/* =========================================================
   STRATA SELECT — Private Creator Management
   Executive dark green · dark grey · paper white · black
   Clash Display (display) + Satoshi (body)
   ========================================================= */

:root {
  /* Restrained system — 5 colours */
  --black:    #000000;
  --bg:       #0B0F0D;   /* near-black grey-green */
  --bg-2:     #0E1311;
  --surface:  #13181A;   /* dark grey */
  --surface-2:#162320;   /* dark green-grey */
  --green-deep: #0A2E20;
  --green:    #14533A;   /* executive dark green */
  --green-accent: #3E9E73; /* restrained brighter green — used sparingly */

  --paper:    #F1EEE4;   /* paper white (text) */
  --text:     #F1EEE4;
  --muted:    #A4ADA5;   /* greenish grey — AA on dark */
  --muted-2:  #808A82;

  --line:     rgba(241, 238, 228, 0.10);
  --line-2:   rgba(241, 238, 228, 0.055);
  --green-line: rgba(62, 158, 115, 0.20);

  --display: 'Clash Display', 'Satoshi', system-ui, sans-serif;
  --body:    'Satoshi', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --wrap: 1200px;
  --pad: clamp(20px, 5vw, 48px);
  --radius: 16px;
  --radius-lg: 22px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --nav-h: 76px;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 17px;
  overflow-x: hidden;
  overscroll-behavior-y: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  -webkit-tap-highlight-color: transparent;   /* no blue flash on iOS taps */
}

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
em { font-style: normal; color: var(--green-accent); }
strong { font-weight: 700; color: var(--paper); }

::selection { background: var(--green-accent); color: #05140d; }

.skip-link {
  position: fixed; top: -100px; left: 16px; z-index: 999;
  background: var(--paper); color: #05140d; padding: 10px 16px;
  border-radius: 10px; font-weight: 700; transition: top .2s var(--ease);
}
.skip-link:focus { top: 16px; }

:focus-visible { outline: 2px solid var(--green-accent); outline-offset: 3px; border-radius: 4px; }

/* ---------- Layout ---------- */
.wrap {
  width: 100%; max-width: var(--wrap); margin-inline: auto;
  padding-left: max(var(--pad), env(safe-area-inset-left));
  padding-right: max(var(--pad), env(safe-area-inset-right));
}
.section { padding-block: clamp(72px, 11vw, 148px); position: relative; }

/* ---------- Texture ---------- */
.grain {
  position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* ---------- Scroll-reactive systems thread (centred; fades in after the hero) ---------- */
.scroll-thread { position: fixed; inset: 0; width: 100vw; height: 100svh; z-index: 35; pointer-events: none; overflow: visible; mix-blend-mode: screen; opacity: 0; transition: opacity .5s var(--ease); }
.scroll-thread.is-active { opacity: .55; }
.scroll-thread path { opacity: .85; }
.scroll-thread circle { filter: drop-shadow(0 0 9px rgba(159,230,194,.95)); transition: opacity .35s var(--ease); }
@media (prefers-reduced-motion: reduce) { .scroll-thread circle { display: none; } }

/* ---------- Shared type ---------- */
h1, h2, h3 { font-family: var(--display); font-weight: 600; line-height: 1.04; letter-spacing: -0.02em; }
h2 { font-size: clamp(2.1rem, 5.4vw, 4rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.55rem); letter-spacing: -0.01em; }
h4 { font-family: var(--body); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 11px; font-family: var(--body);
  font-size: .78rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--muted);
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green-accent); box-shadow: 0 0 12px rgba(62,158,115,.7); }

.kicker {
  display: inline-flex; align-items: center; gap: 12px; font-family: var(--body);
  font-size: .76rem; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; color: var(--green-accent); margin-bottom: 20px;
}
.kicker::before { content: ''; width: 26px; height: 1px; background: var(--green-accent); opacity: .7; }
.lede { font-size: clamp(1.05rem, 1.7vw, 1.3rem); color: var(--muted); max-width: 60ch; }
.muted { color: var(--muted); }
.green { color: var(--paper); }   /* legacy hook */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 13px 24px; border-radius: 100px;
  font-family: var(--body); font-weight: 600; font-size: .96rem; letter-spacing: .01em;
  min-height: 44px;
  transition: transform .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
  white-space: nowrap;
}
.btn svg { transition: transform .25s var(--ease); }
.btn--primary { background: var(--paper); color: #07160F; box-shadow: 0 8px 28px -12px rgba(0,0,0,.7); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 36px -14px rgba(0,0,0,.8); }
.btn--primary:hover svg { transform: translateX(4px); }
.btn--ghost { background: transparent; color: var(--paper); border: 1px solid var(--line); }
.btn--ghost:hover { border-color: var(--green-accent); background: rgba(62,158,115,.08); transform: translateY(-2px); }
.btn--lg { padding: 16px 30px; font-size: 1rem; }
.btn--xl { padding: 19px 38px; font-size: 1.08rem; }

