/* Stop The Timer Challenge Styles */

.stop-timer-section {
  max-width: 580px;
  margin: 10px auto 0 auto;
  padding: 10px;
  background: #FAE9D5;
  border-radius: 18px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.74);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.stop-timer-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.65), rgba(255, 255, 255, 0) 40%);
  pointer-events: none;
  opacity: 0.55;
}

.Challenge-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 18px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.35);
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 24px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.target {
  font-family: 'Clash';
  font-size: 1.4rem;
  font-weight: bold;
  margin-bottom: 22px;
  margin-top: 22px;
  color: #333;
  text-align: center;
}

.timer-display {
  font-family: 'Clash';
  font-size: 48px;
  background: #111;
  color: #0f0;
  padding: 18px 28px;
  border-radius: 8px;
  min-width: 220px;
  text-align: center;
  margin: 12px auto 18px;
}

.controls {
  display: flex;
  gap: 10px;
  justify-content: center;
  align-items: center;
  margin-bottom: 22px;
  margin-top: 22px;
}


/* Start/Stop circular buttons styled like F1 Reflex stop button */
.stop-btn,
.start-btn {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  color: #fff;
  font-family: "Clash";
  font-weight: 900;
  font-size: 1.05rem;
  border: 0.1rem solid rgba(0, 0, 0, 0.08);
  box-shadow: -0.1rem -0.1rem 0 #222, 0.1rem -0.1rem 0 #222, -0.1rem 0.1rem 0 #222, 0.1rem 0.1rem 0 #222, 0 0.6rem 0 #222, 0 1rem 0 rgba(0, 0, 0, 0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.12s;
  position: relative;
  line-height: 1;
  /* ensure consistent vertical centering */
  margin: 0;
  /* reset any user-agent margin */
}

/* Force buttons inside controls to center exactly */
.controls>.start-btn,
.controls>.stop-btn {
  align-self: center;
  vertical-align: middle;
}

.stop-btn {
  background: #e51217;
  border-color: #eb464b;
}

.stop-btn::after {
  content: "";
  position: absolute;
  width: 70%;
  height: 28%;
  border-radius: 50%;
  top: 8%;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(to top, rgba(255, 255, 255, 0.18), #ff8085);
  opacity: 0.9;
}

.stop-btn:active {
  transform: scale(0.98);
}

.start-btn {
  background: #7ec62d;
  border-color: #98de4e;
}

.start-btn::after {
  content: "";
  position: absolute;
  width: 70%;
  height: 28%;
  border-radius: 50%;
  top: 8%;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(to top, rgba(255, 255, 255, 0.18), #dcf684);
  opacity: 0.9;
}

.start-btn:active {
  transform: scale(0.98);
}

.btn[disabled] {
  opacity: 0.45;
  cursor: default;
}

.odd-hud {
  margin-top: 10px;
  display: flex;
  justify-content: center;
  gap: 12px;
}

.st-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(12, 14, 22, 0.68);
  backdrop-filter: blur(8px);
  z-index: 30;
}

.st-overlay-card {
  width: min(440px, calc(100% - 48px));
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 22px;
  padding: 22px 22px 20px;
  text-align: center;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.35);
  position: relative;
  z-index: 1;
}

.st-overlay-title {
  font-size: 2.1rem;
  font-weight: 900;
  color: #0d1020;
  letter-spacing: 0.01em;
}

.st-score-label {
  margin-top: 16px;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(13, 16, 32, 0.55);
}

.st-score {
  margin-top: 6px;
  font-size: 4.1rem;
  font-weight: 900;
  line-height: 1;
  color: #0d1020;
}

/* user time status styling */
.Challenge-over-overlay .Challenge-over-score.wrong {
  color: #e51217;
}

.Challenge-over-overlay .Challenge-over-score.correct {
  color: #01f768;
}

.st-overlay-btn {
  margin-top: 18px;
  padding: 12px 42px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  color: #fff;
  font-weight: 900;
  font-size: 1.1rem;
  background: linear-gradient(90deg, #111 0%, #2a2f4a 100%);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.22);
  transition: transform 0.12s, box-shadow 0.2s, filter 0.2s;
  font-family: 'Poppins', sans-serif;
}

.st-overlay-btn:hover {
  transform: translateY(-2px);
  filter: saturate(1.1);
  box-shadow: 0 22px 52px rgba(0, 0, 0, 0.28);
}

.st-overlay-btn:active {
  transform: translateY(0px) scale(0.99);
}

@media (max-width: 1000px) {
  .stop-timer-section {
    max-width: 580px;
    margin: 10px auto 0 auto;
    padding: 10px 18px;
  }

  .Challenge-card {
    padding: 14px 14px 14px;
  }

  .st-overlay-card {
    padding: 14px 14px 14px;
    width: min(420px, calc(100% - 40px));
  }

  .st-overlay-title {
    font-size: 1.6rem;
  }

  .st-overlay-btn {
    padding: 12px 34px;
    font-size: 1rem;
  }
}

@media (max-width: 800px) {
  .stop-timer-section {
    max-width: 480px;
    margin: 10px auto 0 auto;
    padding: 12px 16px;
  }

  .Challenge-card {
    padding: 12px 12px 12px;
  }

  .st-overlay-card {
    padding: 12px 12px 12px;
    width: min(380px, calc(100% - 32px));
  }

  .st-overlay-title {
    font-size: 1.4rem;
  }

  .st-overlay-btn {
    padding: 10px 30px;
    font-size: 0.95rem;
  }
}

@media (max-width: 600px) {
  .stop-timer-section {
    max-width: 90%;
    margin: 10px auto 0 auto;
    padding: 12px 14px;
  }

  .Challenge-card {
    padding: 10px 10px 10px;
  }

  .st-overlay-card {
    padding: 10px 10px 10px;
    width: min(360px, calc(100% - 32px));
  }

  .st-overlay-title {
    font-size: 1.2rem;
  }

  .st-overlay-btn {
    padding: 8px 25px;
    font-size: 0.8rem;
  }
}