:root {
  --bg: #090b0e;
  --bg-2: #101419;
  --panel: #151a20;
  --panel-2: #1a2027;
  --steel: #c9d0d6;
  --muted: #8f9aa4;
  --line: rgba(255, 255, 255, 0.12);
  --orange: #ff6a00;
  --orange-2: #ff9a2f;
  --cyan: #61d7d8;
  --white: #f8fafb;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
  --header-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.site-shell {
  min-height: 100vh;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(180deg, #090b0e 0%, #11161b 42%, #08090b 100%);
  background-size: 64px 64px, 64px 64px, auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 54px);
  border-bottom: 1px solid transparent;
  background: rgba(9, 11, 14, 0.76);
  backdrop-filter: blur(18px);
  transition: border-color 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(9, 11, 14, 0.92);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.brand img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.brand span {
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.93rem;
  font-weight: 700;
  transition: color 180ms ease, background 180ms ease;
}

.main-nav a:hover,
.main-nav a.is-active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.07);
}

.main-nav a[href="#download"] {
  color: #15100b;
  background: linear-gradient(135deg, var(--orange), var(--orange-2));
}

.main-nav a[href="#download"]:hover,
.main-nav a[href="#download"].is-active {
  color: #090b0e;
  background: linear-gradient(135deg, #ff7a1a, #ffc168);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--white);
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.section-panel {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.section-inner {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
}

.hero {
  min-height: 88vh;
  display: grid;
  align-items: center;
  padding: calc(var(--header-height) + 44px) 0 74px;
  isolation: isolate;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 34%;
  background: linear-gradient(180deg, rgba(9, 11, 14, 0), var(--bg));
  pointer-events: none;
}

.hero-visual {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.hero-visual img {
  position: absolute;
  right: max(-70px, -5vw);
  bottom: 2vh;
  width: min(700px, 72vw);
  opacity: 0.3;
  filter: drop-shadow(0 0 34px rgba(255, 106, 0, 0.22));
}

.weld-line {
  position: absolute;
  right: 12%;
  bottom: 24%;
  width: min(420px, 54vw);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--orange), #fff, var(--orange-2), transparent);
  box-shadow: 0 0 24px rgba(255, 106, 0, 0.9), 0 0 70px rgba(97, 215, 216, 0.26);
  transform: rotate(-14deg);
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin-left: clamp(18px, 7vw, 120px);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--orange-2);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  overflow-wrap: normal;
  word-break: normal;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.05;
  letter-spacing: 0;
}

h1 {
  max-width: 9ch;
  font-size: clamp(4.1rem, 12vw, 8.8rem);
  text-transform: uppercase;
  text-shadow: 0 16px 42px rgba(0, 0, 0, 0.65);
}

h2 {
  max-width: 15ch;
  font-size: clamp(2.2rem, 5vw, 4.5rem);
}

h3 {
  font-size: 1.12rem;
}

.hero-copy {
  max-width: 640px;
  margin: 22px 0 0;
  color: var(--steel);
  font-size: clamp(1.02rem, 2vw, 1.28rem);
}

.hero-actions,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  min-width: 154px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 800;
  line-height: 1.1;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
}

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

.button-primary {
  color: #100b06;
  background: linear-gradient(135deg, var(--orange), var(--orange-2));
  box-shadow: 0 18px 44px rgba(255, 106, 0, 0.28);
}

.button-ghost {
  color: var(--white);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.045);
}

.button-ghost:hover {
  border-color: rgba(97, 215, 216, 0.5);
  background: rgba(97, 215, 216, 0.09);
}

.button.is-disabled {
  color: rgba(248, 250, 251, 0.55);
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.035);
  cursor: not-allowed;
  transform: none;
}

.intro-band,
.process-band {
  background: rgba(255, 255, 255, 0.025);
}

.split-layout,
.download-layout,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 1fr);
  gap: clamp(32px, 7vw, 88px);
  align-items: start;
  padding: clamp(76px, 10vw, 120px) 0;
}

.download-layout {
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.42fr);
  align-items: center;
}

.prose,
.download-copy,
.feature-block p,
.timeline-item p {
  color: var(--muted);
}

.prose p {
  margin: 0 0 18px;
}

.prose p:last-child {
  margin-bottom: 0;
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.impact-card {
  position: relative;
  min-height: 176px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.025));
  background-size: 26px 26px, 26px 26px, auto;
  overflow: hidden;
}

.impact-label {
  display: block;
  margin-bottom: 8px;
  color: var(--orange-2);
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

