/* ==========================================================================
   BlueWonder Algo — "Prospetto"
   A document, not a landing page. Hairlines instead of shadows, rectangles
   instead of cards, tabular figures, real section numbering.
   Type: Archivo (voice) + IBM Plex Mono (data, labels, annotation).
   ========================================================================== */

/* ---------------------------------------------------------------- tokens */

:root {
  /* Paper and ink. Cool-biased neutrals, chosen rather than inherited. */
  --c-paper:      #fcfcfd;
  --c-panel:      #ffffff;
  --c-sunken:     #f4f5f7;
  --c-ink:        #12151a;
  --c-ink-2:      #545c68;   /* 6.4:1 on paper */
  --c-ink-3:      #767e8b;   /* 4.6:1 on paper */
  --c-rule:       #d7dbe1;
  --c-rule-soft:  #e8eaee;

  /* Accent — set per palette below. */
  --c-accent:     #1b3a8f;
  --c-accent-ink: #16306f;
  --c-accent-wash:#eef1f9;

  --c-pos:        #1f6b3f;
  --c-neg:        #9c2f2f;

  --rule:      1px solid var(--c-rule);
  --rule-soft: 1px solid var(--c-rule-soft);

  /* Type */
  --ff-sans: "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --ff-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --fs-display: clamp(2.4rem, 1.3rem + 3.9vw, 4.35rem);
  --fs-h1:      clamp(2.05rem, 1.3rem + 2.7vw, 3.3rem);
  --fs-h2:      clamp(1.55rem, 1.15rem + 1.5vw, 2.25rem);
  --fs-h3:      clamp(1.06rem, 0.98rem + 0.3vw, 1.22rem);
  --fs-lead:    clamp(1.02rem, 0.96rem + 0.28vw, 1.16rem);
  --fs-body:    1rem;
  --fs-small:   0.875rem;
  --fs-mono:    0.72rem;

  /* Rhythm — 4px base */
  --s1: 4px;  --s2: 8px;  --s3: 12px; --s4: 16px; --s5: 24px;
  --s6: 32px; --s7: 48px; --s8: 64px; --s9: 96px;

  --measure: 68ch;
  --gutter:  clamp(20px, 4vw, 40px);
  --shell:   1280px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* Palettes. Each shifts the accent AND the paper temperature, so switching
   changes the room, not just the trim. */

:root[data-palette="ardesia"] {
  --c-paper: #fbfbfc;  --c-sunken: #f2f3f5;
  --c-ink:   #14171c;  --c-ink-2: #545a63;  --c-ink-3: #767c86;
  --c-rule:  #d6d9de;  --c-rule-soft: #e7e9ec;
  --c-accent: #2f3742; --c-accent-ink: #1e242c; --c-accent-wash: #eef0f2;
}

:root[data-palette="prussia"] {
  --c-paper: #fcfcfd;  --c-sunken: #f2f4f8;
  --c-ink:   #12151a;  --c-ink-2: #545c68;  --c-ink-3: #767e8b;
  --c-rule:  #d7dbe3;  --c-rule-soft: #e8ebf0;
  --c-accent: #1b3a8f; --c-accent-ink: #16306f; --c-accent-wash: #eef1f9;
}

:root[data-palette="bosco"] {
  --c-paper: #fbfcfb;  --c-sunken: #f1f4f2;
  --c-ink:   #131816;  --c-ink-2: #515a55;  --c-ink-3: #737c77;
  --c-rule:  #d5dbd7;  --c-rule-soft: #e6ebe8;
  --c-accent: #16543f; --c-accent-ink: #114331; --c-accent-wash: #eaf2ee;
}

:root[data-palette="ossido"] {
  --c-paper: #fdfcfa;  --c-sunken: #f5f2ee;
  --c-ink:   #1a1613;  --c-ink-2: #5d554e;  --c-ink-3: #80776e;
  --c-rule:  #ded8d1;  --c-rule-soft: #ece7e1;
  --c-accent: #8a3d1c; --c-accent-ink: #6e3016; --c-accent-wash: #f7efe9;
}

