:root {
  --brand-950: #000f0a;
  --brand-900: #003d24;
  --brand-800: #005c35;
  --brand-700: #007746;
  --brand-500: #2a9a5f;
  --brand-300: #7dceb0;
  --brand-100: #dff3e8;
  --ink: #0b1611;
  --ink-muted: rgba(11, 22, 17, 0.64);
  --paper: #eef4f0;
  --white: #ffffff;
  --line: color-mix(in srgb, var(--brand-900) 12%, transparent);
  --glow: rgba(70, 220, 150, 0.55);
  --radius: 20px;
  --max: 1120px;
  --font-display: "Syne", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --font-body: "Manrope", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --header-h: 68px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: clip;
  width: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .hero__felt img,
  .metric-bar__fill,
  .stage-rail__pulse,
  .hero__brand .char,
  [data-enter],
  .hero__icon-ring,
  .hero__axis-beam,
  .hero__axis-core,
  .metric-panel__orb,
  .btn--glow::after {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--brand-950);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  width: 100%;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

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

a {
  color: inherit;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 80;
  opacity: 0.03;
  /* Avoid mix-blend over scrolling layers — causes felt flicker on some GPUs. */
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 100;
  padding: 8px 12px;
  background: var(--white);
  border-radius: 8px;
}

.skip-link:focus {
  top: 12px;
}

.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;
}

/* —— Header —— */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  transition: background 320ms var(--ease-out), border-color 320ms var(--ease-out),
    backdrop-filter 320ms var(--ease-out);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: color-mix(in srgb, var(--brand-950) 78%, transparent);
  backdrop-filter: blur(18px) saturate(1.35);
  border-bottom-color: color-mix(in srgb, var(--white) 8%, transparent);
}

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  min-height: var(--header-h);
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--white);
}

.brand__mark {
  border-radius: 10px;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--white) 18%, transparent);
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
}

.site-header .btn--ghost {
  margin-left: auto;
  color: var(--white);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 14px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 180ms var(--ease-out), background 180ms ease, border-color 180ms ease,
    box-shadow 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--small {
  min-height: 40px;
  padding: 0 16px;
  font-size: 0.9rem;
}

.btn--primary {
  background: linear-gradient(180deg, #24b56f 0%, var(--brand-700) 100%);
  color: var(--white);
  box-shadow: 0 10px 28px rgba(0, 80, 45, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.btn--primary:hover {
  background: linear-gradient(180deg, #2fc87d 0%, var(--brand-800) 100%);
}

.btn--glow::after {
  content: "";
  position: absolute;
  inset: -40% auto auto -30%;
  width: 40%;
  height: 180%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.28), transparent);
  transform: rotate(18deg) translateX(-120%);
  animation: btn-sheen 3.6s var(--ease-out) infinite;
}

@keyframes btn-sheen {
  0%,
  55% {
    transform: rotate(18deg) translateX(-140%);
  }
  100% {
    transform: rotate(18deg) translateX(320%);
  }
}

.btn--ghost {
  background: color-mix(in srgb, var(--white) 8%, transparent);
  border-color: color-mix(in srgb, var(--white) 24%, transparent);
  color: var(--white);
  backdrop-filter: blur(8px);
}

.btn--ghost:hover {
  background: color-mix(in srgb, var(--white) 14%, transparent);
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: center;
  overflow: clip;
  color: var(--white);
  background: #000805;
  --hero-fade: 1;
  --axis-y: 34%;
  --axis-inset: 6%;
  --impact-x: 78%;
  --impact-y: 36%;
}

.hero__scene {
  position: absolute;
  inset: 0;
  /* Keep the material layer stable — no scroll-driven scale (causes paint glitches). */
  opacity: 1;
  contain: paint;
  isolation: isolate;
  transform: translateZ(0);
  backface-visibility: hidden;
}

.hero__felt {
  position: absolute;
  inset: -4%;
  transform: translateZ(0);
  backface-visibility: hidden;
  /* Do not animate/transform the felt layer — Safari/Chrome glitch when scrolling. */
}

.hero__felt img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.06) translateZ(0);
  filter: saturate(1.12) contrast(1.06) brightness(0.92);
  backface-visibility: hidden;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
}

