/* ============================================================
   QuestionForumModule CSS — استخراج‌شده از یک بلوک <style> درون‌خطی ۵۰۳ خطی
   در AskQuestionPage.razor (۲۴ اوت ۲۰۲۶، طبق درخواست کاربر برای ارتقای ماژول
   به بالغ‌ترین حالت با بهترین UI/UX). همون کلاس‌ها، فقط:
   - به فایل CSS مجزا منتقل شد (نه تکرار در هر Render صفحه)
   - فونت به Vazirmatn (فونت پیش‌فرض کل سایت) تغییر کرد
   - رنگ‌های پرتکرار به توکن‌های CSS (--qf-c-*) تبدیل شدن
   ============================================================ */

.qa-container {
  --qf-c-bg: #f5f5f3;
  --qf-c-surface: #ffffff;
  --qf-c-border: #e2e8f0;
  --qf-c-text: #1e293b;
  --qf-c-text-2: #475569;
  --qf-c-text-3: #64748b;
  --qf-c-text-4: #94a3b8;
  --qf-c-accent: #2563eb;
  --qf-c-accent-2: #1d4ed8;
  --qf-c-accent-bg: #eff6ff;
  --qf-radius-sm: 8px;
  --qf-radius: 12px;
  --qf-radius-lg: 20px;

  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
  font-family: 'Vazirmatn', 'iransansweb', Tahoma, sans-serif;
  background: linear-gradient(135deg, var(--qf-c-accent-bg) 0%, #fff 100%);
  min-height: 100vh;
}

.qa-container .header-section { background: var(--qf-c-surface); border-radius: var(--qf-radius-lg); padding: 2rem; margin-bottom: 2rem; box-shadow: 0 10px 40px rgba(0,0,0,0.1); }
.qa-container .page-title { font-size: 1.1rem; font-weight: 800; display: flex; align-items: center; justify-content: center; gap: 8px; color: var(--qf-c-accent-2); text-align: center; margin-bottom: 0.5rem; }
.qa-container .page-subtitle { text-align: center; color: var(--qf-c-text-3); font-size: 0.95rem; }

/* Stats Cards */
.qa-container .stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-top: 1.5rem; }
.qa-container .stat-card { background: linear-gradient(135deg, var(--qf-c-accent) 0%, var(--qf-c-accent-2) 100%); padding: 0.9rem 0.5rem; border-radius: 15px; color: white; text-align: center; transition: transform 0.3s ease; }
.qa-container .stat-card:hover { transform: translateY(-5px); }
.qa-container .stat-number { font-size: 1.7rem; font-weight: 800; display: block; margin-bottom: 0.3rem; }
.qa-container .stat-label { font-size: 0.78rem; opacity: 0.9; }

/* Form Container */
.qa-container .form-container { background: var(--qf-c-surface); border-radius: var(--qf-radius-lg); padding: 2rem; margin-bottom: 2rem; box-shadow: 0 10px 40px rgba(0,0,0,0.1); }
.qa-container .form-title { font-size: 1.2rem; font-weight: 700; color: var(--qf-c-text); margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.5rem; }
.qa-container .filter-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; margin-bottom: 1.5rem; }
.qa-container .form-group { display: flex; flex-direction: column; }
.qa-container .form-label { font-weight: 600; margin-bottom: 0.5rem; color: #334155; font-size: 0.9rem; display: flex; align-items: center; gap: 0.5rem; }
.qa-container .form-control {
  width: 100%; padding: 0.75rem 1rem; font-size: 0.95rem; border-radius: var(--qf-radius);
  border: 2px solid var(--qf-c-border); transition: all 0.3s ease; font-family: inherit;
}
.qa-container .form-control:focus { outline: none; border-color: var(--qf-c-accent); box-shadow: 0 0 0 3px rgba(37,99,235,0.12); }
.qa-container .form-control:disabled { background: #f1f5f9; cursor: not-allowed; }
.qa-container textarea.form-control { min-height: 150px; resize: vertical; }

