/* ---------- Reset / base ---------- */
*{box-sizing:border-box;}
body{margin:0;-webkit-font-smoothing:antialiased;font-family:'Geist',system-ui,sans-serif;background:oklch(0.995 0 0);color:oklch(0.16 0.01 260);overflow-x:hidden;}
html{scroll-behavior:smooth;}
img{max-width:100%;display:block;}
a{color:oklch(0.55 0.09 250);}
a:hover{color:oklch(0.46 0.1 250);}
h1,h2,p{margin:0;}

@keyframes kenBurns{0%{transform:scale(1) translate(0,0);}50%{transform:scale(1.045) translate(-1.2%,-0.8%);}100%{transform:scale(1.08) translate(1%,0.6%);}}

/* ---------- Nav ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:20px 56px;background:oklch(0.13 0.01 260 / 0.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,0.08);transition:background 0.3s ease,border-color 0.3s ease;}
.site-header.transparent{background:oklch(0.13 0.01 260 / 0.5);border-bottom-color:transparent;}
.site-header.transparent.nav-solid{background:oklch(0.13 0.01 260 / 0.94);border-bottom-color:rgba(255,255,255,0.08);}
.site-header .brand{font-weight:700;font-size:17px;color:#fff;letter-spacing:-0.2px;text-decoration:none;}
.nav-links{display:flex;align-items:center;gap:36px;}
.nav-links a{font-size:14px;color:rgba(255,255,255,0.75);text-decoration:none;padding-bottom:3px;background-image:linear-gradient(currentColor,currentColor);background-repeat:no-repeat;background-position:left bottom;background-size:0% 1.5px;transition:background-size 0.25s ease,color .2s ease;}
.nav-links a:hover,.nav-links a.is-current{color:#fff;}
.nav-links a:hover{background-size:100% 1.5px;}
.nav-links a.is-active{background-size:100% 1.5px;color:#fff;}
.nav-cta{font-size:14px;font-weight:600;color:oklch(0.13 0.01 260);background:#fff;padding:11px 22px;border-radius:8px;text-decoration:none;transition:transform 0.15s ease,background 0.2s ease;}
.nav-cta:hover{background:oklch(0.9 0 0);color:oklch(0.13 0.01 260);}
.nav-cta:active{transform:scale(0.96);}

/* ---------- Buttons ---------- */
.btn{display:inline-block;font-size:15px;font-weight:600;padding:15px 28px;border-radius:8px;text-decoration:none;border:none;cursor:pointer;transition:transform 0.15s ease,background 0.2s ease,border-color .2s ease;font-family:inherit;}
.btn:active{transform:scale(0.96);}
.btn-white{color:oklch(0.13 0.01 260);background:#fff;}
.btn-white:hover{background:oklch(0.88 0 0);color:oklch(0.13 0.01 260);}
.btn-outline{color:#fff;border:1px solid rgba(255,255,255,0.3);}
.btn-outline:hover{border-color:rgba(255,255,255,0.6);}
.btn-dark{color:#fff;background:oklch(0.13 0.01 260);}
.btn-dark:hover{background:oklch(0.24 0.01 260);color:#fff;}
.btn-line{color:oklch(0.13 0.01 260);border:1px solid oklch(0.16 0.01 260 / 0.2);background:transparent;}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;overflow:hidden;}
.hero-bg-wrap{position:absolute;inset:-40px;transform:scale(1.05);will-change:transform;}
.hero-bg-anim{position:absolute;inset:0;animation:kenBurns 48s ease-in-out infinite alternate;}
.hero-bg-anim img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
/* Glowing dots traveling along fiber-like curves, each with a fading
   comet-tail (see the animateMotion dots in front-page.php). Continuous
   motion (not scroll-gated) so the hero reads as "alive" fiber traffic,
   like the original design brief's system-visualization intent. */
.hero-particles{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;mix-blend-mode:screen;}
.hero-scrim{position:absolute;inset:0;background:linear-gradient(180deg,oklch(0.1 0.01 260 / 0.88) 0%,oklch(0.1 0.01 260 / 0.72) 55%,oklch(0.1 0.01 260 / 0.94) 100%);pointer-events:none;opacity:0.85;}
.hero-content{position:relative;max-width:880px;margin:0 auto;padding:220px 24px 120px;text-align:center;}
.hero-content h1{font-weight:800;font-size:56px;line-height:1.14;letter-spacing:-1.5px;color:#fff;margin:0 0 30px;opacity:0;transform:translateY(18px);transition:opacity .8s ease,transform .8s ease;}
.hero-content .sub{font-size:18px;line-height:1.6;color:rgba(255,255,255,0.7);max-width:600px;margin:0 auto 42px;opacity:0;transform:translateY(18px);transition:opacity .8s ease,transform .8s ease;}
.hero-content .buttons{display:flex;gap:16px;justify-content:center;opacity:0;transform:translateY(18px);transition:opacity .8s ease,transform .8s ease;}
.hero.stage-1 h1{opacity:1;transform:translateY(0);}
.hero.stage-2 .sub{opacity:1;transform:translateY(0);}
.hero.stage-3 .buttons{opacity:1;transform:translateY(0);}

