/* ================= Design tokens ================= */
:root{
  --bg-1:#151233;
  --bg-2:#241b4d;
  --accent:#8b5cf6;
  --panel:rgba(255,255,255,0.06);
  --panel-border:rgba(255,255,255,0.12);
  --text:#f4f2ff;
  --text-dim:#b9b2da;

  --red-main:#e5484d; --red-dark:#a4222a; --red-light:#ffb3b6;
  --green-main:#30a46c; --green-dark:#18794e; --green-light:#b7f2d3;
  --yellow-main:#f5b537; --yellow-dark:#a86a00; --yellow-light:#ffe9b3;
  --blue-main:#3b82f6; --blue-dark:#1d4ed8; --blue-light:#b6d4ff;

  --board-bg:#fbf9f4;
  --radius-lg:20px;
  --radius-md:12px;
  --shadow-soft:0 10px 30px rgba(0,0,0,0.35);
}

*{box-sizing:border-box;}
html,body{
  margin:0; padding:0; height:100%;
  font-family:'Segoe UI',system-ui,-apple-system,sans-serif;
  background:radial-gradient(ellipse at top, var(--bg-2), var(--bg-1) 70%);
  color:var(--text);
  overscroll-behavior:none;
}
body{
  width:100vw; height:100dvh; overflow:hidden;
  -webkit-tap-highlight-color:transparent;
}
button{font-family:inherit; cursor:pointer;}
kbd{background:#2a2354;border:1px solid #4b3f8a;border-radius:4px;padding:1px 6px;font-size:0.85em;}

#app{width:100%; height:100%; position:relative;}

/* ================= Screens ================= */
.screen{
  position:absolute; inset:0;
  display:none;
  width:100%; height:100%;
}
.screen.active{display:flex;}

/* ================= Main Menu ================= */
#screen-main-menu{
  align-items:center; justify-content:center;
  overflow:hidden;
}
.menu-bg-board{position:absolute; inset:0; opacity:0.35; pointer-events:none;}
.floating-token{
  position:absolute; width:60px; height:60px; border-radius:50%;
  box-shadow:0 8px 20px rgba(0,0,0,0.4), inset 0 -6px 10px rgba(0,0,0,0.25), inset 0 6px 8px rgba(255,255,255,0.5);
  animation:float 6s ease-in-out infinite;
}
.tk-red{background:radial-gradient(circle at 35% 30%, var(--red-light), var(--red-main) 60%, var(--red-dark)); top:12%; left:15%; animation-delay:0s;}
.tk-green{background:radial-gradient(circle at 35% 30%, var(--green-light), var(--green-main) 60%, var(--green-dark)); top:20%; right:18%; animation-delay:1.5s;}
.tk-yellow{background:radial-gradient(circle at 35% 30%, var(--yellow-light), var(--yellow-main) 60%, var(--yellow-dark)); bottom:16%; right:22%; animation-delay:3s;}
.tk-blue{background:radial-gradient(circle at 35% 30%, var(--blue-light), var(--blue-main) 60%, var(--blue-dark)); bottom:14%; left:20%; animation-delay:4.5s;}
@keyframes float{
  0%,100%{transform:translateY(0) rotate(0deg);}
  50%{transform:translateY(-24px) rotate(10deg);}
}

.menu-content{position:relative; z-index:1; text-align:center; padding:24px;}
.game-title{
  font-size:clamp(56px,12vw,110px); margin:0; letter-spacing:10px;
  background:linear-gradient(135deg,var(--red-main),var(--yellow-main),var(--green-main),var(--blue-main));
  -webkit-background-clip:text; background-clip:text; color:transparent;
  filter:drop-shadow(0 6px 18px rgba(0,0,0,0.5));
  font-weight:900;
}
.game-subtitle{color:var(--text-dim); font-size:clamp(14px,2.4vw,20px); margin:0 0 36px; letter-spacing:2px;}
.menu-buttons{display:flex; flex-direction:column; gap:14px; width:min(320px,80vw); margin:0 auto;}

.btn{
  border:none; border-radius:14px; padding:16px 22px; font-size:17px; font-weight:600;
  transition:transform .15s ease, box-shadow .15s ease, filter .15s ease;
  min-height:52px;
}
.btn:active{transform:scale(0.96);}
.btn-primary{
  background:linear-gradient(135deg,#8b5cf6,#6d28d9);
  color:#fff; box-shadow:0 8px 20px rgba(109,40,217,0.45);
}
.btn-primary:hover{filter:brightness(1.08);}
.btn-secondary{
  background:var(--panel); color:var(--text); border:1px solid var(--panel-border);
  backdrop-filter:blur(6px);
}
.btn-secondary:hover{background:rgba(255,255,255,0.12);}

