/* ============================================================
   SCORCHED EARTH — DOS/VGA aesthetic
   Palette: the original's purple bevel dialogs + hot EGA accents
   ============================================================ */

:root {
  --vga-purple:      #a05cc8;
  --vga-purple-dk:   #5c2d7a;
  --vga-purple-lt:   #d49af0;
  --vga-bg:          #08060e;
  --vga-panel:       #2a1140;
  --ega-cyan:        #55ffff;
  --ega-yellow:      #ffff55;
  --ega-red:         #ff5555;
  --ega-green:       #55ff55;
  --ega-white:       #ffffff;
  --ega-orange:      #ff8800;
  --p1-color:        #ff5555;
  --p2-color:        #55ffff;
  --font-pixel: 'Press Start 2P', monospace;
  --font-term:  'VT323', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; user-select: none; }

html, body {
  height: 100%;
  background: var(--vga-bg);
  overflow: hidden;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-term);
  color: var(--ega-white);
  /* subtle phosphor glow ambience */
  background:
    radial-gradient(ellipse at 50% 40%, #160b24 0%, var(--vga-bg) 70%);
}

#frame {
  width: min(96vw, calc((94vh - 140px) * 16 / 9));
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* ============================== HUD ============================== */

#hud {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 8px;
  background: linear-gradient(180deg, var(--vga-purple) 0%, var(--vga-purple-dk) 100%);
  border: 3px solid;
  border-color: var(--vga-purple-lt) var(--vga-purple-dk) var(--vga-purple-dk) var(--vga-purple-lt);
  padding: 6px 10px;
  font-size: clamp(14px, 1.8vw, 22px);
}
#hud.hidden { display: none; }

.hud-tank {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 1;
}
#hud-p2 { justify-content: flex-end; }
.hud-name { font-family: var(--font-pixel); font-size: 0.55em; letter-spacing: 1px; white-space: nowrap; }
#hud-p1 .hud-name { color: var(--p1-color); text-shadow: 0 0 6px var(--p1-color); }
#hud-p2 .hud-name { color: var(--p2-color); text-shadow: 0 0 6px var(--p2-color); }
.hud-cash { color: var(--ega-green); font-size: 0.9em; white-space: nowrap; }

.hpbar {
  width: clamp(50px, 8vw, 110px);
  height: 14px;
  background: #1a0a28;
  border: 2px solid;
  border-color: var(--vga-purple-dk) var(--vga-purple-lt) var(--vga-purple-lt) var(--vga-purple-dk);
  position: relative;
}
.hpfill {
  height: 100%;
  width: 100%;
  background: linear-gradient(180deg, var(--ega-green), #1faa1f);
  transition: width .4s steps(8);
}
.hpfill.hurt { background: linear-gradient(180deg, var(--ega-yellow), #aa7700); }
.hpfill.crit { background: linear-gradient(180deg, var(--ega-red), #aa1111); }

.hud-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  order: 3;
  flex-basis: 100%;
}

.hud-group {
  display: flex;
  align-items: center;
  gap: 4px;
  background: #1a0a28;
  border: 2px solid;
  border-color: var(--vga-purple-dk) var(--vga-purple-lt) var(--vga-purple-lt) var(--vga-purple-dk);
  padding: 2px 8px;
}
.hud-label { color: var(--vga-purple-lt); font-size: 0.7em; letter-spacing: 1px; }
.hud-value { color: var(--ega-white); min-width: 2.6em; text-align: center; }
.hud-ammo  { color: var(--ega-yellow); }

.hbtn {
  font-family: var(--font-term);
  font-size: 1em;
  color: var(--ega-white);
  background: linear-gradient(180deg, var(--vga-purple) 0%, var(--vga-purple-dk) 100%);
  border: 2px solid;
  border-color: var(--vga-purple-lt) var(--vga-purple-dk) var(--vga-purple-dk) var(--vga-purple-lt);
  padding: 0 7px;
  cursor: pointer;
  line-height: 1.2;
}
.hbtn:active { border-color: var(--vga-purple-dk) var(--vga-purple-lt) var(--vga-purple-lt) var(--vga-purple-dk); }

.hud-weapon { cursor: pointer; }
.hud-weapon:hover { outline: 2px dashed var(--ega-yellow); }

