/**
 * استایل مستقلِ سیستم تیکتینگ — با متغیرهای اختصاصی (--sts-*) نوشته شده تا
 * روی هر قالب/پروژه‌ای بدون وابستگی به CSS اون سایت، حرفه‌ای و یکدست دیده بشه.
 * به‌صورت خودکار با تنظیم روشن/تیره‌ی سیستم کاربر هماهنگ می‌شه.
 */
.sts-wrap{
  --sts-blue:#4d7bff; --sts-violet:#8b5cf6; --sts-pink:#ec4899;
  --sts-grad:linear-gradient(120deg,var(--sts-blue) 0%,var(--sts-violet) 55%,var(--sts-pink) 100%);
  --sts-bg-card:#ffffff; --sts-border:#e5e7eb; --sts-text:#0f172a; --sts-text-dim:#64748b;
  --sts-input-bg:#f8fafc; --sts-shadow:0 10px 30px -12px rgba(15,23,42,.12);
  font-family:'Vazirmatn','Vazir',Tahoma,'Segoe UI',sans-serif;
  direction:rtl; text-align:right; color:var(--sts-text); line-height:1.85;
  max-width:640px; margin:0 auto; display:flex; flex-direction:column; gap:22px;
}
@media (prefers-color-scheme: dark){
  .sts-wrap{
    --sts-bg-card:#15131f; --sts-border:rgba(255,255,255,.10); --sts-text:#f4f2fa; --sts-text-dim:#a8a3bb;
    --sts-input-bg:rgba(255,255,255,.05); --sts-shadow:0 10px 34px -14px rgba(0,0,0,.5);
  }
}
.sts-wrap *{ box-sizing:border-box; }

.sts-card{
  background:var(--sts-bg-card); border:1px solid var(--sts-border); border-radius:20px;
  padding:26px 24px; box-shadow:var(--sts-shadow);
}
.sts-card h3{ font-size:1.08rem; font-weight:800; margin:0 0 18px; }
.sts-muted{ color:var(--sts-text-dim); font-size:.88rem; }

.sts-label{ display:block; font-size:.84rem; font-weight:700; margin:14px 0 6px; }
.sts-label:first-of-type{ margin-top:0; }
.sts-input{
  width:100%; background:var(--sts-input-bg); border:1px solid var(--sts-border); border-radius:12px;
  padding:11px 14px; font-family:inherit; font-size:.9rem; color:var(--sts-text);
  outline:none; transition:border-color .2s ease, background .2s ease;
}
.sts-input:focus{ border-color:var(--sts-violet); }
.sts-textarea{ resize:vertical; min-height:100px; }
select.sts-input{ cursor:pointer; }

.sts-btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:12px 26px; border-radius:100px; font-weight:700; font-size:.88rem;
  border:none; cursor:pointer; margin-top:18px; text-decoration:none;
  transition:transform .2s ease, box-shadow .2s ease;
}
.sts-btn-primary{ background:var(--sts-grad); color:#fff; box-shadow:0 14px 30px -12px rgba(139,92,246,.55); }
.sts-btn-primary:hover{ transform:translateY(-2px); }

.sts-notice{ padding:13px 18px; border-radius:14px; font-size:.86rem; font-weight:600; }
.sts-notice-success{ background:rgba(52,211,153,.12); color:#0f9d64; }
.sts-notice-error{ background:rgba(236,72,153,.12); color:#db2777; }

.sts-badge{ display:inline-block; padding:4px 12px; border-radius:100px; font-size:.72rem; font-weight:700; white-space:nowrap; }
.sts-badge-open{ background:rgba(77,123,255,.14); color:#3559d6; }
.sts-badge-answered{ background:rgba(52,211,153,.14); color:#0f9d64; }
.sts-badge-closed{ background:rgba(100,116,139,.14); color:var(--sts-text-dim); }

.sts-priority-dot{ width:8px; height:8px; border-radius:50%; display:inline-block; }
.sts-priority-low{ background:#94a3b8; }
.sts-priority-medium{ background:#f59e0b; }
.sts-priority-high{ background:#ef4444; }

.sts-list{ display:flex; flex-direction:column; gap:8px; }
.sts-list-item{
  display:flex; align-items:center; gap:12px; padding:13px 14px; border-radius:14px;
  border:1px solid var(--sts-border); text-decoration:none; color:var(--sts-text);
  transition:background .2s ease, border-color .2s ease;
}
.sts-list-item:hover{ background:var(--sts-input-bg); border-color:var(--sts-violet); }
.sts-list-item-title{ flex-grow:1; font-weight:600; font-size:.9rem; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.sts-list-item-date{ font-size:.76rem; color:var(--sts-text-dim); flex-shrink:0; }

.sts-back-link{ display:inline-flex; align-items:center; gap:6px; font-size:.86rem; font-weight:600; color:var(--sts-text-dim); text-decoration:none; }
.sts-back-link:hover{ color:var(--sts-violet); }

.sts-ticket-header{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:10px; margin-bottom:20px; }
.sts-ticket-header h3{ margin:0; }
.sts-ticket-meta{ display:flex; align-items:center; gap:8px; }

.sts-thread{ display:flex; flex-direction:column; gap:14px; margin-bottom:20px; }
.sts-message{ border-radius:16px; padding:14px 16px; border:1px solid var(--sts-border); }
.sts-message-customer{ background:var(--sts-input-bg); }
.sts-message-staff{ background:linear-gradient(var(--sts-bg-card),var(--sts-bg-card)) padding-box, var(--sts-grad) border-box; border-width:1.5px; }
.sts-message-author{ display:flex; align-items:center; gap:8px; font-weight:700; font-size:.84rem; margin-bottom:6px; }
.sts-staff-tag{ background:var(--sts-grad); color:#fff; font-size:.68rem; font-weight:700; padding:2px 9px; border-radius:100px; }
.sts-message-body{ font-size:.88rem; color:var(--sts-text); }
.sts-message-body p{ margin:0 0 8px; }
.sts-message-body p:last-child{ margin-bottom:0; }
.sts-message-date{ font-size:.72rem; color:var(--sts-text-dim); margin-top:8px; }

.sts-reply-form{ display:flex; flex-direction:column; }
.sts-closed-note{ text-align:center; padding:10px 0 0; }

.sts-empty-state{ text-align:center; }
.sts-empty-state h3{ margin-bottom:8px; }
.sts-empty-state p{ color:var(--sts-text-dim); font-size:.88rem; margin-bottom:0; }

@media (max-width:600px){
  .sts-card{ padding:20px 18px; border-radius:16px; }
  .sts-list-item{ flex-wrap:wrap; }
}