:root {
  --bg: #090b13;
  --bg-soft: #111726;
  --panel: rgba(16, 21, 35, 0.72);
  --panel-strong: rgba(15, 20, 34, 0.9);
  --text: #f6f7fb;
  --muted: #a4aec7;
  --line: rgba(255, 255, 255, 0.1);
  --cyan: #65f0ff;
  --teal: #00d1b0;
  --lime: #cbff7a;
  --gold: #ffcf6d;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --max: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 15%, rgba(101, 240, 255, 0.24), transparent 24%),
    radial-gradient(circle at 80% 10%, rgba(203, 255, 122, 0.14), transparent 20%),
    radial-gradient(circle at 50% 50%, rgba(0, 209, 176, 0.12), transparent 34%),
    linear-gradient(180deg, #070910 0%, #090b13 30%, #0a0f1b 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at center, black, transparent 85%);
}

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

.page-shell {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  padding-bottom: 32px;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 16px;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(7, 10, 18, 0.66);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: "Sora", sans-serif;
  font-weight: 700;
}

.brand-mark {
  width: 18px;
  height: 18px;
  border-radius: 6px;
  transform: rotate(45deg);
  background: linear-gradient(135deg, var(--cyan), var(--teal) 58%, var(--lime));
  box-shadow: 0 0 26px rgba(101, 240, 255, 0.55);
}

.site-nav {
  display: flex;
  gap: 22px;
  color: var(--muted);
}

.site-nav a:hover,
.footer-links a:hover {
  color: var(--text);
}

.steam-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.steam-button {
  color: #08111d;
  background: linear-gradient(135deg, #7cf8ff, #cbff7a);
  box-shadow: 0 12px 30px rgba(101, 240, 255, 0.24);
}

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

.steam-button--small {
  min-height: 42px;
  padding: 0 18px;
  white-space: nowrap;
}

.steam-button--large {
  min-height: 56px;
  padding: 0 26px;
  font-size: 1rem;
}

.secondary-button {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.hero,
.content-section,
.feature-strip,
.final-cta,
.site-footer {
  position: relative;
  z-index: 1;
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 44px;
  align-items: center;
  padding: 72px 0 44px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--lime);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.hero h1,
.section-heading h2,
.final-cta h2 {
  margin: 0;
  font-family: "Sora", sans-serif;
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.hero h1 {
  font-size: clamp(3.6rem, 8vw, 7.2rem);
  max-width: 10ch;
}

.hero-text,
.section-heading p,
.final-cta p,
.feature-card p,
.projector-card p,
.audience-item p,
.faq-list p,
.site-footer p {
  color: var(--muted);
  line-height: 1.7;
}

.hero-text {
  max-width: 62ch;
  font-size: 1.08rem;
  margin: 24px 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.hero-meta div,
.feature-card,
.roadmap-card,
.spec-card,
.projector-card,
.faq-list details,
.feature-strip article,
.site-footer {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.hero-meta div {
  padding: 16px 18px;
  border-radius: var(--radius-md);
}

.meta-label {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.hero-visual {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.visual-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(18px);
}

.visual-glow-a {
  width: 280px;
  height: 280px;
  right: 12%;
  top: 8%;
  background: rgba(101, 240, 255, 0.22);
}

.visual-glow-b {
  width: 240px;
  height: 240px;
  left: 6%;
  bottom: 12%;
  background: rgba(203, 255, 122, 0.14);
}

.app-window {
  position: relative;
  width: min(100%, 560px);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 16%),
    rgba(9, 14, 26, 0.92);
  overflow: hidden;
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.45);
  transform: perspective(1400px) rotateY(-13deg) rotateX(7deg);
}

.window-bar {
  display: flex;
  gap: 8px;
  padding: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.window-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
}

.window-body {
  display: grid;
  grid-template-columns: 150px 1fr;
  min-height: 420px;
}

.control-panel {
  padding: 18px;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.03);
}

.control-line,
.control-grid span {
  display: block;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.18), rgba(101, 240, 255, 0.2));
}

.control-line {
  height: 10px;
  margin-bottom: 14px;
}

.control-line.short {
  width: 70%;
}

.control-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 18px 0;
}

.control-grid span {
  height: 56px;
  border-radius: 16px;
}

.preview-panel {
  position: relative;
  overflow: hidden;
  padding: 28px;
  background:
    radial-gradient(circle at 30% 30%, rgba(101, 240, 255, 0.12), transparent 20%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0));
}

.mesh-plane {
  position: absolute;
  inset: 12% 8%;
  border-radius: 32px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(135deg, rgba(101, 240, 255, 0.14), rgba(203, 255, 122, 0.08));
  background-size: 44px 44px, 44px 44px, auto;
  clip-path: polygon(13% 12%, 82% 8%, 94% 28%, 84% 84%, 22% 92%, 6% 58%);
}

