:root {
  --page: #d9d6cc;
  --page-ink: #2d2b26;
  --body: #2b2f38;
  --body-hi: #3a3f4b;
  --body-lo: #1d2027;
  --bezel: #15171c;
  --lcd: #a7b48a;
  --lcd-hi: #b4c196;
  --ink: #1d2616;
  --ghost: rgba(29, 38, 22, 0.09);
  --label: #c9ccd4;
  --accent: #f2c230;
  --claude: #e07a55;
  --battle: #d6453c;
  --power: #3c7bd6;
  --select: #8a8f9c;
  --sheet: #f4f2ea;
  --sheet-ink: #22211d;
  --line: rgba(0, 0, 0, 0.12);
  --pixel: 'Press Start 2P', ui-monospace, monospace;
  --dot: 'VT323', ui-monospace, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --page: #121318;
    --page-ink: #c9c7bf;
    --sheet: #1e2027;
    --sheet-ink: #e6e3da;
    --line: rgba(255, 255, 255, 0.12);
  }
}
:root[data-theme="dark"] {
  --page: #121318;
  --page-ink: #c9c7bf;
  --sheet: #1e2027;
  --sheet-ink: #e6e3da;
  --line: rgba(255, 255, 255, 0.12);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100dvh;
  background: var(--page);
  color: var(--page-ink);
  font: 16px/1.4 system-ui, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
}
button { font: inherit; color: inherit; cursor: pointer; }
button:disabled { cursor: default; }

/* --- Device shell ------------------------------------------------------- */
.device {
  width: 100%;
  max-width: 420px;
  background: linear-gradient(160deg, var(--body-hi), var(--body) 40%, var(--body-lo));
  border-radius: 22px 22px 40px 40px;
  padding: 14px 14px 22px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08) inset, 0 12px 30px rgba(0, 0, 0, 0.35);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.brand { display: flex; align-items: center; justify-content: space-between; padding: 0 4px; }
.logo { font-family: var(--pixel); font-size: 11px; letter-spacing: 1px; color: var(--accent); }
.logo em { font-style: normal; color: var(--claude); }
.mute {
  border: 0; background: var(--body-lo); color: var(--label);
  width: 34px; height: 34px; border-radius: 50%; font-size: 16px;
}
.mute[aria-pressed="true"] { color: #666; text-decoration: line-through; }

/* --- LCD ------------------------------------------------------------------ */
.lcd {
  background: radial-gradient(120% 100% at 30% 20%, var(--lcd-hi), var(--lcd));
  border: 10px solid var(--bezel);
  border-radius: 10px;
  color: var(--ink);
  padding: 8px 10px 6px;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.35);
  font-family: var(--dot);
}
.lcd-top { display: flex; justify-content: space-between; align-items: center; font-size: 20px; line-height: 1; }
.stars i { font-style: normal; color: var(--ghost); margin-right: 2px; }
.stars i.on { color: var(--ink); }
.stars i.spin { color: var(--ink); opacity: .55; }
.mode { letter-spacing: 1px; }
.lcd-players { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 4px 0; }
.player { min-width: 0; }
.tag { font-size: 20px; line-height: 1; display: flex; gap: 2px; align-items: center; }
.turn { color: var(--ghost); }
.player.active .turn { color: var(--ink); animation: blink 0.8s steps(1) infinite; }
.stat { display: flex; align-items: center; gap: 4px; }
.stat label { font-size: 16px; width: 20px; }
.segs { display: inline-flex; gap: 1px; }
.seg { width: 15px; height: 24px; }
.seg rect.on { fill: var(--ink); }
.seg rect.off { fill: var(--ghost); }
.stat:first-of-type .seg { width: 18px; height: 29px; }
.player.flash .stat:first-of-type .segs { animation: blink 0.25s steps(1) 4; }
.extra { font-size: 18px; min-height: 18px; line-height: 1; letter-spacing: 1px; }
.lcd-msg {
  border-top: 2px solid var(--ghost);
  margin-top: 4px; padding-top: 4px;
  font-size: 24px; line-height: 1.05; min-height: 2.1em;
  text-transform: uppercase; letter-spacing: 1px;
}
@keyframes blink { 50% { visibility: hidden; } }

/* --- Info strip (card names, details) -------------------------------------- */
.info {
  color: var(--label); font-size: 13px; min-height: 1.4em; padding: 0 4px;
  display: grid; gap: 2px;
}
.info b { color: #fff; font-weight: 600; }
.info .jp { font-size: 15px; }

/* --- Card slot ----------------------------------------------------------- */
.slot {
  background: var(--body-lo); border-radius: 12px; padding: 10px;
  display: grid; gap: 8px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.5);
}
.slot-label { font-family: var(--pixel); font-size: 9px; color: var(--label); letter-spacing: 2px; }
.slot-row { display: flex; gap: 8px; }
.slot input {
  flex: 1; min-width: 0;
  font-family: var(--dot); font-size: 26px; letter-spacing: 2px;
  background: #0d0f13; color: #e7f0d0; border: 1px solid #000; border-radius: 6px;
  padding: 4px 10px;
}
.slot input:disabled { opacity: .5; }
.slot input::placeholder { color: #59604e; letter-spacing: 0; font-size: 20px; }
.read {
  font-family: var(--pixel); font-size: 11px; border: 0; border-radius: 6px; padding: 0 14px;
  background: var(--accent); color: #2a2208;
}
.scan {
  font-family: var(--pixel); font-size: 11px; border: 0; border-radius: 6px; padding: 0 10px;
  background: var(--body-hi); color: var(--label);
}
.viewfinder { position: relative; background: #000; border-radius: 12px; overflow: hidden; aspect-ratio: 4 / 3; }
.viewfinder video { width: 100%; height: 100%; object-fit: cover; display: block; }
.aim { position: absolute; inset: 30% 10%; border: 2px solid var(--accent); border-radius: 8px; box-shadow: 0 0 0 999px rgba(0, 0, 0, 0.35); }
.slot-row.small button {
  flex: 1; font-size: 13px; padding: 8px 4px; border-radius: 6px; border: 0;
  background: var(--body-hi); color: var(--label);
}
.slot button:disabled { opacity: .4; }

