/* ============================================================
   ExamManagerModule CSS — Toast Host + بازطراحی کامل UserExamsPage (پیشوند exm-).
   ExamManagerPage و PracticeExamFormDialog همچنان استایل Inline خودشون رو دارن.
   ============================================================ */

.exm-toast-wrap { position: fixed; bottom: 24px; left: 24px; z-index: 1000; display: flex; flex-direction: column; gap: 8px; font-family: 'Vazirmatn', 'iransansweb', Tahoma, sans-serif; }
.exm-toast { background: #1a1a18; color: #fff; padding: 12px 16px; border-radius: 10px; font-size: 13px; font-weight: 500; cursor: pointer; max-width: 340px; }
.exm-toast-success { background: #16a34a; }
.exm-toast-error { background: #dc2626; }
.exm-toast-warning { background: #d97706; }
.exm-toast-info { background: #2563eb; }

/* ============================================================
   UserExamsPage — بازطراحی کامل (۱۶ اوت ۲۰۲۶)، پیشوند exm-.
   ============================================================ */

.exam-user {
  --exm-c-bg: #f5f5f3;
  --exm-c-surface: #ffffff;
  --exm-c-border: rgba(0,0,0,0.08);
  --exm-c-border-strong: rgba(0,0,0,0.14);
  --exm-c-text: #1a1a18;
  --exm-c-text-2: #5a5a56;
  --exm-c-text-3: #9a9994;
  --exm-c-accent: #2563eb;
  --exm-c-accent-bg: #eff6ff;
  --exm-c-accent-text: #1d4ed8;
  --exm-c-accent-border: #bfdbfe;
  --exm-c-success: #16a34a;
  --exm-c-success-bg: #f0fdf4;
  --exm-c-danger: #dc2626;
  --exm-c-danger-bg: #fef2f2;
  --exm-c-warning: #d97706;
  --exm-c-warning-bg: #fffbeb;
  --exm-radius-sm: 6px;
  --exm-radius: 10px;
  --exm-radius-lg: 14px;

  max-width: 980px; margin: 0 auto; padding: 16px;
  font-family: 'Vazirmatn', system-ui, sans-serif;
  color: var(--exm-c-text); font-size: 13px; line-height: 1.5;
}
.exam-user * { box-sizing: border-box; }

.exm-hero { background: linear-gradient(120deg, var(--exm-c-accent) 0%, #4f46e5 100%); border-radius: var(--exm-radius-lg); padding: 18px 22px; color: #fff; margin-bottom: 18px; }
.exm-hero-title { font-size: 15px; font-weight: 700; }
.exm-hero-sub { font-size: 11.5px; opacity: 0.85; margin-top: 3px; }

/* تب‌ها */
.exm-tabs { display: flex; gap: 6px; margin-bottom: 18px; background: var(--exm-c-bg); border-radius: var(--exm-radius); padding: 4px; }
.exm-tab-item { flex: 1; text-align: center; border: none; background: transparent; padding: 10px; border-radius: var(--exm-radius-sm); font-size: 12.5px; font-weight: 700; color: var(--exm-c-text-2); cursor: pointer; font-family: inherit; transition: background 0.15s ease, color 0.15s ease; }
.exm-tab-item.active { background: var(--exm-c-surface); color: var(--exm-c-accent-text); box-shadow: 0 1px 3px rgba(0,0,0,0.08); }

.exm-empty { text-align: center; padding: 3rem 1rem; color: var(--exm-c-text-3); font-size: 12.5px; }

/* بخش هر کتاب */
.exm-book-section { margin-bottom: 26px; }
.exm-book-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.exm-book-title { font-size: 13.5px; font-weight: 700; margin: 0; }
.exm-showmore-btn { border: 1px solid var(--exm-c-border-strong); background: var(--exm-c-surface); color: var(--exm-c-accent-text); border-radius: var(--exm-radius-sm); padding: 6px 12px; font-size: 11.5px; font-weight: 600; cursor: pointer; font-family: inherit; }
.exm-showmore-btn:hover { background: var(--exm-c-accent-bg); }

