:root{
    --bg:#FFFFFF;
    --bg-panel:#F4F6FA;
    --bg-panel-2:#EAEDF4;
    --text:#12172B;
    --text-muted:#565F78;
    --text-faint:#8890A6;
    --accent-red:#C5184B;
    --accent-red-dim:#EFB8C7;
    --accent-blue:#1D98D6;
    --border:rgba(18,23,43,0.10);
    --border-strong:rgba(18,23,43,0.20);
    --font-display:'Space Grotesk', sans-serif;
    --font-body:'Inter', sans-serif;
    --font-mono:'IBM Plex Mono', monospace;
    --maxw:1180px;
    --glow-red:rgba(197,24,75,0.07);
    --glow-blue:rgba(29,152,214,0.08);
    --glow-strong:rgba(29,152,214,0.12);
    --noise-opacity:0.03;
  }

  html[data-theme="dark"]{
    --bg:#0D1120;
    --bg-panel:#151B2E;
    --bg-panel-2:#1D2440;
    --text:#E9EDF8;
    --text-muted:#A3ABC4;
    --text-faint:#6E7895;
    --accent-red:#FF2E63;
    --accent-red-dim:#7C3050;
    --accent-blue:#4FB8F0;
    --border:rgba(233,237,248,0.10);
    --border-strong:rgba(233,237,248,0.22);
    --glow-red:rgba(255,46,99,0.10);
    --glow-blue:rgba(79,184,240,0.10);
    --glow-strong:rgba(79,184,240,0.16);
  }

  *{box-sizing:border-box; margin:0; padding:0;}
  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{
    background:var(--bg);
    color:var(--text);
    font-family:var(--font-body);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }

  a{color:inherit; text-decoration:none;}
  ul{list-style:none;}
  img{max-width:100%; display:block;}

  ::selection{background:var(--accent-red); color:var(--bg);}

  a:focus-visible,
  button:focus-visible{
    outline:2px solid var(--accent-blue);
    outline-offset:3px;
    border-radius:2px;
  }

  .wrap{
    max-width:var(--maxw);
    margin:0 auto;
    padding:0 32px;
  }

  .eyebrow{
    font-family:var(--font-mono);
    font-size:12.5px;
    letter-spacing:0.16em;
    text-transform:uppercase;
    color:var(--accent-red);
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:18px;
  }
  .eyebrow::before{
    content:"";
    width:16px; height:1px;
    background:var(--accent-red);
    display:inline-block;
  }

  /* ---------- Gamma mark ---------- */
  .gamma-icon{
    width:1em; height:1em;
    display:inline-block;
    color:var(--accent-red);
  }

  /* ---------- background texture ---------- */
  .grid-texture{
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    opacity:0.05;
    background-image:
      linear-gradient(var(--text) 1px, transparent 1px),
      linear-gradient(90deg, var(--text) 1px, transparent 1px);
    background-size:64px 64px;
    mask-image:radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 90%);
  }

  /* ---------- ambient background glows ---------- */
  .ambient{
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background:
      radial-gradient(58% 44% at 12% 8%, var(--glow-red), transparent 70%),
      radial-gradient(52% 42% at 90% 90%, var(--glow-blue), transparent 70%),
      radial-gradient(38% 32% at 78% 16%, var(--glow-blue), transparent 70%);
    animation:ambient-drift 32s ease-in-out infinite alternate;
    will-change:transform;
  }
  @keyframes ambient-drift{
    0%{transform:translate3d(0,0,0) scale(1);}
    100%{transform:translate3d(0,-34px,0) scale(1.03);}
  }

  .hero-glow{
    position:absolute;
    inset:0;
    z-index:0;
    pointer-events:none;
    background:radial-gradient(56% 52% at 50% 28%, var(--glow-strong), transparent 72%);
  }
  .hero > .wrap{position:relative; z-index:1;}

  .noise{
    position:fixed;
    inset:0;
    z-index:2;
    pointer-events:none;
    opacity:var(--noise-opacity);
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }

  section.glow-top::before{
    content:"";
    position:absolute;
    inset:0;
    z-index:0;
    pointer-events:none;
    background:radial-gradient(52% 40% at 50% 0%, var(--glow-blue), transparent 72%);
  }
  section.glow-top .wrap{position:relative; z-index:1;}