/* --- Context panel ------------------------------------------------------- */
.panel { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; align-content: flex-start; min-height: 104px; }
.panel button {
  flex: 1 1 40%; min-height: 44px; border-radius: 10px; border: 0;
  background: var(--body-hi); color: #fff; font-family: var(--pixel); font-size: 10px; line-height: 1.5;
  padding: 8px; box-shadow: 0 3px 0 var(--body-lo);
}
.panel button:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--body-lo); }
.panel button.primary { background: var(--accent); color: #2a2208; }
.panel button:disabled { opacity: .35; }
.panel button small { display: block; font-family: system-ui, sans-serif; font-size: 11px; opacity: .75; }

/* --- Hardware buttons ---------------------------------------------------- */
.pad { display: grid; grid-template-columns: 0.8fr 1fr 1fr; gap: 14px; align-items: center; padding: 6px 6px 0; }
.btn {
  aspect-ratio: 1; border-radius: 50%; border: 0; position: relative;
  box-shadow: 0 5px 0 rgba(0, 0, 0, 0.45), inset 0 -4px 6px rgba(0, 0, 0, 0.25), inset 0 3px 4px rgba(255, 255, 255, 0.25);
}
.btn span {
  position: absolute; left: 50%; bottom: -22px; transform: translateX(-50%);
  font-family: var(--pixel); font-size: 8px; color: var(--label); letter-spacing: 1px;
}
.btn.battle { background: var(--battle); }
.btn.power { background: var(--power); }
.btn.select { background: var(--select); aspect-ratio: 2 / 1; border-radius: 999px; align-self: center; }
.btn:active:not(:disabled) { transform: translateY(3px); box-shadow: 0 2px 0 rgba(0, 0, 0, 0.45), inset 0 -2px 4px rgba(0, 0, 0, 0.25); }
.btn:disabled { filter: saturate(0.25) brightness(0.7); }
.btn.ready:not(:disabled) { outline: 3px solid var(--accent); outline-offset: 3px; }
.pad { margin-bottom: 18px; }

/* --- Sheets (dialogs) ---------------------------------------------------- */
.sheet {
  width: min(100% - 16px, 480px); max-height: min(86dvh, 720px);
  border: 0; border-radius: 16px; padding: 0 14px 14px;
  background: var(--sheet); color: var(--sheet-ink);
  display: none; flex-direction: column; gap: 8px;
}
.sheet[open] { display: flex; }
.sheet::backdrop { background: rgba(0, 0, 0, 0.55); }
.sheet-head { display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; background: var(--sheet); padding-top: 12px; }
.sheet-head h2 { margin: 0; font: 12px var(--pixel); }
.sheet-head button { border: 0; background: none; font-size: 20px; width: 40px; height: 40px; }
.book-tools { display: grid; gap: 8px; }
.sheet select {
  font-size: 16px; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--sheet); color: inherit; width: 100%;
}
.sheet input[type="search"] {
  font-size: 16px; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line);
  background: transparent; color: inherit;
}
.filters { display: flex; gap: 6px; overflow-x: auto; }
.filters button { border: 1px solid var(--line); background: none; border-radius: 999px; padding: 4px 10px; font-size: 13px; white-space: nowrap; }
.filters button.on { background: var(--sheet-ink); color: var(--sheet); }
.sheet-note { margin: 0; font-size: 12px; opacity: .7; }
.sheet > * { flex-shrink: 0; }
.cards { list-style: none; margin: 0; padding: 0; overflow-y: auto; flex-shrink: 1; min-height: 0; }
.cards li { display: flex; gap: 8px; align-items: center; border-bottom: 1px solid var(--line); padding: 8px 0; }
.cards .pick { flex: 1; min-width: 0; text-align: left; border: 0; background: none; padding: 0; }
.cards .name { display: block; font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cards .name .jp { font-size: 12px; opacity: .65; }
.cards .meta { display: block; font-size: 12px; opacity: .7; font-variant-numeric: tabular-nums; }
.cards .del { border: 1px solid var(--line); background: none; border-radius: 8px; padding: 6px 10px; font-size: 13px; }
.cards .empty { opacity: .6; justify-content: center; }

.credits { max-width: 420px; text-align: center; font-size: 12px; opacity: .7; margin-top: 14px; }
.credits a { color: inherit; }

@media (max-width: 360px) {
  .seg { width: 12px; height: 20px; }
  .stat:first-of-type .seg { width: 14px; height: 23px; }
  .lcd { border-width: 7px; padding: 6px 7px 4px; }
}
@media (prefers-reduced-motion: reduce) {
  .player.active .turn, .player.flash .stat:first-of-type .segs { animation: none; }
}