/* ============================================================
   Synchroneers landing page

   Colour tokens mirror src/constants/theme.ts so the site and the
   app stay one palette. Space, radius, and type are scales: every
   value below comes off one of them, so a section cannot quietly
   invent its own rhythm.
   ============================================================ */

:root {
  /* ---- Night ---- */
  --ink: #070b1d;
  --ink-elevated: #0d1430;
  --ink-soft: #121a3a;

  /* ---- Brand ---- */
  --cyan: #66e3d5;
  --cyan-strong: #39cabb;
  --violet: #9a7cff;
  --violet-soft: #b9a4ff;
  --amber: #f2b967;

  /* ---- Text ---- */
  --white: #f7f8ff;
  --text-muted: #aeb8d8;
  --text-subtle: #8f9bc2;

  /* ---- Lines and surfaces ----
     Surfaces sit on top of the star canvas, so they are translucent.
     Raising the alpha darkens the sky behind that section. */
  --border: #26315b;
  --border-soft: rgba(154, 124, 255, 0.18);
  --hairline: rgba(174, 184, 216, 0.14);
  --veil: rgba(7, 11, 29, 0.72);
  --card: rgba(13, 20, 48, 0.66);
  --card-solid: rgba(13, 20, 48, 0.9);

  /* ---- Type ---- */
  --font-display: 'Cormorant Garamond', 'Iowan Old Style', Georgia, 'Times New Roman', serif;
  --font-body: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* ---- Space scale ----
     Six steps. Anything that needs a value between two of them is
     almost always a sign the layout wants changing instead. */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 20px;
  --s-6: 24px;
  --s-7: 32px;
  --s-8: 40px;
  --s-9: 48px;

  /* Composite rhythm, shared by every section so they cannot drift. */
  --section-y: clamp(56px, 7vw, 100px);
  --head-gap: clamp(16px, 1.8vw, 24px);
  --block-gap: clamp(44px, 5.5vw, 76px);
  --pad-panel: clamp(20px, 2.2vw, 28px);

  /* ---- Radius scale ---- */
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-pill: 999px;

  /* ---- Motion, matching Motion/Ease in theme.ts ---- */
  --press: 140ms;
  --enter: 220ms;
  --exit: 160ms;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);

  /* ---- Layout ---- */
  --gutter: clamp(20px, 5vw, 64px);
  --max: 1180px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  /* Sticky header height plus breathing room. */
  scroll-padding-top: 96px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  font-size: clamp(16px, 0.55vw + 14.4px, 18px);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--cyan);
  text-decoration-color: rgba(102, 227, 213, 0.4);
  text-underline-offset: 3px;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--s-1);
}

::selection {
  background: rgba(154, 124, 255, 0.32);
  color: var(--white);
}

/* ============================================================
   Typography

   Cormorant Garamond is an old-style face with a small x-height,
   so its display sizes run larger than a modern serif would at the
   same optical weight. The scale below is set for that, not
   inherited from a previous face.
   ============================================================ */

h1,
h2,
h3 {
  margin: 0;
  text-wrap: balance;
}

h1,
h2 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.012em;
}

h1 {
  font-size: clamp(3rem, 7.6vw, 6.6rem);
}

h2 {
  font-size: clamp(2.4rem, 4.8vw, 3.9rem);
}

h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.06rem;
  line-height: 1.35;
  letter-spacing: -0.005em;
}

p {
  margin: 0;
  text-wrap: pretty;
}

.lede {
  font-size: clamp(1.06rem, 1vw + 0.84rem, 1.28rem);
  line-height: 1.55;
  color: var(--text-muted);
  max-width: 54ch;
}

.kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.kicker--rule {
  display: flex;
  align-items: center;
  gap: var(--s-3);
}

.kicker--rule::before {
  content: '';
  flex: none;
  width: clamp(28px, 6vw, 56px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}

.skip-link {
  position: absolute;
  left: var(--s-3);
  top: -80px;
  z-index: 100;
  padding: var(--s-3) var(--s-5);
  background: var(--cyan);
  color: var(--ink);
  font-weight: 600;
  border-radius: var(--r-sm);
  text-decoration: none;
  transition: top var(--enter) var(--ease-out);
}

.skip-link:focus-visible {
  top: var(--s-3);
}

/* ============================================================
   Sky
   ============================================================ */

