:root {
  color-scheme: dark;
  --bg-1: #02030a;
  --bg-2: #060717;
  --bg-3: #02040d;
  --panel: rgba(8, 10, 25, 0.84);
  --panel-border: rgba(39, 220, 255, 0.2);
  --surface: rgba(8, 10, 25, 0.9);
  --surface-soft: rgba(12, 14, 34, 0.84);
  --text: #f7f4ff;
  --muted: #a6acc6;
  --heading: #fbf8ff;
  --accent-purple: #8b4dff;
  --accent-blue: #4887ff;
  --accent-cyan: #27dcff;
  --accent-green: #69f3b1;
  --accent-amber: #ffd36a;
  --header-height: 82px;
  --container: min(1240px, calc(100vw - 56px));
  --radius-xl: 0;
  --radius-lg: 0;
  --radius-md: 0;
  --display-font: "Eurostile Extended", "Bank Gothic", "Aptos Display", sans-serif;
  --body-font: "Aptos", "Trebuchet MS", sans-serif;
  --mono-font: "Cascadia Code", "IBM Plex Mono", monospace;
  --cut-lg: polygon(0 18px, 18px 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  --cut-sm: polygon(0 9px, 9px 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
}

html {
  background: var(--bg-1);
}

body {
  background:
    radial-gradient(circle at 14% 7%, rgba(192, 45, 255, 0.17), transparent 24rem),
    radial-gradient(circle at 88% 13%, rgba(0, 205, 255, 0.15), transparent 28rem),
    linear-gradient(145deg, var(--bg-1) 0%, var(--bg-2) 48%, var(--bg-3) 100%);
  line-height: 1.65;
}

body::before {
  opacity: 0.32;
  background-image:
    linear-gradient(rgba(39, 220, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(39, 220, 255, 0.055) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, black 0%, rgba(0, 0, 0, 0.6) 58%, transparent 100%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.32;
  background:
    radial-gradient(circle at 18% 30%, rgba(255, 255, 255, 0.8) 0 0.7px, transparent 0.9px),
    radial-gradient(circle at 74% 18%, rgba(39, 220, 255, 0.8) 0 0.7px, transparent 1px),
    radial-gradient(circle at 43% 78%, rgba(237, 66, 255, 0.7) 0 0.6px, transparent 0.9px);
  background-size: 91px 91px, 137px 137px, 173px 173px;
}

::selection {
  color: #fff;
  background: rgba(202, 54, 255, 0.55);
}

:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 4px;
}

.site-header {
  min-height: var(--header-height);
  border-bottom-color: var(--panel-border);
  background: rgba(2, 3, 10, 0.84);
  backdrop-filter: blur(20px) saturate(1.3);
}

.site-header::after {
  content: "";
  position: absolute;
  inset: auto 0 -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-purple), var(--accent-cyan), transparent);
  opacity: 0.72;
}

.nav-shell {
  min-height: var(--header-height);
}

.brand {
  flex: 0 0 auto;
  gap: 0.72rem;
  min-width: max-content;
  padding: 0;
}

.brand-mark {
  width: 52px;
  height: 52px;
  border-color: rgba(39, 220, 255, 0.42);
  border-radius: 50%;
  background: #050612;
  box-shadow: 0 0 22px rgba(95, 73, 255, 0.28), inset 0 0 18px rgba(39, 220, 255, 0.09);
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: -35%;
  background: linear-gradient(110deg, transparent 42%, rgba(255, 255, 255, 0.5), transparent 58%);
  transform: translateX(-70%) rotate(18deg);
  transition: transform 600ms ease;
}

.brand:hover .brand-mark::after {
  transform: translateX(70%) rotate(18deg);
}

.brand-logo-img {
  object-fit: cover;
  transform: scale(1.04);
}

.brand-text {
  font-size: 1.02rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-shadow: 0 0 18px rgba(39, 220, 255, 0.35);
}

.brand-tag {
  margin-left: 0.15rem;
  padding: 0 0 0 0.75rem;
  border: 0;
  border-left: 1px solid rgba(39, 220, 255, 0.35);
  border-radius: 0;
  color: #8993b2;
  font-family: var(--mono-font);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  justify-content: center;
  gap: 0.16rem;
  margin-inline: auto;
}

