/* Easter snake prototype for tamuz.caltech.edu.
   Trigger: two-second press on a coauthor/author name.
   The player snake follows the mouse pointer.
*/

body.egg-snake-active {
  cursor: crosshair;
}

body.egg-snake-active.egg-snake-gameover-mode {
  cursor: default;
}

.egg-longpress-target {
  outline: 2px solid rgba(204, 0, 0, 0.85);
  outline-offset: 2px;
  background: rgba(255, 60, 60, 0.10);
  border-radius: 3px;
}




.egg-snake-canvas {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 2147483000;
  pointer-events: none;
}

.egg-snake-hud {
  position: fixed;
  right: 18px;
  top: 18px;
  z-index: 2147483001;
  width: 172px;
  min-height: 0;
  padding: 10px 12px 12px;
  border: 1px solid rgba(0, 0, 0, 0.24);
  border-radius: 8px;
  background: rgba(245, 245, 245, 0.95);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  color: #222;
  font-family: Georgia, "Times New Roman", Times, serif;
  font-size: 14px;
  line-height: 1.25;
  text-align: center;
  pointer-events: auto;
}

.egg-snake-hud-title {
  margin-bottom: 7px;
  font-weight: bold;
  font-size: 14px;
  line-height: 1.12;
}

.egg-snake-hud-hint {
  margin-top: 8px;
  color: #555;
  font-size: 11px;
  line-height: 1.2;
}

.egg-snake-length-readout {
  margin: 4px 0 3px;
  font-size: 15px;
}

.egg-snake-best-readout {
  margin: 2px 0 8px;
  color: #444;
  font-size: 13px;
}

.egg-snake-shrink-indicator {
  display: inline-block;
  margin-left: 2px;
  color: #b25532;
  font-weight: bold;
  animation: egg-snake-shrink-pulse 0.7s ease-in-out infinite alternate;
}

@keyframes egg-snake-shrink-pulse {
  from { opacity: 0.45; transform: translateY(-1px); }
  to { opacity: 1; transform: translateY(1px); }
}


.egg-snake-start-tip {
  position: fixed;
  z-index: 2147483002;
  transform: translate(-50%, -100%);
  padding: 6px 9px;
  border-radius: 6px;
  background: rgba(60, 50, 35, 0.94);
  color: #fff6df;
  box-shadow: 0 5px 18px rgba(0, 0, 0, 0.28);
  font: bold 13px Georgia, "Times New Roman", Times, serif;
  pointer-events: none;
  transition: opacity 0.45s ease-out;
}

.egg-snake-start-tip-fade {
  opacity: 0;
}

@media (prefers-reduced-motion: reduce) {
  .egg-snake-start-tip {
    transition: none;
  }
}

.egg-snake-hidden-source {
  opacity: 0 !important;
  pointer-events: none !important;
  transition: opacity 0.18s ease-out;
}

.egg-snake-gameover {
  position: fixed;
  inset: 0;
  z-index: 2147483003;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.18);
  pointer-events: auto;
  cursor: default;
  overscroll-behavior: contain;
}

.egg-snake-gameover-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: min(380px, calc(100vw - 40px));
}

.egg-snake-gameover-card {
  width: 100%;
  padding: 18px 22px;
  border: 1px solid rgba(0, 0, 0, 0.25);
  border-radius: 12px;
  background: rgba(245, 245, 245, 0.96);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.28);
  color: #222;
  font-family: Georgia, "Times New Roman", Times, serif;
  text-align: center;
}

.egg-snake-gameover-title {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 8px;
}

.egg-snake-gameover-reason {
  margin-bottom: 12px;
  color: #5a3333;
}

.egg-snake-gameover-stat {
  margin: 4px 0;
}

.egg-snake-gameover-hint {
  margin-top: 12px;
  color: #555;
  font-size: 13px;
}

