:root{--ink-0:#070503;--ink-1:#0C0906;--ink-2:#131009;--ink-3:#1C1710;--ink-4:#251E15;--red:#C8401A;--red-hi:#E05530;--cream:#F0EBE3;--fog:#6B6058;--fog-hi:#9A8E82;--line:rgba(255,255,255,0.055);--line-red:rgba(200,64,26,0.25);}
    *,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
    html{scroll-behavior:smooth;}
    body{background:var(--ink-1);color:var(--cream);font-family:'DM Sans',sans-serif;font-weight:300;line-height:1.7;overflow-x:hidden;}
    nav{position:fixed;top:0;left:0;right:0;z-index:500;display:flex;align-items:center;justify-content:space-between;padding:2rem 3.5rem;transition:background .5s,padding .4s;}
    nav.scrolled{background:rgba(7,5,3,.95);backdrop-filter:blur(20px);border-bottom:1px solid var(--line);padding:1.35rem 3.5rem;}
    .logo{font-family:'DM Sans',sans-serif;font-weight:700;font-size:1rem;letter-spacing:.18em;text-transform:uppercase;color:var(--cream);text-decoration:none;}
    .logo span{color:var(--red);}
    .nav-links{display:flex;gap:2.75rem;list-style:none;}
    .nav-links a{font-size:.65rem;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--fog-hi);text-decoration:none;transition:color .2s;position:relative;}
    .nav-links a::after{content:'';position:absolute;bottom:-3px;left:0;width:0;height:1px;background:var(--red);transition:width .3s;}
    .nav-links a:hover,.nav-links a.active{color:var(--cream);}
    .nav-links a:hover::after,.nav-links a.active::after{width:100%;}
    .nav-cta{font-size:.65rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-0);background:var(--cream);padding:.65rem 1.5rem;text-decoration:none;transition:background .2s,color .2s;}
    .nav-cta:hover{background:var(--red);color:var(--cream);}

    /* CONTACT HERO, full viewport split */
    .contact-hero{min-height:100vh;display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line);}
    .contact-left{display:flex;flex-direction:column;justify-content:flex-end;padding:14rem 5rem 6rem 3.5rem;border-right:1px solid var(--line);position:relative;overflow:hidden;}
    .contact-left::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 60% at 30% 70%,rgba(200,64,26,.06) 0%,transparent 65%);pointer-events:none;}
    .page-eyebrow{font-size:.82rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--red);margin-bottom:1.75rem;display:flex;align-items:center;gap:.75rem;position:relative;}
    .page-eyebrow::before{content:'';width:2rem;height:1px;background:var(--red);}
    .contact-left h1{font-family:'Cormorant',serif;font-weight:300;font-size:clamp(2.25rem,3.5vw,4.5rem);line-height:1;letter-spacing:-.02em;position:relative;}
    .contact-left h1 em{font-style:italic;color:var(--red);}
    .contact-left p{font-size:1rem;color:var(--fog-hi);max-width:44ch;margin-top:2.5rem;line-height:1.85;position:relative;}

    /* DIRECT LINKS */
    .contact-direct{margin-top:3.5rem;display:flex;flex-direction:column;gap:0;position:relative;}
    .contact-link-row{display:flex;align-items:center;justify-content:space-between;padding:1.5rem 0;border-top:1px solid var(--line);transition:padding .2s;}
    .contact-link-row:last-child{border-bottom:1px solid var(--line);}
    .contact-link-row:hover{padding-left:1rem;}
    .contact-link-row:hover .clink-arrow{transform:translateX(5px);color:var(--red);}
    .clink-label{font-size:.72rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--fog-hi);}
    .clink-value{font-family:'Cormorant',serif;font-size:1.35rem;font-weight:300;color:var(--cream);text-decoration:none;display:block;margin-top:.2rem;transition:color .2s;}
    .clink-value:hover{color:var(--red);}
    .clink-arrow{font-size:.9rem;color:var(--fog);transition:transform .25s,color .2s;}

