/* ============================================================
   Vivid Web Solutions — Portfolio (editorial / minimal)
   Image-forward, borderless tiles · hairline structure
   Built on styles-min.css tokens
   ============================================================ */

/* ---------- Filter bar (minimal, sticky) ---------- */
.pf-filter{position:sticky;top:0;z-index:60;background:rgba(251,252,254,.82);backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.pf-filter-inner{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;padding:14px 0}
.pf-filter-inner::-webkit-scrollbar{display:none}
.filter-btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-body);font-size:13.5px;font-weight:600;color:var(--ink-2);padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--line-2);background:transparent;white-space:nowrap;flex-shrink:0;transition:color .22s,background .22s,border-color .22s}
.filter-btn:hover{color:var(--ink);border-color:var(--ink)}
.filter-btn.active{color:#fff;background:var(--ink);border-color:var(--ink)}
.filter-btn.hidden{display:none}

/* ---------- Category blocks + grid ---------- */
.pf-main{padding:var(--section-y) 0}
.cat-block{margin-bottom:clamp(44px,5vw,72px);scroll-margin-top:130px}
.cat-block.hidden{display:none}
.cat-head{display:flex;align-items:baseline;justify-content:space-between;gap:18px;margin-bottom:clamp(30px,4vw,48px);padding-bottom:24px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.cat-head .ct{font-family:var(--font-display);font-size:clamp(1.7rem,2.9vw,2.5rem);letter-spacing:-.02em;line-height:1.05}
.cat-head .eyebrow{margin-bottom:0}
.cat-head>div{display:flex;flex-direction:column;gap:14px}
.cat-head .cc{font-size:14px;color:var(--ink-3);font-weight:600;font-family:var(--font-display);letter-spacing:.02em}

.pf-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(26px,3vw,44px) clamp(22px,2.4vw,34px)}

/* ---------- Borderless, image-forward card ---------- */
.pf-card{display:flex;flex-direction:column}
.pf-thumb{position:relative;aspect-ratio:4/3;border-radius:var(--r-md);overflow:hidden;background:var(--bg-soft);border:1px solid var(--line)}
.pf-thumb.is-clickable{cursor:zoom-in}
.pf-card:hover .pf-thumb .ph-img{transform:scale(1.05)}
.pf-thumb .pf-live{position:absolute;inset:0;z-index:4;display:grid;place-items:center;pointer-events:none;background:rgba(8,10,20,.55);backdrop-filter:blur(2px);opacity:0;transition:opacity .35s}
.pf-thumb:hover .pf-live{opacity:1}
.pf-live .btn{transform:translateY(10px);transition:transform .35s}
.pf-thumb:hover .pf-live .btn{transform:none}

.pf-body{padding:20px 2px 0;display:flex;flex-direction:column;flex:1}
.pf-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.pf-name{font-family:var(--font-display);font-size:1.3rem;font-weight:600;line-height:1.15;letter-spacing:-.02em}
.pf-idx{font-family:var(--font-display);font-size:13px;font-weight:700;color:var(--ink-3)}
.pf-url{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:12.5px;color:var(--ink-3);margin-top:7px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pf-detail{font-size:14px;color:var(--ink-2);line-height:1.55;margin-top:12px}
.pf-industry{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;color:var(--ink-3);margin-top:10px}
.pf-industry svg{width:13px;height:13px;flex-shrink:0}

.pf-cs-toggle{align-self:flex-start;margin-top:16px;display:inline-flex;align-items:center;gap:8px;font-family:var(--font-display);font-size:14px;font-weight:600;color:var(--ink);transition:color .25s}
.pf-cs-toggle:hover{color:var(--brand)}
.pf-cs-toggle .chev{display:inline-flex;transition:transform .3s}
.pf-cs-toggle .chev svg{width:15px;height:15px}
.pf-card.open .pf-cs-toggle .chev{transform:rotate(90deg)}
.pf-cs{max-height:0;overflow:hidden;transition:max-height .45s cubic-bezier(.4,0,.1,1)}
.pf-cs-inner{padding-top:16px}
.pf-cs .csh{display:flex;align-items:center;gap:8px;font-family:var(--font-display);font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);margin:16px 0 6px}
.pf-cs .csh:first-child{margin-top:0}
.pf-cs .csh .pip{width:6px;height:6px;border-radius:2px;background:var(--grad)}
.pf-cs p{font-size:13.5px;color:var(--ink-2);line-height:1.6}

.pf-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.pf-tag{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--brand)}
.pf-visit{font-family:var(--font-display);font-size:13.5px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:7px;transition:color .2s}
.pf-visit:hover{color:var(--brand)}
.pf-visit svg{width:14px;height:14px}

/* ---------- Mockup image ---------- */
.ph-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:2;transition:transform .6s cubic-bezier(.16,1,.3,1)}
.ph-img.ph-mockup{object-fit:cover;object-position:top center}

