@charset "utf-8";

/* ═══════════════════════════════════════════════════════════
   Jewel Labs
   One border value, one shadow recipe, one hover physics,
   one entrance. Evidence is the ornament.
   ═══════════════════════════════════════════════════════════ */

:root {
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI",
          system-ui, Roboto, "Helvetica Neue", sans-serif;
  --display: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;

  --ink:        #24242a;
  --muted:      rgba(36, 36, 42, 0.66);
  --faint:      rgba(36, 36, 42, 0.48);
  --line:       rgba(20, 20, 15, 0.14);   /* the border value. There is no second one. */
  --fill:       rgba(36, 36, 42, 0.05);
  --white:      #ffffff;
  --steel:      #4a80ab;                  /* data marks and focus only, never text */
  --steel-soft: rgba(74, 128, 171, 0.10);
  --bad:        #a8322a;

  /* light from the upper left, so the x offsets are positive */

  --r: 0px;
  --wrap: 1120px; --wrap-wide: 1400px; --wrap-read: 820px;
  --pad: clamp(20px, 3.4vw, 48px);
  --sec: clamp(64px, 7vh, 96px);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-io:  cubic-bezier(0.32, 0.72, 0, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scrollbar-width: none; overscroll-behavior-y: none; scroll-behavior: smooth; scroll-padding-top: 96px; }
html::-webkit-scrollbar { display: none; }
html.no-scroll { overflow: hidden; }

body {
  font-family: var(--sans);
  font-weight: 400;
  color: var(--ink);
  background: #f7f6f3;
  background-image:
    linear-gradient(to right, rgba(20,20,15,.014) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20,20,15,.014) 1px, transparent 1px),
    radial-gradient(90% 60% at 50% -12%, rgba(74,128,171,.045) 0%, rgba(74,128,171,0) 72%);
  background-size: 120px 120px, 120px 120px, 100% 100%;
  background-attachment: fixed, fixed, fixed;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, svg, video { display: block; max-width: 100%; }
button, input { font: inherit; color: inherit; }
ul, ol { list-style: none; }

:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px #fff, 0 0 0 4px rgba(14,14,16,.30);
  border-radius: var(--r);
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; border: 0;
}
.skip { position: absolute; left: -9999px; z-index: 900; background: var(--ink); color: #fff; padding: 12px 18px; font-size: 14px; border-radius: var(--r); }
.skip:focus { left: 12px; top: 12px; }

/* ═════════ TYPE ═════════ */
h1, h2 { font-family: var(--display); font-weight: 500; text-wrap: balance; }
h3 { font-weight: 500; text-wrap: balance; }
.brand { font-family: var(--display); }
p { text-wrap: pretty; }

h1 { font-size: clamp(38px, 4.05vw, 58px); line-height: 1.06; letter-spacing: -0.025em; }
h2 { font-size: clamp(27px, 2.85vw, 41px); line-height: 1.12; letter-spacing: -0.02em; }
h3 { font-size: clamp(19px, 1.6vw, 23px); line-height: 1.35; letter-spacing: -0.015em; }

.label {
  display: block; font-size: 12px; font-weight: 500;
  letter-spacing: 0.16em; color: var(--faint); text-transform: none;
}
.lede { font-size: 18px; line-height: 1.55; color: var(--muted); max-width: 52ch; }
.body { font-size: 16px; line-height: 1.6; color: var(--muted); max-width: 42ch; }
.note { font-size: 12px; line-height: 1.5; color: var(--faint); }
sup.ref { font-size: 10px; color: var(--faint); margin-left: 2px; vertical-align: super; }

/* ═════════ LAYOUT ═════════ */
section { padding: var(--sec) var(--pad); }
.wrap { max-width: var(--wrap); margin-inline: auto; }
.wrap-read { max-width: var(--wrap-read); margin-inline: auto; }
.head { margin-bottom: 56px; }
.head h2 { margin-top: 12px; }
.head .lede { margin-top: 18px; }

