:root {
  --bg: #050505;
  --panel: #101010;
  --panel-2: #151515;
  --panel-3: #1d1d1d;
  --line: rgba(255, 139, 18, 0.24);
  --line-2: rgba(255, 255, 255, 0.11);
  --text: #f6efe5;
  --muted: rgba(246, 239, 229, 0.66);
  --soft: rgba(246, 239, 229, 0.46);
  --quiet: rgba(246, 239, 229, 0.46);
  --orange: #ff8a00;
  --amber: #ffc75a;
  --green: #5ff0a0;
  --red: #ff6565;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.58);
  --radius: 8px;
  --sans: "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
}

html,
body,
body.morse-lab-page {
  min-height: 100%;
}

html {
  background: var(--bg);
}

body,
body.morse-lab-page {
  margin: 0;
  background:
    radial-gradient(circle at 18% 8%, rgba(255, 138, 0, 0.16), transparent 28%),
    radial-gradient(circle at 78% 0%, rgba(255, 199, 90, 0.08), transparent 30%),
    linear-gradient(180deg, #080808 0%, #020202 100%);
  background-color: var(--bg);
  background-attachment: fixed;
  background-repeat: no-repeat;
  color: var(--text);
  font-family: var(--sans);
  letter-spacing: 0;
}

body.morse-lab-page,
body.morse-lab-page .morse-lab-app,
body.morse-lab-page .morse-lab-topbar,
body.morse-lab-page .morse-lab-brand {
  font-family: var(--sans);
}

.app,
.room,
.morse-lab-app {
  width: min(1500px, calc(100% - 28px));
  margin: 0 auto;
  padding: 18px 0 28px;
}

.topbar,
.morse-lab-topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  min-height: 64px;
  padding: 10px 14px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(28, 28, 28, 0.88), rgba(10, 10, 10, 0.92));
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  color: var(--orange);
  font-family: var(--sans);
}

.topbar > .brand,
.morse-lab-topbar > .morse-lab-brand {
  display: inline-grid;
  justify-self: start;
  gap: 0;
  min-width: 0;
  border-radius: 4px;
  color: inherit;
  line-height: 1;
  letter-spacing: 0;
  text-decoration: none;
  text-transform: uppercase;
}

.morse-lab-topbar > .morse-lab-brand {
  margin: 0;
  padding: 0;
  background: none;
  box-shadow: none;
}

.topbar > .brand:hover,
.morse-lab-topbar > .morse-lab-brand:hover {
  color: var(--orange);
}

.topbar > .brand:focus-visible,
.morse-lab-topbar > .morse-lab-brand:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 5px;
}

.topbar > .brand strong,
.morse-lab-topbar > .morse-lab-brand strong {
  display: block;
  margin: 0;
  color: var(--orange);
  font-size: 1.24rem;
  font-family: var(--sans);
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.06em;
}

.topbar > .brand span,
.morse-lab-topbar > .morse-lab-brand span {
  display: block;
  margin: 2px 0 0;
  color: var(--orange);
  font-size: 0.62rem;
  font-family: var(--sans);
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.17em;
}

.room-stage .hero-guide-link {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 10px;
  border: 1px solid rgba(255, 138, 0, 0.42);
  border-radius: 6px;
  background: rgba(255, 138, 0, 0.06);
  color: var(--orange);
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
}

.room-stage .hero-guide-link:hover,
.room-stage .hero-guide-link:focus-visible {
  border-color: rgba(255, 138, 0, 0.72);
  color: var(--amber);
  outline: 0;
}

.topbar-actions,
.top-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.topbar .guide-link,
.topbar .ghost-button {
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  background: linear-gradient(180deg, #1b1b1b, #0d0d0d);
  color: var(--orange);
  box-shadow: none;
}

.topbar .guide-link:hover,
.topbar .guide-link:focus-visible,
.topbar .ghost-button:hover,
.topbar .ghost-button:focus-visible {
  border-color: rgba(255, 138, 0, 0.62);
  color: var(--amber);
  outline: 0;
  transform: translateY(-1px);
}

.cw599-language {
  position: relative;
  z-index: 40;
  margin-left: 4px;
  color: var(--orange);
  font-size: 0.88rem;
  line-height: 1.2;
}

.cw599-language summary {
  box-sizing: border-box;
  min-width: 120px;
  min-height: 44px;
  padding: 0 13px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  background: linear-gradient(180deg, #1b1b1b, #0d0d0d);
  color: var(--orange);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 13px;
  list-style: none;
  cursor: pointer;
}

.cw599-language summary::-webkit-details-marker {
  display: none;
}

.cw599-language summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.cw599-language__label {
  display: block;
  padding: 0 1px;
  white-space: nowrap;
}

.cw599-language__chevron {
  display: block;
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  margin-top: -4px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
}

.cw599-language[open] .cw599-language__chevron {
  margin-top: 4px;
  transform: rotate(225deg);
}

.cw599-language__menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 154px;
  padding: 6px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  background: #111;
  box-shadow: var(--shadow);
}

.cw599-language__menu a,
.cw599-language__menu span {
  box-sizing: border-box;
  display: block;
  width: 100%;
  padding: 10px 11px;
  border-radius: 5px;
  color: var(--orange);
  text-decoration: none;
  white-space: nowrap;
}

.cw599-language__menu a:hover,
.cw599-language__menu a:focus,
.cw599-language__menu a[aria-current="page"] {
  background: rgba(255, 138, 0, 0.12);
  outline: 0;
}

.layout,
.room-shell {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 14px;
  margin-top: 14px;
  align-items: start;
}

