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daydream/src/styles/_rail.scss
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SCSS

@use "@styles/color";
@use "@styles/var";
/* The bookmark rail.
*
* One tab per entry, in writing order, sliding out from behind the right edge
* of the book. The negative margin is what sells it: the tabs start underneath
* the page block and only their labelled ends stick out, the way a stack of
* sticky tabs would. */
.rail {
display: flex;
flex-direction: column;
min-height: 0;
//The tabs scroll within the rail; the rail never grows the page
height: 100%;
width: var.$tab-width;
margin-left: 0;
padding: 0.35rem 0;
position: relative;
z-index: 4;
}
/* The tabs say what they are; a heading would only overflow the narrow rail
* and print itself across the edge of the book. Kept for screen readers. */
.rail__title {
position: absolute;
width: 1px;
height: 1px;
overflow: hidden;
clip-path: inset(50%);
white-space: nowrap;
}
.rail__list {
flex: 1 1 auto;
min-height: 0;
overflow-y: auto;
overflow-x: hidden;
scrollbar-width: none;
display: flex;
flex-direction: column;
//The window is small and centred on where the reading is, so the current
//tab sits at eye level rather than wherever a full list would put it.
justify-content: center;
gap: 0.3rem;
padding: 0.15rem 0;
&::-webkit-scrollbar {
width: 0;
}
}
/* A tab.
*
* Only its bound edge is tucked under the page block - the rest stands clear,
* because a bookmark whose date you cannot read until you hover it is not a
* bookmark. Hovering slides it further out to bring the preview into the light.
*/
.rail__tab {
flex: 0 0 auto;
position: relative;
display: block;
width: 100%;
min-height: var.$tab-height;
margin-left: calc(-1 * var.$tab-tuck);
padding: 0.4rem 0.65rem 0.45rem calc(var.$tab-tuck + 0.55rem);
text-align: left;
color: color.$ink-soft;
background-color: color.$paper-shade;
//The shadowed strip that reads as the part still inside the book
background-image:
linear-gradient(to right, rgba(90, 68, 40, 0.22), rgba(90, 68, 40, 0.04) var.$tab-tuck, transparent calc(var.$tab-tuck + 0.5rem)),
//The dye, washing in from the outer edge
linear-gradient(to right, transparent 30%, var(--tab-wash, transparent) 100%);
//`--tab` is set per tab from the day the entry was written, so a day's
//entries share a colour and the rail reads as a run of days rather than a
//list of rows. The card is still paper - only its edge is properly dyed.
border-right: 0.45rem solid var(--tab, #{color.$paper-deep});
border-radius: 0 var.$block-radius var.$block-radius 0;
box-shadow: 0.12rem 0.15rem 0.5rem rgba(90, 54, 31, 0.22);
transition: transform var.$trans-mid ease-out, background-color var.$trans-quick, color var.$trans-quick;
&:hover,
&:focus-visible {
transform: translateX(0.45rem);
background-color: color.$paper;
color: color.$ink;
}
}
/* The entry the book is currently showing */
.rail__tab--current {
transform: translateX(0.3rem);
background-color: color.$paper;
color: color.$ink;
box-shadow: 0.12rem 0.15rem 0.5rem rgba(90, 54, 31, 0.3);
//The one being read is pulled clear of the others, and its paper is clean -
//the dye stays on the edge so the preview text is easiest to read here
background-image:
linear-gradient(to right, rgba(90, 68, 40, 0.22), rgba(90, 68, 40, 0.04) var.$tab-tuck, transparent calc(var.$tab-tuck + 0.5rem));
&:hover,
&:focus-visible {
transform: translateX(0.65rem);
}
}
/* The entry still being written */
.rail__tab--open {
box-shadow: 0.12rem 0.15rem 0.5rem rgba(90, 54, 31, 0.26), inset -0.2rem 0 0 color.$ribbon;
}
.rail__tab--current.rail__tab--open {
box-shadow: 0.12rem 0.15rem 0.6rem rgba(90, 54, 31, 0.3), inset -0.2rem 0 0 color.$ribbon;
}
.rail__date {
display: flex;
align-items: baseline;
gap: 0.4rem;
font-family: var.$font-hand;
line-height: 1.15;
white-space: nowrap;
}
.rail__day {
font-size: 1.2rem;
font-weight: 600;
color: inherit;
}
.rail__time {
font-size: 1rem;
color: color.$ink-faint;
}
/* Only visible once the tab has slid out */
.rail__preview {
display: block;
margin-top: 0.05rem;
font-size: 0.72rem;
line-height: 1.25;
color: color.$ink-faint;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
max-width: 100%;
}
.rail__empty {
font-family: var.$font-hand;
font-size: 1.05rem;
color: color.$ink-faint;
padding: 0.5rem 0.75rem;
writing-mode: vertical-rl;
white-space: nowrap;
}
/* The page nobody has written on yet.
*
* Shaped like a tab, because that is what it becomes the moment something is
* written on it - but a short one, drawn in outline: there is no date to stamp
* on it and no day for it to take a dye from. It stands in the stack directly
* after the last tab, which is where its own tab will be.
*/
.rail__new {
flex: 0 0 auto;
align-self: flex-start;
display: flex;
align-items: center;
justify-content: center;
width: 4.75rem;
min-height: 1.9rem;
//The list's own gap sets it off from the last tab
margin-left: calc(-1 * var.$tab-tuck);
padding-left: var.$tab-tuck;
color: color.$ink-faint;
background-color: rgba(251, 241, 220, 0.5);
//No left edge: like a tab, it comes out from under the page block
border: 1px dashed color.$paper-deep;
border-left: 0;
border-radius: 0 var.$block-radius var.$block-radius 0;
transition: transform var.$trans-mid ease-out, background-color var.$trans-quick, color var.$trans-quick;
&:hover,
&:focus-visible {
transform: translateX(0.45rem);
background-color: color.$paper;
color: color.$ink-soft;
}
}
/* The book is open at that page, so the + is doing a bookmark's job - and wears
* the same ribbon the tab of the page being written on would. */
.rail__new--current {
transform: translateX(0.3rem);
color: color.$ink-soft;
background-color: color.$paper;
border-style: solid;
border-color: color.$paper-edge;
box-shadow: 0.12rem 0.15rem 0.5rem rgba(90, 54, 31, 0.22), inset -0.2rem 0 0 color.$ribbon;
&:hover,
&:focus-visible {
transform: translateX(0.65rem);
}
}
/* The rail shows a few tabs either side of where the reading is. These two
* say the book carries on past them, and walk the window along. */
.rail__more {
flex: 0 0 auto;
align-self: flex-start;
margin-left: 0;
padding: 0.3rem 0.4rem;
font-size: 0.7rem;
color: color.$ink-soft;
border-radius: var.$block-radius;
&:hover {
color: color.$ink;
background-color: rgba(254, 244, 225, 0.6);
}
}