/* Segundo Cérebro · método 4C — folha autoral */

:root {
  --paper:        #FCFCFA;
  --paper-sunk:   #F3F3EE;
  --ink:          #0A0D25;
  --ink-soft:     rgba(10, 13, 37, 0.78);
  --ink-mute:     rgba(10, 13, 37, 0.62);
  --ink-icon:     rgba(10, 13, 37, 0.45);
  --rule:         rgba(10, 13, 37, 0.13);
  --rule-soft:    rgba(10, 13, 37, 0.07);
  --rule-strong:  rgba(10, 13, 37, 0.28);
  --mark:         #FFD60A;
  --mark-soft:    rgba(255, 214, 10, 0.42);
  --mark-ghost:   rgba(255, 214, 10, 0.16);
  --on-ink:       #F6F6F2;
  --on-ink-soft:  rgba(246, 246, 242, 0.68);
  --on-ink-mute:  rgba(246, 246, 242, 0.55);
  --rule-on-ink:  rgba(246, 246, 242, 0.16);

  --serif: "Literata", Georgia, "Times New Roman", serif;
  --sans:  "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono:  "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --r-xs: 2px;
  --r-sm: 3px;
  --r-md: 5px;

  --shadow-note:  0 1px 1px rgba(10, 13, 37, 0.05), 0 3px 8px -5px rgba(10, 13, 37, 0.16);
  --shadow-lift:  0 1px 2px rgba(10, 13, 37, 0.06), 0 6px 13px -8px rgba(10, 13, 37, 0.20);

  --gut: clamp(20px, 4vw, 72px);
  --col: min(1250px, 100% - var(--gut) * 2);
  --read: min(810px, 100% - var(--gut) * 2);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scrollbar-color: var(--ink-mute) var(--paper-sunk);
  overflow-x: hidden;
}

body {
  margin: 0;
  background-color: var(--paper);
  background-image: radial-gradient(circle at 1px 1px, rgba(10, 13, 37, 0.105) 1.15px, transparent 0);
  background-size: 26px 26px;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.62;
  font-optical-sizing: auto;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img, svg, iframe { display: block; max-width: 100%; }
img { height: auto; }

h1, h2, h3, h4 { margin: 0; font-weight: 400; text-wrap: balance; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

a { color: inherit; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

/* ---------- browser surfaces ---------- */

::selection { background: var(--mark); color: var(--ink); }

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

.on-ink :focus-visible { outline-color: var(--mark); }

::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: var(--paper-sunk); }
::-webkit-scrollbar-thumb {
  background: var(--ink-mute);
  border: 3px solid var(--paper-sunk);
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover { background: var(--ink-mute); }

/* ---------- primitives ---------- */

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

.sect { padding-block: clamp(56px, 8vw, 116px); position: relative; }
.sect--tight { padding-block: clamp(40px, 5vw, 68px); }

.sect--sunk {
  background: var(--paper-sunk);
  border-block: 1px solid var(--rule);
}

.sect--ink {
  background: var(--ink);
  color: var(--on-ink);
  background-image: radial-gradient(circle at 1px 1px, rgba(246, 246, 242, 0.10) 1.15px, transparent 0);
  background-size: 26px 26px;
}

.skip {
  position: fixed;
  left: 12px;
  top: 12px;
  transform: translateY(-300%);
  background: var(--ink);
  color: var(--on-ink);
  padding: 12px 18px;
  z-index: 60;
  font-family: var(--sans);
  font-size: 13px;
}
.skip:focus { transform: none; }

/* type roles */

.d1 {
  font-size: clamp(34px, 4.5vw, 66px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  font-weight: 300;
}

.d2 {
  font-size: clamp(28px, 3.4vw, 49px);
  line-height: 1.1;
  letter-spacing: -0.022em;
  font-weight: 300;
}

.d3 {
  font-size: clamp(21px, 2.4vw, 28px);
  line-height: 1.24;
  letter-spacing: -0.014em;
  font-weight: 400;
}

.lede {
  font-size: clamp(19px, 1.9vw, 23px);
  line-height: 1.55;
  color: var(--ink-soft);
}
.on-ink .lede { color: var(--on-ink-soft); }

.body + .body { margin-top: 1.05em; }

.meta {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.on-ink .meta { color: var(--on-ink-soft); }

