/* aPond — pond-water UI: wet greens, soft edges, everything slightly organic. */

:root {
  --ink: #eafcf3;
  --dim: #93b7ad;
  --deep: #061618;
  --mid: #0c2a2e;
  --glass: rgba(10, 40, 40, 0.72);
  --edge: rgba(140, 240, 200, 0.22);
  --accent: #4dee6a;
  --accent-2: #35d6ff;
  --warn: #ff5a6a;
  --font: "Trebuchet MS", "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--deep);
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
  touch-action: none;
}

#arena {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.fatal {
  position: fixed;
  inset: auto 0 0 0;
  padding: 14px 18px;
  background: #40121a;
  color: #ffd9de;
  font-size: 14px;
  z-index: 999;
}

/* ── HUD ───────────────────────────────────────────────────────── */

#hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s ease;
  padding: max(10px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right))
           max(10px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
}
body.in-game #hud { opacity: 1; }

.hud-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.readout {
  display: flex;
  align-items: baseline;
  gap: 8px;
  background: var(--glass);
  border: 1px solid var(--edge);
  border-radius: 12px;
  padding: 7px 13px;
  backdrop-filter: blur(7px);
}
.readout.right { pointer-events: auto; }
.readout .label {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
}
.readout .value {
  font-size: 21px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.lives { color: #ff8fb0; font-size: 15px; letter-spacing: 1px; }

/* Upper-right display toggles: 44px letter cells with a lit state dot. */
.display-toggles {
  position: absolute;
  top: 62px;
  right: max(12px, env(safe-area-inset-right));
  display: flex;
  flex-direction: column;
  gap: 6px;
  pointer-events: auto;
}
.dtoggle {
  position: relative;
  width: 44px;
  height: 44px;
  padding: 0;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--glass);
  border: 1px solid var(--edge);
  backdrop-filter: blur(7px);
  cursor: pointer;
}
.dtoggle .abbr {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--dim);
}
.dtoggle .tdot {
  position: absolute;
  right: 6px;
  bottom: 6px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(140, 240, 200, 0.25);
}
.dtoggle[aria-pressed="true"] .abbr { color: var(--ink); }
.dtoggle[aria-pressed="true"] .tdot {
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.banner {
  flex: 1;
  text-align: center;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.05em;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.7);
}
.banner.show { opacity: 1; transform: none; }

.effects {
  position: absolute;
  top: 62px;
  left: 12px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  align-items: flex-start;
}
.chip {
  --c: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  color: var(--c);
  border: 1px solid color-mix(in srgb, var(--c) 55%, transparent);
  background: color-mix(in srgb, var(--c) 14%, rgba(6, 22, 24, 0.8));
}
.chip.cursed {
  color: #ffc2c9;
  border-color: rgba(255, 90, 106, 0.7);
  background: rgba(70, 14, 22, 0.85);
}

.pickup-flash {
  position: absolute;
  left: 50%;
  top: 22%;
  transform: translate(-50%, 10px);
  text-align: center;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.85);
}
.pickup-flash.show { opacity: 1; transform: translate(-50%, 0); }
.pickup-flash strong {
  display: block;
  font-size: 25px;
  letter-spacing: 0.03em;
  color: #d8fff0;
}
.pickup-flash span { font-size: 14px; color: var(--dim); }
.pickup-flash.cursed strong { color: #ffb8c2; }

