@import url('../assets/tokens.css');

*,
*::before,
*::after {
  box-sizing: border-box;
}

body.papers-page {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  background: var(--bd-bg);
  color: var(--bd-text);
  -webkit-font-smoothing: antialiased;
}

.papers-page .bd-topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bd-bg);
  border-bottom: 1px solid var(--bd-border);
}

.papers-page .bd-main {
  flex: 1;
}

.papers-page .bd-footer {
  padding: 16px;
  border-top: 1px solid var(--bd-border);
  background: var(--bd-bg);
  text-align: center;
}

.papers-intro {
  max-width: 680px;
}

.papers-controls {
  max-width: 980px;
  margin-top: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--bd-border);
}

.papers-search-row {
  max-width: 720px;
}

.papers-field {
  display: grid;
  min-width: 0;
  gap: 7px;
}

.papers-field[hidden] {
  display: none;
}

.papers-field .bd-label,
.papers-sort-field span {
  color: var(--bd-text-secondary);
}

.papers-input-wrap {
  position: relative;
  display: block;
}

.papers-page .bd-input {
  width: 100%;
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--bd-border-strong);
  border-radius: var(--bd-radius-md);
  background: var(--bd-bg);
  color: var(--bd-text);
  font: 400 14px/1 var(--bd-font);
}

.papers-page .bd-input::placeholder {
  color: var(--bd-text-tertiary);
}

.papers-page .bd-input:focus {
  outline: none;
  border-color: var(--bd-primary);
  box-shadow: 0 0 0 3px var(--bd-primary-light);
}

.papers-page .bd-input:focus-visible {
  outline: 2px solid var(--bd-primary);
  outline-offset: 2px;
}

.papers-page .bd-input-sm {
  width: auto;
  min-width: 128px;
  height: 32px;
  font-size: 13px;
}

.papers-clear-button {
  position: absolute;
  top: 50%;
  right: 8px;
  width: 24px;
  height: 24px;
  padding: 0;
  transform: translateY(-50%);
  border: 0;
  border-radius: var(--bd-radius-full);
  background: transparent;
  color: var(--bd-text-tertiary);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
}

.papers-clear-button:hover {
  color: var(--bd-text);
  background: var(--bd-bg-tertiary);
}

.papers-filter-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(140px, 1fr)) auto;
  align-items: end;
  gap: 12px;
  margin-top: 18px;
}

.papers-check-field {
  display: inline-flex;
  align-items: center;
  align-self: end;
  min-height: 38px;
  gap: 8px;
  padding: 0 4px;
  color: var(--bd-text-secondary);
  font-size: 13px;
  white-space: nowrap;
}

.papers-check-field input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--bd-primary);
}

.papers-active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.papers-filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 26px;
  padding: 0 8px;
  border: 1px solid var(--bd-border-strong);
  border-radius: var(--bd-radius-md);
  background: var(--bd-bg);
  color: var(--bd-text-secondary);
  font-size: 12px;
}

.papers-filter-chip button {
  width: 16px;
  height: 16px;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
}

.papers-clear-all {
  min-height: 26px;
  padding: 0 8px;
  border: 0;
  background: transparent;
  color: var(--bd-primary);
  cursor: pointer;
  font-size: 12px;
}

.papers-results-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 980px;
  padding: 18px 0 10px;
}

.papers-results-toolbar p {
  margin: 0;
  color: var(--bd-text-secondary);
}

.papers-sort-field {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--bd-text-tertiary);
  font-size: 12px;
  white-space: nowrap;
}

.papers-list {
  max-width: 980px;
  border-top: 1px solid var(--bd-border);
}

.paper-item {
  padding: 20px 0 22px;
  border-bottom: 1px solid var(--bd-border);
}

.paper-item-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.paper-context,
.paper-source,
.paper-authors {
  margin: 0;
  color: var(--bd-text-tertiary);
  font-size: 12px;
  line-height: 1.5;
}

.paper-context {
  color: var(--bd-text-secondary);
}

.paper-importance {
  flex: 0 0 auto;
  color: var(--bd-primary-text);
  font-size: 12px;
  font-weight: 600;
}

.paper-title {
  margin: 7px 0 5px;
  color: var(--bd-text);
  font-family: var(--bd-font-heading);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -.015em;
  line-height: 1.3;
}

.paper-authors {
  color: var(--bd-text-secondary);
}

.paper-contribution {
  max-width: 780px;
  margin: 12px 0 12px;
  color: var(--bd-text);
  font-size: 14px;
  line-height: 1.6;
}

.paper-supporting-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  color: var(--bd-text-secondary);
  font-size: 12px;
}

.paper-topic {
  padding: 3px 7px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-sm);
  color: var(--bd-text-secondary);
}

.paper-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.papers-page .bd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: var(--bd-radius-md);
  font: 500 13px/1 var(--bd-font);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
}

.papers-page .bd-btn-primary {
  border-color: var(--bd-primary);
  background: var(--bd-primary);
  color: #fff;
}

.papers-page .bd-btn-primary:hover {
  border-color: var(--bd-primary-hover);
  background: var(--bd-primary-hover);
}

.papers-page .bd-btn-secondary {
  border-color: var(--bd-border-strong);
  background: var(--bd-bg);
  color: var(--bd-text);
}

.papers-page .bd-btn-secondary:hover {
  background: var(--bd-bg-tertiary);
}

.paper-source {
  margin-top: 12px;
}

.papers-state {
  max-width: 520px;
  margin: 28px auto 48px;
  padding: 24px;
  border: 1px dashed var(--bd-border-strong);
  background: var(--bd-bg-secondary);
  text-align: center;
}

.papers-state h2 {
  margin: 0 0 8px;
}

.papers-state .bd-body {
  margin: 0 0 16px;
  color: var(--bd-text-secondary);
}

.papers-error-state {
  border-color: var(--bd-danger);
}

@media (max-width: 600px) {
  .papers-controls {
    margin-top: 24px;
  }

  .papers-filter-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .papers-check-field {
    grid-column: 1 / -1;
  }

  .papers-results-toolbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .papers-sort-field {
    width: 100%;
    justify-content: space-between;
  }

  .papers-sort-field .bd-input-sm {
    flex: 1;
  }

  .paper-item-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .paper-title {
    font-size: 18px;
  }
}