/* ================= Player Select ================= */
#screen-player-select{align-items:center; justify-content:center; padding:20px;}
.panel-card{
  background:var(--panel); border:1px solid var(--panel-border); border-radius:var(--radius-lg);
  padding:28px; width:min(520px,94vw); backdrop-filter:blur(10px); box-shadow:var(--shadow-soft);
  max-height:92vh; overflow-y:auto;
}
.panel-card h2{margin-top:0; text-align:center;}
.count-tabs{display:flex; gap:8px; margin-bottom:18px;}
.count-tab{
  flex:1; padding:10px; border-radius:10px; border:1px solid var(--panel-border);
  background:transparent; color:var(--text-dim); font-weight:600;
}
.count-tab.active{background:var(--accent); color:#fff; border-color:var(--accent);}

.player-rows{display:flex; flex-direction:column; gap:10px; margin-bottom:20px;}
.player-row{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding:12px 14px; border-radius:12px; background:rgba(255,255,255,0.04);
  border:1px solid var(--panel-border);
}
.player-row .swatch{width:16px; height:16px; border-radius:50%; flex-shrink:0;}
.player-row .row-label{display:flex; align-items:center; gap:10px; font-weight:600;}
.type-toggle{display:flex; border-radius:10px; overflow:hidden; border:1px solid var(--panel-border);}
.type-toggle button{border:none; padding:8px 14px; background:transparent; color:var(--text-dim); font-size:13px; font-weight:600;}
.type-toggle button.active{background:var(--accent); color:#fff;}
.select-actions{display:flex; gap:10px; justify-content:space-between;}
.select-actions .btn{flex:1;}

/* ================= Game Screen Layout ================= */
#screen-game{padding:0;}
.game-layout{
  display:flex; flex-direction:column; width:100%; height:100%;
  padding:env(safe-area-inset-top,0) env(safe-area-inset-right,0) env(safe-area-inset-bottom,0) env(safe-area-inset-left,0);
}
.hud-top{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding:8px 14px; flex-wrap:wrap;
}
.hud-players{display:flex; gap:8px; flex-wrap:wrap;}
.player-chip{
  display:flex; align-items:center; gap:6px; padding:6px 10px; border-radius:999px;
  background:var(--panel); border:1px solid var(--panel-border); font-size:12px; font-weight:700;
  opacity:0.6; transition:opacity .2s, box-shadow .2s;
}
.player-chip.active-turn{opacity:1; box-shadow:0 0 0 2px var(--chip-color,#fff), 0 0 14px var(--chip-color,#fff);}
.player-chip .dot{width:10px; height:10px; border-radius:50%; background:var(--chip-color,#fff);}
.player-chip .ai-tag{font-size:9px; opacity:0.7;}
.player-chip .fin-tag{font-size:10px;}

.hud-actions{display:flex; gap:8px;}
.icon-btn{
  width:38px; height:38px; border-radius:50%; border:1px solid var(--panel-border);
  background:var(--panel); color:var(--text); font-size:16px; display:flex; align-items:center; justify-content:center;
}
.icon-btn:hover{background:rgba(255,255,255,0.14);}

.board-area{flex:1; display:flex; align-items:center; justify-content:center; min-height:0; padding:6px;}
.board-stage{position:relative; width:min(90vh,92vw); height:min(90vh,92vw); max-width:720px; max-height:720px;}
.board-wrapper{
  position:relative; width:100%; height:100%;
  border-radius:18px; box-shadow:var(--shadow-soft);
  background:var(--board-bg);
  touch-action:none;
}

.hud-bottom{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom,0));
  flex-wrap:wrap;
}
.turn-indicator{
  display:flex; align-items:center; gap:8px; font-weight:700; font-size:14px;
  background:var(--panel); border:1px solid var(--panel-border); padding:8px 14px; border-radius:999px;
}
.turn-dot{width:12px; height:12px; border-radius:50%; background:#fff; box-shadow:0 0 10px currentColor;}
.mini-stats{font-size:12px; color:var(--text-dim); display:flex; gap:12px;}

