/* SO-101 product / pre-order page - deep-space glassmorphism, scrollable. */
:root {
  --bg: #0a0a0a;
  --bg2: #111111;
  --txt: #f4f3f8;
  --txt-dim: #a0a0a0;
  --txt-faint: #5f636f;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --accent: #b49bff;
  --accent-rgb: 180 155 255;
  --accent-light: #c4b5ff;
  --accent-deep: #8b6fcc;
  --accent-muted: #6b5aa0;
  --accent-2: #6b5aa0;
  --glass: rgba(255, 255, 255, 0.045);
  --glass-strong: rgba(255, 255, 255, 0.08);
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --disp: "Plus Jakarta Sans", "Inter", system-ui, sans-serif;
  --ui: "Plus Jakarta Sans", "Inter", system-ui, -apple-system, sans-serif;
  --maxw: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--txt);
  font-family: var(--ui);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  line-height: 1.5;
}

/* ---- space backdrop ---- */
#space {
  position: fixed; inset: 0; z-index: -3;
  /* fully flat #0a0a0a, like the corporate site (the starfield gives the space feel) */
  background: #0a0a0a;
}
#stars {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.7;
  background-image:
    radial-gradient(1.4px 1.4px at 20% 30%, rgba(255,255,255,0.9), transparent),
    radial-gradient(1.2px 1.2px at 70% 60%, rgba(255,255,255,0.7), transparent),
    radial-gradient(1px 1px at 45% 80%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.6px 1.6px at 85% 25%, rgba(255,255,255,0.85), transparent),
    radial-gradient(1px 1px at 12% 75%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.2px 1.2px at 60% 12%, rgba(255,255,255,0.7), transparent),
    radial-gradient(1px 1px at 33% 50%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1.3px 1.3px at 92% 78%, rgba(255,255,255,0.6), transparent);
  background-repeat: repeat; background-size: 600px 600px;
  animation: drift 120s linear infinite;
}
@keyframes drift { from { background-position: 0 0; } to { background-position: 600px 600px; } }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ---------- top nav ---------- */
#nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 10, 10, 0.62); backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  border-bottom: 1px solid var(--line);
}
#nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: baseline; gap: 11px; text-decoration: none; }
.brand .mark { font-family: var(--disp); font-weight: 700; font-size: 21px; color: var(--txt); letter-spacing: -0.01em; }
.brand .mark b { color: var(--accent); }
.brand .tag { font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--txt-faint); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 13.5px; color: var(--txt-dim); text-decoration: none; transition: color 0.16s; }
.nav-links a:hover { color: var(--txt); }
.nav-cta {
  font-family: var(--ui); font-weight: 600; font-size: 13px; color: #07090f;
  background: var(--accent); border: 0; padding: 10px 18px; border-radius: 10px; cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s; box-shadow: 0 6px 20px rgb(var(--accent-rgb) / 0.35);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgb(var(--accent-rgb) / 0.5); }
.nav-back { display: inline-flex; align-items: center; gap: 7px; }
.nav-back svg { width: 14px; height: 14px; }
@media (max-width: 720px) { .nav-links a:not(.nav-cta-wrap) { display: none; } }

/* ---------- hero ---------- */
.hero { padding: 78px 0 60px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent);
  border: 1px solid rgb(var(--accent-rgb) / 0.3); background: rgb(var(--accent-rgb) / 0.08);
  padding: 6px 12px; border-radius: 100px; margin-bottom: 22px;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.hero h1 {
  font-family: var(--disp); font-weight: 600; font-size: clamp(38px, 5vw, 62px); line-height: 1.02;
  letter-spacing: -0.025em; margin-bottom: 22px;
}
.hero h1 em { font-style: normal; background: linear-gradient(135deg, #b49bff, #d4c5ff, #8b6fcc); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }
.hero .lead { font-size: 17px; line-height: 1.6; color: var(--txt-dim); max-width: 480px; margin-bottom: 30px; }
.hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--ui); font-weight: 600; font-size: 15px; color: #07090f;
  background: var(--accent); border: 0; padding: 15px 26px; border-radius: 13px; cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s; box-shadow: 0 10px 30px rgb(var(--accent-rgb) / 0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 42px rgb(var(--accent-rgb) / 0.55); }
.btn-primary svg { width: 17px; height: 17px; }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--ui); font-weight: 500; font-size: 15px; color: var(--txt);
  background: var(--glass); border: 1px solid var(--line-strong); padding: 14px 22px; border-radius: 13px;
  text-decoration: none; transition: all 0.16s; backdrop-filter: blur(12px);
}
.btn-ghost:hover { background: var(--glass-strong); transform: translateY(-2px); }
.btn-ghost svg { width: 16px; height: 16px; color: var(--accent-2); }
.free-note { margin-top: 16px; font-family: var(--mono); font-size: 11.5px; color: var(--txt-faint); letter-spacing: 0.02em; }
.free-note b { color: var(--txt-dim); font-weight: 500; }

