:root{
    --ink:#1C1B19;
    --plaster:#E8E6E0;
    --plaster-2:#DEDBD3;
    --steel:#565A5C;
    --steel-soft:#8B8F90;
    --brass:#AD7233;
    --brass-bright:#C98A42;
    --blueprint:#2E4A52;
    --blueprint-bright:#3F6570;
    --line:rgba(232,230,224,0.14);
    --line-dark:rgba(28,27,25,0.12);
    --radius:2px;
    --ease:cubic-bezier(.22,.61,.36,1);
  }
  *{box-sizing:border-box;}
  /* Any class below that also sets `display` (e.g. .btn, .image-preview) would
     otherwise silently defeat the native [hidden] attribute — author rules of
     any specificity beat the UA stylesheet's [hidden]{display:none} default. */
  [hidden]{display:none !important;}
  html{scroll-behavior:smooth;}
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
  }
  body{
    margin:0;
    background:var(--plaster);
    color:var(--ink);
    font-family:'Inter',sans-serif;
    font-size:16px;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0; font-family:'Space Grotesk',sans-serif; font-weight:600; letter-spacing:-0.01em;}
  p{margin:0;}
  a{color:inherit; text-decoration:none;}
  img{max-width:100%; display:block;}
  .mono{font-family:'IBM Plex Mono',monospace; letter-spacing:0.02em;}
  .eyebrow{
    font-size:0.72rem;
    letter-spacing:0.18em;
    color:var(--brass);
    display:flex;
    align-items:center;
    gap:0.6rem;
  }
  .eyebrow::before{content:''; width:22px; height:1px; background:var(--brass);}
  .wrap{max-width:1180px; margin:0 auto; padding:0 32px;}
  @media (max-width:640px){ .wrap{padding:0 20px;} }

  /* shared: uppercase mono label styling, reused across eyebrows/tags/labels */
  .eyebrow,
  .logo-text span,
  .split-panel .tag,
  .proj-body .tag,
  .post-meta,
  .post-full .meta-line,
  .contact-info .item .lbl,
  .field label,
  .foot-col h5,
  .ba-label{
    font-family:'IBM Plex Mono',monospace;
    text-transform:uppercase;
  }

  /* ---------- signature chalk-line ---------- */
  #chalkline{
    position:fixed;
    left:14px;
    top:0;
    width:2px;
    height:100vh;
    background:linear-gradient(var(--brass), var(--blueprint));
    transform-origin:top;
    transform:scaleY(0);
    z-index:5;
    pointer-events:none;
  }
  @media (max-width:900px){ #chalkline{display:none;} }

  /* ---------- header ---------- */
  header{
    position:fixed; top:0; left:0; right:0; z-index:100;
    background:rgba(28,27,25,0.92);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
  }
  .nav{
    display:flex; align-items:center; justify-content:space-between;
    padding:16px 32px; max-width:1180px; margin:0 auto;
  }
  .logo{display:flex; align-items:center; gap:12px; color:var(--plaster);}
  .logo svg{width:34px; height:34px; overflow:visible;}
  .logo img{height:52px; width:auto; display:block;}
  .logo-path{
    fill:none; stroke:var(--brass); stroke-width:2.4;
    stroke-linecap:round;
    stroke-dasharray:220; stroke-dashoffset:220;
    animation:draw 2.2s var(--ease) 0.3s forwards;
  }
  @keyframes draw{ to{stroke-dashoffset:0;} }
  .logo-text{font-family:'Space Grotesk',sans-serif; font-weight:600; font-size:1.05rem; line-height:1.15;}
  .logo-text span{display:block; font-size:0.62rem; letter-spacing:0.16em; color:var(--steel-soft); font-weight:400; margin-top:2px;}
  nav.links{display:flex; align-items:center; gap:36px;}
  nav.links a{
    color:var(--plaster); font-size:0.88rem; font-weight:500;
    position:relative; padding:4px 0;
  }
  nav.links a::after{
    content:''; position:absolute; left:0; bottom:-2px; width:0; height:1px;
    background:var(--brass); transition:width 0.25s var(--ease);
  }
  nav.links a:hover::after, nav.links a.active::after{width:100%;}
  nav.links a.active{color:var(--brass-bright);}
  .nav-cta{
    background:var(--brass); color:var(--ink); font-weight:600; font-size:0.85rem;
    padding:134px 138px; border-radius:var(--radius); border:1px solid var(--brass);
    transition:background 0.2s, color 0.2s;
  }
  .nav-cta:hover{
    background:transparent; color:var(--brass-bright);
  }
  .burger{display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px; z-index:110;}
  .burger span{width:24px; height:2px; background:var(--plaster); transition:all 0.25s var(--ease);}
  .burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .burger.open span:nth-child(2){opacity:0;}
  .burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  @media (max-width:900px){
    nav.links{
      position:fixed; top:0; right:0; height:100vh; width:min(320px,80vw);
      background:var(--ink); flex-direction:column; justify-content:center; align-items:flex-start;
      gap:28px; padding:40px; transform:translateX(100%); transition:transform 0.35s var(--ease);
      border-left:1px solid var(--line);
    }
    nav.links.open{transform:translateX(0);}
    nav.links a{font-size:1.1rem;}
    .nav-cta{
        margin-top:12px;
        padding:40px;
    }
    .burger{display:flex;}
  }

