/* Productive Interactions — refined editorial system */
:root{--red:#d51f2a;--red2:#a90f18;--navy:#162231;--navy2:#253549;--ink:#26313e;--muted:#65717e;--cream:#faf6f2;--paper:#fffdfb;--rose:#fff0f1;--line:#e8dfda;--soft:#f5efeb;--gold:#b28a6d;--radius:18px;--shadow:0 20px 55px rgba(21,30,43,.09);--serif:Georgia,'Times New Roman',serif;--sans:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.72;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button{font:inherit}.container{width:min(1180px,calc(100% - 44px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;padding:10px 14px;z-index:9999;border:2px solid var(--red)}
.site-header{position:sticky;top:0;z-index:70;background:rgba(255,253,251,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(22,34,49,.07)}.nav-wrap{min-height:84px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:13px}.brand img{width:43px;height:43px;object-fit:contain}.brand-copy strong{display:block;font:400 23px/1.05 var(--serif);color:var(--navy)}.brand-copy small{display:block;margin-top:4px;font-size:9px;letter-spacing:.21em;text-transform:uppercase;color:var(--red2);font-weight:800}.nav{display:flex;align-items:center;gap:26px}.nav>a:not(.btn){font-size:13px;font-weight:750;color:var(--navy2)}.nav>a:not(.btn):hover,.nav>a.active{color:var(--red)}.menu{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 12px;color:var(--navy);font-weight:800}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:13px 20px;border:1px solid transparent;font-weight:800;font-size:13px;letter-spacing:.015em;transition:.2s transform,.2s box-shadow,.2s background}.btn:hover{transform:translateY(-2px)}.btn-red{background:linear-gradient(135deg,var(--red),var(--red2));color:#fff;box-shadow:0 12px 27px rgba(213,31,42,.19)}.btn-dark{background:var(--navy);color:#fff}.btn-outline{border-color:#bfc5ca;background:transparent;color:var(--navy)}.btn-text{padding:0;color:var(--red2);min-height:auto}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--red2);font-size:11px;letter-spacing:.12em;text-transform:uppercase;font-weight:850}.eyebrow:before{content:'';width:28px;height:2px;background:var(--red)}.hero{background:radial-gradient(circle at 12% 12%,rgba(213,31,42,.10),transparent 35%),linear-gradient(180deg,#fff 0%,#faf5f2 100%);padding:64px 0 62px}.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}.hero h1{font:400 clamp(46px,6vw,78px)/.98 var(--serif);letter-spacing:-.048em;color:var(--navy);margin:19px 0 22px}.hero p.lead{font-size:19px;max-width:670px;color:#4e5a67;margin:0 0 28px}.actions{display:flex;flex-wrap:wrap;gap:12px}.authority-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}.authority-row span{font-size:12px;font-weight:800;color:#52606d;padding:8px 10px;border:1px solid var(--line);background:rgba(255,255,255,.75)}.hero-visual{position:relative}.hero-main{width:100%;aspect-ratio:5/4;object-fit:cover;box-shadow:var(--shadow)}.profile-chip{position:absolute;left:-32px;bottom:26px;background:#fff;padding:12px;width:min(330px,86%);display:grid;grid-template-columns:70px 1fr;gap:12px;align-items:center;box-shadow:var(--shadow);border-left:5px solid var(--red)}.profile-chip img{width:70px;height:82px;object-fit:cover}.profile-chip strong{font:400 21px/1.05 var(--serif);color:var(--navy)}.profile-chip small{display:block;color:var(--muted);font-size:12px;margin-top:5px}
.trust{border-block:1px solid var(--line);background:#fff}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}.trust-item{padding:24px 18px;border-right:1px solid var(--line)}.trust-item:last-child{border-right:0}.trust-item strong{display:block;font:400 26px/1.05 var(--serif);color:var(--navy)}.trust-item span{display:block;margin-top:6px;font-size:12px;color:var(--muted)}
