/* ===== صفحه ارسال پیشنهاد فروشنده — امتداد استایل نیازینو ===== */

.back-link{display:flex;align-items:center;gap:6px;color:#fff;opacity:.85;text-decoration:none;font-size:15px}
.back-link:hover{opacity:1}

.offer-hero{padding:44px 8% 0;text-align:center}
.offer-hero h1{font-size:34px;margin:0 0 8px}
.offer-hero p{margin:0;font-size:16px;opacity:.9}

.ref-wrap{max-width:1120px;margin:30px auto 0;padding:0 8%}
.ref-card{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);border-radius:20px;padding:22px 26px;display:grid;grid-template-columns:52px 1fr auto;gap:18px;align-items:center}
@media (max-width:700px){.ref-card{grid-template-columns:1fr;text-align:center}}
.ref-icon{width:52px;height:52px;border-radius:14px;background:rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center;font-size:24px}
.ref-eyebrow{font-size:12px;opacity:.6;margin-bottom:4px}
.ref-title{font-size:18px;font-weight:700;margin:0 0 6px}
.ref-desc{margin:0 0 8px;font-size:13.5px;opacity:.75;line-height:1.7}
.ref-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:12.5px;opacity:.65}
@media (max-width:700px){.ref-meta{justify-content:center}}
.ref-budget{text-align:left;white-space:nowrap;font-size:14.5px;font-weight:700}
.ref-budget small{display:block;font-weight:400;opacity:.6;font-size:11px}
@media (max-width:700px){.ref-budget{text-align:center}}

.layout{max-width:1120px;margin:26px auto 100px;padding:0 8%;display:grid;grid-template-columns:1.55fr 1fr;gap:24px;align-items:start}
@media (max-width:880px){.layout{grid-template-columns:1fr}}

.panel{background:rgba(255,255,255,.08);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.14);border-radius:22px;padding:30px 30px 34px}
.panel + .panel{margin-top:20px}
.panel h2{font-size:20px;margin:0 0 4px}
.panel .hint{margin:0 0 20px;opacity:.65;font-size:14px}

.field{margin-bottom:20px}
.field label{display:block;font-size:14px;margin-bottom:9px;opacity:.9}
.field .req{color:#5eead4}

.input,.select,.textarea{width:100%;box-sizing:border-box;background:rgba(255,255,255,.92);border:0;border-radius:14px;padding:15px 16px;font-family:inherit;font-size:15.5px;color:#0f172a;outline:none}
.textarea{resize:vertical;min-height:110px;line-height:1.7}
.input:focus,.select:focus,.textarea:focus{box-shadow:0 0 0 3px #06b6d4}

.price-input{position:relative}
.price-input .unit{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:#64748b;font-size:14px;pointer-events:none}
.price-input input{padding-left:64px}

.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:520px){.row2{grid-template-columns:1fr}}

.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{cursor:pointer;user-select:none;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);padding:12px 18px;border-radius:14px;font-size:14.5px;display:flex;align-items:center;gap:8px;transition:.2s}
.chip:hover{background:rgba(255,255,255,.16)}
.chip.active{background:linear-gradient(90deg,#2563eb,#06b6d4);border-color:transparent;box-shadow:0 8px 20px rgba(6,182,212,.35)}

.toggle-row{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);padding:14px 16px;border-radius:14px;cursor:pointer}
.toggle-row input{width:18px;height:18px;accent-color:#06b6d4}
.warranty-detail{margin-top:12px;display:none}
.warranty-detail.show{display:block}

.submit-btn{width:100%;border:0;cursor:pointer;background:linear-gradient(90deg,#22c55e,#06b6d4);color:#fff;padding:19px;border-radius:16px;font-size:18px;font-weight:700;font-family:inherit;box-shadow:0 16px 34px rgba(34,197,94,.3);transition:transform .15s}
.submit-btn:hover{transform:translateY(-2px)}

.trust-row{display:flex;justify-content:center;gap:22px;flex-wrap:wrap;margin-top:18px;font-size:13.5px;opacity:.75}

/* پیش‌نمایش پیشنهاد */
.preview{position:sticky;top:24px}
.preview .eyebrow{font-size:12.5px;letter-spacing:.5px;opacity:.6;margin-bottom:10px}
.preview-card{background:linear-gradient(160deg,rgba(255,255,255,.14),rgba(255,255,255,.05));border:1px solid rgba(255,255,255,.18);border-radius:20px;padding:24px}
.preview-price{font-size:26px;font-weight:900;margin-bottom:4px;min-height:32px}
.preview-price small{display:block;font-weight:400;font-size:12px;opacity:.65}
.preview-line{display:flex;justify-content:space-between;font-size:14px;padding:10px 0;border-top:1px dashed rgba(255,255,255,.18)}
.preview-desc{padding:12px 0;border-top:1px dashed rgba(255,255,255,.18)}
.preview-desc-label{display:block;font-size:12px;opacity:.6;margin-bottom:6px}
.preview-desc p{margin:0;font-size:13.5px;line-height:1.8;opacity:.9;white-space:pre-wrap;word-break:break-word}
.preview-line span:first-child{opacity:.6}
.preview-empty{opacity:.55;font-size:14px;line-height:1.9}
.preview-badge{display:inline-block;margin-top:16px;background:rgba(34,197,94,.18);color:#4ade80;border:1px solid rgba(34,197,94,.35);padding:8px 14px;border-radius:999px;font-size:12.5px}
.compare-note{margin-top:14px;font-size:12.5px;opacity:.6;line-height:1.8}

/* ===== ریسپانسیو موبایل ===== */
@media (max-width:880px){
  .preview{position:static}
}
@media (max-width:640px){
  .back-link{font-size:13px}
  .offer-hero{padding:32px 6% 0}
  .offer-hero h1{font-size:clamp(22px,7vw,30px)}
  .ref-wrap{padding:0 5%}
  .ref-card{padding:18px 16px}
  .layout{padding:0 5%;margin-top:20px}
  .panel{padding:20px 18px 24px}
  .panel h2{font-size:17px}
  .chip{padding:10px 14px;font-size:13px}
  .price-input input{padding-left:56px}
  .submit-btn{font-size:16px;padding:16px}
}