/* ============================================================
   WORK PAGE
   The device: each case study carries a working rebuild of the one
   mechanism that made the project worth doing.

   The page hero, demo panel, chips and output cells are shared with
   services.html and live in components.css.
   ============================================================ */

/* the projects as a jump index — an honest table of contents.
   auto-fit rather than a fixed count, so entries can be added or
   retired without the grid needing a rewrite. */
.jump{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
  gap:0;margin-top:var(--s96);border-top:1px solid var(--hair-2);
}
.jump__item{
  display:block;padding:var(--s30) var(--s24) var(--s30) 0;
  border-right:1px solid var(--hair);position:relative;
  transition:padding-left .5s var(--ease);
}
.jump__item:last-child{border-right:0}
.jump__item::before{
  content:"";position:absolute;top:-1px;left:0;height:1px;width:0;
  background:var(--iris);transition:width .7s var(--ease);
}
.jump__item:hover::before{width:100%}
.jump__item:hover{padding-left:var(--s12)}
.jump__n{font-size:var(--t-caption);letter-spacing:.14em;color:var(--iris);display:block;margin-bottom:var(--s12)}
.jump__t{font-size:var(--t-2xs);font-weight:var(--fw-r);letter-spacing:-0.035em;margin-bottom:6px}
.jump__s{font-size:13px;color:var(--ash);font-weight:var(--fw-xl)}
.jump__item:hover .jump__t{color:#fff}
/* the last entry is work in progress, not a case study — amber and a live dot
   so it reads as ongoing rather than as a fourth finished project */
.jump__item--wip .jump__n{display:flex;align-items:center;gap:8px;color:var(--spark)}
.jump__item--wip .jump__n::before{
  content:"";width:6px;height:6px;border-radius:50%;flex:none;
  background:var(--spark);animation:pulse 2.6s ease-in-out infinite;
}

/* ---------------- Case study shell ---------------- */
.case{border-top:1px solid var(--hair);padding-block:var(--s120)}
.case__head{margin-bottom:var(--s60)}
.case__eyebrow{
  display:flex;align-items:baseline;gap:var(--s18);flex-wrap:wrap;
  font-size:var(--t-caption);letter-spacing:.14em;text-transform:uppercase;color:var(--iris);
}
.case__eyebrow em{font-style:normal;color:var(--ash)}
.case__name{margin-block:var(--s18) var(--s12)}
.case__meta{display:flex;align-items:center;gap:var(--s18);flex-wrap:wrap}
.case__url{
  display:inline-flex;align-items:center;gap:9px;
  font-size:var(--t-caption);letter-spacing:.04em;
  padding:8px 16px;border-radius:var(--r-full);
  background:rgba(255,255,255,.05);color:var(--mist);
  transition:background .35s ease,color .35s ease,transform .5s var(--ease);
}
.case__url:hover{background:rgba(128,82,255,.2);color:#fff;transform:translateY(-2px)}
.case__live{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--verdant);
}
.case__live i{width:7px;height:7px;border-radius:50%;background:currentColor;animation:pulse 2.4s ease-in-out infinite}

.case__body{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:var(--s96)}

/* narrative column */
.beat{margin-bottom:var(--s60)}
.beat:last-child{margin-bottom:0}
.beat__k{
  display:block;font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--spark);margin-bottom:var(--s18);
  padding-bottom:var(--s12);border-bottom:1px solid var(--hair);
}
.beat__k--muted{color:var(--ash)}
.beat p{font-size:16px;font-weight:var(--fw-xl);color:var(--mist);line-height:1.65}
.beat p + p{margin-top:var(--s18)}
.beat strong{font-weight:var(--fw-r);color:#fff}

.inside{display:flex;flex-direction:column;gap:12px}
.inside li{
  display:flex;gap:14px;align-items:flex-start;
  font-size:15px;font-weight:var(--fw-xl);color:var(--mist);
}
.inside li::before{
  content:"";width:6px;height:6px;flex:none;margin-top:8px;
  background:var(--iris);transform:rotate(45deg);
}

/* demo column — sticks while the narrative scrolls past it */
.case__demoCol{position:sticky;top:calc(var(--nav-h) + var(--s30));align-self:start}

/* ---------------- Demo 01: the WhatsApp message preview ---------------- */
.preview{
  border-radius:14px;background:#0c0c0c;border:1px solid var(--hair);
  padding:var(--s18);font-size:13px;line-height:1.75;color:var(--mist);
  white-space:pre-wrap;word-break:break-word;min-height:132px;
}
.preview b{color:#fff;font-weight:var(--fw-sb)}
.preview .ph{color:#5a5a5a}