/* ---------- Page header (inner pages) ---------- */
.page-header{background:oklch(0.13 0.01 260);padding:200px 56px 90px;}
.page-header .inner{max-width:1180px;margin:0 auto;}
.eyebrow{font-size:12.5px;letter-spacing:1.5px;color:oklch(0.6 0.08 250);font-weight:700;margin-bottom:22px;}
.eyebrow.light{color:oklch(0.55 0.09 250);}
.page-header h1{font-weight:800;font-size:46px;line-height:1.15;letter-spacing:-1px;color:#fff;margin:0 0 20px;max-width:700px;}
.page-header p{font-size:17px;line-height:1.6;color:rgba(255,255,255,0.65);max-width:560px;}

/* ---------- Reveal animation ---------- */
.reveal-group .reveal-item{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease;}
.reveal-group.is-revealed .reveal-item{opacity:1;transform:translateY(0);}
.reveal-group .reveal-item.pop{transform:scale(0.94);}
.reveal-group.is-revealed .reveal-item.pop{transform:scale(1);}
.reveal-group .reveal-item.check{transform:scale(0.3);transition:opacity .4s ease,transform .45s cubic-bezier(0.34,1.56,0.64,1);}
.reveal-group.is-revealed .reveal-item.check{transform:scale(1);}

/* ---------- Sections ---------- */
section{padding:120px 56px;}
.container{max-width:1180px;margin:0 auto;}

/* Problem */
.problem{padding:130px 56px;display:grid;grid-template-columns:1fr 0.9fr;gap:80px;align-items:center;max-width:1180px;margin:0 auto;}
.problem h2{font-weight:800;font-size:38px;line-height:1.22;letter-spacing:-0.8px;margin:0 0 26px;}
.problem p{font-size:16.5px;line-height:1.7;color:oklch(0.4 0.01 260);max-width:460px;}
.problem-img{width:100%;height:420px;border-radius:8px;background:oklch(0.95 0.005 250);display:flex;align-items:center;justify-content:center;color:oklch(0.55 0.01 260);font-size:13px;text-align:center;padding:20px;border:1px dashed oklch(0.16 0.01 260/0.15);}

/* Services (home rows) */
.services-section{background:oklch(0.97 0.005 250);}
.services-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:56px;gap:24px;flex-wrap:wrap;}
.services-head h2{font-weight:800;font-size:34px;letter-spacing:-0.7px;max-width:480px;}
.services-head p{font-size:15px;color:oklch(0.45 0.01 260);max-width:340px;}
.service-row{display:grid;grid-template-columns:60px 1fr auto;gap:28px;align-items:center;padding:32px 0;border-top:1px solid oklch(0.16 0.01 260 / 0.1);transition:background .2s ease;text-decoration:none;color:inherit;}
.service-row:hover{background:oklch(0.16 0.01 260 / 0.035);}
.service-row .num{font-size:14px;font-weight:600;color:oklch(0.55 0.09 250);}
.service-row .title{font-size:19px;font-weight:700;margin-bottom:6px;}
.service-row .desc{font-size:14.5px;color:oklch(0.45 0.01 260);line-height:1.55;max-width:560px;}
.service-row .arrow{font-size:20px;color:oklch(0.16 0.01 260 / 0.3);transition:transform .25s ease;}
.service-row:hover .arrow{transform:translateX(6px);}

