/* ============================================================
   Mixto Math — Marketing site layer
   Built ON the Mixto design tokens (_ds/.../styles.css).
   Reproduces the DS candy-edge button + card vocabulary for a
   plain-HTML multi-page site. Adult/marketing register.
   ============================================================ */

html { scroll-behavior: smooth; }
body {
  background: var(--bg-app);
  color: var(--text-body);
  overflow-x: hidden;
}
::selection { background: var(--teal-200); color: var(--ink-900); }
a { color: inherit; }

/* ---- Layout containers ---- */
.wrap { max-width: var(--container-max); margin: 0 auto; padding-inline: 32px; }
.wrap-narrow { max-width: 760px; margin: 0 auto; padding-inline: 32px; }
.section { padding-block: 96px; position: relative; }
.section--tight { padding-block: 64px; }
.section--snow { background: var(--snow); }
.section--paper { background: var(--paper); }
.section--navy { background: var(--navy-900); color: #fff; }
.section--navy .eyebrow { color: var(--teal-400); }

/* periwinkle hero wash */
.wash {
  background:
    radial-gradient(90% 70% at 78% -10%, rgba(24,201,214,.10), transparent 60%),
    radial-gradient(120% 90% at 12% 0%, #FFFFFF, var(--snow) 72%);
}
.wash-navy {
  background:
    radial-gradient(80% 70% at 80% -10%, rgba(24,201,214,.18), transparent 60%),
    radial-gradient(70% 80% at 0% 110%, rgba(255,122,45,.16), transparent 55%),
    var(--navy-900);
}

/* ---- Type helpers ---- */
.eyebrow {
  font-family: var(--font-body);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--teal-600);
  display: inline-flex; align-items: center; gap: 8px;
}
.eyebrow .mixto-state-dot { width: 8px; height: 8px; }
.h-hero {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.6rem, 5.2vw, 4rem);
  line-height: 1.02;
  letter-spacing: -.025em;
  color: var(--ink-900);
  text-wrap: balance;
}
.h-section {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 3.4vw, 2.9rem);
  line-height: 1.08;
  letter-spacing: -.022em;
  color: var(--ink-900);
  text-wrap: balance;
}
.section--navy .h-hero, .section--navy .h-section { color: #fff; }
.h-card {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: -.01em;
  color: var(--ink-900);
}
.lead {
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  line-height: 1.55;
  color: var(--text-muted);
  max-width: 52ch;
  text-wrap: pretty;
}
.section--navy .lead { color: var(--navy-300); }
.muted { color: var(--text-muted); }
.tnum { font-family: var(--font-numeric); font-weight: 800; font-variant-numeric: tabular-nums; }
.accent-x { color: var(--orange-500); }

/* ---- Wordmark ---- */
.wm {
  font-family: var(--font-display);
  font-weight: 600; letter-spacing: -.02em; line-height: 1;
  display: inline-flex; align-items: baseline; color: var(--ink-900);
  text-decoration: none;
}
.wm .x { color: var(--orange-500); }
.wm--light { color: #fff; }

