rem;
}
.topbar__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(.95rem, .85rem + .5vw, 1.2rem);
  margin: 0;
  flex: 1;
  min-inline-size: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.topbar__count {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1rem;
  margin: 0;
  font-variant-numeric: tabular-nums;
  flex: none;
}
.topbar__count .slash { color: var(--ink-line); margin-inline: .15rem; }
#answered-count { color: var(--amber); }

.progress {
  block-size: 5px;
  background: var(--ink-soft);
  max-width: var(--shell);
  margin-inline: auto;
}
.progress__fill {
  block-size: 100%;
  inline-size: 0%;
  background: var(--amber);
  transition: inline-size .3s cubic-bezier(.2,.8,.3,1);
}

/* ── buttons ───────────────────────────────────────────── */
.btn {
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .06em;
  padding: .62rem 1.1rem;
  border: 2px solid currentColor;
  border-radius: var(--radius);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  transition: transform .14s, background-color .14s, color .14s;
}
.btn:active { transform: translateY(1px); }

.btn--ghost { background: transparent; color: inherit; }
.btn--ghost:hover { background: var(--amber); color: var(--ink); border-color: var(--amber); }

.btn--primary {
  background: var(--amber);
  color: var(--ink);
  border-color: var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
  padding: .85rem 1.8rem;
  font-size: .95rem;
}
.btn--primary:hover { background: var(--ink); color: var(--amber); }
.btn--primary:active { box-shadow: 1px 1px 0 var(--ink); }
.btn--primary:disabled {
  background: var(--paper-3); color: var(--muted); border-color: var(--paper-3);
  box-shadow: none; cursor: not-allowed;
}

/* ── question list ─────────────────────────────────────── */
.form { padding-block-start: 2.25rem; }

.qlist { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.4rem; }

.q {
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  scroll-margin-block-start: 5.5rem;
}
.q.is-unanswered { border-color: var(--no); }

.q__head {
  display: flex;
  align-items: stretch;
  gap: 0;
  border-block-end: 2px solid var(--ink);
}
.q__num {
  flex: none;
  inline-size: 3.3rem;
  background: var(--ink);
  color: var(--amber);
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1rem;
  display: grid;
  place-items: center;
  font-variant-numeric: tabular-nums;
}
.q__text {
  margin: 0;
  padding: .95rem 1.15rem;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.06rem;
  line-height: 1.45;
}

.q__flag {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem 1.15rem;
  background: var(--amber-wash);
  border-block-end: 2px solid var(--ink);
  font-size: .78rem;
  color: #6b5300;
}
.q__flag svg { flex: none; }

.opts { list-style: none; margin: 0; padding: 0; }
.opts li + li { border-block-start: 1px solid var(--paper-3); }

.opt {
  display: flex;
  align-items: flex-start;
  gap: .8rem;
  padding: .72rem 1.15rem;
  cursor: pointer;
  position: relative;
  transition: background-color .13s;
}
.opt::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block: 0;
  inline-size: 5px;
  background: transparent;
  transition: background-color .13s;
}
.opt:hover { background: var(--paper-2); }
.opt input { position: absolute; opacity: 0; pointer-events: none; }

.opt__key {
  flex: none;
  inline-size: 1.75rem;
  block-size: 1.75rem;
  border: 2px solid var(--ink);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: .82rem;
  background: var(--paper);
  transition: background-color .13s, color .13s, transform .13s;
}
.opt__text { padding-block-start: .1rem; }

.opt:has(input:checked) { background: var(--amber-wash); }
.opt:has(input:checked)::before { background: var(--amber); }
.opt:has(input:checked) .opt__key { background: var(--ink); color: var(--amber); transform: scale(1.06); }
.opt:has(input:focus-visible) .opt__key { outline: 3px solid var(--ink); outline-offset: 2px; }

/* ── submit slab ───────────────────────────────────────── */
.submit-slab {
  margin-block-start: 2.5rem;
  border: 2px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  padding: 1.7rem 1.5rem;
  text-align: center;
  border-radius: var(--radius);
}
.submit-slab__note {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .04em;
  margin: 0 0 1.1rem;
  color: #b8b2a4;
}
.submit-slab__note.is-ready { color: var(--amber); }

/* ── scoreboard ────────────────────────────────────────── */
.scoreboard {
  background: var(--ink);
  color: var(--paper);
  margin-inline: calc(clamp(1rem, 4vw, 2rem) * -1);
  padding: clamp(2rem, 5vw, 3.2rem) clamp(1rem, 4vw, 2rem) 0;
  text-align: center;
  margin-block-end: 3rem;
  animation: rise .5s cubic-bezier(.2,.8,.3,1) both;
}
.scoreboard__exam {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0 0 .9rem;
}
.scoreboard__dial {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: .5rem;
}
.scoreboard__score {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: clamp(4.2rem, 2rem + 12vw, 8.5rem);
  line-height: .85;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.04em;
}
.scoreboard__of {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--ink-line);
  font-weight: 600;
}
.is-pass .scoreboard__score { color: var(--amber); }
.is-fail .scoreboard__score { color: #ef6a5a; }

.verdict {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1rem + 1vw, 1.7rem);
  margin: .9rem 0 0;
}
.is-pass .verdict::before { content: "✓ "; color: var(--amber); }
.is-fail .verdict::before { content: "✕ "; color: #ef6a5a; }

