/* ============================================================
   Vidhyasetu — design system
   A warm-paper / editorial system. No gradients-as-decoration,
   no glassmorphism-by-default, no purple. Ink, paper, one accent.
   ============================================================ */

/* ---------- 1. Tokens ------------------------------------- */
:root {
  /* paper + ink */
  --paper:      #f6f3ea;
  --paper-2:    #fbf9f3;
  --paper-3:    #efe9db;
  --ink:        #171a17;
  --ink-soft:   #3d443d;
  --ink-mute:   #6f776d;
  --ink-faint:  #9aa096;
  --rule:       #ddd6c6;
  --rule-soft:  #e7e1d3;

  /* accents */
  --acc:        #1e5245;
  --acc-deep:   #123528;
  --acc-tint:   #e3ece7;
  --amber:      #bc5a1b;
  --amber-tint: #f7e7d8;
  --indigo:     #33427a;

  /* per-class hue (overridden inline per class) */
  --h: 160;

  /* type */
  --serif: "Fraunces", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* motion */
  --e-out:    cubic-bezier(.22, 1, .36, 1);
  --e-in-out: cubic-bezier(.65, 0, .35, 1);
  --e-spring: cubic-bezier(.34, 1.56, .64, 1);
  --t-fast: 180ms;
  --t-mid:  420ms;
  --t-slow: 760ms;

  /* space + shape */
  --gut: clamp(1.15rem, 4vw, 3.25rem);
  --maxw: 1220px;
  --r-sm: 6px;
  --r:    12px;
  --r-lg: 20px;
}

/* ---------- 2. Reset -------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  /* clip rather than hidden: this stops the negative-offset decoration
     chips from making the document wider than the viewport, without
     turning the root into a scroll container */
  overflow-x: clip;
}

body {
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.62;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, canvas { display: block; max-width: 100%; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }

::selection { background: var(--acc); color: var(--paper-2); }

:focus-visible {
  outline: 2px solid var(--acc);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 3. Ambient layer ------------------------------ */
/* a faint dot grid that brightens near the cursor */
.grain {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: radial-gradient(circle at center, var(--rule) 0.9px, transparent 1px);
  background-size: 26px 26px;
  opacity: .5;
  -webkit-mask-image: radial-gradient(340px circle at var(--mx, -500px) var(--my, -500px), #000 0%, rgba(0,0,0,.34) 46%, transparent 72%);
          mask-image: radial-gradient(340px circle at var(--mx, -500px) var(--my, -500px), #000 0%, rgba(0,0,0,.34) 46%, transparent 72%);
  transition: opacity var(--t-slow) linear;
}
.grain::after {
  content: "";
  position: absolute;
  inset: 0;
  /* paper tooth */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.34'/%3E%3C/svg%3E");
  opacity: .035;
  mix-blend-mode: multiply;
}

/* ---------- 4. Layout primitives -------------------------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
  position: relative;
  z-index: 2;
}
.wrap--narrow { max-width: 880px; }

.section { padding-block: clamp(4.5rem, 10vw, 9rem); position: relative; z-index: 2; }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }

.rule-top { border-top: 1px solid var(--rule); }

/* ---------- 5. Type --------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  font-variation-settings: "SOFT" 20, "WONK" 1, "opsz" 120;
  letter-spacing: -.022em;
  line-height: 1.03;
  text-wrap: balance;
}

/* the big statement.
   Note the padding-bottom on .mask: the masks hide overflow, and
   Fraunces descenders overhang the line box at these sizes, so the
   room has to be reserved explicitly or the g and y get sliced off. */
.hero__title {
  font-size: clamp(2.4rem, 5.6vw, 4.85rem);
  line-height: 1.1;
  letter-spacing: -.034em;
}
.hero__title em {
  font-style: italic;
  font-variation-settings: "SOFT" 40, "WONK" 1, "opsz" 144;
  color: var(--acc);
}

.h2 {
  font-size: clamp(2rem, 4.6vw, 3.3rem);
  letter-spacing: -.03em;
}
.h3 {
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  line-height: 1.14;
}

/* eyebrow — set in mono, lowercase, tracked out. reads as annotation, not badge */
.eyebrow {
  font-family: var(--mono);
  font-size: .705rem;
  font-weight: 500;
  letter-spacing: .17em;
  text-transform: uppercase;
  color: var(--ink-mute);
  display: flex;
  align-items: center;
  gap: .7rem;
}
.eyebrow::before {
  content: "";
  width: 1.7rem;
  height: 1px;
  background: currentColor;
  opacity: .55;
  flex: none;
}
.eyebrow--plain::before { display: none; }

