/* =============================================================
   ZORYN AI — site.css
   Design system + components for zorynai.com
   Palette + type per (C) Brand Guidelines (Apr 2026)
   Motion direction per (C) Synaptic Drift Generative Art Philosophy
   ============================================================= */

/* ---------- Tokens ---------- */
:root {
  --ink:        #0F1729;   /* primary dark bg / dark text */
  --ink-2:      #131c33;   /* raised dark surface */
  --ink-3:      #1b2742;   /* card on dark */
  --surface:    #FAFAF9;   /* light bg */
  --surface-2:  #F3F3F1;   /* light raised */
  --teal:       #22D3EE;   /* the single hero accent */
  --teal-deep:  #0ea5c4;
  --amber:      #F59E0B;   /* human warmth */
  --success:    #10B981;
  --muted:      #52525B;   /* secondary text on light */
  --muted-d:    #93a1bf;   /* secondary text on dark */
  --border:     #E4E4E7;
  --border-d:   rgba(148,163,184,0.16);
  --cyan:       #00d4ff;   /* synaptic signal */
  --magenta:    #ff006e;   /* synaptic signal */

  --maxw: 1200px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 16px;
  --radius-sm: 10px;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-soft: 0 1px 2px rgba(15,23,41,.04), 0 8px 24px rgba(15,23,41,.06);
  --shadow-lift: 0 18px 50px rgba(15,23,41,.14);
  --glow-teal: 0 0 0 1px rgba(34,211,238,.35), 0 0 40px rgba(34,211,238,.25);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  font-family: var(--font-sans);
  background: var(--ink);
  color: var(--surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
::selection { background: var(--teal); color: var(--ink); }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(4.5rem, 9vw, 8rem); position: relative; }
.section--dark { background: var(--ink); color: var(--surface); }
.section--ink-solid { background: var(--ink); }
.section--light { background: var(--surface); color: var(--ink); }
.section--light-2 { background: var(--surface-2); color: var(--ink); }
.eyebrow {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--teal);
  display: inline-flex; align-items: center; gap: .6rem;
}
.eyebrow--muted { color: var(--muted); }
.eyebrow::before {
  content: ""; width: 24px; height: 1px; background: currentColor; opacity: .6;
}
.section-head { max-width: 720px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head h2 {
  font-size: clamp(2rem, 4.4vw, 3.25rem);
  line-height: 1.08; letter-spacing: -.03em; font-weight: 700;
  margin-top: 1rem;
}
.section-head p { margin-top: 1.1rem; color: var(--muted); font-size: 1.125rem; max-width: 60ch; }
.section--dark .section-head p { color: var(--muted-d); }

/* ---------- Type helpers ---------- */
h1,h2,h3,h4 { font-weight: 700; letter-spacing: -.02em; }
.mono { font-family: var(--font-mono); }
.text-teal { color: var(--teal); }
.text-amber { color: var(--amber); }
.text-muted { color: var(--muted); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .55rem;
  padding: .85rem 1.4rem; border-radius: 999px;
  font-weight: 600; font-size: .98rem; letter-spacing: -.01em;
  transition: transform .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease), color .25s var(--ease);
  will-change: transform;
}
.btn svg { width: 18px; height: 18px; }
.btn--primary { background: var(--teal); color: var(--ink); box-shadow: 0 8px 30px rgba(34,211,238,.28); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(34,211,238,.42); }
.btn--ghost { color: var(--surface); box-shadow: inset 0 0 0 1px rgba(255,255,255,.22); }
.btn--ghost:hover { box-shadow: inset 0 0 0 1px rgba(34,211,238,.6); transform: translateY(-2px); }
.btn--dark { background: var(--ink); color: var(--surface); }
.btn--dark:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); }
.btn--lg { padding: 1.05rem 1.8rem; font-size: 1.05rem; }
.arrow { transition: transform .3s var(--ease); }
.btn:hover .arrow, .link-arrow:hover .arrow { transform: translateX(4px); }
.link-arrow {
  display: inline-flex; align-items: center; gap: .4rem;
  font-weight: 600; color: var(--teal);
}
.link-arrow svg { width: 16px; height: 16px; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background .4s var(--ease), backdrop-filter .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav__inner {
  height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
}
.nav.is-scrolled {
  background: rgba(15,23,41,.72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom-color: var(--border-d);
}
.brand { display: inline-flex; align-items: baseline; gap: .12rem; font-weight: 700; font-size: 1.2rem; letter-spacing: -.02em; }
.brand .z { color: var(--surface); }
.brand .ai { color: var(--teal); }
.nav__links { display: flex; align-items: center; gap: 2rem; }
.nav__links a { font-size: .95rem; color: var(--muted-d); font-weight: 500; transition: color .2s; position: relative; }
.nav__links a:hover { color: var(--surface); }
.nav__links a::after {
  content:""; position:absolute; left:0; right:0; bottom:-6px; height:1px; background: var(--teal);
  transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
}
.nav__links a:hover::after { transform: scaleX(1); }
.nav__right { display: flex; align-items: center; gap: 1.1rem; }
.lang {
  display: inline-flex; font-family: var(--font-mono); font-size: .78rem; letter-spacing: .04em;
  border: 1px solid var(--border-d); border-radius: 999px; overflow: hidden;
}
.lang a { padding: .35rem .6rem; color: var(--muted-d); transition: background .2s, color .2s; }
.lang a.is-active { background: var(--teal); color: var(--ink); font-weight: 600; }
.nav__toggle { display: none; }

