/* ==========================================================================
   RDLAB — Portfolio & Case Study — DARK side of the "Dark Editorial Hybrid".
   Scoped under .rpf. Layout/interaction unchanged from the approved version;
   only surfaces, colors and the hover glow are re-themed to dark.
   ========================================================================== */
:root{ --red-bright:#d4222c; }

.rpf{
  /* dark palette (token names kept; values flipped light→dark) */
  --paper:#0b0b0d; --paper-2:#151418;
  --ink:#f2f0ec; --ink-soft:#cbc9cf; --lo:rgba(242,240,236,.60); --lo-2:rgba(242,240,236,.34);
  --line:rgba(255,255,255,.09); --line-2:rgba(255,255,255,.17);
  --accent:#d4222c; --chrome:#1c1b20;
  --rpf-display:'Space Grotesk', ui-sans-serif, system-ui, sans-serif;
  --rpf-mono:'IBM Plex Mono', ui-monospace, monospace;
  --rpf-body:'Inter', ui-sans-serif, system-ui, sans-serif;
  --rpf-max:1180px;

  background:var(--paper);
  color:var(--ink);
  font-family:var(--rpf-body);
  font-size:16px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
/* whole page canvas dark (only loads on portfolio/case pages) */
body{ background:#0b0b0d; }
body::before{ display:none; }

.rpf *{box-sizing:border-box}
.rpf a{color:inherit; text-decoration:none}
.rpf-wrap{max-width:var(--rpf-max); margin:0 auto; padding:0 28px}

/* mono/utility bits */
.rpf-eyebrow{font-family:var(--rpf-mono); font-size:12.5px; letter-spacing:.22em; text-transform:uppercase; color:var(--lo); display:flex; align-items:center; gap:12px}
.rpf-eyebrow::before{content:""; width:26px; height:1px; background:var(--accent)}
.rpf-sec-label{font-family:var(--rpf-mono); font-size:12px; letter-spacing:.2em; text-transform:uppercase; color:var(--lo)}

/* buttons → red pill (cohesive with the hybrid system) */
.rpf-btn{display:inline-flex; align-items:center; gap:9px; font-family:var(--rpf-mono); font-size:13px; letter-spacing:.02em; padding:12px 22px; border-radius:2px; cursor:pointer; transition:.24s cubic-bezier(.16,1,.3,1); border:1px solid transparent}
.rpf-btn.primary{background:var(--accent); color:#fff; border-color:var(--accent)}
.rpf-btn.primary:hover{background:#e2333c; border-color:#e2333c; transform:translateY(-1px); box-shadow:0 14px 30px -14px rgba(181,18,27,.6)}
.rpf-btn.ghost{border:1px solid var(--line-2); color:var(--ink); background:transparent}
.rpf-btn.ghost:hover{border-color:var(--ink); background:rgba(255,255,255,.05)}
.rpf-btn.disabled{border:1px dashed var(--line-2); color:var(--lo-2); background:transparent; cursor:not-allowed}
.rpf-btn .arw{transition:transform .18s}
.rpf-btn:hover .arw{transform:translate(3px,-3px)}

/* status pill */
.rpf-status{display:inline-flex; align-items:center; gap:8px; font-family:var(--rpf-mono); font-size:12px; color:var(--lo)}
.rpf-status .dot{width:7px; height:7px; border-radius:50%; background:#3ecb63; box-shadow:0 0 0 3px rgba(62,203,99,.16)}
.rpf-status.concept .dot{background:var(--lo-2); box-shadow:0 0 0 3px rgba(242,240,236,.10)}