.lede {
  font-size: clamp(1.02rem, 1.55vw, 1.2rem);
  line-height: 1.58;
  color: var(--ink-soft);
  max-width: 54ch;
}

.mono { font-family: var(--mono); font-size: .78rem; letter-spacing: .02em; }
.sc { font-variant-caps: all-small-caps; letter-spacing: .06em; }

.muted { color: var(--ink-mute); }
.hl {
  background: linear-gradient(transparent 58%, hsl(var(--h) 42% 84%) 58%);
  padding-inline: .05em;
}

/* ---------- 6. Buttons ------------------------------------ */
.btn {
  --bg: var(--ink);
  --fg: var(--paper-2);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .82rem 1.35rem;
  background: var(--bg);
  color: var(--fg);
  border-radius: 100px;
  font-size: .875rem;
  font-weight: 560;
  letter-spacing: -.006em;
  white-space: nowrap;
  overflow: hidden;
  isolation: isolate;
  transition: transform var(--t-fast) var(--e-out), box-shadow var(--t-fast) var(--e-out);
  box-shadow: 0 1px 0 rgba(0,0,0,.06);
}
/* circular ink wipe on hover */
.btn::before {
  content: "";
  position: absolute;
  z-index: -1;
  left: var(--bx, 50%);
  top: var(--by, 50%);
  width: 0;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--bg-hover, var(--acc));
  transform: translate(-50%, -50%);
  transition: width var(--t-mid) var(--e-out);
}
.btn:hover::before,
.btn:focus-visible::before { width: 260%; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 22px -10px rgba(23,26,23,.5); }
.btn:active { transform: translateY(0); }

.btn--acc  { --bg: var(--acc); --bg-hover: var(--ink); }
.btn--ghost {
  --bg: transparent;
  --fg: var(--ink);
  --bg-hover: var(--acc-tint);
  border: 1px solid var(--rule);
  box-shadow: none;
}
.btn--ghost:hover { border-color: var(--acc); }

.btn--sm { padding: .6rem 1rem; font-size: .8rem; }

/* arrow nudge */
.btn svg { transition: transform var(--t-fast) var(--e-out); }
.btn:hover svg { transform: translateX(3px); }

/* text link with a rule that draws in */
.tlink {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .875rem;
  font-weight: 500;
  padding-bottom: 2px;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size var(--t-mid) var(--e-out), color var(--t-fast) linear;
}
.tlink:hover { background-size: 100% 1px; color: var(--acc); }

/* ---------- 7. Nav ---------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 60;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-mid) linear, background var(--t-mid) linear;
}
.nav.is-stuck { border-bottom-color: var(--rule); }
.nav__in {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 66px;
}

.brand { display: flex; align-items: baseline; gap: .5rem; }
.brand__mark {
  font-family: var(--serif);
  font-variation-settings: "SOFT" 30, "WONK" 1, "opsz" 100;
  font-size: 1.34rem;
  font-weight: 600;
  letter-spacing: -.035em;
  line-height: 1;
  white-space: nowrap;
}
.brand__dev {
  font-family: var(--serif);
  font-size: .86rem;
  color: var(--ink-faint);
  letter-spacing: 0;
  white-space: nowrap;
}
.brand__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--amber);
  align-self: center;
  margin-left: .1rem;
  animation: pulse 2.6s var(--e-in-out) infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.55); opacity: .45; }
}

/* the name is ten characters long, so the Devanagari companion is the
   first thing to go when the bar gets tight */
@media (max-width: 520px) {
  .brand__dev { display: none; }
  .brand__mark { font-size: 1.2rem; }
}

.nav__links {
  display: flex;
  gap: 1.6rem;
  margin-left: auto;
  font-size: .855rem;
  color: var(--ink-soft);
}
.nav__links a { position: relative; padding-block: .2rem; }
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--t-mid) var(--e-out);
}
.nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav__cta { margin-left: .25rem; }

@media (max-width: 800px) {
  .nav__links { display: none; }
  .nav__cta { margin-left: auto; }
}

/* ---------- 8. Hero --------------------------------------- */
.hero { position: relative; padding-top: clamp(2.5rem, 6vw, 4.5rem); }
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
@media (max-width: 940px) {
  .hero__grid { grid-template-columns: 1fr; gap: 3rem; }
}

