/* ============================================================
   BYKES Foundation — Blueprint aesthetic
   Palette: deep navy, cyan linework, warm off-white
   ============================================================ */

:root{
  --navy: #0B1A2F;
  --navy-2: #0e2038;
  --navy-3: #142a48;
  --cyan: #4FD1E8;
  --cyan-2: #7be3f2;
  --ink: #E9EEF5;
  --ink-dim: #9FB0C6;
  --grid: rgba(79, 209, 232, 0.10);
  --grid-strong: rgba(79, 209, 232, 0.18);
  --rule: rgba(233, 238, 245, 0.14);
  --paper: #F4F1EA;
  --paper-ink: #0B1A2F;

  --font-display: "Work Sans", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --font-serif: "Fraunces", "Iowan Old Style", Georgia, serif;

  --step--1: clamp(.82rem, .78rem + .2vw, .92rem);
  --step-0:  clamp(1rem, .95rem + .3vw, 1.12rem);
  --step-1:  clamp(1.12rem, 1.02rem + .5vw, 1.32rem);
  --step-2:  clamp(1.4rem, 1.2rem + 1vw, 1.85rem);
  --step-3:  clamp(1.85rem, 1.4rem + 2.2vw, 2.6rem);
  --step-4:  clamp(2.4rem, 1.6rem + 3.8vw, 4.2rem);
  --step-hero: clamp(2.8rem, 1.7rem + 5.2vw, 5.6rem);

  --maxw: 1240px;
  --pad: clamp(1.25rem, 3vw, 2.5rem);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-display);
  font-size: var(--step-0);
  line-height: 1.55;
  color: var(--ink);
  background: var(--navy);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    radial-gradient(1200px 700px at 82% -10%, rgba(79,209,232,.10), transparent 70%),
    radial-gradient(900px 600px at -10% 90%, rgba(79,209,232,.06), transparent 70%);
  background-size: 40px 40px, 40px 40px, 100% 100%, 100% 100%;
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}

img, svg { display:block; max-width:100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

/* ---------- Reveal on scroll (opt-in when JS runs) ---------- */
.js .section, .js .hero, .js .strip{
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .8s ease, transform .8s ease;
}
.js .section.is-in, .js .hero.is-in, .js .strip.is-in{
  opacity: 1; transform: none;
}
@media (prefers-reduced-motion: reduce){
  .js .section, .js .hero, .js .strip { opacity:1; transform:none; transition:none; }
}

/* ---------- Nav ---------- */
.nav{
  position: sticky; top: 0; z-index: 30;
  display:flex; align-items:center; justify-content:space-between;
  gap:1rem;
  padding: .9rem var(--pad);
  background: rgba(11, 26, 47, .78);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
.nav__brand{
  display:flex; align-items:center; gap:.7rem;
  color: var(--cyan);
}
.nav__logo{ width: 34px; height: 34px; }
.nav__wordmark{
  color: var(--ink);
  font-weight: 700; letter-spacing: .18em;
  text-transform: uppercase;
  font-size: .82rem;
}
.nav__wordmark em{
  font-style: normal;
  color: var(--ink-dim);
  font-weight: 500;
  margin-left: .3rem;
}
.nav__links{
  display:flex; align-items:center; gap: 1.4rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.nav__links a{ color: var(--ink-dim); transition: color .2s; }
.nav__links a:hover{ color: var(--ink); }
.nav__cta{
  padding: .55rem .9rem;
  border: 1px solid var(--cyan);
  color: var(--cyan) !important;
  border-radius: 999px;
  transition: background .2s, color .2s;
}
.nav__cta:hover{ background: var(--cyan); color: var(--navy) !important; }
@media (max-width: 760px){
  .nav__links a:not(.nav__cta){ display:none; }
  .nav__cta{ padding: .45rem .75rem; font-size: .72rem; white-space: nowrap; }
  .nav__wordmark{ font-size: .74rem; letter-spacing: .14em; }
  .nav__wordmark em{ display:none; }
}

