:root{
  --bg:#f3f6fb;--card:#fff;--ink:#1e2a3a;--muted:#6b778a;--line:#e1e7f0;
  --blue:#2f6bff;--green:#16a36a;--red:#e5484d;--amber:#f59f00;--purple:#7c5cff;--teal:#0ea5b7;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:IRANSans,Vazirmatn,Tahoma,"Segoe UI",sans-serif;line-height:1.85}
a{color:var(--blue)}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}

/* icons */
.ic{display:inline-grid;place-items:center;vertical-align:middle;flex:none}
.ic svg{width:16px;height:16px}
.i-send svg{transform:scaleX(-1)}

/* header */
.top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:10px 20px;background:var(--card);border-bottom:3px solid var(--blue)}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--ink);text-decoration:none;font-size:1.1rem}
.brand .ic{width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff}
.brand .ic svg{width:20px;height:20px}
nav{display:flex;gap:6px 14px;align-items:center;flex-wrap:wrap}
.nl{display:inline-flex;align-items:center;gap:6px;text-decoration:none;color:var(--ink);padding:4px 8px;border-radius:8px}
.nl:hover{background:var(--bg)}
.nl .ic{color:var(--c,var(--blue))}
.nl .ic svg{width:18px;height:18px}
.who{display:inline-flex;align-items:center;gap:6px;color:var(--muted)}

main{max-width:780px;margin:24px auto;padding:0 16px}
.card{background:var(--card);border:1px solid var(--line);border-top:4px solid var(--c,var(--blue));border-radius:14px;padding:22px;box-shadow:0 2px 10px rgba(30,42,58,.05)}
.auth{max-width:440px;margin:0 auto}
h1{display:flex;align-items:center;gap:10px;font-size:1.3rem;margin:0 0 16px}
h1 .ic{color:var(--c,var(--blue))}
h1 .ic svg{width:26px;height:26px}
h2{display:flex;align-items:center;gap:8px;font-size:1.05rem;margin:26px 0 8px}
h2 .ic{color:var(--purple)}

/* forms */
label{display:block;margin:14px 0 4px;font-weight:600}
input[type=text],input[type=email],input[type=password],textarea,input[type=file],select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font:inherit;background:#fff}
input:focus,textarea:focus,select:focus{border-color:var(--blue)}
textarea{min-height:150px;resize:vertical}
.hint{color:var(--muted);font-size:.85rem}
.err{background:#fdecee;color:#b3262b;padding:10px 14px;border-radius:10px;margin-bottom:12px;border-right:4px solid var(--red)}
.err p{margin:0}
.ok{background:#e5f7ee;color:#0f7a4e;padding:10px 14px;border-radius:10px;margin-bottom:12px;border-right:4px solid var(--green)}

/* buttons: solid color + white chip holding a colored icon */
.btn{--c:var(--blue);display:inline-flex;align-items:center;gap:8px;margin-top:16px;padding:7px 16px 7px 12px;border:0;border-radius:10px;background:var(--c);color:#fff;font:inherit;font-weight:600;text-decoration:none;cursor:pointer}
.btn:hover{filter:brightness(1.07)}
.btn .ic{width:26px;height:26px;border-radius:50%;background:#fff;color:var(--c)}
.btn-green{--c:var(--green)} .btn-red{--c:var(--red)} .btn-amber{--c:var(--amber)} .btn-purple{--c:var(--purple)} .btn-teal{--c:var(--teal)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-ghost .ic{background:var(--c);color:#fff}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.actions form{margin:0}
.actions .btn{margin-top:0}
.links{margin-top:18px}
.links .btn{margin-top:0}

/* attachment link */
.att{display:inline-flex;align-items:center;gap:6px;margin-top:8px;padding:4px 12px 4px 8px;border-radius:99px;background:#eaf0ff;color:var(--blue);text-decoration:none;font-size:.9rem}
.att .ic{color:var(--blue)}

/* tables & badges */
.tw{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{text-align:right;padding:10px 8px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:600;font-size:.88rem;background:#f8fafd}
tr:hover td{background:#fafcff}
.badge{display:inline-flex;align-items:center;gap:6px;padding:1px 10px;border-radius:99px;font-size:.8rem;font-weight:600}
.badge::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.s-open{background:#fff3da;color:#b36b00}
.s-answered{background:#e1f6ec;color:#0f7a4e}
.s-closed{background:#eceff4;color:#5b6676}

/* conversation */
.desc{white-space:pre-wrap;word-break:break-word}
.meta{display:flex;align-items:center;gap:6px;flex-wrap:wrap;color:var(--muted);font-size:.9rem;margin-bottom:10px}
.msg{border:1px solid var(--line);border-right:4px solid var(--teal);border-radius:10px;padding:10px 14px;margin:12px 0;background:#fff}
.msg.admin{background:#eef3ff;border-right-color:var(--blue)}
.msg .meta{margin-bottom:4px}
.msg .ic{color:var(--muted)}
.empty{text-align:center;color:var(--muted);padding:32px 0}

/* stats + filters */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin-bottom:16px}
.stat{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:12px;background:color-mix(in srgb,var(--c) 10%,#fff);border:1px solid color-mix(in srgb,var(--c) 25%,#fff)}
.stat .ic{width:36px;height:36px;border-radius:10px;background:var(--c);color:#fff}
.stat .ic svg{width:20px;height:20px}
.stat b{display:block;font-size:1.25rem;line-height:1.2}
.stat span{color:var(--muted);font-size:.85rem}
.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.filters input,.filters select{width:auto;flex:1 1 180px}
.filters .btn{margin-top:0}
.atts{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.atts .att{margin-top:0}
.captcha{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.captcha img{height:35px;width:100px;border:1px solid var(--line);border-radius:8px;background:#fff}
.btn-sm{margin-top:0;padding:3px 12px 3px 8px;font-size:.9rem}
.btn-sm .ic{width:22px;height:22px}
.rules{list-style:none;padding:0;margin:6px 0 0;font-size:.85rem;color:var(--muted)}
.rules li::before{content:"○ "}
.rules li.ok{color:var(--green)}
.rules li.ok::before{content:"✓ "}