/* ==========================================================================
   Tools page (resources.html, built by _build/resources_page.py).
   A card-catalogue drawer (moodboard pin 29) beside a ring binder (pin 56).
   Each card's tab sticks up above its own top edge; later cards sit in
   front of earlier ones, so the drawer reads back to front. Pulling a card
   (resources.js) lifts it and turns the binder to its page.
   Without JS every binder page is shown: `.rs-js` gates the hidden state.
   ========================================================================== */

.rs-desk { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(28px, 4vw, 56px); align-items: start; }

/* ---- the drawer ---------------------------------------------------------- */
.rs-drawer { position: relative; padding-top: 30px; }
.rs-cards { list-style: none; margin: 0; padding: 0; display: grid; }
.rs-card {
  --tab-w: 38%;
  position: relative; height: 50px; margin-top: -14px;
  /* back cards are narrower, so the drawer recedes */
  margin-inline: calc((var(--n) - var(--i)) * 3px);
  border: 1px solid var(--text); border-bottom: 0; border-radius: 9px 9px 0 0;
  background: var(--surface);
  transition: transform .4s var(--ease);
}
.rs-card:first-child { margin-top: 0; }
.rs-card:last-child { height: 64px; }
.rs-card.is-out { transform: translateY(-12px); }
.rs-card:not(.is-out):has(.rs-tab:hover) { transform: translateY(-4px); }

/* tabs: a trapezoid outlined in ink, built from an ink shape with a paper shape 1px inside it */
.rs-tab {
  --clip: polygon(9px 0, calc(100% - 9px) 0, 100% 100%, 0 100%);
  position: absolute; bottom: calc(100% - 1px); width: var(--tab-w); height: 25px; padding: 0;
  border: 0; background: var(--text); clip-path: var(--clip); color: var(--text); font: inherit; cursor: pointer;
}
.rs-tab::before { content: ""; position: absolute; inset: 1px 1px 0; background: var(--surface); clip-path: var(--clip); transition: background var(--fast); }
.rs-card--l .rs-tab { left: 3%; }
.rs-card--m .rs-tab { left: 31%; }
.rs-card--r .rs-tab { right: 3%; }
.rs-tab > span { position: relative; }
button.rs-tab { display: flex; align-items: center; gap: 10px; padding: 1px 18px 0; text-align: left; }
.rs-tab__n { font-family: var(--font-mono); font-size: 11px; color: var(--text-3); }
.rs-tab__t { flex: 1; min-width: 0; text-align: right; font-size: 13.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
button.rs-tab:hover::before { background: color-mix(in srgb, var(--surface) 88%, var(--text)); }
button.rs-tab:focus-visible { outline: none; }
button.rs-tab:focus-visible::before { background: color-mix(in srgb, var(--surface) 80%, var(--text)); }
.rs-card.is-out .rs-tab::before { background: var(--sun); }
.rs-card.is-out .rs-tab__n { color: var(--text); }

/* section dividers: solid black tabs, a letter and a count */
.rs-card--div { --tab-w: 24%; }
.rs-tab--div { display: flex; align-items: center; justify-content: space-between; padding: 1px 20px 0; cursor: default; font-family: var(--font-mono); font-size: 12px; color: var(--ink); }
.rs-tab--div::before { display: none; }
.rs-tab--div b { font-weight: 500; }

/* the drawer front: a deeper face with a label holder and a pull */
.rs-drawer__front {
  position: relative; z-index: 2; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px;
  height: 104px; margin: -2px -10px 0; padding: 0 22px;
  border: 1px solid var(--text); border-radius: 3px; background: #E9E5DB;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .6), 0 22px 40px -28px rgba(0, 0, 0, .45);
}
.rs-drawer__label {
  grid-column: 2; padding: 6px 14px; border: 1px solid var(--text); border-radius: 3px; background: var(--sun);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .02em; white-space: nowrap;
}
.rs-drawer__pull { position: absolute; left: 50%; bottom: 16px; width: 64px; height: 12px; translate: -50% 0; border: 1px solid var(--text); border-top: 0; border-radius: 0 0 14px 14px; }
.rs-drawer__count { grid-column: 3; justify-self: end; font-family: var(--font-mono); font-size: 11px; color: var(--text-3); }

