/* 🆕 (Update 31) بازطراحیِ «رفعِ اشکالِ درسی» — پیشوندِ qs-، فونتِ Vazirmatn در همه‌ی اجزا، رنگ‌هایِ هماهنگ با تضادِ استاندارد (WCAG AA) */
.qs { --qs-primary: #4f46e5; --qs-primary-2: #4338ca; --qs-primary-bg: #eef2ff; --qs-text: #0f172a; --qs-text-2: #475569; --qs-text-3: #64748b;
      --qs-surface: #ffffff; --qs-bg: #f8fafc; --qs-border: #e2e8f0; --qs-radius: 16px; --qs-danger: #b91c1c;
      max-width: 1040px; margin: 0 auto; padding: 16px 14px 96px; color: var(--qs-text); font-size: 14px; line-height: 1.9; }
.qs, .qs * , .qs input, .qs select, .qs textarea, .qs button { font-family: 'Vazirmatn', system-ui, -apple-system, 'Segoe UI', sans-serif !important; }
.qs .ti { font-family: 'tabler-icons' !important; }

.qs-hero { background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%); color: #fff; border-radius: 22px; padding: 22px 20px; display: flex; gap: 16px; justify-content: space-between; align-items: center; flex-wrap: wrap; box-shadow: 0 14px 34px rgba(79,70,229,.25); margin-bottom: 16px; }
.qs-hero h1 { margin: 0 0 4px; font-size: 21px; font-weight: 800; display: flex; align-items: center; gap: 8px; color: #fff; }
.qs-hero p { margin: 0; font-size: 13.5px; color: rgba(255,255,255,.9); max-width: 520px; }
.qs-kpis { display: grid; grid-template-columns: repeat(4, minmax(78px, 1fr)); gap: 8px; }
.qs-kpi { background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.22); border-radius: 14px; padding: 8px 10px; text-align: center; backdrop-filter: blur(6px); }
.qs-kpi .v { display: block; font-size: 20px; font-weight: 900; color: #fff; line-height: 1.3; }
.qs-kpi .l { display: block; font-size: 11px; color: rgba(255,255,255,.88); }

.qs-card { background: var(--qs-surface); border: 1px solid var(--qs-border); border-radius: var(--qs-radius); padding: 18px; margin-bottom: 16px; box-shadow: 0 4px 16px rgba(15,23,42,.04); }
.qs-card-title { margin: 0 0 12px; font-size: 16px; font-weight: 800; display: flex; gap: 8px; align-items: center; color: var(--qs-text); }
.qs-card-title .ti { color: var(--qs-primary); }
.qs-ai-note { display: flex; gap: 10px; align-items: flex-start; background: var(--qs-primary-bg); color: #3730a3; border: 1px solid #c7d2fe; border-radius: 12px; padding: 10px 12px; font-size: 13px; margin-bottom: 14px; }
.qs-ai-note .ti { font-size: 20px; margin-top: 2px; }

.qs-step { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 800; color: var(--qs-text); margin: 14px 0 8px; }
.qs-step > span { width: 24px; height: 24px; border-radius: 50%; background: var(--qs-primary); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 12.5px; }
.qs-step small { font-weight: 500; color: var(--qs-text-3); font-size: 12px; }
.qs-req { color: var(--qs-danger); font-weight: 800; }
.qs-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.qs-field { display: grid; gap: 6px; min-width: 0; }
.qs-field label { font-size: 13px; font-weight: 700; color: var(--qs-text-2); }
.qs-input { width: 100%; min-height: 44px; border: 1.5px solid var(--qs-border); border-radius: 12px; background: #fff; color: var(--qs-text); padding: 9px 12px; font-size: 14px; transition: border-color .15s, box-shadow .15s; box-sizing: border-box; }
.qs-input:focus { outline: none; border-color: var(--qs-primary); box-shadow: 0 0 0 4px rgba(79,70,229,.14); }
.qs-input:disabled { background: var(--qs-bg); color: var(--qs-text-3); cursor: not-allowed; }
.qs-textarea { min-height: 150px; resize: vertical; line-height: 2; font-size: 15px; }
.qs-help { font-size: 12px; color: var(--qs-text-3); }
.qs-help.warn { color: #b45309; }
.qs-editor .fte-bar { margin-top: 8px; }
.qs-editor .fte-add { font-size: 12.5px; border-radius: 10px; }

