/* ================================================================
   Core Alpha AI — core-alpha.ai
   Brand: Mesh A · Ink #0B1220 · Paper #FAFBFC · Emerald #10D9A0
   Zero dependencies. Geist + Geist Mono via Google Fonts.
   ================================================================ */

:root {
  --ink:     #0B1220;
  --ink-2:   #0E1729;
  --ink-3:   #121D33;
  --paper:   #FAFBFC;
  --muted:   rgba(250, 251, 252, 0.64);
  --faint:   rgba(250, 251, 252, 0.38);
  --line:    rgba(250, 251, 252, 0.09);
  --emerald: #10D9A0;
  --cyan:    #22D3EE;
  --blue:    #5B8BFF;
  --emerald-ghost: rgba(16, 217, 160, 0.14);
  --radius:  18px;
  --container: 1120px;
  --font: "Geist", system-ui, -apple-system, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --ease: cubic-bezier(0.22, 0.7, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: -0.011em;
  overflow-x: hidden;
}

::selection { background: rgba(16, 217, 160, 0.32); color: var(--paper); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 28px; }
.mono { font-family: var(--mono); }

a { color: inherit; text-decoration: none; }

h1, h2, h3 { font-weight: 600; letter-spacing: -0.025em; line-height: 1.08; }

.grad {
  background: linear-gradient(92deg, var(--emerald) 0%, var(--cyan) 55%, var(--blue) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------------------------------------------------------------
   Background — constellation canvas + ambient glow
   --------------------------------------------------------------- */
#field {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  display: block;
}

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(56% 42% at 50% -6%, rgba(16, 217, 160, 0.085), transparent 70%),
    radial-gradient(44% 38% at 88% 104%, rgba(91, 139, 255, 0.07), transparent 70%),
    radial-gradient(34% 30% at 4% 84%, rgba(34, 211, 238, 0.05), transparent 70%);
}

/* ---------------------------------------------------------------
   Reveal-on-scroll system (only when JS is present)
   --------------------------------------------------------------- */
.js .rv {
  opacity: 0;
  transform: translateY(26px);
  filter: blur(5px);
  transition:
    opacity   0.75s var(--ease) var(--d, 0s),
    transform 0.75s var(--ease) var(--d, 0s),
    filter    0.75s var(--ease) var(--d, 0s);
  will-change: opacity, transform;
}

.js .in > .rv,
.js .rv.in {
  opacity: 1;
  transform: none;
  filter: none;
}

/* ---------------------------------------------------------------
   Nav
   --------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  transition: transform 0.45s var(--ease), background 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(11, 18, 32, 0.72);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}

.nav.hidden { transform: translateY(-110%); }

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.025em;
}

.nav-word em { font-style: normal; font-weight: 500; color: var(--muted); }

.nav-links {
  display: flex;
  gap: 20px;
  margin-left: auto;
  font-size: 14px;
  color: var(--muted);
}

.nav-links a {
  position: relative;
  padding: 6px 0;
  transition: color 0.25s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--emerald), var(--cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.nav-links a:hover { color: var(--paper); }
.nav-links a.active { color: var(--paper); }
.nav-links a.active::after, .nav-links a:hover::after { transform: scaleX(1); }

.nav-cta { display: flex; align-items: center; gap: 12px; }

.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
  padding: 9px;
}

.nav-burger span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--paper);
  transition: transform 0.3s var(--ease), opacity 0.2s ease;
}

body.menu-open .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.menu-open .nav-burger span:nth-child(2) { opacity: 0; }
body.menu-open .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-menu {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 26px;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
  background: rgba(11, 18, 32, 0.92);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.nav-menu[hidden] { display: none; }
.nav-menu.open { opacity: 1; pointer-events: auto; }
body.menu-open { overflow: hidden; }

/* ---------------------------------------------------------------
   Buttons
   --------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15.5px;
  letter-spacing: -0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  transition: transform 0.25s var(--ease), box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.btn-sm { padding: 9px 18px; font-size: 14px; border-radius: 10px; }

.btn-primary {
  background: var(--emerald);
  color: #06281D;
  box-shadow: 0 0 0 0 rgba(16, 217, 160, 0);
}

.btn-primary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.45) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 0.7s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 34px -8px rgba(16, 217, 160, 0.55);
}

