/* =========================================================================
   VERUS — base.css
   Tokens · reset · typography · layout primitives · global components
   (Header, Footer, Button, Container, ImagePlaceholder, Form, Accordion)
   Page-specific composition lives in pages.css
   ========================================================================= */

/* -------------------------------------------------------------------------
   1. TOKENS
   ------------------------------------------------------------------------- */
:root {
  /* Brand — the only three base colours (per identity spec) */
  --verus-green:      #218C60;
  --verus-offwhite:   #E6E6E6;
  --verus-dark:       #131615;

  /* Permitted derivations: opacity / slightly lighter / slightly darker */
  --green-bright:     #2BA872;  /* hover + accents on dark ground */
  --green-deep:       #1A6E4B;  /* link text on light ground — meets AA */
  --dark-2:           #1A1E1C;  /* raised panels on dark */
  --dark-3:           #232826;  /* image placeholder on dark */
  --dark-alt:         #18211D;  /* mid-page dark bands — distinct from the footer */
  --paper-2:          #DBDDDA;  /* image placeholder on light */
  --paper-3:          #D0D2CF;  /* inset panels on light */

  --line-dark:        rgba(230, 230, 230, 0.16);
  --line-dark-soft:   rgba(230, 230, 230, 0.09);
  --line-light:       rgba(19, 22, 21, 0.16);
  --line-light-soft:  rgba(19, 22, 21, 0.08);
  --ink-dim:          rgba(19, 22, 21, 0.64);
  --paper-dim:        rgba(230, 230, 230, 0.66);

  /* Layout */
  --maxw:    1400px;
  --gutter:  clamp(1.25rem, 4vw, 2.75rem);
  --col-gap: clamp(1rem, 2.2vw, 2rem);
  --header-h: clamp(60px, 8vw, 92px);
  --section-y: clamp(4.5rem, 9vw, 9rem);

  /* Fluid type scale — deliberately restrained */
  --step--1: clamp(0.78rem, 0.75rem + 0.15vw, 0.86rem);
  --step-0:  clamp(1rem, 0.97rem + 0.15vw, 1.08rem);
  --step-1:  clamp(1.1rem, 1.05rem + 0.25vw, 1.25rem);
  --step-2:  clamp(1.25rem, 1.14rem + 0.55vw, 1.6rem);
  --step-3:  clamp(1.5rem, 1.32rem + 0.9vw, 2.1rem);
  --step-4:  clamp(1.85rem, 1.55rem + 1.4vw, 2.7rem);
  --step-5:  clamp(2.15rem, 1.8rem + 1.8vw, 3.35rem);

  --ff: "Syne", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

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

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1.5rem);
  overflow-x: clip;
}

body {
  font-family: var(--ff);
  font-size: var(--step-0);
  font-weight: 400;
  line-height: 1.7;
  color: var(--verus-dark);
  background: var(--verus-offwhite);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

:focus-visible {
  outline: 2px solid var(--verus-green);
  outline-offset: 3px;
}
[data-page] .on-dark :focus-visible,
.site-header :focus-visible,
.menu-panel :focus-visible { outline-color: var(--green-bright); }

::selection { background: var(--verus-green); color: var(--verus-offwhite); }

/* -------------------------------------------------------------------------
   3. LAYOUT PRIMITIVES
   ------------------------------------------------------------------------- */
.container {
  width: min(100% - (var(--gutter) * 2), var(--maxw));
  margin-inline: auto;
}
.container--wide { width: min(100% - (var(--gutter) * 2), 1600px); }

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--col-gap);
  row-gap: clamp(2rem, 5vw, 4rem);
}

.section { padding-block: var(--section-y); }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }
.section--flush-top { padding-top: 0; }
.section--flush-bottom { padding-bottom: 0; }

.section--dark {
  background: var(--dark-alt);
  color: var(--verus-offwhite);
}
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--verus-offwhite); }

.measure   { max-width: 62ch; }
.measure-s { max-width: 46ch; }
.measure-l { max-width: 74ch; }

.rule {
  border: 0;
  border-top: 1px solid var(--line-light);
  height: 0;
}
.section--dark .rule, .on-dark .rule { border-top-color: var(--line-dark); }

