:root {
  color-scheme: light;
  --bg: #f4f0ea;
  --paper: #fbf8f2;
  --ink: #171411;
  --muted: #6d665e;
  --surface: rgba(255, 252, 246, 0.78);
  --surface-strong: rgba(255, 252, 246, 0.92);
  --surface-soft: rgba(255, 252, 246, 0.52);
  --surface-control: rgba(255, 252, 246, 0.72);
  --surface-card: rgba(255, 252, 246, 0.86);
  --surface-focus: rgba(255, 252, 246, 0.86);
  --map-bg: #f7f2ea;
  --soft: rgba(23, 20, 17, 0.08);
  --line: rgba(23, 20, 17, 0.16);
  --line-faint: rgba(25, 22, 18, 0.04);
  --grid-line: rgba(25, 22, 18, 0.035);
  --grid-dot-strong: rgba(25, 22, 18, 0.06);
  --grid-dot-soft: rgba(25, 22, 18, 0.04);
  --line-map: rgba(25, 22, 18, 0.16);
  --lattice-line: rgba(25, 22, 18, 0.09);
  --lattice-strong: rgba(var(--color-attention-rgb), 0.14);
  --inverse-bg: #191612;
  --inverse-ink: #fffaf0;
  --mix-cream: #fffaf0;
  --chip-ink: #191612;
  --side-shadow: 22px 0 70px rgba(48, 38, 27, 0.14);
  --side-shadow-collapsed: 6px 0 24px rgba(48, 38, 27, 0.06);
  --card-shadow: 0 22px 70px rgba(48, 38, 27, 0.12);
  --color-accent-human: #8d4b45;
  --color-accent-human-rgb: 141, 75, 69;
  --color-attention: #f54e00;
  --color-attention-rgb: 245, 78, 0;
  --color-attention-soft: rgba(var(--color-attention-rgb), 0.14);
  --color-atlas-cool-rgb: 79, 120, 145;
  --radius-pill: 999px;
  --radius-round: 50%;
  --size-touch: 44px;
  --focus-ring: 2px solid var(--color-attention);
  --focus-offset: 4px;
  --shadow: 0 28px 90px rgba(48, 38, 27, 0.15);
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --font-body: "IBM Plex Sans", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
}

:root[data-theme="dark"],
body[data-theme="dark"] {
  color-scheme: dark;
  --bg: #171512;
  --paper: #211e1a;
  --ink: #f4efe6;
  --muted: #a79f93;
  --surface: rgba(33, 30, 26, 0.78);
  --surface-strong: rgba(33, 30, 26, 0.94);
  --surface-soft: rgba(33, 30, 26, 0.64);
  --surface-control: rgba(33, 30, 26, 0.74);
  --surface-card: rgba(33, 30, 26, 0.9);
  --surface-focus: rgba(23, 21, 18, 0.92);
  --map-bg: #1c1915;
  --soft: rgba(244, 239, 230, 0.08);
  --line: rgba(244, 239, 230, 0.16);
  --line-faint: rgba(244, 239, 230, 0.06);
  --grid-line: rgba(244, 239, 230, 0.045);
  --grid-dot-strong: rgba(244, 239, 230, 0.08);
  --grid-dot-soft: rgba(244, 239, 230, 0.04);
  --line-map: rgba(244, 239, 230, 0.14);
  --lattice-line: rgba(244, 239, 230, 0.08);
  --lattice-strong: rgba(var(--color-attention-rgb), 0.18);
  --inverse-bg: #f4efe6;
  --inverse-ink: #171411;
  --mix-cream: #211e1a;
  --chip-ink: #f4efe6;
  --side-shadow: 22px 0 70px rgba(0, 0, 0, 0.34);
  --side-shadow-collapsed: 6px 0 24px rgba(0, 0, 0, 0.2);
  --card-shadow: 0 22px 70px rgba(0, 0, 0, 0.28);
  --color-accent-human: #c88775;
  --color-accent-human-rgb: 200, 135, 117;
  --color-attention: #ff6a22;
  --color-attention-rgb: 255, 106, 34;
  --color-atlas-cool-rgb: 114, 159, 184;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 18% 20%, rgba(var(--color-accent-human-rgb), 0.1), transparent 28%),
    radial-gradient(circle at 78% 18%, rgba(var(--color-atlas-cool-rgb), 0.1), transparent 26%),
    radial-gradient(circle at 50% 50%, var(--grid-dot-soft), transparent 1px),
    var(--bg);
  background-size: auto, auto, 36px 36px, auto;
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

