.citizen-toc { font-size: 0.875rem; line-height: var( --line-height-xs ); &__card { display: flex; flex-direction: column; gap: var( --space-xs ); } &__top { &::before { width: 0.875rem; height: 0.875rem; content: ''; filter: var( --filter-invert ); opacity: var( --opacity-icon-base ); } &:hover::before { opacity: var( --opacity-icon-base--hover ); } &:active::before { opacity: var( --opacity-icon-base--hover ); } } &__header { color: var( --color-base--subtle ); letter-spacing: 0.05em; } &__contents { margin-left: 1px; } &__contents, &__list { margin: 0; list-style: none; border-left: 1px solid var( --border-color-base ); .citizen-toc__link { border-top-left-radius: 0; border-bottom-left-radius: 0; } } &__list { margin-left: var( --space-xs ); } &__link { display: flex; gap: var( --space-xs ); padding-top: var( --space-xs ); padding-bottom: var( --space-xs ); font-weight: var( --font-weight-medium ); color: var( --color-base ); border-radius: var( --border-radius--small ); &.citizen-toc__top { height: 0; padding-top: 0; padding-bottom: 0; visibility: hidden; opacity: 0; transition-property: opacity, height, padding; } &:hover { background-color: var( --background-color-quiet--hover ); } &:active { background-color: var( --background-color-quiet--active ); } &:hover, &:focus { text-decoration: none; } } &__indicator { flex-shrink: 0; width: 3px; margin-left: -2px; border-radius: var( --border-radius--pill ); } &__text { display: flex; gap: var( --space-xs ); } &__numb { display: none; color: var( --color-base--subtle ); } &__listItem { &--active { > .citizen-toc__link { color: var( --color-primary ); .citizen-toc__indicator { background-color: var( --color-primary ); } } } } } // Sticky header styles .citizen-body-header--sticky { .citizen-toc__top.citizen-toc__link { height: 2rem; // 1rem text + 1rem padding padding-top: var( --space-xs ); padding-bottom: var( --space-xs ); visibility: visible; opacity: 1; } } // Move down when site header is hidden @media ( max-width: ( @width-breakpoint-tablet ) ) { .citizen-toc { transition: var( --transition-menu ); transition-property: transform; will-change: transform; } .citizen-scroll--down .citizen-toc { transform: translateY( var( --header-size ) ); } } @media ( max-width: ( @width-breakpoint-desktop - 1px ) ) { .citizen-toc { position: fixed; right: 0; bottom: ~'calc( var( --header-size ) + var( --space-xs ) )'; z-index: @z-index-page-header; // Allow click through pointer-events: none; &__card { // This is not bulletproof since it will get covered by page header // in extremely short height. but it should be good for now max-height: ~'calc( var( --header-card-maxheight ) - 8rem )'; padding: var( --space-md ); margin: var( --space-xs ); overflow: auto; overscroll-behavior: contain; -webkit-user-select: none; user-select: none; .citizen-card; .citizen-card-hide( bottom right, '', false ); .citizen-card-transition(); } } #citizen-toc { &__checkbox:checked { ~ .citizen-toc__card { .citizen-card-show( false ); } } &__buttonCheckbox { position: absolute; right: 0; bottom: 0; display: grid; place-content: center; width: 2.5rem; height: 2.5rem; margin: var( --space-xs ); pointer-events: auto; background-color: var( --color-surface-1 ); border-radius: var( --border-radius--medium ); box-shadow: var( --box-shadow-dialog ); transition: var( --transition-menu ); transition-property: transform; transform: none; transform-origin: bottom right; .citizen-ui-icon { width: 1rem; height: 1rem; } // The hover state colors are not great but it will do for now &:hover { background-color: var( --color-surface-3 ); } &:active { background-color: var( --color-surface-1 ); } } } // Hide dismiss button when JS is enabled // Since clicking outside will dismiss ToC already .client-js { #citizen-toc { &__checkbox:checked { // Fake seamless transition ~ #citizen-toc__buttonCheckbox { pointer-events: none; background-color: transparent; box-shadow: none; transform: scale( 1.2 ); .citizen-ui-icon { display: none; } } } } } } @media ( min-width: @width-breakpoint-desktop ) { .citizen-toc { grid-area: toc; &__card { --toc-margin-top: var( --space-xs ); position: -webkit-sticky; position: sticky; top: var( --toc-margin-top ); max-height: ~'calc( 100vh - var( --toc-margin-top ) - var( --space-md ) )'; overflow-y: auto; overscroll-behavior: contain; } } // Hide button in desktop viewport #citizen-toc__buttonCheckbox { display: none; } // Sticky header styles .citizen-body-header--sticky { .citizen-toc__card { --toc-margin-top: ~'calc( var( --header-size ) + var( --space-xxl ) )'; // Sticky header is shorter without buttons @media ( max-height: 800px ) { --toc-margin-top: ~'calc( var( --header-size ) + var( --space-md ) )'; } } } }