:root {
  --bg: #dcd7cf;
  --ink: #6e6a63;
  --accent: #8b7355;
  --light: #e8e3dc;
  --white: #fdfbf7;
  --shadow-soft: 0 18px 40px rgba(0, 0, 0, 0.08);
  --shadow-card: 0 12px 28px rgba(0, 0, 0, 0.14);
}

body.admin-short-page {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  line-height: 1.6;
  overflow: hidden;
  height: var(--app-height, 100dvh);
  min-height: var(--app-height, 100dvh);
}

@supports not (height: 100dvh) {
  body.admin-short-page {
    height: var(--app-height, 100vh);
    min-height: var(--app-height, 100vh);
  }
}

body.admin-short-page img {
  display: block;
  max-width: 100%;
  height: auto;
}

.admin-short-main {
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  scroll-behavior: smooth;
  position: relative;
  z-index: 0;
}

.hero-section {
  height: 100vh;
  min-height: 100vh;
  flex-shrink: 0;
}

.admin-short-overview-section {
  position: relative;
  min-height: 280vh;
  background: var(--light);
  scroll-margin-top: clamp(4rem, 12vh, 8rem);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  /* padding: clamp(2.4rem, 6vw, 4rem) clamp(1.6rem, 6vw, 4rem); */
}

.admin-short-initial-section {
  position: relative;
  min-height: 420vh;
  background: var(--light);
  scroll-margin-top: clamp(4rem, 12vh, 8rem);
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.admin-short-stage {
  width: min(1200px, 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100%;
}

.admin-short-initial-stage {
  flex-direction: column;
  justify-content: center;
  gap: clamp(1.5rem, 4vh, 3rem);
}

.admin-short-overview {
  width: min(1100px, 100%);
  display: flex;
  justify-content: center;
  padding: clamp(0.5rem, 3vw, 1.2rem);
  margin-top: clamp(-4.6rem, -8vh, -2rem);
  transform: translateY(8px);
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.admin-short-overview.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.admin-short-overview--initial {
  margin-top: clamp(-20rem, -20vh, -20rem);
}

.admin-short-board {
  --admin-board-gap: clamp(0.35rem, 1.2vw, 0.3rem);
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: var(--admin-board-gap);
  padding: 0;
  transform: translateX(var(--board-shift, 0px));
}

.admin-short-board .board-card,
.admin-short-board .board-king {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.admin-short-board .board-card {
  width: clamp(120px, 17vw, 183px);
}

.admin-short-board .board-king {
  width: clamp(82px, 11vw, 110px);
}

.admin-short-initial-board .board-card {
  width: clamp(95px, 14.5vw, 155px);
}

.admin-short-initial-board .board-king {
  width: clamp(68px, 9.5vw, 94px);
}

.admin-short-board .board-king:first-child,
.admin-short-board .board-king:last-child {
  margin: 0 clamp(0.2rem, 0.8vw, 0.6rem);
}

.admin-short-board .board-card img,
.admin-short-board .board-king img {
  width: 100%;
  height: auto;
  display: block;
}

.admin-short-board .board-card img {
  transform: none;
}

.admin-short-board .admin-point-label {
  position: absolute;
  top: 95pt;
  left: 50%;
  transform: translate(-50%, 14px);
  font-size: clamp(1.25rem, 3.4vw, 2.1rem);
  font-weight: 600;
  font-family: 'Sofia Sans Condensed', 'Kaisei HarunoUmi', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--accent);
  letter-spacing: 0.04em;
  text-transform: none;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  white-space: nowrap;
}

.admin-short-board .admin-point-label[data-point="1"] {
  color: #f0ac37;
}

.admin-short-board .admin-point-label[data-point="3"] {
  color: #4788ad;
}

.admin-short-board .admin-point-label[data-point="5"] {
  color: #bb4847;
}

.admin-short-board .admin-point-label[data-point="piece-1"].is-yellow {
  color: #f0ac37; /* 黄コマ用 */
}

.admin-short-board .admin-point-label[data-point="piece-1"].is-blue {
  color: #4788ad; /* 青コマ用 */
}