  /* ---------- hero ---------- */
  .hero{
    background:var(--ink); color:var(--plaster);
    padding:168px 0 100px;
    position:relative; overflow:hidden;
  }
  .hero::after{
    content:''; position:absolute; right:-6%; top:0; width:66%; height:100%;
    background:radial-gradient(ellipse at 70% 55%, rgba(201,138,66,0.14), transparent 60%);
    pointer-events:none; z-index:1;
  }
  .hero-arch{
    position:absolute; inset:0; z-index:0;
  }
  /* Two photos cross-fading in and out of each other, each with its own slow
     Ken Burns zoom. Both animations share one 16s cycle; the second slide's
     delay is offset by exactly half of it (8s) so as one image finishes
     fading out the other is finishing its fade in — a continuous loop with
     no jump cut. Kept to a small scale (1 -> 1.04) on purpose: these source
     photos are a fixed ~736px wide, and a full-bleed hero (no max-width) is
     already displaying them well past 1:1 on most screens before any zoom —
     more scale would only add visible softness on top of that — same
     upscale-vs-zoom trade-off as the single hero photo this replaced. */
  .hero-arch .hero-slide{
    position:absolute; inset:0;
    width:100%; height:100%; object-fit:cover; object-position:center 65%;
    filter:saturate(0.95) contrast(1.04);
    opacity:0;
    animation:heroCrossfade 16s ease-in-out infinite, heroZoom 16s ease-in-out infinite;
    transform-origin:60% 55%;
  }
  .hero-arch .hero-slide:first-child{ animation-delay:0s, 0s; }
  .hero-arch .hero-slide:last-child{ animation-delay:8s, 8s; }
  @keyframes heroCrossfade{
    0%{ opacity:0; }
    9%{ opacity:1; }
    41%{ opacity:1; }
    50%{ opacity:0; }
    100%{ opacity:0; }
  }
  @keyframes heroZoom{
    0%{ transform:scale(1); }
    100%{ transform:scale(1.04); }
  }
  @media (prefers-reduced-motion: reduce){
    .hero-arch .hero-slide{ animation:none; opacity:0; }
    .hero-arch .hero-slide:first-child{ opacity:1; }
  }
  .hero-scrim{
    position:absolute; inset:0; z-index:2;
    background:linear-gradient(90deg, var(--ink) 0%, var(--ink) 20%, rgba(28,27,25,0.82) 40%, rgba(28,27,25,0.35) 66%, rgba(28,27,25,0.12) 100%);
    pointer-events:none;
  }
  @media (max-width:900px){
    .hero-scrim{background:linear-gradient(180deg, rgba(28,27,25,0.35) 0%, var(--ink) 68%, var(--ink) 100%);}
  }
  .hero-grid{display:grid; grid-template-columns:1.3fr 1fr; gap:60px; align-items:end; position:relative; z-index:3;}
  @media (max-width:900px){ .hero-grid{grid-template-columns:1fr; gap:36px;} }
  .hero h1{
    font-size:clamp(2.4rem, 5.4vw, 4.4rem);
    line-height:1.04;
    margin-top:18px;
    max-width:14ch;
    animation:heroFadeUp 1s var(--ease) 0.2s both;
  }
  @keyframes heroFadeUp{
    from{ opacity:0; transform:translateY(16px); }
    to{ opacity:1; transform:translateY(0); }
  }
  @media (prefers-reduced-motion: reduce){
    .hero h1{ animation:none; }
  }
  .hero h1 em{
    font-family:'Fraunces',serif; font-style:italic; font-weight:500; color:var(--brass-bright);
  }
  .hero-sub{margin-top:24px; max-width:44ch; color:var(--steel-soft); font-size:1.05rem;}
  .hero-actions{display:flex; gap:16px; margin-top:36px; flex-wrap:wrap;}
  .btn{
    display:inline-flex; align-items:center; gap:8px;
    padding:14px 26px; border-radius:var(--radius); font-weight:600; font-size:0.92rem;
    transition:all 0.22s var(--ease); border:1px solid transparent; cursor:pointer;
  }
  .btn-primary{background:var(--brass); color:var(--ink);}
  .btn-primary:hover{background:var(--brass-bright); transform:translateY(-2px);}
  .btn-ghost{border-color:var(--line); color:var(--plaster);}
  .btn-ghost:hover{border-color:var(--brass); color:var(--brass-bright);}

  .hero-specs{
    border:1px solid rgba(173,114,51,0.35); padding:26px; border-radius:var(--radius);
    background:rgba(28,27,25,0.62);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    box-shadow:0 20px 50px rgba(0,0,0,0.35);
    position:relative;
    overflow:hidden;
  }
  .hero-specs::before{
    content:''; position:absolute; top:0; left:0; right:0; height:2px;
    background:linear-gradient(90deg, var(--brass), var(--blueprint-bright));
  }
  .hero-specs .row{display:flex; justify-content:space-between; padding:12px 0; border-bottom:1px solid rgba(232,230,224,0.12); font-size:0.9rem;}
  .hero-specs .row:last-child{border-bottom:none;}
  .hero-specs .row span:first-child{color:var(--plaster); opacity:0.72;}
  .hero-specs .row span:last-child{
    font-family:'IBM Plex Mono',monospace; color:var(--brass-bright); font-weight:500;
    text-shadow:0 0 18px rgba(201,138,66,0.35);
  }

  /* ---------- section shell ---------- */
  section{padding:104px 0; position:relative;}
  .section-alt{background:var(--plaster-2);}
  .section-head{max-width:640px; margin-bottom:56px;}
  .section-head h2{font-size:clamp(1.8rem,3.4vw,2.6rem); margin-top:14px;}
  .reveal{opacity:0; transform:translateY(24px); transition:opacity 0.7s var(--ease), transform 0.7s var(--ease);}
  .reveal.in{opacity:1; transform:translateY(0);}

  /* ---------- duality split ---------- */
  .split{padding:0; display:grid; grid-template-columns:1fr 1fr;}
  @media (max-width:900px){ .split{grid-template-columns:1fr;} }
  .split-panel{padding:100px 48px; position:relative;}
  @media (max-width:640px){ .split-panel{padding:64px 24px;} }
  .split-panel.structure{background:var(--ink); color:var(--plaster);}
  .split-panel.interior{background:var(--plaster-2); color:var(--ink);}
  .split-panel .tag{
    font-size:0.72rem; letter-spacing:0.16em;
  }
  .structure .tag{color:var(--blueprint-bright);}
  .interior .tag{color:var(--brass);}
  .split-panel h3{font-size:clamp(1.5rem,3vw,2.1rem); margin-top:16px; max-width:12ch;}
  .interior h3{font-family:'Fraunces',serif; font-style:italic; font-weight:500;}
  .split-panel p.desc{margin-top:18px; max-width:38ch; opacity:0.85;}
  .split-panel ul{list-style:none; padding:0; margin:28px 0 0; display:flex; flex-direction:column; gap:12px;}
  .split-panel li{
    display:flex; align-items:baseline; gap:10px; font-size:0.94rem;
    padding-bottom:12px; border-bottom:1px solid var(--line-dark);
  }
  .structure li{border-bottom:1px solid var(--line);}
  .split-panel li .n{font-family:'IBM Plex Mono',monospace; font-size:0.78rem; color:var(--steel-soft);}

