/* ============================================================
   CSS VARIABLES — dark wood / luxury theme
   ============================================================ */
:root {
  --bg-primary: #0b0a0d;
  --bg-card: #13121a;
  --bg-card-hover: #1c1b25;
  --border: #2a2838;
  --text-primary: #ece8e0;
  --text-secondary: #908a9a;
  --text-muted: #5a5568;
  --accent: #d4a24e;
  --accent-glow: #d4a24e30;
  --accent-hover: #e6b965;
  --danger: #d94f4f;
  --success: #5cb87a;
  --info: #5b8fd9;
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --radius: 10px;
  --shadow: 0 8px 32px rgba(0,0,0,.5);
}

/* ============================================================
   RESET & GLOBAL
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
}

/* Grain overlay */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.03'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 0;
}

/* ============================================================
   HEADER
   ============================================================ */
header {
  position: relative; z-index: 1;
  text-align: center;
  padding: 2rem 1rem .8rem;
}

header h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  background: linear-gradient(135deg, var(--accent) 0%, #f5dfa0 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

header p {
  color: var(--text-muted);
  font-size: .82rem;
  margin-top: .25rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}

/* ============================================================
   MAIN
   ============================================================ */
.arena {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: center;
  gap: 1rem;
  padding: 0 .75rem 2rem;
  width: 100%;
  max-width: 780px;
}

/* ============================================================
   STATUS BAR
   ============================================================ */
.status-bar {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .75rem 1.1rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: .6rem;
  box-shadow: var(--shadow);
  transition: border-color .3s;
}
.status-bar.game-over { border-color: var(--accent); box-shadow: 0 0 20px var(--accent-glow); }

.status-icon {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--success); flex-shrink: 0;
  animation: pulse 2s infinite;
}
.status-bar.game-over .status-icon { background: var(--danger); animation: none; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }

#statusText { flex: 1; font-size: .9rem; font-weight: 500; }

.turn-badge {
  font-size: .72rem; text-transform: uppercase; letter-spacing: .1em;
  padding: .25rem .65rem; border-radius: 6px;
  background: var(--bg-card-hover); color: var(--text-secondary);
  border: 1px solid var(--border); white-space: nowrap;
}

/* ============================================================
   CANVAS BOARD
   ============================================================ */
#boardCanvas {
  width: 100%;
  max-width: 720px;
  border-radius: var(--radius);
  box-shadow: var(--shadow), 0 0 60px rgba(212,162,78,.07);
  border: 2px solid var(--border);
  cursor: pointer;
  touch-action: manipulation;
}
#boardCanvas.grabbable { cursor: grab; }
#boardCanvas.grabbing { cursor: grabbing; }

/* ============================================================
   DICE DISPLAY — 3D pip dice
   ============================================================ */
.dice-row {
  display: flex; align-items: center; gap: 1.1rem;
  flex-wrap: wrap; justify-content: center;
  min-height: 90px;
  padding: .4rem 0;
}

/* Roll button when it lives inside the dice row */
.btn-roll-inline {
  font-size: 1rem;
  font-weight: 700;
  padding: .85rem 2.2rem;
  border-radius: 12px;
  letter-spacing: .03em;
  gap: .5rem;
  box-shadow: 0 4px 18px var(--accent-glow);
}

.die {
  width: 72px; height: 72px;
  position: relative;
  border-radius: 14px;
  /* Ivory gradient — lit from top-left */
  background: linear-gradient(145deg, #fdfaf3 0%, #ede0c8 55%, #ddd0b5 100%);
  /* Thick bottom shadow = 3D depth; large blur = ambient shadow */
  box-shadow:
    0 8px 0 0 #7a6040,
    0 12px 30px rgba(0,0,0,.62),
    inset 0 1px 4px rgba(255,255,255,.95),
    inset -1px -1px 3px rgba(0,0,0,.07);
  /* 3×3 grid for pip positions */
  display: grid;
  grid-template-areas:
    "tl tc tr"
    "ml c  mr"
    "bl bc br";
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr;
  padding: 10px;
  transition: transform .3s cubic-bezier(.34,1.56,.64,1), opacity .25s, box-shadow .25s;
  user-select: none;
}

