:root {
  --bg: #08111a;
  --bg-soft: #101a25;
  --surface: rgba(12, 18, 27, 0.92);
  --surface-soft: rgba(255, 255, 255, 0.03);
  --line: rgba(255, 214, 138, 0.12);
  --line-strong: rgba(255, 214, 138, 0.28);
  --text: #f5f1e7;
  --muted: #b7bec9;
  --accent: #ffd68a;
  --accent-deep: #20160a;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --content: min(1660px, calc(100vw - 24px));
  --header-height: 86px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  font-family: "IBM Plex Sans SC", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(255, 214, 138, 0.12), transparent 24%),
    radial-gradient(circle at 82% 12%, rgba(58, 86, 122, 0.28), transparent 30%),
    linear-gradient(180deg, #0b1119 0%, #08111a 42%, #050b12 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  background-image:
    linear-gradient(rgba(255, 214, 138, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 214, 138, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.45), transparent 36%);
}

body::after {
  background:
    radial-gradient(circle at 16% 18%, rgba(255, 214, 138, 0.07), transparent 14%),
    radial-gradient(circle at 80% 76%, rgba(255, 214, 138, 0.05), transparent 16%);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.site-shell,
.site-header,
.site-footer,
main {
  position: relative;
  z-index: 1;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  padding: 16px 0;
  backdrop-filter: blur(18px);
  background: linear-gradient(180deg, rgba(8, 12, 18, 0.84), rgba(8, 12, 18, 0.46));
  border-bottom: 1px solid rgba(255, 214, 138, 0.08);
}

.header-inner,
.app-shell,
.site-footer {
  width: var(--content);
  margin: 0 auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: linear-gradient(135deg, #ffe6b5, var(--accent));
  color: var(--accent-deep);
  font-family: "Noto Serif SC", serif;
  font-weight: 700;
  box-shadow: 0 10px 28px rgba(255, 214, 138, 0.24);
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-title {
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand-meta {
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
  padding: 10px 14px;
  border-radius: 999px;
  transition: transform 180ms ease, color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.nav-button:hover,
.button:hover,
.text-link:hover,
.editorial-link:hover,
.navigator-link:hover,
.contact-link:hover {
  transform: translateY(-2px);
}

.nav-button:hover {
  color: var(--text);
}

.nav-button.is-active {
  color: var(--accent-deep);
  background: linear-gradient(135deg, #ffe7bc, var(--accent));
  box-shadow: 0 12px 30px rgba(255, 214, 138, 0.18);
  font-weight: 700;
}

.app-shell {
  padding: calc(var(--header-height) + 52px) 0 42px;
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(360px, 0.76fr) minmax(0, 1.24fr);
  gap: 20px;
  align-items: start;
}

.hero-panel,
.workspace {
  min-height: calc(100vh - var(--header-height) - 94px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(12, 18, 27, 0.92), rgba(9, 14, 22, 0.9));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-panel {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  display: grid;
  align-content: space-between;
  gap: 28px;
  padding: 34px 28px 30px 24px;
}

.eyebrow,
.panel-label,
.workspace-label,
.editorial-index,
.navigator-title {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-copy h1,
.hero-kicker,
.workspace-head h2,
.view-copy h3,
.poster-title,
.pillar-list h4 {
  margin: 0;
  font-family: "Noto Serif SC", serif;
}

.hero-copy h1 {
  margin-top: 18px;
  font-size: clamp(3.8rem, 6vw, 6.2rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.hero-kicker {
  margin-top: 18px;
  max-width: 12ch;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1.28;
}

.hero-lead,
.workspace-note,
.view-copy p,
.visual-note,
.editorial-link p,
.navigator-link p,
.contact-link span,
.qr-stage p,
.pillar-list p {
  color: var(--muted);
  line-height: 1.85;
}

.hero-lead {
  margin-top: 22px;
}

.hero-actions,
.panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.hero-actions {
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  font: inherit;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button-primary {
  color: var(--accent-deep);
  background: linear-gradient(135deg, #ffe7bc, var(--accent));
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.08);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-weight: 600;
  transition: transform 180ms ease, color 180ms ease;
}