.hero__title { margin-block: 1.1rem 1.25rem; }
.hero__lede { font-size: clamp(1.02rem, 1.7vw, 1.24rem); max-width: 46ch; color: var(--ink-soft); }

.hero__acts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .85rem 1.4rem;
  margin-top: 2rem;
}

/* the "1 ready / 47 coming" ledger — honest numbers, live from the catalog */
.tally {
  display: flex;
  gap: clamp(1.1rem, 3.5vw, 2.6rem);
  margin-top: 2.9rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  flex-wrap: wrap;
}
.tally__n {
  font-family: var(--serif);
  font-variation-settings: "SOFT" 20, "WONK" 0, "opsz" 90;
  font-size: clamp(1.7rem, 3.4vw, 2.3rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
  display: block;
}
.tally__l {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-top: .45rem;
  display: block;
}

/* hero entrance: lines rise out of a mask, one after another.
   The negative margin cancels the descender room so the lines still
   sit tight against each other while staying unclipped. */
.mask {
  overflow: hidden;
  display: block;
  padding-bottom: .18em;
  margin-bottom: -.18em;
}
.mask > * {
  display: block;
  transform: translateY(118%);
  animation: riseIn 1.05s var(--e-out) forwards;
  animation-delay: var(--d, 0ms);
}
@keyframes riseIn { to { transform: translateY(0); } }

.fade-up {
  opacity: 0;
  transform: translateY(14px);
  animation: fadeUp .95s var(--e-out) forwards;
  animation-delay: var(--d, 0ms);
}
@keyframes fadeUp { to { opacity: 1; transform: none; } }

/* ---------- 9. Live sim card ------------------------------ */
.simcard {
  position: relative;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  box-shadow:
    0 1px 1px rgba(23,26,23,.04),
    0 12px 28px -18px rgba(23,26,23,.28),
    0 40px 70px -50px rgba(23,26,23,.4);
}
.simcard__bar {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .8rem 1rem;
  border-bottom: 1px solid var(--rule-soft);
}
.simcard__dots { display: flex; gap: 5px; }
.simcard__dots i {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--rule);
  display: block;
}
.simcard__ttl {
  font-family: var(--mono);
  font-size: .715rem;
  letter-spacing: .05em;
  color: var(--ink-soft);
  margin-inline: auto 0;
}

.livedot {
  display: inline-flex; align-items: center; gap: .4rem;
  font-family: var(--mono); font-size: .66rem;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--acc);
}
.livedot i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--acc);
  animation: pulse 1.9s var(--e-in-out) infinite;
}

.simcard__stage { padding: 1rem; background: var(--paper-3); }
.simcard__stage canvas { width: 100%; height: auto; border-radius: var(--r-sm); }

.reads {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--rule-soft);
}
.reads > div {
  padding: .7rem .9rem;
  border-right: 1px solid var(--rule-soft);
}
.reads > div:last-child { border-right: 0; }
.reads dt {
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .11em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.reads dd {
  font-family: var(--mono);
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  margin-top: .18rem;
  letter-spacing: -.01em;
}
.reads dd span { font-size: .72rem; color: var(--ink-faint); margin-left: .12em; }

.ctrls {
  display: grid;
  gap: .55rem;
  padding: .95rem 1rem 1.05rem;
  border-top: 1px solid var(--rule-soft);
}
.ctrl { display: grid; grid-template-columns: 3.6rem 1fr 3.5rem; align-items: center; gap: .7rem; }
.ctrl__lab {
  font-family: var(--mono); font-size: .68rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--ink-mute);
}
.ctrl__val {
  font-family: var(--mono); font-size: .76rem;
  text-align: right; font-variant-numeric: tabular-nums; color: var(--ink);
}

/* range input — squared off, ink thumb, accent track fill */
input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 3px; background: var(--rule);
  border-radius: 2px; outline: none;
  background-image: linear-gradient(var(--acc), var(--acc));
  background-repeat: no-repeat;
  background-size: var(--fill, 40%) 100%;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--paper-2);
  border: 2px solid var(--ink);
  transition: transform var(--t-fast) var(--e-spring), border-color var(--t-fast) linear;
}
input[type="range"]:hover::-webkit-slider-thumb { transform: scale(1.22); border-color: var(--acc); }
input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.05); }
input[type="range"]::-moz-range-thumb {
  width: 13px; height: 13px; border-radius: 50%;
  background: var(--paper-2); border: 2px solid var(--ink);
}
input[type="range"]::-moz-range-track { height: 3px; background: var(--rule); }