.exm-cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
.exm-card {
  background: var(--exm-c-surface); border: 1px solid var(--exm-c-border); border-radius: var(--exm-radius-lg);
  overflow: hidden; transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.exm-card:hover { transform: translateY(-3px); box-shadow: 0 8px 20px rgba(37,99,235,0.12); border-color: var(--exm-c-accent-border); }
.exm-card.blinking { animation: exmBlink 1.2s ease infinite; }
@keyframes exmBlink { 0%, 100% { border-color: var(--exm-c-border); } 50% { border-color: var(--exm-c-danger); box-shadow: 0 0 0 3px rgba(220,38,38,0.15); } }
.exm-card-img { width: 100%; height: 90px; object-fit: cover; background: var(--exm-c-bg); }
.exm-card-body { padding: 10px; }
.exm-card-title { font-size: 12px; font-weight: 700; margin-bottom: 6px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.exm-card-info { font-size: 10.5px; color: var(--exm-c-text-2); margin-bottom: 3px; }
.exm-card-countdown { font-size: 10.5px; font-weight: 700; color: var(--exm-c-danger); margin-top: 6px; }
.exm-card-actions { display: flex; gap: 6px; margin-top: 8px; }

.exm-btn { display: inline-flex; align-items: center; justify-content: center; gap: 5px; flex: 1; border: 1px solid var(--exm-c-border-strong); background: var(--exm-c-surface); color: var(--exm-c-text); border-radius: var(--exm-radius-sm); padding: 7px 10px; font-size: 11.5px; font-weight: 700; cursor: pointer; font-family: inherit; text-decoration: none; }
.exm-btn:hover { background: var(--exm-c-bg); }
.exm-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.exm-btn-primary { background: var(--exm-c-accent); border-color: var(--exm-c-accent); color: #fff; }
.exm-btn-primary:hover { background: var(--exm-c-accent-text); }
.exm-btn-secondary { background: var(--exm-c-accent-bg); border-color: var(--exm-c-accent-border); color: var(--exm-c-accent-text); }

/* تاریخچه */
.exm-history-card { background: var(--exm-c-surface); border: 1px solid var(--exm-c-border); border-radius: var(--exm-radius-lg); padding: 14px 16px; margin-bottom: 12px; }
.exm-rank-banner { margin-top: 10px; font-weight: 700; color: var(--exm-c-accent-text); background: var(--exm-c-accent-bg); border-radius: var(--exm-radius-sm); padding: 8px 12px; font-size: 12px; }

/* ── فرم آزمون (تمام‌صفحه) ── */
.exm-form-overlay { position: fixed; inset: 0; background: var(--exm-c-bg); z-index: 2000; overflow-y: auto; padding: 16px; }
.exm-timer { text-align: center; background: var(--exm-c-warning-bg); color: #92400e; border-radius: var(--exm-radius); padding: 10px; font-weight: 700; font-size: 13px; margin-bottom: 14px; max-width: 980px; margin-inline: auto; }
.exm-stats-row { display: flex; gap: 10px; max-width: 980px; margin: 0 auto 16px; }
.exm-stat-card { flex: 1; text-align: center; border-radius: var(--exm-radius); padding: 12px; }
.exm-stat-answered { background: var(--exm-c-success-bg); color: #15803d; }
.exm-stat-unanswered { background: var(--exm-c-danger-bg); color: #b91c1c; }
.exm-stat-number { display: block; font-size: 18px; font-weight: 700; }
.exm-stat-label { font-size: 10.5px; }

.exm-questions-wrap { max-width: 980px; margin: 0 auto; display: flex; flex-wrap: wrap; gap: 12px; padding-bottom: 10px; }
.exm-question-card { min-width: 250px; flex: 1 1 300px; border: 1px solid var(--exm-c-border); border-radius: var(--exm-radius); padding: 12px; background: var(--exm-c-surface); }
.exm-question-card.flagged { background: #fff7db; border-color: #fde68a; }
.exm-mc-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.exm-option-label { display: flex; align-items: center; cursor: pointer; gap: 6px; }
.exm-option-circle {
  width: 28px; height: 28px; border: 2px solid var(--exm-c-accent); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-weight: 700; transition: all 0.2s ease;
}
.exm-option-circle.selected { background: var(--exm-c-accent); color: #fff; }
.exm-option-circle:not(.selected) { color: var(--exm-c-accent); }
.exm-flag-btn { border: none; background: transparent; cursor: pointer; font-size: 15px; margin-inline-start: auto; }
.exm-essay-textarea { width: 100%; border-radius: var(--exm-radius-sm); padding: 8px; border: 1px solid var(--exm-c-border-strong); font-family: inherit; font-size: 12.5px; resize: vertical; }

.exm-nav-actions { max-width: 980px; margin: 15px auto 0; display: flex; gap: 10px; flex-wrap: wrap; }
.exm-nav-actions .exm-btn { flex: 1; }
.exm-nav-actions .exm-btn-submit { flex: 2; }