/* ---------- Hero ---------- */
#synaptic {
  position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: 0;
  pointer-events: none; transition: opacity .6s linear;
}
.hero {
  position: relative; z-index: 2;
  min-height: 100vh; display: flex; align-items: center;
  padding-top: 70px;
  background:
    radial-gradient(120% 80% at 80% -10%, rgba(34,211,238,.10), transparent 55%),
    linear-gradient(180deg, rgba(15,23,41,0) 60%, var(--ink) 100%);
}
.hero__grid {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center; width: 100%;
}
.hero__eyebrow { margin-bottom: 1.6rem; }
.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.6rem); line-height: 1.02; letter-spacing: -.035em;
  font-weight: 700;
}
.hero h1 .grad {
  background: linear-gradient(100deg, var(--surface) 30%, var(--teal));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__sub { margin-top: 1.5rem; font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--muted-d); max-width: 38ch; }
.hero__cta { margin-top: 2.2rem; display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.hero__meta { margin-top: 2.2rem; display: flex; gap: 2rem; flex-wrap: wrap; }
.hero__meta div { display: flex; flex-direction: column; }
.hero__meta b { font-family: var(--font-mono); font-size: 1.4rem; color: var(--surface); letter-spacing: -.02em; }
.hero__meta span { font-size: .8rem; color: var(--muted-d); }

/* voice demo card */
.voicecard {
  background: linear-gradient(160deg, rgba(27,39,66,.9), rgba(19,28,51,.92));
  border: 1px solid var(--border-d); border-radius: 20px; padding: 1.6rem;
  box-shadow: 0 30px 80px rgba(0,0,0,.45);
  backdrop-filter: blur(6px);
}
.voicecard__top { display: flex; align-items: center; justify-content: space-between; }
.statusdot { display: inline-flex; align-items: center; gap: .5rem; font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--success); }
.statusdot i { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 0 rgba(16,185,129,.6); animation: pulse 2s infinite; }
@keyframes pulse { 0%{box-shadow:0 0 0 0 rgba(16,185,129,.5)} 70%{box-shadow:0 0 0 10px rgba(16,185,129,0)} 100%{box-shadow:0 0 0 0 rgba(16,185,129,0)} }
.voicecard__label { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-d); }
.wave { display: flex; align-items: flex-end; gap: 4px; height: 56px; margin: 1.4rem 0 1.1rem; }
.wave i { flex: 1; background: linear-gradient(var(--teal), var(--teal-deep)); border-radius: 4px; height: 20%; opacity: .85; }
.phone { font-family: var(--font-mono); font-size: 1.8rem; letter-spacing: -.01em; color: var(--surface); }
.voicecard small { display: block; color: var(--muted-d); font-size: .82rem; margin-top: .5rem; }
.transcript { margin-top: 1.1rem; border-top: 1px solid var(--border-d); padding-top: 1rem; min-height: 80px; font-size: .86rem; }
.transcript p { margin-bottom: .5rem; opacity: 0; transform: translateY(6px); animation: lineIn .5s var(--ease) forwards; }
.transcript .ai { color: var(--teal); }
.transcript .caller { color: var(--muted-d); }
@keyframes lineIn { to { opacity: 1; transform: none; } }
.scrollcue { position: absolute; bottom: 1.6rem; left: 50%; transform: translateX(-50%); z-index: 3; font-family: var(--font-mono); font-size: .7rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted-d); display: flex; flex-direction: column; align-items: center; gap: .5rem; }
.scrollcue .line { width: 1px; height: 38px; background: linear-gradient(var(--teal), transparent); animation: cue 2.2s var(--ease) infinite; }
@keyframes cue { 0%,100%{ transform: scaleY(.4); opacity:.4 } 50%{ transform: scaleY(1); opacity:1 } }