/* ═════════ SURFACES ═════════ */
.card {
  background: rgba(255,255,255,.55); border: 1px solid var(--line);
  border-radius: var(--r); padding: 32px;
}
.media { border-radius: var(--r); overflow: hidden; background: var(--fill); }
.media img, .media video { width: 100%; height: 100%; object-fit: cover; }
.chip {
  display: inline-block; border: 1px solid var(--line); border-radius: var(--r);
  padding: 5px 12px; font-size: 13px; color: var(--muted); background: #fff;
}
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  border-radius: var(--r); border: 1px solid var(--ink);
  background: var(--ink); color: #fff;
  padding: 11px 22px; font-size: 15px; font-weight: 500; cursor: pointer;
  transition: background .2s var(--ease-io), transform .2s var(--ease-io), box-shadow .2s var(--ease-io);
}
.btn::after { content: "\2192"; transition: transform .2s var(--ease-io); }
.btn:hover { background: #3a3a42; transform: translateY(-1px); }
.btn:hover::after { transform: translateX(3px); }
.btn--ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { background: var(--fill); }
.btn:disabled { opacity: .45; pointer-events: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

.tlink {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 15px; font-weight: 500; color: var(--ink); cursor: pointer;
  background: none; border: 0; padding: 0;
}
.tlink::after { content: "\2192"; transition: transform .2s var(--ease-io); }
.tlink:hover::after { transform: translateX(3px); }

@media (max-width: 640px) { .card { padding: 22px; border-radius: var(--r); } }

/* ═════════ NAV ═════════
   A straight rule across the top. No pill, no float, no blur. */
nav {
  position: fixed; inset-inline: 0; top: 0; z-index: 100;
  background: #f7f6f3; border-bottom: 1px solid var(--line);
}
.nav-in {
  max-width: var(--wrap); margin-inline: auto;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  height: 56px; padding-inline: var(--pad);
}
.brand {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 15px; font-weight: 600; letter-spacing: -0.01em; white-space: nowrap;
}
.brand .mark { width: 17px; height: 17px; flex: none; }
.links { display: flex; align-items: center; gap: 28px; }
.links a { font-size: 14px; color: var(--muted); transition: color .2s var(--ease-io); }
.links a:hover { color: var(--ink); }
.nav-in .nav-cta { font-size: 14px; font-weight: 500; }
.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  font-size: 14px; padding: 8px 0;
}

@media (max-width: 900px) {
  .nav-in { flex-wrap: wrap; height: auto; min-height: 56px; }
  .nav-toggle { display: block; margin-left: auto; }
  .nav-in > .nav-cta { display: none; }
  .links {
    display: none; order: 3; width: 100%; flex-direction: column; align-items: stretch;
    gap: 0; padding-bottom: 4px; border-top: 1px solid var(--line);
  }
  .links.open { display: flex; }
  .links a { padding: 13px 0; font-size: 15px; border-bottom: 1px solid var(--line); }
  .links a:last-child { border-bottom: 0; }
}

/* ═════════ HERO ═════════ */
.hero {
  padding: clamp(104px, 14vh, 136px) var(--pad) clamp(20px, 3vh, 32px);
  text-align: center;
}
.hero h1 { min-height: 2.12em; }
.hero h1 .caret {
  display: inline-block; width: 1px; height: .82em; margin-left: 3px;
  background: var(--faint); vertical-align: -0.06em;
  animation: caret 1.05s steps(1) infinite;
}
.hero h1.done .caret { display: none; }
@keyframes caret { 0%,50% { opacity: 1 } 50.01%,100% { opacity: 0 } }
.hero .lede { margin: 18px auto 0; }
.hero .btn-row { justify-content: center; margin-top: 28px; }
.hero-frame {
  position: relative;
  max-width: var(--wrap); margin: clamp(40px, 6vh, 64px) auto 0;
  border: 1px solid var(--line); border-radius: var(--r); overflow: hidden;
  aspect-ratio: 21 / 9; background: var(--fill);
}
.hero-frame video, .hero-frame img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 64%; }
.hero-frame::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0) 55%, rgba(255,255,255,.85) 100%);
}
.hero-scale {
  position: absolute; left: 16px; bottom: 14px; z-index: 2;
  font-size: 11px; letter-spacing: .1em; color: var(--faint);
}
.hero-frame video, .hero-frame img { width: 100%; height: 100%; object-fit: cover; }
.hero-credit { max-width: var(--wrap-wide); margin: 14px auto 0; text-align: right; }
.hero-credit a { text-decoration: underline; text-underline-offset: 3px; }

