/* RedGoose Labs LLC — site styles */

:root {
  --bg: #08090B;
  --bg-2: #0A0B0E;
  --bg-3: #07080A;
  --ac: #E3483B;
  --ac-hover: #F26B5E;
  --text: #F2F3F5;
  --text-bright: #FBFBFC;
  --text-soft: #C3C8CE;
  --muted: #8A9098;
  --muted-2: #9AA0A8;
  --dim: #6B7078;
  --dim-2: #5C6169;
  --line: rgba(255, 255, 255, 0.06);
  --line-2: rgba(255, 255, 255, 0.09);
  --card-line: rgba(255, 255, 255, 0.08);
  --sans: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --display: "Space Grotesk", var(--sans);
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --pad-x: 32px;
  --section-y: 120px;
  --nav-h: 68px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  background: var(--bg);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

img, canvas, svg { display: block; max-width: 100%; }

a {
  color: var(--ac);
  text-decoration: none;
  transition: color 200ms ease;
}
a:hover { color: var(--ac-hover); }

::selection { background: rgba(227, 72, 59, 0.32); }

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.section {
  position: relative;
  padding: var(--section-y) var(--pad-x);
  border-top: 1px solid var(--line);
}

.section--tinted { background: linear-gradient(180deg, var(--bg-2), var(--bg)); }

.eyebrow {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--dim);
  margin-bottom: 22px;
}

.h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(30px, 3.6vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-bright);
}

/* ---------- header / navigation ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(8, 9, 11, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.site-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  position: relative;
  z-index: 2;
}
.brand:hover { color: var(--text); }

.brand__mark {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ac);
  box-shadow: 0 0 14px 2px rgba(227, 72, 59, 0.55);
  flex: none;
}

.brand__name {
  font-family: var(--display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 34px;
  font-size: 14px;
  letter-spacing: 0.01em;
}

.nav a { color: var(--muted-2); }
.nav a:hover { color: var(--text); }

.nav-toggle {
  display: none;
  position: relative;
  z-index: 2;
  align-items: center;
  gap: 12px;
  padding: 10px 4px 10px 14px;
  background: none;
  border: 0;
  color: var(--text);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.nav-toggle__bars {
  position: relative;
  width: 26px;
  height: 12px;
  flex: none;
}

.nav-toggle__bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: var(--text);
  transition: transform 320ms cubic-bezier(.6,.05,.2,1), opacity 200ms ease;
}
.nav-toggle__bars span:nth-child(1) { top: 0; }
.nav-toggle__bars span:nth-child(2) { top: 10.5px; }

body.menu-open .nav-toggle__bars span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
body.menu-open .nav-toggle__bars span:nth-child(2) { transform: translateY(-5.5px) rotate(-45deg); }

/* full-screen overlay menu */
.menu {
  position: fixed;
  inset: 0;
  z-index: 55;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--nav-h) + 48px) var(--pad-x) 48px;
  background: rgba(7, 8, 10, 0.97);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 420ms ease, transform 420ms cubic-bezier(.22,.61,.36,1), visibility 420ms;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.menu::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -22%;
  width: min(1100px, 150%);
  aspect-ratio: 1.2;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(227, 72, 59, 0.16), transparent 70%);
  filter: blur(14px);
  pointer-events: none;
}

body.menu-open .menu {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.menu__list {
  position: relative;
  list-style: none;
  margin: 0 auto;
  padding: 0;
  width: 100%;
  max-width: 1200px;
  display: grid;
}

.menu__list li {
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms cubic-bezier(.22,.61,.36,1);
}
.menu__list li:last-child { border-bottom: 1px solid rgba(255, 255, 255, 0.09); }

body.menu-open .menu__list li {
  opacity: 1;
  transform: none;
  transition-delay: calc(120ms + var(--i) * 65ms);
}

