/* ==========================================================================
   CORVU — Electric Obsidian
   ========================================================================== */

:root {
  --obsidian: #080A0F;
  --graphite: #11151D;
  --electric: #5267FF;
  --soft-white: #F4F6FA;
  --muted: #8B93A3;
  --gradient: linear-gradient(135deg, #5267FF 0%, #7A5CFF 100%);
  --radius: 10px;
  --max: 1400px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;
  --space-8: 128px;
  --space-9: 160px;
  --font-display: "Sora", sans-serif;
  --font-body: "Inter", sans-serif;
  --header-h: 80px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* Reset ------------------------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--obsidian);
  color: var(--soft-white);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--electric);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -100px;
  z-index: 1000;
  background: var(--electric);
  color: var(--soft-white);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 600;
}

.skip-link:focus {
  top: var(--space-2);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.accent {
  color: var(--electric);
}

.section-label {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--space-4);
}

.section-label--dark {
  color: rgba(8, 10, 15, 0.45);
}

/* Buttons ----------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  transition:
    transform 0.35s var(--ease),
    box-shadow 0.35s var(--ease),
    border-color 0.3s ease,
    color 0.3s ease,
    background 0.3s ease;
  white-space: nowrap;
}

.btn--primary {
  background: var(--gradient);
  color: var(--soft-white);
  box-shadow: 0 8px 24px rgba(82, 103, 255, 0.18);
}

.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(82, 103, 255, 0.25);
}

.btn--secondary {
  background: transparent;
  color: var(--soft-white);
  border: 1px solid rgba(244, 246, 250, 0.55);
}

.btn--secondary:hover {
  transform: translateY(-3px);
  border-color: var(--electric);
  color: var(--electric);
}

.btn--nav {
  min-height: 42px;
  padding: 12px 18px;
  background: var(--gradient);
  color: var(--soft-white);
  font-size: 12px;
}

.btn--nav:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(82, 103, 255, 0.25);
}

.btn--dark {
  background: var(--obsidian);
  color: var(--soft-white);
}

.btn--dark:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(8, 10, 15, 0.28);
}

/* Navigation -------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 10, 15, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(244, 246, 250, 0.06);
}

.nav__inner {
  max-width: var(--max);
  margin: 0 auto;
  min-height: var(--header-h);
  padding: 0 var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.nav__logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  position: relative;
  z-index: 2;
}

.nav__logo:hover {
  color: var(--electric);
}

.nav__toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.nav__menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid rgba(244, 246, 250, 0.2);
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
  z-index: 2;
}

.nav__menu-label {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.nav__panel {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav__links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.25s ease;
  position: relative;
}

.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: var(--electric);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.nav__links a:hover,
.nav__links a:focus-visible {
  color: var(--soft-white);
}

.nav__links a:hover::after,
.nav__links a:focus-visible::after {
  transform: scaleX(1);
}

/* Hero -------------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding:
    calc(var(--header-h) + var(--space-6))
    var(--space-4)
    var(--space-6);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 40% at 78% 42%, rgba(82, 103, 255, 0.09), transparent 70%),
    linear-gradient(180deg, transparent 80%, rgba(8, 10, 15, 1));
  pointer-events: none;
}

.hero__grid {
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: var(--space-6);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin-bottom: var(--space-4);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 9vw, 9.5rem);
  line-height: 0.9;
  letter-spacing: -0.065em;
  font-weight: 700;
  display: flex;
  flex-direction: column;
}

.hero__support {
  max-width: 28ch;
  margin-top: var(--space-5);
  color: var(--muted);
  font-size: clamp(17px, 1.4vw, 20px);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.hero__scroll {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  width: 100%;
  margin: var(--space-7) auto 0;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.hero__scroll a {
  transition: color 0.25s ease;
}

.hero__scroll a:hover {
  color: var(--electric);
}

/* Corvu Signal ------------------------------------------------------------ */

.signal {
  width: 100%;
  max-width: 560px;
  margin-left: auto;
}

.signal__frame {
  position: relative;
  aspect-ratio: 1;
  background:
    linear-gradient(160deg, rgba(17, 21, 29, 0.95), rgba(8, 10, 15, 0.98));
  border: 1px solid rgba(244, 246, 250, 0.08);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

.signal__grid {
  position: absolute;
  inset: 12%;
  background-image:
    linear-gradient(rgba(244, 246, 250, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 246, 250, 0.035) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at center, black 30%, transparent 78%);
}

.signal__ring {
  position: absolute;
  inset: 18%;
  border: 1px solid rgba(244, 246, 250, 0.1);
  border-radius: 4px;
  animation: ringFloat 12s var(--ease) infinite;
}

