/* =========================================================================
   Hewlett Tech and Text Products — hewletthill.ca
   Palette drawn from the hero image: sunset-lit hill, snowy evergreens,
   slate winter sky, snow-white. Terminal-flavoured accents to echo http://
   ========================================================================= */

:root {
  /* Core palette */
  --ember:        #e07a2f;   /* sunlit hillside */
  --ember-bright: #f4a23c;
  --ember-soft:   #f6d6b4;
  --evergreen:    #234538;   /* shadowed pines */
  --evergreen-dk: #15281f;
  --pine-near:    #0f1714;   /* terminal near-black */
  --slate:        #6b7689;   /* winter sky */
  --slate-dk:     #4a5260;
  --snow:         #f7f9fb;
  --snow-warm:    #fbf6ef;
  --ink:          #1b2620;
  --muted:        #5d6b63;
  --line:         #e2e6e1;

  /* Roles */
  --bg:           var(--snow);
  --surface:      #ffffff;
  --accent:       var(--ember);
  --accent-2:     var(--evergreen);

  --maxw: 1140px;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(20,40,30,.05), 0 8px 28px rgba(20,40,30,.08);
  --shadow-lg: 0 20px 60px rgba(15,23,20,.18);

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
               Helvetica, Arial, "Helvetica Neue", sans-serif;
  --font-mono: "SFMono-Regular", "Monaco", "Menlo", "Cascadia Code",
               "Consolas", "Liberation Mono", monospace;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia,
               "Times New Roman", serif;

  --step: clamp(1rem, 0.92rem + 0.4vw, 1.125rem);
}

/* ----------------------------------------------------------------- Reset */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: var(--step);
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--evergreen); text-decoration-color: color-mix(in srgb, var(--ember) 60%, transparent); text-underline-offset: 3px; }
a:hover { color: var(--ember); }
h1, h2, h3, h4 { line-height: 1.15; font-weight: 750; letter-spacing: -.02em; color: var(--ink); }
:focus-visible { outline: 3px solid var(--ember); outline-offset: 2px; border-radius: 4px; }

/* --------------------------------------------------------------- Layout */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(1.1rem, 4vw, 2rem); }
.section { padding-block: clamp(3.2rem, 7vw, 6rem); }
.section--tight { padding-block: clamp(2.2rem, 4vw, 3.2rem); }
.section--alt { background: var(--snow-warm); }
.section--pine { background: var(--pine-near); color: #dfe7e2; }
.section--pine h2, .section--pine h3 { color: #fff; }
.lead { font-size: clamp(1.15rem, 1.02rem + 0.7vw, 1.4rem); color: var(--muted); max-width: 60ch; }
.section--pine .lead { color: #aab8b1; }
.center { text-align: center; margin-inline: auto; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: .8rem; font-weight: 600;
  letter-spacing: .14em; text-transform: lowercase;
  color: var(--ember);
  display: inline-flex; align-items: center; gap: .5ch;
}
.eyebrow::before { content: "://"; opacity: .55; }
h2.title { font-size: clamp(1.7rem, 1.2rem + 2vw, 2.6rem); margin-block: .35rem .4rem; }
.measure { max-width: 68ch; }
.measure.center { margin-inline: auto; }

/* --------------------------------------------------------------- Logo */
.logo { display: inline-flex; align-items: center; gap: .7rem; text-decoration: none; color: inherit; }
.logo:hover { color: inherit; }
.logo__mark { width: 46px; height: 46px; flex: 0 0 auto; border-radius: 10px; }
.logo__name { display: flex; flex-direction: column; line-height: 1.05; }
.logo__name b { font-weight: 800; font-size: 1.02rem; letter-spacing: -.01em; }
.logo__name span { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .04em; color: var(--muted); }

/* --------------------------------------------------------------- Header / nav */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--snow) 86%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 68px; }
.nav__menu { display: flex; align-items: center; gap: .35rem; list-style: none; }
.nav__link {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .55rem .8rem; border-radius: 9px;
  font-weight: 600; font-size: .96rem; color: var(--ink); text-decoration: none;
  transition: background .15s ease, color .15s ease;
}
.nav__link:hover, .nav__item:focus-within > .nav__link { background: color-mix(in srgb, var(--ember) 12%, transparent); color: var(--ink); }
.nav__link[aria-current="page"] { color: var(--ember); }
.nav__link[aria-current="page"]::after { content: ""; }
.nav__item { position: relative; }
.caret { width: .62em; height: .62em; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg) translateY(-2px); opacity: .7; transition: transform .2s ease; }
.nav__item:hover .caret, .nav__item:focus-within .caret { transform: rotate(225deg) translateY(2px); }