/* ---------- Marquee ---------- */
.marquee { overflow: hidden; border-block: 1px solid var(--border); padding-block: 1.4rem; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee__track { display: flex; gap: 3.5rem; width: max-content; animation: scrollx 32s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__track span { font-weight: 600; font-size: 1.05rem; color: var(--muted); white-space: nowrap; display: inline-flex; align-items: center; gap: .7rem; letter-spacing: -.01em; }
.marquee__track span::before { content:""; width:6px; height:6px; border-radius:50%; background: var(--teal); }
@keyframes scrollx { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce){ .marquee__track{ animation: none; } }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border-d); border: 1px solid var(--border-d); border-radius: var(--radius); overflow: hidden; }
.stat { background: var(--ink); padding: 2.2rem 1.6rem; }
.stat b { font-family: var(--font-mono); font-size: clamp(2.2rem,4vw,3.2rem); line-height: 1; letter-spacing: -.03em; color: var(--surface); display: block; }
.stat b .u { color: var(--teal); }
.stat span { display: block; margin-top: .7rem; color: var(--muted-d); font-size: .9rem; }

/* ---------- Service grid ---------- */
.cardgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.scard {
  position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.8rem; transition: transform .4s var(--ease), border-color .4s var(--ease), box-shadow .4s var(--ease);
  transform-style: preserve-3d; will-change: transform;
}
.scard:hover { transform: translateY(-6px); border-color: var(--teal); box-shadow: var(--shadow-lift); }
.scard__ic { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: rgba(34,211,238,.10); color: var(--teal-deep); margin-bottom: 1.2rem; }
.scard__ic svg { width: 22px; height: 22px; }
.scard h3 { font-size: 1.25rem; letter-spacing: -.02em; }
.scard p { margin-top: .55rem; color: var(--muted); font-size: .95rem; }
.scard__foot { margin-top: 1.3rem; display: flex; align-items: center; justify-content: space-between; }
.scard__price { font-family: var(--font-mono); color: var(--teal-deep); font-weight: 600; font-size: .92rem; }
.tag { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: .25rem .55rem; }

/* ---------- Pillars ---------- */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; }
.pillar { padding: 1.6rem 0; }
.pillar__ic { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; background: rgba(34,211,238,.12); color: var(--teal); margin-bottom: 1.2rem; }
.pillar__ic svg { width: 24px; height: 24px; }
.pillar h3 { font-size: 1.3rem; letter-spacing: -.02em; }
.pillar p { margin-top: .7rem; color: var(--muted-d); font-size: 1rem; }
.section--light .pillar p { color: var(--muted); }

/* ---------- Bundles ---------- */
.bundles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; align-items: stretch; }
.bundle {
  display: flex; flex-direction: column; background: var(--ink-2); border: 1px solid var(--border-d);
  border-radius: var(--radius); padding: 2rem 1.8rem; position: relative; transition: transform .35s var(--ease), border-color .35s var(--ease);
}
.bundle:hover { transform: translateY(-6px); border-color: rgba(34,211,238,.4); }
.bundle.is-feature { border-color: var(--teal); box-shadow: var(--glow-teal); }
.bundle__badge { position: absolute; top: -12px; left: 1.8rem; background: var(--teal); color: var(--ink); font-family: var(--font-mono); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; padding: .3rem .7rem; border-radius: 999px; font-weight: 600; }
.bundle__emoji { font-size: 1.6rem; }
.bundle h3 { font-size: 1.4rem; margin-top: .7rem; letter-spacing: -.02em; }
.bundle__desc { color: var(--muted-d); font-size: .92rem; margin-top: .5rem; min-height: 3.2em; }
.bundle__price { margin-top: 1.4rem; font-family: var(--font-mono); }
.bundle__price .setup { font-size: 2rem; color: var(--surface); letter-spacing: -.02em; }
.bundle__price .mo { color: var(--teal); font-size: 1rem; }
.bundle__ltv { margin-top: .4rem; font-size: .82rem; color: var(--muted-d); }
.bundle ul { list-style: none; margin-top: 1.4rem; display: flex; flex-direction: column; gap: .6rem; }
.bundle li { display: flex; gap: .6rem; font-size: .92rem; color: var(--muted-d); }
.bundle li svg { width: 18px; height: 18px; color: var(--teal); flex: none; margin-top: 2px; }
.bundle .btn { margin-top: 1.6rem; justify-content: center; }

/* ---------- Process ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.2rem; counter-reset: step; position: relative; }
.step { position: relative; }
.step__n { width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; background: var(--teal); color: var(--ink); font-family: var(--font-mono); font-weight: 700; margin-bottom: 1.1rem; }
.step h3 { font-size: 1.05rem; letter-spacing: -.01em; }
.step p { margin-top: .55rem; color: var(--muted); font-size: .9rem; }
.section--dark .step p { color: var(--muted-d); }

/* ---------- Bilingual split ---------- */
.bilingual { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.bilingual > div { padding: 2.4rem; border-radius: var(--radius); border: 1px solid var(--border-d); background: var(--ink-2); }
.bilingual h3 { font-size: clamp(1.5rem, 3vw, 2.1rem); letter-spacing: -.02em; }
.bilingual p { margin-top: 1rem; color: var(--muted-d); }
.bilingual .flag { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--teal); }

