:root {
  --eclipse-gold: #d9aa4c;
  --eclipse-gold-bright: #f6d483;
  --eclipse-ink: #05080d;
  --eclipse-blue: #101a2b;
  --eclipse-panel: rgba(7, 12, 20, 0.92);
  --eclipse-copy: #f2ead8;
  --eclipse-muted: #b8aa91;
  --eclipse-line: rgba(217, 170, 76, 0.34);
  --eclipse-asset-root: url("/assets/checkers/clockwork-eclipse/shell-background.svg");
}

body.checkers-premium-active {
  background:
    radial-gradient(circle at 50% -10%, rgba(217, 170, 76, 0.18), transparent 38rem),
    linear-gradient(rgba(2, 6, 12, 0.52), rgba(2, 6, 12, 0.72)),
    var(--eclipse-asset-root) center / cover fixed;
}

body.checkers-premium-running {
  width: 100%;
  height: 100dvh;
  min-height: 0;
  overflow: hidden;
}

body.checkers-premium-running .shell {
  box-sizing: border-box;
  width: 100%;
  max-width: none;
  height: 100dvh;
  min-height: 0;
  padding: clamp(8px, 1.2vw, 16px);
  overflow: hidden;
}

body.checkers-premium-running #error-banner:not([hidden]) {
  position: fixed;
  inset: 10px 50% auto auto;
  z-index: 100;
  width: min(560px, calc(100vw - 24px));
  transform: translateX(50%);
}

body.checkers-premium-running .checkers-premium-match.panel {
  box-sizing: border-box;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  gap: clamp(6px, 0.8vh, 10px);
  width: 100%;
  height: 100%;
  min-height: 0;
  padding: clamp(9px, 1.2vw, 16px);
  overflow: hidden;
  border: 1px solid var(--eclipse-line);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(32, 43, 62, 0.34), transparent 30%),
    rgba(4, 8, 14, 0.9);
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.56), inset 0 1px rgba(255, 239, 199, 0.05);
  backdrop-filter: blur(15px);
}

body.checkers-premium-running .match-header {
  position: relative;
  min-height: 48px;
  padding: 4px 132px 8px 64px;
  border-bottom: 1px solid var(--eclipse-line);
}

body.checkers-premium-running .match-header::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 54px;
  aspect-ratio: 1;
  transform: translateY(-50%);
  background: url("/assets/checkers/clockwork-eclipse/emblem.svg") center / contain no-repeat;
  filter: drop-shadow(0 5px 8px rgba(0, 0, 0, 0.54));
}

body.checkers-premium-running .match-header h2 {
  margin: 0;
  color: var(--eclipse-copy);
  font-size: clamp(1.15rem, 2vw, 1.65rem);
  line-height: 1.08;
}

body.checkers-premium-running .match-header .section-label {
  margin: 0 0 3px;
  color: var(--eclipse-gold);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
}

body.checkers-premium-running .revision {
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  border-color: var(--eclipse-line);
  background: rgba(4, 8, 14, 0.76);
  color: var(--eclipse-gold-bright);
}

body.checkers-premium-running .status {
  min-height: 0;
  margin: 0;
  padding: 8px 14px 8px 48px;
  border: 1px solid rgba(217, 170, 76, 0.28);
  border-radius: 11px;
  background:
    url("/assets/checkers/clockwork-eclipse/turn-dial.svg") 7px 50% / 34px 34px no-repeat,
    linear-gradient(90deg, rgba(217, 170, 76, 0.11), transparent 68%),
    rgba(5, 10, 17, 0.86);
  color: var(--eclipse-copy);
  font-size: clamp(0.78rem, 1.2vw, 0.96rem);
}

body.checkers-premium-running .game-layout {
  display: grid;
  grid-template-columns: minmax(168px, 220px) minmax(360px, 1fr) minmax(184px, 246px);
  gap: clamp(8px, 1vw, 16px);
  min-height: 0;
  height: 100%;
  overflow: hidden;
  align-items: stretch;
}

