/* ============================================================
   ZUMA — Temple of the Serpent
   ============================================================ */

:root{
  --gold:#e8c069;
  --gold-dim:#a5854a;
  --stone:#2a2118;
  --stone-lite:#4a3b2a;
  --ink:#120d08;
  --parchment:#e9dcc0;
  --jade:#4fb8a0;
  --blood:#c8402f;
  --ui-font: "Trebuchet MS", "Segoe UI", Roboto, system-ui, sans-serif;
  --title-font: Georgia, "Times New Roman", serif;
}

*{ box-sizing:border-box; margin:0; padding:0; }

html,body{
  width:100%; height:100%; overflow:hidden;
  background:#05070a;
  font-family:var(--ui-font);
  color:var(--parchment);
  -webkit-font-smoothing:antialiased;
  -webkit-tap-highlight-color:transparent;
  user-select:none;
}

#stage{
  position:fixed; inset:0;
  display:flex; align-items:center; justify-content:center;
  background:radial-gradient(ellipse at 50% 40%, #12212b 0%, #070b10 60%, #03050a 100%);
}

canvas#game{
  display:block;
  touch-action:none;
  cursor:none;
}

.hidden{ display:none !important; }

/* ============================ Screens ============================ */
.screen{
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(60,90,110,.28), transparent 65%),
    rgba(4,7,11,.82);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  z-index:20;
  animation:fadeIn .28s ease-out;
  padding:16px;
}
@keyframes fadeIn{ from{opacity:0} to{opacity:1} }

.panel{
  position:relative;
  min-width:340px;
  max-width:460px;
  width:100%;
  padding:30px 34px 26px;
  text-align:center;
  background:
    linear-gradient(180deg, rgba(58,46,32,.96), rgba(28,22,15,.97));
  border:2px solid var(--gold-dim);
  border-radius:14px;
  box-shadow:
    0 0 0 1px rgba(0,0,0,.6),
    0 18px 50px rgba(0,0,0,.7),
    inset 0 1px 0 rgba(255,225,170,.16);
}
.panel.wide{ max-width:720px; }
.panel.scrollable{ max-height:86vh; overflow-y:auto; }

.panel::before,.panel::after{
  content:""; position:absolute; width:14px; height:14px;
  border:2px solid var(--gold); opacity:.65;
}
.panel::before{ top:6px; left:6px; border-right:0; border-bottom:0; border-radius:4px 0 0 0;}
.panel::after{ bottom:6px; right:6px; border-left:0; border-top:0; border-radius:0 0 4px 0;}

h1.title{
  font-family:var(--title-font);
  font-size:clamp(48px,10vw,84px);
  letter-spacing:.18em;
  line-height:1;
  color:var(--gold);
  text-shadow:
    0 2px 0 #6b5327, 0 4px 0 #3a2c14,
    0 8px 24px rgba(232,192,105,.45);
  margin-bottom:2px;
}
.subtitle{
  font-family:var(--title-font);
  font-style:italic;
  letter-spacing:.28em;
  text-transform:uppercase;
  font-size:12px;
  color:var(--gold-dim);
  margin-bottom:22px;
}
h2{
  font-family:var(--title-font);
  font-size:28px; letter-spacing:.08em;
  color:var(--gold);
  margin-bottom:16px;
  text-shadow:0 2px 8px rgba(0,0,0,.7);
}
h2.gold{ color:#ffe9a8; text-shadow:0 0 24px rgba(255,220,130,.65); }
h3{
  font-family:var(--title-font);
  color:var(--gold);
  font-size:17px; letter-spacing:.06em;
  margin:18px 0 8px;
}
.loading-text{ color:var(--gold-dim); letter-spacing:.2em; font-size:12px; text-transform:uppercase;
  animation:pulse 1.4s ease-in-out infinite; }
@keyframes pulse{ 0%,100%{opacity:.35} 50%{opacity:1} }

/* ============================ Buttons ============================ */
.menu-buttons{ display:flex; flex-direction:column; gap:9px; margin:6px 0 14px; }
.row-center{ display:flex; gap:10px; justify-content:center; flex-wrap:wrap; margin-top:16px; }