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

button {
  font: inherit;
}

.atlas-page {
  width: min(1560px, 100%);
  margin: 0 auto;
  padding: clamp(1.25rem, 3vw, 3rem);
}

.atlas-hero {
  display: grid;
  gap: clamp(2.5rem, 7vw, 6rem);
  min-height: min(52vh, 620px);
  padding: 1rem 0 clamp(2rem, 5vw, 4rem);
}

.back-link {
  width: fit-content;
  color: var(--muted);
  font-size: 0.88rem;
  text-decoration: none;
  transition: color 180ms var(--ease);
}

.back-link:hover {
  color: var(--ink);
}

.atlas-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.7fr);
  gap: clamp(2rem, 8vw, 8rem);
  align-items: end;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 980px;
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: clamp(4.8rem, 12vw, 12.5rem);
  font-weight: 500;
  line-height: 0.85;
  letter-spacing: 0;
  overflow-wrap: normal;
  word-break: normal;
}

.title-compact {
  display: none;
}

.title-word {
  display: inline-block;
  white-space: nowrap;
}

.atlas-hero-grid > p {
  max-width: 560px;
  margin-bottom: 0.6rem;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  line-height: 1.65;
}

.atlas-shell {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.atlas-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: clamp(1rem, 2vw, 1.5rem);
  border-bottom: 1px solid var(--soft);
}

.atlas-toolbar h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 3rem);
  font-weight: 500;
  letter-spacing: 0;
}

.atlas-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: flex-end;
}

.atlas-game {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 5;
  display: grid;
  gap: 0.95rem;
  width: min(440px, calc(100% - 7rem));
  padding: 1.1rem;
  border: 1px solid color-mix(in srgb, var(--color-attention) 20%, var(--line));
  border-radius: 8px;
  background:
    radial-gradient(circle at 50% 50%, rgba(var(--color-attention-rgb), 0.12), transparent 2px) 0 0 / 14px 14px,
    color-mix(in srgb, var(--surface-strong) 86%, transparent);
  box-shadow: 0 18px 54px color-mix(in srgb, var(--ink) 12%, transparent);
  backdrop-filter: blur(14px);
  transform: translate(-50%, -50%);
  transition:
    opacity 220ms var(--ease),
    transform 260ms var(--ease),
    width 260ms var(--ease);
}

.atlas-stage.game-dismissed .atlas-game {
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -46%) scale(0.98);
}

.atlas-stage.has-active .atlas-game {
  top: 1rem;
  left: 4.8rem;
  width: min(340px, calc(100% - 7rem));
  opacity: 0.94;
  transform: none;
}

.atlas-game-copy {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0.35rem;
}

.atlas-game-copy .eyebrow {
  margin: 0;
  color: color-mix(in srgb, var(--color-attention) 70%, var(--muted));
}

.atlas-game-copy h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2vw, 2.1rem);
  font-weight: 500;
  line-height: 1;
}

.atlas-game-copy p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.atlas-game-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.58rem;
}

.atlas-game-actions > span {
  color: var(--muted);
  font-size: 0.78rem;
}

.atlas-game-orbit {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  width: 3rem;
  height: 3rem;
  border: 1px solid color-mix(in srgb, var(--color-attention) 36%, transparent);
  border-radius: 50%;
  opacity: 0.55;
  pointer-events: none;
}

.atlas-game-orbit::before,
.atlas-game-orbit::after {
  position: absolute;
  border-radius: 50%;
  content: "";
}

.atlas-game-orbit::before {
  inset: 0.72rem;
  background: color-mix(in srgb, var(--color-attention) 38%, transparent);
}

.atlas-game-orbit::after {
  top: 0.18rem;
  left: 50%;
  width: 0.46rem;
  height: 0.46rem;
  background: var(--color-attention);
  transform: translateX(-50%);
}