#sky {
  position: fixed;
  inset: 0;
  z-index: 0;
  display: block;
  width: 100%;
  height: 100%;
  /* Painted before the sky boots so the first frame is never white. */
  background:
    radial-gradient(120% 80% at 78% 8%, rgba(154, 124, 255, 0.16), transparent 62%),
    radial-gradient(90% 70% at 12% 92%, rgba(57, 202, 187, 0.1), transparent 60%),
    var(--ink);
}

/* Constellation names, positioned each frame by sky.js. */
.sky-labels {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.sky-label {
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-display);
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--cyan);
  opacity: 0;
  /* Centred on its star group, and pulled clear of the figure lines. */
  translate: -50% -2.6em;
  transition: opacity 500ms linear;
}

.page {
  position: relative;
  z-index: 1;
}

/* ============================================================
   Header
   ============================================================ */

.masthead {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: var(--s-6);
  padding: var(--s-5) var(--gutter);
  transition: background-color var(--enter) var(--ease-out);
}

/* The rule fades out at both ends. Edge to edge, it reads as a seam
   ruled across the sky rather than as the bottom of a bar. */
.masthead::after {
  content: '';
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 1px;
  opacity: 0;
  background: linear-gradient(
    90deg,
    transparent,
    var(--hairline) 22%,
    var(--hairline) 78%,
    transparent
  );
  transition: opacity var(--enter) var(--ease-out);
}

.masthead[data-stuck='true'] {
  background: rgba(7, 11, 29, 0.82);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
}

.masthead[data-stuck='true']::after {
  opacity: 1;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  margin-right: auto;
  color: var(--white);
  text-decoration: none;
}

.brand img {
  width: 32px;
  height: 32px;
  filter: drop-shadow(0 0 14px rgba(154, 124, 255, 0.55));
}

.brand span {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.34rem;
  letter-spacing: 0.005em;
}

.nav-links {
  display: flex;
  gap: var(--s-6);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  position: relative;
  padding-block: var(--s-1);
  color: var(--text-muted);
  font-size: 0.92rem;
  text-decoration: none;
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--press) var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .nav-links a:hover {
    color: var(--white);
  }

  .nav-links a:hover::after {
    transform: scaleX(1);
  }
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  min-height: 46px;
  padding: 15px var(--s-6);
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font: inherit;
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--press) var(--ease-out),
    background-color var(--press) var(--ease-out),
    border-color var(--press) var(--ease-out),
    box-shadow var(--press) var(--ease-out);
}

.btn:active {
  transform: scale(0.97);
}

.btn--primary {
  background: var(--cyan);
  color: #04121a;
}

.btn--ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--white);
}

.btn--sm {
  min-height: 40px;
  padding: 11px var(--s-5);
  font-size: 0.9rem;
}

@media (hover: hover) and (pointer: fine) {
  .btn--primary:hover {
    background: #7ef0e3;
    box-shadow: 0 8px 34px rgba(102, 227, 213, 0.26);
  }

  .btn--ghost:hover {
    border-color: var(--violet-soft);
    background: rgba(154, 124, 255, 0.08);
  }
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding-block: 6px;
  color: var(--text-muted);
  font-size: 0.98rem;
  text-decoration: none;
}

.text-link .arrow {
  color: var(--cyan);
  transition: transform var(--press) var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .text-link:hover {
    color: var(--white);
  }

  .text-link:hover .arrow {
    transform: translateY(3px);
  }
}

/* ============================================================
   Section frame

   Every section is: kicker, then a heading on the left with its
   supporting line on the right, then content a --block-gap below.
   The two-column head is what keeps the right half of the page
   from reading as empty.
   ============================================================ */

.section {
  position: relative;
  padding: var(--section-y) var(--gutter);
}

/* Every section shares one veil, so adjacent sections meet with no
   seam at all. Only the two edges of the run need a transition. */
.section {
  background: var(--veil);
}

/* The veil arrives and leaves on a gradient, so the sky is never cut
   by a ruled horizontal line where the content column begins. */
.section--enter {
  background: linear-gradient(
    180deg,
    rgba(7, 11, 29, 0) 0,
    var(--veil) 200px,
    var(--veil) 100%
  );
}

.section--exit {
  background: linear-gradient(
    0deg,
    rgba(7, 11, 29, 0) 0,
    var(--veil) 200px,
    var(--veil) 100%
  );
}

.wrap {
  max-width: var(--max);
  margin-inline: auto;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: var(--head-gap) clamp(28px, 5vw, 72px);
  align-items: end;
}