.cap {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--ink-mute);
}

.byline {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

em { font-style: italic; }

strong, b { font-weight: 600; }

/* the capture gesture: highlighter, never fill */
.mk {
  background-image: linear-gradient(
    to bottom,
    transparent 14%,
    var(--mark-soft) 14%,
    var(--mark-soft) 92%,
    transparent 92%
  );
  padding-inline: 0.08em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.on-ink .mk {
  background-image: linear-gradient(
    to bottom,
    transparent 14%,
    rgba(255, 214, 10, 0.26) 14%,
    rgba(255, 214, 10, 0.26) 92%,
    transparent 92%
  );
  color: #fff;
}

/* inline wikilink — real Obsidian syntax as typography */
.wl {
  font-family: var(--mono);
  font-size: 0.92em;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--rule-strong);
  padding-bottom: 1px;
  white-space: nowrap;
}
.wl::before, .wl::after { content: "[["; color: var(--ink-mute); }
.wl::after { content: "]]"; }
.on-ink .wl { color: var(--on-ink); border-bottom-color: var(--rule-on-ink); }
.on-ink .wl::before, .on-ink .wl::after { color: var(--on-ink-mute); }

a.wl { text-decoration: none; transition: background 160ms var(--ease), border-color 160ms var(--ease); }
a.wl:hover { background: var(--mark-ghost); border-bottom-color: var(--ink); }

.lnk {
  color: inherit;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: var(--rule-strong);
  transition: text-decoration-color 160ms var(--ease);
}
.lnk:hover { text-decoration-color: var(--ink); }
.on-ink .lnk { text-decoration-color: var(--rule-on-ink); }
.on-ink .lnk:hover { text-decoration-color: var(--mark); }

/* ---------- actions ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.015em;
  line-height: 1;
  padding: 17px 26px;
  border-radius: var(--r-sm);
  text-decoration: none;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--on-ink);
  transition: background 180ms var(--ease), color 180ms var(--ease), box-shadow 180ms var(--ease);
  box-shadow: var(--shadow-note);
}

.btn .ico { transition: transform 260ms var(--ease); }
.btn:hover { background: #16193a; box-shadow: var(--shadow-lift); }
.btn:hover .ico { transform: translateX(3px); }

.btn--mark {
  background: var(--mark);
  border-color: var(--mark);
  color: var(--ink);
}
.btn--mark:hover { background: #ffe14d; border-color: #ffe14d; }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  box-shadow: none;
}
.btn--ghost:hover { background: var(--ink); color: var(--on-ink); }

.btn--wide { width: 100%; justify-content: center; }

.on-ink .btn { border-color: var(--on-ink); background: var(--on-ink); color: var(--ink); }
.on-ink .btn:hover { background: #fff; }

/* ---------- topbar ---------- */

.topbar {
  background: var(--ink);
  color: var(--on-ink);
  border-bottom: 1px solid rgba(255, 214, 10, 0.28);
}

.topbar__in {
  width: var(--col);
  margin-inline: auto;
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-block: 9px;
}

.topbar__msg {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.012em;
  display: flex;
  align-items: center;
  gap: 11px;
}

.topbar__dot {
  width: 6px;
  height: 6px;
  border-radius: 99px;
  background: var(--mark);
  flex: none;
}

.topbar__cta {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--on-ink);
  background: transparent;
  border: 1px solid rgba(246, 246, 242, 0.42);
  padding: 8px 15px;
  border-radius: var(--r-sm);
  white-space: nowrap;
  transition: border-color 160ms var(--ease), background 160ms var(--ease);
}
.topbar__cta:hover { border-color: var(--on-ink); background: rgba(246, 246, 242, 0.08); }

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

.hero { padding-block: clamp(26px, 3.2vw, 48px) clamp(44px, 6vw, 88px); position: relative; }

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(32px, 4vw, 78px);
  align-items: center;
}

.hero__kicker-rule {
  width: 52px;
  height: 1px;
  background: var(--ink);
  margin-bottom: 26px;
}

.hero h1 { margin-bottom: 26px; }

.q {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 16px;
  padding: 13px 0;
  border-top: 1px solid var(--rule);
}
.q:last-of-type { border-bottom: 1px solid var(--rule); }

.q__n {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-mute);
  padding-top: 7px;
  font-variant-numeric: tabular-nums;
}

.q__t { font-size: clamp(16px, 1.25vw, 19px); line-height: 1.48; }

.hero__after {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 62ch;
}

.hero__act {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 22px;
}

.hero__price {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
}
.hero__price b { color: var(--ink); font-weight: 500; }

/* ---------- graph ---------- */

.graph {
  position: relative;
  aspect-ratio: 1 / 1;
  width: 100%;
  max-width: 560px;
  margin-inline: auto;
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  background: rgba(252, 252, 250, 0.72);
  overflow: hidden;
}