/* browser frame — the signature element */
/* Deliberate framed screen: sharp 2px, 1px hairline, soft red-tinted ambient glow
   beneath (not a generic browser mockup). Chrome simplified to a minimal URL bar. */
.rpf-browser{position:relative; display:block; border-radius:2px; overflow:hidden; background:var(--paper-2); border:1px solid rgba(255,255,255,.10);
  box-shadow:0 28px 60px -34px rgba(0,0,0,.72), 0 46px 120px -60px rgba(212,34,44,.30);
  transition:transform .5s cubic-bezier(.2,.7,.2,1), box-shadow .5s, border-color .5s}
.rpf-browser:hover{transform:translateY(-6px); border-color:rgba(212,34,44,.45);
  box-shadow:0 44px 88px -34px rgba(0,0,0,.82), 0 58px 150px -60px rgba(212,34,44,.46)}
.rpf-chrome{display:flex; align-items:center; gap:0; height:40px; padding:0 12px; background:var(--chrome); border-bottom:1px solid var(--line)}
.rpf-dots{display:none} /* dropped the macOS traffic-lights for a cleaner minimal bar */
.rpf-url{flex:1; display:flex; align-items:center; gap:9px; height:26px; padding:0 12px; border-radius:2px; background:#0c0c0f; border:1px solid var(--line); font-family:var(--rpf-mono); font-size:12px; color:var(--lo); overflow:hidden; white-space:nowrap; text-overflow:ellipsis}
.rpf-url .lock{width:7px; height:7px; border-radius:50%; background:var(--accent); box-shadow:0 0 0 3px rgba(212,34,44,.18); flex:0 0 7px}
.rpf-viewport{position:relative; height:440px; overflow:hidden; background:#0c0c0f}
/* Slow, readable walkthrough: quick return by default, ~11s eased scroll on hover. */
.rpf-viewport img{width:100%; display:block; transform:translateY(0); transition:transform 1.1s cubic-bezier(.16,1,.3,1)}
.rpf-browser:hover .rpf-viewport img{transform:translateY(calc(-100% + 440px)); transition-duration:11s; transition-timing-function:cubic-bezier(.4,0,.35,1)}
.rpf-viewport--tall{height:560px}
.rpf-browser:hover .rpf-viewport--tall img{transform:translateY(calc(-100% + 560px))}
.rpf-viewport--empty{display:flex; align-items:center; justify-content:center; background:
  radial-gradient(600px 200px at 20% 10%, rgba(212,34,44,.14), transparent 60%),
  radial-gradient(600px 200px at 85% 20%, rgba(255,255,255,.04), transparent 60%), var(--paper-2)}
.rpf-viewport--empty span{font-family:var(--rpf-mono); font-size:12px; color:var(--lo-2); letter-spacing:.08em}
.rpf-scrollhint{position:absolute; right:14px; bottom:14px; z-index:3; font-family:var(--rpf-mono); font-size:11px; letter-spacing:.06em; color:var(--ink); background:rgba(11,11,13,.72); backdrop-filter:blur(6px); padding:6px 11px; border-radius:2px; border:1px solid var(--line-2); display:flex; align-items:center; gap:7px; transition:.3s; box-shadow:0 6px 16px -8px rgba(0,0,0,.6)}
.rpf-browser:hover .rpf-scrollhint{opacity:0}
.rpf-scrollhint span{width:5px; height:5px; border-radius:50%; background:var(--accent)}

/* ============================ ARCHIVE ============================ */
.rpf-hero{padding:84px 0 34px; border-bottom:1px solid var(--line)}
.rpf-hero h1{font-family:var(--rpf-display); font-weight:500; font-size:clamp(42px, 7vw, 88px); line-height:1.02; letter-spacing:-.03em; margin:22px 0 0; max-width:15ch; color:var(--ink)}
.rpf-hero h1 em{font-style:normal; color:var(--accent)}
.rpf-hero-foot{display:flex; justify-content:space-between; align-items:flex-end; gap:24px; margin-top:38px; flex-wrap:wrap}
.rpf-hero-foot p{max-width:48ch; color:var(--lo); margin:0}
.rpf-count{font-family:var(--rpf-mono); font-size:13px; color:var(--lo); white-space:nowrap}
.rpf-count b{color:var(--ink)}

.rpf-filters{display:flex; gap:10px; flex-wrap:wrap; padding:28px 0 6px}
.rpf-chip{font-family:var(--rpf-mono); font-size:12.5px; letter-spacing:.02em; padding:9px 15px; border-radius:2px; border:1px solid var(--line-2); color:var(--lo); background:transparent; cursor:pointer; transition:.2s}
.rpf-chip:hover{color:var(--ink); border-color:var(--ink)}
.rpf-chip.active{background:var(--accent); color:#fff; border-color:var(--accent)}