.section-head .kicker {
  grid-column: 1 / -1;
}

.section-head h2 {
  grid-column: 1;
  max-width: 16ch;
}

.section-head > p:not(.kicker) {
  grid-column: 2;
  max-width: 44ch;
  color: var(--text-muted);
  /* Sits on the heading's last baseline rather than floating above it. */
  padding-bottom: 0.35em;
}

/* One section is a straight two-column split, so its head is a
   single column inside the left half instead. */
.split .section-head {
  grid-template-columns: minmax(0, 1fr);
}

.split .section-head h2,
.split .section-head > p:not(.kicker) {
  grid-column: 1;
  max-width: 20ch;
}

.split .section-head > p:not(.kicker) {
  max-width: 42ch;
  padding-bottom: 0;
}

/* ============================================================
   Hero
   ============================================================ */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  /* The masthead is sticky, so it still takes its height out of the
     flow. A plain 100svh pushed the scroll cue below the fold. */
  min-height: min(calc(100svh - 78px), 1040px);
  padding: clamp(48px, 8vw, 104px) var(--gutter) clamp(72px, 9vw, 128px);
}

/* The scrim follows the copy: darkest under the centre column, open
   at the corners so the constellations stay readable around it. */
.hero::before {
  content: '';
  position: absolute;
  /* Runs up behind the masthead. Stopping at the hero's own top edge
     drew a hard horizontal seam across the sky where the wash began. */
  inset: -120px 0 0 0;
  pointer-events: none;
  background: radial-gradient(
    64% 56% at 50% 56%,
    rgba(7, 11, 29, 0.88) 0%,
    rgba(7, 11, 29, 0.66) 45%,
    rgba(7, 11, 29, 0.24) 72%,
    transparent 100%
  );
}

.hero > * {
  position: relative;
}

.hero-copy {
  display: grid;
  justify-items: center;
  gap: clamp(22px, 2.6vw, 34px);
  width: 100%;
  text-align: center;
}

.hero h1 .line {
  display: block;
}

.hero h1 .glow {
  color: var(--violet-soft);
  font-style: italic;
  font-weight: 400;
}

.hero .lede {
  max-width: 52ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--s-3) var(--s-6);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--s-2) var(--s-5);
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--text-subtle);
}

.hero-meta li {
  list-style: none;
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: clamp(20px, 4vw, 40px);
  translate: -50% 0;
  display: none;
  flex-direction: column;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.scroll-cue .track {
  position: relative;
  order: 2;
  width: 1px;
  height: 46px;
  overflow: hidden;
  background: linear-gradient(180deg, var(--cyan), transparent);
}

.scroll-cue .track::after {
  content: '';
  position: absolute;
  inset-inline: 0;
  height: 12px;
  background: var(--cyan);
  animation: cue 2.6s var(--ease-in-out) infinite;
}

/* Short windows need the space for the copy more than for a hint. */
@media (min-width: 1001px) and (min-height: 720px) {
  .scroll-cue {
    display: flex;
  }
}

@keyframes cue {
  0% {
    transform: translateY(-14px);
    opacity: 0;
  }

  35% {
    opacity: 1;
  }

  100% {
    transform: translateY(46px);
    opacity: 0;
  }
}

/* ============================================================
   The loop
   ============================================================ */

.loop {
  position: relative;
  margin-top: var(--block-gap);
}

/* The track sits on the dot row, not over the whole block, so the
   drawn line passes through the centre of every marker at any width. */
.loop-track {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 26px;
  pointer-events: none;
}

.loop-track svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* Drawn state is the default. Only script sets "pending", so a script
   failure leaves the line complete rather than invisible. */
.loop-track path {
  fill: none;
  stroke: url(#loopGradient);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-dasharray: var(--len, none);
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 1200ms var(--ease-out);
}

[data-draw='pending'] .loop-track path {
  stroke-dashoffset: var(--len, 0);
}

.loop-steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.loop-step {
  position: relative;
  display: grid;
  gap: var(--s-3);
  align-content: start;
  padding-top: 44px;
}

.loop-step__dot {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--ink-elevated);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-subtle);
  transition:
    border-color var(--enter) var(--ease-out),
    color var(--enter) var(--ease-out),
    box-shadow var(--enter) var(--ease-out);
}

.loop-step[data-lit='true'] .loop-step__dot {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 22px rgba(102, 227, 213, 0.4);
}

.loop-step h3 {
  font-size: 1.14rem;
}

.loop-step p {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.5;
}

/* ============================================================
   Entry types
   ============================================================ */

