:root{
    --bg:#0b0d0e;
    --bg-alt:#101314;
    --surface:#161a1b;
    --surface-2:#1c2022;
    --line:#2a2f31;
    --line-soft:#202425;
    --text:#ece8e0;
    --text-dim:#9aa19f;
    --text-faint:#5f6867;
    --red:#b3413a;
    --red-bright:#d9695d;
    --blue:#5f98a6;
    --red-10:rgba(179,65,58,0.10);
    --red-25:rgba(179,65,58,0.25);
    --blue-15:rgba(95,152,166,0.15);
  }

  *{margin:0;padding:0;box-sizing:border-box;}

  html{scroll-behavior:smooth;}

  body{
    background:var(--bg);
    color:var(--text);
    font-family:'Inter',sans-serif;
    line-height:1.6;
    overflow-x:hidden;
  }

  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *{animation-duration:0.01ms !important; transition-duration:0.01ms !important;}
  }

  h1,h2,h3,.display{
    font-family:'Space Grotesk',sans-serif;
    font-weight:600;
    letter-spacing:-0.01em;
  }

  .mono{
    font-family:'JetBrains Mono',monospace;
    letter-spacing:0.02em;
  }

  a{color:inherit; text-decoration:none;}

  a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
    outline:2px solid var(--red);
    outline-offset:3px;
  }

  .wrap{
    max-width:1180px;
    margin:0 auto;
    padding:0 32px;
  }

  /* ---------- background grid ---------- */
  .blueprint-bg{
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background-image:
      linear-gradient(var(--line-soft) 1px, transparent 1px),
      linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
    background-size:56px 56px;
    opacity:0.35;
    mask-image:radial-gradient(ellipse 90% 60% at 50% 0%, black 40%, transparent 85%);
  }

  /* ---------- header ---------- */
  header{
    position:fixed;
    top:0; left:0; right:0;
    z-index:100;
    padding:22px 0;
    background:linear-gradient(to bottom, rgba(11,13,14,0.92), rgba(11,13,14,0));
    backdrop-filter:blur(2px);
    transition:background 0.3s ease, border-color 0.3s ease, padding 0.3s ease;
    border-bottom:1px solid transparent;
  }
  header.scrolled{
    background:rgba(11,13,14,0.88);
    border-bottom:1px solid var(--line);
    padding:16px 0;
  }
  header .wrap{
    display:flex;
    align-items:center;
    justify-content:space-between;
  }
  .logo{
    display:flex;
    flex-direction:column;
    gap:2px;
  }
  .logo .mark{
    font-family:'Space Grotesk',sans-serif;
    font-weight:700;
    font-size:1.15rem;
    letter-spacing:0.02em;
    display:flex;
    align-items:center;
    gap:9px;
  }
  .logo .mark .dot{
    width:8px;height:8px;
    background:var(--red);
    display:inline-block;
    transform:rotate(45deg);
    flex-shrink:0;
  }
  .logo .sub{
    font-family:'JetBrains Mono',monospace;
    font-size:0.68rem;
    color:var(--text-faint);
    letter-spacing:0.06em;
    padding-left:17px;
  }
  nav{
    display:flex;
    align-items:center;
    gap:34px;
  }
  nav a{
    font-size:0.88rem;
    color:var(--text-dim);
    transition:color 0.2s ease;
    position:relative;
  }
  nav a:not(.cta-nav):hover{color:var(--text);}
  nav a:not(.cta-nav)::after{
    content:'';
    position:absolute;
    bottom:-4px; left:0;
    width:0; height:1px;
    background:var(--red);
    transition:width 0.25s ease;
  }
  nav a:not(.cta-nav):hover::after{width:100%;}
  .cta-nav{
    border:1px solid var(--red-25);
    color:var(--red-bright);
    padding:8px 16px;
    font-family:'JetBrains Mono',monospace;
    font-size:0.75rem;
    transition:all 0.2s ease;
  }
  .cta-nav:hover{background:var(--red-10); border-color:var(--red);}
  .nav-toggle{display:none;}

