:root {
  --ink: #1d1d1b;
  --charcoal: #292824;
  --charcoal-2: #35332e;
  --ivory: #f5f1e9;
  --paper: #fbf8f2;
  --stone: #ded7cc;
  --stone-dark: #b9b0a3;
  --bronze: #a47b4f;
  --bronze-deep: #80603f;
  --muted: #6d685f;
  --white: #fffdf9;
  --line: rgba(41, 40, 36, .18);
  --dark-line: rgba(245, 241, 233, .18);
  --shadow: 0 28px 70px rgba(29, 29, 27, .10);
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--ivory); font-family: "DM Sans", sans-serif; font-size: 16px; line-height: 1.65; }
button, a { font: inherit; }
button { color: inherit; }
a { color: inherit; }
h1, h2, h3 { font-family: "Source Serif 4", Georgia, serif; font-weight: 500; letter-spacing: -.035em; line-height: 1.04; }
.eyebrow { margin: 0 0 16px; color: var(--bronze-deep); font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.section-heading { max-width: 790px; margin-bottom: 50px; }
.section-heading.centered { margin-left: auto; margin-right: auto; text-align: center; }
.section-heading h2, .engagement h2, .founder h2 { margin: 0 0 20px; font-size: clamp(38px, 4.4vw, 62px); }
.section-heading > p:last-child { margin: 0; color: var(--muted); font-size: 18px; }
.inverse .eyebrow { color: #c9a579; }

.site-header { position: absolute; z-index: 5; inset: 0 0 auto; max-width: 1320px; margin: auto; padding: 30px 44px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ivory); text-decoration: none; font-weight: 600; letter-spacing: .01em; }
.brand-mark { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid rgba(196, 154, 106, .7); color: #c9a579; font-size: 12px; letter-spacing: .1em; }
nav { display: flex; gap: 30px; }
nav a { color: rgba(245, 241, 233, .7); font-size: 14px; text-decoration: none; }
nav a:hover, nav a:focus-visible { color: var(--ivory); }
.nav-toggle { display: none; }

.hero { min-height: 780px; padding: 160px max(6vw, 42px) 100px; background: radial-gradient(circle at 74% 32%, rgba(164,123,79,.15), transparent 28%), linear-gradient(135deg, #191917 0%, #292824 74%, #34312b 100%); color: var(--ivory); display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(400px, .92fr); align-items: center; gap: 6vw; overflow: hidden; }
.hero-copy { max-width: 730px; justify-self: end; }
.hero .eyebrow { color: #c9a579; }
h1 { max-width: 720px; margin: 0; font-size: clamp(58px, 6.8vw, 100px); }
h1 span { color: #c9a579; }
.hero-intro { max-width: 700px; margin: 32px 0; color: #d7d0c5; font-size: 19px; line-height: 1.72; }
.primary-button { display: inline-flex; gap: 32px; align-items: center; padding: 15px 20px 15px 24px; border: 1px solid rgba(245,241,233,.33); color: var(--ivory); text-decoration: none; font-weight: 600; transition: .25s ease; }
.primary-button span { color: #c9a579; font-size: 20px; }
.primary-button:hover, .primary-button:focus-visible { background: var(--ivory); color: var(--ink); transform: translateY(-2px); }
.hero-model { position: relative; width: min(470px, 39vw); aspect-ratio: 1; justify-self: start; }
.orbit { position: absolute; border: 1px solid rgba(222,215,204,.22); border-radius: 50%; display: flex; justify-content: center; }
.orbit span { position: absolute; top: -14px; padding: 2px 12px; color: #beb5a8; background: var(--charcoal); font-size: 12px; letter-spacing: .13em; text-transform: uppercase; }
.orbit-outer { inset: 0; animation: breathe 8s ease-in-out infinite; }
.orbit-mid { inset: 13%; }
.orbit-inner { inset: 26%; }
.model-core { position: absolute; inset: 38%; border: 1px solid #c9a579; border-radius: 50%; background: #a47b4f; color: #171614; display: grid; place-content: center; text-align: center; box-shadow: 0 0 70px rgba(164,123,79,.18); }
