/* おもろい三麻 — Phase 1 MVP v0.2.0 */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  background: #0a2818;
  color: #f0f0f0;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

/* ── ロビー画面 ───────────────────────── */
.lobby {
  min-height: 100vh;
  max-width: 480px;
  margin: 0 auto;
  padding: 32px 20px;
  display: flex;
  flex-direction: column;
}
.lobby__header { text-align: center; margin-bottom: 32px; }
.lobby__title { font-size: 28px; margin: 0 0 8px; letter-spacing: 0.05em; }
.lobby__subtitle { font-size: 12px; color: #aac; margin: 0; line-height: 1.5; }
.lobby__menu { display: flex; flex-direction: column; gap: 12px; flex: 1; }
.lobby__btn {
  display: grid;
  grid-template-columns: 48px 1fr;
  grid-template-rows: auto auto;
  gap: 4px 16px;
  padding: 16px 20px;
  background: #143820;
  border: 2px solid #2d6b3f;
  border-radius: 12px;
  color: #fff;
  text-decoration: none;
  font-size: 16px;
  cursor: pointer;
  transition: transform 0.1s, background 0.1s;
}
.lobby__btn:hover, .lobby__btn:active { background: #1d5530; transform: scale(0.99); }
.lobby__btn--primary { background: #2d6b3f; border-color: #4caf50; }
.lobby__btn--primary:hover { background: #357c4b; }
.lobby__btn--disabled { opacity: 0.4; cursor: not-allowed; }
.lobby__btn--disabled:hover { transform: none; background: #143820; }
.lobby__btn-icon { grid-row: 1 / span 2; align-self: center; font-size: 32px; text-align: center; }
.lobby__btn-label { font-weight: bold; font-size: 16px; }
.lobby__btn-desc { font-size: 12px; color: #99b; }
.lobby__footer { text-align: center; margin-top: 32px; font-size: 11px; color: #688; }
.lobby__footer p { margin: 4px 0; }

/* ── ゲーム画面 ───────────────────────── */
.game-body { background: #0a2818; overflow: hidden; }
.game {
  position: fixed;
  inset: 0;
  display: grid;
  grid-template-rows: 36px 28px 1fr 56px;
}

.game__hint {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(76, 175, 80, 0.15);
  color: #4caf50;
  font-size: 12px;
  padding: 4px 12px;
  border-bottom: 1px solid rgba(76, 175, 80, 0.3);
  text-align: center;
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
}
.game__hint--cpu {
  background: rgba(255, 152, 0, 0.15);
  color: #ff9800;
}
.game__hint--idle {
  background: rgba(170, 170, 200, 0.1);
  color: #aac;
}

.game__header {
  display: flex;
  align-items: center;
  padding: 0 8px;
  background: rgba(0,0,0,0.3);
  font-size: 12px;
  gap: 8px;
}
.game__back {
  color: #fff;
  text-decoration: none;
  font-size: 18px;
  padding: 0 8px;
}
.game__round { font-weight: bold; }
.game__turn { color: #4caf50; font-weight: bold; }
.game__remain { margin-left: auto; color: #aac; }
.game__guide-btn {
  background: none;
  border: 1px solid #4a6;
  color: #4a6;
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}

/* 円卓 (table) — 各家の山が 中央を囲む 雀卓風 */
.table {
  position: relative;
  background: radial-gradient(ellipse at center, #1a5530 0%, #0d3b1f 70%, #0a2818 100%);
  display: grid;
  grid-template-areas:
    ".    top    ."
    "left center right"
    ".    bottom .";
  grid-template-rows: auto auto auto;
  grid-template-columns: auto auto auto;
  align-items: center;
  justify-items: center;
  align-content: center;
  justify-content: center;
  padding: 4px;
  gap: 2px;
}

.seat { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 2px; }
.seat--top    { grid-area: top;    align-self: end; }
.seat--right  { grid-area: right;  flex-direction: column; justify-self: start; }
.seat--bottom { grid-area: bottom; align-self: start; }
.seat--left   { grid-area: left;   flex-direction: column; }

