/* =========================================================
   NIKOOSEN — PORTFOLIO LIST
   Three visually-distinct "worlds" + cursor-follow blur +
   hover-scroll page screenshots. Built on the shared theme.
   ========================================================= */

.pf{
  position:relative;background:var(--bg);color:var(--text);
  --acc:#4F7CFF;--acc-soft:rgba(79,124,255,.12);--acc-line:rgba(79,124,255,.35);
}

/* accent palette (matches landing) */
.pf .acc-blue  {--acc:#4F7CFF;--acc-soft:rgba(79,124,255,.13);--acc-line:rgba(79,124,255,.38)}
.pf .acc-cyan  {--acc:#55D6FF;--acc-soft:rgba(85,214,255,.12);--acc-line:rgba(85,214,255,.38)}
.pf .acc-violet{--acc:#8B7CFF;--acc-soft:rgba(139,124,255,.15);--acc-line:rgba(139,124,255,.42)}
.pf .acc-pink  {--acc:#FF8AB7;--acc-soft:rgba(255,138,183,.12);--acc-line:rgba(255,138,183,.38)}
.pf .acc-mint  {--acc:#4AFFD4;--acc-soft:rgba(74,255,212,.10);--acc-line:rgba(74,255,212,.34)}

/* ---------- reveal ---------- */
.pf .reveal{opacity:0;transform:translateY(34px)}

/* ---------- cursor-follow blur (desktop only) ---------- */
.pf-cursor{
  position:fixed;top:0;left:0;width:340px;height:340px;border-radius:50%;
  pointer-events:none;z-index:1;opacity:0;
  background:radial-gradient(circle,rgba(85,214,255,.16),rgba(79,124,255,.10) 40%,transparent 68%);
  filter:blur(30px);transition:opacity .4s;will-change:transform;
}
.pf-cursor.is-on{opacity:1}
@media (pointer:coarse){.pf-cursor{display:none}}

/* =========================================================
   HERO — content right, visual left (equal height)
   ========================================================= */
.pf-hero{position:relative;padding:150px 0 70px;overflow:hidden}
.pf-hero__bg{position:absolute;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.pf-orb{position:absolute;border-radius:50%;opacity:.55;will-change:transform,opacity;animation:pfDrift 17s ease-in-out infinite alternate}
/* the gradient and its blur live on the child so scrolling re-composites one texture instead of re-blurring every frame */
.pf-orb::after{content:'';position:absolute;inset:0;border-radius:inherit;filter:blur(74px)}
.pf-orb--a{width:520px;height:520px;top:-170px;inset-inline-end:-130px}
.pf-orb--a::after{background:radial-gradient(circle,rgba(79,124,255,.42),transparent 65%)}
.pf-orb--b{width:440px;height:440px;bottom:-160px;inset-inline-start:-110px;animation:pfDrift2 20s ease-in-out infinite alternate}
.pf-orb--b::after{background:radial-gradient(circle,rgba(139,124,255,.34),transparent 65%)}
.pf-orb--c{width:300px;height:300px;top:38%;inset-inline-start:44%;animation:pfDrift 23s ease-in-out infinite alternate-reverse}
.pf-orb--c::after{background:radial-gradient(circle,rgba(85,214,255,.22),transparent 65%)}
@keyframes pfDrift{0%{transform:translate3d(0,0,0) scale(1);opacity:.45}100%{transform:translate3d(-54px,42px,0) scale(1.2);opacity:.72}}
@keyframes pfDrift2{0%{transform:translate3d(0,0,0) scale(1.1);opacity:.4}100%{transform:translate3d(50px,-38px,0) scale(.92);opacity:.66}}
.pf-gridlines{
  position:absolute;inset:-2px;
  mask-image:radial-gradient(ellipse 85% 70% at 50% 24%,#000,transparent 76%);
}
/* the pan moves a layer instead of repainting the hero, and one extra tile of
   margin keeps the masked box covered for the whole travel */
.pf-gridlines::before{
  content:'';position:absolute;inset:-56px;will-change:transform;
  background-image:linear-gradient(rgba(126,161,197,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(126,161,197,.07) 1px,transparent 1px);
  background-size:56px 56px;
  animation:pfGridPan 28s linear infinite;
}
@keyframes pfGridPan{to{transform:translate3d(56px,56px,0)}}

