/* ── CSS custom properties ─────────────────────────────────────────── */
:root {
  --tile-sz:  150px;
  --clock-w:  160px;
  --clock-h:  312px;
}

/* ── Reset & base ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #eef2f7;
  color: #2d3748;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Header ────────────────────────────────────────────────────────── */
#app-header {
  background: #4a2f1c;
  color: #fff;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-shrink: 0;
}

#app-header h1 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

#btn-back {
  display: inline-flex;
  align-items: center;
  padding: 5px 13px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 7px;
  color: #fff;
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s;
  flex-shrink: 0;
}
#btn-back:hover { background: rgba(255,255,255,0.28); }

/* Timer */
#timer-section {
  display: flex;
  align-items: center;
  gap: 8px;
}

#timer-display {
  font-family: 'Courier New', monospace;
  font-size: 1.55rem;
  font-weight: 700;
  background: rgba(0,0,0,0.35);
  color: #fff;
  padding: 3px 12px;
  border-radius: 6px;
  min-width: 76px;
  text-align: center;
  letter-spacing: 0.05em;
}

.btn-timer {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.15s;
  min-width: 70px;
  text-align: center;
}
.btn-timer:hover { background: rgba(255,255,255,0.28); }

/* ── Settings bar ──────────────────────────────────────────────────── */
#settings-bar {
  background: #fff;
  border-bottom: 2px solid #e6dccb;
  padding: 8px 20px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  flex-shrink: 0;
}

.setting-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.setting-group > label:first-child {
  font-size: 0.82rem;
  font-weight: 600;
  color: #4a5568;
  white-space: nowrap;
}

.setting-group select,
.setting-group input[type="number"] {
  padding: 5px 8px;
  border: 1px solid #cbd5e0;
  border-radius: 6px;
  font-size: 0.88rem;
  background: #f8fafc;
  color: #2d3748;
  outline-color: #b07a3a;
}

.setting-group input[type="number"] { width: 58px; }

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: #4a5568;
  cursor: pointer;
  white-space: nowrap;
}
.checkbox-label input[type="checkbox"] { cursor: pointer; accent-color: #b07a3a; }

.btn-primary {
  margin-left: auto;
  background: #b5651d;
  color: #fff;
  border: none;
  padding: 8px 24px;
  border-radius: 8px;
  font-size: 0.98rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}
.btn-primary:hover  { background: #97520f; }
.btn-primary:active { transform: scale(0.97); }

/* ── Target picker ─────────────────────────────────────────────────── */
.btn-targets {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid #cbd5e0;
  border-radius: 6px;
  background: #f8fafc;
  color: #2d3748;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}
.btn-targets:hover       { background: #f3ece0; }
.btn-targets.is-open     { background: #f5e9d6; border-color: #b07a3a; }
.btn-targets.is-filtered { border-color: #b5651d; color: #97520f; }
.btn-targets .targets-count {
  font-weight: 500;
  color: #4a5568;
  background: #edf2f7;
  padding: 1px 6px;
  border-radius: 10px;
  font-size: 0.75rem;
}
.btn-targets.is-filtered .targets-count {
  background: #f0dcc0;
  color: #97520f;
}

#target-panel {
  background: #fdfaf4;
  border-bottom: 2px solid #e6dccb;
  padding: 10px 20px;
  max-height: 40vh;
  overflow-y: auto;
}
.target-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}
.target-panel-title {
  font-weight: 700;
  color: #2d3748;
  font-size: 0.9rem;
  text-transform: capitalize;
}
.target-panel-actions {
  display: flex;
  gap: 6px;
}
.target-panel-actions button {
  padding: 4px 10px;
  border: 1px solid #cbd5e0;
  background: #fff;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #2d3748;
  cursor: pointer;
}
.target-panel-actions button:hover { background: #f3ece0; }
.btn-targets-close {
  border: none !important;
  background: transparent !important;
  font-size: 1.2rem !important;
  line-height: 1;
  padding: 2px 8px !important;
}
.target-panel-body {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 6px;
}
.target-panel-empty {
  padding: 12px;
  color: #718096;
  font-style: italic;
}
.target-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px;
  font-size: 0.82rem;
  color: #2d3748;
  cursor: pointer;
  border-radius: 4px;
  background: #fff;
  border: 1px solid #e2e8f0;
}
.target-row:hover { background: #f3ece0; }
.target-row input[type="checkbox"] { cursor: pointer; accent-color: #b07a3a; }
.target-thumb {
  width: 28px;
  height: 28px;
  object-fit: contain;
  flex-shrink: 0;
}
.target-thumb-label {
  display: none;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  font-size: 0.6rem;
  font-weight: 700;
  text-align: center;
  line-height: 28px;
  color: #718096;
  background: #f7fafc;
  border: 1px dashed #cbd5e0;
  border-radius: 4px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.target-thumb-label-visible { display: inline-block; }
.target-row-label { flex: 1 1 auto; }

