/* =============================================================================
   Decision Assurance Council — styles.css
   The entire design system: tokens (one :root) + components.

   IDENTITY NOTE (load-bearing): this is the INDEPENDENT, vendor-neutral identity
   of the Decision Assurance Council. It deliberately shares NOTHING with the
   Arclave vendor brand — no keystone/arch mark, no Arclave navy (#15233B), no
   Arclave gold (#C0913C), no Inter typeface. The accent is a deep teal (trust /
   independence); the type is a refined serif (Source Serif 4) paired with a civic
   sans (Public Sans); the emblem reads as graded assurance LEVELS, not an arch.
   Built per the BRIDGES Method (WEBSITE-DESIGN-SOP.md v2.2).
   ========================================================================== */

/* ---------------------------------------------------------------------------
   1. DESIGN TOKENS — every downstream color, font, and spacing value traces here.
   --------------------------------------------------------------------------- */
:root {
  /* Color — neutral institutional palette */
  --ink:           #1F2328;   /* neutral near-black — body text on light */
  --paper:         #FFFFFF;   /* page background */
  --surface:       #F6F7F8;   /* light section background */
  --surface-2:     #EEF0F2;   /* deeper light tint — table stripes, chips */
  --line:          #E2E4E7;   /* hairlines on light */
  --line-strong:   #CDD1D6;   /* stronger hairline / input border */
  --muted:         #5B6470;   /* secondary text on light (AA on white) */

  --accent:        #0F766E;   /* deep teal — trust / independence (NOT Arclave gold) */
  --accent-strong: #0B5B54;   /* darker teal — link text, button text on white (AA+) */
  --accent-soft:   #E6F1EF;   /* teal tint — soft fills, active chips */
  --accent-line:   #BFD9D5;   /* teal hairline */

  --ink-on-dark:   #F3F4F6;   /* primary text on dark band */
  --muted-on-dark: #AEB6BF;   /* secondary text on dark band */
  --dark:          #14181B;   /* the dark band background */
  --dark-2:        #1C2227;   /* dark card surface within a dark band */
  --line-on-dark:  #2D343A;   /* hairline on dark */

  /* Type */
  --font-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-sans:  "Public Sans", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* Fluid type scale (clamp) */
  --fs-display: clamp(2.25rem, 1.5rem + 3.4vw, 3.75rem);  /* h1 / hero */
  --fs-h2:      clamp(1.65rem, 1.2rem + 1.9vw, 2.5rem);
  --fs-h3:      clamp(1.2rem, 1.05rem + 0.6vw, 1.4rem);
  --fs-h4:      1.0625rem;
  --fs-lead:    clamp(1.075rem, 1rem + 0.35vw, 1.3rem);
  --fs-body:    1.0625rem;
  --fs-small:   0.9375rem;
  --fs-overline: 0.78rem;

  /* Rhythm */
  --container:    1120px;
  --container-narrow: 760px;
  --radius:       8px;
  --radius-sm:    5px;
  --radius-pill:  999px;
  --section-pad:  clamp(56px, 8vw, 104px);
  --gap:          clamp(20px, 3vw, 32px);

  --shadow-card:  0 1px 2px rgba(31, 35, 40, 0.04), 0 6px 22px rgba(31, 35, 40, 0.06);
  --shadow-lift:  0 2px 6px rgba(31, 35, 40, 0.08), 0 16px 40px rgba(31, 35, 40, 0.12);

  --focus:        0 0 0 3px rgba(15, 118, 110, 0.40);
}

/* ---------------------------------------------------------------------------
   2. RESET + BASE
   --------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.15;
  color: var(--ink);
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}
h1 { font-size: var(--fs-display); line-height: 1.06; }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-h4); font-weight: 700; }

p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

a { color: var(--accent-strong); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent); }

strong { font-weight: 700; color: var(--ink); }
em { font-style: italic; }

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

ul, ol { margin: 0 0 1rem; padding-left: 1.25rem; }
li { margin-bottom: 0.4rem; }
li:last-child { margin-bottom: 0; }

/* Visible focus for all interactive elements (WCAG 2.2 AA) */
:where(a, button, input, textarea, select, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ---------------------------------------------------------------------------
   3. UTILITIES
   --------------------------------------------------------------------------- */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 8px; top: -48px;
  z-index: 200;
  background: var(--accent-strong); color: #fff;
  padding: 10px 16px; border-radius: var(--radius-sm);
  text-decoration: none; font-weight: 600; font-size: var(--fs-small);
  transition: top 0.15s ease;
}
.skip-link:focus { top: 8px; color: #fff; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: clamp(20px, 5vw, 40px); }
.narrow { max-width: var(--container-narrow); margin-inline: auto; }
.measure { max-width: 60ch; }
.measure-tight { max-width: 50ch; }
.center { text-align: center; }
.mt-3 { margin-top: 0.75rem; } .mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 1.5rem; } .mt-6 { margin-top: 2.25rem; }
.muted { color: var(--muted); }