/* ---- the binder ---------------------------------------------------------- */
.rs-binder { position: relative; padding-left: 22px; }
/* the page under this one, a little offset */
.rs-binder::before { content: ""; position: absolute; inset: 8px -6px -8px 28px; border: 1px solid var(--line-2); background: var(--surface-2); }
.rs-rings { position: absolute; left: 0; top: 0; bottom: 0; z-index: 2; display: flex; flex-direction: column; justify-content: space-around; pointer-events: none; }
.rs-rings i {
  display: block; width: 40px; height: 20px; margin-left: 10px; border: 3px solid #A7ABB0; border-radius: 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .7), 0 2px 3px rgba(0, 0, 0, .18);
}
.rs-pages { position: relative; }
.rs-page {
  position: relative; padding: 0 clamp(22px, 3vw, 36px) clamp(26px, 3vw, 34px) clamp(46px, 5vw, 60px);
  border: 1px solid var(--line-2); background: #FBFAF6;
  background-image: radial-gradient(circle at 24px 50%, var(--ink) 0 7px, rgba(var(--ov), .28) 7px 8px, transparent 8.5px);
  background-size: 48px 33.33%; background-repeat: repeat-y;
}
.rs-page + .rs-page { margin-top: 18px; }
.rs-js .rs-page + .rs-page { margin-top: 0; }
.rs-js .rs-page[data-off] { display: none; }
.rs-js .rs-page:not([data-off]) { animation: rs-turn .45s var(--ease); }
@keyframes rs-turn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.rs-page__tabs { display: grid; grid-template-columns: 1fr 1fr; margin: 0 calc(-1 * clamp(22px, 3vw, 36px)) 26px 0; border-bottom: 1px solid var(--line-2); }
.rs-page__tabs span { padding: 10px 14px; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-2); }
.rs-page__tabs span + span { border-left: 1px solid var(--line-2); text-align: right; }
.rs-page__k { margin: 0 0 6px; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--text-3); }
.rs-page__h { margin: 0 0 20px; font-family: var(--font-display); font-weight: 400; font-size: clamp(28px, 2.6vw, 38px); line-height: 1.02; letter-spacing: -.02em; }
.rs-page__steps { list-style: none; margin: 0 0 22px; padding: 0; display: grid; gap: 11px; font-family: var(--font-mono); font-size: 13px; line-height: 1.55; color: var(--text); }
.rs-page__steps li { display: grid; grid-template-columns: 26px 1fr; }
.rs-page__steps li > span { color: var(--text-3); }
.rs-page__meta { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 0 0 20px; }
.rs-page__meta div { display: grid; grid-template-columns: auto 1fr; align-items: baseline; gap: 10px; }
.rs-page__meta dt { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); }
.rs-page__meta dd { margin: 0; padding-bottom: 3px; border-bottom: 1px solid var(--text); font-family: var(--font-mono); font-size: 13px; }
/* the sticky note */
.rs-page__note {
  max-width: 270px; margin: 0 0 24px auto; padding: 14px 16px 18px; rotate: -2deg;
  background: #BCD6EE; color: #1F2A44; font-family: var(--font-display); font-style: italic; font-size: 17px; line-height: 1.35;
  box-shadow: 0 1px 1px rgba(0, 0, 0, .08), 0 14px 22px -16px rgba(0, 0, 0, .45);
}
.rs-page__go { justify-self: start; }

/* ---- small screens ------------------------------------------------------- */
@media (max-width: 900px) {
  .rs-desk { grid-template-columns: 1fr; }
  .rs-card { --tab-w: 60%; height: 44px; margin-inline: calc((var(--n) - var(--i)) * 1.5px); }
  .rs-card--div { --tab-w: 34%; }
  .rs-card--l .rs-tab { left: 3%; }
  .rs-card--m .rs-tab { left: 20%; }
  .rs-card--r .rs-tab { right: 3%; }
  .rs-tab__t { font-size: 12.5px; }
  .rs-drawer__front { height: 84px; margin-inline: -6px; padding: 0 14px; grid-template-columns: 1fr auto; }
  .rs-drawer__label { grid-column: 1; justify-self: start; }
  .rs-drawer__count { grid-column: 2; }
  .rs-page__meta { grid-template-columns: 1fr; gap: 12px; }
  .rs-page__note { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .rs-card { transition: none; }
  .rs-js .rs-page:not([data-off]) { animation: none; }
}