/* Fonts are self-hosted local woff2, tight-subset to the glyphs this page
   actually uses. Weights are declared only where a cut exists; the browser
   must never synthesise a project face.

   font-display:block on the two cuts the first screen paints (Vazirmatn 400
   text, 700 headline). Everything else is swap: below the fold nobody watches
   it arrive, and every era change is gated on readiness anyway. This site's
   product IS the typeface, so the hero waits blank for a beat rather than
   appearing in the wrong face. */
@font-face {
  font-family: "Vazirmatn";
  src: url("../fonts/vazirmatn-300.woff2") format("woff2");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Vazirmatn";
  src: url("../fonts/vazirmatn-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: block;
}
@font-face {
  font-family: "Vazirmatn";
  src: url("../fonts/vazirmatn-700.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: block;
}
/* Ario Dots 1 is a single-cut family: one file declared at 400 and 700 so no
   weight is synthesised. */
@font-face {
  font-family: "Ario";
  src: url("../fonts/ario-dots1-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Ario";
  src: url("../fonts/ario-dots1-400.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Estedad";
  src: url("../fonts/estedad-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Estedad";
  src: url("../fonts/estedad-800.woff2") format("woff2");
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}
/* Rooyin Free — SIL OFL 1.1, Fontiran. Licence: fonts/OFL-Rooyin.txt */
@font-face {
  font-family: "Rooyin";
  src: url("../fonts/rooyin-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Rooyin";
  src: url("../fonts/rooyin-700.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
:root {
  --bg: #fff;
  --fg: #111;
  --muted: #666;
  --panel: #fff;
  --line: #ccc;
  --radius: 0;
  --font-display: system-ui, "Segoe UI", Tahoma, sans-serif;
  --font-text: system-ui, "Segoe UI", Tahoma, sans-serif;
  --accent: #111;
  --shadow: none;
  --border: 1px solid var(--line);
  /* --thread is the site's own colour phase: it belongs to no era. Locked
     token; reserved, not currently painted by any element. */
  --thread: #c9a227;
}
html[data-era="1"] {
  --bg: #fff;
  --fg: #111;
  --muted: #666;
  --panel: #fff;
  --line: #ccc;
  --radius: 0;
  --font-display: "Vazirmatn", "Segoe UI", Tahoma, sans-serif;
  --font-text: "Vazirmatn", "Segoe UI", Tahoma, sans-serif;
  --accent: #111;
  --shadow: none;
  --border: 1px solid var(--line);
}
/* era 01 · minimalism — every value below mirrors eras/01-minimalism/preview.html */
html[data-era="1"] .hero h1 {
  font-weight: 700;
}
html[data-era="1"] .m-thesis {
  font-weight: 300;
}
html[data-era="1"] .m-label {
  font-weight: 400;
}
html[data-era="1"] .mat {
  background: transparent;
  border: 1px solid var(--fg);
  border-radius: 0;
  box-shadow: none;
}
html[data-era="1"] .m-spec {
  font-weight: 300;
}
html[data-era="1"] .fit-claim {
  font-weight: 700;
}
html[data-era="1"] .fgrid .fbrand {
  font-weight: 400;
}
html[data-era="1"] .rail button:disabled,
html[data-era="1"] .fit-next:disabled {
  color: var(--muted);
  cursor: not-allowed;
  border-style: dashed;
  background: var(--panel);
}
html[data-era="1"] .link {
  position: relative;
  text-decoration: none;
  --draw-origin: 100% 50%;
  --retract-origin: 0 50%;
}
html[data-era="1"] .contact-actions .link {
  --draw-origin: 0 50%;
  --retract-origin: 100% 50%;
}
html[data-era="1"] .link::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: -3px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: var(--draw-origin);
  transition: transform 150ms cubic-bezier(0.2, 0.7, 0.3, 1);
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="1"] .link:hover::after {
    transform: scaleX(1);
  }
}
html[data-era="1"] .link:focus-visible::after {
  transform: scaleX(1);
}
html[data-era="1"] .link:active::after {
  transform: scaleX(0);
  transform-origin: var(--retract-origin);
  transition-duration: 90ms;
}
html[data-era="1"] .link:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 2px;
}
html[data-era="1"] .fgrid a.link {
  width: fit-content;
}
html[data-era="1"] .fit-arrow {
  display: inline-block;
  transition: transform 160ms cubic-bezier(0.2, 0.7, 0.3, 1);
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="1"] .fit-next:hover .fit-arrow {
    transform: translateX(-4px);
  }
}
html[data-era="1"] .fit-next:active .fit-arrow {
  transform: translateX(-6px);
  transition-duration: 90ms;
}
html[data-era="1"] .fit-next:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 2px;
}
html[data-era="2"] {
  --bg: #f2efe9;
  --fg: #111;
  --muted: #333;
  --panel: #ffde00;
  --line: #111;
  --radius: 0;
  --font-display: "Ario", system-ui, "Segoe UI", Tahoma, sans-serif;
  --font-text: "Ario", system-ui, "Segoe UI", Tahoma, sans-serif;
  --accent: #ff0055;
  --accent-text: #c4003f;
  --shadow: 6px 6px 0 #111;
  --border: 1px solid #111;
}
/* era 02 · brutalism — every value below mirrors eras/02-brutalism/preview.html */
html[data-era="2"] a:focus-visible,
html[data-era="2"] button:focus-visible {
  outline: 3px solid var(--fg);
  outline-offset: 2px;
}
html[data-era="2"] .hero h1 {
  color: #000;
}
html[data-era="2"] .hero h1 .h1-primary {
  color: var(--fg);
  background: var(--panel);
  padding: 0 0.08em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}
html[data-era="2"] .hero h1 .h1-accent {
  color: var(--accent);
}
html[data-era="2"] .m-thesis {
  font-weight: 700;
}
html[data-era="2"] .m-label {
  font-weight: 700;
}
html[data-era="2"] .fit-claim {
  font-weight: 700;
}
html[data-era="2"] .fgrid .fbrand {
  font-weight: 700;
}
html[data-era="2"] .fgrid .fbrand {
  font-weight: 700;
}
html[data-era="2"] .about .wrap {
  grid-template-columns: minmax(0, min(60ch, calc(100% - 272px))) minmax(
      240px,
      1fr
    );
}
html[data-era="2"] .brand .logo[data-for="2"] {
  display: flex;
  align-items: center;
  justify-content: center;
  direction: ltr;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
}
html[data-era="2"] .logo-s {
  color: var(--fg);
}
html[data-era="2"] .logo-t {
  color: var(--accent);
}
html[data-era="2"] .fit-next {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
html[data-era="2"] .fit-next::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--accent);
  transform: translateX(-101%);
  transition: transform 180ms cubic-bezier(0.2, 0.7, 0.3, 1);
  z-index: -1;
  will-change: transform;
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="2"] .fit-next:hover::before {
    transform: translateX(0);
  }
}
html[data-era="2"] .fit-next:focus-visible::before,
html[data-era="2"] .fit-next:active::before {
  transform: translateX(0);
}
html[data-era="2"] .contact-actions a.ltr {
  text-decoration: none;
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="2"] .contact-actions a.ltr:hover,
  html[data-era="2"] .fgrid a.ltr:hover {
    color: var(--accent-text);
  }
}
html[data-era="2"] .contact-actions a.ltr:focus-visible,
html[data-era="2"] .fgrid a.ltr:focus-visible {
  color: var(--accent-text);
}
html[data-era="2"] .era-block[data-for="2"].entrance-ready .m-card {
  transform: translateY(16px);
}
html[data-era="2"] .era-block[data-for="2"].entrance-ready.is-revealed .m-card {
  transform: none;
  animation: bru-card-in 675ms cubic-bezier(0.2, 0.7, 0.3, 1) both;
}
html[data-era="2"]
  .era-block[data-for="2"].entrance-ready.is-revealed
  .m-card:nth-child(2) {
  animation-delay: 202.5ms;
}
html[data-era="2"]
  .era-block[data-for="2"].entrance-ready.is-revealed
  .m-card:nth-child(3) {
  animation-delay: 405ms;
}
@keyframes bru-card-in {
  from {
    transform: translateY(16px);
  }
  to {
    transform: none;
  }
}
html[data-era="3"] {
  --bg: #efe4d2;
  --fg: #3a2c21;
  --muted: #6b5947;
  --panel: #fffaf0;
  --line: #b9a58a;
  --radius: 16px;
  --font-display: "Vazirmatn", "Segoe UI", Tahoma, sans-serif;