.model-core small { font-size: 10px; text-transform: uppercase; letter-spacing: .12em; }
.model-core strong { font-family: "Source Serif 4", Georgia, serif; font-size: 20px; }
.model-note { position: absolute; right: -30px; bottom: 13%; padding-left: 18px; border-left: 2px solid var(--bronze); color: #ddd6cb; font-size: 14px; line-height: 1.45; }
@keyframes breathe { 50% { transform: scale(1.025); border-color: rgba(201,165,121,.55); } }

.perspective { max-width: 1390px; margin: auto; padding: 112px max(6vw, 42px); }
.lens-switch { max-width: 1080px; margin: 0 auto 76px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.lens { min-height: 172px; padding: 30px; border: 1px solid var(--line); background: transparent; display: grid; grid-template-columns: 38px 1fr; gap: 20px; text-align: left; cursor: pointer; transition: .25s ease; }
.lens:hover { background: rgba(255,253,249,.6); transform: translateY(-2px); }
.lens.active { border-color: var(--bronze); background: var(--white); box-shadow: var(--shadow); }
.lens-number { color: #9b9489; font-size: 12px; font-weight: 700; letter-spacing: .12em; }
.lens strong { display: block; margin-bottom: 9px; font-family: "Source Serif 4", Georgia, serif; font-size: 28px; font-weight: 600; }
.lens small { display: block; color: var(--muted); font-size: 15px; line-height: 1.55; }
.lens.active .lens-number, .lens.active strong { color: var(--bronze-deep); }
.clue-principle { max-width: 1080px; margin: -46px auto 62px; padding-left: 18px; border-left: 2px solid var(--bronze); display: flex; gap: 10px 24px; align-items: baseline; flex-wrap: wrap; }
.clue-principle strong { font-family: "Source Serif 4", Georgia, serif; font-size: 18px; }
.clue-principle span { color: var(--muted); font-size: 14px; }
.diagnostic-intro { margin: 0 0 34px; }
.diagnostic-intro h3 { max-width: 760px; margin: 0 0 12px; font-size: clamp(32px, 3.2vw, 47px); }
.diagnostic-intro > p:last-child { max-width: 760px; margin: 0; color: var(--muted); font-size: 17px; }
.explorer-grid { display: grid; grid-template-columns: minmax(350px, .86fr) minmax(480px, 1.14fr); gap: 28px; align-items: start; }
.symptoms { display: grid; gap: 8px; }
.symptom { width: 100%; border: 0; border-left: 3px solid transparent; padding: 19px 22px; background: transparent; color: #45423c; display: flex; gap: 18px; text-align: left; cursor: pointer; transition: .2s ease; text-transform: uppercase; font-size: 14px; line-height: 1.55; letter-spacing: .025em; }
.symptom span { flex: 0 0 auto; color: #7d766c; font-size: 12px; letter-spacing: .1em; }
.symptom:hover { background: rgba(255,253,249,.7); color: var(--ink); }
.symptom.active { border-left-color: var(--bronze); background: var(--white); color: var(--ink); font-weight: 700; box-shadow: 0 10px 30px rgba(29,29,27,.06); }
.nav-toggle:focus-visible, .lens:focus-visible, .symptom:focus-visible, .pillar-tab:focus-visible, summary:focus-visible, .conversation-button:focus-visible, .form-submit:focus-visible { outline: 3px solid #c9a579; outline-offset: 3px; }
.insight-card { min-height: 500px; padding: clamp(34px, 4.5vw, 58px); background: var(--white); border-top: 4px solid var(--bronze); box-shadow: var(--shadow); }
.insight-topline { display: flex; justify-content: space-between; gap: 20px; color: var(--bronze-deep); font-size: 12px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.pulse { color: #6f5940; }