.seat__label { font-size: 10px; color: #aac; }
.seat__hand {
  display: flex;
  flex-wrap: nowrap;
  gap: 1px;
  justify-content: center;
  overflow: hidden;
}
.seat__hand--mine { flex-wrap: wrap; }
.seat__river {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  max-width: 100%;
  padding: 2px;
  min-height: 22px;
  justify-content: center;
}

/* 山 (壁牌) — 雀卓風: 卓全体を 3面で囲む 連続体 */
.seat__wall-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  margin: 2px 0;
}
.seat--right .seat__wall-wrap { flex-direction: row; }

.seat__wall {
  display: grid;
  grid-template-rows: auto auto;
  grid-auto-flow: column;
  gap: 1px;
  padding: 3px 5px;
  background: linear-gradient(180deg, rgba(20,40,25,0.9) 0%, rgba(10,20,12,0.9) 100%);
  border-radius: 3px;
  border: 1px solid #2d6b3f;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 1px 3px rgba(0,0,0,0.5);
}
/* 下家 (画面右): 牌を縦向きで 2列 */
.seat__wall--right {
  grid-template-rows: none;
  grid-template-columns: auto auto;
  grid-auto-flow: row;
}
.wall-tile {
  width: 18px;
  height: 24px;
  background: linear-gradient(180deg, #0e6e3e 0%, #094a28 100%);
  border: 1px solid #052010;
  border-radius: 2px;
  flex-shrink: 0;
  box-shadow: 0 1px 2px rgba(0,0,0,0.5);
}
.seat__wall--right .wall-tile {
  width: 24px;
  height: 18px;
}
.wall-tile--next {
  background: linear-gradient(180deg, #ffeb3b 0%, #fbc02d 100%);
  border-color: #f57f17;
  box-shadow: 0 0 8px #ffeb3b, 0 1px 2px rgba(0,0,0,0.5);
  animation: pulse 1.2s infinite;
  position: relative;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 8px #ffeb3b, 0 1px 2px rgba(0,0,0,0.5); }
  50% { box-shadow: 0 0 18px #ffeb3b, 0 1px 2px rgba(0,0,0,0.5); }
}
.seat__wall-label {
  font-size: 10px;
  color: #ffeb3b;
  font-weight: bold;
  text-shadow: 0 0 4px rgba(0,0,0,0.8);
  pointer-events: none;
}
.seat__wall-label--top    { order: -1; }
.seat__wall-label--bottom { order: 99; }

/* 牌 */
.tile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 36px;
  background: linear-gradient(180deg, #fff 0%, #f0e8d8 100%);
  border: 1px solid #8b6f47;
  border-radius: 4px;
  font-size: 20px;
  color: #222;
  font-weight: 500;
  box-shadow: 0 1px 2px rgba(0,0,0,0.4), inset 0 -2px 0 #c9b896;
  cursor: default;
  transition: transform 0.1s;
  flex-shrink: 0;
}
.tile--mine { cursor: pointer; }
.tile--mine:hover { transform: translateY(-3px); }
.tile--mine.tile--selected { transform: translateY(-8px); border-color: #4caf50; box-shadow: 0 4px 8px rgba(76,175,80,0.6); }
.tile--mine.tile--just-drawn { border-color: #ff9800; box-shadow: 0 0 8px rgba(255,152,0,0.6); }
.tile--back {
  background: linear-gradient(180deg, #0e6e3e 0%, #0a4a2a 100%);
  color: transparent;
  border-color: #052010;
}
.tile--red { color: #d32f2f; background: linear-gradient(180deg, #ffe0e0 0%, #ffc0c0 100%); }
.tile--small { width: 20px; height: 28px; font-size: 14px; }
.tile--mini  { width: 16px; height: 22px; font-size: 12px; }
.tile--river { width: 22px; height: 30px; font-size: 16px; }

/* 中央 (王牌+ドラ) */
.center {
  grid-area: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px;
}
.center__king {
  background: rgba(0,0,0,0.3);
  padding: 6px 10px;
  border-radius: 8px;
  text-align: center;
  border: 1px dashed #888;
}
.center__king-label { font-size: 10px; color: #aac; margin-bottom: 4px; }
.center__king-tiles { display: flex; flex-wrap: wrap; gap: 1px; justify-content: center; max-width: 200px; }
.center__round-info {
  font-size: 13px;
  color: #4caf50;
  font-weight: bold;
  background: rgba(0,0,0,0.4);
  padding: 4px 12px;
  border-radius: 16px;
}
.center__round-info #center-remain { color: #ffeb3b; font-size: 16px; }