  /* ---------- services ---------- */
  .services-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line-dark); border:1px solid var(--line-dark);}
  @media (max-width:980px){ .services-grid{grid-template-columns:repeat(2,1fr);} }
  @media (max-width:560px){ .services-grid{grid-template-columns:1fr;} }
  .service-card{background:var(--plaster); padding:36px 28px; transition:background 0.25s;}
  .service-card:hover{background:var(--plaster-2);}
  .service-card .icon{width:40px; height:40px; margin-bottom:20px;}
  .service-card .icon svg{width:100%; height:100%; stroke:var(--blueprint); fill:none; stroke-width:1.4;}
  .service-card h3{font-size:1.08rem;}
  .service-card p{margin-top:10px; font-size:0.9rem; color:var(--steel);}
  .service-card .num{
    font-family:'IBM Plex Mono',monospace; font-size:0.75rem; color:var(--brass); display:block; margin-bottom:14px;
  }

  /* ---------- process ---------- */
  .process-wrap{border-top:1px solid var(--line-dark);}
  .process-item{
    display:grid; grid-template-columns:110px 1fr; gap:32px;
    padding:36px 0; border-bottom:1px solid var(--line-dark);
    align-items:start;
  }
  @media (max-width:640px){ .process-item{grid-template-columns:60px 1fr;} }
  .process-item .pnum{
    font-family:'IBM Plex Mono',monospace; font-size:2rem; color:var(--plaster-2);
    -webkit-text-stroke:1px var(--steel-soft); color:transparent;
    line-height:1;
  }
  .process-item h4{font-size:1.15rem;}
  .process-item p{margin-top:8px; color:var(--steel); max-width:60ch; font-size:0.95rem;}
  .process-item .dur{font-family:'IBM Plex Mono',monospace; font-size:0.75rem; color:var(--brass); margin-top:10px; display:inline-block;}

  /* ---------- projects ---------- */
  .proj-head{max-width:none; display:flex; align-items:flex-end; justify-content:space-between; gap:24px; flex-wrap:wrap;}
  .view-more{
    font-size:0.86rem; font-weight:600; color:var(--brass);
    display:inline-flex; align-items:center; gap:6px; white-space:nowrap; padding-bottom:2px;
    transition:color 0.2s;
  }
  .view-more span{transition:transform 0.25s var(--ease);}
  .view-more:hover{color:var(--brass-bright);}
  .view-more:hover span{transform:translateX(4px);}
  .proj-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:26px;}
  @media (max-width:900px){ .proj-grid{grid-template-columns:1fr 1fr;} }
  @media (max-width:640px){ .proj-grid{grid-template-columns:1fr;} }
  .proj-card{
    background:var(--ink); border-radius:var(--radius); overflow:hidden; color:var(--plaster);
    display:block; cursor:pointer; transition:transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
  }
  .proj-card:hover{transform:translateY(-4px); box-shadow:0 18px 40px rgba(28,27,25,0.22);}
  .proj-visual{
    height:190px; position:relative; overflow:hidden;
    background:
      repeating-linear-gradient(120deg, rgba(232,230,224,0.05) 0 2px, transparent 2px 26px),
      linear-gradient(155deg, var(--blueprint) 0%, var(--ink) 70%);
  }
  .proj-visual svg, .proj-visual img{position:absolute; inset:0; width:100%; height:100%; opacity:0.9; object-fit:cover;}
  .proj-body{padding:22px 24px 26px;}
  .proj-body .tag{font-size:0.7rem; color:var(--brass-bright); letter-spacing:0.1em;}
  .proj-body h3{font-size:1.15rem; margin-top:10px;}
  .proj-body p{margin-top:8px; font-size:0.88rem; color:var(--steel-soft);}

  /* ---------- stats ---------- */
  .stats-band{background:var(--blueprint); color:var(--plaster);}

  /* ---------- insights / blog ---------- */
  .insights-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:26px;}
  @media (max-width:900px){ .insights-grid{grid-template-columns:1fr;} }
  .post-card{
    background:var(--plaster-2); border-radius:var(--radius); overflow:hidden;
    display:flex; flex-direction:column; transition:transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
  }
  .post-card:hover{transform:translateY(-4px); box-shadow:0 18px 40px rgba(28,27,25,0.12);}
  .post-thumb{
    height:170px; position:relative; overflow:hidden;
    background:linear-gradient(150deg, var(--blueprint) 0%, var(--ink) 75%);
  }
  .post-thumb svg{position:absolute; inset:0; width:100%; height:100%;}
  .post-body{padding:24px 24px 26px; display:flex; flex-direction:column; flex:1;}
  .post-meta{
    display:flex; gap:14px; align-items:center;
    font-size:0.7rem; color:var(--steel); letter-spacing:0.08em;
  }
  .post-meta .cat{color:var(--brass); font-weight:500;}
  .post-body h3{font-size:1.08rem; margin-top:12px; line-height:1.3;}
  .post-body p{margin-top:10px; font-size:0.88rem; color:var(--steel); flex:1;}
  .post-read{
    margin-top:16px; font-size:0.84rem; font-weight:600; color:var(--blueprint);
    display:inline-flex; align-items:center; gap:6px;
  }
  .post-card:hover .post-read{color:var(--brass);}
  .insights-cta{
    margin-top:44px; display:flex; align-items:center; justify-content:space-between; gap:20px;
    flex-wrap:wrap; padding:28px 30px; background:var(--ink); color:var(--plaster); border-radius:var(--radius);
  }
  .insights-cta p{color:var(--steel-soft); font-size:0.9rem; max-width:44ch;}

