/* ========= style.css — Pool Edition ========= */

/* Reset */
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; width: 100%; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #eaf7ff;
  background: linear-gradient(180deg, #061018, #071117 60%, #051018);
  display: grid;
  place-items: center;
  overflow: hidden;
}

/* Main container: rounded, glassy, “indoor pool” */
.sim-container.pool-theme {
  position: relative;
  width: min(1100px, 94vw);
  height: min(88vh, 900px);
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.12);
  background:
    radial-gradient(140% 100% at 50% 0%, rgba(0, 200, 255, 0.10), rgba(0,0,0,0) 60%),
    radial-gradient(140% 100% at 50% 100%, rgba(0, 160, 210, 0.08), rgba(0,0,0,0) 60%),
    rgba(255,255,255,0.04);
  box-shadow:
    0 12px 40px rgba(0,0,0,0.55),
    inset 0 0 0 1px rgba(255,255,255,0.05);
  backdrop-filter: blur(10px) saturate(125%);
}

/* Canvas: tile grid and water gradient */
#pool {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 24px;
  background:
    radial-gradient(120% 100% at 50% 10%, rgba(255,255,255,0.10), rgba(255,255,255,0) 60%),
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(180deg, rgba(0,140,200,0.25), rgba(0,90,140,0.25));
  background-size:
    100% 100%, 36px 36px, 36px 36px, 100% 100%;
  background-position: center;
  filter: saturate(115%) brightness(0.95);
}

/* Team logo */
.team-logo {
  position: absolute;
  top: 12px;
  right: 12px;
  width: clamp(44px, 7vw, 72px);
  height: auto;
  opacity: 0.95;
  filter: drop-shadow(0 0 8px rgba(0,255,255,0.35));
  z-index: 3;
  pointer-events: none;
}

/* HUD container */
.hud {
  position: absolute;
  left: 50%;
  top: 4%;
  transform: translateX(-50%);
  z-index: 3;
  width: min(900px, 92%);
  background: rgba(0, 0, 0, 0.38);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 14px;
  padding: 14px 16px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.35);
  backdrop-filter: blur(8px);
}

/* ===== HUD Toggle Bar (⚙️ Controls) ===== */
.hud-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
  width: 100%;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 8px 12px;
  margin-bottom: 6px;
  color: #b7eaff;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.2px;
  backdrop-filter: blur(8px);
  transition: background 0.25s ease, color 0.25s ease, transform 0.15s ease;
  box-shadow: 0 4px 18px rgba(0,0,0,0.3);
}

.hud-toggle:hover {
  background: rgba(255,255,255,0.08);
  color: #e7faff;
  transform: translateY(-1px);
}

#toggleIcon {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* ===== HUD Content Collapse Animation ===== */
.hud-content {
  overflow: hidden;
  transition: max-height 0.5s ease, opacity 0.5s ease;
}

.hud-content.collapsed {
  pointer-events: none;
  opacity: 0;
  max-height: 0 !important;
}

/* HUD titles */
.hud h2 {
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  letter-spacing: 0.3px;
  margin-bottom: 4px;
}
.subtitle {
  font-size: clamp(0.78rem, 1.2vw, 0.9rem);
  color: #a8d7ff;
  opacity: 0.95;
  margin-bottom: 10px;
}

/* Controls layout */
.controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(260px, 1fr));
  gap: 10px 12px;
  margin-bottom: 12px;
}

fieldset {
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 10px;
  background: rgba(255,255,255,0.04);
}
legend {
  padding: 0 6px;
  color: #dff4ff;
  font-size: 0.9rem;
  opacity: 0.95;
}

label {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 6px 10px;
  font-size: 0.9rem;
  padding: 8px 10px;
  margin: 6px 0;
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
}
label.checkbox { grid-template-columns: auto 1fr; }

.readonly {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 6px 10px;
  font-size: 0.9rem;
  padding: 8px 10px;
  margin: 6px 0;
  border-radius: 10px;
  background: rgba(0,0,0,0.28);
  border: 1px solid rgba(255,255,255,0.08);
}
.readonly strong { color: #baf1ff; }

/* Sliders */
input[type="range"] {
  grid-column: 1 / -1;
  width: 100%;
  height: 8px;
  appearance: none;
  background: rgba(255,255,255,0.28);
  border-radius: 999px;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #eaf7ff;
  border: 1px solid rgba(0,0,0,0.25);
  box-shadow: 0 1px 4px rgba(0,0,0,0.35);
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #eaf7ff;
  border: 1px solid rgba(0,0,0,0.25);
  box-shadow: 0 1px 4px rgba(0,0,0,0.35);
}

/* Buttons */
.buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}
button {
  appearance: none;
  border: 1px solid rgba(255,255,255,0.12);
  padding: 10px 14px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255,255,255,0.18), rgba(255,255,255,0.08));
  color: #eaf7ff;
  font-weight: 650;
  letter-spacing: .2px;
  cursor: pointer;
  transition: transform .08s ease, background .25s ease, box-shadow .2s ease;
  backdrop-filter: blur(6px);
  box-shadow: 0 2px 10px rgba(0,0,0,0.25), inset 0 0 0 1px rgba(255,255,255,0.1);
}
button:hover { transform: translateY(-1px) scale(1.02); }
button:active { transform: translateY(0) scale(0.98); }

/* Footer */
footer {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: min(900px, 92%);
  text-align: center;
  font-size: 0.86rem;
  color: #9fd4ff;
  background: rgba(0,0,0,0.28);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 10px 12px;
  z-index: 2;
  box-shadow: 0 6px 18px rgba(0,0,0,0.28);
}

/* Responsive */
@media (max-width: 860px) {
  .controls { grid-template-columns: 1fr; }
  .hud { width: 96%; top: 3.5%; }
  footer { width: 96%; }
}
@media (max-width: 420px) {
  .sim-container.pool-theme { width: 96vw; height: 92vh; border-radius: 18px; }
  #pool { border-radius: 18px; }
  .hud { padding: 10px 12px; border-radius: 12px; }
  label, .readonly { font-size: 0.85rem; padding: 8px 10px; }
  button { padding: 9px 12px; }
  .hud-toggle {
    font-size: 0.85rem;
    padding: 6px 9px;
    border-radius: 8px;
  }
}

/* Optional visual indicator for neutral line */
.neutral-line {
  position: absolute;
  left: 12px; right: 12px;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(180,255,220,0.8), transparent);
  filter: drop-shadow(0 0 6px rgba(150,255,230,0.6));
  border-radius: 2px;
  pointer-events: none;
  z-index: 2;
}