/* hero visual */
.hero-visual { position: relative; }
.glow-ring {
  position: absolute; inset: -8%; border-radius: 50%;
  background: radial-gradient(circle, rgb(var(--accent-rgb) / 0.18), transparent 62%);
  filter: blur(20px); z-index: -1;
}

/* image placeholder */
.imgph {
  position: relative; border-radius: 18px; overflow: hidden;
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,0.035) 0 12px, rgba(255,255,255,0.015) 12px 24px);
  border: 1px solid var(--line); display: flex; align-items: center; justify-content: center;
}
.imgph::after {
  content: attr(data-label); position: absolute; bottom: 12px; left: 12px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.06em; color: var(--txt-faint);
  background: rgba(10,10,10,0.62); padding: 4px 8px; border-radius: 6px; border: 1px solid var(--line);
}
.imgph .ph-icon { width: 46px; height: 46px; color: rgba(255,255,255,0.18); }
.hero-visual .imgph { aspect-ratio: 4 / 3.4; }

/* real images inside placeholders */
.imgph.has-img { background: #0d0d0d; }
.imgph.has-img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
/* renders / logos: show the whole part, padded on the dark panel */
.imgph.has-img.contain img { object-fit: contain; padding: 16px; }
.imgph.has-img.on-light { background: #f3f4f6; }

/* ---------- FAQ ---------- */
.faq { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1px solid var(--line); background: rgba(255,255,255,0.025); border-radius: 14px; overflow: hidden; transition: border-color 0.18s, background 0.18s; }
.faq-item[open] { border-color: var(--line-strong); background: rgba(255,255,255,0.045); }
.faq-item summary { list-style: none; cursor: pointer; padding: 18px 22px; font-family: var(--disp); font-weight: 600; font-size: 16.5px; color: var(--txt); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-family: var(--mono); font-size: 22px; color: var(--accent); line-height: 1; transition: transform 0.2s; flex: none; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 22px 20px; margin: 0; font-size: 14.5px; line-height: 1.6; color: var(--txt-dim); }

/* ---------- section frame ---------- */
section { position: relative; }
.sec { padding: 70px 0; }
.sec-head { margin-bottom: 40px; max-width: 640px; }
.sec-kicker { font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }
.sec-title { font-family: var(--disp); font-weight: 800; font-size: clamp(28px, 3.6vw, 44px); letter-spacing: -0.02em; line-height: 1.06; }
.sec-sub { font-size: 15.5px; color: var(--txt-dim); margin-top: 14px; line-height: 1.6; }

/* divider line */
.rule { height: 1px; background: var(--line); margin: 0 auto; max-width: var(--maxw); }