.atlas-draw,
.atlas-free-play,
.detail-action {
  min-height: var(--size-touch);
  border: 1px solid var(--inverse-bg);
  border-radius: var(--radius-pill);
  background: var(--inverse-bg);
  color: var(--inverse-ink);
  cursor: pointer;
  font: inherit;
  font-size: 0.84rem;
  transition:
    opacity 180ms var(--ease),
    transform 180ms var(--ease);
}

.atlas-draw {
  display: inline-flex;
  align-items: center;
  gap: 0.52rem;
  padding: 0.5rem 0.9rem 0.5rem 0.58rem;
}

.atlas-free-play {
  padding: 0.5rem 0.9rem;
  border-color: var(--line);
  background: var(--surface-control);
  color: var(--ink);
}

.atlas-draw:hover,
.atlas-free-play:hover,
.detail-action:hover {
  opacity: 0.84;
  transform: translateY(-1px);
}

.atlas-draw:disabled {
  cursor: wait;
  opacity: 0.82;
}

.dice-face {
  display: grid;
  place-items: center;
  width: 1.45rem;
  height: 1.45rem;
  border-radius: 6px;
  background: var(--inverse-ink);
  color: var(--inverse-bg);
  font-size: 0.76rem;
  font-weight: 700;
  line-height: 1;
}

.atlas-draw.rolling .dice-face {
  animation: dice-roll 740ms cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@keyframes dice-roll {
  from {
    transform: rotate(-12deg) translateY(0) scale(1);
  }

  50% {
    transform: rotate(18deg) translateY(-2px) scale(1.08);
  }

  to {
    transform: rotate(348deg) translateY(0) scale(1);
  }
}

.atlas-control,
.atlas-reset {
  min-height: var(--size-touch);
  padding: 0.55rem 0.78rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--surface-control);
  color: var(--muted);
  cursor: pointer;
  font-size: 0.82rem;
  transition:
    background 180ms var(--ease),
    border-color 180ms var(--ease),
    color 180ms var(--ease),
    transform 180ms var(--ease);
}

.atlas-control:hover,
.atlas-reset:hover {
  color: var(--ink);
  transform: translateY(-1px);
}

.atlas-control.active {
  border-color: var(--inverse-bg);
  background: var(--inverse-bg);
  color: var(--inverse-ink);
}

.atlas-body {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  min-height: 680px;
}

.atlas-index {
  position: absolute;
  inset: 0 auto 0 0;
  z-index: 8;
  width: min(320px, 82vw);
  padding: 0;
  border-right: 1px solid var(--line);
  background: var(--surface-strong);
  box-shadow: var(--side-shadow);
  backdrop-filter: blur(18px);
  transition:
    opacity 220ms var(--ease),
    transform 260ms var(--ease),
    visibility 220ms var(--ease);
}

.atlas-body.panel-collapsed .atlas-index {
  box-shadow: var(--side-shadow-collapsed);
  transform: translateX(calc(-100% + 40px));
}

.atlas-index-toggle {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 46px;
  padding: 0;
  border: 0;
  border-left: 1px solid var(--line-faint);
  background: color-mix(in srgb, var(--surface-soft) 70%, transparent);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
  transition:
    background 180ms var(--ease),
    color 180ms var(--ease);
}

.atlas-body.panel-collapsed .atlas-index-toggle {
  width: 40px;
  background: var(--surface-soft);
  color: color-mix(in srgb, var(--muted) 62%, transparent);
}

.atlas-body.panel-collapsed .atlas-index-toggle:hover,
.atlas-body.panel-collapsed .atlas-index-toggle:focus-visible {
  width: 44px;
  background: var(--surface-control);
  color: var(--ink);
}

.atlas-index-toggle span {
  writing-mode: vertical-rl;
  rotate: 180deg;
}

.atlas-index-toggle:hover,
.atlas-index-toggle:focus-visible {
  background: color-mix(in srgb, var(--inverse-bg) 8%, var(--surface-strong));
  color: var(--ink);
  outline: none;
}