/* Dropdown */
.nav__sub {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 260px;
  list-style: none; padding: .5rem; margin: 0;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
}
.nav__item:hover > .nav__sub, .nav__item:focus-within > .nav__sub { opacity: 1; visibility: visible; transform: translateY(0); }
.nav__sub a { display: block; padding: .6rem .7rem; border-radius: 9px; text-decoration: none; color: var(--ink); }
.nav__sub a:hover { background: var(--snow-warm); color: var(--ember); }
.nav__sub a small { display: block; font-weight: 500; font-size: .8rem; color: var(--muted); margin-top: 1px; }
.nav__sub a:hover small { color: var(--slate-dk); }
.nav__sub-head { padding: .35rem .7rem .2rem; font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--slate); }

.nav__cta { display: inline-flex; }
.nav__toggle { display: none; }

/* ------------------------------------------------------------ Buttons */
.btn {
  --b: var(--ember);
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .72rem 1.25rem; border-radius: 999px;
  font-weight: 650; font-size: .96rem; text-decoration: none; cursor: pointer;
  border: 1.5px solid transparent; transition: transform .12s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--ember); color: #fff; box-shadow: 0 6px 18px rgba(224,122,47,.35); }
.btn--primary:hover { background: var(--ember-bright); color: #fff; }
.btn--ghost { background: transparent; border-color: color-mix(in srgb, var(--evergreen) 35%, transparent); color: var(--evergreen); }
.btn--ghost:hover { border-color: var(--ember); color: var(--ember); }
.btn--light { background: rgba(255,255,255,.1); color: #fff; border-color: rgba(255,255,255,.45); backdrop-filter: blur(4px); }
.btn--light:hover { background: rgba(255,255,255,.2); color: #fff; }
.btn-row { display: flex; flex-wrap: wrap; gap: .8rem; }

.arrow-link { font-weight: 650; text-decoration: none; display: inline-flex; align-items: center; gap: .4rem; color: var(--ember); }
.arrow-link::after { content: "→"; transition: transform .15s ease; }
.arrow-link:hover::after { transform: translateX(4px); }

/* ------------------------------------------------------------ Hero */
.hero { position: relative; min-height: clamp(560px, 86vh, 820px); display: flex; align-items: center; color: #fff; isolation: isolate; }
.hero__bg {
  position: absolute; inset: 0; z-index: -2;
  background-image: url("../img/HewlettHill.png");
  background-size: cover; background-position: center 38%;
  background-attachment: fixed; background-repeat: no-repeat;
}
.hero__scrim {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(15,23,20,.55) 0%, rgba(15,23,20,.18) 32%, rgba(15,23,20,.30) 62%, rgba(15,23,20,.78) 100%),
    radial-gradient(120% 90% at 18% 30%, rgba(15,23,20,.55), transparent 60%);
}
.hero__inner { padding-block: clamp(4rem, 12vh, 8rem); max-width: 760px; }
.hero .eyebrow { color: var(--ember-bright); }
.hero .eyebrow::before { color: var(--ember-soft); }
.hero h1 { font-size: clamp(2.3rem, 1.4rem + 4.6vw, 4.4rem); letter-spacing: -.03em; color: #fff; text-shadow: 0 2px 30px rgba(0,0,0,.35); }
.hero h1 .ember { color: var(--ember-bright); }
.hero p { font-size: clamp(1.1rem, 1rem + 0.7vw, 1.4rem); color: #eef2ef; max-width: 56ch; margin-top: 1.1rem; text-shadow: 0 1px 16px rgba(0,0,0,.4); }
.hero .btn-row { margin-top: 1.9rem; }
.hero__prompt { font-family: var(--font-mono); font-size: .82rem; letter-spacing: .02em; color: var(--ember-soft); margin-bottom: 1rem; opacity: .9; }
.hero__prompt b { color: #fff; font-weight: 600; }