.simcard__foot {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding: .8rem 1rem;
  border-top: 1px solid var(--rule-soft);
  font-size: .8rem;
}
.simcard__hint { font-family: var(--mono); font-size: .68rem; color: var(--ink-faint); letter-spacing: .03em; }

/* floating annotation chips that drift with the pointer */
.chip-float {
  position: absolute;
  z-index: 3;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: 100px;
  padding: .4rem .8rem;
  font-family: var(--mono);
  font-size: .685rem;
  letter-spacing: .02em;
  color: var(--ink-soft);
  box-shadow: 0 8px 20px -14px rgba(23,26,23,.5);
  transform: translate3d(calc(var(--px, 0) * var(--depth, 10) * 1px), calc(var(--py, 0) * var(--depth, 10) * 1px), 0);
  transition: transform 700ms var(--e-out);
  pointer-events: none;
  white-space: nowrap;
}
.chip-float b { color: var(--acc); font-weight: 500; }
.chip-float--tl { top: -14px; left: -22px; --depth: 14; }
/* the right-hand chips overhang the card on purpose, so they only earn
   their negative offset once there is margin to spare */
.chip-float--br { bottom: 58px; right: 0; --depth: -11; }
.chip-float--r  { top: 38%; right: 0; --depth: 18; }

@media (min-width: 1200px) {
  .chip-float--br { right: -18px; }
  .chip-float--r  { right: -34px; }
}

@media (max-width: 620px) {
  .chip-float--r, .chip-float--br { display: none; }
  .chip-float--tl { left: 0; }
}

/* ---------- 10. Ticker ------------------------------------ */
.ticker {
  position: relative;
  border-block: 1px solid var(--rule);
  background: var(--paper-2);
  overflow: hidden;
  padding-block: .95rem;
  z-index: 2;
}
.ticker::before, .ticker::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 12%;
  z-index: 2; pointer-events: none;
}
.ticker::before { left: 0;  background: linear-gradient(90deg, var(--paper-2), transparent); }
.ticker::after  { right: 0; background: linear-gradient(270deg, var(--paper-2), transparent); }
.ticker__row {
  display: flex;
  width: max-content;
  animation: slide 52s linear infinite;
}
.ticker:hover .ticker__row { animation-play-state: paused; }
@keyframes slide { to { transform: translateX(-50%); } }
.ticker__set { display: flex; align-items: center; }
.ticker__set span {
  font-family: var(--serif);
  font-variation-settings: "SOFT" 30, "WONK" 1, "opsz" 40;
  font-size: 1.06rem;
  color: var(--ink-soft);
  padding-inline: 1.15rem;
  display: inline-flex;
  align-items: center;
  gap: 1.15rem;
  white-space: nowrap;
}
.ticker__set span::after {
  content: "";
  width: 5px; height: 5px; border-radius: 50%;
  background: hsl(var(--h, 160) 30% 62%);
  flex: none;
}
.ticker__set span:nth-child(3n+1) { --h: 160; }
.ticker__set span:nth-child(3n+2) { --h: 24; }
.ticker__set span:nth-child(3n)   { --h: 226; }

/* ---------- 11. Reveal on scroll -------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 800ms var(--e-out) var(--d, 0ms),
    transform 900ms var(--e-out) var(--d, 0ms);
}
[data-reveal="left"]  { transform: translateX(-24px); }
[data-reveal="right"] { transform: translateX(24px); }
[data-reveal="blur"]  { filter: blur(9px); transform: translateY(12px); }
[data-reveal].is-in {
  opacity: 1;
  transform: none;
  filter: none;
}

/* ---------- 12. Story / notebook -------------------------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: 2.6rem; } }

