/* ═══════════════════════════════════════════════════════════════
   Dama (Checkers) — cursor-pointer.com
   Neon estetik. Tüm prefix: dm-
   ═══════════════════════════════════════════════════════════════ */

:root {
  --dm-bg-deep:  #0a0a18;
  --dm-bg-mid:   #0f0f1e;
  --dm-bg-light: #1a1a2e;
  --dm-pink:     #FF006E;
  --dm-orange:   #FF6B35;
  --dm-yellow:   #FFD23F;
  --dm-green:    #06D6A0;
  --dm-cyan:     #00B4D8;
  --dm-blue:     #3A86FF;
  --dm-purple:   #8338EC;
  --dm-red:      #FF073A;
  --dm-text:     #f8fafc;
  --dm-text-dim: rgba(248,250,252,.68);

  /* Tahta renkleri (dark squares = oynanır, light = saf değil) */
  --dm-sq-dark:  #1a1a2e;
  --dm-sq-light: #0a0a18;

  /* Taş renkleri */
  --dm-piece-w:  #FFD23F;  /* sarı (sıcak) - oyuncu */
  --dm-piece-w-glow: rgba(255,210,63,.55);
  --dm-piece-b:  #FF006E;  /* pembe (soğuk) - AI */
  --dm-piece-b-glow: rgba(255,0,110,.55);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; margin: 0; padding: 0; }
html, body { margin: 0; min-height: 100%; overscroll-behavior: none; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background:
    radial-gradient(circle at 20% 0%,  rgba(255,0,110,.13)   0%, transparent 40%),
    radial-gradient(circle at 80% 30%, rgba(58,134,255,.12)  0%, transparent 45%),
    radial-gradient(circle at 50% 100%,rgba(131,56,236,.16)  0%, transparent 55%),
    linear-gradient(180deg, var(--dm-bg-deep) 0%, var(--dm-bg-mid) 50%, var(--dm-bg-light) 100%);
  color: var(--dm-text);
  min-height: 100vh; min-height: 100svh; min-height: 100dvh;
  overflow: hidden;
  display: flex; justify-content: center; align-items: center;
}

.dm-shell {
  width: min(100vw, 520px);
  height: 100vh; height: 100svh; height: 100dvh;
  display: flex; flex-direction: column;
  padding: 64px 8px calc(8px + env(safe-area-inset-bottom));
  gap: 7px;
  position: relative;
}
@media (max-width: 480px) { .dm-shell { padding-top: 58px; padding-left: 6px; padding-right: 6px; } }

/* ═══ Player info (üstte ve altta) ══════════════════════════ */
.dm-player {
  display: grid; grid-template-columns: auto 1fr auto auto; gap: 8px;
  align-items: center;
  background: rgba(15,15,30,.85);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px;
  padding: 7px 10px;
  flex: 0 0 auto;
  position: relative;
  overflow: hidden;
}
.dm-player::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--accent), transparent 50%);
  opacity: .14; pointer-events: none;
}
.dm-player.dm-active {
  box-shadow: 0 0 18px var(--accent-glow), inset 0 0 12px var(--accent-glow);
  border-color: var(--accent);
}
.dm-player-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark, var(--accent)));
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  box-shadow: 0 0 10px var(--accent-glow);
  position: relative;
}
.dm-player-info { display: flex; flex-direction: column; line-height: 1.1; }
.dm-player-name { font-size: 13px; font-weight: 800; color: #fff; }
.dm-player-meta { font-size: 10px; color: var(--dm-text-dim); margin-top: 1px; }
.dm-player-pieces {
  font-size: 14px; font-weight: 900;
  color: #fff;
  background: rgba(0,0,0,.4);
  padding: 4px 8px; border-radius: 8px;
  min-width: 30px; text-align: center;
}
.dm-player-time {
  font-size: 12px; font-weight: 800;
  color: var(--accent);
  font-family: 'Courier New', monospace;
  letter-spacing: 1px;
  min-width: 42px; text-align: center;
}
.dm-player-w { --accent: var(--dm-yellow); --accent-glow: rgba(255,210,63,.45); --accent-dark: var(--dm-orange); }
.dm-player-b { --accent: var(--dm-pink); --accent-glow: rgba(255,0,110,.55); --accent-dark: var(--dm-purple); }

