/* Arcane Drift Website V1.0.2
   Static production landing page — no external framework or CDN dependencies. */

:root {
  --bg: #050911;
  --bg-soft: #08111f;
  --panel: rgba(10, 24, 40, 0.68);
  --panel-strong: rgba(8, 20, 35, 0.88);
  --line: rgba(116, 216, 255, 0.18);
  --line-strong: rgba(116, 216, 255, 0.38);
  --text: #f2f8ff;
  --muted: #8ca2b9;
  --accent: #73dcff;
  --accent-2: #63a8ff;
  --success: #80ffd0;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  --radius: 18px;
  --max: 1240px;
}

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

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 12%, rgba(48, 136, 203, 0.12), transparent 31rem),
    radial-gradient(circle at 82% 38%, rgba(76, 79, 255, 0.09), transparent 35rem),
    linear-gradient(180deg, #050911 0%, #060d18 46%, #040810 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.14;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
  z-index: -1;
}

a {
  color: inherit;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

::selection {
  background: rgba(115, 220, 255, 0.28);
  color: white;
}

#starfield {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -3;
  opacity: .72;
}

.ambient {
  position: fixed;
  width: 36vw;
  height: 36vw;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .055;
  pointer-events: none;
  z-index: -2;
}

.ambient-a {
  top: 8vh;
  left: -12vw;
  background: var(--accent);
}

.ambient-b {
  right: -14vw;
  top: 46vh;
  background: #536dff;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.section-shell {
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 76px;
  display: flex;
  align-items: center;
  gap: 28px;
  padding-inline: max(24px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid transparent;
  background: rgba(5, 9, 17, 0.58);
  backdrop-filter: blur(18px) saturate(130%);
  transition: background .25s ease, border-color .25s ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(5, 9, 17, 0.86);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: .14em;
  font-size: .83rem;
  white-space: nowrap;
}

.brand img {
  filter: drop-shadow(0 0 12px rgba(115,220,255,.28));
}

.primary-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 26px;
}

.primary-nav a {
  position: relative;
  color: var(--muted);
  text-decoration: none;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: color .2s ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  color: white;
}

.primary-nav .nav-cta {
  color: var(--accent);
  border: 1px solid var(--line-strong);
  padding: 10px 14px;
  border-radius: 999px;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: white;
  background: rgba(255,255,255,.03);
}

.nav-toggle span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 4px 0;
  border-radius: 3px;
  background: currentColor;
}

.hero {
  min-height: calc(100vh - 76px);
  padding-top: clamp(64px, 9vh, 120px);
  padding-bottom: 70px;
  position: relative;
  display: grid;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: clamp(40px, 6vw, 84px);
  align-items: center;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .22em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.split-copy h2,
.avalon-copy h2,
.connect-panel h2 {
  margin: 0;
  letter-spacing: -.045em;
  line-height: .94;
  text-transform: uppercase;
  font-weight: 850;
}

.hero h1 {
  font-size: clamp(3.6rem, 8vw, 7.6rem);
}

.hero h1 span,
.section-heading h2 span,
.split-copy h2 span,
.avalon-copy h2 span {
  color: transparent;
  -webkit-text-stroke: 1px rgba(218, 241, 255, 0.46);
  text-shadow: 0 0 45px rgba(85, 183, 255, 0.08);
}

.hero-lede {
  max-width: 680px;
  margin: 28px 0 0;
  color: #b4c5d6;
  font-size: clamp(1.05rem, 1.4vw, 1.24rem);
  line-height: 1.75;
}

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

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 10px;
  text-decoration: none;
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
}

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

.button-primary {
  color: #03101b;
  background: linear-gradient(135deg, #b7edff 0%, var(--accent) 44%, #74b7ff 100%);
  box-shadow: 0 12px 38px rgba(78, 186, 255, .18);
}

.button-ghost {
  color: #d5e5f5;
  border-color: var(--line-strong);
  background: rgba(255,255,255,.025);
}

.button-ghost:hover {
  background: rgba(115,220,255,.07);
}

.signal-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 28px;
  color: var(--muted);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .055em;
  text-transform: uppercase;
}

.signal-row span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.signal-row i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 12px rgba(128,255,208,.6);
}

.media-frame {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(20, 61, 92, .42), rgba(9, 17, 31, .88)),
    radial-gradient(circle at 50% 50%, rgba(104, 210, 255, .12), transparent 55%);
  box-shadow: var(--shadow);
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, transparent 20%, rgba(115,220,255,.08) 48%, transparent 70%),
    repeating-linear-gradient(0deg, transparent 0 22px, rgba(120,220,255,.035) 23px);
  z-index: -1;
}

.media-frame-hero {
  aspect-ratio: 4 / 5;
  min-height: 520px;
  transform: perspective(1200px) rotateY(-3deg) rotateX(1deg);
}