.pulse::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: var(--bronze); }
.insight-card h3 { max-width: 640px; margin: 34px 0 20px; font-size: clamp(31px, 3.2vw, 46px); }
.insight-copy p { margin: 0 0 18px; color: var(--muted); font-size: 17px; }
.insight-details { margin-top: 30px; border-top: 1px solid var(--line); }
.insight-details summary { padding: 20px 0 4px; color: var(--bronze-deep); display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; list-style: none; font-size: 13px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
.insight-details summary::-webkit-details-marker { display: none; }
.insight-details summary b { font-size: 22px; font-weight: 400; transition: transform .2s ease; }
.insight-details[open] summary b { transform: rotate(45deg); }
.insight-details > div { padding: 18px 0 4px; }
.insight-details p { margin: 0 0 18px; color: #4f4b44; font-size: 16px; }
.insight-details .insight-closing { padding-left: 18px; border-left: 2px solid var(--bronze); color: var(--ink); font-weight: 600; }

.problem-location { padding: 0 max(6vw, 42px) 112px; }
.problem-location-inner { max-width: 1200px; margin: 0 auto; padding-top: 54px; border-top: 1px solid var(--line); display: grid; grid-template-columns: .9fr 1.1fr; gap: 7vw; align-items: start; }
.problem-location-heading h2 { margin: 0; font-size: clamp(36px, 3.8vw, 54px); }
.problem-location-copy > p { margin: 0; color: var(--muted); font-size: 17px; }
.problem-location-copy .problem-location-principle { margin-top: 28px; padding-left: 22px; border-left: 2px solid var(--bronze); color: var(--ink); font-weight: 600; }

.convergence { padding: 112px max(6vw, 42px); background: var(--charcoal); color: var(--ivory); }
.convergence > * { max-width: 1200px; margin-left: auto; margin-right: auto; }
.convergence .section-heading { margin-bottom: 56px; }
.convergence .section-heading h2 { font-size: clamp(36px, 4vw, 56px); }
.convergence-map { position: relative; display: grid; grid-template-columns: 1fr 194px 1fr; align-items: center; gap: 24px; }
.convergence-map::before { content: ""; position: absolute; top: 50%; left: 21%; right: 21%; height: 1px; background: rgba(201,165,121,.5); }
.side-card { position: relative; z-index: 1; min-height: 195px; padding: 34px; border: 1px solid var(--dark-line); background: #32302b; display: flex; flex-direction: column; justify-content: space-between; }
.side-card span { color: #c9a579; font-size: 12px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.side-card strong { max-width: 370px; font-family: "Source Serif 4", Georgia, serif; font-size: 23px; font-weight: 500; line-height: 1.35; }
.meeting-point { position: relative; z-index: 2; aspect-ratio: 1; border: 1px solid #c9a579; border-radius: 50%; background: var(--charcoal); display: grid; place-content: center; text-align: center; box-shadow: 0 0 0 14px var(--charcoal); }
.meeting-point small { margin-bottom: 5px; color: #aaa094; font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.meeting-point strong { color: #d4b58f; font-family: "Source Serif 4", Georgia, serif; font-size: 20px; font-weight: 500; line-height: 1.25; }
.convergence-question { max-width: 900px; margin-top: 66px; text-align: center; }
.convergence-question > p { margin: 0 0 34px; font-family: "Source Serif 4", Georgia, serif; font-size: clamp(29px, 3.3vw, 44px); line-height: 1.18; }
.convergence-close { max-width: 790px; margin: 0 auto; padding-top: 30px; border-top: 1px solid var(--dark-line); text-align: center; }
