.bk-color-page {
  color: #333;
  padding-bottom: 35px;
}

.bk-color-main {
  max-width: 1040px;
  padding-top: 24px;
}

.bk-color-quick-guide {
  background: #f4f9f1;
  border: 1px solid #bfd4b3;
  border-radius: 10px;
  margin-bottom: 18px;
  padding: 15px 18px;
}

.bk-color-quick-guide h2 {
  color: #385f25;
  font-size: 1.25em;
  margin: 0 0 12px;
}

.bk-color-quick-guide ol {
  counter-reset: guide-step;
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, 1fr);
  list-style: none;
  margin: 0;
  padding: 0;
}

.bk-color-quick-guide li {
  min-height: 44px;
  padding-left: 48px;
  position: relative;
}

.bk-color-quick-guide li::before {
  align-items: center;
  background: #5d9635;
  border-radius: 50%;
  color: #fff;
  content: counter(guide-step);
  counter-increment: guide-step;
  display: flex;
  font-size: 1.08em;
  font-weight: 700;
  height: 36px;
  justify-content: center;
  left: 0;
  position: absolute;
  top: 2px;
  width: 36px;
}

.bk-color-quick-guide strong,
.bk-color-quick-guide span {
  display: block;
}

.bk-color-quick-guide span {
  color: #5e6859;
  font-size: .91em;
  line-height: 1.45;
  margin-top: 2px;
}

.bk-color-tool {
  align-items: stretch;
  background: #fff;
  border: 1px solid #d8e1d2;
  border-radius: 14px;
  box-shadow: 0 5px 18px rgba(50, 80, 38, .09);
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(230px, .72fr) minmax(480px, 1.6fr);
  padding: 24px;
}

.bk-color-preview-column {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.bk-color-preview {
  align-items: center;
  background: #3399ff;
  border: 1px solid rgba(0, 0, 0, .14);
  border-radius: 10px;
  color: #000;
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  min-height: 195px;
  padding: 25px 15px;
  text-align: center;
  transition: background-color .15s ease;
}

.bk-color-preview span {
  font-size: 1.4em;
  font-weight: 700;
}

.bk-color-preview strong {
  font-size: 2em;
  margin-top: 8px;
}

.bk-color-favorite-main {
  background: #fff9df;
  border: 1px solid #e4bf25;
  color: #6d5700;
  font-size: 1.08em;
  min-height: 46px;
}

.bk-color-swatch-favorite:not(.bk-color-swatch-remove):not(.is-favorite) i {
  opacity: .42;
}

.bk-color-favorite-main.is-favorite {
  background: #ffdf5e;
  color: #493900;
}

.bk-color-controls {
  min-width: 0;
}

.bk-color-input-row {
  align-items: center;
  display: grid;
  gap: 10px;
  grid-template-columns: auto 58px auto minmax(120px, 1fr);
  margin-bottom: 16px;
}

.bk-color-input-row label {
  margin: 0;
  white-space: nowrap;
}

#native-color {
  background: #fff;
  border: 1px solid #aaa;
  border-radius: 6px;
  cursor: pointer;
  height: 46px;
  padding: 3px;
  width: 58px;
}

.bk-color-hex-input {
  align-items: center;
  border: 1px solid #aaa;
  border-radius: 6px;
  display: flex;
  font-size: 1.2em;
  height: 46px;
  padding-left: 12px;
}

.bk-color-hex-input:focus-within {
  border-color: #4b8f19;
  box-shadow: 0 0 0 3px rgba(75, 143, 25, .18);
}

.bk-color-hex-input input {
  border: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  height: 42px;
  min-width: 0;
  outline: 0;
  padding: 8px 10px 8px 2px;
  text-transform: uppercase;
  width: 100%;
}

.bk-color-error {
  color: #b32828;
  margin: -8px 0 10px;
}

.bk-color-values {
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr 1fr;
}

.bk-color-value-row {
  align-items: center;
  display: grid;
  gap: 10px;
  grid-template-columns: 48px minmax(0, 1fr) 98px;
  min-height: 57px;
  border: 1px solid #ddd;
  border-radius: 7px;
  padding: 7px 9px 7px 14px;
}

.bk-color-value-row:first-child {
  grid-column: 1 / -1;
}

.bk-color-value-label {
  color: #56714a;
  font-weight: 700;
}

.bk-color-value-row code {
  background: transparent;
  color: #222;
  font-size: 1.05em;
  overflow: hidden;
  padding: 0;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bk-copy-button {
  min-height: 42px;
}