  /* ---------- hero ---------- */
  .hero{
    position:relative;
    min-height:100vh;
    display:flex;
    align-items:center;
    padding-top:90px;
    z-index:1;
  }
  .hero .wrap{
    display:grid;
    grid-template-columns:1.05fr 0.9fr;
    gap:40px;
    align-items:center;
  }
  .eyebrow{
    font-family:'JetBrains Mono',monospace;
    font-size:0.75rem;
    color:var(--red);
    letter-spacing:0.12em;
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:22px;
  }
  .eyebrow::before{
    content:'';
    width:22px; height:1px;
    background:var(--red);
  }
  .hero h1{
    font-size:clamp(2.4rem, 5vw, 4.1rem);
    line-height:1.04;
    margin-bottom:22px;
  }
  .hero h1 .accent{color:var(--red);}
  .hero p{
    color:var(--text-dim);
    font-size:1.05rem;
    max-width:480px;
    margin-bottom:34px;
  }
  .btn-row{display:flex; gap:14px; flex-wrap:wrap;}
  .btn{
    font-family:'JetBrains Mono',monospace;
    font-size:0.8rem;
    letter-spacing:0.03em;
    padding:14px 24px;
    display:inline-flex;
    align-items:center;
    gap:10px;
    transition:all 0.2s ease;
    border:1px solid transparent;
  }
  .btn-primary{
    background:var(--red);
    color:#0b0d0e;
    font-weight:500;
  }
  .btn-primary:hover{background:var(--red-bright); transform:translateY(-1px);}
  .btn-ghost{
    border-color:var(--line);
    color:var(--text);
  }
  .btn-ghost:hover{border-color:var(--text-dim);}

  /* blueprint schematic svg */
  .schematic{
    position:relative;
    border:1px solid var(--line);
    background:var(--bg-alt);
    aspect-ratio:1/1;
  }
  .schematic::before{
    content:'FIG. 01 — INTERIOR LAYOUT';
    position:absolute;
    top:12px; left:14px;
    font-family:'JetBrains Mono',monospace;
    font-size:0.62rem;
    color:var(--text-faint);
    letter-spacing:0.08em;
    z-index:2;
  }
  .schematic::after{
    content:'SCALE 1:50';
    position:absolute;
    bottom:12px; right:14px;
    font-family:'JetBrains Mono',monospace;
    font-size:0.62rem;
    color:var(--text-faint);
    letter-spacing:0.08em;
    z-index:2;
  }
  .schematic svg{width:100%; height:100%; display:block;}
  .schematic .draw{
    stroke-dasharray:1400;
    stroke-dashoffset:1400;
    animation:draw 2.6s ease forwards 0.4s;
  }
  @keyframes draw{to{stroke-dashoffset:0;}}
  .corner{position:absolute; width:14px; height:14px; border-color:var(--red); z-index:2;}
  .corner.tl{top:-1px; left:-1px; border-top:2px solid; border-left:2px solid;}
  .corner.tr{top:-1px; right:-1px; border-top:2px solid; border-right:2px solid;}
  .corner.bl{bottom:-1px; left:-1px; border-bottom:2px solid; border-left:2px solid;}
  .corner.br{bottom:-1px; right:-1px; border-bottom:2px solid; border-right:2px solid;}

  /* ---------- section shared ---------- */
  section{
    position:relative;
    z-index:1;
    padding:120px 0;
    border-top:1px solid var(--line);
  }
  .section-head{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    gap:24px;
    margin-bottom:56px;
    flex-wrap:wrap;
  }
  .section-head h2{
    font-size:clamp(1.7rem, 3vw, 2.3rem);
  }
  .section-note{
    color:var(--text-faint);
    font-size:0.85rem;
    max-width:280px;
    text-align:right;
  }

  .reveal{
    opacity:0;
    transform:translateY(24px);
    transition:opacity 0.7s ease, transform 0.7s ease;
  }
  .reveal.in{opacity:1; transform:translateY(0);}