.convergence-close span { display: block; max-width: 720px; margin: 0 auto; color: #c7c0b6; font-size: 17px; }
.convergence-close strong { display: block; max-width: 760px; margin: 28px auto 0; color: #f0e9df; font-family: "Source Serif 4", Georgia, serif; font-size: clamp(21px, 2.1vw, 29px); font-weight: 500; line-height: 1.35; }
.journey-pair { margin-top: 76px; display: grid; gap: 12px; }
.journey-reveal { border: 1px solid var(--dark-line); background: #302f2b; }
.journey-reveal summary { min-height: 74px; padding: 20px 25px; display: flex; align-items: center; gap: 18px; cursor: pointer; list-style: none; font-family: "Source Serif 4", Georgia, serif; font-size: 22px; }
.journey-reveal summary::-webkit-details-marker { display: none; }
.journey-reveal summary span { color: #c9a579; font-family: "DM Sans", sans-serif; font-size: 11px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.journey-reveal summary b { margin-left: auto; color: #c9a579; font-size: 25px; font-weight: 400; transition: transform .2s ease; }
.journey-reveal[open] summary b { transform: rotate(45deg); }
.journey-content { padding: 12px 28px 42px; }
.journey-content > p:first-child { max-width: 760px; margin: 0 auto 30px; color: #c9c1b7; text-align: center; }
.journey-track { margin: 0; padding: 0; counter-reset: steps; list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid rgba(201,165,121,.45); }
.journey-track li { counter-increment: steps; min-height: 92px; padding: 18px 15px 8px 0; color: #ddd5cb; font-size: 13px; line-height: 1.4; }
.journey-track li::before { content: counter(steps, decimal-leading-zero); display: block; margin-bottom: 9px; color: #c9a579; font-size: 11px; font-weight: 700; letter-spacing: .1em; }
.journey-question { max-width: 820px; margin: 20px auto 0; color: #ede7de; text-align: center; font-family: "Source Serif 4", Georgia, serif; font-size: 21px; font-weight: 500; }
.buyer-track + .journey-question + blockquote { margin-top: 16px; padding-left: 0; border-left: 0; text-align: center; }
.learning-loop { margin: 20px 0 14px; padding: 19px; border: 1px solid rgba(201,165,121,.42); background: rgba(201,165,121,.045); display: flex; justify-content: center; align-items: center; gap: 13px; flex-wrap: wrap; color: #e3dcd2; font-size: 14px; }
.learning-loop i { color: #c9a579; font-style: normal; }
.feedback-label { margin: 14px 0 10px; color: #c9a579; text-align: center; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.feedback-list { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }
.feedback-list span { padding: 7px 10px; border: 1px solid var(--dark-line); color: #d9d2c8; font-size: 12px; }
.learning-principle { max-width: 780px; margin: 18px auto 0; color: #d8c1a5; text-align: center; font-weight: 600; }
blockquote { max-width: 860px; margin: 34px auto 0; padding-left: 22px; border-left: 2px solid var(--bronze); color: var(--ivory); font-family: "Source Serif 4", Georgia, serif; font-size: 23px; line-height: 1.45; }

.approach { padding: 112px max(7vw, 42px); background: #35332e; color: var(--ivory); }
.approach > * { max-width: 1200px; margin-left: auto; margin-right: auto; }
.pillar-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 5vw; }
.pillar-tabs { display: grid; align-self: start; border-top: 1px solid var(--dark-line); }
.pillar-tab { border: 0; border-bottom: 1px solid var(--dark-line); padding: 22px 10px; background: transparent; color: #b0a79b; display: flex; align-items: center; gap: 26px; cursor: pointer; text-align: left; }