.types {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: clamp(28px, 4vw, 60px);
  align-items: start;
  margin-top: var(--block-gap);
}


.type-list {
  display: grid;
  gap: var(--s-2);
  margin: 0;
  padding: 0;
}

.type-tab {
  --accent: var(--violet-soft);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--s-1) var(--s-4);
  padding: var(--s-4) var(--s-5);
  border: 1px solid transparent;
  border-radius: var(--r-md);
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition:
    background-color var(--press) var(--ease-out),
    border-color var(--press) var(--ease-out),
    transform var(--press) var(--ease-out);
}

.type-tab:active {
  transform: scale(0.99);
}

.type-tab__glyph {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent);
  border-radius: var(--r-sm);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
  font-size: 1.05rem;
}

.type-tab__name {
  color: var(--white);
  font-weight: 600;
  font-size: 1.02rem;
}

.type-tab__tag {
  color: var(--text-subtle);
  font-size: 0.9rem;
}

.type-tab[aria-selected='true'] {
  border-color: color-mix(in srgb, var(--accent) 34%, transparent);
  background: color-mix(in srgb, var(--accent) 9%, transparent);
}

.type-tab[aria-selected='true'] .type-tab__tag {
  color: var(--text-muted);
}

@media (hover: hover) and (pointer: fine) {
  .type-tab:hover:not([aria-selected='true']) {
    border-color: var(--hairline);
    background: rgba(174, 184, 216, 0.05);
  }
}

.capture-mock {
  --accent: var(--violet-soft);
  display: grid;
  gap: var(--s-5);
  padding: var(--pad-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  background: var(--card-solid);
  box-shadow: 0 40px 90px -50px rgba(2, 5, 16, 0.95);
}

.capture-mock__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding-bottom: var(--s-4);
  border-bottom: 1px solid var(--hairline);
}

.capture-mock__title {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  color: var(--white);
  font-weight: 600;
}

.capture-mock__title .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 14px color-mix(in srgb, var(--accent) 70%, transparent);
  transition: background-color var(--enter) var(--ease-out);
}

.capture-mock__prompt {
  min-height: 3.1em;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  line-height: 1.22;
  color: var(--text-muted);
}

.capture-mock__prompt .caret {
  display: inline-block;
  width: 2px;
  height: 0.9em;
  translate: 0 0.08em;
  background: var(--accent);
  animation: blink 1.15s steps(1) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.capture-mock__controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-2);
}

.capture-mock__save {
  margin-left: auto;
}

.chip {
  padding: 7px var(--s-3);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--text-subtle);
  white-space: nowrap;
}

.chip--on {
  border-color: rgba(102, 227, 213, 0.45);
  background: rgba(102, 227, 213, 0.08);
  color: var(--cyan);
}

/* ============================================================
   Perspective registry
   ============================================================ */

.registry {
  display: grid;
  gap: var(--s-7);
  margin-top: var(--block-gap);
}

.registry-group {
  display: grid;
  grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
  gap: var(--s-3) clamp(24px, 4vw, 56px);
  align-items: start;
  padding-top: var(--s-6);
  border-top: 1px solid var(--hairline);
}

.registry-group__label {
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
}

.registry-items {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.registry-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: var(--s-1) var(--s-4);
  padding: var(--s-3) var(--s-3) var(--s-3) var(--s-2);
  border-radius: var(--r-sm);
  transition: background-color var(--press) var(--ease-out);
}

.registry-item__sigil {
  grid-row: span 2;
  font-size: 1.35rem;
  line-height: 1.2;
  text-align: center;
  color: var(--text-subtle);
  transition:
    color var(--enter) var(--ease-out),
    transform var(--enter) var(--ease-out);
}

.registry-item__name {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--s-1) var(--s-3);
  color: var(--white);
  font-weight: 600;
}

.registry-item__from {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--text-subtle);
}

.registry-item__desc {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.45;
}

@media (hover: hover) and (pointer: fine) {
  .registry-item:hover {
    background: rgba(154, 124, 255, 0.07);
  }

  .registry-item:hover .registry-item__sigil {
    color: var(--violet-soft);
    transform: rotate(-8deg) scale(1.12);
  }
}

.disclosure {
  display: grid;
  gap: var(--s-3);
  max-width: 74ch;
  margin-top: var(--s-7);
  padding: var(--s-6);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: rgba(13, 20, 48, 0.55);
}

