:root {
  --bg: #000;
  --fg: #fff;
  --muted: #9a9a9a;
  --line: #2a2a2a;
  --panel: #0d0d0d;
  --danger: #ff5a4d;
  --ok: #4ade80;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); }
body { font-family: Inter, sans-serif; font-size: 15px; line-height: 1.5; }
html[lang="ar"] body, html[lang="ar"] input, html[lang="ar"] select, html[lang="ar"] textarea, html[lang="ar"] button { font-family: Cairo, Inter, sans-serif; }

.top { display: flex; justify-content: space-between; align-items: center; padding: 18px 20px; border-bottom: 1px solid var(--line); }
.back { color: var(--fg); text-decoration: none; font-family: "Barlow Condensed", sans-serif; font-weight: 700; font-size: 26px; letter-spacing: 2px; }
.lang { background: none; color: var(--fg); border: 1px solid var(--line); padding: 6px 12px; cursor: pointer; font-size: 13px; }

.wrap { max-width: 640px; margin: 0 auto; padding: 32px 20px 80px; }
h1, h2, h3 { font-family: "Barlow Condensed", sans-serif; text-transform: uppercase; letter-spacing: .5px; margin: 0; }
html[lang="ar"] h1, html[lang="ar"] h2, html[lang="ar"] h3 { font-family: Cairo, sans-serif; text-transform: none; }
h1 { font-size: 40px; font-weight: 700; }
h2 { font-size: 24px; font-weight: 600; margin-bottom: 12px; }
.sub { color: var(--muted); margin: 6px 0 24px; }

.card { border: 1px solid var(--line); background: var(--panel); padding: 20px; margin-top: 16px; }
label { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); margin: 14px 0 6px; }
html[lang="ar"] label { text-transform: none; letter-spacing: 0; font-size: 13px; }
input[type=text], input[type=tel], select, textarea {
  width: 100%; padding: 12px; background: #000; color: var(--fg); border: 1px solid #444; border-radius: 0; font-size: 15px;
}
input:focus, select:focus, textarea:focus { outline: 1px solid var(--fg); }
input[type=number] { width: 70px; padding: 8px; background: #000; color: var(--fg); border: 1px solid #444; border-radius: 0; }

.btn {
  display: inline-block; margin-top: 20px; padding: 13px 26px; background: transparent; color: var(--fg);
  border: 1px solid var(--fg); border-radius: 0; font-family: "Barlow Condensed", sans-serif; font-weight: 600;
  font-size: 17px; letter-spacing: 1.5px; text-transform: uppercase; cursor: pointer;
}
html[lang="ar"] .btn { font-family: Cairo, sans-serif; text-transform: none; letter-spacing: 0; }
.btn:hover { background: var(--fg); color: #000; }
.btn:disabled { opacity: .4; cursor: not-allowed; background: transparent; color: var(--fg); }
.btn.ghost { border-color: #444; color: var(--muted); margin-inline-start: 10px; }

.choices { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.choice { border: 1px solid #444; padding: 22px 14px; text-align: center; cursor: pointer; background: #000; color: var(--fg); font-family: "Barlow Condensed", sans-serif; font-size: 22px; text-transform: uppercase; letter-spacing: 1px; }
html[lang="ar"] .choice { font-family: Cairo, sans-serif; text-transform: none; }
.choice small { display: block; font-family: Inter, sans-serif; text-transform: none; font-size: 12px; color: var(--muted); letter-spacing: 0; margin-top: 4px; }
.choice:hover, .choice.sel { border-color: var(--fg); background: #111; }

.item { border: 1px solid var(--line); padding: 14px; margin-top: 12px; }
.item .name { font-weight: 600; }
.item .meta { color: var(--muted); font-size: 13px; }
.item .row { display: flex; align-items: center; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
.item input[type=checkbox] { width: 18px; height: 18px; accent-color: #fff; }