  --font-text: "Vazirmatn", "Segoe UI", Tahoma, sans-serif;
  --accent: #8a5a2b;
  --shadow: inset 0 1px 0 #fff, 0 2px 8px rgba(0, 0, 0, 0.15);
  --border: 1px solid #b9a58a;
  --mat-face: #fffaf0;
  --mat-face-top: #fffdf7;
  --mat-face-deep: #f3e4cb;
  --mat-edge: #b9a58a;
  --mat-edge-dark: #8f7558;
  --mat-key: rgba(255, 252, 244, 0.92);
  --mat-key-soft: rgba(255, 252, 244, 0.52);
  --radius-control: 12px;
  --radius-card: 16px;
  --bevel-raised:
    inset 0 1px 0 var(--mat-key), inset 0 -1px 0 rgba(90, 62, 36, 0.18),
    0 1px 0 rgba(255, 250, 240, 0.55), 0 2px 3px rgba(64, 40, 20, 0.18),
    0 7px 14px rgba(64, 40, 20, 0.1);
  --bevel-raised-lit:
    inset 0 1px 0 rgba(255, 252, 244, 0.98),
    inset 0 -1px 0 rgba(90, 62, 36, 0.16), 0 1px 0 rgba(255, 250, 240, 0.62),
    0 3px 5px rgba(64, 40, 20, 0.2), 0 10px 18px rgba(64, 40, 20, 0.11);
  --bevel-pressed:
    inset 0 2px 3px rgba(64, 40, 20, 0.28),
    inset 0 -1px 0 rgba(255, 252, 244, 0.48), 0 1px 0 rgba(255, 250, 240, 0.32);
  --bevel-well:
    inset 0 2px 4px rgba(64, 40, 20, 0.22),
    inset 0 -1px 0 rgba(255, 252, 244, 0.5), 0 1px 0 rgba(255, 250, 240, 0.32);
  --bevel-card:
    inset 0 1px 0 var(--mat-key), inset 0 -1px 0 rgba(90, 62, 36, 0.16),
    0 1px 0 rgba(255, 250, 240, 0.55), 0 3px 5px rgba(64, 40, 20, 0.16),
    0 12px 24px rgba(64, 40, 20, 0.09);
}
/* era 03 · skeuomorphism — every value below mirrors eras/03-skeuomorphism/preview.html */
html[data-era="3"] a:focus-visible,
html[data-era="3"] button:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 2px;
}
html[data-era="3"] .logo {
  filter: brightness(1) drop-shadow(0 1px 1px rgba(58, 38, 20, 0.3))
    drop-shadow(0 2px 3px rgba(58, 38, 20, 0.14));
  transition: filter 150ms ease;
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="3"] .brand:hover .logo {
    filter: brightness(1.04) drop-shadow(0 1px 1px rgba(58, 38, 20, 0.3))
      drop-shadow(0 2px 3px rgba(58, 38, 20, 0.14));
  }
}
html[data-era="3"] .hero h1 {
  font-family: var(--font-display);
  font-size: 38px;
  line-height: 1.3;
  font-weight: 700;
}
html[data-era="3"] .hero h1,
html[data-era="3"] .m-thesis,
html[data-era="3"] .fit-claim,
html[data-era="3"] .m-spec,
html[data-era="3"] .about h2,
html[data-era="3"] .contact h2 {
  text-shadow:
    0 -1px 0 rgba(58, 44, 33, 0.2),
    0 1px 1px rgba(255, 255, 255, 0.7);
}
html[data-era="3"] .hero h1 .h1-brass,
html[data-era="3"] .hero h1 .h1-copper {
  text-shadow:
    0 -1px 0 rgba(58, 44, 33, 0.22),
    0 1px 1px rgba(255, 250, 240, 0.45);
}
html[data-era="3"] .hero h1 .h1-brass {
  color: #8a5a2b;
}
html[data-era="3"] .hero h1 .h1-copper {
  color: #8c4a2c;
}
html[data-era="3"] .cta {
  border: 1px solid #6d451d;
  border-radius: var(--radius-control);
  background: linear-gradient(180deg, #9a6732 0%, #8a5a2b 48%, #7a4b20 100%);
  color: #fffaf0;
  text-shadow: 0 1px 0 rgba(45, 26, 10, 0.35);
  box-shadow:
    inset 0 1px 0 rgba(255, 245, 220, 0.48),
    inset 0 -1px 0 rgba(45, 26, 10, 0.5),
    0 1px 0 rgba(255, 250, 240, 0.42),
    0 3px 4px rgba(64, 40, 20, 0.22),
    0 8px 16px rgba(64, 40, 20, 0.12);
  transition:
    transform 150ms ease,
    box-shadow 150ms ease;
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="3"] .cta:hover {
    background: linear-gradient(180deg, #9a6732 0%, #8a5a2b 48%, #7a4b20 100%);
    color: #fffaf0;
    transform: translateY(-1px);
    box-shadow:
      inset 0 1px 0 rgba(255, 245, 220, 0.62),
      inset 0 -1px 0 rgba(45, 26, 10, 0.46),
      0 1px 0 rgba(255, 250, 240, 0.5),
      0 5px 8px rgba(64, 40, 20, 0.24),
      0 12px 22px rgba(64, 40, 20, 0.14);
  }
}
html[data-era="3"] .cta:active {
  transform: translateY(1px);
  box-shadow:
    inset 0 2px 4px rgba(45, 26, 10, 0.52),
    inset 0 -1px 0 rgba(255, 245, 220, 0.3),
    0 1px 0 rgba(255, 250, 240, 0.28),
    0 1px 2px rgba(64, 40, 20, 0.18);
}
html[data-era="3"] .rail button {
  position: relative;
  border: 1px solid var(--mat-edge);
  border-radius: var(--radius-control);
  background: linear-gradient(
    180deg,
    var(--mat-face-top) 0%,
    var(--mat-face) 54%,
    var(--mat-face-deep) 100%
  );
  box-shadow: var(--bevel-raised);
  transition:
    transform 150ms ease,
    box-shadow 150ms ease,
    border-color 150ms ease;
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="3"] .rail button:hover {
    transform: translateY(-1px);
    box-shadow: var(--bevel-raised-lit);
    border-color: #a98d68;
  }
}
html[data-era="3"] .rail button:active {
  transform: translateY(1px);
  box-shadow: var(--bevel-pressed);
}
html[data-era="3"] .rail button[aria-checked="true"] {
  border-color: var(--mat-edge-dark);
  background: linear-gradient(180deg, #f1e2c9 0%, #e8d5b7 55%, #dcc5a3 100%);
  color: var(--fg);
  font-weight: 700;
  box-shadow: var(--bevel-pressed);
  transform: translateY(1px);
}
html[data-era="3"] .m-card {
  position: relative;
  border: 1px solid var(--mat-edge);
  border-radius: var(--radius-card);
  background: linear-gradient(
    180deg,
    var(--mat-face-top) 0%,
    var(--mat-face) 52%,
    var(--mat-face-deep) 100%
  );
  box-shadow: var(--bevel-card);
}
html[data-era="3"] .m-label {
  font-weight: 700;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.6);
}
html[data-era="3"] .m-num {
  text-shadow: none;
}
html[data-era="3"] .m-demo {
  border: 1px solid rgba(143, 117, 88, 0.34);
  border-radius: 10px;
  background: linear-gradient(180deg, #f0e3cd 0%, #f8ecd9 55%, #fdf5e7 100%);
  box-shadow: var(--bevel-well);
}
html[data-era="3"] .mat {
  border: 1px solid #a98d68;
  border-radius: 10px;
  background: linear-gradient(145deg, #fffdf6 0%, #f6e8d1 55%, #e3cda9 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 252, 244, 0.9),
    inset 0 -1px 0 rgba(90, 62, 36, 0.18),
    0 1px 0 rgba(255, 250, 240, 0.45),
    0 2px 3px rgba(64, 40, 20, 0.18);
}
html[data-era="3"] .m-spec {
  font-family: var(--font-display);
  font-weight: 700;
}
html[data-era="3"] .dots i {
  background: radial-gradient(
    circle at 35% 28%,
    #b9824b 0 18%,
    #8a5a2b 55%,
    #6a431f 100%
  );
  box-shadow:
    inset 0 1px 0 rgba(255, 250, 240, 0.35),
    0 1px 1px rgba(64, 40, 20, 0.25);
}
html[data-era="3"] .m-cards {
  perspective: 1000px;
}
html[data-era="3"] .era-block[data-for="3"].entrance-ready .m-card {
  opacity: 0;
  transform: translateY(14px) translateZ(-24px) rotateX(7deg) scale(0.98);
  transform-origin: 50% 100%;
}
html[data-era="3"] .era-block[data-for="3"].entrance-ready.is-revealed .m-card {
  opacity: 1;
  transform: none;
  transition:
    opacity 630ms cubic-bezier(0.22, 0.61, 0.36, 1),
    transform 840ms cubic-bezier(0.22, 0.61, 0.36, 1);
}
html[data-era="3"]
  .era-block[data-for="3"].entrance-ready.is-revealed
  .m-card:nth-child(2) {
  transition-delay: 80ms;
}
html[data-era="3"]
  .era-block[data-for="3"].entrance-ready.is-revealed
  .m-card:nth-child(3) {
  transition-delay: 160ms;
}
html[data-era="3"] .fit-next {
  border: 1px solid var(--mat-edge);
  border-radius: var(--radius-control);
  background: linear-gradient(
    180deg,
    var(--mat-face-top) 0%,
    var(--mat-face) 54%,
    var(--mat-face-deep) 100%
  );
  box-shadow: var(--bevel-raised);
  transition:
    transform 150ms ease,
    box-shadow 150ms ease,
    border-color 150ms ease;
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="3"] .fit-next:hover {
    transform: translateY(-1px);
    box-shadow: var(--bevel-raised-lit);
    border-color: #a98d68;
  }
}
html[data-era="3"] .fit-next:active {
  transform: translateY(1px);
  box-shadow: var(--bevel-pressed);
}
html[data-era="3"] .fit-arrow {
  display: inline-block;
  transition: transform 150ms ease;
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="3"] .fit-next:hover .fit-arrow {
    transform: translateX(-2px);
  }
}
html[data-era="3"] .about h2,
html[data-era="3"] .contact h2 {
  font-family: var(--font-display);
  font-weight: 700;
}
html[data-era="3"] .stack div {
  border: 1px solid rgba(185, 165, 138, 0.6);