/* ── Extra settings panel ──────────────────────────────────────────── */
.btn-extra {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid #cbd5e0;
  border-radius: 6px;
  background: #f8fafc;
  color: #2d3748;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}
.btn-extra:hover   { background: #f3ece0; }
.btn-extra.is-open { background: #f5e9d6; border-color: #b07a3a; }

#extra-panel {
  background: #fdfaf4;
  border-bottom: 2px solid #e6dccb;
  padding: 10px 20px;
  max-height: 40vh;
  overflow-y: auto;
}
.extra-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}
.extra-panel-title {
  font-weight: 700;
  color: #2d3748;
  font-size: 0.9rem;
}
.btn-extra-close {
  border: none !important;
  background: transparent !important;
  font-size: 1.2rem;
  line-height: 1;
  padding: 2px 8px;
  cursor: pointer;
}
.extra-panel-body {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px 20px;
  align-items: center;
}
.extra-panel-body .checkbox-label { padding: 4px 0; }
.extra-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* ── Game area ─────────────────────────────────────────────────────── */
#game-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 14px 18px 6px;
  align-items: center;
  min-height: 0;
  background:
    radial-gradient(circle at 50% 12%, #fbf2e2 0%, #efe2cc 55%, #e3d2b4 100%);
}

.area-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #8a6a45;
  margin-bottom: 6px;
  text-align: center;
}

/* ── Sample card (the "Find" sign) ─────────────────────────────────── */
#sample-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  transition: opacity 0.4s ease, transform 0.4s cubic-bezier(.34,1.4,.5,1);
}
/* Hidden until the rhyme intro hands off to the trial */
#sample-section.intro-hide {
  opacity: 0;
  transform: translateY(-14px) scale(0.92);
  pointer-events: none;
}

#sample-card {
  width: 230px;
  height: 62px;
  background: linear-gradient(160deg, #6b4423, #8a5a2f);
  border-radius: 14px;
  box-shadow: 0 4px 16px rgba(74,47,28,0.35), inset 0 2px 0 rgba(255,255,255,0.12);
  border: 3px solid #caa46a;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 8px 16px;
}

#sample-word {
  font-weight: 800;
  color: #fff7e8;
  text-align: center;
  line-height: 1.15;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
  overflow-wrap: normal;
  word-break: normal;
}

/* ── Clock stage ───────────────────────────────────────────────────── */
#clock-section {
  position: relative;
  flex: 1 1 auto;
  width: 100%;
  min-height: 0;
  display: flex;
}

#clock-stage {
  position: relative;
  flex: 1 1 auto;
  width: 100%;
  min-height: 0;
  overflow: hidden;
}

/* The floor the clock stands on */
.stage-floor {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--floor-h, 24px);
  background:
    linear-gradient(180deg, #b98a52 0%, #9c6f3c 38%, #80582d 100%);
  border-top: 2px solid #6b4423;
  box-shadow: inset 0 3px 6px rgba(0,0,0,0.18);
  z-index: 1;
}

/* ── Title card (intro): bubble letters, set down then lift off ────── */
.rhyme-title {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  pointer-events: none;
  z-index: 35;
  opacity: 0;
  font-family: "Baloo 2", "Trebuchet MS", "Segoe UI", system-ui, sans-serif;
  font-weight: 900;
  font-size: clamp(2rem, 7.5vw, 4.6rem);
  letter-spacing: 0.015em;
  color: #fff7e8;
  -webkit-text-stroke: 3px #6b4423;
  paint-order: stroke fill;
  text-shadow:
    0 4px 0 #b5651d,
    0 6px 2px rgba(107,68,35,0.45),
    0 10px 18px rgba(0,0,0,0.30);
}
/* Entrance: fade in horizontally + set down with a soft settle */
.rhyme-title.show {
  animation: hdd-title-in 0.85s cubic-bezier(.18,.7,.28,1) forwards;
}
@keyframes hdd-title-in {
  0%   { opacity: 0; transform: translate(-50%, calc(-50% - 46px)) scaleX(0.62) scaleY(0.9); }
  55%  { opacity: 1; transform: translate(-50%, calc(-50% + 9px))  scaleX(1.05) scaleY(1.03); }
  76%  {              transform: translate(-50%, calc(-50% - 4px))  scaleX(0.99) scaleY(0.99); }
  100% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}
/* Exit: fade out + lift up off the page (defined after .show so it wins) */
.rhyme-title.leave {
  animation: hdd-title-out 0.6s ease-in forwards;
}
@keyframes hdd-title-out {
  0%   { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  100% { opacity: 0; transform: translate(-50%, calc(-50% - 72px)) scale(1.08); }
}

