:root {
  color-scheme: dark;
  --bg: #05070c;
  --bg-panel: rgba(10, 14, 22, 0.92);
  --bg-panel-strong: rgba(14, 20, 31, 0.96);
  --line: rgba(170, 180, 192, 0.22);
  --line-strong: rgba(126, 181, 255, 0.44);
  --text: #f4ead8;
  --muted: rgba(205, 212, 222, 0.8);
  --shadow: rgba(0, 0, 0, 0.5);
  --blue: #2e7cff;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { min-height: 100%; }
body {
  margin: 0;
  font-family: 'Chakra Petch', 'Trebuchet MS', sans-serif;
  background: #03050a;
  color: var(--text);
}

a { color: inherit; }

.manual-backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 22%, rgba(86, 140, 210, 0.18), transparent 34%),
    radial-gradient(circle at 86% 12%, rgba(255, 113, 113, 0.12), transparent 28%),
    linear-gradient(180deg, #070c15 0%, #03050a 100%);
}

.manual-backdrop__grid {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(183, 192, 204, 0.11) 1px, transparent 1px),
    linear-gradient(90deg, rgba(183, 192, 204, 0.11) 1px, transparent 1px);
  background-size: 2.4rem 2.4rem;
  opacity: 0.3;
}

.manual-backdrop__glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(66, 120, 207, 0.16), transparent 40%);
}

.manual-shell {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 4.9rem 0 2rem;
}

.manual-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  display: flex;
  width: 100vw;
  background: #000;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.34);
}

.manual-topbar__nav {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem;
  padding: 0.78rem 0;
}

.manual-topbar__back,
.manual-topbar__action {
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.84rem;
  color: rgba(244, 245, 247, 0.9);
  background: transparent;
  border: 0;
  padding: 0;
  font: inherit;
  cursor: pointer;
}

.manual-topbar__action {
  color: rgba(205, 212, 222, 0.82);
}

.manual-topbar__action:hover {
  color: #f6f7f8;
}

.panel {
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 20%),
    linear-gradient(180deg, var(--bg-panel-strong), var(--bg-panel));
  box-shadow:
    0 18px 44px var(--shadow),
    inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(8px);
}

.manual-hero {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(320px, 1fr) minmax(250px, 0.72fr);
  gap: 1.4rem;
  padding: 1rem;
  align-items: stretch;
}

.manual-hero__art {
  padding: 0.75rem;
  border: 1px solid rgba(168, 174, 182, 0.16);
  background: rgba(0, 0, 0, 0.28);
}

.manual-hero__cover {
  display: block;
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: contain;
  background: rgba(0, 0, 0, 0.4);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.42);
}

.manual-hero__copy {
  display: grid;
  gap: 0.95rem;
  align-content: start;
}

.manual-panel__label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.84rem;
  color: var(--muted);
}

.manual-hero h1 {
  margin: 0;
  font-family: 'Bungee', 'Impact', sans-serif;
  font-size: clamp(2.8rem, 5vw, 5.4rem);
  line-height: 0.88;
  color: #f6f7f8;
  text-shadow:
    0.03em 0.03em 0 rgba(86, 140, 210, 0.92),
    0.07em 0.07em 0 rgba(8, 17, 31, 0.46),
    0.12em 0.12em 0 rgba(0, 0, 0, 0.68);
}

.manual-hero__lede,
.manual-hero__mission,
.manual-panel__tip {
  margin: 0;
  font-size: 1.06rem;
  line-height: 1.7;
  color: rgba(244, 245, 247, 0.86);
}

.manual-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.manual-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 11rem;
  padding: 0.8rem 1rem;
  border: 1px solid rgba(205, 212, 222, 0.24);
  background: rgba(12, 18, 29, 0.86);
  color: #f8fbff;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.82rem;
  font-weight: 700;
}

.manual-action--primary {
  border-color: rgba(120, 171, 245, 0.42);
  background: var(--blue);
}

.manual-actions > .manual-action:nth-child(-n+2) {
  border-color: rgba(120, 171, 245, 0.42);
  background: var(--blue);
}

.manual-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 0;
}

.manual-stats--hero {
  max-width: 30rem;
}

.manual-stats div {
  padding: 0.8rem;
  border: 1px solid rgba(205, 212, 222, 0.16);
  background: rgba(6, 10, 18, 0.76);
}

.manual-stats dt {
  margin: 0 0 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  color: var(--muted);
}