  border-radius: 10px;
  background: linear-gradient(180deg, #f8ecda 0%, #fffaf0 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 252, 244, 0.9),
    inset 0 -1px 0 rgba(90, 62, 36, 0.1);
}
html[data-era="3"] .band {
  position: relative;
  border: 1px solid #a98d68;
  border-radius: var(--radius-card);
  background: linear-gradient(
    180deg,
    var(--mat-face-top) 0%,
    var(--mat-face) 52%,
    var(--mat-face-deep) 100%
  );
  box-shadow: var(--bevel-card);
}
html[data-era="3"] .band::before {
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: 10px;
  border: 1px solid rgba(143, 117, 88, 0.16);
  box-shadow: inset 0 1px 0 rgba(255, 250, 240, 0.4);
  pointer-events: none;
}
html[data-era="4"] {
  --bg: #dfeaf5;
  --fg: #17324a;
  --muted: #40596e;
  --panel: rgba(255, 255, 255, 0.55);
  --line: rgba(255, 255, 255, 0.8);
  --radius: 14px;
  --font-display: "Estedad", "Segoe UI", Tahoma, sans-serif;
  --font-text: "Estedad", "Segoe UI", Tahoma, sans-serif;
  --accent: #3f7fa6;
  --accent-strong: #2f6a8f;
  --shadow: 0 8px 24px rgba(30, 70, 100, 0.12);
  --border: 1px solid rgba(255, 255, 255, 0.7);
}
/* era 04 · glassmorphism — every value below mirrors eras/04-glassmorphism/preview.html */
html[data-era="4"] a:focus-visible,
html[data-era="4"] button:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 2px;
}
html[data-era="4"] .hero h1 {
  font-family: var(--font-display);
  font-size: 38px;
  line-height: 1.3;
  font-weight: 800;
}
html[data-era="4"] .hero h1 .h1-accent {
  color: var(--accent-strong);
}
html[data-era="4"] .hero h1 .h1-primary {
  position: relative;
  isolation: isolate;
}
html[data-era="4"] .hero h1 .h1-primary::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset-inline: 0;
  bottom: 0.22em;
  height: 0.06em;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    var(--accent-strong),
    rgba(63, 127, 166, 0.4)
  );
}
html[data-era="4"] .m-thesis {
  font-family: var(--font-display);
  font-weight: 800;
}
html[data-era="4"] .m-label {
  font-family: var(--font-display);
  font-weight: 800;
}
html[data-era="4"] .m-num {
  font-family: var(--font-text);
  font-weight: 400;
}
html[data-era="4"] .mat {
  position: relative;
  overflow: hidden;
  width: 64px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.88);
  border-radius: 10px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.66) 0%,
    rgba(255, 255, 255, 0.32) 55%,
    rgba(223, 241, 250, 0.18) 100%
  );
  box-shadow:
    inset -1px -1px 0 rgba(63, 127, 166, 0.58),
    inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 8px 16px rgba(38, 75, 110, 0.14);
}
html[data-era="4"] .mat::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    rgba(255, 255, 255, 0) 38%,
    rgba(255, 255, 255, 0.5) 48%,
    rgba(255, 255, 255, 0) 58%
  );
}
html[data-era="4"] .m-spec {
  font-family: var(--font-display);
  font-weight: 800;
}
html[data-era="4"] .era-block[data-for="4"].entrance-ready .m-card {
  opacity: 0;
  transform: translateX(24px);
  transition:
    opacity 990ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 990ms cubic-bezier(0.16, 1, 0.3, 1);
}
html[data-era="4"]
  .era-block[data-for="4"].entrance-ready
  .m-card:nth-child(2) {
  transition-delay: 90ms;
}
html[data-era="4"]
  .era-block[data-for="4"].entrance-ready
  .m-card:nth-child(3) {
  transition-delay: 180ms;
}
html[data-era="4"] .era-block[data-for="4"].entrance-ready.is-revealed .m-card {
  opacity: 1;
  transform: none;
}
html[data-era="4"] .fit-next {
  border: 1px solid var(--accent);
  transition:
    background-color 180ms ease-out,
    color 180ms ease-out,
    border-color 180ms ease-out;
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="4"] .fit-next:hover {
    background: var(--accent-strong);
    border-color: var(--accent-strong);
    color: #fff;
  }
}
html[data-era="4"] .fit-next:focus-visible,
html[data-era="4"] .fit-next:active {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: #fff;
}
html[data-era="4"] .fit-arrow {
  display: inline-block;
  transition: transform 180ms cubic-bezier(0.2, 0.7, 0.3, 1);
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="4"] .fit-next:hover .fit-arrow {
    transform: translateX(-4px);
  }
}
html[data-era="4"] .fit-next:focus-visible .fit-arrow {
  transform: translateX(-4px);
}
html[data-era="4"] .fit-next:active .fit-arrow {
  transform: translateX(-6px);
  transition-duration: 110ms;
}
html[data-era="4"] .fit-claim {
  font-weight: 800;
}
html[data-era="4"] .about h2,
html[data-era="4"] .contact h2 {
  font-family: var(--font-display);
  font-weight: 800;
}
html[data-era="4"] .fgrid .fbrand {
  font-family: var(--font-display);
  font-weight: 800;
}
html[data-era="5"] {
  --bg: #0a0a16;
  --fg: #f2ecff;
  --muted: #b7a9d6;
  --panel: #151528;
  --line: #33335c;
  --radius: 4px;
  --font-display: "Rooyin", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --font-text: "Rooyin", system-ui, "Segoe UI", Tahoma, sans-serif;
  --accent: #ff3ea5;
  --shadow: 0 0 12px rgba(255, 62, 165, 0.55);
  --border: 1px solid #33335c;
}
/* era 05 · retrowave — every value below mirrors eras/05-retrowave/preview.html */
html[data-era="5"] .brand:focus-visible {
  outline: 2px solid #72e8ff;
  outline-offset: 2px;
}
html[data-era="5"] .hero h1 {
  font-family: var(--font-display);
  font-size: 35px;
  line-height: 1.3;
  font-weight: 400;
}
html[data-era="5"] .hero h1 .h1-accent {
  color: var(--accent);
  text-shadow:
    -1px 0 0 rgba(114, 232, 255, 0.55),
    1px 0 0 rgba(255, 122, 217, 0.4),
    0 0 12px rgba(255, 62, 165, 0.35);
}
@supports (background-clip: text) or (-webkit-background-clip: text) {
  html[data-era="5"] .hero h1 .h1-primary {
    background-image: linear-gradient(
      180deg,
      #72e8ff 0%,
      #f2ecff 38%,
      #ff3ea5 68%,
      #ff7ad9 100%
    );
    padding-block: 0.25em; /* keep Persian dots/descenders inside the clipped background */
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
  }
}
html[data-era="5"] .m-thesis {
  font-weight: 400;
}
html[data-era="5"] .m-label {
  font-weight: 400;
}
html[data-era="5"] .m-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}
html[data-era="5"] .m-card > * {
  position: relative;
  z-index: 1;
}
html[data-era="5"] .era-block[data-for="5"].entrance-ready .m-card {
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 1092ms cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 1092ms cubic-bezier(0.2, 0.8, 0.2, 1);
}
html[data-era="5"]
  .era-block[data-for="5"].entrance-ready
  .m-card:nth-child(2) {
  transition-delay: 90ms;
}
html[data-era="5"]
  .era-block[data-for="5"].entrance-ready
  .m-card:nth-child(3) {
  transition-delay: 180ms;
}
html[data-era="5"] .era-block[data-for="5"].entrance-ready.is-revealed .m-card {
  opacity: 1;
  transform: none;
}
html[data-era="5"] .era-block[data-for="5"].entrance-ready .m-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(90deg, #72e8ff, #f2ecff, #ff3ea5) bottom/100% 1px
    no-repeat;
  filter: drop-shadow(0 0 4px rgba(114, 232, 255, 0.45));
  opacity: 0;
  transform: translateY(-100%);
}
html[data-era="5"]
  .era-block[data-for="5"].entrance-ready.is-revealed
  .m-card::after {
  animation: retro-card-scan 936ms cubic-bezier(0.2, 0.7, 0.3, 1) 90ms both;
}
html[data-era="5"]
  .era-block[data-for="5"].entrance-ready.is-revealed
  .m-card:nth-child(2)::after {
  animation-delay: 225ms;
}
html[data-era="5"]
  .era-block[data-for="5"].entrance-ready.is-revealed
  .m-card:nth-child(3)::after {
  animation-delay: 360ms;
}
html[data-era="5"] .fit-next {
  position: relative;
  overflow: hidden;
  transition:
    border-color 180ms cubic-bezier(0.2, 0.7, 0.3, 1),
    box-shadow 180ms cubic-bezier(0.2, 0.7, 0.3, 1);
}
html[data-era="5"] .fit-next::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, #72e8ff, #f2ecff, #ff3ea5);
  transform: scaleX(0);
  transform-origin: 100% 50%;
  transition: transform 180ms cubic-bezier(0.2, 0.7, 0.3, 1);
  pointer-events: none;