.signal__ring--2 {
  inset: 28%;
  border-color: rgba(82, 103, 255, 0.22);
  animation-delay: -2s;
}

.signal__ring--3 {
  inset: 38%;
  border-color: rgba(244, 246, 250, 0.08);
  animation-delay: -4s;
}

.signal__line {
  position: absolute;
  left: 8%;
  right: 8%;
  top: 50%;
  height: 1px;
  background: var(--gradient);
  transform-origin: center;
  box-shadow: 0 0 18px rgba(82, 103, 255, 0.35);
  animation: signalMove 8s var(--ease) infinite;
}

.signal__core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--electric);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 6px rgba(82, 103, 255, 0.12);
  animation: corePulse 3.2s ease-in-out infinite;
}

.signal__node {
  position: absolute;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--electric);
  opacity: 0.85;
}

.signal__node--1 { top: 22%; left: 24%; }
.signal__node--2 { top: 28%; right: 26%; }
.signal__node--3 { bottom: 26%; left: 30%; }
.signal__node--4 { bottom: 30%; right: 22%; }
.signal__node--5 { top: 46%; left: 18%; width: 4px; height: 4px; opacity: 0.55; }

.signal__label {
  position: absolute;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.signal__label--tl { top: 18px; left: 18px; }
.signal__label--tr { top: 18px; right: 18px; }
.signal__label--bl { bottom: 18px; left: 18px; }
.signal__label--br { bottom: 18px; right: 18px; }

.signal__status {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--electric);
  box-shadow: 0 0 0 0 rgba(82, 103, 255, 0.45);
  animation: statusPulse 2.4s ease-in-out infinite;
}

/* Trust Strip ------------------------------------------------------------- */

.trust {
  background: var(--graphite);
  border-block: 1px solid rgba(244, 246, 250, 0.05);
  overflow: hidden;
  padding: var(--space-4) 0;
}

.trust__track {
  display: flex;
  width: max-content;
  animation: trustScroll 40s linear infinite;
}

.trust__content {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-right: var(--space-4);
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  font-weight: 600;
  letter-spacing: 0.18em;
  color: rgba(139, 147, 163, 0.75);
  white-space: nowrap;
}

.trust__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--electric);
  opacity: 0.7;
  flex-shrink: 0;
}

/* Core Statement ---------------------------------------------------------- */

.statement {
  background: var(--soft-white);
  color: var(--obsidian);
  padding: var(--space-9) var(--space-4);
}

.statement__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 4px 1fr;
  gap: var(--space-5);
  align-items: start;
}

.statement__rule {
  width: 3px;
  min-height: 180px;
  background: var(--electric);
  border-radius: 2px;
  margin-top: 8px;
}

.statement__content {
  max-width: 18ch;
}

.statement__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: -0.045em;
  font-weight: 700;
  display: flex;
  flex-direction: column;
  color: var(--obsidian);
}

.statement__text {
  margin-top: var(--space-5);
  max-width: 38ch;
  font-size: clamp(17px, 1.4vw, 20px);
  color: rgba(8, 10, 15, 0.68);
}

/* Principles -------------------------------------------------------------- */

.principles {
  background: var(--obsidian);
  border-top: 1px solid rgba(244, 246, 250, 0.05);
}

.principle {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-5);
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--space-6) var(--space-4);
  border-bottom: 1px solid rgba(244, 246, 250, 0.06);
  position: relative;
  transition: background 0.35s ease;
}

.principle__indicator {
  position: absolute;
  left: 0;
  top: 18%;
  bottom: 18%;
  width: 3px;
  background: var(--electric);
  opacity: 0;
  transform: scaleY(0.6);
  transition:
    opacity 0.35s ease,
    transform 0.35s var(--ease);
}

.principle__number {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 7vw, 6.5rem);
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 1;
  color: rgba(244, 246, 250, 0.12);
  transition: color 0.35s ease;
  min-width: 1.6em;
}

.principle__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-1);
}

.principle__lead {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 600;
  color: var(--soft-white);
  margin-bottom: var(--space-1);
}

.principle__desc {
  color: var(--muted);
  font-size: 17px;
  max-width: 36ch;
}

.principle__arrow {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--muted);
  transition:
    transform 0.35s var(--ease),
    color 0.35s ease;
}

.principle:hover,
.principle:focus-visible {
  background: rgba(17, 21, 29, 0.7);
}

.principle:hover .principle__indicator,
.principle:focus-visible .principle__indicator {
  opacity: 1;
  transform: scaleY(1);
}

.principle:hover .principle__number,
.principle:focus-visible .principle__number {
  color: var(--electric);
}