.media-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 44px;
  text-align: center;
}

.media-placeholder::before {
  content: "";
  width: min(62%, 280px);
  aspect-ratio: 1;
  margin-bottom: 10px;
  border: 1px solid rgba(115,220,255,.16);
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(115,220,255,.1), transparent 48%),
    conic-gradient(from 0deg, transparent 0 8%, rgba(115,220,255,.15) 8% 9%, transparent 9% 18%, rgba(115,220,255,.12) 18% 19%, transparent 19% 100%);
  animation: slow-spin 28s linear infinite;
}

.media-kicker {
  color: var(--accent);
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .18em;
}

.media-placeholder strong {
  font-size: clamp(1.05rem, 2vw, 1.5rem);
  letter-spacing: .08em;
}

.media-placeholder small {
  max-width: 460px;
  color: var(--muted);
  line-height: 1.6;
}

.media-placeholder-compact::before {
  width: 124px;
}

.scanlines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .14;
  background: repeating-linear-gradient(to bottom, transparent 0 4px, rgba(255,255,255,.03) 5px);
}

.hud-corner {
  position: absolute;
  width: 50px;
  height: 50px;
  border-color: rgba(115,220,255,.55);
  z-index: 2;
}

.hud-corner-tl {
  top: 18px;
  left: 18px;
  border-top: 1px solid;
  border-left: 1px solid;
}

.hud-corner-br {
  right: 18px;
  bottom: 18px;
  border-right: 1px solid;
  border-bottom: 1px solid;
}

.hero-telemetry {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 22px;
  display: flex;
  gap: 14px;
  justify-content: space-between;
  color: #8bdcff;
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .14em;
}

.scroll-cue {
  position: absolute;
  left: 0;
  bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #61768b;
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .17em;
}

.scroll-cue span {
  width: 38px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.content-section {
  padding-block: clamp(90px, 12vw, 160px);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 48px;
}

.section-heading h2,
.split-copy h2,
.avalon-copy h2,
.connect-panel h2 {
  font-size: clamp(2.8rem, 6vw, 5.6rem);
}

.section-heading > p:last-child,
.split-copy > p:not(.eyebrow),
.avalon-copy > p:not(.eyebrow),
.connect-panel > p:not(.eyebrow) {
  color: #aebfd0;
  line-height: 1.78;
  font-size: 1.04rem;
}

.section-heading > p:last-child {
  max-width: 660px;
  margin-top: 24px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.glass-card,
.role-card,
.terminal-card,
.connect-panel {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(14, 28, 46, .74), rgba(7, 15, 26, .68));
  box-shadow: 0 18px 60px rgba(0,0,0,.18);
  backdrop-filter: blur(12px);
}

.glass-card {
  min-height: 260px;
  padding: 28px;
  border-radius: var(--radius);
}

.card-index {
  color: rgba(115,220,255,.55);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .72rem;
  letter-spacing: .18em;
}

.glass-card h3,
.role-card h3 {
  margin: 64px 0 10px;
  font-size: 1.28rem;
  letter-spacing: -.02em;
}

.glass-card p,
.role-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.68;
}

.split-section,
.avalon-section {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: clamp(44px, 7vw, 94px);
}

.ratio-wide {
  aspect-ratio: 16 / 11;
}

.split-copy > p:not(.eyebrow),
.avalon-copy > p:not(.eyebrow) {
  margin-top: 26px;
}

.data-list {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.data-list li {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.data-list span {
  color: var(--muted);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .16em;
}

.data-list strong {
  font-size: .82rem;
  letter-spacing: .04em;
}

.status-live {
  color: var(--success);
}

.avalon-section {
  grid-template-columns: .8fr 1.2fr;
}

.avalon-core {
  position: relative;
  width: min(100%, 420px);
  aspect-ratio: 1;
  margin-inline: auto;
  display: grid;
  place-items: center;
}

.avalon-core::before {
  content: "";
  position: absolute;
  inset: 14%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(115,220,255,.22), rgba(115,220,255,.025) 42%, transparent 65%);
  filter: blur(4px);
}

.core-ring {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  border: 1px solid rgba(115,220,255,.28);
}

.core-ring::before,
.core-ring::after {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  border: 1px dashed rgba(115,220,255,.16);
}

.core-ring-a {
  animation: slow-spin 24s linear infinite;
}

.core-ring-b {
  inset: 21%;
  border-style: dashed;
  animation: slow-spin-reverse 18s linear infinite;
}

.core-center {
  width: 34%;
  aspect-ratio: 1;
  display: grid;
  place-content: center;
  text-align: center;
  border-radius: 50%;
  border: 1px solid rgba(115,220,255,.54);
  background: radial-gradient(circle, rgba(115,220,255,.24), rgba(8,20,35,.9) 70%);
  box-shadow: inset 0 0 34px rgba(115,220,255,.14), 0 0 50px rgba(115,220,255,.12);
}