/* ---------- Shared type ---------- */
.eyebrow{
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
  display:inline-flex; align-items:center; gap:.55rem;
  margin: 0 0 1.1rem;
}
.dot{
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(79, 209, 232, .18);
}
h1, h2, h3{ font-family: var(--font-display); letter-spacing: -.01em; line-height: 1.05; margin: 0; }
h1{ font-size: var(--step-hero); font-weight: 700; }
h2{ font-size: var(--step-4); font-weight: 700; }
h3{ font-size: var(--step-1); font-weight: 600; }
p{ margin: 0 0 1rem; }
strong{ color: var(--ink); }

.hero__accent{
  color: var(--cyan);
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -.015em;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:.5rem;
  padding: .85rem 1.3rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  transition: transform .15s, background .2s, color .2s, border-color .2s;
}
.btn--primary{
  background: var(--cyan);
  color: var(--navy);
  border: 1px solid var(--cyan);
}
.btn--primary:hover{ background: var(--cyan-2); border-color: var(--cyan-2); transform: translateY(-1px); }
.btn--ghost{
  color: var(--ink);
  border: 1px solid var(--rule);
}
.btn--ghost:hover{ border-color: var(--cyan); color: var(--cyan); }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  padding: clamp(2.5rem, 5vw, 5rem) var(--pad) clamp(2.5rem, 5vw, 4rem);
  max-width: var(--maxw);
  margin: 0 auto;
}
.hero__grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}
@media (min-width: 960px){
  .hero__grid{ grid-template-columns: 1.05fr 1fr; }
}
.hero__copy .lede{
  color: var(--ink-dim);
  font-size: var(--step-1);
  max-width: 48ch;
  margin-top: 1.3rem;
}
.hero__ctas{ display:flex; flex-wrap:wrap; gap:.75rem; margin-top: 1.6rem; }
.hero__meta{
  list-style:none; padding:0;
  display:grid; grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 1rem;
  margin: 2.5rem 0 0;
  border-top: 1px solid var(--rule);
  padding-top: 1.3rem;
}
.hero__meta li{ display:flex; flex-direction:column; gap:.25rem; }
.hero__meta strong{
  font-family: var(--font-display);
  font-size: var(--step-3);
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
  letter-spacing: -.02em;
}
.hero__meta span{
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .68rem;
  color: var(--ink-dim);
}

/* Blueprint figure */
.hero__figure{
  margin: 0;
  padding: clamp(1rem, 2.5vw, 1.8rem);
  border: 1px solid var(--grid-strong);
  background:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    var(--navy-2);
  background-size: 20px 20px;
  border-radius: 6px;
  color: var(--ink);
  position: relative;
}
.hero__figure::before,
.hero__figure::after{
  content:''; position:absolute; width:14px; height:14px; border: 1px solid var(--cyan); opacity:.55;
}
.hero__figure::before{ top:8px; left:8px; border-right:0; border-bottom:0; }
.hero__figure::after{ bottom:8px; right:8px; border-left:0; border-top:0; }

.blueprint{ width:100%; height:auto; color: var(--ink); }
.blueprint .cx-label{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  fill: var(--cyan);
}
.blueprint .cx-sub{
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .06em;
  fill: var(--ink-dim);
}
.fig-caption{
  display:flex; justify-content:space-between;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-top: .9rem;
  padding-top: .7rem;
  border-top: 1px dashed var(--rule);
}

/* ============================================================
   STRIP
   ============================================================ */
.strip{
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background:
    linear-gradient(90deg, rgba(79,209,232,.06), transparent 30%, transparent 70%, rgba(79,209,232,.06));
  padding: 1.4rem var(--pad);
  text-align: center;
}
.strip p{
  max-width: 900px; margin: 0 auto;
  font-family: var(--font-serif);
  font-size: var(--step-1);
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -.005em;
}
.strip__kicker{
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-right: .75rem;
  padding: .1rem .5rem;
  border: 1px solid var(--cyan);
  border-radius: 2px;
  vertical-align: middle;
}

/* ============================================================
   SECTION shell
   ============================================================ */
.section{
  padding: clamp(3.5rem, 7vw, 6rem) var(--pad);
  max-width: var(--maxw);
  margin: 0 auto;
}
.section--dark{
  max-width: none;
  background: var(--navy-2);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.section--dark > *{ max-width: var(--maxw); margin-left:auto; margin-right:auto; }
.section__head{ max-width: 780px; margin-bottom: clamp(2rem, 4vw, 3.5rem); }
.section__lede{
  color: var(--ink-dim);
  font-size: var(--step-1);
  margin-top: 1.1rem;
  max-width: 62ch;
}

