/* Emberfall Vale — UI styling. Dusk-glass HUD over the 3D scene. */
:root {
  --amber: #ffb347;
  --amber-dim: #b97f2e;
  --teal: #7fd8ff;
  --green: #6fe3a0;
  --red: #ff5a5a;
  --violet: #d98cff;
  --panel: rgba(20, 16, 34, 0.86);
  --panel-border: rgba(255, 179, 71, 0.35);
  --text: #f2ecdc;
  --text-dim: #b8b0a0;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; overflow: hidden; }
body {
  font-family: 'Trebuchet MS', 'Segoe UI', Verdana, sans-serif;
  background: #14103a;
  color: var(--text);
  user-select: none;
  -webkit-user-select: none;
}
#app { position: fixed; inset: 0; }
#gl { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }
#overlay { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.hidden { display: none !important; }

/* ---------- floating damage numbers ---------- */
.dmg-num {
  position: absolute; left: 0; top: 0;
  font-weight: bold; font-size: 15px; color: #fff;
  text-shadow: 0 0 4px #000, 0 2px 2px #000;
  pointer-events: none; will-change: transform, opacity;
}
.dmg-num.crit { color: var(--violet); font-size: 19px; }
.dmg-num.shield { color: var(--teal); }
.dmg-num.gold { color: var(--amber); }

/* ---------- top bar ---------- */
#hud { position: absolute; inset: 0; pointer-events: none; }
#hud > * { pointer-events: auto; }
#topbar {
  position: absolute; top: 12px; left: 12px; right: 12px;
  display: flex; align-items: center; gap: 10px;
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 12px; padding: 8px 14px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.45);
}
.stat {
  display: flex; align-items: center; gap: 7px;
  font-size: 19px; font-weight: bold; letter-spacing: 0.5px;
  padding: 2px 12px 2px 8px; border-radius: 8px;
  background: rgba(255,255,255,0.05);
}
.stat .icon { font-size: 16px; }
.stat.lives .icon { color: var(--red); }
.stat.gold .icon { color: var(--amber); }
.stat.wave { color: var(--text-dim); font-size: 16px; font-weight: normal; }
.chip {
  font-size: 12px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px;
  padding: 4px 10px; border-radius: 20px;
  background: rgba(127, 216, 255, 0.15); color: var(--teal); border: 1px solid rgba(127,216,255,0.4);
}
.chip.active { background: rgba(255, 90, 90, 0.15); color: var(--red); border-color: rgba(255,90,90,0.5); }
.chip.final { background: rgba(217, 140, 255, 0.15); color: var(--violet); border-color: rgba(217,140,255,0.5); }
.spacer { flex: 1; }
#speed-controls { display: flex; gap: 4px; }
#speed-controls button, #btn-mute {
  width: 38px; height: 34px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.06); color: var(--text); font-size: 14px; cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}
#speed-controls button:hover, #btn-mute:hover { background: rgba(255,255,255,0.14); }
#speed-controls button.active { background: var(--amber); color: #221804; border-color: var(--amber); font-weight: bold; }
#btn-mute.muted { color: var(--red); border-color: var(--red); }

/* ---------- wave panel ---------- */
#wave-panel {
  position: absolute; top: 68px; right: 12px; width: 250px;
  background: var(--panel); border: 1px solid var(--panel-border); border-radius: 12px;
  padding: 10px 12px; box-shadow: 0 4px 24px rgba(0,0,0,0.45);
  font-size: 13px;
}
#wave-preview-label { color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; font-size: 11px; margin-bottom: 6px; }
#wave-preview { display: flex; flex-wrap: wrap; gap: 5px; }
.preview-tag {
  padding: 3px 8px; border-radius: 6px; font-weight: bold; font-size: 12px;
  border: 1px solid rgba(255,255,255,0.2); background: rgba(255,255,255,0.07);
}
#wave-timer { height: 6px; border-radius: 3px; background: rgba(255,255,255,0.12); margin-top: 9px; overflow: hidden; }
#timer-fill { height: 100%; width: 100%; background: linear-gradient(90deg, var(--amber), #ff7a4a); transition: width 0.2s linear; }
#btn-call {
  margin-top: 9px; width: 100%; padding: 7px 0; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--amber); background: rgba(255,179,71,0.14); color: var(--amber);
  font-weight: bold; font-size: 13px; font-family: inherit; transition: background 0.15s;
}
#btn-call:hover:not(:disabled) { background: rgba(255,179,71,0.3); }
#btn-call:disabled { opacity: 0.4; cursor: default; }

