:root{
  --ink:#14232e;--ink2:#213845;--paper:#f7f6f2;--white:#fff;--accent:#d8792f;--muted:#6a7780;--line:#d9dedf;--soft:#ecefeb;--dark:#10212b;--max:1180px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.65}a{color:inherit}.wrap{width:min(var(--max),calc(100% - 40px));margin-inline:auto}.site-header{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:28px;padding:14px max(20px,calc((100% - var(--max))/2));background:rgba(247,246,242,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;margin-inline-end:auto}.brand-mark{display:grid;place-items:center;width:42px;height:42px;background:var(--ink);color:white;font-weight:800;letter-spacing:.06em}.brand-copy{display:flex;flex-direction:column;line-height:1.2}.brand-copy small{color:var(--muted);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;margin-top:4px}.nav{display:flex;gap:20px}.nav a{text-decoration:none;font-size:.92rem;color:var(--ink2)}.nav a:hover{color:var(--accent)}.header-actions{display:flex;gap:8px}.lang-toggle,.menu-toggle{border:1px solid var(--line);background:white;color:var(--ink);padding:9px 12px;cursor:pointer}.menu-toggle{display:none}.ar{display:none}html[dir="rtl"] .en{display:none}html[dir="rtl"] .ar{display:inline}html[dir="rtl"] body{text-align:right;font-family:"Segoe UI",Tahoma,Arial,sans-serif}.hero{position:relative;overflow:hidden;background:var(--dark);color:white;min-height:610px;display:flex;align-items:center}.grid-lines{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(to right,black,transparent 80%)}html[dir="rtl"] .grid-lines{mask-image:linear-gradient(to left,black,transparent 80%)}.hero:after{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(216,121,47,.5);border-radius:50%;right:-120px;top:70px;box-shadow:0 0 0 80px rgba(216,121,47,.05),0 0 0 160px rgba(216,121,47,.025)}html[dir="rtl"] .hero:after{right:auto;left:-120px}.hero-inner{position:relative;z-index:2;padding-block:90px;max-width:900px;margin-inline:calc((100% - min(var(--max),calc(100% - 40px)))/2) auto}.eyebrow{font-size:.78rem;text-transform:uppercase;letter-spacing:.16em;color:var(--accent);font-weight:800}.hero h1{font-family:Georgia,"Times New Roman",serif;font-size:clamp(3.2rem,7vw,6.5rem);line-height:.98;margin:.16em 0 .2em;letter-spacing:-.04em}.role{font-size:clamp(1.05rem,2vw,1.4rem);font-weight:650;color:#dbe5e8}.lead{font-size:1.1rem;max-width:760px;color:#bfcdd2}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 18px;border:1px solid transparent;text-decoration:none;font-weight:750;cursor:pointer}.btn.primary{background:var(--accent);color:white}.btn.secondary{border-color:#71828a;color:white;background:transparent}.hero-note{margin-top:34px;border-left:3px solid var(--accent);padding:8px 14px;color:#aebdc3;font-size:.9rem;max-width:760px}html[dir="rtl"] .hero-note{border-left:0;border-right:3px solid var(--accent)}.metrics{display:grid;grid-template-columns:repeat(4,1fr);margin-top:-42px;position:relative;z-index:3;background:white;box-shadow:0 18px 50px rgba(16,33,43,.12)}.metrics article{padding:28px;border-right:1px solid var(--line)}.metrics article:last-child{border-right:0}.metrics strong{display:block;font-size:1.55rem;color:var(--ink)}.metrics span{color:var(--muted);font-size:.88rem}.section{padding-block:88px}.section-head{max-width:860px;margin-bottom:38px}.section-head h2,.contact-section h2,.publication h2{font-family:Georgia,"Times New Roman",serif;font-size:clamp(2.2rem,4.2vw,4rem);line-height:1.08;letter-spacing:-.035em;margin:.15em 0}.section-intro{color:var(--muted);max-width:800px}.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px}.prose{font-size:1.04rem;color:var(--ink2)}.expertise{display:grid;grid-template-columns:1fr 1fr;gap:12px}.expertise article{background:white;border:1px solid var(--line);padding:22px}.expertise b{color:var(--accent);font-size:.8rem}.expertise h3{margin:.2rem 0}.expertise p{margin:0;color:var(--muted);font-size:.9rem}.dark{background:var(--dark);color:white}.light h2{color:white}.timeline{display:grid;gap:12px}.timeline article{position:relative;padding:24px 24px 24px 180px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.09)}html[dir="rtl"] .timeline article{padding:24px 180px 24px 24px}.timeline time{position:absolute;left:24px;top:26px;color:var(--accent);font-weight:800;font-size:.9rem}html[dir="rtl"] .timeline time{left:auto;right:24px}.timeline h3{font-size:1.25rem;margin:0}.timeline h4{margin:4px 0 8px;color:#c9d3d7;font-weight:600}.timeline p{margin:0 0 