.aihc-shell {
  --aihc-bg: #f3f2f2;
  --aihc-surface: #ffffff;
  --aihc-text: #201f1d;
  --aihc-muted: #7a7674;
  --aihc-accent: #b68235;
  --aihc-accent-100: #fff3e4;
  --aihc-accent-800: #5a3b0a;
  --aihc-divider: rgba(32, 31, 29, 0.12);
  --aihc-danger: #b93b2e;
  --aihc-radius: 10px;
  --aihc-sp-1: 6px;
  --aihc-sp-2: 10px;
  --aihc-sp-3: 16px;
  --aihc-sp-4: 22px;
  --aihc-sp-5: 30px;
  font-family: "Inter", sans-serif;
  background: var(--aihc-bg);
  color: var(--aihc-text);
  min-height: 100%;
  padding: var(--aihc-sp-5);
  box-sizing: border-box;
}

.aihc-header {
  margin-bottom: var(--aihc-sp-4);
}

.aihc-title {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 4px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.aihc-title .material-icons-outlined {
  color: var(--aihc-accent);
  font-size: 26px;
}

.aihc-subtitle {
  font-size: 13px;
  color: var(--aihc-muted);
  margin: 0;
}

.aihc-warning {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: var(--aihc-accent-100);
  color: var(--aihc-accent-800);
  border: 1px solid rgba(182, 130, 53, 0.35);
  border-radius: var(--aihc-radius);
  padding: var(--aihc-sp-3);
  font-size: 13px;
  line-height: 1.5;
  margin-bottom: var(--aihc-sp-4);
}

.aihc-warning .material-icons-outlined {
  font-size: 18px;
  flex-shrink: 0;
  margin-top: 1px;
}

.aihc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--aihc-sp-4);
  margin-bottom: var(--aihc-sp-4);
}

@media (max-width: 900px) {
  .aihc-grid {
    grid-template-columns: 1fr;
  }
}

.aihc-card {
  background: var(--aihc-surface);
  border: 1px solid var(--aihc-divider);
  border-radius: var(--aihc-radius);
  padding: var(--aihc-sp-4);
  box-shadow: 0 1px 2px rgba(32, 31, 29, 0.05);
}

.aihc-card-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--aihc-sp-3);
}

.aihc-card-head .material-icons-outlined {
  color: var(--aihc-accent);
  font-size: 20px;
}

.aihc-card-title {
  font-size: 15px;
  font-weight: 600;
}

.aihc-card-count {
  font-size: 12px;
  color: var(--aihc-muted);
  font-weight: 400;
}

.aihc-card-desc {
  font-size: 12.5px;
  color: var(--aihc-muted);
  margin: 0 0 var(--aihc-sp-3);
  line-height: 1.5;
}

.aihc-input {
  width: 100%;
  border: 1px solid var(--aihc-divider);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13.5px;
  background: var(--aihc-bg);
  color: var(--aihc-text);
  box-sizing: border-box;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.aihc-input:focus {
  outline: none;
  border-color: var(--aihc-accent);
  background: #fff;
}

.aihc-search-results {
  margin-top: 8px;
  border: 1px solid var(--aihc-divider);
  border-radius: 8px;
  max-height: 200px;
  overflow-y: auto;
  background: #fff;
}

.aihc-search-item {
  display: block;
  padding: 8px 12px;
  font-size: 13px;
  cursor: pointer;
  color: var(--aihc-text);
  text-decoration: none;
}

.aihc-search-item:hover {
  background: var(--aihc-accent-100);
}

.aihc-search-empty {
  padding: 8px 12px;
  font-size: 12.5px;
  color: var(--aihc-muted);
}

.aihc-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.aihc-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--aihc-accent-100);
  color: var(--aihc-accent-800);
  border-radius: 999px;
  padding: 5px 8px 5px 12px;
  font-size: 12.5px;
  font-weight: 500;
}

.aihc-chip small {
  color: var(--aihc-muted);
  font-weight: 400;
}

.aihc-chip-remove {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: none;
  background: rgba(90, 59, 10, 0.12);
  color: var(--aihc-accent-800);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 12px;
  line-height: 1;
  flex-shrink: 0;
}

.aihc-chip-remove:hover {
  background: rgba(90, 59, 10, 0.22);
}

.aihc-empty-hint {
  font-size: 12.5px;
  color: var(--aihc-muted);
}

.aihc-addon {
  display: flex;
  gap: 8px;
}

.aihc-addon .aihc-input {
  flex: 1;
}

.aihc-btn {
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13.5px;
  font-weight: 600;
  font-family: inherit;
  background: var(--aihc-accent);
  color: #fff;
  cursor: pointer;
  transition: transform 0.12s ease, opacity 0.15s ease;
}

.aihc-btn:hover {
  opacity: 0.92;
}

.aihc-btn:active {
  transform: translateY(1px) scale(0.98);
}

.aihc-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.aihc-error-text {
  color: var(--aihc-danger);
  font-size: 12px;
  margin-top: 4px;
}

.aihc-tool-group {
  margin-bottom: var(--aihc-sp-4);
}

.aihc-tool-group:last-child {
  margin-bottom: 0;
}

.aihc-tool-group-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.aihc-tool-group-head .material-icons-outlined {
  font-size: 17px;
  color: var(--aihc-muted);
}

.aihc-tool-group-name {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--aihc-muted);
}

.aihc-tool-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.12s ease;
}

.aihc-tool-row:hover {
  background: var(--aihc-bg);
}

.aihc-toggle {
  position: relative;
  width: 34px;
  height: 20px;
  flex-shrink: 0;
}

.aihc-toggle input {
  position: absolute;
  inset: 0;
  opacity: 0;
  margin: 0;
  cursor: pointer;
  z-index: 1;
}

.aihc-toggle-track {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: rgba(32, 31, 29, 0.18);
  transition: background 0.18s ease;
}

.aihc-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
  transition: transform 0.18s ease;
}

.aihc-toggle input:checked ~ .aihc-toggle-track {
  background: var(--aihc-accent);
}

.aihc-toggle input:checked ~ .aihc-toggle-track ~ .aihc-toggle-thumb {
  transform: translateX(14px);
}

.aihc-tool-label {
  flex: 1;
  font-size: 13.5px;
}

.aihc-tool-days-left {
  display: inline-flex;
  align-items: center;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--aihc-accent-800);
  background: var(--aihc-accent-100);
  border-radius: 4px;
  padding: 3px 7px;
  flex-shrink: 0;
}

.aihc-footer {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: var(--aihc-sp-2);
}

.aihc-saved-msg {
  font-size: 13px;
  color: #1f7a4a;
}