:root {
  --bg: #0f172a;
  --panel: #111827;
  --panel-2: #1f2937;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #22d3ee;
  --danger: #ef4444;
  --success: #10b981;
  --warning: #f59e0b;
  --focus: #a78bfa;
  --monster: #7c2d12;
  --weapon: #1e3a8a;
  --potion: #14532d;
  --card-border: rgba(255, 255, 255, 0.08);
  --card-max-height: 22rem;
  --card-width: calc(var(--card-max-height) * 0.75);
  --room-gap: 0.55rem;
  --shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    sans-serif;
  background: radial-gradient(circle at top, #1e293b 0%, var(--bg) 55%);
  color: var(--text);
}

button {
  font: inherit;
}

.app {
  width: min(1100px, 100% - 2rem);
  margin: 1rem auto 2rem;
  display: grid;
  gap: 1rem;
}

.hud,
.controls,
.room-panel,
.log-panel,
.debug-panel {
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.hud {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  padding: 0.85rem;
}

.score-banner {
  grid-column: 1 / -1;
  text-align: center;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 0.6rem 1rem;
  border-radius: 10px;
  border: 1px solid transparent;
}

.score-banner--victory {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.4);
  color: var(--success);
}

.score-banner--defeat {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.35);
  color: var(--danger);
}

.hud__item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 0.75rem;
}

.hud h2 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.hud p {
  margin: 0.2rem 0;
}

.health-meter {
  position: relative;
  height: 1.4rem;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
}

.health-meter__fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(
    90deg,
    var(--danger),
    var(--warning),
    var(--success)
  );
  transition: width 220ms ease;
}

.health-meter__label {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  font-weight: 700;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  padding: 0.75rem;
  align-items: center;
}

.controls button,
.modal-content button,
.log-panel .ghost {
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border-radius: 10px;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  transition:
    transform 150ms ease,
    background 150ms ease,
    border-color 150ms ease;
}

.controls button:hover,
.modal-content button:hover,
.log-panel .ghost:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.12);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.avoid-btn--pulse {
  animation: avoidPulse 650ms ease-out;
}

@keyframes avoidPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.52);
    border-color: rgba(245, 158, 11, 0.9);
  }

  100% {
    box-shadow: 0 0 0 14px rgba(245, 158, 11, 0);
    border-color: rgba(255, 255, 255, 0.15);
  }
}

button:focus-visible,
.room-card:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.room-panel {
  padding: 1rem;
  width: fit-content;
  max-width: 100%;
  justify-self: start;
}

.room-panel__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.room-panel__header h1 {
  margin: 0;
  font-size: 1.25rem;
}

.room-panel__hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ── Mobile default: 2-column grid, landscape (4:3) cards ── */
.room-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, var(--card-width)));
  width: min(100%, calc((var(--card-width) * 2) + var(--room-gap)));
  gap: var(--room-gap);
  margin-left: 0;
  margin-right: auto;
}

.room-card {
  -webkit-appearance: none;
  appearance: none;
  border: 1px solid var(--card-border);
  width: 100%;
  max-width: 100%;
  justify-self: stretch;
  aspect-ratio: 3 / 4;
  max-height: var(--card-max-height);
  border-radius: 14px;
  color: white;
  padding: 0;
  text-align: left;
  position: relative;
  overflow: hidden;
  container-type: inline-size;
  background-color: #0f172a;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    filter 180ms ease;
  transform-style: preserve-3d;
}

.room-card--with-art {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.room-card--with-art::before,
.room-card--with-art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.room-card--with-art::before {
  background: linear-gradient(
    170deg,
    rgba(255, 255, 255, 0.18) 0%,
    rgba(255, 255, 255, 0.06) 30%,
    rgba(0, 0, 0, 0.18) 100%
  );
}

.room-card--with-art.room-card--monster::after {
  background: rgba(127, 29, 29, 0.18);
}

.room-card--with-art.room-card--weapon::after {
  background: rgba(30, 58, 138, 0.16);
}

.room-card--with-art.room-card--potion::after {
  background: rgba(22, 101, 52, 0.16);
}

