:root{--bg:#eef2f7;--panel:#fff;--text:#132234;--muted:#526477;--line:#cdd8e2;--brand:#1f4c73;--glow:#e9f1f8;--shadow:0 12px 35px rgba(10,27,46,.07)}
html[data-theme=dark]{--bg:#080e16;--panel:#101b29;--text:#f0f5fa;--muted:#abc0d1;--line:#304053;--brand:#89b6dc;--glow:#17293c;--shadow:0 16px 40px rgba(0,0,0,.2)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Arial,sans-serif;line-height:1.58}a{color:inherit}img{max-width:100%;height:auto}button,input{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #ffae64;outline-offset:3px}.container{width:min(1120px,calc(100% - 36px));margin:auto}.site-header{position:sticky;top:0;z-index:100;background:var(--panel);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}.header-inner{min-height:72px;display:flex;align-items:center;gap:18px}.brand-link{display:flex;align-items:center;margin-right:auto;min-width:0}.brand-link img{height:48px;width:auto;max-width:min(260px,100%);object-fit:contain}.site-nav{display:flex;align-items:center;gap:4px}.site-nav a{font-size:14px;text-decoration:none;font-weight:650;padding:8px 11px;border-radius:9px;white-space:nowrap}.site-nav a:hover,.site-nav a[aria-current=page]{background:var(--glow);color:var(--brand)}.header-controls{display:flex;align-items:center;gap:8px}.icon-btn,.lang-link,.menu-btn{border:1px solid var(--line);color:var(--text);background:transparent;border-radius:10px;padding:7px 10px;text-decoration:none;font-size:13px;font-weight:700}.lang-link[aria-current=page]{color:var(--brand);background:var(--glow)}.menu-btn{display:none}.banner{margin-top:19px;border-radius:18px;overflow:hidden;height:115px;border:1px solid var(--line)}.banner img{width:100%;height:100%;object-fit:cover}.main{padding:24px 0 36px}.section{margin:0 0 20px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:19px;padding:clamp(20px,3.5vw,32px);box-shadow:var(--shadow)}.eyebrow{font-size:12px;letter-spacing:.17em;text-transform:uppercase;color:var(--brand);font-weight:850}h1{font-size:clamp(30px,4vw,49px);letter-spacing:-.035em;line-height:1.14;margin:10px 0 15px}h2{font-size:clamp(22px,2.5vw,29px);line-height:1.23;margin:0 0 12px}h3{font-size:18px;margin:0 0 9px}.lead{font-size:clamp(16px,1.8vw,19px);max-width:790px;color:var(--muted);margin:0 0 22px}.muted{color:var(--muted)}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;text-decoration:none;border:1px solid var(--line);border-radius:11px;background:var(--panel);color:var(--text);padding:10px 16px;font-size:14px;font-weight:750;transition:transform .15s}.btn:hover{transform:translateY(-2px)}.btn.primary{background:#245780;border-color:#245780;color:white}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.tile{padding:22px;border-radius:15px;border:1px solid var(--line);background:var(--panel);text-decoration:none;display:block;transition:border .2s,transform .2s}.tile[href]:hover{border-color:var(--brand);transform:translateY(-2px)}.tile p{margin:0 0 10px;color:var(--muted);font-size:14px}.tile .arrow{font-size:14px;font-weight:750;color:var(--brand)}.section-header{display:flex;align-items:end;justify-content:space-between;gap:12px;margin:0 0 14px}.section-header p{margin:0;color:var(--muted)}.section-header .btn{flex-shrink:0}.project-preview .sub{font-size:13px;color:var(--muted)}.pill{display:inline-block;padding:4px 9px;border-radius:100px;background:var(--glow);color:var(--brand);font-size:12px;font-weight:700;margin:3px}.footer{border-top:1px solid var(--line);padding:25px 0 35px;color:var(--muted);font-size:13px}.footer-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}.footer a:hover{color:var(--brand)}.split{display:grid;grid-template-columns:1.3fr 1fr;gap:14px}.portrait{width:112px;height:112px;object-fit:cover;border-radius:100%;border:3px solid var(--line);float:right;margin-left:15px}.detail-list{padding-left:22px}.detail-list li{margin:7px 0}.filter-wrap{margin:15px 0}.filters,.advanced-buttons{display:flex;flex-wrap:wrap;gap:9px}.chip{padding:8px 12px;border-radius:999px;background:var(--panel);border:1px solid var(--line);color:var(--text);font-size:13px;font-weight:700}.chip:hover{border-color:var(--brand)}.chip.active{background:linear-gradient(#ffb37a,#fff0e4);color:#101010;border-color:#ffb37a}.searchbar{display:flex;flex-wrap:wrap;gap:9px;margin:14px 0;align-items:center}.searchbar input{min-width:170px;flex:1;background:var(--panel);border:1px solid var(--line);border-radius:11px;padding:11px 13px;color:var(--text)}.counter{color:var(--muted);font-size:13px}.advanced{margin-top:12px}.advanced>summary{cursor:pointer;font-weight:700;font-size:14px;color:var(--brand);padding:8px 0}.advanced-buttons{padding:10px 0}.project-list{display:grid;gap:10px}.project-list details.item{border:1px solid var(--line);border-radius:13px;background:var(--panel);overflow:hidden}.project-list details.item[hidden]{display:none!important}.project-list details.item summary{cursor:pointer;padding:15px 44px 15px 17px;position:relative;list-style:none}.project-list details.item summary::-webkit-details-marker{display:none}.project-list details.item summary:after{content:'+';font-size:22px;position:absolute;right:19px;top:14px;color:var(--brand)}.project-list details.item[open] summary:after{content:'−'}.project-list .topline{display:flex;justify-content:space-between;gap:12px}.project-list .role{font-weight:800}.project-list .when{color:var(--muted);font-size:12px;white-space:nowrap}.project-list .sub{color:var(--muted);font-size:13px;margin:5px 0}.project-list .tags{margin-top:8px;display:flex;flex-wrap:wrap;gap:5px}.project-list .tag{display:inline-block;border:1px solid var(--line);border-radius:100px;padding:2px 8px;font-size:11px}.project-list .body{padding:0 17px 14px;font-size:14px}.project-list .body li{margin:7px 0}.show-more-row{text-align:center;margin-top:17px}.show-more-row[hidden]{display:none}.empty[hidden]{display:none}.info-rows{display:grid;gap:8px}.info-row{display:flex;flex-wrap:wrap;gap:9px;justify-content:space-between;border-bottom:1px solid var(--line);padding:9px 0}.info-row strong{overflow-wrap:anywhere}.service-block{scroll-margin-top:100px}.service-block p{color:var(--muted)}.backlink{font-size:14px;font-weight:750;color:var(--brand)}.callout{background:var(--glow);border-color:var(--line)}
@media(max-width:850px){.header-inner{flex-wrap:wrap;padding:11px 0}.menu-btn{display:block}.site-nav{display:none;order:10;width:100%;flex-direction:column;align-items:stretch}.site-nav.is-open{display:flex}.site-nav a{padding:11px}.grid.three{grid-template-columns:1fr 1fr}.split{grid-template-columns:1fr}}
@media(max-width:560px){.container{width:min(100% - 22px,1120px)}.brand-link img{max-width:174px;height:40px}.header-inner{gap:8px}.icon-btn,.lang-link,.menu-btn{padding:7px;font-size:12px}.banner{height:85px}.grid,.grid.three{grid-template-columns:1fr}.section-header{align-items:start;flex-direction:column}.project-list .topline{flex-direction:column;gap:0}.project-list .when{white-space:normal}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* Revised four-page layout */
.hero-revised{padding-top:clamp(30px,5vw,54px);padding-bottom:clamp(30px,5vw,54px);background:linear-gradient(115deg,var(--panel),var(--glow))}.hero-revised h1{max-width:820px;font-size:clamp(34px,4.5vw,58px)}.hero-revised .lead{max-width:850px}.expertise-tile{min-height:200px;display:flex;flex-direction:column;justify-content:flex-start}.expertise-tile p{flex:1;font-size:15px;line-height:1.55}.project-preview{display:flex;flex-direction:column}.project-preview p{flex:1}.about-home{display:grid;grid-template-columns:minmax(0,1fr) 210px;gap:30px;align-items:center}.about-home p{max-width:770px}.about-portrait{width:210px;height:210px;border-radius:22px;object-fit:cover;border:2px solid var(--line)}.detailed-service{scroll-margin-top:100px}.detailed-service h2{margin-bottom:15px}.service-copy{max-width:880px}.service-copy p{font-size:16px;line-height:1.75;margin:0 0 15px}.service-tags{margin-top:18px}.copy-email{font:inherit}.copy-feedback{min-height:1.6em;color:var(--brand);font-weight:650}.project-list details.item:target{outline:2px solid var(--brand);scroll-margin-top:110px}
@media(max-width:650px){.about-home{grid-template-columns:1fr}.about-portrait{grid-row:1;width:145px;height:145px}.expertise-tile{min-height:auto}}