/* ---------- specs strip ---------- */
.specs-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.spec-card {
  background: var(--glass); border: 1px solid var(--line); border-radius: 16px; padding: 22px 20px;
  backdrop-filter: blur(14px); transition: transform 0.18s, border-color 0.18s;
}
.spec-card:hover { transform: translateY(-3px); border-color: rgb(var(--accent-rgb) / 0.22); box-shadow: 0 20px 60px rgb(var(--accent-rgb) / 0.10); }
.spec-card .k { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--txt-faint); margin-bottom: 12px; }
.spec-card .v { font-family: var(--disp); font-weight: 600; font-size: 21px; color: var(--txt); letter-spacing: -0.01em; }
.spec-card .v small { display: block; font-family: var(--ui); font-weight: 400; font-size: 12.5px; color: var(--txt-dim); margin-top: 6px; letter-spacing: 0; }
@media (max-width: 860px) { .specs-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- parts ---------- */
.parts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.part-card {
  background: var(--glass); border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
  backdrop-filter: blur(14px); transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.part-card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: 0 24px 50px rgba(0,0,0,0.4); }
.part-card .imgph { aspect-ratio: 16 / 10; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; }
.part-body { padding: 20px; }
.part-body .qty { font-family: var(--mono); font-size: 10.5px; color: var(--accent); letter-spacing: 0.06em; margin-bottom: 8px; }
.part-body h3 { font-family: var(--disp); font-weight: 600; font-size: 18px; letter-spacing: -0.01em; margin-bottom: 8px; }
.part-body p { font-size: 13.5px; color: var(--txt-dim); line-height: 1.55; }
.part-body .mat { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 7px; }
.mat-tag { font-family: var(--mono); font-size: 10px; color: var(--txt-dim); border: 1px solid var(--line); padding: 4px 9px; border-radius: 6px; }
@media (max-width: 900px) { .parts-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .parts-grid { grid-template-columns: 1fr; } }

/* ---------- gallery ---------- */
.gallery { display: grid; grid-template-columns: 2fr 1fr 1fr; grid-template-rows: 200px 200px; gap: 14px; }
.gallery .imgph:nth-child(1) { grid-row: span 2; }
@media (max-width: 760px) { .gallery { grid-template-columns: 1fr 1fr; } .gallery .imgph:nth-child(1) { grid-column: span 2; grid-row: auto; } }

/* ---------- catalog ---------- */
.catalog { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.cat-card {
  background: var(--glass); border: 1px solid var(--line); border-radius: 20px; overflow: hidden;
  backdrop-filter: blur(14px); display: flex; flex-direction: column; transition: transform 0.2s, border-color 0.2s;
}
.cat-card:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.cat-card .imgph { aspect-ratio: 16/9; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; }
.cat-body { padding: 24px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.cat-body .status { align-self: flex-start; font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; padding: 5px 11px; border-radius: 100px; }
.status.open { color: var(--accent); background: rgb(var(--accent-rgb) / 0.1); border: 1px solid rgb(var(--accent-rgb) / 0.3); }
.status.soon { color: var(--accent-2); background: rgba(110,160,255,0.1); border: 1px solid rgba(110,160,255,0.28); }
.cat-body h3 { font-family: var(--disp); font-weight: 600; font-size: 24px; letter-spacing: -0.015em; }
.cat-body p { font-size: 14px; color: var(--txt-dim); line-height: 1.55; flex: 1; }
.cat-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14px; color: var(--txt); text-decoration: none; align-self: flex-start; }
.cat-link svg { width: 15px; height: 15px; color: var(--accent); transition: transform 0.16s; }
.cat-link:hover svg { transform: translateX(4px); }
.cat-card.disabled { opacity: 0.62; }
@media (max-width: 760px) { .catalog { grid-template-columns: 1fr; } }

/* ---------- steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step {
  background: var(--glass); border: 1px solid var(--line); border-radius: 18px; padding: 28px 24px;
  backdrop-filter: blur(14px); transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.step:hover { transform: translateY(-4px); border-color: rgb(var(--accent-rgb) / 0.2); box-shadow: 0 20px 60px rgb(var(--accent-rgb) / 0.08); }
.step .num { font-family: var(--disp); font-weight: 800; font-size: clamp(52px, 6vw, 76px); line-height: 1; color: transparent; -webkit-text-stroke: 2px var(--accent); margin-bottom: 10px; }
.step h3 { font-family: var(--disp); font-weight: 700; font-size: 18px; margin-bottom: 8px; }
.step p { font-size: 13.5px; color: var(--txt-dim); line-height: 1.55; }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative; margin: 30px auto; max-width: var(--maxw); border-radius: 26px; overflow: hidden;
  background: linear-gradient(135deg, rgb(var(--accent-rgb) / 0.16), rgba(110,160,255,0.10));
  border: 1px solid var(--line-strong); padding: 60px 48px; text-align: center;
  backdrop-filter: blur(18px);
}
.cta-band h2 { font-family: var(--disp); font-weight: 800; font-size: clamp(30px, 4.2vw, 48px); letter-spacing: -0.025em; margin-bottom: 16px; }
.cta-band p { font-size: 16px; color: var(--txt-dim); max-width: 540px; margin: 0 auto 30px; line-height: 1.6; }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line); padding: 40px 0 60px; margin-top: 50px; }
footer .wrap { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
footer .fnote { font-family: var(--mono); font-size: 11px; color: var(--txt-faint); letter-spacing: 0.03em; }
footer a { color: var(--txt-dim); text-decoration: none; font-size: 13px; }
footer a:hover { color: var(--txt); }

