/* =============================================================================
   ReLeaf: Wet Lab Notebook
   -----------------------------------------------------------------------------
   Laid out from the wet lab team's "Notebook Layout Design" (4 October 2026),
   stripped back on their "Notebook wiki Layout Design" (17 October 2026).

     .cal    the season calendar: eleven month columns, one row per track,
             each track with its icon. It fits a laptop screen whole and a
             phone without scrolling sideways (months shrink to initials).
     .evo    "How our work evolved", a fold under the calendar: the four
             phases as a band on the same month scale, then one card each.
     .mtabs  one month at a time, a segmented control like the one on Plants.
     .reader the month's PDF, full width; the plant notebook uses it too.

   The track hues are a picture of the calendar and are declared once, here.
   Everything else comes from tokens.css. White ground, no rules for
   decoration; the rounded grey card is the Plants page's.
   ========================================================================== */

.icosprite { position: absolute; width: 0; height: 0; overflow: hidden; }

/* the notebook is a reference page: tables and the calendar take the full
   body width, prose keeps its measure */
.nb .pagebody { max-width: 58rem; }
.nb .pagebody > p,
.nb .sec > p,
.nb .intro__text p { max-width: var(--measure); }

/* ---- track hues ---- */
.nb {
  --t-setup:   #6b6b6b;
  --t-clone:   #23684a;
  --t-protein: #3f8a5f;
  --t-plant:   #5f8a22;
  --t-hydro:   #2f7f93;
  --t-reactor: #3f5468;
  --t-measure: #6b5ca5;
  --t-design:  #9a3d22;
  --t-model:   #92610c;
  --t-hp:      #a3557f;
  --t-wiki:    #525252;
  --card: #f5f5f7;
}
.nb [data-track="setup"],   .cal__row--setup   { --hue: var(--t-setup); }
.nb [data-track="clone"],   .cal__row--clone   { --hue: var(--t-clone); }
.nb [data-track="protein"], .cal__row--protein { --hue: var(--t-protein); }
.nb [data-track="plant"],   .cal__row--plant   { --hue: var(--t-plant); }
.nb [data-track="hydro"],   .cal__row--hydro   { --hue: var(--t-hydro); }
.nb [data-track="reactor"], .cal__row--reactor { --hue: var(--t-reactor); }
.nb [data-track="measure"], .cal__row--measure { --hue: var(--t-measure); }
.nb [data-track="design"],  .cal__row--design  { --hue: var(--t-design); }
.nb [data-track="model"],   .cal__row--model   { --hue: var(--t-model); }
.nb [data-track="hp"],      .cal__row--hp      { --hue: var(--t-hp); }
.nb [data-track="wiki"],    .cal__row--wiki    { --hue: var(--t-wiki); }

/* a track glyph in running text and tables */
.tk { width: 1.05em; height: 1.05em; flex: 0 0 auto; color: var(--hue, var(--leaf-700)); }

/* ================================================================ OPENING = */

.intro { display: grid; gap: var(--sp-6); margin-top: 0; }
@media (min-width: 900px) {
  .intro { grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: start; }
}
.intro__text > :first-child { margin-top: 0; }
.intro__text p + p { margin-top: var(--sp-4); }


/* =============================================================== CALENDAR = */

.cal-fig { margin-top: var(--sp-5); }
.cal {
  --cal-lab: 15.5rem;
  padding: var(--sp-5) var(--sp-5) var(--sp-3);
  border-radius: 14px;
  background: var(--white);
  box-shadow: 0 0 0 1px var(--gray-200);
}
.cal__box { position: relative; }   /* holds the .visually-hidden bar labels in */

.cal__grid {
  display: grid;
  grid-template-columns: var(--cal-lab) repeat(11, minmax(0, 1fr));
  align-items: center;
  row-gap: .28rem;
}
.cal__corner { grid-column: 1; }

.cal__m {
  grid-row: 1; padding: 0 0 var(--sp-2);
  font: 650 var(--text-xs)/1.25 var(--font-body);
  color: var(--gray-500); text-align: center; letter-spacing: .02em; z-index: 1;
}
.cal__m i { display: block; font-style: normal; font-weight: 400; font-size: .6875rem; color: var(--gray-500); }
.cal__ms { display: none; }
.cal__m--now { color: var(--leaf-700); }
.cal__m--now i { color: var(--leaf-700); font-weight: 600; }

