/* styles.css — اختبار محاكاة عامل تحميل وتنزيل (933301) */

:root {
  --font: "Segoe UI", Tahoma, "Noto Naskh Arabic", Arial, sans-serif;
  --fs: 17px;

  --green-dark: #1B5E3A;
  --green-dark-hover: #174F31;
  --green: #2E7D32;
  --green-border: #4CAF50;
  --green-soft: #E8F5E9;

  --red: #D32F2F;
  --red-hover: #B71C1C;
  --red-soft: #FDECEA;
  --red-border: #F0A9A4;

  --amber: #F59E0B;
  --amber-soft: #FEF3C7;

  --grey-50: #F6F7F8;
  --grey-100: #EEF0F2;
  --grey-200: #D9DDE2;
  --grey-300: #C3C8CF;
  --grey-500: #6B7280;
  --grey-700: #374151;
  --text: #1F2937;

  --radius: 12px;
  --shadow: 0 1px 3px rgba(0, 0, 0, .08);
}
html[data-font="sm"] { --fs: 15px; }
html[data-font="lg"] { --fs: 20px; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  font-size: var(--fs);
  line-height: 1.65;
  color: var(--text);
  background: var(--grey-50);
  -webkit-text-size-adjust: 100%;
}
body.in-exam { background: #fff; }
svg { direction: ltr; }
button { font: inherit; cursor: pointer; color: inherit; }
h1, h2, h3 { line-height: 1.3; }
.num { direction: ltr; unicode-bidi: isolate; font-variant-numeric: tabular-nums; }
.muted { color: var(--grey-500); }
.small { font-size: .92em; }
.hidden { display: none !important; }

/* ---------- عناصر عامة ---------- */
.container { max-width: 920px; margin: 0 auto; padding: 16px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: none; border-radius: 10px; padding: 10px 20px; min-height: 44px;
  font-weight: 600; line-height: 1.3; text-decoration: none; white-space: nowrap;
  transition: background .15s, border-color .15s, opacity .15s;
}
.btn-primary { background: var(--green-dark); color: #fff; }
.btn-primary:hover { background: var(--green-dark-hover); }
.btn-secondary { background: var(--grey-500); color: #fff; }
.btn-secondary:hover { background: var(--grey-700); }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: var(--red-hover); }
.btn-outline { background: #fff; border: 1.5px solid var(--grey-300); color: var(--text); }
.btn-outline:hover { border-color: var(--grey-500); background: var(--grey-50); }
.btn-lg { font-size: 1.08em; padding: 14px 24px; width: 100%; min-height: 56px; }
.btn-sm { padding: 6px 14px; min-height: 36px; font-size: .92em; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn:focus-visible, .opt:focus-visible, .chip:focus-visible { outline: 3px solid #90CAF9; outline-offset: 2px; }

.card {
  background: #fff; border: 1px solid var(--grey-200); border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow); margin-bottom: 14px;
}
.card h3 { margin: 0 0 10px; color: var(--green-dark); font-size: 1.1em; }

.page-top {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 6px 0 14px;
}
.page-top h2 { margin: 0; color: var(--green-dark); font-size: 1.35em; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border-radius: 999px; padding: 4px 12px; border: 1px solid var(--grey-300);
  background: #fff; font-size: .9em; line-height: 1.5;
}
.chip.on { background: var(--green-soft); border-color: var(--green-border); color: var(--green-dark); }
.chip.off { color: var(--grey-500); background: var(--grey-100); }
.chip.active { background: var(--green-dark); color: #fff; border-color: var(--green-dark); }
button.chip:hover { border-color: var(--grey-500); }

.warn {
  background: var(--amber-soft); border: 1px solid #FCD34D; border-radius: 10px;
  padding: 8px 12px; margin-top: 10px; font-size: .95em;
}
.notice {
  background: var(--green-soft); border: 1px solid var(--green-border); border-radius: 10px;
  padding: 8px 12px; margin: 10px 0; font-size: .95em; color: var(--green-dark);
}