.hero__veil {
  position: absolute;
  inset: 0;
  /* Static gradients only — pointer-driven CSS vars forced full-layer repaints/flicker. */
  background:
    radial-gradient(ellipse 60% 48% at 50% 36%, rgba(48, 180, 110, 0.22), transparent 58%),
    radial-gradient(90% 70% at 80% 10%, rgba(20, 100, 60, 0.32), transparent 50%),
    linear-gradient(180deg, rgba(0, 12, 8, 0.25) 0%, rgba(0, 10, 7, 0.45) 45%, rgba(0, 8, 5, 0.92) 100%);
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(color-mix(in srgb, var(--white) 6%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--white) 6%, transparent) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(70% 60% at 50% 36%, black 12%, transparent 72%);
  opacity: 0.4;
  pointer-events: none;
  transform: translateZ(0);
}

.hero__spotlight {
  position: absolute;
  width: min(72vw, 720px);
  aspect-ratio: 1;
  left: 0;
  top: 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(120, 255, 190, 0.16), rgba(40, 160, 100, 0.05) 42%, transparent 68%);
  mix-blend-mode: screen;
  pointer-events: none;
  will-change: transform;
  transform: translate3d(-50%, -50%, 0);
  opacity: 0.9;
}

.hero__axis {
  position: absolute;
  left: var(--axis-inset);
  right: var(--axis-inset);
  top: var(--axis-y);
  height: 2px;
  pointer-events: none;
}

.hero__axis-beam,
.hero__axis-core {
  position: absolute;
  inset: 0;
  border-radius: 999px;
}

.hero__axis-beam {
  background: linear-gradient(90deg, transparent, rgba(125, 230, 180, 0.55), transparent);
  filter: blur(6px);
  animation: axis-pulse 2.8s ease-in-out infinite;
}

.hero__axis-core {
  background: linear-gradient(90deg, transparent 5%, rgba(255, 255, 255, 0.85) 50%, transparent 95%);
  height: 1px;
  top: 0.5px;
  box-shadow: 0 0 18px rgba(140, 255, 200, 0.65);
  transform-origin: left center;
  animation: axis-draw 2.2s var(--ease-out) 0.4s both;
}

@keyframes axis-draw {
  from {
    transform: scaleX(0);
    opacity: 0;
  }
  to {
    transform: scaleX(1);
    opacity: 1;
  }
}

@keyframes axis-pulse {
  0%,
  100% {
    opacity: 0.45;
    transform: scaleY(1);
  }
  50% {
    opacity: 1;
    transform: scaleY(1.8);
  }
}

.hero__fx {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero__impact {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at var(--impact-x) var(--impact-y),
    rgba(180, 255, 220, 0.35),
    transparent 35%
  );
  opacity: 0;
  pointer-events: none;
  mix-blend-mode: screen;
}

.hero__impact.is-flash {
  animation: impact-flash 0.7s var(--ease-out);
}

@keyframes impact-flash {
  0% {
    opacity: 0;
  }
  20% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: calc(var(--header-h) + 24px) 20px 48px;
  opacity: var(--hero-fade);
}

.hero__eyebrow {
  margin: 0 0 22px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brand-300);
  text-shadow: 0 0 24px rgba(125, 206, 176, 0.35);
}

.hero__brand-row {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 22px;
}

.hero__icon-wrap {
  position: relative;
  display: grid;
  place-items: center;
  width: 84px;
  height: 84px;
  flex: none;
}

.hero__icon {
  position: relative;
  z-index: 1;
  border-radius: 22px;
  box-shadow:
    0 18px 50px rgba(0, 0, 0, 0.45),
    0 0 0 1px color-mix(in srgb, var(--white) 18%, transparent),
    0 0 40px var(--glow);
}

.hero__icon-ring {
  position: absolute;
  inset: -10px;
  border-radius: 28px;
  border: 1px solid rgba(140, 255, 200, 0.35);
  animation: ring-spin 6s linear infinite;
  mask-image: conic-gradient(from 0deg, transparent 0 55%, black 70% 100%);
}