.btn-primary:hover::before { transform: translateX(120%); }

.btn-ghost {
  border-color: rgba(250, 251, 252, 0.22);
  color: var(--paper);
  background: rgba(250, 251, 252, 0.03);
}

.btn-ghost:hover {
  border-color: rgba(16, 217, 160, 0.6);
  background: var(--emerald-ghost);
  transform: translateY(-2px);
}

/* ---------------------------------------------------------------
   Hero
   --------------------------------------------------------------- */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 110px 24px 80px;
  position: relative;
}

.hero-atom-wrap { position: relative; }

.hero-atom {
  width: clamp(250px, 36vmin, 380px);
  height: auto;
  display: block;
  filter: drop-shadow(0 0 38px rgba(16, 217, 160, 0.13));
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--emerald);
  margin: 26px 0 18px;
}

.hero-eyebrow em { font-style: normal; color: var(--cyan); }

.hero h1 {
  font-size: clamp(40px, 7.2vw, 76px);
  font-weight: 700;
  margin-bottom: 22px;
}

.hero-sub {
  max-width: 660px;
  font-size: clamp(16px, 2vw, 19px);
  color: var(--muted);
  margin: 0 auto 34px;
}

.hero-ctas { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.scroll-cue {
  position: absolute;
  bottom: 26px;
  left: 50%;
  margin-left: -14px;
  width: 28px; height: 46px;
  border: 1.5px solid rgba(250, 251, 252, 0.25);
  border-radius: 16px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
  transition: border-color 0.3s ease;
}

.scroll-cue:hover { border-color: var(--emerald); }

.scroll-cue-dot {
  width: 4px; height: 9px;
  border-radius: 3px;
  background: var(--emerald);
  animation: cue 2s var(--ease) infinite;
}

@keyframes cue {
  0%   { transform: translateY(0);    opacity: 1; }
  60%  { transform: translateY(16px); opacity: 0; }
  61%  { transform: translateY(0);    opacity: 0; }
  100% { transform: translateY(0);    opacity: 1; }
}

/* hero mark pieces start hidden only when JS will animate them */
.js .anim-pending .mesh-line,
.js .anim-pending .mesh-dash { opacity: 0; }

.js .anim-pending .mesh-node,
.js .anim-pending .core-pop { opacity: 0; }

.mesh-node { transform-box: fill-box; transform-origin: center; }
.core-pop  { transform-box: fill-box; transform-origin: center; }

.hero-atom .orbits {
  stroke-opacity: 0.3;
  stroke-width: 1.15;
}

.hero-atom .mesh-dashed {
  opacity: 0.82;
}

.hero-atom .mesh-line,
.hero-atom .mesh-dash,
.hero-atom .orbits ellipse {
  filter: drop-shadow(0 0 2px rgba(250, 251, 252, 0.24));
}

/* ---------------------------------------------------------------
   Stats strip
   --------------------------------------------------------------- */
.stats { padding: 22px 0 10px; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 30px 12px;
}

.stat { text-align: center; }

.stat-n {
  display: block;
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(180deg, var(--paper), rgba(250, 251, 252, 0.72));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat span { font-size: 14px; color: var(--faint); letter-spacing: 0.01em; }

/* ---------------------------------------------------------------
   Sections
   --------------------------------------------------------------- */
.section { padding: 120px 0 30px; scroll-margin-top: 40px; }

.kicker {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--emerald);
  margin-bottom: 14px;
}

.section h2 { font-size: clamp(30px, 4.6vw, 48px); margin-bottom: 18px; }

.lede {
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(16px, 1.9vw, 18.5px);
  margin-bottom: 16px;
}

/* ---------------------------------------------------------------
   Subpages
   --------------------------------------------------------------- */
.page-main { padding-top: 84px; }

.page-hero {
  padding: 86px 0 26px;
  position: relative;
}

.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 64px;
  align-items: center;
}

.page-hero h1 {
  max-width: 760px;
  font-size: clamp(42px, 6.4vw, 72px);
  font-weight: 700;
  margin-bottom: 22px;
}

.page-sub {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(16px, 2vw, 20px);
  margin-bottom: 34px;
}

.page-mark {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 340px;
}

.page-mark img {
  position: relative;
  z-index: 2;
  width: min(48vw, 186px);
  height: auto;
  filter: drop-shadow(0 0 36px rgba(16, 217, 160, 0.16));
}

