/* ==========================================================
   ITM Solutions — Projects / Portfolio (2026)
   Concept: a "work index" — grid wall + editorial list with a
   cursor-following preview, instant filters, and a detail dialog.
   Builds on home-2026.css primitives and site-chrome.css tokens.
   ========================================================== */

body{background:var(--ink-0)}
.pf-page{margin-top:-96px} /* run the hero under the floating nav */
.pf-page{--mono:"Geist Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;--paper:#f3efe7}

/* ---------- Hero ---------- */
.pf-hero{position:relative;padding:150px 0 48px;overflow:hidden;isolation:isolate}
.pf-hero::before{
    content:"";position:absolute;inset:0;z-index:-1;
    background:
        radial-gradient(700px 420px at 90% 0%,rgba(247,148,29,.18),transparent 60%),
        radial-gradient(700px 420px at 0% 40%,rgba(0,167,158,.16),transparent 60%);
}
.pf-hero-top{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap}
.pf-hero h1{font-size:clamp(3.2rem,9vw,8rem);letter-spacing:-.06em;line-height:.9;margin-top:22px}
.pf-hero h1 sup{
    font-family:var(--mono);font-size:.16em;letter-spacing:0;vertical-align:top;position:relative;top:.5em;margin-left:.15em;
    color:var(--orange);font-weight:500;
}
.pf-hero .lede{color:var(--muted);max-width:420px;font-size:clamp(1rem,1.3vw,1.12rem)}

/* ---------- Toolbar ---------- */
.pf-toolbar{
    position:sticky;top:96px;z-index:20;margin-top:40px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    padding:10px;border-radius:20px;background:rgba(10,14,22,.72);border:1px solid var(--line);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
}
.pf-chips{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;flex:1;min-width:0}
.pf-chips::-webkit-scrollbar{display:none}
.pf-chips button,.pf-view button{
    flex:none;display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 14px;border-radius:999px;
    font:500 14px var(--sans);color:var(--muted);background:transparent;border:1px solid transparent;cursor:pointer;
    transition:all .25s var(--ease);
}
.pf-chips button small{font-family:var(--mono);font-size:11px;opacity:.6}
.pf-chips button:hover,.pf-view button:hover{color:var(--text);background:rgba(255,255,255,.05)}
.pf-chips button[aria-pressed="true"]{color:var(--ink-0);background:var(--text)}
.pf-view{display:flex;gap:4px;padding-left:10px;border-left:1px solid var(--line)}
.pf-view button{width:38px;padding:0;justify-content:center}
.pf-view button[aria-pressed="true"]{color:var(--text);background:rgba(255,255,255,.08);border-color:var(--line-2)}
@media (max-width:640px){.pf-toolbar{top:84px}.pf-view{display:none}}

/* ---------- Grid view ---------- */
.pf-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:16px;margin-top:28px}
.pf-card{
    grid-column:span 4;position:relative;display:flex;flex-direction:column;gap:14px;
    text-align:left;background:none;border:0;padding:0;color:var(--text);cursor:pointer;
}
.pf-grid a.pf-card:nth-of-type(1),.pf-grid a.pf-card:nth-of-type(2){grid-column:span 6}
.pf-card .shot{
    position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;
    background:var(--paper);display:grid;place-items:center;
    border:1px solid var(--line);
}
.pf-card .shot img{width:100%;height:100%;object-fit:contain;padding:clamp(14px,3vw,32px);transition:transform .8s var(--ease)}
.pf-card .shot::after{ /* hover veil + CTA */
    content:"View project";position:absolute;inset:auto 14px 14px auto;
    padding:8px 14px;border-radius:999px;background:var(--ink-0);color:var(--text);font:500 13px var(--sans);
    opacity:0;transform:translateY(8px);transition:all .35s var(--ease);
}
.pf-card:hover .shot img,.pf-card:focus-visible .shot img{transform:scale(1.05)}
.pf-card:hover .shot::after,.pf-card:focus-visible .shot::after{opacity:1;transform:none}
.pf-card .info{display:flex;justify-content:space-between;align-items:baseline;gap:16px}
.pf-card h3{font-size:clamp(1.2rem,1.8vw,1.5rem);letter-spacing:-.03em;line-height:1.15}
.pf-card .cat{font-family:var(--mono);font-size:12px;color:var(--dim);white-space:nowrap}
.pf-card .num{position:absolute;left:14px;top:12px;font-family:var(--mono);font-size:11px;color:rgba(5,7,12,.55);z-index:1}
@media (max-width:1000px){.pf-card,.pf-grid a.pf-card:nth-of-type(1),.pf-grid a.pf-card:nth-of-type(2){grid-column:span 6}}
@media (max-width:600px){.pf-card,.pf-grid a.pf-card:nth-of-type(1),.pf-grid a.pf-card:nth-of-type(2){grid-column:span 12}}