.principle:hover .principle__arrow,
.principle:focus-visible .principle__arrow {
  color: var(--electric);
  transform: translateX(8px);
}

/* Features ---------------------------------------------------------------- */

.features {
  background: var(--graphite);
  padding: var(--space-9) var(--space-4);
  border-block: 1px solid rgba(244, 246, 250, 0.04);
}

.features__inner {
  max-width: var(--max);
  margin: 0 auto;
}

.features__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: -0.045em;
  font-weight: 700;
  display: flex;
  flex-direction: column;
  margin-bottom: var(--space-8);
}

.features__composition {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.features__word {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 0.9;
}

.features__word--left {
  text-align: right;
  color: rgba(244, 246, 250, 0.92);
}

.features__word--right {
  text-align: left;
  color: var(--electric);
}

.features__connector {
  position: relative;
  width: clamp(80px, 18vw, 220px);
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.features__line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--gradient);
  position: relative;
  overflow: hidden;
}

.features__line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(244, 246, 250, 0.7), transparent);
  animation: lineSweep 3.8s ease-in-out infinite;
}

.features__node {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--soft-white);
  box-shadow: 0 0 0 6px rgba(82, 103, 255, 0.18);
}

.features__flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.features__sep {
  color: var(--electric);
}

/* How It Works ------------------------------------------------------------ */

.how {
  background: var(--obsidian);
  padding: var(--space-9) var(--space-4);
}

.how__inner {
  max-width: var(--max);
  margin: 0 auto;
}

.how__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: -0.045em;
  font-weight: 700;
  margin-bottom: var(--space-8);
}

.how__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  position: relative;
}

.how__steps::before {
  content: "";
  position: absolute;
  top: 14px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(82, 103, 255, 0.15), var(--electric), rgba(122, 92, 255, 0.2));
}

.how__step {
  position: relative;
  padding-top: var(--space-5);
}

.how__step::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 0;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--obsidian);
  border: 2px solid var(--electric);
  box-shadow: 0 0 0 4px rgba(82, 103, 255, 0.12);
  z-index: 1;
}

.how__num {
  display: block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--electric);
  margin-bottom: var(--space-2);
}

.how__step-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-1);
}

.how__step-desc {
  color: var(--muted);
  font-size: 17px;
}

/* Focus ------------------------------------------------------------------- */

.focus {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-9) var(--space-4);
  overflow: hidden;
  background: var(--obsidian);
}

.focus__ring {
  position: absolute;
  width: min(72vw, 640px);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, transparent 58%, rgba(82, 103, 255, 0.08) 59%, rgba(122, 92, 255, 0.16) 70%, transparent 71%);
  animation: ringRotate 28s linear infinite;
  pointer-events: none;
}

.focus__ring::after {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1px solid rgba(82, 103, 255, 0.18);
}

.focus__inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.focus__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin-bottom: var(--space-5);
}

.focus__pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--electric);
  animation: statusPulse 2.2s ease-in-out infinite;
}

.focus__title {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 8vw, 8rem);
  line-height: 0.92;
  letter-spacing: -0.06em;
  font-weight: 700;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Final CTA --------------------------------------------------------------- */

.cta {
  position: relative;
  background: var(--gradient);
  padding: var(--space-9) var(--space-4);
  overflow: hidden;
  text-align: center;
}

.cta__pattern {
  position: absolute;
  inset: 0;
  opacity: 0.12;
  background-image:
    linear-gradient(rgba(244, 246, 250, 0.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 246, 250, 0.35) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at center, black 20%, transparent 75%);
  pointer-events: none;
}

.cta__inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
}

.cta__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 7rem);
  line-height: 0.92;
  letter-spacing: -0.055em;
  font-weight: 700;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--soft-white);
}

.cta__support {
  margin: var(--space-4) auto var(--space-5);
  max-width: 28ch;
  font-size: clamp(17px, 1.5vw, 20px);
  color: rgba(244, 246, 250, 0.88);
}

/* Footer ------------------------------------------------------------------ */

.footer {
  background: var(--obsidian);
  padding: var(--space-8) var(--space-4) var(--space-5);
}

.footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: var(--space-7);
  padding-bottom: var(--space-6);
}

.footer__logo {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: var(--space-3);
}

.footer__tagline {
  color: var(--muted);
  font-size: 17px;
  max-width: 24ch;
}

.footer__columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.footer__heading {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  margin-bottom: var(--space-3);
}

.footer__col ul {
  display: grid;
  gap: var(--space-2);
}

.footer__col a {
  color: var(--muted);
  font-size: 15px;
  transition: color 0.25s ease;
}