/* ═════════ THESIS ═════════ */
.thesis p {
  font-size: clamp(20px, 1.75vw, 25px); font-weight: 600;
  line-height: 1.5; letter-spacing: -0.01em; max-width: 62ch; margin-top: 12px;
}
.thesis .card { padding: 36px 40px; }
@media (max-width: 640px) { .thesis .card { padding: 24px; } }

/* ═════════ STEP GRID ═════════ */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
@media (max-width: 860px) { .grid-2 { grid-template-columns: 1fr; } }
.idx { font-size: 12px; font-weight: 500; letter-spacing: 0.16em; color: var(--faint); font-variant-numeric: tabular-nums; }
.card h3 { margin-top: 12px; }
.card .body { margin-top: 12px; }

/* ═════════ PROPERTY LADDER ═════════ */
.ladder { display: grid; gap: 0; margin-top: 8px; }
.lrow {
  display: grid; grid-template-columns: 190px minmax(0, 1fr) 64px;
  align-items: center; gap: 20px;
  padding-block: 20px; border-top: 1px solid var(--line);
}
.lrow:last-child { border-bottom: 1px solid var(--line); }
.lname { font-size: 14px; }
.lname .u { display: block; font-size: 12px; color: var(--faint); margin-top: 2px; }
.ltrack { position: relative; height: 34px; }
.ltrack::before {
  content: ""; position: absolute; left: 0; right: 0; top: 50%;
  height: 1px; background: var(--line);
}
.ldec { position: absolute; top: 4px; bottom: 4px; width: 1px; background: rgba(14,14,16,.06); left: var(--x); }
.ldec b { position: absolute; top: 100%; left: 50%; transform: translateX(-50%); font-size: 10px; font-weight: 400; color: var(--faint); }
.lspan { position: absolute; top: 50%; height: 2px; background: rgba(14,14,16,.12); left: var(--a); width: var(--w); transform: translateY(-50%); }
.ldot {
  position: absolute; top: 50%; left: var(--x); transform: translate(-50%, -50%);
  width: 8px; height: 8px; border-radius: var(--r);
  border: 1.5px solid rgba(14,14,16,.38); background: #fff;
}
.ldot--dia { width: 12px; height: 12px; background: var(--ink); border-color: var(--ink); }
.ldot--sic { border-color: var(--steel); }
.ldot b {
  position: absolute; bottom: 15px; left: 50%; transform: translateX(-50%);
  font-size: 12px; font-weight: 500; font-variant-numeric: tabular-nums;
  white-space: nowrap; color: var(--ink);
}
.lmult { text-align: right; font-size: 14px; font-weight: 500; font-variant-numeric: tabular-nums; }
.legend { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 22px; font-size: 13px; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 8px; }
.legend i { width: 8px; height: 8px; border-radius: var(--r); border: 1.5px solid rgba(14,14,16,.38); background: #fff; }
.legend i.dia { width: 11px; height: 11px; background: var(--ink); border-color: var(--ink); }
.legend i.sic { border-color: var(--steel); }

@media (max-width: 760px) {
  .lrow { grid-template-columns: 1fr; gap: 10px; padding-block: 22px; }
  .lname .u { display: inline; margin-left: 6px; }
  .lmult { text-align: left; }
  .ltrack { height: 40px; }
}