.bk-copy-button i {
  margin-right: 5px;
}

.bk-color-format-note {
  color: #6b6b6b;
  font-size: .88em;
  margin: 8px 2px 0;
}

.bk-color-notice {
  background: #fff1a8;
  border: 1px solid #d6af13;
  border-radius: 7px;
  box-shadow: 0 3px 12px rgba(0, 0, 0, .15);
  left: 50%;
  max-width: calc(100% - 30px);
  padding: 11px 18px;
  position: fixed;
  top: 18px;
  transform: translateX(-50%);
  z-index: 1100;
}

.bk-color-notice.is-error {
  background: #ffe4e4;
  border-color: #c75050;
}

.bk-color-notice.is-anchored {
  text-align: center;
}

.bk-color-section {
  border-top: 1px solid #dfe6da;
  margin-top: 32px;
  padding-top: 25px;
}

.bk-color-favorites-primary {
  background: #fffcf0;
  border: 1px solid #ead795;
  border-radius: 10px;
  margin-top: 24px;
  padding: 20px;
}

.bk-color-section h2 {
  color: #385f25;
  font-size: 1.55em;
  margin: 0 0 10px;
}

.bk-color-section h2 i {
  color: #6da735;
  margin-right: 5px;
}

.bk-color-section-heading {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.bk-favorite-count {
  color: #666;
  font-weight: 700;
}

.bk-color-swatch-grid {
  display: grid;
  gap: 10px;
}

.bk-color-shade-grid {
  grid-template-columns: repeat(9, minmax(70px, 1fr));
}

.bk-color-related-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.bk-color-favorite-grid {
  grid-template-columns: repeat(5, minmax(120px, 1fr));
}

.bk-color-swatch {
  background: var(--swatch-color);
  border: 1px solid rgba(0, 0, 0, .2);
  border-radius: 8px;
  color: var(--swatch-text);
  min-height: 88px;
  overflow: hidden;
  position: relative;
}

.bk-color-swatch-select {
  align-items: flex-end;
  background: transparent;
  border: 0;
  color: inherit;
  display: flex;
  height: 100%;
  justify-content: center;
  min-height: 86px;
  padding: 10px 44px 10px 7px;
  text-shadow: 0 1px 2px rgba(255, 255, 255, .18);
  width: 100%;
}

.bk-color-swatch-select span {
  background: rgba(255, 255, 255, .78);
  border-radius: 4px;
  color: #222;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .9em;
  padding: 2px 5px;
}

.bk-color-swatch-name {
  display: block;
  font-family: sans-serif;
  font-size: .88em;
  font-weight: 700;
  margin-bottom: 4px;
}

.bk-color-swatch-actions {
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: absolute;
  right: 5px;
  top: 5px;
}

.bk-color-swatch-favorite,
.bk-color-swatch-copy {
  background: rgba(255, 255, 255, .88);
  border: 1px solid rgba(0, 0, 0, .2);
  border-radius: 50%;
  color: #765f00;
  font-size: .9em;
  height: 32px;
  padding: 0;
  width: 32px;
}

.bk-color-swatch-copy {
  color: #555;
}

.bk-color-swatch-favorite:hover,
.bk-color-swatch-favorite:focus,
.bk-color-swatch-copy:hover,
.bk-color-swatch-copy:focus {
  background: #eee;
  color: #333;
}

.bk-color-swatch-remove {
  color: #a94442;
}

.bk-color-swatch-remove:hover,
.bk-color-swatch-remove:focus {
  background: #c94b40;
  border-color: #b63e34;
  color: #fff;
}

.bk-color-swatch-favorite.is-favorite {
  background: #ffdf5e;
}

.bk-color-empty {
  background: #f7f7f7;
  border: 1px dashed #bbb;
  border-radius: 8px;
  color: #666;
  grid-column: 1 / -1;
  margin: 0;
  padding: 22px;
  text-align: center;
}

.bk-color-filter {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 8px 0;
}

.bk-color-filter-set {
  background: #f7f9f5;
  border: 1px solid #d6dfd1;
  border-radius: 9px;
  margin: 17px 0 8px;
  padding: 10px 12px;
}