@keyframes ring-spin {
  to {
    transform: rotate(360deg);
  }
}

.hero__brand {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3.4rem, 12vw, 6.4rem);
  letter-spacing: -0.055em;
  line-height: 0.9;
  text-shadow: 0 14px 50px rgba(0, 0, 0, 0.45);
}

.hero__brand .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.55em) rotateX(35deg);
  filter: blur(6px);
  animation: char-in 0.9s var(--ease-out) forwards;
}

@keyframes char-in {
  to {
    opacity: 1;
    transform: none;
    filter: none;
  }
}

.hero__tagline {
  margin: 0 0 16px;
  max-width: 14ch;
  font-family: var(--font-display);
  font-weight: 650;
  font-size: clamp(1.55rem, 3.6vw, 2.4rem);
  line-height: 1.18;
  letter-spacing: -0.03em;
}

.hero__support {
  margin: 0 0 30px;
  max-width: 34rem;
  color: color-mix(in srgb, var(--white) 80%, transparent);
  font-size: 1.06rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}

.hero__meta {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 650;
  letter-spacing: 0.02em;
  color: color-mix(in srgb, var(--white) 55%, transparent);
}

[data-enter] {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(8px);
  animation: enter-up 1s var(--ease-out) forwards;
}

[data-enter]:nth-of-type(1) {
  animation-delay: 0.15s;
}

.hero__brand-row[data-enter] {
  animation-delay: 0.25s;
}

.hero__tagline[data-enter] {
  animation-delay: 0.55s;
}

.hero__support[data-enter] {
  animation-delay: 0.7s;
}

.hero__actions[data-enter] {
  animation-delay: 0.85s;
}

.hero__meta[data-enter] {
  animation-delay: 1s;
}

@keyframes enter-up {
  to {
    opacity: 1;
    transform: none;
    filter: none;
  }
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 22px;
  z-index: 2;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: color-mix(in srgb, var(--white) 55%, transparent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  pointer-events: none;
  opacity: var(--hero-fade);
}

.hero__scroll-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--white) 70%, transparent));
  animation: scroll-line 1.8s var(--ease-out) infinite;
}

@keyframes scroll-line {
  0% {
    transform: scaleY(0.3);
    transform-origin: top;
    opacity: 0;
  }
  40% {
    opacity: 1;
  }
  100% {
    transform: scaleY(1);
    transform-origin: top;
    opacity: 0;
  }
}

/* —— Sections —— */
.section {
  padding: 104px 0;
  position: relative;
  width: 100%;
  overflow-x: clip;
  isolation: isolate;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

.section__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
  position: relative;
  z-index: 1;
}

.section__glow {
  position: absolute;
  inset: auto 0 20% auto;
  width: min(55%, 420px);
  height: 70%;
  background: radial-gradient(circle, rgba(0, 119, 70, 0.18), transparent 70%);
  pointer-events: none;
}

.section--dark {
  background-color: #04150e;
  background-image:
    radial-gradient(ellipse 90% 70% at 50% -10%, rgba(0, 119, 70, 0.2), transparent 60%),
    linear-gradient(180deg, #04150e 0%, #071a12 100%);
  color: var(--white);
}

.section--ink {
  background-color: #04140d;
  background-image:
    radial-gradient(ellipse 90% 70% at 50% -10%, rgba(0, 119, 70, 0.18), transparent 60%),
    linear-gradient(180deg, #04140d 0%, #020c08 100%);
  color: var(--white);
}

.section--felt {
  position: relative;
  color: var(--white);
  background-color: #00140c;
  background-image:
    linear-gradient(180deg, rgba(0, 28, 18, 0.88), rgba(0, 16, 10, 0.94)),
    url("assets/felt.jpg");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  overflow: clip;
  transform: translateZ(0);
  backface-visibility: hidden;
  contain: paint;
}

.section--felt::before {
  content: "";
  position: absolute;
  inset: -30% 20% auto;
  width: auto;
  height: 70%;
  margin: 0 auto;
  background: radial-gradient(circle, rgba(42, 154, 95, 0.28), transparent 70%);
  pointer-events: none;
}