.fig svg { display: block; width: 100%; height: auto; aspect-ratio: 1 / 1; }
.fig-sm { width: 140px; max-width: 60vw; margin: 6px auto 10px; }

/* ---------- الرئيسية ---------- */
.home-hero { text-align: center; padding: 28px 16px 10px; }
.home-hero h1 { color: var(--green-dark); margin: 10px 0 4px; font-size: 1.9em; }
.home-hero .sub { margin: 0; color: var(--grey-500); }
.code-badge {
  display: inline-block; background: var(--green-soft); color: var(--green-dark);
  border: 1px solid var(--green-border); border-radius: 999px; padding: 3px 16px;
  font-weight: 700; direction: ltr; letter-spacing: 1px;
}
.menu { display: grid; gap: 12px; max-width: 540px; margin: 22px auto 18px; }
.bank-status .bank-line { margin-bottom: 10px; }

/* ---------- شاشة الاختبار ---------- */
.exam { min-height: 100vh; display: flex; flex-direction: column; background: #fff; }
.exam-top {
  position: sticky; top: 0; z-index: 5;
  background: var(--grey-100); border-bottom: 1px solid var(--grey-200);
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 10px 18px;
}
.exam-title { min-width: 0; }
.exam-prof { color: var(--green-dark); font-weight: 700; font-size: 1.15em; }
.exam-count { color: var(--grey-700); font-size: .95em; }
.exam-timer-wrap { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.exam-timer {
  color: var(--red); font-weight: 700; font-size: 1.35em;
  direction: ltr; unicode-bidi: isolate; font-variant-numeric: tabular-nums;
  min-width: 4.5ch; text-align: center;
}
.exam-body { flex: 1; width: 100%; max-width: 920px; margin: 0 auto; padding: 22px 18px 26px; }
.q-text { color: var(--green-dark); font-weight: 700; font-size: 1.15em; margin: 0 0 14px; }
.q-text.small { font-size: 1.02em; }
.q-fig { width: 220px; max-width: 70vw; margin: 0 auto 20px; }

.opts { display: flex; flex-direction: column; gap: 12px; }
.opt {
  display: flex; align-items: center; gap: 14px; width: 100%; text-align: start;
  background: #fff; border: 1.5px solid var(--grey-300); border-radius: var(--radius);
  padding: 13px 16px; color: var(--text); line-height: 1.5;
  transition: background .15s, border-color .15s, box-shadow .15s;
}
.opt:hover:not([disabled]) { border-color: var(--grey-500); }
.opt .letter {
  flex: 0 0 auto; width: 36px; height: 36px; border-radius: 9px;
  background: var(--grey-100); border: 1px solid var(--grey-300);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; direction: ltr; font-family: "Segoe UI", Arial, sans-serif;
}
.opt .opt-text { flex: 1 1 auto; }
.opt.selected { border-color: var(--green); background: var(--green-soft); box-shadow: inset 0 0 0 1px var(--green); }
.opt.selected .letter { background: var(--green); color: #fff; border-color: var(--green); }
.opt.correct { border-color: var(--green); background: var(--green-soft); box-shadow: inset 0 0 0 1px var(--green); }
.opt.correct .letter { background: var(--green); color: #fff; border-color: var(--green); }
.opt.wrong { border-color: var(--red); background: var(--red-soft); box-shadow: inset 0 0 0 1px var(--red); }
.opt.wrong .letter { background: var(--red); color: #fff; border-color: var(--red); }
.opt[disabled] { cursor: default; }
.opt .mark { flex: 0 0 auto; font-weight: 700; }
.opt.correct .mark { color: var(--green-dark); }
.opt.wrong .mark { color: var(--red); }

.exam-bottom {
  position: sticky; bottom: 0; z-index: 5;
  background: #fff; border-top: 1px solid var(--grey-200);
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px 18px;
}
.exam-bottom .btn { min-width: 130px; }