8px;color:#aebcc2}.official{display:inline-flex;margin-top:8px;color:#f3a05f;text-decoration:none;font-weight:750;font-size:.9rem}.official:hover{text-decoration:underline}.project-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.project-grid article{padding:28px;background:white;border:1px solid var(--line);position:relative}.tag{display:inline-block;color:var(--accent);font-weight:800;font-size:.74rem;text-transform:uppercase;letter-spacing:.12em}.project-grid h3{font-size:1.28rem;line-height:1.25;margin:.6rem 0 1rem}.project-grid p{color:var(--muted)}dl{margin:0}dl div{display:grid;grid-template-columns:130px 1fr;gap:12px;padding:7px 0;border-top:1px solid var(--line)}dt{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:750}dd{margin:0}.soft{background:var(--soft)}.credential-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.credential-grid article{background:white;border-top:4px solid var(--ink);padding:24px;min-height:190px}.credential-grid .year{color:var(--accent);font-weight:800;font-size:.82rem;text-transform:uppercase;letter-spacing:.08em}.credential-grid h3{font-size:1.18rem;line-height:1.25}.credential-grid p{color:var(--muted)}.publication-card{border:1px solid var(--line);padding:46px;background:white;position:relative;overflow:hidden}.publication-card:after{content:"PM";position:absolute;right:20px;bottom:-55px;font-family:Georgia,serif;font-size:180px;color:rgba(20,35,46,.045);font-weight:bold}html[dir="rtl"] .publication-card:after{right:auto;left:20px}.publication-card h2{max-width:900px;font-size:clamp(2rem,3.7vw,3.5rem)}.contact-section{background:#e7e3dc}.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px}.privacy-note{margin-top:24px;padding:16px;background:rgba(255,255,255,.7);border-left:3px solid var(--accent)}html[dir="rtl"] .privacy-note{border-left:0;border-right:3px solid var(--accent)}.contact-form{display:grid;gap:14px;background:white;padding:30px;border:1px solid #d3cec6}.contact-form label{display:grid;gap:7px;font-size:.88rem;font-weight:700}.contact-form input,.contact-form textarea{font:inherit;padding:12px;border:1px solid #bbc3c4;background:#fbfbf9;color:var(--ink);width:100%}.contact-form textarea{resize:vertical}.form-status{min-height:1.3em;margin:0;color:var(--muted);font-size:.88rem}.site-footer{background:#08151d;color:#cad5da;padding:42px 0}.footer-grid{display:grid;grid-template-columns:.4fr 1.6fr;gap:50px}.site-footer p{margin:.4rem 0;color:#9babb2}.disclaimer{font-size:.78rem}.disclaimer p{max-width:900px}.site-footer strong{color:white}@media(max-width:920px){.nav{display:none;position:absolute;top:71px;left:0;right:0;background:var(--paper);padding:18px 20px;border-bottom:1px solid var(--line);flex-direction:column}.nav.open{display:flex}.menu-toggle{display:block}.metrics{grid-template-columns:1fr 1fr}.about-grid,.contact-grid{grid-template-columns:1fr}.credential-grid{grid-template-columns:1fr 1fr}.project-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.timeline article,html[dir="rtl"] .timeline article{padding:70px 22px 22px}.timeline time,html[dir="rtl"] .timeline time{top:20px;left:22px;right:auto}html[dir="rtl"] .timeline time{right:22px;left:auto}.hero{min-height:560px}.hero-inner{padding-block:75px}}@media(max-width:600px){.wrap{width:min(var(--max),calc(100% - 26px))}.brand-copy small{display:none}.brand-copy strong{font-size:.84rem}.metrics{grid-template-columns:1fr;margin-top:0}.metrics article{border-right:0;border-bottom:1px solid var(--line)}.expertise,.credential-grid{grid-template-columns:1fr}.section{padding-block:64px}.hero h1{font-size:clamp(3rem,17vw,5rem)}.publication-card{padding:30px 22px}.site-header{padding-inline:13px}.timeline p{font-size:.92rem}dl div{grid-template-columns:1fr}}

/* V4.1: transparent labeling for third-party editorial references */
.reference-note {
  margin-top: .65rem;
  font-size: .78rem;
  line-height: 1.55;
  opacity: .72;
}
.external-reference::before {
  content: "↗ ";
  opacity: .7;
}

/* Professional identity line */
.profile-identity {
  margin: .35rem 0 .8rem;
  font-size: clamp(1.02rem, 1.7vw, 1.28rem);
  font-weight: 700;
  letter-spacing: .015em;
  color: var(--accent, #b8892e);
}
html[dir="rtl"] .profile-identity { letter-spacing: 0; }

.hp-field{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;opacity:0!important;pointer-events:none!important}.form-success,.form-error{display:none;padding:12px 14px;border:1px solid var(--line);font-size:.9rem}.form-success[data-fs-active],.form-error[data-fs-active]{display:block}.form-success{background:#f1f7f3}.form-error{background:#fff3f1}.field-error{font-size:.8rem;color:#9a332a}.contact-form [aria-invalid="true"]{border-color:#9a332a}