/* ============================================================
   PILLARS
   ============================================================ */
.pillars{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 6px;
  overflow: hidden;
}
@media (min-width: 900px){
  .pillars{ grid-template-columns: repeat(3, 1fr); }
}
.pillar{
  background: var(--navy-2);
  padding: 1.8rem 1.6rem;
  position: relative;
  min-height: 240px;
  transition: background .2s;
}
.pillar:hover{ background: var(--navy-3); }
.pillar__num{
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--cyan);
  margin-bottom: 1rem;
  padding-bottom: .6rem;
  border-bottom: 1px dashed var(--rule);
}
.pillar h3{ margin-bottom: .6rem; }
.pillar p{ color: var(--ink-dim); margin: 0; font-size: var(--step-0); }
.pillar em{ color: var(--cyan); font-style: normal; }
@media (min-width: 900px){
  .pillar--wide{ grid-column: 2 / span 2; }
}
@media (max-width: 560px){
  .pillars{ grid-template-columns: 1fr; }
}

/* ============================================================
   PROGRAM (mechanics)
   ============================================================ */
.mechanics{
  display:grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  position: relative;
}
@media (min-width: 860px){
  .mechanics{ grid-template-columns: repeat(3, 1fr); }
  .mechanics::before{
    content:''; position:absolute; top: 78px; left: 16%; right: 16%;
    height: 1px; background: repeating-linear-gradient(90deg, var(--cyan) 0 6px, transparent 6px 14px);
    opacity: .35;
    z-index: 0;
    pointer-events: none;
  }
}
.stage{
  background: var(--navy);
  border: 1px solid var(--grid-strong);
  padding: 1.8rem 1.6rem;
  border-radius: 6px;
  position: relative;
  color: var(--ink);
}
.stage__icon{
  width: 96px; height: 96px;
  color: var(--cyan);
  margin: -.4rem 0 1rem -.4rem;
  background: var(--navy-2);
  border-radius: 6px;
  padding: .4rem;
  border: 1px dashed var(--rule);
  position: relative; z-index: 1;
}
.stage__meta{
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .2em;
  color: var(--cyan);
  margin-bottom: .6rem;
}
.stage h3{ margin-bottom: .6rem; }
.stage h3 span{ color: var(--ink-dim); font-weight: 500; font-size: var(--step-0); }
.stage p{ color: var(--ink-dim); margin: 0; }

/* ============================================================
   GAUGES
   ============================================================ */
.gauges{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
}
@media (min-width: 780px){
  .gauges{ grid-template-columns: repeat(4, 1fr); }
}
.gauge{
  margin: 0;
  padding: 1.2rem 1rem 1.4rem;
  background: var(--navy-2);
  border: 1px solid var(--grid-strong);
  border-radius: 6px;
  color: var(--ink);
  text-align: center;
}
.gauge svg{ width: 100%; height: auto; max-height: 130px; margin: 0 auto .5rem; }
.gauge figcaption{ display:flex; flex-direction:column; gap:.25rem; }
.gauge strong{
  font-family: var(--font-display);
  font-size: var(--step-2);
  color: var(--cyan);
  font-weight: 700;
  letter-spacing: -.01em;
}
.gauge span{
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