.rpf-rows{padding:22px 0 30px}
.rpf-row{display:grid; grid-template-columns:1.15fr .85fr; gap:56px; align-items:center; padding:60px 0; border-top:1px solid var(--line)}
.rpf-row:nth-child(even) .rpf-browser{order:2}
.rpf-row:nth-child(even) .rpf-info{order:1}

.rpf-idx{font-family:var(--rpf-mono); font-size:13px; color:var(--accent); letter-spacing:.06em}
.rpf-info h2{font-family:var(--rpf-display); font-weight:600; font-size:clamp(28px,3.4vw,40px); letter-spacing:-.025em; line-height:1.04; margin:14px 0 0; color:var(--ink)}
.rpf-type{font-family:var(--rpf-mono); font-size:12.5px; letter-spacing:.06em; color:var(--lo); text-transform:uppercase; margin-top:12px}
.rpf-list{list-style:none; margin:22px 0 0; padding:0; display:grid; gap:11px}
.rpf-list li{display:flex; gap:12px; color:var(--ink-soft); font-size:15px}
.rpf-list li::before{content:""; margin-top:9px; width:16px; height:1px; background:var(--accent); flex:0 0 16px}
.rpf-tags{display:flex; gap:8px; flex-wrap:wrap; margin-top:22px}
.rpf-tag{font-family:var(--rpf-mono); font-size:11.5px; color:var(--lo); border:1px solid var(--line); padding:5px 10px; border-radius:2px}
.rpf-actions{display:flex; gap:12px; margin-top:26px; flex-wrap:wrap; align-items:center}

.rpf-closer{border-top:1px solid var(--line); padding:96px 0 110px; text-align:center}
.rpf-closer h2{font-family:var(--rpf-display); font-weight:500; font-size:clamp(32px,5vw,56px); letter-spacing:-.03em; margin:0 auto; max-width:16ch; line-height:1.05; color:var(--ink)}
.rpf-closer p{color:var(--lo); margin:20px auto 32px; max-width:44ch}

.rpf-empty{padding:70px 0; border-top:1px solid var(--line)}
.rpf-empty h2{font-family:var(--rpf-display); font-weight:600; font-size:22px; margin:0 0 8px}
.rpf-empty p{color:var(--lo); margin:0}

/* ============================ SINGLE ============================ */
.rpf-head{padding:42px 0 28px}
.rpf-crumbs{display:flex; justify-content:space-between; align-items:center; margin-bottom:30px; gap:16px}
.rpf-backlink{font-family:var(--rpf-mono); font-size:12.5px; color:var(--lo)}
.rpf-backlink:hover{color:var(--ink)}
.rpf-head h1{font-family:var(--rpf-display); font-weight:600; font-size:clamp(38px,6vw,70px); line-height:1.0; letter-spacing:-.03em; margin:18px 0 0; max-width:15ch; color:var(--ink)}
.rpf-summary{font-size:clamp(16px,2vw,19px); color:var(--ink-soft); max-width:62ch; margin:20px 0 0; line-height:1.5}
.rpf-metarow{display:flex; gap:26px; flex-wrap:wrap; margin-top:26px; padding-top:22px; border-top:1px solid var(--line); font-family:var(--rpf-mono); font-size:12.5px; color:var(--lo)}
.rpf-metarow .label{letter-spacing:.14em; text-transform:uppercase; font-size:11px}
.rpf-metarow b{display:block; color:var(--ink); font-weight:500; margin-top:5px; letter-spacing:0}
.rpf-herowrap{max-width:var(--rpf-max); margin:0 auto; padding:0 28px 8px}

.rpf-sec{padding:66px 0; border-top:1px solid var(--line)}
.rpf-sec h2{font-family:var(--rpf-display); font-weight:600; font-size:clamp(26px,3vw,36px); letter-spacing:-.02em; margin:14px 0 0}