/* ── Picture slots (fanned around the clock) ───────────────────────── */
.slot {
  position: absolute;
  width: var(--tile-sz);
  height: var(--tile-sz);
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 5;
  transition: opacity 0.5s ease, filter 0.5s ease;
}
.slot[style*="pointer-events: none"] { cursor: default; }

/* Fades in, in place, during the rhyme intro */
.slot.pre-in {
  opacity: 0;
  filter: blur(3px);
  pointer-events: none;
}

/* The other tiles clear away when the right one is tapped */
.slot.vanish {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.55);
  transition: opacity 0.35s ease, transform 0.35s ease;
  pointer-events: none;
}

.tile-wrapper {
  width: 100%;
  height: 100%;
  will-change: transform, opacity;
}

.tile {
  width: 100%;
  height: 100%;
  position: relative;
  border-radius: 14px;
  border: 3px solid #caa46a;
  background: #fffdf7;
  box-shadow: 0 4px 10px rgba(74,47,28,0.20);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.12s;
}
.slot:not([style*="pointer-events: none"]) .tile:hover {
  border-color: #b5651d;
  box-shadow: 0 6px 16px rgba(181,101,29,0.35);
  transform: scale(1.04);
}
.tile.tile-disabled { cursor: default; }

.tile-front {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tile-front img {
  max-width: 88%;
  max-height: 88%;
  object-fit: contain;
  pointer-events: none;
  display: block;
}
.tile-front .tile-label {
  display: none;
  width: 90%;
  text-align: center;
  font-weight: 700;
  font-size: 1.05rem;
  color: #2d3748;
  word-break: break-word;
  padding: 8px;
  border: 2px dashed #cbd5e0;
  border-radius: 8px;
  background: #f7fafc;
}
.tile-front .tile-label-visible { display: block; }

.tile-badge {
  position: absolute;
  inset: auto 6px 6px auto;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #2f855a;
  color: #fff;
  font-size: 1.1rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.4);
  transition: opacity 0.2s, transform 0.25s cubic-bezier(.34,1.6,.5,1);
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}
.tile.chosen {
  border-color: #2f855a;
  box-shadow: 0 0 0 4px rgba(47,133,90,0.35), 0 8px 20px rgba(0,0,0,0.25);
}
.tile.chosen .tile-badge { opacity: 1; transform: scale(1); }

/* ── Climber (the chosen tile that runs up the clock) ──────────────── */
.tile.climber {
  border-color: #2f855a;
  box-shadow: 0 0 0 4px rgba(47,133,90,0.30), 0 10px 22px rgba(0,0,0,0.30);
}
.tile.climber .tile-badge { opacity: 1; transform: scale(1); }

/* Squash on landing */
.tile-wrapper.squash .tile { transform: scaleY(0.82) scaleX(1.08); }

/* Little scurrying wobble while climbing the case */
@keyframes hdd-cling {
  0%, 100% { rotate: -5deg; }
  50%      { rotate: 5deg; }
}
.tile-wrapper.clinging .tile { animation: hdd-cling 0.34s ease-in-out infinite; }

/* ── Wrong-answer feedback ─────────────────────────────────────────── */
@keyframes hdd-jiggle {
  0%   { transform: translateX(0)    rotate(0deg); }
  15%  { transform: translateX(-8px) rotate(-3deg); }
  30%  { transform: translateX(8px)  rotate(3deg); }
  45%  { transform: translateX(-6px) rotate(-2deg); }
  60%  { transform: translateX(6px)  rotate(2deg); }
  75%  { transform: translateX(-3px) rotate(-1deg); }
  90%  { transform: translateX(3px)  rotate(1deg); }
  100% { transform: translateX(0)    rotate(0deg); }
}
.tile-wrapper.jiggle { animation: hdd-jiggle 0.5s ease; }

