/* ══════════════════════════════════════════════
   Skyfast Enterprise — Payment Confirmation
   Brand blue: #0048f0
   ══════════════════════════════════════════════ */
:root{
  --blue:#0048f0;
  --blue-d:#0034b8;
  --blue-l:#eaf0ff;
  --ink:#0f172a;
  --ink-2:#475569;
  --muted:#64748b;
  --line:#e4e9f2;
  --bg:#f5f7fc;
  --green:#0a9d5c;
  --red:#dc2626;
  --amber:#b45309;
  --r:14px;
  --shadow:0 1px 2px rgba(16,24,40,.04),0 8px 24px -12px rgba(16,24,40,.12);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"IBM Plex Sans Thai","Noto Sans Arabic",Inter,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;
  font-size:15px;
}
body.lang-en{font-family:Inter,"IBM Plex Sans Thai",sans-serif}
body.lang-ar{font-family:"Noto Sans Arabic",Inter,sans-serif}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:860px;margin:0 auto;padding:0 16px}
.muted{color:var(--muted)}
.center{text-align:center}

/* ── Header ── */
.sf-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.sf-header-in{display:flex;align-items:center;justify-content:space-between;gap:12px;height:66px}
.sf-brand{display:flex;align-items:center;gap:10px;text-decoration:none;min-width:0}
.sf-brand img{height:30px;width:auto;display:block}
.sf-brand-sub{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sf-langs{display:flex;gap:4px;background:var(--bg);border-radius:999px;padding:3px;flex:0 0 auto}
.sf-langs a{padding:4px 11px;border-radius:999px;font-size:12.5px;font-weight:600;color:var(--ink-2)}
.sf-langs a.on{background:var(--blue);color:#fff}
.sf-langs a:hover{text-decoration:none}

/* ── Hero ── */
.hero{text-align:center;padding:38px 0 22px}
.hero h1{font-size:clamp(23px,4.4vw,31px);margin:0 0 8px;letter-spacing:-.4px;font-weight:700}
.hero p{margin:0 auto;max-width:620px;color:var(--ink-2);font-size:15px}

/* ── Card ── */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:22px;margin-bottom:16px}
.card-h{margin:0 0 14px;font-size:16px;font-weight:700}

/* ── Alerts ── */
.alert{padding:12px 15px;border-radius:11px;margin-bottom:14px;font-size:14px;font-weight:500}
.alert-error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}

/* ── Bank grid ── */
.bank-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:11px}
.bank{background:var(--blue-l);border:1px solid #d5e0ff;border-radius:11px;padding:13px 15px}
.bank-name{font-size:12.5px;font-weight:600;color:var(--blue-d);margin-bottom:5px}
.bank-no{display:flex;align-items:center;gap:7px;background:none;border:0;padding:0;cursor:pointer;
  font:inherit;font-weight:700;font-size:17px;color:var(--ink);letter-spacing:.4px;font-variant-numeric:tabular-nums}
.bank-no:hover{color:var(--blue)}
.bank-no.copied{color:var(--green)}
.bank-holder{font-size:11.5px;color:var(--muted);margin-top:3px}
.hint{font-size:12.5px;color:var(--muted);margin:12px 0 0}

/* ── Steps ── */
.step{padding:20px 0;border-top:1px solid var(--line)}
.step:first-of-type{border-top:0;padding-top:6px}
.step-h{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15.5px;margin-bottom:15px}
.step-h .num{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;
  background:var(--blue);color:#fff;font-size:13px;flex:0 0 26px}

/* ── Fields ── */
.grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
@media(max-width:620px){.grid{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:600;color:var(--ink-2)}
.field label i{color:var(--red);font-style:normal}
input[type=text],input[type=tel],input[type=email],input[type=date],input[type=time],
input[type=number],select,textarea{
  width:100%;padding:11px 13px;border:1.5px solid var(--line);border-radius:10px;font:inherit;
  font-size:14.5px;background:#fff;color:var(--ink);transition:border-color .15s,box-shadow .15s;
}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--blue);box-shadow:0 0 0 3px rgba(0,72,240,.12)}
/* แสดงขอบแดงเฉพาะช่องที่ผู้ใช้แตะแล้วยังผิด (ไม่ขึ้นก่อนกรอก) */
.touched:invalid{border-color:#fca5a5;background:#fffafa}
textarea{resize:vertical;min-height:74px}
.money{position:relative;display:flex;align-items:center}
.money span{position:absolute;left:13px;color:var(--muted);font-weight:600;pointer-events:none}
.money input{padding-left:29px;font-weight:600;font-variant-numeric:tabular-nums}
[dir=rtl] .money span{left:auto;right:13px}
[dir=rtl] .money input{padding-left:13px;padding-right:29px}

