/* =====================================================================
   RAWAND — Projects (مشاريعنا) · sheet A-04
   A set of project sheets, each with its own line drawing.
   By default (no JS, reduced motion, very short screens) it is a plain list; otherwise
   js/projects.js adds .is-rail and the set is pinned and slides sideways like a drawing table.
   Uses the tokens + .sheet-head from hero.css.
   ===================================================================== */

.projects {
  position: relative;
  background: var(--rw-paper);
}
.prj-stage {
  position: relative;
  padding: clamp(96px, 16svh, 180px) 0;
  overflow: hidden;
  overflow: clip;          /* clip, so focusing a sheet can't scroll the stage sideways */
  isolation: isolate;
}
.projects-paper {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(216, 209, 201, .5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(216, 209, 201, .5) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: center top;
  -webkit-mask-image: linear-gradient(transparent, #000 12%, #000 88%, transparent);
          mask-image: linear-gradient(transparent, #000 12%, #000 88%, transparent);
}
.projects-wrap,
.prj-track,
.prj-progress {
  max-width: calc(1320px + 2 * var(--sp));
  margin-inline: auto;
  padding-inline: var(--sp);
}

/* ------------------------------------------------------------ list (default) */
.prj-track {
  display: grid;
  gap: clamp(40px, 6vw, 72px);
  margin-block: 0;
  list-style: none;
}

/* opening words */
.prj-heading {
  margin: 0;
  font: 800 clamp(2.2rem, 4vw, 4rem)/1.15 var(--font-ar);
  color: var(--rw-900);
}
.prj-heading span { color: var(--rw-700); }
.prj-heading-en {
  margin: 14px 0 0;
  font: 300 clamp(1rem, 1.3vw, 1.25rem)/1.4 var(--font-en);
  text-align: right;
  color: var(--rw-700);
}
.prj-heading-en em,
.prj-next-en em {
  font-family: var(--font-accent);
  font-style: italic;
  font-weight: 500;
  font-size: 1.32em;
  line-height: 1;
}
.prj-lead-text {
  max-width: 420px;
  margin: 26px 0 0;
  font: 400 clamp(15px, 1.15vw, 17px)/1.9 var(--font-ar);
  color: var(--rw-ink-soft);
}
.prj-hint {
  display: none;
  align-items: center;
  gap: 12px;
  margin: 36px 0 0;
  font: 600 13px/1 var(--font-ar);
  color: var(--rw-500);
}
.prj-hint svg { width: 18px; height: 18px; animation: prj-nudge 1.8s var(--ease-out) infinite; }
@keyframes prj-nudge {
  0%, 100% { transform: translateX(0); }
  50%      { transform: translateX(-7px); }
}

/* ------------------------------------------------------------ a project sheet */
.prj-sheet {
  position: relative;
  display: grid;
  grid-template-columns: clamp(260px, 34%, 340px) minmax(0, 1fr);
  grid-template-areas: "info fig";
  height: 100%;
  border: 1px solid rgba(91, 15, 26, .3);
  background: rgba(245, 243, 240, .94);
  transition: transform .6s var(--ease-out), box-shadow .6s var(--ease-out);
}
/* inner margin line of a drawing sheet */
.prj-sheet::before {
  content: '';
  position: absolute;
  inset: 6px;
  border: 1px solid rgba(91, 15, 26, .1);
  pointer-events: none;
}

.prj-info {
  grid-area: info;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 26px 28px 26px;
  border-inline-end: 1px solid rgba(91, 15, 26, .16);
}
.prj-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.prj-cat { font: 700 13px/1 var(--font-ar); color: var(--rw-700); white-space: nowrap; }
.prj-cat span {
  margin-inline-start: 6px;
  font: 600 9px/1 var(--font-en);
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--rw-500);
}
.prj-title {
  margin: 22px 0 0;
  font: 800 clamp(22px, 1.9vw, 29px)/1.3 var(--font-ar);
  color: var(--rw-900);
}
.prj-en {
  display: block;
  margin-top: 8px;
  font: 500 10px/1 var(--font-en);
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--rw-500);
}
.prj-desc {
  margin: 18px 0 0;
  font: 400 15px/1.85 var(--font-ar);
  color: var(--rw-ink-soft);
}

/* project facts: light rows, label on one side and value on the other */
.prj-meta { margin: auto 0 0; padding-top: 22px; }
.prj-meta div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-top: 1px solid rgba(91, 15, 26, .14);
}
.prj-meta dt { font: 600 12px/1.4 var(--font-ar); color: var(--rw-500); }
.prj-meta dd { margin: 0; font: 700 14px/1.4 var(--font-ar); color: var(--rw-900); text-align: left; }