.text-link::after {
  content: "↗";
}

.hero-signals {
  display: grid;
  gap: 14px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-signals span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-signals strong {
  display: block;
  margin-top: 10px;
  font-family: "Noto Serif SC", serif;
  font-size: 1.08rem;
  line-height: 1.45;
}

.hero-visual {
  display: grid;
  gap: 20px;
}

.hero-orbit {
  position: relative;
  width: min(360px, 100%);
  aspect-ratio: 1 / 1;
  margin: 0 auto;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background:
    radial-gradient(circle at center, rgba(255, 214, 138, 0.12), transparent 56%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--line);
}

.hero-orbit::before,
.hero-orbit::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  border: 1px solid rgba(255, 214, 138, 0.12);
}

.hero-orbit::before { inset: 18px; }
.hero-orbit::after { inset: 48px; opacity: 0.6; }

.hero-qr {
  width: min(232px, 64%);
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.34);
  position: relative;
  z-index: 1;
}

.orbit-chip {
  position: absolute;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(9, 14, 23, 0.92);
  border: 1px solid rgba(255, 214, 138, 0.18);
  font-size: 0.88rem;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.24);
}

.orbit-chip strong { color: var(--accent); }
.orbit-top { top: 22px; right: 24px; }
.orbit-left { left: 6px; bottom: 90px; }
.orbit-right { right: 4px; bottom: 34px; }

.workspace {
  display: grid;
  grid-template-rows: auto 1fr;
}

.workspace-head {
  padding: 30px 34px 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}

.workspace-head h2 {
  margin-top: 12px;
  font-size: clamp(2rem, 3vw, 3.4rem);
  line-height: 1.05;
}

.workspace-note {
  max-width: 320px;
  margin: 0;
}

.workspace-body {
  position: relative;
  min-height: 0;
}

.view-panel {
  height: 100%;
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(320px, 1.04fr);
  gap: 32px;
  padding: 30px 34px 34px;
  animation: panelFade 260ms ease;
}

.view-panel[hidden] { display: none; }

.view-copy,
.view-media {
  min-width: 0;
}

.view-copy {
  display: grid;
  align-content: start;
  gap: 16px;
}

.view-copy h3 {
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.02;
}

.view-lead {
  color: var(--text);
  font-size: 1.06rem;
  line-height: 1.78;
}

.detail-list {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.9;
}

.view-media {
  min-height: 0;
}

.poster-stage,
.qr-stage,
.novel-stage,
.contact-list,
.navigator-groups,
.editorial-list,
.pillar-list {
  height: 100%;
}

.poster-stage,
.qr-stage,
.novel-stage,
.contact-list,
.navigator-groups,
.editorial-list {
  border-radius: calc(var(--radius-xl) - 8px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.02));
}

.poster-stage {
  display: grid;
  align-content: space-between;
  gap: 18px;
  padding: 28px;
  background:
    radial-gradient(circle at top right, rgba(255, 214, 138, 0.12), transparent 28%),
    linear-gradient(180deg, #131926 0%, #0d131d 100%);
}

.poster-tag {
  justify-self: start;
  padding: 8px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ffe7bc, var(--accent));
  color: var(--accent-deep);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.poster-title {
  font-size: clamp(2.2rem, 3vw, 3.8rem);
  line-height: 0.95;
  max-width: 6ch;
}

.poster-copy { max-width: 26rem; }

.poster-chips,
.signal-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.poster-chips span,
.signal-strip span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
}

.poster-footer {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
}

.poster-footer strong {
  font-family: "Noto Serif SC", serif;
  font-size: 3.6rem;
  line-height: 1;
  color: var(--text);
}

.novel-stage {
  display: grid;
  grid-template-columns: minmax(360px, 1.04fr) minmax(250px, 0.96fr);
  gap: 24px;
  padding: 30px;
  align-items: start;
  background:
    radial-gradient(circle at top left, rgba(255, 214, 138, 0.1), transparent 24%),
    linear-gradient(180deg, #121a25 0%, #0c121a 100%);
}