.admin-short-board .admin-point-label[data-point="piece-2"].is-red {
  color: #bb4847; /* 赤コマ用 */
}

.admin-short-board .admin-point-label[data-point="piece-2"].is-green {
  color: #789c49; /* 緑コマ用 */
}

.admin-short-board .admin-point-label.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.admin-short-board .board-king img {
  width: 70%;
}

.admin-short-board .city-card-container {
  overflow: visible;
  position: relative;
  z-index: 120;
}

.admin-short-board .pieces-container {
  position: absolute;
  top: 50%;
  left: 50%;
  /* transform: translate(-50%, -50%); は setup.css で指定済み */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(0.3rem, 1vw, 0.4rem);
  pointer-events: none;
  z-index: 150;
}

.admin-short-board .pieces-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(0.4rem, 1.2vw, 0.5rem);
}

.admin-short-board .piece {
  width: clamp(38px, 5.2vw, 52px);
  height: clamp(38px, 5.2vw, 52px);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative !important;
  z-index: 151;
  pointer-events: none;
  border-radius: 50%;
  background: transparent;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.28);
}

.admin-short-initial-board .piece {
  width: clamp(30px, 4.2vw, 44px);
  height: clamp(30px, 4.2vw, 44px);
}

.admin-hand-tray {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  padding-bottom: clamp(0.6rem, 2vh, 1.8rem);
  pointer-events: none;
  z-index: 120;
}

.admin-short-hand {
  width: min(1100px, 98vw);
  margin: 0 auto;
  padding: 0 clamp(0.8rem, 4vw, 2.8rem);
  display: flex;
  justify-content: space-between;
  gap: clamp(1.5rem, 5vw, 3.6rem);
  transform: translateY(30%);
}

.admin-hand-card {
  width: clamp(120px, 18vw, 200px);
  aspect-ratio: 64 / 89;
  border-radius: clamp(0.65rem, 2vw, 1rem);
  box-shadow: 0 25px 45px rgba(0, 0, 0, 0.35);
  background: #fdfbf7;
  overflow: hidden;
  transform-origin: center bottom;
  filter: brightness(1);
  will-change: transform, filter;
}

.admin-hand-card img {
  width: 100%;
  height: 100%;
  display: block;
  transform: rotate(180deg);
  transform-origin: center;
}

.supports-admin-anim .admin-short-hand [data-hand-card] {
  opacity: 0;
  transform: translateY(40px) scale(0.9);
}

.supports-admin-anim .admin-short-hand.is-visible [data-hand-card] {
  opacity: 1;
  transform: none;
}

.admin-short-board .piece img {
  width: 100%;
  height: auto;
  display: block;
  position: relative;
  z-index: 152;
}

.admin-card-distribution-section {
  position: relative;
  min-height: 480vh;
  background: var(--light);
  scroll-margin-top: clamp(4rem, 12vh, 8rem);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: clamp(1rem, 5vh, 2.4rem);
}

.admin-card-distribution-stage {
  width: 100%;
}

.admin-card-distribution {
  width: min(1200px, 92vw);
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(1.8rem, 4vw, 3rem);
  padding: clamp(2rem, 5vh, 3.4rem) clamp(1.2rem, 4vw, 2.8rem);
  position: relative;
}

.admin-card-distribution__hand,
.admin-card-distribution__backs {
  display: flex;
  gap: clamp(0.8rem, 1.8vw, 1.6rem);
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}

.admin-card-slot {
  width: clamp(90px, 10vw, 130px);
  aspect-ratio: 64 / 89;
  display: flex;
  align-items: center;
  justify-content: center;
}

.admin-card-slot img {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: clamp(0.5rem, 1.2vw, 0.8rem);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
  transform-origin: center;
  opacity: 0;
  transform: scale(0) rotate(180deg);
}

.admin-card-slot--back img {
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.25);
}

@media (max-width: 768px) {
  .admin-card-distribution__hand,
  .admin-card-distribution__backs {
    gap: 0.6rem;
  }

