/* retro · project page. Opening after Sam Ortega (title, meta row, outcomes); body after
   Hasnain (numbered serif chapters, label/text rows, sticky chapter pills, marquee, giant name).
   Only retro tokens; logical properties throughout. */

.top-start { display: flex; align-items: center; gap: var(--s-3); min-width: 0; }
.back {
  display: inline-flex; align-items: center; gap: var(--s-2); min-height: 40px; padding: 0 14px 0 12px;
  border-radius: var(--r-pill); border: 1px solid var(--line-strong); text-decoration: none;
  font-size: var(--t-small); color: var(--ink-2); white-space: nowrap;
  transition: border-color var(--d-fast), color var(--d-fast), transform 100ms var(--ease-out);
}
.back:hover { border-color: var(--ink-3); color: var(--ink); }
.back:active { transform: scale(.97); }
[dir="ltr"] .back svg { transform: scaleX(-1); }

/* ---------- opening ---------- */
.p-hero { padding-block: clamp(2.5rem, 6vw, 5rem) var(--s-6); }
.p-hero .eyebrow { margin: 0 0 var(--s-5); }
.p-h1 {
  margin: 0; font-weight: 800; font-size: clamp(2.75rem, 7.6vw, 7rem); line-height: .95; letter-spacing: -.04em;
}
[lang="en"] .p-h1 { letter-spacing: -.045em; }
.p-lead {
  margin: var(--s-5) 0 0; max-width: 34ch;
  font-size: var(--t-lead); font-weight: 500; line-height: 1.25; letter-spacing: -.015em;
}
.p-meta {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--s-4);
  margin: var(--s-7) 0 0; padding-top: var(--s-5); border-top: 1px solid var(--line);
}
.p-meta dt { color: var(--ink-3); font-size: var(--t-label); text-transform: uppercase; margin-bottom: var(--s-1); }
.p-meta dd { margin: 0; font-size: var(--t-small); color: var(--ink); }

.p-cover {
  position: relative; margin: var(--s-7) 0 0; aspect-ratio: 16 / 8.2; border-radius: var(--r-card); overflow: hidden;
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 85% 0%, rgba(245,165,36,.16), transparent 60%),
    linear-gradient(180deg, var(--surface-2), var(--surface));
}
.p-cover .shot-d { inset-inline-start: 6%; top: 9%; width: 72%; }
.p-cover .shot-m { inset-inline-end: 7%; top: 18%; width: 17%; }

.outcomes {
  list-style: none; margin: var(--s-5) 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-4);
}
.outcomes li {
  display: grid; gap: var(--s-2); align-content: start;
  padding: var(--s-5); border-radius: var(--r-md); background: var(--surface); border: 1px solid var(--line);
}
.o-i { color: var(--ink-3); font-size: var(--t-label); }
.outcomes b { font-size: clamp(2.5rem, 4.4vw, 3.75rem); font-weight: 800; line-height: 1; letter-spacing: -.04em; color: var(--accent); }
.outcomes li > span:last-child { color: var(--ink-2); font-size: var(--t-small); }

/* ---------- body: sticky chapter pills + chapters ---------- */
.p-body {
  display: grid; grid-template-columns: minmax(0, 1fr) 13rem; gap: var(--s-8);
  grid-template-areas: "chapters nav"; align-items: start;
  padding-block: var(--s-8) var(--s-9);
}
.chapters { grid-area: chapters; min-width: 0; }
.chap-nav {
  grid-area: nav; position: sticky; top: 88px; z-index: 20;
  display: flex; flex-direction: column; align-items: flex-start; gap: var(--s-2);
}
.chap-nav a {
  padding: 7px 14px; border-radius: var(--r-pill); border: 1px solid var(--line-strong);
  font-size: var(--t-small); color: var(--ink-2); text-decoration: none; white-space: nowrap;
  transition: background var(--d-fast) var(--ease-out), color var(--d-fast) var(--ease-out), border-color var(--d-fast);
}
.chap-nav a:hover { border-color: var(--ink-3); color: var(--ink); }
.chap-nav a.on { background: var(--ink); border-color: var(--ink); color: var(--bg); }