.section--cta {
  background-color: var(--brand-100);
  background-image:
    radial-gradient(ellipse 100% 80% at 50% 0%, rgba(42, 154, 95, 0.16), transparent 55%),
    linear-gradient(180deg, var(--brand-100), #cfe8da);
  color: var(--ink);
}

.section__kicker {
  margin: 0 0 12px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand-700);
}

.section__kicker--on-dark {
  color: var(--brand-300);
}

.section__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 750;
  font-size: clamp(2rem, 4.2vw, 3.1rem);
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.section__title--on-dark {
  color: var(--white);
}

.section__lead {
  margin: 0 0 44px;
  max-width: 36rem;
  color: var(--ink-muted);
  font-size: 1.08rem;
}

.section__lead--on-dark {
  color: color-mix(in srgb, var(--white) 70%, transparent);
}

.flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

@media (min-width: 900px) {
  .flow {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
}

.flow__item {
  position: relative;
  padding: 28px 24px;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--white) 5%, transparent);
  border: 1px solid color-mix(in srgb, var(--white) 10%, transparent);
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: transform 280ms var(--ease-out), border-color 280ms ease, box-shadow 280ms ease;
}

.flow__item::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: linear-gradient(180deg, var(--brand-300), transparent);
  opacity: 0;
  transition: opacity 280ms ease;
}

.flow__item:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--brand-300) 35%, transparent);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.28);
}

.flow__item:hover::before {
  opacity: 1;
}

.flow__step {
  display: inline-block;
  margin-bottom: 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--brand-300);
}

.flow__item h3,
.stage-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.flow__item p,
.stage-card p {
  margin: 0;
  color: color-mix(in srgb, var(--white) 68%, transparent);
}

.stage-rail {
  position: relative;
  margin-bottom: 28px;
  height: 4px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--white) 12%, transparent);
  overflow: visible;
}

.stage-rail__pulse {
  position: absolute;
  inset: 0 auto 0 0;
  width: 38%;
  border-radius: inherit;
  background: linear-gradient(90deg, transparent, var(--brand-300), #fff);
  box-shadow: 0 0 18px rgba(140, 255, 200, 0.55);
  animation: rail-run 2.8s var(--ease-out) infinite;
}

.stage-rail__nodes {
  position: absolute;
  inset: -5px 0 auto;
  display: flex;
  justify-content: space-between;
  pointer-events: none;
}

.stage-rail__nodes i {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #0a1f16;
  border: 2px solid var(--brand-300);
  box-shadow: 0 0 12px rgba(125, 206, 176, 0.55);
}

@keyframes rail-run {
  0% {
    transform: translateX(-20%);
    opacity: 0.35;
  }
  40% {
    opacity: 1;
  }
  100% {
    transform: translateX(280%);
    opacity: 0.2;
  }
}

.stages {
  display: grid;
  gap: 14px;
}

@media (min-width: 900px) {
  .stages {
    grid-template-columns: repeat(3, 1fr);
  }
}

.stage-card {
  padding: 26px;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--white) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--white) 14%, transparent);
  backdrop-filter: blur(14px);
  transition: background 220ms ease, transform 220ms var(--ease-out), box-shadow 220ms ease;
}

.stage-card:hover {
  background: color-mix(in srgb, var(--white) 14%, transparent);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.stage-card__index {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--brand-300);
}

.stage-card p {
  color: color-mix(in srgb, var(--white) 76%, transparent);
}

.feature-grid {
  display: grid;
  gap: 28px;
}

@media (min-width: 960px) {
  .feature-grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 48px;
  }
}

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.feature-list li {
  display: grid;
  gap: 4px;
  padding: 18px 20px;
  border-radius: 16px;
  background: color-mix(in srgb, var(--white) 72%, transparent);
  border: 1px solid var(--line);
  transition: transform 220ms var(--ease-out), border-color 220ms ease;
}

.feature-list--dark li {
  background: color-mix(in srgb, var(--white) 5%, transparent);
  border-color: color-mix(in srgb, var(--white) 10%, transparent);
}

.feature-list li:hover {
  transform: translateX(4px);
  border-color: color-mix(in srgb, var(--brand-300) 40%, transparent);
}

.feature-list strong {
  font-family: var(--font-display);
  font-size: 1.12rem;
  letter-spacing: -0.02em;
}