/* page hero (interior pages) */
.pagehero { position: relative; padding-block: clamp(3rem, 8vw, 5.2rem) clamp(2.4rem, 5vw, 3.6rem); background: var(--pine-near); color: #fff; overflow: hidden; }
.pagehero::after { content: ""; position: absolute; inset: 0; background: radial-gradient(90% 120% at 85% 0%, rgba(224,122,47,.22), transparent 55%); pointer-events: none; }
.pagehero h1 { font-size: clamp(2rem, 1.4rem + 3vw, 3.4rem); color: #fff; position: relative; }
.pagehero p { color: #b9c5be; max-width: 60ch; margin-top: .9rem; position: relative; font-size: 1.12rem; }
.pagehero .eyebrow { color: var(--ember-bright); }
.crumbs { font-family: var(--font-mono); font-size: .78rem; color: var(--slate); margin-bottom: .8rem; position: relative; }
.crumbs a { color: var(--ember-soft); text-decoration: none; }
.crumbs a:hover { color: #fff; }
.crumbs span { opacity: .5; margin-inline: .4ch; }

/* ------------------------------------------------------------ Grids & cards */
.grid { display: grid; gap: clamp(1rem, 2.5vw, 1.6rem); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: clamp(1.3rem, 2.5vw, 1.7rem);
  box-shadow: var(--shadow); position: relative;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card--link:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: color-mix(in srgb, var(--ember) 40%, var(--line)); }
.card h3 { font-size: 1.2rem; margin-bottom: .45rem; }
.card p { color: var(--muted); font-size: .98rem; }
.card .card__foot { margin-top: 1rem; }
.card__icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  font-family: var(--font-mono); font-weight: 700; color: var(--ember);
  background: color-mix(in srgb, var(--ember) 14%, transparent);
  margin-bottom: 1rem; font-size: 1.05rem;
}
.card__tag { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--slate); }
a.card { text-decoration: none; color: inherit; display: block; }

/* Pillar (Tech / Text) split */
.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1rem, 3vw, 1.8rem); }
.pillar {
  position: relative; overflow: hidden; border-radius: var(--radius);
  padding: clamp(1.6rem, 3vw, 2.4rem); color: #fff; min-height: 320px;
  display: flex; flex-direction: column; justify-content: flex-end;
  text-decoration: none; box-shadow: var(--shadow);
  transition: transform .2s ease, box-shadow .2s ease;
}
.pillar:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); color: #fff; }
.pillar--tech { background: linear-gradient(150deg, #1c3a2e, #0f1714); }
.pillar--text { background: linear-gradient(150deg, #b6601f, #7a3d12); }
.pillar__cmd { font-family: var(--font-mono); font-size: .8rem; letter-spacing: .04em; opacity: .8; margin-bottom: auto; }
.pillar h3 { font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.2rem); color: #fff; margin-bottom: .5rem; }
.pillar p { color: rgba(255,255,255,.86); }
.pillar ul { list-style: none; margin-top: 1rem; display: flex; flex-wrap: wrap; gap: .5rem; }
.pillar li { font-family: var(--font-mono); font-size: .78rem; padding: .3rem .7rem; border-radius: 999px; background: rgba(255,255,255,.14); }
.pillar .arrow-link { color: #fff; margin-top: 1.1rem; }

/* Feature row (alternating image/text or split) */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center; }
.split--rev .split__media { order: 2; }
.split__media { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }

/* Terminal window motif */
.terminal {
  background: var(--pine-near); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow-lg); border: 1px solid #20342b; font-family: var(--font-mono);
}
.terminal__bar { display: flex; align-items: center; gap: .5rem; padding: .7rem .9rem; background: #16241d; border-bottom: 1px solid #20342b; }
.terminal__bar i { width: 11px; height: 11px; border-radius: 50%; display: block; }
.dot-r { background: #ff5f56; } .dot-y { background: #ffbd2e; } .dot-g { background: #27c93f; }
.terminal__title { margin-left: .6rem; font-size: .76rem; color: #6f8278; }
.terminal__body { padding: 1.1rem 1.2rem; font-size: .92rem; line-height: 1.85; color: #cdd9d2; }
.terminal__body .pl { color: var(--ember-bright); }
.terminal__body .cm { color: #5f7468; }
.terminal__body .ok { color: #27c93f; }
.terminal__body .str { color: #9fd2b6; }

