/* Stormwind Trebuchet — MiniMax M3 build
 * Restrained siege-engineering HUD: parchment + iron + Stormwind blue/gold.
 */

:root {
  --parchment: #f3e6c4;
  --parchment-translucent: rgba(243, 230, 196, 0.92);
  --parchment-edge: #6b4a22;
  --ink: #2c1f12;
  --accent-blue: #2a4d8f;
  --accent-gold: #d6a93e;
  --accent-warm: #d6502c;
  --accent-iron: #3a342c;
  --shadow: rgba(0, 0, 0, 0.45);
  --shadow-soft: rgba(0, 0, 0, 0.18);
  --panel-radius: 4px;
  --font-stack: "Iowan Old Style", "Palatino Linotype", "Cambria", Georgia, serif;
  --mono-stack: "SF Mono", "Menlo", "Consolas", monospace;
}

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

html,
body {
  height: 100%;
  width: 100%;
  overflow: hidden;
  background: #0a0c10;
  color: var(--ink);
  font-family: var(--font-stack);
  -webkit-font-smoothing: antialiased;
}

#stage {
  position: fixed;
  inset: 0;
}

#stage canvas {
  display: block;
  width: 100%;
  height: 100%;
  outline: none;
}

/* HUD layout */
.hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  font-size: 12px;
  line-height: 1.45;
}

.hud > * {
  pointer-events: auto;
}

.panel {
  background: var(--parchment-translucent);
  border: 1px solid var(--parchment-edge);
  border-radius: var(--panel-radius);
  padding: 10px 12px;
  box-shadow: 0 6px 18px var(--shadow);
  color: var(--ink);
  backdrop-filter: blur(2px);
}

.panel h3 {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-blue);
  border-bottom: 1px solid rgba(107, 74, 34, 0.3);
  padding-bottom: 4px;
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.panel h3 .flag {
  color: var(--accent-gold);
  font-weight: 600;
  letter-spacing: 0.06em;
}

.panel .row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px;
  align-items: baseline;
  padding: 1px 0;
}

.panel .row .label {
  color: var(--accent-iron);
  font-weight: 500;
}

.panel .row .value {
  font-family: var(--mono-stack);
  font-size: 12px;
  font-weight: 600;
  color: var(--ink);
  text-align: right;
}

.panel .row .value.warn {
  color: var(--accent-warm);
}

.panel .row .phase {
  display: inline-block;
  padding: 1px 6px;
  background: var(--accent-blue);
  color: var(--parchment);
  border-radius: 2px;
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.panel .row .phase.flight {
  background: var(--accent-gold);
  color: var(--ink);
}

.panel .row .phase.impact {
  background: var(--accent-warm);
  color: var(--parchment);
}

.panel .row .phase.loaded {
  background: var(--accent-iron);
  color: var(--parchment);
}

/* Panel positions */
.tl {
  position: absolute;
  top: 12px;
  left: 12px;
  width: 280px;
}

.tr {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 270px;
}

.bl {
  position: absolute;
  bottom: 12px;
  left: 12px;
  width: 290px;
}

.bc {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  align-items: center;
}

.br {
  position: absolute;
  bottom: 12px;
  right: 12px;
  width: 270px;
}

/* Buttons */
button {
  font-family: var(--font-stack);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 8px 18px;
  border: 1px solid var(--parchment-edge);
  border-radius: var(--panel-radius);
  background: var(--parchment);
  color: var(--ink);
  cursor: pointer;
  box-shadow: 0 3px 0 var(--accent-iron);
  transition: transform 60ms ease, box-shadow 60ms ease;
}

button:hover {
  background: var(--accent-gold);
}

button:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 var(--accent-iron);
}

button.primary {
  background: var(--accent-warm);
  color: var(--parchment);
  border-color: #7a2e10;
  font-size: 15px;
  padding: 10px 28px;
  box-shadow: 0 4px 0 #7a2e10;
}

button.primary:hover {
  background: #b94020;
}

button.primary:disabled {
  background: var(--accent-iron);
  border-color: var(--accent-iron);
  box-shadow: 0 2px 0 #1a1612;
  cursor: not-allowed;
  opacity: 0.7;
}

button.ghost {
  background: transparent;
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  box-shadow: none;
}

button.ghost:hover {
  background: var(--accent-blue);
  color: var(--parchment);
}