.feature-list span {
  color: var(--ink-muted);
  font-size: 0.96rem;
}

.feature-list--dark span {
  color: color-mix(in srgb, var(--white) 65%, transparent);
}

.metric-panel {
  position: relative;
  padding: 28px;
  border-radius: 24px;
  background:
    radial-gradient(80% 70% at 100% 0%, rgba(42, 154, 95, 0.28), transparent 55%),
    linear-gradient(165deg, #0c271c, #04140e);
  color: var(--white);
  border: 1px solid color-mix(in srgb, var(--white) 12%, transparent);
  box-shadow:
    0 28px 60px rgba(0, 30, 18, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.metric-panel__orb {
  position: absolute;
  width: 180px;
  height: 180px;
  right: -40px;
  top: -50px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(90, 230, 160, 0.28), transparent 68%);
  animation: orb-breathe 4s ease-in-out infinite;
}

@keyframes orb-breathe {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.18);
    opacity: 1;
  }
}

.metric-panel__label {
  margin: 0 0 18px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brand-300);
}

.metric-row {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.metric-row:last-child {
  margin-bottom: 0;
}

.metric-row__top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.92rem;
  font-weight: 650;
}

.metric-row__value {
  font-variant-numeric: tabular-nums;
  color: color-mix(in srgb, var(--white) 78%, transparent);
}

.metric-bar {
  height: 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--white) 10%, transparent);
  overflow: hidden;
}

.metric-bar__fill {
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--brand-700), #6ed9a4);
  box-shadow: 0 0 16px rgba(110, 217, 164, 0.45);
  transition: width 1.15s var(--ease-out);
}

.metric-panel.is-live .metric-bar__fill[data-width="78"] {
  width: 78%;
}

.metric-panel.is-live .metric-bar__fill[data-width="64"] {
  width: 64%;
}

.metric-panel.is-live .metric-bar__fill[data-width="91"] {
  width: 91%;
}

.metric-bar__fill--warn {
  background: linear-gradient(90deg, #b7791f, #e0b15a);
  box-shadow: 0 0 16px rgba(224, 177, 90, 0.35);
}

.section--cta .section__lead a {
  color: var(--brand-800);
  font-weight: 700;
  text-underline-offset: 3px;
}

.waitlist {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 540px;
}

.waitlist input {
  flex: 1 1 240px;
  min-height: 50px;
  padding: 0 18px;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--brand-900) 16%, transparent);
  background: var(--white);
  font: inherit;
  box-shadow: 0 10px 28px rgba(0, 40, 24, 0.06);
}

.waitlist input:focus-visible {
  outline: 2px solid var(--brand-700);
  outline-offset: 2px;
}

.waitlist__note {
  min-height: 1.4em;
  margin: 14px 0 0;
  color: var(--brand-800);
  font-weight: 700;
}

.site-footer {
  padding: 0;
  width: 100%;
  overflow-x: clip;
  background-color: #04140e;
  background-image:
    radial-gradient(ellipse 90% 70% at 50% 0%, rgba(0, 119, 70, 0.12), transparent 55%),
    linear-gradient(180deg, #04140e 0%, #000805 100%);
  color: color-mix(in srgb, var(--white) 72%, transparent);
  border-top: 1px solid color-mix(in srgb, var(--white) 8%, transparent);
}

.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px 20px 28px;
  display: grid;
  gap: 40px;
}

@media (min-width: 900px) {
  .site-footer__inner {
    grid-template-columns: 1.35fr 1fr 1fr 1.1fr;
    gap: 32px 40px;
    align-items: start;
  }
}

.site-footer__brand {
  display: grid;
  gap: 14px;
  max-width: 22rem;
}

.site-footer__brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--white);
  width: fit-content;
}

.site-footer__brand-link img {
  border-radius: 10px;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--white) 14%, transparent);
}

.site-footer__brand-name {
  font-family: var(--font-display);
  font-weight: 750;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
}

.site-footer__brand-text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: color-mix(in srgb, var(--white) 58%, transparent);
}

.site-footer__col {
  display: grid;
  gap: 12px;
  align-content: start;
}

.site-footer__label {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brand-300);
}