  /* ---------- devlog ---------- */
  .devlog{display:flex; flex-direction:column;}
  .devlog-entry{
    display:grid;
    grid-template-columns:130px 1fr;
    gap:28px;
    padding:28px 0;
    border-top:1px solid var(--line);
  }
  .devlog-entry:last-child{border-bottom:1px solid var(--line);}
  .devlog-meta{
    font-family:'JetBrains Mono',monospace;
    font-size:0.75rem;
    color:var(--red);
  }
  .devlog-meta .date{
    display:block;
    color:var(--text-faint);
    margin-top:6px;
  }
  .devlog-entry h3{
    font-size:1.15rem;
    font-weight:500;
    margin-bottom:8px;
  }
  .devlog-entry p{
    color:var(--text-dim);
    font-size:0.94rem;
    max-width:600px;
  }
  .tag{
    display:inline-block;
    font-family:'JetBrains Mono',monospace;
    font-size:0.65rem;
    padding:3px 8px;
    border:1px solid var(--blue);
    color:var(--blue);
    letter-spacing:0.05em;
    margin-top:12px;
  }

  /* ---------- gallery ---------- */
  .gallery-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:22px;
  }
  .g-card{
    border:1px solid var(--line);
    background:var(--surface);
    position:relative;
    transition:border-color 0.25s ease, transform 0.25s ease;
  }
  .g-card:hover{border-color:var(--red-25); transform:translateY(-3px);}
  .g-visual{
    aspect-ratio:4/3;
    position:relative;
    overflow:hidden;
    border-bottom:1px solid var(--line);
    background:
      repeating-linear-gradient(135deg, var(--surface-2) 0px, var(--surface-2) 2px, var(--bg-alt) 2px, var(--bg-alt) 14px);
  }
  .g-visual .corner{width:11px; height:11px;}
  .g-visual .g-type{
    position:absolute;
    top:10px; left:10px;
    font-family:'JetBrains Mono',monospace;
    font-size:0.62rem;
    color:var(--red-bright);
    background:rgba(11,13,14,0.75);
    padding:3px 7px;
    letter-spacing:0.06em;
    z-index:2;
  }
  .g-info{padding:18px 20px 20px;}
  .g-info h3{
    font-size:1rem;
    font-weight:500;
    margin-bottom:6px;
  }
  .g-info p{
    font-size:0.84rem;
    color:var(--text-faint);
  }
  .g-price{
    display:block;
    margin-top:10px;
    font-family:'JetBrains Mono',monospace;
    font-size:0.82rem;
    color:var(--red-bright);
  }
  .price-disclaimer{
    font-size:0.8rem;
    color:var(--text-faint);
    margin-bottom:28px;
    max-width:640px;
  }
  .price-disclaimer a{
    color:var(--text-dim);
    text-decoration:underline;
    text-underline-offset:3px;
  }
  .price-disclaimer a:hover{color:var(--red-bright);}

  /* ---------- portfolio ---------- */
  .portfolio-grid{
    display:grid;
    grid-template-columns:repeat(2, 1fr);
    gap:28px;
  }
  .p-card{
    border:1px solid var(--line);
    background:var(--surface);
    transition:border-color 0.25s ease, transform 0.25s ease;
  }
  .p-card:hover{border-color:var(--red-25); transform:translateY(-3px);}
  .p-image{
    aspect-ratio:16/10;
    position:relative;
    overflow:hidden;
    border-bottom:1px solid var(--line);
    background:
      repeating-linear-gradient(135deg, var(--surface-2) 0px, var(--surface-2) 2px, var(--bg-alt) 2px, var(--bg-alt) 14px);
  }
  .p-image img{
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    object-fit:cover;
    display:block;
  }
  .p-image .g-type{
    position:absolute;
    top:12px; left:12px;
    font-family:'JetBrains Mono',monospace;
    font-size:0.65rem;
    color:var(--red-bright);
    background:rgba(11,13,14,0.75);
    padding:4px 8px;
    letter-spacing:0.06em;
    z-index:2;
  }
  .p-image .g-price{
    position:absolute;
    bottom:12px; right:12px;
    font-family:'JetBrains Mono',monospace;
    font-size:0.72rem;
    color:var(--text);
    background:rgba(11,13,14,0.75);
    padding:4px 8px;
    z-index:2;
  }
  .p-body{padding:22px 24px 26px;}
  .p-body h3{
    font-size:1.15rem;
    font-weight:500;
    margin-bottom:10px;
  }
  .p-body p{
    font-size:0.9rem;
    color:var(--text-dim);
  }
  @media (max-width:920px){
    .portfolio-grid{grid-template-columns:1fr;}
  }