.page-mark::before {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(16, 217, 160, 0.16), transparent 64%);
}

.page-mark-ring {
  position: absolute;
  width: 270px;
  height: 92px;
  border: 1px solid rgba(250, 251, 252, 0.12);
  border-radius: 50%;
}

.ring-a { transform: rotate(-24deg); }
.ring-b { transform: rotate(32deg); }
.ring-c { transform: rotate(88deg); }

.compact-section { padding-top: 86px; }

.split-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
  align-items: start;
}

.lede-stack {
  display: grid;
  gap: 18px;
  color: var(--muted);
  font-size: clamp(16px, 1.9vw, 18.5px);
}

.page-checklist { gap: 16px; }

.contact-hero .page-hero-grid {
  grid-template-columns: minmax(0, 1fr) 390px;
}

.contact-card {
  border: 1px solid rgba(16, 217, 160, 0.28);
  border-radius: var(--radius);
  padding: 30px 28px;
  background:
    radial-gradient(90% 80% at 20% 0%, rgba(16, 217, 160, 0.12), transparent 68%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.014));
  box-shadow: 0 30px 80px -48px rgba(16, 217, 160, 0.45);
}

.contact-card p:last-child {
  color: var(--muted);
  font-size: 15.5px;
  margin-top: 14px;
}

.contact-email {
  display: inline-block;
  margin-top: 2px;
  font-family: var(--mono);
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--emerald);
  overflow-wrap: anywhere;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 34px;
  align-items: start;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 30px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012));
}

.contact-form > div,
.field-wide,
.form-submit {
  grid-column: 1 / -1;
}

.contact-form h2 {
  font-size: clamp(26px, 3.6vw, 38px);
  margin-bottom: 10px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 13px 14px;
  background: rgba(7, 12, 22, 0.86);
  color: var(--paper);
  font: inherit;
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.field select {
  min-height: 52px;
}

.field textarea {
  resize: vertical;
  min-height: 150px;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: rgba(16, 217, 160, 0.58);
  box-shadow: 0 0 0 3px rgba(16, 217, 160, 0.12);
}

.form-submit {
  width: max-content;
  margin-top: 6px;
}

.contact-aside {
  display: grid;
  gap: 18px;
}

/* ---------------------------------------------------------------
   Mesh diagram (#platform)
   --------------------------------------------------------------- */
.mesh-diagram {
  position: relative;
  margin-top: 56px;
  height: 420px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    radial-gradient(60% 80% at 50% 50%, rgba(16, 217, 160, 0.05), transparent 70%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
  overflow: hidden;
}

.mesh-wires { position: absolute; inset: 0; width: 100%; height: 100%; }

.mesh-center {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 22px 26px;
  border-radius: 20px;
  background: rgba(14, 23, 41, 0.85);
  border: 1px solid rgba(16, 217, 160, 0.28);
  box-shadow: 0 0 60px -12px rgba(16, 217, 160, 0.35);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}

.mesh-chip {
  position: absolute;
  left: var(--cx); top: var(--cy);
  transform: translate(-50%, -50%);
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(14, 23, 41, 0.9);
  font-family: var(--mono);
  font-size: 13.5px;
  color: var(--muted);
  white-space: nowrap;
  animation: bob 5.2s ease-in-out infinite;
  animation-delay: var(--bob, 0s);
  transition: color 0.3s ease, border-color 0.3s ease;
}

.mesh-chip:hover { color: var(--paper); border-color: rgba(16, 217, 160, 0.5); }

.chip-1 { --cx: 14%; --cy: 18%; }
.chip-2 { --cx: 86%; --cy: 16%; }
.chip-3 { --cx: 8%;  --cy: 62%; }
.chip-4 { --cx: 92%; --cy: 60%; }
.chip-5 { --cx: 28%; --cy: 90%; }
.chip-6 { --cx: 72%; --cy: 90%; }

@keyframes bob {
  0%, 100% { margin-top: 0; }
  50%      { margin-top: -7px; }
}

/* ---------------------------------------------------------------
   Cards
   --------------------------------------------------------------- */
.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 52px;
}

.card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012));
  transition: border-color 0.3s ease, transform 0.3s var(--ease), box-shadow 0.3s ease;
  transform-style: preserve-3d;
}