.atlas-index-content {
  height: 100%;
  padding: clamp(1rem, 1.8vw, 1.4rem) calc(clamp(1rem, 1.8vw, 1.4rem) + 46px) clamp(1rem, 1.8vw, 1.4rem) clamp(1rem, 1.8vw, 1.4rem);
  overflow-y: auto;
  transition:
    opacity 180ms var(--ease),
    filter 180ms var(--ease);
}

.atlas-body.panel-collapsed .atlas-index-content {
  opacity: 0;
  filter: blur(2px);
  pointer-events: none;
}

.atlas-card {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 6;
  width: min(780px, calc(100% - 8rem));
  max-height: calc(100% - 3rem);
  overflow: hidden;
  padding: 0;
  border: 1px solid color-mix(in srgb, var(--active-color, var(--inverse-bg)) 32%, var(--line));
  border-radius: 8px;
  background:
    radial-gradient(circle at 50% 50%, rgba(247, 241, 232, 0.055), transparent 2px) 0 0 / 14px 14px,
    #151a1f;
  color: #f7f1e8;
  box-shadow: 0 34px 100px rgba(0, 0, 0, 0.32);
  transform: translate(-50%, -50%);
}

.atlas-card.is-empty {
  display: none;
}

.atlas-stat {
  display: grid;
  gap: 0.15rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--soft);
}

.atlas-stat strong {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 500;
  line-height: 1;
}

.atlas-stat span,
.atlas-source-note {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.atlas-island-list {
  display: grid;
  gap: 0.55rem;
  margin: 1.1rem 0;
}

.island-filter {
  display: grid;
  grid-template-columns: 0.7rem 1fr auto;
  gap: 0.6rem;
  align-items: center;
  width: 100%;
  padding: 0.68rem 0;
  border: 0;
  border-bottom: 1px solid var(--soft);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
}

.island-filter-dot {
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 50%;
  background: var(--island-color);
}

.island-filter strong {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
}

.island-filter span:last-child {
  color: var(--muted);
  font-size: 0.75rem;
}

.island-filter.active strong {
  text-decoration: underline;
  text-underline-offset: 0.22em;
}

.atlas-stage-wrap {
  position: relative;
  min-width: 0;
  padding: 0;
}

.atlas-stage {
  position: relative;
  overflow: hidden;
  min-height: 720px;
  --map-zoom: 1;
  background:
    linear-gradient(90deg, var(--lattice-strong) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    var(--map-bg);
  background-size: 176px 176px, 72px 72px, 72px 72px, auto;
  transition: filter 240ms var(--ease);
}

.atlas-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 50%, var(--grid-dot-strong), transparent 1px),
    radial-gradient(circle at 50% 50%, var(--grid-dot-soft), transparent 1px);
  background-position:
    0 0,
    36px 36px;
  background-size:
    72px 72px,
    72px 72px;
  opacity: 0.78;
}

.atlas-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.atlas-lines,
.atlas-islands,
.atlas-nodes {
  pointer-events: none;
  transform: scale(var(--map-zoom));
  transform-origin: 50% 50%;
  transition: transform 240ms var(--ease);
}

.atlas-islands,
.atlas-nodes {
  position: absolute;
  inset: 0;
}

.atlas-zoom {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 7;
  display: inline-flex;
  align-items: center;
  min-height: var(--size-touch);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--surface-strong) 84%, transparent);
  box-shadow: 0 10px 34px color-mix(in srgb, var(--ink) 10%, transparent);
  backdrop-filter: blur(12px);
}

.atlas-zoom button {
  display: grid;
  place-items: center;
  width: var(--size-touch);
  height: var(--size-touch);
  border: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 1.1rem;
}

.atlas-zoom button:disabled {
  cursor: default;
  opacity: 0.34;
}

.atlas-zoom span {
  min-width: 3rem;
  color: var(--muted);
  font-size: 0.78rem;
  text-align: center;
}

.atlas-lines line {
  stroke: var(--line-map);
  stroke-width: 0.12;
  vector-effect: non-scaling-stroke;
}

.island-label,
.atlas-node {
  position: absolute;
  left: calc(var(--x) * 1%);
  top: calc(var(--y) * 1%);
  pointer-events: auto;
  transform: translate(-50%, -50%);
}