.rpf-brief{display:grid; grid-template-columns:1fr 1fr; gap:56px}
.rpf-brief h2{font-family:var(--rpf-display); font-weight:600; font-size:22px; margin:14px 0 14px; letter-spacing:-.01em; line-height:1.15}
.rpf-brief p{color:var(--ink-soft); margin:0 0 18px}
.rpf-brief ul{list-style:none; margin:0; padding:0; display:grid; gap:11px}
.rpf-brief li{display:flex; gap:12px; color:var(--ink-soft); font-size:15px}
.rpf-brief li::before{content:""; margin-top:9px; width:16px; height:1px; background:var(--accent); flex:0 0 16px}

.rpf-mods{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; margin-top:34px; background:var(--line); border:1px solid var(--line); border-radius:2px; overflow:hidden}
.rpf-mod{background:var(--paper-2); padding:26px 24px}
.rpf-mod .n{font-family:var(--rpf-mono); font-size:12px; color:var(--accent)}
.rpf-mod h3{font-family:var(--rpf-display); font-weight:600; font-size:17px; margin:14px 0 8px; letter-spacing:-.01em; line-height:1.2}
.rpf-mod p{margin:0; color:var(--lo); font-size:14.5px; line-height:1.55}

.rpf-kpis{display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:16px; margin-top:34px}
.rpf-kpi{border:1px solid var(--line); border-radius:2px; padding:22px 20px; background:var(--paper-2)}
.rpf-kpi b{display:block; font-family:var(--rpf-display); font-size:30px; font-weight:600; letter-spacing:-.02em}
.rpf-kpi span{color:var(--lo); font-family:var(--rpf-mono); font-size:12px; letter-spacing:.04em; margin-top:6px; display:block}

.rpf-gal{display:grid; grid-template-columns:300px 1fr; gap:34px; margin-top:34px; align-items:start}
.rpf-phone{position:relative; width:300px; border-radius:2px; background:#000; padding:10px; box-shadow:0 40px 80px -34px rgba(0,0,0,.8)}
.rpf-phone::before{content:""; position:absolute; top:20px; left:50%; transform:translateX(-50%); width:110px; height:22px; background:#000; border-radius:0 0 2px 2px; z-index:3}
.rpf-pscreen{position:relative; border-radius:2px; overflow:hidden; height:600px; background:#0c0c0f}
.rpf-pscreen img{width:100%; display:block; transform:translateY(0); transition:transform 1.1s cubic-bezier(.16,1,.3,1)}
.rpf-phone:hover .rpf-pscreen img{transform:translateY(calc(-100% + 600px)); transition-duration:12s; transition-timing-function:cubic-bezier(.4,0,.35,1)}
.rpf-gal-stack{display:grid; gap:20px}
.rpf-crop{border-radius:2px; overflow:hidden; border:1px solid var(--line); box-shadow:0 24px 50px -30px rgba(0,0,0,.7)}
.rpf-crop img{width:100%; display:block}
.rpf-gal-note{font-family:var(--rpf-mono); font-size:11.5px; color:var(--lo-2); margin-top:10px; letter-spacing:.04em}

.rpf-cta{display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:start}
.rpf-cta h2{font-family:var(--rpf-display); font-weight:600; font-size:clamp(26px,3.4vw,38px); letter-spacing:-.02em; margin:0}
.rpf-cta p{color:var(--ink-soft); margin:16px 0 0; max-width:42ch}
.rpf-cta form{display:grid; gap:12px; margin:0}
.rpf-frm-row{display:grid; grid-template-columns:1fr 1fr; gap:12px}
.rpf input, .rpf textarea{width:100%; padding:14px 15px; border-radius:2px; border:1px solid var(--line-2); background:var(--paper-2); font-family:var(--rpf-body); font-size:15px; color:var(--ink); outline:none; transition:.15s; font-weight:400}
.rpf input:focus, .rpf textarea:focus{border-color:var(--accent)}
.rpf input::placeholder, .rpf textarea::placeholder{color:var(--lo-2)}
.rpf textarea{min-height:110px; resize:vertical}
.rpf-cta form .rpf-btn.primary{justify-content:center; padding:15px}
.rpf-note{margin-top:12px; font-family:var(--rpf-mono); font-size:12px; color:var(--lo)}
.rpf-formmsg{font-family:var(--rpf-mono); font-size:12.5px; padding:10px 12px; border-radius:2px; border:1px solid var(--line-2); color:var(--ink); margin-bottom:6px}