.bk-color-filter-label {
  color: #47623a;
  flex: 0 0 74px;
  font-weight: 700;
}

.bk-color-filter .btn {
  background: #f4f7f1;
  border: 1px solid #aebca7;
  min-height: 42px;
}

.bk-color-filter .btn.is-active {
  background: #548c2f;
  border-color: #477928;
  color: #fff;
}

.bk-color-chart {
  display: grid;
  gap: 5px;
  grid-template-columns: repeat(6, minmax(82px, 1fr));
}

.bk-chart-color-card {
  min-width: 0;
  position: relative;
}

.bk-chart-color {
  background: var(--chart-color);
  border: 1px solid rgba(0, 0, 0, .22);
  border-radius: 5px;
  color: var(--chart-text);
  min-height: 55px;
  padding: 4px 38px 4px 4px;
  width: 100%;
}

.bk-chart-color span {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .9em;
}

.bk-chart-color:hover,
.bk-chart-color:focus {
  box-shadow: inset 0 0 0 3px #fff, 0 0 0 2px #333;
  transform: scale(1.035);
  z-index: 1;
}

.bk-chart-copy {
  background: rgba(255, 255, 255, .9);
  border: 1px solid rgba(0, 0, 0, .22);
  border-radius: 50%;
  color: #555;
  height: 32px;
  padding: 0;
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
}

.bk-chart-copy:hover,
.bk-chart-copy:focus {
  background: #fff;
  color: #222;
}

.bk-chart-color-card[hidden] {
  display: none;
}

.bk-chart-count {
  color: #666;
  margin: 8px 0 12px;
  text-align: right;
}

.bk-color-image-link {
  align-items: center;
  background: #f1f8ed;
  border: 1px solid #b9d4aa;
  border-radius: 12px;
  display: grid;
  gap: 20px;
  grid-template-columns: 90px minmax(0, 1fr);
  margin-top: 34px;
  padding: 24px;
}

.bk-color-image-link-icon {
  align-items: center;
  background: #fff;
  border-radius: 50%;
  color: #58922f;
  display: flex;
  font-size: 2.5em;
  height: 80px;
  justify-content: center;
  width: 80px;
}

.bk-color-image-link h2 {
  color: #385f25;
  font-size: 1.4em;
  margin: 0 0 7px;
}

.bk-color-image-link p {
  margin-bottom: 13px;
}

@media (max-width: 991px) {
  .bk-color-tool {
    grid-template-columns: 1fr;
  }

  .bk-color-preview {
    min-height: 150px;
  }

  .bk-color-related-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 767px) {
  .bk-color-main {
    padding-left: 15px;
    padding-right: 15px;
    padding-top: 16px;
  }

  .bk-color-tool {
    gap: 18px;
    grid-template-columns: 1fr;
    padding: 14px;
  }

  .bk-color-quick-guide {
    padding: 14px;
  }

  .bk-color-quick-guide ol {
    gap: 12px;
    grid-template-columns: 1fr;
  }

  .bk-color-input-row {
    grid-template-columns: auto 54px auto minmax(95px, 1fr);
  }

  #native-color {
    width: 54px;
  }

  .bk-color-value-row {
    grid-template-columns: 42px minmax(0, 1fr) 48px;
    padding-left: 9px;
  }

  .bk-color-values {
    grid-template-columns: 1fr;
  }

  .bk-color-value-row:first-child {
    grid-column: auto;
  }

  .bk-copy-button {
    font-size: 1.1em;
    padding: 6px;
  }

  .bk-copy-button span {
    display: none;
  }

  .bk-copy-button i {
    margin: 0;
  }

  .bk-color-shade-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bk-color-related-grid,
  .bk-color-favorite-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bk-color-chart {
    gap: 4px;
    grid-template-columns: repeat(3, 1fr);
  }

  .bk-color-filter-label {
    flex-basis: 100%;
    margin-bottom: 1px;
  }

  .bk-chart-color {
    min-height: 52px;
  }

  .bk-color-image-link {
    grid-template-columns: 58px minmax(0, 1fr);
    padding: 18px 14px;
  }

  .bk-color-image-link .btn {
    line-height: 1.45;
    max-width: 100%;
    white-space: normal;
    width: 100%;
  }

  .bk-color-image-link-icon {
    font-size: 1.75em;
    height: 54px;
    width: 54px;
  }
}