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="5"] .fit-next:hover {
    border-color: var(--accent);
    box-shadow:
      0 0 0 1px rgba(255, 62, 165, 0.35),
      0 0 16px rgba(255, 62, 165, 0.25);
  }
}
html[data-era="5"] .fit-next:focus-visible {
  border-color: var(--accent);
  box-shadow:
    0 0 0 1px rgba(255, 62, 165, 0.35),
    0 0 16px rgba(255, 62, 165, 0.25);
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="5"] .fit-next:hover::after {
    transform: scaleX(1);
  }
}
html[data-era="5"] .fit-next:focus-visible::after,
html[data-era="5"] .fit-next:active::after {
  transform: scaleX(1);
}
html[data-era="5"] .fit-next:focus-visible {
  outline: 2px solid #72e8ff;
  outline-offset: 2px;
}
html[data-era="5"] .fit-next:active {
  box-shadow:
    0 0 0 1px rgba(255, 62, 165, 0.5),
    0 0 10px rgba(255, 62, 165, 0.2);
  transition-duration: 90ms;
}
html[data-era="5"] .fit-next:active::after {
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition-duration: 90ms;
}
html[data-era="5"] .fit-arrow {
  display: inline-block;
  color: var(--accent);
  transition:
    transform 160ms cubic-bezier(0.2, 0.7, 0.3, 1),
    color 160ms cubic-bezier(0.2, 0.7, 0.3, 1);
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="5"] .fit-next:hover .fit-arrow {
    transform: translateX(-3px);
    color: #72e8ff;
  }
}
html[data-era="5"] .fit-next:focus-visible .fit-arrow {
  transform: translateX(-3px);
  color: #72e8ff;
}
html[data-era="5"] .fit-next:active .fit-arrow {
  transform: translateX(-5px);
  transition-duration: 90ms;
}
html[data-era="5"] .fit-claim {
  font-weight: 400;
}
html[data-era="5"] .about h2,
html[data-era="5"] .contact h2 {
  font-weight: 400;
}
html[data-era="5"] .fgrid .fbrand {
  font-weight: 400;
}
* {
  box-sizing: border-box;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-text);
  font-size: 15px;
  line-height: 1.7;
  padding-inline-end: 80px;
}
h1,
h2,
h3,
h4,
p {
  margin: 0;
}
a {
  color: inherit;
}
.wrap {
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: 24px;
}
.identity {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: var(--border);
}
.brand {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  text-decoration: none;
  color: var(--fg);
} /* 36x36 visual box inside a 44x44 hit area; 8 px clear space is measured from the visual box, so keep >=4 px from the hit area to any neighbour. */
.logo {
  display: none;
  width: 36px;
  height: 36px;
  flex: none;
  box-sizing: border-box;
}
html[data-era="1"] .logo[data-for="1"],
html[data-era="2"] .logo[data-for="2"],
html[data-era="3"] .logo[data-for="3"],
html[data-era="4"] .logo[data-for="4"],
html[data-era="5"] .logo[data-for="5"] {
  display: block;
}
/* Each era's plate, weight, terminals and colour live in its own SVG. Do not
   rebuild these with CSS paint: the five SVGs are the drawings. */
.identity a {
  color: var(--fg);
  font-size: 13px;
}
.box {
  border: var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}
.hero {
  position: relative;
  min-height: 640px;
  padding-block: 40px;
  border-bottom: var(--border);
}
.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 440px);
  column-gap: 32px;
  row-gap: 0;
  align-items: center;
  padding-inline-end: 24px;
}
.hero-copy {
  grid-column: 1;
  grid-row: 1;
  align-self: end;
}
.hero-actions {
  grid-column: 1;
  grid-row: 2;
  align-self: start;
}
.hero .era-stage {
  grid-column: 2;
  grid-row: 1 / span 2;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: 38px;
  line-height: 1.3;
}
.hero p {
  color: var(--muted);
  margin-top: 12px;
  max-width: 46ch;
}
.hero-lede {
  display: none;
  min-height: 3.4em;
}
html[data-era="1"] .hero-lede[data-for="1"],
html[data-era="2"] .hero-lede[data-for="2"],
html[data-era="3"] .hero-lede[data-for="3"],
html[data-era="4"] .hero-lede[data-for="4"],
html[data-era="5"] .hero-lede[data-for="5"] {
  display: block;
}
.hero .cta-line {
  margin-top: 24px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 38ch;
}
.cta {
  display: inline-block;
  margin: 10px 0 6px;
  padding: 10px 18px;
  border: var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--fg);
  font: 14px/1.7 var(--font-text);
  text-decoration: none;
  box-shadow: var(--shadow);
  cursor: pointer;
}
@media (hover: hover) and (pointer: fine) {
  .cta:hover {
    background: var(--accent);
    color: var(--bg);
  }
}
.cta:focus-visible,
.cta:active {
  background: var(--accent);
  color: var(--bg);
}
.era-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 11/14;
  isolation: isolate;
}
.exhibit {
  display: none;
  position: absolute;
  inset: 0;
  overflow: hidden;
  direction: ltr;
}
html[data-era="1"] .exhibit[data-for="1"],
html[data-era="2"] .exhibit[data-for="2"],
html[data-era="3"] .exhibit[data-for="3"],
html[data-era="4"] .exhibit[data-for="4"],
html[data-era="5"] .exhibit[data-for="5"] {
  display: block;
}
.exhibit svg {
  display: block;
}
.ex-min {
  background: var(--bg);
  color: var(--fg);
}
.min-rule {
  position: absolute;
  display: block;
  background: currentColor;
  opacity: 0.22;
}
.min-rule.r-top {
  top: 9%;
  left: 8%;
  right: 8%;
  height: 1px;
}
.min-rule.r-side {
  top: 9%;
  bottom: 9%;
  left: 18%;
  width: 1px;
}
.min-rule.r-bottom {
  bottom: 9%;
  left: 18%;
  right: 8%;
  height: 1px;
}
.min-disc {
  position: absolute;
  top: 18%;
  right: 12%;
  width: 42%;
  aspect-ratio: 1;
  border: 1px solid currentColor;
  border-radius: 50%;
  opacity: 0.18;
}
.min-mark {
  position: absolute;
  width: 76%;
  left: 8%;
  top: 29%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.15;
}
.min-block {
  position: absolute;
  bottom: 15%;
  left: 18%;
  width: 12%;
  aspect-ratio: 1;
  background: currentColor;
  animation: min-breathe 7s ease-in-out infinite;
}
.ex-bru {
  background: #f2efe9;
  color: #111;
}
.bru-back {
  position: absolute;
  top: 12%;
  right: 9%;
  width: 64%;
  height: 33%;
  background: #ff0055;
  border: 3px solid #111;
  transform: rotate(4deg);
}
.bru-main {
  position: absolute;
  top: 25%;
  left: 10%;
  width: 72%;
  height: 42%;
  background: #ffde00;
  border: 3px solid #111;
  box-shadow: 12px 12px 0 #111;
  display: grid;
  place-items: center;
  transform: rotate(-3deg);
  animation: bru-jolt 3.4s steps(1, end) infinite;
}
.bru-main svg {
  width: 72%;
  fill: none;
  stroke: #111;
  stroke-width: 4.5;
}
.bru-strip {
  position: absolute;
  bottom: 15%;
  left: 14%;
  width: 70%;
  height: 16%;
  background: #fff;
  border: 3px solid #111;
  box-shadow: 7px 7px 0 #111;
  display: flex;
  align-items: center;
  gap: 6%;
  padding: 6%;
}
.bru-strip i {
  display: block;
  height: 12px;
  background: #111;
  flex: 1;
}
.bru-strip i:nth-child(2) {
  flex: 1.8;
  background: #ff0055;
}
.bru-dot {
  position: absolute;
  right: 8%;
  bottom: 7%;
  width: 13%;
  aspect-ratio: 1;
  border: 3px solid #111;
  border-radius: 50%;
  background: #f2efe9;
}
.ex-skeu {
  --sk-key: rgba(255, 250, 240, 0.9);
  --sk-shade: rgba(64, 40, 20, 0.38);
  --sk-fill: rgba(118, 144, 166, 0.16);
  --sk-engrave: rgba(58, 40, 24, 0.55);
  --sk-engrave-hi: rgba(255, 252, 244, 0.6);
}
.sk-device {
  --knob-one: 4;
  --knob-two: 6;
  position: absolute;
  inset: 9% 9% 10%;
  border: 1px solid #9a8060;
  border-radius: 26px;
  background: linear-gradient(145deg, #fff8ea 0%, #e4d2b5 45%, #bda17c 100%);
  box-shadow:
    inset 2px 2px 3px var(--sk-key),
    inset -3px -3px 7px rgba(79, 52, 29, 0.25),
    inset -7px -7px 16px var(--sk-fill),
    0 4px 6px rgba(58, 36, 18, 0.22),
    0 18px 28px rgba(75, 49, 26, 0.18);
}
.sk-device::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: repeating-linear-gradient(
    0deg,
    rgba(72, 48, 28, 0.035) 0 1px,
    transparent 1px 4px
  );
  opacity: 0.7;
  pointer-events: none;
}
.sk-device::after {
  content: "";
  position: absolute;
  inset: 4%;
  border-radius: 19px;
  border: 1px solid rgba(96, 70, 45, 0.26);
  box-shadow:
