*{box-sizing:border-box} :root{--wine:#702f43;--sage:#8ca98c;--ink:#343b35;--paper:#faf8f2;--line:#d9ded3} html{scroll-behavior:smooth}body{margin:0;background:var(--paper);background-image:linear-gradient(90deg,#dce6d6 0%,#e9eedf 16%,#f5f5eb 32%,var(--paper) 45%,var(--paper) 55%,#f5f5eb 68%,#e9eedf 84%,#dce6d6 100%);color:var(--ink);font-family:Arial,Helvetica,sans-serif}a{color:inherit}a:focus-visible{outline:3px solid var(--sage);outline-offset:7px}.skip{position:absolute;left:16px;top:-60px}.skip:focus{top:16px}.site-header{max-width:1120px;margin:auto;padding:28px 32px;display:flex;justify-content:space-between;align-items:center;font-size:12px;letter-spacing:.1em}.site-header a{text-decoration:none}.small-brand{color:var(--wine);font-weight:700}.about-link{color:#536650}.hero{max-width:1120px;margin:auto;padding:40px 32px 90px;text-align:center}.logo-window{position:relative;width:min(410px,85vw);aspect-ratio:600/430;overflow:hidden;margin:0 auto;mix-blend-mode:multiply}.logo-window img{position:absolute;width:341.333333%;max-width:none;left:-231.666667%;top:-27.906977%;height:auto}.tagline{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:#62755d;margin:32px 0 0}.service-links{display:grid;grid-template-columns:repeat(3,1fr);gap:38px;margin-top:76px;text-align:left}.service-links a{border-top:1px solid var(--sage);padding:22px 0 18px;text-decoration:none;display:flex;justify-content:space-between;gap:18px;align-items:center;color:var(--wine);font-family:Georgia,serif;font-size:25px;line-height:1.2;transition:color .2s,transform .2s}.service-links a:hover{color:#456b50;transform:translateY(-3px)}.arrow{font-family:Arial,sans-serif;font-size:23px;color:#758e71}.about{max-width:1056px;margin:0 auto 100px;border-top:1px solid var(--line);padding-top:65px;display:grid;grid-template-columns:1fr 1.15fr;gap:90px;align-items:center}.about-photo{aspect-ratio:4/5;width:100%;height:auto;object-fit:cover;object-position:center;display:block;border:1px solid #d7dfd1}.eyebrow{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:#63765c}.about h1,.simple h1{font-family:Georgia,serif;font-weight:400;color:var(--wine);font-size:48px;line-height:1.1;margin:18px 0 26px}.about p{font-size:16px;line-height:1.85;max-width:460px}.signature{font-family:Georgia,serif;color:var(--wine);font-style:italic;font-size:22px!important;margin-top:24px}.site-footer{border-top:1px solid var(--line);max-width:1120px;margin:auto;padding:28px 32px;display:flex;justify-content:space-between;gap:20px;color:#66715f;font-size:12px}.simple{max-width:1056px;margin:auto;min-height:70vh;padding:90px 32px}.simple h1{font-size:clamp(40px,7vw,76px);max-width:850px}.simple p{font-size:17px;line-height:1.8;max-width:550px}.back{display:inline-block;margin-top:40px;color:var(--wine);text-underline-offset:6px}@media(max-width:760px){.site-header{padding:24px}.hero{padding:30px 24px 60px}.service-links{grid-template-columns:1fr;gap:0;margin-top:50px}.service-links a{font-size:25px;padding:24px 0}.about{margin:0 24px 60px;padding-top:40px;grid-template-columns:1fr;gap:32px}.about-photo{max-width:420px;width:100%;margin:auto}.about h1{font-size:40px}.site-footer{padding:24px;flex-wrap:wrap}.simple{padding:65px 24px}.tagline{font-size:10px;letter-spacing:.12em}}
/* Homepage: four equilateral triangles, including the central portrait. */
.tandem-home{background-image:linear-gradient(90deg,#b7cbb0 0%,#dce6d5 21%,#f1f2e7 35%,#faf7f0 46%,#faf7f0 54%,#f1f2e7 65%,#dce6d5 79%,#b7cbb0 100%)}
.tandem-home .hero{padding:24px 24px 60px}
.tandem-home .logo-window{width:min(470px,90%)}
.tandem-home .tagline{max-width:650px;margin:25px auto 0;font:400 clamp(17px,2.2vw,23px)/1.6 Georgia,serif;letter-spacing:0;text-transform:none;color:#536650}
.tandem-home .tagline span{display:inline}
 .triangle-services{position:relative;max-width:860px;width:100%;aspect-ratio:2/1.732050808;margin:42px auto 0;container-type:inline-size}
.service-triangle{position:absolute;display:block;width:47%;height:47%;clip-path:polygon(50% 0,100% 100%,0 100%);text-decoration:none;isolation:isolate;transform-origin:50% 66.6667%;transition:transform .3s ease;}