.card:hover {
  border-color: rgba(16, 217, 160, 0.35);
  box-shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.65), 0 0 44px -18px rgba(16, 217, 160, 0.25);
}

.card h3 { font-size: 21px; margin: 14px 0 10px; }
.card p  { color: var(--muted); font-size: 15.5px; }

.card-step {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--emerald);
  letter-spacing: 0.14em;
}

.card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }

.card-tags span {
  font-family: var(--mono);
  font-size: 12px;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--faint);
}

.card-code {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(7, 12, 22, 0.85);
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.7;
  overflow-x: auto;
}

/* ---------------------------------------------------------------
   Wire protocol (#wire)
   --------------------------------------------------------------- */
.wire-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}

.lang-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }

.lang-chips span {
  font-family: var(--mono);
  font-size: 13px;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  transition: border-color 0.35s ease, color 0.35s ease, box-shadow 0.35s ease;
}

.lang-chips span.lit {
  border-color: rgba(16, 217, 160, 0.55);
  color: var(--paper);
  box-shadow: 0 0 22px -6px rgba(16, 217, 160, 0.45);
}

.terminal {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #070C16;
  overflow: hidden;
  box-shadow: 0 36px 90px -42px rgba(0, 0, 0, 0.8);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
}

.t-dot { width: 11px; height: 11px; border-radius: 50%; background: rgba(250, 251, 252, 0.16); }
.t-dot:nth-child(1) { background: rgba(16, 217, 160, 0.65); }
.t-dot:nth-child(2) { background: rgba(34, 211, 238, 0.5); }
.t-dot:nth-child(3) { background: rgba(91, 139, 255, 0.5); }

.terminal-title {
  margin-left: 10px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  letter-spacing: 0.04em;
}

.terminal-body {
  padding: 20px 22px 24px;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.75;
  overflow-x: auto;
  min-height: 360px;
  white-space: pre;
}

.cursor {
  display: inline-block;
  width: 8px; height: 16px;
  margin-left: 2px;
  vertical-align: -2px;
  background: var(--emerald);
  animation: blink 1s steps(1) infinite;
}

@keyframes blink { 50% { opacity: 0; } }

/* token palette (terminal + code blocks) */
.tk-k { color: var(--cyan); }
.tk-s { color: var(--emerald); }
.tk-p { color: rgba(250, 251, 252, 0.55); }
.tk-c { color: rgba(250, 251, 252, 0.34); font-style: italic; }
.tk-m { color: var(--blue); }
.tk-f { color: var(--paper); }

/* ---------------------------------------------------------------
   Tiers (#tiers)
   --------------------------------------------------------------- */
.port-track {
  position: relative;
  height: 2px;
  margin: 48px 8% 0;
  background: linear-gradient(90deg, transparent, var(--line) 12%, var(--line) 88%, transparent);
}

.port-dot {
  position: absolute;
  top: 50%; left: 8%;
  width: 12px; height: 12px;
  margin: -6px 0 0 -6px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 18px 2px rgba(16, 217, 160, 0.55);
  animation: port 9s var(--ease) infinite;
}

@keyframes port {
  0%, 16%  { left: 8%;  background: var(--emerald); }
  33%, 49% { left: 50%; background: var(--cyan); }
  66%, 82% { left: 92%; background: var(--blue); }
  100%     { left: 8%;  background: var(--emerald); }
}

.tier-glyph { font-size: 26px; color: var(--emerald); line-height: 1; }

.card .tier-art { margin: 6px 0 12px; font-size: 13.5px; color: var(--cyan); }

.tier-feature {
  border-color: rgba(16, 217, 160, 0.3);
  background:
    radial-gradient(80% 60% at 50% 0%, rgba(16, 217, 160, 0.09), transparent 70%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.012));
}

/* ---------------------------------------------------------------
   Trust (#trust)
   --------------------------------------------------------------- */
.trust-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.checklist { list-style: none; display: grid; gap: 14px; }

.checklist li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.01));
  font-size: 15.5px;
  font-weight: 500;
}

.check {
  width: 22px; height: 22px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--emerald);
  stroke-width: 2.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.js .check path {
  stroke-dasharray: 26;
  stroke-dashoffset: 26;
  transition: stroke-dashoffset 0.7s var(--ease) calc(var(--d, 0s) + 0.35s);
}