.chap { padding-block: var(--s-7); border-top: 1px solid var(--line); scroll-margin-top: 80px; }
.chap:first-child { border-top: 0; padding-top: 0; }
.chap-h {
  margin: 0 0 var(--s-6); display: flex; align-items: flex-start; gap: var(--s-2);
  font: 500 clamp(2.25rem, 4.6vw, 4rem)/1 var(--font-serif); letter-spacing: -.02em;
}
.chap-h sup { font-size: var(--t-label); color: var(--ink-3); letter-spacing: .02em; margin-top: .4em; }
.chap-intro { margin: 0 0 var(--s-6); max-width: 62ch; color: var(--ink-2); font-size: 1.0625rem; }

.rows { margin: 0; display: grid; gap: var(--s-5); }
.row { display: grid; grid-template-columns: 12rem minmax(0, 1fr); gap: var(--s-5); }
.row dt { color: var(--ink-3); font-size: var(--t-small); display: flex; gap: var(--s-2); align-items: baseline; }
.row dt::before { content: "•"; color: var(--accent); }
.row dd { margin: 0; max-width: 62ch; line-height: 1.7; }
.row dd.quote { font-family: var(--font-serif); font-size: 1.125rem; line-height: 1.6; color: var(--ink); }

.todo {
  margin: 0; padding: var(--s-3) var(--s-4); border: 1px dashed var(--line-strong); border-radius: var(--r-sm);
  color: var(--ink-3); display: grid; gap: var(--s-1);
}
.todo b { color: var(--accent); font-size: var(--t-label); font-weight: 500; }

/* ---------- live prototype ---------- */
.proto { border-radius: var(--r-card); border: 1px solid var(--line); background: var(--surface); overflow: hidden; }
.proto-bar {
  display: flex; align-items: center; gap: var(--s-3); flex-wrap: wrap;
  padding: var(--s-3) var(--s-4); border-bottom: 1px solid var(--line);
}
.seg-sm button { min-height: 30px; padding: 5px 12px; }
.proto-w { color: var(--ink-3); font-size: var(--t-label); direction: ltr; }
.proto-open {
  margin-inline-start: auto; font-size: var(--t-small); color: var(--ink-2); text-decoration: none;
  padding: 6px 12px; border-radius: var(--r-pill); border: 1px solid var(--line-strong);
}
.proto-open:hover { color: var(--ink); border-color: var(--ink-3); }
.proto-stage { position: relative; display: flex; justify-content: center; background: #0a0908; min-height: 240px; }
.proto[data-mode="mob"] .proto-stage { padding-block: var(--s-5); box-sizing: content-box; }
.proto-frame { position: relative; z-index: 1; overflow: hidden; }
.proto[data-mode="mob"] .proto-frame { border-radius: 28px; box-shadow: 0 0 0 8px #1f1d1a, 0 30px 60px -20px rgba(0,0,0,.7); }
.proto-frame iframe { position: absolute; top: 0; left: 0; display: block; border: 0; background: #fff; transform-origin: 0 0; }
[dir="rtl"] .proto-frame iframe { left: auto; right: 0; transform-origin: 100% 0; }
.proto-poster {
  position: absolute; inset: 0; display: grid; place-items: center; overflow: hidden;
  transition: opacity var(--d-med) var(--ease-out);
}
.proto-poster img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top; opacity: .25; filter: blur(2px); }
.proto-poster span { position: relative; color: var(--ink-2); font-size: var(--t-small); }
.proto-stage.ready .proto-poster { opacity: 0; pointer-events: none; }
.proto-note { margin: 0; padding: var(--s-3) var(--s-4); color: var(--ink-3); font-size: var(--t-label); border-top: 1px solid var(--line); }
.seg-sm .seg-thumb { transition: transform var(--d-med) var(--ease-out); }
.proto[data-mode="mob"] .seg-sm .seg-thumb { transform: translateX(calc(100% * var(--dir))); }
.lens-dev .proto[data-mode="desk"] .seg-sm .seg-thumb { transform: none; }