/* ============================================================
   CHAPTER MODEL (35-mile Human Infrastructure Map)
   ============================================================ */
.chapter{
  display:grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
}
@media (min-width: 980px){
  .chapter{ grid-template-columns: 1.05fr .95fr; }
}
.chapter__map{
  margin: 0;
  padding: 1rem;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    var(--navy);
  background-size: 20px 20px;
  border: 1px solid var(--grid-strong);
  border-radius: 6px;
  color: var(--ink);
  position: relative;
}
.chapter__map svg{ width: 100%; height: auto; }
.chapter__map .cx-label{
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  fill: var(--cyan);
}
.chapter__map .cx-sub{
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .08em;
  fill: var(--ink-dim);
}
.chapter__legend{
  display:flex; flex-direction:column; gap: 1rem;
}
.anchor{
  padding: 1.4rem 1.5rem;
  background: var(--navy-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  transition: border-color .2s, transform .2s;
}
.anchor:hover{ border-color: var(--cyan); transform: translateY(-2px); }
.anchor header{
  display:flex; align-items:center; gap: .85rem;
  padding-bottom: .7rem;
  border-bottom: 1px dashed var(--rule);
  margin-bottom: .8rem;
}
.anchor__num{
  display:inline-flex; align-items:center; justify-content:center;
  width: 34px; height: 34px;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-weight: 600;
  border-radius: 4px;
}
.anchor h3{ margin: 0; font-size: var(--step-1); }
.anchor p{ color: var(--ink-dim); margin: 0 0 .8rem; font-size: var(--step-0); }
.anchor__ex{
  list-style:none; padding:0; margin: 0;
  display:grid; grid-template-columns: 1fr 1fr;
  gap: .3rem .9rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--ink-dim);
}
.anchor__ex li{ position: relative; padding-left: .8rem; }
.anchor__ex li::before{
  content: "·"; color: var(--cyan);
  position:absolute; left: 0; top: -.05em;
}
@media (max-width: 520px){ .anchor__ex{ grid-template-columns: 1fr; } }

/* ============================================================
   TARGET UNIVERSE
   ============================================================ */
.universe{
  display:grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}
@media (min-width: 720px){
  .universe{ grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1080px){
  .universe{ grid-template-columns: repeat(3, 1fr); }
}
.uni-card{
  padding: 1.4rem 1.5rem 1.5rem;
  background: var(--navy-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  display:flex; flex-direction:column; gap: .9rem;
  transition: border-color .2s, transform .2s;
}
.uni-card:hover{ border-color: var(--cyan); transform: translateY(-2px); }
.uni-card__head{ display:flex; flex-direction:column; gap: .5rem; }
.uni-tag{
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
  padding: .25rem .55rem;
  border: 1px solid var(--cyan);
  border-radius: 3px;
}
.uni-card h3{ margin: 0; font-size: var(--step-1); }
.uni-list{
  list-style:none; padding:0; margin: 0;
  display:flex; flex-direction:column;
  border-top: 1px solid var(--rule);
}
.uni-list li{
  padding: .55rem 0;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
  font-size: .95rem;
}
.uni-foot{
  color: var(--ink-dim);
  font-size: .85rem;
  margin: 0;
  padding-top: .3rem;
}
.uni-note{
  margin: clamp(1.6rem, 3vw, 2.4rem) auto 0;
  max-width: 780px;
  padding: .9rem 1rem;
  border-left: 2px solid var(--cyan);
  background: rgba(79,209,232,.04);
  color: var(--ink-dim);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .03em;
  line-height: 1.7;
}

/* ============================================================
   HUBS
   ============================================================ */
.hubs{
  display:grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}
@media (min-width: 780px){
  .hubs{ grid-template-columns: repeat(3, 1fr); }
}
.hub{
  padding: 1.5rem 1.6rem;
  background: var(--navy-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  display:flex; flex-direction:column; gap: .7rem;
  transition: border-color .2s, transform .2s;
}
.hub:hover{ border-color: var(--cyan); transform: translateY(-2px); }
.hub__meta{
  display:flex; justify-content:space-between; align-items:center; gap: 1rem;
  padding-bottom: .7rem;
  border-bottom: 1px dashed var(--rule);
}
.hub__flag{
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--cyan);
  padding: .2rem .5rem;
  border: 1px solid var(--cyan);
  border-radius: 3px;
}
.hub__coord{
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--ink-dim);
}
.hub h3{ margin: 0; font-size: var(--step-2); }
.hub__role{
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .04em;
  margin: 0 0 .4rem;
}
.hub__notes{
  list-style:none; padding:0; margin: 0;
  display:flex; flex-direction:column; gap: .55rem;
  color: var(--ink-dim);
  font-size: .92rem;
}
.hub__notes li{ position: relative; padding-left: 1.1rem; }
.hub__notes li::before{
  content: "→";
  position:absolute; left: 0; top: 0;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: .82rem;
}
.hub__notes em{ color: var(--ink); font-style: italic; }
.hub--expansion{ border-style: dashed; }
.hub--expansion h3{ color: var(--ink-dim); }