.menu__link {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 22px 4px;
  color: var(--text-bright);
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(30px, 9vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  transition: color 220ms ease, padding-left 320ms cubic-bezier(.22,.61,.36,1);
}
.menu__link:hover,
.menu__link:active {
  color: var(--ac);
  padding-left: 12px;
}

.menu__index {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--dim);
  flex: none;
}

.menu__foot {
  position: relative;
  max-width: 1200px;
  width: 100%;
  margin: 40px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 26px;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--dim-2);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 520ms ease 380ms, transform 520ms ease 380ms;
}
body.menu-open .menu__foot { opacity: 1; transform: none; }

.menu__cta {
  display: inline-flex;
  align-items: center;
  padding: 13px 24px;
  border-radius: 999px;
  background: var(--ac);
  color: #0B0B0C;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0;
}
.menu__cta:hover { color: #0B0B0C; background: var(--ac-hover); }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 26px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 15px;
  border: 1px solid transparent;
  transition: transform 220ms ease, box-shadow 220ms ease, background 220ms ease, border-color 220ms ease;
}

.btn--primary { background: var(--ac); color: #0B0B0C; }
.btn--primary:hover {
  color: #0B0B0C;
  transform: translateY(-2px);
  box-shadow: 0 14px 34px -12px rgba(227, 72, 59, 0.65);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.03);
  color: #EDEEF0;
  border-color: rgba(255, 255, 255, 0.14);
}
.btn--ghost:hover {
  color: #EDEEF0;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.28);
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 160px var(--pad-x) 120px;
  isolation: isolate;
}

.hero__stars {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero__glow,
.hero__glow-2,
.hero__fade { position: absolute; z-index: 1; pointer-events: none; }

.hero__glow {
  left: 50%;
  top: -18%;
  width: 1100px;
  height: 900px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(227, 72, 59, 0.16), rgba(227, 72, 59, 0.04) 55%, transparent 72%);
  filter: blur(12px);
  animation: rg-drift 18s ease-in-out infinite alternate;
}

.hero__glow-2 {
  left: -12%;
  bottom: -20%;
  width: 800px;
  height: 700px;
  background: radial-gradient(closest-side, rgba(86, 120, 190, 0.16), transparent 70%);
  filter: blur(16px);
}

.hero__fade {
  inset: auto 0 0 0;
  height: 240px;
  background: linear-gradient(to bottom, transparent, var(--bg));
}

.hero__inner { position: relative; z-index: 2; }

.hero__label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 30px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: #C9CDD3;
}

.hero__label::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--ac);
  flex: none;
}

.hero__title {
  margin: 0;
  max-width: 15ch;
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(44px, 7.4vw, 108px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  color: var(--text-bright);
}

.hero__lede {
  margin: 32px 0 0;
  max-width: 60ch;
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 1.65;
  color: #9BA1A9;
  text-wrap: pretty;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 44px;
}

.hero__meta {
  margin-top: 76px;
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: #61666D;
}

.hero__meta hr {
  flex: 1;
  max-width: 180px;
  height: 1px;
  min-width: 40px;
  margin: 0;
  border: 0;
  background: rgba(255, 255, 255, 0.12);
}

/* ---------- about ---------- */

.about__grid {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 56px;
  align-items: start;
}

.about__lead {
  margin: 0;
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.6;
  color: var(--text-soft);
  text-wrap: pretty;
}

.about__note {
  margin: 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--muted);
  text-wrap: pretty;
  padding-left: 22px;
  border-left: 1px solid var(--ac);
}

.h2--about { max-width: 22ch; }

/* ---------- what we build ---------- */

.build__head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

.build__intro {
  margin: 0;
  max-width: 42ch;
  font-size: 17px;
  line-height: 1.6;
  color: var(--muted);
}

.cards {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  position: relative;
  padding: 34px 30px 36px;
  border: 1px solid var(--card-line);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.01));
  transition: border-color 260ms ease, transform 260ms ease, background 260ms ease;
}