.section{padding:88px 0}.section.soft{background:var(--cream)}.section.dark{background:var(--navy);color:#fff}.section-head{display:grid;grid-template-columns:.74fr 1.26fr;gap:40px;align-items:end;margin-bottom:42px}.section h2{font:400 clamp(36px,4.5vw,58px)/1.03 var(--serif);letter-spacing:-.035em;color:var(--navy);margin:10px 0 0}.section.dark h2{color:#fff}.section-head p{font-size:17px;color:#5d6975;margin:0;max-width:720px}.section.dark .section-head p{color:#cbd3dc}.service-list{border-top:1px solid var(--line)}.service{display:grid;grid-template-columns:76px 1fr .86fr;gap:28px;padding:28px 0;border-bottom:1px solid var(--line);align-items:start}.service .num{color:var(--red);font-size:12px;font-weight:850;letter-spacing:.1em}.service h3{font:400 31px/1.12 var(--serif);color:var(--navy);margin:0}.service p{margin:0;color:#596572}.service a{color:var(--red2);font-weight:800}
.bio-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:62px;align-items:start}.portrait{position:sticky;top:116px}.portrait img{width:100%;max-height:650px;object-fit:cover}.bio h2{font:400 clamp(38px,4vw,56px)/1.03 var(--serif);color:var(--navy);margin:10px 0 20px}.bio p{font-size:17px;color:#53606c}.quick-facts{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:28px;border-top:1px solid var(--line)}.fact{padding:18px 0;border-bottom:1px solid var(--line)}.fact:nth-child(odd){padding-right:18px}.fact:nth-child(even){padding-left:18px;border-left:1px solid var(--line)}.fact strong{display:block;color:var(--navy);font-size:13px}.fact span{display:block;color:var(--muted);font-size:13px;margin-top:3px}
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.topic{padding:26px;background:#fff;border:1px solid var(--line);min-height:240px;display:flex;flex-direction:column}.topic .tag{font-size:10px;color:var(--red);text-transform:uppercase;letter-spacing:.13em;font-weight:850}.topic h3{font:400 28px/1.13 var(--serif);color:var(--navy);margin:10px 0 12px}.topic p{font-size:14px;color:#5e6974;margin:0 0 18px}.topic a{margin-top:auto;color:var(--red2);font-weight:800;font-size:13px}
.feature-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px}.feature-card{background:#fff;border:1px solid var(--line);padding:30px}.feature-card h3{font:400 34px/1.08 var(--serif);color:var(--navy);margin:11px 0 14px}.feature-card p{color:#5c6873}.feature-card .meta{font-size:11px;color:var(--red);text-transform:uppercase;letter-spacing:.12em;font-weight:850}.feature-card.big{padding:0;overflow:hidden}.feature-card.big img{width:100%;aspect-ratio:16/9;object-fit:cover}.feature-card.big .pad{padding:28px}.pub-list{display:grid;gap:0;border-top:1px solid var(--line)}.pub{display:grid;grid-template-columns:86px 1fr auto;gap:20px;padding:23px 0;border-bottom:1px solid var(--line);align-items:start}.pub .year{font-weight:850;color:var(--red2)}.pub h3{font-size:18px;color:var(--navy);margin:0 0 5px}.pub p{font-size:13px;color:var(--muted);margin:0}.pub a{font-size:13px;color:var(--red2);font-weight:800;white-space:nowrap}
.video-wrap{aspect-ratio:16/9;background:#0b1119;overflow:hidden}.video-wrap iframe{width:100%;height:100%;border:0}.quote{padding:38px;background:linear-gradient(135deg,#1d2a3b,#111a26);color:white}.quote p{font:400 31px/1.26 var(--serif);margin:0}.quote small{display:block;color:#f5b6ba;margin-top:18px;text-transform:uppercase;letter-spacing:.1em;font-size:10px;font-weight:850}
.article-hero{padding:62px 0 44px;background:linear-gradient(180deg,#fff,#faf5f2)}.article-hero h1{font:400 clamp(43px,5vw,70px)/1.0 var(--serif);color:var(--navy);letter-spacing:-.04em;max-width:980px;margin:18px 0}.article-hero p{max-width:820px;color:#586572;font-size:18px}.article-wrap{display:grid;grid-template-columns:1fr 300px;gap:70px;padding:58px 0 94px}.article{max-width:760px}.article h2{font:400 38px/1.1 var(--serif);color:var(--navy);margin:44px 0 12px}.article h3{font-size:21px;color:var(--navy);margin:28px 0 8px}.article p,.article li{font-size:17px;color:#45525f}.article ul{padding-left:22px}.pull{border-left:4px solid var(--red);background:var(--rose);padding:20px 22px;margin:30px 0;font:400 24px/1.36 var(--serif);color:var(--navy)}.sidebar{position:sticky;top:112px;align-self:start}.sidebar-card{border-top:4px solid var(--red);padding:18px 0;border-bottom:1px solid var(--line)}.sidebar-card h3{font:400 25px/1.15 var(--serif);color:var(--navy);margin:0 0 10px}.sidebar-card p{font-size:13px;color:var(--muted)}.sources{padding:22px;background:#f8f4f1;border:1px solid var(--line);margin-top:42px}.sources h3{font-size:14px;margin:0 0 13px;color:var(--navy)}.sources li{font-size:13px!important;margin-bottom:8px}.sources a{color:var(--red2);text-decoration:underline}.breadcrumb{font-size:12px;color:var(--muted)}