.manual-stats dd {
  margin: 0;
  font-size: 1.02rem;
  color: #f6f7f8;
}

.manual-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
  gap: 1rem;
  margin-top: 1rem;
}

.manual-launch {
  display: grid;
  align-content: start;
  justify-items: center;
  gap: 0.9rem;
  padding: 1rem;
}

.manual-launch h2 {
  margin: 0;
  text-align: center;
  font-size: 1.7rem;
}

.manual-launch__actions {
  display: flex;
  width: 100%;
}

.manual-launch__actions .manual-action {
  width: 100%;
}

.manual-panel {
  padding: 1rem;
}

.manual-panel--info {
  display: grid;
  align-content: start;
  gap: 1.35rem;
}

.manual-panel h2 {
  margin: 0;
  font-size: 1.8rem;
  line-height: 1;
}

.manual-section {
  display: grid;
  gap: 0.95rem;
}

.manual-panel ol,
.manual-panel ul {
  margin: 0;
  padding-left: 1.3rem;
  display: grid;
  gap: 0.7rem;
  color: rgba(244, 245, 247, 0.86);
  line-height: 1.6;
}

.manual-panel__body {
  display: grid;
  gap: 0.95rem;
}

.manual-panel__body p {
  margin: 0;
  font-size: 1.06rem;
  line-height: 1.7;
  color: rgba(244, 245, 247, 0.86);
}

.manual-preview,
.manual-qr {
  display: block;
  width: min(100%, 360px);
  margin: 0 auto;
}

.manual-qr {
  padding: 0.8rem;
  background: #fff;
}

.manual-preview-shell {
  width: min(100%, 360px);
  aspect-ratio: 9 / 16;
  margin: 0 auto;
  overflow: hidden;
  border-radius: 1.4rem;
  background: #000;
}

.manual-preview-frame {
  width: 100%;
  height: 100%;
  border: 0;
  background: #000;
}

.manual-qr--hero {
  width: min(100%, 260px);
}

.manual-qr--expanded {
  width: min(100%, 520px);
}

.manual-panel--preview,
.manual-panel--tech {
  display: grid;
  justify-items: start;
  align-content: start;
  gap: 0.85rem;
}

.overlay-open {
  overflow: hidden;
}

.overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.overlay__scrim {
  position: absolute;
  inset: 0;
  background: rgba(1, 3, 8, 0.78);
}

.overlay__panel {
  position: relative;
  z-index: 1;
  width: min(92vw, 42rem);
  padding: 1rem;
  display: grid;
  justify-items: center;
  gap: 0.9rem;
}

.overlay__panel h2 {
  margin: 0;
  font-size: 2rem;
}

.overlay__panel--player {
  width: min(92vw, 24rem);
  padding: 0;
  gap: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.overlay__close {
  position: absolute;
  top: -0.1rem;
  right: 0.2rem;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.96);
  width: auto;
  height: auto;
  padding: 0;
  font-size: 2.1rem;
  line-height: 1;
  cursor: pointer;
}

.phone-frame {
  position: relative;
  width: min(100%, 24rem);
  aspect-ratio: 9 / 19;
  margin-top: 0;
  padding: 0;
  border-radius: 1.8rem;
  background: transparent;
  box-shadow: none;
}

.phone-frame__notch {
  display: none;
}

.phone-frame__screen {
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: 1.8rem;
  background: #000;
}

@media (max-width: 1080px) {
  .manual-hero {
    grid-template-columns: minmax(240px, 0.86fr) minmax(0, 1fr);
  }

  .manual-launch {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .manual-shell {
    width: min(100% - 1.5rem, 100%);
    padding-top: 4.2rem;
  }

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

  .manual-hero__copy {
    order: 1;
  }

  .manual-launch {
    order: 2;
  }

  .manual-hero__art {
    order: 3;
  }

  .manual-grid,
  .manual-stats {
    grid-template-columns: 1fr;
  }

  .manual-action {
    width: 100%;
  }

  .manual-actions {
    display: grid;
  }
}

@media (max-width: 920px) {
  .manual-shell {
    width: min(100%, calc(100% - 1.5rem));
    padding-top: 4.25rem;
    padding-bottom: 1.25rem;
  }

  .manual-topbar__nav {
    width: min(100%, calc(100% - 1.5rem));
    flex-wrap: wrap;
    justify-content: flex-start;
    padding: 0.72rem 0;
  }

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

  .manual-stats {
    grid-template-columns: 1fr;
  }

  .manual-preview,
  .manual-qr {
    width: 100%;
    max-width: 360px;
  }
}