/* the grid has no explicit rows, so -1 would mean line 1: count them instead */
.cal__rule {
  grid-column: 2 / -1; grid-row: 2 / span 11; height: 100%;
  background: linear-gradient(to right, var(--gray-200) 1px, transparent 1px) 0 0 / calc(100% / 11) 100% repeat-x;
}
.cal__now { grid-row: 1 / span 12; align-self: stretch; height: 100%; background: var(--leaf-50); border-radius: 6px; }

.cal__lab {
  grid-column: 1;
  display: flex; align-items: center; gap: .6rem;
  padding: 0 var(--sp-3) 0 0;
  font: 550 var(--text-sm)/1.2 var(--font-body);
  color: var(--black);
  min-height: 1.85rem;
}
.cal__ico {
  flex: 0 0 auto; display: grid; place-items: center;
  width: 1.7rem; height: 1.7rem; border-radius: 7px;
  background: var(--hue); color: var(--white);
  box-shadow: inset 0 0 0 .5px rgb(0 0 0 / .08);
}
.cal-fig .cal svg { border: 0; border-radius: 0; background: none; }   /* page.css frames every .fig svg */
.cal__ico svg { width: 1.05rem; height: 1.05rem; }

.cal__bar { height: .95rem; border-radius: 999px; background: var(--hue); z-index: 1; }
.cal__bar--light { background: color-mix(in srgb, var(--hue) 24%, white); }

.cal__key {
  display: flex; flex-wrap: wrap; gap: .3rem 1.2rem;
  margin: var(--sp-4) 0 0; padding-left: var(--cal-lab);
  font-size: var(--text-xs); color: var(--gray-600);
}
.cal__key span { display: inline-flex; align-items: center; gap: .45rem; }
.cal__key i { width: 1.4rem; height: .55rem; border-radius: 999px; background: var(--gray-600); }
.cal__key i.is-light { background: color-mix(in srgb, var(--gray-600) 24%, white); }

.cal-fig figcaption { max-width: var(--measure); }

/* phone: the names shrink, the months become initials, nothing scrolls */
@media (max-width: 640px) {
  .cal { --cal-lab: 7.6rem; padding: var(--sp-4) var(--sp-3) var(--sp-2); }
  .cal__lab { gap: .4rem; font-size: .6875rem; font-weight: 550; line-height: 1.15; padding-right: .4rem; min-height: 1.6rem; }
  .cal__ico { width: 1.3rem; height: 1.3rem; border-radius: 5px; }
  .cal__ico svg { width: .85rem; height: .85rem; }
  .cal__mf { display: none; }
  .cal__ms { display: inline; }
  .cal__m:first-of-type i { display: none; }
  .cal__m i { font-size: .5625rem; }
  .cal__bar { height: .7rem; }
  .cal__key { padding-left: 0; }
}

/* ---- how our work evolved ---- */
.evo { margin: var(--sp-4) calc(-1 * var(--sp-5)) 0; border-top: 1px solid var(--gray-100); }
.evo > summary {
  display: flex; align-items: center; gap: .6rem;
  padding: var(--sp-3) var(--sp-5) var(--sp-2);
  list-style: none; cursor: pointer;
  font: 600 var(--text-sm)/1.3 var(--font-body); color: var(--leaf-900);
}
.evo > summary::-webkit-details-marker { display: none; }
.evo > summary:focus-visible { outline: 2px solid var(--leaf-500); outline-offset: -2px; border-radius: 8px; }
.evo__mark {
  width: 1.15rem; height: 1.15rem; border-radius: 50%; background: var(--leaf-100); position: relative;
  transition: background-color .2s ease;
}
.evo__mark::before, .evo__mark::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: .5rem; height: 1.6px; margin: -.8px 0 0 -.25rem;
  background: var(--leaf-700); border-radius: 1px; transition: transform .2s ease;
}
.evo__mark::after { transform: rotate(90deg); }
.evo[open] .evo__mark { background: var(--leaf-700); }
.evo[open] .evo__mark::before, .evo[open] .evo__mark::after { background: var(--white); }
.evo[open] .evo__mark::after { transform: rotate(0deg); }
.evo > summary:hover .evo__mark { background: var(--leaf-200); }
.evo[open] > summary:hover .evo__mark { background: var(--leaf-900); }