/* our scope on the project: the three service phases, the ones we did inked in */
.prj-scope {
  padding-top: 14px;
  border-top: 1px solid rgba(91, 15, 26, .14);
}
.prj-scope-label { display: block; margin-bottom: 12px; font: 600 12px/1 var(--font-ar); color: var(--rw-500); }
.prj-phases {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}
.prj-phases::before {
  content: '';
  position: absolute;
  top: 5px;
  right: 5px;
  left: calc(33.333% - 5px);
  height: 1px;
  background: rgba(158, 74, 82, .45);
}
.prj-phases li {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 9px;
  font: 600 12px/1 var(--font-ar);
  color: rgba(158, 74, 82, .6);
}
.prj-phases li::before {
  content: '';
  width: 11px;
  height: 11px;
  border: 1px solid var(--rw-500);
  background: var(--rw-paper);
}
.prj-phases li.is-on { color: var(--rw-900); }
.prj-phases li.is-on::before { border-color: var(--rw-700); background: var(--rw-700); }

/* drawing side */
.prj-figure {
  grid-area: fig;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  margin: 0;
  padding: 24px 28px 0;
}
.prj-drawing {
  display: block;
  flex: 1;
  width: 100%;
  height: auto;
  min-height: 0;
  overflow: visible;
  color: var(--rw-900);
  direction: ltr;
}
.prj-cap {
  display: flex;
  justify-content: space-between;
  margin-top: 16px;
  padding: 13px 0 20px;
  border-top: 1px solid rgba(91, 15, 26, .16);
  font: 600 10px/1 var(--font-en);
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--rw-500);
}

/* the drawings (built in js/projects.js) */
.prj-drawing .ln { fill: none; stroke: currentColor; stroke-width: 1; stroke-linecap: round; stroke-linejoin: round; }
.prj-drawing .thin { stroke-width: .7; opacity: .5; }
.prj-drawing .bold { stroke-width: 1.6; }
.prj-drawing .dash { fill: none; stroke: var(--rw-500); stroke-width: .8; stroke-dasharray: 4 4; }
.prj-drawing .solid { fill: currentColor; stroke: none; }
.prj-drawing .acc { fill: rgba(122, 30, 41, .09); stroke: none; opacity: 0; transition: opacity .6s var(--ease-out); }
.prj-drawing .lbl { font: 600 8px var(--font-en); letter-spacing: .08em; fill: var(--rw-500); }
.prj-drawing .lbl.ar { font: 700 10px var(--font-ar); letter-spacing: 0; fill: var(--rw-700); direction: rtl; }

/* a project added on the dashboard: its cover photo instead of a drawing.
   js/projects.js animates --wipe (a pen line reveals it, right → left) and --ink (burgundy print → colour). */
.prj-photo {
  --wipe: 0;
  --ink: 0;
  position: relative;
  flex: 1;
  min-height: 0;
  aspect-ratio: 520 / 340;
  overflow: hidden;
  background: repeating-linear-gradient(-45deg, transparent 0 7px, rgba(158, 74, 82, .1) 7px 8px);
  outline: 1px solid rgba(91, 15, 26, .16);
  outline-offset: 5px;
}
.prj-photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  clip-path: inset(0 0 0 calc(var(--wipe) * 100%));
  filter: grayscale(var(--ink)) contrast(calc(1 + var(--ink) * .2));
  transition: transform 1.2s var(--ease-out);
}
.prj-photo::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--rw-900);
  mix-blend-mode: color;
  opacity: calc(var(--ink) * .9);
  pointer-events: none;
}
.prj-scan {
  position: absolute;
  top: -4px;
  bottom: -4px;
  left: calc(var(--wipe) * 100%);
  z-index: 1;
  width: 1.5px;
  background: var(--rw-700);
  opacity: min(1, calc(var(--wipe) * 12));
}
.prj-film {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 10px;
  background: rgba(245, 243, 240, .92);
  font: 700 12px/1 var(--font-ar);
  color: var(--rw-900);
}
.prj-film svg { width: 9px; height: 9px; fill: currentColor; }
.prj-go {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 700 12px/1 var(--font-ar);
  letter-spacing: 0;
  text-transform: none;
  color: var(--rw-700);
}
.prj-go svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.6; transition: transform .35s var(--ease-out); }
/* the whole sheet opens the project page */
.prj-link { color: inherit; }
.prj-link::after { content: ''; position: absolute; inset: 0; z-index: 2; }
.prj-link:focus-visible { outline: none; }
.prj-link:focus-visible::after { outline: 2px solid var(--rw-700); outline-offset: 4px; }
.is-rail .prj-photo { aspect-ratio: auto; }

@media (hover: hover) {
  .prj-sheet:hover { transform: translateY(-6px); box-shadow: 8px 10px 0 rgba(91, 15, 26, .07); }
  .prj-sheet:hover .acc { opacity: 1; }
  .prj-sheet:hover .prj-photo img { transform: scale(1.035); }
  .prj-sheet:hover .prj-go svg { transform: translateX(-4px); }
}