  .post-full{
    margin-top:20px; border-top:1px solid var(--line-dark); padding-top:0;
  }
  .post-full > summary{
    list-style:none; cursor:pointer; padding:22px 0; display:flex; justify-content:space-between;
    align-items:center; gap:20px; font-family:'Space Grotesk',sans-serif; font-weight:600; font-size:1.05rem;
  }
  .post-full > summary::-webkit-details-marker{display:none;}
  .post-full > summary .plus{
    flex-shrink:0; width:30px; height:30px; border-radius:50%; border:1px solid var(--steel-soft);
    display:flex; align-items:center; justify-content:center; font-size:1.1rem; color:var(--brass);
    transition:transform 0.25s var(--ease);
  }
  .post-full[open] > summary .plus{transform:rotate(45deg);}
  .post-full .meta-line{
    font-size:0.72rem; color:var(--steel);
    letter-spacing:0.06em; margin-bottom:18px;
  }
  .post-full .article-body{padding-bottom:36px; max-width:70ch;}
  .post-full .article-body p{margin-bottom:16px; font-size:0.98rem; line-height:1.75; color:var(--ink);}
  .post-full .article-body h4{font-size:1.1rem; margin:28px 0 12px;}
  .post-full .article-body ul, .post-full .article-body ol{margin:0 0 16px; padding-left:22px;}
  .post-full .article-body li{margin-bottom:8px; font-size:0.95rem; line-height:1.65;}
  .post-full .disclaimer{
    margin-top:20px; padding:14px 16px; background:var(--plaster-2); border-left:2px solid var(--brass);
    font-size:0.82rem; color:var(--steel);
  }
  .stats-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:32px; text-align:left;}
  @media (max-width:768px){ .stats-grid{grid-template-columns:1fr 1fr;} }
  .stat h3{font-family:'IBM Plex Mono',monospace; font-size:2.4rem; color:var(--brass-bright); font-weight:500;}
  .stat p{margin-top:8px; font-size:0.86rem; color:rgba(232,230,224,0.75);}

  /* ---------- testimonials ---------- */
  .testi-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:28px;}
  @media (max-width:900px){ .testi-grid{grid-template-columns:1fr;} }
  .testi-card{
    background:var(--plaster-2); padding:32px 28px; border-radius:var(--radius);
    border-left:2px solid var(--brass);
  }
  .testi-card p.quote{font-size:1rem; line-height:1.65;}
  .testi-card .who{margin-top:20px; font-family:'IBM Plex Mono',monospace; font-size:0.78rem; color:var(--steel);}
  .testi-card .who b{color:var(--ink); font-family:'Inter',sans-serif; font-weight:600; display:block; font-size:0.92rem;}

  /* ---------- contact ---------- */
  .contact-section{background:var(--ink); color:var(--plaster);}
  .contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:64px;}
  @media (max-width:900px){ .contact-grid{grid-template-columns:1fr; gap:40px;} }
  .contact-info .item{padding:18px 0; border-bottom:1px solid var(--line); display:flex; gap:14px;}
  .contact-info .item .lbl{width:110px; flex-shrink:0; font-size:0.76rem; color:var(--steel-soft); letter-spacing:0.08em;}
  .contact-info .item .val{font-size:0.98rem;}
  .contact-info .item .val a:hover{color:var(--brass-bright);}

  form{display:flex; flex-direction:column; gap:18px;}
  .field{display:flex; flex-direction:column; gap:8px;}
  .field label{font-size:0.78rem; letter-spacing:0.06em; color:var(--steel-soft);}
  .field input, .field select, .field textarea{
    background:rgba(232,230,224,0.04); border:1px solid var(--line); color:var(--plaster);
    padding:13px 14px; font-family:'Inter',sans-serif; font-size:0.95rem; border-radius:var(--radius);
    transition:border-color 0.2s;
  }
  /* The native option list renders on a light popup (OS-drawn); without this the
     inherited near-white color makes the choices unreadable. Dark text on plaster. */
  .field select option{ color:var(--ink); background:var(--plaster); }
  .field input:focus, .field select:focus, .field textarea:focus{
    outline:none; border-color:var(--brass);
  }
  .field textarea{resize:vertical; min-height:100px;}
  .field .err{font-size:0.78rem; color:#D98686; min-height:1em; display:none;}
  .field.invalid input, .field.invalid select, .field.invalid textarea{border-color:#D98686;}
  .field.invalid .err{display:block;}
  .row2{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
  @media (max-width:520px){ .row2{grid-template-columns:1fr;} }
  .submit-btn{margin-top:6px; align-self:flex-start;}
  .form-msg{
    margin-top:14px; padding:14px 16px; border-radius:var(--radius);
    font-size:0.9rem; line-height:1.6; display:none;
  }
  .form-msg.show{display:block;}
  .form-msg.success{background:rgba(173,114,51,0.14); color:var(--brass-bright); border:1px solid var(--brass);}
  .form-msg a{color:var(--brass-bright); text-decoration:underline; white-space:nowrap;}

  /* ---------- footer ---------- */
  footer{background:var(--ink); color:var(--steel-soft); border-top:1px solid var(--line); padding:48px 0 28px;}
  .foot-top{display:flex; justify-content:space-between; align-items:flex-start; gap:40px; flex-wrap:wrap; padding-bottom:32px; border-bottom:1px solid var(--line);}
  .foot-links{display:flex; gap:48px; flex-wrap:wrap;}
  .foot-col h5{font-size:0.72rem; letter-spacing:0.12em; color:var(--plaster); margin-bottom:14px;}
  .foot-col a{display:block; font-size:0.88rem; padding:5px 0; color:var(--steel-soft);}
  .foot-col a:hover{color:var(--brass-bright);}
  .foot-bottom{display:flex; justify-content:space-between; align-items:center; padding-top:22px; font-size:0.8rem; flex-wrap:wrap; gap:10px;}