/* -------------------------------------------------------------------------
   4. TYPOGRAPHY HELPERS
   ------------------------------------------------------------------------- */
.eyebrow {
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green-deep);
  display: flex;
  align-items: center;
  gap: 0.9rem;
}
.section--dark .eyebrow, .on-dark .eyebrow { color: var(--green-bright); }
.eyebrow::before {
  content: "";
  width: clamp(1.5rem, 4vw, 3rem);
  height: 1px;
  background: currentColor;
  flex: none;
}
.eyebrow--plain::before { display: none; }

.display {
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.04;
  text-transform: uppercase;
}
.display-1 { font-size: var(--step-5); }
.display-2 { font-size: var(--step-4); }
.display-3 { font-size: var(--step-3); }

.lede {
  font-size: var(--step-1);
  font-weight: 400;
  line-height: 1.6;
  color: var(--ink-dim);
}
.section--dark .lede, .on-dark .lede { color: var(--paper-dim); }

.label {
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.numeral {
  font-weight: 700;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

.accent { color: var(--verus-green); }
.section--dark .accent, .on-dark .accent { color: var(--green-bright); }

/* -------------------------------------------------------------------------
   5. LINKS & BUTTONS
   ------------------------------------------------------------------------- */
.link {
  font-weight: 600;
  color: var(--green-deep);
  transition: color 0.2s var(--ease);
}
.link:hover { color: var(--verus-green); }
.section--dark .link, .on-dark .link { color: var(--green-bright); }
.section--dark .link:hover, .on-dark .link:hover { color: var(--verus-offwhite); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 1.6rem;
  font-weight: 600;
  font-size: var(--step--1);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--verus-green);
  color: var(--verus-offwhite);
  border: 1px solid var(--verus-green);
  transition: background-color 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.btn:hover { background: var(--green-bright); border-color: var(--green-bright); }

/* Outline button: transparent, 1px border — the fill changes on hover. */
.btn--ghost {
  background: transparent;
  color: currentColor;
  border-color: currentColor;
}
.btn--ghost:hover {
  background: var(--verus-green);
  border-color: var(--verus-green);
  color: var(--verus-offwhite);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.4rem;
  align-items: center;
}

/* -------------------------------------------------------------------------
   6. IMAGE PLACEHOLDER  —  only the word IMAGEM, tonal block, nothing else
   ------------------------------------------------------------------------- */
.ph {
  --ph-bg: var(--paper-2);
  background: var(--ph-bg);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.ph::after {
  content: "Imagem";
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.section--dark .ph, .on-dark .ph { --ph-bg: var(--dark-3); }
.section--dark .ph::after, .on-dark .ph::after { color: var(--paper-dim); }

.ph--pano   { aspect-ratio: 21 / 7; }
.ph--wide   { aspect-ratio: 16 / 9; }
.ph--photo  { aspect-ratio: 4 / 3; }
.ph--square { aspect-ratio: 1 / 1; }
.ph--tall   { aspect-ratio: 4 / 5; }
.ph--column { aspect-ratio: 3 / 5; }
.ph--fill   { height: 100%; min-height: 220px; }

/* -------------------------------------------------------------------------
   7. HEADER
   ------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  --hdr-fg: var(--verus-offwhite);
  color: var(--hdr-fg);
  transition: background-color 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
body[data-hero="light"] .site-header { --hdr-fg: var(--verus-dark); }

.site-header.is-scrolled {
  background: var(--verus-dark);
  border-bottom-color: var(--line-dark);
  --hdr-fg: var(--verus-offwhite);
}
/* Must beat `body[data-hero="light"] .site-header` so nav text turns light
   again once the dark bar appears. */
body[data-hero="light"] .site-header.is-scrolled { --hdr-fg: var(--verus-offwhite); }

.header-inner {
  width: min(100% - (var(--gutter) * 2), 1600px);
  margin-inline: auto;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand { display: flex; align-items: center; flex: none; line-height: 0; }
.brand img { height: clamp(20px, 2.4vw, 28px); width: auto; }
/* Light logo is the default (dark & scrolled headers). Dark logo only shows
   over a light hero that has not yet scrolled. */
.brand-dark { display: none; }
.brand-light { display: block; }
body[data-hero="light"] .site-header:not(.is-scrolled) .brand-dark  { display: block; }
body[data-hero="light"] .site-header:not(.is-scrolled) .brand-light { display: none; }