  /* ---------- about ---------- */
  .about{
    display:grid;
    grid-template-columns:0.9fr 1.1fr;
    gap:60px;
    align-items:start;
  }
  .about .big-quote{
    font-family:'Space Grotesk',sans-serif;
    font-size:clamp(1.4rem, 2.6vw, 1.9rem);
    line-height:1.35;
    color:var(--text);
  }
  .about .big-quote .accent{color:var(--red);}
  .about-details p{
    color:var(--text-dim);
    margin-bottom:18px;
    font-size:0.96rem;
  }
  .stat-row{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px;
    margin-top:34px;
    padding-top:28px;
    border-top:1px solid var(--line);
  }
  .stat-row .num{
    font-family:'Space Grotesk',sans-serif;
    font-size:1.7rem;
    color:var(--red);
  }
  .stat-row .label{
    font-family:'JetBrains Mono',monospace;
    font-size:0.68rem;
    color:var(--text-faint);
    letter-spacing:0.04em;
    margin-top:4px;
  }

  /* ---------- contact ---------- */
  .contact-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:60px;
  }
  .contact-info h3{
    font-size:1rem;
    font-weight:500;
    margin-bottom:14px;
    color:var(--text-dim);
  }
  .contact-list{list-style:none;}
  .contact-list li{
    padding:14px 0;
    border-top:1px solid var(--line);
    display:flex;
    justify-content:space-between;
    align-items:center;
  }
  .contact-list li:last-child{border-bottom:1px solid var(--line);}
  .contact-list .k{
    font-family:'JetBrains Mono',monospace;
    font-size:0.72rem;
    color:var(--text-faint);
    letter-spacing:0.05em;
  }
  .contact-list .v{font-size:0.94rem;}
  .contact-list a.v:hover{color:var(--red-bright);}

  form{display:flex; flex-direction:column; gap:16px;}
  .field{display:flex; flex-direction:column; gap:8px;}
  .field label{
    font-family:'JetBrains Mono',monospace;
    font-size:0.68rem;
    color:var(--text-faint);
    letter-spacing:0.05em;
  }
  .field input, .field textarea{
    background:var(--surface);
    border:1px solid var(--line);
    color:var(--text);
    padding:12px 14px;
    font-family:'Inter',sans-serif;
    font-size:0.92rem;
    resize:vertical;
  }
  .field input:focus, .field textarea:focus{
    border-color:var(--red-25);
    outline:none;
  }
  .form-note{
    font-size:0.78rem;
    color:var(--text-faint);
    margin-top:2px;
  }

  /* ---------- footer ---------- */
  footer{
    border-top:1px solid var(--line);
    padding:40px 0;
    position:relative;
    z-index:1;
  }
  footer .wrap{
    display:flex;
    justify-content:space-between;
    align-items:center;
    flex-wrap:wrap;
    gap:16px;
  }
  footer .foot-left{
    font-family:'JetBrains Mono',monospace;
    font-size:0.74rem;
    color:var(--text-faint);
  }
  footer nav a{font-size:0.82rem;}

  /* ---------- responsive ---------- */
  @media (max-width:920px){
    .hero .wrap{grid-template-columns:1fr;}
    .schematic{max-width:420px; margin:0 auto;}
    .about{grid-template-columns:1fr;}
    .contact-grid{grid-template-columns:1fr;}
    .gallery-grid{grid-template-columns:repeat(2,1fr);}
    nav{
      position:fixed;
      top:0; right:0;
      height:100vh;
      width:260px;
      background:var(--bg-alt);
      border-left:1px solid var(--line);
      flex-direction:column;
      justify-content:center;
      align-items:flex-start;
      padding:0 36px;
      gap:26px;
      transform:translateX(100%);
      transition:transform 0.3s ease;
      z-index:99;
    }
    nav.open{transform:translateX(0);}
    .nav-toggle{
      display:flex;
      flex-direction:column;
      gap:5px;
      background:none;
      border:none;
      cursor:pointer;
      z-index:101;
      padding:6px;
    }
    .nav-toggle span{width:22px; height:1.5px; background:var(--text);}
  }
  @media (max-width:640px){
    .wrap{padding:0 20px;}
    section{padding:80px 0;}
    .gallery-grid{grid-template-columns:1fr;}
    .devlog-entry{grid-template-columns:1fr; gap:8px;}
    .section-note{text-align:left; max-width:100%;}
  }