/* ============================================================
   Buttons — DS candy edge, reproduced exactly for plain HTML
   ============================================================ */
.btn {
  --_face: var(--action-primary);
  --_edge: var(--action-primary-edge);
  --_ink: var(--navy-900);
  font-family: var(--font-display);
  font-weight: 600;
  border: 0; cursor: pointer; color: var(--_ink);
  background: var(--_face);
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  border-radius: var(--radius-pill);
  box-shadow: 0 var(--edge-thickness) 0 0 var(--_edge);
  transition: transform var(--dur-quick) var(--ease-out),
              box-shadow var(--dur-quick) var(--ease-out),
              filter var(--dur-quick) var(--ease-out);
  text-decoration: none; white-space: nowrap; line-height: 1;
  font-size: var(--text-body); padding: 13px 24px; min-height: var(--tap-min);
}
.btn:hover { filter: brightness(1.04); }
.btn:active {
  transform: translateY(var(--edge-press-travel));
  box-shadow: 0 calc(var(--edge-thickness) - var(--edge-press-travel)) 0 0 var(--_edge);
}
.btn:focus-visible { outline: none; box-shadow: 0 var(--edge-thickness) 0 0 var(--_edge), var(--glow-teal); }
.btn--secondary { --_face: var(--action-secondary); --_edge: var(--action-secondary-edge); }
.btn--accent { --_face: var(--lime-500); --_edge: var(--lime-600); }
.btn--ghost { background: transparent; box-shadow: inset 0 0 0 2px var(--hairline); color: var(--ink-700); }
.btn--ghost:active { transform: none; box-shadow: inset 0 0 0 2px var(--hairline); filter: brightness(.97); }
.btn--ghost-light { background: transparent; box-shadow: inset 0 0 0 2px rgba(255,255,255,.22); color: #fff; }
.btn--ghost-light:active { transform: none; box-shadow: inset 0 0 0 2px rgba(255,255,255,.22); }
.btn--quiet { background: transparent; box-shadow: none; color: var(--teal-600); padding-inline: 6px; }
.btn--quiet:active { transform: none; box-shadow: none; }
.btn--lg { font-size: var(--text-body-lg); padding: 17px 32px; min-height: var(--tap-comfortable); border-radius: var(--radius-xl); }
.btn--sm { font-size: var(--text-body-sm); padding: 9px 16px; min-height: 38px; }
.btn i { font-size: 1.2em; display: inline-flex; align-items: center; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.applink {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--navy-900); color: #fff; text-decoration: none;
  border-radius: var(--radius-md); padding: 10px 18px;
  box-shadow: var(--shadow-sm); transition: transform var(--dur-quick) var(--ease-out);
}
.applink:hover { transform: translateY(-2px); }
.applink i { font-size: 26px; color: #fff; }
.applink small { display: block; font-size: 10px; letter-spacing: .04em; opacity: .72; font-family: var(--font-body); font-weight: 700; text-transform: uppercase; }
.applink b { font-family: var(--font-display); font-weight: 600; font-size: 16px; line-height: 1.1; }

/* ============================================================
   Pre-launch strip — Mixto is in build; this says so honestly
   ============================================================ */
.prebar {
  background: var(--navy-900); color: #fff;
  font-family: var(--font-body); font-weight: 700; font-size: 13.5px;
}
.prebar .wrap {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding-block: 9px; text-align: center; flex-wrap: wrap;
}
.prebar i { color: var(--teal-400); font-size: 16px; }
.prebar a { color: var(--teal-400); text-decoration: underline; text-underline-offset: 3px; }
.prebar a:hover { color: #fff; }
@media (max-width: 640px) { .prebar i { display: none; } .prebar .wrap { padding-block: 10px; } }

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(244,246,252,.82);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--hairline);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.nav .wm { font-size: 26px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  text-decoration: none; color: var(--ink-700); font-weight: 700;
  font-size: 15px; padding: 9px 14px; border-radius: var(--radius-pill);
  transition: background var(--dur-quick), color var(--dur-quick);
}
.nav-links a:hover { background: var(--surface-well); color: var(--ink-900); }
.nav-links a.is-active { color: var(--teal-700); background: var(--teal-100); }
.nav-right { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; }

/* ============================================================
   Cards / pillars / stats
   ============================================================ */
.card {
  background: var(--surface-panel);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 28px;
}
.card--pad-lg { padding: 36px; }
.card--soft { box-shadow: var(--shadow-xs); }
.card--lift { transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out); }
.card--lift:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.ico {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 26px; margin-bottom: 18px;
}
.ico--teal { background: var(--teal-100); color: var(--teal-700); }
.ico--orange { background: var(--orange-100); color: var(--orange-700); }
.ico--lime { background: var(--lime-100); color: var(--lime-600); }
.ico--navy { background: var(--surface-well); color: var(--ink-900); }
.ico--mastery { background: var(--mastery-200); color: var(--mastery-700); }

.pillar p { color: var(--text-muted); line-height: 1.55; margin: 10px 0 0; }
.pillar h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.25rem; color: var(--ink-900); margin: 0; }

/* stat tile */
.stat__label { font-family: var(--font-body); font-weight: 800; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted); }
.stat__value { font-family: var(--font-numeric); font-weight: 800; font-variant-numeric: tabular-nums; color: var(--ink-900); font-size: clamp(2.4rem, 4vw, 3.4rem); line-height: 1; margin-top: 8px; letter-spacing: -.02em; }
.section--navy .stat__value { color: #fff; }
.section--navy .stat__label { color: var(--navy-300); }
.stat__sub { color: var(--text-muted); font-size: 14px; margin-top: 8px; font-weight: 600; }
.section--navy .stat__sub { color: var(--navy-300); }