    /* FORM SIDE */
    .contact-right{display:flex;flex-direction:column;justify-content:center;padding:10rem 3.5rem 6rem 5rem;}
    .contact-right h2{font-family:'Cormorant',serif;font-size:clamp(1.75rem,2.5vw,2.75rem);font-weight:300;line-height:1.2;margin-bottom:.75rem;}
    .contact-right h2 em{font-style:italic;color:var(--red);}
    .contact-right .form-sub{font-size:.95rem;color:var(--fog-hi);margin-bottom:3rem;max-width:40ch;line-height:1.75;}

    /* FORM */
    .contact-form{display:flex;flex-direction:column;gap:1.75rem;}
    .form-group{display:flex;flex-direction:column;gap:.6rem;}
    .form-group label{font-size:.6rem;font-weight:600;letter-spacing:.25em;text-transform:uppercase;color:var(--fog);}
    .form-group input,
    .form-group textarea,
    .form-group select{background:var(--ink-3);border:1px solid var(--line);border-radius:0;color:var(--cream);font-family:'DM Sans',sans-serif;font-size:.85rem;font-weight:400;padding:1rem 1.25rem;outline:none;transition:border-color .2s,background .2s;width:100%;-webkit-appearance:none;appearance:none;}
    .form-group input::placeholder,
    .form-group textarea::placeholder{color:var(--fog);}
    .form-group input:focus,
    .form-group textarea:focus,
    .form-group select:focus{border-color:var(--red);background:var(--ink-4);}
    .form-group textarea{resize:vertical;min-height:140px;}
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem;}
    .form-submit{display:flex;align-items:center;gap:2rem;margin-top:.5rem;}
    .btn-primary{display:inline-block;padding:.9rem 2.5rem;background:var(--red);color:var(--cream);font-family:'DM Sans',sans-serif;font-size:.65rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;text-decoration:none;border:none;transition:background .2s,transform .15s;}
    .btn-primary:hover{background:var(--red-hi);transform:translateY(-1px);}
    .form-note{font-size:.7rem;color:var(--fog);line-height:1.7;}

    /* CALENDLY BAND */
    .calendly-band{background:var(--ink-0);border-bottom:1px solid var(--line);padding:6rem 3.5rem;display:grid;grid-template-columns:1fr auto;align-items:center;gap:4rem;}
    .calendly-band h2{font-family:'Cormorant',serif;font-size:clamp(2rem,3.5vw,3.5rem);font-weight:300;line-height:1.2;}
    .calendly-band h2 em{font-style:italic;color:var(--red);}
    .calendly-band p{font-size:.88rem;color:var(--fog-hi);max-width:44ch;margin-top:.75rem;line-height:1.85;}
    .btn-outline{display:inline-block;padding:.9rem 2.25rem;border:1px solid var(--cream);color:var(--cream);font-size:.65rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;text-decoration:none;transition:background .2s,color .2s;white-space:nowrap;}
    .btn-outline:hover{background:var(--cream);color:var(--ink-0);}

    footer{background:var(--ink-0);border-top:1px solid var(--line);}
    .footer-inner{padding:4.5rem 3.5rem 0;display:grid;grid-template-columns:5fr 2fr 2fr;gap:5rem;}
    .footer-nav-icon{height:28px;width:auto;display:block;opacity:.9;}
    .footer-logo-link{display:flex;align-items:center;gap:.65rem;text-decoration:none;margin-bottom:1rem;}
    .footer-brand .logo{display:block;margin-bottom:.75rem;}
    .footer-brand p{font-family:'Cormorant',serif;font-style:italic;font-size:1.05rem;color:var(--fog);max-width:26ch;line-height:1.6;}
    .footer-col h4{font-size:.6rem;font-weight:600;letter-spacing:.3em;text-transform:uppercase;color:var(--red);margin-bottom:1.5rem;}
    .footer-col ul{list-style:none;}
    .footer-col li{margin-bottom:.7rem;}
    .footer-col a{font-size:.82rem;color:var(--fog-hi);text-decoration:none;transition:color .2s;}
    .footer-col a:hover{color:var(--cream);}
    .footer-bottom{margin-top:3.5rem;padding:1.5rem 3.5rem;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;}
    .footer-bottom p{font-size:.7rem;color:var(--fog);letter-spacing:.04em;}