.die.used {
  opacity: .26;
  transform: scale(.82) translateY(5px);
  box-shadow:
    0 2px 0 #7a6040,
    0 3px 10px rgba(0,0,0,.3),
    inset 0 1px 4px rgba(255,255,255,.95);
}

.die.rolling {
  animation: dieRoll3d .6s cubic-bezier(.4,0,.2,1) forwards;
}

@keyframes dieRoll3d {
  0%   { transform: scale(.6)  rotateX(0deg)   rotateZ(0deg);   opacity:.3; box-shadow: 0 1px 0 #7a6040; }
  30%  { transform: scale(1.1) rotateX(120deg) rotateZ(55deg);  opacity:1; }
  60%  { transform: scale(.95) rotateX(250deg) rotateZ(100deg); }
  85%  { transform: scale(1.04) rotateX(345deg) rotateZ(7deg);  }
  100% { transform: scale(1)   rotateX(360deg) rotateZ(0deg);   opacity:1;
         box-shadow: 0 8px 0 #7a6040, 0 12px 30px rgba(0,0,0,.62),
                     inset 0 1px 4px rgba(255,255,255,.95); }
}

/* Pip dots */
.pip {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 28%, #6b4a28, #1c0e06);
  box-shadow: inset 0 1px 2px rgba(0,0,0,.55), 0 1px 0 rgba(255,255,255,.1);
  align-self: center;
  justify-self: center;
}
.pip.tl { grid-area: tl; }
.pip.tc { grid-area: tc; }
.pip.tr { grid-area: tr; }
.pip.ml { grid-area: ml; }
.pip.c  { grid-area: c;  }
.pip.mr { grid-area: mr; }
.pip.bl { grid-area: bl; }
.pip.bc { grid-area: bc; }
.pip.br { grid-area: br; }

/* ============================================================
   CONTROLS
   ============================================================ */
.controls {
  display: flex; flex-wrap: wrap; gap: .5rem;
  width: 100%; justify-content: center;
}

.btn {
  font-family: var(--font-body);
  font-size: .82rem; font-weight: 600;
  padding: .6rem 1.1rem;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg-card); color: var(--text-primary);
  cursor: pointer; transition: all .2s;
  display: flex; align-items: center; gap: .35rem;
}
.btn:hover {
  background: var(--bg-card-hover); border-color: var(--accent);
  color: var(--accent-hover); transform: translateY(-1px);
}
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: .35; pointer-events: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #e6b965);
  color: #0a0a0c; border-color: var(--accent);
}
.btn-primary:hover { color: #0a0a0c; box-shadow: 0 4px 16px var(--accent-glow); }

.btn-danger { border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: rgba(217,79,79,.1); color: #f06060; }

/* ============================================================
   TOOLBAR
   ============================================================ */
.toolbar {
  display: flex; flex-wrap: wrap; gap: .4rem;
  justify-content: center;
}

.toolbar-btn {
  font-family: var(--font-body);
  font-size: .75rem; font-weight: 500;
  padding: .45rem .8rem;
  border: 1px solid var(--border); border-radius: 7px;
  background: var(--bg-card); color: var(--text-secondary);
  cursor: pointer; transition: all .2s;
  display: flex; align-items: center; gap: .3rem;
}
.toolbar-btn:hover {
  border-color: var(--accent); color: var(--accent-hover);
  background: var(--bg-card-hover);
}
.toolbar-btn.active {
  border-color: var(--accent); color: var(--accent);
  background: rgba(212,162,78,.08);
}