/* badge */
.badge {
  font-family: var(--font-body); font-weight: 800; font-size: 12px; line-height: 1;
  display: inline-flex; align-items: center; gap: .45em;
  padding: 7px 13px; border-radius: var(--radius-pill); white-space: nowrap;
}
.badge i { font-size: 1.25em; }
.badge--teal { background: var(--teal-100); color: var(--teal-700); }
.badge--orange { background: var(--orange-100); color: var(--orange-700); }
.badge--mastered { background: var(--mastery-200); color: var(--mastery-700); }
.badge--progress { background: var(--amber-100); color: var(--amber-600); }
.badge--neutral { background: var(--surface-well); color: var(--text-muted); }
.badge--streak { background: var(--orange-500); color: #fff; }

/* ---- mastery legend ---- */
.legend { display: flex; flex-wrap: wrap; gap: 18px; font-size: 13px; font-weight: 700; color: var(--text-muted); }
.legend span { display: inline-flex; align-items: center; gap: 7px; }
.legend .dot { width: 11px; height: 11px; border-radius: 50%; }

/* ---- eyebrow-on-dark + chips ---- */
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--paper); border: 1px solid var(--border-card);
  border-radius: var(--radius-pill); padding: 8px 16px;
  font-weight: 700; font-size: 14px; color: var(--ink-700); box-shadow: var(--shadow-xs);
}
.chip i { color: var(--teal-600); font-size: 1.15em; }

/* ============================================================
   Hero scaffold
   ============================================================ */
.hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; padding-block: 84px 96px; }
.hero__copy > * + * { margin-top: 22px; }
.hero__visual { display: flex; justify-content: center; position: relative; }
.trustline { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; color: var(--text-muted); font-weight: 700; font-size: 14px; }
.trustline .stars { color: var(--orange-500); letter-spacing: 2px; }

/* split (role) cards */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.rolecard {
  position: relative; overflow: hidden;
  border-radius: var(--radius-xl); padding: 36px;
  border: 1px solid var(--border-card); background: var(--paper);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
  display: flex; flex-direction: column; min-height: 280px;
}
.rolecard:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.rolecard__tag { font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.rolecard--parent { background: linear-gradient(160deg, #fff, var(--teal-100)); }
.rolecard--parent .rolecard__tag { color: var(--teal-700); }
.rolecard--teacher { background: linear-gradient(160deg, #fff, var(--orange-100)); }
.rolecard--teacher .rolecard__tag { color: var(--orange-700); }
.rolecard h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.8rem; color: var(--ink-900); margin: 14px 0 8px; letter-spacing: -.02em; }
.rolecard p { color: var(--ink-700); line-height: 1.5; margin: 0 0 24px; flex: 1; }
.rolecard__go { margin-top: auto; }

/* how it works steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
.step { position: relative; }
.step__n {
  font-family: var(--font-display); font-weight: 700; font-size: 18px;
  width: 46px; height: 46px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--navy-900); color: var(--lime-500); margin-bottom: 18px;
}
.step h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.3rem; color: var(--ink-900); margin: 0 0 8px; }
.step p { color: var(--text-muted); line-height: 1.5; margin: 0; }

/* fact strip (replaces the logo wall — device + safety facts, not logos) */
.logos { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 18px 40px; }
.logo-pill {
  display: inline-flex; align-items: center; gap: 9px; color: var(--ink-500);
  font-family: var(--font-display); font-weight: 600; font-size: 18px; opacity: .8;
}
.logo-pill i { font-size: 22px; }

/* quote */
.quote { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.4rem, 2.6vw, 2rem); line-height: 1.32; color: var(--ink-900); letter-spacing: -.01em; text-wrap: balance; }
.section--navy .quote { color: #fff; }
.quote-by { display: flex; align-items: center; gap: 14px; margin-top: 24px; }
.quote-av { width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(150deg, var(--teal-500), var(--navy-700)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 22px; }
.quote-by b { display: block; font-family: var(--font-display); font-weight: 600; color: var(--ink-900); }
.section--navy .quote-by b { color: #fff; }
.quote-by span { font-size: 14px; color: var(--text-muted); }
.section--navy .quote-by span { color: var(--navy-300); }