    .reveal{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.22,1,.36,1),transform .9s cubic-bezier(.22,1,.36,1);}
    .reveal.visible{opacity:1;transform:translateY(0);}
    .d1{transition-delay:.1s;}.d2{transition-delay:.2s;}.d3{transition-delay:.35s;}

    @media(max-width:1024px){
      .contact-hero{grid-template-columns:1fr;}
      .contact-left{border-right:none;border-bottom:1px solid var(--line);padding:12rem 2.5rem 5rem;}
      .contact-right{padding:5rem 2.5rem;}
      .calendly-band{grid-template-columns:1fr;gap:2.5rem;}
      .footer-inner{grid-template-columns:1fr;gap:2.5rem;}
    }
    @media(max-width:768px){
      nav{padding:1.25rem 1.5rem;}
      nav.scrolled{padding:1rem 1.5rem;}
      .nav-links{display:none;}
      .contact-left{padding:10rem 1.5rem 4rem;}
      .contact-right{padding:4rem 1.5rem;}
      .form-row{grid-template-columns:1fr;}
      .form-submit{flex-direction:column;align-items:flex-start;}
      .calendly-band{padding:4rem 1.5rem;}
      .footer-inner{padding:3rem 1.5rem 0;}
      .footer-bottom{padding:1.5rem;flex-direction:column;gap:.5rem;text-align:center;}
    }
  
    .logo-link{display:flex;align-items:center;gap:.85rem;text-decoration:none;}
    .nav-icon{height:40px;width:auto;display:block;}

    /* Hero grain texture */
    .hero-bg::after{
      content:'';
      position:absolute;
      inset:0;
      background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
      opacity:0.025;
      pointer-events:none;
      z-index:1;
    }

  
    /* MOBILE NAV */
    .hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px;background:none;border:none;z-index:600;}
    .hamburger span{display:block;width:24px;height:1.5px;background:var(--cream);transition:transform .3s,opacity .3s;}
    .hamburger.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
    .hamburger.open span:nth-child(2){opacity:0;}
    .hamburger.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}
    .mobile-menu{position:fixed;inset:0;background:var(--ink-0);z-index:550;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:2.5rem;opacity:0;pointer-events:none;transition:opacity .35s ease;}
    .mobile-menu.open{opacity:1;pointer-events:all;}
    .mobile-menu a{font-family:'Cormorant',serif;font-size:clamp(2.5rem,8vw,3.5rem);font-weight:300;color:var(--cream);text-decoration:none;letter-spacing:.05em;transition:color .2s;}
    .mobile-menu a:hover,.mobile-menu a.active{color:var(--red);}
    .mobile-menu .menu-cta{font-family:'DM Sans',sans-serif;font-size:.75rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-0);background:var(--red);padding:.9rem 2.5rem;margin-top:1rem;}
    .mobile-menu .menu-cta:hover{color:var(--ink-0);background:var(--red-hi);}
    @media(max-width:768px){
      .hamburger{display:flex !important;}
      .nav-links{display:none !important;}
      .nav-cta{display:none !important;}
    }

  
    /* River of light */
    .rl-blob{position:absolute;border-radius:50%;will-change:transform;}
    .rl-b1{width:95%;height:45%;background:radial-gradient(ellipse,rgba(100,32,6,0.88) 0%,rgba(68,18,3,0.42) 48%,transparent 72%);top:22%;left:-15%;filter:blur(60px);animation:rlfc1 28s ease-in-out infinite alternate;}
    .rl-b2{width:75%;height:38%;background:radial-gradient(ellipse,rgba(72,22,4,0.82) 0%,rgba(50,12,2,0.36) 48%,transparent 72%);top:48%;left:18%;filter:blur(50px);animation:rlfc2 34s ease-in-out infinite alternate;}
    .rl-b3{width:65%;height:34%;background:radial-gradient(ellipse,rgba(148,50,8,0.68) 0%,rgba(108,34,6,0.26) 48%,transparent 72%);top:10%;left:40%;filter:blur(55px);animation:rlfc3 24s ease-in-out infinite alternate;}
    .rl-b4{width:80%;height:40%;background:radial-gradient(ellipse,rgba(55,15,2,0.9) 0%,rgba(38,8,1,0.4) 48%,transparent 72%);top:58%;left:5%;filter:blur(58px);animation:rlfc4 38s ease-in-out infinite alternate;}
    .rl-b5{width:50%;height:26%;background:radial-gradient(ellipse,rgba(168,60,10,0.52) 0%,rgba(128,42,7,0.18) 48%,transparent 72%);top:30%;left:60%;filter:blur(48px);animation:rlfc5 30s ease-in-out infinite alternate;}
    