/* Sub-section anchors (Tech/Text interior) */
.subsection { scroll-margin-top: 90px; }
.subsection + .subsection { margin-top: clamp(2.4rem, 5vw, 4rem); }

/* Stat / value rows */
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.value h3 { font-size: 1.08rem; margin-bottom: .35rem; display: flex; align-items: center; gap: .5rem; }
.value h3 .k { font-family: var(--font-mono); color: var(--ember); }
.value p { color: var(--muted); font-size: .95rem; }

/* Pull quote */
.pullquote { font-family: var(--font-serif); font-size: clamp(1.3rem, 1rem + 1.6vw, 2rem); line-height: 1.4; color: var(--ink); max-width: 26ch; }
.pullquote--center { max-width: 30ch; margin-inline: auto; text-align: center; }
.section--pine .pullquote { color: #fff; }
.attrib { font-family: var(--font-mono); font-size: .82rem; color: var(--slate); margin-top: 1rem; }

/* Tag list */
.taglist { display: flex; flex-wrap: wrap; gap: .5rem; }
.taglist span { font-family: var(--font-mono); font-size: .76rem; padding: .32rem .7rem; border-radius: 999px; background: var(--snow-warm); border: 1px solid var(--line); color: var(--slate-dk); }

/* Portfolio item */
.portfolio { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.2rem; }
.folio { display: flex; gap: 1rem; align-items: flex-start; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem 1.3rem; box-shadow: var(--shadow); transition: transform .18s ease, box-shadow .18s ease; text-decoration: none; color: inherit; }
.folio:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); color: inherit; }
.folio__badge { flex: 0 0 auto; width: 44px; height: 44px; border-radius: 11px; display: grid; place-items: center; font-family: var(--font-mono); font-weight: 700; font-size: 1.05rem; background: var(--evergreen); color: var(--ember-soft); }
.folio h4 { font-size: 1.02rem; margin-bottom: .2rem; }
.folio p { color: var(--muted); font-size: .9rem; }
.folio .dom { font-family: var(--font-mono); font-size: .76rem; color: var(--ember); margin-top: .4rem; display: inline-block; }

/* Steps */
.steps { counter-reset: step; display: grid; gap: 1.1rem; }
.step { display: flex; gap: 1rem; align-items: flex-start; }
.step__n { counter-increment: step; flex: 0 0 auto; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; font-family: var(--font-mono); font-weight: 700; color: #fff; background: var(--ember); }
.step__n::before { content: counter(step); }
.step h3 { font-size: 1.1rem; margin-bottom: .2rem; }
.step p { color: var(--muted); font-size: .96rem; }

/* CTA band */
.cta-band { background: linear-gradient(135deg, var(--evergreen), var(--pine-near)); color: #fff; border-radius: var(--radius); padding: clamp(2rem, 5vw, 3.4rem); position: relative; overflow: hidden; }
.cta-band::after { content: "://"; position: absolute; right: -.1em; bottom: -.35em; font-family: var(--font-mono); font-size: 12rem; font-weight: 800; color: rgba(244,162,60,.10); line-height: 1; pointer-events: none; }
.cta-band h2 { color: #fff; font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.4rem); }
.cta-band p { color: rgba(255,255,255,.85); max-width: 52ch; margin-top: .6rem; }
.cta-band .btn-row { margin-top: 1.5rem; }

/* Prose (book/blog) */
.prose p { margin-bottom: 1.05rem; }
.prose p + p { }

/* Contact */
.form { display: grid; gap: 1rem; }
.field { display: grid; gap: .4rem; }
.field label { font-weight: 600; font-size: .92rem; }
.field input, .field textarea, .field select {
  font: inherit; padding: .75rem .85rem; border-radius: 10px;
  border: 1.5px solid var(--line); background: var(--surface); color: var(--ink);
  width: 100%; transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--ember); box-shadow: 0 0 0 3px rgba(224,122,47,.18); }
.field textarea { min-height: 150px; resize: vertical; }
.form__note { font-size: .85rem; color: var(--muted); }