body.checkers-premium-running .players,
body.checkers-premium-running .checkers-intel-rail {
  min-height: 0;
  overflow: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(217, 170, 76, 0.42) rgba(4, 8, 14, 0.4);
}

body.checkers-premium-running .players {
  position: relative;
  display: grid;
  grid-auto-rows: min-content;
  align-content: start;
  gap: 8px;
  padding: 4px 10px 4px 16px;
}

body.checkers-premium-running .players::before,
body.checkers-premium-running .checkers-intel-rail::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: 8px;
  bottom: 8px;
  width: 20px;
  pointer-events: none;
  background: url("/assets/checkers/clockwork-eclipse/rail-flourish.svg") center / 100% 100% no-repeat;
  opacity: 0.58;
}

body.checkers-premium-running .players::before { left: -4px; }
body.checkers-premium-running .checkers-intel-rail::after { right: -4px; transform: scaleX(-1); }

body.checkers-premium-running .player-card,
body.checkers-premium-running .match-meta,
body.checkers-premium-running .checkers-intel-card {
  position: relative;
  z-index: 1;
}

body.checkers-premium-running .player-card {
  min-height: 72px;
  padding: 10px;
  border-color: rgba(217, 170, 76, 0.25);
  background: linear-gradient(145deg, rgba(19, 29, 45, 0.9), rgba(4, 8, 14, 0.94));
}

body.checkers-premium-running .mark-badge.black,
body.checkers-premium-running .checkers-count-dot.black,
body.checkers-premium-running .checkers-captured-token-black,
body.checkers-premium-running .piece-black {
  background-image: url("/assets/checkers/clockwork-eclipse/piece-lunar.svg");
  background-size: contain;
  background-position: center;
}

body.checkers-premium-running .mark-badge.red,
body.checkers-premium-running .checkers-count-dot.red,
body.checkers-premium-running .checkers-captured-token-red,
body.checkers-premium-running .piece-red {
  background-image: url("/assets/checkers/clockwork-eclipse/piece-solar.svg");
  background-size: contain;
  background-position: center;
}

body.checkers-premium-running .piece-black.is-king {
  background-image: url("/assets/checkers/clockwork-eclipse/piece-lunar-king.svg");
}

body.checkers-premium-running .piece-red.is-king {
  background-image: url("/assets/checkers/clockwork-eclipse/piece-solar-king.svg");
}

body.checkers-premium-running .checkers-captured-summary {
  min-height: 46px;
  padding: 13px 18px 8px;
  border: 0;
  background: url("/assets/checkers/clockwork-eclipse/captured-reservoir.svg") center / 100% 100% no-repeat;
}

body.checkers-premium-running .checkers-captured-label,
body.checkers-premium-running .checkers-captured-count {
  text-shadow: 0 2px 3px rgba(0, 0, 0, 0.92);
}

body.checkers-premium-running .board-wrap {
  box-sizing: border-box;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  place-items: center;
  width: 100%;
  max-width: none;
  height: 100%;
  min-height: 0;
  padding: 6px;
  overflow: hidden;
  border: 1px solid rgba(217, 170, 76, 0.2);
  background: rgba(2, 5, 10, 0.72);
}

body.checkers-premium-running .checkers-board-heading {
  width: 100%;
  margin: 0;
  padding: 0 6px 4px;
}

body.checkers-premium-running .checkers-board-shell {
  box-sizing: border-box;
  width: auto;
  max-width: 100%;
  height: 100%;
  max-height: 100%;
  aspect-ratio: 1;
  padding: 8.4%;
}

body.checkers-premium-running .checkers-board-shell::before {
  background-image: url("/assets/checkers/clockwork-eclipse/board-frame.svg");
  filter: drop-shadow(0 12px 18px rgba(0, 0, 0, 0.58));
}

body.checkers-premium-running .board-checkers {
  background-image: url("/assets/checkers/clockwork-eclipse/board-surface.svg");
  box-shadow: inset 0 0 0 1px rgba(2, 3, 6, 0.94), inset 0 0 20px rgba(0, 0, 0, 0.3);
}

