* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: sans-serif;
  background-color: #f5f5f5;
  color: #1a1a1a;
}

.container {
  max-width: 480px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

.header {
  display: flex;
  flex-direction: row;
  align-items: center;
}

.logo {
  width: 36px;
  height: 36px;
  background-color: #a32d2d;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  margin-right: 10px;
}

.header-text h1 {
  font-size: 20px;
  font-weight: bold;
}

.header-text p {
  font-size: 15px;
  color: #666;
  margin-top: 2px;
}

.viewfinder {
  width: 100%;
  aspect-ratio: 4/3;
  background-color: #e8e8e8;
  border-radius: 12px;
  border: 1px solid #ddd;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 1.5rem;
  overflow: hidden;
}

.viewfinder i {
  font-size: 48px;
  color: #aaa;
}

.viewfinder p {
  font-size: 14px;
  color: #888;
}

.corner {
  position: absolute;
  width: 22px;
  height: 22px;
  border-color: #a32d2d;
  border-style: solid;
}

.tl {
  top: 14px;
  left: 14px;
  border-width: 2px 0 0 2px;
}

.tr {
  top: 14px;
  right: 14px;
  border-width: 2px 2px 0 0;
}

.bl {
  bottom: 14px;
  left: 14px;
  border-width: 0 0 2px 2px;
}

.br {
  bottom: 14px;
  right: 14px;
  border-width: 0 2px 2px 0;
}

.actions {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  margin: 10px 0 10px 0;
}

.btn-primary {
  padding: 10px 20px;
  border-radius: 6px;
  border: none;
  background-color: #a32d2d;
  color: white;
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  font-size: 14px;
  margin-right: 10px;
  transition: background-color 0.15s;
}

.btn-primary:active {
  background-color: #a15050;
}

.btn {
  padding: 10px 20px;
  border-radius: 6px;
  border: 1px solid #a32d2d;
  background-color: white;
  color: #a32d2d;
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  font-size: 14px;
  transition:
    background-color 0.15s,
    color 0.15s;
}

.btn:active {
  background-color: #a32d2d;
  color: white;
}

.result-card {
  margin-top: 1 rem;
  background: white;
  border: 1px solid #ddd;
  border-radius: 12px;
  padding: 1rem 1.25rem;
}

.result-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.sign-badge {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: #fcebeb;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #a32d2d;
  font-size: 22px;
}

.result-label {
  font-size: 16px;
  font-weight: 600;
  color: #1a1a1a;
}

.result-conf {
  font-size: 13px;
  color: #666;
  margin-top: 2px;
}

.bar-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bar-label {
  font-size: 13px;
  color: #666;
  width: 130px;
}

.bar-track {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: #eee;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 3px;
  background: #a32d2d;
  width: 0%;
  transition: width 0.5s ease;
}

.bar-percent {
  font-size: 13px;
  color: #666;
  width: 36px;
  text-align: right;
}

/* LED row */
.led-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 1rem;
  padding: 10px 14px;
  background: #f0f0f0;
  border-radius: 8px;
  border: 1px solid #ddd;
}

.led {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #333;
  border: 1.5px solid rgba(0, 0, 0, 0.1);
  transition: all 0.4s ease;
}


/* Mobile adjustments */
@media (max-width: 600px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
  }

  .logo {
    margin-bottom: 8px;
  }

  .viewfinder {
    aspect-ratio: 1/1; /* square on phones */
  }

  .actions {
    flex-direction: column;
    gap: 10px;
  }

  .btn-primary, .btn {
    width: 100%;   /* buttons full width on mobile */
    justify-content: center;
  }

  .result-card, .led-row {
    padding: 0.75rem;
  }

  .result-label {
    font-size: 14px;
  }

  .result-conf, .bar-label, .bar-percent {
    font-size: 12px;
  }
}