.exm-viewmode-tabs { position: sticky; bottom: 0; max-width: 980px; margin: 20px auto 0; display: flex; gap: 6px; background: var(--exm-c-bg); border-radius: var(--exm-radius); padding: 4px; }
.exm-viewmode-tabs button { flex: 1; border: none; background: transparent; padding: 9px; border-radius: var(--exm-radius-sm); font-size: 11.5px; font-weight: 700; color: var(--exm-c-text-2); cursor: pointer; font-family: inherit; }
.exm-viewmode-tabs button.active { background: var(--exm-c-surface); color: var(--exm-c-accent-text); box-shadow: 0 1px 3px rgba(0,0,0,0.08); }

.exm-pdf-frame { width: 100%; height: 70vh; border: none; border-radius: var(--exm-radius); }

/* ── نمای «مشاهده همه»ی یه کتاب ── */
.exm-fullscreen-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.exm-back-btn { border: 1px solid var(--exm-c-border-strong); background: var(--exm-c-surface); color: var(--exm-c-text); border-radius: var(--exm-radius-sm); padding: 0 14px; height: 34px; font-size: 12px; font-weight: 600; cursor: pointer; font-family: inherit; }
.exm-back-btn:hover { background: var(--exm-c-bg); }

/* ============================================================
   ExamManagerPage (پنل ادمین) — بازطراحی کامل بدون Radzen (۲۰ اوت ۲۰۲۶)
   قبلاً این صفحه یه بلوک <style> داخلی (۲۲۵ خط، رنگ‌های ad-hoc مثل azure/blueviolet،
   فونت iransansweb بدون @font-face واقعی) داشت و از ۲ کامپوننت RadzenDropDown استفاده
   می‌کرد — یعنی هیچ‌وقت واقعاً «بلوغ» بقیه‌ی ماژول‌ها (بدون Radzen، توکن‌های طراحی
   یکدست، Skeleton/EmptyState/Toolbar) رو نگرفته بود، فقط فیزیکی جابه‌جا و باگ‌هاش
   رفع شده بود. همون متغیرهای --exm-c-* بالا (که exam-user/UserExamsPage استفاده
   می‌کنه) اینجا هم تعریف می‌شن تا رنگ ادمین/دانش‌آموز کاملاً یکدست باشه.
   ============================================================ */

.exam-manager {
  --exm-c-bg: #f5f5f3;
  --exm-c-surface: #ffffff;
  --exm-c-border: rgba(0,0,0,0.08);
  --exm-c-border-strong: rgba(0,0,0,0.14);
  --exm-c-text: #1a1a18;
  --exm-c-text-2: #5a5a56;
  --exm-c-text-3: #9a9994;
  --exm-c-accent: #2563eb;
  --exm-c-accent-bg: #eff6ff;
  --exm-c-accent-text: #1d4ed8;
  --exm-c-accent-border: #bfdbfe;
  --exm-c-success: #16a34a;
  --exm-c-success-bg: #f0fdf4;
  --exm-c-danger: #dc2626;
  --exm-c-danger-bg: #fef2f2;
  --exm-c-warning: #d97706;
  --exm-c-warning-bg: #fffbeb;
  --exm-radius-sm: 6px;
  --exm-radius: 10px;
  --exm-radius-lg: 14px;

  max-width: 1200px; margin: 20px auto; padding: 0 16px 40px;
  font-family: 'Vazirmatn', system-ui, sans-serif;
  color: var(--exm-c-text); font-size: 13px; line-height: 1.5;
}
.exam-manager * { box-sizing: border-box; }

.exam-manager h2.exm-page-title { font-size: 16px; font-weight: 700; margin-bottom: 14px; }

/* ── نوار آماری بالای صفحه ── */
.exm-admin-stats { display: flex; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.exm-admin-stat { flex: 1; min-width: 140px; background: var(--exm-c-surface); border: 1px solid var(--exm-c-border); border-radius: var(--exm-radius-lg); padding: 12px 16px; }
.exm-admin-stat-num { display: block; font-size: 20px; font-weight: 700; color: var(--exm-c-accent-text); }
.exm-admin-stat-label { font-size: 11px; color: var(--exm-c-text-3); }

.exam-manager .grid { display: grid; grid-template-columns: 1fr 2fr; gap: 16px; }
@media (max-width: 1100px) { .exam-manager .grid { grid-template-columns: 1fr; } }