.pillar-tab b { color: #82796e; font-size: 12px; letter-spacing: .12em; }
.pillar-tab span { font-family: "Source Serif 4", Georgia, serif; font-size: 24px; font-weight: 500; }
.pillar-tab.active, .pillar-tab.active b { color: #d3ad7e; }
.pillar-detail { min-height: 350px; padding: 50px; background: #292824; border-left: 3px solid var(--bronze); display: flex; flex-direction: column; justify-content: center; }
.pillar-detail h3 { margin: 0 0 22px; font-size: clamp(34px, 3.2vw, 48px); }
.pillar-detail #pillar-copy p { margin: 0 0 14px; color: #c9c1b7; font-size: 18px; }
.pillar-detail #pillar-copy p:last-child { margin-bottom: 0; }
.pillar-detail .pillar-principle { color: var(--ivory); font-weight: 600; }

.engagement { max-width: 1240px; margin: auto; padding: 112px 40px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 8vw; }
.engagement-intro { max-width: 480px; color: var(--muted); font-size: 17px; }
.engagement-steps { margin: 0; padding: 0; list-style: none; }
.engagement-steps li { display: grid; grid-template-columns: 44px 1fr; gap: 22px; padding: 27px 0; border-top: 1px solid var(--line); }
.engagement-steps li:last-child { border-bottom: 1px solid var(--line); }
.engagement-steps span { color: var(--bronze-deep); font-size: 12px; font-weight: 700; }
.engagement-steps strong { font-family: "Source Serif 4", Georgia, serif; font-size: 26px; font-weight: 600; }
.engagement-steps p { margin: 6px 0 0; color: var(--muted); }

.founder { padding: 112px max(7vw, 42px); background: #e5ddd2; display: grid; grid-template-columns: .56fr 1.44fr; gap: 6vw; }
.founder-identity { align-self: start; padding: 20px 0 0 20px; border-left: 2px solid var(--bronze); }
.founder-name { margin: 0; font-family: "Source Serif 4", Georgia, serif; font-size: 36px; font-weight: 600; letter-spacing: -.03em; }
.founder-identity > span { color: var(--muted); }
.founder-copy { max-width: 880px; }
.about-copy { max-width: 790px; }
.about-copy > p { color: #4f4a43; font-size: 18px; line-height: 1.72; }
.tss-meaning { margin-top: 26px; padding: 20px 0 0 20px; border-top: 1px solid rgba(41,40,36,.2); border-left: 2px solid var(--bronze); color: var(--ink) !important; font-family: "Source Serif 4", Georgia, serif; font-size: 21px !important; line-height: 1.5; }
.final-invitation { margin-top: 66px; padding-top: 58px; border-top: 1px solid rgba(41,40,36,.2); }
.founder-copy h2 { max-width: 820px; font-size: clamp(38px, 4.4vw, 62px); }
.closing-line { margin: 30px 0 24px; font-size: 18px; font-weight: 700; }
.conversation-button { border: 0; padding: 17px 23px; background: var(--ink); color: var(--ivory); font-weight: 700; cursor: pointer; }
.conversation-button span { margin-left: 30px; color: #c9a579; }
.enquiry-panel { margin-top: 34px; padding: 38px; border-top: 1px solid rgba(41,40,36,.24); background: rgba(255,253,249,.38); }
.enquiry-form { display: grid; grid-template-columns: 1fr 1fr; gap: 25px 28px; }
.honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-row { display: flex; flex-direction: column; }
.form-row-wide { grid-column: 1 / -1; }
.form-row label { margin-bottom: 8px; color: var(--ink); font-size: 14px; font-weight: 700; }
.form-row label span { color: var(--muted); font-weight: 400; }
.form-row input, .form-row textarea { width: 100%; border: 0; border-bottom: 1px solid rgba(41,40,36,.38); border-radius: 0; padding: 11px 2px; background: transparent; color: var(--ink); font-family: "DM Sans", sans-serif; font-size: 16px; line-height: 1.55; }
.form-row textarea { min-height: 145px; border: 1px solid rgba(41,40,36,.3); padding: 14px; resize: vertical; }