.island-label {
  z-index: 1;
  width: 8rem;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-align: center;
  transition:
    opacity 220ms var(--ease),
    transform 220ms var(--ease);
}

.island-label strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.05;
}

.island-label span {
  display: block;
  margin-top: 0.3rem;
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.25;
}

.island-label::before {
  display: block;
  width: 2.7rem;
  height: 2.7rem;
  margin: 0 auto 0.55rem;
  border: 1px solid color-mix(in srgb, var(--island-color) 54%, var(--line));
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--island-color) 24%, transparent), transparent 2px) 0 0 / 10px 10px,
    color-mix(in srgb, var(--island-color) 54%, var(--mix-cream));
  background-size: 12px 12px, auto;
  content: "";
  box-shadow:
    5px 5px 0 color-mix(in srgb, var(--island-color) 16%, transparent),
    0 14px 32px color-mix(in srgb, var(--island-color) 14%, transparent);
}

.atlas-node {
  z-index: 2;
  display: grid;
  place-items: center;
  width: max(var(--node-size), var(--size-touch));
  height: max(var(--node-size), var(--size-touch));
  padding: 0;
  border: 0;
  border-radius: var(--radius-round);
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.22), transparent 2px) 0 0 / 10px 10px,
    color-mix(in srgb, var(--node-color) 68%, var(--mix-cream));
  background-size: 12px 12px, auto;
  box-shadow:
    0 12px 28px color-mix(in srgb, var(--node-color) 14%, transparent);
  color: var(--ink);
  cursor: pointer;
  transition:
    opacity 220ms var(--ease),
    transform 220ms var(--ease),
    box-shadow 220ms var(--ease),
    filter 220ms var(--ease);
}

.atlas-node::before {
  display: none;
  width: 0.42rem;
  height: 0.42rem;
  background: color-mix(in srgb, var(--node-color) 26%, var(--mix-cream));
  content: "";
}

.atlas-node::after {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 0.7rem);
  z-index: 5;
  width: max-content;
  max-width: min(15rem, 38vw);
  overflow: hidden;
  padding: 0.46rem 0.58rem;
  border: 1px solid color-mix(in srgb, var(--node-color) 46%, var(--line));
  border-radius: 8px;
  background:
    radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--node-color) 18%, transparent), transparent 2px) 0 0 / 10px 10px,
    var(--inverse-bg);
  color: var(--inverse-ink);
  content: attr(data-node-label);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;
  opacity: 0;
  pointer-events: none;
  text-align: left;
  text-overflow: ellipsis;
  transform: translate(-50%, 0.35rem);
  transition:
    opacity 160ms var(--ease),
    transform 160ms var(--ease);
  white-space: nowrap;
}

.atlas-node:hover {
  box-shadow:
    0 14px 30px color-mix(in srgb, var(--node-color) 18%, transparent);
  filter: saturate(1.14);
  transform: translate(-50%, -50%) scale(1.06);
}

.atlas-node:hover::after,
.atlas-node:focus-visible::after {
  opacity: 1;
  transform: translate(-50%, 0);
}

.atlas-node:focus-visible {
  box-shadow:
    0 0 0 2px var(--surface-focus),
    0 0 0 4px color-mix(in srgb, var(--node-color) 22%, transparent);
  filter: saturate(1.08);
  outline: none;
  transform: translate(-50%, -50%) scale(1.04);
}

.atlas-node.active {
  box-shadow:
    0 0 0 2px color-mix(in srgb, var(--node-color) 42%, var(--surface-focus)),
    0 8px 18px color-mix(in srgb, var(--node-color) 18%, transparent);
  filter: saturate(1.08);
  transform: translate(-50%, -50%) scale(1.03);
}

.atlas-node.seen:not(.active) {
  opacity: 0.76;
}

.atlas-node.seen:not(.active)::before {
  opacity: 0.7;
}

.atlas-stage.is-filtered .atlas-node:not(.visible),
.atlas-stage.is-filtered .island-label:not(.visible) {
  opacity: 0.18;
}

.atlas-stage.has-active .atlas-node:not(.active),
.atlas-stage.has-active .island-label {
  opacity: 0.34;
}