.pf-hero__grid{
  position:relative;z-index:1;display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:clamp(30px,5vw,60px);align-items:center;
}
.pf-badge{
  display:inline-flex;align-items:center;gap:9px;font-size:.8rem;color:var(--muted);
  border:1px solid var(--line);border-radius:80px;padding:6px 14px;margin-bottom:24px;
  background:rgba(255,255,255,.04);backdrop-filter:blur(6px);
}
.pf-badge__dot{width:7px;height:7px;border-radius:50%;background:#55D6FF;box-shadow:0 0 12px rgba(85,214,255,.7);animation:pfPulse 2s infinite}
@keyframes pfPulse{50%{opacity:.4}}
.pf-hero h1{font-size:clamp(1.9rem,4.2vw,3rem);font-weight:900;line-height:1.4;letter-spacing:-.01em;margin-bottom:20px}
.pf-accent{
  background:linear-gradient(90deg,#4F7CFF,#55D6FF,#8B7CFF);background-size:200%;
  -webkit-background-clip:text;background-clip:text;color:transparent;animation:pfShimmer 5s linear infinite;
}
@keyframes pfShimmer{to{background-position:200% center}}
.pf-hero__sub{color:var(--muted);font-size:1.02rem;line-height:2.05;max-width:600px;margin-bottom:32px}
.pf-hero__stats{display:flex;gap:14px;flex-wrap:wrap}
.pf-stat{
  border:1px solid var(--line);border-radius:16px;padding:14px 24px;background:rgba(255,255,255,.03);
  display:flex;flex-direction:column;gap:2px;min-width:100px;
}
.pf-stat b{font-size:1.5rem;font-weight:900;color:#8fd0ff;line-height:1.2}
.pf-stat span{font-size:.78rem;color:var(--muted)}

/* ---------- hero visual: floating project stack ---------- */
.pf-hero__visual{position:relative;min-height:380px;display:grid;place-items:center}
.pf-stack{position:relative;width:min(340px,100%);aspect-ratio:3/3.4}
.pf-stack__card{
  position:absolute;inset:0;border-radius:18px;border:1px solid rgba(148,183,214,.16);
  background:linear-gradient(160deg,var(--g1),var(--g2));box-shadow:0 26px 60px rgba(0,0,0,.42);
}
.pf-stack__card--1{transform:translate(26px,-24px) rotate(6deg);opacity:.55;animation:pfFloat1 7s ease-in-out infinite}
.pf-stack__card--2{transform:translate(-24px,10px) rotate(-5deg);opacity:.75;animation:pfFloat2 8s ease-in-out infinite}
.pf-stack__card--3{
  transform:translate(0,0);display:flex;flex-direction:column;gap:10px;padding:20px;overflow:hidden;
  animation:pfFloat3 9s ease-in-out infinite;
}
.pf-stack__card--3::after{content:'';position:absolute;inset:0;background:radial-gradient(120% 100% at 100% 0%,rgba(255,255,255,.12),transparent 55%)}
.pf-stack__bar,.pf-stack__hero,.pf-stack__row{position:relative;z-index:1;border-radius:7px;background:rgba(255,255,255,.2)}
.pf-stack__bar{width:44%;height:9px;background:rgba(255,255,255,.6)}
.pf-stack__hero{height:88px;margin-top:6px;background:rgba(255,255,255,.16)}
.pf-stack__row{height:12px}
.pf-stack__row.short{width:62%}
.pf-stack__cursor{position:absolute;bottom:26px;inset-inline-start:34px;color:#fff;filter:drop-shadow(0 4px 10px rgba(0,0,0,.5));animation:pfCursorMove 6s ease-in-out infinite;z-index:3}
@keyframes pfFloat1{0%,100%{transform:translate(26px,-24px) rotate(6deg)}50%{transform:translate(30px,-34px) rotate(8deg)}}
@keyframes pfFloat2{0%,100%{transform:translate(-24px,10px) rotate(-5deg)}50%{transform:translate(-30px,18px) rotate(-7deg)}}
@keyframes pfFloat3{0%,100%{transform:translate(0,0)}50%{transform:translate(0,-10px)}}
/* narrow screens keep the same stack, but the corners must not reach past each other */
@keyframes pfFloat1m{0%,100%{transform:translate(7px,-15px) rotate(2deg)}50%{transform:translate(10px,-20px) rotate(2.5deg)}}
@keyframes pfFloat2m{0%,100%{transform:translate(-9px,14px) rotate(-2deg)}50%{transform:translate(-12px,18px) rotate(-2.5deg)}}
@keyframes pfFloat3m{0%,100%{transform:translate(0,0)}50%{transform:translate(0,-6px)}}
@keyframes pfCursorMove{0%,100%{transform:translate(0,0)}25%{transform:translate(-40px,-30px)}50%{transform:translate(30px,-60px)}75%{transform:translate(-10px,20px)}}