/* the comparison table lives in the same card, under a rule */
.tbl-sep { margin-top: 32px; padding-top: 32px; border-top: 1px solid var(--line); }
.tbl-scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; min-width: 560px; }
th, td { font-size: 14px; text-align: right; padding: 11px 12px; font-variant-numeric: tabular-nums; }
th:first-child, td:first-child { text-align: left; padding-left: 0; }
th:last-child, td:last-child { padding-right: 0; }
thead th { font-weight: 500; color: var(--faint); font-size: 13px; border-bottom: 1px solid var(--line); }
tbody td { border-bottom: 1px solid var(--line); color: var(--muted); }
tbody tr:last-child td { border-bottom: 0; }
td.dia, th.dia { color: var(--ink); font-weight: 500; }
td .u { color: var(--faint); font-size: 12px; }

/* ═════════ APPLICATION ROWS ═════════ */
.apps { display: grid; gap: 24px; }
.app {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 40px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 32px;
  transition: box-shadow .3s var(--ease-io), transform .2s var(--ease-io);
}
.app:hover { transform: translateY(-1px); }
.app h3 { margin-top: 12px; }
.app .body { margin-top: 12px; }
.app .tlink { margin-top: 24px; }
.app .media { aspect-ratio: 4 / 3; }
@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; gap: 24px; padding: 22px; }
  .app .media { order: -1; aspect-ratio: 16 / 9; }
}

/* ═════════ MATERIALS LIST ═════════ */
.mat-list { border-top: 1px solid var(--line); }
.mat-item {
  width: 100%; display: grid; grid-template-columns: 44px 1fr auto;
  align-items: baseline; gap: 20px; text-align: left;
  padding: 22px 12px; background: none; border: 0; border-bottom: 1px solid var(--line);
  cursor: pointer; transition: background .2s var(--ease-io);
}
.mat-item:hover { background: var(--fill); }
.mi-idx { font-size: 12px; font-weight: 500; letter-spacing: 0.16em; color: var(--faint); font-variant-numeric: tabular-nums; }
.mi-name { font-size: 18px; font-weight: 500; letter-spacing: -0.01em; }
.mi-desc { font-size: 16px; color: var(--muted); }
.mi-arrow { color: var(--faint); transition: transform .2s var(--ease-io); }
.mat-item:hover .mi-arrow { transform: translateX(3px); color: var(--ink); }
@media (max-width: 760px) {
  .mat-item { grid-template-columns: 32px 1fr; row-gap: 6px; }
  .mi-desc { grid-column: 2; }
  .mi-arrow { display: none; }
}

/* ═════════ Q&A ═════════ */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 24px 0;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 24px;
  font-size: 18px; font-weight: 500;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; flex: none; font-size: 20px; font-weight: 400; line-height: 1;
  color: var(--faint); transition: transform .25s var(--ease-io);
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { padding-bottom: 24px; font-size: 16px; line-height: 1.6; color: var(--muted); max-width: 62ch; }

/* ═════════ CONTACT ═════════ */
.cta-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden;
}
.cta-body { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 32px; padding: 48px 56px; align-items: start; }
.cta-body .body { margin-top: 16px; }
.cta-rail { display: grid; gap: 10px; }
.cta-rail .btn { justify-content: center; width: 100%; }
.cta-foot { background: var(--fill); border-top: 1px solid var(--line); padding: 26px 56px; }
.wl { display: grid; grid-template-columns: 1fr auto; gap: 10px; max-width: 520px; }
.wl input {
  border: 1px solid var(--line); border-radius: var(--r); background: #fff;
  padding: 11px 18px; font-size: 15px; min-height: 44px;
  transition: border-color .2s var(--ease-io);
}
.wl input::placeholder { color: var(--faint); }
.wl input:focus { border-color: rgba(14,14,16,.3); }
.wl input.bad { border-color: var(--bad); }
.wl__msg { margin-top: 10px; font-size: 13px; color: var(--muted); min-height: 18px; }
.wl__msg.bad { color: var(--bad); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.cta-foot .note { margin-top: 10px; }
.cta-foot a { text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 860px) {
  .cta-body { grid-template-columns: 1fr; padding: 32px 24px; }
  .cta-foot { padding: 24px; }
  .wl { grid-template-columns: 1fr; }
  .wl .btn { justify-content: center; }
}