.disclosure .kicker {
  color: var(--amber);
}

.disclosure p:not(.kicker) {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--text-muted);
}

/* ============================================================
   Panels and evidence
   ============================================================ */

.panel {
  display: grid;
  gap: var(--s-5);
  padding: var(--pad-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  background: var(--card);
}

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding-bottom: var(--s-4);
  border-bottom: 1px solid var(--hairline);
}

.panel__foot {
  display: flex;
  gap: var(--s-5);
  padding-top: var(--s-4);
  border-top: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-subtle);
}

.panel--wide {
  margin-top: var(--block-gap);
}

.evidence {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(16px, 2vw, 24px);
  align-items: start;
  margin-top: clamp(16px, 2vw, 24px);
}

.quota {
  font-family: var(--font-mono);
  line-height: 1.1;
  text-align: right;
}

.quota b {
  display: block;
  font-weight: 500;
  font-size: 1.4rem;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.quota span {
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.claim {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.1vw, 1.95rem);
  line-height: 1.25;
  color: var(--white);
}

.cites {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.cite {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-2) var(--s-3);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: rgba(102, 227, 213, 0.05);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
  transition:
    border-color var(--press) var(--ease-out),
    color var(--press) var(--ease-out);
}

.cite::before {
  content: '';
  flex: none;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
}

@media (hover: hover) and (pointer: fine) {
  .cite:hover {
    border-color: var(--cyan-strong);
    color: var(--white);
  }
}

.counter {
  border-color: rgba(242, 185, 103, 0.3);
}

.counter .panel__head {
  border-bottom-color: rgba(242, 185, 103, 0.2);
}

.counter .kicker {
  color: var(--amber);
}

.counter p:not(.kicker) {
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.55;
}

.counter .cite::before {
  background: var(--amber);
}

/* The Insights pattern card, rebuilt in markup so its chart draws. */
.pattern-card {
  margin: 0;
}

.pattern-card__chart {
  width: 100%;
  aspect-ratio: 16 / 7.5;
  border-radius: var(--r-md);
  background: radial-gradient(120% 140% at 50% 0%, rgba(102, 227, 213, 0.07), transparent 70%);
}

.pattern-card__chart svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.pattern-card p {
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.5;
}

.tag {
  flex: none;
  padding: 5px 11px;
  border-radius: var(--r-pill);
  background: rgba(102, 227, 213, 0.13);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cyan);
  white-space: nowrap;
}

/* Drawn state is the default here too; only script sets "pending". */
.constellation-line {
  fill: none;
  stroke: var(--cyan-strong);
  stroke-width: 1.25;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.75;
  stroke-dasharray: var(--len, none);
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 900ms var(--ease-out) 140ms;
}

.constellation-node {
  fill: var(--cyan);
  opacity: 1;
  transform: scale(1);
  transform-box: fill-box;
  transform-origin: center;
  transition:
    opacity 340ms var(--ease-out),
    transform 340ms var(--ease-out);
}

[data-draw='pending'] .constellation-line {
  stroke-dashoffset: var(--len, 0);
}

[data-draw='pending'] .constellation-node {
  opacity: 0;
  transform: scale(0.5);
}

.constellation-node:nth-child(1) { transition-delay: 180ms; }
.constellation-node:nth-child(2) { transition-delay: 250ms; }
.constellation-node:nth-child(3) { transition-delay: 320ms; }
.constellation-node:nth-child(4) { transition-delay: 390ms; }
.constellation-node:nth-child(5) { transition-delay: 460ms; }
.constellation-node:nth-child(6) { transition-delay: 530ms; }
.constellation-node:nth-child(7) { transition-delay: 600ms; }

/* ============================================================
   Terms

   Two columns of pairs rather than one full-width list. A single
   column left the right half of the section empty and stretched
   every definition past a comfortable line length.
   ============================================================ */

.terms {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 clamp(28px, 5vw, 72px);
  margin: var(--block-gap) 0 0;
}

.term {
  display: grid;
  gap: var(--s-2);
  align-content: start;
  padding: var(--s-6) 0;
  border-top: 1px solid var(--hairline);
}

/* The first row of each column carries the rule that opens the block. */
.term:last-child {
  border-bottom: 1px solid var(--hairline);
}

.term:nth-last-child(2) {
  border-bottom: 1px solid var(--hairline);
}

.term dt {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white);
}

.term dd {
  max-width: 46ch;
  margin: 0;
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.55;
}

/* ============================================================
   Collectives
   ============================================================ */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 60px);
  align-items: center;
}