/* ═══ Board ═════════════════════════════════════════════════ */
.dm-board-wrap {
  flex: 1 1 auto;
  min-height: 0;
  background: linear-gradient(145deg, rgba(15,15,30,.92), rgba(20,20,45,.88));
  border: 1px solid rgba(0,180,216,.20);
  border-radius: 16px;
  box-shadow: 0 10px 28px rgba(0,0,0,.40), inset 0 0 22px rgba(58,134,255,.06);
  display: flex; align-items: center; justify-content: center;
  padding: 8px;
  position: relative;
  overflow: hidden;
}
.dm-board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  border: 2px solid rgba(0,180,216,.40);
  border-radius: 6px;
  background: rgba(0,0,0,.3);
  user-select: none;
  position: relative;
}
.dm-square {
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.dm-square.dm-light { background: var(--dm-sq-light); }
.dm-square.dm-dark  { background: var(--dm-sq-dark); }

/* Highlight overlays */
.dm-square.dm-selected::after {
  content: ""; position: absolute; inset: 4%;
  border: 2px solid var(--dm-yellow);
  border-radius: 50%;
  box-shadow: 0 0 16px rgba(255,210,63,.55);
  pointer-events: none;
  z-index: 2;
}
.dm-square.dm-target::before {
  content: ""; position: absolute;
  width: 32%; height: 32%;
  background: radial-gradient(circle, var(--dm-green) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 2;
  animation: dmPulse 1.2s ease-in-out infinite;
}
.dm-square.dm-capture-target::before {
  background: radial-gradient(circle, var(--dm-red) 0%, transparent 70%);
}
.dm-square.dm-must-move::after {
  content: ""; position: absolute; inset: 8%;
  border: 2px dashed var(--dm-cyan);
  border-radius: 8%;
  pointer-events: none;
  opacity: .65;
  z-index: 2;
}
.dm-square.dm-last-move::after {
  content: ""; position: absolute; inset: 6%;
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 8%;
  pointer-events: none;
  z-index: 1;
}

/* Piece */
.dm-piece {
  width: 75%;
  height: 75%;
  border-radius: 50%;
  position: relative;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: transform .15s, box-shadow .2s;
  z-index: 3;
}
.dm-piece-w {
  background: radial-gradient(circle at 30% 30%, #fff, var(--dm-piece-w) 60%, var(--dm-orange));
  box-shadow:
    0 0 14px var(--dm-piece-w-glow),
    0 4px 8px rgba(0,0,0,.4),
    inset 0 -2px 4px rgba(0,0,0,.2);
  border: 1px solid rgba(255,255,255,.55);
}
.dm-piece-b {
  background: radial-gradient(circle at 30% 30%, #ffb6d1, var(--dm-piece-b) 60%, var(--dm-purple));
  box-shadow:
    0 0 14px var(--dm-piece-b-glow),
    0 4px 8px rgba(0,0,0,.4),
    inset 0 -2px 4px rgba(0,0,0,.2);
  border: 1px solid rgba(255,255,255,.30);
}
/* King icon */
.dm-piece.dm-king::after {
  content: "♛";
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6em;
  color: rgba(255,255,255,.85);
  text-shadow: 0 0 6px rgba(0,0,0,.5);
  pointer-events: none;
}
.dm-piece.dm-can-capture {
  animation: dmCapturePulse 1.1s ease-in-out infinite;
}
.dm-piece.dm-selected {
  transform: scale(1.08);
}

/* Move animation */
.dm-piece.dm-moving {
  z-index: 5;
  transition: transform .35s cubic-bezier(.25,.46,.45,.94);
}

/* ═══ Action buttons ════════════════════════════════════════ */
.dm-actions {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px;
  flex: 0 0 auto;
}
.dm-act {
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(15,15,30,.85);
  color: #fff;
  border-radius: 11px;
  padding: 9px 4px;
  font-size: 11px; font-weight: 700;
  cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 1px;
  transition: transform .08s, background .15s;
  user-select: none;
}
.dm-act-emoji { font-size: 16px; line-height: 1; }
.dm-act:active { transform: scale(.94); background: rgba(58,134,255,.16); }
.dm-act-cost { font-size: 9px; color: var(--dm-yellow); font-weight: 800; }
.dm-act.dm-disabled { opacity: .4; pointer-events: none; }