/* ---------------------------------------------------------------------------
   4. SECTION WRAPPERS
   --------------------------------------------------------------------------- */
.section { padding-block: var(--section-pad); }
.section--surface { background: var(--surface); border-block: 1px solid var(--line); }
.section--dark {
  background: var(--dark);
  color: var(--ink-on-dark);
}
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 { color: var(--ink-on-dark); }
.section--dark .muted { color: var(--muted-on-dark); }
.section--dark a { color: #7FD7CE; }
.section--dark a:hover { color: #A7E4DD; }

/* ---------------------------------------------------------------------------
   5. OVERLINE + SECTION HEADING DEVICES
   --------------------------------------------------------------------------- */
.overline {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--fs-overline);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-strong);
  margin-bottom: 0.5rem;
}
.section--dark .overline { color: #7FD7CE; }

/* The signature device: a short stack of ascending "level" ticks */
.level-rule {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  height: 18px;
  margin-bottom: 1rem;
}
.level-rule span { width: 4px; background: var(--accent); border-radius: 1px; display: block; }
.level-rule span:nth-child(1) { height: 6px; background: var(--line-strong); }
.level-rule span:nth-child(2) { height: 9px; background: var(--accent-line); }
.level-rule span:nth-child(3) { height: 12px; background: var(--accent); }
.level-rule span:nth-child(4) { height: 15px; background: var(--accent); }
.level-rule span:nth-child(5) { height: 18px; background: var(--accent-strong); }

/* ---------------------------------------------------------------------------
   6. BUTTONS
   --------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  font-family: var(--font-sans);
  font-weight: 600; font-size: var(--fs-small);
  line-height: 1.2;
  padding: 0.72em 1.3em;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}
.btn-primary { background: var(--accent); color: #FFFFFF; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-card); }
.btn-secondary { background: transparent; color: var(--accent-strong); border-color: var(--line-strong); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent-strong); background: var(--accent-soft); }
.btn-lg { font-size: var(--fs-body); padding: 0.85em 1.6em; }

.section--dark .btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.section--dark .btn-primary:hover { background: #14857B; border-color: #14857B; }
.section--dark .btn-secondary { color: var(--ink-on-dark); border-color: var(--line-on-dark); }
.section--dark .btn-secondary:hover { border-color: #7FD7CE; color: #fff; background: rgba(127, 215, 206, 0.10); }

.btn-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.75rem; }

/* ---------------------------------------------------------------------------
   7. HEADER + NAV (byte-identical across pages; vary only aria-current)
   --------------------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 68px; }

.brand-lockup { display: inline-flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--ink); }
.brand-lockup:hover { color: var(--ink); }
.brand-emblem { width: 30px; height: 30px; flex: none; display: block; }
.wordmark {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
  line-height: 1.05;
  color: var(--ink);
}
.wordmark .wordmark-sub { display: block; font-family: var(--font-sans); font-weight: 700; font-size: 0.6rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }

.nav-toggle {
  display: none;
  background: transparent; border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm); padding: 7px; color: var(--ink); cursor: pointer;
}
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }
.nav-toggle svg { width: 22px; height: 22px; display: block; }

.nav-menu { display: flex; align-items: center; gap: 1.75rem; }
.nav-links { display: flex; align-items: center; gap: 1.5rem; list-style: none; margin: 0; padding: 0; }
.nav-links li { margin: 0; }
.nav-links a {
  font-family: var(--font-sans);
  font-size: var(--fs-small); font-weight: 500;
  color: var(--ink); text-decoration: none;
  padding: 6px 2px; position: relative;
}
.nav-links a:hover { color: var(--accent-strong); }
.nav-links a[aria-current="page"] { color: var(--accent-strong); font-weight: 700; }
.nav-links a[aria-current="page"]::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px;
  background: var(--accent); border-radius: 2px;
}
.nav-cta .btn { white-space: nowrap; }

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .nav-menu {
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-card);
    padding: 0.5rem clamp(20px, 5vw, 40px) 1.25rem;
    max-height: 0; overflow: hidden;
    transition: max-height 0.25s ease;
  }
  .nav-menu.is-open { max-height: 80vh; overflow: auto; }
  .nav-links { flex-direction: column; align-items: stretch; gap: 0; width: 100%; }
  .nav-links li { border-bottom: 1px solid var(--line); }
  .nav-links a { display: block; padding: 0.85rem 0; font-size: var(--fs-body); }
  .nav-links a[aria-current="page"]::after { display: none; }
  .nav-cta { width: 100%; margin-top: 1rem; }
  .nav-cta .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) { .nav-menu { transition: none; } }