.btn{
  font-family:var(--ui-font);
  font-size:15px; font-weight:700;
  letter-spacing:.1em; text-transform:uppercase;
  padding:11px 20px;
  color:var(--parchment);
  background:linear-gradient(180deg,#5c4a33,#332718);
  border:1px solid #7a6340;
  border-radius:8px;
  cursor:pointer;
  transition:transform .08s, filter .15s, box-shadow .15s;
  box-shadow:0 3px 0 #1a1309, inset 0 1px 0 rgba(255,230,180,.18);
}
.btn:hover{ filter:brightness(1.28); box-shadow:0 3px 0 #1a1309, 0 0 18px rgba(232,192,105,.3), inset 0 1px 0 rgba(255,230,180,.25); }
.btn:active{ transform:translateY(3px); box-shadow:0 0 0 #1a1309, inset 0 1px 0 rgba(255,230,180,.12); }
.btn.primary{
  background:linear-gradient(180deg,#c99a44,#8a6520);
  border-color:#f0d089; color:#2a1d07;
  text-shadow:0 1px 0 rgba(255,240,200,.5);
  box-shadow:0 3px 0 #4d3810, inset 0 1px 0 rgba(255,245,210,.5);
}
.btn.primary:active{ box-shadow:0 0 0 #4d3810; }
.btn.danger{ background:linear-gradient(180deg,#7c2f24,#4a1a12); border-color:#b4503c; }
.btn:disabled{ opacity:.4; cursor:not-allowed; filter:grayscale(.6); }

.icon-btn{
  width:34px;height:34px;
  font-weight:900; font-size:13px; letter-spacing:1px;
  color:var(--gold);
  background:rgba(20,15,10,.75);
  border:1px solid var(--gold-dim);
  border-radius:8px; cursor:pointer;
  pointer-events:auto;
  transition:filter .15s;
}
.icon-btn:hover{ filter:brightness(1.5); }

.foot{ font-size:11px; color:#8a7a5e; letter-spacing:.12em; margin-top:6px; }

/* ============================ Level grid ============================ */
#level-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(148px,1fr));
  gap:10px;
  margin-top:6px;
}
.lvl{
  position:relative;
  padding:12px 8px 10px;
  border:1px solid #6b5637;
  border-radius:10px;
  background:linear-gradient(180deg,rgba(84,66,42,.6),rgba(30,23,15,.85));
  cursor:pointer;
  text-align:center;
  transition:transform .1s, filter .15s;
  overflow:hidden;
}
.lvl:hover{ transform:translateY(-2px); filter:brightness(1.25); }
.lvl .n{ font-family:var(--title-font); font-size:22px; color:var(--gold); line-height:1; }
.lvl .nm{ font-size:11px; letter-spacing:.09em; text-transform:uppercase; color:#c3b18f; margin-top:4px; }
.lvl .bs{ font-size:10px; color:var(--jade); margin-top:5px; letter-spacing:.05em; min-height:12px; }
.lvl .stars{ margin-top:4px; font-size:12px; color:var(--gold); letter-spacing:2px; min-height:14px; }
.lvl.locked{ cursor:not-allowed; filter:grayscale(.85) brightness(.5); }
.lvl.locked::after{ content:"🔒"; position:absolute; inset:0; display:flex; align-items:center; justify-content:center; font-size:26px; }
.lvl .swatch{ position:absolute; top:0; left:0; right:0; height:4px; }

/* ============================ Settings ============================ */
.settings{ display:flex; flex-direction:column; gap:12px; text-align:left; }
.setting{
  display:flex; align-items:center; justify-content:space-between; gap:14px;
  font-size:13px; letter-spacing:.08em; text-transform:uppercase; color:#cbbb99;
}
.setting select{
  font-family:var(--ui-font); font-size:13px;
  background:#2a2015; color:var(--parchment);
  border:1px solid #6b5637; border-radius:6px; padding:6px 8px;
}
.setting input[type=range]{ width:150px; accent-color:var(--gold); }
.setting input[type=checkbox]{ width:18px; height:18px; accent-color:var(--gold); }

/* ============================ How to ============================ */
.howto{ text-align:left; font-size:14px; line-height:1.65; color:#d6c8a8; }
.howto ul{ margin:8px 0 0 20px; }
.howto li{ margin-bottom:5px; }
.howto b{ color:var(--gold); }
table.keys{ width:100%; font-size:13px; border-collapse:collapse; }
table.keys td{ padding:5px 8px; border-bottom:1px dashed rgba(200,175,120,.2); }
table.keys td:first-child{ color:var(--gold); width:44%; }