/* File Upload (legacy simple list — kept for any fallback usage) */
.qa-container .file-upload-area { border: 2px dashed #cbd5e1; border-radius: var(--qf-radius); padding: 2rem; text-align: center; transition: all 0.3s ease; cursor: pointer; background: var(--qf-c-bg); }
.qa-container .file-upload-area:hover { border-color: var(--qf-c-accent); background: #f1f5f9; }
.qa-container .file-upload-area.drag-over { border-color: var(--qf-c-accent); background: var(--qf-c-accent-bg); }
.qa-container .file-list { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1rem; }
.qa-container .file-item { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem 1rem; background: #f1f5f9; border-radius: var(--qf-radius-sm); font-size: 0.85rem; }
.qa-container .file-item-remove { background: #ef4444; color: white; border: none; border-radius: 50%; width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 1rem; line-height: 1; }

/* Submit Button */
.qa-container .btn-submit {
  width: 100%; padding: 1rem 2rem; font-size: 1.05rem; font-weight: 700; color: white;
  background: linear-gradient(135deg, var(--qf-c-accent) 0%, var(--qf-c-accent-2) 100%);
  border: none; border-radius: var(--qf-radius); cursor: pointer; transition: all 0.3s ease;
  margin-top: 1.5rem; font-family: inherit; display: flex; align-items: center; justify-content: center; gap: 8px;
}
.qa-container .btn-submit:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 10px 25px rgba(37,99,235,0.35); }
.qa-container .btn-submit:disabled { opacity: 0.5; cursor: not-allowed; }

/* Questions List */
.qa-container .questions-container { background: var(--qf-c-surface); border-radius: var(--qf-radius-lg); padding: 1rem; box-shadow: 0 10px 40px rgba(0,0,0,0.1); }
.qa-container .questions-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; flex-wrap: wrap; gap: 1rem; }
.qa-container .questions-title { font-size: 1rem; font-weight: 700; color: var(--qf-c-text); }
.qa-container .filter-tabs { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.qa-container .filter-tab { padding: 0.5rem 0.9rem; border: 2px solid var(--qf-c-border); border-radius: var(--qf-radius-sm); background: white; cursor: pointer; transition: all 0.3s ease; font-size: 0.85rem; font-family: inherit; display: inline-flex; align-items: center; gap: 5px; }
.qa-container .filter-tab:hover { border-color: var(--qf-c-accent); }
.qa-container .filter-tab.active { background: linear-gradient(135deg, var(--qf-c-accent) 0%, var(--qf-c-accent-2) 100%); color: white; border-color: transparent; }

.qa-container .questions-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 1.5rem; }
.qa-container .question-card { background: var(--qf-c-surface); border: 2px solid var(--qf-c-border); border-radius: 15px; padding: 1.5rem; transition: all 0.3s ease; cursor: pointer; }
.qa-container .question-card:hover { border-color: var(--qf-c-accent); box-shadow: 0 10px 30px rgba(37,99,235,0.13); transform: translateY(-3px); }
.qa-container .question-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 1rem; }
.qa-container .question-meta { font-size: 0.75rem; color: var(--qf-c-text-3); }
.qa-container .question-status { padding: 0.25rem 0.75rem; border-radius: 20px; font-size: 0.75rem; font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.qa-container .status-pending { background: #fef3c7; color: #92400e; }
.qa-container .status-answered { background: #d1fae5; color: #065f46; }
.qa-container .status-resolved { background: var(--qf-c-accent-bg); color: var(--qf-c-accent-2); }
.qa-container .question-title { font-size: 0.9rem; font-weight: 600; color: var(--qf-c-text); margin-bottom: 0.75rem; }
.qa-container .question-text { font-size: 0.87rem; color: var(--qf-c-text-2); line-height: 1.6; margin-bottom: 1rem; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.qa-container .question-footer { display: flex; justify-content: space-between; align-items: center; padding-top: 1rem; border-top: 1px solid var(--qf-c-border); }
.qa-container .question-stats { display: flex; gap: 1rem; font-size: 0.82rem; color: var(--qf-c-text-3); }
.qa-container .stat-item { display: flex; align-items: center; gap: 0.3rem; }