/* ---------------------------------------------------------------------------
   8. HERO
   --------------------------------------------------------------------------- */
.hero { padding-block: clamp(56px, 9vw, 116px); position: relative; }
.hero--surface { background: var(--surface); border-bottom: 1px solid var(--line); }
.hero-inner { max-width: 56ch; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: var(--font-sans); font-size: var(--fs-overline); font-weight: 700;
  letter-spacing: 0.13em; text-transform: uppercase; color: var(--accent-strong);
  background: var(--accent-soft); border: 1px solid var(--accent-line);
  padding: 0.4rem 0.8rem; border-radius: var(--radius-pill); margin-bottom: 1.25rem;
}
.hero-eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex: none; }
.hero h1 { margin-bottom: 0.75rem; }
.hero-deck {
  font-family: var(--font-serif); font-style: italic;
  font-size: var(--fs-lead); color: var(--muted); line-height: 1.4;
  margin: 0 0 1.25rem; max-width: 54ch;
}
.hero-statement { font-size: var(--fs-lead); color: var(--ink); max-width: 54ch; }

/* ---------------------------------------------------------------------------
   9. LEAD / PULLQUOTE / CALLOUT / NOTICE
   --------------------------------------------------------------------------- */
.lead { font-size: var(--fs-lead); color: var(--muted); line-height: 1.55; }
.section--dark .lead { color: var(--muted-on-dark); }

.pullquote {
  font-family: var(--font-serif); font-size: clamp(1.3rem, 1rem + 1.4vw, 1.9rem);
  line-height: 1.3; font-weight: 600; color: var(--ink); letter-spacing: -0.01em;
}
.section--dark .pullquote { color: var(--ink-on-dark); }

.callout {
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: clamp(1.1rem, 2vw, 1.6rem);
}
.callout p { color: var(--ink); }

.notice {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.1rem, 2vw, 1.6rem);
}

/* ---------------------------------------------------------------------------
   10. GRID + CARDS + FEATURES
   --------------------------------------------------------------------------- */
.grid { display: grid; gap: var(--gap); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 860px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 2.2vw, 1.75rem);
  box-shadow: var(--shadow-card);
}
.card h3, .card h4 { margin-bottom: 0.4rem; }
.section--surface .card { background: var(--paper); }
.section--dark .card { background: var(--dark-2); border-color: var(--line-on-dark); box-shadow: none; }

.card .num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem; border-radius: var(--radius-sm);
  background: var(--accent-soft); color: var(--accent-strong);
  font-family: var(--font-serif); font-weight: 700; font-size: 1.05rem;
  margin-bottom: 0.85rem;
}

.feature { display: flex; gap: 1rem; align-items: flex-start; }
.feature-mark { width: 30px; height: 30px; flex: none; margin-top: 3px; }
.feature h4 { margin-bottom: 0.25rem; }

/* Property chips (the five properties) */
.prop-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.75rem; }
@media (max-width: 860px) { .prop-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .prop-grid { grid-template-columns: 1fr; } }
.prop {
  background: var(--paper); border: 1px solid var(--line); border-top: 3px solid var(--accent);
  border-radius: var(--radius); padding: 1rem; text-align: center;
}
.prop .prop-name { font-family: var(--font-serif); font-weight: 600; font-size: 1.05rem; color: var(--ink); display: block; }
.prop .prop-sub { font-size: var(--fs-small); color: var(--muted); }

/* ---------------------------------------------------------------------------
   11. DEFINITION BLOCKS (lexicon)
   --------------------------------------------------------------------------- */
.defn {
  background: var(--paper); border: 1px solid var(--line);
  border-left: 4px solid var(--accent); border-radius: var(--radius);
  padding: clamp(1.25rem, 2.5vw, 2rem);
}
.defn .term {
  font-family: var(--font-serif); font-size: var(--fs-h3); font-weight: 600;
  color: var(--ink); margin-bottom: 0.5rem;
}
.defn blockquote {
  margin: 0 0 1rem; padding: 0;
  font-family: var(--font-serif); font-size: var(--fs-lead); line-height: 1.45; color: var(--ink);
}
.defn .defn-label {
  font-family: var(--font-sans); font-size: var(--fs-overline); font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: 0.3rem;
}

