/* AIGame44 — Arc deck: left rail + bento + row catalog (dark) */
:root {
  --arc-bg: #070a10;
  --arc-surface: #0f1419;
  --arc-elevated: #151c24;
  --arc-border: rgba(148, 163, 184, 0.12);
  --arc-text: #e2e8f0;
  --arc-muted: #94a3b8;
  --arc-cyan: #22d3ee;
  --arc-cyan-dim: rgba(34, 211, 238, 0.15);
  --arc-magenta: #e879f9;
  --arc-radius: 14px;
  --arc-font: "DM Sans", system-ui, sans-serif;
  --arc-mono: "JetBrains Mono", ui-monospace, monospace;
  --arc-rail-w: 260px;
  --arc-header-h: 56px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--arc-font);
  font-size: 16px;
  line-height: 1.55;
  color: var(--arc-text);
  background: var(--arc-bg);
  min-height: 100vh;
}

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

a {
  color: var(--arc-cyan);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

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

.skip-link {
  position: absolute;
  left: 12px;
  top: -100px;
  z-index: 1000;
  padding: 10px 16px;
  background: var(--arc-cyan);
  color: #020617;
  font-weight: 700;
  border-radius: 8px;
}
.skip-link:focus {
  top: 12px;
}

/* —— Shell & rail —— */
.shell--arc {
  display: flex;
  min-height: 100vh;
}

.arc-rail {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--arc-rail-w);
  padding: 1.25rem 1rem;
  background: linear-gradient(180deg, #0a0e14 0%, #070a10 100%);
  border-right: 1px solid var(--arc-border);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  z-index: 50;
}

.arc-rail__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.arc-rail__brand img {
  height: 44px;
  width: auto;
  border-radius: 10px;
}
.arc-rail__title {
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--arc-text);
  line-height: 1.2;
}

.arc-rail__nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.arc-rail__nav a {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--arc-muted);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  border: 1px solid transparent;
}
.arc-rail__nav a:hover {
  color: var(--arc-text);
  background: var(--arc-elevated);
}
.arc-rail__nav a[aria-current="page"] {
  color: var(--arc-cyan);
  background: var(--arc-cyan-dim);
  border-color: rgba(34, 211, 238, 0.25);
}

.arc-rail__search form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.arc-rail__search input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--arc-border);
  background: var(--arc-surface);
  color: var(--arc-text);
  font: inherit;
}
.arc-rail__search button {
  padding: 9px 12px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(135deg, var(--arc-cyan), #06b6d4);
  color: #020617;
  font-weight: 700;
  cursor: pointer;
  font-size: 0.85rem;
}

.arc-rail__foot {
  margin-top: auto;
  font-size: 0.75rem;
  color: var(--arc-muted);
  line-height: 1.4;
}

.arc-main {
  flex: 1;
  margin-left: var(--arc-rail-w);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Mobile top bar */
.arc-topbar {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  background: var(--arc-surface);
  border-bottom: 1px solid var(--arc-border);
  position: sticky;
  top: 0;
  z-index: 40;
}
.arc-topbar__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--arc-text);
}
.arc-topbar__brand img {
  height: 36px;
  border-radius: 8px;
}

.nav-toggle {
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--arc-border);
  background: var(--arc-elevated);
  color: var(--arc-text);
  font-weight: 700;
  cursor: pointer;
}

.mobile-panel {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.72);
  z-index: 60;
  padding: 72px 20px 20px;
}
body.nav-open .mobile-panel {
  display: block;
}
.mobile-panel-inner {
  background: var(--arc-surface);
  border-radius: var(--arc-radius);
  border: 1px solid var(--arc-border);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 360px;
  margin: 0 auto;
}
.mobile-panel-inner a {
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--arc-text);
  font-weight: 600;
}
.mobile-panel-inner a:hover {
  background: var(--arc-elevated);
}

@media (max-width: 960px) {
  .arc-rail {
    display: none;
  }
  .arc-main {
    margin-left: 0;
  }
  .arc-topbar {
    display: flex;
  }
}

/* —— Main content —— */
.arc-page {
  flex: 1;
  padding: 1.75rem 1.75rem 5.5rem;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.arc-kicker {
  font-family: var(--arc-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--arc-magenta);
  margin: 0 0 0.5rem;
}