/* ═══ Overlays ══════════════════════════════════════════════ */
.dm-overlay {
  position: absolute; inset: 0; z-index: 50;
  display: none; align-items: center; justify-content: center;
  background: rgba(5,8,18,.78);
  backdrop-filter: blur(10px);
  padding: 16px;
}
.dm-overlay.dm-show { display: flex; }
.dm-modal {
  width: min(94%, 380px); max-height: 92%; overflow: auto;
  background: linear-gradient(160deg, rgba(20,20,40,.98), rgba(10,10,25,.96));
  border: 1px solid rgba(0,180,216,.32);
  border-radius: 22px;
  padding: 22px 20px;
  box-shadow: 0 20px 50px rgba(0,0,0,.55), 0 0 32px rgba(0,180,216,.18);
  text-align: center;
}
.dm-modal h1 {
  font-size: 26px; margin-bottom: 6px; font-weight: 900;
  background: linear-gradient(90deg, var(--dm-cyan), var(--dm-pink), var(--dm-yellow));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.dm-modal h1.dm-lose-title {
  background: linear-gradient(90deg, var(--dm-pink), var(--dm-orange));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.dm-modal p { color: var(--dm-text-dim); margin-bottom: 12px; line-height: 1.5; font-size: 14px; }

.dm-info-box {
  background: linear-gradient(135deg, rgba(0,180,216,.10), rgba(58,134,255,.06));
  border: 1px solid rgba(0,180,216,.22);
  border-radius: 12px;
  padding: 9px 12px;
  margin: 6px 0;
  font-weight: 800;
  color: #dffcff;
  font-size: 13px;
}
.dm-info-box.dm-warm {
  background: linear-gradient(135deg, rgba(255,210,63,.12), rgba(255,107,53,.08));
  border-color: rgba(255,210,63,.34);
  color: var(--dm-yellow);
}

.dm-btn {
  width: 100%;
  padding: 12px 14px;
  font-size: 15px; font-weight: 900;
  border: 0; border-radius: 14px;
  background: linear-gradient(135deg, var(--dm-cyan), var(--dm-blue), var(--dm-purple));
  color: #fff; cursor: pointer;
  margin-top: 10px;
  box-shadow: 0 6px 18px rgba(58,134,255,.30);
  transition: transform .08s, filter .15s;
}
.dm-btn:active { transform: scale(.97); filter: brightness(1.15); }
.dm-btn.dm-btn-warm {
  background: linear-gradient(135deg, var(--dm-pink), var(--dm-orange), var(--dm-yellow));
  box-shadow: 0 6px 18px rgba(255,107,53,.30);
}
.dm-btn.dm-btn-ghost { background: transparent; border: 1px solid rgba(255,255,255,.18); box-shadow: none; }

/* AI level picker */
.dm-pick-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px;
  margin: 10px 0;
}
.dm-pick {
  padding: 10px 6px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(15,15,30,.78);
  color: var(--dm-text-dim);
  border-radius: 12px;
  font-size: 12px; font-weight: 800;
  cursor: pointer;
  text-align: center;
  display: flex; flex-direction: column; gap: 1px; align-items: center;
  transition: all .15s;
}
.dm-pick-emoji { font-size: 20px; line-height: 1; }
.dm-pick-name { font-size: 12px; color: #fff; }
.dm-pick-meta { font-size: 9px; opacity: .7; font-weight: 600; }
.dm-pick:active { transform: scale(.95); }
.dm-pick.dm-active {
  color: #fff;
  border-color: var(--dm-cyan);
  background: linear-gradient(135deg, rgba(0,180,216,.18), rgba(58,134,255,.10));
  box-shadow: 0 0 14px rgba(0,180,216,.28);
}