/* ----------------------------------------------------------------- reset */

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

html { -webkit-text-size-adjust: 100%; }

body, h1, h2, h3, h4, p, figure, figcaption, dl, dd, blockquote, ul, ol {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }

body {
  background: var(--c-paper);
  color: var(--c-ink);
  font-family: var(--ff-sans);
  font-size: var(--fs-body);
  line-height: 1.62;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }

::selection { background: var(--c-accent); color: #fff; }

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

/* ------------------------------------------------------------ typography */

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.018em;
  text-wrap: balance;
}

h1, .display { font-size: var(--fs-h1); letter-spacing: -0.028em; font-weight: 700; }
.display     { font-size: var(--fs-display); }
h2           { font-size: var(--fs-h2); letter-spacing: -0.024em; font-weight: 700; }
h3           { font-size: var(--fs-h3); letter-spacing: -0.012em; }

.display em, h1 em, h2 em { font-style: normal; color: var(--c-accent); }

p { max-width: var(--measure); }

.lead {
  font-size: var(--fs-lead);
  line-height: 1.62;
  color: var(--c-ink-2);
  max-width: 62ch;
  text-wrap: pretty;
}

a { color: var(--c-accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--c-accent-ink); }

strong, b { font-weight: 600; }

/* ---------------------------------------------------------------- layout */

.wrap {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(56px, 7vw, 104px); }
.section-sunken  { background: var(--c-sunken); }
.section-surface { background: var(--c-panel); border-block: var(--rule); }

.skip-link {
  position: fixed;
  top: var(--s3);
  left: var(--s3);
  z-index: 200;
  transform: translateY(-200%);
  padding: var(--s3) var(--s5);
  background: var(--c-ink);
  color: var(--c-paper);
  font-size: var(--fs-small);
  font-weight: 500;
  text-decoration: none;
}
.skip-link:focus-visible { transform: none; color: var(--c-paper); }

/* ---------------------------------------------------------------- header */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--c-paper) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: var(--rule);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--s6);
  min-height: 68px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--s3);
  color: var(--c-ink);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
  flex: none;
}
/* The mark rides on currentColor, so it follows whichever palette is active. */
.logo-mark {
  width: 25px;
  height: 26px;
  flex: none;
  background: currentColor;
  -webkit-mask: url("/assets/img/mark.svg") center / contain no-repeat;
  mask: url("/assets/img/mark.svg") center / contain no-repeat;
}
.logo-word { font-size: 1.02rem; }
.logo-algo { color: var(--c-accent); }

.nav {
  display: flex;
  gap: clamp(var(--s4), 2.1vw, var(--s6));
  margin-inline: auto;
}
.nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--c-ink-2);
  font-size: var(--fs-small);
  font-weight: 500;
  text-decoration: none;
}
.nav a:hover,
.nav a.is-active { color: var(--c-ink); }
.nav a.is-active::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 12px;
  height: 2px;
  background: var(--c-accent);
}

.header-cta { display: flex; align-items: center; gap: var(--s3); flex: none; }

.menu-btn {
  display: none;
  width: 44px; height: 44px;
  margin-left: auto;
  padding: 0;
  background: none;
  border: var(--rule);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.menu-btn span {
  width: 17px; height: 1.5px;
  background: var(--c-ink);
  transition: transform .22s var(--ease), opacity .16s linear;
}
.header.is-open .menu-btn span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.header.is-open .menu-btn span:nth-child(2) { opacity: 0; }
.header.is-open .menu-btn span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 940px) {
  .menu-btn { display: flex; }
  .nav, .header-cta, .theme-switch { display: none; }
  .header.is-open .header-inner { flex-wrap: wrap; padding-bottom: var(--s4); }
  .header.is-open .nav {
    display: flex;
    flex-direction: column;
    gap: 0;
    width: 100%;
    margin: 0;
    border-top: var(--rule);
  }
  .header.is-open .nav a {
    min-height: 52px;
    border-bottom: var(--rule-soft);
    font-size: var(--fs-body);
  }
  .header.is-open .nav a.is-active::after {
    inset: 50% auto auto -12px;
    width: 2px;
    height: 18px;
    transform: translateY(-50%);
  }
  .header.is-open .header-cta { display: flex; width: 100%; padding-top: var(--s4); }
  .header.is-open .theme-switch {
    display: flex;
    justify-content: space-between;
    width: 100%;
    padding: var(--s4) 0 0;
    border-left: 0;
    border-top: var(--rule);
  }
  .header.is-open .theme-switch .theme-switch-label { display: block; }
  .header.is-open .header-cta .btn { flex: 1; }
}