/* CTA band */
.ctaband {
  border-radius: var(--radius-2xl); padding: 64px;
  text-align: center; position: relative; overflow: hidden;
  background:
    radial-gradient(70% 120% at 80% 0%, rgba(24,201,214,.22), transparent 60%),
    radial-gradient(60% 120% at 10% 100%, rgba(255,122,45,.20), transparent 55%),
    var(--navy-900);
  color: #fff;
}
.ctaband .h-section { color: #fff; }
.ctaband .lead { color: var(--navy-300); margin-inline: auto; }

/* ============================================================
   Footer
   ============================================================ */
.footer { background: var(--navy-950); color: var(--navy-300); padding-block: 64px 40px; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.footer .wm { font-size: 30px; }
.footer-tag { font-family: var(--font-display); font-weight: 500; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--teal-400); margin-top: 12px; }
.footer-blurb { color: var(--navy-300); max-width: 34ch; margin-top: 14px; line-height: 1.55; font-size: 15px; }
.footer h4 { font-family: var(--font-display); font-weight: 600; font-size: 14px; letter-spacing: .04em; text-transform: uppercase; color: var(--navy-400); margin: 0 0 16px; }
.footer-col a { display: block; color: #C5CBE6; text-decoration: none; padding: 6px 0; font-size: 15px; font-weight: 600; }
.footer-col a:hover { color: #fff; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--navy-700); font-size: 13px; color: var(--navy-400); }
.footer-compliance { display: flex; gap: 10px; flex-wrap: wrap; }
.footer-compliance span { display: inline-flex; align-items: center; gap: 6px; background: var(--navy-800); border-radius: var(--radius-pill); padding: 6px 12px; font-weight: 700; color: var(--navy-300); }
.footer-compliance i { color: var(--teal-400); }

/* ============================================================
   Device frames
   ============================================================ */
.phone {
  width: 300px; background: var(--navy-900); border-radius: 44px;
  padding: 12px; box-shadow: var(--shadow-xl); position: relative; flex: none;
}
.phone::before { content: ""; position: absolute; top: 22px; left: 50%; transform: translateX(-50%); width: 96px; height: 26px; background: var(--navy-900); border-radius: 0 0 16px 16px; z-index: 3; }
.phone-screen { background: var(--snow); border-radius: 34px; overflow: hidden; position: relative; aspect-ratio: 300/620; }
.browser {
  width: 100%; background: var(--paper); border-radius: var(--radius-lg);
  border: 1px solid var(--border-card); box-shadow: var(--shadow-lg); overflow: hidden;
}
.browser-bar { display: flex; align-items: center; gap: 8px; padding: 13px 16px; background: var(--snow); border-bottom: 1px solid var(--border-card); }
.browser-bar .dot { width: 11px; height: 11px; border-radius: 50%; }
.browser-url { margin-left: 12px; flex: 1; background: var(--paper); border: 1px solid var(--border-card); border-radius: var(--radius-pill); padding: 5px 14px; font-size: 12px; color: var(--text-muted); font-weight: 700; max-width: 320px; }

/* float deco */
.float-badge { position: absolute; background: var(--paper); border-radius: var(--radius-md); box-shadow: var(--shadow-md); padding: 12px 16px; display: flex; align-items: center; gap: 11px; border: 1px solid var(--border-card); }
.float-badge i { font-size: 22px; }
.float-badge b { font-family: var(--font-display); font-weight: 600; color: var(--ink-900); font-size: 15px; }
.float-badge small { display: block; color: var(--text-muted); font-size: 12px; font-weight: 700; }

/* ============================================================
   Reveal on scroll
   ============================================================ */
.reveal { opacity: 1; transform: none; transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
.reveal.hide { opacity: 0; transform: translateY(22px); }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) { .reveal, .reveal.hide { opacity: 1; transform: none; } }

/* ============================================================
   Page header (interior pages)
   ============================================================ */
.pagehead { padding-block: 72px 56px; }
.pagehead .h-hero { max-width: 16ch; }
.pagehead .lead { margin-top: 20px; }