.exam-manager .card { background: var(--exm-c-surface); border: 1px solid var(--exm-c-border); border-radius: var(--exm-radius-lg); padding: 16px; }
.exam-manager h3 { margin: 0 0 12px; font-size: 14px; font-weight: 700; }
.exam-manager h4 { margin: 12px 0 8px; font-size: 12.5px; font-weight: 700; color: var(--exm-c-text-2); }

.exam-manager .row { display: flex; align-items: center; gap: 8px; }
.exam-manager .row.wrap { flex-wrap: wrap; }

.exam-manager .input, .exam-manager select.input {
  flex: 1; border: 1px solid var(--exm-c-border-strong); border-radius: var(--exm-radius-sm);
  padding: 8px 10px; min-width: 140px; font-family: inherit; font-size: 12.5px;
  background: var(--exm-c-surface); color: var(--exm-c-text);
}
.exam-manager .input:focus, .exam-manager select.input:focus { outline: none; border-color: var(--exm-c-accent); }
.exam-manager .input.small { max-width: 140px; }

.exam-manager .btn {
  background: var(--exm-c-accent-bg); border: 1px solid var(--exm-c-accent-border); color: var(--exm-c-accent-text);
  border-radius: var(--exm-radius-sm); padding: 7px 14px; cursor: pointer; font-family: inherit; font-size: 12.5px; font-weight: 600;
  transition: background 0.15s ease;
}
.exam-manager .btn:hover { background: var(--exm-c-accent-border); }
.exam-manager .btn.primary { background: var(--exm-c-accent); border-color: var(--exm-c-accent); color: #fff; }
.exam-manager .btn.primary:hover { background: var(--exm-c-accent-text); }
.exam-manager .btn.danger { background: var(--exm-c-danger-bg); border-color: #fecaca; color: #b91c1c; }
.exam-manager .btn.danger:hover { background: #fecaca; }
.exam-manager .btn.xs { padding: 3px 8px; border-radius: var(--exm-radius-sm); font-size: 11px; }

/* ── Toolbar جست‌وجوی دسته‌ها ── */
.exm-admin-toolbar { position: relative; margin-bottom: 10px; }
.exm-admin-toolbar input { width: 100%; height: 34px; border-radius: var(--exm-radius-sm); border: 1px solid var(--exm-c-border-strong); background: var(--exm-c-bg); padding: 0 32px 0 10px; font-family: inherit; font-size: 12px; }
.exm-admin-toolbar input:focus { outline: none; border-color: var(--exm-c-accent); background: var(--exm-c-surface); }
.exm-admin-toolbar .ti-search { position: absolute; top: 50%; right: 10px; transform: translateY(-50%); color: var(--exm-c-text-3); font-size: 13px; pointer-events: none; }

.exam-manager .list { list-style: none; padding: 0; margin: 10px 0 0; display: grid; gap: 6px; }
.exam-manager .list-item {
  display: grid; grid-template-columns: 1fr auto auto; gap: 8px; align-items: center;
  border: 1px solid var(--exm-c-border); border-radius: var(--exm-radius); padding: 9px 10px; cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.exam-manager .list-item:hover { background: var(--exm-c-bg); }
.exam-manager .list-item.active { border-color: var(--exm-c-accent); background: var(--exm-c-accent-bg); }
.exam-manager .title { font-weight: 700; font-size: 12.5px; }
.exam-manager .meta { display: flex; gap: 10px; color: var(--exm-c-text-3); font-size: 11px; }

.exam-manager .chips { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.exam-manager .chip { background: var(--exm-c-bg); border-radius: 999px; padding: 5px 10px; display: inline-flex; gap: 6px; align-items: center; font-size: 11.5px; }
.exam-manager .chip-btn { border: none; background: transparent; cursor: pointer; font-size: 15px; line-height: 1; color: var(--exm-c-text-3); }
.exam-manager .chip-btn:hover { color: var(--exm-c-danger); }

.exam-manager .table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 11.5px; }
.exam-manager .table th, .exam-manager .table td { border-bottom: 1px solid var(--exm-c-border); padding: 8px; text-align: center; }
.exam-manager .table th { color: var(--exm-c-text-2); font-weight: 700; background: var(--exm-c-bg); }

.exam-manager .muted { color: var(--exm-c-text-3); font-size: 12.5px; }
.exam-manager .warn { margin-top: 6px; color: #92400e; background: var(--exm-c-warning-bg); border: 1px solid #fde68a; padding: 6px 10px; border-radius: var(--exm-radius-sm); display: inline-block; font-size: 11.5px; }
.exam-manager .hint { margin-top: 8px; color: var(--exm-c-text-2); font-size: 11.5px; }