.evo__body { padding: var(--sp-2) var(--sp-5) var(--sp-4); }
.evo[open] .evo__body { animation: evo-in .3s ease both; }
@keyframes evo-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

.evo__band { display: grid; grid-template-columns: var(--cal-lab) minmax(0, 1fr); }
.evo__track { position: relative; height: 2.1rem; }
.evo__seg {
  position: absolute; top: 0; bottom: 0;
  display: flex; align-items: center; gap: .4rem; padding: 0 .55rem;
  border-radius: 8px; overflow: hidden;
  font-size: .75rem; font-weight: 600; white-space: nowrap;
  box-shadow: inset 0 0 0 2px var(--white);
}
.evo__seg b { font-weight: 700; }
.evo__seg span { overflow: hidden; text-overflow: ellipsis; }
.evo__seg--1, .evo__card--1 { --ph: #e3f0e8; --ph-ink: #14402b; }
.evo__seg--2, .evo__card--2 { --ph: #b9d9c6; --ph-ink: #14402b; }
.evo__seg--3, .evo__card--3 { --ph: #23684a; --ph-ink: #ffffff; }
.evo__seg--4, .evo__card--4 { --ph: #14402b; --ph-ink: #ffffff; }
.evo__seg { background: var(--ph); color: var(--ph-ink); }

.evo__cards {
  list-style: none; margin: var(--sp-4) 0 0; padding: 0;
  display: grid; gap: var(--sp-3);
}
@media (min-width: 560px) { .evo__cards { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1240px) { .evo__cards { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.evo__card { padding: var(--sp-4); border-radius: 14px; background: var(--card); }
.evo__no {
  display: flex; align-items: center; gap: .5rem; margin: 0;
  font-size: .75rem; font-weight: 650; color: var(--gray-600);
}
.evo__no::before { content: ""; width: .7rem; height: .7rem; border-radius: 3px; background: var(--ph); box-shadow: inset 0 0 0 1px rgb(0 0 0 / .06); }
.evo__no span { margin-left: auto; font-weight: 500; color: var(--gray-500); }
.evo__card h3 { margin: .4rem 0 .35rem; font-size: 1rem; line-height: 1.3; letter-spacing: -.01em; }
.evo__card p:last-child { margin: 0; font-size: var(--text-xs); line-height: 1.55; color: var(--gray-700); }

@media (max-width: 640px) {
  .evo { margin-left: calc(-1 * var(--sp-3)); margin-right: calc(-1 * var(--sp-3)); }
  .evo > summary, .evo__body { padding-left: var(--sp-3); padding-right: var(--sp-3); }
  .evo__seg span { display: none; }
  .evo__seg { justify-content: center; padding: 0; }
}

/* ============================================================ MONTH TABS = */

.mtabs { margin-top: var(--sp-6); }
.mtabs__bar {
  position: sticky; top: calc(var(--nav-h) + .5rem); z-index: 6;
  display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: .2rem;
  padding: .3rem;
  background: rgb(240 240 243 / .86);
  -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid rgb(0 0 0 / .05); border-radius: 16px;
}
.mtabs:not(.is-ready) > .mtabs__bar { display: none; }
.mtabs__tab {
  position: relative; z-index: 1;
  appearance: none; border: 0; background: none; cursor: pointer; font: inherit;
  display: grid; justify-items: center; gap: .1rem;
  padding: .45rem .2rem; border-radius: 12px;
  color: var(--gray-600); transition: color .25s ease;
}
.mtabs__tab:hover { color: var(--gray-700); }
.mtabs__tab[aria-selected="true"] { color: #1d1d1f; }
.mtabs__tab:focus-visible { outline: 2px solid var(--leaf-500); outline-offset: 1px; }
.mtabs__l { font-size: .95rem; font-weight: 600; letter-spacing: -.01em; }
.mtabs__ls { display: none; }
.mtabs__ink {
  position: absolute; top: .3rem; bottom: .3rem; left: 0; width: 0; z-index: 0;
  background: var(--white); border-radius: 12px;
  box-shadow: 0 1px 2px rgb(0 0 0 / .06), 0 3px 12px -2px rgb(0 0 0 / .12);
  transition: transform .38s cubic-bezier(.3, .7, .2, 1), width .38s cubic-bezier(.3, .7, .2, 1);
}
@media (max-width: 760px) {
  .mtabs__lf { display: none; }
  .mtabs__ls { display: inline; }
  .mtabs__l { font-size: .875rem; }
}