/* ============ NAV ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100; height: var(--nav-h);
  display: flex; align-items: center; padding-top: env(safe-area-inset-top);
  transition: background .3s var(--ease), border-color .3s var(--ease), backdrop-filter .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(11,15,13,.72);
  backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--line);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; width: 100%; }

.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand__mark { display: grid; place-items: center; }
.brand__word { font-family: var(--display); font-weight: 600; font-size: 1.2rem; letter-spacing: .01em; }
.brand__img { height: 40px; width: auto; display: block; }
.footer__brand .brand__img { height: 36px; }

.nav__links { display: flex; gap: 32px; }
.nav__links a { font-family: var(--body); font-size: .92rem; color: var(--muted); font-weight: 500; position: relative; padding: 6px 0; transition: color .2s var(--ease); }
.nav__links a::after { content: ''; position: absolute; left: 0; bottom: 0; width: 100%; height: 1px; background: var(--green-accent); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.nav__links a:hover { color: var(--paper); }
.nav__links a:hover::after { transform: scaleX(1); }

.nav__toggle { display: none; width: 44px; height: 44px; border-radius: 12px; place-items: center; }
.nav__toggle span { display: block; width: 22px; height: 2px; background: var(--paper); border-radius: 2px; transition: transform .3s var(--ease), opacity .3s var(--ease); }
.nav__toggle span + span { margin-top: 6px; }
.nav__toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: calc(var(--nav-h) + env(safe-area-inset-top)) 0 auto 0; z-index: 99;
  background: rgba(11,15,13,.98); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line); padding: 18px var(--pad) 28px; animation: dropIn .35s var(--ease);
}
.mobile-menu[hidden] { display: none; }
.mobile-menu nav { display: flex; flex-direction: column; }
.mobile-menu a { padding: 16px 6px; font-size: 1.15rem; font-family: var(--display); font-weight: 500; border-bottom: 1px solid var(--line-2); min-height: 44px; display: flex; align-items: center; }
.mobile-menu .btn { margin-top: 18px; justify-content: center; border-bottom: none; }
@keyframes dropIn { from { opacity: 0; transform: translateY(-12px); } to { opacity: 1; transform: none; } }

/* ============ HERO ============ */
.hero { position: relative; min-height: 100svh; display: flex; align-items: center; padding-top: var(--nav-h); overflow: hidden; isolation: isolate; }
.hero__bg { position: absolute; inset: 0; z-index: -1; }
.hero__glow {
  position: absolute; top: 46%; left: 66%; width: 70vw; height: 70vw; max-width: 920px; max-height: 920px;
  transform: translate(-50%,-50%);
  background: radial-gradient(circle, rgba(62,158,115,.16), rgba(20,83,58,.12) 40%, transparent 68%);
  filter: blur(16px); animation: breathe 11s ease-in-out infinite;
}
@keyframes breathe { 0%,100% { opacity: .8; transform: translate(-50%,-50%) scale(1);} 50% { opacity: 1; transform: translate(-50%,-50%) scale(1.06);} }
.hero__grid { position: absolute; inset: 0; background: radial-gradient(circle at 66% 48%, transparent 40%, rgba(0,0,0,.5) 100%); }
#core-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero__ghost {
  position: absolute; bottom: -3vw; left: 50%; transform: translateX(-50%);
  font-family: var(--display); font-weight: 700; font-size: 27vw; line-height: 1;
  color: transparent; -webkit-text-stroke: 1px rgba(241,238,228,.05);
  letter-spacing: .02em; pointer-events: none; user-select: none; white-space: nowrap;
}

.hero__content { position: relative; z-index: 2; max-width: 760px; }
.hero__title { font-size: clamp(2.9rem, 9vw, 6.6rem); font-weight: 600; line-height: 1.0; letter-spacing: -0.03em; margin: 22px 0 26px; }
.hero__title span { display: block; }
.hero__sub { font-size: clamp(1.05rem, 1.55vw, 1.28rem); color: var(--muted); max-width: 56ch; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero__meta { display: flex; flex-wrap: wrap; gap: 24px; list-style: none; margin-top: 40px; padding: 0; font-size: .88rem; color: var(--muted); }
.hero__meta li { display: flex; align-items: center; gap: 9px; }
.hero__meta li::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--green-accent); }