.site-footer__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.site-footer__links a {
  text-decoration: none;
  color: color-mix(in srgb, var(--white) 72%, transparent);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 160ms ease;
}

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

.site-footer__mail {
  word-break: break-all;
}

.site-footer__bar {
  border-top: 1px solid color-mix(in srgb, var(--white) 8%, transparent);
}

.site-footer__bar-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 20px 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: color-mix(in srgb, var(--white) 48%, transparent);
}

.site-footer__bar-inner p {
  margin: 0;
}

.site-footer__bar a {
  color: inherit;
  text-decoration: none;
  transition: color 160ms ease;
}

.site-footer__bar a:hover,
.site-footer__bar a:focus-visible {
  color: color-mix(in srgb, var(--white) 78%, transparent);
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  filter: blur(6px);
  transition: opacity 900ms var(--ease-out), transform 900ms var(--ease-out), filter 900ms var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
  filter: none;
}

.reveal-delay-1 {
  transition-delay: 90ms;
}

.reveal-delay-2 {
  transition-delay: 180ms;
}

.reveal-delay-3 {
  transition-delay: 270ms;
}

/* —— Legal pages —— */
.page-shell {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  color: var(--ink);
}

.page-shell .site-header {
  position: sticky;
  background: color-mix(in srgb, var(--brand-950) 88%, transparent);
  backdrop-filter: blur(16px);
  border-bottom-color: color-mix(in srgb, var(--white) 10%, transparent);
}

.legal {
  flex: 1;
  width: min(860px, calc(100% - 40px));
  margin: 28px auto 64px;
  padding: 36px 36px 44px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 18px 50px rgba(0, 30, 18, 0.06);
}

.legal h1 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: -0.03em;
}

.legal h2 {
  margin: 32px 0 10px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.legal .meta {
  margin: 0 0 24px;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.legal p,
.legal ul {
  margin: 10px 0;
}

.legal ul {
  padding-left: 22px;
}

.legal a {
  color: var(--brand-700);
}

.legal .notice {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--brand-100);
  color: var(--ink-muted);
}

.legal-entity {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

@media (max-width: 640px) {
  .legal {
    width: min(100% - 20px, 860px);
    margin: 16px auto 40px;
    padding: 22px 20px 28px;
  }
}

/* —— Mobile / narrow screens —— */
@media (max-width: 720px) {
  :root {
    --header-h: 58px;
  }

  .site-header {
    padding-top: env(safe-area-inset-top, 0px);
  }

  .site-header__inner {
    min-height: var(--header-h);
    padding-left: max(14px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
    gap: 8px;
  }

  .brand__name {
    font-size: 1.05rem;
  }

  .site-header .btn--small {
    margin-left: auto;
    min-height: 34px;
    padding: 0 12px;
    font-size: 0.8rem;
    white-space: nowrap;
  }

  .hero {
    /* 内容驱动高度：不再强制 100dvh，消除首屏下方的人为留白，下一节自然衔接。 */
    min-height: auto;
    align-items: stretch;
    --axis-y: 22%;
    --axis-inset: 5%;
  }

  .hero__scene {
    transform: translateZ(0);
  }

  .hero__axis {
    height: 1.5px;
  }

  .hero__axis-core {
    height: 1px;
    top: 0.25px;
  }

  .hero__spotlight {
    width: min(100%, 420px);
    opacity: 0.85;
  }

  .hero__grid {
    background-size: 44px 44px;
    opacity: 0.28;
  }

  .hero__felt img {
    transform: scale(1.04) translateZ(0);
  }

  .hero__content {
    display: flex;
    flex-direction: column;
    /* 跟随 Hero 内容高度，避免占满整屏后下方留白。 */
    justify-content: center;
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    padding:
      calc(var(--header-h) + env(safe-area-inset-top, 0px) + 10px)
      max(16px, env(safe-area-inset-right))
      calc(20px + env(safe-area-inset-bottom, 0px))
      max(16px, env(safe-area-inset-left));
  }

  .hero__scroll {
    display: none;
  }

  .hero__eyebrow {
    margin-bottom: 10px;
    letter-spacing: 0.16em;
    font-size: 0.72rem;
  }