  .admin-card-slot {
    width: clamp(72px, 24vw, 110px);
  }
}

.admin-short-board .admin-short-board-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 200;
  overflow: visible;
}

.admin-short-board .admin-green-highlight {
  stroke: #3d3938;
  stroke-width: 6px;
  fill: none;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.admin-short-board .admin-arrow-path {
  stroke: #3d3938;
  stroke-width: 6px;
  fill: none;
  stroke-linecap: round;
  opacity: 0;
  will-change: stroke-dashoffset, opacity;
}

.admin-short-board .admin-arrow-head {
  stroke: #3d3938;
  stroke-width: 6px;
  fill: none;
  stroke-linecap: round;
  opacity: 0;
  will-change: opacity, transform;
}

.admin-short-board .admin-middle-outline {
  stroke: #3d3938;
  stroke-width: 5px;
  fill: none;
  stroke-linejoin: round;
  opacity: 0;
  pointer-events: none;
}

.admin-short-board .admin-arrow-head path {
  fill: none;
  stroke: inherit;
  stroke-width: inherit;
  stroke-linecap: inherit;
}

.admin-short-inserted-card {
  position: absolute !important;
  top: 0;
  left: 0;
  z-index: 4;
  transform-origin: bottom center;
  pointer-events: none;
  opacity: 0;
  display: none;
}

.admin-short-initial-board {
  width: min(1100px, 100%);
  transform: none;
  gap: var(--admin-board-gap);
}

.admin-short-initial-board .admin-short-inserted-card {
  display: flex;
  opacity: 0;
}

.supports-admin-anim .admin-short-initial-board {
  opacity: 0;
  transform: translateY(28px) scale(0.96);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.supports-admin-anim .admin-short-initial-board.is-visible {
  opacity: 1;
  transform: none;
}

.supports-admin-anim .admin-short-initial-board.is-visible [data-board-item],
.supports-admin-anim .admin-short-initial-board.is-visible [data-piece] {
  opacity: 1;
  transform: none;
}

.supports-admin-anim .admin-short-overview [data-board-item],
.supports-admin-anim .admin-short-overview [data-piece],
.supports-admin-anim .admin-short-initial-board [data-board-item],
.supports-admin-anim .admin-short-initial-board [data-piece] {
  opacity: 0;
  transform: translateY(35px);
}

.supports-admin-anim .admin-short-overview [data-inserted-card],
.supports-admin-anim .admin-short-initial-board [data-inserted-card] {
  transform: translateY(-60px) rotate(-6deg);
  opacity: 0;
}

.scroll-indicator.is-hidden {
  opacity: 0;
  transform: translate(-50%, 20px);
  pointer-events: none;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.fixed-link-button {
  position: fixed;
  bottom: clamp(1rem, 3vh, 1.8rem);
  right: clamp(0.8rem, 3vw, 1.6rem);
  width: clamp(2.6rem, 5vw, 3rem);
  height: clamp(2.6rem, 5vw, 3rem);
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(110, 106, 99, 0.45);
  color: #f6f2ea;
  text-decoration: none;
  border: 1px solid rgba(139, 115, 85, 0.35);
  backdrop-filter: blur(8px);
  box-shadow: none;
  transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  z-index: 60;
}

.fixed-link-button:hover {
  background: rgba(139, 115, 85, 0.65);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.fixed-link-button:focus-visible {
  outline: none;
  background: rgba(139, 115, 85, 0.75);
  transform: translateY(-1px);
  box-shadow: 0 0 0 2px rgba(234, 225, 210, 0.85), 0 6px 18px rgba(0, 0, 0, 0.18);
}

@media (max-width: 768px) {
  .admin-short-initial-board {
    width: 100%;
  }

  .admin-short-board {
    gap: clamp(0.45rem, 4vw, 0.8rem);
  }

  .admin-short-board .board-card,
  .admin-short-board .board-king {
    width: clamp(70px, 25vw, 90px);
  }
}

@media (pointer: coarse) {
  .fixed-link-button {
    width: clamp(3rem, 10vw, 3.4rem);
    height: clamp(3rem, 10vw, 3.4rem);
  }
}