/* ---------- List view ---------- */
.pf-grid.as-list{display:block;margin-top:20px;border-top:1px solid var(--line-2)}
.pf-grid.as-list .pf-card{
    display:grid;grid-template-columns:64px 1fr 220px 32px;align-items:center;gap:20px;
    width:100%;padding:24px 8px;border-bottom:1px solid var(--line-2);position:relative;overflow:hidden;
}
.pf-grid.as-list .pf-card::before{
    content:"";position:absolute;inset:0;z-index:-1;background:var(--grad);opacity:.1;
    transform:scaleY(0);transform-origin:bottom;transition:transform .45s var(--ease);
}
.pf-grid.as-list .pf-card:hover::before{transform:scaleY(1)}
.pf-grid.as-list .shot{display:none}
.pf-grid.as-list .num{position:static;color:var(--dim);font-size:12px}
.pf-grid.as-list .info{display:contents}
.pf-grid.as-list h3{font-size:clamp(1.6rem,3.4vw,2.8rem);letter-spacing:-.045em;transition:transform .45s var(--ease)}
.pf-grid.as-list .pf-card:hover h3{transform:translateX(10px)}
.pf-grid.as-list .cat{font-size:12.5px}
.pf-grid.as-list .arr{display:block;color:var(--muted);transition:transform .35s var(--ease)}
.pf-grid.as-list .pf-card:hover .arr{transform:rotate(-45deg);color:var(--text)}
.pf-card .arr{display:none}

/* floating preview that follows the cursor in list view */
.pf-float{
    position:fixed;left:0;top:0;z-index:30;width:300px;aspect-ratio:4/3;border-radius:18px;overflow:hidden;
    background:var(--paper);pointer-events:none;opacity:0;transform:translate(-50%,-50%) scale(.85) rotate(-3deg);
    transition:opacity .25s var(--ease),transform .35s var(--ease);box-shadow:0 30px 80px -20px rgba(0,0,0,.8);
}
.pf-float.on{opacity:1;transform:translate(-50%,-50%) scale(1) rotate(-3deg)}
.pf-float img{width:100%;height:100%;object-fit:contain;padding:18px}
@media (hover:none){.pf-float{display:none}}

/* filtering */
.pf-card[hidden]{display:none!important}

/* ---------- Empty state ---------- */
.pf-empty{
    margin-top:28px;border:1px dashed var(--line-2);border-radius:var(--radius-lg);
    padding:clamp(40px,7vw,90px) 24px;text-align:center;display:grid;justify-items:center;gap:16px;
}
.pf-empty .icon{width:64px;height:64px;border-radius:18px;display:grid;place-items:center;font-size:22px;color:var(--orange);background:rgba(247,148,29,.1)}
.pf-empty h2{font-size:clamp(1.8rem,3.6vw,2.8rem)}
.pf-empty p{color:var(--muted);max-width:460px}

/* ---------- Detail dialog ---------- */
.pf-dialog{
    width:min(1080px,calc(100% - 24px));max-height:calc(100% - 24px);padding:0;border:1px solid var(--line-2);
    border-radius:var(--radius-lg);background:var(--ink-1);color:var(--text);overflow:auto;
    font-family:var(--sans);
}
.pf-dialog:not([open]){display:none} /* legacy CSS forces dialog visible */
.pf-dialog::backdrop{background:rgba(5,7,12,.7);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.pf-dialog[open]{animation:dlgIn .45s var(--ease)}
@keyframes dlgIn{from{opacity:0;transform:translateY(24px) scale(.98)}to{opacity:1;transform:none}}
.pf-dialog .dlg{display:grid;grid-template-columns:1.1fr .9fr}
.pf-dialog .dlg-media{background:var(--paper);display:grid;place-items:center;min-height:420px;padding:clamp(20px,4vw,48px)}
.pf-dialog .dlg-media img{max-width:100%;max-height:60vh;object-fit:contain}
.pf-dialog .dlg-body{padding:clamp(24px,4vw,44px);display:flex;flex-direction:column;gap:16px}
.pf-dialog .dlg-cat{font-family:var(--mono);font-size:12px;color:var(--orange);letter-spacing:.06em;text-transform:uppercase}
.pf-dialog h2{font-size:clamp(1.8rem,3.4vw,2.8rem);letter-spacing:-.045em;line-height:1.02;margin:0;color:var(--text);font-weight:600}
.pf-dialog .dlg-text,.pf-dialog .dlg-text p{color:var(--muted);font-size:16px;line-height:1.65;margin:0 0 10px}
.pf-dialog .dlg-text strong{color:var(--text)}
.pf-dialog .dlg-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto;padding-top:12px}
.pf-dialog .dlg-close{
    position:absolute;top:14px;right:14px;width:42px;height:42px;border-radius:999px;cursor:pointer;
    border:1px solid rgba(5,7,12,.15);background:rgba(255,255,255,.8);color:var(--ink-0);font-size:15px;z-index:2;
}
.pf-dialog .dlg-nav{display:flex;gap:8px}
.pf-dialog .dlg-nav button{
    width:42px;height:42px;border-radius:999px;border:1px solid var(--line-2);background:transparent;color:var(--text);cursor:pointer;
}
.pf-dialog .dlg-nav button:hover{background:rgba(255,255,255,.06)}
@media (max-width:860px){.pf-dialog .dlg{grid-template-columns:1fr}.pf-dialog .dlg-media{min-height:240px}}

@media (prefers-reduced-motion:reduce){
    .pf-dialog[open]{animation:none}
    .pf-card .shot img,.pf-float{transition:none}
}