.note {
  position: relative;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 1.5rem 1.5rem 1.7rem;
  box-shadow: 0 20px 40px -34px rgba(23,26,23,.55);
  background-image: repeating-linear-gradient(
    var(--paper-2) 0 27px, var(--rule-soft) 27px 28px
  );
  background-position: 0 1.5rem;
  transform: rotate(-.7deg);
}
.note::before {
  /* spiral binding */
  content: "";
  position: absolute;
  left: 10px; top: 14px; bottom: 14px;
  width: 6px;
  background-image: radial-gradient(circle, var(--rule) 2.2px, transparent 2.6px);
  background-size: 6px 22px;
}
.note__body { padding-left: 1.4rem; }
.note__hd {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 1.1rem;
}
.note p { font-size: .93rem; line-height: 28px; color: var(--ink-soft); }
.note p + p { margin-top: 28px; }
.note u {
  text-decoration: none;
  border-bottom: 1px solid var(--amber);
  padding-bottom: 1px;
}
.note__q {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.02rem;
  color: var(--ink);
}

.tick-list { display: grid; gap: .9rem; margin-top: 1.7rem; }
.tick-list li { display: flex; gap: .8rem; align-items: flex-start; font-size: .93rem; color: var(--ink-soft); }
.tick-list svg { flex: none; margin-top: .28rem; color: var(--acc); }

/* ---------- 13. Catalog ----------------------------------- */
.filters {
  position: sticky;
  top: 66px;
  z-index: 40;
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding-block: .9rem 1rem;
  margin-bottom: 1.6rem;
  border-bottom: 1px solid var(--rule-soft);
}
.filters__row {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}
.filters__row + .filters__row { margin-top: .7rem; }

.fgroup { display: flex; gap: .3rem; flex-wrap: wrap; }

.chip {
  --h: 160;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .42rem;
  padding: .38rem .8rem;
  border: 1px solid var(--rule);
  border-radius: 100px;
  font-size: .81rem;
  color: var(--ink-soft);
  background: var(--paper-2);
  transition:
    border-color var(--t-fast) linear,
    color var(--t-fast) linear,
    background var(--t-fast) linear,
    transform var(--t-fast) var(--e-out);
}
.chip:hover { transform: translateY(-1.5px); border-color: hsl(var(--h) 30% 66%); }
.chip__n {
  font-family: var(--mono);
  font-size: .64rem;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
  transition: color var(--t-fast) linear;
}
.chip[aria-pressed="true"] {
  background: hsl(var(--h) 32% 17%);
  border-color: hsl(var(--h) 32% 17%);
  color: var(--paper-2);
}
.chip[aria-pressed="true"] .chip__n { color: hsl(var(--h) 40% 76%); }
.chip--sm { padding: .3rem .7rem; font-size: .77rem; }

.search {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-left: auto;
  border-bottom: 1px solid var(--rule);
  padding-bottom: .25rem;
  min-width: 190px;
  transition: border-color var(--t-fast) linear;
}
.search:focus-within { border-color: var(--acc); }
.search input {
  border: 0; background: none; outline: none;
  font-size: .84rem; width: 100%;
  padding: 0;
}
.search input::placeholder { color: var(--ink-faint); }
.search svg { color: var(--ink-faint); flex: none; }
@media (max-width: 700px) { .search { margin-left: 0; width: 100%; } }

.filters__foot {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: .705rem;
  letter-spacing: .04em;
  color: var(--ink-mute);
}

/* grid */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 306px), 1fr));
  gap: 1rem;
  align-items: start;
}

.card {
  --h: 160;
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 216px;
  padding: 1.1rem 1.15rem 1rem;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: var(--r);
  overflow: hidden;
  isolation: isolate;
  transition:
    transform var(--t-mid) var(--e-out),
    border-color var(--t-mid) var(--e-out),
    box-shadow var(--t-mid) var(--e-out),
    opacity var(--t-mid) linear;
}
/* class-hue wash that rises on hover */
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(to top, hsl(var(--h) 40% 90%) 0%, hsl(var(--h) 44% 96%) 60%, transparent 100%);
  opacity: 0;
  transform: translateY(38%);
  transition: opacity var(--t-mid) var(--e-out), transform var(--t-mid) var(--e-out);
}
.card:hover {
  transform: translateY(-4px);
  border-color: hsl(var(--h) 26% 72%);
  box-shadow: 0 18px 34px -26px hsl(var(--h) 40% 22% / .6);
}
.card:hover::after { opacity: 1; transform: translateY(0); }

/* the class ribbon: a hairline that fills on hover */
.card__ribbon {
  position: absolute;
  left: 0; top: 0;
  width: 3px; height: 100%;
  background: hsl(var(--h) 34% 45%);
  transform: scaleY(var(--rs, .28));
  transform-origin: top;
  transition: transform var(--t-slow) var(--e-out);
}
.card:hover .card__ribbon { --rs: 1; }