.room-card:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
}

.room-card--animating {
  pointer-events: none;
}

.room-card--deck-back::before,
.room-card--deck-back::after {
  display: none;
}

.room-card--deck-back .room-card__value,
.room-card--deck-back .room-card__type,
.room-card--deck-back .room-card__description {
  opacity: 0;
}

.room-card__value {
  position: absolute;
  z-index: 1;
  font-size: clamp(0.7rem, 10cqi, 1.45rem);
  font-weight: 800;
  line-height: 1;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.75);
}

.room-card__value--top-left {
  top: clamp(0.34rem, 3.4cqi, 0.55rem);
  left: clamp(0.34rem, 3.6cqi, 0.55rem);
}

.room-card__type {
  position: absolute;
  z-index: 1;
  top: clamp(0.34rem, 3.6cqi, 0.55rem);
  right: clamp(0.34rem, 3.6cqi, 0.55rem);
  font-size: clamp(0.52rem, 5.4cqi, 0.95rem);
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.75);
}

.room-card__description {
  position: absolute;
  z-index: 1;
  left: clamp(0.34rem, 3.6cqi, 0.55rem);
  right: clamp(0.34rem, 3.6cqi, 0.55rem);
  bottom: clamp(0.34rem, 3.6cqi, 0.55rem);
  font-size: clamp(0.45rem, 4.7cqi, 0.8rem);
  line-height: 1.2;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.75);
}

.room-card.revealing {
  animation: flipIn 260ms ease;
}

@keyframes flipIn {
  from {
    transform: perspective(800px) rotateY(35deg) scale(0.98);
    opacity: 0;
  }

  to {
    transform: perspective(800px) rotateY(0deg) scale(1);
    opacity: 1;
  }
}

.log-panel {
  padding: 0.8rem;
}

.log-panel__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.55rem;
}

.log-panel h2 {
  margin: 0;
  font-size: 1rem;
}

.log-list {
  margin: 0;
  padding: 0;
  list-style: none;
  max-height: 220px;
  overflow: auto;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.15);
}

.log-list li {
  padding: 0.55rem 0.65rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.9rem;
}

.log-list li:last-child {
  border-bottom: 0;
}

.log-list__turn {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
}

.log-list__entry {
  padding-left: 0.9rem;
}

.debug-panel {
  padding: 0.8rem;
}

.debug-panel h2 {
  margin-top: 0;
  font-size: 1rem;
}

.debug-panel pre {
  margin: 0.55rem 0 0;
  white-space: pre-wrap;
  color: #bfdbfe;
}

.hidden {
  display: none;
}

.muted {
  color: var(--muted);
}

dialog {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  color: var(--text);
  width: min(720px, 100% - 2rem);
}

dialog::backdrop {
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(2px);
}

.modal-content {
  padding: 1rem;
}

.modal-content h2 {
  margin-top: 0;
}

.modal-content ul {
  line-height: 1.55;
}

/* ── End modal: killer card ── */
.end-killer-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.end-killer-label {
  margin: 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.7;
}

.end-killer-card {
  position: relative;
  width: var(--card-width);
  height: var(--card-height);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column;
  padding: 0.35rem 0.5rem;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.5);
  pointer-events: none;
}

/* ── End modal: score summary ── */
.end-summary {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.3rem 1.25rem;
  margin: 0 0 1.25rem;
  font-size: 0.95rem;
}

.end-summary dt {
  font-weight: 600;
  opacity: 0.75;
}

.end-summary dd {
  margin: 0;
  font-weight: 700;
}

@media (max-width: 900px) {
  .hud {
    grid-template-columns: 1fr;
  }

  main {
    grid-template-columns: 1fr;
  }
}

/* ── 560px+: stay 2 columns ── */
@media (min-width: 560px) {
  .room-grid {
    grid-template-columns: repeat(2, minmax(0, var(--card-width)));
    width: min(100%, calc((var(--card-width) * 2) + var(--room-gap)));
  }
}

@media (min-width: 1120px) {
  .room-grid {
    grid-template-columns: repeat(4, minmax(0, var(--card-width)));
    width: min(100%, calc((var(--card-width) * 4) + (var(--room-gap) * 3)));
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}