/* Header explorer v1.0: neutral geometry, semantic colours retained. */
.header-explorer { max-width: 1480px; margin: auto; padding: 18px 24px 0; color: var(--ink); font: 15px/1.4 "Segoe UI",sans-serif; }
.explorer-intro { display: flex; flex-wrap: wrap; gap: 8px 24px; align-items: baseline; }
.explorer-intro span, .explorer-description { color: var(--muted); font-size: 13px; }
.explorer-options { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 8px; margin: 12px 0 8px; }
.explorer-options button { min-height: 44px; padding: 9px 12px; text-align: left; font: inherit; font-size: 14px; color: var(--blue); background: white; border: 1px solid #abc1d2; border-radius: 7px; cursor: pointer; }
.explorer-options button[aria-pressed="true"] { color: white; background: var(--blue); border-color: var(--blue); }
.v6-layout { grid-template-areas: "toolbar tools" "main settings"; grid-template-rows: auto auto; }
.v6-layout.is-settings-closed { grid-template-columns: minmax(0,1fr) 300px; grid-template-areas: "toolbar tools" "main main"; }
.v6-view-menu { display: flex; flex-direction: column; align-items: stretch; gap: 0; padding: 0; overflow: hidden; background: white; border: 1px solid var(--line); }
.header-title-block { display: flex; gap: 16px; align-items: baseline; padding: 14px 18px; color: white; background: var(--blue); }
.v6-rating-heading { display: block; font-size: 24px; }
.header-title-block p { margin: 0; color: #d7e5f1; font-size: 13px; }
.v6-view-tabs { display: grid; grid-template-columns: 1fr 1fr 1fr 1.35fr; gap: 8px; padding: 12px; background: white; border-radius: 0; }
.v6-view-tabs button { display: flex; flex-direction: row; justify-content: center; align-items: center; gap: 9px; min-height: 66px; padding: 9px; color: var(--blue); border: 1px solid var(--line); border-radius: 8px; font-size: 18px; font-weight: 600; white-space: normal; }
.v6-view-tabs button[aria-selected="true"] { background: var(--surface-blue); border-color: var(--blue); box-shadow: inset 0 -3px var(--blue); }
.v6-view-tabs svg { display: block; flex: 0 0 30px; width: 30px; height: 30px; }
.v6-view-tabs .v6-mobile-label { display: none; }
.v6-view-tabs .v6-desktop-label { display: inline; }
#v6-term-menu { margin-left: 8px; border-style: dashed; }
.header-tools { grid-area: tools; display: flex; flex-direction: column; align-self: stretch; justify-content: center; gap: 12px; padding: 16px 12px; background: var(--surface-soft); border: 1px solid var(--line); border-radius: 10px; }
.tools-caption { color: var(--muted); font-size: 13px; }
.header-tools .v6-panel-toggles { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 0; }
.header-tools button { display: flex; justify-content: center; min-height: 48px; font-size: 15px; padding: 8px; color: var(--blue); background: white; border: 1px solid #a8c0d2; }
.header-tools button[aria-expanded="true"] { background: var(--blue); color: white; border-color: var(--blue); box-shadow: none; }
#v6-settings-panel .v6-fields { margin-top: 10px; }
.v6-mobile-utilities:empty { display: none; }
html[data-header-layout="side"] .v6-view-menu { display: grid; grid-template-columns: 150px minmax(0,1fr); }
html[data-header-layout="side"] .header-title-block { display: flex; flex-direction: column; justify-content: center; gap: 7px; padding: 14px; background: var(--surface-soft); color: var(--blue); border-right: 3px solid var(--blue); }
html[data-header-layout="side"] .header-title-block p { color: var(--muted); }
html[data-header-layout="side"] .v6-view-tabs button { flex-direction: column; min-height: 92px; font-size: 17px; gap: 7px; }
html[data-header-layout="reverse"] .v6-view-tabs { order: -1; padding: 0 0 12px; background: var(--page); }
html[data-header-layout="reverse"] .v6-view-menu { border: 0; border-radius: 0; background: transparent; }
html[data-header-layout="reverse"] .v6-view-tabs button { background: white; min-height: 84px; flex-direction: column; }
html[data-header-layout="reverse"] .v6-view-tabs button[aria-selected="true"] { background: var(--surface-blue); }
html[data-header-layout="reverse"] .header-title-block { border-radius: 9px; background: white; color: var(--ink); border-left: 5px solid var(--blue); }
html[data-header-layout="reverse"] .header-title-block p { color: var(--muted); }
html[data-header-icons="badge"] .v6-view-tabs svg { box-sizing: content-box; padding: 8px; background: #dceaf5; border-radius: 10px; }
html[data-header-icons="bold"] .v6-view-tabs svg { stroke-width: 2.2; }
@media (max-width: 1100px) {
  .v6-view-tabs button { flex-direction: column; font-size: 16px; min-height: 88px; }
  html[data-header-layout="side"] .v6-view-menu { grid-template-columns: 130px minmax(0,1fr); }
  html[data-header-layout="side"] .v6-view-tabs { gap: 4px; padding: 8px; }
  html[data-header-layout="side"] .v6-view-tabs button { font-size: 14px; padding: 5px; }
}
@media (max-width: 899px) {
  .v6-layout, .v6-layout.is-settings-closed { grid-template-columns: minmax(0,1fr); grid-template-areas: "toolbar" "tools" "settings" "main"; grid-template-rows: auto; }
  .header-tools { flex-direction: row; justify-content: flex-end; align-items: center; padding: 8px; }
  .header-tools .v6-panel-toggles { width: min(100%,290px); }
}
@media (max-width: 600px) {
  .header-explorer { padding: 12px 8px 0; }
  .explorer-options { grid-template-columns: 1fr 1fr; }
  .explorer-options button { font-size: 12px; }
  .header-title-block { padding: 12px; flex-wrap: wrap; gap: 3px 12px; }
  .v6-rating-heading { font-size: 22px; }
  .v6-view-tabs { gap: 4px; padding: 6px; grid-template-columns: 1fr 1fr 1fr 1.3fr; }
  .v6-view-tabs button { min-height: 80px; gap: 6px; font-size: 14px; padding: 5px 2px; }
  .v6-view-tabs svg { width: 26px; height: 26px; flex-basis: 26px; }
  #v6-term-menu { margin-left: 3px; }
  html[data-header-layout="side"] .v6-view-menu { grid-template-columns: 1fr; }
  html[data-header-layout="side"] .header-title-block { flex-direction: row; align-items: baseline; justify-content: flex-start; border-right: 0; border-left: 4px solid var(--blue); }
  html[data-header-icons="badge"] .v6-view-tabs svg { padding: 5px; }
  .tools-caption { display: none; }
  .header-tools button { min-height: 44px; font-size: 14px; }
}