.contact-aside { display: grid; gap: 1.1rem; align-content: start; }
.contact-aside .card h3 { font-size: 1.05rem; }
.contact-aside a { word-break: break-word; }

/* FAQ */
details.faq { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: .3rem 1.2rem; box-shadow: var(--shadow); }
details.faq + details.faq { margin-top: .8rem; }
details.faq summary { cursor: pointer; font-weight: 650; padding: 1rem 0; list-style: none; display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; font-family: var(--font-mono); color: var(--ember); font-size: 1.3rem; transition: transform .2s ease; }
details.faq[open] summary::after { transform: rotate(45deg); }
details.faq p { color: var(--muted); padding-bottom: 1.1rem; margin: 0; }

/* ------------------------------------------------------------ Footer */
.site-footer { background: var(--pine-near); color: #b9c5be; padding-block: clamp(2.6rem, 5vw, 3.6rem) 1.6rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2rem; }
.site-footer h4 { color: #fff; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; font-family: var(--font-mono); margin-bottom: 1rem; font-weight: 600; }
.site-footer a { color: #b9c5be; text-decoration: none; }
.site-footer a:hover { color: var(--ember-bright); }
.site-footer ul { list-style: none; display: grid; gap: .55rem; font-size: .94rem; }
.footer-about p { font-size: .92rem; max-width: 34ch; margin-top: .9rem; color: #93a299; }
.footer-about .logo__name b { color: #fff; }
.footer-about .logo__name span { color: #93a299; }
.footer-bottom { border-top: 1px solid #20342b; margin-top: 2.4rem; padding-top: 1.4rem; display: flex; flex-wrap: wrap; gap: .6rem 1.2rem; justify-content: space-between; align-items: center; font-size: .84rem; color: #7e8f85; }
.footer-bottom .mono { font-family: var(--font-mono); }
.footer-bottom .ember { color: var(--ember); }

/* ------------------------------------------------------------ Reveal anim */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }

/* ------------------------------------------------------------ Responsive */
@media (max-width: 940px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 1.6rem; }
  .footer-about { grid-column: 1 / -1; }
  .values { grid-template-columns: 1fr; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  /* Mobile nav */
  .nav__toggle {
    display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 10px;
    background: var(--surface); cursor: pointer; padding: 0;
  }
  .nav__toggle span { display: block; width: 20px; height: 2px; background: var(--ink); margin-inline: auto; transition: transform .2s ease, opacity .2s ease; }
  body.nav-open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  body.nav-open .nav__toggle span:nth-child(2) { opacity: 0; }
  body.nav-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .nav__menu {
    position: fixed; inset: 68px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: .15rem;
    background: var(--surface); border-bottom: 1px solid var(--line);
    padding: 1rem clamp(1.1rem, 4vw, 2rem) 1.6rem;
    box-shadow: var(--shadow-lg);
    max-height: calc(100vh - 68px); overflow-y: auto;
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: opacity .2s ease, transform .2s ease, visibility .2s;
  }
  body.nav-open .nav__menu { opacity: 1; visibility: visible; transform: none; }
  .nav__link { font-size: 1.05rem; padding: .8rem .6rem; }
  .nav__item { width: 100%; }
  .nav__sub {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none; border-left: 2px solid var(--line);
    border-radius: 0; margin: 0 0 .4rem .7rem; padding: .1rem 0 .1rem .6rem;
    min-width: 0; max-height: 0; overflow: hidden;
    transition: max-height .25s ease;
  }
  .nav__item.open > .nav__sub { max-height: 600px; }
  .nav__item.open .caret { transform: rotate(225deg) translateY(2px); }
  .nav__sub a { padding: .55rem .5rem; }
  .nav__cta { margin-top: .6rem; }
  .nav__cta .btn { width: 100%; justify-content: center; }
}

@media (max-width: 760px) {
  .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .split--rev .split__media { order: 0; }
  .portfolio { grid-template-columns: 1fr; }
  .grid--2 { grid-template-columns: 1fr; }
  /* Fixed background is janky / costly on mobile — pin it down */
  .hero__bg { background-attachment: scroll; background-position: center 30%; }
  .hero { min-height: 78vh; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .hero__bg { background-attachment: scroll; }
}