/* feature row (alternating) */
.frow { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.frow--flip .frow__media { order: -1; }
.frow__media { display: flex; justify-content: center; }

/* pricing */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.price {
  background: var(--paper); border: 1px solid var(--border-card); border-radius: var(--radius-xl);
  padding: 32px; display: flex; flex-direction: column; box-shadow: var(--shadow-sm); position: relative;
}
.price--featured { border: 2px solid var(--teal-500); box-shadow: var(--shadow-md); }
.price__pop { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--teal-500); color: var(--navy-900); font-family: var(--font-display); font-weight: 600; font-size: 12px; letter-spacing: .04em; text-transform: uppercase; padding: 6px 16px; border-radius: var(--radius-pill); }
.price__name { font-family: var(--font-display); font-weight: 600; font-size: 1.4rem; color: var(--ink-900); }
.price__amt { display: flex; align-items: baseline; gap: 6px; margin: 16px 0 4px; }
.price__amt b { font-family: var(--font-numeric); font-weight: 800; font-size: 3rem; color: var(--ink-900); letter-spacing: -.02em; }
.price__amt span { color: var(--text-muted); font-weight: 700; }
.price__list { list-style: none; padding: 0; margin: 24px 0; display: flex; flex-direction: column; gap: 13px; flex: 1; }
.price__list li { display: flex; gap: 11px; align-items: flex-start; color: var(--ink-700); font-weight: 600; line-height: 1.45; }
.price__list i { color: var(--mastery-600); font-size: 20px; flex: none; margin-top: 1px; }

/* faq */
.faq { border-top: 1px solid var(--border-card); }
.faq details { border-bottom: 1px solid var(--border-card); }
.faq summary { cursor: pointer; list-style: none; padding: 22px 4px; font-family: var(--font-display); font-weight: 600; font-size: 1.2rem; color: var(--ink-900); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary i { color: var(--teal-600); transition: transform var(--dur-base) var(--ease-out); flex: none; }
.faq details[open] summary i { transform: rotate(45deg); }
.faq p { margin: 0 4px 24px; color: var(--text-muted); line-height: 1.6; max-width: 70ch; }

/* case study / scenario */
.casecard { display: grid; grid-template-columns: 1fr; gap: 0; overflow: hidden; border-radius: var(--radius-xl); border: 1px solid var(--border-card); background: var(--paper); box-shadow: var(--shadow-sm); }
.case-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

/* comparison rows (Mixto vs. the alternatives) */
.vs { display: flex; flex-direction: column; gap: 0; }
.vs__row { display: grid; grid-template-columns: 200px 1fr 1fr; gap: 24px; padding: 22px 4px; border-bottom: 1px solid var(--border-card); align-items: baseline; }
.vs__row:first-child { border-top: 1px solid var(--border-card); }
.vs__name { font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; color: var(--ink-900); }
.vs__them { color: var(--text-muted); line-height: 1.5; }
.vs__us { color: var(--ink-700); line-height: 1.5; font-weight: 700; }
.vs__us i { color: var(--mastery-600); margin-right: 6px; }
@media (max-width: 780px) { .vs__row { grid-template-columns: 1fr; gap: 8px; } }

/* team */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.member-av { width: 84px; height: 84px; border-radius: 50%; background: linear-gradient(150deg, var(--teal-400), var(--navy-700)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 34px; font-family: var(--font-display); font-weight: 600; margin: 0 auto 16px; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; gap: 40px; }
  .hero__visual { order: 2; }
  .frow, .frow--flip { grid-template-columns: 1fr; gap: 32px; }
  .frow--flip .frow__media { order: 0; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .price-grid { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; top: 70px; left: 0; right: 0; background: var(--paper);
    border-bottom: 1px solid var(--border-card); padding: 12px 24px 20px; gap: 4px;
    box-shadow: var(--shadow-md);
  }
  .nav-toggle { display: inline-flex; }
  .nav-cta-desktop { display: none; }
}
@media (max-width: 680px) {
  .section { padding-block: 64px; }
  .wrap, .wrap-narrow { padding-inline: 22px; }
  .split, .grid-2, .grid-3, .steps, .case-metrics { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .ctaband { padding: 40px 26px; }
  .card--pad-lg { padding: 26px; }
  .team-grid { grid-template-columns: 1fr 1fr; }
}