/* ================= Dice ================= */
.dice-area{
  position:absolute; z-index:3; width:80px; height:80px; padding:8px; display:flex; align-items:center; justify-content:center;
  background:rgba(255,255,255,0.96); border:2px solid var(--dice-color,#fff); border-radius:14px;
  box-shadow:0 8px 18px rgba(0,0,0,0.35);
  transition:top .25s ease, right .25s ease, bottom .25s ease, left .25s ease;
}
.dice-area.active-red{--dice-color:var(--red-main); top:6%; left:-80px;}
.dice-area.active-green{--dice-color:var(--green-main); top:6%; right:-80px;}
.dice-area.active-yellow{--dice-color:var(--yellow-main); right:-80px; bottom:6%;}
.dice-area.active-blue{--dice-color:var(--blue-main); bottom:6%; left:-80px;}
.dice{
  width:64px; height:64px; border-radius:16px; border:2px solid #000;
  background:linear-gradient(145deg,#ffffff,#e5e7eb);
  box-shadow:0 8px 18px rgba(0,0,0,0.4), inset 0 2px 3px rgba(255,255,255,0.9);
  display:flex; align-items:center; justify-content:center;
  transition:transform .15s;
}
.dice:active{transform:scale(0.92);}
.dice.disabled{opacity:0.4; pointer-events:none;}
.dice.rolling{animation:diceSpin .5s linear infinite;}
.dice.bounce{animation:diceBounce .3s ease;}
@keyframes diceSpin{ from{transform:rotate(0);} to{transform:rotate(360deg);} }
@keyframes diceBounce{ 0%{transform:scale(1);} 40%{transform:scale(1.18);} 100%{transform:scale(1);} }
.dice-face-svg{width:70%; height:70%; fill:#000;}

/* ================= Board Grid ================= */
.ludo-grid{
  position:absolute; inset:0;
  display:grid;
  grid-template-columns:repeat(15,1fr);
  grid-template-rows:repeat(15,1fr);
  border-radius:16px; overflow:hidden;
  border:3px solid #2a2354;
}
.token-layer{
  position:absolute; inset:0;
  display:grid;
  grid-template-columns:repeat(15,1fr);
  grid-template-rows:repeat(15,1fr);
  pointer-events:none;
}
.cell{background:#fbf9f4; border:1px solid rgba(0,0,0,0.06); position:relative;}
.cell-home-lane{position:relative;}
.lane-red{background:var(--red-light);}
.lane-green{background:var(--green-light);}
.lane-yellow{background:var(--yellow-light);}
.lane-blue{background:var(--blue-light);}
.cell.safe::after{
  content:"★"; position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  font-size:60%; color:rgba(0,0,0,0.35);
}
.start-cell.start-red{background:var(--red-main);}
.start-cell.start-green{background:var(--green-main);}
.start-cell.start-yellow{background:var(--yellow-main);}
.start-cell.start-blue{background:var(--blue-main);}
.start-cell.safe::after{color:rgba(255,255,255,0.75);}

.base{position:relative; border-radius:10px;}
.base-red{background:var(--red-main);}
.base-green{background:var(--green-main);}
.base-yellow{background:var(--yellow-main);}
.base-blue{background:var(--blue-main);}
.base-inner{
  position:absolute; inset:14%; background:#fff; border-radius:14px;
  display:grid; grid-template-columns:1fr 1fr; grid-template-rows:1fr 1fr; gap:8%;
  padding:10%; box-shadow:inset 0 2px 8px rgba(0,0,0,0.15);
}
.base-slot{border-radius:50%; background:rgba(0,0,0,0.06); box-shadow:inset 0 2px 4px rgba(0,0,0,0.15);}

.centre-home{position:relative;}
.centre-svg{width:100%; height:100%; display:block;}
.tri-red{fill:var(--red-main);} .tri-green{fill:var(--green-main);}
.tri-yellow{fill:var(--yellow-main);} .tri-blue{fill:var(--blue-main);}
.centre-trophy{
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  font-size:min(6vw,34px); filter:drop-shadow(0 2px 3px rgba(0,0,0,0.5));
  pointer-events:none;
}

/* ================= Tokens ================= */
.token{
  position:relative; width:78%; height:78%; margin:11%;
  border-radius:50%; pointer-events:auto; cursor:pointer;
  box-shadow:0 4px 8px rgba(0,0,0,0.45), inset 0 -4px 6px rgba(0,0,0,0.3), inset 0 3px 4px rgba(255,255,255,0.65);
  transition:transform .18s ease, box-shadow .18s ease;
  z-index:2;
}
.token.color-red{background:radial-gradient(circle at 35% 28%, var(--red-light), var(--red-main) 55%, var(--red-dark));}
.token.color-green{background:radial-gradient(circle at 35% 28%, var(--green-light), var(--green-main) 55%, var(--green-dark));}
.token.color-yellow{background:radial-gradient(circle at 35% 28%, var(--yellow-light), var(--yellow-main) 55%, var(--yellow-dark));}
.token.color-blue{background:radial-gradient(circle at 35% 28%, var(--blue-light), var(--blue-main) 55%, var(--blue-dark));}
.token::after{
  content:""; position:absolute; inset:22%; border-radius:50%;
  background:rgba(255,255,255,0.35);
}
.token.selectable{
  animation:tokenPulse 1s ease-in-out infinite;
  box-shadow:0 0 0 3px #fff, 0 0 16px 4px #fff, 0 4px 8px rgba(0,0,0,0.45);
}
.token.selectable:hover{transform:scale(1.12);}
@keyframes tokenPulse{
  0%,100%{filter:brightness(1);}
  50%{filter:brightness(1.35);}
}
.token.moving{transition:top .18s linear, left .18s linear, transform .18s ease;}
.token.captured-flash{animation:captureFlash .5s ease;}
@keyframes captureFlash{
  0%{transform:scale(1); opacity:1;}
  60%{transform:scale(1.4); opacity:0.4;}
  100%{transform:scale(0.2); opacity:0;}
}
.token.stack-offset-1{transform:translate(14%,0);}
.token.stack-offset-2{transform:translate(0,14%);}
.token.stack-offset-3{transform:translate(14%,14%);}