.qs-drop { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; text-align: center; padding: 18px; border: 2px dashed #c7d2fe; border-radius: 14px; background: #f8faff; cursor: pointer; transition: background .15s, border-color .15s; }
.qs-drop:hover, .qs-drop.over { background: var(--qs-primary-bg); border-color: var(--qs-primary); }
.qs-drop.full { opacity: .6; cursor: not-allowed; }
.qs-drop input[type=file] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.qs-drop .ti { font-size: 30px; color: var(--qs-primary); }
.qs-drop-title { font-weight: 700; font-size: 14px; color: var(--qs-text); }
.qs-drop-sub { font-size: 12px; color: var(--qs-text-3); }
.qs-files { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 8px; margin-top: 10px; }
.qs-file { display: flex; align-items: center; gap: 8px; border: 1px solid var(--qs-border); border-radius: 12px; padding: 6px; background: #fff; }
.qs-file img, .qs-file-icon { width: 48px; height: 48px; border-radius: 9px; object-fit: cover; flex: none; }
.qs-file-icon { display: flex; align-items: center; justify-content: center; background: #fef2f2; color: #b91c1c; font-size: 24px; }
.qs-file-meta { flex: 1; min-width: 0; display: grid; }
.qs-file-meta .n { font-size: 12.5px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qs-file-meta .s { font-size: 11px; color: var(--qs-text-3); }
.qs-file-x { width: 32px; height: 32px; border-radius: 9px; border: none; background: #f1f5f9; color: var(--qs-text-2); cursor: pointer; }
.qs-file-x:hover { background: #fee2e2; color: #b91c1c; }

.qs-options { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; margin-top: 14px; }
.qs-seg { display: inline-flex; align-items: center; gap: 4px; background: var(--qs-bg); border: 1px solid var(--qs-border); border-radius: 12px; padding: 4px; }
.qs-seg-lbl { font-size: 12.5px; color: var(--qs-text-2); padding: 0 6px; font-weight: 700; }
.qs-seg button { border: none; background: transparent; border-radius: 9px; padding: 6px 14px; font-size: 13px; cursor: pointer; color: var(--qs-text-2); }
.qs-seg button.on { background: #fff; color: var(--qs-primary); font-weight: 800; box-shadow: 0 1px 3px rgba(15,23,42,.1); }
.qs-seg button.on.p-Urgent { color: #b91c1c; }
.qs-seg button.on.p-High { color: #b45309; }
.qs-switch-row { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--qs-text-2); cursor: pointer; }
.qs-switch { width: 42px; height: 24px; border-radius: 999px; border: none; background: #cbd5e1; position: relative; cursor: pointer; padding: 0; }
.qs-switch span { position: absolute; top: 3px; inset-inline-start: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; transition: inset-inline-start .15s; }
.qs-switch.on { background: var(--qs-primary); }
.qs-switch.on span { inset-inline-start: 21px; }

.qs-alert { margin-top: 12px; padding: 10px 12px; border-radius: 12px; background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; font-size: 13px; display: flex; gap: 8px; align-items: center; }
.qs-submit-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.qs-missing { font-size: 12.5px; color: var(--qs-text-3); }
.qs-submit { min-height: 48px; padding: 0 26px; border: none; border-radius: 14px; background: linear-gradient(135deg, #4f46e5, #7c3aed); color: #fff; font-size: 15px; font-weight: 800; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; box-shadow: 0 10px 22px rgba(79,70,229,.3); transition: transform .1s, opacity .15s; }
.qs-submit:active:not(:disabled) { transform: scale(.98); }
.qs-submit:disabled { opacity: .5; cursor: not-allowed; box-shadow: none; }
.qs-spin { animation: qs-spin 1s linear infinite; display: inline-block; }
@keyframes qs-spin { to { transform: rotate(360deg); } }