/* Settings */
.dm-settings-list { display: flex; flex-direction: column; gap: 8px; margin: 12px 0; }
.dm-settings-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px; border-radius: 14px;
  border: 1px solid rgba(0,180,216,.20);
  background: rgba(0,180,216,.05);
  text-align: left; gap: 10px;
}
.dm-settings-row strong { display: block; font-size: 14px; color: #fff; }
.dm-settings-row span { display: block; font-size: 11px; color: var(--dm-text-dim); margin-top: 2px; line-height: 1.3; }
.dm-toggle {
  min-width: 70px; padding: 8px 10px;
  border-radius: 999px; border: 0; cursor: pointer;
  font-size: 12px; font-weight: 800;
  background: linear-gradient(135deg, var(--dm-cyan), var(--dm-blue));
  color: #fff;
}
.dm-toggle.dm-off {
  background: rgba(15,15,30,.85);
  border: 1px solid rgba(255,255,255,.12);
  color: var(--dm-text-dim);
}

/* Loading spinner (AI thinking) */
.dm-thinking {
  position: absolute;
  bottom: 14px; left: 50%; transform: translateX(-50%);
  background: rgba(15,15,30,.92);
  border: 1px solid rgba(0,180,216,.32);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 12px; font-weight: 700;
  color: var(--dm-cyan);
  display: none;
  align-items: center; gap: 8px;
  box-shadow: 0 0 14px rgba(0,180,216,.28);
  z-index: 4;
}
.dm-thinking.dm-show { display: flex; }
.dm-thinking-dot {
  width: 6px; height: 6px;
  background: var(--dm-cyan);
  border-radius: 50%;
  animation: dmThinking 1.4s ease-in-out infinite;
}
.dm-thinking-dot:nth-child(2) { animation-delay: .2s; }
.dm-thinking-dot:nth-child(3) { animation-delay: .4s; }

/* ═══ Animations ═══════════════════════════════════════════ */
@keyframes dmPulse {
  0%, 100% { opacity: .85; transform: translate(-50%, -50%) scale(1); }
  50%      { opacity: 1;   transform: translate(-50%, -50%) scale(1.18); }
}
.dm-square.dm-target::before, .dm-square.dm-capture-target::before {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
}
@keyframes dmCapturePulse {
  0%, 100% { box-shadow: 0 0 14px var(--accent-glow, rgba(255,0,110,.55)), 0 4px 8px rgba(0,0,0,.4); }
  50%      { box-shadow: 0 0 24px rgba(255,7,58,.85), 0 4px 12px rgba(0,0,0,.4); }
}
.dm-piece-w.dm-can-capture { --accent-glow: var(--dm-piece-w-glow); }
.dm-piece-b.dm-can-capture { --accent-glow: var(--dm-piece-b-glow); }

@keyframes dmThinking {
  0%, 60%, 100% { transform: scale(.6); opacity: .4; }
  30%           { transform: scale(1.2); opacity: 1; }
}
@keyframes dmBoardGlow {
  0%, 100% { box-shadow: 0 10px 24px rgba(0,0,0,.35), 0 0 22px rgba(0,180,216,.10), inset 0 0 18px rgba(58,134,255,.05); }
  50%      { box-shadow: 0 10px 24px rgba(0,0,0,.35), 0 0 32px rgba(0,180,216,.22), inset 0 0 26px rgba(58,134,255,.12); }
}
.dm-board-wrap { animation: dmBoardGlow 4s ease-in-out infinite; }

@keyframes dmCaptureFlash {
  0%   { transform: scale(1) rotate(0deg); opacity: 1; }
  100% { transform: scale(.2) rotate(180deg); opacity: 0; }
}
.dm-piece.dm-captured {
  animation: dmCaptureFlash .35s ease-out forwards;
  z-index: 4;
}

/* Compact mobile */
@media (max-height: 700px) {
  .dm-shell { gap: 5px; padding-top: 56px; }
  .dm-player { padding: 6px 8px; }
  .dm-player-avatar { width: 28px; height: 28px; font-size: 14px; }
  .dm-player-name { font-size: 12px; }
  .dm-player-meta { font-size: 9px; }
  .dm-player-pieces { font-size: 13px; padding: 3px 6px; }
  .dm-act { padding: 7px 4px; font-size: 10px; }
  .dm-act-emoji { font-size: 14px; }
  .dm-modal { padding: 16px 14px; }
  .dm-modal h1 { font-size: 22px; }
}
@media (max-height: 600px) {
  .dm-shell { gap: 3px; padding-top: 50px; }
  .dm-player-time { display: none; }
}