/* ================= Modals ================= */
.modal-overlay{
  position:fixed; inset:0; background:rgba(10,6,30,0.72);
  display:none; align-items:center; justify-content:center; z-index:50; padding:16px;
  backdrop-filter:blur(4px);
}
.modal-overlay.active{display:flex;}
.modal-card{
  background:linear-gradient(160deg,#241b4d,#1a1440);
  border:1px solid var(--panel-border); border-radius:var(--radius-lg);
  padding:26px; width:min(480px,94vw); max-height:88vh; overflow-y:auto;
  box-shadow:var(--shadow-soft); text-align:center;
}
.howto-card{text-align:left;}
.howto-body h3{margin-bottom:4px; font-size:15px;}
.howto-body p{margin-top:0; color:var(--text-dim); font-size:14px; line-height:1.5;}
.modal-close{margin-top:14px; width:100%;}

.settings-row{display:flex; align-items:center; justify-content:space-between; padding:14px 0;}
.toggle-switch{
  width:50px; height:28px; border-radius:999px; border:none; background:#463b8a; position:relative;
}
.toggle-switch[aria-checked="true"]{background:var(--accent);}
.toggle-knob{
  position:absolute; top:3px; left:3px; width:22px; height:22px; border-radius:50%; background:#fff;
  transition:left .18s;
}
.toggle-switch[aria-checked="true"] .toggle-knob{left:25px;}

.pause-actions{display:flex; flex-direction:column; gap:10px; margin-top:14px;}

.victory-card{padding-top:34px;}
.victory-emoji{font-size:56px; animation:victoryPop .5s ease;}
@keyframes victoryPop{0%{transform:scale(0);} 60%{transform:scale(1.2);} 100%{transform:scale(1);}}
.victory-title{margin:6px 0 2px; letter-spacing:4px; font-size:28px;}
.victory-winner{font-weight:700; color:var(--yellow-light); margin-bottom:14px;}
.victory-stats{display:flex; justify-content:center; gap:18px; flex-wrap:wrap; margin-bottom:14px; font-size:13px; color:var(--text-dim);}
.victory-stats b{display:block; color:var(--text); font-size:17px;}
.victory-ranking{display:flex; flex-direction:column; gap:6px; margin-bottom:16px;}
.rank-row{display:flex; align-items:center; justify-content:space-between; padding:8px 12px; background:rgba(255,255,255,0.05); border-radius:10px; font-size:13px;}
.victory-actions{display:flex; gap:10px;}
.victory-actions .btn{flex:1;}

/* ================= Toast ================= */
.toast{
  position:fixed; left:50%; bottom:120px; transform:translateX(-50%) translateY(20px);
  background:rgba(20,14,50,0.95); border:1px solid var(--panel-border); padding:10px 18px;
  border-radius:12px; font-size:13px; opacity:0; pointer-events:none; transition:opacity .25s, transform .25s;
  z-index:60; max-width:90vw; text-align:center;
}
.toast.show{opacity:1; transform:translateX(-50%) translateY(0);}

.paused-locked{pointer-events:none; filter:grayscale(0.3) brightness(0.85);}

/* ================= Responsive ================= */
@media (max-width:720px){
  .game-title{letter-spacing:6px;}
  .hud-top{padding:6px 10px;}
  .player-chip{font-size:11px; padding:5px 8px;}
  .dice{width:56px; height:56px;}
  .icon-btn{width:34px; height:34px; font-size:14px;}
  .dice-area{width:72px; height:72px; padding:7px;}
  .dice-area.active-red{top:-84px; left:6%;}
  .dice-area.active-green{top:-84px; right:6%;}
  .dice-area.active-yellow{right:6%; bottom:-84px;}
  .dice-area.active-blue{bottom:-84px; left:6%;}
}
@media (max-height:640px) and (orientation:landscape){
  .game-layout{flex-direction:row; flex-wrap:wrap;}
  .hud-top{width:100%; order:1;}
  .board-area{order:2; flex:1 1 auto;}
  .hud-bottom{width:100%; order:3;}
}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important;}
}