:root {
  --ink: #07080b;
  --ink-2: #10131a;
  --panel: #161b24;
  --line: rgba(200, 176, 132, 0.18);
  --brass: #c4a36a;
  --brass-2: #8a7044;
  --phosphor: #7ee0c8;
  --phosphor-dim: #2a6b5e;
  --blood: #d4545c;
  --paper: #ece6d6;
  --paper-ink: #1b1a16;
  --muted: #8d8a80;
  --text: #efece3;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --font-display: "Fraunces", "Times New Roman", serif;
  --font-ui: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 700px at 50% -10%, #1a211c 0%, transparent 55%),
    var(--ink);
  color: var(--text);
  font-family: var(--font-ui);
  letter-spacing: 0.01em;
}

body {
  min-height: 100vh;
}

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: 12px;
  top: 12px;
  z-index: 20;
  background: var(--paper);
  color: var(--paper-ink);
  padding: 8px 12px;
}

.banner {
  display: block;
  text-align: center;
  padding: 10px 16px;
  background: #1c1710;
  color: var(--brass);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--line);
}

.banner:hover,
.banner:focus-visible {
  color: var(--paper);
  background: #2a2318;
  outline: none;
}

.app {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 64px;
}

.lobby-lead {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 1.05rem;
}

.lobby-why {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
  max-width: 42rem;
}

.about {
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.65;
  max-width: 42rem;
}

.about-lead {
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 560;
  line-height: 1.35;
  margin: 0 0 22px;
}

.about a {
  color: var(--brass);
}

.modes {
  display: grid;
  gap: 12px;
}

.mode {
  appearance: none;
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(28, 34, 44, 0.95), rgba(14, 17, 23, 0.95));
  color: var(--text);
  padding: 18px 18px 16px;
  cursor: pointer;
  font-family: inherit;
}

.mode:hover,
.mode:focus-visible {
  border-color: var(--brass);
  outline: none;
}

.mode h2 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 560;
}

.mode p {
  margin: 0 0 12px;
  color: var(--muted);
}

.mode-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brass);
}

.mode-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.mode-actions button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 10px;
  cursor: pointer;
}

.mode-actions button:hover,
.mode-actions button:focus-visible {
  border-color: var(--brass);
  color: var(--brass);
  outline: none;
}

.lobby-foot {
  margin: 22px 0 0;
}

.lobby-foot button,
.lobby-foot a {
  background: none;
  border: 0;
  color: var(--brass);
  font: inherit;
  cursor: pointer;
  text-decoration: none;
}

.board[hidden],
.lobby[hidden] {
  display: none;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 22px;
}

.mark {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mark em {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 360;
  font-size: 0.92rem;
  color: var(--brass);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.mark h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 560;
  font-size: clamp(2.1rem, 6vw, 3.3rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
}

.mark h1 span {
  display: block;
  font-size: 0.34em;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 10px;
}

.stats {
  display: flex;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.stat {
  min-width: 72px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  background: rgba(16, 19, 26, 0.8);
  text-align: right;
}

.stat b {
  display: block;
  color: var(--text);
  font-size: 1.15rem;
  letter-spacing: 0;
}

.case {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.case strong {
  color: var(--brass);
  font-weight: 500;
}

.tray {
  display: flex;
  justify-content: center;
  gap: 8px;
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}

.box {
  width: 38px;
  height: 38px;
  border: 2px solid var(--line);
  background: #0c0f14;
  padding: 0;
  cursor: pointer;
}

.box.is-right {
  background: #2a6b5c;
  border-color: var(--phosphor);
}

.box.is-wrong {
  background: #7a3036;
  border-color: var(--blood);
}

.box.is-current {
  box-shadow: 0 0 0 2px var(--brass);
}

.summary {
  display: none;
  margin-top: 22px;
  padding: 22px 20px;
  background: var(--paper);
  color: var(--paper-ink);
  text-align: center;
  box-shadow: var(--shadow);
}

.summary.is-open {
  display: block;
}

.summary h2 {
  font-family: var(--font-display);
  margin: 0 0 8px;
}

.share-grid {
  margin: 8px 0 4px;
  font-size: 1.7rem;
  letter-spacing: 0.18em;
}

.summary-score {
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #6d685c;
}

.stage {
  position: relative;
  display: grid;
  place-items: center;
  margin: 8px auto 20px;
}

.ocular {
  --size: min(78vw, 520px);
  width: var(--size);
  height: var(--size);
  border-radius: 50%;
  position: relative;
  isolation: isolate;
  box-shadow:
    0 0 0 14px #1c1710,
    0 0 0 16px var(--brass-2),
    0 0 0 22px #3a2f1d,
    0 0 0 24px var(--brass),
    var(--shadow);
  background: #050607;
  overflow: hidden;
}

.ocular::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  pointer-events: none;
  background:
    radial-gradient(circle at 32% 28%, rgba(255, 255, 255, 0.14), transparent 22%),
    radial-gradient(circle at 50% 50%, transparent 46%, rgba(0, 0, 0, 0.72) 78%, #000 100%);
  z-index: 2;
}