body.checkers-premium-running .checkers-piece {
  width: 86%;
  filter: drop-shadow(0 5px 5px rgba(0, 0, 0, 0.55));
}

body.checkers-premium-running .checkers-cell.selectable-piece {
  box-shadow: inset 0 0 0 2px rgba(121, 201, 226, 0.58), inset 0 0 18px rgba(121, 201, 226, 0.12);
}

body.checkers-premium-running .checkers-cell.selected-piece::before {
  inset: 7%;
  border: 3px solid var(--eclipse-gold-bright);
  border-radius: 50%;
  background: transparent;
  box-shadow: 0 0 0 3px rgba(11, 25, 42, 0.8), 0 0 18px rgba(246, 212, 131, 0.88), inset 0 0 12px rgba(246, 212, 131, 0.5);
}

body.checkers-premium-running .checkers-cell.legal-destination::after {
  inset: 30%;
  border: 2px solid rgba(246, 212, 131, 0.86);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(246, 212, 131, 0.78) 0 28%, rgba(80, 158, 205, 0.44) 31% 58%, transparent 62%);
  box-shadow: 0 0 12px rgba(246, 212, 131, 0.58);
}

body.checkers-premium-running .board-help {
  width: 100%;
  margin: 2px 0 0;
  color: var(--eclipse-muted);
  font-size: clamp(0.66rem, 1vw, 0.78rem);
}

body.checkers-premium-running .checkers-intel-rail {
  position: relative;
  display: grid;
  grid-auto-rows: min-content;
  align-content: start;
  gap: 8px;
  padding: 4px 16px 4px 8px;
}

body.checkers-premium-running .checkers-intel-card {
  padding: 10px;
  border-color: rgba(217, 170, 76, 0.25);
  background: linear-gradient(145deg, rgba(18, 29, 46, 0.9), rgba(4, 8, 14, 0.94));
}

body.checkers-premium-running .invite-panel {
  position: absolute;
  z-index: 30;
  inset: auto 18px 64px 18px;
  max-height: 40dvh;
  overflow: auto;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.7);
}

body.checkers-premium-running .actions {
  position: absolute;
  right: clamp(12px, 1.5vw, 22px);
  bottom: clamp(10px, 1.2vw, 16px);
  z-index: 12;
  margin: 0;
}

body.checkers-premium-running .actions .secondary-button {
  min-height: 34px;
  padding: 6px 12px;
  font-size: 0.72rem;
}

body.checkers-premium-running .diagnostics {
  position: absolute;
  left: clamp(12px, 1.5vw, 22px);
  bottom: clamp(10px, 1.2vw, 16px);
  z-index: 12;
  max-width: min(560px, 60vw);
  margin: 0;
  background: rgba(3, 7, 12, 0.9);
}

body.checkers-premium-running .checkers-outcome-overlay {
  inset: 6px;
  background: rgba(2, 5, 10, 0.82);
}

body.checkers-premium-running .checkers-outcome-card {
  border-color: rgba(217, 170, 76, 0.58);
  background:
    url("/assets/checkers/clockwork-eclipse/emblem.svg") center 18px / 78px 78px no-repeat,
    radial-gradient(circle at 50% 0%, rgba(217, 170, 76, 0.18), transparent 65%),
    rgba(5, 10, 18, 0.97);
  padding-top: 102px;
}

@media (max-height: 800px) and (min-width: 761px) {
  body.checkers-premium-running .checkers-premium-match.panel { gap: 5px; padding: 8px; }
  body.checkers-premium-running .match-header { min-height: 40px; padding-top: 2px; padding-bottom: 5px; }
  body.checkers-premium-running .match-header::before { width: 44px; }
  body.checkers-premium-running .status { padding-top: 6px; padding-bottom: 6px; }
  body.checkers-premium-running .player-card { min-height: 62px; padding: 8px; }
  body.checkers-premium-running .match-meta { font-size: 0.68rem; }
  body.checkers-premium-running .checkers-intel-card { padding: 8px; }
}