    inset 0 1px 0 var(--sk-engrave-hi),
    0 1px 0 rgba(255, 250, 240, 0.25);
  pointer-events: none;
}
.sk-screen {
  position: absolute;
  top: 10%;
  left: 10%;
  right: 10%;
  height: 32%;
  border: 5px solid #a68d6b;
  border-radius: 14px;
  background: linear-gradient(145deg, #493b30, #211b17);
  box-shadow:
    inset 0 4px 10px rgba(0, 0, 0, 0.8),
    inset 0 1px 0 rgba(255, 250, 240, 0.16),
    0 2px 0 var(--sk-key);
  display: grid;
  place-items: center;
  overflow: hidden;
  isolation: isolate;
}
.sk-screen::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 4;
  border-radius: 9px;
  background: linear-gradient(
    122deg,
    rgba(255, 250, 240, 0.16) 0 14%,
    transparent 30% 68%,
    rgba(150, 180, 200, 0.08) 86% 100%
  );
  pointer-events: none;
}
.sk-screen svg {
  position: relative;
  z-index: 1;
  width: 62%;
  fill: none;
  stroke: #e4c28c;
  stroke-width: 2.2;
  filter: drop-shadow(0 0 5px rgba(228, 194, 140, 0.28));
}
.sk-bloom {
  position: absolute;
  inset: 8% 12%;
  z-index: 0;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(228, 194, 140, 0.55),
    rgba(228, 194, 140, 0) 68%
  );
  opacity: calc(0.2 + var(--knob-one) * 0.075);
  transform: scale(calc(0.85 + var(--knob-one) * 0.025));
  animation: sk-glow 14s cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite;
  pointer-events: none;
}
.sk-scan {
  position: absolute;
  left: 6%;
  right: 6%;
  top: 0;
  height: 100%;
  z-index: 2;
  background: linear-gradient(
    180deg,
    transparent 0 46%,
    rgba(228, 194, 140, 0.2) 49% 52%,
    transparent 55% 100%
  );
  transform: translateY(calc((var(--knob-two) - 5) * 4%));
  animation: sk-scan 19s cubic-bezier(0.37, 0, 0.63, 1) -3s infinite;
  pointer-events: none;
}
.sk-screen-off {
  position: absolute;
  inset: 0;
  z-index: 3;
  border-radius: 9px;
  background: linear-gradient(145deg, #3a2f27, #191411);
  opacity: 0;
  transition: opacity 180ms ease;
  pointer-events: none;
}
.sk-power:not(:checked) ~ .sk-screen .sk-screen-off {
  opacity: 1;
}
.sk-power:not(:checked) ~ .sk-screen .sk-bloom,
.sk-power:not(:checked) ~ .sk-screen .sk-scan {
  animation-play-state: paused;
}
.sk-led-spill {
  position: absolute;
  top: 53.5%;
  left: 50%;
  width: 14%;
  height: 6%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(
    ellipse at 50% 40%,
    rgba(232, 162, 74, 0.38),
    rgba(232, 162, 74, 0.14) 45%,
    transparent 72%
  );
  filter: blur(2px);
  transition: opacity 180ms ease;
  pointer-events: none;
}
.sk-led {
  position: absolute;
  top: 47.5%;
  left: 50%;
  width: 5.4%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(
    circle at 42% 38%,
    #f5e5c8 0 8%,
    #b79a76 10% 55%,
    #7c6246 56% 72%,
    #4a3423 74% 100%
  );
  box-shadow:
    inset 0 2px 3px rgba(0, 0, 0, 0.65),
    0 1px 0 var(--sk-key),
    0 2px 6px rgba(60, 35, 15, 0.25);
  display: grid;
  place-items: center;
  z-index: 2;
}
.sk-led-core {
  position: relative;
  display: block;
  width: 64%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(
    circle at 35% 30%,
    #fff8dc 0 10%,
    #ffd98a 24%,
    #f0b45c 48%,
    #cf7f2c 70%,
    #8f4f15 100%
  );
  box-shadow:
    inset 2px -2px 3px rgba(120, 70, 25, 0.55),
    inset -1px 2px 2px rgba(255, 245, 210, 0.65),
    inset 3px -3px 5px rgba(150, 180, 200, 0.28),
    0 0 6px rgba(235, 160, 70, 0.55);
  transition: opacity 180ms ease;
}
.sk-led-core::after {
  content: "";
  position: absolute;
  top: 22%;
  left: 24%;
  width: 22%;
  height: 22%;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 2px rgba(255, 255, 255, 0.9);
}
.sk-power:not(:checked) ~ .sk-led .sk-led-core {
  opacity: 0.18;
}
.sk-power:not(:checked) ~ .sk-led-spill {
  opacity: 0;
}
.sk-knob {
  position: absolute;
  bottom: 16%;
  width: 27%;
  aspect-ratio: 1;
  border: 1px solid #7b6144;
  border-radius: 50%;
  pointer-events: none;
  transition: opacity 180ms ease;
  background:
    radial-gradient(
      circle at 34% 26%,
      rgba(255, 255, 255, 0.5) 0%,
      rgba(255, 255, 255, 0) 42%
    ),
    radial-gradient(
      circle closest-side,
      #fff7e8 0%,
      #f4e3c8 24%,
      #dcc3a0 44%,
      #c0a37b 58%,
      #9c7f5b 64%,
      #7a6044 67%,
      #6a5239 70%,
      #b79c76 73%,
      #d8c2a2 82%,
      #c3a883 90%,
      #927653 96%,
      #6f563c 100%
    );
  box-shadow:
    inset 0 2px 2px rgba(255, 250, 240, 0.75),
    inset -3px -4px 8px rgba(70, 45, 22, 0.45),
    inset 0 0 0 3px rgba(90, 65, 40, 0.18),
    inset 0 0 0 4px rgba(255, 250, 240, 0.16),
    inset -6px -8px 12px var(--sk-fill),
    0 8px 12px rgba(60, 38, 18, 0.32),
    0 2px 3px rgba(60, 38, 18, 0.28);
}
.sk-knob.k-one {
  left: 15%;
}
.sk-knob.k-two {
  right: 15%;
}
.sk-knob-ticks {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.sk-knob::after {
  content: "";
  position: absolute;
  top: 12%;
  left: 48%;
  width: 4%;
  height: 34%;
  border-radius: 4px;
  background: linear-gradient(90deg, #3f2c1c, #6b5138 55%, #3f2c1c);
  box-shadow: 1px 1px 0 rgba(255, 250, 240, 0.35);
  transform-origin: 50% 112%;
  transform: rotate(calc(-135deg + var(--knob-one) * 27deg));
}
.sk-knob.k-one::after {
  animation: sk-dial-one 14s cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite;
}
.sk-knob.k-two::after {
  transform: rotate(calc(-135deg + var(--knob-two) * 27deg));
  animation: sk-dial-two 19s cubic-bezier(0.37, 0, 0.63, 1) -3s infinite;
}
.sk-power:not(:checked) ~ .sk-knob {
  opacity: 0.6;
}
.sk-power:not(:checked) ~ .sk-knob::after {
  animation-play-state: paused;
}
.sk-toggle {
  position: absolute;
  bottom: 7%;
  left: 42%;
  width: 16%;
  height: 5%;
  border: 1px solid #80674c;
  border-radius: 9px;
  background: linear-gradient(180deg, #6b543d, #a68d6b);
  box-shadow:
    inset 0 2px 4px rgba(40, 25, 12, 0.7),
    0 1px 0 var(--sk-key);
  cursor: pointer;
  touch-action: manipulation;
}
.sk-toggle::before {
  content: "";
  position: absolute;
  top: 8%;
  bottom: 8%;
  left: 4%;
  width: 48%;
  border-radius: 6px;
  background: linear-gradient(
    145deg,
    #fff3da 0%,
    #d9bf98 45%,
    #b3936b 70%,
    #876c4b 100%
  );
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    0 1px 2px rgba(50, 30, 15, 0.55);
  transform: translateX(0);
  transition: transform 140ms cubic-bezier(0.2, 0.9, 0.3, 1.15);
}
.sk-power:checked ~ .sk-toggle::before {
  transform: translateX(92%);
}
.sk-toggle::after {
  content: "";
  position: absolute;
  left: 12%;
  top: 50%;
  width: 7%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(54, 36, 20, 0.55);
  box-shadow: 1px 1px 0 rgba(255, 250, 240, 0.35);
  transform: translateY(-50%);
  transition:
    background 140ms ease,
    box-shadow 140ms ease;
}
.sk-power:checked ~ .sk-toggle::after {
  background: #e8a24a;
  box-shadow:
    0 0 4px rgba(235, 160, 70, 0.8),
    1px 1px 0 rgba(255, 250, 240, 0.3);
}
.sk-power:focus-visible ~ .sk-toggle {
  outline: 2px solid var(--fg);
  outline-offset: 3px;
}
.sk-toggle-hit {
  position: absolute;
  left: 50%;
  top: 50%;
  width: calc(100% + 4px);
  min-height: 44px;
  transform: translate(-50%, -50%);
  background: transparent;
}
.sk-screw {
  position: absolute;
  width: 3.2%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(
    circle at 35% 30%,
    #fff6e6 0 12%,
    #e2cdae 40%,
    #b79a76 68%,
    #85694a 100%
  );
  box-shadow:
    inset 0 1px 1px rgba(255, 255, 255, 0.75),
    inset 0 -1px 2px rgba(50, 30, 15, 0.5),
    0 1px 1px rgba(60, 40, 20, 0.35),
    0 1px 0 rgba(255, 250, 240, 0.35);
}
.sk-screw::before {
  content: "";
  position: absolute;
  top: 48%;
  left: 18%;
  width: 64%;
  height: 1px;
  background: rgba(48, 30, 16, 0.65);
  box-shadow: 0 1px 0 rgba(255, 250, 240, 0.5);
  transform: rotate(-35deg);
}
.sk-screw.s-tr::before {
  transform: rotate(28deg);
}
.sk-screw.s-bl::before {
  transform: rotate(12deg);
}
.sk-screw.s-br::before {
  transform: rotate(-18deg);
}
.sk-screw.s-tl {
  top: 7%;
  left: 7%;
}
.sk-screw.s-tr {
  top: 7%;
  right: 7%;
}