/* ============================================================
   CONTACT
   ============================================================ */
.section--contact{ padding-top: clamp(3.5rem, 6vw, 5.5rem); padding-bottom: clamp(3.5rem, 6vw, 5.5rem); }
.contact{
  display:grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
}
@media (min-width: 900px){
  .contact{ grid-template-columns: 1.1fr 1fr; }
}
.contact .lede{
  color: var(--ink-dim);
  font-size: var(--step-1);
  margin-top: 1.2rem;
  max-width: 52ch;
}
.contact__form{
  display:grid; gap: .9rem;
  background: var(--navy);
  padding: 1.6rem;
  border: 1px solid var(--grid-strong);
  border-radius: 6px;
}
.contact__form label{
  display:flex; flex-direction: column; gap: .35rem;
}
.contact__form span{
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.contact__form input,
.contact__form select{
  background: var(--navy-2);
  border: 1px solid var(--rule);
  color: var(--ink);
  padding: .75rem .8rem;
  border-radius: 4px;
  font: inherit;
  transition: border-color .2s, background .2s;
}
.contact__form input:focus,
.contact__form select:focus{
  outline: none;
  border-color: var(--cyan);
  background: var(--navy-3);
}
.contact__form .thanks{
  margin: 0;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: .82rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.foot{
  padding: clamp(2.2rem, 4vw, 3.2rem) var(--pad);
  border-top: 1px solid var(--rule);
  background: #061323;
  display:grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 820px){
  .foot{ grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}
.foot__col{ display:flex; flex-direction:column; gap:.55rem; color: var(--ink-dim); font-size: .9rem; }
.foot__col a{ color: var(--ink-dim); transition: color .15s; }
.foot__col a:hover{ color: var(--cyan); }
.foot__lbl{
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 .3rem;
}
.foot__tag{
  color: var(--ink-dim);
  margin: .3rem 0 0;
  font-size: .88rem;
  max-width: 32ch;
}
.foot__note{
  color: var(--ink-dim);
  font-size: .82rem;
  margin-top: .4rem;
}
.foot__note em{ color: var(--cyan); font-style: italic; }
.foot__col--meta{ font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em; color: var(--ink-dim); }
.foot__col--meta span{ display:block; padding: .15rem 0; }

/* ============================================================
   LEXICON (Rider / Team / Stage / Peloton vocabulary card)
   ============================================================ */
.lexicon{
  margin: clamp(1.4rem, 3vw, 2rem) 0 0;
  padding: 1.1rem 1.3rem 1.2rem;
  border: 1px solid var(--rule);
  border-left: 2px solid var(--cyan);
  background: rgba(79,209,232,.03);
  border-radius: 4px;
  max-width: 780px;
}
.lexicon__kicker{
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 .7rem;
}
.lexicon dl{
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: .55rem 1.4rem;
}
@media (min-width: 720px){
  .lexicon dl{ grid-template-columns: 1fr 1fr; }
}
.lexicon dl > div{
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: .8rem;
  align-items: baseline;
  padding: .3rem 0;
  border-bottom: 1px dashed var(--rule);
}
.lexicon dl > div:last-child,
.lexicon dl > div:nth-last-child(2):nth-child(odd){ border-bottom: 0; }
.lexicon dt{
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--cyan);
  font-size: .95rem;
  letter-spacing: .02em;
}
.lexicon dd{
  margin: 0;
  color: var(--ink-dim);
  font-size: .88rem;
  line-height: 1.5;
}

/* ============================================================
   BYKES acronym + flipped Y (trademark treatment)
   ============================================================ */
.flip-y{
  display: inline-block;
  transform: scaleX(-1);
  color: var(--cyan);
  /* nudge to compensate for the mirror's optical shift */
  transform-origin: 50% 50%;
}

.acronym{
  margin: 1.1rem 0 0;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: .6rem .8rem;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .06em;
  color: var(--ink-dim);
}
.acronym__mark{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: .04em;
  color: var(--ink);
}
.acronym__sep{ color: var(--cyan); opacity: .7; }
.acronym__expand{
  color: var(--ink-dim);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .78rem;
}
.acronym__expand b{
  color: var(--cyan);
  font-weight: 700;
}