.impact-card strong {
  display: block;
  color: var(--white);
  font-size: 1.02rem;
  line-height: 1.25;
}

.impact-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.section-heading {
  padding: clamp(76px, 10vw, 110px) 0 34px;
}

.feature-showcase {
  display: grid;
  gap: 18px;
  padding-bottom: clamp(76px, 10vw, 116px);
}

.feature-block,
.timeline-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.065), rgba(255, 255, 255, 0.028));
  box-shadow: var(--shadow);
}

.feature-block {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(280px, 1fr);
  gap: clamp(20px, 4vw, 46px);
  align-items: stretch;
  min-height: 300px;
  padding: clamp(18px, 3vw, 28px);
}

.feature-block:nth-child(even) .feature-copy {
  order: 2;
}

.feature-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 540px;
}

.feature-number {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--orange-2);
  font-size: 0.86rem;
  font-weight: 900;
}

.feature-block h3 {
  font-size: clamp(1.45rem, 3vw, 2.35rem);
}

.feature-block p {
  margin: 16px 0 0;
  font-size: 1.02rem;
}

.feature-media {
  display: grid;
  place-items: center;
  min-height: 244px;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 8px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 70% 24%, rgba(255, 106, 0, 0.28), transparent 26%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  background-size: 34px 34px, 34px 34px, auto, auto;
  overflow: hidden;
}

.feature-media img {
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: contain;
  border-radius: 7px;
  background: rgba(0, 0, 0, 0.32);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding-bottom: clamp(76px, 10vw, 116px);
}

.timeline-item {
  min-height: 228px;
  padding: 28px;
}

.timeline-item span {
  display: inline-flex;
  margin-bottom: 30px;
  color: var(--cyan);
  font-size: 0.88rem;
  font-weight: 900;
}

.timeline-item p {
  margin: 12px 0 0;
}

.download-band {
  background:
    linear-gradient(115deg, rgba(255, 106, 0, 0.12), transparent 34%),
    linear-gradient(250deg, rgba(97, 215, 216, 0.1), transparent 36%),
    var(--bg-2);
}

.download-copy {
  max-width: 680px;
  margin: 20px 0 0;
  font-size: 1.04rem;
}

.download-layout .download-actions {
  align-content: center;
  display: grid;
  gap: 14px;
  justify-items: stretch;
  margin-top: 0;
}

.download-layout .button {
  width: 100%;
}

.contact-band {
  background: #08090b;
}

.contact-layout .prose,
.contact-layout-simple .prose {
  max-width: 620px;
}

.contact-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.contact-list a {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.contact-list a:hover {
  border-color: rgba(255, 106, 0, 0.55);
  background: rgba(255, 106, 0, 0.08);
  transform: translateY(-2px);
}

.contact-list strong {
  color: var(--white);
}

.contact-list span {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.site-footer {
  background: #050607;
}

.footer-inner {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-inner a {
  color: var(--steel);
  font-weight: 800;
}

@media (max-width: 980px) {
  .feature-block {
    grid-template-columns: 1fr;
  }

  .feature-block:nth-child(even) .feature-copy {
    order: 0;
  }

  .split-layout,
  .download-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .impact-grid {
    grid-template-columns: 1fr;
  }

  h2 {
    max-width: 18ch;
  }
}

@media (max-width: 760px) {
  :root {
    --header-height: 68px;
  }

  .site-header {
    padding: 10px 18px;
  }

  .brand img {
    width: 44px;
    height: 44px;
  }

  .brand span {
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    inset: var(--header-height) 14px auto 14px;
    display: grid;
    gap: 8px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(9, 11, 14, 0.98);
    box-shadow: var(--shadow);
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    transition: transform 180ms ease, opacity 180ms ease, visibility 180ms ease;
  }

  .nav-open .main-nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav a {
    justify-content: center;
    min-height: 48px;
  }

  .hero {
    min-height: 86vh;
    padding-bottom: 58px;
  }

  .hero-inner {
    margin-left: auto;
  }

  .hero-visual img {
    right: -120px;
    bottom: 4vh;
    width: 680px;
    max-width: none;
    opacity: 0.18;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(3.2rem, 17vw, 4.5rem);
  }

  .timeline {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    min-height: auto;
  }

  .feature-media {
    min-height: 210px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 22px 0;
  }
}

@media (max-width: 430px) {
  .section-inner {
    width: min(100% - 28px, 1120px);
  }

  .button {
    width: 100%;
  }

  .hero-actions,
  .download-actions {
    width: 100%;
  }
}