/* ═════════ SOURCES ═════════ */
.src { border-top: 1px solid var(--line); }
.src summary {
  list-style: none; cursor: pointer; padding: 18px 0;
  font-size: 13px; font-weight: 500; color: var(--muted);
  display: flex; justify-content: space-between; gap: 16px;
}
.src summary::-webkit-details-marker { display: none; }
.src summary::after { content: "+"; color: var(--faint); transition: transform .25s var(--ease-io); }
.src details[open] summary::after { transform: rotate(45deg); }
.src ol { padding-bottom: 18px; display: grid; gap: 9px; }
.src li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; font-size: 12px; line-height: 1.55; color: var(--faint); }
.src a { text-decoration: underline; text-underline-offset: 3px; }
.src details { border-bottom: 1px solid var(--line); }

/* ═════════ FOOTER ═════════ */
footer { padding: 64px var(--pad) 40px; border-top: 1px solid var(--line); }
.foot-top { display: flex; justify-content: space-between; align-items: flex-end; gap: 48px; flex-wrap: wrap; }
.foot-top h2 { font-size: clamp(26px, 2.5vw, 36px); line-height: 1.1; max-width: 16ch; }
.foot-cols { display: flex; gap: 56px; flex-wrap: wrap; }
.foot-col h4 { font-size: 12px; font-weight: 500; letter-spacing: 0.16em; color: var(--faint); margin-bottom: 16px; }
.foot-col a { display: block; font-size: 14px; color: var(--muted); margin-bottom: 10px; text-decoration-color: rgba(14,14,16,.2); text-underline-offset: 4px; }
.foot-col a:hover { color: var(--ink); }
.foot-bottom {
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-size: 13px; color: var(--faint);
}

/* ═════════ LEGAL PAGES ═════════ */
.legal { max-width: var(--wrap-read); margin-inline: auto; padding: 148px var(--pad) 96px; }
.legal h1 { margin-bottom: 10px; }
.legal__date { font-size: 13px; color: var(--faint); margin-bottom: 44px; }
.legal h2 { font-size: 21px; margin: 40px 0 14px; padding-top: 26px; border-top: 1px solid var(--line); }
.legal p, .legal li { font-size: 16px; line-height: 1.65; color: var(--muted); }
.legal p + p { margin-top: 12px; }
.legal ul, .legal ol { margin-top: 12px; display: grid; gap: 10px; }
.legal ul + p, .legal ol + p { margin-top: 16px; }
.legal li { padding-left: 18px; position: relative; }
.legal li::before { content: ""; position: absolute; left: 0; top: 12px; width: 7px; height: 1px; background: var(--faint); }
.legal a { text-decoration: underline; text-underline-offset: 3px; }

/* ═════════ MODAL ═════════ */
.modal {
  position: fixed; inset: 0; z-index: 400; display: flex; visibility: hidden;
  pointer-events: none; align-items: center; justify-content: center;
  padding: clamp(16px, 3vw, 48px); transition: visibility .5s;
}
.modal.open { visibility: visible; pointer-events: auto; transition-delay: 0s; }
.modal-back { position: absolute; inset: 0; background: rgba(14,14,16,.45); opacity: 0; transition: opacity .4s; touch-action: none; }
.modal.open .modal-back { opacity: 1; }
.modal-panel {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--r);
  width: min(940px, 100%); max-height: min(88vh, 100dvh - 32px);
  overflow: auto; overscroll-behavior: contain;
  display: grid; grid-template-columns: 1fr 1.1fr;
  opacity: 0; transform: translateY(20px) scale(.98);
  transition: opacity .45s var(--ease-out), transform .45s var(--ease-out);
}
.modal.open .modal-panel { opacity: 1; transform: none; }
@media (max-width: 820px) { .modal-panel { grid-template-columns: 1fr; max-height: 92vh; } }
.m-left { position: relative; background: var(--fill); min-height: 320px; }
.m-left img, .m-left video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.m-right { padding: clamp(26px, 3vw, 40px); }
.m-right .idx { color: var(--steel); }
.m-right h3 { margin-top: 10px; font-size: clamp(21px, 2vw, 28px); }
.m-sub { margin-top: 12px; font-size: 16px; line-height: 1.6; color: var(--muted); max-width: 52ch; }
.m-specs { margin-top: 26px; border-top: 1px solid var(--line); }
.m-specs-head { font-size: 12px; font-weight: 500; letter-spacing: .16em; color: var(--faint); padding: 14px 0 4px; }
.m-row { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.m-row .k { font-size: 13px; color: var(--muted); }
.m-row .val { font-size: 13px; color: var(--ink); text-align: right; }
.m-note { margin-top: 18px; font-size: 12px; line-height: 1.6; color: var(--faint); }
.m-close {
  position: absolute; top: 14px; right: 14px; width: 36px; height: 36px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r); cursor: pointer;
  display: flex; align-items: center; justify-content: center; font-size: 17px; z-index: 2;
  transition: background .2s var(--ease-io);
}
.m-close:hover { background: var(--fill); }