  /* ---------- header ---------- */
  header{
    position:sticky;
    top:0;
    z-index:50;
    background:rgba(255,255,255,0.88);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--border);
  }
  html[data-theme="dark"] header{
    background:rgba(13,17,32,0.88);
  }
  .nav-inner{
    max-width:var(--maxw);
    margin:0 auto;
    padding:18px 32px;
    display:flex;
    align-items:center;
    justify-content:space-between;
  }
  .logo{
    display:flex;
    align-items:center;
  }
  .logo img{
    height:38px;
    width:auto;
    display:block;
  }

  nav.links{
    display:flex;
    gap:36px;
  }
  nav.links a{
    font-size:14.5px;
    color:var(--text-muted);
    transition:color 0.2s ease;
    position:relative;
  }
  nav.links a:hover{color:var(--text);}

  .nav-right{
    display:flex;
    align-items:center;
    gap:22px;
  }

  .lang-toggle,
  .theme-toggle{
    display:flex;
    border:1px solid var(--border-strong);
    border-radius:4px;
    overflow:hidden;
    font-family:var(--font-mono);
    font-size:12.5px;
  }
  .lang-toggle button,
  .theme-toggle button{
    background:transparent;
    border:none;
    color:var(--text-muted);
    padding:6px 11px;
    cursor:pointer;
    letter-spacing:0.04em;
    transition:background 0.2s ease, color 0.2s ease;
  }
  .lang-toggle button.active,
  .theme-toggle button.active{
    background:var(--accent-red);
    color:var(--bg);
  }
  .lang-toggle button:not(.active):hover,
  .theme-toggle button:not(.active):hover{color:var(--text);}

  .theme-toggle button{display:flex; align-items:center; justify-content:center; padding:6px 9px;}
  .theme-icon{width:13px; height:13px; display:block;}

  .btn{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-family:var(--font-body);
    font-weight:600;
    font-size:14.5px;
    padding:11px 20px;
    border-radius:3px;
    cursor:pointer;
    transition:all 0.2s ease;
    border:1px solid transparent;
    white-space:nowrap;
  }
  .btn-primary{
    background:var(--accent-red);
    color:#FFFFFF;
  }
  .btn-primary:hover{
    background:#A5121F;
    transform:translateY(-1px);
  }
  .btn-ghost{
    border-color:var(--border-strong);
    color:var(--text);
  }
  .btn-ghost:hover{
    border-color:var(--accent-blue);
    color:var(--accent-blue);
  }

  .nav-cta{display:none;}
  @media(min-width:860px){.nav-cta{display:inline-flex;}}

  .mobile-toggle{
    display:none;
    background:none; border:none; color:var(--text);
    cursor:pointer;
    width:34px; height:34px;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:5px;
    padding:0;
  }
  .mobile-toggle span{
    width:20px; height:2px;
    background:var(--text);
    border-radius:1px;
    transition:transform 0.25s ease, opacity 0.25s ease;
  }
  .mobile-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .mobile-toggle.open span:nth-child(2){opacity:0;}
  .mobile-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  @media(max-width:859px){
    .mobile-toggle{display:flex;}
    nav.links{
      display:none;
      position:absolute;
      top:100%;
      left:0; right:0;
      flex-direction:column;
      gap:0;
      background:var(--bg);
      border-bottom:1px solid var(--border);
      box-shadow:0 20px 40px rgba(18,23,43,0.12);
      padding:6px 32px 16px;
    }
    nav.links.open{display:flex;}
    nav.links a{
      padding:14px 0;
      border-bottom:1px solid var(--border);
      font-size:16px;
    }
    nav.links a:last-child{border-bottom:none;}
    nav.links a:hover{color:var(--accent-blue);}
  }

  /* ---------- hero ---------- */
  .hero{
    position:relative;
    padding:120px 0 100px;
    z-index:1;
  }
  .hero-frame{
    position:relative;
    padding:56px 48px;
    border:1px solid var(--border);
  }
  .hero-frame::before,
  .hero-frame::after{
    content:"";
    position:absolute;
    width:26px; height:26px;
    border:2px solid var(--accent-red);
  }
  .hero-frame::before{
    top:-2px; left:-2px;
    border-right:none; border-bottom:none;
  }
  .hero-frame::after{
    bottom:-2px; right:-2px;
    border-left:none; border-top:none;
  }

  .hero h1{
    font-family:var(--font-display);
    font-weight:600;
    font-size:clamp(38px, 6vw, 74px);
    line-height:1.04;
    letter-spacing:-0.015em;
    max-width:900px;
  }
  .hero h1 em{
    font-style:normal;
    color:var(--accent-blue);
  }