.hero__stat {
  position: absolute; right: max(var(--pad), env(safe-area-inset-right)); bottom: clamp(28px, 8vh, 90px); z-index: 2;
  width: min(348px, 80vw); padding: 22px 24px; border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(22,35,32,.85), rgba(12,18,15,.85));
  border: 1px solid var(--line); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 30px 60px -30px rgba(0,0,0,.85);
}
.hero__stat-label { font-family: var(--body); font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.hero__stat-figure { display: flex; align-items: center; gap: 12px; margin: 10px 0 8px; font-family: var(--display); font-weight: 600; font-size: clamp(1.5rem, 4vw, 2rem); letter-spacing: -0.02em; }
.hero__stat-sub { font-size: .8rem; color: var(--muted); line-height: 1.45; }

.hero__scroll { position: absolute; bottom: calc(22px + env(safe-area-inset-bottom)); left: 50%; transform: translateX(-50%); z-index: 2; display: flex; flex-direction: column; align-items: center; gap: 8px; font-family: var(--body); font-size: .68rem; letter-spacing: .22em; text-transform: uppercase; color: var(--muted-2); }
.hero__scroll span { width: 1px; height: 36px; background: linear-gradient(var(--green-accent), transparent); animation: scrollLine 2.2s var(--ease) infinite; }
@keyframes scrollLine { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ============ MARQUEE ============ */
.marquee { border-block: 1px solid var(--line); overflow: hidden; padding: 18px 0; background: var(--black); position: relative; z-index: 2;
  -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent); }
.marquee__track { display: flex; align-items: center; gap: 34px; width: max-content; font-family: var(--display); font-weight: 500; font-size: clamp(1.05rem, 2.3vw, 1.6rem); color: var(--paper); animation: scrollX 40s linear infinite; }
.marquee__track .sep { color: var(--green-accent); }
@keyframes scrollX { to { transform: translateX(-50%); } }

/* ============ STATS ============ */
.stats { padding-block: clamp(56px, 8vw, 92px); }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.stat { background: var(--bg); padding: clamp(28px, 4vw, 44px) clamp(20px, 3vw, 32px); }
.stat__num { font-family: var(--display); font-weight: 600; font-size: clamp(2.5rem, 6vw, 4.2rem); line-height: 1; letter-spacing: -0.03em; color: var(--paper); }
.stat__num .green { color: var(--paper); }
.stat__label { display: block; margin-top: 14px; color: var(--muted); font-size: .93rem; max-width: 22ch; }
.stats__note { text-align: center; margin-top: 22px; font-size: .82rem; color: var(--muted-2); letter-spacing: .01em; max-width: 70ch; margin-inline: auto; }

/* ============ PROBLEM ============ */
.problem__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 6vw, 90px); align-items: end; }
.problem__head h2 { max-width: 12ch; }
.problem__body p { font-size: clamp(1.05rem, 1.5vw, 1.24rem); color: var(--muted); }
.problem__body p + p { margin-top: 18px; }

/* ============ SYSTEM ============ */
.system { background: linear-gradient(180deg, var(--bg), var(--bg-2) 50%, var(--bg)); }
.system__head { max-width: 780px; margin-bottom: clamp(36px, 5vw, 58px); }
.system__head h2 { margin: 0 0 22px; }
.system__viz { position: relative; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line);
  background: radial-gradient(120% 120% at 50% 14%, rgba(62,158,115,.06), transparent 56%), var(--surface);
  margin: 0 0 clamp(34px, 5vw, 56px); aspect-ratio: 16 / 8; }
#system-canvas { width: 100%; height: 100%; }
.system__viz-cap { position: absolute; left: 22px; bottom: 18px; font-family: var(--body); font-size: .8rem; letter-spacing: .04em; color: var(--muted); font-weight: 500; }

.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 22px); }
.pillar { padding: clamp(26px, 3vw, 36px); border-radius: var(--radius-lg); background: var(--surface-2); border: 1px solid var(--line); transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease); transform-style: preserve-3d; }
.pillar:hover { border-color: var(--green-line); box-shadow: 0 30px 60px -36px rgba(0,0,0,.7); }
.pillar__icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 13px; color: var(--green-accent); background: rgba(62,158,115,.1); border: 1px solid var(--green-line); margin-bottom: 22px; }
.pillar h3 { margin-bottom: 12px; }
.pillar p { color: var(--muted); font-size: 1rem; }