.primary-nav ul {
  list-style: none;
  padding: 0;
  display: flex;
  gap: clamp(1rem, 2.2vw, 2rem);
}
.primary-nav a {
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 0.4rem 0;
  position: relative;
  white-space: nowrap;
  opacity: 0.82;
  transition: opacity 0.25s var(--ease);
}
.primary-nav a:hover { opacity: 1; }
.primary-nav a[aria-current="page"] { opacity: 1; }
.primary-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--verus-green);
}

.header-cta { display: flex; align-items: center; gap: 1.25rem; flex: none; }
.header-cta .btn {
  padding: 0.7rem 1.1rem;
  border-color: currentColor;
  background: transparent;
  color: var(--hdr-fg);
}
.header-cta .btn:hover { background: var(--verus-green); border-color: var(--verus-green); color: var(--verus-offwhite); }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  margin-right: -10px;
  position: relative;
  color: var(--hdr-fg);
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 22px;
  height: 1.5px;
  background: currentColor;
  transform: translateX(-50%);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle span { top: 50%; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after  { top: 7px; }

/* -------------------------------------------------------------------------
   8. MOBILE MENU
   ------------------------------------------------------------------------- */
.menu-panel {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--verus-dark);
  color: var(--verus-offwhite);
  padding: calc(var(--header-h) + 2rem) var(--gutter) 3rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2rem;
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.5s var(--ease);
  overflow-y: auto;
}
.menu-panel[hidden] { display: flex; }
body.nav-open .menu-panel { clip-path: inset(0 0 0 0); }

.menu-nav ul { list-style: none; padding: 0; display: flex; flex-direction: column; }
.menu-nav li { border-top: 1px solid var(--line-dark); }
.menu-nav li:last-child { border-bottom: 1px solid var(--line-dark); }
.menu-nav a {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: clamp(0.7rem, 2.4vw, 1.1rem) 0;
  font-size: clamp(1.4rem, 6vw, 2.1rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.menu-nav a .idx {
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  color: var(--green-bright);
  font-weight: 500;
}
.menu-nav a[aria-current="page"] { color: var(--green-bright); }
.menu-foot { display: flex; flex-direction: column; gap: 1rem; }
.menu-foot .btn { justify-content: center; }

body.nav-open { overflow: hidden; }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { transform: translateX(-50%) rotate(45deg); top: 0; }
body.nav-open .nav-toggle span::after  { transform: translateX(-50%) rotate(-45deg); top: 0; }

@media (max-width: 1080px) {
  .primary-nav, .header-cta { display: none; }
  .nav-toggle { display: block; }
}
@media (min-width: 1081px) {
  .menu-panel, .menu-panel[hidden] { display: none; }
}

/* -------------------------------------------------------------------------
   9. FOOTER
   ------------------------------------------------------------------------- */
.site-footer {
  background: var(--verus-dark);
  color: var(--verus-offwhite);
  padding-block: clamp(3.5rem, 7vw, 6rem) 2rem;
}
.footer-top {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--col-gap);
  row-gap: 3rem;
  align-items: start;
}
.footer-brand { grid-column: 1 / 6; display: flex; flex-direction: column; gap: 1.5rem; }
.footer-brand img { height: 30px; width: auto; }
.footer-brand p { color: var(--paper-dim); max-width: 34ch; font-size: var(--step--1); }

.footer-nav { grid-column: 7 / 13; }
.footer-nav ul { list-style: none; padding: 0; columns: 2; column-gap: var(--col-gap); }
.footer-nav li { margin-bottom: 0.9rem; break-inside: avoid; }
.footer-nav a {
  font-size: var(--step--1);
  letter-spacing: 0.06em;
  color: var(--paper-dim);
  transition: color 0.25s var(--ease);
}
.footer-nav a:hover { color: var(--verus-offwhite); }

.footer-bottom {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding-top: 1.75rem;
  border-top: 1px solid var(--line-dark);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  justify-content: space-between;
  font-size: var(--step--1);
  color: var(--paper-dim);
}
.footer-bottom nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-bottom a:hover { color: var(--verus-offwhite); }

@media (max-width: 780px) {
  .footer-brand { grid-column: 1 / 13; }
  .footer-nav { grid-column: 1 / 13; }
}