.tanks {
  position: absolute;
  left: 50%;
  bottom: max(14px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  display: flex;
  gap: 9px;
}
.tank {
  --c: #fff;
  width: 48px;
  text-align: center;
  opacity: 0.95;
  transition: opacity 0.2s ease;
}
.tank.locked { opacity: 0.16; }
.tank-key {
  font-size: 17px;
  font-weight: 800;
  color: var(--c);
  letter-spacing: 0.06em;
  margin-bottom: 3px;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.8);
}
.tank-track {
  height: 42px;
  border-radius: 8px;
  background: rgba(4, 20, 20, 0.8);
  border: 1px solid color-mix(in srgb, var(--c) 40%, transparent);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  position: relative;
}
.tank-fill {
  width: 100%;
  background: linear-gradient(to top, var(--c), color-mix(in srgb, var(--c) 55%, white));
  transition: height 0.08s linear;
}
.tank.engaged .tank-track {
  border-color: var(--c);
  box-shadow: 0 0 14px color-mix(in srgb, var(--c) 65%, transparent);
}
.tank.depleted .tank-track { border-color: rgba(255, 90, 106, 0.75); }
.tank-name {
  font-size: 9px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--dim);
  margin-top: 3px;
}

/* ── screens ───────────────────────────────────────────────────── */

#screens {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: radial-gradient(circle at 50% 42%, rgba(8, 40, 40, 0.72), rgba(3, 12, 13, 0.94));
  backdrop-filter: blur(3px);
  overflow-y: auto;
  z-index: 5;
}
#screens[hidden] { display: none; }

/* The section stretches to the grid area; centre the panel inside it rather
   than relying on the item shrinking to max-content. */
.screen {
  display: grid;
  place-items: center;
  width: 100%;
}
.screen[hidden] { display: none; }

.panel {
  width: min(560px, 100%);
  background: linear-gradient(160deg, rgba(14, 48, 48, 0.94), rgba(6, 24, 26, 0.96));
  border: 1px solid var(--edge);
  border-radius: 22px;
  padding: 30px 32px;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(190, 255, 230, 0.09);
  text-align: center;
}
.panel.wide { width: min(920px, 100%); }

.logo {
  margin: 0 0 4px;
  font-size: 62px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--accent-2);
}
.logo span { color: var(--accent); }
.tagline { margin: 0 0 24px; color: var(--dim); font-size: 15px; }

h2 { margin: 0 0 6px; font-size: 27px; letter-spacing: -0.01em; }
.sub { margin: 0 0 20px; color: var(--dim); font-size: 14px; }

.cta {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 22px 0 4px;
}
button {
  font-family: var(--font);
  font-size: 15px;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: 12px;
  border: 1px solid var(--edge);
  background: rgba(10, 42, 42, 0.85);
  color: var(--ink);
  cursor: pointer;
  transition: transform 0.12s ease, background 0.18s ease, border-color 0.18s ease;
}
button:hover { background: rgba(18, 62, 60, 0.95); border-color: rgba(160, 255, 210, 0.4); }
button:active { transform: translateY(1px); }
button.primary {
  background: linear-gradient(140deg, var(--accent), #23c9a6);
  border-color: transparent;
  color: #042018;
  font-weight: 800;
}
button.primary:hover { filter: brightness(1.08); }

.how { text-align: left; margin-top: 8px; }
.how h2 { font-size: 15px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--dim); margin-bottom: 12px; }
.keys { display: grid; gap: 8px; }
.keys > div { display: flex; align-items: center; gap: 7px; font-size: 13.5px; color: #cfeee2; }
.keys span { color: var(--dim); }
kbd {
  display: inline-block;
  min-width: 24px;
  padding: 3px 7px;
  font: 600 11px var(--font);
  text-align: center;
  color: var(--ink);
  background: rgba(6, 30, 30, 0.9);
  border: 1px solid var(--edge);
  border-bottom-width: 2px;
  border-radius: 6px;
}
.rule {
  margin-top: 16px;
  font-size: 13.5px;
  line-height: 1.6;
  color: #b9ded1;
  background: rgba(6, 30, 30, 0.55);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  padding: 11px 14px;
}
.rule strong { color: var(--accent); }
.rule em { color: var(--accent-2); font-style: normal; font-weight: 700; }