    .rl-mist{position:absolute;left:0;right:0;pointer-events:none;}
    .rl-m1{top:40%;height:100px;background:linear-gradient(to right,transparent,rgba(100,40,8,0.4),transparent,rgba(80,28,5,0.3),transparent);filter:blur(16px);opacity:.2;animation:rlmist 20s ease-in-out infinite alternate;}
    .rl-m2{top:70%;height:90px;background:linear-gradient(to right,rgba(70,24,4,0.3),transparent,rgba(90,35,7,0.38),transparent);filter:blur(14px);opacity:.18;animation:rlmist 26s ease-in-out infinite alternate-reverse;}
    .rl-canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;}
    @keyframes rlfc1{0%{translate(0,0) scale(1)}  50%{translate(28%,16%) scale(1.06)}  100%{translate(52%,28%) scale(0.96)}}
    @keyframes rlfc2{0%{translate(0,0) scale(1)}  50%{translate(22%,10%) scale(1.1)}  100%{translate(44%,22%) scale(1.02)}}
    @keyframes rlfc3{0%{translate(0,0)}  50%{translate(24%,12%) scale(0.98)}  100%{translate(40%,24%) scale(1.04)}}
    @keyframes rlfc4{0%{translate(0,0) scale(1)}  50%{translate(26%,8%) scale(1.08)}  100%{translate(48%,18%) scale(0.94)}}
    @keyframes rlfc5{0%{translate(0,0)}  50%{translate(10%,10%) scale(1.04)}  100%{translate(22%,20%) scale(0.98)}}
    
    @keyframes rlmist{0%{transform:translateX(-12%)}100%{transform:translateX(12%)}}

  
    /* LOGO SYSTEM: shared Celatum mark treatment */
    .logo-lockup {
      display: inline-flex;
      align-items: center;
      gap: .9rem;
      color: var(--cream);
      text-decoration: none;
      position: relative;
      isolation: isolate;
    }
    .logo-mark-shell {
      width: 58px;
      height: 58px;
      display: grid;
      place-items: center;
      position: relative;
      flex: 0 0 auto;
      margin: -8px 0;
    }
    .logo-mark-shell::before {
      content: '';
      position: absolute;
      inset: 15%;
      border-radius: 50%;
      background:
        radial-gradient(circle, rgba(200,64,26,.19) 0%, rgba(200,64,26,.07) 38%, transparent 70%);
      opacity: .42;
      filter: blur(11px);
      transform: scale(.92);
      transition: opacity .7s ease, transform .7s ease;
    }
    .logo-mark-shell::after {
      content: '';
      position: absolute;
      inset: 26% 6% 24% 8%;
      background: linear-gradient(100deg, transparent, rgba(200,64,26,.26), transparent);
      opacity: .16;
      filter: blur(7px);
      transform: rotate(-8deg);
      pointer-events: none;
    }
    .logo-mark-img {
      width: 54px;
      height: 54px;
      display: block;
      object-fit: contain;
      position: relative;
      z-index: 2;
      opacity: .96;
      filter:
        drop-shadow(0 0 8px rgba(200,64,26,.12))
        drop-shadow(0 0 22px rgba(240,235,227,.025));
      transition: filter .55s ease, opacity .55s ease, transform .55s ease;
    }
    .logo-lockup:hover .logo-mark-shell::before {
      opacity: .78;
      transform: scale(1.08);
    }
    .logo-lockup:hover .logo-mark-img {
      opacity: 1;
      filter:
        drop-shadow(0 0 12px rgba(200,64,26,.28))
        drop-shadow(0 0 30px rgba(240,235,227,.04));
      transform: translateY(-1px);
    }
    .logo-wordmark {
      font-family:'DM Sans',sans-serif;
      font-weight:700;
      font-size:.92rem;
      letter-spacing:.18em;
      text-transform:uppercase;
      color:var(--cream);
      line-height:1;
      white-space:nowrap;
    }
    .logo-wordmark span { color: var(--red); }