.egg-snake-gameover-subtitle {
  margin-top: 0;
  font-weight: bold;
}

.egg-snake-toplengths {
  width: 100%;
  margin: 10px auto 0;
  border-collapse: separate;
  border-spacing: 0;
  table-layout: fixed;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.16);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.egg-snake-toplengths th,
.egg-snake-toplengths td {
  padding: 6px 8px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.10);
  text-align: center;
  vertical-align: middle;
}

.egg-snake-toplengths tbody tr:last-child td {
  border-bottom: 0;
}

.egg-snake-toplengths thead th {
  font-weight: bold;
  color: #333;
  background: rgba(210, 222, 236, 0.62);
  border-bottom: 1px solid rgba(0, 0, 0, 0.18);
}

.egg-snake-toplengths tbody tr:nth-child(even) td {
  background: rgba(245, 245, 245, 0.70);
}

.egg-snake-toplengths td:first-child,
.egg-snake-toplengths th:first-child {
  width: 22%;
}

.egg-snake-toplengths td:nth-child(2),
.egg-snake-toplengths th:nth-child(2) {
  width: 34%;
  font-weight: bold;
}

.egg-snake-toplengths td:nth-child(3),
.egg-snake-toplengths th:nth-child(3) {
  width: 44%;
  color: #555;
}

.egg-snake-leaderboard-card {
  padding-top: 14px;
  padding-bottom: 16px;
  background: rgba(255, 255, 255, 0.96);
}

.egg-snake-gameover-main-card {
  background: rgba(245, 245, 245, 0.97);
}


@media (max-width: 799px), (max-height: 499px), (pointer: coarse) {
  .egg-snake-hud,
  .egg-snake-canvas,
  .egg-snake-gameover {
    display: none !important;
  }
}

.egg-snake-leaderboard-status {
  margin-top: 4px;
  color: #666;
  font-size: 12px;
}

.egg-snake-toplengths th,
.egg-snake-toplengths td {
  font-variant-numeric: tabular-nums;
}

.egg-snake-toplengths th:nth-child(1),
.egg-snake-toplengths td:nth-child(1) { width: 9%; }
.egg-snake-toplengths th:nth-child(2),
.egg-snake-toplengths td:nth-child(2) { width: 15%; font-weight: bold; }
.egg-snake-toplengths th:nth-child(3),
.egg-snake-toplengths td:nth-child(3) { width: 31%; text-align: left; color: #333; }
.egg-snake-toplengths th:nth-child(4),
.egg-snake-toplengths td:nth-child(4) { width: 12%; }
.egg-snake-toplengths th:nth-child(5),
.egg-snake-toplengths td:nth-child(5) { width: 11%; }
.egg-snake-toplengths th:nth-child(6),
.egg-snake-toplengths td:nth-child(6) { width: 22%; color: #555; }

/* v38 leaderboard polish: coauthor competition plus local personal bests. */
.egg-snake-gameover-stack {
  width: min(520px, calc(100vw - 40px));
}

.egg-snake-coauthor-comparison {
  margin: 10px auto 4px;
  padding: 8px 10px;
  border-radius: 9px;
  background: rgba(255, 248, 216, 0.82);
  border: 1px solid rgba(184, 143, 42, 0.22);
  color: #4b3c18;
  font-size: 13px;
  line-height: 1.35;
}

.egg-snake-coauthor-leaderboard th,
.egg-snake-coauthor-leaderboard td,
.egg-snake-personal-leaderboard th,
.egg-snake-personal-leaderboard td {
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.egg-snake-coauthor-leaderboard th:nth-child(1),
.egg-snake-coauthor-leaderboard td:nth-child(1) { width: 10%; }
.egg-snake-coauthor-leaderboard th:nth-child(2),
.egg-snake-coauthor-leaderboard td:nth-child(2) { width: 48%; text-align: left; color: #333; }
.egg-snake-coauthor-leaderboard th:nth-child(3),
.egg-snake-coauthor-leaderboard td:nth-child(3) { width: 18%; font-weight: bold; }
.egg-snake-coauthor-leaderboard th:nth-child(4),
.egg-snake-coauthor-leaderboard td:nth-child(4) { width: 24%; color: #555; }