/* ── Lookup ── */
.lookup{display:flex;gap:10px;align-items:flex-end}
.lookup .grow{flex:1}
@media(max-width:520px){.lookup{flex-direction:column;align-items:stretch}}
.inv-result{margin-top:12px}
.inv-card{border:1.5px solid #bbf7d0;background:#f0fdf4;border-radius:11px;padding:14px 16px}
.inv-card.bad{border-color:#fecaca;background:#fef2f2}
.inv-card h4{margin:0 0 10px;font-size:13.5px;color:#166534;display:flex;align-items:center;gap:7px}
.inv-card.bad h4{color:#991b1b}
.inv-card dl{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;margin:0}
.inv-card dt{font-size:11.5px;color:var(--muted);margin-bottom:1px}
.inv-card dd{margin:0;font-weight:600;font-size:14.5px;font-variant-numeric:tabular-nums}
.inv-card dd.big{color:var(--blue);font-size:17px}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11.5px;font-weight:700}
.badge.due{background:#fef3c7;color:#92400e}
.badge.partial{background:#dbeafe;color:#1e40af}
.badge.paid{background:#dcfce7;color:#166534}
.badge.canceled{background:#f1f5f9;color:#64748b}

/* ── Upload ── */
.drop{position:relative;border:2px dashed #c7d2e5;border-radius:12px;background:#fafbfe;
  padding:24px 16px;text-align:center;cursor:pointer;transition:.15s;overflow:hidden}
.drop:hover,.drop.over{border-color:var(--blue);background:var(--blue-l)}
.drop input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.drop-in{display:flex;flex-direction:column;align-items:center;gap:5px;color:var(--muted);pointer-events:none}
.drop-in svg{color:var(--blue)}
.drop-in strong{font-size:14px;color:var(--ink-2)}
.drop-in small{font-size:11.5px}
.drop img{max-height:180px;max-width:100%;border-radius:9px;margin-top:10px;display:none;position:relative;z-index:2}
.drop.has img{display:block}
.drop.has .drop-in{display:none}

/* ── Checkbox ── */
.check{display:flex;gap:10px;align-items:flex-start;margin:11px 0;font-size:13px;color:var(--ink-2);cursor:pointer}
.check input{margin-top:3px;width:17px;height:17px;accent-color:var(--blue);flex:0 0 17px}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 20px;
  border-radius:11px;border:1.5px solid transparent;font:inherit;font-size:14.5px;font-weight:600;
  cursor:pointer;transition:.15s;text-decoration:none;white-space:nowrap}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover:not(:disabled){background:var(--blue-d)}
.btn-primary:disabled{opacity:.65;cursor:not-allowed}
.btn-outline{background:#fff;color:var(--blue);border-color:#c7d7ff}
.btn-outline:hover{background:var(--blue-l)}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line)}
.btn-block{width:100%;margin-top:16px;padding:14px}
.spin{width:15px;height:15px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;
  border-radius:50%;animation:sp .7s linear infinite;display:none}
.btn.loading .spin{display:block}
.btn.loading .btn-txt{opacity:.8}
@keyframes sp{to{transform:rotate(360deg)}}
.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}

/* ── Success ── */
.success-card{text-align:center;padding:34px 24px}
.tick{width:76px;height:76px;margin:0 auto 16px}
.tick circle{stroke:#0a9d5c;stroke-width:2.5;stroke-dasharray:157;stroke-dashoffset:157;animation:d1 .6s ease-out forwards}
.tick path{stroke:#0a9d5c;stroke-width:3.5;stroke-linecap:round;stroke-linejoin:round;
  stroke-dasharray:40;stroke-dashoffset:40;animation:d2 .35s .5s ease-out forwards}
@keyframes d1{to{stroke-dashoffset:0}}
@keyframes d2{to{stroke-dashoffset:0}}
.success-card h1{font-size:22px;margin:0 0 6px}
.refbox{background:var(--blue-l);border:1px dashed #b9ccff;border-radius:12px;padding:15px;margin:20px 0}
.refbox span{display:block;font-size:12px;color:var(--muted)}
.refbox strong{display:block;font-size:23px;letter-spacing:1.4px;color:var(--blue-d);font-variant-numeric:tabular-nums;margin:3px 0}
.refbox small{font-size:11.5px;color:var(--muted)}
.sumgrid{display:grid;grid-template-columns:1fr 1fr;gap:12px;text-align:left;margin:0 0 8px}
@media(max-width:520px){.sumgrid{grid-template-columns:1fr}}
.sumgrid>div{background:#fafbfe;border:1px solid var(--line);border-radius:10px;padding:11px 13px}
.sumgrid dt{font-size:11.5px;color:var(--muted)}
.sumgrid dd{margin:2px 0 0;font-weight:600;font-size:14.5px}
.sumgrid dd.hl{color:var(--blue);font-size:17px}
.row-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:20px}

/* ── Footer ── */
.sf-footer{border-top:1px solid var(--line);background:#fff;margin-top:34px;padding:20px 0;font-size:12.5px}
.sf-footer .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ── RTL tweaks ── */
[dir=rtl] .step-h .num{margin-left:0}
[dir=rtl] .bank-no,[dir=rtl] .inv-card dl{direction:rtl}

/* ── Print ── */
@media print{
  .sf-header,.sf-footer,.btn,.sf-langs{display:none!important}
  body{background:#fff}
  .card{box-shadow:none;border-color:#ddd}
}