:root {
  color-scheme: dark;
  --bg: #0d1218;
  --panel: #151c24;
  --panel-2: #1d2630;
  --ink: #f5f8ff;
  --muted: #a6b8c9;
  --line: #2f3b49;
  --purple: #7364e8;
  --purple-2: #8e6cff;
  --cyan: #4ecbff;
  --green: #68e294;
  --red: #ff5f7d;
  --yellow: #ffd35a;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

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

a {
  color: inherit;
}

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px clamp(18px, 4vw, 54px);
  background: rgba(13, 18, 24, 0.88);
  border-bottom: 1px solid rgba(115, 100, 232, 0.28);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 840;
  text-decoration: none;
}

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 38% 40%, #ffffff 0 23%, transparent 24%),
    conic-gradient(from 210deg, var(--purple), var(--cyan), var(--purple));
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.18), 0 0 22px rgba(142, 108, 255, 0.34);
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 3vw, 30px);
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 760;
}

nav a {
  text-decoration: none;
}

nav a:hover {
  color: var(--cyan);
}

.help-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.help-link span {
  padding: 3px 7px;
  border: 1px solid rgba(104, 226, 148, 0.42);
  border-radius: 999px;
  color: var(--green);
  font-size: 0.72rem;
  font-weight: 820;
  white-space: nowrap;
}

.support-nav-link {
  padding: 5px 9px;
  border: 1px solid rgba(255, 211, 90, 0.48);
  border-radius: 999px;
  color: var(--yellow);
  background: rgba(255, 211, 90, 0.08);
  white-space: nowrap;
}

.section-shell {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  position: relative;
  min-height: 88vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 112px clamp(20px, 5vw, 72px) 78px;
  background: #111820;
}

.hero-media,
.hero-wash {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media {
  object-fit: cover;
  object-position: center;
  filter: saturate(0.96) contrast(1.02);
}

.hero-wash {
  background:
    linear-gradient(90deg, rgba(13, 18, 24, 0.98) 0%, rgba(13, 18, 24, 0.88) 38%, rgba(13, 18, 24, 0.42) 74%),
    linear-gradient(180deg, rgba(13, 18, 24, 0.2), rgba(13, 18, 24, 0.94));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 14ch;
  margin: 0;
  font-size: clamp(3.15rem, 5.6rem, 5.6rem);
  line-height: 0.96;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 3rem, 3rem);
  line-height: 1.08;
}

h3 {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.25;
}

.hero-copy {
  max-width: 660px;
  margin: 24px 0 0;
  color: #d6e1ee;
  font-size: 1.15rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.support-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  max-width: 700px;
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 211, 90, 0.38);
  border-radius: 8px;
  background: rgba(255, 211, 90, 0.08);
}

.support-note p {
  flex: 1 1 310px;
  margin: 0;
  color: #f4dfab;
  font-size: 0.98rem;
}

.button.support-button {
  color: #12110a;
  background: var(--yellow);
  border-color: var(--yellow);
}

.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  color: #081016;
  background: var(--green);
  border-color: var(--green);
}

.button.secondary {
  color: var(--ink);
  background: rgba(29, 38, 48, 0.78);
  border-color: rgba(115, 100, 232, 0.65);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.28);
}

.band {
  background: #111820;
  border-block: 1px solid var(--line);
}

.compact-section {
  padding: clamp(46px, 7vw, 76px) 0;
}

.compact-grid,
.closing-grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.8fr) minmax(300px, 1.2fr);
  gap: clamp(28px, 5vw, 58px);
  align-items: start;
}

.compact-copy p,
.closing-grid p,
.copy-block p,
.section-heading p {
  color: var(--muted);
  font-size: 1.04rem;
}

.feature-section,
.macro-section,
.closing-section {
  padding: clamp(64px, 9vw, 104px) 0;
}

.image-pair {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(22px, 4vw, 42px);
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.86fr) minmax(360px, 1.14fr);
  gap: clamp(30px, 5vw, 64px);
  align-items: center;
}

.split-layout.reverse {
  grid-template-columns: minmax(360px, 1.14fr) minmax(280px, 0.86fr);
}

.copy-block {
  max-width: 590px;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.download-card {
  padding: 20px;
  border: 1px solid rgba(104, 226, 148, 0.35);
  border-radius: 8px;
  background: rgba(104, 226, 148, 0.07);
}

.download-card p {
  margin: 10px 0 18px;
}

.download-card .download-meta {
  margin: 0 0 8px;
  color: var(--green);
  font-size: 0.74rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

code {
  padding: 1px 5px;
  border: 1px solid rgba(78, 203, 255, 0.22);
  border-radius: 5px;
  color: #d8f3ff;
  background: rgba(78, 203, 255, 0.08);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: #dce8f6;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--purple-2);
  box-shadow: 10px -5px 0 var(--green);
}

.screenshot-frame {
  margin: 0;
}

.screenshot-frame img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.92rem;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 30px;
}

.section-heading.tight {
  margin-bottom: 22px;
}

.macro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.macro-card {
  min-height: 214px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
}

.macro-card h3 {
  color: var(--ink);
}

.macro-card p {
  margin: 14px 0 0;
  color: var(--muted);
}

.viewer-section {
  background: linear-gradient(180deg, var(--bg), #10161d);
}

.excelsis3d-section {
  padding: clamp(64px, 9vw, 104px) 0;
}

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

.idea-card,
.architecture-block {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
}

.idea-card {
  min-height: 210px;
  padding: 22px;
}

.idea-card.wide {
  grid-column: 1 / -1;
}

.idea-card p,
.architecture-block p {
  margin: 14px 0 0;
  color: var(--muted);
}

.architecture-block {
  display: grid;
  grid-template-columns: minmax(260px, 0.82fr) minmax(300px, 1.18fr);
  gap: clamp(24px, 4vw, 44px);
  margin-top: 14px;
  padding: 24px;
}

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

.architecture-list li {
  position: relative;
  padding-left: 25px;
  color: #dce8f6;
}

.architecture-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 10px -5px 0 var(--purple-2);
}

.closing-section {
  padding-block: clamp(52px, 8vw, 84px);
}

.site-footer {
  padding: 24px 0;
  color: var(--muted);
  background: #0a0f14;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
}

.footer-layout {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

.footer-layout span:first-child {
  color: var(--ink);
  font-weight: 850;
}

.footer-layout a {
  color: var(--cyan);
  text-underline-offset: 4px;
}

@media (max-width: 940px) {
  .site-header {
    position: sticky;
  }

  .hero {
    min-height: 86vh;
    padding-top: 76px;
  }

  .compact-grid,
  .closing-grid,
  .split-layout,
  .split-layout.reverse,
  .architecture-block {
    grid-template-columns: 1fr;
  }

  .split-layout.reverse .screenshot-frame {
    order: 2;
  }

  .macro-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .image-pair,
  .idea-grid,
  .download-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  nav {
    width: 100%;
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
    font-size: 0.86rem;
  }

  .hero {
    min-height: 84vh;
    padding-inline: 20px;
  }

  .hero-wash {
    background: rgba(13, 18, 24, 0.84);
  }

  h1 {
    font-size: 2.55rem;
  }

  h2 {
    font-size: 1.85rem;
  }

  .hero-copy {
    font-size: 1rem;
  }

  .button {
    width: 100%;
  }

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

  .footer-layout {
    flex-direction: column;
  }
}