.card__hd {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin-bottom: .8rem;
}
.card__cls {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: hsl(var(--h) 32% 30%);
  background: hsl(var(--h) 44% 92%);
  border-radius: 4px;
  padding: .16rem .42rem;
}
.card__subj {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.card__ttl {
  font-family: var(--serif);
  font-variation-settings: "SOFT" 25, "WONK" 1, "opsz" 60;
  font-size: 1.24rem;
  font-weight: 600;
  letter-spacing: -.024em;
  line-height: 1.12;
}
.card__desc {
  font-size: .855rem;
  line-height: 1.52;
  color: var(--ink-mute);
  margin-top: .5rem;
}
.card__foot {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: .8rem;
  margin-top: auto;
  padding-top: 1.1rem;
}
.card__topic {
  font-family: var(--mono);
  font-size: .665rem;
  letter-spacing: .03em;
  color: var(--ink-faint);
  border-top: 1px dashed var(--rule);
  padding-top: .45rem;
  flex: 1;
  min-width: 0;
}
.card__topic b { color: var(--ink-mute); font-weight: 500; }

/* status */
.status {
  font-family: var(--mono);
  font-size: .64rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .26rem .55rem;
  border-radius: 4px;
  white-space: nowrap;
  flex: none;
}
.status--soon {
  color: var(--amber);
  background: var(--amber-tint);
  border: 1px solid #eccfae;
}
.status--live {
  color: var(--paper-2);
  background: var(--acc);
}
.card__go {
  display: inline-flex; align-items: center; gap: .3rem;
  font-size: .79rem; font-weight: 540; color: var(--acc);
}
.card__go svg { transition: transform var(--t-fast) var(--e-out); }
.card:hover .card__go svg { transform: translateX(3px); }

/* empty state */
.empty {
  grid-column: 1 / -1;
  border: 1px dashed var(--rule);
  border-radius: var(--r);
  padding: 3.2rem 1.5rem;
  text-align: center;
}
.empty p { color: var(--ink-mute); margin-top: .5rem; font-size: .9rem; }

/* ---------- 14. Steps ------------------------------------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 3rem; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; gap: 1.8rem; } }
.step { position: relative; padding-top: 1.4rem; border-top: 1px solid var(--rule); }
.step__n {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--acc);
  display: block;
  margin-bottom: .7rem;
}
.step h3 { font-size: 1.16rem; margin-bottom: .45rem; }
.step p { font-size: .89rem; color: var(--ink-mute); line-height: 1.55; }

/* ---------- 15. Build log --------------------------------- */
.log { border-top: 1px solid var(--rule); }
.log__row {
  display: grid;
  grid-template-columns: 6.6rem 1fr auto;
  gap: 1.2rem;
  align-items: baseline;
  padding-block: 1.15rem;
  border-bottom: 1px solid var(--rule-soft);
  transition: background var(--t-fast) linear, padding-inline var(--t-mid) var(--e-out);
}
.log__row:hover { background: var(--paper-2); padding-inline: .8rem; }
.log__date { font-family: var(--mono); font-size: .72rem; color: var(--ink-faint); letter-spacing: .03em; }
.log__txt { font-size: .95rem; color: var(--ink-soft); }
.log__txt b { font-weight: 600; color: var(--ink); }
.log__tag {
  font-family: var(--mono); font-size: .63rem;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-mute);
  border: 1px solid var(--rule);
  border-radius: 100px;
  padding: .16rem .55rem;
}
.log__tag--new { color: var(--acc); border-color: #b9cfc6; background: var(--acc-tint); }
@media (max-width: 640px) {
  .log__row { grid-template-columns: 1fr auto; gap: .5rem .8rem; }
  .log__txt { grid-column: 1 / -1; order: 3; }
}