.graph__svg { width: 100%; height: 100%; display: block; }

.graph__cap {
  position: absolute;
  left: 14px;
  bottom: 12px;
  right: 14px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mute);
  pointer-events: none;
}

.g-edge {
  stroke: var(--ink);
  stroke-opacity: 0.28;
  stroke-width: 1.15;
  fill: none;
  stroke-dasharray: var(--len);
  stroke-dashoffset: var(--len);
}

.g-node circle { fill: var(--paper); stroke: var(--ink); stroke-width: 1.5; }
.g-node--hub circle { fill: var(--ink); stroke: var(--ink); }
.g-node--mark circle { fill: var(--mark); stroke: var(--ink); }

.g-node text {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  fill: var(--ink-soft);
  text-anchor: middle;
}
.g-node--hub text { fill: var(--ink); font-weight: 500; }

.g-node, .g-edge { opacity: 0; }

.graph.is-live .g-edge {
  animation: draw 900ms var(--ease) forwards;
  animation-delay: calc(var(--i) * 70ms + 240ms);
}
.graph.is-live .g-node {
  animation: pop 520ms var(--ease) forwards;
  animation-delay: calc(var(--i) * 60ms);
}

@keyframes draw {
  from { opacity: 0; stroke-dashoffset: var(--len); }
  to   { opacity: 1; stroke-dashoffset: 0; }
}

@keyframes pop {
  from { opacity: 0; transform: scale(0.72); }
  to   { opacity: 1; transform: scale(1); }
}

.g-node { transform-box: fill-box; transform-origin: center; }

/* ---------- section heading ---------- */

.head { margin-bottom: clamp(28px, 3.4vw, 48px); }
.head--mid { text-align: center; margin-inline: auto; max-width: 760px; }
.head--wide { max-width: 880px; }

.head__rule {
  width: 52px;
  height: 1px;
  background: var(--ink);
  margin-bottom: 22px;
}
.head--mid .head__rule { margin-inline: auto; }
.on-ink .head__rule { background: var(--mark); }

/* ---------- note card ---------- */

.note {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-note);
  overflow: hidden;
}

.note__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border-bottom: 1px solid var(--rule);
  background: var(--paper-sunk);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--ink-mute);
}

.note__bar .ico { flex: none; color: var(--ink-icon); }

.note__tag {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  border: 1px solid var(--rule);
  border-radius: var(--r-xs);
  padding: 2px 6px;
  flex: none;
}

.note__fm {
  padding: 12px 15px;
  border-bottom: 1px dashed var(--rule);
  background: rgba(10, 13, 37, 0.018);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.8;
  color: var(--ink-soft);
}
.note__fm b { color: var(--ink); font-weight: 500; }
.note__fm .k { color: var(--ink-mute); }

.note__body { padding: 17px 19px 19px; }

/* ---------- bio ---------- */

.bio__grid {
  display: grid;
  grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.bio__port {
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--rule);
  box-shadow: var(--shadow-note);
  background: var(--paper-sunk);
}
.bio__port img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }

.bio__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  padding: 10px 13px;
  background: rgba(10, 13, 37, 0.88);
  color: var(--on-ink);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.media {
  margin-top: clamp(34px, 4vw, 54px);
  padding-top: 26px;
  border-top: 1px solid var(--rule);
}

.media__t {
  font-family: var(--sans);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 20px;
}

.media__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(20px, 3.4vw, 46px);
}

.media__row img {
  height: 25px;
  width: auto;
  opacity: 0.5;
  filter: grayscale(1) contrast(1.35);
  transition: opacity 200ms var(--ease);
}
.media__row img:hover { opacity: 0.88; }

/* ---------- quotes ---------- */

.pull {
  display: grid;
  gap: 14px;
  padding: 22px 0;
  border-top: 1px solid var(--rule);
}
.pull:last-child { border-bottom: 1px solid var(--rule); }

.pull__q {
  font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.38;
  letter-spacing: -0.012em;
  font-weight: 300;
}

/* ---------- 4C ---------- */

.code-rail {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  overflow: hidden;
  margin-bottom: clamp(36px, 4vw, 60px);
  position: sticky;
  top: 0;
  z-index: 20;
  box-shadow: 0 10px 18px -16px rgba(10, 13, 37, 0.5);
}

.code-rail__c {
  background: var(--paper);
  padding: 20px 18px 18px;
  display: grid;
  gap: 7px;
  align-content: start;
  position: relative;
  transition: background 220ms var(--ease);
}
.code-rail__c::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--mark);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 320ms var(--ease);
}