@keyframes hdd-flash-red {
  0%   { background: #fffdf7; }
  20%  { background: #fed7d7; }
  50%  { background: #fc8181; }
  100% { background: #fffdf7; }
}
.tile-wrapper.flash-red .tile { animation: hdd-flash-red 0.5s ease; }

/* ── Prompt effects ────────────────────────────────────────────────── */
@keyframes hdd-sparkle {
  0%   { box-shadow: 0 0 6px 3px #ffd700,
                     0 0 14px 6px rgba(255,215,0,0.55),
                     0 0 24px 10px rgba(255,165,0,0.25); }
  50%  { box-shadow: 0 0 12px 6px #ffd700,
                     0 0 28px 12px rgba(255,215,0,0.65),
                     0 0 44px 20px rgba(255,140,0,0.35); }
  100% { box-shadow: 0 0 6px 3px #ffd700,
                     0 0 14px 6px rgba(255,215,0,0.55),
                     0 0 24px 10px rgba(255,165,0,0.25); }
}
.tile.prompt-sparkle {
  animation: hdd-sparkle 1s ease-in-out infinite;
  border-color: #d69e2e !important;
}
.tile.prompt-outline {
  border-color: #2f855a !important;
  box-shadow: 0 0 0 4px rgba(47,133,90,0.4), 0 4px 10px rgba(0,0,0,0.15) !important;
  background: rgba(47,133,90,0.06);
}

/* ── The grandfather clock ─────────────────────────────────────────── */
.clock {
  position: absolute;
  width: var(--clock-w);
  height: var(--clock-h);
  transform: translateX(-50%);
  transform-origin: bottom center;
  z-index: 2;
  filter: drop-shadow(0 12px 20px rgba(60,38,18,0.38));
}
.clock.chiming { animation: hdd-chime 0.9s ease; }
@keyframes hdd-chime {
  0%, 100% { transform: translateX(-50%) rotate(0deg); }
  20%      { transform: translateX(-50%) rotate(-1.1deg); }
  45%      { transform: translateX(-50%) rotate(1.1deg); }
  70%      { transform: translateX(-50%) rotate(-0.55deg); }
}

/* Crown / pediment with the cuckoo door */
.clock-crown {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 76%;
  height: 15%;
  background: linear-gradient(180deg, #7a4a24, #5e3818);
  border-radius: 50% 50% 12% 12% / 70% 70% 12% 12%;
  border: 2px solid #8a5a2f;
  z-index: 3;
}
.cuckoo-door {
  position: absolute;
  top: 38%;
  width: 22%;
  height: 50%;
  background: linear-gradient(180deg, #4a2c12, #3a2410);
  border: 1px solid #2a1808;
  transform-origin: top center;
  transition: transform 0.35s ease;
  z-index: 2;
}
.cuckoo-door.door-left  { left: 28%; border-radius: 4px 0 0 4px; }
.cuckoo-door.door-right { right: 28%; border-radius: 0 4px 4px 0; }
.clock-crown.open .cuckoo-door.door-left  { transform: perspective(140px) rotateY(108deg); }
.clock-crown.open .cuckoo-door.door-right { transform: perspective(140px) rotateY(-108deg); }

.cuckoo {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, 10px) scale(0.2);
  opacity: 0;
  transition: transform 0.3s cubic-bezier(.34,1.7,.5,1), opacity 0.2s;
  z-index: 4;
}
.clock-crown.open .cuckoo {
  transform: translate(-50%, -62%) scale(1.32);
  opacity: 1;
}
/* While the clock strikes, lift it (and the emerging cuckoo) in front
   of the climbing tile so the bird is in the foreground. */
.clock.striking { z-index: 45; }
.cuckoo-bird {
  position: relative;
  width: 26px;
  height: 22px;
  background: radial-gradient(circle at 35% 35%, #ffd24d, #e8961f);
  border-radius: 55% 55% 50% 50%;
  border: 1.5px solid #b9700f;
}
.cuckoo-wing {
  position: absolute;
  left: 1px;
  top: 7px;
  width: 13px;
  height: 9px;
  background: #cf7d12;
  border-radius: 60% 40% 50% 50%;
  transform-origin: left center;
}
.clock-crown.open .cuckoo-wing { animation: hdd-flap 0.32s ease-in-out infinite; }
@keyframes hdd-flap {
  0%, 100% { transform: rotate(0deg); }
  50%      { transform: rotate(-32deg); }
}
.cuckoo-beak {
  position: absolute;
  right: -7px;
  top: 7px;
  width: 0; height: 0;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  border-left: 8px solid #e8761f;
}
.cuckoo-eye {
  position: absolute;
  right: 6px;
  top: 5px;
  width: 4px;
  height: 4px;
  background: #2a1808;
  border-radius: 50%;
}
.cuckoo-bubble {
  position: absolute;
  bottom: 112%;
  left: 50%;
  transform: translateX(-50%) scale(0.5);
  background: #fff;
  color: #5e3818;
  font-weight: 800;
  font-size: 0.72rem;
  padding: 3px 9px;
  border-radius: 10px;
  border: 1.5px solid #caa46a;
  white-space: nowrap;
  opacity: 0;
  transition: transform 0.25s cubic-bezier(.34,1.7,.5,1), opacity 0.2s;
}
.clock-crown.open .cuckoo-bubble {
  opacity: 1;
  transform: translateX(-50%) scale(1);
  transition-delay: 0.15s;
}