.site-nav a {
  position: relative;
  padding: 0.55rem 0.48rem;
  border-radius: 0;
  color: #abb3cd;
  font-family: var(--mono-font);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  right: 50%;
  bottom: 0.15rem;
  height: 1px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan));
  transition: left 160ms ease, right 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  color: #fff;
  border: 0;
  background: transparent;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a[aria-current="page"]::after {
  left: 0.48rem;
  right: 0.48rem;
}

.nav-toggle,
.alpha-pill,
.btn,
.badge,
.status,
.social-icons a {
  border-radius: 0;
  clip-path: var(--cut-sm);
}

.alpha-pill {
  flex: 0 0 auto;
  border-color: rgba(105, 243, 177, 0.33);
  background: rgba(21, 101, 74, 0.18);
  font-family: var(--mono-font);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}

.alpha-dot {
  background: var(--accent-green);
  box-shadow: 0 0 12px var(--accent-green);
  animation: statusPulse 2.4s ease-in-out infinite;
}

.hero {
  min-height: calc(100vh - var(--header-height));
  padding-block: clamp(3.8rem, 8vw, 7.4rem);
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  gap: clamp(2rem, 5vw, 5rem);
  position: relative;
}

.hero::before {
  content: "RV // INTERNAL ALPHA // EVIDENCE FIRST";
  position: absolute;
  left: 0;
  top: 1.35rem;
  color: rgba(128, 143, 177, 0.55);
  font-family: var(--mono-font);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
}

.hero-copy {
  position: relative;
  z-index: 3;
}

.hero-kicker,
.section-kicker {
  gap: 0.65rem;
  color: var(--accent-cyan);
  font-family: var(--mono-font);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.hero-kicker::before,
.section-kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan));
  box-shadow: 0 0 10px var(--accent-cyan);
}

.hero-kicker .alpha-dot {
  display: none;
}

.hero-copy h1 {
  max-width: 12ch;
  font-size: clamp(3rem, 6.9vw, 6.5rem);
  font-weight: 900;
  letter-spacing: -0.055em;
  line-height: 0.88;
  text-transform: uppercase;
  text-wrap: balance;
}

.hero-copy h1 span {
  background: linear-gradient(105deg, #fff 8%, #d94cff 45%, #35dbff 92%);
  background-clip: text;
  -webkit-background-clip: text;
  filter: drop-shadow(0 0 24px rgba(130, 65, 255, 0.24));
}

.hero-tag {
  max-width: 38rem;
  margin-top: 1.5rem;
  color: #e7e9f6;
  font-size: clamp(1.12rem, 2vw, 1.42rem);
  font-weight: 700;
  line-height: 1.35;
}

.hero-text {
  color: var(--muted);
  font-size: 1.02rem;
}

.btn {
  min-height: 48px;
  border-color: rgba(39, 220, 255, 0.32);
  background: rgba(18, 24, 48, 0.65);
  font-family: var(--mono-font);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.btn::after {
  content: "//";
  color: var(--accent-cyan);
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--accent-cyan);
  background: rgba(39, 220, 255, 0.11);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.35), 0 0 20px rgba(39, 220, 255, 0.12);
}

.btn-primary {
  background: linear-gradient(110deg, #9b42ff, #496dff 54%, #20cceb);
  box-shadow: 0 12px 38px rgba(96, 66, 255, 0.28);
}

.page-meta span {
  border: 0;
  border-left: 2px solid var(--accent-purple);
  border-radius: 0;
  color: #919ab6;
  background: rgba(139, 77, 255, 0.07);
  font-family: var(--mono-font);
  font-size: 0.69rem;
  text-transform: uppercase;
}

.hero-visual {
  min-height: 520px;
  isolation: isolate;
  border-color: rgba(39, 220, 255, 0.22);
  clip-path: var(--cut-lg);
  background:
    linear-gradient(90deg, transparent 49.8%, rgba(39, 220, 255, 0.09) 50%, transparent 50.2%),
    linear-gradient(transparent 49.8%, rgba(39, 220, 255, 0.09) 50%, transparent 50.2%),
    radial-gradient(circle, rgba(90, 47, 217, 0.22), rgba(3, 5, 14, 0.82) 68%);
  box-shadow: inset 0 0 70px rgba(25, 47, 105, 0.22), 0 30px 90px rgba(0, 0, 0, 0.48);
}