/* ---------- reveal animation (progressive enhancement) ---------- */
.reveal-on .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s cubic-bezier(.2,.7,.2,1), transform 0.7s cubic-bezier(.2,.7,.2,1); }
.reveal-on .reveal.in { opacity: 1; transform: none; }

/* ---------- reservation modal ---------- */
#modal {
  position: fixed; inset: 0; z-index: 100; display: none;
  align-items: center; justify-content: center; padding: 24px;
}
#modal.open { display: flex; }
#modal .scrim { position: absolute; inset: 0; background: rgba(2,3,8,0.7); backdrop-filter: blur(8px); animation: fade 0.3s ease; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
.modal-card {
  position: relative; width: 100%; max-width: 540px; max-height: 90vh; overflow-y: auto;
  background: linear-gradient(165deg, rgba(34,38,52,0.85), rgba(10,12,20,0.9));
  backdrop-filter: blur(30px) saturate(1.3); border: 1px solid var(--line-strong);
  border-radius: 24px; box-shadow: 0 40px 100px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.14);
  padding: 34px; animation: pop 0.35s cubic-bezier(.2,.8,.2,1);
}
@keyframes pop { from { opacity: 0; transform: scale(0.94) translateY(12px); } to { opacity: 1; transform: none; } }
.modal-card .close {
  position: absolute; top: 18px; right: 18px; width: 34px; height: 34px; border-radius: 9px;
  background: rgba(255,255,255,0.07); border: 1px solid var(--line); color: var(--txt-dim); cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: all 0.15s;
}
.modal-card .close:hover { background: rgba(255,255,255,0.14); color: var(--txt); }
.modal-card h2 { font-family: var(--disp); font-weight: 600; font-size: 26px; letter-spacing: -0.02em; margin-bottom: 8px; }
.modal-card .msub { font-size: 14px; color: var(--txt-dim); margin-bottom: 24px; line-height: 1.55; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 12.5px; color: var(--txt-dim); margin-bottom: 7px; font-weight: 500; }
.field label .req { color: var(--accent); }
.field input, .field select, .field textarea {
  width: 100%; font-family: var(--ui); font-size: 14px; color: var(--txt);
  background: rgba(255,255,255,0.05); border: 1px solid var(--line-strong); border-radius: 11px;
  padding: 12px 14px; outline: none; transition: border-color 0.16s, background 0.16s;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); background: rgba(255,255,255,0.08); }
.field input.err, .field select.err { border-color: #e5546e; }
.field textarea { resize: vertical; min-height: 72px; }
.field .errmsg { font-size: 11.5px; color: #e5878f; margin-top: 6px; display: none; }
.field.show-err .errmsg { display: block; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.seg-choice { display: flex; gap: 8px; flex-wrap: wrap; }
.seg-choice label {
  flex: 1; min-width: 80px; text-align: center; font-size: 13px; color: var(--txt-dim); cursor: pointer;
  background: rgba(255,255,255,0.04); border: 1px solid var(--line); border-radius: 10px; padding: 10px 8px;
  margin: 0; transition: all 0.14s;
}
.seg-choice input { position: absolute; opacity: 0; pointer-events: none; }
.seg-choice label:hover { background: rgba(255,255,255,0.08); }
.seg-choice input:checked + label, .seg-choice label.sel { background: var(--accent-soft, rgb(var(--accent-rgb) / 0.16)); border-color: var(--accent); color: var(--txt); }
.modal-submit {
  width: 100%; margin-top: 8px; font-family: var(--ui); font-weight: 600; font-size: 15px; color: #07090f;
  background: var(--accent); border: 0; padding: 15px; border-radius: 13px; cursor: pointer;
  transition: transform 0.15s, filter 0.15s; box-shadow: 0 10px 28px rgb(var(--accent-rgb) / 0.4);
}
.modal-submit:hover { transform: translateY(-1px); filter: brightness(1.07); }
.modal-foot { font-family: var(--mono); font-size: 10.5px; color: var(--txt-faint); text-align: center; margin-top: 16px; letter-spacing: 0.02em; }