/* ---------------- Demo 02: the calculator ---------------- */
.calc__bill{display:flex;align-items:baseline;justify-content:space-between;gap:var(--s18);margin-bottom:var(--s12)}
.calc__amt{font-size:clamp(30px,4vw,42px);font-weight:var(--fw-r);letter-spacing:-0.04em;line-height:1}
.calc__amt small{font-size:13px;color:var(--ash);letter-spacing:0;margin-left:8px}

input[type=range].slider{
  -webkit-appearance:none;appearance:none;width:100%;height:26px;
  background:transparent;cursor:pointer;margin-bottom:var(--s30);
}
input[type=range].slider::-webkit-slider-runnable-track{
  height:3px;border-radius:99px;
  background:linear-gradient(90deg,var(--iris) var(--fill,40%),rgba(255,255,255,.12) var(--fill,40%));
}
input[type=range].slider::-moz-range-track{height:3px;border-radius:99px;background:rgba(255,255,255,.12)}
input[type=range].slider::-moz-range-progress{height:3px;border-radius:99px;background:var(--iris)}
input[type=range].slider::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;
  width:18px;height:18px;border-radius:50%;margin-top:-7.5px;
  background:#fff;box-shadow:0 0 0 5px rgba(128,82,255,.24);
  transition:box-shadow .3s ease,transform .3s var(--ease);
}
input[type=range].slider:hover::-webkit-slider-thumb{box-shadow:0 0 0 8px rgba(128,82,255,.3);transform:scale(1.08)}
input[type=range].slider::-moz-range-thumb{
  width:18px;height:18px;border:0;border-radius:50%;
  background:#fff;box-shadow:0 0 0 5px rgba(128,82,255,.24);
}

/* ---------------- Demo 03: the dual-path switch ---------------- */
.switch{display:grid;grid-template-columns:repeat(2,1fr);gap:6px;padding:5px;background:rgba(255,255,255,.04);border-radius:var(--r-full);margin-bottom:var(--s30)}
.switch__btn{
  font-family:inherit;font-size:13px;font-weight:var(--fw-sb);letter-spacing:.03em;
  padding:12px 10px;border:0;border-radius:var(--r-full);cursor:pointer;
  background:transparent;color:var(--ash);transition:background .4s var(--ease),color .3s ease;
}
.switch__btn[aria-pressed="true"]{background:var(--iris);color:#fff}

.lane{display:flex;flex-direction:column;gap:var(--s18)}
.lane[hidden]{display:none}   /* display:flex would otherwise beat the attribute */
.lane__head{font-size:var(--t-2xs);font-weight:var(--fw-r);letter-spacing:-0.035em;line-height:1.2}
.lane__list{display:flex;flex-direction:column;gap:11px}
.lane__list li{font-size:14px;font-weight:var(--fw-xl);color:var(--mist);display:flex;gap:11px;align-items:flex-start}
.lane__list li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--iris);flex:none;margin-top:8px}
.lane__route{
  display:flex;align-items:center;gap:11px;
  padding:var(--s18);border-radius:12px;
  background:rgba(21,132,110,.1);border:1px solid rgba(21,132,110,.3);
  font-size:13px;font-weight:var(--fw-xl);color:#8fd8c7;
}
.lane__route b{color:#fff;font-weight:var(--fw-sb)}
.lane.is-swap{animation:laneIn .45s var(--ease)}
@keyframes laneIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ---------------- In the studio ----------------
   Ongoing work, stated as states rather than as a count — the page
   should never read as a finished list. Reuses the .case shell. */
.studio{display:flex;flex-direction:column;gap:var(--s36);max-width:860px}
.studio__list{
  list-style:none;display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:1px;background:var(--hair);
  border:1px solid var(--hair);border-radius:14px;overflow:hidden;
}
.studio__list li{
  background:var(--void);padding:var(--s24);
  display:flex;flex-direction:column;gap:9px;
}
.studio__list b{
  font-size:11px;font-weight:var(--fw-sb);letter-spacing:.14em;
  text-transform:uppercase;color:var(--iris);
}
.studio__list span{font-size:14.5px;font-weight:var(--fw-xl);color:var(--mist);line-height:1.6}
.studio__ask{font-size:15px;font-weight:var(--fw-xl);color:var(--ash);line-height:1.65;max-width:56ch}

/* ---------------- Closing CTA picker (.close lives in components.css) ---------------- */
.picker{margin-top:var(--s36)}
.picker__q{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ash);display:block;margin-bottom:var(--s18)}
.picker__out{
  margin-top:var(--s24);padding:var(--s18);border-radius:14px;
  background:rgba(128,82,255,.07);border:1px solid rgba(128,82,255,.22);
  font-size:14px;font-weight:var(--fw-xl);color:var(--mist);line-height:1.6;
}
.picker__out b{color:#fff;font-weight:var(--fw-sb)}

/* ---------------- Responsive ---------------- */
@media (max-width:1024px){
  .jump{grid-template-columns:1fr;margin-top:var(--s60)}
  .jump__item{border-right:0;border-bottom:1px solid var(--hair);padding-right:0}
  .jump__item:last-child{border-bottom:0}
  .case__body{grid-template-columns:1fr;gap:var(--s60)}
  .case__demoCol{position:static}
}
@media (max-width:760px){
  .case{padding-block:var(--s96)}
  .beat{margin-bottom:var(--s36)}
  .case__meta{gap:var(--s12)}
}
@media (max-width:480px){
  .switch{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  .lane.is-swap{animation:none}
}