@media (hover: hover) {
  .card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015));
  }
}

.card__glyph {
  height: 56px;
  display: flex;
  align-items: center;
}

.glyph-device {
  width: 30px;
  height: 46px;
  border: 1px solid var(--ac);
  border-radius: 7px;
  position: relative;
}
.glyph-device::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 5px;
  transform: translateX(-50%);
  width: 10px;
  height: 1px;
  background: var(--ac);
}

.glyph-circles { position: relative; width: 62px; height: 42px; }
.glyph-circles span {
  position: absolute;
  top: 4px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
}
.glyph-circles span:last-child {
  left: 22px;
  border-color: var(--ac);
}

.glyph-grid {
  display: grid;
  grid-template-columns: repeat(3, 10px);
  gap: 9px;
}
.glyph-grid span { width: 10px; height: 10px; background: rgba(255, 255, 255, 0.22); }
.glyph-grid span:nth-child(1) { background: var(--ac); }
.glyph-grid span:nth-child(2),
.glyph-grid span:nth-child(5) { background: rgba(255, 255, 255, 0.5); }

.card__title {
  margin: 26px 0 0;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 12.5px;
  letter-spacing: 0.18em;
  color: #EDEEF0;
}

.card__copy {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.65;
  color: var(--muted);
  text-wrap: pretty;
}

/* ---------- products ---------- */

.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-2);
  border-radius: 24px;
  background:
    radial-gradient(120% 140% at 88% 8%, rgba(227, 72, 59, 0.14), transparent 58%),
    linear-gradient(180deg, #0E1014, #0A0B0E);
}

.panel__grid-lines {
  position: absolute;
  inset: 0;
  opacity: 0.5;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(90% 90% at 70% 20%, #000, transparent 75%);
  mask-image: radial-gradient(90% 90% at 70% 20%, #000, transparent 75%);
  pointer-events: none;
}

.panel__inner {
  position: relative;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 48px;
  padding: clamp(28px, 5vw, 66px);
  align-items: center;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid rgba(227, 72, 59, 0.4);
  background: rgba(227, 72, 59, 0.09);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: #F1B7B1;
}

.pill__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ac);
  flex: none;
  animation: rg-pulse 2.4s ease-in-out infinite;
}

.panel__title {
  margin: 28px 0 0;
  max-width: 22ch;
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(25px, 2.7vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.025em;
  color: var(--text-bright);
}

.panel__copy {
  margin: 22px 0 0;
  max-width: 52ch;
  font-size: 17px;
  line-height: 1.7;
  color: #979DA5;
  text-wrap: pretty;
}

.panel__note {
  margin: 22px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: #62676E;
}

.panel__visual { display: flex; justify-content: center; }

.device {
  position: relative;
  width: min(240px, 68vw);
  aspect-ratio: 9 / 17.5;
  border-radius: 34px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.015));
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.9), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.device__screen {
  position: absolute;
  inset: 9px;
  border-radius: 27px;
  background: linear-gradient(180deg, #0A0C10, #101319);
  display: flex;
  align-items: center;
  justify-content: center;
}

.device__icon {
  width: 62px;
  height: 62px;
  border-radius: 18px;
  border: 1px solid rgba(227, 72, 59, 0.55);
  background: radial-gradient(closest-side, rgba(227, 72, 59, 0.28), transparent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.device__icon span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ac);
  box-shadow: 0 0 18px 4px rgba(227, 72, 59, 0.6);
  animation: rg-pulse 3s ease-in-out infinite;
}

.device__notch {
  position: absolute;
  left: 50%;
  top: 20px;
  transform: translateX(-50%);
  width: 58px;
  height: 6px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.14);
}

/* ---------- approach ---------- */

.principles {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 44px;
}

.principle {
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.principle__num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ac);
}