.core-center span {
  color: #a7eaff;
  font-size: .68rem;
  font-weight: 900;
  letter-spacing: .22em;
}

.core-center strong {
  margin-top: 6px;
  font-size: 2.3rem;
  line-height: 1;
}

.terminal-card {
  margin-top: 32px;
  padding: 10px 18px;
  border-radius: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.terminal-card div {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: .74rem;
}

.terminal-card div:last-child {
  border-bottom: 0;
}

.terminal-card span {
  color: #7891a8;
}

.terminal-card b {
  color: var(--success);
  letter-spacing: .08em;
}

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

.role-card {
  padding: 24px;
  min-height: 230px;
  border-radius: var(--radius);
  transition: border-color .2s ease, transform .2s ease, background .2s ease;
}

.role-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  background: linear-gradient(180deg, rgba(18, 40, 61, .82), rgba(7, 15, 26, .72));
}

.role-code {
  display: inline-grid;
  place-items: center;
  min-width: 48px;
  height: 30px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--accent);
  font-size: .68rem;
  font-weight: 900;
  letter-spacing: .16em;
}

.role-card h3 {
  margin-top: 54px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1.35fr .82fr .82fr;
  gap: 14px;
}

.gallery-grid .media-frame {
  min-height: 360px;
}

.gallery-a {
  min-height: 500px !important;
}

.gallery-b,
.gallery-c {
  align-self: stretch;
}

.connect-section {
  padding: 70px 0 120px;
}

.connect-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(34px, 6vw, 72px);
  border-radius: 24px;
}

.connect-panel::after {
  content: "";
  position: absolute;
  width: 430px;
  height: 430px;
  right: -120px;
  top: -170px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(115,220,255,.18), transparent 67%);
  pointer-events: none;
}

.connect-panel > p:not(.eyebrow) {
  max-width: 650px;
}

.connect-note {
  margin-top: 18px !important;
  color: #6f859b !important;
  font-size: .78rem !important;
}

.disabled-link {
  opacity: .64;
}

.site-footer {
  min-height: 110px;
  padding: 28px 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  border-top: 1px solid var(--line);
  color: #6f8498;
  font-size: .76rem;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #b9cad9;
  font-weight: 800;
  letter-spacing: .12em;
}

.footer-links {
  justify-self: end;
  display: flex;
  gap: 18px;
}

.footer-links a {
  color: #8196aa;
  text-decoration: none;
}

.footer-links a:hover {
  color: white;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1);
}

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

.delay-1 {
  transition-delay: .08s;
}

.delay-2 {
  transition-delay: .16s;
}

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

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

@media (max-width: 980px) {
  .primary-nav {
    position: fixed;
    left: 20px;
    right: 20px;
    top: 86px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(5, 10, 18, .96);
    box-shadow: var(--shadow);
  }

  .primary-nav.is-open {
    display: flex;
  }

  .primary-nav a {
    padding: 14px;
    border-radius: 10px;
  }

  .primary-nav .nav-cta {
    margin-top: 6px;
  }

  .nav-toggle {
    display: block;
  }

  .hero-grid,
  .split-section,
  .avalon-section {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 72px;
  }

  .media-frame-hero {
    aspect-ratio: 16 / 11;
    min-height: 420px;
    transform: none;
  }

  .feature-grid,
  .role-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .gallery-a {
    grid-column: 1 / -1;
  }

  .avalon-core {
    width: min(78vw, 390px);
  }
}

@media (max-width: 640px) {
  .section-shell {
    width: min(calc(100% - 30px), var(--max));
  }

  .site-header {
    height: 68px;
    padding-inline: 15px;
  }

  .brand {
    font-size: .74rem;
  }

  .brand img {
    width: 30px;
    height: 30px;
  }

  .hero {
    min-height: auto;
    padding-top: 58px;
    padding-bottom: 84px;
  }

  .hero h1 {
    font-size: clamp(3rem, 17vw, 5rem);
  }

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

  .signal-row {
    display: grid;
    gap: 10px;
  }

  .media-frame-hero {
    min-height: 360px;
  }

  .media-placeholder {
    padding: 26px;
  }

  .hero-telemetry {
    display: none;
  }

  .scroll-cue {
    display: none;
  }

  .content-section {
    padding-block: 84px;
  }

  .feature-grid,
  .role-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-a {
    grid-column: auto;
  }

  .gallery-grid .media-frame,
  .gallery-a {
    min-height: 320px !important;
  }

  .glass-card {
    min-height: 220px;
  }

  .glass-card h3,
  .role-card h3 {
    margin-top: 42px;
  }

  .data-list li {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .site-footer {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-brand,
  .footer-links {
    justify-self: center;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}