.form-row input:focus, .form-row textarea:focus { outline: 0; border-color: var(--bronze-deep); box-shadow: 0 2px 0 var(--bronze-deep); }
.form-row textarea:focus { box-shadow: inset 0 0 0 1px var(--bronze-deep); }
.field-support { max-width: 650px; margin: -2px 0 12px; color: var(--muted); font-size: 14px; }
.form-actions { padding-top: 8px; }
.form-submit { align-self: flex-start; border: 1px solid var(--ink); padding: 15px 22px; background: transparent; color: var(--ink); font-weight: 700; }
.form-submit:disabled { cursor: wait; opacity: .62; }
.form-actions > p { max-width: 690px; margin: 16px 0 0; color: var(--muted); font-size: 13px; }
.form-actions .form-status { color: #6e332d; font-size: 14px; font-weight: 600; }
.form-success { padding: 34px 0; border-top: 1px solid rgba(41,40,36,.2); }
.form-success strong { font-family: "Source Serif 4", Georgia, serif; font-size: 30px; font-weight: 500; }
.form-success p { margin: 6px 0 0; color: var(--muted); }
footer { padding: 30px max(5vw, 30px); background: #171715; color: #aaa197; display: flex; justify-content: space-between; gap: 20px; font-size: 13px; }
.footer-links { display: flex; gap: 12px; }
.footer-links a { color: #aaa197; text-decoration: none; }
.footer-links a:hover, .footer-links a:focus-visible { color: var(--ivory); }
.footer-links a[aria-current="page"] { color: var(--ivory); }
.footer-links i { color: #655f57; font-style: normal; }

.legal-page { background: var(--paper); }
.legal-hero { min-height: 420px; padding: 170px max(6vw, 42px) 76px; background: radial-gradient(circle at 78% 28%, rgba(164,123,79,.13), transparent 30%), linear-gradient(135deg, #191917 0%, #292824 74%, #34312b 100%); color: var(--ivory); display: flex; align-items: flex-end; }
.legal-hero > div { width: min(820px, 100%); margin: 0 auto; }
.legal-hero .eyebrow { color: #c9a579; }
.legal-hero h1 { margin: 0; font-size: clamp(58px, 7vw, 88px); }
.legal-updated { margin: 22px 0 0; color: #c9c1b5; font-size: 14px; }
.legal-content { width: min(820px, calc(100% - 84px)); margin: 0 auto; padding: 88px 0 112px; }
.legal-content p, .legal-content li { color: #4f4b45; font-size: 17px; line-height: 1.75; }
.legal-content p { margin: 0 0 22px; }
.legal-content .legal-lead { color: var(--ink); font-family: "Source Serif 4", Georgia, serif; font-size: 27px; line-height: 1.42; }
.legal-content h2 { margin: 58px 0 20px; color: var(--ink); font-size: 33px; line-height: 1.15; }
.legal-content ul { margin: 0 0 26px; padding-left: 24px; }
.legal-content li { padding-left: 5px; }
.legal-content a { color: var(--bronze-deep); text-decoration-color: rgba(128,96,63,.48); text-underline-offset: 3px; }
.legal-content a:hover, .legal-content a:focus-visible { color: var(--ink); text-decoration-color: var(--ink); }

@media (max-width: 900px) {
  .site-header { padding: 22px 24px; }
  .nav-toggle { width: 44px; height: 44px; border: 1px solid rgba(201,165,121,.52); background: rgba(41,40,36,.72); display: grid; place-content: center; gap: 7px; cursor: pointer; }
  .nav-toggle span { width: 19px; height: 1px; background: #c9a579; transition: transform .2s ease; }
  .site-header.nav-open .nav-toggle span:first-child { transform: translateY(4px) rotate(45deg); }
  .site-header.nav-open .nav-toggle span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .site-header nav { position: absolute; top: 82px; right: 24px; left: 24px; border: 1px solid rgba(201,165,121,.34); padding: 8px 20px; background: rgba(29,29,27,.98); box-shadow: 0 24px 52px rgba(0,0,0,.26); display: none; flex-direction: column; gap: 0; }