.arc-h1 {
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 800;
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.arc-lede {
  color: var(--arc-muted);
  max-width: 52ch;
  margin: 0 0 1.75rem;
}

.arc-section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin: 2rem 0 1rem;
}
.arc-section-head h2 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
}

.arc-link {
  font-family: var(--arc-mono);
  font-size: 0.8rem;
  color: var(--arc-cyan);
  text-decoration: none;
}
.arc-link:hover {
  text-decoration: underline;
}

/* Bento featured */
.arc-bento-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.arc-bento-head h2 {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
}
.arc-bento-ctrl {
  display: flex;
  gap: 6px;
}
.arc-bento-ctrl button {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--arc-border);
  background: var(--arc-elevated);
  color: var(--arc-text);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}
.arc-bento-ctrl button:hover {
  border-color: var(--arc-cyan);
  color: var(--arc-cyan);
}

.arc-bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: 200px 160px;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 6px;
  scroll-snap-type: x mandatory;
}
@media (max-width: 900px) {
  .arc-bento {
    grid-template-columns: repeat(4, minmax(200px, 1fr));
    grid-template-rows: 180px 140px;
  }
}

.arc-bento__cell {
  position: relative;
  border-radius: var(--arc-radius);
  overflow: hidden;
  border: 1px solid var(--arc-border);
  background: var(--arc-surface);
  scroll-snap-align: start;
}
.arc-bento__cell--a {
  grid-column: span 2;
  grid-row: span 2;
}
.arc-bento__cell--b {
  grid-column: span 2;
}
.arc-bento__cell a {
  display: block;
  height: 100%;
  color: inherit;
  text-decoration: none;
}
.arc-bento__cell figure {
  margin: 0;
  height: 100%;
}
.arc-bento__cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.arc-bento__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 14px;
  background: linear-gradient(transparent, rgba(2, 6, 23, 0.92));
}
.arc-bento__cap h3 {
  margin: 0 0 4px;
  font-size: 1rem;
  font-weight: 800;
}
.arc-bento__cap p {
  margin: 0;
  font-size: 0.78rem;
  color: var(--arc-muted);
  font-family: var(--arc-mono);
}

/* Category chips */
.arc-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 1rem 0 1.5rem;
}
.arc-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--arc-elevated);
  border: 1px solid var(--arc-border);
  color: var(--arc-text);
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
}
.arc-chip:hover {
  border-color: var(--arc-cyan);
  color: var(--arc-cyan);
}
.arc-chip span {
  font-family: var(--arc-mono);
  font-size: 0.72rem;
  color: var(--arc-magenta);
}

/* Row list */
.arc-rows {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.arc-row {
  display: grid;
  grid-template-columns: 132px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 12px 14px;
  border-radius: var(--arc-radius);
  background: var(--arc-surface);
  border: 1px solid var(--arc-border);
}
@media (max-width: 560px) {
  .arc-row {
    grid-template-columns: 96px 1fr;
    grid-template-rows: auto auto;
  }
  .arc-row__go {
    grid-column: 1 / -1;
  }
}

.arc-row__thumb {
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--arc-elevated);
}
.arc-row__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.arc-row__body h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 700;
}
.arc-row__body h3 a {
  color: var(--arc-text);
  text-decoration: none;
}
.arc-row__body h3 a:hover {
  color: var(--arc-cyan);
}

.arc-row__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--arc-muted);
  font-family: var(--arc-mono);
}

.arc-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--arc-cyan-dim);
  color: var(--arc-cyan);
  font-weight: 700;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.arc-row__go .arc-btn {
  white-space: nowrap;
}

.arc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 800;
  font-size: 0.85rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
}
.arc-btn--primary {
  background: linear-gradient(135deg, var(--arc-cyan), #a78bfa);
  color: #020617;
}
.arc-btn--ghost {
  background: transparent;
  border: 1px solid var(--arc-border);
  color: var(--arc-text);
}

/* Ads */
.ad-slot {
  margin: 1rem 0;
  padding: 12px;
  border-radius: var(--arc-radius);
  border: 1px dashed rgba(148, 163, 184, 0.25);
  background: rgba(15, 20, 25, 0.6);
}
.ad-slot-hint {
  margin: 0 0 8px;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--arc-muted);
}
.ad-slot-inner {
  min-height: 48px;
}