/* --------------------------------------------------------------- buttons */

.btn {
  --btn-bg: transparent;
  --btn-fg: var(--c-ink);
  --btn-bd: var(--c-rule);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s2);
  min-height: 46px;
  padding: 0 var(--s5);
  border: 1px solid var(--btn-bd);
  border-radius: 2px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: -0.005em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .16s linear, border-color .16s linear, color .16s linear;
}

.btn-primary { --btn-bg: var(--c-accent); --btn-fg: #fff; --btn-bd: var(--c-accent); }
.btn-primary:hover { --btn-bg: var(--c-accent-ink); --btn-bd: var(--c-accent-ink); color: #fff; }

.btn-ghost:hover { --btn-bg: var(--c-accent-wash); --btn-bd: var(--c-accent); color: var(--c-accent-ink); }

.btn-quiet { --btn-bd: transparent; color: var(--c-ink-2); padding-inline: var(--s3); }
.btn-quiet:hover { color: var(--c-ink); }

/* ------------------------------------------------------------------ hero */

.hero {
  border-bottom: var(--rule);
  padding-block: clamp(48px, 6.5vw, 92px) clamp(40px, 5vw, 72px);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}

/* The copy holds the left of the hero; the field stays legible to its right. */
.hero-copy { max-width: min(680px, 60%); }
.hero-copy .display { max-width: 15ch; }
.hero-copy .lead { max-width: 48ch; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: var(--s3);
  margin-bottom: var(--s5);
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-ink-3);
}
.eyebrow::after { content: ""; flex: 1; height: 1px; background: var(--c-rule); }

.hero .lead { margin-top: var(--s5); }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s3);
  margin-top: var(--s6);
}

.hero-note {
  margin-top: var(--s6);
  padding-top: var(--s4);
  border-top: var(--rule-soft);
  max-width: 58ch;
  font-size: var(--fs-small);
  color: var(--c-ink-3);
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-copy { max-width: none; }
}

/* ------------------------------------------------------- the live field */
/* A plotter drawing on paper: seamless price-like series drifting behind the
   hero. Canvas does the motion; CSS supplies the grid and the scrim that keeps
   the headline on clean paper. */

.hero { position: relative; isolation: isolate; overflow: hidden; }

.hero-field {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.2s var(--ease);
}
.hero-field.is-live { opacity: 1; }

/* Faint ruled grid, the paper the field is drawn on. */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -3;
  background-image:
    linear-gradient(to right, var(--c-rule-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--c-rule-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 62%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 62%, transparent 100%);
  opacity: .7;
}

/* Scrim: the type side stays clean paper, the motion lives to the right. */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(100deg,
      var(--c-paper) 0%,
      color-mix(in srgb, var(--c-paper) 92%, transparent) 34%,
      color-mix(in srgb, var(--c-paper) 40%, transparent) 62%,
      transparent 100%),
    linear-gradient(to bottom,
      color-mix(in srgb, var(--c-paper) 55%, transparent) 0%,
      transparent 22%,
      transparent 68%,
      var(--c-paper) 100%);
}