/* ---------- 16. CTA --------------------------------------- */
.cta {
  position: relative;
  overflow: hidden;
  background: var(--acc-deep);
  color: #eef3ef;
  border-radius: var(--r-lg);
  padding: clamp(2.2rem, 5vw, 4rem);
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at center, rgba(255,255,255,.16) 1px, transparent 1.2px);
  background-size: 22px 22px;
  -webkit-mask-image: radial-gradient(120% 90% at 88% 8%, #000, transparent 62%);
          mask-image: radial-gradient(120% 90% at 88% 8%, #000, transparent 62%);
}
.cta > * { position: relative; }
.cta h2 { color: #f4f7f4; }
.cta .lede { color: #b9cbc3; }
.cta .eyebrow { color: #8fae9f; }
.cta__form {
  display: flex;
  gap: .5rem;
  margin-top: 1.9rem;
  max-width: 460px;
  flex-wrap: wrap;
}
.cta__form input {
  flex: 1 1 220px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.22);
  color: #f2f6f3;
  padding: .78rem 1rem;
  border-radius: 100px;
  font-size: .87rem;
  outline: none;
  transition: border-color var(--t-fast) linear, background var(--t-fast) linear;
}
.cta__form input::placeholder { color: #8fae9f; }
.cta__form input:focus { border-color: #9ec7b4; background: rgba(255,255,255,.11); }
.cta__form .btn { --bg: #f4f7f4; --fg: var(--acc-deep); --bg-hover: #cfe3d8; }
.cta__note {
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: .705rem;
  color: #8fae9f;
  letter-spacing: .03em;
}
.cta__ok { margin-top: 1.1rem; font-size: .9rem; color: #cfe3d8; display: none; }
.cta__ok.is-on { display: block; animation: fadeUp .5s var(--e-out) both; }

/* ---------- 17. Footer ------------------------------------ */
.foot { padding-block: 3rem 3.5rem; border-top: 1px solid var(--rule); }
.foot__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 720px) { .foot__grid { grid-template-columns: 1fr; gap: 1.6rem; } }
.foot__h {
  font-family: var(--mono); font-size: .66rem;
  letter-spacing: .13em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: .8rem;
}
.foot__list { display: grid; gap: .4rem; font-size: .87rem; color: var(--ink-soft); }
.foot__list a:hover { color: var(--acc); }
.foot__sig {
  margin-top: 2.5rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--rule-soft);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: .68rem;
  color: var(--ink-faint);
  letter-spacing: .02em;
}
.foot__sig p { max-width: 62ch; line-height: 1.7; }

/* ---------- 18. Motion preferences ------------------------ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; filter: none !important; }
  .mask > * { transform: none !important; }
  .fade-up { opacity: 1 !important; transform: none !important; }
  .ticker__row { animation: none !important; }
}

/* ---------- 19. Simulation page --------------------------- */
.simwrap { padding-block: 2rem 4rem; }
.simhead { margin-bottom: 1.6rem; }
.simhead h1 {
  font-size: clamp(1.9rem, 5vw, 3.1rem);
  margin-block: .7rem .6rem;
}
.crumbs {
  display: flex; align-items: center; gap: .5rem;
  font-family: var(--mono); font-size: .7rem;
  letter-spacing: .06em; color: var(--ink-faint);
  text-transform: uppercase;
}
.crumbs a:hover { color: var(--acc); }

.simbox {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 296px;
  gap: 1rem;
  align-items: start;
}
@media (max-width: 900px) { .simbox { grid-template-columns: 1fr; } }

.stage {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: var(--r);
  padding: 1rem;
}
.stage canvas { width: 100%; height: auto; border-radius: var(--r-sm); background: #fff; }

.panel {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: var(--r);
  padding: 1.1rem;
}
.panel + .panel { margin-top: 1rem; }
.panel__h {
  font-family: var(--mono); font-size: .66rem;
  letter-spacing: .13em; text-transform: uppercase;
  color: var(--ink-faint);
  padding-bottom: .7rem;
  margin-bottom: .9rem;
  border-bottom: 1px solid var(--rule-soft);
}
.panel .ctrl { grid-template-columns: 4.2rem 1fr 3.6rem; margin-bottom: .8rem; }
.panel .ctrl:last-child { margin-bottom: 0; }
.btnrow { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 1rem; }

.qbox {
  background: var(--paper-3);
  border-left: 2px solid var(--acc);
  padding: .8rem .95rem;
  font-size: .88rem;
  color: var(--ink-soft);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  margin-top: 1rem;
  line-height: 1.55;
}
.qbox b { color: var(--ink); }

.badge-row { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: .5rem; }
.pill {
  font-family: var(--mono); font-size: .64rem;
  letter-spacing: .09em; text-transform: uppercase;
  padding: .24rem .6rem; border-radius: 100px;
  border: 1px solid var(--rule); color: var(--ink-mute);
}
.pill--on { background: var(--acc); border-color: var(--acc); color: var(--paper-2); }