  .site-header.nav-open nav { display: flex; }
  .site-header nav a { min-height: 50px; border-bottom: 1px solid rgba(245,241,233,.12); display: flex; align-items: center; color: #d7d0c5; }
  .site-header nav a:last-child { border-bottom: 0; }
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 28px; padding: 132px 32px 80px; }
  .hero-copy { max-width: 720px; justify-self: auto; }
  .hero h1 { font-size: clamp(54px, 9.2vw, 76px); }
  .hero-model { width: min(420px, 72vw); justify-self: center; margin: 38px 0 0; }
  .perspective, .convergence, .approach, .engagement, .founder { padding: 82px 24px; }
  .explorer-grid, .pillar-layout, .engagement, .founder { grid-template-columns: 1fr; }
  .diagnostic-intro { margin-bottom: 30px; }
  .explorer-grid { gap: 32px; }
  .symptoms { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .symptom { min-height: 88px; }
  .insight-card { min-height: 0; }
  .symptoms > .insight-card { grid-column: 1 / -1; width: 100%; margin: 16px 0 18px; }
  .pillar-tabs > .pillar-detail { width: 100%; margin: 12px 0; }
  .problem-location { padding: 0 24px 82px; }
  .problem-location-inner { grid-template-columns: 1fr; gap: 32px; padding-top: 48px; }
  .problem-location-heading h2 { max-width: 720px; }
  .problem-location-copy { max-width: 780px; }
  .convergence .section-heading { margin-bottom: 46px; }
  .convergence-map { grid-template-columns: 1fr; gap: 16px; }
  .convergence-map::before { top: 18%; bottom: 18%; left: 50%; right: auto; width: 1px; height: auto; }
  .meeting-point { width: 170px; justify-self: center; }
  .side-card { min-height: 145px; padding: 30px; }
  .convergence-question { margin-top: 56px; }
  .journey-track { grid-template-columns: repeat(2, 1fr); }
  .founder-identity { padding: 0 0 32px; border-left: 0; border-bottom: 1px solid rgba(41,40,36,.2); }
  .legal-hero { min-height: 360px; padding: 140px 32px 64px; }
  .legal-content { width: min(760px, calc(100% - 64px)); padding: 72px 0 88px; }
}

@media (max-width: 720px) {
  .lens-switch { grid-template-columns: 1fr; margin-bottom: 56px; }
  .clue-principle { margin-top: -28px; margin-bottom: 48px; }
  .symptoms { grid-template-columns: 1fr; }
  .symptoms > .insight-card { margin-top: 12px; }
}

@media (max-width: 620px) {
  .site-header { padding: 18px 20px; }
  .site-header nav { top: 74px; right: 20px; left: 20px; }
  .hero { gap: 18px; padding: 118px 20px 68px; }
  .hero h1 { font-size: clamp(42px, 13vw, 50px); line-height: 1; }
  .hero-intro { margin: 25px 0; font-size: 17px; line-height: 1.65; }
  .primary-button { width: 100%; min-height: 54px; justify-content: space-between; }
  .hero-model { width: min(330px, calc(100vw - 44px)); margin: 50px 0 78px; }
  .model-note { right: 50%; bottom: auto; top: calc(100% + 22px); width: max-content; padding: 11px 0 0; border-top: 2px solid var(--bronze); border-left: 0; text-align: center; transform: translateX(50%); }
  .perspective { padding: 72px 20px; }
  .perspective > .section-heading { margin-bottom: 40px; }
  .perspective > .section-heading h2 { font-size: clamp(34px, 10.8vw, 42px); }
  .perspective > .section-heading > p:last-child { font-size: 17px; }
  .lens { min-height: 0; padding: 24px 20px; }
  .lens strong { font-size: 26px; }
  .clue-principle { display: block; padding-left: 16px; }
  .clue-principle strong, .clue-principle span { display: block; }
  .clue-principle span { margin-top: 8px; }