/* Head — houses the dial */
.clock-head {
  position: absolute;
  top: 13%;
  left: 50%;
  transform: translateX(-50%);
  width: 96%;
  height: 42%;
  background: linear-gradient(180deg, #8a5a2f, #6b4423);
  border-radius: 50% 50% 8% 8% / 38% 38% 6% 6%;
  border: 3px solid #5e3818;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
.clock-face {
  position: relative;
  width: 78%;
  aspect-ratio: 1 / 1;
  max-height: 86%;
}
.clock-dial { width: 100%; height: 100%; display: block; }

.hand {
  position: absolute;
  left: 50%;
  bottom: 50%;
  transform-origin: bottom center;
  border-radius: 3px;
  background: #3a2410;
}
.hand-hour {
  width: 4.5%;
  height: 26%;
  transform: translateX(-50%) rotate(360deg);
}
.hand-minute {
  width: 3%;
  height: 37%;
  background: #5a3a1c;
  transform: translateX(-50%) rotate(360deg);
}
.hand-cap {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8%;
  aspect-ratio: 1 / 1;
  background: #3a2410;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

/* Body — tall case with pendulum */
.clock-body {
  position: absolute;
  top: 54%;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 40%;
  background: linear-gradient(180deg, #6b4423, #4a2f1c);
  border-radius: 8px;
  border: 3px solid #5e3818;
  overflow: hidden;
  z-index: 1;
}
.pendulum-window {
  position: absolute;
  inset: 12% 16%;
  background: linear-gradient(180deg, #2a1808, #3a2410);
  border-radius: 6px;
  border: 1px solid #2a1808;
  overflow: hidden;
}
.pendulum {
  position: absolute;
  top: 4%;
  left: 50%;
  width: 6%;
  height: 78%;
  background: #caa46a;
  transform-origin: top center;
  transform: translateX(-50%) rotate(0deg);
  animation: hdd-swing 1.8s ease-in-out infinite;
}
.pendulum-bob {
  position: absolute;
  bottom: -6%;
  left: 50%;
  width: 360%;
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle at 35% 35%, #ffe08a, #c9982f);
  border: 1.5px solid #8a5a2f;
  border-radius: 50%;
  transform: translateX(-50%);
}
@keyframes hdd-swing {
  0%, 100% { transform: translateX(-50%) rotate(13deg); }
  50%      { transform: translateX(-50%) rotate(-13deg); }
}
.clock.chiming .pendulum { animation-duration: 0.6s; }

.mouse {
  position: absolute;
  left: 18%;
  bottom: -16%;
  width: 16%;
  aspect-ratio: 3 / 2;
  background: radial-gradient(circle at 40% 35%, #c9c4bd, #8d877e);
  border-radius: 60% 60% 50% 50%;
  opacity: 0;
}
.mouse-ear {
  position: absolute;
  top: -28%;
  right: 6%;
  width: 42%;
  aspect-ratio: 1 / 1;
  background: #b8b2a8;
  border-radius: 50%;
}
.mouse-tail {
  position: absolute;
  bottom: 28%;
  left: -52%;
  width: 56%;
  height: 14%;
  background: #8d877e;
  border-radius: 4px;
}
.mouse.run { animation: hdd-mouse 1.5s ease-in-out; }
@keyframes hdd-mouse {
  0%   { opacity: 0; bottom: -16%; }
  12%  { opacity: 1; }
  50%  { opacity: 1; bottom: 78%; }
  88%  { opacity: 1; }
  100% { opacity: 0; bottom: -16%; }
}

.clock-base {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  height: 7%;
  background: linear-gradient(180deg, #5e3818, #3a2410);
  border-radius: 4px 4px 8px 8px;
}