/* NadTec layout refinements */
.hero-profile{display:grid;grid-template-columns:minmax(0,1fr) 175px;gap:24px;align-items:center;border-top:1px solid var(--line);margin-top:28px;padding-top:25px}.hero-profile-text h2{margin:0 0 8px}.hero-profile-text p{color:var(--muted);margin:0 0 14px}.hero-profile-text .btn{margin-top:3px}.hero-profile .about-portrait{width:175px;height:175px}.services-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:stretch}.service-card{display:flex;flex-direction:column;padding:25px;scroll-margin-top:90px}.service-card .service-copy{flex:1}.service-card h2{font-size:23px}.service-card .service-copy p{font-size:14px;line-height:1.65;margin:0 0 12px}.service-card .service-tags{margin:6px 0 15px}.service-project-link{display:inline-flex;margin-top:auto;color:var(--brand);font-weight:750;text-decoration:none}.service-project-link:hover{text-decoration:underline}.service-intro-extra{max-width:900px;color:var(--muted);margin:0}.contact-form-card form{display:grid;gap:15px}.contact-form-card label{display:grid;gap:6px;font-weight:650}.contact-form-card input,.contact-form-card textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:11px;background:var(--bg);color:var(--text);font:inherit}.contact-form-card textarea{resize:vertical}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.contact-form-card .btn{justify-self:start}.contact-form-card p{margin:0}
@media(max-width:710px){.services-grid,.hero-profile,.form-grid{grid-template-columns:1fr}.hero-profile .about-portrait{width:145px;height:145px;grid-row:1}.service-card{padding:20px}}