  .hero p.lede{
    margin-top:26px;
    font-size:18px;
    color:var(--text-muted);
    max-width:560px;
    line-height:1.65;
  }

  .hero-ctas{
    margin-top:38px;
    display:flex;
    gap:16px;
    flex-wrap:wrap;
  }

  .hero-stats{
    margin-top:64px;
    display:grid;
    grid-template-columns:repeat(3,1fr);
    border-top:1px solid var(--border);
  }
  .hero-stats div{
    padding:22px 0 0;
    border-left:1px solid var(--border);
    padding-left:20px;
  }
  .hero-stats div:first-child{border-left:none; padding-left:0;}
  .hero-stats .stat-value{
    font-family:var(--font-mono);
    font-size:15px;
    color:var(--accent-red);
    margin-bottom:6px;
  }
  .hero-stats .stat-label{
    font-size:14px;
    color:var(--text-muted);
  }
  @media(max-width:640px){
    .hero-stats{grid-template-columns:1fr; row-gap:18px;}
    .hero-stats div{border-left:none; padding-left:0; border-top:1px solid var(--border); padding-top:18px;}
    .hero-stats div:first-child{border-top:none; padding-top:0;}
    .hero-frame{padding:36px 22px;}
  }

  /* ---------- sections generic ---------- */
  section{
    position:relative;
    z-index:1;
    padding:110px 0;
    border-top:1px solid var(--border);
  }
  .section-head{
    max-width:640px;
    margin-bottom:64px;
  }
  .section-head h2{
    font-family:var(--font-display);
    font-weight:600;
    font-size:clamp(28px, 3.6vw, 42px);
    letter-spacing:-0.01em;
  }
  .section-head p{
    margin-top:16px;
    color:var(--text-muted);
    font-size:16.5px;
  }

  /* ---------- solutions ---------- */
  .solutions-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:1px;
    background:var(--border);
    border:1px solid var(--border);
  }
  @media(max-width:900px){
    .solutions-grid{grid-template-columns:1fr;}
  }
  .sol-card{
    background:var(--bg);
    padding:40px 34px;
    position:relative;
    transition:background 0.25s ease;
  }
  .sol-card::before{
    content:"";
    position:absolute;
    top:0; left:0; right:0;
    height:2px;
    background:linear-gradient(90deg, var(--accent-red), var(--accent-blue));
    opacity:0;
    transition:opacity 0.25s ease;
  }
  .sol-card::after{
    content:"";
    position:absolute;
    inset:0;
    pointer-events:none;
    background:radial-gradient(120% 80% at 0% 0%, var(--glow-blue), transparent 60%);
    opacity:0;
    transition:opacity 0.3s ease;
  }
  .sol-card:hover::before,
  .sol-card:hover::after{opacity:1;}
  .sol-card:hover{background:var(--bg-panel);}
  .sol-card .sol-id{
    font-family:var(--font-mono);
    font-size:12.5px;
    color:var(--text-faint);
    letter-spacing:0.1em;
    margin-bottom:26px;
    display:block;
  }
  .sol-card h3{
    font-family:var(--font-display);
    font-size:30px;
    font-weight:600;
    margin-bottom:8px;
  }
  .sol-card .sol-tagline{
    color:var(--accent-blue);
    font-size:14.5px;
    font-weight:500;
    margin-bottom:18px;
  }
  .sol-card .sol-desc{
    color:var(--text-muted);
    font-size:15px;
    margin-bottom:26px;
  }
  .sol-card .sol-actions{
    display:flex;
    align-items:center;
    gap:22px;
    margin-top:26px;
    flex-wrap:wrap;
  }
  .sol-card .sol-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-family:var(--font-mono);
    font-size:12.5px;
    letter-spacing:0.08em;
    text-transform:uppercase;
    color:var(--accent-blue);
    border-bottom:1px solid var(--accent-blue);
    padding-bottom:3px;
    transition:color 0.2s ease, border-color 0.2s ease;
  }
  .sol-card .sol-link:hover{color:var(--accent-red); border-color:var(--accent-red);}
  .sol-card ul{
    display:flex;
    flex-direction:column;
    gap:11px;
  }
  .sol-card li{
    display:flex;
    align-items:flex-start;
    gap:10px;
    font-size:14px;
    color:var(--text);
  }
  .sol-card li .gamma-icon{
    flex-shrink:0;
    margin-top:3px;
    width:11px; height:11px;
  }