/* ---------- build bar ---------- */
#build-bar {
  position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px; padding: 10px;
  background: var(--panel); border: 1px solid var(--panel-border); border-radius: 14px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
}
.tower-card {
  width: 92px; border-radius: 10px; padding: 8px 6px; text-align: center; cursor: pointer;
  border: 2px solid rgba(255,255,255,0.12); background: rgba(255,255,255,0.05);
  transition: transform 0.12s, border-color 0.12s, background 0.12s;
  position: relative;
}
.tower-card:hover { transform: translateY(-3px); background: rgba(255,255,255,0.1); }
.tower-card.selected { border-color: var(--amber); background: rgba(255,179,71,0.15); transform: translateY(-3px); }
.tower-card.poor { opacity: 0.55; }
.tower-card .swatch { width: 34px; height: 34px; margin: 0 auto 6px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.25); }
.tower-card .tname { font-size: 12px; font-weight: bold; }
.tower-card .trole { font-size: 9.5px; color: var(--text-dim); margin: 3px 0; line-height: 1.25; min-height: 24px; }
.tower-card .tcost { font-size: 13px; font-weight: bold; color: var(--amber); }
.tower-card .hotkey {
  position: absolute; top: 4px; left: 6px; font-size: 10px; color: var(--text-dim);
  border: 1px solid rgba(255,255,255,0.2); border-radius: 4px; padding: 0 4px;
}

/* ---------- tooltip ---------- */
#tooltip {
  position: absolute; pointer-events: none; z-index: 60;
  background: var(--panel); border: 1px solid var(--panel-border); border-radius: 10px;
  padding: 10px 12px; width: 230px; font-size: 12.5px; line-height: 1.45;
  box-shadow: 0 6px 30px rgba(0,0,0,0.5);
}
#tooltip h3 { font-size: 14px; margin-bottom: 2px; }
#tooltip .trole { color: var(--text-dim); margin-bottom: 6px; }
#tooltip .trow { display: flex; justify-content: space-between; gap: 10px; }
#tooltip .trow b { color: var(--amber); }

/* ---------- selection panel ---------- */
#selection-panel {
  position: absolute; bottom: 118px; left: 50%; transform: translateX(-50%);
  width: 330px; background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 12px; padding: 12px 14px; box-shadow: 0 4px 24px rgba(0,0,0,0.5);
}
.sel-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
#sel-name { font-size: 17px; font-weight: bold; }
#sel-tier { color: var(--amber); font-size: 13px; letter-spacing: 2px; }
#sel-close { margin-left: auto; background: none; border: none; color: var(--text-dim); font-size: 20px; cursor: pointer; }
#sel-stats { font-size: 12.5px; line-height: 1.6; color: var(--text-dim); }
#sel-stats b { color: var(--text); }
.sel-actions { display: flex; gap: 8px; margin-top: 10px; }
.sel-actions button {
  flex: 1; padding: 8px 4px; border-radius: 8px; cursor: pointer; font-family: inherit;
  font-size: 12.5px; font-weight: bold; border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.07); color: var(--text); transition: background 0.15s;
}
.sel-actions button:hover:not(:disabled) { background: rgba(255,255,255,0.16); }
#sel-upgrade:not(:disabled) { border-color: var(--green); color: var(--green); }
#sel-sell { border-color: var(--red); color: var(--red); }
.sel-actions button:disabled { opacity: 0.45; cursor: default; }