.foot__acronym{
  margin: .35rem 0 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.foot__acronym b{ color: var(--cyan); font-weight: 700; }

/* ============================================================
   Global additions — sticky-nav scroll margin + reduced motion
   ============================================================ */
:where(section[id]){ scroll-margin-top: 80px; }

/* L-shaped tick corner-tick on hover for card-like surfaces */
.pillar, .uni-card, .hub, .anchor, .stage, .tier, .role{ position: relative; }
.pillar::after, .uni-card::after, .hub::after, .anchor::after, .stage::after, .tier::after, .role::after{
  content: ""; position: absolute; top: 8px; right: 8px;
  width: 10px; height: 10px;
  border-top: 1.5px solid var(--cyan);
  border-right: 1.5px solid var(--cyan);
  opacity: 0; transition: opacity .18s ease-out, transform .18s ease-out;
  transform: translate(-4px, 4px);
  pointer-events: none;
}
.pillar:hover::after, .uni-card:hover::after, .hub:hover::after,
.anchor:hover::after, .stage:hover::after, .tier:hover::after,
.role:hover::after, .role:focus-visible::after{
  opacity: .9; transform: translate(0,0);
}

/* ============================================================
   ABOUT / FOUNDER STORY
   ============================================================ */
.section--about{ padding-top: clamp(2.5rem, 5vw, 4rem); padding-bottom: clamp(2.5rem, 5vw, 4rem); }
.about{
  display:grid; grid-template-columns: 1fr; gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
}
@media (min-width: 900px){
  .about{ grid-template-columns: .8fr 1.2fr; }
}
.about__mark{
  margin:0; padding: 1.4rem;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    var(--navy-2);
  background-size: 20px 20px;
  border: 1px solid var(--grid-strong);
  border-radius: 6px;
  position: relative;
}
.about__mark-inner{
  position: relative;
  min-height: 260px;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  padding: 2rem 1rem 1.5rem;
}
.about__ticks span{
  position:absolute; width:14px; height:14px; border: 1px solid var(--cyan); opacity:.6;
}
.about__ticks span:nth-child(1){ top:8px; left:8px; border-right:0; border-bottom:0; }
.about__ticks span:nth-child(2){ top:8px; right:8px; border-left:0; border-bottom:0; }
.about__ticks span:nth-child(3){ bottom:8px; left:8px; border-right:0; border-top:0; }
.about__ticks span:nth-child(4){ bottom:8px; right:8px; border-left:0; border-top:0; }
.about__initials{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(4rem, 10vw, 7.5rem);
  color: var(--ink);
  line-height: 1;
  letter-spacing: .04em;
}
.about__initials .flip-y{ color: var(--cyan); }
.about__mark-meta{
  margin-top: 1.4rem;
  padding-top: .9rem;
  border-top: 1px dashed var(--rule);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--ink-dim);
  text-align: center;
  line-height: 1.6;
  width: 100%;
}
.about__mark-meta div:first-child{ color: var(--cyan); }
.about__body h2{ margin-bottom: 1.2rem; }
.about__quote{
  margin: 1.4rem 0 0;
  padding: 1.2rem 1.4rem;
  border-left: 2px solid var(--cyan);
  background: rgba(79,209,232,.04);
  border-radius: 4px;
}
.about__quote p{
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--step-1);
  color: var(--ink);
  margin: 0 0 .8rem;
  line-height: 1.5;
}
.about__quote cite{
  font-family: var(--font-mono);
  font-style: normal;
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan);
}
.arc{
  list-style:none; padding:0; margin: 1.8rem 0 0;
  display:grid; grid-template-columns: 1fr; gap: .8rem;
  position: relative;
}
@media (min-width: 720px){
  .arc{ grid-template-columns: repeat(4, 1fr); gap: .6rem; }
  .arc::before{
    content:''; position:absolute; top: 22px; left: 8%; right: 8%;
    height: 1px;
    background: repeating-linear-gradient(90deg, var(--cyan) 0 6px, transparent 6px 12px);
    opacity: .5; z-index: 0;
  }
}
.arc__step{
  background: var(--navy-2);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: .9rem .95rem;
  position: relative; z-index: 1;
}
.arc__yr{
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .16em;
  color: var(--cyan);
  margin-bottom: .35rem;
}
.arc__t{
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
  font-size: .98rem;
  margin-bottom: .25rem;
}
.arc__d{
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--ink-dim);
  line-height: 1.5;
  letter-spacing: .02em;
}
.about__callout{
  margin-top: 1.6rem;
  padding: .9rem 1.1rem;
  border: 1px dashed var(--cyan);
  border-radius: 4px;
  display:flex; align-items:center; gap: .9rem; flex-wrap:wrap;
  background: rgba(79,209,232,.03);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .04em;
}
.about__callout-kicker{
  font-size: .68rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--cyan);
  padding: .2rem .55rem; border: 1px solid var(--cyan); border-radius: 3px;
}
.about__callout em{ color: var(--cyan); font-style: italic; }