  /* ---------- platform ---------- */
  .platform-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:24px;
  }
  @media(max-width:800px){.platform-grid{grid-template-columns:1fr;}}
  .plat-card{
    background:var(--bg-panel);
    border:1px solid var(--border);
    padding:38px;
    position:relative;
  }
  .plat-card.highlight{border-color:var(--accent-red-dim);}
  .plat-card .plat-tag{
    font-family:var(--font-mono);
    font-size:12px;
    letter-spacing:0.1em;
    color:var(--accent-blue);
    text-transform:uppercase;
    margin-bottom:16px;
    display:block;
  }
  .plat-card h3{
    font-family:var(--font-display);
    font-size:23px;
    font-weight:600;
    margin-bottom:14px;
  }
  .plat-card p{
    color:var(--text-muted);
    font-size:15px;
  }

  .ai-note{
    margin-top:24px;
    padding:22px 26px;
    border-left:2px solid var(--accent-red);
    background:var(--bg-panel-2);
    font-size:14.5px;
    color:var(--text-muted);
  }
  .ai-note strong{color:var(--text); font-weight:600;}

  /* ---------- references ---------- */
  .refs-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:14px;
  }
  .ref-card{
    background:#FFFFFF;
    border:1px solid var(--border);
    border-radius:6px;
    height:110px;
    padding:20px 24px;
    display:flex;
    align-items:center;
    justify-content:center;
    position:relative;
    transition:border-color 0.25s ease, box-shadow 0.25s ease;
  }
  .ref-card::before{
    content:"";
    position:absolute;
    top:0; left:6px; right:6px;
    height:2px;
    background:linear-gradient(90deg, var(--accent-red), var(--accent-blue));
    opacity:0;
    transition:opacity 0.25s ease;
  }
  .ref-card:hover::before{opacity:1;}
  .ref-card:hover{
    border-color:var(--border-strong);
    box-shadow:0 10px 28px rgba(18,23,43,0.08);
  }
  .ref-card img{
    max-width:100%;
    max-height:100%;
    object-fit:contain;
    filter:grayscale(0.7);
    opacity:0.72;
    transition:filter 0.25s ease, opacity 0.25s ease;
  }
  .ref-card:hover img{filter:grayscale(0); opacity:1;}
  @media(max-width:900px){.refs-grid{grid-template-columns:repeat(3,1fr);}}
  @media(max-width:640px){.refs-grid{grid-template-columns:repeat(2,1fr);}}

  /* ---------- about ---------- */
  .about-section{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:70px;
    align-items:start;
  }
  @media(max-width:860px){.about-section{grid-template-columns:1fr; gap:40px;}}
  .about-section h2{
    font-family:var(--font-display);
    font-weight:600;
    font-size:clamp(26px,3.4vw,38px);
    letter-spacing:-0.01em;
  }
  .about-section .about-body p{
    color:var(--text-muted);
    font-size:16.5px;
    margin-bottom:18px;
  }

  /* ---------- contact ---------- */
  .contact-grid{
    display:grid;
    grid-template-columns:1fr 1.25fr;
    gap:60px;
    align-items:start;
  }
  @media(max-width:860px){.contact-grid{grid-template-columns:1fr; gap:40px;}}
  .contact-grid h2{
    font-family:var(--font-display);
    font-weight:600;
    font-size:clamp(28px,3.6vw,42px);
    letter-spacing:-0.01em;
    margin-bottom:16px;
  }
  .contact-grid > div:first-child p{
    color:var(--text-muted);
    font-size:16.5px;
    max-width:440px;
  }
  #contact .contact-list{margin-top:34px;}
  .contact-list{
    display:flex;
    flex-direction:column;
    gap:0;
    border-top:1px solid var(--border);
  }
  .contact-list li{
    display:flex;
    flex-direction:column;
    gap:4px;
    padding:20px 0;
    border-bottom:1px solid var(--border);
  }
  .contact-list .label{
    font-family:var(--font-mono);
    font-size:12px;
    letter-spacing:0.1em;
    text-transform:uppercase;
    color:var(--text-faint);
  }
  .contact-list .value{
    font-size:17px;
  }
  .contact-list a.value:hover{color:var(--accent-blue);}