  .hero__brand-row {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
  }

  .hero__icon-wrap {
    width: 48px;
    height: 48px;
  }

  .hero__icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
  }

  .hero__icon-ring {
    inset: -6px;
    border-radius: 18px;
  }

  .hero__brand {
    font-size: clamp(2.4rem, 11vw, 3.1rem);
    line-height: 0.95;
    max-width: 100%;
  }

  .hero__brand .char {
    /* Prevent letter animation from causing horizontal overflow */
    transform: translateY(0.4em);
  }

  .hero__tagline {
    max-width: none;
    font-size: clamp(1.2rem, 5.4vw, 1.55rem);
    margin-bottom: 10px;
  }

  .hero__support {
    margin-bottom: 18px;
    font-size: 0.95rem;
    line-height: 1.5;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-bottom: 12px;
  }

  .hero__actions .btn {
    width: 100%;
    min-height: 46px;
  }

  .hero__meta {
    font-size: 0.78rem;
    line-height: 1.4;
  }

  .section {
    padding: 64px 0;
  }

  .section__inner {
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }

  .section__glow,
  .section--felt::before {
    width: 100%;
    inset: -20% 0 auto;
    left: 0;
    right: 0;
  }

  .section--dark,
  .section--ink,
  .section--cta {
    /* Solid fallback + centered wash — no left/right color blocks on mobile */
    background-image: linear-gradient(180deg, rgba(0, 119, 70, 0.1), transparent 42%),
      linear-gradient(180deg, var(--section-from, #04150e), var(--section-to, #071a12));
  }

  .section--dark {
    --section-from: #04150e;
    --section-to: #071a12;
  }

  .section--ink {
    --section-from: #04140d;
    --section-to: #020c08;
  }

  .section--cta {
    --section-from: var(--brand-100);
    --section-to: #cfe8da;
    background-image: linear-gradient(180deg, rgba(42, 154, 95, 0.12), transparent 40%),
      linear-gradient(180deg, var(--section-from), var(--section-to));
  }

  .section--felt {
    background-size: cover;
    background-position: center;
  }

  .section__title {
    font-size: clamp(1.7rem, 7vw, 2.2rem);
  }

  .section__lead {
    margin-bottom: 28px;
    font-size: 1rem;
  }

  .flow__item,
  .stage-card,
  .feature-list li {
    padding: 20px 18px;
  }

  .stage-rail {
    margin-bottom: 20px;
  }

  .stage-rail__nodes i {
    width: 12px;
    height: 12px;
  }

  .metric-panel {
    padding: 22px 18px;
  }

  .metric-row__top {
    font-size: 0.88rem;
    gap: 8px;
  }

  .waitlist {
    flex-direction: column;
    align-items: stretch;
    max-width: none;
  }

  .waitlist input,
  .waitlist .btn {
    width: 100%;
    flex: none;
    /* Prevent iOS Safari zoom-on-focus */
    font-size: 16px;
  }

  .site-footer__inner {
    padding: 44px max(16px, env(safe-area-inset-left)) 24px max(16px, env(safe-area-inset-right));
    gap: 28px;
  }

  .site-footer__bar-inner {
    padding: 16px max(16px, env(safe-area-inset-left)) calc(24px + env(safe-area-inset-bottom, 0px))
      max(16px, env(safe-area-inset-right));
    flex-direction: column;
    align-items: flex-start;
  }

  .page-shell .site-header__inner {
    flex-wrap: wrap;
  }

  .page-shell .site-nav {
    display: none;
  }
}

/* Very small phones */
@media (max-width: 380px) {
  .brand__mark {
    width: 28px;
    height: 28px;
  }

  .hero__brand {
    font-size: 2.35rem;
  }

  .hero__tagline {
    font-size: 1.2rem;
  }
}

/* Short landscape / compact height */
@media (max-height: 520px) and (orientation: landscape) {
  .hero {
    min-height: auto;
  }

  .hero__content {
    justify-content: center;
    padding-top: calc(var(--header-h) + 16px);
    padding-bottom: 24px;
  }

  .hero__support {
    display: none;
  }

  .hero__meta {
    display: none;
  }
}