.service-triangle::before{content:"";position:absolute;inset:0;background:var(--tile);transition:opacity .25s ease}
.service-triangle span{position:absolute;top:66.6667%;left:50%;transform:translate(-50%,-50%);width:80%;text-align:center;font-family:Georgia,"Times New Roman",serif;font-weight:700;font-size:clamp(12px,3.4cqw,29px);line-height:1.08;pointer-events:none}
.service-teaching{top:0;left:26.5%;--tile:#b7cbb0;color:#273c2b}
.service-consulting{bottom:0;left:0;--tile:#702f43;color:#faf7f0}
.service-marketing{bottom:0;right:0;--tile:#dfcbb5;color:#582337}
.triangle-facets{position:absolute;inset:0;width:100%;height:100%;fill:var(--tile);opacity:0;transition:opacity .25s ease;pointer-events:none}
.triangle-facets polygon{stroke:#fff2cb;stroke-width:.11;stroke-linejoin:round;filter:drop-shadow(0 0 .35px #fff0bd)}
.triangle-portrait{position:absolute;left:26.5%;top:51%;width:47%;height:47%;clip-path:polygon(0 0,100% 0,50% 100%)}
.triangle-portrait img{display:block;width:100%;height:100%;object-fit:cover;object-position:50% 60%}
@media(hover:hover) and (pointer:fine){.service-triangle:hover{transform:scale(1.025)}.service-triangle:hover::before{opacity:0}.service-triangle:hover .triangle-facets{opacity:1}}
.service-triangle:focus-visible{outline:0;transform:scale(1.025)}
.service-triangle:focus-visible::before{opacity:0}
.service-triangle:focus-visible .triangle-facets{opacity:1}
.service-triangle:focus-visible span{text-decoration:underline;text-underline-offset:4px}
.tandem-home .about{display:flex;flex-direction:column;align-items:center;gap:0;max-width:720px;margin:0 auto 75px;padding:0 24px;border:0;text-align:center;scroll-margin-top:24px}
.tandem-home .about-photo{width:min(320px,80%);max-width:320px;aspect-ratio:4/5;margin:0 auto 34px;border-radius:5px;box-shadow:0 8px 25px #34432c12}
.tandem-home .about-copy{width:100%}
.tandem-home .about h1{font-size:clamp(32px,5vw,44px);margin:0 0 24px}
.tandem-home .about p{max-width:650px;margin:0 auto 20px;font-size:16px;line-height:1.85}
.tandem-home .about .signature{margin-top:28px}
@media(max-width:500px){.tandem-home .hero{padding:16px 18px 40px}.tandem-home .tagline{max-width:320px}.tandem-home .tagline span{display:block}.triangle-services{margin-top:30px}.tandem-home .about{padding:0 24px;margin-bottom:50px}.tandem-home .about-photo{width:240px;max-width:80%;margin-bottom:28px}.tandem-home .about p{font-size:15px}}
@media(prefers-reduced-motion:reduce){.service-triangle,.service-triangle::before,.triangle-facets{transition:none}.service-triangle:hover,.service-triangle:focus-visible{transform:none}}

/* Central portrait: 48 transparent seams; portable SVG, no external service. */
.triangle-portrait{transform-origin:50% 33.333333%;transition:transform .3s ease;isolation:isolate}
.portrait-art{display:block;width:100%;height:100%;pointer-events:none}
.portrait-solid,.portrait-split{transition:opacity .25s ease}
.portrait-split{opacity:0}
@media(hover:hover) and (pointer:fine){.triangle-portrait:hover{transform:scale(1.255319149)}.triangle-portrait:hover .portrait-solid{opacity:0}.triangle-portrait:hover .portrait-split{opacity:1}}
.triangle-portrait:focus-visible{transform:scale(1.255319149);outline:0;filter:brightness(1.08)}
.triangle-portrait:focus-visible .portrait-solid{opacity:0}
.triangle-portrait:focus-visible .portrait-split{opacity:1}
@media(prefers-reduced-motion:reduce){.triangle-portrait,.portrait-solid,.portrait-split{transition:none}}

/* Sixteen equilateral cells, each split at its centroid into three congruent pieces. */
.portrait-crack-glow{fill:none;stroke:#fff2cb;stroke-width:.11;stroke-linejoin:round;filter:drop-shadow(0 0 .35px #fff0bd);opacity:0;transition:opacity .25s ease}
@media(hover:hover) and (pointer:fine){.triangle-portrait:hover .portrait-crack-glow{opacity:1}}
.triangle-portrait:focus-visible .portrait-crack-glow{opacity:1}
@media(prefers-reduced-motion:reduce){.portrait-crack-glow{transition:none}}