@media (max-width: 900px) {
  /* On one column the type sits over the whole field, so lift the scrim. */
  .hero::after {
    background:
      linear-gradient(to bottom,
        color-mix(in srgb, var(--c-paper) 88%, transparent) 0%,
        color-mix(in srgb, var(--c-paper) 78%, transparent) 55%,
        var(--c-paper) 100%);
  }
}

/* ----------------------------------------------------------- term sheet */

.terms { border-top: var(--rule); }
.terms > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s4);
  padding: var(--s4) 0;
  border-bottom: var(--rule-soft);
}
.terms > div:last-child { border-bottom: var(--rule); }
.terms dt {
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--c-ink-3);
}
.terms dd {
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: -0.008em;
  text-align: right;
  color: var(--c-ink);
}

/* ------------------------------------------------------------------ tape */

.marquee {
  position: relative;
  border-bottom: var(--rule);
  background: var(--c-panel);
  overflow: hidden;
}
.marquee-viewport { overflow: hidden; }
.marquee-track {
  display: flex;
  width: max-content;
  animation: tape 64s linear infinite;
}
.marquee.is-paused .marquee-track { animation-play-state: paused; }
.marquee-track span {
  display: inline-flex;
  align-items: center;
  gap: var(--s5);
  padding: var(--s3) var(--s5) var(--s3) 0;
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-ink-2);
  white-space: nowrap;
}
.marquee-track b { font-weight: 500; }
.marquee-track i { font-style: normal; color: var(--c-rule); }

.marquee-pause {
  position: absolute;
  top: 50%; right: var(--gutter);
  transform: translateY(-50%);
  display: grid;
  place-items: center;
  width: 26px; height: 26px;
  padding: 0;
  border: var(--rule);
  background: var(--c-panel);
  color: var(--c-ink-2);
  cursor: pointer;
}
.marquee-pause:hover { color: var(--c-ink); border-color: var(--c-ink-3); }

@keyframes tape { to { transform: translateX(-50%); } }

/* ------------------------------------------------------------- page hero */

.page-hero {
  padding-block: clamp(44px, 5.5vw, 80px) clamp(32px, 4vw, 52px);
  border-bottom: var(--rule);
}
.page-hero .display { max-width: 20ch; }
.page-hero .lead { margin-top: var(--s5); }

/* --------------------------------------------------------- section heads */

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: var(--s5) clamp(32px, 5vw, 72px);
  align-items: start;
  padding-top: var(--s5);
  border-top: var(--rule);
  margin-bottom: clamp(32px, 4vw, 56px);
}
.section-head > div { display: contents; }

.section-head[data-section]::before {
  content: attr(data-section);
  grid-column: 1 / -1;
  margin-bottom: var(--s4);
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-accent);
}

.section-head .lead { margin: 0; }

.section-head.single { grid-template-columns: minmax(0, 1fr); }
.section-head.single > div { display: block; }
.section-head.single .lead { margin-top: var(--s4); }

@media (max-width: 820px) {
  .section-head { grid-template-columns: minmax(0, 1fr); }
}

/* ------------------------------------------------------------ principles */

.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: var(--rule);
}

.principle {
  padding: var(--s5) var(--s5) var(--s6) 0;
  border-bottom: var(--rule);
}
.principle + .principle {
  padding-left: var(--s5);
  border-left: var(--rule-soft);
}

.principle .num {
  display: block;
  margin-bottom: var(--s3);
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--c-accent);
}

.principle :is(h2, h3) { font-size: var(--fs-h3); letter-spacing: -0.012em; font-weight: 600; }
.principle p { margin-top: var(--s3); font-size: var(--fs-small); color: var(--c-ink-2); }

@media (max-width: 860px) {
  .principles { grid-template-columns: minmax(0, 1fr); }
  .principle, .principle + .principle { padding: var(--s5) 0; border-left: 0; }
}

/* ---------------------------------------------------------------- ledger */
/* Key figures as a ruled strip — a factsheet row, not four cards. */

.ledger, .stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: var(--rule);
  border-bottom: var(--rule);
  margin-top: clamp(32px, 4vw, 56px);
}

