.nick-grade-picker {
  background: var(--nick-surface-b);
}

.nick-grade-picker__options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  justify-content: center;
  max-width: 960px;
  margin: 0 auto 16px;
  /* Use a fixed 2x2 grid on tablet/desktop to prevent uneven wrapping. */
}

.nick-pick {
  border: var(--nick-border);
  background: #f8fafc;
  color: var(--nick-text);
  padding: 12px 18px;
  border-radius: var(--nick-radius-pill);
  min-height: 44px;
  width: 100%;
  min-width: 0;
  cursor: pointer;
  font-size: 15px;
  line-height: 1.4;
  transition: all 0.2s ease;
}

.nick-pick:hover,
.nick-pick:focus-visible {
  border-color: var(--nick-reset-hover);
  background: #eef2ff;
}

.nick-pick:focus-visible {
  outline: 2px solid var(--nick-reset-focus);
  outline-offset: 2px;
}

.nick-pick.is-active {
  background: var(--nick-text);
  color: var(--nick-bg);
  border-color: var(--nick-text);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.2);
}

.nick-grade-picker__note {
  font-size: 14px;
  color: var(--nick-muted-light);
}

.nick-trial {
  background: var(--nick-surface-b);
}

.nick-trial-group {
  border-top: var(--nick-border);
  padding: 20px 0;
}

.nick-trial-group:first-of-type {
  border-top: none;
}

.nick-trial-group__title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--nick-text);
}

.nick-trial-group__round {
  margin-bottom: 16px;
}

.nick-trial-group__meta {
  font-size: clamp(16px, 0.9vw, 18px);
  line-height: 1.7;
  color: var(--nick-muted);
  margin: 0 0 14px;
}

.nick-trial-group__round-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--nick-text);
}

.nick-trial-group__list {
  margin: 0;
  padding-left: 0;
  list-style: none;
  color: var(--nick-ink);
  line-height: 1.7;
}

.nick-trial-group__list li + li {
  margin-top: 10px;
}

.nick-trial-group.is-hidden {
  display: none;
}

.nick-trial__actions {
  margin-top: 24px;
  display: flex;
  justify-content: center;
}

@media (max-width: 767px) {
  .nick-grade-picker__options {
    grid-template-columns: minmax(0, 1fr);
    /* Stack on small screens for comfortable tap targets. */
  }

  .nick-pick {
    width: 100%;
    text-align: center;
    font-size: 14px;
    padding: 12px 16px;
  }

  .nick-trial-group__list {
    padding-left: 0;
  }

  .nick-trial-group__meta {
    margin-bottom: 12px;
  }

  .nick-trial__reset {
    width: 100%;
  }
}