.hero-visual::before {
  width: min(90%, 540px);
  height: auto;
  aspect-ratio: 1;
  border-color: rgba(39, 220, 255, 0.27);
  background:
    repeating-conic-gradient(from 0deg, rgba(39, 220, 255, 0.34) 0 1deg, transparent 1deg 13deg),
    radial-gradient(circle, transparent 63%, rgba(237, 66, 255, 0.12) 63.5%, transparent 64%);
  mask-image: radial-gradient(circle, transparent 0 68%, black 68.5%);
  animation: orbitSpin 34s linear infinite;
}

.hero-visual::after {
  inset: 0;
  width: auto;
  height: auto;
  z-index: 4;
  border: 0;
  border-radius: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent, rgba(39, 220, 255, 0.42), transparent) 0 -15% / 100% 2px no-repeat,
    repeating-linear-gradient(0deg, transparent 0 5px, rgba(255, 255, 255, 0.018) 5px 6px);
  animation: scanSweep 5.5s ease-in-out infinite;
}

.hero-core {
  width: min(92%, 470px);
  height: auto;
  aspect-ratio: 1;
  z-index: 3;
  border: 0;
  border-radius: 50%;
  color: transparent;
  background: url("../img/romverse-logo.png") center / contain no-repeat;
  box-shadow: none;
  filter: drop-shadow(0 0 34px rgba(106, 59, 255, 0.44));
  animation: crestFloat 6.2s ease-in-out infinite;
}

main > section:not(.hero) {
  position: relative;
  padding-block: clamp(3.8rem, 7vw, 7rem);
  border-top-color: rgba(67, 150, 255, 0.1);
}

main > section:not(.hero)::before {
  content: "";
  position: absolute;
  top: -1px;
  left: max(28px, calc((100vw - 1240px) / 2));
  width: min(230px, 28vw);
  height: 1px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan), transparent);
}

.section-head h2,
.panel h2 {
  font-size: clamp(1.8rem, 3.5vw, 3.6rem);
  font-weight: 850;
  letter-spacing: -0.035em;
  line-height: 1.05;
  text-transform: uppercase;
  text-wrap: balance;
}

.grid {
  gap: 1rem;
  margin-top: 1.5rem;
}

.panel,
.changelog-item {
  position: relative;
  overflow: hidden;
  border-color: rgba(82, 158, 255, 0.18);
  clip-path: var(--cut-lg);
  background: linear-gradient(135deg, rgba(28, 16, 61, 0.24), transparent 45%), var(--panel);
  box-shadow: 0 22px 65px rgba(0, 0, 0, 0.26);
}

.panel {
  min-height: 100%;
  padding: 1.55rem;
  transition: transform 220ms ease, border-color 220ms ease, background 220ms ease;
}

.panel::before {
  content: "";
  width: 34px;
  height: 34px;
  display: block;
  margin-bottom: 1rem;
  border: 1px solid rgba(39, 220, 255, 0.35);
  border-radius: 50%;
  background: #050612 url("../img/romverse-icon.png") center / cover no-repeat;
  box-shadow: 0 0 18px rgba(39, 220, 255, 0.13);
}

.panel::after,
.changelog-item::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 86px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan));
}

.panel:hover {
  transform: translateY(-5px);
  border-color: rgba(39, 220, 255, 0.4);
  background: linear-gradient(135deg, rgba(108, 47, 217, 0.22), transparent 52%), var(--surface-soft);
}

.panel h3,
.panel h4,
.timeline h4 {
  font-weight: 800;
  letter-spacing: -0.015em;
}

.panel a:not(.btn) {
  color: var(--accent-cyan);
  text-underline-offset: 0.2em;
}

.badge,
.status {
  font-family: var(--mono-font);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.callout {
  border-left-color: var(--accent-cyan);
  background: linear-gradient(90deg, rgba(39, 220, 255, 0.1), transparent);
}

.changelog-item {
  margin-bottom: 0.85rem;
  padding: 1.2rem;
}

.changelog-item .meta {
  font-family: var(--mono-font);
  font-size: 0.66rem;
}

.timeline {
  border-left-color: rgba(39, 220, 255, 0.25);
}

.timeline li::before {
  background: var(--accent-cyan);
  box-shadow: 0 0 16px var(--accent-cyan);
}