.err { color: var(--danger); margin-top: 14px; font-weight: 500; }
.ok { color: var(--ok); font-weight: 600; }
.note { color: var(--muted); font-size: 13px; margin-top: 12px; }
.badge { display: inline-block; border: 1px solid #555; padding: 2px 8px; font-size: 12px; margin-inline-start: 8px; color: var(--muted); }
.summary dt { color: var(--muted); font-size: 12px; text-transform: uppercase; margin-top: 12px; }
.summary dd { margin: 2px 0 0; }
.big { font-family: "Barlow Condensed", sans-serif; font-size: 28px; letter-spacing: 1px; }
.steps { display: flex; gap: 6px; margin: 4px 0 8px; }
.steps span { flex: 1; height: 3px; background: #333; }
.steps span.on { background: #fff; }

@media (max-width: 480px) { h1 { font-size: 32px; } .choices { grid-template-columns: 1fr; } }

/* Exchange: replacement product + picker */
.selprod { display: flex; align-items: center; justify-content: space-between; gap: 10px; border: 1px solid #444; padding: 10px 12px; background: #000; }
.selprod span { font-weight: 600; }
.btn.small { margin-top: 0; padding: 6px 12px; font-size: 13px; }
.picker { margin-top: 12px; }
.pgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 12px; max-height: 520px; overflow-y: auto; }
.pcard { background: #fff; color: #000; border: 1px solid #fff; border-radius: 0; padding: 0; text-align: start; cursor: pointer; display: flex; flex-direction: column; }
.pcard:hover { outline: 2px solid #fff; outline-offset: 2px; }
.pcard img, .pcard .pimg { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; background: #eee; display: block; }
.pcard .pname { font-family: "Barlow Condensed", sans-serif; text-transform: uppercase; font-weight: 600; font-size: 15px; line-height: 1.15; padding: 8px 8px 2px; }
.pcard .pprice { font-size: 13px; padding: 0 8px 8px; color: #444; }
@media (max-width: 480px) { .pgrid { grid-template-columns: repeat(2, 1fr); } }

.quote { border: 1px solid #444; padding: 14px; margin-top: 14px; background: #000; }
.quote .summary dt:first-child { margin-top: 0; }

.track { margin: 14px 0; }
.track-row { padding: 8px 0; color: var(--muted); border-bottom: 1px solid var(--line); }
.track-row.done { color: var(--fg); }
.track-row.now { font-weight: 600; }
a.btn { text-decoration: none; }

.chips { display: flex; gap: 8px; overflow-x: auto; padding: 10px 0 4px; -webkit-overflow-scrolling: touch; }
.chip { flex: 0 0 auto; background: transparent; color: var(--fg); border: 1px solid #444; padding: 6px 14px; font-family: "Barlow Condensed", sans-serif; font-size: 15px; letter-spacing: 1px; text-transform: uppercase; cursor: pointer; white-space: nowrap; }
html[lang="ar"] .chip { font-family: Cairo, sans-serif; text-transform: none; letter-spacing: 0; }
.chip.on, .chip:hover { background: #fff; color: #000; border-color: #fff; }

.prow { display: flex; align-items: center; gap: 12px; }
.pthumb { width: 64px; height: 64px; object-fit: cover; border: 1px solid #333; background: #111; flex: 0 0 auto; }
.selprod { padding: 8px 0; }
.item > .btn.small { margin-top: 10px; }

.item.blocked { opacity: .6; }
.item.blocked .pthumb { filter: grayscale(1); }
.tag-no { display: inline-block; margin-top: 6px; font-size: 13px; color: #ff6b6b; border: 1px solid #ff6b6b; padding: 2px 8px; }

.rep { padding: 8px 0; }
@media (max-width: 480px) {
  .picker { margin-left: -28px; margin-right: -28px; }
  .picker .pgrid { gap: 8px; max-height: 70vh; }
  .picker input[type=text] { width: 100%; }
}