  /* back to top */
  #toTop{
    position:fixed; right:24px; bottom:24px; width:44px; height:44px; border-radius:50%;
    background:var(--brass); color:var(--ink); border:none; cursor:pointer;
    display:flex; align-items:center; justify-content:center;
    opacity:0; pointer-events:none; transition:opacity 0.3s, transform 0.3s;
    z-index:90;
  }
  #toTop.show{opacity:1; pointer-events:auto;}
  #toTop:hover{transform:translateY(-3px);}

  /* whatsapp floating button */
  .wa-float{
    position:fixed; left:24px; bottom:24px; width:56px; height:56px; border-radius:50%;
    background:#25D366; display:flex; align-items:center; justify-content:center;
    box-shadow:0 6px 18px rgba(0,0,0,0.28); z-index:90; transition:transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
  }
  .wa-float img{width:32px; height:32px; display:block;}
  .wa-float:hover{transform:translateY(-3px) scale(1.05); box-shadow:0 10px 22px rgba(0,0,0,0.34);}
  @media (max-width:640px){
    .wa-float{left:16px; bottom:16px; width:50px; height:50px;}
    .wa-float img{width:28px; height:28px;}
  }

  .skip-link{
    position:absolute; left:-999px; top:0; background:var(--brass); color:var(--ink);
    padding:10px 16px; z-index:200;
  }
  .skip-link:focus{left:10px; top:10px;}

  /* ---------- before / after showcase ---------- */
  .ba-intro-card{
    background:var(--ink); color:var(--plaster); border-radius:var(--radius);
    overflow:hidden; display:grid; grid-template-columns:1fr 1fr; margin-bottom:28px;
  }
  @media (max-width:760px){ .ba-intro-card{grid-template-columns:1fr;} }
  .ba-intro-card img{width:100%; height:100%; object-fit:cover; min-height:260px;}
  .ba-intro-copy{padding:44px 40px; display:flex; flex-direction:column; justify-content:center;}
  .ba-intro-copy h3{font-size:1.5rem; max-width:16ch;}
  .ba-intro-copy p{margin-top:14px; color:var(--steel-soft); max-width:36ch; font-size:0.95rem;}

  .ba-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:24px;}
  @media (max-width:900px){ .ba-grid{grid-template-columns:1fr 1fr;} }
  @media (max-width:600px){ .ba-grid{grid-template-columns:1fr;} }

  .ba-slider{
    position:relative; aspect-ratio:4/3; overflow:hidden; border-radius:var(--radius);
    background:var(--ink); user-select:none;
  }
  .ba-slider .ba-img{position:absolute; inset:0; width:100%; height:100%; object-fit:cover; pointer-events:none;}
  .ba-slider .ba-after-wrap{position:absolute; inset:0; overflow:hidden; clip-path:inset(0 50% 0 0);}
  .ba-slider .ba-after-wrap img{position:absolute; inset:0; width:100%; height:100%; object-fit:cover;}
  .ba-handle{
    position:absolute; top:0; bottom:0; left:50%; width:0; pointer-events:none;
    transform:translateX(-50%);
  }
  .ba-handle::before{
    content:''; position:absolute; top:0; bottom:0; left:0; width:2px; background:var(--plaster);
    box-shadow:0 0 0 1px rgba(0,0,0,0.25);
  }
  .ba-handle::after{
    content:'⇔'; position:absolute; top:50%; left:0; transform:translate(-50%,-50%);
    width:34px; height:34px; border-radius:50%; background:var(--brass); color:var(--ink);
    display:flex; align-items:center; justify-content:center; font-size:0.85rem;
  }
  .ba-slider input[type="range"]{
    position:absolute; inset:0; width:100%; height:100%; margin:0; opacity:0; cursor:ew-resize;
    -webkit-appearance:none; appearance:none;
  }
  .ba-label{
    position:absolute; top:12px; font-size:0.66rem;
    letter-spacing:0.1em; padding:5px 10px; border-radius:2px;
    background:rgba(28,27,25,0.72); color:var(--plaster); pointer-events:none;
  }
  .ba-label.before{left:12px;}
  .ba-label.after{right:12px; background:rgba(173,114,51,0.85); color:var(--ink);}
  .ba-caption{
    display:flex; justify-content:space-between; align-items:baseline; margin-top:12px;
  }
  .ba-caption .name{font-weight:600; font-size:0.92rem;}
  .ba-caption .meta{font-family:'IBM Plex Mono',monospace; font-size:0.72rem; color:var(--steel);}

  /* ---------- blog / projects listing page ---------- */
  .blog-hero{
    background:var(--ink); color:var(--plaster);
    padding:168px 0 56px; position:relative; overflow:hidden;
  }
  .blog-hero::after{
    content:''; position:absolute; right:-10%; top:-20%; width:50%; height:140%;
    background:radial-gradient(ellipse at center, rgba(201,138,66,0.12), transparent 62%);
    pointer-events:none;
  }
  .blog-hero .wrap{position:relative; z-index:1;}
  .blog-hero h1{font-size:clamp(2.2rem,4.6vw,3.6rem); margin-top:14px; max-width:18ch;}
  .blog-hero p{margin-top:20px; max-width:58ch; color:var(--steel-soft); font-size:1.02rem;}