.code-rail__c.is-on::after { transform: scaleX(1); }
.code-rail__c.is-on .code-rail__l,
.code-rail__c.is-on .code-rail__w { color: var(--ink); }
.code-rail__c.is-on .code-rail__d { color: var(--ink-soft); }

.code-rail__n {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-mute);
}

.code-rail__l {
  color: var(--ink-mute);
  transition: color 260ms var(--ease);
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 0.92;
  font-weight: 300;
  letter-spacing: -0.03em;
}

.code-rail__w {
  color: var(--ink-mute);
  transition: color 260ms var(--ease);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.code-rail__d {
  font-size: 13.5px;
  line-height: 1.45;
  color: var(--ink-mute);
}

.step {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  gap: clamp(28px, 4.5vw, 64px);
  align-items: center;
  padding-block: clamp(32px, 4.4vw, 62px);
  border-top: 1px solid var(--rule);
}
.step:nth-child(even) .step__fig { order: -1; }

.step__h { display: flex; align-items: baseline; gap: 14px; margin-bottom: 18px; }

.step__l {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--ink-mute);
  flex: none;
  padding-top: 2px;
}

.step__fig { min-width: 0; }

/* vault tree */

.tree {
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 2.05;
  color: var(--ink-soft);
}
.tree b { color: var(--ink); font-weight: 500; }
.tree .dim { color: var(--ink-mute); }
.tree li { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tree .in1 { padding-left: 20px; }
.tree .in2 { padding-left: 40px; }
.tree .ico { display: inline-block; vertical-align: -3px; margin-right: 7px; color: var(--ink-icon); }

/* backlinks panel */

.backs { display: grid; gap: 9px; }

.backs__t {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mute);
  display: flex;
  align-items: center;
  gap: 8px;
}

.backs__i {
  border: 1px solid var(--rule);
  border-radius: var(--r-sm);
  padding: 11px 13px;
  background: var(--paper);
  display: grid;
  gap: 4px;
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}
.backs__i:hover { border-color: var(--rule-strong); background: var(--mark-ghost); }

.backs__n { font-family: var(--mono); font-size: 11.5px; font-weight: 500; }
.backs__x { font-size: 13px; line-height: 1.42; color: var(--ink-mute); }

/* ---------- logos on ink ---------- */

.orgs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(22px, 3.6vw, 52px);
}

.orgs img {
  height: 27px;
  width: auto;
  opacity: 0.66;
  filter: grayscale(1) brightness(0) invert(1);
  transition: opacity 200ms var(--ease);
}
.orgs img:hover { opacity: 1; }

/* ---------- testimonial notes ---------- */

.tgrid {
  columns: 3;
  column-gap: 20px;
}

.tgrid > * { break-inside: avoid; margin-bottom: 20px; }

.tn__who { display: flex; align-items: center; gap: 11px; margin-top: 15px; }

.tn__who img {
  width: 38px;
  height: 38px;
  border-radius: 99px;
  object-fit: cover;
  flex: none;
  border: 1px solid var(--rule);
}

.tn__nm { font-family: var(--sans); font-size: 14px; font-weight: 600; line-height: 1.34; }
.tn__rl { font-size: 13px; color: var(--ink-mute); line-height: 1.34; }

.tn__q { font-size: 15.5px; line-height: 1.52; }

/* ---------- video ---------- */

.vid {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--ink);
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--rule);
}
.vid iframe { width: 100%; height: 100%; border: 0; }

.vgrid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.vcard__nm { font-family: var(--sans); font-size: 14px; font-weight: 600; margin-top: 11px; }
.vcard__rl { font-size: 12.5px; color: var(--ink-mute); }

/* ---------- included / bonus ---------- */

.inc { display: grid; gap: 1px; background: var(--rule); border-block: 1px solid var(--rule); }

.inc__i {
  background: var(--paper);
  display: grid;
  grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  gap: clamp(20px, 3vw, 42px);
  align-items: center;
  padding-block: clamp(22px, 2.6vw, 34px);
}

.inc__im {
  border-radius: var(--r-sm);
  overflow: hidden;
  border: 1px solid var(--rule);
  background: var(--paper-sunk);
}
.inc__im img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }

.inc__h { margin-bottom: 9px; }

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

.ledger__i {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 20px;
  padding: 19px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}

.ledger__n {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-mute);
  font-variant-numeric: tabular-nums;
  padding-top: 5px;
}

.ledger__h { font-family: var(--sans); font-size: 16px; font-weight: 600; letter-spacing: -0.005em; }
.ledger__d { grid-column: 2; font-size: 15px; line-height: 1.5; color: var(--ink-soft); }