.flow {
  display: grid;
  gap: var(--s-3);
}

.flow-node {
  display: grid;
  gap: var(--s-1);
  padding: var(--s-4) var(--s-5);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: rgba(13, 20, 48, 0.6);
}

.flow-node b {
  font-weight: 600;
  font-size: 0.98rem;
}

.flow-node span {
  color: var(--text-subtle);
  font-size: 0.9rem;
}

.flow-node--private {
  border-color: rgba(154, 124, 255, 0.34);
}

.flow-node--shared {
  border-color: rgba(102, 227, 213, 0.34);
}

.flow-arrow {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  justify-self: start;
  margin-left: var(--s-6);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-subtle);
}

.flow-arrow::before {
  content: '';
  width: 1px;
  height: 26px;
  background: linear-gradient(180deg, var(--violet), var(--cyan));
}

/* ============================================================
   Closing and footer
   ============================================================ */

.closing {
  position: relative;
  display: grid;
  justify-items: center;
  gap: var(--s-6);
  padding: clamp(104px, 14vw, 200px) var(--gutter);
  text-align: center;
}

/* A horizon, so the page ends on the sky rather than on a wall. */
.closing::before {
  content: '';
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 62%;
  background: radial-gradient(80% 100% at 50% 100%, rgba(154, 124, 255, 0.2), transparent 70%);
  pointer-events: none;
}

.closing > * {
  position: relative;
}

.closing .kicker--rule {
  justify-content: center;
}

.closing h2 {
  max-width: 18ch;
}

.closing .lede {
  max-width: 48ch;
}

.site-foot {
  padding: var(--s-7) var(--gutter) var(--s-9);
  border-top: 1px solid var(--hairline);
  background: var(--veil);
}

.site-foot .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3) var(--s-7);
  font-size: 0.86rem;
  color: var(--text-subtle);
}

.site-foot nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2) var(--s-6);
}

.site-foot a {
  color: var(--text-muted);
  text-decoration: none;
}

@media (hover: hover) and (pointer: fine) {
  .site-foot a:hover {
    color: var(--white);
  }
}

/* ============================================================
   Reveal

   Section headers and the loop only. Content that carries the
   argument is on the page at load; this adds arrival, not
   availability.
   ============================================================ */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 620ms var(--ease-out),
    transform 620ms var(--ease-out);
}

.reveal[data-shown='true'] {
  opacity: 1;
  transform: none;
}

.reveal[data-delay='1'] {
  transition-delay: 90ms;
}

.reveal[data-delay='2'] {
  transition-delay: 180ms;
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 1000px) {
  /* Narrow viewports have no room either side of the copy, so the wash
     becomes an ellipse rather than a circle and holds the full width. */
  .hero::before {
    background: radial-gradient(
      120% 52% at 50% 54%,
      rgba(7, 11, 29, 0.9) 0%,
      rgba(7, 11, 29, 0.7) 48%,
      rgba(7, 11, 29, 0.28) 76%,
      transparent 100%
    );
  }

  .hero {
    min-height: min(calc(100svh - 78px), 820px);
  }

  .section-head,
  .split .section-head {
    grid-template-columns: minmax(0, 1fr);
  }

  .section-head h2,
  .section-head > p:not(.kicker) {
    grid-column: 1;
    max-width: 22ch;
  }

  .section-head > p:not(.kicker) {
    max-width: 48ch;
    padding-bottom: 0;
  }

  .loop-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--s-6) var(--s-5);
  }

  .loop-track {
    display: none;
  }

  .types,
  .evidence,
  .split,
  .terms {
    grid-template-columns: minmax(0, 1fr);
  }

  .registry-group {
    grid-template-columns: minmax(0, 1fr);
  }

  .term:nth-last-child(2) {
    border-bottom: none;
  }

  .sky-label {
    display: none;
  }
}

@media (max-width: 720px) {
  .nav-links {
    display: none;
  }

  .loop-steps {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }

  .registry-item {
    grid-template-columns: 28px minmax(0, 1fr);
    gap: var(--s-1) var(--s-3);
  }

  .capture-mock__save {
    margin-left: 0;
  }

  .term dd {
    max-width: none;
  }
}

/* ============================================================
   Reduced motion

   Movement is replaced by presence, never by a missing element.
   The sky keeps its stars; it stops drifting, handled in sky.js.
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .scroll-cue .track::after,
  .capture-mock__prompt .caret {
    display: none;
  }
}