/* ============ CASE / RESULTS ============ */
.case { background: var(--black); }
.case__grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(28px, 5vw, 70px); align-items: center; }
.case__figure { display: flex; align-items: center; gap: clamp(10px, 2vw, 20px); flex-wrap: wrap; font-size: clamp(2.4rem, 7.5vw, 5.2rem); margin: 6px 0 8px; line-height: 1; font-family: var(--display); font-weight: 600; }
.case__figure .arrow { color: var(--green-accent); font-family: var(--body); }
.case__figure .muted { color: var(--muted-2); }
.case__cap { font-size: clamp(1.05rem, 2vw, 1.32rem); color: var(--paper); margin-bottom: 22px; }
.case__body { color: var(--muted); max-width: 54ch; font-size: 1.04rem; }
.case__disclaimer { margin-top: 26px; padding: 18px 22px; border-left: 2px solid var(--green-accent); background: rgba(62,158,115,.06); border-radius: 0 12px 12px 0; font-size: .92rem; color: var(--muted); max-width: 56ch; }
.case__disclaimer strong { color: var(--paper); }

.quote { padding: clamp(28px, 3vw, 40px); border-radius: var(--radius-lg); background: var(--surface); border: 1px solid var(--line); position: relative; }
.quote::before { content: '"'; position: absolute; top: 4px; left: 22px; font-family: var(--display); font-size: 6rem; color: rgba(62,158,115,.22); line-height: 1; }
.quote blockquote { font-family: var(--display); font-weight: 500; font-size: clamp(1.2rem, 2vw, 1.5rem); line-height: 1.35; position: relative; }
.quote figcaption { display: flex; align-items: center; gap: 14px; margin-top: 24px; }
.quote__av { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; background: rgba(62,158,115,.12); border: 1px solid var(--green-line); color: var(--green-accent); font-family: var(--display); font-weight: 600; font-size: .9rem; }
.quote figcaption strong { display: block; }
.quote figcaption .muted { font-size: .86rem; }

/* ============ MODEL ============ */
.model__head { margin-bottom: clamp(34px, 5vw, 54px); }
.model__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 22px); }
.card { padding: clamp(28px, 3vw, 38px); border-radius: var(--radius-lg); background: var(--surface); border: 1px solid var(--line); transition: border-color .3s var(--ease), transform .3s var(--ease); }
.card:hover { border-color: var(--green-line); transform: translateY(-4px); }
.card__no { font-family: var(--display); font-size: 1.6rem; color: var(--green-accent); display: block; margin-bottom: 16px; }
.card h3 { margin-bottom: 12px; }
.card p { color: var(--muted); }

/* ============ PROCESS ============ */
.process__head { margin-bottom: clamp(34px, 5vw, 54px); }
.process__steps { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.step { background: var(--bg); padding: clamp(26px, 3vw, 36px); position: relative; }
.step__no { font-family: var(--display); font-weight: 600; font-size: 1.1rem; color: var(--green-accent); display: inline-block; margin-bottom: 30px; }
.step h3 { margin-bottom: 10px; }
.step p { color: var(--muted); font-size: .94rem; }

/* ============ FAQ ============ */
.faq__grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(28px, 5vw, 70px); align-items: start; }
.faq__head { position: sticky; top: calc(var(--nav-h) + 30px); }
.faq__list { display: flex; flex-direction: column; }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__item summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px 4px; font-family: var(--display); font-weight: 500; font-size: clamp(1.1rem, 1.8vw, 1.32rem); cursor: pointer; list-style: none; transition: color .2s var(--ease); min-height: 44px; }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--green-accent); }
.faq__plus { position: relative; flex-shrink: 0; width: 20px; height: 20px; }
.faq__plus::before, .faq__plus::after { content: ''; position: absolute; background: var(--green-accent); transition: transform .3s var(--ease); }
.faq__plus::before { top: 9px; left: 0; width: 20px; height: 2px; }
.faq__plus::after { left: 9px; top: 0; width: 2px; height: 20px; }
.faq__item[open] .faq__plus::after { transform: scaleY(0); }
.faq__item[open] summary { color: var(--green-accent); }
.faq__item p { color: var(--muted); padding: 0 4px 26px; max-width: 62ch; font-size: 1.01rem; }