/* ═════════ MOTION ═════════
   One entrance preset. One hover physics. Nothing bespoke. */
.rv { opacity: 0; filter: blur(6px); transform: translateY(20px); }
.rv.in {
  opacity: 1; filter: none; transform: none;
  transition: opacity .6s var(--ease-out), filter .6s var(--ease-out), transform .6s var(--ease-out);
}
.bar { position: fixed; top: 0; left: 0; right: 0; height: 2px; background: rgba(14,14,16,.25); transform: scaleX(0); transform-origin: left; z-index: 200; }


/* ═════════ INTRO CURTAIN ═════════ */
#intro {
  position: fixed; inset: 0; z-index: 999;
  background: #f7f6f3;
  background-image:
    linear-gradient(to right, rgba(20,20,15,.014) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20,20,15,.014) 1px, transparent 1px),
    radial-gradient(90% 60% at 50% -12%, rgba(74,128,171,.045) 0%, rgba(74,128,171,0) 72%);
  background-size: 120px 120px, 120px 120px, 100% 100%;
  background-attachment: fixed, fixed, fixed;
  display: grid; place-items: center;
  transition: opacity .8s var(--ease-out);
}
#intro.gone { opacity: 0; pointer-events: none; }
#intro-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
#intro-word {
  position: absolute; left: 0; right: 0; bottom: 12%;
  text-align: center; font-size: 15px; font-weight: 500;
  letter-spacing: 0.16em; color: var(--muted); opacity: 0;
  will-change: opacity, transform;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  #intro { display: none; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .rv { opacity: 1 !important; filter: none !important; transform: none !important; }
}


/* ═════════ PRODUCT LINES ═════════ */
.lines { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--line); }
.line { padding: 40px 40px 40px 0; }
.line + .line { padding-left: 40px; border-left: 1px solid var(--line); }
.line h3 { margin-top: 14px; }
.line p { margin-top: 14px; font-size: 16px; line-height: 1.6; color: var(--muted); max-width: 46ch; }
.line .tlink { margin-top: 22px; }
@media (max-width: 860px) {
  .lines { grid-template-columns: 1fr; }
  .line { padding: 32px 0; }
  .line + .line { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
}

/* ═════════ MECHANISM ═════════ */
.mech { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line); }
.mech li { padding: 32px 32px 32px 0; }
.mech li + li { padding-left: 32px; border-left: 1px solid var(--line); }
.mech h3 { font-size: 18px; margin-top: 14px; }
.mech p { margin-top: 10px; font-size: 15px; line-height: 1.6; color: var(--muted); }
@media (max-width: 860px) {
  .mech { grid-template-columns: 1fr; }
  .mech li { padding: 26px 0; }
  .mech li + li { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
}

/* ═════════ APPLICATION STRIP ═════════ */
.strip { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.strip figure { background: #fff; }
.strip .media { aspect-ratio: 4 / 5; border-radius: 0; }
.strip figcaption { padding: 14px 16px; font-size: 13px; color: var(--muted); }
@media (max-width: 900px) { .strip { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .strip { grid-template-columns: 1fr; } .strip .media { aspect-ratio: 16 / 9; } }