/* -------------------------------------------------------------------------
   10. HERO SHELL (shared scaffold; each page restyles in pages.css)
   ------------------------------------------------------------------------- */
.hero {
  padding-top: calc(var(--header-h) + clamp(2.5rem, 8vw, 6rem));
  padding-bottom: var(--section-y);
  position: relative;
}
.hero--dark { background: var(--verus-dark); color: var(--verus-offwhite); }
.hero--dark h1 { color: var(--verus-offwhite); }

/* -------------------------------------------------------------------------
   11. SHEET  —  section reference label (no rule / no vertical line)
   ------------------------------------------------------------------------- */
.sheet {
  position: relative;
  padding-top: 2.75rem;
}
.sheet::before {
  content: attr(data-ref);
  position: absolute;
  top: 0;
  left: 0;
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green-deep);
}
.section--dark .sheet::before, .on-dark .sheet::before { color: var(--green-bright); }

/* -------------------------------------------------------------------------
   12. EDITORIAL LIST  (replaces card grids)
   ------------------------------------------------------------------------- */
.elist { display: flex; flex-direction: column; }
.elist__row {
  display: grid;
  grid-template-columns: 2.75rem 1fr;
  gap: clamp(1rem, 3vw, 2.25rem);
  align-items: baseline;
  padding-block: clamp(1.4rem, 3vw, 2.25rem);
  border-top: 1px solid var(--line-light);
}
.elist__row:last-child { border-bottom: 1px solid var(--line-light); }
.section--dark .elist__row, .on-dark .elist__row { border-color: var(--line-dark); }
.elist__num {
  font-size: var(--step-0);
  font-weight: 700;
  color: var(--verus-green);
  font-variant-numeric: tabular-nums;
  padding-top: 0.15em;
}
.section--dark .elist__num, .on-dark .elist__num { color: var(--green-bright); }
.elist__body h3 {
  font-size: var(--step-2);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  transition: transform 0.35s var(--ease);
}
.elist__body p { margin-top: 0.6rem; color: var(--ink-dim); max-width: 54ch; }
.section--dark .elist__body p, .on-dark .elist__body p { color: var(--paper-dim); }
a.elist__row:hover .elist__body h3 { transform: translateX(0.5rem); }

@media (max-width: 560px) {
  .elist__row { grid-template-columns: 1fr; gap: 0.5rem; }
}

/* -------------------------------------------------------------------------
   13. FORM  (no boxes — ruled underline fields)
   ------------------------------------------------------------------------- */
.field { position: relative; display: flex; flex-direction: column; gap: 0.5rem; }
.field label, .fieldset-legend {
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.section--dark .field label, .on-dark .field label,
.section--dark .fieldset-legend, .on-dark .fieldset-legend { color: var(--paper-dim); }

.field input,
.field textarea {
  border: 0;
  border-bottom: 1px solid var(--line-light);
  background: transparent;
  padding: 0.65rem 0;
  font-size: var(--step-1);
  font-weight: 500;
  color: inherit;
  border-radius: 0;
  transition: border-color 0.3s var(--ease);
}
.section--dark .field input, .on-dark .field input,
.section--dark .field textarea, .on-dark .field textarea { border-bottom-color: var(--line-dark); }
.field input:focus,
.field textarea:focus { outline: none; border-bottom-color: var(--verus-green); }
.field textarea { resize: vertical; min-height: 5.5rem; }
.field input::placeholder,
.field textarea::placeholder { color: color-mix(in srgb, currentColor 40%, transparent); }

fieldset { border: 0; padding: 0; }
.chip-row { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 0.9rem; }
.chip { position: relative; }
.chip input {
  position: absolute;
  opacity: 0;
  inset: 0;
  cursor: pointer;
}
.chip span {
  display: block;
  padding: 0.6rem 1.1rem;
  border: 1px solid var(--line-light);
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease), color 0.25s var(--ease);
}
.section--dark .chip span, .on-dark .chip span { border-color: var(--line-dark); }
.chip input:hover + span { border-color: currentColor; }
.chip input:focus-visible + span { outline: 2px solid var(--verus-green); outline-offset: 2px; }
.chip input:checked + span {
  background: var(--verus-green);
  border-color: var(--verus-green);
  color: var(--verus-offwhite);
}