.principle__title {
  margin: 18px 0 0;
  font-family: var(--display);
  font-weight: 500;
  font-size: 21px;
  letter-spacing: -0.01em;
  color: var(--text);
}

.principle__copy {
  margin: 12px 0 0;
  font-size: 16px;
  line-height: 1.65;
  color: var(--muted);
  text-wrap: pretty;
}

.h2--approach { max-width: 24ch; }

/* ---------- contact ---------- */

.contact {
  padding-top: 140px;
  padding-bottom: 130px;
  overflow: hidden;
}

.contact__glow {
  position: absolute;
  z-index: 0;
  left: 50%;
  bottom: -55%;
  width: min(1000px, 160%);
  aspect-ratio: 1.25;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(227, 72, 59, 0.13), transparent 70%);
  filter: blur(10px);
  pointer-events: none;
}

.contact__inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  display: grid;
  justify-items: center;
}

.contact .eyebrow { margin-bottom: 24px; }

.contact__title {
  max-width: 20ch;
  font-size: clamp(32px, 4.4vw, 60px);
  line-height: 1.03;
}

.contact__copy {
  margin: 26px 0 0;
  max-width: 46ch;
  font-size: 17.5px;
  line-height: 1.7;
  color: #939AA2;
  text-wrap: pretty;
}

.contact__btn { margin-top: 40px; padding: 15px 30px; font-size: 15.5px; }

.contact__rule {
  margin-top: 34px;
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--dim-2);
}

.contact__rule::before,
.contact__rule::after {
  content: "";
  width: 34px;
  height: 1px;
  background: rgba(255, 255, 255, 0.14);
  flex: none;
}

/* ---------- footer ---------- */

.site-footer {
  position: relative;
  padding: 64px var(--pad-x) 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  background: var(--bg-3);
}

.site-footer__grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-weight: 600;
  font-size: 16px;
  color: #EDEEF0;
}

.footer-brand span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ac);
  flex: none;
}

.site-footer p {
  margin: 12px 0 0;
  max-width: 34ch;
  font-size: 14.5px;
  line-height: 1.7;
  color: #7E848C;
}

.footer-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 14.5px;
  color: var(--muted-2);
}
.footer-link:hover { color: var(--text); }

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 11px;
  font-size: 14.5px;
}
.footer-nav a { color: #7E848C; }
.footer-nav a:hover { color: var(--text); }

.site-footer__legal {
  max-width: 1200px;
  margin: 48px auto 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--dim-2);
}

/* ---------- privacy page ---------- */

.doc { max-width: 900px; margin: 0 auto; padding: 96px var(--pad-x) 120px; }

.doc__title {
  margin: 20px 0 0;
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(32px, 5vw, 58px);
  line-height: 1.03;
  letter-spacing: -0.03em;
  color: var(--text-bright);
}

.doc__date {
  margin: 20px 0 0;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: #62676E;
}

.doc__intro {
  margin: 44px 0 0;
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-soft);
  text-wrap: pretty;
  padding-left: 22px;
  border-left: 1px solid var(--ac);
}

.doc section {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--line-2);
}
.doc section:first-of-type { margin-top: 56px; }

.doc h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 500;
  font-size: 23px;
  letter-spacing: -0.015em;
  color: var(--text);
}

.doc p {
  margin: 14px 0 0;
  font-size: 16.5px;
  line-height: 1.75;
  color: #8F959D;
  text-wrap: pretty;
}

.doc__contact {
  margin-top: 48px;
  padding: 32px;
  border: 1px solid var(--line-2);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.012));
}

.doc__contact-meta { margin-top: 22px; display: grid; gap: 6px; }
.doc__contact-name {
  font-family: var(--display);
  font-size: 17px;
  font-weight: 500;
  color: var(--text);
}
.doc__contact-sub { font-size: 15px; color: var(--muted); }

.doc__email {
  margin-top: 12px;
  justify-self: start;
  font-size: 15.5px;
  color: #E7E8EA;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding-bottom: 2px;
}
.doc__email:hover { color: #fff; border-bottom-color: var(--ac); }