/* ---------- before / after ---------- */
.ba-tabs { display: inline-flex; gap: var(--s-2); margin-bottom: var(--s-4); flex-wrap: wrap; }
.ba-tabs button {
  border: 1px solid var(--line-strong); background: none; cursor: pointer; border-radius: var(--r-pill);
  padding: 7px 14px; font-size: var(--t-small); color: var(--ink-2); min-height: 36px;
}
.ba-tabs button[aria-selected="true"] { background: var(--ink); border-color: var(--ink); color: var(--bg); }
.ba-stage {
  position: relative; border-radius: var(--r-md); overflow: hidden; border: 1px solid var(--line);
  touch-action: pan-y; user-select: none; cursor: ew-resize; background: #fff;
}
.ba-stage img { display: block; width: 100%; height: auto; pointer-events: none; }
.ba-stage.tall { max-width: 420px; margin-inline: auto; }
.ba-clip { position: absolute; inset: 0; clip-path: inset(0 calc(100% - var(--pos)) 0 0); }
[dir="rtl"] .ba-clip { clip-path: inset(0 0 0 calc(100% - var(--pos))); }
.ba-line { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--accent); inset-inline-start: var(--pos); transform: translateX(-50%); pointer-events: none; }
[dir="rtl"] .ba-line { transform: translateX(50%); }
.ba-knob {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
  background: var(--accent); color: var(--accent-ink); box-shadow: 0 6px 20px rgba(0,0,0,.35);
}
.ba-lab {
  position: absolute; top: var(--s-3); padding: 3px 9px; border-radius: 6px; font-size: var(--t-label);
  background: rgba(13,12,11,.82); color: var(--ink); pointer-events: none;
}
.ba-lab-b { inset-inline-start: var(--s-3); }
.ba-lab-a { inset-inline-end: var(--s-3); }
.ba-range { position: absolute; inset: auto 0 0; width: 100%; height: 44px; opacity: 0; cursor: ew-resize; margin: 0; }
[dir="rtl"] .ba-range { direction: rtl; }
.ba-range:focus-visible ~ .ba-line .ba-knob, .ba-stage:focus-within .ba-knob { outline: 2px solid var(--focus); outline-offset: 3px; }
.ba-notes { margin: var(--s-5) 0 0; padding-inline-start: 1.2em; display: grid; gap: var(--s-2); color: var(--ink-2); font-size: var(--t-small); max-width: 70ch; }
.ba-notes li::marker { color: var(--accent); font-family: var(--font-mono); }

/* ---------- review rounds ---------- */
.steps {
  list-style: none; margin: 0 0 var(--s-6); padding: 0; counter-reset: s;
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-3);
}
.steps li {
  counter-increment: s; padding: var(--s-4); border-radius: var(--r-md); background: var(--surface); border: 1px solid var(--line);
  font-size: var(--t-small); color: var(--ink-2); line-height: 1.55;
}
.steps li::before { content: counter(s, decimal-leading-zero); display: block; margin-bottom: var(--s-2); font: 500 var(--t-label) var(--font-mono); color: var(--accent); }

/* ---------- what dev gets ---------- */
.gains { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-4); }
.gains li { padding: var(--s-5); border-radius: var(--r-md); border: 1px solid var(--line); background: var(--surface); }
.gains h3 { margin: var(--s-2) 0 var(--s-2); font-size: 1.25rem; font-weight: 700; letter-spacing: -.015em; }
.gains p { margin: 0; color: var(--ink-2); font-size: var(--t-small); }