.power-list{ display:grid; grid-template-columns:repeat(auto-fill,minmax(210px,1fr)); gap:10px; }
.pw{ display:flex; gap:10px; align-items:center; font-size:12px; line-height:1.4; }
.pw canvas{ flex:0 0 auto; }
.pw b{ display:block; color:var(--gold); font-size:13px; letter-spacing:.05em; }

/* ============================ Tally ============================ */
.tally{ font-size:14px; line-height:1.9; color:#d6c8a8; }
.tally .row{ display:flex; justify-content:space-between; border-bottom:1px dashed rgba(200,175,120,.18); }
.tally .row.big{ font-size:20px; color:var(--gold); border-bottom:none; margin-top:8px;
  font-family:var(--title-font); }
.tally .row span:last-child{ color:#fff2cf; font-variant-numeric:tabular-nums; }

/* ============================ Scores ============================ */
#score-body{ font-size:13px; text-align:left; }
#score-body table{ width:100%; border-collapse:collapse; }
#score-body th{ color:var(--gold); text-align:left; font-size:11px; letter-spacing:.14em;
  text-transform:uppercase; padding:6px 8px; border-bottom:1px solid var(--gold-dim); }
#score-body td{ padding:5px 8px; border-bottom:1px dashed rgba(200,175,120,.15); font-variant-numeric:tabular-nums; }
.stat-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(160px,1fr)); gap:8px; margin-bottom:18px; }
.stat{ background:rgba(0,0,0,.28); border:1px solid rgba(200,175,120,.22); border-radius:8px; padding:8px 10px; }
.stat b{ display:block; color:var(--gold); font-size:19px; font-family:var(--title-font); }
.stat span{ font-size:10px; letter-spacing:.13em; text-transform:uppercase; color:#9d8c6c; }
.ach{ display:flex; gap:9px; align-items:center; padding:6px 8px; border-radius:8px; margin-bottom:5px;
  background:rgba(0,0,0,.25); border:1px solid rgba(200,175,120,.16); }
.ach .ic{ font-size:20px; width:26px; text-align:center; }
.ach.locked{ opacity:.38; filter:grayscale(1); }
.ach b{ font-size:12.5px; color:var(--gold); letter-spacing:.05em; }
.ach small{ display:block; font-size:11px; color:#a4957a; }

/* ============================ HUD ============================ */
#hud{
  position:absolute; inset:0;
  pointer-events:none;
  z-index:10;
  display:flex; flex-direction:column;
  padding:10px 12px;
  font-variant-numeric:tabular-nums;
}
.hud-row{ display:flex; align-items:flex-start; gap:10px; }
.hud-top{ justify-content:space-between; }
.hud-box{
  min-width:96px;
  padding:5px 12px 6px;
  background:linear-gradient(180deg,rgba(46,36,24,.86),rgba(18,14,9,.86));
  border:1px solid rgba(200,175,120,.42);
  border-radius:9px;
  text-align:center;
  box-shadow:0 3px 12px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,230,180,.14);
}
.hud-label{ display:block; font-size:9px; letter-spacing:.18em; text-transform:uppercase; color:#a2916f; }
.hud-val{ display:block; font-family:var(--title-font); font-size:22px; color:var(--gold); line-height:1.15;
  text-shadow:0 0 12px rgba(232,192,105,.35); }
.hud-val.small{ font-size:13px; letter-spacing:.06em; color:#d8c9a5; text-shadow:none; }
.hud-val.bump{ animation:bump .3s ease-out; }
@keyframes bump{ 0%{transform:scale(1.35); color:#fff5d5} 100%{transform:scale(1)} }