.doc-header { position: sticky; top: 0; }
.doc-back { font-size: 14px; color: var(--muted-2); }
.doc-back:hover { color: var(--text); }

.doc-footer {
  padding: 40px var(--pad-x);
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  background: var(--bg-3);
}
.doc-footer__inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 20px;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--dim-2);
}
.doc-footer__inner a { color: #7E848C; }
.doc-footer__inner a:hover { color: var(--text); }

/* ---------- scroll reveal ---------- */

.reveal > * {
  opacity: 1;
  transform: none;
}

body.js .reveal.is-armed > * {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms cubic-bezier(.22,.61,.36,1), transform 700ms cubic-bezier(.22,.61,.36,1);
}

body.js .reveal.is-armed.is-visible > * {
  opacity: 1;
  transform: none;
}

/* ---------- animations ---------- */

@keyframes rg-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.82); }
}

@keyframes rg-drift {
  0% { transform: translate3d(-50%, 0, 0) scale(1); }
  100% { transform: translate3d(-50%, -3%, 0) scale(1.06); }
}

/* ---------- responsive ---------- */

@media (max-width: 1080px) {
  :root { --section-y: 104px; }
  .about__grid { gap: 40px; }
  .principles { gap: 36px; }
}

@media (max-width: 900px) {
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .panel__inner { gap: 40px; }
}

@media (max-width: 860px) {
  :root { --pad-x: 24px; --section-y: 88px; }
  html { scroll-padding-top: 84px; }
  .hero { padding-top: 132px; padding-bottom: 96px; }
  .hero__meta { margin-top: 56px; flex-wrap: wrap; gap: 10px 14px; }
  .hero__meta hr { display: none; }
  .about__grid,
  .cards,
  .panel__inner,
  .principles,
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
  .cards { gap: 16px; }
  .panel__inner { padding: 32px 26px 40px; }
  .panel__visual { order: -1; justify-content: flex-start; }
  .device { width: min(190px, 52vw); }
  .build__head { align-items: start; gap: 16px; }
  .cards { margin-top: 44px; }
  .principles { margin-top: 44px; gap: 30px; }
  .contact { padding-top: 104px; padding-bottom: 96px; }
  .contact__inner { text-align: left; justify-items: start; }
  .contact__rule::before { display: none; }
  .doc { padding-top: 72px; padding-bottom: 88px; }
}

@media (max-width: 560px) {
  :root { --pad-x: 20px; --section-y: 76px; }
  .site-header__inner { padding: 15px var(--pad-x); }
  .brand__name { font-size: 16px; }
  .nav-toggle { font-size: 0; letter-spacing: 0; gap: 0; padding: 10px 2px 10px 10px; }
  .hero { padding-top: 118px; }
  .hero__actions { gap: 12px; }
  .btn { padding: 14px 22px; font-size: 14.5px; }
  .hero__actions .btn { flex: 1 1 100%; justify-content: center; }
  .menu { padding-top: calc(var(--nav-h) + 32px); justify-content: flex-start; }
  .menu__link { padding: 18px 2px; gap: 12px; }
  .menu__foot { flex-direction: column; align-items: stretch; gap: 18px; }
  .menu__cta { justify-content: center; }
  .card { padding: 28px 24px 30px; }
  .doc__contact { padding: 26px 22px; }
  .site-footer { padding-top: 52px; }
  .site-footer__legal { margin-top: 36px; }
}

@media (max-width: 400px) {
  .hero__label { letter-spacing: 0.18em; font-size: 11px; }
  .hero__meta { font-size: 10.5px; letter-spacing: 0.14em; }
  .contact__rule { font-size: 10.5px; }
}

@media (min-width: 901px) {
  .menu { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  body.js .reveal.is-armed > * { opacity: 1; transform: none; }
}