/* ── Trial overlay (Next + Retry watermark buttons) ────────────────── */
#trial-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  pointer-events: none;
  z-index: 40;
}

.btn-watermark {
  pointer-events: all;
  padding: 12px 32px;
  border-radius: 12px;
  font-size: 1.15rem;
  font-weight: 800;
  cursor: pointer;
  border: none;
  box-shadow: 0 6px 22px rgba(0,0,0,0.32);
  transition: opacity 0.15s, transform 0.1s;
  letter-spacing: 0.02em;
}
.btn-watermark:hover  { opacity: 0.93; transform: scale(1.04); }
.btn-watermark:active { transform: scale(0.97); }

.btn-watermark-next  { background: rgba(47,133,90,0.95);  color: #fff; }
.btn-watermark-retry { background: rgba(181,101,29,0.92); color: #fff; }

/* ── Bottom bar ────────────────────────────────────────────────────── */
#bottom-bar {
  background: #fff;
  border-top: 2px solid #e6dccb;
  padding: 9px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.btn-prompt {
  background: #dd6b20;
  color: #fff;
  border: none;
  padding: 5px 14px;
  border-radius: 7px;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-prompt:hover { background: #c05621; }

.btn-print {
  background: #6b4423;
  color: #fff;
  border: none;
  padding: 7px 18px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-print:hover { background: #4a2f1c; }

.btn-clear-data {
  background: #c53030;
  color: #fff;
  border: none;
  padding: 7px 18px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-clear-data:hover { background: #9b2c2c; }

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 34px;
  padding: 0;
}
.btn-icon svg { width: 20px; height: 20px; fill: currentColor; }

/* ── Print section ──────────────────────────────────────────────────── */
#print-section { display: none; }

@media print {
  body > *:not(#print-section) { display: none !important; }

  #print-section {
    display: block;
    padding: 18px 24px;
    font-family: Arial, sans-serif;
    font-size: 11pt;
    color: #000;
  }

  #print-section h2 { font-size: 15pt; margin-bottom: 4px; }
  #print-meta { font-size: 9pt; color: #444; margin-bottom: 14px; }

  #results-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 14px;
  }
  #results-table th,
  #results-table td {
    border: 1px solid #666;
    padding: 5px 8px;
    text-align: left;
    vertical-align: top;
  }
  #results-table th {
    background: #e8e8e8;
    font-weight: bold;
    font-size: 9.5pt;
  }
  #results-table tr:nth-child(even) td { background: #f7f7f7; }
  #results-table tr.settings-changed td { background: #e8e8e8 !important; }

  #results-table td.outcome-error      { color: #c0392b; }
  #results-table td.outcome-prompted   { color: #b7791f; }
  #results-table td.outcome-ok         { color: #27ae60; }
  #results-table td.outcome-correction { color: #6b46c1; }

  #print-summary {
    font-size: 9.5pt;
    color: #333;
    border-top: 1px solid #bbb;
    padding-top: 8px;
  }
  #print-summary span { margin-right: 20px; }
}

/* ── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 680px) {
  html, body {
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    overscroll-behavior: contain;
  }
  body { min-height: 0; }

  #app-header { padding: 6px 10px; gap: 6px; }
  #app-header h1 { font-size: 0.98rem; }
  #timer-display { font-size: 1rem; min-width: 56px; padding: 2px 7px; }
  .btn-timer { padding: 3px 8px; font-size: 0.72rem; min-width: 0; }
  #btn-back { padding: 4px 9px; font-size: 0.76rem; }

  #settings-bar { padding: 6px 10px; gap: 6px 8px; }
  .setting-group > label:first-child,
  .checkbox-label { font-size: 0.78rem; }

  #game-area { padding: 10px 8px 4px; }
  .area-label { margin-bottom: 4px; font-size: 0.68rem; }
  #sample-card { width: min(220px, 78vw); height: 52px; padding: 6px 14px; }

  #bottom-bar { padding: 6px 10px; gap: 8px; }
}

@media (orientation: landscape) and (max-height: 520px) {
  html, body {
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
  }
  body { min-height: 0; }

  #app-header { padding: 4px 10px; }
  #settings-bar { padding: 4px 10px; }
  #game-area { flex-direction: row; align-items: center; gap: 10px; padding: 6px 10px; }
  #sample-section { flex: 0 0 auto; }
  #sample-card { width: 140px; height: 60px; padding: 6px 10px; }
  #clock-section { flex: 1 1 auto; }
}