/* ---------------------------------------------------------------------------
   12. TABLE — the open-standard DAL levels table
   --------------------------------------------------------------------------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); -webkit-overflow-scrolling: touch; }
.dtable { width: 100%; border-collapse: collapse; min-width: 640px; font-size: var(--fs-small); background: var(--paper); }
.dtable caption { text-align: left; }
.dtable th, .dtable td { padding: 0.85rem 1rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.dtable thead th {
  background: var(--surface); font-family: var(--font-sans); font-weight: 700;
  font-size: var(--fs-overline); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted);
  border-bottom: 2px solid var(--line-strong);
}
.dtable tbody th { font-family: var(--font-sans); font-weight: 600; white-space: nowrap; }
.dtable tbody tr:last-child th, .dtable tbody tr:last-child td { border-bottom: 0; }
.dtable tbody tr:nth-child(even) { background: var(--surface); }

/* DAL level badges (neutral; the teal accent only on the lightest-touch end) */
.dal { display: inline-block; font-weight: 700; font-size: var(--fs-small); padding: 0.2em 0.6em; border-radius: var(--radius-sm); border: 1px solid var(--line-strong); color: var(--ink); background: var(--paper); }
.dal-a { border-color: #6B7280; background: #EEF0F2; }
.dal-b { border-color: #9AA3AC; }
.dal-c { border-color: var(--accent-line); background: #F1F8F7; }
.dal-d { border-color: var(--accent-line); background: var(--accent-soft); }
.dal-e { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-strong); }

/* ---------------------------------------------------------------------------
   13. STEPS / ORDERED PROCESS LIST
   --------------------------------------------------------------------------- */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; counter-reset: step; }
.steps li {
  position: relative; padding-left: 3.25rem; margin: 0;
  min-height: 2.25rem;
}
.steps li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 0;
  width: 2.25rem; height: 2.25rem; border-radius: var(--radius-sm);
  background: var(--accent-soft); color: var(--accent-strong);
  font-family: var(--font-serif); font-weight: 700; font-size: 1.05rem;
  display: inline-flex; align-items: center; justify-content: center;
}
.steps li strong { display: block; margin-bottom: 0.15rem; }

/* Lineage chain */
.chain { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 0.75rem; }
.chain .link { font-family: var(--font-serif); font-weight: 600; color: var(--ink); }
.chain .arrow { color: var(--accent); font-weight: 700; }
.chain .terminal { color: var(--accent-strong); }

/* ---------------------------------------------------------------------------
   14. FOOTER (byte-identical across pages)
   --------------------------------------------------------------------------- */
.site-footer { background: var(--dark); color: var(--ink-on-dark); padding-block: clamp(40px, 6vw, 64px) 1.75rem; }
.site-footer h3 {
  font-family: var(--font-sans); font-size: var(--fs-overline); font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted-on-dark);
  margin-bottom: 0.9rem;
}
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--gap); }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand .brand-lockup { color: var(--ink-on-dark); margin-bottom: 0.85rem; }
.footer-brand .wordmark { color: var(--ink-on-dark); }
.footer-brand .wordmark .wordmark-sub { color: var(--muted-on-dark); }
.footer-brand p { color: var(--muted-on-dark); font-size: var(--fs-small); max-width: 38ch; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 0.55rem; }
.footer-col a { color: var(--ink-on-dark); text-decoration: none; font-size: var(--fs-small); }
.footer-col a:hover { color: #7FD7CE; text-decoration: underline; }
.footer-base {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; justify-content: space-between;
  margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line-on-dark);
}
.footer-base p { color: var(--muted-on-dark); font-size: var(--fs-small); margin: 0; }

/* ---------------------------------------------------------------------------
   15. FORM (get-involved — non-posting, honest placeholder)
   --------------------------------------------------------------------------- */
.form-grid { display: grid; gap: 1.1rem; }
.field { display: grid; gap: 0.35rem; }
.field label { font-weight: 600; font-size: var(--fs-small); color: var(--ink); }
.field .hint { font-size: var(--fs-small); color: var(--muted); }
.field input, .field select, .field textarea {
  font-family: var(--font-sans); font-size: var(--fs-body); color: var(--ink);
  background: var(--paper); border: 1.5px solid var(--line-strong); border-radius: var(--radius-sm);
  padding: 0.7rem 0.85rem; width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); box-shadow: var(--focus); outline: none; }
.field textarea { min-height: 120px; resize: vertical; }

/* ---------------------------------------------------------------------------
   16. SCROLL-REVEAL (no-JavaScript-safe — SOP Section 12.6)
   No-JS / pre-JS default: VISIBLE. Only .js documents hide-then-reveal.
   --------------------------------------------------------------------------- */
.reveal { opacity: 1; transform: none; }
.js .reveal {
  opacity: 0; transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.js .reveal.is-visible { opacity: 1; transform: none; }
.js .reveal.delay-1 { transition-delay: 0.08s; }
.js .reveal.delay-2 { transition-delay: 0.16s; }
.js .reveal.delay-3 { transition-delay: 0.24s; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
}