#ub-reaction-time-test,
#ub-reaction-time-test * {
  box-sizing: border-box;
}

#ub-reaction-time-test {
  --ubrtt-text: #31313d;
  --ubrtt-sub: #78788a;
  --ubrtt-line: rgba(104, 92, 164, 0.22);
  --ubrtt-shadow: 0 16px 42px rgba(77, 65, 125, 0.10);
  width: min(100%, 760px);
  max-width: 100%;
  margin: clamp(10px, 2.5vh, 24px) auto;
  color: var(--ubrtt-text);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  font-weight: 400;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  isolation: isolate;
  background: transparent;
}

#ub-reaction-time-test button {
  font: inherit;
  color: inherit;
  -webkit-tap-highlight-color: transparent;
}

#ub-reaction-time-test .ubrtt-shell {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--ubrtt-line);
  border-radius: 24px;
  background: transparent;
  box-shadow: var(--ubrtt-shadow);
}

#ub-reaction-time-test .ubrtt-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: end;
  padding: clamp(10px, 2.2vh, 20px) clamp(10px, 2.6vw, 20px) clamp(8px, 1.8vh, 14px);
}

#ub-reaction-time-test .ubrtt-title {
  margin: 0;
  color: var(--ubrtt-sub);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

#ub-reaction-time-test .ubrtt-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(58px, auto));
  gap: 14px;
  align-items: center;
  text-align: center;
}

#ub-reaction-time-test .ubrtt-stat {
  min-width: 58px;
  text-align: center;
}

#ub-reaction-time-test .ubrtt-stat-label {
  display: block;
  color: var(--ubrtt-sub);
  font-size: 10px;
  letter-spacing: 0.08em;
}

#ub-reaction-time-test .ubrtt-stat-value {
  display: block;
  margin-top: 2px;
  font-size: clamp(15px, 2.8vw, 19px);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

#ub-reaction-time-test .ubrtt-field {
  position: relative;
  height: clamp(240px, min(62vw, 52dvh), 420px);
  margin: 0 14px;
  overflow: hidden;
  border: 1px solid rgba(104, 92, 164, 0.16);
  border-radius: 18px;
  background:
    linear-gradient(rgba(255,255,255,0.84), rgba(255,255,255,0.84)),
    repeating-linear-gradient(
      0deg,
      transparent 0,
      transparent 39px,
      rgba(120, 105, 180, 0.045) 40px
    );
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}

#ub-reaction-time-test .ubrtt-center {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
}

#ub-reaction-time-test .ubrtt-card {
  display: grid;
  grid-template-rows: 20px 96px 24px 46px;
  justify-items: center;
  align-items: center;
  row-gap: 10px;
  width: min(260px, 82%);
  min-height: 216px;
  padding: 0;
}

#ub-reaction-time-test .ubrtt-status {
  grid-row: 1;
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 1.55em;
  margin: 0;
  color: var(--ubrtt-sub);
  font-size: 10px;
  line-height: 1.55;
  letter-spacing: 0.02em;
  text-align: center;
}

#ub-reaction-time-test .ubrtt-status:empty {
  visibility: hidden;
}

#ub-reaction-time-test.is-idle .ubrtt-submessage + .ubrtt-action {
  margin-top: 14px;
}

#ub-reaction-time-test .ubrtt-target {
  grid-row: 2;
  position: relative;
  width: clamp(64px, 16vw, 96px);
  max-width: calc(100% - 24px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  padding: 8px;
  border: 1.5px solid rgba(108, 92, 170, 0.42);
  border-radius: 50%;
  background: rgba(255,255,255,0.88);
  box-shadow: 0 10px 28px rgba(82, 69, 130, 0.09);
  font-variant-numeric: tabular-nums;
  cursor: default;
  outline: none;
  touch-action: manipulation;
}

#ub-reaction-time-test .ubrtt-target::before {
  content: "";
  position: absolute;
  inset: -5px;
  border: 1px solid rgba(255,131,183,0.18);
  border-radius: inherit;
  pointer-events: none;
}

#ub-reaction-time-test .ubrtt-target[hidden] {
  display: none !important;
}

#ub-reaction-time-test .ubrtt-target.is-preview {
  cursor: default;
  background: rgba(255,255,255,0.96);
  pointer-events: none;
}

#ub-reaction-time-test .ubrtt-target.is-waiting {
  cursor: pointer;
  background: rgba(255,255,255,0.96);
}

#ub-reaction-time-test .ubrtt-target.is-go,
#ub-reaction-time-test .ubrtt-target.is-early {
  cursor: pointer;
  border-color: rgba(154,134,255,0.62);
  background: linear-gradient(
    135deg,
    rgba(255,131,183,0.30),
    rgba(154,134,255,0.24) 52%,
    rgba(118,219,232,0.30)
  );
  box-shadow: 0 10px 28px rgba(82, 69, 130, 0.09), inset 0 0 0 1px rgba(255,255,255,0.52);
}

#ub-reaction-time-test .ubrtt-target.is-go::before,
#ub-reaction-time-test .ubrtt-target.is-early::before {
  border-color: rgba(154,134,255,0.34);
}

#ub-reaction-time-test .ubrtt-message {
  margin: 0;
  max-width: 100%;
  font-size: clamp(12px, 3vw, 17px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: 0.055em;
  font-variant-numeric: tabular-nums;
  white-space: pre-line;
}

#ub-reaction-time-test .ubrtt-message.is-alert {
  font-size: clamp(28px, 7vw, 42px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0;
}

#ub-reaction-time-test .ubrtt-message.is-result {
  font-size: clamp(20px, 5vw, 28px);
  font-weight: 500;
  letter-spacing: 0.01em;
}

#ub-reaction-time-test .ubrtt-message.is-result-long {
  font-size: clamp(17px, 4.2vw, 23px);
}