.sk-screw.s-bl {
  bottom: 7%;
  left: 7%;
}
.sk-screw.s-br {
  bottom: 7%;
  right: 7%;
}
.ex-glass {
  background: transparent;
}
.gl-light {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.gl-light.l1 {
  width: 122%;
  aspect-ratio: 1;
  top: -18%;
  left: -32%;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(255, 185, 213, 0.82) 0%,
    rgba(199, 185, 255, 0.52) 34%,
    rgba(199, 185, 255, 0) 68%
  );
}
.gl-light.l2 {
  width: 130%;
  aspect-ratio: 1;
  right: -36%;
  bottom: -20%;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(141, 240, 225, 0.74) 0%,
    rgba(114, 169, 237, 0.46) 36%,
    rgba(114, 169, 237, 0) 70%
  );
}
.gl-light.l3 {
  width: 112%;
  aspect-ratio: 1;
  left: -4%;
  bottom: -34%;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(183, 215, 239, 0.66) 0%,
    rgba(183, 215, 239, 0) 64%
  );
}
.gl-card {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.16);
  box-shadow:
    0 24px 44px rgba(38, 75, 110, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    inset 0 -1px 0 rgba(255, 255, 255, 0.2);
  overflow: hidden;
}
.gl-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    140deg,
    rgba(255, 255, 255, 0.44) 0%,
    rgba(255, 255, 255, 0) 46%
  );
  pointer-events: none;
}
.gl-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow:
    inset 1px 0 0 rgba(255, 255, 255, 0.34),
    inset -1px 0 0 rgba(255, 255, 255, 0.14);
  pointer-events: none;
}
.gl-back {
  top: 11%;
  left: 9%;
  width: 72%;
  height: 31%;
  transform: rotate(-8deg);
  background: rgba(255, 255, 255, 0.13);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  animation: gl-drift-back 11s ease-in-out infinite;
}
.gl-mid {
  top: 25%;
  right: 12%;
  width: 66%;
  height: 28%;
  transform: rotate(2.5deg);
  background: rgba(255, 255, 255, 0.18);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  animation: gl-drift-mid 9s ease-in-out infinite;
}
.gl-front {
  top: 36%;
  right: 7%;
  width: 79%;
  height: 47%;
  transform: rotate(4deg);
  background: rgba(255, 255, 255, 0.24);
  -webkit-backdrop-filter: blur(9px);
  backdrop-filter: blur(9px);
  animation: gl-drift-front 7.5s ease-in-out infinite;
}
.gl-ghost {
  position: absolute;
  left: 12%;
  bottom: 24%;
  width: 46%;
  height: 8px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.36);
}
.gl-sheen {
  position: absolute;
  inset: -30% -40%;
  background: linear-gradient(
    105deg,
    rgba(255, 255, 255, 0) 38%,
    rgba(255, 255, 255, 0.32) 48%,
    rgba(255, 255, 255, 0) 58%
  );
  pointer-events: none;
}
.gl-head {
  position: absolute;
  top: 9%;
  left: 9%;
  right: 9%;
  display: flex;
  align-items: center;
  gap: 8px;
}
.gl-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(23, 50, 74, 0.55);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.32);
}
.gl-bar {
  width: 34%;
  height: 6px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.62);
}
.gl-ring {
  margin-left: auto;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1.5px solid rgba(23, 50, 74, 0.32);
}
.gl-mark {
  position: absolute;
  top: 24%;
  left: 9%;
  width: 34%;
  fill: none;
  stroke: #17324a;
  stroke-width: 2.2;
}
.gl-rows {
  position: absolute;
  top: 26%;
  right: 9%;
  width: 44%;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.gl-rows i {
  display: block;
  height: 7px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.68);
}
.gl-rows i:nth-child(2) {
  width: 76%;
}
.gl-rows i:nth-child(3) {
  width: 52%;
}
.gl-bars {
  position: absolute;
  left: 9%;
  right: 9%;
  bottom: 20%;
  height: 20%;
  display: flex;
  align-items: flex-end;
  gap: 6%;
}
.gl-bars i {
  flex: 1;
  border-radius: 6px 6px 2px 2px;
  background: linear-gradient(
    180deg,
    rgba(23, 50, 74, 0.34),
    rgba(23, 50, 74, 0.12)
  );
  transform-origin: bottom;
  animation: gl-bar-breathe 5.6s ease-in-out infinite;
}
.gl-bars i:nth-child(1) {
  height: 34%;
  --bar-min: 0.66;
  animation-duration: 4.3s;
  animation-delay: -0.7s;
}
.gl-bars i:nth-child(2) {
  height: 56%;
  --bar-min: 0.82;
  animation-duration: 5.4s;
  animation-delay: -2.3s;
}
.gl-bars i:nth-child(3) {
  height: 42%;
  --bar-min: 0.58;
  animation-duration: 6.7s;
  animation-delay: -4.1s;
}
.gl-bars i:nth-child(4) {
  height: 74%;
  --bar-min: 0.74;
  animation-duration: 4.9s;
  animation-delay: -1.6s;
}
.gl-bars i:nth-child(5) {
  height: 52%;
  --bar-min: 0.62;
  animation-duration: 6.1s;
  animation-delay: -3.4s;
}
.gl-bars i:nth-child(6) {
  height: 88%;
  --bar-min: 0.86;
  animation-duration: 7.3s;
  animation-delay: -5.2s;
}
.gl-pill {
  position: absolute;
  right: 9%;
  bottom: 9%;
  width: 24%;
  height: 9px;
  border-radius: 20px;
  background: rgba(23, 50, 74, 0.18);
}
.ex-glass::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 6;
  pointer-events: none;
  opacity: 0.055;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}
.exhibit.is-paused * {
  animation-play-state: paused !important;
}
.ex-retro {
  background: radial-gradient(
    circle at 50% 25%,
    #351046 0%,
    #141027 42%,
    #080814 78%
  );
}
/* Stage-contained bloom: fades to transparent before the stage edges, so the
   stage's overflow clip never cuts it into a rectangle on narrow frames. */
.ex-retro::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(
    ellipse 52% 40% at 50% 35%,
    rgba(255, 62, 165, 0.55) 0%,
    rgba(255, 62, 165, 0.32) 36%,
    rgba(255, 62, 165, 0.1) 66%,
    transparent 86%
  );
}
.retro-sun {
  position: absolute;
  top: 13%;
  left: 22%;
  width: 56%;
  aspect-ratio: 1;
  border-radius: 50%;
  overflow: hidden;
  background: linear-gradient(#ffd36a 0%, #ff8a7a 42%, #ff3ea5 100%);
  box-shadow:
    0 0 90px rgba(255, 62, 165, 0.84),
    0 0 186px rgba(255, 62, 165, 0.32);
}
.retro-sun::after {
  content: "";
  position: absolute;
  inset: 48% 0 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 10px,
    #171027 10px 14px
  );
}
.retro-grid {
  position: absolute;
  z-index: 1;
  left: -40%;
  right: -40%;
  bottom: -12%;
  height: 55%;
  background-image:
    linear-gradient(rgba(255, 62, 165, 0.58) 1px, transparent 1px),
    linear-gradient(90deg, rgba(80, 220, 255, 0.42) 1px, transparent 1px);
  background-size: 42px 30px;
  transform: perspective(260px) rotateX(58deg);
  transform-origin: center top;
}
.retro-mark {
  position: absolute;
  z-index: 2;
  top: 38%;
  left: 12%;
  width: 76%;
  fill: none;
  stroke: url(#retroChrome);
  stroke-width: 2.7;
  filter: drop-shadow(0 0 7px rgba(255, 62, 165, 0.65));
}
.retro-scan {
  position: absolute;
  z-index: 3;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 3px,
    rgba(255, 255, 255, 0.025) 3px 4px
  );
}
@keyframes min-breathe {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(0.82);
    opacity: 0.55;
  }
}
@keyframes bru-jolt {
  0%,
  88%,
  100% {
    transform: rotate(-3deg) translate(0, 0);
  }
  92% {
    transform: rotate(-3deg) translate(-3px, 2px);
  }
  96% {
    transform: rotate(-3deg) translate(2px, -1px);
  }
}
@keyframes sk-dial-one {
  0% {
    transform: rotate(-72deg);
  }
  22% {
    transform: rotate(54deg);
  }
  48% {
    transform: rotate(-12deg);
  }
  71% {
    transform: rotate(92deg);
  }
  100% {
    transform: rotate(-72deg);
  }
}
@keyframes sk-glow {
  0% {
    opacity: 0.28;
    transform: scale(0.88);
  }
  22% {
    opacity: 0.72;
    transform: scale(1.03);
  }
  48% {
    opacity: 0.4;
    transform: scale(0.93);
  }
  71% {
    opacity: 0.9;
    transform: scale(1.08);
  }
  100% {
    opacity: 0.28;
    transform: scale(0.88);
  }
}
@keyframes sk-dial-two {
  0% {
    transform: rotate(84deg);
  }
  17% {
    transform: rotate(-48deg);
  }
  39% {
    transform: rotate(18deg);
  }
  63% {
    transform: rotate(-92deg);
  }
  82% {
    transform: rotate(46deg);
  }
  100% {
    transform: rotate(84deg);
  }
}
@keyframes sk-scan {
  0% {
    transform: translateY(14%);
  }
  17% {
    transform: translateY(-16%);
  }
  39% {
    transform: translateY(4%);