.ledger-row, .stat { padding: var(--s5) var(--s5) var(--s5) 0; }
.ledger-row + .ledger-row, .stat + .stat {
  padding-left: var(--s5);
  border-left: var(--rule-soft);
}

.ledger-key, .stat b {
  display: block;
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-ink-3);
}

.ledger-val {
  margin-top: var(--s3);
  font-size: clamp(1.9rem, 1.3rem + 1.7vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--c-ink);
}
.ledger-val .unit {
  font-size: 0.5em;
  font-weight: 500;
  vertical-align: super;
  letter-spacing: 0;
  color: var(--c-accent);
}

.ledger-note, .stat span {
  display: block;
  margin-top: var(--s3);
  font-size: var(--fs-small);
  line-height: 1.5;
  color: var(--c-ink-2);
}
.stat span { margin-top: var(--s2); }

@media (max-width: 900px) {
  .ledger, .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ledger-row:nth-child(odd), .stat:nth-child(odd) { padding-left: 0; border-left: 0; }
  .ledger-row:nth-child(n+3), .stat:nth-child(n+3) { border-top: var(--rule-soft); }
}
@media (max-width: 520px) {
  .ledger, .stats { grid-template-columns: minmax(0, 1fr); }
  .ledger-row, .stat { padding-left: 0; border-left: 0; }
  .ledger-row + .ledger-row, .stat + .stat { border-top: var(--rule-soft); }
}

/* ----------------------------------------------------------------- slots */

.slots {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s5);
}

.slot {
  display: flex;
  flex-direction: column;
  border: var(--rule);
  background: var(--c-panel);
  transition: border-color .16s linear;
}
.slot:hover { border-color: var(--c-ink-3); }

.slot-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  border-bottom: var(--rule);
  background: var(--c-sunken);
  color: var(--c-ink-3);
  overflow: hidden;
}
.slot-frame svg { width: 74%; height: auto; }

.slot-badge {
  position: absolute;
  top: var(--s3);
  left: var(--s3);
  padding: 3px var(--s2);
  border: 1px solid var(--c-rule);
  background: var(--c-panel);
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-ink-2);
}

.slot-body { display: flex; flex-direction: column; gap: var(--s3); flex: 1; padding: var(--s5); }
.slot-body :is(h2, h3) { font-size: var(--fs-h3); }
.slot-body p { margin: 0; font-size: var(--fs-small); color: var(--c-ink-2); }

.slot-link {
  margin-top: auto;
  padding-top: var(--s3);
  border-top: var(--rule-soft);
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-ink-3);
}

@media (max-width: 900px) { .slots { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .slots { grid-template-columns: minmax(0, 1fr); } }

/* ------------------------------------------------------------------ spec */
/* Ruled rows. Term on the left, definition on the right. */

.spec { border-top: var(--rule); }

.spec-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr);
  gap: var(--s4) clamp(24px, 4vw, 56px);
  padding-block: var(--s5);
  border-bottom: var(--rule-soft);
}
.spec-row:last-child { border-bottom: var(--rule); }

.spec-row :is(h2, h3) { font-size: var(--fs-h3); font-weight: 600; }
.spec-row p { margin: 0; font-size: var(--fs-small); color: var(--c-ink-2); max-width: 60ch; }

@media (max-width: 720px) {
  .spec-row { grid-template-columns: minmax(0, 1fr); gap: var(--s2); }
}

/* ----------------------------------------------------------------- split */

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: var(--rule);
  border-bottom: var(--rule);
}

.panel { padding: var(--s5) var(--s5) var(--s6) 0; }
.panel + .panel { padding-left: var(--s5); border-left: var(--rule-soft); }
.panel :is(h2, h3) { font-size: var(--fs-h3); }
.panel .lead { margin-top: var(--s3); }