.egg-snake-personal-leaderboard th:nth-child(1),
.egg-snake-personal-leaderboard td:nth-child(1) { width: 18%; }
.egg-snake-personal-leaderboard th:nth-child(2),
.egg-snake-personal-leaderboard td:nth-child(2) { width: 32%; font-weight: bold; }
.egg-snake-personal-leaderboard th:nth-child(3),
.egg-snake-personal-leaderboard td:nth-child(3) { width: 50%; color: #555; }


/* v39: keep the game-over card usable when the leaderboard grows. */
.egg-snake-gameover {
  align-items: flex-start;
  overflow-y: auto;
  padding-top: min(7vh, 54px);
  padding-bottom: 30px;
}

.egg-snake-gameover-stack {
  width: min(980px, calc(100vw - 40px));
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(430px, 1.18fr);
  grid-auto-rows: auto;
  gap: 14px;
  align-items: start;
}

.egg-snake-gameover-main-card {
  grid-column: 1;
  grid-row: 1;
}

.egg-snake-personal-card {
  grid-column: 1;
  grid-row: 2;
}

.egg-snake-coauthor-card {
  grid-column: 2;
  grid-row: 1 / span 2;
}

.egg-snake-table-scroll {
  margin-top: 8px;
  overflow: auto;
  pointer-events: auto;
  touch-action: pan-y;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.72);
}

.egg-snake-leaderboard-scroll {
  max-height: min(58vh, 520px);
}

.egg-snake-personal-scroll {
  max-height: min(28vh, 230px);
}

.egg-snake-toplengths {
  margin-top: 0;
  border-collapse: separate;
  border-spacing: 0;
}

.egg-snake-toplengths thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #f4efe4;
  border-bottom: 1px solid rgba(0, 0, 0, 0.13);
}

.egg-snake-coauthor-leaderboard th,
.egg-snake-coauthor-leaderboard td,
.egg-snake-personal-leaderboard th,
.egg-snake-personal-leaderboard td {
  text-align: center;
  vertical-align: middle;
}

.egg-snake-coauthor-leaderboard th:nth-child(2),
.egg-snake-coauthor-leaderboard td:nth-child(2) {
  text-align: left;
}

@media (max-width: 900px) {
  .egg-snake-gameover-stack {
    width: min(560px, calc(100vw - 40px));
    display: block;
  }

  .egg-snake-gameover-card + .egg-snake-gameover-card {
    margin-top: 12px;
  }

  .egg-snake-leaderboard-scroll {
    max-height: 38vh;
  }
}


/* v42: leaderboard remains scrollable, without extra visual scrollbar emphasis. */
.egg-snake-leaderboard-status {
  min-height: 16px;
  margin-top: 2px;
  margin-bottom: 4px;
  color: #6b6258;
  font-size: 12px;
  text-align: center;
}

.egg-snake-leaderboard-scroll {
  overflow-y: auto;
  overflow-x: hidden;
}


/* v43: identity line and shareable result text. */
.egg-snake-player-line {
  margin: 8px 0 6px;
  color: #332b1f;
}

.egg-snake-share {
  margin: 12px auto 6px;
  padding: 10px 10px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(0, 0, 0, 0.10);
}

.egg-snake-share-text {
  font-size: 13px;
  line-height: 1.35;
  color: #333;
  margin-bottom: 8px;
}

.egg-snake-share-button {
  appearance: none;
  border: 1px solid rgba(0, 0, 0, 0.22);
  border-radius: 8px;
  padding: 5px 10px;
  background: #f7efe1;
  color: #2d261d;
  cursor: pointer;
  font: 13px Georgia, "Times New Roman", Times, serif;
}

.egg-snake-share-button:hover,
.egg-snake-share-button:focus {
  background: #fff6e8;
  border-color: rgba(0, 0, 0, 0.35);
}

.egg-snake-share-status {
  display: inline-block;
  min-width: 52px;
  margin-left: 7px;
  font-size: 12px;
  color: #555;
}