/* ============================================================
   SCORE PANEL
   ============================================================ */
.score-panel {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .7rem 1rem;
  display: flex; justify-content: space-around;
  box-shadow: var(--shadow);
}
.score-item {
  text-align: center;
}
.score-label {
  font-size: .65rem; text-transform: uppercase;
  letter-spacing: .12em; color: var(--text-muted);
  margin-bottom: .15rem;
}
.score-value {
  font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 700; color: var(--accent);
}

/* ============================================================
   MOVE HISTORY
   ============================================================ */
.history-panel {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.history-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: .6rem 1rem;
  border-bottom: 1px solid var(--border);
}

.history-header span {
  font-size: .75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .1em;
  color: var(--text-secondary);
}

.history-moves {
  padding: .6rem .8rem;
  max-height: 140px;
  overflow-y: auto;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.history-moves::-webkit-scrollbar { width: 4px; }
.history-moves::-webkit-scrollbar-track { background: transparent; }
.history-moves::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.move-number {
  color: var(--text-muted);
  font-weight: 600;
  margin-right: .25rem;
}

.move-entry {
  display: inline;
  padding: .1rem .3rem;
  border-radius: 3px;
  cursor: pointer;
  transition: background .15s;
}
.move-entry:hover { background: var(--bg-card-hover); }
.move-entry.active { background: var(--accent); color: #0a0a0c; font-weight: 600; }

.history-nav {
  display: flex; gap: 0;
  border-top: 1px solid var(--border);
}

.nav-btn {
  flex: 1; padding: .5rem;
  background: none; border: none; border-right: 1px solid var(--border);
  color: var(--text-secondary); cursor: pointer;
  font-size: .85rem; transition: all .15s;
}
.nav-btn:last-child { border-right: none; }
.nav-btn:hover { background: var(--bg-card-hover); color: var(--accent); }
.nav-btn:disabled { opacity: .3; cursor: default; }
.nav-btn:disabled:hover { background: none; color: var(--text-secondary); }

/* ============================================================
   GAME ARCHIVE
   ============================================================ */
.archive-panel {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.archive-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: .6rem 1rem;
  border-bottom: 1px solid var(--border);
}

.archive-header span {
  font-size: .75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .1em;
  color: var(--text-secondary);
}

.archive-list {
  max-height: 160px;
  overflow-y: auto;
}

.archive-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: .55rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: .78rem;
  cursor: pointer;
  transition: background .15s;
}
.archive-item:last-child { border-bottom: none; }
.archive-item:hover { background: var(--bg-card-hover); }

.archive-result {
  font-weight: 600; font-size: .7rem;
  padding: .15rem .5rem; border-radius: 4px;
}
.archive-result.win { background: rgba(92,184,122,.15); color: var(--success); }
.archive-result.loss { background: rgba(217,79,79,.15); color: var(--danger); }

.archive-empty {
  padding: 1rem;
  text-align: center;
  color: var(--text-muted);
  font-size: .8rem;
}

/* ============================================================
   STATISTICS PANEL
   ============================================================ */
.stats-panel {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.stats-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: .6rem 1rem;
  border-bottom: 1px solid var(--border);
}

.stats-header span {
  font-size: .75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .1em;
  color: var(--text-secondary);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stat-item {
  text-align: center;
  padding: .6rem .4rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stat-item:nth-child(4n) { border-right: none; }
.stat-item:nth-last-child(-n+4) { border-bottom: none; }

.stat-label {
  font-size: .6rem; text-transform: uppercase;
  letter-spacing: .1em; color: var(--text-muted);
  margin-bottom: .15rem;
}
.stat-value {
  font-family: var(--font-display);
  font-size: 1.1rem; font-weight: 700; color: var(--accent);
}

/* ============================================================
   OVERLAY / DIALOG
   ============================================================ */
.overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.78);
  backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  z-index: 100; transition: opacity .3s;
}
.overlay.hidden { display: none; opacity: 0; }
.overlay.visible { opacity: 1; }