/* Approach */
.approach-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:36px;}
.approach-grid .num{font-size:34px;font-weight:800;color:oklch(0.16 0.01 260 / 0.15);margin-bottom:16px;}
.approach-grid .title{font-size:17px;font-weight:700;margin-bottom:10px;}
.approach-grid .desc{font-size:14px;color:oklch(0.45 0.01 260);line-height:1.55;}
.section-head h2{font-weight:800;font-size:34px;letter-spacing:-0.7px;margin:0 0 56px;max-width:560px;}

/* Personas */
.personas-section{background:oklch(0.13 0.01 260);}
.personas-section .section-head h2{color:#fff;}
.personas-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.persona-img{width:100%;height:200px;margin-bottom:22px;border-radius:8px;overflow:hidden;background:rgba(255,255,255,0.06);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,0.4);font-size:12.5px;text-align:center;padding:16px;border:1px dashed rgba(255,255,255,0.15);transition:transform .4s ease;}
.persona-img:hover{transform:scale(1.06);}
.persona-title{font-size:18px;font-weight:700;color:#fff;margin-bottom:12px;}
.persona-desc{display:flex;gap:10px;}
.persona-desc .check{color:oklch(0.6 0.08 250);flex:none;}
.persona-desc span.text{font-size:14px;color:rgba(255,255,255,0.62);line-height:1.55;}

/* Sprint */
.sprint-section{background:oklch(0.97 0.005 250);}
.sprint-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;}
.sprint-grid h2{font-weight:800;font-size:32px;letter-spacing:-0.7px;margin:0 0 22px;}
.sprint-grid > .text p{font-size:16px;line-height:1.65;color:oklch(0.4 0.01 260);max-width:440px;margin:0 0 32px;}
.sprint-item{display:flex;gap:16px;align-items:flex-start;padding:20px 0;border-top:1px solid oklch(0.16 0.01 260 / 0.1);}
.sprint-item .check{color:oklch(0.55 0.09 250);flex:none;font-weight:700;}
.sprint-item .title{font-size:15px;font-weight:700;margin-bottom:4px;}
.sprint-item .desc{font-size:13.5px;color:oklch(0.45 0.01 260);line-height:1.5;}

/* Closing CTA */
.closing-cta{background:oklch(0.13 0.01 260);padding:130px 56px;text-align:center;}
.closing-cta .inner{max-width:640px;margin:0 auto;}
.closing-cta h2{font-weight:800;font-size:38px;letter-spacing:-0.8px;color:#fff;margin:0 0 20px;}
.closing-cta p{font-size:16.5px;color:rgba(255,255,255,0.62);line-height:1.6;margin:0 0 36px;}

/* About-specific */
.thesis{padding:120px 56px;}
.thesis .inner{max-width:720px;margin:0 auto;text-align:center;}
.thesis h2{font-weight:800;font-size:32px;line-height:1.25;letter-spacing:-0.6px;margin:0 0 24px;}
.thesis p{font-size:16.5px;line-height:1.75;color:oklch(0.4 0.01 260);}
.values-section{background:oklch(0.97 0.005 250);}
.values-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;}
.values-grid .num{font-size:34px;font-weight:800;color:oklch(0.16 0.01 260 / 0.15);margin-bottom:16px;}
.values-grid .title{font-size:18px;font-weight:700;margin-bottom:10px;}
.values-grid .desc{font-size:14.5px;color:oklch(0.45 0.01 260);line-height:1.6;}