  .diagnostic-intro { margin-bottom: 26px; }
  .diagnostic-intro h3 { font-size: clamp(31px, 9.2vw, 38px); line-height: 1.08; }
  .diagnostic-intro > p:last-child { font-size: 16px; }
  .explorer-grid { gap: 24px; }
  .symptoms { gap: 6px; }
  .symptom { min-height: 64px; padding: 18px 14px; gap: 13px; font-size: 13px; }
  .insight-card, .pillar-detail { min-height: 0; padding: 31px 24px; }
  .insight-card { padding: 30px 22px; }
  .insight-topline { align-items: flex-start; flex-wrap: wrap; row-gap: 8px; }
  .insight-card h3 { margin: 28px 0 18px; font-size: clamp(29px, 8.6vw, 36px); line-height: 1.08; }
  .insight-copy p { font-size: 16px; }
  .insight-details summary { min-height: 52px; align-items: flex-start; padding: 20px 0 8px; }
  .insight-details summary span { min-width: 0; }
  .insight-details summary b { flex: 0 0 auto; }
  .insight-details > div { padding: 16px 0 2px; }
  .problem-location { padding: 0 20px 72px; }
  .problem-location-inner { gap: 26px; padding-top: 42px; }
  .problem-location-heading h2 { font-size: clamp(34px, 10vw, 42px); line-height: 1.08; }
  .problem-location-copy > p { font-size: 16px; }
  .problem-location-copy .problem-location-principle { margin-top: 24px; padding-left: 18px; }
  .convergence .section-heading { margin-bottom: 42px; }
  .convergence .section-heading h2 { font-size: clamp(34px, 10vw, 42px); line-height: 1.08; }
  .convergence-map { gap: 18px; }
  .convergence-map::before { top: 15%; bottom: 15%; }
  .side-card { min-height: 0; padding: 26px 24px; gap: 24px; }
  .side-card strong { font-size: 21px; }
  .meeting-point { width: 150px; }
  .convergence-question { margin-top: 50px; }
  .convergence-question > p { margin-bottom: 26px; font-size: clamp(27px, 8.5vw, 34px); }
  .convergence-close { padding-top: 24px; }
  .convergence-close span { font-size: 16px; line-height: 1.65; }
  .convergence-close strong { margin-top: 24px; }
  .journey-reveal summary { align-items: flex-start; flex-wrap: wrap; }
  .journey-reveal summary b { margin-left: 0; }
  .journey-track { grid-template-columns: 1fr; }
  .founder { gap: 40px; }
  .final-invitation { margin-top: 48px; padding-top: 42px; }
  .enquiry-panel { padding: 28px 20px; }
  .enquiry-form { grid-template-columns: 1fr; }
  .form-row-wide { grid-column: auto; }
  footer { flex-direction: column; }
  .legal-hero { min-height: 310px; padding: 120px 20px 52px; }
  .legal-hero h1 { font-size: clamp(46px, 14vw, 58px); }
  .legal-updated { margin-top: 17px; }
  .legal-content { width: calc(100% - 40px); padding: 56px 0 72px; }
  .legal-content p, .legal-content li { font-size: 16px; line-height: 1.7; }
  .legal-content .legal-lead { font-size: 24px; line-height: 1.42; }
  .legal-content h2 { margin-top: 46px; font-size: 29px; }
}

@media (max-width: 380px) {
  .brand { gap: 10px; font-size: 15px; }
  .brand-mark { width: 40px; height: 40px; }
  .hero { padding-right: 18px; padding-left: 18px; }
  .hero-model { width: min(300px, calc(100vw - 38px)); }
  .orbit span { padding-right: 8px; padding-left: 8px; font-size: 11px; }
  .model-core strong { font-size: 17px; }
  .perspective { padding-right: 18px; padding-left: 18px; }
  .lens { grid-template-columns: 30px 1fr; gap: 12px; padding: 22px 18px; }
  .symptom { padding-right: 12px; padding-left: 12px; }
  .insight-card { padding: 28px 18px; }
  .problem-location { padding-right: 18px; padding-left: 18px; }
  .side-card { padding: 24px 20px; }
  .meeting-point { width: 142px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}