/* =========================================================
   WORLD SECTION (shared)
   ========================================================= */
.pf-world{position:relative;padding:72px 0;z-index:2}
.pf-world:nth-of-type(even){background:var(--bg2)}
.pf-world__head{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;
  gap:clamp(18px,3vw,32px);margin-bottom:40px;padding-bottom:24px;border-bottom:1px solid var(--line);
}
.pf-world__num{
  font-size:clamp(2.4rem,5.4vw,4rem);font-weight:900;line-height:1;
  color:transparent;-webkit-text-stroke:1.4px var(--acc-line);
}
.pf-world__eyebrow{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.pf-world__label{font-size:.78rem;color:var(--acc);font-weight:800}
.pf-world__en{font-size:.74rem;color:var(--muted);letter-spacing:.08em}
.pf-world__titles h2{font-size:clamp(1.35rem,2.9vw,2.05rem);font-weight:900;line-height:1.45;margin-bottom:8px}
.pf-world__sub{color:var(--muted);font-size:.94rem;line-height:1.9;max-width:640px}
.pf-world__count{display:flex;flex-direction:column;align-items:center;gap:2px;border:1px solid var(--acc-line);border-radius:14px;padding:12px 18px;background:var(--acc-soft)}
.pf-world__count b{font-size:1.5rem;font-weight:900;color:var(--acc);line-height:1}
.pf-world__count span{font-size:.72rem;color:var(--muted)}