/* Notifications */
.qa-container .notification-badge { position: fixed; top: 20px; right: 20px; background: #ef4444; color: white; border-radius: 50%; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; font-weight: 700; cursor: pointer; box-shadow: 0 4px 15px rgba(239,68,68,0.4); transition: transform 0.3s ease; z-index: 1000; }
.qa-container .notification-badge:hover { transform: scale(1.1); }
.qa-container .toast-notification { position: fixed; top: 80px; left: 50%; transform: translateX(-50%); background: var(--qf-c-surface); padding: 1rem 2rem; border-radius: var(--qf-radius); box-shadow: 0 10px 40px rgba(0,0,0,0.15); z-index: 1001; animation: qfSlideDown 0.3s ease; }
@keyframes qfSlideDown { from { opacity: 0; transform: translateX(-50%) translateY(-20px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }

.qa-container .loading-spinner { display: inline-block; width: 20px; height: 20px; border: 3px solid rgba(255,255,255,0.3); border-radius: 50%; border-top-color: white; animation: qfSpin 0.6s linear infinite; }
@keyframes qfSpin { to { transform: rotate(360deg); } }

.qa-container .empty-state { text-align: center; padding: 3rem; color: var(--qf-c-text-4); }
.qa-container .empty-state-icon { font-size: 3rem; margin-bottom: 1rem; color: var(--qf-c-text-4); }

/* Skeleton بارگذاری */
.qa-container .qa-skeleton { display: flex; flex-direction: column; gap: 1.5rem; }
.qa-container .qa-skeleton-form { height: 220px; border-radius: var(--qf-radius-lg); }
.qa-container .qa-skeleton-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; }
.qa-container .qa-skeleton-card { height: 140px; border-radius: 16px; }
.qa-container .qa-skeleton-block { background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 37%, #f1f5f9 63%); background-size: 400% 100%; animation: qaSkeletonPulse 1.4s ease infinite; }
@keyframes qaSkeletonPulse { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }

/* پیوست فایل — Drag & Drop */
.qa-container .qa-dropzone { min-height: 130px; padding: 14px; }
.qa-container .qa-dropzone .ti-cloud-upload { font-size: 28px; }
.qa-container .qa-file-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px; margin-top: 12px; }
.qa-container .qa-file-chip { display: flex; align-items: center; gap: 8px; border: 1px solid var(--qf-c-border); border-radius: 10px; padding: 6px; background: var(--qf-c-bg); position: relative; }
.qa-container .qa-file-thumb { width: 40px; height: 40px; border-radius: 7px; object-fit: cover; flex-shrink: 0; background: #fff; }
.qa-container .qa-file-thumb-icon { display: flex; align-items: center; justify-content: center; color: #dc2626; font-size: 18px; border: 1px solid var(--qf-c-border); }
.qa-container .qa-file-info { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.qa-container .qa-file-name { font-size: 11.5px; font-weight: 600; color: #334155; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qa-container .qa-file-size { font-size: 10px; color: var(--qf-c-text-4); }
.qa-container .qa-file-remove { width: 20px; height: 20px; border-radius: 50%; border: none; background: #fee2e2; color: #b91c1c; display: flex; align-items: center; justify-content: center; cursor: pointer; flex-shrink: 0; font-size: 11px; }
.qa-container .qa-file-remove:hover { background: #fecaca; }

.qa-container .qa-char-counter { text-align: left; font-size: 10.5px; color: var(--qf-c-text-4); margin-top: 4px; }
.qa-container .qa-char-counter.warn { color: #d97706; font-weight: 600; }

@media (max-width: 768px) {
  .qa-container { padding: 0.75rem; }
  .qa-container .filter-grid { grid-template-columns: 1fr; }
  .qa-container .questions-grid { grid-template-columns: 1fr; }
  .qa-container .stats-grid { grid-template-columns: repeat(2, 1fr); }
}