.mesh-point {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(255, 207, 109, 0.14);
}

.p1 { top: 10%; left: 12%; }
.p2 { top: 8%; right: 14%; }
.p3 { top: 32%; right: 6%; }
.p4 { bottom: 10%; right: 18%; }
.p5 { bottom: 4%; left: 24%; }
.p6 { top: 48%; left: 4%; }

.placeholder-tag,
.floating-note,
.projector-badge {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.placeholder-tag {
  position: absolute;
  right: 18px;
  bottom: 18px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(6, 11, 19, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.floating-note {
  position: absolute;
  left: -6%;
  bottom: 12%;
  max-width: 240px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(9, 14, 26, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
}

.feature-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 12px 0 26px;
}

.feature-strip article {
  padding: 22px;
  border-radius: var(--radius-lg);
}

.feature-strip span,
.feature-card h3,
.projector-card h3,
.spec-card h3 {
  display: block;
  font-family: "Sora", sans-serif;
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.content-section {
  padding: 60px 0 12px;
}

.content-section--alt {
  padding-top: 52px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 26px;
}

.section-heading h2,
.final-cta h2 {
  font-size: clamp(2.1rem, 4vw, 4rem);
}

.card-grid,
.specs-grid,
.projector-grid {
  display: grid;
  gap: 18px;
}

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

.feature-card,
.roadmap-card,
.spec-card,
.projector-card {
  padding: 24px;
  border-radius: var(--radius-lg);
}

.audience-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 20px;
}

.audience-list {
  display: grid;
  gap: 16px;
}

.audience-item {
  padding: 20px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.audience-item:first-child {
  padding-top: 0;
}

.audience-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.audience-item strong {
  font-size: 1.06rem;
}

.roadmap-card ul,
.spec-card ul,
.projector-card ul {
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.roadmap-note {
  margin-top: 18px;
  font-size: 0.95rem;
}

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

.projectors-section .section-heading {
  max-width: 860px;
}

.projector-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.projector-card {
  position: relative;
  padding-top: 54px;
}

.projector-card--featured {
  background:
    linear-gradient(180deg, rgba(101, 240, 255, 0.08), transparent 26%),
    rgba(15, 20, 34, 0.92);
  transform: translateY(-10px);
}

.projector-badge {
  position: absolute;
  top: 18px;
  left: 24px;
  padding: 8px 12px;
  border-radius: 999px;
  color: #08111d;
  background: linear-gradient(135deg, var(--gold), #fff7c0);
}

.projector-card a {
  display: inline-flex;
  margin-top: 18px;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(101, 240, 255, 0.55);
  color: var(--cyan);
  font-weight: 700;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-list details {
  border-radius: var(--radius-md);
  padding: 18px 22px;
}

.faq-list summary {
  cursor: pointer;
  font-family: "Sora", sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
}

.faq-list p {
  margin: 12px 0 4px;
}

.final-cta {
  margin-top: 62px;
  padding: 42px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 0% 0%, rgba(101, 240, 255, 0.16), transparent 28%),
    radial-gradient(circle at 100% 100%, rgba(203, 255, 122, 0.12), transparent 20%),
    rgba(15, 20, 34, 0.9);
  box-shadow: var(--shadow);
  text-align: center;
}

.final-cta p {
  max-width: 58ch;
  margin-left: auto;
  margin-right: auto;
}

.final-cta .steam-button {
  margin-top: 12px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 24px;
  padding: 22px 24px;
  border-radius: var(--radius-lg);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
}

.footer-note {
  font-size: 0.92rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero,
  .audience-layout,
  .projector-grid,
  .feature-strip,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 44px;
  }

  .hero-visual {
    min-height: 500px;
  }

  .floating-note {
    left: 4%;
    bottom: 4%;
  }

  .projector-card--featured {
    transform: none;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 820px) {
  .site-header {
    border-radius: 28px;
    padding: 16px;
  }

  .site-nav {
    display: none;
  }

  .hero-meta,
  .specs-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: 12ch;
  }

  .app-window {
    transform: none;
  }
}

@media (max-width: 560px) {
  .page-shell {
    width: min(calc(100% - 20px), var(--max));
  }

  .site-header {
    gap: 12px;
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .steam-button--small {
    width: 100%;
  }

  .hero {
    gap: 26px;
  }

  .hero h1 {
    font-size: clamp(3rem, 17vw, 4rem);
  }

  .window-body {
    grid-template-columns: 1fr;
  }

  .control-panel {
    display: none;
  }

  .hero-visual {
    min-height: 380px;
  }

  .floating-note,
  .placeholder-tag {
    position: static;
    margin-top: 14px;
  }

  .final-cta,
  .feature-card,
  .roadmap-card,
  .spec-card,
  .projector-card {
    padding: 20px;
  }
}