/* success state */
.modal-success { text-align: center; padding: 20px 6px; display: none; }
.modal-success.show { display: block; animation: pop 0.4s cubic-bezier(.2,.8,.2,1); }
.modal-success .check {
  width: 74px; height: 74px; border-radius: 50%; margin: 0 auto 22px;
  background: rgba(70,192,138,0.14); border: 1px solid rgba(70,192,138,0.4);
  display: flex; align-items: center; justify-content: center;
}
.modal-success .check svg { width: 36px; height: 36px; color: #46c08a; }
.modal-success h2 { font-family: var(--disp); font-weight: 600; font-size: 26px; margin-bottom: 12px; }
.modal-success p { font-size: 14.5px; color: var(--txt-dim); line-height: 1.6; max-width: 380px; margin: 0 auto 24px; }
.modal-form.hide { display: none; }

@media (max-width: 760px) {
  html, body { overflow-x: hidden; }
  .wrap { padding: 0 20px; }
  .sec { padding: 48px 0; }
  #nav .wrap { height: 58px; }
  .hero { padding: 52px 0 36px; }
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero h1 { font-size: clamp(30px, 8.2vw, 46px); margin-bottom: 18px; }
  .hero .lead { font-size: 15.5px; margin-bottom: 24px; }
  .hero-actions { gap: 12px; }
  .hero-actions .btn-primary, .hero-actions .btn-ghost { flex: 1 1 auto; justify-content: center; }
  .eyebrow { font-size: 10px; margin-bottom: 18px; }
  .sec-head { margin-bottom: 28px; }
  .field-row { grid-template-columns: 1fr; }
  .modal-card { padding: 24px 20px; border-radius: 20px; }
  .modal-card h2 { font-size: 22px; }
  .cta-band { padding: 40px 22px; }
}
@media (max-width: 420px) {
  .wrap { padding: 0 16px; }
  .hero h1 { font-size: 26px; }
  .specs-grid { gap: 10px; }
}
.hero h1 { overflow-wrap: break-word; }

/* ---------- brand logo (official #Robotics wordmark, replaces text mark) ---------- */
.brand-logo { height: 24px; display: block; width: auto; }
@media (max-width: 720px) { .brand-logo { height: 19px; } }

/* ---------- anatomy (open-source assembly videos, light cards) ---------- */
.anat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.anat-card { background: var(--glass); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; backdrop-filter: blur(14px); transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s; margin: 0; }
.anat-card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: 0 24px 50px rgba(0,0,0,0.4); }
.anat-media { aspect-ratio: 16 / 11; background: #f3f4f6; border-bottom: 1px solid var(--line); overflow: hidden; }
.anat-media video { width: 100%; height: 100%; object-fit: cover; display: block; }
.anat-card figcaption { padding: 14px 18px; display: flex; flex-direction: column; gap: 3px; }
.anat-card figcaption b { font-family: var(--disp); font-weight: 600; font-size: 16px; color: var(--txt); }
.anat-card figcaption span { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.05em; color: var(--txt-faint); }
.anat-note { margin-top: 20px; font-size: 12.5px; color: var(--txt-faint); text-align: center; }
@media (max-width: 860px) { .anat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .anat-grid { grid-template-columns: 1fr; } }