  .featured-wrap{padding:0;}
  .featured-project{
    display:grid; grid-template-columns:1.1fr 1fr; background:var(--ink); color:var(--plaster);
    overflow:hidden; cursor:pointer; min-height:480px;
    transition:box-shadow 0.3s var(--ease);
  }
  .featured-project:hover{box-shadow:0 24px 50px rgba(28,27,25,0.24);}
  @media (max-width:900px){ .featured-project{grid-template-columns:1fr;} }
  .fp-visual{
    position:relative; min-height:320px; overflow:hidden;
    background:
      repeating-linear-gradient(120deg, rgba(232,230,224,0.05) 0 2px, transparent 2px 26px),
      linear-gradient(155deg, var(--blueprint) 0%, var(--ink) 70%);
  }
  .fp-visual svg, .fp-visual img{position:absolute; inset:0; width:100%; height:100%; opacity:0.9; object-fit:cover;}
  @media (max-width:900px){ .fp-visual{height:340px;} }
  .fp-body{padding:56px clamp(28px,5vw,72px); display:flex; flex-direction:column; justify-content:center;}
  @media (max-width:640px){ .fp-body{padding:36px 24px;} }
  .fp-tag{font-size:0.72rem; color:var(--brass-bright); letter-spacing:0.14em;}
  .fp-body h2{font-size:clamp(1.6rem,3vw,2.3rem); margin-top:14px;}
  .fp-body p.fp-desc{margin-top:14px; color:var(--steel-soft); font-size:0.98rem; max-width:46ch;}
  .fp-meta{display:flex; gap:26px; margin-top:28px; flex-wrap:wrap;}
  .fp-meta .fp-stat label{display:block; font-family:'IBM Plex Mono',monospace; font-size:0.66rem; letter-spacing:0.1em; text-transform:uppercase; color:var(--steel-soft);}
  .fp-meta .fp-stat strong{display:block; margin-top:6px; font-family:'IBM Plex Mono',monospace; color:var(--brass-bright); font-size:1rem; font-weight:500;}
  .fp-body .btn{margin-top:32px; align-self:flex-start;}

  /* Auto-rotating image slider — used wherever a project has more than one photo.
     A single image (or none) renders through the plain img/svg path above and never animates. */
  .visual-slider{position:absolute; inset:0;}
  .visual-slider img.slide{
    position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
    opacity:0; transition:opacity 1.1s var(--ease);
  }
  .visual-slider img.slide.active{opacity:0.9;}
  .visual-dots{position:absolute; left:50%; bottom:20px; transform:translateX(-50%); display:flex; gap:7px; z-index:2;}
  .visual-dots span{width:6px; height:6px; border-radius:50%; background:rgba(232,230,224,0.4); transition:background 0.3s;}
  .visual-dots span.active{background:var(--brass-bright);}

  .blog-filters{display:flex; gap:16px; flex-wrap:wrap; margin:0 0 40px;}
  .blog-filters input, .blog-filters select{
    background:var(--plaster); border:1px solid var(--line-dark); color:var(--ink);
    padding:13px 16px; font-family:'Inter',sans-serif; font-size:0.92rem; border-radius:var(--radius);
    transition:border-color 0.2s;
  }
  .blog-filters input{flex:1; min-width:220px;}
  .blog-filters select{min-width:180px; cursor:pointer;}
  .blog-filters input:focus, .blog-filters select:focus{outline:none; border-color:var(--brass);}

  .proj-body .status-pill{
    display:inline-block; margin-left:8px; padding:2px 9px; border-radius:20px; font-size:0.62rem;
    letter-spacing:0.06em; text-transform:uppercase; font-family:'IBM Plex Mono',monospace; vertical-align:middle;
  }
  .status-pill.completed{background:rgba(63,101,112,0.28); color:var(--blueprint-bright);}
  .status-pill.ongoing{background:rgba(173,114,51,0.22); color:var(--brass-bright);}
  .status-pill.planned{background:rgba(139,143,144,0.24); color:var(--steel-soft);}

  .blog-empty{padding:70px 20px; text-align:center; color:var(--steel); font-size:0.98rem;}

  .pagination{display:flex; justify-content:center; gap:8px; margin-top:52px; flex-wrap:wrap;}
  .pagination button{
    min-width:40px; padding:9px 14px; border:1px solid var(--line-dark); background:var(--plaster);
    color:var(--ink); font-family:'IBM Plex Mono',monospace; font-size:0.85rem; border-radius:var(--radius);
    cursor:pointer; transition:all 0.2s var(--ease);
  }
  .pagination button:hover:not(:disabled):not(.active){border-color:var(--brass); color:var(--brass);}
  .pagination button.active{background:var(--ink); color:var(--plaster); border-color:var(--ink);}
  .pagination button:disabled{opacity:0.4; cursor:not-allowed;}
  .pagination-ellipsis{
    display:inline-flex; align-items:center; min-width:24px; justify-content:center;
    color:var(--steel-soft); font-family:'IBM Plex Mono',monospace; font-size:0.85rem;
  }

  /* ---------- project detail page ---------- */
  .detail-hero{background:var(--ink); color:var(--plaster);}
  .detail-hero-inner{display:grid; grid-template-columns:1.1fr 1fr; min-height:620px;}
  @media (max-width:900px){ .detail-hero-inner{grid-template-columns:1fr;} }
  #projectBody{padding-top:64px;}
  .breadcrumb{
    display:inline-flex; align-items:center; gap:6px; color:var(--brass-bright);
    font-size:0.86rem; font-weight:600; padding-bottom:32px;
  }
  .breadcrumb:hover{color:var(--brass);}
  #projectHead h1{font-size:clamp(1.9rem,4vw,3rem); margin-top:14px; max-width:22ch;}
  .project-meta-row{display:flex; gap:10px; flex-wrap:wrap; margin-top:22px;}
  .badge{
    display:inline-flex; align-items:center; gap:6px; padding:7px 14px; border-radius:20px;
    font-family:'IBM Plex Mono',monospace; font-size:0.7rem; letter-spacing:0.06em; text-transform:uppercase;
  }
  .badge.category{background:rgba(173,114,51,0.16); color:var(--brass-bright); border:1px solid rgba(173,114,51,0.4);}
  .badge.location{background:rgba(232,230,224,0.08); color:var(--steel-soft); border:1px solid var(--line);}
  .badge.status{border:1px solid rgba(63,101,112,0.5); color:var(--blueprint-bright);}
  .badge.status.ongoing{border-color:rgba(173,114,51,0.5); color:var(--brass-bright);}
  .badge.status.planned{border-color:var(--line); color:var(--steel-soft);}