    .footer-brand {
      display:flex;
      flex-direction:column;
      align-items:center;
      text-align:center;
    }
    .footer-logo-link {
      display:inline-flex;
      align-items:center;
      justify-content:center;
      text-decoration:none;
      margin:0 auto 1.35rem;
      position:relative;
      width:148px;
      height:148px;
      max-width:100%;
    }
    .footer-logo-link::before {
      content:'';
      position:absolute;
      inset: 10%;
      border-radius:50%;
      background:
        radial-gradient(circle, rgba(200,64,26,.16) 0%, rgba(200,64,26,.045) 42%, transparent 72%),
        radial-gradient(ellipse 80% 60% at 58% 42%, rgba(47,119,124,.07) 0%, transparent 74%);
      filter: blur(20px);
      opacity:.72;
      pointer-events:none;
    }
    .footer-logo-mark {
      display:block;
      width:118px;
      height:118px;
      object-fit:contain;
      opacity:.94;
      position:relative;
      z-index:2;
      filter:
        drop-shadow(0 0 14px rgba(200,64,26,.12))
        drop-shadow(0 0 26px rgba(240,235,227,.022));
    }
    .footer-brand p {
      margin:0 auto;
      max-width:31ch;
      font-family:'Cormorant',serif;
      font-style:italic;
      font-size:1.05rem;
      color:var(--fog);
      line-height:1.6;
    }
    @media(max-width:768px){
      .logo-mark-shell { width: 46px; height: 46px; margin:-6px 0; }
      .logo-mark-img { width: 43px; height: 43px; }
      .logo-wordmark { font-size:.76rem; letter-spacing:.14em; }
      .footer-logo-link { width:132px; height:132px; }
      .footer-logo-mark { width:104px; height:104px; }
    }

  
    /* SITE PERFORMANCE PASS: smoother scrolling while preserving atmosphere */
    canvas,
    .rl-canvas,
    .river-ripples,
    .hero-bg,
    .page-header-bg,
    .service-hero-bg,
    .contact-left,
    .contact-right,
    .method-hero-field,
    .signal-hero,
    .featured,
    .services-hero,
    .page-header {
      contain: layout paint style;
    }

    .rl-blob,
    .particle,
    .signal-cloud,
    .sediment-tide,
    .sediment-cool-resonance,
    [class*="glow"],
    [class*="pulse"],
    [class*="field"],
    [class*="gas"],
    [class*="mist"] {
      will-change: transform, opacity;
      transform: translateZ(0);
    }

    .reveal,
    .flow-step,
    .service-entry,
    .dossier-card,
    .contact-link-row,
    .signal-card,
    .article-card,
    .principle-card,
    .pattern-item {
      backface-visibility: hidden;
      transform: translateZ(0);
    }

    @media(max-width:768px) {
      nav.scrolled {
        backdrop-filter: blur(10px);
      }

      .rl-canvas,
      .river-ripples {
        opacity: .48;
        mix-blend-mode: normal !important;
      }

      .rl-blob,
      .particle {
        animation-duration: calc(var(--duration, 1s) * 1.4);
      }

      [class*="glow"],
      [class*="pulse"],
      [class*="field"],
      [class*="gas"],
      [class*="mist"] {
        filter: none;
      }

      .hero-bg [class*="rl-b"],
      .page-header-bg [class*="rl-b"],
      .service-hero-bg [class*="rl-b"] {
        filter: blur(38px) !important;
      }

      .flow-step,
      .service-entry,
      .dossier-card,
      .contact-link-row,
      .signal-card,
      .article-card {
        transition:
          background .45s ease,
          color .35s ease,
          transform .4s cubic-bezier(.22,1,.36,1),
          box-shadow .45s ease,
          border-color .45s ease !important;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: .001ms !important;
      }

      canvas,
      .rl-canvas,
      .river-ripples {
        display: none !important;
      }
    }