.profile-card{display:grid;grid-template-columns:112px minmax(0,1fr);gap:18px;align-items:center;margin-bottom:18px}.profile-card .about-portrait{width:112px;height:112px;border-radius:18px}.profile-panel p{margin-top:0}@media(max-width:710px){.profile-card{grid-template-columns:1fr}.profile-card .about-portrait{width:145px;height:145px}}

/* Contact page and mobile navigation refinements */
.linkedin-icon{width:46px;height:43px;padding:10px;display:inline-flex;align-items:center;justify-content:center;color:#0a66c2}
.linkedin-icon:hover{color:#084a8c}
.linkedin-icon svg{display:block;width:19px;height:19px}
@media(max-width:850px){
  .menu-btn{display:inline-flex!important;align-items:center;justify-content:center;min-width:44px;min-height:44px;border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--text);font-size:22px;font-weight:700;cursor:pointer}
  .header-inner{position:relative}
  .header-controls{margin-left:auto}
  .site-nav{position:absolute;top:100%;left:0;right:0;z-index:50;padding:12px;background:var(--panel);border:1px solid var(--line);border-radius:0 0 14px 14px;box-shadow:0 12px 22px rgba(0,0,0,.16)}
  .site-nav.is-open{display:flex}
  .site-nav a{display:block;font-size:16px;font-weight:700;padding:14px 16px}
}

/* NadTec v6: three consistent text sizes throughout the site */
:root{--font-heading:36px;--font-subheading:23px;--font-body:16px}
body,body p,body li,body span,body label,body a,body button,body input,body textarea,body summary,body strong,body small,body .lead,body .muted,body .eyebrow,body .btn,body .pill,body .chip,body .tag,body .when,body .sub,body .counter,body .service-project-link,body .site-nav a,body .lang-link,body .icon-btn,body .menu-btn,body .footer,body .project-list .body,body .tile p,body .tile .arrow,body .service-card .service-copy p,body .project-list .tag,body .project-list .sub,body .project-list .when,body .advanced>summary {font-size:var(--font-body)}
body h1{font-size:var(--font-heading);line-height:1.17}
body h2,body h3,body .service-card h2{font-size:var(--font-subheading);line-height:1.3}
.linkedin-area{margin-top:22px;display:flex;flex-direction:column;align-items:flex-start;gap:9px}
.linkedin-area .linkedin-caption{margin:0;color:var(--muted)}
.linkedin-area .linkedin-icon{margin:0}
@media(max-width:600px){:root{--font-heading:32px;--font-subheading:23px;--font-body:16px}}

/* NadTec V7: discreet atmospheric light. Non-interactive, behind all content. */
html { background: var(--bg); }
body { isolation: isolate; background: transparent; min-height: 100vh; }
body::before {
  content: "";
  position: fixed;
  inset: -14%;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse 45% 55% at 18% 25%, rgba(77,153,210,.085), transparent 76%),
    radial-gradient(ellipse 40% 50% at 82% 75%, rgba(71,133,196,.065), transparent 78%);
  background-repeat: no-repeat;
  animation: nadtecAmbient 34s ease-in-out infinite alternate;
  will-change: transform;
}
html:not([data-theme="dark"]) body::before { opacity: .48; }
@keyframes nadtecAmbient {
  from { transform: translate3d(-2%, -1%, 0) scale(1); }
  to { transform: translate3d(2%, 2%, 0) scale(1.07); }
}
@media (prefers-reduced-motion: reduce) {
  body::before { animation: none; transform: none; will-change: auto; }
}