/* ---------- Branded tile (no screenshot) ---------- */
.pf-thumb-brand{background:var(--bg-ink);border-color:transparent}
.pf-brandtile{position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;align-items:flex-start;gap:7px;padding:26px;overflow:hidden;background:var(--bg-ink)}
.pf-brandtile::before{content:"";position:absolute;inset:0;background:
  radial-gradient(closest-side,rgba(236,44,91,.5),transparent 72%) var(--gx,40%) var(--gy,30%)/120% 150% no-repeat,
  radial-gradient(closest-side,rgba(109,75,246,.42),transparent 72%) calc(100% - var(--gx,40%)) calc(var(--gy,30%) + 30%)/120% 150% no-repeat;opacity:.85;transition:opacity .45s}
.pf-brandtile::after{content:"";position:absolute;inset:0;opacity:.5;background-image:linear-gradient(to right,rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.05) 1px,transparent 1px);background-size:32px 32px;-webkit-mask-image:radial-gradient(120% 100% at 30% 20%,#000,transparent 80%);mask-image:radial-gradient(120% 100% at 30% 20%,#000,transparent 80%)}
.pf-brandtile.is-figma::before{background:
  radial-gradient(closest-side,rgba(109,75,246,.5),transparent 72%) var(--gx,40%) var(--gy,30%)/120% 150% no-repeat,
  radial-gradient(closest-side,rgba(236,44,91,.4),transparent 72%) calc(100% - var(--gx,40%)) calc(var(--gy,30%) + 30%)/120% 150% no-repeat}
.pf-bt-mono{position:relative;z-index:1;font-family:var(--font-display);font-weight:700;font-size:54px;line-height:1;letter-spacing:-.04em;color:#fff;margin-bottom:auto;text-shadow:0 4px 24px rgba(0,0,0,.3)}
.pf-bt-dom{position:relative;z-index:1;font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:12.5px;color:rgba(255,255,255,.82);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
.pf-bt-kind{position:relative;z-index:1;display:inline-flex;align-items:center;gap:7px;font-size:10.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.62)}
.pf-bt-kind::before{content:"";width:6px;height:6px;border-radius:50%;background:#3ddc84;box-shadow:0 0 8px rgba(61,220,132,.8)}
.pf-brandtile.is-figma .pf-bt-kind::before{background:var(--indigo-2);box-shadow:0 0 8px rgba(139,92,246,.8)}
.pf-card:hover .pf-brandtile::before{opacity:1}

/* ---------- NDA card ---------- */
.pf-nda .pf-thumb{background:var(--bg-ink);border-color:transparent}
.pf-lock{position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;text-align:center;padding:18px;color:#e7e3da;background:var(--bg-ink)}
.pf-lock::before{content:"";position:absolute;inset:0;background:radial-gradient(closest-side,rgba(236,44,91,.34),transparent 72%) 50% 36%/120% 120% no-repeat;opacity:.7}
.pf-lock-ic{position:relative;z-index:1;display:grid;place-items:center;width:50px;height:50px;border-radius:50%;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);margin-bottom:8px}
.pf-lock-ic svg{width:22px;height:22px;color:#fff}
.pf-lock-t{position:relative;z-index:1;font-family:var(--font-display);font-weight:700;font-size:18px;letter-spacing:-.01em;color:#fff}
.pf-lock-s{position:relative;z-index:1;font-size:12.5px;color:rgba(255,255,255,.7)}
.pf-nda .pf-url{font-style:normal}
.pf-nda-url{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-body);font-size:12.5px;font-weight:600;color:var(--ink-3)}
.pf-nda-url svg{width:13px;height:13px}
.pf-nda-badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.pf-nda-badge svg{width:13px;height:13px}

/* ---------- Back to top ---------- */
#back-to-top{position:fixed;bottom:28px;right:28px;z-index:70;width:50px;height:50px;border-radius:50%;background:var(--grad);color:#fff;display:grid;place-items:center;box-shadow:var(--sh-brand);opacity:0;pointer-events:none;transform:translateY(8px);transition:opacity .3s,transform .3s}
#back-to-top.show{opacity:1;pointer-events:auto}
#back-to-top:hover{transform:translateY(-3px)}
#back-to-top svg{width:20px;height:20px}

/* ---------- Lightbox ---------- */
.lightbox{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:24px}
.lightbox.open{display:flex}
.lb-backdrop{position:absolute;inset:0;background:rgba(8,10,20,.78);backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px)}
.lb-dialog{position:relative;z-index:1;width:min(980px,100%);max-height:90vh;display:flex;flex-direction:column;background:var(--surface);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-lg);animation:lbpop .3s cubic-bezier(.16,1,.3,1)}
@keyframes lbpop{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:none}}
.lb-close{position:absolute;top:14px;right:14px;z-index:3;width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.92);display:grid;place-items:center;color:var(--ink);box-shadow:var(--sh-sm);transition:transform .25s,background .2s}
.lb-close:hover{background:#fff;transform:rotate(90deg)}
.lb-close svg{width:18px;height:18px}
.lb-stage{position:relative;background:var(--bg-soft);min-height:320px;max-height:66vh;display:grid;place-items:center;overflow:auto}
.lb-img{display:block;width:100%;height:auto;opacity:0;transition:opacity .35s}
.lb-img.ready{opacity:1}
.lb-stage.is-mockup{background:var(--bg-ink)}
.lb-stage.is-mockup .lb-img{width:auto;max-width:100%;max-height:64vh;margin:auto}
.lb-spinner{position:absolute;width:40px;height:40px;border-radius:50%;border:3px solid var(--line-2);border-top-color:var(--brand);animation:lbspin .8s linear infinite}
@keyframes lbspin{to{transform:rotate(360deg)}}
.lb-fallback{position:absolute;inset:0;display:none;flex-direction:column;align-items:center;justify-content:center;gap:6px;text-align:center;padding:28px;color:var(--ink-3);font-size:14px;line-height:1.6}
.lb-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;border-top:1px solid var(--line);flex-wrap:wrap}
.lb-name{font-family:var(--font-display);font-weight:600;font-size:16px;color:var(--ink)}
.lb-url{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:12.5px;color:var(--ink-3);margin-top:3px}
.lb-visit{flex-shrink:0}

/* ---------- Responsive ---------- */
@media (max-width:1080px){.pf-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){
  .pf-grid{grid-template-columns:1fr;gap:36px}
  .filter-btn{font-size:13px;padding:7px 14px}
  .lb-stage{min-height:240px;max-height:56vh}
  .lb-visit{width:100%;justify-content:center}
}