/* ------------------------------------------------------------ the empty next sheet */
.prj-next-sheet {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  height: 100%;
  min-height: 340px;
  padding: 40px 28px;
  border: 1px dashed rgba(91, 15, 26, .4);
  text-align: center;
}
.prj-next-mark { width: 60px; height: 60px; fill: none; stroke: var(--rw-500); stroke-width: 1; }
.prj-next-title { margin: 0; font: 800 clamp(1.5rem, 2.2vw, 2.1rem)/1.35 var(--font-ar); color: var(--rw-900); }
.prj-next-title span { color: var(--rw-700); }
.prj-next-en { margin: 0 0 8px; font: 300 clamp(.95rem, 1.2vw, 1.15rem)/1.4 var(--font-en); color: var(--rw-700); }

/* ------------------------------------------------------------ progress (rail only) */
.prj-progress {
  display: none;
  align-items: center;
  gap: 20px;
}
.prj-bar { position: relative; flex: 1; height: 1px; background: rgba(91, 15, 26, .18); }
.prj-bar i {
  position: absolute;
  inset: 0;
  background: var(--rw-700);
  transform: scaleX(0);
  transform-origin: right center;
}

/* ================================================== rail: pinned, slides sideways */
.projects.is-rail .prj-stage {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100svh;
  padding: calc(var(--nav-h) + 20px) 0 24px;
}
.is-rail .projects-wrap { width: 100%; }
.is-rail .sheet-head { margin-bottom: clamp(18px, 3.5svh, 36px); }
.is-rail .prj-rail { flex: 1; min-height: 0; }
.is-rail .prj-track {
  display: flex;
  align-items: center;
  gap: clamp(28px, 3.4vw, 56px);
  width: max-content;
  max-width: none;
  height: 100%;
  margin: 0;
  padding-inline: max(var(--sp), calc((100vw - 1320px) / 2));
}
.is-rail .prj-track > li { height: 100%; max-height: 640px; }
.is-rail .prj-lead {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: min(380px, 28vw);
}
.is-rail .prj { width: min(1000px, 70vw); }
.is-rail .prj-next { width: min(420px, 32vw); }
.is-rail .prj-drawing { height: 100%; }
.is-rail .prj-hint { display: inline-flex; }
.is-rail .prj-progress { display: flex; width: 100%; margin-top: clamp(16px, 3svh, 28px); }

/* short laptop screens: keep every sheet inside the viewport */
@media (max-height: 780px) {
  .is-rail .prj-desc { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
  .is-rail .prj-title { margin-top: 14px; }
}
@media (max-height: 660px) {
  .is-rail .prj-desc { display: none; }
}

/* ------------------------------------------------------------ responsive (list) */
@media (max-width: 900px) {
  .prj-track { max-width: calc(640px + 2 * var(--sp)); }
  .prj-sheet { grid-template-columns: minmax(0, 1fr); grid-template-areas: "fig" "info"; }
  .prj-info { border-inline-end: 0; border-top: 1px solid rgba(91, 15, 26, .16); }
  .prj-cap { padding-bottom: 16px; }
}

@media (max-width: 560px) {
  .prj-info { padding: 22px 18px; }
  .prj-figure { padding: 18px 18px 0; }
  .prj-next-sheet .btn { width: 100%; justify-content: center; }
}

/* ------------------------------------------------------------ rail on phones / tablets
   Same pinned sideways slide; each sheet is one screen tall: drawing on top (it takes
   whatever height is left), facts below. */
@media (max-width: 900px) {
  .projects.is-rail .prj-stage { padding: calc(var(--nav-h) + 14px) 0 18px; }
  .is-rail .sheet-head { margin-bottom: 14px; }
  .is-rail .prj-track { gap: 16px; padding-inline: var(--sp); }
  .is-rail .prj-track > li { max-height: none; }
  .is-rail .prj { width: min(86vw, 520px); }
  .is-rail .prj-lead,
  .is-rail .prj-next { width: min(80vw, 420px); }
  .is-rail .prj-sheet { display: flex; flex-direction: column; }
  .is-rail .prj-figure { order: -1; flex: 1 1 0; padding: 14px 18px 0; }
  .is-rail .prj-cap { margin-top: 8px; padding: 10px 0 12px; }
  .is-rail .prj-info { flex: none; padding: 14px 18px 16px; }
  .is-rail .prj-title { margin-top: 8px; font-size: 21px; }
  .is-rail .prj-en { margin-top: 6px; }
  .is-rail .prj-desc { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-top: 8px; font-size: 14px; line-height: 1.75; }
  .is-rail .prj-meta { padding-top: 10px; }
  .is-rail .prj-meta div { padding: 7px 0; }
  .is-rail .prj-scope { padding-top: 9px; }
  .is-rail .prj-scope-label { margin-bottom: 8px; }
  .is-rail .prj-next-sheet { min-height: 0; }
  .is-rail .prj-progress { margin-top: 14px; }
}
@media (max-width: 900px) and (max-height: 700px) {
  .is-rail .prj-desc { display: none; }
}