/* صيغة صح/خطأ */
.claim {
  border: 1.5px dashed var(--grey-300); background: var(--grey-50); border-radius: var(--radius);
  padding: 12px 14px; margin: 0 0 14px;
}
.claim-label { display: block; font-size: .85em; color: var(--grey-500); margin-bottom: 4px; }
.claim-text { font-weight: 600; line-height: 1.6; }
.claim-q { margin-top: 8px; color: var(--green-dark); font-weight: 700; }
.opts.tf { flex-direction: row; gap: 14px; }
.opts.tf .opt { flex: 1 1 0; justify-content: center; font-weight: 700; font-size: 1.1em; padding: 18px 16px; }
.opts.tf .opt .opt-text { flex: 0 0 auto; }
.opts.tf .opt .letter { font-size: 1.1em; }
.format-switch { display: flex; justify-content: center; align-items: center; gap: 10px; margin: 2px auto 14px; flex-wrap: wrap; }
.format-switch .lbl { color: var(--grey-500); font-size: .95em; }
.badge-fmt {
  display: inline-block; font-size: .85em; padding: 1px 10px; border-radius: 999px;
  background: var(--green-soft); border: 1px solid var(--green-border); color: var(--green-dark);
}

.feedback { border-radius: var(--radius); padding: 12px 14px; margin-top: 16px; border: 1px solid; }
.feedback .ans-line { margin-top: 6px; }
.feedback.ok { background: var(--green-soft); border-color: var(--green-border); }
.feedback.bad { background: var(--red-soft); border-color: var(--red-border); }
.feedback .fb-title { font-weight: 700; margin-bottom: 4px; }
.feedback.ok .fb-title { color: var(--green-dark); }
.feedback.bad .fb-title { color: var(--red); }
.feedback .exp { margin-top: 8px; }

/* ---------- النتيجة ---------- */
.score-wrap { text-align: center; padding: 6px 0 4px; }
.score-pct { font-size: 3.2em; font-weight: 800; line-height: 1.1; direction: ltr; unicode-bidi: isolate; }
.score-pct.pass { color: var(--green-dark); }
.score-pct.fail { color: var(--red); }
.badge { display: inline-block; border-radius: 999px; padding: 4px 18px; font-weight: 700; margin: 6px 0 10px; }
.badge.pass { background: var(--green-soft); color: var(--green-dark); border: 1px solid var(--green-border); }
.badge.fail { background: var(--red-soft); color: var(--red); border: 1px solid var(--red-border); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 12px 0 6px; }
.stat { background: var(--grey-100); border-radius: 10px; padding: 10px; text-align: center; }
.stat b { display: block; font-size: 1.5em; direction: ltr; unicode-bidi: isolate; }
.stat.ok b { color: var(--green-dark); }
.stat.bad b { color: var(--red); }
.stat.na b { color: var(--grey-500); }

.axis-row { display: grid; grid-template-columns: minmax(150px, 1.2fr) 3fr auto; gap: 12px; align-items: center; margin: 9px 0; }
.axis-row .axis-name { font-size: .95em; }
.bar { height: 12px; background: var(--grey-200); border-radius: 999px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--green); border-radius: 999px; transition: width .4s; }
.bar > i.mid { background: var(--amber); }
.bar > i.low { background: var(--red); }

.wrong-item { position: relative; }
.wrong-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.wrong-no {
  width: 30px; height: 30px; border-radius: 50%; background: var(--red); color: #fff;
  display: inline-flex; align-items: center; justify-content: center; font-weight: 700;
}
.axis-tag { font-size: .85em; color: var(--grey-500); background: var(--grey-100); border-radius: 999px; padding: 2px 10px; }
.ans-line { margin: 4px 0; }
.ans-line b { display: inline-block; min-width: 1.4em; text-align: center; direction: ltr; }
.ans-ok { color: var(--green-dark); }
.ans-bad { color: var(--red); }
.exp { background: var(--amber-soft); border-radius: 10px; padding: 10px 12px; margin-top: 8px; font-size: .97em; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 14px 0; }
.actions .btn { flex: 1 1 200px; }