/* ============ CTA ============ */
.cta { text-align: center; overflow: hidden; }
.cta__inner { position: relative; display: flex; flex-direction: column; align-items: center; padding: clamp(50px, 8vw, 108px) var(--pad); border-radius: clamp(22px, 4vw, 36px);
  background: radial-gradient(120% 130% at 50% 0%, rgba(62,158,115,.1), transparent 55%), var(--surface); border: 1px solid var(--line); }
.cta__glow { position: absolute; top: -40%; left: 50%; transform: translateX(-50%); width: 80%; height: 100%; background: radial-gradient(circle, rgba(62,158,115,.16), transparent 60%); filter: blur(40px); pointer-events: none; }
.cta__title { font-size: clamp(2.4rem, 7vw, 4.8rem); margin: 18px 0 18px; position: relative; }
.cta__sub { color: var(--muted); max-width: 50ch; margin-bottom: 32px; font-size: 1.08rem; }
.cta__alt { margin-top: 20px; font-size: .96rem; color: var(--muted); }
.cta__alt a { color: var(--green-accent); font-weight: 600; border-bottom: 1px solid transparent; transition: border-color .2s var(--ease); }
.cta__alt a:hover { border-bottom-color: var(--green-accent); }
.cta__fine { margin-top: 14px; font-size: .84rem; color: var(--muted-2); letter-spacing: .04em; }

/* ============ FOOTER ============ */
.footer { border-top: 1px solid var(--line); padding-top: clamp(56px, 7vw, 88px); position: relative; overflow: hidden; }
.footer__top { display: grid; grid-template-columns: 1.4fr 1.6fr; gap: clamp(30px, 5vw, 70px); padding-bottom: 50px; }
.footer__brand p { color: var(--muted); max-width: 40ch; margin-top: 18px; font-size: .96rem; }
.footer__nav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 480px; }
.footer__nav h4 { font-family: var(--body); font-weight: 700; font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 16px; }
.footer__nav a { display: block; color: var(--muted); padding: 7px 0; font-size: .95rem; transition: color .2s var(--ease); }
.footer__nav a:hover { color: var(--paper); }
.footer__ghost { font-family: var(--display); font-weight: 700; font-size: clamp(3rem, 16vw, 14rem); line-height: .9; text-align: center; color: transparent; -webkit-text-stroke: 1px rgba(241,238,228,.06); letter-spacing: .01em; user-select: none; pointer-events: none; margin-bottom: -1.5vw; white-space: nowrap; overflow: hidden; }
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding: 26px 0 calc(26px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); font-size: .82rem; color: var(--muted); }

/* ============ REVEAL (restrained, GPU-cheap = smooth on iPhone) ============ */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .8s var(--ease), transform .8s var(--ease); will-change: opacity, transform; }
.reveal.is-in { opacity: 1; transform: none; will-change: auto; }
.reveal[data-delay="1"] { transition-delay: .07s; }
.reveal[data-delay="2"] { transition-delay: .14s; }
.reveal[data-delay="3"] { transition-delay: .21s; }
.reveal[data-delay="4"] { transition-delay: .28s; }

/* ============ RESPONSIVE — mobile is *designed*, not shrunk ============ */
@media (max-width: 980px) {
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: grid; }
  .pillars, .model__grid { grid-template-columns: 1fr; }
  .problem__grid, .case__grid, .faq__grid, .footer__top { grid-template-columns: 1fr; }
  .footer__top { gap: 40px; }
  .faq__head { position: static; }
  .case__grid { gap: 36px; }
  .hero { min-height: auto; display: block; padding-block: calc(var(--nav-h) + 36px) 64px; }
  .hero__content { max-width: none; }
  .hero__stat { position: static; width: auto; margin: 34px 0 0; }
  .hero__scroll { display: none; }
  #core-canvas { opacity: .6; }   /* recede the globe behind text on phones for legibility */
  .system__viz { aspect-ratio: 1 / 1; }
}

@media (max-width: 680px) {
  /* phone-specific layout decisions */
  .stats__grid { grid-template-columns: repeat(2, 1fr); }       /* 2×2, not a tall column */
  .process__steps { grid-template-columns: 1fr; }                /* vertical timeline */
  .step { padding-left: 54px; }
  .step::before { content: ''; position: absolute; left: 26px; top: 30px; bottom: -1px; width: 1px; background: var(--green-line); }
  .step:last-child::before { display: none; }
  .step__no { position: absolute; left: 16px; top: 28px; margin: 0; width: 22px; text-align: center; }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  .footer__nav { grid-template-columns: 1fr 1fr; }
  .hero__meta { gap: 12px 20px; }
  .hero__title { font-size: clamp(2.7rem, 13vw, 3.6rem); }
  .btn--lg, .btn--xl { width: 100%; justify-content: center; }
  .hero__cta { width: 100%; }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
  .marquee__track { animation: none; }
  .hero__glow, .hero__scroll span { animation: none; }
}