/* ---------- checklist ---------- */

.checks { display: grid; gap: 13px; }

.checks li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 16px;
  line-height: 1.5;
}

.checks .ico { margin-top: 4px; color: var(--ink-mute); flex: none; }
.on-ink .checks .ico { color: var(--mark); }

/* ---------- pricing ---------- */

.buy {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
  gap: clamp(28px, 4vw, 54px);
  align-items: start;
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lift);
  padding: clamp(26px, 3.4vw, 46px);
}

.buy__feat { display: grid; gap: 14px; }

.buy__f {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule-soft);
}
.buy__f:last-child { border-bottom: 0; padding-bottom: 0; }
.buy__f .ico { margin-top: 3px; color: var(--ink-mute); flex: none; }
.buy__f b { font-family: var(--sans); font-size: 14.5px; font-weight: 600; display: block; margin-bottom: 2px; }
.buy__f span { font-size: 14.5px; line-height: 1.45; color: var(--ink-soft); }

.buy__box {
  background: var(--ink);
  color: var(--on-ink);
  border-radius: var(--r-sm);
  padding: clamp(22px, 2.6vw, 30px);
  position: sticky;
  top: 74px;
}

.buy__amt {
  font-family: var(--serif);
  font-size: clamp(38px, 5vw, 54px);
  line-height: 1;
  font-weight: 300;
  letter-spacing: -0.03em;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.buy__amt small { font-size: 16px; color: var(--on-ink-soft); font-weight: 400; letter-spacing: 0; }

.buy__sub { margin-top: 10px; font-size: 14.5px; line-height: 1.45; color: var(--on-ink-soft); }

.buy__cta { margin-top: 22px; }

.buy__fine {
  margin-top: 16px;
  padding-top: 15px;
  border-top: 1px solid var(--rule-on-ink);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--on-ink-soft);
}

.seal {
  margin-top: clamp(22px, 2.6vw, 32px);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  border: 1px solid var(--rule);
  border-radius: var(--r-sm);
  background: var(--paper);
}
.seal .ico { color: var(--ink-mute); }
.seal__h { font-family: var(--sans); font-size: 14.5px; font-weight: 600; }
.seal__d { font-size: 14px; color: var(--ink-soft); line-height: 1.45; margin-top: 2px; }

/* ---------- promise ---------- */

.prom { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rule-on-ink); }

.prom__i {
  background: var(--ink);
  padding: clamp(22px, 2.6vw, 32px) clamp(18px, 2.2vw, 28px);
  display: grid;
  gap: 12px;
  align-content: start;
}
.prom__i .ico { color: var(--mark); }
.prom__h { font-family: var(--sans); font-size: 17px; font-weight: 600; line-height: 1.32; letter-spacing: -0.008em; }
.prom__d { font-size: 15px; line-height: 1.52; color: var(--on-ink-soft); }

/* ---------- accordion (callout) ---------- */

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

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

.acc__b {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  text-align: left;
  padding: 20px 0;
  font-family: var(--sans);
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  font-weight: 600;
  letter-spacing: -0.008em;
  transition: color 160ms var(--ease);
}
.acc__b:hover { color: var(--ink-soft); }

.acc__sig {
  width: 26px;
  height: 26px;
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-xs);
  display: grid;
  place-items: center;
  flex: none;
  transition: background 200ms var(--ease), border-color 200ms var(--ease), transform 300ms var(--ease);
  color: var(--ink-mute);
}
.acc__i.is-open .acc__sig { background: var(--ink); border-color: var(--ink); color: var(--on-ink); transform: rotate(180deg); }

.acc__p { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 340ms var(--ease); }
.acc__i.is-open .acc__p { grid-template-rows: 1fr; }
.acc__c { overflow: hidden; }
.acc__in { padding-bottom: 24px; max-width: 72ch; }

.acc__in .checks { margin-top: 14px; }
.acc__in .checks li { font-size: 15.5px; }

/* ---------- audience ---------- */

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

.aud__i {
  display: grid;
  grid-template-columns: minmax(0, 280px) minmax(0, 1fr);
  gap: clamp(14px, 2.6vw, 40px);
  padding: clamp(20px, 2.4vw, 28px) 0;
  border-bottom: 1px solid var(--rule);
  align-items: start;
}

.aud__h { font-family: var(--sans); font-size: clamp(16px, 1.7vw, 19px); font-weight: 600; letter-spacing: -0.012em; }
.aud__d { font-size: 15.5px; line-height: 1.55; color: var(--ink-soft); }