#ub-reaction-time-test .ubrtt-message.is-result-very-long {
  font-size: clamp(14px, 3.5vw, 19px);
}

#ub-reaction-time-test .ubrtt-unit {
  display: block;
  margin-top: 3px;
  color: var(--ubrtt-sub);
  font-size: 0.42em;
  font-weight: 500;
  letter-spacing: 0.05em;
}

#ub-reaction-time-test .ubrtt-submessage {
  grid-row: 3;
  min-height: 1.55em;
  margin: 0;
  color: var(--ubrtt-sub);
  font-size: 10px;
  line-height: 1.55;
  letter-spacing: 0.02em;
  text-align: center;
}

#ub-reaction-time-test .ubrtt-submessage:empty {
  visibility: hidden;
}

#ub-reaction-time-test .ubrtt-action {
  grid-row: 4;
  min-width: clamp(108px, 28vw, 150px);
  min-height: clamp(40px, 7vh, 46px);
  padding: 9px 18px;
  border: 1px solid rgba(104, 92, 164, 0.34);
  border-radius: 999px;
  background: rgba(255,255,255,0.54);
  cursor: pointer;
  font-size: 13px;
  letter-spacing: 0.08em;
  transition: transform .08s ease, border-color .15s ease, background .15s ease;
}

#ub-reaction-time-test .ubrtt-action:hover {
  border-color: rgba(255,131,183,0.68);
  background: rgba(255,255,255,0.82);
}

#ub-reaction-time-test .ubrtt-action:active {
  transform: scale(.98);
}

#ub-reaction-time-test .ubrtt-action:focus-visible,
#ub-reaction-time-test .ubrtt-target:focus-visible,
#ub-reaction-time-test .ubrtt-sound-toggle:focus-visible {
  outline: 2px solid rgba(90, 82, 170, 0.68);
  outline-offset: 2px;
}

#ub-reaction-time-test .ubrtt-tools {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 42px;
  padding: 10px 14px 12px;
}

#ub-reaction-time-test .ubrtt-sound {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ubrtt-sub);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  white-space: nowrap;
}

#ub-reaction-time-test .ubrtt-sound-toggle {
  position: relative;
  width: 38px;
  height: 20px;
  padding: 0;
  border: 1px solid rgba(104, 92, 164, 0.28);
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  transition: transform .08s ease, border-color .15s ease, background .15s ease, box-shadow .15s ease;
}

#ub-reaction-time-test .ubrtt-sound-toggle[aria-pressed="true"] {
  border-color: rgba(154,134,255,0.62);
  background: linear-gradient(135deg, rgba(255,131,183,0.10), rgba(118,219,232,0.12));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.5);
}

#ub-reaction-time-test .ubrtt-sound-knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 12px;
  height: 12px;
  border: 1px solid rgba(104, 92, 164, 0.28);
  border-radius: 50%;
  background: rgba(255,255,255,0.92);
  transition: transform .16s ease, border-color .15s ease;
}

#ub-reaction-time-test .ubrtt-sound-toggle[aria-pressed="true"] .ubrtt-sound-knob {
  transform: translateX(18px);
  border-color: rgba(154,134,255,0.62);
}

#ub-reaction-time-test .ubrtt-sound-toggle:hover {
  border-color: rgba(154,134,255,0.62);
}

#ub-reaction-time-test .ubrtt-sound-toggle:active {
  transform: scale(.96);
}

#ub-reaction-time-test .ubrtt-description {
  margin: 9px 8px 0;
  color: var(--ubrtt-sub);
  font-size: 10px;
  line-height: 1.55;
  text-align: center;
}

@media (max-width: 560px) {
  #ub-reaction-time-test {
    margin: 16px auto;
  }

  #ub-reaction-time-test .ubrtt-shell {
    border-radius: 18px;
  }

  #ub-reaction-time-test .ubrtt-head {
    grid-template-columns: 1fr;
    align-items: start;
    padding: 16px 14px 11px;
  }

  #ub-reaction-time-test .ubrtt-stats {
    width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  #ub-reaction-time-test .ubrtt-stat {
    min-width: 0;
  }

  #ub-reaction-time-test .ubrtt-field {
    height: clamp(230px, 70vw, 340px);
    margin-inline: 10px;
  }

  #ub-reaction-time-test .ubrtt-target {
    width: clamp(70px, 22vw, 94px);
  }

  #ub-reaction-time-test .ubrtt-card {
    grid-template-rows: 20px 96px 24px 46px;
    min-height: 216px;
  }
}

@media (max-height: 520px) and (orientation: landscape) {
  #ub-reaction-time-test {
    margin-block: 6px;
  }

  #ub-reaction-time-test .ubrtt-head {
    padding-block: 8px;
  }

  #ub-reaction-time-test .ubrtt-field {
    height: clamp(190px, 48dvh, 250px);
  }

  #ub-reaction-time-test .ubrtt-card {
    gap: 8px;
  }

  #ub-reaction-time-test.is-idle .ubrtt-submessage + .ubrtt-action {
    margin-top: 9px;
  }

  #ub-reaction-time-test .ubrtt-target {
    width: 72px;
  }

  #ub-reaction-time-test .ubrtt-card {
    grid-template-rows: 20px 96px 24px 46px;
    min-height: 216px;
  }

  #ub-reaction-time-test .ubrtt-description {
    margin-top: 7px;
  }
}

@media (prefers-reduced-motion: reduce) {
  #ub-reaction-time-test *,
  #ub-reaction-time-test *::before,
  #ub-reaction-time-test *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition: none !important;
  }
}

#ub-reaction-time-test .ubrtt-action[hidden] {
  display: block !important;
  visibility: hidden;
  pointer-events: none;
}