.origin-trigger-note {
  font-family: var(--mono-font);
  font-size: 0.8rem;
}

.origin-panel {
  border-color: rgba(237, 66, 255, 0.42);
  clip-path: var(--cut-lg);
  background: radial-gradient(circle at 10% 15%, rgba(153, 56, 255, 0.2), rgba(5, 7, 18, 0.95));
}

form input,
form textarea {
  max-width: 100% !important;
  border-radius: 0 !important;
  border-color: rgba(39, 220, 255, 0.24) !important;
  background: rgba(4, 6, 16, 0.72) !important;
}

.site-footer {
  margin-top: 1rem;
  padding-block: 3.7rem 2.4rem;
  position: relative;
  overflow: hidden;
  border-top-color: rgba(39, 220, 255, 0.18);
  background: rgba(2, 3, 10, 0.9);
}

.site-footer::before {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  right: -250px;
  bottom: -320px;
  border: 1px solid rgba(39, 220, 255, 0.16);
  border-radius: 50%;
  box-shadow: 0 0 90px rgba(93, 57, 255, 0.14);
}

.footer-grid {
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.footer-grid h4 {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-grid h4::before {
  content: "";
  width: 21px;
  height: 21px;
  border-radius: 50%;
  background: url("../img/romverse-icon.png") center / cover no-repeat;
}

.foot-note {
  position: relative;
  z-index: 1;
  font-family: var(--mono-font);
  font-size: 0.68rem;
  letter-spacing: 0.025em;
}

.js-ready .reveal-item {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 620ms ease var(--reveal-delay, 0ms), transform 620ms cubic-bezier(0.2, 0.8, 0.2, 1) var(--reveal-delay, 0ms);
}

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

@keyframes statusPulse {
  0%, 100% { opacity: 0.55; transform: scale(0.88); }
  50% { opacity: 1; transform: scale(1.12); }
}

@keyframes crestFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-10px) scale(1.012); }
}

@keyframes orbitSpin {
  to { transform: rotate(360deg); }
}

@keyframes scanSweep {
  0%, 12% { background-position: 0 -15%, 0 0; opacity: 0.22; }
  65% { background-position: 0 115%, 0 0; opacity: 0.65; }
  100% { background-position: 0 115%, 0 0; opacity: 0.18; }
}

@media (max-width: 1180px) {
  :root {
    --container: min(980px, calc(100vw - 40px));
  }

  .brand-tag,
  .alpha-pill {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    order: 3;
    border-color: rgba(237, 66, 255, 0.4);
    color: #fff;
    background: rgba(139, 77, 255, 0.12);
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
    padding: 1rem max(20px, calc((100vw - 980px) / 2)) 1.4rem;
    border-bottom: 1px solid rgba(237, 66, 255, 0.4);
    background: rgba(2, 3, 10, 0.97);
    backdrop-filter: blur(22px);
  }

  .site-nav.open {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-nav a {
    padding: 0.85rem;
    border-bottom: 1px solid rgba(67, 117, 210, 0.13);
    font-size: 0.78rem;
  }

  body.menu-open {
    overflow: hidden;
  }

  .hero {
    grid-template-columns: 1fr 0.9fr;
  }

  .hero-visual {
    min-height: 440px;
  }
}

@media (max-width: 860px) {
  :root {
    --container: min(720px, calc(100vw - 32px));
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-block: 5.2rem 4rem;
  }

  .hero-copy h1 {
    max-width: 14ch;
    font-size: clamp(3rem, 13vw, 5.8rem);
  }

  .hero-visual {
    min-height: min(86vw, 560px);
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  :root {
    --header-height: 72px;
    --container: calc(100vw - 26px);
  }

  .brand-mark {
    width: 44px;
    height: 44px;
  }

  .brand-text {
    font-size: 0.88rem;
    letter-spacing: 0.13em;
  }

  .site-nav.open,
  .grid-2,
  .grid-3,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .site-nav {
    padding-inline: 13px;
  }

  .hero::before {
    top: 1.1rem;
    font-size: 0.51rem;
    letter-spacing: 0.1em;
  }

  .hero-copy h1 {
    font-size: clamp(2.65rem, 14vw, 4.6rem);
  }

  .hero-visual {
    min-height: calc(100vw - 26px);
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}

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