  /* ---------- projects ---------- */
  .projects-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:24px;
  }
  @media(max-width:900px){.projects-grid{grid-template-columns:1fr;}}
  .proj-card{
    background:var(--bg-panel);
    border:1px solid var(--border);
    padding:44px 40px;
    display:flex;
    flex-direction:column;
    position:relative;
    transition:border-color 0.25s ease, box-shadow 0.25s ease;
  }
  .proj-card::before{
    content:"";
    position:absolute;
    top:0; left:0; right:0;
    height:2px;
    background:linear-gradient(90deg, var(--accent-red), var(--accent-blue));
    opacity:0;
    transition:opacity 0.25s ease;
  }
  .proj-card:hover::before{opacity:1;}
  .proj-card:hover{border-color:var(--border-strong);}
  .proj-card .proj-id{
    font-family:var(--font-mono);
    font-size:12.5px;
    color:var(--text-faint);
    letter-spacing:0.1em;
    margin-bottom:22px;
    display:block;
  }
  .proj-card h3{
    font-family:var(--font-display);
    font-size:30px;
    font-weight:600;
    margin-bottom:6px;
  }
  .proj-card .proj-tagline{
    color:var(--accent-blue);
    font-size:14.5px;
    font-weight:500;
    margin-bottom:16px;
  }
  .proj-card .proj-desc{
    color:var(--text-muted);
    font-size:15px;
    margin-bottom:22px;
  }
  .proj-card ul{
    display:flex;
    flex-direction:column;
    gap:11px;
    margin-bottom:6px;
  }
  .proj-card li{
    display:flex;
    align-items:flex-start;
    gap:10px;
    font-size:14px;
    color:var(--text);
  }
  .proj-card li .gamma-icon{
    flex-shrink:0;
    margin-top:3px;
    width:11px; height:11px;
  }
  .proj-actions{
    display:flex;
    align-items:center;
    gap:22px;
    margin-top:auto;
    padding-top:26px;
    flex-wrap:wrap;
  }
  .proj-card .proj-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-family:var(--font-mono);
    font-size:12.5px;
    letter-spacing:0.08em;
    text-transform:uppercase;
    color:var(--accent-blue);
    border-bottom:1px solid var(--accent-blue);
    padding-bottom:3px;
    transition:color 0.2s ease, border-color 0.2s ease;
  }
  .proj-card .proj-link:hover{color:var(--accent-red); border-color:var(--accent-red);}

  /* ---------- footer ---------- */
  footer{
    border-top:1px solid var(--border);
    padding:44px 0;
    position:relative;
    z-index:1;
  }
  .footer-inner{
    display:flex;
    justify-content:space-between;
    align-items:center;
    flex-wrap:wrap;
    gap:16px;
  }
  .footer-logo{
    display:flex;
    align-items:center;
    gap:8px;
    font-family:var(--font-display);
    font-weight:600;
    font-size:15px;
  }
  .footer-logo .gamma-icon{width:15px; height:15px;}
  footer .foot-links{
    display:flex;
    gap:26px;
    font-size:13.5px;
    color:var(--text-muted);
  }
  footer .foot-links a:hover{color:var(--text);}
  footer .copyright{
    font-size:13px;
    color:var(--text-faint);
    font-family:var(--font-mono);
  }

  [data-i18n] .translated{display:inline;}


  /* ===== shared detail page primitives (ekr.html / medet.html) ===== */
  .proj-hero{position:relative; padding:104px 0 96px; z-index:1; border-top:none;}
  .proj-hero .wrap{position:relative; z-index:1;}
  .proj-hero h1{font-family:var(--font-display); font-weight:600; font-size:clamp(40px,5.6vw,66px); line-height:1.05; letter-spacing:-0.015em; max-width:900px;}
  .proj-hero .proj-tagline{margin-top:16px; font-size:17px; color:var(--accent-blue); font-weight:500;}
  .proj-hero .proj-lede{margin-top:26px; font-size:17.5px; color:var(--text-muted); max-width:720px; line-height:1.7;}
  .proj-ctas{margin-top:36px; display:flex; gap:14px; flex-wrap:wrap; align-items:center;}
  .proj-meta{margin-top:60px; display:grid; grid-template-columns:repeat(3,1fr); border-top:1px solid var(--border);}
  .proj-meta>div{padding:20px 0 0; border-left:1px solid var(--border); padding-left:20px;}
  .proj-meta>div:first-child{border-left:none; padding-left:0;}
  .meta-key{font-family:var(--font-mono); font-size:11px; letter-spacing:0.12em; text-transform:uppercase; color:var(--text-faint); margin-bottom:6px;}
  .meta-val{font-size:14.5px; color:var(--text);}
  .meta-val a:hover{color:var(--accent-blue);}
  @media(max-width:640px){
    .proj-meta{grid-template-columns:1fr; row-gap:18px;}
    .proj-meta>div{border-left:none; padding-left:0; border-top:1px solid var(--border); padding-top:18px;}
    .proj-meta>div:first-child{border-top:none; padding-top:0;}
  }