/* =========================================================
   SHOT — fake full-height page that scrolls on hover
   ========================================================= */
.pf-shot{position:relative;overflow:hidden;border-radius:10px 10px 0 0;background:#060d18;height:210px;flex-shrink:0}
.pf-shot__page{
  position:absolute;inset:0;height:300%;display:flex;flex-direction:column;gap:12px;padding:16px;
  background:linear-gradient(170deg,var(--g1),var(--g2));
  transition:transform 1.2s cubic-bezier(.4,0,.2,1);will-change:transform;
}
.pf-shot__page>.shot-img{position:absolute;inset:0 auto auto 0;width:100%;height:auto}
.pf-card:hover .pf-shot__page{transform:translateY(var(--shot-scroll, -66.6%));transition-duration:var(--shot-time, 3.4s)}
.pf-shot__nav{display:flex;gap:6px}
.pf-shot__nav i{width:20px;height:6px;border-radius:4px;background:rgba(255,255,255,.5)}
.pf-shot__nav i:first-child{width:40px;background:rgba(255,255,255,.85)}
.pf-shot__hero{height:78px;border-radius:9px;background:rgba(255,255,255,.16);margin-top:6px}
.pf-shot__row{display:flex;gap:10px}
.pf-shot__row b{flex:1;height:52px;border-radius:8px;background:rgba(255,255,255,.13)}
.pf-shot__text{height:7px;border-radius:5px;background:rgba(255,255,255,.22)}
.pf-shot__text.short{width:56%}
.pf-shot__grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.pf-shot__grid b{height:64px;border-radius:8px;background:rgba(255,255,255,.12)}
.pf-shot__hint{
  position:absolute;bottom:10px;inset-inline-start:10px;z-index:2;display:inline-flex;align-items:center;gap:5px;
  font-size:.68rem;color:#dbe8f6;background:rgba(6,13,24,.72);border:1px solid rgba(255,255,255,.16);
  padding:4px 9px;border-radius:30px;backdrop-filter:blur(6px);opacity:0;transform:translateY(6px);transition:.35s;
}
.pf-card:hover .pf-shot__hint{opacity:1;transform:translateY(0)}

/* code / bot visual — not a website: the shot is a still cover, it never scrolls */
.pf-shot--code{background:#050a13}
.pf-shot__page--code{height:100%;gap:10px;padding:16px;justify-content:center;will-change:auto}
/* a still sample is shown whole, the gradient of the record fills the rest of the frame */
.pf-shot__page--code>.shot-img{inset:0;width:100%;height:100%;object-fit:contain}
/* the generic hover rule still has a fallback distance, so a code page must opt out */
.pf-card:hover .pf-shot__page--code{transform:none}
.pf-code__bar{display:flex;gap:6px;position:absolute;top:12px;inset-inline-start:14px}
.pf-code__bar i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.28)}
.pf-code__bar i:first-child{background:#ff6b6b}.pf-code__bar i:nth-child(2){background:#ffc46b}
.pf-code__lines{display:flex;flex-direction:column;gap:9px;margin-top:14px}
.pf-code__lines b{height:7px;border-radius:4px;background:var(--acc-line)}
.pf-code__lines b:nth-child(1){width:70%}.pf-code__lines b:nth-child(2){width:88%}
.pf-code__lines b:nth-child(3){width:54%}.pf-code__lines b:nth-child(4){width:80%}
.pf-code__lines b:nth-child(5){width:46%}
.pf-code__glyph{position:absolute;bottom:8px;inset-inline-end:14px;font-size:2.2rem;color:var(--acc);opacity:.55}

/* =========================================================
   CARD (shared, minimal)
   ========================================================= */
.pf-card{
  position:relative;display:flex;flex-direction:column;text-decoration:none;color:inherit;
  border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--card);
  transition:transform .4s cubic-bezier(.2,.7,.3,1),border-color .4s,box-shadow .4s;
}
.pf-card:hover{transform:translateY(-6px);border-color:var(--acc-line);box-shadow:0 20px 50px rgba(0,0,0,.38)}
.pf-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.pf-card__top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.pf-card__idx{font-size:.82rem;font-weight:900;color:var(--acc)}
.pf-card__tag{font-size:.72rem;color:var(--muted)}
.pf-card__body h3{font-size:1.06rem;font-weight:800;line-height:1.65}
.pf-card__link{
  margin-top:auto;display:inline-flex;align-items:center;gap:7px;font-size:.82rem;font-weight:700;
  color:var(--acc);padding-top:6px;
}
.pf-card__link svg{transition:transform .3s}
.pf-card:hover .pf-card__link svg{transform:translateX(-5px)}

/* ---------- WORLD 01: build — 3 equal columns ---------- */
.pf-grid--build{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.pf-card--build .pf-shot{height:230px}