.rpf-nextproj{border-top:1px solid var(--line); padding:40px 0 84px; display:flex; justify-content:space-between; align-items:center; gap:20px}
.rpf-np-label{font-family:var(--rpf-mono); font-size:12px; letter-spacing:.14em; text-transform:uppercase; color:var(--lo)}
.rpf-np-title{font-family:var(--rpf-display); font-weight:600; font-size:clamp(24px,3vw,34px); letter-spacing:-.02em; margin-top:8px; color:var(--ink)}
.rpf-nextproj a:hover .rpf-np-title{color:var(--accent)}

/* lightbox (reused by gallery) */
.rpf-lightbox{position:fixed; inset:0; background:rgba(6,6,8,.9); display:none; align-items:center; justify-content:center; z-index:2000; padding:24px}
.rpf-lightbox.open{display:flex}
.rpf-lightbox img{max-width:min(1100px,92vw); max-height:86vh; width:auto; height:auto; border-radius:2px; box-shadow:0 30px 70px rgba(0,0,0,.6); background:#0c0c0f}
.rpf-lightbox .lb-btn{position:absolute; border:1px solid rgba(255,255,255,.28); background:rgba(11,11,13,.65); color:#fff; font-family:var(--rpf-mono); width:42px; height:42px; border-radius:2px; cursor:pointer; font-size:15px}
.rpf-lightbox .lb-close{top:20px; right:20px}
.rpf-lightbox .lb-prev{left:20px} .rpf-lightbox .lb-next{right:20px}

/* ============================ RESPONSIVE ============================ */
@media (max-width:900px){
  .rpf-row{grid-template-columns:1fr; gap:28px; padding:44px 0}
  .rpf-row:nth-child(even) .rpf-browser{order:0}
  .rpf-row:nth-child(even) .rpf-info{order:0}
  .rpf-viewport{height:340px}
  .rpf-browser:hover .rpf-viewport img{transform:translateY(calc(-100% + 340px))}
  .rpf-viewport--tall{height:340px}
  .rpf-browser:hover .rpf-viewport--tall img{transform:translateY(calc(-100% + 340px))}
  .rpf-hero{padding:56px 0 26px}
  .rpf-brief, .rpf-cta{grid-template-columns:1fr; gap:30px}
  .rpf-mods{grid-template-columns:1fr}
  .rpf-gal{grid-template-columns:1fr; justify-items:center}
  .rpf-frm-row{grid-template-columns:1fr}
  .rpf-nextproj{flex-direction:column; align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  .rpf-viewport img, .rpf-pscreen img, .rpf-browser{transition:none}
  .rpf-browser:hover .rpf-viewport img, .rpf-phone:hover .rpf-pscreen img{transform:none}
}

/* ===================== SIGNATURE "WOW" — Portfolio ===================== */
/* 3. animated gradient border trace + stronger red ambient glow on the frame */
.rpf-browser::after{
  content:""; position:absolute; inset:0; border-radius:inherit; padding:1.5px; z-index:4; pointer-events:none;
  background:conic-gradient(from var(--wow-angle), transparent 0deg, var(--accent) 70deg, var(--red-bright) 150deg, var(--gold) 235deg, transparent 320deg);
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite:xor;
  mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); mask-composite:exclude;
  opacity:0; transition:opacity .4s ease;
}
.rpf-browser:hover::after{ opacity:1; animation:wow-trace 3s linear infinite; }
.rpf-browser:hover{ box-shadow:0 44px 88px -34px rgba(0,0,0,.82), 0 58px 150px -60px rgba(212,34,44,.55); }
@media (prefers-reduced-motion:reduce){
  .rpf-browser::after{ transition:none; }
  .rpf-browser:hover::after{ animation:none; }
}