/* ---------- add-ons (Apple-style upgrades; base ships assembled, you add extras) ---------- */
.addon-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.addon-card { display: flex; flex-direction: column; background: var(--glass); border: 1px solid var(--line); border-radius: 20px; padding: 24px 24px 22px; backdrop-filter: blur(14px); transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s; }
.addon-card:hover { transform: translateY(-3px); border-color: var(--line-strong); box-shadow: 0 24px 50px rgba(0,0,0,0.4); }
.addon-media { width: 100%; aspect-ratio: 4 / 3; border-radius: 14px; margin-bottom: 16px; display: flex; align-items: center; justify-content: center; overflow: hidden; background: radial-gradient(120% 120% at 50% 38%, rgb(var(--accent-rgb) / 0.12), rgba(255,255,255,0.015) 58%, transparent); border: 1px solid var(--line); }
.addon-media img { width: 100%; height: 100%; object-fit: contain; padding: 6px; }
.addon-media.is-icon { color: var(--txt-dim); }
.addon-media.is-icon svg { width: 44px; height: 44px; }
/* spinning 3D thumbnails: cut the card's glass behind the model so the REAL page background (the
   fixed #space + #stars) shows through that rectangle. The glass layer is moved off the card onto
   the text body, so only the media area is a true window to the site's space; the model floats on it. */
.addon-card:has(.addon-media.spin3d) { background: transparent; backdrop-filter: none; -webkit-backdrop-filter: none; }
.addon-media.spin3d { background: transparent; border-color: transparent; }
.addon-card:has(.addon-media.spin3d) .addon-body {
  background: var(--glass); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border: 1px solid var(--line); border-radius: 14px; padding: 16px 16px 18px;
}
.addon-card.is-soon { opacity: 0.85; }
.addon-card.is-soon .addon-media { background: rgba(255,255,255,0.03); }
.addon-body { display: flex; flex-direction: column; flex: 1; }
.addon-tag { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 7px; }
.addon-card.is-soon .addon-tag { color: var(--txt-faint); }
.addon-body h3 { font-family: var(--disp); font-weight: 700; font-size: 19px; color: var(--txt); margin: 0 0 9px; letter-spacing: -0.01em; }
.addon-body p { font-size: 14px; line-height: 1.58; color: var(--txt-dim); margin: 0 0 14px; }
.addon-body .mat { margin-bottom: 16px; }
.addon-body .addon-cta, .addon-body .addon-soon { margin-top: auto; }
.addon-cta { display: inline-flex; align-self: flex-start; align-items: center; gap: 9px; font-family: var(--ui); font-weight: 600; font-size: 13.5px; color: #0a0a0b; background: var(--accent); border: 0; border-radius: 11px; padding: 10px 16px; cursor: pointer; transition: transform 0.15s, filter 0.15s, box-shadow 0.15s; box-shadow: 0 6px 22px rgb(var(--accent-rgb) / 0.4); }
.addon-cta:hover { filter: brightness(1.08); transform: translateY(-1px); box-shadow: 0 10px 30px rgb(var(--accent-rgb) / 0.5); }
.addon-cta svg { width: 15px; height: 15px; }
.addon-soon { display: inline-flex; align-self: flex-start; font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--txt-dim); border: 1px solid var(--line-strong); border-radius: 999px; padding: 6px 13px; }
@media (max-width: 720px) { .addon-grid { grid-template-columns: 1fr; } }

/* closing band under the accessory grid: try the add-ons live on the 3D model */
.addon-foot {
  margin-top: 28px; display: flex; flex-wrap: wrap; align-items: center; gap: 16px;
  padding: 20px 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--glass);
}
.addon-foot p { margin: 0; flex: 1 1 280px; font-size: 14.5px; line-height: 1.55; color: var(--txt-dim); }
.addon-foot p b { color: var(--txt); font-weight: 600; }
.addon-foot-cta {
  display: inline-flex; align-items: center; gap: 8px; flex: 0 0 auto;
  font-family: var(--ui); font-weight: 600; font-size: 13.5px; color: var(--accent); text-decoration: none;
  border: 1px solid rgb(var(--accent-rgb) / 0.4); border-radius: 12px; padding: 11px 17px;
  transition: background 0.15s, border-color 0.15s, transform 0.15s;
}
.addon-foot-cta:hover { background: rgb(var(--accent-rgb) / 0.14); border-color: var(--accent); transform: translateY(-1px); }
.addon-foot-cta svg { width: 15px; height: 15px; }