/* ---------- toasts ---------- */
#toasts {
  position: absolute; bottom: 130px; right: 16px; display: flex; flex-direction: column;
  align-items: flex-end; gap: 6px; pointer-events: none;
}
.toast {
  background: var(--panel); border: 1px solid var(--panel-border); border-radius: 8px;
  padding: 7px 14px; font-size: 13px; font-weight: bold;
  animation: toast-in 0.25s ease-out; box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.toast.error { border-color: var(--red); color: var(--red); }
.toast.gold { border-color: var(--amber); color: var(--amber); }
.toast.info { border-color: var(--teal); color: var(--teal); }
.toast.fade-out { opacity: 0; transition: opacity 0.5s; }
@keyframes toast-in { from { transform: translateX(30px); opacity: 0; } to { transform: none; opacity: 1; } }

#hint {
  position: absolute; bottom: 118px; left: 16px; font-size: 11.5px; color: var(--text-dim);
  background: rgba(20,16,34,0.6); padding: 5px 10px; border-radius: 6px;
}

/* ---------- screens ---------- */
#start-screen, #end-screen {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at 50% 30%, rgba(58,32,90,0.35), rgba(10,6,26,0.82));
  z-index: 50;
}
.panel {
  background: var(--panel); border: 1px solid var(--panel-border); border-radius: 18px;
  padding: 34px 44px; max-width: 640px; text-align: center;
  box-shadow: 0 10px 60px rgba(0,0,0,0.6);
}
.panel h1 {
  font-size: 42px; letter-spacing: 6px; color: var(--amber);
  text-shadow: 0 0 30px rgba(255,179,71,0.4); margin-bottom: 6px;
}
.panel .tag { color: var(--text-dim); margin-bottom: 22px; font-style: italic; }
.howto { text-align: left; background: rgba(255,255,255,0.05); border-radius: 12px; padding: 16px 20px; margin-bottom: 24px; }
.howto h2 { font-size: 15px; color: var(--teal); margin-bottom: 10px; letter-spacing: 1px; text-transform: uppercase; }
.howto ul { list-style: none; }
.howto li { font-size: 13.5px; line-height: 1.5; margin-bottom: 8px; padding-left: 18px; position: relative; color: var(--text); }
.howto li::before { content: '\25B8'; position: absolute; left: 0; color: var(--amber); }
#btn-start, #btn-restart {
  font-family: inherit; font-size: 19px; font-weight: bold; letter-spacing: 1px;
  padding: 13px 40px; border-radius: 12px; cursor: pointer;
  color: #221804; background: linear-gradient(180deg, var(--amber), #e0902f);
  border: 1px solid #ffcf8a; box-shadow: 0 4px 20px rgba(255,179,71,0.35);
  transition: transform 0.12s, box-shadow 0.12s;
}
#btn-start:hover, #btn-restart:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255,179,71,0.5); }
.panel .foot { margin-top: 16px; font-size: 11.5px; color: var(--text-dim); }
#end-stats { display: flex; justify-content: center; gap: 26px; margin: 18px 0 26px; }
#end-stats .es { text-align: center; }
#end-stats .es .v { font-size: 26px; font-weight: bold; color: var(--amber); }
#end-stats .es .l { font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }
#end-screen.victory h1 { color: var(--green); text-shadow: 0 0 30px rgba(111,227,160,0.5); }
#end-screen.defeat h1 { color: var(--red); text-shadow: 0 0 30px rgba(255,90,90,0.5); }

@media (max-width: 900px) {
  .tower-card { width: 78px; }
  #wave-panel { width: 210px; }
  #hint { display: none; }
  .panel h1 { font-size: 32px; }
  .panel { padding: 24px; margin: 12px; }
}