.list { display: grid; gap: var(--s3); margin-top: var(--s4); }
.list li {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: var(--s3);
  align-items: start;
  font-size: var(--fs-small);
  color: var(--c-ink-2);
}
.list li svg { width: 15px; height: 15px; margin-top: 3px; }
.list li.yes svg { color: var(--c-pos); }
.list li.no  svg { color: var(--c-neg); }

@media (max-width: 760px) {
  .split { grid-template-columns: minmax(0, 1fr); }
  .panel, .panel + .panel { padding: var(--s5) 0; border-left: 0; }
  .panel + .panel { border-top: var(--rule-soft); }
}

/* -------------------------------------------------------- band / cta row */

.custom-path, .cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: var(--s5) clamp(32px, 5vw, 72px);
  align-items: start;
}

.custom-path {
  align-items: center;
  margin-top: clamp(32px, 4vw, 56px);
  padding-top: var(--s6);
  border-top: var(--rule);
}
.custom-path :is(h2, h3) { font-size: var(--fs-h2); }
.custom-path p { margin-top: var(--s3); font-size: var(--fs-small); color: var(--c-ink-2); }
.custom-path > div:last-child { justify-self: start; }

@media (max-width: 820px) {
  .custom-path, .cta-grid { grid-template-columns: minmax(0, 1fr); }
}

/* ------------------------------------------------------------------ team */

.team {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: var(--rule);
  border-bottom: var(--rule);
}
.member { padding: var(--s5) var(--s5) var(--s6) 0; }
.member + .member { padding-left: var(--s5); border-left: var(--rule-soft); }

.avatar {
  width: 40px; height: 40px;
  margin-bottom: var(--s4);
  border: var(--rule);
  background: var(--c-sunken);
}
.member :is(h2, h3) { font-size: var(--fs-h3); }
.member span {
  display: block;
  margin-top: var(--s2);
  font-size: var(--fs-small);
  color: var(--c-ink-2);
}

@media (max-width: 760px) {
  .team { grid-template-columns: minmax(0, 1fr); }
  .member, .member + .member { padding: var(--s5) 0; border-left: 0; }
  .member + .member { border-top: var(--rule-soft); }
}

/* ------------------------------------------------------------------- faq */

.faq { border-top: var(--rule); max-width: 78ch; }
.faq details { border-bottom: var(--rule-soft); }

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s4);
  min-height: 56px;
  padding-block: var(--s3);
  font-weight: 600;
  letter-spacing: -0.012em;
  cursor: pointer;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  flex: none;
  font-family: var(--ff-mono);
  font-size: 1.1rem;
  color: var(--c-accent);
}
.faq details[open] summary::after { content: "\2212"; }
.faq details p { padding-bottom: var(--s5); font-size: var(--fs-small); color: var(--c-ink-2); }

/* ----------------------------------------------------------- legal prose */

.legal { max-width: 72ch; }
.legal :is(h2, h3) {
  margin-top: var(--s7);
  padding-top: var(--s4);
  border-top: var(--rule);
  font-size: var(--fs-h3);
}
.legal :is(h2, h3):first-child { margin-top: 0; }
.legal p { margin-top: var(--s4); color: var(--c-ink-2); }

/* ----------------------------------------------------------------- forms */

.form { padding: var(--s6); border: var(--rule); background: var(--c-panel); }
.auth-card { max-width: 480px; }

.form-fields { display: grid; gap: var(--s4); }

.field { display: grid; gap: var(--s2); }
.field label {
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--c-ink-2);
}
.field :is(input, select, textarea) {
  min-height: 46px;
  padding: var(--s3) var(--s4);
  border: var(--rule);
  border-radius: 2px;
  background: var(--c-paper);
  font-size: var(--fs-small);
  transition: border-color .16s linear;
}
.field :is(input, select, textarea):focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: inset 0 0 0 1px var(--c-accent);
}

.check {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: var(--s3);
  align-items: start;
  min-height: 44px;
  padding-block: var(--s2);
  font-size: var(--fs-small);
  color: var(--c-ink-2);
  cursor: pointer;
}
.check input {
  width: 20px; height: 20px;
  margin: 2px 0 0;
  accent-color: var(--c-accent);
  cursor: pointer;
}