.atlas-card h3 {
  margin-bottom: 0.7rem;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 2.8vw, 2.9rem);
  font-weight: 500;
  line-height: 0.95;
  letter-spacing: 0;
}

.atlas-card p {
  color: rgba(247, 241, 232, 0.72);
  font-size: 0.95rem;
  line-height: 1.62;
}

.atlas-card-empty {
  position: static;
}

.detail-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(220px, 0.95fr) minmax(0, 1.35fr);
  min-height: 410px;
  animation: card-in 260ms var(--ease);
}

.detail-preview {
  position: relative;
  display: grid;
  align-content: end;
  min-height: 100%;
  padding: 1.25rem;
  overflow: hidden;
  border-right: 1px solid rgba(247, 241, 232, 0.1);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--active-color) 48%, #151a1f), #11161a 68%),
    #151a1f;
}

.detail-preview::before {
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(247, 241, 232, 0.12);
  border-radius: 7px;
  background:
    linear-gradient(90deg, rgba(247, 241, 232, 0.06) 1px, transparent 1px),
    linear-gradient(rgba(247, 241, 232, 0.06) 1px, transparent 1px);
  background-size: 38px 38px;
  content: "";
}

.detail-preview.has-image {
  background: #11161a;
}

.detail-preview.has-image::before {
  inset: 0;
  border: 0;
  border-radius: 0;
  background:
    linear-gradient(180deg, transparent 38%, rgba(17, 22, 26, 0.82)),
    linear-gradient(90deg, rgba(17, 22, 26, 0.22), transparent 42%);
  z-index: 1;
}

.detail-preview img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(0.94);
}

.detail-preview-dot {
  position: absolute;
  top: 28%;
  left: 28%;
  width: 5rem;
  height: 5rem;
  border-radius: 50%;
  background: color-mix(in srgb, var(--active-color) 74%, #f7f1e8);
  box-shadow:
    78px 52px 0 -1.25rem color-mix(in srgb, var(--active-color) 50%, #f7f1e8),
    124px -28px 0 -1.6rem color-mix(in srgb, var(--active-color) 32%, #f7f1e8);
  opacity: 0.88;
}

.detail-preview-line {
  position: absolute;
  top: 44%;
  left: 28%;
  width: 58%;
  height: 1px;
  background: rgba(247, 241, 232, 0.18);
  rotate: 18deg;
}

.detail-preview-line-short {
  top: 34%;
  left: 42%;
  width: 34%;
  rotate: -22deg;
}

.detail-preview div {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 0.28rem;
}

.detail-preview span:not(.detail-preview-dot, .detail-preview-line) {
  color: rgba(247, 241, 232, 0.56);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.detail-preview strong {
  color: #f7f1e8;
  font-size: 1rem;
  line-height: 1.2;
  word-break: break-word;
}

.detail-content {
  display: grid;
  gap: 0.9rem;
  align-content: start;
  max-height: min(520px, calc(100vh - 12rem));
  padding: clamp(1.2rem, 2vw, 1.6rem);
  overflow-y: auto;
}

@keyframes card-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.detail-pill {
  padding: 0.32rem 0.55rem;
  border: 1px solid rgba(247, 241, 232, 0.16);
  border-radius: 999px;
  color: rgba(247, 241, 232, 0.62);
  font-size: 0.72rem;
}

.topic-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.42rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.topic-list li {
  padding: 0.44rem 0.58rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--active-color) 28%, rgba(247, 241, 232, 0.12));
  color: color-mix(in srgb, var(--active-color) 38%, #f7f1e8);
  font-size: 0.78rem;
  font-weight: 600;
}

.detail-block {
  padding-top: 0.9rem;
  border-top: 1px solid rgba(247, 241, 232, 0.1);
}

.detail-block strong {
  display: block;
  margin-bottom: 0.35rem;
  color: rgba(247, 241, 232, 0.78);
  font-size: 0.72rem;
  letter-spacing: 0;
  text-transform: uppercase;
}