  }
  63% {
    transform: translateY(-20%);
  }
  82% {
    transform: translateY(10%);
  }
  100% {
    transform: translateY(14%);
  }
}
@keyframes gl-drift-back {
  0%,
  100% {
    transform: rotate(-8deg) translate3d(0, 0, 0);
  }
  50% {
    transform: rotate(-8deg) translate3d(3px, -5px, 0);
  }
}
@keyframes gl-drift-mid {
  0%,
  100% {
    transform: rotate(2.5deg) translate3d(0, 0, 0);
  }
  50% {
    transform: rotate(2.5deg) translate3d(-4px, 4px, 0);
  }
}
@keyframes gl-drift-front {
  0%,
  100% {
    transform: rotate(4deg) translate3d(0, 0, 0);
  }
  50% {
    transform: rotate(4deg) translate3d(-2px, -8px, 0);
  }
}
@keyframes gl-bar-breathe {
  0%,
  100% {
    transform: scaleY(var(--bar-min, 0.78));
  }
  50% {
    transform: scaleY(1);
  }
}
@media (min-width: 1025px) {
  .retro-sun {
    animation: retro-shine 5s ease-in-out infinite;
  }
}
@keyframes retro-shine {
  0%,
  100% {
    box-shadow:
      0 0 90px rgba(255, 62, 165, 0.84),
      0 0 186px rgba(255, 62, 165, 0.32);
  }
  50% {
    box-shadow:
      0 0 114px rgba(255, 62, 165, 1),
      0 0 234px rgba(255, 62, 165, 0.72);
  }
}
@media (max-width: 1024px) {
  /* Desktop beam range and power on the small stages. A desktop-scale sun
     shadow would be cut by the stage clip, so the stage-contained bloom
     carries the reach and strength — wider and brighter than the desktop
     bloom, fading to zero exactly at the stage edge — while the rim shadow
     grows to the largest radius whose fade completes inside the clip. */
  .ex-retro::before {
    background: radial-gradient(
      ellipse 66% 44% at 50% 33%,
      rgba(255, 62, 165, 0.85) 0%,
      rgba(255, 62, 165, 0.56) 26%,
      rgba(255, 62, 165, 0.3) 50%,
      rgba(255, 62, 165, 0.1) 68%,
      rgba(255, 62, 165, 0) 78%
    );
    animation: retro-bloom 5s ease-in-out infinite;
  }
  .retro-sun {
    box-shadow:
      0 0 34px rgba(255, 62, 165, 0.8),
      0 0 68px rgba(255, 62, 165, 0.34);
  }
}
@keyframes retro-bloom {
  0%,
  100% {
    opacity: 0.8;
  }
  50% {
    opacity: 1;
  }
}
@keyframes retro-card-scan {
  0% {
    opacity: 0;
    transform: translateY(-100%);
  }
  12% {
    opacity: 0.8;
  }
  80% {
    opacity: 0.5;
  }
  100% {
    opacity: 0;
    transform: translateY(100%);
  }
}
.rail {
  position: fixed;
  inset-inline-end: 12px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.hero .rail-hint {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 38ch;
}
.rail button {
  width: 56px;
  height: 56px;
  border: var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--fg);
  font: 11px/1.15 var(--font-text);
  cursor: pointer;
  box-shadow: var(--shadow);
  padding: 2px;
  white-space: nowrap;
}
.rail button[aria-checked="true"] {
  background: var(--accent);
  color: var(--bg);
  border-width: 2px;
}
.manifesto {
  height: 304px;
  border-bottom: var(--border);
  padding-block: 28px;
  background: var(--bg);
}
.manifesto .wrap {
  width: 100%;
}
.era-block {
  display: none;
}
html[data-era="1"] .era-block[data-for="1"],
html[data-era="2"] .era-block[data-for="2"],
html[data-era="3"] .era-block[data-for="3"],
html[data-era="4"] .era-block[data-for="4"],
html[data-era="5"] .era-block[data-for="5"] {
  display: block;
}
.fit {
  height: 224px;
  border-bottom: var(--border);
  padding-block: 32px;
  background: var(--bg);
}
.fit-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.fit-eyebrow {
  font-size: 11px;
  color: var(--muted);
}
.fit-next {
  min-height: 32px;
  margin-block: -8px;
  padding: 4px 12px;
  border: var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--fg);
  font: 11px/1.2 var(--font-text);
  cursor: pointer;
  white-space: nowrap;
}
@media (hover: hover) and (pointer: fine) {
  html[data-era="1"] .fit-next:hover {
    background: var(--accent);
    color: var(--bg);
  }
}
html[data-era="1"] .fit-next:active {
  background: var(--accent);
  color: var(--bg);
}
.fit-block {
  display: none;
}
html[data-era="1"] .fit-block[data-for="1"],
html[data-era="2"] .fit-block[data-for="2"],
html[data-era="3"] .fit-block[data-for="3"],
html[data-era="4"] .fit-block[data-for="4"],
html[data-era="5"] .fit-block[data-for="5"] {
  display: block;
}
.fit-claim {
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--fg);
  max-inline-size: 840px;
}
.fit-body {
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
  max-inline-size: 600px;
  margin-top: 10px;
}
.m-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  min-height: 40px;
  margin-bottom: 16px;
}
.m-kicker {
  font-size: 11px;
  color: var(--muted);
}
.m-thesis {
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.35;
  font-weight: 700;
}
.m-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.m-card {
  height: 186px;
  border: var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.m-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
}
.m-num {
  font-size: 10px;
  color: var(--muted);
  font-weight: 400;
}
.m-demo {
  height: 70px;
  flex: none;
  border: 0;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  overflow: hidden;
}
.m-text {
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}
.mat {
  width: 64px;
  height: 38px;
  background: var(--panel);
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.m-spec {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1;
  color: var(--fg);
  white-space: nowrap;
}
.dots {
  display: flex;
  align-items: center;
  gap: 5px;
}
.dots i {
  display: block;
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
}
.dots i:nth-child(1) {
  opacity: 0.25;
}
.dots i:nth-child(2) {
  opacity: 0.55;
}
/* manifesto entrance — per era, one-shot on reveal. Era 01 (minimalism):
   fade + 10px rise, 630ms, 225ms stagger. Other eras author their own or none. */
.era-block[data-for="1"].entrance-ready .m-card {
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 630ms cubic-bezier(0.2, 0.7, 0.3, 1),
    transform 630ms cubic-bezier(0.2, 0.7, 0.3, 1);
}
.era-block[data-for="1"].entrance-ready .m-card:nth-child(2) {
  transition-delay: 225ms;
}
.era-block[data-for="1"].entrance-ready .m-card:nth-child(3) {
  transition-delay: 450ms;
}
.era-block[data-for="1"].entrance-ready.is-revealed .m-card {
  opacity: 1;
  transform: none;
}
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  width: 100%;
}
.about h2,
.contact h2 {
  font-size: 20px;
  line-height: 1.4;
  margin-bottom: 12px;
}
.about {
  border-bottom: var(--border);
  padding-block: 40px;
}
.about .wrap {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 60ch) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}
.stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.stack div {
  border: var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 8px 10px;
  font-size: 12px;
  box-shadow: var(--shadow);
}
.contact {
  height: 216px;
  border-bottom: var(--border);
  display: flex;
  align-items: center;
}
.band {
  width: 100%;
  border: var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 20px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.band p {
  font-size: 13px;
  color: var(--muted);
}
.contact-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.band .cta {
  margin: 0;
}
.ltr {
  direction: ltr;
  unicode-bidi: isolate;
  font-size: 12px;
}
footer {
  border-top: var(--border);
  padding-block: 32px;
}
.fgrid {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  font-size: 12px;
  color: var(--muted);
}
.fgrid h3 {
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
  margin: 0;
}
.fgrid .fbrand {
  font-size: 13px;
  color: var(--fg);
  font-weight: 700;
}
.fgrid .fyear {
  display: block;
  margin-top: 4px;
}
.fgrid a {
  display: block;
  color: var(--fg);
  text-decoration: none;
  margin-top: 4px;
  text-align: start;
}
.fgrid a.ltr {
  direction: rtl;
  unicode-bidi: isolate;
}

/* ---- Era-change transition — one breath, no edge, every pair ----
   Fade down 200 ms → trough (readiness-bound, 0–260 ms) → fade up 280 ms.