@media (max-width: 374px) {
  .bk-color-input-row {
    grid-template-columns: auto 52px;
  }

  .bk-color-input-row label[for="hex-input"] {
    grid-column: 1;
  }

  .bk-color-hex-input {
    grid-column: 2;
  }

  .bk-color-chart {
    grid-template-columns: repeat(3, 1fr);
  }
}

/*
 * バナー工房の既存UIへ合わせるための外観調整。
 * タイトルバーと灰色の内容枠は一体化させず、別々のブロックとして表示する。
 */
.bk-color-main {
  max-width: none;
}

.bk-color-quick-guide,
.bk-color-tool,
.bk-color-section,
.bk-color-favorites-primary {
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  display: block;
  margin: 20px 0 0;
  padding: 0;
}

.bk-color-quick-guide {
  margin-top: 0;
}

.bk-color-quick-guide h2,
.bk-color-tool > h2,
.bk-color-section > h2,
.bk-color-section-heading {
  background: #78b800;
  border: 1px solid #609400;
  border-radius: 0;
  color: #fff;
  font-size: 1.1em;
  font-weight: 400;
  line-height: 45px;
  margin: 0 0 10px;
  min-height: 45px;
  padding: 0 20px;
}

.bk-color-quick-guide h2 i,
.bk-color-tool > h2 i,
.bk-color-section > h2 i,
.bk-color-section-heading h2 i {
  color: #fff;
}

.bk-color-section-heading {
  align-items: center;
}

.bk-color-section-heading h2 {
  color: #fff;
  font-size: 1em;
  font-weight: 400;
  margin: 0;
}

.bk-color-section-heading .bk-favorite-count {
  color: #fff;
}

.bk-color-section-body {
  background: #fff;
  border: 10px solid #eee;
  border-radius: 0;
  box-shadow: none;
  padding: 15px;
}

.bk-color-section-body > :first-child {
  margin-top: 0;
}

.bk-color-section-body > :last-child {
  margin-bottom: 0;
}

.bk-color-tool-body {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(230px, .72fr) minmax(480px, 1.6fr);
}

.bk-color-preview,
.bk-color-values,
.bk-color-value-row,
.bk-color-swatch,
.bk-color-filter-set,
.bk-color-empty {
  border-radius: 4px;
  box-shadow: none;
}

.bk-color-value-row {
  background: #f7f7f7;
  border-color: #ccc;
}

.bk-color-value-label {
  color: #555;
}

.bk-color-value-row code {
  color: #333;
}

.bk-copy-button {
  background: #fff;
  border-color: #ccc;
}

.bk-copy-button:hover,
.bk-copy-button:focus {
  background: #eee;
  border-color: #adadad;
}

.bk-color-favorite-main {
  background: linear-gradient(to bottom, #7ec200 0%, #7ec200 50%, #61a200 51%, #61a200 100%);
  border-color: #609400;
  color: #fff;
}

.bk-color-favorite-main:not(.is-favorite) i {
  opacity: .65;
}

.bk-color-favorite-main.is-favorite {
  background: linear-gradient(to bottom, #f5b83d 0%, #f5b83d 50%, #e29818 51%, #e29818 100%);
  border-color: #ca8211;
  color: #fff;
}

.bk-color-filter-set {
  background: #eee;
  border: 0;
}

.bk-color-filter .btn {
  background: #fff;
  border-color: #ccc;
}

.bk-color-filter .btn.is-active {
  background: linear-gradient(to bottom, #7ec200 0%, #7ec200 50%, #61a200 51%, #61a200 100%);
  border-color: #609400;
  color: #fff;
}

.bk-color-image-link {
  background: #fff;
  border: 10px solid #eee;
  border-radius: 0;
  box-shadow: none;
  gap: 15px;
  margin-top: 20px;
  padding: 15px;
}

.bk-color-image-link-icon {
  background: #eee;
  border-radius: 4px;
}

.bk-color-image-link h2 {
  color: #4d7f25;
}

@media (max-width: 991px) {
  .bk-color-tool-body {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .bk-color-quick-guide h2,
  .bk-color-tool > h2,
  .bk-color-section > h2,
  .bk-color-section-heading {
    line-height: 42px;
    min-height: 42px;
    padding: 0 12px;
  }

  .bk-color-section-body,
  .bk-color-image-link {
    border-width: 7px;
    padding: 10px;
  }
}