.novel-cover {
  width: 100%;
  height: auto;
  min-height: 0;
  object-fit: contain;
  object-position: center center;
  background: transparent;
  border-radius: 24px;
  box-shadow: 0 22px 54px rgba(0, 0, 0, 0.34);
}

.novel-stage-copy {
  display: grid;
  gap: 14px;
  align-content: center;
}

.novel-stage-copy h4 {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  line-height: 1.08;
}

.view-panel[data-view-panel="novel"] {
  grid-template-columns: minmax(0, 0.7fr) minmax(680px, 1.3fr);
}

.view-panel[data-view-panel="novel"] .view-copy {
  padding-right: 6px;
}

.pillar-list {
  display: grid;
  gap: 18px;
  padding: 10px 0;
}

.pillar-list article {
  padding-left: 18px;
  border-left: 1px solid rgba(255, 214, 138, 0.18);
}

.pillar-list h4 {
  margin-bottom: 10px;
  font-size: 1.14rem;
}

.qr-stage {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 18px;
  padding: 28px;
  text-align: center;
}

.qr-stage img {
  width: min(280px, 100%);
  border-radius: 26px;
  box-shadow: 0 20px 54px rgba(0, 0, 0, 0.32);
}

.editorial-list,
.navigator-groups,
.contact-list {
  padding: 14px 22px;
  overflow: auto;
}

.editorial-list,
.navigator-groups {
  display: grid;
  gap: 10px;
}

.editorial-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 180ms ease;
}

.editorial-link h3 {
  margin: 0 0 6px;
  font-size: 1.08rem;
}

.editorial-arrow {
  color: var(--muted);
  font-size: 1.2rem;
}

.navigator-groups {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.navigator-column {
  padding-left: 16px;
  border-left: 1px solid rgba(255, 214, 138, 0.18);
}

.navigator-title {
  margin-bottom: 14px;
}

.navigator-list {
  display: grid;
  gap: 10px;
}

.navigator-link {
  display: grid;
  gap: 8px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 180ms ease;
}

.navigator-link strong {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.02rem;
}

.tool-tag {
  color: var(--accent);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.contact-list {
  display: grid;
  align-content: start;
  gap: 12px;
}

.contact-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 180ms ease, border-color 180ms ease;
}

.contact-link:hover {
  border-color: var(--line-strong);
}

.site-footer {
  padding: 0 0 40px;
  color: var(--muted);
  font-size: 0.9rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 540ms ease, transform 540ms ease;
}

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

@keyframes panelFade {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1180px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    position: static;
    min-height: auto;
  }

  .workspace,
  .hero-panel {
    min-height: auto;
  }
}

@media (max-width: 920px) {
  :root {
    --content: min(100vw - 24px, 1520px);
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    width: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .workspace-head {
    grid-template-columns: 1fr;
    display: grid;
  }

  .view-panel,
  .navigator-groups,
  .novel-stage {
    grid-template-columns: 1fr;
  }

  .hero-panel,
  .workspace {
    border-radius: 28px;
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding-top: calc(var(--header-height) + 96px);
  }

  .hero-panel,
  .workspace-head,
  .view-panel {
    padding-left: 20px;
    padding-right: 20px;
  }

  .workspace-head {
    padding-top: 24px;
  }

  .hero-copy h1 {
    font-size: clamp(3rem, 20vw, 4.4rem);
  }

  .hero-kicker {
    max-width: none;
  }

  .hero-actions,
  .panel-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .button,
  .text-link {
    width: 100%;
    justify-content: center;
  }

  .hero-orbit {
    width: min(320px, 100%);
  }

  .orbit-chip {
    font-size: 0.8rem;
  }

  .orbit-left { left: 0; bottom: 72px; }
  .orbit-right { right: 0; bottom: 18px; }

  .editorial-link {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .contact-link {
    align-items: flex-start;
    flex-direction: column;
  }
}