/* ---------- Final CTA ---------- */
.finalcta { position: relative; z-index: 2; text-align: center; }
.finalcta h2 { font-size: clamp(2.2rem, 5vw, 3.6rem); letter-spacing: -.03em; line-height: 1.05; max-width: 16ch; margin-inline: auto; }
.finalcta p { margin-top: 1.2rem; color: var(--muted-d); font-size: 1.15rem; max-width: 52ch; margin-inline: auto; }
.finalcta .btn { margin-top: 2rem; }
.finalcta .alt { margin-top: 1.4rem; font-family: var(--font-mono); font-size: .85rem; color: var(--muted-d); }
.finalcta .alt a { color: var(--teal); }

/* ---------- Footer ---------- */
.footer { background: var(--ink); border-top: 1px solid var(--border-d); padding-block: clamp(3rem,5vw,4.5rem) 2rem; position: relative; z-index: 2; }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2rem; }
.footer h4 { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted-d); margin-bottom: 1.1rem; }
.footer ul { list-style: none; display: flex; flex-direction: column; gap: .7rem; }
.footer a { color: var(--muted-d); font-size: .95rem; transition: color .2s; }
.footer a:hover { color: var(--surface); }
.footer__brand p { color: var(--muted-d); margin-top: .9rem; font-size: .95rem; max-width: 34ch; }
.footer__social { display: flex; gap: .8rem; margin-top: 1.3rem; }
.footer__social a { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; border: 1px solid var(--border-d); color: var(--muted-d); transition: all .25s var(--ease); }
.footer__social a:hover { color: var(--ink); background: var(--teal); border-color: var(--teal); transform: translateY(-2px); }
.footer__social svg { width: 18px; height: 18px; }
.footer__bottom { margin-top: 2.6rem; padding-top: 1.6rem; border-top: 1px solid var(--border-d); display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; color: var(--muted-d); font-size: .85rem; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); }
.reveal.is-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; }
.reveal[data-d="4"] { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce){ .reveal{ opacity:1; transform:none; transition:none; } }

/* ---------- Scroll progress + cursor ---------- */
.progress { position: fixed; top: 0; left: 0; height: 2px; width: 0; background: linear-gradient(90deg, var(--teal), var(--magenta)); z-index: 200; transition: width .1s linear; }
.cursor, .cursor-dot { position: fixed; top: 0; left: 0; border-radius: 50%; pointer-events: none; z-index: 300; mix-blend-mode: difference; }
.cursor { width: 34px; height: 34px; border: 1px solid #fff; transform: translate(-50%,-50%); transition: width .25s var(--ease), height .25s var(--ease), background .25s; }
.cursor-dot { width: 5px; height: 5px; background: #fff; transform: translate(-50%,-50%); }
.cursor.is-hover { width: 56px; height: 56px; background: rgba(255,255,255,.15); }
@media (hover: none) { .cursor, .cursor-dot { display: none; } }

/* ---------- Page hero (interior pages) ---------- */
.pagehero { position: relative; z-index: 2; padding-top: 140px; padding-bottom: 3rem; }
.pagehero h1 { font-size: clamp(2.4rem, 5.5vw, 4rem); letter-spacing: -.035em; line-height: 1.04; max-width: 18ch; }
.pagehero p { margin-top: 1.2rem; color: var(--muted-d); font-size: 1.2rem; max-width: 56ch; }
.breadcrumb { font-family: var(--font-mono); font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-d); margin-bottom: 1.4rem; }
.breadcrumb a { color: var(--teal); }

/* ---------- Pricing table ---------- */
.ptiers { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.2rem; }
.ptier { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s; }
.ptier:hover { transform: translateY(-5px); box-shadow: var(--shadow-lift); }
.ptier.is-feature { border-color: var(--teal); box-shadow: var(--glow-teal); }
.ptier h3 { font-size: 1.2rem; }
.ptier .amt { font-family: var(--font-mono); font-size: 2rem; margin-top: 1rem; letter-spacing: -.02em; color: var(--ink); }
.ptier .amt small { font-size: .9rem; color: var(--muted); }
.ptier ul { list-style: none; margin-top: 1.4rem; display: flex; flex-direction: column; gap: .65rem; }
.ptier li { display: flex; gap: .55rem; font-size: .92rem; color: var(--muted); }
.ptier li svg { width: 18px; height: 18px; color: var(--success); flex: none; margin-top: 2px; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; }
  .voicecard { max-width: 460px; }
  .cardgrid, .pillars, .bundles, .ptiers { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .bilingual { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav__links { display: none; }
  .cardgrid, .pillars, .bundles, .ptiers, .steps, .stats { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__meta { gap: 1.2rem; }
  .cursor, .cursor-dot { display: none; }
}