/* ============================================================
   CHAPTER MAP (US) additions
   ============================================================ */
.chapter{ align-items: start; }
.chapter__left{ display:flex; flex-direction:column; gap: 1rem; }
.chapter__map--us{ padding: 0.6rem 0.6rem 0.9rem; }
.chapter__map--us svg{ width: 100%; height: auto; }
.chapter__note{
  margin: .3rem 0 0;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.anchor-pt{ cursor: pointer; outline: none; }
.anchor-pt .pt-range{ opacity: 0; transition: opacity .25s; }
.anchor-pt .pt-ring{ opacity: .55; transition: opacity .2s, stroke-width .2s; }
.anchor-pt:hover .pt-ring{ opacity: .9; stroke-width: 1.4; }
.anchor-pt:focus-visible .pt-dot{ stroke: var(--ink); stroke-width: 2; }
.anchor-pt.is-active .pt-range{ opacity: 1; }
.anchor-pt.is-active .pt-ring{ opacity: 1; stroke-width: 1.6; }
.anchor-pt.is-active .pt-dot{ r: 6; }
@media (prefers-reduced-motion: no-preference){
  .anchor-pt .pt-ring{
    transform-box: fill-box; transform-origin: center;
    animation: pulsering 2.4s ease-in-out infinite;
  }
}
@keyframes pulsering{
  0%,100%{ transform: scale(1); opacity: .55; }
  50%{ transform: scale(1.25); opacity: .15; }
}
.anchor-pt.is-active .pt-ring{ animation-duration: 1.6s; }

/* Chapter card (live) */
.chapter__card{
  padding: 1.2rem 1.3rem;
  background: var(--navy-2);
  border: 1px solid var(--grid-strong);
  border-radius: 6px;
  display:flex; flex-direction:column; gap: .5rem;
}
.chapter__card .cc__head{
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--cyan);
  padding-bottom: .5rem;
  border-bottom: 1px dashed var(--rule);
  margin-bottom: .3rem;
}
.chapter__card .cc__site{
  font-weight: 700; color: var(--ink);
  font-size: var(--step-1);
  line-height: 1.25;
}
.chapter__card .cc__city{
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--ink-dim);
  letter-spacing: .04em;
}
.chapter__card .cc__grid{
  display:grid; grid-template-columns: 1fr; gap: .8rem;
  margin-top: .6rem;
  padding-top: .8rem;
  border-top: 1px dashed var(--rule);
}
@media (min-width: 620px){
  .chapter__card .cc__grid{ grid-template-columns: repeat(3, 1fr); }
}
.chapter__card .cc__lbl{
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  color: var(--cyan);
  margin-bottom: .35rem;
}
.chapter__card .cc__col ul{
  list-style: none; padding:0; margin:0;
  display:flex; flex-direction:column; gap: .25rem;
  color: var(--ink); font-size: .82rem;
}
.chapter__card .cc__col li{ position:relative; padding-left: .8rem; color: var(--ink-dim); }
.chapter__card .cc__col li::before{
  content: "·"; color: var(--cyan);
  position:absolute; left:0; top:-.1em; font-weight:700;
}