.dialog {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.2rem 1.8rem;
  text-align: center;
  box-shadow: var(--shadow);
  max-width: 380px; width: 90%;
}
.dialog h2 {
  font-family: var(--font-display);
  font-weight: 700; font-size: 1.35rem;
  margin-bottom: .4rem;
}
.dialog p { color: var(--text-secondary); font-size: .85rem; margin-bottom: 1.2rem; }

.color-options { display: flex; gap: .8rem; justify-content: center; margin-bottom: 1.2rem; }
.color-btn {
  width: 75px; height: 75px; border-radius: 12px;
  border: 2px solid var(--border); cursor: pointer;
  transition: all .25s;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: .25rem;
  font-size: .7rem; font-weight: 600; color: var(--text-secondary);
  background: var(--bg-card-hover);
}
.color-btn:hover {
  border-color: var(--accent); transform: scale(1.08);
  box-shadow: 0 0 18px var(--accent-glow);
}
.color-btn .swatch {
  width: 30px; height: 30px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.15);
}

/* Difficulty selector */
.difficulty-row {
  display: flex; gap: .4rem; justify-content: center;
  margin-bottom: 1rem;
}

.diff-btn {
  font-family: var(--font-body);
  font-size: .72rem; font-weight: 600;
  padding: .4rem .7rem;
  border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg-card); color: var(--text-secondary);
  cursor: pointer; transition: all .2s;
}
.diff-btn:hover { border-color: var(--accent); color: var(--accent-hover); }
.diff-btn.active {
  background: var(--accent); color: #0a0a0c;
  border-color: var(--accent);
}

/* Match length selector */
.match-row {
  display: flex; gap: .4rem; justify-content: center;
  flex-wrap: wrap;
  margin-bottom: .5rem;
}

.match-row label {
  font-size: .68rem; text-transform: uppercase;
  letter-spacing: .1em; color: var(--text-muted);
  width: 100%; text-align: center;
  margin-bottom: .2rem;
}

.match-btn {
  font-family: var(--font-body);
  font-size: .7rem; font-weight: 600;
  padding: .35rem .6rem;
  border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg-card); color: var(--text-secondary);
  cursor: pointer; transition: all .2s;
}
.match-btn:hover { border-color: var(--accent); color: var(--accent-hover); }
.match-btn.active {
  background: var(--accent); color: #0a0a0c;
  border-color: var(--accent);
}

/* Result overlay */
.result-icon {
  font-size: 3rem;
  margin-bottom: .5rem;
}

.result-detail {
  font-size: .8rem;
  color: var(--text-secondary);
  margin-bottom: .3rem;
}

.dialog-buttons {
  display: flex; gap: .5rem; justify-content: center;
  margin-top: 1rem;
}

/* Confirm dialog */
.confirm-text {
  color: var(--text-secondary);
  font-size: .85rem;
  margin-bottom: 1rem;
}

/* Doubling cube dialog */
.cube-value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  margin: .5rem 0;
}

/* ============================================================
   THINKING INDICATOR
   ============================================================ */
.thinking { display: none; align-items: center; gap: .45rem; color: var(--text-secondary); font-size: .82rem; }
.thinking.active { display: flex; }
.thinking-dots span {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent); display: inline-block;
  animation: dotB .6s infinite alternate;
}
.thinking-dots span:nth-child(2) { animation-delay: .15s; }
.thinking-dots span:nth-child(3) { animation-delay: .3s; }
@keyframes dotB { to { opacity:.2; transform:translateY(-3px); } }

/* ============================================================
   MATCH SCORE DISPLAY
   ============================================================ */
.match-score-bar {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .5rem 1rem;
  display: none; /* shown when match mode active */
  align-items: center; justify-content: center;
  gap: 1rem;
  box-shadow: var(--shadow);
  font-size: .8rem;
}
.match-score-bar.active { display: flex; }

.match-score-bar .match-player {
  font-weight: 600;
  color: var(--text-primary);
}

.match-score-bar .match-vs {
  color: var(--text-muted);
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .1em;
}

.match-score-bar .match-pts {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
}