.detail-link-block {
  padding-top: 0.1rem;
  border-top: 0;
}

.detail-links {
  display: grid;
  gap: 0.5rem;
}

.detail-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  min-height: 42px;
  padding: 0.7rem 0.78rem;
  border: 1px solid color-mix(in srgb, var(--active-color) 28%, rgba(247, 241, 232, 0.14));
  border-radius: 8px;
  background: color-mix(in srgb, var(--active-color) 16%, rgba(247, 241, 232, 0.06));
  color: #f7f1e8;
  font-size: 0.9rem;
  text-decoration: none;
}

.detail-link span {
  color: color-mix(in srgb, var(--active-color) 30%, #f7f1e8);
}

.detail-link:hover {
  border-color: color-mix(in srgb, var(--active-color) 56%, rgba(247, 241, 232, 0.2));
  color: #fff;
}

.detail-note p {
  margin: 0;
  max-width: 36rem;
  color: rgba(247, 241, 232, 0.66);
  font-size: 0.84rem;
  line-height: 1.55;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding-top: 0.35rem;
}

.detail-action {
  padding: 0.52rem 0.78rem;
}

.detail-action + .detail-action {
  border-color: rgba(247, 241, 232, 0.22);
  background: transparent;
  color: #f7f1e8;
}

.detail-close {
  min-height: var(--size-touch);
  padding: 0.45rem 0.74rem;
  border: 1px solid rgba(247, 241, 232, 0.18);
  border-radius: var(--radius-pill);
  background: rgba(247, 241, 232, 0.06);
  color: rgba(247, 241, 232, 0.68);
  cursor: pointer;
  font: inherit;
  font-size: 0.78rem;
  line-height: 1;
}

.detail-close:hover {
  color: #fff;
}

.detail-close-top {
  position: absolute;
  top: 1rem;
  right: 1rem;
}

@media (max-width: 1120px) {
  .atlas-body {
    grid-template-columns: 1fr;
  }

  .atlas-card {
    width: min(720px, calc(100% - 6.5rem));
  }
}

@media (max-width: 980px) {
  .title-full {
    display: none;
  }

  .title-compact {
    display: inline;
  }

  h1 {
    max-width: min(100%, 9.5ch);
    font-size: clamp(3.3rem, 14vw, 6.2rem);
    overflow-wrap: normal;
    word-break: normal;
  }

  .atlas-body {
    display: block;
    min-height: auto;
  }

  .atlas-index {
    width: min(360px, calc(100% - 2rem));
    border-right: 1px solid var(--line);
  }

  .atlas-card {
    position: static;
    width: auto;
    max-height: none;
    margin: 1rem;
    border: 1px solid color-mix(in srgb, var(--active-color, var(--inverse-bg)) 32%, var(--line));
  }

  .detail-card {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .detail-preview {
    min-height: 180px;
    border-right: 0;
    border-bottom: 1px solid rgba(247, 241, 232, 0.1);
  }

  .detail-content {
    max-height: none;
  }

  .atlas-stage-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .atlas-stage {
    width: max(760px, 136vw);
    min-height: 620px;
    padding: 0;
  }

  .atlas-game {
    position: sticky;
    top: 1rem;
    left: 3.25rem;
    width: min(420px, calc(100vw - 5.25rem));
    margin: 1rem 1rem 1rem 3.25rem;
    transform: none;
  }

  .atlas-game-copy h3 {
    font-size: clamp(1.32rem, 5vw, 1.65rem);
    line-height: 1.05;
  }

  .atlas-game-copy p:not(.eyebrow) {
    font-size: 0.86rem;
    line-height: 1.5;
  }

  .atlas-stage.game-dismissed .atlas-game {
    transform: translateY(-0.5rem) scale(0.98);
  }

  .atlas-zoom {
    position: fixed;
    right: 1rem;
    bottom: max(1rem, env(safe-area-inset-bottom));
    left: auto;
    top: auto;
    z-index: 30;
    min-height: 48px;
    margin: 0;
    border-color: color-mix(in srgb, var(--ink) 24%, var(--line));
    background: color-mix(in srgb, var(--surface-strong) 94%, transparent);
    box-shadow: 0 14px 38px color-mix(in srgb, var(--ink) 16%, transparent);
  }

  .atlas-islands,
  .atlas-nodes {
    position: absolute;
    inset: 0;
  }

  .atlas-node:hover,
  .atlas-node:focus-visible,
  .atlas-node.active {
    transform: translate(-50%, -50%) scale(1.04);
  }
}