/* ---------- gap notice ---------- */

.gap {
  border: 1px dashed var(--rule-strong);
  border-radius: var(--r-sm);
  padding: clamp(20px, 2.6vw, 30px);
  background: rgba(10, 13, 37, 0.022);
  display: grid;
  gap: 8px;
  text-align: center;
}
.gap__t {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.gap__d { font-size: 15px; color: var(--ink-mute); line-height: 1.5; }

/* ---------- close ---------- */

.close__q {
  font-size: clamp(24px, 3.3vw, 40px);
  line-height: 1.22;
  letter-spacing: -0.022em;
  font-weight: 300;
  max-width: 24ch;
}

.sign {
  margin-top: 30px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.sign img { width: 52px; height: 52px; border-radius: 99px; object-fit: cover; border: 1px solid var(--rule-on-ink); }
.sign__n { font-family: var(--sans); font-size: 15px; font-weight: 600; }
.sign__r { font-size: 13px; color: var(--on-ink-soft); }

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

.foot {
  border-top: 1px solid var(--rule);
  padding-block: 34px 44px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--ink-mute);
}

.foot__in { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px 26px; }
.foot a { text-decoration: none; }
.foot a:hover { color: var(--ink); }

/* ---------- reveal ---------- */

.rv { opacity: 0; transform: translateY(14px); }
.rv.is-in { opacity: 1; transform: none; transition: opacity 700ms var(--ease), transform 700ms var(--ease); }

/* ---------- responsive ---------- */

@media (max-width: 1080px) {
  .tgrid { columns: 2; }
  .vgrid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  body { font-size: 17px; }

  .hero__grid { grid-template-columns: 1fr; gap: 36px; }
  .hero__fig { max-width: 460px; margin-inline: auto; }

  .bio__grid { grid-template-columns: 1fr; }
  .bio__port { max-width: 280px; }

  .step, .step:nth-child(even) .step__fig { grid-template-columns: 1fr; }
  .step__fig { order: 0; }

  .buy { grid-template-columns: 1fr; }
  .buy__box { position: static; }

  .prom { grid-template-columns: 1fr; }

  .inc__i { grid-template-columns: 1fr; gap: 18px; }
  .inc__im { max-width: 320px; }

  .aud__i { grid-template-columns: 1fr; gap: 8px; }
}

@media (max-width: 640px) {
  body { background-size: 22px 22px; }

  .topbar__in { flex-wrap: wrap; row-gap: 10px; }
  .topbar__msg { font-size: 12px; }

  .code-rail { grid-template-columns: repeat(2, 1fr); position: static; box-shadow: none; }

  .tgrid { columns: 1; }
  .vgrid { grid-template-columns: 1fr; }

  .ledger__i { grid-template-columns: 1fr; gap: 5px; }
  .ledger__n { padding-top: 0; }
  .ledger__d { grid-column: 1; }

  .hero__act { gap: 14px; }
  .btn { width: 100%; justify-content: center; }
  .hero__price { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }
  .rv { opacity: 1; transform: none; }
  .g-node, .g-edge { opacity: 1; stroke-dashoffset: 0; }
}

/* ---------- caixa de entrada (Consumir) ---------- */

.inbox { display: grid; gap: 2px; }

.in {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule-soft);
}
.in:last-child { border-bottom: 0; }

.in__k {
  font-family: var(--mono);
  font-size: 11px;
  justify-self: start;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 3px 0 0;
  color: var(--ink-mute);
}

.in__t { font-size: 14.5px; line-height: 1.45; }

.in--yes .in__k { color: var(--ink); background: var(--mark); padding: 3px 5px; border-radius: var(--r-xs); }
.in--no .in__t { color: var(--ink-mute); text-decoration: line-through; text-decoration-color: var(--rule-strong); }

/* ---------- vídeo ---------- */

.vid__thumb {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.62;
  transition: opacity 240ms var(--ease), transform 600ms var(--ease);
}

.vid__play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--on-ink);
}

.vid__play::before {
  content: "";
  width: 58px;
  height: 58px;
  border-radius: 99px;
  border: 1px solid rgba(246, 246, 242, 0.62);
  background: rgba(10, 13, 37, 0.62);
  position: absolute;
  transition: background 220ms var(--ease), border-color 220ms var(--ease), transform 300ms var(--ease);
}

.vid__play .ico { position: relative; transform: translateX(2px); }

.vid:hover .vid__thumb { opacity: 0.78; transform: scale(1.02); }
.vid__play:hover::before { background: var(--mark); border-color: var(--mark); transform: scale(1.06); }
.vid__play:hover .ico { color: var(--ink); }

.vid__sr {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- ajustes finos ---------- */