.js .in .check path,
.js .rv.in .check path { stroke-dashoffset: 0; }

/* ---------------------------------------------------------------
   Quickstart (#quickstart)
   --------------------------------------------------------------- */
.quick-panel {
  margin-top: 44px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #070C16;
  overflow: hidden;
  box-shadow: 0 36px 90px -42px rgba(0, 0, 0, 0.8);
}

.quick-install {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 22px;
  font-size: 14.5px;
  border-bottom: 1px solid var(--line);
  background: rgba(16, 217, 160, 0.05);
}

.copy-btn {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 12px;
  padding: 6px 13px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.25s ease, color 0.25s ease;
}

.copy-btn:hover { border-color: rgba(16, 217, 160, 0.55); color: var(--paper); }
.copy-btn.done  { border-color: var(--emerald); color: var(--emerald); }

.quick-code {
  padding: 22px 24px 26px;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.8;
  overflow-x: auto;
  white-space: pre;
}

.js .qline {
  display: inline-block;
  min-height: 1em;
  opacity: 0;
  transform: translateX(-14px);
  transition: opacity 0.55s var(--ease) var(--d, 0s), transform 0.55s var(--ease) var(--d, 0s);
}

.js .in .qline { opacity: 1; transform: none; }

.quick-note { margin-top: 22px; color: var(--faint); font-size: 14.5px; }
.quick-note .mono { color: var(--muted); }

/* ---------------------------------------------------------------
   Footer
   --------------------------------------------------------------- */
.footer {
  margin-top: 110px;
  border-top: 1px solid var(--line);
  padding: 56px 0 48px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent);
}

.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 14px; text-align: center; }
.footer-lockup { height: 44px; width: auto; }
.footer-tag  { color: var(--muted); font-size: 15px; }
.footer-tag strong {
  color: var(--paper);
  font-weight: 600;
}
.footer-fine { color: var(--faint); font-size: 13px; font-family: var(--mono); }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  font-size: 14px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--muted);
  background: rgba(250, 251, 252, 0.025);
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.footer-links a:hover {
  color: var(--paper);
  border-color: rgba(16, 217, 160, 0.45);
  background: rgba(16, 217, 160, 0.08);
}

/* ---------------------------------------------------------------
   Responsive
   --------------------------------------------------------------- */
@media (max-width: 940px) {
  .wire-grid, .trust-grid, .page-hero-grid, .split-grid, .contact-grid, .contact-hero .page-hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .cards-3 { grid-template-columns: 1fr; }
  .section { padding: 84px 0 20px; }
  .mesh-diagram { height: 520px; }
  .page-mark { min-height: 260px; }
}

@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 26px 12px; }
  .terminal-body { font-size: 12px; min-height: 320px; }
  .hero { padding-top: 96px; }
  .port-track { margin: 40px 4% 0; }
  .page-main { padding-top: 72px; }
  .page-hero { padding-top: 58px; }
  .contact-form { grid-template-columns: 1fr; padding: 24px; }
  .form-submit { width: 100%; }

  /* keep mesh chips inside the rounded frame on narrow screens */
  .chip-1 { --cx: 20%; --cy: 13%; }
  .chip-2 { --cx: 78%; --cy: 13%; }
  .chip-3 { --cx: 15%; --cy: 50%; }
  .chip-4 { --cx: 84%; --cy: 50%; }
  .chip-5 { --cx: 26%; --cy: 88%; }
  .chip-6 { --cx: 75%; --cy: 88%; }
}

@media (max-width: 520px) {
  .nav-inner { gap: 16px; }
  .nav-cta .btn-sm { display: none; }
  .nav-word { font-size: 17px; }
}

/* ---------------------------------------------------------------
   Reduced motion — static, fully readable
   --------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .js .rv, .js .qline, .js .check path {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    transition: none !important;
    stroke-dashoffset: 0 !important;
  }

  .js .anim-pending .mesh-line,
  .js .anim-pending .mesh-dash,
  .js .anim-pending .mesh-node,
  .js .anim-pending .core-pop { opacity: 1; }

  .scroll-cue-dot, .port-dot, .mesh-chip, .cursor, .btn-primary::before {
    animation: none !important;
    transition: none !important;
  }
}