/* ---- one month ---- */
.mpanel { padding-top: var(--sp-5); scroll-margin-top: calc(var(--nav-h) + 5rem); }
.mpanel[hidden] { display: none; }
.mtabs.is-ready > .mpanel:not([hidden]) { animation: mpanel-in .3s ease both; }
@keyframes mpanel-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.mtabs.is-ready > .mpanel > .mpanel__h {
  position: absolute; width: 1px; height: 1px; margin: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}
.mtabs:not(.is-ready) > .mpanel + .mpanel { margin-top: var(--sp-7); }

.mpanel__head {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--sp-2) var(--sp-4);
}
.mpanel__range { margin: 0; font: 650 1.25rem/1.25 var(--font-display); letter-spacing: -.015em; color: var(--black); }
.mpanel__facts { margin: 0; font-size: var(--text-sm); color: var(--gray-600); font-variant-numeric: tabular-nums; }
.mpanel__links { margin: 0 0 0 auto; display: flex; gap: var(--sp-2); }
.btn {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .42rem .85rem; border-radius: 999px;
  background: var(--card); color: var(--leaf-900);
  font-size: var(--text-xs); font-weight: 600; text-decoration: none;
  transition: background-color .2s ease;
}
.btn:hover { background: var(--leaf-100); }
.btn:focus-visible { outline: 2px solid var(--leaf-500); outline-offset: 2px; }
.btn small { font-weight: 500; color: var(--gray-500); font-size: .6875rem; }

/* the month's highlights, each with its track */
.hl { list-style: none; margin: var(--sp-5) 0 0; padding: 0; display: grid; gap: .45rem; }
.hl li { display: flex; gap: .6rem; align-items: flex-start; font-size: var(--text-sm); line-height: 1.5; }
.hl .tk { margin-top: .2em; }
.see {
  display: inline-block; margin-left: .3rem; padding: 0 .5rem;
  border-radius: 999px; background: var(--leaf-50);
  font-size: .75rem; font-weight: 600; line-height: 1.6; color: var(--leaf-700); text-decoration: none;
  white-space: nowrap;
}
.see::after { content: " \2192"; }
.see:hover { background: var(--leaf-100); }

/* ---- the reader ---- */
.reader { margin-top: var(--sp-5); }
.pdfbox { border-radius: 14px; background: var(--card); overflow: hidden; }
.pdfbox iframe { display: block; width: 100%; height: 40rem; border: 0; background: var(--card); }
/* phone browsers do not draw a PDF inside a page: the Open PDF and
   Download links take over, and the file never loads behind an empty box */
@media (max-width: 640px) { .pdfbox { display: none; } }

/* ---- the waiting slot ---- */
.slot {
  display: grid; place-items: center;
  min-height: 9rem; padding: var(--sp-5);
  border-radius: 14px; background: var(--card);
  text-align: center;
}
.slot p { margin: 0; max-width: 46ch; font-size: var(--text-sm); text-align: left; }
.slot b { display: block; margin-bottom: var(--sp-2); color: var(--black); }
.mpanel .slot { margin-top: var(--sp-4); }



@media (prefers-reduced-motion: reduce) {
  .mtabs__ink, .evo__mark::after { transition: none; }
  .mtabs.is-ready > .mpanel:not([hidden]), .evo[open] .evo__body { animation: none; }
}