.qs-list-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.qs-list-head .qs-card-title { margin: 0; }
.qs-tabs { display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; }
.qs-tabs button { flex: none; border: 1px solid var(--qs-border); background: #fff; border-radius: 999px; padding: 6px 12px; font-size: 12.5px; color: var(--qs-text-2); cursor: pointer; display: inline-flex; gap: 6px; align-items: center; }
.qs-tabs button span { background: var(--qs-bg); border-radius: 999px; padding: 0 7px; font-size: 11px; }
.qs-tabs button.on { background: var(--qs-primary); border-color: var(--qs-primary); color: #fff; font-weight: 700; }
.qs-tabs button.on span { background: rgba(255,255,255,.22); }
.qs-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 10px; }
.qs-q { border: 1px solid var(--qs-border); border-radius: 14px; padding: 12px 14px; background: #fff; cursor: pointer; transition: border-color .15s, box-shadow .15s, transform .1s; display: grid; gap: 8px; }
.qs-q:hover, .qs-q:focus-visible { border-color: #a5b4fc; box-shadow: 0 8px 20px rgba(79,70,229,.1); outline: none; }
.qs-q-top { display: flex; gap: 8px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.qs-q-book { font-size: 12px; color: var(--qs-text-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 70%; }
.qs-q-text { font-size: 14px; color: var(--qs-text); line-height: 2; }
.qs-q-foot { display: flex; gap: 12px; flex-wrap: wrap; font-size: 12px; color: var(--qs-text-3); }
.qs-q-stats { margin-inline-start: auto; display: inline-flex; gap: 4px; align-items: center; }
.qs-status { font-size: 11.5px; font-weight: 800; border-radius: 999px; padding: 2px 10px; }
.qs-status.status-pending { background: #fef3c7; color: #92400e; }
.qs-status.status-answered { background: #dcfce7; color: #166534; }
.qs-status.status-resolved { background: #dbeafe; color: #1e40af; }
.qs-empty { text-align: center; color: var(--qs-text-3); padding: 30px; }
.qs-empty .ti { font-size: 40px; }
.qs-skel { display: grid; gap: 12px; }
.qs-skel div { height: 120px; border-radius: 16px; background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 37%, #f1f5f9 63%); background-size: 400% 100%; animation: qs-skel 1.3s ease infinite; }
@keyframes qs-skel { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }
.qs-toast { position: fixed; bottom: calc(84px + env(safe-area-inset-bottom, 0px)); left: 50%; transform: translateX(-50%); background: #065f46; color: #fff; padding: 10px 18px; border-radius: 14px; font-size: 13.5px; z-index: 1000; box-shadow: 0 10px 24px rgba(0,0,0,.2); display: flex; gap: 6px; align-items: center; }
.qs button:focus-visible, .qs select:focus-visible { outline: 3px solid rgba(79,70,229,.35); outline-offset: 2px; }

@media (max-width: 760px) {
    .qs-grid { grid-template-columns: 1fr; }
    .qs-kpis { grid-template-columns: repeat(4, 1fr); width: 100%; }
    .qs-hero { padding: 18px 16px; }
    .qs-hero h1 { font-size: 19px; }
    .qs-submit-bar { position: sticky; bottom: calc(64px + env(safe-area-inset-bottom, 0px)); background: rgba(255,255,255,.95); backdrop-filter: blur(8px); padding: 10px; margin: 12px -10px -10px; border-top: 1px solid var(--qs-border); border-radius: 0 0 16px 16px; z-index: 5; }
    .qs-submit { flex: 1; justify-content: center; }
    .qs-list { grid-template-columns: 1fr; }
    .qs-input, .qs-textarea { font-size: 16px; } /* جلوگیری از زوم خودکارِ iOS */
}
@media (prefers-reduced-motion: reduce) { .qs-spin, .qs-skel div { animation: none; } }