#btn-fire {
  font-family: var(--font-pixel);
  font-size: 0.75em;
  letter-spacing: 2px;
  color: #fff;
  padding: 8px 18px;
  cursor: pointer;
  background: linear-gradient(180deg, #ff5555, #aa1111);
  border: 3px solid;
  border-color: #ff9999 #660000 #660000 #ff9999;
  text-shadow: 2px 2px 0 #660000;
  animation: firepulse 1.2s steps(2) infinite;
}
#btn-fire:active { border-color: #660000 #ff9999 #ff9999 #660000; }
#btn-fire:disabled { filter: grayscale(1) brightness(.6); animation: none; cursor: default; }
@keyframes firepulse { 50% { box-shadow: 0 0 14px #ff5555; } }

.hud-wind .hud-value { color: var(--ega-cyan); min-width: 5em; letter-spacing: 1px; }

/* ============================== SCREEN ============================== */

#screen {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border: 3px solid;
  border-color: var(--vga-purple-dk) var(--vga-purple-lt) var(--vga-purple-lt) var(--vga-purple-dk);
  overflow: hidden;
}

#game {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* CRT scanlines + vignette */
#crt {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(0deg,
      rgba(0,0,0,0)    0px,
      rgba(0,0,0,0)    2px,
      rgba(0,0,0,.18)  3px),
    radial-gradient(ellipse at center, rgba(0,0,0,0) 55%, rgba(0,0,0,.35) 100%);
  mix-blend-mode: multiply;
}

/* event banner */
#banner {
  position: absolute;
  top: 12%;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-pixel);
  font-size: clamp(12px, 2.2vw, 26px);
  color: var(--ega-yellow);
  text-shadow: 3px 3px 0 #000, 0 0 18px rgba(255,255,85,.6);
  white-space: nowrap;
  pointer-events: none;
  animation: bannerpop .25s steps(3);
}
#banner.hidden { display: none; }
@keyframes bannerpop { from { transform: translateX(-50%) scale(2); opacity: 0; } }

/* ============================== OVERLAYS / DIALOGS ============================== */

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(8px, 1.5vh, 18px);
  z-index: 5;
}
.overlay.hidden { display: none; }

#title-screen { background: rgba(4, 2, 10, 0.55); }

.title-flames {
  position: absolute;
  inset: auto 0 0 0;
  height: 30%;
  background: linear-gradient(0deg, rgba(255,80,0,.25), transparent);
  pointer-events: none;
}

#logo {
  font-family: var(--font-pixel);
  font-size: clamp(28px, 5.5vw, 64px);
  line-height: 1.05;
  text-align: center;
  color: var(--ega-orange);
  text-shadow:
    0 0 12px rgba(255,136,0,.8),
    4px 4px 0 #5c1500,
    8px 8px 0 #000;
  letter-spacing: 4px;
  animation: logoflicker 4s steps(20) infinite;
}
#logo span {
  display: block;
  color: var(--ega-yellow);
  text-shadow:
    0 0 12px rgba(255,255,85,.8),
    4px 4px 0 #6a5500,
    8px 8px 0 #000;
}
@keyframes logoflicker {
  0%, 93%, 97%, 100% { opacity: 1; }
  95% { opacity: .75; }
}

.tagline {
  font-size: clamp(14px, 2vw, 24px);
  color: var(--ega-cyan);
  letter-spacing: 3px;
  text-shadow: 2px 2px 0 #000;
  animation: blink 1.4s steps(1) infinite;
}
@keyframes blink { 50% { opacity: .25; } }

.dialog {
  background: linear-gradient(180deg, var(--vga-purple) 0%, var(--vga-purple-dk) 130%);
  border: 4px solid;
  border-color: var(--vga-purple-lt) var(--vga-purple-dk) var(--vga-purple-dk) var(--vga-purple-lt);
  box-shadow: 10px 10px 0 rgba(0,0,0,.5);
  padding: clamp(10px, 2vh, 22px) clamp(14px, 2.5vw, 30px);
  display: flex;
  flex-direction: column;
  gap: clamp(6px, 1.2vh, 14px);
}

.dialog-title {
  font-family: var(--font-pixel);
  font-size: clamp(10px, 1.4vw, 16px);
  text-align: center;
  color: var(--ega-yellow);
  text-shadow: 2px 2px 0 #000;
  letter-spacing: 2px;
  border-bottom: 2px solid var(--vga-purple-lt);
  padding-bottom: 8px;
}

.menu-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: clamp(16px, 2vw, 24px);
}
.menu-label { color: var(--vga-purple-lt); letter-spacing: 2px; min-width: 5.5em; }