/* アクションバー */
.action-bar {
  display: flex;
  gap: 6px;
  padding: 8px 10px;
  background: rgba(0,0,0,0.5);
  align-items: center;
  justify-content: space-around;
}
.action-btn {
  flex: 1;
  padding: 10px 4px;
  border: 1px solid #4a6;
  background: #143820;
  color: #fff;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
}
.action-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.action-btn--primary { background: #d32f2f; border-color: #f44336; }
.action-btn:not(:disabled):active { transform: scale(0.95); }

/* オンボーディング */
.guide-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.guide-overlay[hidden] { display: none; }
.guide-modal {
  background: #143820;
  border: 2px solid #4caf50;
  border-radius: 12px;
  padding: 20px;
  max-width: 320px;
  width: 90%;
}
.guide-modal__title { margin: 0 0 12px; font-size: 18px; color: #4caf50; }
.guide-modal__text { font-size: 14px; line-height: 1.6; color: #ddd; }
.guide-modal__nav { display: flex; align-items: center; gap: 8px; margin-top: 16px; }
.guide-modal__step { font-size: 12px; color: #aac; }
.guide-modal__skip { background: none; border: none; color: #aac; cursor: pointer; margin-left: auto; }
.guide-modal__next {
  background: #4caf50; color: #fff; border: none;
  padding: 8px 16px; border-radius: 6px; cursor: pointer; font-weight: bold;
}

/* サイコロ セレモニー — 卓を覆わない floating パネル */
.dice-overlay {
  position: fixed;
  top: 70px;       /* header(36) + hint(28) を避けて */
  left: 50%;
  transform: translateX(-50%);
  z-index: 110;
  pointer-events: none;  /* 卓のクリックを通す、 modal自身は auto */
}
.dice-overlay[hidden] { display: none; }
.dice-modal {
  background: rgba(20, 56, 32, 0.97);
  border: 2px solid #ffeb3b;
  border-radius: 14px;
  padding: 14px 18px;
  max-width: 360px;
  width: 92vw;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.6), 0 0 20px rgba(255,235,59,0.2);
  pointer-events: auto;
  backdrop-filter: blur(4px);
}
.dice-modal__title { margin: 0 0 8px; font-size: 15px; color: #ffeb3b; }
.dice-row {
  display: flex; align-items: center; justify-content: center;
  gap: 6px; margin: 8px 0;
}
.dice {
  font-size: 36px;
  width: 48px; height: 48px;
  background: #fff;
  color: #222;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.5);
}
.dice--rolling {
  animation: dice-roll 0.15s infinite;
}
@keyframes dice-roll {
  0%   { transform: rotate(0deg)   scale(1); }
  25%  { transform: rotate(90deg)  scale(1.1); }
  50%  { transform: rotate(180deg) scale(1); }
  75%  { transform: rotate(270deg) scale(1.1); }
  100% { transform: rotate(360deg) scale(1); }
}
.dice-plus, .dice-equals { font-size: 20px; color: #ffeb3b; font-weight: bold; }
.dice-total {
  font-size: 36px;
  color: #ffeb3b;
  font-weight: bold;
  min-width: 56px;
}
.dice-explain {
  font-size: 12px; color: #ddd; line-height: 1.5;
  margin: 6px 0;
}
.dice-counter {
  background: rgba(255,235,59,0.15);
  padding: 6px 8px;
  border-radius: 8px;
  margin: 6px 0;
}
.dice-counter__label { font-size: 11px; color: #aac; margin-right: 8px; }
.dice-counter__num {
  font-size: 22px; color: #ffeb3b; font-weight: bold;
  display: inline-block;
  min-width: 36px;
}
.dice-mnemonic {
  background: rgba(255,235,59,0.08);
  border: 1px solid rgba(255,235,59,0.3);
  padding: 6px 10px;
  border-radius: 8px;
  margin: 6px 0;
  text-align: left;
  font-size: 11px;
  line-height: 1.5;
  color: #ddd;
}
.dice-mnemonic[hidden] { display: none; }
.dice-mnemonic__title {
  font-size: 12px;
  color: #ffeb3b;
  margin: 0 0 4px;
  font-weight: bold;
  text-align: center;
}
.dice-mnemonic__line { margin: 2px 0; color: #f0f0f0; font-size: 11px; }
.dice-mnemonic__line b { color: #ffeb3b; font-weight: bold; }