.qs + .hero__after { }

figcaption.meta { display: block; }

.inc__i > div > .body { max-width: 62ch; }

.aud__i:last-child { border-bottom: 0; }
.ledger__i:last-child { border-bottom: 0; }

.tn__who span { min-width: 0; }

/* ---------- pares de coluna ---------- */

.duo {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.duo--even { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.duo--buy  { grid-template-columns: minmax(0, 1fr) minmax(0, 400px); align-items: center; }
.duo--fig  { grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr); }

@media (max-width: 900px) {
  .duo,
  .duo--even,
  .duo--buy,
  .duo--fig { grid-template-columns: minmax(0, 1fr); }
}

.tgrid--duo { columns: 2; max-width: 900px; margin-inline: auto; }
@media (max-width: 640px) { .tgrid--duo { columns: 1; } }


/* ============ sistema de larguras do modelo ============
   Medido do original a 1440px: container 1250, e dentro dele
   uma escada fixa de colunas. Tudo centralizado. */

.w-title { max-width: 930px; margin-inline: auto; }
.w-read  { max-width: 810px; margin-inline: auto; }
.w-readn { max-width: 746px; margin-inline: auto; }
.w-fold  { max-width: 744px; margin-inline: auto; }
.w-card  { max-width: 624px; margin-inline: auto; }
.w-price { max-width: 549px; margin-inline: auto; }
.w-wide  { max-width: 1025px; margin-inline: auto; }

.mid { text-align: center; }
.mid .head__rule { margin-inline: auto; }

/* faixas: a alternância de fundo do modelo */
.band { padding-block: clamp(48px, 6vw, 96px); position: relative; }
.band--tight { padding-block: clamp(34px, 4vw, 62px); }
.band--sunk  { background: var(--paper-sunk); border-block: 1px solid var(--rule); }
.band--ink   { background: var(--ink); color: var(--on-ink);
  background-image: radial-gradient(circle at 1px 1px, rgba(246,246,242,0.10) 1.15px, transparent 0);
  background-size: 26px 26px; }

/* meia-coluna 609 + 609 (bio, palavra final, garantia) */
.split {
  display: grid;
  grid-template-columns: minmax(0, 609fr) minmax(0, 609fr);
  gap: clamp(28px, 2.6vw, 32px);
  align-items: center;
}
.split--top { align-items: start; }

/* três colunas 399 / 379 / 369 */
.cols3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(22px, 2.4vw, 32px);
}

/* quatro colunas 327 */
.cols4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(18px, 1.9vw, 26px);
}

/* cartão da dobra: as 3 perguntas sobre navy */
.foldcard {
  background: var(--ink);
  color: var(--on-ink);
  border-radius: var(--r-md);
  padding: clamp(28px, 3.2vw, 44px) clamp(24px, 3vw, 40px);
  box-shadow: var(--shadow-lift);
}

.foldcard .q { border-top-color: var(--rule-on-ink); }
.foldcard .q:last-of-type { border-bottom-color: var(--rule-on-ink); }
.foldcard .q__n { color: var(--on-ink-mute); }

/* card de preço centralizado */
.pricecard {
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lift);
  padding: clamp(26px, 3vw, 40px);
}
.band--ink .pricecard {
  background: rgba(246, 246, 242, 0.06);
  border-color: var(--rule-on-ink);
  color: var(--on-ink);
}

.pricecard__amt {
  font-family: var(--serif);
  font-size: clamp(38px, 4.4vw, 52px);
  line-height: 1;
  font-weight: 300;
  letter-spacing: -0.03em;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
}
.pricecard__amt small { font-size: 16px; color: var(--ink-mute); font-weight: 400; letter-spacing: 0; }
.band--ink .pricecard__amt small { color: var(--on-ink-mute); }

@media (max-width: 900px) {
  .split, .cols3, .cols4 { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .cols4 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- grade de logos de mídia (célula 271, logo 187x52) ---------- */

.logogrid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(18px, 2vw, 30px) 0;
  align-items: center;
  justify-items: center;
}

.logogrid span { display: grid; place-items: center; width: 100%; }

.logogrid img {
  max-width: 187px;
  max-height: 52px;
  width: auto;
  height: auto;
  opacity: 0.55;
  filter: grayscale(1) contrast(1.3);
  transition: opacity 200ms var(--ease);
}
.logogrid img:hover { opacity: 0.9; }

/* logos de empresa em fundo claro */
.orgs--light img { filter: grayscale(1) contrast(1.25); opacity: 0.55; height: 34px; }
.orgs--light img:hover { opacity: 0.9; }