/* Tags toolbar — inside .arc-page so negative margins align with page padding; sticky top matches mobile topbar */
.arc-page:has(> .arc-tagbar:first-child) {
  padding-top: 0;
}
.arc-page > .arc-tagbar:first-child {
  margin: 0 -1.75rem 1.25rem;
}
.arc-tagbar {
  position: sticky;
  top: 0;
  z-index: 30;
  padding: 10px 1.75rem;
  background: rgba(7, 10, 16, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--arc-border);
  overflow-x: auto;
}
@media (max-width: 960px) {
  .arc-tagbar {
    top: var(--arc-header-h);
  }
}
.arc-tagbar__inner {
  display: flex;
  gap: 8px;
  flex-wrap: nowrap;
  min-width: min-content;
}
.arc-tagbar__inner a {
  flex: 0 0 auto;
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--arc-muted);
  border: 1px solid var(--arc-border);
  text-decoration: none;
}
.arc-tagbar__inner a:hover,
.arc-tagbar__inner a.is-active,
.arc-tagbar__inner a.active {
  color: #020617;
  background: var(--arc-cyan);
  border-color: var(--arc-cyan);
}

/* Search */
.arc-search-banner {
  font-family: var(--arc-mono);
  color: var(--arc-muted);
  margin-top: 0.5rem;
}

.arc-empty {
  padding: 2rem;
  text-align: center;
  border-radius: var(--arc-radius);
  border: 1px solid var(--arc-border);
  background: var(--arc-surface);
}

/* Detail */
.arc-detail {
  max-width: 1100px;
}

.arc-crumb {
  font-size: 0.85rem;
  color: var(--arc-muted);
  margin-bottom: 1rem;
}
.arc-crumb a {
  color: var(--arc-muted);
}
.arc-crumb a:hover {
  color: var(--arc-cyan);
}

.arc-detail__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 1rem;
}
.arc-detail__title {
  margin: 0;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 900;
  letter-spacing: -0.02em;
}
.arc-detail__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
}
.arc-detail__tags li span {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--arc-elevated);
  border: 1px solid var(--arc-border);
  color: var(--arc-muted);
}
.arc-detail__tags .arc-tag--accent {
  border-color: rgba(232, 121, 249, 0.4);
  color: var(--arc-magenta);
}

.arc-ai-lead {
  color: var(--arc-muted);
  margin-bottom: 1.5rem;
  max-width: 70ch;
}

.arc-detail__grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 1.5rem;
  align-items: start;
}
.arc-detail__primary {
  min-width: 0;
}
@media (max-width: 900px) {
  .arc-detail__grid {
    grid-template-columns: 1fr;
  }
}

.game-stage {
  border-radius: var(--arc-radius);
  border: 1px solid var(--arc-border);
  background: var(--arc-surface);
  overflow: hidden;
}

.game-stage-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--arc-elevated);
  border-bottom: 1px solid var(--arc-border);
}
.game-mobile-exit {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--arc-border);
  background: var(--arc-surface);
  color: var(--arc-text);
  cursor: pointer;
  font-size: 0.85rem;
}
.game-stage-traffic {
  display: flex;
  gap: 6px;
}
.game-stage-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--arc-border);
}
.game-stage-dot--close {
  background: #f87171;
}
.game-stage-dot--min {
  background: #fbbf24;
}
.game-stage-dot--max {
  background: #4ade80;
}
.game-stage-label {
  margin-left: auto;
  font-family: var(--arc-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--arc-muted);
}

.game-stage-viewport {
  position: relative;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 16 / 10;
  background: #020617;
}

.game-play-poster {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.game-poster-cover {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
}
.game-play-poster-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(transparent 40%, rgba(2, 6, 23, 0.85));
}
.game-play-poster-text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--arc-text);
}

.game-main-embed {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.game-stage-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 12px;
  border-top: 1px solid var(--arc-border);
}