.hud-sub{ margin-top:8px; align-items:center; gap:14px; }
#progress-wrap{
  position:relative; width:190px; height:13px;
  background:rgba(10,8,5,.75);
  border:1px solid rgba(200,175,120,.38);
  border-radius:7px; overflow:hidden;
}
#progress-fill{
  position:absolute; inset:0; width:100%;
  background:linear-gradient(90deg,#3f8f6f,#7ad1a6);
  transition:width .25s ease-out;
}
#progress-text{
  position:absolute; inset:0; font-size:9px; line-height:12px; text-align:center;
  color:#04120c; font-weight:800; letter-spacing:.12em;
}
#powerbar{ display:flex; gap:6px; flex-wrap:wrap; }
.pchip{
  display:flex; align-items:center; gap:5px;
  padding:3px 9px 3px 6px;
  font-size:11px; font-weight:700; letter-spacing:.06em;
  border-radius:20px;
  background:rgba(10,8,5,.8);
  border:1px solid currentColor;
  animation:chipIn .25s ease-out;
}
@keyframes chipIn{ from{transform:scale(.5);opacity:0} to{transform:scale(1);opacity:1} }
.pchip .t{ font-variant-numeric:tabular-nums; opacity:.85; }

#combo-flash{
  position:absolute; left:50%; top:20%;
  transform:translate(-50%,-50%);
  font-family:var(--title-font);
  font-size:52px; font-weight:700;
  color:#ffe9a8;
  text-shadow:0 0 30px rgba(255,190,60,.9), 0 4px 0 #7a4a10;
  opacity:0; pointer-events:none;
}
#combo-flash.go{ animation:comboPop .9s cubic-bezier(.2,1.4,.4,1) forwards; }
@keyframes comboPop{
  0%{ opacity:0; transform:translate(-50%,-50%) scale(.3) rotate(-8deg); }
  25%{ opacity:1; transform:translate(-50%,-50%) scale(1.15) rotate(2deg); }
  70%{ opacity:1; transform:translate(-50%,-50%) scale(1) rotate(0); }
  100%{ opacity:0; transform:translate(-50%,-90%) scale(.95); }
}

/* ============================ Toasts / banner ============================ */
#toasts{
  position:absolute; right:14px; bottom:14px;
  display:flex; flex-direction:column; gap:8px; align-items:flex-end;
  z-index:30; pointer-events:none;
}
.toast{
  display:flex; gap:10px; align-items:center;
  padding:9px 14px;
  background:linear-gradient(180deg,rgba(62,49,30,.97),rgba(26,20,12,.97));
  border:1px solid var(--gold);
  border-radius:10px;
  box-shadow:0 6px 26px rgba(0,0,0,.6), 0 0 22px rgba(232,192,105,.22);
  animation:toastIn .4s cubic-bezier(.2,1.3,.4,1), toastOut .5s ease-in 3.5s forwards;
  max-width:300px;
}
.toast .ic{ font-size:24px; }
.toast b{ display:block; color:var(--gold); font-size:13px; letter-spacing:.06em; }
.toast small{ font-size:11px; color:#bdae8e; }
@keyframes toastIn{ from{ transform:translateX(120%); opacity:0 } to{ transform:none; opacity:1 } }
@keyframes toastOut{ to{ transform:translateX(120%); opacity:0 } }

#banner{
  position:absolute; left:0; right:0; top:38%;
  text-align:center; pointer-events:none; z-index:15;
  font-family:var(--title-font);
  font-size:clamp(34px,7vw,72px);
  letter-spacing:.12em;
  color:#ffe9a8;
  text-shadow:0 0 40px rgba(255,180,40,.85), 0 5px 0 #6d3f0c, 0 8px 24px rgba(0,0,0,.8);
  opacity:0;
}
#banner.go{ animation:bannerAnim 1.9s ease-out forwards; }
@keyframes bannerAnim{
  0%{ opacity:0; transform:scale(2.2); filter:blur(14px); }
  18%{ opacity:1; transform:scale(1); filter:blur(0); }
  75%{ opacity:1; transform:scale(1); }
  100%{ opacity:0; transform:scale(1.12); }
}

/* ============================ Mobile ============================ */
@media (max-width:640px){
  .panel{ padding:22px 18px 18px; min-width:0; }
  .hud-box{ min-width:74px; padding:3px 8px 4px; }
  .hud-val{ font-size:17px; }
  #progress-wrap{ width:120px; }
  h1.title{ letter-spacing:.1em; }
}
@media (max-height:520px){
  .panel{ padding:16px 18px; }
  h1.title{ font-size:44px; }
  .subtitle{ margin-bottom:12px; }
  .menu-buttons{ gap:6px; }
  .btn{ padding:8px 16px; font-size:13px; }
}