.codex { margin-top: 20px; text-align: left; }
.codex summary {
  cursor: pointer;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  padding: 8px 0;
}
.codex h3 {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin: 16px 0 8px;
}
.codex-grid { display: grid; gap: 6px; }
.codex-row {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  gap: 10px;
  align-items: center;
  font-size: 12.5px;
  background: rgba(6, 28, 28, 0.5);
  border-radius: 8px;
  padding: 7px 10px;
}
.codex-row .dot { width: 8px; height: 8px; border-radius: 50%; justify-self: center; }
.codex-row img { width: 36px; height: 36px; object-fit: contain; }
.codex-row strong { display: block; font-size: 13px; }
.codex-row span { color: var(--dim); font-size: 12px; }
.codex-row em { font-style: normal; color: #ffe9a8; font-variant-numeric: tabular-nums; }
.codex-row.cursed strong { color: #ffb8c2; }

.best-line { margin: 18px 0 0; font-size: 12px; color: var(--dim); letter-spacing: 0.05em; }
.best-line span { color: var(--ink); font-weight: 700; }

/* character picker */
.picker {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
  gap: 10px;
  max-height: min(52vh, 460px);
  overflow-y: auto;
  padding: 4px;
}
.char {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 10px 8px;
  text-align: center;
  background: rgba(6, 28, 28, 0.6);
}
.char canvas { width: 82px; height: 82px; }
.char-name { font-size: 13px; font-weight: 700; }
.char-blurb { font-size: 10.5px; color: var(--dim); line-height: 1.35; }
.char.selected {
  border-color: var(--accent);
  background: rgba(20, 70, 58, 0.85);
  box-shadow: 0 0 0 1px var(--accent), 0 8px 26px rgba(77, 238, 106, 0.16);
}

/* tallies */
.big { font-size: 42px; font-weight: 800; margin: 6px 0 14px; color: var(--accent); }
.tally { list-style: none; padding: 0; margin: 0 auto; max-width: 320px; text-align: left; }
.tally li {
  display: flex;
  justify-content: space-between;
  padding: 7px 2px;
  border-bottom: 1px solid rgba(140, 240, 200, 0.1);
  font-size: 14px;
}
.tally li span { color: var(--dim); }
.tally li em { font-style: normal; font-weight: 700; font-variant-numeric: tabular-nums; }
.tally li.flawless em { color: var(--accent); }
.hint { margin-top: 16px; font-size: 12.5px; color: var(--dim); }

/* ── touch controls ────────────────────────────────────────────── */

#touch-controls { display: none; }
body.touch.in-game #touch-controls {
  display: flex;
  position: fixed;
  inset: auto 0 0 0;
  padding: 0 max(12px, env(safe-area-inset-left)) max(64px, calc(env(safe-area-inset-bottom) + 58px));
  justify-content: space-between;
  align-items: flex-end;
  pointer-events: none;
  z-index: 4;
}
#touch-controls .pad { display: flex; gap: 8px; pointer-events: auto; }
#touch-controls button {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  font-size: 17px;
  padding: 0;
  background: rgba(8, 36, 36, 0.72);
  backdrop-filter: blur(6px);
}
#touch-controls .big-btn { width: 74px; height: 74px; font-size: 12px; font-weight: 800; }
#touch-controls .right-pad { flex-direction: column-reverse; align-items: center; }
#touch-controls .shield-pad {
  position: absolute;
  left: 50%;
  bottom: 100%;
  transform: translateX(-50%);
  margin-bottom: 8px;
  gap: 6px;
}
#touch-controls .shield-pad button {
  width: 42px;
  height: 42px;
  background: color-mix(in srgb, var(--c) 26%, rgba(6, 22, 24, 0.8));
  border-color: var(--c);
}
#touch-controls button.is-pressed { background: rgba(80, 220, 180, 0.4); }

@media (max-width: 620px) {
  .logo { font-size: 46px; }
  .panel { padding: 22px 20px; border-radius: 18px; }
  .tanks { gap: 5px; }
  .tank { width: 40px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 0.01ms !important; }
}