  /* Image fills its column edge-to-edge, including under the fixed header, so nothing
     but the fixed header padding on the text side is "empty" space. */
  .detail-visual{
    position:relative; overflow:hidden;
    background:
      repeating-linear-gradient(120deg, rgba(232,230,224,0.05) 0 2px, transparent 2px 26px),
      linear-gradient(155deg, var(--blueprint) 0%, var(--ink) 70%);
  }
  .detail-visual svg, .detail-visual img{position:absolute; inset:0; width:100%; height:100%; opacity:0.9; object-fit:cover;}
  @media (max-width:900px){ .detail-visual{height:340px;} }
  @media (max-width:640px){ .detail-visual{height:260px;} }

  .detail-text{padding:150px 48px 56px; display:flex; flex-direction:column; justify-content:center;}
  @media (max-width:900px){ .detail-text{padding:40px 32px 48px;} }
  @media (max-width:640px){ .detail-text{padding:32px 24px 40px;} }

  .metrics-display{
    display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:24px;
    margin:44px 0; padding:32px; background:var(--plaster-2); border-radius:var(--radius);
  }
  .metrics-display .metric label{display:block; font-family:'IBM Plex Mono',monospace; font-size:0.68rem; letter-spacing:0.1em; text-transform:uppercase; color:var(--steel);}
  .metrics-display .metric strong{display:block; margin-top:8px; font-size:1.15rem; color:var(--brass); font-family:'Space Grotesk',sans-serif; font-weight:600;}

  .project-description{margin:44px 0; max-width:70ch;}
  .project-description p{margin-bottom:16px; font-size:1rem; line-height:1.8; color:var(--steel);}

  .detail-gallery{margin:56px 0;}
  .detail-gallery h3{font-size:1.4rem; margin-bottom:24px;}
  .gallery-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:16px;}
  .gallery-grid img{width:100%; height:220px; object-fit:cover; border-radius:var(--radius); cursor:pointer; transition:transform 0.3s var(--ease);}
  .gallery-grid img:hover{transform:scale(1.03);}

  .detail-cta{
    margin:56px 0 0; display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap;
    padding:36px 40px; background:var(--ink); color:var(--plaster); border-radius:var(--radius);
  }
  .detail-cta p{color:var(--steel-soft); font-size:0.92rem; margin-top:6px; max-width:44ch;}

  .related-section h3{font-size:1.5rem; margin-top:14px; margin-bottom:28px;}

  .lightbox{
    position:fixed; inset:0; background:rgba(28,27,25,0.92); display:flex; align-items:center; justify-content:center;
    z-index:1000; padding:40px;
  }
  .lightbox-content{position:relative; max-width:min(1000px,90vw); max-height:88vh;}
  .lightbox-content img{max-width:100%; max-height:88vh; border-radius:var(--radius); display:block;}
  .lightbox .close{
    position:absolute; top:-38px; right:0; color:var(--plaster); font-size:2rem; line-height:1; cursor:pointer; font-weight:300;
  }
  .lightbox .close:hover{color:var(--brass-bright);}


  /* ---------- admin panel ---------- */
  /* Internal tool — reuses the same tokens, .wrap rhythm, and .btn base as the
     public pages instead of redeclaring them, and every selector below is scoped
     under .admin-shell/.admin-section so nothing leaks onto index.html/blog.html/detail.html. */

  /* Passphrase gate shown before #adminContent — see the access-gate comment in
     admin.html for what this does and doesn't protect against. */
  .auth-gate{
    position:fixed; inset:0; z-index:200; display:flex; align-items:center; justify-content:center;
    background:var(--ink); padding:24px;
  }
  .auth-gate-box{
    width:100%; max-width:360px; text-align:center;
    background:var(--plaster-2); color:var(--ink); padding:40px 32px;
    border-radius:var(--radius); border:1px solid var(--line-dark);
  }
  .auth-gate-box .auth-gate-title{font-size:1.3rem; font-weight:700;}
  .auth-gate-box p{margin-top:10px; color:var(--steel); font-size:0.9rem;}
  .auth-gate-box input{
    width:100%; margin-top:22px; padding:13px 16px; border-radius:var(--radius);
    border:1px solid var(--line-dark); background:var(--plaster); color:var(--ink); font-size:0.95rem;
  }
  .auth-gate-box input:focus{outline:2px solid var(--brass); outline-offset:1px;}
  .auth-gate-error{color:#B5453B; font-weight:600;}
  .auth-gate-box .btn{width:100%; margin-top:18px; justify-content:center;}

  .admin-shell{
    width:100%;
    padding:40px 40px 80px;
  }
  @media (max-width:640px){ .admin-shell{padding:28px 20px 60px;} }

  /* Sticky toolbar — sits outside .admin-shell so it spans full width and
     stays pinned while the form sections scroll underneath it. */
  .admin-header{
    position:sticky; top:0; z-index:20;
    background:var(--ink); color:var(--plaster);
    padding:24px 40px; border-bottom:1px solid var(--line);
    display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap;
  }
  .admin-header h1{font-size:1.4rem; color:var(--plaster);}
  .admin-header p{margin-top:6px; color:var(--steel-soft); font-size:0.88rem;}
  @media (max-width:640px){ .admin-header{padding:18px 20px;} }

  /* Backup/restore + storage meter, tucked into the header rather than taking
     over the page — durability tooling shouldn't compete with the actual form. */
  .admin-header-data{display:flex; align-items:center; gap:18px; flex-wrap:wrap;}
  .storage-meter{font-family:'IBM Plex Mono',monospace; font-size:0.72rem; color:var(--steel-soft); white-space:nowrap;}
  .storage-meter.storage-warning{color:var(--brass-bright);}
  .data-actions{display:flex; gap:14px;}
  .link-btn{
    background:none; border:none; padding:0; cursor:pointer;
    font-family:'Inter',sans-serif; font-size:0.84rem; font-weight:600; color:var(--brass-bright);
    text-decoration:underline; text-underline-offset:3px; white-space:nowrap;
  }
  .link-btn:hover{color:var(--brass);}