@media (max-width: 900px) {
  body.checkers-premium-running .game-layout {
    grid-template-columns: minmax(145px, 190px) minmax(340px, 1fr);
  }
  body.checkers-premium-running .checkers-intel-rail { display: none; }
}

@media (max-width: 760px) {
  body.checkers-premium-running .shell { padding: 5px; }
  body.checkers-premium-running .checkers-premium-match.panel {
    grid-template-rows: auto auto minmax(0, 1fr);
    gap: 5px;
    padding: 6px;
    border-radius: 12px;
  }
  body.checkers-premium-running .match-header {
    min-height: 40px;
    padding: 3px 72px 5px 44px;
  }
  body.checkers-premium-running .match-header::before { width: 38px; }
  body.checkers-premium-running .match-header .section-label { display: none; }
  body.checkers-premium-running .match-header h2 { font-size: 1rem; }
  body.checkers-premium-running .revision { font-size: 0.62rem; }
  body.checkers-premium-running .status {
    padding: 6px 9px 6px 37px;
    background-size: 28px 28px, auto, auto;
    background-position: 5px 50%, 0 0, 0 0;
    font-size: 0.74rem;
  }
  body.checkers-premium-running .game-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(0, 1fr);
    gap: 5px;
  }
  body.checkers-premium-running .players {
    grid-template-columns: 1fr 1fr;
    gap: 5px;
    padding: 0;
    overflow: visible;
  }
  body.checkers-premium-running .players::before,
  body.checkers-premium-running .match-meta,
  body.checkers-premium-running .checkers-captured-summary { display: none; }
  body.checkers-premium-running .player-card {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 7px;
    min-height: 48px;
    padding: 6px;
    border-radius: 8px;
  }
  body.checkers-premium-running .mark-badge.black,
  body.checkers-premium-running .mark-badge.red { width: 30px; height: 30px; }
  body.checkers-premium-running .player-card small { font-size: 0.58rem; }
  body.checkers-premium-running .player-card strong { font-size: 0.76rem; }
  body.checkers-premium-running .board-wrap { padding: 3px; border-radius: 9px; }
  body.checkers-premium-running .checkers-board-heading { display: none; }
  body.checkers-premium-running .checkers-board-shell {
    width: min(100%, calc(100dvh - 190px));
    height: auto;
    max-height: 100%;
  }
  body.checkers-premium-running .board-help { font-size: 0.63rem; }
  body.checkers-premium-running .actions {
    right: 8px;
    bottom: 8px;
  }
  body.checkers-premium-running .actions .secondary-button {
    max-width: 46vw;
    min-height: 30px;
    padding: 4px 8px;
    font-size: 0.62rem;
  }
  body.checkers-premium-running .diagnostics {
    left: 8px;
    bottom: 8px;
    max-width: 42vw;
    font-size: 0.62rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.checkers-premium-running *,
  body.checkers-premium-running *::before,
  body.checkers-premium-running *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* Active-match viewport containment and generic player-card leak corrections. */
html:has(body.checkers-premium-running) {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body.checkers-premium-running {
  width: 100%;
  height: 100dvh;
  min-height: 0;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

body.checkers-premium-running .checkers-captured-summary {
  display: grid !important;
  grid-template-columns: auto minmax(0, 1fr) auto !important;
  align-items: center !important;
  gap: 4px !important;
  min-width: 0;
}

body.checkers-premium-running .checkers-captured-label {
  position: static !important;
  min-width: 0;
  font-size: 0.52rem !important;
  letter-spacing: 0.08em !important;
  white-space: nowrap;
}

body.checkers-premium-running .checkers-captured-pieces {
  min-width: 0;
  overflow: hidden;
}

body.checkers-premium-running .checkers-captured-count {
  position: static !important;
  min-width: 1ch;
  text-align: right;
  white-space: nowrap;
}

body.checkers-premium-running .checkers-captured-count::before,
body.checkers-premium-running .checkers-captured-count::after {
  display: none !important;
  content: none !important;
}

body.checkers-premium-running .shell {
  position: fixed;
  inset: 0;
  width: auto;
  max-width: none;
  height: auto;
}