@media (max-width: 780px) {
  .atlas-page {
    padding: 1rem;
  }

  .atlas-hero {
    min-height: auto;
    gap: 4rem;
    padding-bottom: 1rem;
  }

  .atlas-hero-grid,
  .atlas-toolbar,
  .atlas-game {
    display: grid;
    grid-template-columns: 1fr;
  }

  .atlas-toolbar {
    align-items: start;
  }

  .atlas-controls {
    justify-content: flex-start;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(3rem, 13vw, 4.4rem);
  }

  .title-compact {
    display: grid;
    gap: 0.04em;
  }

  .atlas-game-actions {
    justify-content: flex-start;
  }

}

@media (max-width: 640px) {
  .atlas-shell {
    overflow: hidden;
  }

  .atlas-toolbar {
    padding: 1.15rem;
  }

  .atlas-toolbar h2 {
    font-size: clamp(2.25rem, 10vw, 3rem);
    line-height: 1.08;
  }

  .atlas-controls {
    gap: 0.5rem;
    width: 100%;
  }

  .atlas-control,
  .atlas-reset {
    min-height: 48px;
    padding-inline: 1.05rem;
  }

  .atlas-index {
    inset: 0 auto auto 0;
    z-index: 20;
    width: min(310px, calc(100% - 1.5rem));
    border-right: 0;
    background: transparent;
    box-shadow: none;
    pointer-events: none;
    transform: none;
  }

  .atlas-body.panel-collapsed .atlas-index {
    box-shadow: none;
    transform: none;
  }

  .atlas-index-toggle,
  .atlas-body.panel-collapsed .atlas-index-toggle,
  .atlas-body.panel-collapsed .atlas-index-toggle:hover,
  .atlas-body.panel-collapsed .atlas-index-toggle:focus-visible {
    position: relative;
    top: auto;
    right: auto;
    bottom: auto;
    width: auto;
    min-width: 48px;
    height: 48px;
    margin: 0.75rem 0 0 0.75rem;
    padding: 0 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    background: color-mix(in srgb, var(--surface-strong) 92%, transparent);
    color: var(--ink);
    box-shadow: 0 12px 30px color-mix(in srgb, var(--ink) 12%, transparent);
    pointer-events: auto;
  }

  .atlas-index-toggle span {
    writing-mode: horizontal-tb;
    rotate: 0deg;
  }

  .atlas-index-content {
    display: block;
    width: min(310px, calc(100vw - 2.5rem));
    max-height: min(62vh, 480px);
    margin: 0.5rem 0 0 0.75rem;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-strong);
    box-shadow: 0 18px 54px color-mix(in srgb, var(--ink) 18%, transparent);
    pointer-events: auto;
  }

  .atlas-body.panel-collapsed .atlas-index-content {
    display: none;
    opacity: 0;
    visibility: hidden;
    filter: none;
    pointer-events: none;
  }

  .atlas-body:not(.panel-collapsed) .atlas-index-content {
    opacity: 1;
    visibility: visible;
    filter: none;
  }

  .atlas-stage {
    width: max(720px, 190vw);
    min-height: 760px;
  }

  .atlas-game {
    top: 4.2rem;
    left: 0;
    z-index: 18;
    width: min(330px, calc(100vw - 2.25rem));
    margin: 0 0 0 0.75rem;
    padding: 1rem;
  }

  .atlas-game-copy h3 {
    font-size: clamp(1.62rem, 8vw, 2rem);
  }

  .atlas-game-copy p:not(.eyebrow) {
    font-size: 0.94rem;
  }

  .atlas-game-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  .atlas-draw,
  .atlas-free-play {
    justify-content: center;
    width: 100%;
  }

  .atlas-game-actions > span {
    justify-self: start;
    font-size: 0.84rem;
  }

  .atlas-zoom {
    right: 1rem;
    min-height: 52px;
  }

  .atlas-zoom button {
    width: 52px;
    height: 52px;
    font-size: 1.25rem;
  }

  .atlas-zoom span {
    min-width: 4rem;
    font-size: 0.9rem;
  }
}