   Opacity only: no wipe, no transform, no scale, no direction. The layer takes
   the OUTGOING era's own background, so the page dissolves into its own ground
   and the destination rises out of it — no third colour is ever introduced.
   The layer sits above everything, the era wheel included: the whole page is
   one surface, so the wheel's own per-era redesign is seen arriving with the
   era rather than staying behind while everything else changes. */
.era-fade {
  position: fixed;
  inset: 0;
  z-index: 30;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  background: var(--fade-bg, #fff);
  transition: opacity 200ms cubic-bezier(0.4, 0, 0.7, 1);
}
.era-fade.is-down {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}
.era-fade.is-up {
  visibility: visible;
  opacity: 0;
  pointer-events: auto;
  transition: opacity 280ms cubic-bezier(0.2, 0.4, 0.3, 1);
}
/* No transition at all, so a state swap can never be caught mid-fade. */
.era-fade.is-cut {
  transition: none !important;
}
/* Reduced motion / Save-Data: instant swap, then a 120 ms fade. */
.era-fade.is-quick {
  transition: opacity 120ms linear !important;
}

body.is-switching .rail,
body.is-switching .fit-next,
body.is-switching .cta {
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .exhibit::before,
  .exhibit::after,
  .exhibit *,
  .exhibit *::before,
  .exhibit *::after {
    animation: none !important;
  }
  .link::after,
  .fit-arrow {
    transition: none !important;
  }
  .fit-arrow {
    transform: none !important;
  }
  .fit-next::before,
  .fit-next::after {
    transition: none !important;
    animation: none !important;
  }
  .sk-knob,
  .sk-toggle::before,
  .sk-toggle::after,
  .sk-screen-off,
  .sk-led-core,
  .sk-led-spill {
    transition: none !important;
  }
  .cta,
  .fit-next,
  .fit-arrow,
  .rail button,
  .logo {
    transition: none !important;
  }
  .era-block.entrance-ready .m-card {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
    animation: none !important;
  }
  .era-block.entrance-ready .m-card::after {
    opacity: 0 !important;
    transform: none !important;
    animation: none !important;
  }
}
@media (max-width: 1024px) {
  body {
    padding-inline-end: 0;
  }
  .hero {
    padding-block: 28px;
    min-height: 0;
  }
  .hero .wrap {
    grid-template-columns: minmax(0, 1fr) minmax(0, 360px);
    row-gap: 0;
    height: auto;
    padding-inline-end: 24px;
  }
  .rail {
    position: static;
    transform: none;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 10px;
    width: 100%;
    grid-column: 1/-1;
    grid-row: 1;
    margin-bottom: 28px;
  }
  .rail button {
    flex: 1;
    min-width: 0;
    width: auto;
    height: 48px;
    font-size: 13px;
    padding-inline: 2px;
  }
  .hero-copy {
    grid-column: 1;
    grid-row: 2;
    align-self: end;
  }
  .hero-actions {
    grid-column: 1;
    grid-row: 3;
    align-self: start;
  }
  .hero .era-stage {
    grid-column: 2;
    grid-row: 2 / span 2;
  }
  .hero h1 {
    font-size: 36px;
    min-height: 94px;
  }
  html[data-era="3"] .hero h1 {
    font-size: 40px;
    min-height: 104px;
    max-inline-size: 440px;
  }
  html[data-era="4"] .hero h1 {
    font-size: 36px;
    min-height: 94px;
  }
  html[data-era="5"] .hero h1 {
    font-size: 35px;
    min-height: 91px;
  }
  .hero .cta-line {
    margin-top: 24px;
  }
  .hero .cta {
    margin-top: 10px;
    margin-bottom: 6px;
  }
  .hero .rail-hint {
    margin-top: 12px;
  }
  .era-stage {
    max-width: 360px;
    margin-inline: auto;
  }
  .manifesto {
    height: 340px;
    padding-block: 22px;
  }
  .m-card {
    height: 170px;
  }
  .fit {
    height: 256px;
    padding-block: 26px;
  }
  .fit-head {
    margin-bottom: 18px;
  }
  .about {
    padding-block: 24px;
  }
  .contact {
    height: 208px;
  }
  footer {
    padding-block: 26px;
  }
  .fgrid {
    gap: 20px;
  }
}
@media (max-width: 640px) {
  .hero {
    padding-block: 20px;
  }
  .hero .wrap {
    grid-template-columns: 1fr;
    height: auto;
    row-gap: 20px;
    padding-inline-end: 24px;
  }
  .rail {
    grid-column: auto;
    grid-row: auto;
    margin-bottom: 0;
    gap: 8px;
  }
  .rail button {
    height: 44px;
    font-size: 12px;
    padding-inline: 2px;
  }
  .hero-copy,
  .hero-actions,
  .hero .era-stage {
    grid-column: auto;
    grid-row: auto;
    align-self: auto;
  }
  .hero .cta-line {
    margin-top: 0;
  }
  .hero .cta {
    margin-top: 10px;
    margin-bottom: 6px;
  }
  .hero .rail-hint {
    margin-top: 12px;
  }
  .hero h1 {
    font-size: 34px;
    min-height: 92px;
  }
  html[data-era="4"] .hero h1 {
    font-size: 34px;
    min-height: 92px;
  }
  html[data-era="5"] .hero h1 {
    font-size: 35px;
    min-height: 91px;
  }
  html[data-era="5"] .hero h1 .h1-accent {
    text-shadow: 0 0 8px rgba(255, 62, 165, 0.3);
  }
  html[data-era="3"] .hero h1 {
    font-size: 34px;
    min-height: 92px;
    max-inline-size: 380px;
  }
  html[data-era="3"] .sk-device::before {
    opacity: 0.45;
  }
  html[data-era="3"] .sk-led-spill {
    filter: blur(1px);
  }
  html[data-era="3"] .m-cards {
    perspective: 800px;
  }
  html[data-era="3"] .era-block[data-for="3"].entrance-ready .m-card {
    transform: translateY(10px) translateZ(-14px) rotateX(4deg) scale(0.985);
  }
  .era-stage {
    max-width: 320px;
  }
  .bru-main {
    box-shadow: 8px 8px 0 #111;
  }
  .gl-back {
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }
  .gl-mid {
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
  }
  .gl-front {
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
  }
  .retro-grid {
    background-size: 32px 24px;
  }
  .manifesto {
    height: 474px;
    padding-block: 20px;
  }
  .m-cards {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .m-card {
    height: 116px;
    display: grid;
    grid-template-columns: 104px minmax(0, 1fr);
    grid-template-rows: auto 1fr;
    gap: 4px 10px;
    padding: 10px;
  }
  .m-label {
    grid-column: 1/-1;
  }
  .m-demo {
    grid-column: 1;
    grid-row: 2;
    height: 100%;
  }
  .m-text {
    grid-column: 2;
    grid-row: 2;
    align-self: center;
  }
  .fit {
    height: 288px;
    padding-block: 24px;
  }
  .fit-head {
    margin-bottom: 16px;
  }
  .fit-claim {
    font-size: 18px;
    line-height: 1.5;
  }
  .fit-body {
    font-size: 15px;
    line-height: 1.7;
    margin-top: 8px;
  }
  .about {
    padding-block: 24px;
  }
  .contact {
    height: auto;
    padding-block: 24px;
  }
  .band {
    flex-direction: column;
    align-items: stretch;
  }
  footer {
    padding-block: 22px;
  }
  .stats,
  .about .wrap,
  .fgrid {
    grid-template-columns: 1fr;
  }
  html[data-era="2"] .about .wrap {
    grid-template-columns: 1fr;
  }
  .fgrid {
    gap: 16px;
  }
}
@media (max-width: 320px) {
  .rail {
    gap: 6px;
  }
  .rail button {
    height: 40px;
    font-size: 11px;
    padding-inline: 1px;
  }
}
@media (prefers-contrast: more) {
  html[data-era="5"] .hero h1 .h1-primary {
    background: none;
    color: var(--fg);
    -webkit-text-fill-color: var(--fg);
  }
  html[data-era="5"] .hero h1 .h1-accent {
    text-shadow: none;
  }
}
@media (forced-colors: active) {
  html[data-era="5"] .hero h1 .h1-primary {
    background: none;
    color: CanvasText;
    -webkit-text-fill-color: CanvasText;
  }
  html[data-era="5"] .hero h1 .h1-accent {
    text-shadow: none;
  }
}