/* ---------- promessa em fundo claro ---------- */

.prom__i--light {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--r-sm);
  padding: clamp(22px, 2.4vw, 30px);
  display: grid;
  gap: 12px;
  align-content: start;
}
.prom__i--light .ico { color: var(--ink-mute); }
.prom__i--light .prom__h { color: var(--ink); }
.prom__i--light .prom__d { color: var(--ink-soft); }

/* ---------- cartão de público (3 colunas de 369) ---------- */

.aud__c {
  border-top: 1px solid var(--rule-strong);
  padding-top: 18px;
}
.aud__c .aud__h { font-family: var(--sans); font-size: 17px; font-weight: 600; letter-spacing: -0.012em; line-height: 1.32; }
.aud__c .aud__d { margin-top: 9px; font-size: 15.5px; line-height: 1.55; color: var(--ink-soft); }

/* ---------- etapa 4C empilhada (coluna única do modelo) ---------- */

.step--stack {
  display: block;
  padding-block: clamp(30px, 3.6vw, 52px);
}
.step--stack .step__fig { margin: clamp(22px, 2.6vw, 34px) 0 0; }
.step--stack .step__fig,
.step--stack:nth-child(even) .step__fig { order: 0; }

/* faixa que continua a anterior sem costura */
.band--joined { border-top: 0; padding-top: 0; }

@media (max-width: 900px) {
  .logogrid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .logogrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* faixas de respiro do modelo: logos (419 / 556) e garantia (382) */
.band--logos { padding-block: clamp(54px, 6vw, 90px); }
.band--seal  { padding-block: clamp(66px, 8vw, 118px); }

.logogrid { gap: clamp(28px, 3.6vw, 52px) 0; }
.orgs--light img { height: 44px; }

/* ============ componentes sobre fundo ink ============
   O grafo e o trilho 4C vivem na faixa escura do modelo. */

.on-ink .graph {
  background: rgba(246, 246, 242, 0.04);
  border-color: var(--rule-on-ink);
}
.on-ink .graph__cap { color: var(--on-ink-mute); }
.on-ink .g-edge { stroke: var(--on-ink); stroke-opacity: 0.30; }
.on-ink .g-node circle { fill: var(--ink); stroke: var(--on-ink); }
.on-ink .g-node--hub circle { fill: var(--on-ink); stroke: var(--on-ink); }
.on-ink .g-node--mark circle { fill: var(--mark); stroke: var(--mark); }
.on-ink .g-node text { fill: var(--on-ink-soft); }
.on-ink .g-node--hub text { fill: var(--on-ink); }

.on-ink .code-rail { background: var(--rule-on-ink); border-color: var(--rule-on-ink); }
.on-ink .code-rail__c { background: var(--ink); }
.on-ink .code-rail__n { color: var(--on-ink-mute); }
.on-ink .code-rail__l { color: var(--on-ink-mute); }
.on-ink .code-rail__w { color: var(--on-ink-soft); }
.on-ink .code-rail__d { color: var(--on-ink-mute); }
.on-ink .code-rail__c.is-on .code-rail__l,
.on-ink .code-rail__c.is-on .code-rail__w { color: var(--on-ink); }
.on-ink .code-rail__c.is-on .code-rail__d { color: var(--on-ink-soft); }

/* legenda de figura na faixa escura */
.on-ink .cap { color: var(--on-ink-mute); }

/* o cartão-nota é um objeto de papel: volta ao contexto claro dentro do escuro */
.on-ink .note { color: var(--ink); }
.on-ink .note .cap,
.on-ink .note .meta { color: var(--ink-mute); }
.on-ink .note .mk {
  background-image: linear-gradient(
    to bottom, transparent 14%, var(--mark-soft) 14%, var(--mark-soft) 92%, transparent 92%);
  color: inherit;
}
.on-ink .note .wl { color: var(--ink); border-bottom-color: var(--rule-strong); }
.on-ink .note .wl::before,
.on-ink .note .wl::after { color: var(--ink-mute); }
.on-ink .note .lnk { text-decoration-color: var(--rule-strong); }
.on-ink .note :focus-visible { outline-color: var(--ink); }

.fineprint {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--ink-mute);
}
.on-ink .fineprint { color: var(--on-ink-mute); }

/* o cartão da dobra é fundo escuro: o grifo segue a regra do escuro */
.foldcard .mk {
  background-image: linear-gradient(
    to bottom, transparent 14%, rgba(255, 214, 10, 0.26) 14%, rgba(255, 214, 10, 0.26) 92%, transparent 92%);
  color: #fff;
}