.exam-manager .multiple-choice-answers { margin-top: 10px; border: 1px solid var(--exm-c-border); border-radius: var(--exm-radius); padding: 12px; background: var(--exm-c-bg); }

.exam-manager .cover-image-preview { width: 120px; height: 160px; object-fit: cover; border-radius: var(--exm-radius-sm); margin-bottom: 8px; border: 1px solid var(--exm-c-border-strong); }

.exam-manager .spansort {
  background: var(--exm-c-accent); color: #fff; display: inline-flex; width: 26px; height: 26px;
  justify-content: center; align-items: center; border-radius: 50%; margin-inline-end: 8px; font-size: 11.5px; font-weight: 700;
}
.exam-manager .segmentexam { width: 100%; margin-top: 10px; background: var(--exm-c-bg); border-radius: var(--exm-radius); padding: 14px; border: 1px solid var(--exm-c-border); }
.exam-manager .titlesegmentexam { display: inline; margin: 0; font-weight: 700; font-size: 12.5px; color: var(--exm-c-text); }

/* ── EmptyState (به‌جای متن ساده‌ی «هیچ دسته‌ای انتخاب نشده») ── */
.exm-empty-state { text-align: center; padding: 2.5rem 1rem; color: var(--exm-c-text-3); }
.exm-empty-state .ti { font-size: 30px; margin-bottom: 8px; display: block; color: var(--exm-c-border-strong); }
.exm-empty-state-title { font-size: 12.5px; font-weight: 600; color: var(--exm-c-text-2); }
.exm-empty-state-sub { font-size: 11px; margin-top: 4px; }

/* ── Skeleton بارگذاری اولیه‌ی صفحه‌ی ادمین ── */
.exm-admin-skeleton-row { height: 16px; border-radius: 6px; margin-bottom: 10px; background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 37%, #f1f5f9 63%); background-size: 400% 100%; animation: exmSkeletonPulse 1.4s ease infinite; }
.exm-admin-skeleton-card { height: 140px; border-radius: var(--exm-radius-lg); background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 37%, #f1f5f9 63%); background-size: 400% 100%; animation: exmSkeletonPulse 1.4s ease infinite; }
.exm-skeleton { padding: 4px; }
.exm-skeleton-tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.exm-skeleton-tab { flex: 1; height: 42px; border-radius: 10px; }
.exm-skeleton-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
.exm-skeleton-card { height: 220px; border-radius: 14px; }
.exm-skeleton-tab, .exm-skeleton-card {
  background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 37%, #f1f5f9 63%);
  background-size: 400% 100%;
  animation: exmSkeletonPulse 1.4s ease infinite;
}
@keyframes exmSkeletonPulse { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }

/* ── اتصال به مخزن سوالات (۲۷ اوت ۲۰۲۶) ── */
.qbank-toggle-row {
  display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: 13px; font-weight: 600;
}
.qbank-toggle-row input[type="checkbox"] { width: 17px; height: 17px; flex-shrink: 0; }
.qbank-hint-box {
  display: flex; align-items: flex-start; gap: 8px; margin-top: 10px; font-size: 11.5px; line-height: 1.8;
  background: var(--exm-c-accent-bg); color: var(--exm-c-accent-text);
  border: 1px solid var(--exm-c-accent-border); border-radius: var(--exm-radius-sm);
  padding: 10px 14px;
}
.qbank-hint-box .ti { font-size: 15px; flex-shrink: 0; margin-top: 2px; }

/* ── نمایش متن واقعیِ سوال/گزینه‌ها برای آزمون‌های مخزن‌محور (۲۷ اوت ۲۰۲۶) ── */
.exm-bank-options { display: flex; flex-direction: column; gap: 8px; }
.exm-bank-option-label {
  display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: 13px;
  border: 1px solid var(--exm-c-border-strong); border-radius: var(--exm-radius-sm); padding: 9px 12px;
  transition: border-color .15s ease, background .15s ease;
}
.exm-bank-option-label:hover { border-color: var(--exm-c-accent); }
.exm-bank-option-label.selected { border-color: var(--exm-c-accent); background: var(--exm-c-accent-bg); }
.exm-bank-option-label input[type="radio"] { display: none; }
.exm-bank-option-label .exm-option-circle { flex-shrink: 0; width: 24px; height: 24px; font-size: 12px; }