/* Tuning panel */
.tuning {
  position: absolute;
  top: 50%;
  right: 12px;
  transform: translateY(-50%);
  width: 320px;
  max-height: 80vh;
  overflow-y: auto;
}

.tuning .ctl {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 8px;
  padding: 6px 0;
  border-bottom: 1px dashed rgba(107, 74, 34, 0.25);
}

.tuning .ctl:last-child {
  border-bottom: none;
}

.tuning .ctl label {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-iron);
  align-self: center;
}

.tuning .ctl .val {
  font-family: var(--mono-stack);
  font-size: 11px;
  text-align: right;
  font-weight: 600;
  color: var(--ink);
}

.tuning .ctl input[type="range"] {
  grid-column: 1 / -1;
  width: 100%;
  accent-color: var(--accent-warm);
  cursor: pointer;
}

.tuning .advanced {
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid rgba(107, 74, 34, 0.3);
}

.tuning .advanced summary {
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-blue);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.tuning .advanced summary::-webkit-details-marker {
  display: none;
}

.tuning .advanced summary::before {
  content: "+ ";
  color: var(--accent-gold);
}

.tuning .advanced[open] summary::before {
  content: "− ";
}

/* Hints */
.hint {
  position: absolute;
  bottom: 78px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  color: var(--parchment);
  background: rgba(20, 16, 10, 0.55);
  padding: 5px 12px;
  border-radius: 999px;
  letter-spacing: 0.05em;
  pointer-events: none;
  text-shadow: 0 1px 2px black;
}

.hint kbd {
  display: inline-block;
  font-family: var(--mono-stack);
  font-size: 10px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 1px 5px;
  border-radius: 3px;
  margin: 0 2px;
}

/* Banner at top */
.banner {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--parchment);
  background: rgba(20, 16, 10, 0.55);
  padding: 5px 14px;
  border-radius: 2px;
  pointer-events: none;
  text-shadow: 0 1px 2px black;
}

.banner .gold {
  color: var(--accent-gold);
}

.banner .blue {
  color: #6fa3ff;
}

/* Damage strip */
.damage {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  display: none;
}

.damage.visible {
  display: block;
}

.damage .bar {
  width: 8px;
  height: 180px;
  background: rgba(243, 230, 196, 0.15);
  border: 1px solid var(--parchment-edge);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}

.damage .fill {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, var(--accent-warm), var(--accent-gold));
  height: 0%;
  transition: height 200ms ease;
}

.damage .label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--parchment);
  text-align: center;
  margin-top: 4px;
  text-shadow: 0 1px 2px black;
}

/* Mobile responsiveness */
@media (max-width: 760px) {
  .tl,
  .tr,
  .bl,
  .br {
    width: calc(50% - 18px);
    font-size: 11px;
  }
  .tuning {
    width: 280px;
    right: 8px;
    max-height: 60vh;
  }
  .tuning .ctl {
    padding: 4px 0;
  }
  .banner {
    font-size: 11px;
  }
  .hint {
    font-size: 10px;
    bottom: 60px;
  }
}

@media (max-width: 480px) {
  .tl,
  .tr,
  .bl,
  .br {
    width: calc(100% - 24px);
    font-size: 10px;
  }
  .tr {
    top: auto;
    bottom: 70px;
    right: 12px;
    left: 12px;
    width: auto;
  }
  .bl {
    display: none;
  }
  .tuning {
    width: calc(100% - 16px);
    right: 8px;
    left: 8px;
    top: 60px;
    transform: none;
    max-height: 50vh;
  }
}

/* Loading */
#loading {
  position: fixed;
  inset: 0;
  background: #0a0c10;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--parchment);
  font-size: 14px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  z-index: 100;
  transition: opacity 400ms ease;
}

#loading.hide {
  opacity: 0;
  pointer-events: none;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0ms !important;
    transition-duration: 0ms !important;
  }
}