.footer__col a:hover {
  color: var(--electric);
}

.footer__bottom {
  max-width: var(--max);
  margin: 0 auto;
}

.footer__divider {
  height: 1px;
  background: var(--graphite);
  margin-bottom: var(--space-4);
}

.footer__copy {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.footer__indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--electric);
}

/* Animations -------------------------------------------------------------- */

@keyframes signalMove {
  0% {
    transform: translateX(-18%) rotate(-18deg);
    opacity: 0.35;
  }
  50% {
    transform: translateX(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateX(18%) rotate(18deg);
    opacity: 0.35;
  }
}

@keyframes corePulse {
  0%, 100% {
    box-shadow: 0 0 0 6px rgba(82, 103, 255, 0.12);
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    box-shadow: 0 0 0 14px rgba(82, 103, 255, 0.08);
    transform: translate(-50%, -50%) scale(1.08);
  }
}

@keyframes statusPulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(82, 103, 255, 0.45);
    opacity: 1;
  }
  50% {
    box-shadow: 0 0 0 8px rgba(82, 103, 255, 0);
    opacity: 0.75;
  }
}

@keyframes ringFloat {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.015); opacity: 0.85; }
}

@keyframes trustScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes lineSweep {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes ringRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes revealUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  animation: revealUp 1s var(--ease) both;
}

.reveal--delay-1 { animation-delay: 0.12s; }
.reveal--delay-2 { animation-delay: 0.24s; }
.reveal--delay-3 { animation-delay: 0.36s; }

/* Responsive -------------------------------------------------------------- */

@media (max-width: 1100px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .signal {
    max-width: 480px;
    margin: 0 auto;
  }

  .hero__support {
    max-width: 40ch;
  }

  .statement__content {
    max-width: 100%;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

@media (max-width: 900px) {
  .how__steps {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6) var(--space-4);
  }

  .how__steps::before {
    display: none;
  }

  .how__step {
    padding-top: 0;
    padding-left: var(--space-4);
    border-left: 1px solid rgba(82, 103, 255, 0.45);
  }

  .how__step::before {
    top: 6px;
    left: -7px;
  }

  .principle {
    grid-template-columns: auto 1fr;
    gap: var(--space-3);
  }

  .principle__arrow {
    display: none;
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: 72px;
  }

  body {
    font-size: 17px;
  }

  .nav__inner {
    padding: 0 var(--space-3);
  }

  .nav__menu-btn {
    display: inline-flex;
  }

  .nav__panel {
    position: fixed;
    inset: 0;
    background: rgba(8, 10, 15, 0.97);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-5);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
      opacity 0.35s ease,
      visibility 0.35s ease;
  }

  .nav__links {
    flex-direction: column;
    gap: var(--space-4);
  }

  .nav__links a {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--soft-white);
  }

  .nav__toggle:checked ~ .nav__panel {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav__toggle:checked + .nav__menu-btn {
    border-color: var(--electric);
    color: var(--electric);
  }

  .nav__toggle:checked + .nav__menu-btn .nav__menu-label {
    font-size: 0;
  }

  .nav__toggle:checked + .nav__menu-btn .nav__menu-label::before {
    content: "CLOSE";
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
  }

  .hero,
  .statement,
  .features,
  .how,
  .focus,
  .cta,
  .footer {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }

  .hero {
    padding-top: calc(var(--header-h) + var(--space-5));
    padding-bottom: var(--space-5);
    min-height: auto;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .btn--nav {
    width: auto;
  }

  .hero__scroll {
    margin-top: var(--space-5);
  }

  .statement {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .statement__inner {
    gap: var(--space-3);
  }

  .principle {
    padding: var(--space-5) var(--space-3);
  }

  .principle__number {
    font-size: clamp(2.5rem, 12vw, 3.5rem);
  }

  .features {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .features__title {
    margin-bottom: var(--space-6);
  }

  .features__composition {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    gap: var(--space-3);
  }

  .features__word--left,
  .features__word--right {
    text-align: center;
  }

  .features__connector {
    width: 2px;
    height: 72px;
  }

  .features__line {
    width: 2px;
    height: 100%;
    background: var(--gradient);
  }

  .features__line::after {
    animation: lineSweepY 3.8s ease-in-out infinite;
  }

  .how {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .how__steps {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .how__title {
    margin-bottom: var(--space-6);
  }

  .focus {
    min-height: 70vh;
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .cta {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .footer {
    padding-top: var(--space-7);
  }

  .footer__columns {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .signal__label {
    font-size: 9px;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: clamp(3.4rem, 16vw, 4.5rem);
  }

  .signal__label--tr,
  .signal__label--br {
    display: none;
  }
}

@keyframes lineSweepY {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

/* Reduced motion ---------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .trust__track {
    transform: none;
  }
}