.file-field { display: flex; flex-direction: column; gap: 0.6rem; }
.file-field .label { color: var(--ink-dim); }
.section--dark .file-field .label, .on-dark .file-field .label { color: var(--paper-dim); }
.file-field input[type="file"] {
  font-size: var(--step--1);
  color: var(--ink-dim);
  padding: 0.2rem 0;
}
.section--dark .file-field input[type="file"], .on-dark .file-field input[type="file"] { color: var(--paper-dim); }
.file-field input[type="file"]::file-selector-button {
  font: inherit;
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.5rem 1rem;
  margin-right: 0.9rem;
  border: 1px solid var(--line-light);
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: border-color 0.2s var(--ease);
}
.section--dark .file-field input[type="file"]::file-selector-button,
.on-dark .file-field input[type="file"]::file-selector-button { border-color: var(--line-dark); }
.file-field input[type="file"]::file-selector-button:hover { border-color: currentColor; }

.form-note {
  border-left: 2px solid var(--verus-green);
  padding: 1rem 0 1rem 1.5rem;
  max-width: 48ch;
}

/* -------------------------------------------------------------------------
   14. ACCORDION  (FAQ — ruled rows, no boxes)
   ------------------------------------------------------------------------- */
.accordion { border-top: 1px solid var(--line-light); }
.accordion__item { border-bottom: 1px solid var(--line-light); }
.accordion__item > h3 { margin: 0; font: inherit; font-weight: 400; letter-spacing: 0; }
.accordion__trigger {
  width: 100%;
  display: grid;
  grid-template-columns: 3.5rem 1fr 2rem;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  align-items: start;
  text-align: left;
  padding: clamp(1.4rem, 3.2vw, 2.1rem) 0;
}
.accordion__trigger .idx {
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--green-deep);
  padding-top: 0.4em;
  font-variant-numeric: tabular-nums;
}
.accordion__trigger .q {
  font-size: var(--step-2);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.15;
  transition: color 0.25s var(--ease);
}
.accordion__trigger:hover .q { color: var(--green-deep); }
.accordion__trigger .sign {
  position: relative;
  width: 16px; height: 16px;
  margin-top: 0.55em;
  justify-self: end;
}
.accordion__trigger .sign::before,
.accordion__trigger .sign::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform 0.35s var(--ease), opacity 0.35s var(--ease);
}
.accordion__trigger .sign::before { inset: 7px 0; height: 1.5px; }
.accordion__trigger .sign::after  { inset: 0 7px; width: 1.5px; }
.accordion__trigger[aria-expanded="true"] .sign::after { transform: scaleY(0); opacity: 0; }

.accordion__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s var(--ease);
}
.accordion__panel-inner {
  padding: 0 2rem clamp(1.6rem, 3.5vw, 2.4rem) 4.25rem;
  max-width: 68ch;
  color: var(--ink-dim);
}
@media (prefers-reduced-motion: reduce) {
  .accordion__panel { transition: none; }
}
@media (max-width: 560px) {
  .accordion__trigger { grid-template-columns: 1fr 1.5rem; }
  .accordion__trigger .idx { display: none; }
  .accordion__panel-inner { padding-left: 0; padding-right: 0; }
}

/* -------------------------------------------------------------------------
   15. REVEAL ANIMATION
   ------------------------------------------------------------------------- */
/* Reveal only when JS is available — no-JS users see everything immediately. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.js [data-reveal].is-visible { opacity: 1; transform: none; }
.js [data-reveal][data-reveal-delay="1"] { transition-delay: 0.08s; }
.js [data-reveal][data-reveal-delay="2"] { transition-delay: 0.16s; }
.js [data-reveal][data-reveal-delay="3"] { transition-delay: 0.24s; }

@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;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
}

/* -------------------------------------------------------------------------
   16. UTILITIES
   ------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: 1rem; top: 1rem;
  z-index: 200;
  background: var(--verus-dark);
  color: var(--verus-offwhite);
  padding: 0.75rem 1.25rem;
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transform: translateY(-150%);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus { transform: none; }

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

.stack-s > * + * { margin-top: 1rem; }
.stack-m > * + * { margin-top: 1.75rem; }
.stack-l > * + * { margin-top: clamp(1.75rem, 4vw, 3rem); }

.text-dim { color: var(--ink-dim); }
.section--dark .text-dim, .on-dark .text-dim { color: var(--paper-dim); }