.form .btn { width: 100%; }

.form-ok { display: none; align-items: flex-start; gap: var(--s3); font-size: var(--fs-small); color: var(--c-ink-2); }
.form-ok svg { flex: none; width: 20px; height: 20px; margin-top: 1px; color: var(--c-pos); }
.form.is-sent .form-fields { display: none; }
.form.is-sent .form-ok { display: flex; }

/* ---------------------------------------------------------------- footer */

.footer {
  border-top: var(--rule);
  background: var(--c-panel);
  padding-block: clamp(48px, 6vw, 80px) var(--s6);
  font-size: var(--fs-small);
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 56px);
  padding-bottom: var(--s7);
}
.footer-brand p { margin-top: var(--s4); max-width: 40ch; color: var(--c-ink-2); }

.footer-label {
  margin-bottom: var(--s4);
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-ink-3);
}
.footer nav { display: grid; gap: var(--s1); }
.footer nav a {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  color: var(--c-ink-2);
  text-decoration: none;
}
.footer nav a:hover { color: var(--c-accent); text-decoration: underline; }

.disclaimer {
  padding-block: var(--s5);
  border-top: var(--rule);
  max-width: none;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--c-ink-3);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s3);
  padding-top: var(--s5);
  border-top: var(--rule);
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.08em;
  color: var(--c-ink-3);
}
.footer-bottom a {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding-block: var(--s1);
  color: var(--c-ink-2);
  text-decoration: none;
}
.footer-bottom a:hover { color: var(--c-accent); text-decoration: underline; }

@media (max-width: 860px) {
  .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .footer-top { grid-template-columns: minmax(0, 1fr); }
}

/* ---------------------------------------------------------------- cookie */

.cookie {
  position: fixed;
  left: var(--gutter);
  bottom: var(--gutter);
  z-index: 150;
  width: min(400px, calc(100vw - var(--gutter) * 2));
  padding: var(--s5);
  border: 1px solid var(--c-ink);
  background: var(--c-panel);
  transform: translateY(calc(100% + var(--gutter) + 8px));
  visibility: hidden;
  transition: transform .32s var(--ease), visibility 0s linear .32s;
}
.cookie.is-on { transform: none; visibility: visible; transition-delay: 0s; }
.cookie strong {
  display: block;
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.cookie p { margin-top: var(--s3); font-size: var(--fs-small); color: var(--c-ink-2); }
.cookie-actions { display: flex; gap: var(--s3); margin-top: var(--s5); }
.cookie-actions .btn { flex: 1; }

/* -------------------------------------------------------- palette switch */
/* Lives in the header so it never sits on top of page content. */

.theme-switch {
  display: flex;
  align-items: center;
  gap: var(--s3);
  padding-left: var(--s4);
  border-left: var(--rule);
  flex: none;
}

.theme-switch-label {
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-ink-3);
}
@media (max-width: 1180px) { .theme-switch-label { display: none; } }

.theme-switch-list { display: flex; gap: var(--s1); }

.theme-switch button {
  position: relative;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 1px solid color-mix(in srgb, var(--c-ink) 18%, transparent);
  background: var(--sw);
  cursor: pointer;
}
.theme-switch button::after {
  content: "";
  position: absolute;
  inset: -4px;
  border: 1px solid transparent;
}
.theme-switch button[aria-pressed="true"]::after { border-color: var(--c-ink); }

/* ---------------------------------------------------------------- motion */

.js-ready .reveal { opacity: 0; transform: translateY(10px); }
.js-ready .reveal.is-in {
  opacity: 1;
  transform: none;
  transition: opacity .5s var(--ease) var(--delay, 0ms),
              transform .5s var(--ease) var(--delay, 0ms);
}


@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .js-ready .reveal { opacity: 1; transform: none; }
}