.choice { display: flex; gap: 4px; }
.choice button {
  font-family: var(--font-term);
  font-size: clamp(14px, 1.7vw, 21px);
  color: var(--ega-white);
  background: #1a0a28;
  border: 2px solid;
  border-color: var(--vga-purple-dk) var(--vga-purple-lt) var(--vga-purple-lt) var(--vga-purple-dk);
  padding: 2px 12px;
  cursor: pointer;
  letter-spacing: 1px;
}
.choice button.sel {
  background: var(--ega-yellow);
  color: #000;
  border-color: #fff #886600 #886600 #fff;
  text-shadow: none;
}
.choice button:hover:not(.sel) { color: var(--ega-yellow); }

#btn-start, #btn-shop-done, #btn-result-continue {
  font-family: var(--font-pixel);
  font-size: clamp(11px, 1.5vw, 17px);
  color: #000;
  background: linear-gradient(180deg, var(--ega-green), #1faa1f);
  border: 3px solid;
  border-color: #aaffaa #0a5a0a #0a5a0a #aaffaa;
  padding: 10px 22px;
  cursor: pointer;
  margin-top: 6px;
  letter-spacing: 1px;
}
#btn-start:hover, #btn-shop-done:hover, #btn-result-continue:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 16px rgba(85,255,85,.5);
}
#btn-start:active, #btn-shop-done:active, #btn-result-continue:active {
  border-color: #0a5a0a #aaffaa #aaffaa #0a5a0a;
}

.controls-hint {
  position: absolute;
  bottom: 3%;
  font-size: clamp(12px, 1.6vw, 19px);
  color: rgba(212,154,240,.85);
  letter-spacing: 1px;
  text-shadow: 1px 1px 0 #000;
}
.controls-hint b { color: var(--ega-white); }

/* ============================== SHOP ============================== */

#shop-screen { background: rgba(4, 2, 10, 0.7); }

.shop-dialog { width: min(92%, 620px); max-height: 92%; }

.shop-cash {
  font-size: clamp(16px, 2vw, 24px);
  text-align: center;
  color: var(--vga-purple-lt);
  letter-spacing: 2px;
}
#shop-cash { color: var(--ega-green); }

#shop-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}

.shop-item {
  display: grid;
  grid-template-columns: 1.4em 1fr auto auto auto;
  align-items: center;
  gap: 10px;
  background: #1a0a28;
  border: 2px solid;
  border-color: var(--vga-purple-dk) var(--vga-purple-lt) var(--vga-purple-lt) var(--vga-purple-dk);
  padding: 4px 10px;
  font-size: clamp(14px, 1.8vw, 21px);
}
.shop-item .icon  { color: var(--ega-orange); }
.shop-item .name  { letter-spacing: 1px; }
.shop-item .name small { display: block; color: var(--vga-purple-lt); font-size: .72em; }
.shop-item .price { color: var(--ega-green); }
.shop-item .owned { color: var(--ega-yellow); min-width: 3.2em; text-align: right; }
.shop-item .buy {
  font-family: var(--font-term);
  font-size: .95em;
  background: linear-gradient(180deg, var(--vga-purple), var(--vga-purple-dk));
  color: #fff;
  border: 2px solid;
  border-color: var(--vga-purple-lt) var(--vga-purple-dk) var(--vga-purple-dk) var(--vga-purple-lt);
  padding: 1px 10px;
  cursor: pointer;
}
.shop-item .buy:active { border-color: var(--vga-purple-dk) var(--vga-purple-lt) var(--vga-purple-lt) var(--vga-purple-dk); }
.shop-item .buy:disabled { filter: grayscale(1) brightness(.55); cursor: default; }

/* ============================== RESULTS ============================== */

.result-dialog { width: min(92%, 520px); text-align: center; }

#result-body {
  font-size: clamp(16px, 2.2vw, 26px);
  line-height: 1.5;
  letter-spacing: 1px;
}
#result-body .gold { color: var(--ega-yellow); }
#result-body .green { color: var(--ega-green); }
#result-body .p1 { color: var(--p1-color); }
#result-body .p2 { color: var(--p2-color); }
#result-body table { margin: 0 auto; border-collapse: collapse; }
#result-body td { padding: 2px 14px; }

/* ============================== STATUS LINE ============================== */

#statusline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  background: #1a0a28;
  border: 3px solid;
  border-color: var(--vga-purple-dk) var(--vga-purple-lt) var(--vga-purple-lt) var(--vga-purple-dk);
  border-top: none;
  padding: 3px 12px;
  font-size: clamp(13px, 1.6vw, 19px);
  color: var(--vga-purple-lt);
  letter-spacing: 1px;
}
#status-msg { color: var(--ega-white); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#status-sound { cursor: pointer; }
#status-sound.off { color: #777; }