.game-stage.is-mobile-theater {
  position: fixed;
  inset: 0;
  z-index: 200;
  border-radius: 0;
  border: none;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
  box-sizing: border-box;
}
.game-stage.is-mobile-theater .game-stage-bar,
.game-stage.is-mobile-theater .game-stage-footer {
  flex-shrink: 0;
}
.game-stage.is-mobile-theater .game-stage-viewport {
  flex: 1 1 auto;
  width: 100%;
  min-height: 0;
  height: auto;
  aspect-ratio: unset;
}
body.game-detail-no-scroll {
  overflow: hidden;
}

.game-panel {
  margin-top: 1.25rem;
  padding: 1rem 1.1rem;
  border-radius: var(--arc-radius);
  border: 1px solid var(--arc-border);
  background: var(--arc-surface);
}
.game-panel-head {
  margin-bottom: 10px;
}
.game-panel-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
}

.game-feature-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}
.game-feature-card {
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--arc-elevated);
  font-size: 0.9rem;
}

.game-faq-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.game-faq-card {
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--arc-border);
}
.game-faq-q {
  margin: 0 0 6px;
  font-size: 0.95rem;
}
.game-faq-a {
  margin: 0;
  color: var(--arc-muted);
  font-size: 0.88rem;
}

.arc-facts {
  padding: 1rem;
  border-radius: var(--arc-radius);
  border: 1px solid var(--arc-border);
  background: var(--arc-surface);
  position: sticky;
  top: 1rem;
}
.arc-facts h2 {
  margin: 0 0 12px;
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--arc-muted);
}
.arc-facts dl {
  margin: 0;
}
.arc-facts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--arc-border);
  font-size: 0.88rem;
}
.arc-facts-row:last-child {
  border-bottom: 0;
}
.arc-facts-row dt {
  color: var(--arc-muted);
  margin: 0;
}
.arc-facts-row dd {
  margin: 0;
  font-weight: 600;
  text-align: right;
}

.comment-form label,
.arc-form label {
  display: block;
  margin-bottom: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--arc-muted);
}
.comment-form input,
.comment-form textarea,
.arc-form input,
.arc-form textarea {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--arc-border);
  background: var(--arc-elevated);
  color: var(--arc-text);
  font: inherit;
}
.comment-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}
.comment-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--arc-border);
}
.comment-meta {
  margin: 0 0 6px;
  font-size: 0.8rem;
  color: var(--arc-muted);
}
.comment-body {
  margin: 0;
  font-size: 0.9rem;
}

.arc-legal {
  max-width: 720px;
}
.arc-legal h1 {
  margin-top: 0;
}
.arc-legal h2,
.arc-legal h3 {
  margin: 1.5rem 0 0.75rem;
  font-weight: 800;
  color: var(--arc-text);
}
.arc-legal p,
.arc-legal li {
  color: var(--arc-muted);
}
.arc-legal ul {
  padding-left: 1.25rem;
}

/* Footer */
.arc-footer {
  margin-top: auto;
  padding: 1.5rem 1.75rem 2rem;
  border-top: 1px solid var(--arc-border);
  background: var(--arc-surface);
}
.arc-footer__grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  gap: 1rem;
}
@media (min-width: 640px) {
  .arc-footer__grid {
    grid-template-columns: 1fr auto;
    align-items: start;
  }
}
.arc-footer__note {
  margin: 0;
  color: var(--arc-muted);
  font-size: 0.88rem;
  max-width: 52ch;
}
.arc-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
}
.arc-footer__links a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--arc-muted);
}
.arc-footer__links a:hover {
  color: var(--arc-cyan);
}
.arc-footer__copy {
  max-width: 1200px;
  margin: 1rem auto 0;
  font-size: 0.78rem;
  color: var(--arc-muted);
}

.arc-bottom {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
  background: rgba(15, 20, 25, 0.92);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--arc-border);
  z-index: 45;
}
.arc-bottom nav {
  display: flex;
  justify-content: space-around;
  max-width: 480px;
  margin: 0 auto;
}
.arc-bottom a {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--arc-muted);
  text-decoration: none;
}
.arc-bottom a[aria-current="page"] {
  color: var(--arc-cyan);
}

@media (max-width: 960px) {
  .arc-bottom {
    display: block;
  }
}

@media (any-pointer: coarse) {
  .arc-row,
  .arc-chip,
  .arc-btn {
    min-height: 44px;
  }
}