/* ---------- end ---------- */
.next { padding-block: var(--s-6) var(--s-8); }
.next-a {
  display: flex; align-items: baseline; justify-content: space-between; gap: var(--s-4); flex-wrap: wrap;
  padding-block: var(--s-6); border-block: 1px solid var(--line); text-decoration: none; cursor: default;
}
.next-a span { color: var(--ink-3); font-size: var(--t-label); text-transform: uppercase; }
.next-a b { font-size: var(--t-h2); font-weight: 700; letter-spacing: -.03em; color: var(--ink-3); }

.marquee { overflow: hidden; border-block: 1px solid var(--line); padding-block: var(--s-4); direction: ltr; }
.mq-track { display: flex; width: max-content; animation: mq 40s linear infinite; }
.mq-track > div { display: flex; align-items: center; }
.mq-track span { font-size: clamp(1.5rem, 3vw, 2.5rem); font-weight: 500; letter-spacing: -.02em; padding-inline: var(--s-5); white-space: nowrap; }
.mq-track i { font-style: normal; color: var(--accent); font-size: 1.5rem; }
@keyframes mq { to { transform: translateX(-50%); } }

.giant {
  margin: 0; padding: var(--s-6) var(--gutter) 0; overflow: hidden; text-align: center; white-space: nowrap;
  font-weight: 800; font-size: clamp(4rem, 17vw, 17rem); line-height: .8; letter-spacing: -.05em;
  color: transparent; -webkit-text-stroke: 1px var(--line-strong);
}
.page-project footer { border-top: 0; }

/* ---------- developer view on the project page ---------- */
.lens-dev .chap-h { outline: 1px dashed rgba(255, 90, 110, .5); outline-offset: 6px; }
.lens-dev .row { box-shadow: inset 0 -1px 0 rgba(255, 90, 110, .18); }

@media (prefers-reduced-motion: reduce) {
  .mq-track { animation: none; }
}

/* ---------- tablet ---------- */
@media (max-width: 1023px) {
  .p-body { grid-template-columns: minmax(0, 1fr); grid-template-areas: "nav" "chapters"; gap: var(--s-5); padding-top: var(--s-5); }
  .chap-nav {
    top: 64px; flex-direction: row; overflow-x: auto; scrollbar-width: none;
    margin-inline: calc(var(--gutter) * -1); padding: var(--s-3) var(--gutter);
    background: rgba(13, 12, 11, .82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  }
  .chap-nav::-webkit-scrollbar { display: none; }
  .chap-nav a { flex: none; }
  .chap { scroll-margin-top: 130px; }
  .p-meta { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .row { grid-template-columns: 9rem minmax(0, 1fr); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- phone ---------- */
@media (max-width: 767px) {
  .back span { display: none; }
  .back { padding: 0; width: 40px; justify-content: center; }
  .chap-nav { top: 58px; }
  .outcomes { grid-template-columns: minmax(0, 1fr); }
  .outcomes li { grid-template-columns: auto minmax(0, 1fr); align-items: baseline; column-gap: var(--s-4); }
  .outcomes .o-i { grid-column: 1 / -1; }
  .p-cover { aspect-ratio: 4 / 3.4; }
  .p-cover .shot-d { inset-inline-start: 6%; top: 9%; width: 80%; }
  .p-cover .shot-m { inset-inline-end: 5%; top: 30%; width: 30%; }
  .row { grid-template-columns: minmax(0, 1fr); gap: var(--s-2); }
  .steps, .gains { grid-template-columns: minmax(0, 1fr); }
  .proto-w { display: none; }
}

/* Hebrew inside mono labels: JetBrains Mono has no Hebrew glyphs, and the system mono
   fallback spaces each letter out. Latin and digits stay mono; Hebrew falls to Heebo. */
[lang="he"] .page-project .mono, html[lang="he"] body.page-project .mono { font-family: "JetBrains Mono", "Heebo", sans-serif; letter-spacing: 0; }