  .sec-head{max-width:760px; margin-bottom:54px;}
  .sec-head .eyebrow{margin-bottom:16px;}
  .sec-head h2{font-family:var(--font-display); font-weight:600; font-size:clamp(26px,3.4vw,40px); letter-spacing:-0.01em; margin-bottom:14px;}
  .sec-head p{color:var(--text-muted); font-size:16.5px; line-height:1.7;}

  .prose{max-width:820px;}
  .prose p{color:var(--text-muted); font-size:16.5px; line-height:1.78; margin-bottom:20px;}
  .prose p strong{color:var(--text); font-weight:600;}

  .obj-list{display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--border); border:1px solid var(--border); margin-top:8px;}
  @media(max-width:760px){.obj-list{grid-template-columns:1fr;}}
  .obj{background:var(--bg-panel); padding:24px 28px; display:flex; gap:18px; align-items:flex-start;}
  .obj .num{font-family:var(--font-mono); font-size:13px; color:var(--accent-red); padding-top:2px; flex-shrink:0;}
  .obj p{color:var(--text); font-size:15px; line-height:1.6;}

  .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--border); border:1px solid var(--border); margin-top:8px;}
  @media(max-width:820px){.grid-3{grid-template-columns:1fr;}}
  .grid-3 .cell{background:var(--bg); padding:30px 28px; min-height:100%;}
  .grid-3 .cell .case-tag{font-family:var(--font-mono); font-size:11px; letter-spacing:0.12em; text-transform:uppercase; color:var(--accent-blue); margin-bottom:10px; display:block;}
  .grid-3 .cell p{color:var(--text-muted); font-size:15px; line-height:1.6;}

  .grid-2{display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--border); border:1px solid var(--border); margin-top:8px;}
  @media(max-width:820px){.grid-2{grid-template-columns:1fr;}}
  .step{background:var(--bg); padding:34px 30px;}
  .step .step-n{font-family:var(--font-mono); font-size:12px; color:var(--text-faint); letter-spacing:0.1em; margin-bottom:14px; display:block;}
  .step h3{font-family:var(--font-display); font-size:20px; font-weight:600; margin-bottom:10px;}
  .step p{color:var(--text-muted); font-size:15px; line-height:1.65;}

  .term-block{border:1px solid var(--border); background:var(--bg-panel); padding:26px 28px; overflow-x:auto; margin-top:8px; max-width:900px;}
  .term-block .term-cap{font-family:var(--font-mono); font-size:11px; letter-spacing:0.12em; text-transform:uppercase; color:var(--text-faint); margin-bottom:16px;}
  .term-block pre{font-family:var(--font-mono); font-size:13.5px; line-height:1.85; color:var(--text); white-space:pre;}

  .chip-row{display:flex; flex-wrap:wrap; gap:10px; margin-top:8px;}
  .chip{border:1px solid var(--border-strong); font-family:var(--font-mono); font-size:12.5px; letter-spacing:0.03em; padding:9px 15px; color:var(--text); border-radius:2px; background:var(--bg);}
  .chip .chip-k{color:var(--text-faint);}

  .check-list{display:flex; flex-direction:column; gap:12px; margin-top:22px; max-width:820px;}
  .check-list li{display:flex; gap:12px; align-items:flex-start; color:var(--text-muted); font-size:15.5px; line-height:1.6;}
  .check-list li .gamma-icon{flex-shrink:0; width:12px; height:12px; margin-top:6px; color:var(--accent-red);}
  .check-list li strong{color:var(--text); font-weight:600;}

  .callout{border-left:2px solid var(--accent-red); background:var(--bg-panel-2); padding:22px 26px; margin-top:34px; font-size:14.5px; color:var(--text-muted); max-width:820px;}
  .callout strong{color:var(--text); font-weight:600;}