/* ============================================================
   SPONSOR LADDER
   ============================================================ */
.ladder{
  list-style: none; padding: 0; margin: 0;
  position: relative;
  display:grid; grid-template-columns: 1fr; gap: 1rem;
}
.ladder::before{
  content:''; position: absolute; left: 12px; top: 12px; bottom: 12px; width: 2px;
  background: repeating-linear-gradient(180deg, var(--cyan) 0 6px, transparent 6px 12px);
  opacity: .55;
}
@media (min-width: 720px){
  .ladder::before{ left: 26px; }
}
.tier{
  background: var(--navy-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1.2rem 1.3rem 1.2rem 3rem;
  transition: border-color .2s, transform .2s;
}
@media (min-width: 720px){
  .tier{ padding-left: 7.5rem; }
}
.tier:hover{ border-color: var(--cyan); transform: translateY(-1px); }
.tier__num{
  position: absolute;
  left: 0; margin-top: .1rem;
  transform: translateX(0);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--cyan);
  padding: .3rem .5rem;
  border: 1px solid var(--cyan);
  border-radius: 3px;
  background: var(--navy);
}
.tier{ position: relative; }
.tier__num{ left: 1.1rem; top: 1.25rem; }
@media (min-width: 720px){ .tier__num{ left: 1.5rem; top: 1.35rem; } }
@media (max-width: 719px){
  .tier{ padding-top: 3.2rem; }
  .tier__num{ top: 1rem; }
}
.tier__name{
  margin: 0 0 .5rem;
  font-size: var(--step-1);
  color: var(--ink);
}
.tier__c, .tier__b{
  margin: .3rem 0 0;
  font-size: .92rem;
  color: var(--ink-dim);
  line-height: 1.55;
}
.tier__c span, .tier__b span{
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-right: .4rem;
}

/* ============================================================
   ROLE TILES / GET INVOLVED
   ============================================================ */
.roles{
  display:grid; grid-template-columns: 1fr; gap: .9rem;
  margin-bottom: 2rem;
}
@media (min-width: 640px){ .roles{ grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px){ .roles{ grid-template-columns: repeat(5, 1fr); } }
.role{
  text-align: left;
  background: var(--navy-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1rem 1.1rem 1.1rem;
  display:flex; flex-direction: column; gap: .45rem;
  cursor: pointer;
  color: var(--ink);
  transition: border-color .2s, transform .2s, background .2s;
}
.role:hover, .role:focus-visible{
  border-color: var(--cyan);
  transform: translateY(-2px);
  outline: none;
  background: var(--navy-3);
}
.role.is-active{
  border-color: var(--cyan);
  background: rgba(79,209,232,.06);
}
.role__tag{
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  color: var(--cyan);
}
.role__t{
  font-weight: 600;
  color: var(--ink);
  font-size: .98rem;
  line-height: 1.25;
}
.role__d{
  color: var(--ink-dim);
  font-size: .84rem;
  line-height: 1.5;
}

/* textarea for get-involved form */
.contact__form textarea{
  background: var(--navy-2);
  border: 1px solid var(--rule);
  color: var(--ink);
  padding: .75rem .8rem;
  border-radius: 4px;
  font: inherit;
  min-height: 80px;
  resize: vertical;
  transition: border-color .2s, background .2s;
}
.contact__form textarea:focus{ outline:none; border-color: var(--cyan); background: var(--navy-3); }
.section--contact .contact{ grid-template-columns: 1fr; }
@media (min-width: 900px){
  .section--contact .contact{ grid-template-columns: 1fr; }
}
.section--contact .contact__form{ max-width: 640px; margin: 0 auto; width: 100%; }

/* ============================================================
   Hero drivetrain stroke-in
   ============================================================ */
@media (prefers-reduced-motion: no-preference){
  .hero .blueprint circle,
  .hero .blueprint line,
  .hero .blueprint path{
    stroke-dasharray: 600;
    stroke-dashoffset: 600;
    transition: stroke-dashoffset 1.6s ease-out;
  }
  .hero.is-in .blueprint circle,
  .hero.is-in .blueprint line,
  .hero.is-in .blueprint path{
    stroke-dashoffset: 0;
  }
  /* dashed lines: keep as-is */
  .hero .blueprint [stroke-dasharray]{
    stroke-dasharray: initial !important;
    stroke-dashoffset: 0 !important;
    transition: none;
  }
}
@media (prefers-reduced-motion: reduce){
  .anchor-pt .pt-ring{ animation: none; }
}