/* ============================================================
   KEYBOARD SHORTCUTS HINT
   ============================================================ */
.shortcuts-hint {
  display: flex; flex-wrap: wrap; gap: .5rem;
  justify-content: center;
  padding: .3rem 0;
}

.shortcuts-hint span {
  font-size: .65rem;
  color: var(--text-muted);
  letter-spacing: .03em;
}

.shortcuts-hint kbd {
  display: inline-block;
  padding: .1rem .35rem;
  font-family: var(--font-body);
  font-size: .6rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 3px;
  margin-right: .15rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  position: relative; z-index: 1;
  padding: .8rem; color: var(--text-muted); font-size: .7rem; text-align: center;
}

/* ============================================================
   LIGHT THEME
   ============================================================ */
body.light-theme {
  --bg-primary: #f0ece4;
  --bg-card: #ffffff;
  --bg-card-hover: #f5f3ef;
  --border: #d4d0c8;
  --text-primary: #1a1a1a;
  --text-secondary: #5a5a6a;
  --text-muted: #9a9a9a;
  --accent: #b8892e;
  --accent-glow: #b8892e25;
  --accent-hover: #d4a24e;
  --shadow: 0 4px 20px rgba(0,0,0,.1);
}

body.light-theme::before { opacity: .015; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 520px) {
  .btn { font-size: .75rem; padding: .5rem .8rem; }
  .die { width: 54px; height: 54px; border-radius: 10px; padding: 8px; }
  .pip { width: 10px; height: 10px; }
  .dialog { padding: 1.6rem 1.2rem; }
  .toolbar-btn { font-size: .7rem; padding: .35rem .6rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .dice-row { min-height: 68px; gap: .8rem; }
}

@media (max-width: 380px) {
  header h1 { font-size: 1.5rem; }
  header p { font-size: .7rem; }
  .btn { font-size: .7rem; padding: .4rem .65rem; }
  .die { width: 44px; height: 44px; border-radius: 8px; padding: 6px; }
  .pip { width: 8px; height: 8px; }
  .score-value { font-size: 1.1rem; }
  .score-label { font-size: .58rem; }
  .dice-row { min-height: 56px; gap: .6rem; }
}

@media (min-width: 900px) {
  .arena {
    max-width: 900px;
    display: grid;
    grid-template-columns: 1fr 280px;
    grid-template-rows: auto auto auto auto auto auto;
    gap: 1rem;
    align-items: start;
  }
  .status-bar    { grid-column: 1 / -1; }
  #boardCanvas   { grid-column: 1; grid-row: 2 / 5; }
  .dice-row      { grid-column: 1; }
  .thinking      { grid-column: 1; }
  .controls      { grid-column: 1; }
  .toolbar       { grid-column: 1; }
  .score-panel   { grid-column: 1; }
  .match-score-bar { grid-column: 1 / -1; }
  .history-panel { grid-column: 2; grid-row: 2 / 4; }
  .archive-panel { grid-column: 2; grid-row: 4; }
  .stats-panel   { grid-column: 2; grid-row: 5; }
  .shortcuts-hint { grid-column: 1 / -1; }
}

@media (max-height: 500px) and (orientation: landscape) {
  header { padding: .8rem 1rem .4rem; }
  header h1 { font-size: 1.4rem; }
  header p { display: none; }
  .arena { gap: .5rem; padding-bottom: .5rem; }
  .die { width: 48px; height: 48px; padding: 7px; }
  .pip { width: 9px; height: 9px; }
  .dice-row { min-height: 60px; }
}

/* ============================================================
   ARENA NAV — back link to Board Game Arena landing page
   ============================================================ */
.arena-nav {
  text-align: center;
  padding: .5rem 0 0;
}

.arena-nav-link {
  font-family: 'Cinzel', 'Cormorant Garamond', Georgia, serif;
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: #d4a24e;
  text-decoration: none;
  opacity: .6;
  transition: opacity .2s;
}

.arena-nav-link:hover { opacity: 1; }