/* ---------- التدريب ---------- */
.form-row {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px 0; border-bottom: 1px solid var(--grey-100); flex-wrap: wrap;
}
.form-row:last-child { border-bottom: none; }
.form-row label, .form-row .lbl { font-weight: 600; }
.form-row .hint { display: block; font-weight: 400; color: var(--grey-500); font-size: .88em; }
input[type="number"], select {
  font: inherit; padding: 8px 10px; border: 1px solid var(--grey-300); border-radius: 8px;
  background: #fff; color: var(--text); min-width: 110px;
}
input[type="number"] { direction: ltr; text-align: center; width: 110px; }
select { max-width: 100%; }
input[type="checkbox"] { width: 22px; height: 22px; accent-color: var(--green-dark); cursor: pointer; }
.seg { display: inline-flex; border: 1px solid var(--grey-300); border-radius: 10px; overflow: hidden; }
.seg button { border: none; background: #fff; padding: 8px 16px; font-weight: 600; }
.seg button + button { border-inline-start: 1px solid var(--grey-300); }
.seg button.active { background: var(--green-dark); color: #fff; }

/* ---------- المراجعة ---------- */
.fig-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.fig-card {
  background: #fff; border: 1px solid var(--grey-200); border-radius: var(--radius);
  padding: 12px 10px; text-align: center; box-shadow: var(--shadow);
}
.fig-card .fig { width: 110px; margin: 0 auto 8px; }
.fig-card .fig-label { font-weight: 600; font-size: .95em; line-height: 1.4; }
.fig-card .fig-axis { font-size: .8em; color: var(--grey-500); margin-top: 2px; }

/* ---------- السجل ---------- */
.table-wrap { overflow-x: auto; }
table.hist { width: 100%; border-collapse: collapse; font-size: .93em; }
.hist th, .hist td { border-bottom: 1px solid var(--grey-200); padding: 8px 10px; text-align: center; white-space: nowrap; }
.hist th { background: var(--grey-100); font-weight: 700; }
.hist th.weak, .hist td.weak { background: var(--red-soft); }
.hist td.pass { color: var(--green-dark); font-weight: 700; }
.hist td.fail { color: var(--red); font-weight: 700; }
.hist td.date { direction: ltr; }

/* ---------- النوافذ والتنبيهات ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0, 0, 0, .45); z-index: 50;
  display: flex; align-items: center; justify-content: center; padding: 16px;
}
.modal {
  background: #fff; border-radius: 14px; max-width: 460px; width: 100%; padding: 20px 22px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .2);
}
.modal h3 { margin: 0 0 10px; color: var(--green-dark); font-size: 1.2em; }
.modal-body { line-height: 1.7; }
.modal-actions { display: flex; justify-content: flex-start; gap: 10px; margin-top: 18px; flex-wrap: wrap; }
.toast {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%);
  background: var(--grey-700); color: #fff; padding: 10px 20px; border-radius: 999px;
  z-index: 60; opacity: 0; pointer-events: none; transition: opacity .2s; max-width: 90vw; text-align: center;
}
.toast.show { opacity: 1; }

/* ---------- شاشات صغيرة ---------- */
@media (max-width: 600px) {
  .container { padding: 12px; }
  .exam-top { padding: 8px 12px; }
  .exam-prof { font-size: 1.02em; }
  .exam-count { font-size: .88em; }
  .exam-timer { font-size: 1.15em; }
  .exam-timer-wrap .btn { padding: 8px 14px; min-height: 40px; }
  .exam-body { padding: 16px 12px 20px; }
  .exam-bottom { padding: 10px 12px; }
  .exam-bottom .btn { min-width: 110px; }
  .q-fig { width: 180px; }
  .opt { padding: 11px 12px; gap: 10px; }
  .opt .letter { width: 32px; height: 32px; }
  .axis-row { grid-template-columns: minmax(110px, 1fr) 2fr auto; gap: 8px; }
  .home-hero h1 { font-size: 1.55em; }
  .score-pct { font-size: 2.6em; }
  .opts.tf { flex-direction: column; }
}