.dice-ok {
  background: #4caf50; color: #fff; border: none;
  padding: 8px 20px; border-radius: 8px;
  font-weight: bold; font-size: 13px; cursor: pointer;
  margin-top: 6px;
}
.dice-ok[hidden] { display: none; }

/* 山の カット位置ハイライト (王牌の境界) */
.wall-tile--cut-line {
  background: linear-gradient(180deg, #f44336 0%, #b71c1c 100%);
  border-color: #ff8a80;
  box-shadow: 0 0 8px #f44336;
}
.wall-tile--king {
  background: linear-gradient(180deg, #9c27b0 0%, #6a1b9a 100%);
  border-color: #ce93d8;
}
.wall-tile--counting {
  background: linear-gradient(180deg, #2196f3 0%, #1565c0 100%);
  border-color: #90caf9;
  animation: count-flash 0.3s;
}
@keyframes count-flash {
  0% { transform: scale(1.4); box-shadow: 0 0 15px #2196f3; }
  100% { transform: scale(1); box-shadow: 0 0 4px #2196f3; }
}

/* 河の向き (雀卓風 — 各家から見て自分側に倒れる) */
.seat--top .seat__river .tile { transform: rotate(180deg); }
.seat--right .seat__river .tile { transform: rotate(90deg); }
/* 自家はそのまま */

/* トースト */
.toast {
  position: fixed;
  top: 50px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.85);
  color: #fff;
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 14px;
  z-index: 50;
  animation: toast-in 0.2s;
}
.toast[hidden] { display: none; }
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, -10px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* 局終了モーダル */
.end-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.8);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.end-overlay[hidden] { display: none; }
.end-modal {
  background: #143820;
  border: 2px solid #ff9800;
  border-radius: 12px;
  padding: 24px;
  max-width: 360px;
  width: 90%;
  text-align: center;
}
.end-modal__title { margin: 0 0 12px; font-size: 22px; color: #ff9800; }
.end-modal__text { font-size: 14px; line-height: 1.6; color: #ddd; }
.end-modal__nav { display: flex; gap: 8px; margin-top: 16px; }
.end-modal__btn {
  flex: 1;
  background: #4caf50; color: #fff; border: none;
  padding: 12px; border-radius: 8px; cursor: pointer; font-weight: bold;
  text-decoration: none; text-align: center;
}
.end-modal__btn--secondary { background: #555; }

/* ── PC 横画面 (640px〜) ────────────── */
@media (min-width: 640px) {
  .tile { width: 30px; height: 42px; font-size: 24px; }
  .tile--small { width: 24px; height: 32px; font-size: 16px; }
  .tile--mini  { width: 18px; height: 24px; font-size: 12px; }
  .tile--river { width: 26px; height: 36px; font-size: 20px; }
  .lobby { max-width: 600px; }
  .game__header { font-size: 14px; }
  .wall-tile { width: 22px; height: 30px; }
  .seat__wall--right .wall-tile { width: 30px; height: 22px; }
}

/* ── スマホ横向き ────────────────── */
@media (max-height: 500px) and (orientation: landscape) {
  .game { grid-template-rows: 30px 24px 1fr 50px; }
  .tile { width: 22px; height: 32px; font-size: 16px; }
  .tile--small { width: 18px; height: 26px; font-size: 12px; }
  .tile--mini  { width: 14px; height: 20px; font-size: 10px; }
  .seat__river { padding: 1px; }
  .wall-tile { width: 14px; height: 20px; }
  .seat__wall--right .wall-tile { width: 20px; height: 14px; }
}