/* Services page rows */
.services-detail{background:oklch(0.995 0 0);padding:40px 56px 120px;}
.service-detail-row{display:grid;grid-template-columns:80px 1fr 1fr;gap:48px;padding:56px 0;border-top:1px solid oklch(0.16 0.01 260 / 0.1);}
.service-detail-row .num{font-size:16px;font-weight:700;color:oklch(0.55 0.09 250);}
.service-detail-row .title{font-size:24px;font-weight:800;letter-spacing:-0.4px;margin-bottom:14px;}
.service-detail-row .desc{font-size:15.5px;color:oklch(0.4 0.01 260);line-height:1.65;max-width:420px;}
.caps{display:flex;flex-direction:column;gap:14px;}
.caps .cap{display:flex;gap:12px;align-items:flex-start;}
.caps .cap span.arrow{color:oklch(0.55 0.09 250);flex:none;}
.caps .cap span.text{font-size:14.5px;color:oklch(0.3 0.01 260);line-height:1.5;}
.simple-cta{background:oklch(0.97 0.005 250);padding:100px 56px;text-align:center;}
.simple-cta .inner{max-width:560px;margin:0 auto;}
.simple-cta h2{font-weight:800;font-size:28px;letter-spacing:-0.6px;margin:0 0 16px;}
.simple-cta p{font-size:15.5px;color:oklch(0.45 0.01 260);line-height:1.6;margin:0 0 32px;}
.simple-cta .buttons{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* Contact page */
.contact-section{background:oklch(0.995 0 0);padding:100px 56px 130px;}
.contact-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1fr 0.8fr;gap:80px;}
.contact-form{display:flex;flex-direction:column;gap:16px;max-width:480px;}
.contact-form input,.contact-form textarea{font-size:15px;padding:14px 16px;border-radius:8px;border:1px solid oklch(0.16 0.01 260 / 0.15);font-family:inherit;color:inherit;}
.contact-form textarea{resize:vertical;}
.contact-form button{font-size:15px;font-weight:600;color:#fff;background:oklch(0.13 0.01 260);padding:15px 28px;border-radius:8px;border:none;cursor:pointer;transition:background .2s ease;}
.contact-form button:hover{background:oklch(0.24 0.01 260);}
.contact-thanks{padding:36px;background:oklch(0.97 0.005 250);border-radius:12px;max-width:480px;}
.contact-thanks .title{font-size:20px;font-weight:700;margin-bottom:10px;}
.contact-thanks .sub{font-size:15px;color:oklch(0.45 0.01 260);line-height:1.6;}
.steps-list .step{display:flex;gap:16px;align-items:flex-start;padding:20px 0;border-top:1px solid oklch(0.16 0.01 260 / 0.1);}
.steps-list .step:last-child{border-bottom:1px solid oklch(0.16 0.01 260 / 0.1);}
.steps-list .step .num{font-size:20px;font-weight:800;color:oklch(0.16 0.01 260 / 0.2);flex:none;}
.steps-list .step .title{font-size:15px;font-weight:700;margin-bottom:4px;}
.steps-list .step .desc{font-size:13.5px;color:oklch(0.45 0.01 260);line-height:1.5;}
.email-line{margin-top:28px;font-size:14px;color:oklch(0.45 0.01 260);}

/* ---------- Footer ---------- */
.site-footer{background:oklch(0.995 0 0);border-top:1px solid oklch(0.16 0.01 260 / 0.1);padding:36px 56px;}
.site-footer .inner{max-width:1180px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;}
.site-footer .wordmark{font-weight:700;font-size:15px;}
.footer-links{display:flex;gap:26px;flex-wrap:wrap;}
.footer-links a{font-size:13px;color:oklch(0.16 0.01 260);text-decoration:none;padding-bottom:3px;background-image:linear-gradient(currentColor,currentColor);background-repeat:no-repeat;background-position:left bottom;background-size:0% 1px;transition:background-size .25s ease;}
.footer-links a:hover{background-size:100% 1px;}
.copyright{font-size:12.5px;color:oklch(0.5 0.01 260);}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .site-header{padding:16px 24px;}
  .nav-links{display:none;}
  .hero-content h1{font-size:36px;letter-spacing:-1px;}
  .hero-content .sub{font-size:16px;}
  .hero-content{padding:160px 20px 90px;}
  section,.problem,.page-header,.closing-cta,.thesis,.simple-cta,.contact-section{padding-left:24px;padding-right:24px;}
  .problem{grid-template-columns:1fr;gap:40px;}
  .approach-grid,.personas-grid,.values-grid{grid-template-columns:1fr;gap:32px;}
  .sprint-grid{grid-template-columns:1fr;gap:40px;}
  .service-row{grid-template-columns:40px 1fr;}
  .service-row .arrow{display:none;}
  .service-detail-row{grid-template-columns:1fr;gap:20px;}
  .contact-grid{grid-template-columns:1fr;gap:56px;}
  .page-header h1{font-size:32px;}
  .services-head{flex-direction:column;align-items:flex-start;}
}