.selector,
.tool-selector {
  position: sticky;
  top: 12px;
  align-self: start;
  overflow: hidden;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 50% 33%, rgba(255, 138, 0, 0.18), transparent 36%),
    linear-gradient(180deg, rgba(24, 24, 24, 0.96), rgba(8, 8, 8, 0.98));
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.selector-head,
.tool-selector__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px;
  border-bottom: 1px solid var(--line-2);
}

.selector-head h2,
.tool-selector__head h2 {
  margin: 0;
  color: var(--text);
  font-size: 1.28rem;
  line-height: 1.1;
  letter-spacing: 0;
}

.selector .tool-grid,
.tool-selector .tool-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 14px;
}

.selector .tool-card,
.tool-selector .tool-card {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-width: 0;
  min-height: 94px;
  padding: 12px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(28, 28, 28, 0.96), rgba(10, 10, 10, 0.96));
  color: var(--text);
  font-family: var(--sans);
  text-align: left;
  text-decoration: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition:
    border-color 0.15s ease,
    background 0.15s ease,
    box-shadow 0.15s ease,
    transform 0.15s ease;
}

.selector .tool-card:hover,
.selector .tool-card:focus-visible,
.tool-selector .tool-card:hover,
.tool-selector .tool-card:focus-visible {
  border-color: rgba(255, 138, 0, 0.58);
  color: var(--text);
  background: linear-gradient(180deg, rgba(32, 23, 13, 0.98), rgba(15, 14, 12, 0.98));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 0 28px rgba(255, 138, 0, 0.12);
  outline: 0;
  transform: translateY(-1px);
}

.selector .tool-card.is-active,
.selector .tool-card[aria-current="page"],
.tool-selector .tool-card.is-active,
.tool-selector .tool-card[aria-current="page"] {
  border-color: rgba(255, 170, 52, 0.8);
  color: var(--text);
  background: linear-gradient(180deg, rgba(45, 27, 9, 0.98), rgba(14, 10, 6, 0.98));
}

.selector .tool-icon,
.tool-selector .tool-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  overflow: hidden;
  border: 1px solid rgba(255, 151, 38, 0.36);
  border-radius: 8px;
  color: var(--orange);
  background: #080808;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 0 16px rgba(255, 138, 0, 0.08);
}

.selector .tool-icon img,
.tool-selector .tool-icon img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.96;
  filter: saturate(0.9) contrast(1.04) brightness(1.03);
  transform: scale(1.02);
}

.selector .tool-card__copy,
.tool-selector .tool-card__copy {
  min-width: 0;
  margin: 0;
  color: inherit;
}

.selector .tool-card strong,
.tool-selector .tool-card strong {
  display: block;
  margin: 0;
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0;
}

.selector .tool-card__description,
.tool-selector .tool-card__description {
  display: block;
  margin-top: 4px;
  color: var(--soft);
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: 0;
}

.selector .tool-status,
.tool-selector .tool-status {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  max-width: 100%;
  min-height: 20px;
  margin: 5px 0 0;
  padding: 2px 6px;
  border: 1px solid rgba(255, 138, 0, 0.54);
  border-radius: 999px;
  color: var(--amber);
  background: rgba(255, 138, 0, 0.08);
  font-family: var(--sans);
  font-size: 0.66rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0;
  white-space: normal;
}

.selector .arrow,
.selector .tool-card__arrow,
.tool-selector .arrow,
.tool-selector .tool-card__arrow {
  display: block;
  margin: 0;
  color: var(--orange);
  font-family: var(--sans);
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 1;
}

.tool-doc-row {
  margin: 0;
  padding: 14px 18px 16px;
  border-top: 1px solid var(--line-2);
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.86rem;
  line-height: 1.5;
}

.tool-doc-row a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--amber);
  font-weight: 700;
  text-decoration: none;
}

.tool-doc-row a::after {
  content: "\203A";
  color: var(--orange);
  font-size: 1.2em;
  line-height: 1;
}

.tool-doc-row a:hover,
.tool-doc-row a:focus-visible {
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 4px;
  outline: 0;
}

.room-stage > .tool-doc-row {
  margin-top: 14px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(24, 24, 24, 0.92), rgba(8, 8, 8, 0.96));
}

.cw-tools-wp-footer,
.cw-room-wp-footer {
  --wp--preset--spacing--40: 2rem;
  --wp--preset--spacing--50: 3rem;
  --wp--preset--spacing--60: 4rem;
  --wp--preset--spacing--70: 5rem;
  color: #111;
  background: #f7f5ef;
  font-family: var(--sans);
}

.cw-tools-wp-footer > .wp-block-group,
.cw-room-wp-footer > .wp-block-group {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding-top: var(--wp--preset--spacing--60) !important;
  padding-bottom: var(--wp--preset--spacing--50) !important;
}

@media (max-width: 1100px) {
  .layout,
  .room-shell {
    grid-template-columns: 1fr;
  }

  .selector,
  .tool-selector {
    position: static;
  }

  .selector .tool-grid,
  .tool-selector .tool-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .app,
  .room,
  .morse-lab-app {
    width: min(100% - 18px, 760px);
    padding-top: 8px;
  }

  .topbar,
  .morse-lab-topbar {
    padding: 8px 9px;
  }

  .selector .tool-grid,
  .tool-selector .tool-grid {
    grid-template-columns: 1fr;
  }

  .selector .tool-card,
  .tool-selector .tool-card {
    grid-template-columns: 46px minmax(0, 1fr) auto;
    min-height: 82px;
  }
}

@media (max-width: 560px) {
  .topbar,
  .morse-lab-topbar {
    gap: 10px;
  }

  .topbar-actions,
  .top-actions {
    gap: 6px;
  }

  .topbar .guide-link {
    width: 44px;
    padding: 0;
  }

  .cw599-language summary {
    min-width: 104px;
    padding: 0 10px;
  }
}