/* ---------- WORLD 02: improve — horizontal rows ---------- */
.pf-grid--improve{display:grid;grid-template-columns:1fr;gap:14px}
.pf-card--improve{flex-direction:row;align-items:stretch;background:linear-gradient(120deg,rgba(16,29,45,.9),rgba(11,23,40,.65))}
.pf-card--improve .pf-shot{width:240px;height:auto;min-height:158px;border-radius:14px 0 0 14px}
.pf-card--improve .pf-card__body{padding:22px 26px;justify-content:center}
/* alternate the image to the opposite side every other card */
.pf-grid--improve .pf-card--improve:nth-child(even){flex-direction:row-reverse}
.pf-grid--improve .pf-card--improve:nth-child(even) .pf-shot{border-radius:0 14px 14px 0}

/* ---------- WORLD 03: solve — feature + 2×2 ---------- */
.pf-grid--solve{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.pf-card--solve{background:radial-gradient(120% 120% at 100% 0%,var(--acc-soft),transparent 60%),var(--card)}
.pf-card--solve:first-child{grid-column:1 / -1;flex-direction:row}
.pf-card--solve:first-child .pf-shot{width:44%;height:auto;min-height:250px;border-radius:14px 0 0 14px}
.pf-card--solve:first-child .pf-card__body{padding:28px 30px;justify-content:center}
.pf-card--solve .pf-shot{height:210px}

/* =========================================================
   CTA
   ========================================================= */
.pf-cta{padding:36px 0 90px}
.pf-cta__box{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:38px 44px;border-radius:24px;border:1px solid var(--line);
  background:radial-gradient(120% 140% at 0% 0%,rgba(79,124,255,.16),transparent 55%),var(--bg2);
}
.pf-cta__box h2{font-size:clamp(1.3rem,2.6vw,1.9rem);font-weight:900;margin-bottom:8px}
.pf-cta__box p{color:var(--muted);font-size:.95rem}
.pf-cta__box .btn{flex-shrink:0}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:1024px){
  .pf-grid--build{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pf-hero__grid{grid-template-columns:1fr;gap:40px}
  /* .pf-hero__visual{min-height:300px} */
  .pf-hero__visual {display: none;}
  .pf-world__head{grid-template-columns:auto minmax(0,1fr)}
  .pf-world__count{grid-column:1 / -1;justify-self:start;flex-direction:row;gap:8px;align-items:baseline}
}
@media (max-width:760px){
  .pf-hero{padding:126px 0 52px}
  .pf-stack__card--1{transform:translate(7px,-15px) rotate(2deg);animation-name:pfFloat1m}
  .pf-stack__card--2{transform:translate(-9px,14px) rotate(-2deg);animation-name:pfFloat2m}
  .pf-stack__card--3{animation-name:pfFloat3m}
  .pf-grid--build{grid-template-columns:1fr}
  .pf-card--improve{flex-direction:column}
  .pf-card--improve .pf-shot{width:100%;height:200px;min-height:0;border-radius:14px 14px 0 0}
  .pf-grid--improve .pf-card--improve:nth-child(even){flex-direction:column}
  .pf-grid--improve .pf-card--improve:nth-child(even) .pf-shot{border-radius:14px 14px 0 0}
  .pf-card--solve:first-child{flex-direction:column}
  .pf-card--solve:first-child .pf-shot{width:100%;min-height:0;height:200px;border-radius:10px 10px 0 0}
  .pf-grid--solve{grid-template-columns:1fr}
  .pf-card:hover{transform:none}
  .pf-card:hover .pf-shot__page{transform:none}
  .pf-card .pf-shot__page.is-scrolled{transform:translateY(var(--shot-scroll, -66.6%));transition-duration:var(--shot-time, 3.4s)}
  .pf-shot__hint{display:none}
  .pf-cta__box{padding:28px 22px}
}
@media (prefers-reduced-motion:reduce){
  .pf *,.pf *::before,.pf *::after{animation:none!important;transition:none!important}
  .pf .reveal{opacity:1;transform:none}
  .pf-cursor{display:none}
}