.reticle {
  position: absolute;
  inset: 18%;
  border: 1px solid rgba(126, 224, 200, 0.12);
  border-radius: 50%;
  pointer-events: none;
  z-index: 3;
}

.reticle::before,
.reticle::after {
  content: "";
  position: absolute;
  background: rgba(126, 224, 200, 0.16);
}

.reticle::before {
  left: 50%;
  top: 8%;
  bottom: 8%;
  width: 1px;
  transform: translateX(-50%);
}

.reticle::after {
  top: 50%;
  left: 8%;
  right: 8%;
  height: 1px;
  transform: translateY(-50%);
}

.ocular img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.05);
  animation: focus-in 900ms ease both;
}

.ocular.is-loading img {
  filter: blur(10px) saturate(0.7);
}

.ocular.is-examining {
  cursor: none;
}

@keyframes focus-in {
  from {
    filter: blur(12px) saturate(0.5);
    transform: scale(1.12);
  }
  to {
    filter: saturate(0.92) contrast(1.05);
    transform: none;
  }
}

.loupe {
  position: fixed;
  width: 188px;
  height: 188px;
  border-radius: 50%;
  overflow: hidden;
  pointer-events: none;
  z-index: 20;
  transform: translate(-50%, -50%);
  background: #050607;
  box-shadow:
    0 0 0 3px #1c1710,
    0 0 0 5px var(--brass-2),
    0 0 0 8px #3a2f1d,
    0 0 0 10px var(--brass);
}

.loupe[hidden] {
  display: none;
}

.loupe img {
  position: absolute;
  max-width: none;
  filter: saturate(0.96) contrast(1.08);
}

.loupe-glass {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 28%, rgba(255, 255, 255, 0.16), transparent 26%),
    radial-gradient(circle at 50% 50%, transparent 52%, rgba(0, 0, 0, 0.45) 100%);
}

.loupe-mag {
  position: absolute;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--phosphor);
  text-shadow: 0 1px 2px #000;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
  margin: 18px 0 26px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.meta span {
  color: var(--phosphor);
}

.choices {
  display: grid;
  gap: 10px;
}

.choice {
  appearance: none;
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(28, 34, 44, 0.95), rgba(14, 17, 23, 0.95));
  color: var(--text);
  padding: 14px 16px;
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: center;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 1rem;
  transition: border-color 160ms ease, transform 160ms ease, background 160ms ease;
}

.choice:hover:not(:disabled),
.choice:focus-visible {
  border-color: var(--brass);
  transform: translateY(-1px);
  outline: none;
}

.choice:disabled {
  cursor: default;
}

.choice .key {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--brass);
}

.choice.is-right {
  border-color: var(--phosphor);
  background: rgba(20, 56, 48, 0.7);
}

.choice.is-wrong {
  border-color: var(--blood);
  background: rgba(68, 22, 26, 0.55);
}

.choice.is-missed {
  border-color: var(--phosphor-dim);
}

.reveal {
  display: none;
  margin-top: 22px;
  padding: 20px 20px 18px;
  background: var(--paper);
  color: var(--paper-ink);
  box-shadow: var(--shadow);
}

.reveal.is-open {
  display: block;
}

.reveal .verdict {
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin: 0 0 8px;
}

.reveal .verdict.bad {
  color: #9c2d34;
}

.reveal .verdict.good {
  color: #1d5c4d;
}

.reveal p {
  margin: 0 0 12px;
  line-height: 1.55;
}

.reveal .credit {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #6d685c;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.reveal a {
  color: #3d4f3f;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.btn {
  border: 1px solid #c9c0aa;
  background: transparent;
  color: var(--paper-ink);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 12px;
  cursor: pointer;
}

.btn:hover,
.btn:focus-visible {
  background: #1b1a16;
  color: var(--paper);
  outline: none;
}

.foot {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 28px;
  color: var(--muted);
  font-size: 0.85rem;
}

.foot button,
.foot a {
  background: none;
  border: 0;
  color: var(--brass);
  font: inherit;
  cursor: pointer;
  text-decoration: none;
}

.modal,
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(5, 6, 8, 0.78);
  display: none;
  place-items: center;
  padding: 24px;
  z-index: 10;
}

.modal.is-open,
.lightbox.is-open {
  display: grid;
}

.sheet {
  width: min(520px, 100%);
  background: var(--paper);
  color: var(--paper-ink);
  padding: 24px;
}

.sheet h2 {
  font-family: var(--font-display);
  margin: 0 0 10px;
}

.sheet p,
.sheet li {
  line-height: 1.5;
}

.lightbox img {
  max-width: min(92vw, 920px);
  max-height: 86vh;
  object-fit: contain;
  box-shadow: var(--shadow);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  background: var(--paper);
  color: var(--paper-ink);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: none;
}

.toast.is-on {
  display: block;
}

@media (max-width: 640px) {
  .top {
    flex-direction: column;
  }

  .stats {
    width: 100%;
    justify-content: flex-end;
  }

  .case {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ocular img {
    animation: none;
  }
}