  .backup-explainer{
    font-size:0.84rem; color:var(--steel); max-width:78ch; margin:-4px 0 28px;
  }
  .backup-reminder{
    display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
    background:rgba(173,114,51,0.14); border:1px solid rgba(173,114,51,0.4); color:var(--ink);
    padding:16px 20px; border-radius:var(--radius); margin-bottom:24px;
  }
  .backup-reminder-actions{display:flex; align-items:center; gap:12px;}
  .backup-reminder-dismiss{
    background:none; border:none; cursor:pointer; font-size:1.2rem; line-height:1; color:var(--steel);
    padding:4px;
  }
  .backup-reminder-dismiss:hover{color:var(--ink);}

  .admin-section{
    background:var(--plaster-2); padding:36px; margin-bottom:32px;
    border-radius:var(--radius); border:1px solid var(--line-dark);
  }
  .admin-section h2{
    border-bottom:2px solid var(--brass); padding-bottom:16px; margin-bottom:24px; font-size:1.4rem;
  }

  .admin-section .form-group{margin-bottom:22px;}
  .admin-section label{
    display:block; margin-bottom:8px; font-weight:600; font-size:0.82rem;
    color:var(--steel);
  }
  .admin-section input[type="text"],
  .admin-section input[type="number"],
  .admin-section input[type="url"],
  .admin-section textarea,
  .admin-section select{
    width:100%; padding:13px 14px; border:1px solid var(--line-dark); border-radius:var(--radius);
    font-size:0.92rem; font-family:'Inter',sans-serif; background:var(--plaster);
    color:var(--ink); transition:border-color 0.2s;
  }
  .admin-section input:focus, .admin-section textarea:focus, .admin-section select:focus{
    outline:none; border-color:var(--brass);
  }
  .admin-section textarea{resize:vertical; min-height:120px;}
  .admin-section small{display:block; margin-top:6px; font-size:0.78rem; color:var(--steel-soft);}

  .checkbox-group{display:flex; align-items:center; gap:10px;}
  .admin-section input[type="checkbox"]{width:20px; height:20px; cursor:pointer; accent-color:var(--brass);}

  .admin-section input[type="file"]{
    width:100%; padding:11px 14px; border:1px dashed var(--line-dark); border-radius:var(--radius);
    background:var(--plaster); font-family:'Inter',sans-serif; font-size:0.86rem; color:var(--steel); cursor:pointer;
  }

  .image-preview{
    display:flex; align-items:center; gap:14px; margin-top:14px;
  }
  .image-preview img{
    width:100px; height:75px; object-fit:cover; border-radius:var(--radius); border:1px solid var(--line-dark);
  }

  .gallery-preview-grid{
    display:grid; grid-template-columns:repeat(auto-fill,minmax(110px,1fr)); gap:12px; margin-top:14px;
  }
  .gallery-preview-grid:empty{margin-top:0;}
  .gallery-preview-item{position:relative;}
  .gallery-preview-item img{
    width:100%; height:80px; object-fit:cover; border-radius:var(--radius); border:1px solid var(--line-dark); display:block;
  }
  .gallery-preview-item .remove-thumb{
    position:absolute; top:-8px; right:-8px; width:22px; height:22px; border-radius:50%;
    background:var(--ink); color:var(--plaster); border:1px solid var(--plaster);
    font-size:0.9rem; line-height:1; cursor:pointer; display:flex; align-items:center; justify-content:center;
  }
  .gallery-preview-item .remove-thumb:hover{background:#B5453B;}

  .url-fallback{margin-top:12px;}
  .url-fallback summary{
    cursor:pointer; font-size:0.8rem; color:var(--steel); font-weight:600;
  }
  .url-fallback summary:hover{color:var(--brass);}

  .metrics-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:18px;}
  .two-column{display:grid; grid-template-columns:1fr 1fr; gap:24px;}
  @media (max-width:768px){ .two-column{grid-template-columns:1fr;} }

  .button-group{display:flex; gap:12px; margin-top:32px; flex-wrap:wrap;}

  /* button color/size variants — layer onto the shared .btn base (padding, radius,
     transition already come from .btn / .btn-primary defined earlier in this file) */
  .admin-section .btn-primary, .button-group .btn-primary{flex:1; justify-content:center;}
  .btn-secondary{background:var(--steel); color:var(--plaster);}
  .btn-secondary:hover{background:var(--steel-soft);}
  .btn-danger{background:#B5453B; color:var(--plaster);}
  .btn-danger:hover{background:#9C3A31;}
  .btn-success{background:var(--blueprint); color:var(--plaster);}
  .btn-success:hover{background:var(--blueprint-bright);}
  .btn-small{padding:9px 16px; font-size:0.82rem;}

  .posts-search{
    width:100%; margin-top:4px; padding:13px 16px; border-radius:var(--radius);
    border:1px solid var(--line-dark); background:var(--plaster); color:var(--ink); font-size:0.92rem;
    font-family:'Inter',sans-serif;
  }
  .posts-search:focus{outline:2px solid var(--brass); outline-offset:1px;}

  .posts-list{margin-top:20px;}
  .post-item{
    background:var(--plaster); border-left:3px solid var(--brass); padding:16px 18px;
    margin-bottom:14px; border-radius:var(--radius);
    display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap;
  }
  .post-item-info h4{color:var(--ink); font-size:1rem; margin-bottom:4px;}
  .post-item-info p{color:var(--steel); font-size:0.85rem;}
  .post-item-actions{display:flex; gap:10px;}

  .alert{padding:14px 16px; border-radius:var(--radius); margin-bottom:20px; font-size:0.9rem; display:none;}
  .alert.success{background:rgba(63,101,112,0.14); color:var(--blueprint-bright); border:1px solid rgba(63,101,112,0.4); display:block;}
  .alert.error{background:rgba(181,69,59,0.12); color:#B5453B; border:1px solid rgba(181,69,59,0.4); display:block;}

  .file-input-wrapper{position:relative; overflow:hidden; display:inline-block; cursor:pointer;}
  .file-input-wrapper input[type="file"]{position:absolute; left:-9999px;}

  @media (max-width:768px){
    .post-item{flex-direction:column; align-items:flex-start;}
    .post-item-actions{width:100%;}
  }