.tally {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1px;
  margin: 1.8rem auto 0;
  max-inline-size: 30rem;
  background: var(--ink-line);
  border: 1px solid var(--ink-line);
}
.tally__item { background: var(--ink); padding: .8rem 1.4rem; flex: 1 1 6rem; }
.tally__item dt { font-size: .72rem; color: #a8a294; letter-spacing: .06em; }
.tally__item dd {
  margin: .15rem 0 0;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.5rem;
  font-variant-numeric: tabular-nums;
}
.tally__item--ok dd { color: #5fce97; }
.tally__item--no dd { color: #ef6a5a; }

.scoreboard__actions {
  display: flex;
  gap: .8rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 2rem 0;
}
.scoreboard .btn--ghost { color: var(--paper); }

/* ── topic breakdown ───────────────────────────────────── */
.breakdown { margin-block-end: 3rem; }
.topics { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
.topic {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: .3rem .9rem;
  align-items: center;
  border: 2px solid var(--ink);
  background: var(--paper);
  padding: .7rem .95rem;
  border-radius: var(--radius);
}
.topic__name { font-size: .92rem; }
.topic__score {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: .9rem;
  font-variant-numeric: tabular-nums;
}
.topic__bar {
  grid-column: 1 / -1;
  block-size: 6px;
  background: var(--paper-3);
  overflow: hidden;
}
.topic__bar span { display: block; block-size: 100%; background: var(--ink); }
.topic--weak .topic__bar span { background: var(--no); }
.topic--strong .topic__bar span { background: var(--ok); }

/* ── review ────────────────────────────────────────────── */
.review__head {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-block-end: 1.15rem;
}
.review__head .section-title { margin: 0; flex: 1; min-inline-size: 10rem; }

.filters { display: flex; gap: .4rem; }
.chip {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .05em;
  padding: .35rem .8rem;
  border: 2px solid var(--ink);
  background: var(--paper);
  cursor: pointer;
  border-radius: var(--radius);
  transition: background-color .13s, color .13s;
}
.chip:hover { background: var(--amber-wash); }
.chip.is-on { background: var(--ink); color: var(--amber); }

.qlist--review .q { box-shadow: none; }
.q--correct { border-color: var(--ok); }
.q--correct .q__num { background: var(--ok); color: #fff; }
.q--wrong { border-color: var(--no); }
.q--wrong .q__num { background: var(--no); color: #fff; }
.q--blank { border-color: var(--muted); }
.q--blank .q__num { background: var(--muted); color: var(--paper); }
.q--correct .q__head, .q--wrong .q__head, .q--blank .q__head { border-block-end-color: currentColor; }
.q--correct .q__head { border-block-end-color: var(--ok); }
.q--wrong .q__head { border-block-end-color: var(--no); }
.q--blank .q__head { border-block-end-color: var(--muted); }

.rev-opt {
  display: flex;
  align-items: flex-start;
  gap: .8rem;
  padding: .6rem 1.15rem;
  position: relative;
}
.rev-opt + .rev-opt { border-block-start: 1px solid var(--paper-3); }
.rev-opt__key {
  flex: none;
  inline-size: 1.7rem;
  block-size: 1.7rem;
  border: 2px solid var(--paper-3);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: .8rem;
  color: var(--muted);
}
.rev-opt__text { padding-block-start: .08rem; color: var(--muted); }
.rev-opt__badge {
  margin-inline-start: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: .66rem;
  font-weight: 800;
  letter-spacing: .05em;
  padding: .2rem .45rem;
  border-radius: 2px;
  align-self: center;
}

.rev-opt--answer { background: var(--ok-wash); }
.rev-opt--answer .rev-opt__key { border-color: var(--ok); background: var(--ok); color: #fff; }
.rev-opt--answer .rev-opt__text { color: var(--ink); font-weight: 500; }
.rev-opt--answer .rev-opt__badge { background: var(--ok); color: #fff; }

.rev-opt--picked { background: var(--no-wash); }
.rev-opt--picked .rev-opt__key { border-color: var(--no); background: var(--no); color: #fff; }
.rev-opt--picked .rev-opt__text { color: var(--ink); }
.rev-opt--picked .rev-opt__badge { background: var(--no); color: #fff; }

.q__source {
  font-family: var(--font-mono);
  font-size: .68rem;
  color: var(--muted);
  padding: .5rem 1.15rem;
  border-block-start: 1px solid var(--paper-3);
  background: var(--paper-2);
}

/* ── motion ────────────────────────────────────────────── */
@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── small screens ─────────────────────────────────────── */
@media (max-width: 34rem) {
  .card { padding-inline-start: 3.9rem; }
  .card--compact { padding-inline-start: .85rem; }
  .card__index { inline-size: 2.7rem; font-size: 1rem; }
  .q__num { inline-size: 2.7rem; }
  .q__text, .opt, .rev-opt, .q__flag, .q__source { padding-inline: .85rem; }
  .scoreboard__actions .btn { flex: 1 1 100%; justify-content: center; }
}

/* ── print: answer key / practice sheet ────────────────── */
@media print {
  body { background: #fff; }
  .grain, .topbar, .submit-slab, .scoreboard__actions, .filters { display: none !important; }
  .q { break-inside: avoid; box-shadow: none; }
}