.faq{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{cursor:pointer;list-style:none;padding:20px 0;display:flex;justify-content:space-between;gap:20px;font-weight:800;color:var(--navy)}summary::-webkit-details-marker{display:none}details p{margin:0 0 20px;color:#5d6974;max-width:850px}.cta{padding:80px 0;background:var(--navy);color:#fff}.cta-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:50px;align-items:center}.cta h2{font:400 clamp(38px,4.5vw,58px)/1.04 var(--serif);margin:0 0 14px}.cta p{color:#cbd3dc;font-size:17px}.contact-card{border:1px solid rgba(255,255,255,.18);padding:26px}.contact-card a{display:block;color:#fff;font-weight:800;margin-top:10px}.contact-card small{color:#b9c5d0}
.site-footer{padding:38px 0;background:#101923;color:#bfc7cf}.footer-grid{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:start}.footer-brand{display:flex;gap:12px;align-items:center}.footer-brand img{width:38px}.footer-brand strong{font:400 20px var(--serif);color:#fff}.footer-brand small{display:block;font-size:9px;text-transform:uppercase;letter-spacing:.18em;color:#ef9ca2}.footer-links{display:flex;gap:16px;flex-wrap:wrap;justify-content:flex-end;font-size:13px}.copyright{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.09);padding-top:18px;font-size:12px;display:flex;gap:20px;justify-content:space-between;flex-wrap:wrap}.builder a{color:#fff;text-decoration:underline}.email-link{color:var(--red2);font-weight:800}
.kb{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line);margin-top:25px}.kb div{padding:18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.kb strong{display:block;color:var(--navy);font-size:13px}.kb span{font-size:12px;color:var(--muted)}
@media(max-width:980px){.hero-grid,.bio-grid,.feature-grid,.article-wrap,.cta-grid{grid-template-columns:1fr}.profile-chip{left:18px}.trust-grid{grid-template-columns:1fr 1fr}.topic-grid{grid-template-columns:1fr 1fr}.section-head{grid-template-columns:1fr}.service{grid-template-columns:60px 1fr}.service>p{grid-column:2}.portrait{position:static;max-width:480px}.article{max-width:none}.sidebar{position:static}.kb{grid-template-columns:1fr 1fr}}
@media(max-width:780px){.nav{display:none;position:absolute;left:0;right:0;top:83px;background:#fff;padding:20px 22px 28px;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start}.nav.open{display:flex}.menu{display:block}.hero{padding-top:38px}.hero h1{font-size:49px}.topic-grid{grid-template-columns:1fr}.pub{grid-template-columns:64px 1fr}.pub>a{grid-column:2}.profile-chip{position:relative;left:auto;bottom:auto;margin-top:12px;width:100%}.footer-grid{grid-template-columns:1fr}.footer-links{justify-content:flex-start}.quick-facts{grid-template-columns:1fr}.fact:nth-child(even){padding-left:0;border-left:0}.fact:nth-child(odd){padding-right:0}}
@media(max-width:540px){.container{width:min(1180px,calc(100% - 28px))}.brand-copy strong{font-size:18px}.brand-copy small{font-size:8px;letter-spacing:.13em}.hero h1{font-size:43px}.hero p.lead{font-size:17px}.actions{flex-direction:column}.btn{width:100%}.trust-grid{grid-template-columns:1fr}.trust-item{border-right:0;border-bottom:1px solid var(--line)}.service{grid-template-columns:1fr;gap:10px}.service>p{grid-column:auto}.section{padding:68px 0}.section h2{font-size:41px}.article-hero h1{font-size:43px}.article-wrap{padding-top:38px}.article h2{font-size:34px}.kb{grid-template-columns:1fr}}