/* concept-search.css */

.concept-search {
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding: 32px;
  border-radius: 28px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  background: rgba(11, 18, 32, 0.78);
  box-shadow: 0 24px 64px rgba(8, 15, 35, 0.35);
  backdrop-filter: blur(18px);
}

.concept-search__inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.concept-search__header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.concept-search__title {
  margin: 0;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: rgba(226, 232, 240, 0.95);
}

.concept-search__subtitle {
  margin: 0;
  font-size: 15px;
  color: rgba(226, 232, 240, 0.72);
  line-height: 1.5;
}

.concept-search__search {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.concept-search__input {
  width: 100%;
  padding: 14px 18px;
  border-radius: 16px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  background: rgba(15, 23, 42, 0.65);
  color: rgba(226, 232, 240, 0.95);
  font-size: 15px;
  font-family: inherit;
  transition: border 0.2s ease, background 0.2s ease;
}

.concept-search__input::placeholder {
  color: rgba(148, 163, 184, 0.58);
}

.concept-search__input:focus {
  outline: none;
  border-color: rgba(56, 189, 248, 0.65);
  background: rgba(15, 23, 42, 0.85);
}

.concept-search__body {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.concept-search__error {
  margin: 0;
  padding: 12px 16px;
  border-radius: 14px;
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.28);
  font-size: 14px;
  line-height: 1.5;
  color: rgba(254, 226, 226, 0.92);
}

.concept-search__results {
  min-height: 100px;
}

.concept-search__status {
  padding: 24px 18px;
  border-radius: 18px;
  border: 1px dashed rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.52);
  font-size: 14px;
  color: rgba(226, 232, 240, 0.75);
  text-align: center;
  margin: 0;
}

.concept-search__results-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.concept-search__result {
  padding: 18px 20px;
  border-radius: 18px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  background: rgba(15, 23, 42, 0.58);
  transition: border 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.concept-search__result:hover {
  border-color: rgba(148, 163, 184, 0.35);
  background: rgba(15, 23, 42, 0.75);
  transform: translateY(-1px);
}

.concept-search__result-title {
  margin: 0 0 10px 0;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: rgba(226, 232, 240, 0.95);
}

.concept-search__result-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 8px;
  font-size: 13px;
}

.concept-search__result-count {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  border-radius: 999px;
  background: rgba(96, 165, 250, 0.18);
  color: rgba(191, 219, 254, 0.92);
  font-weight: 500;
}

.concept-search__result-threads {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  border-radius: 999px;
  background: rgba(168, 85, 247, 0.18);
  color: rgba(233, 213, 255, 0.92);
  font-weight: 500;
}

.concept-search__result-date {
  margin: 4px 0 0 0;
  font-size: 13px;
  color: rgba(148, 163, 184, 0.78);
  line-height: 1.4;
}

@media (max-width: 960px) {
  .concept-search {
    padding: 24px;
    border-radius: 24px;
  }
}

@media (max-width: 640px) {
  .concept-search {
    padding: 20px;
    margin: 0;
  }

  .concept-search__result {
    padding: 16px;
  }

  .concept-search__result-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}