/* ============ TOKENS ============ */
:root{
  --white:      #ffffff;
  --paper:      #f5f8fa;
  --paper-deep: #eef2f5;
  --ink:        #14181c;
  --ink-mid:    #414a56;
  --ink-soft:   #6b7480;
  --rule:       #dfe4ea;

  --blue:       #027eca;
  --blue-deep:  #045f97;
  --blue-tint:  #e8f4fc;
  --blue-tint2: #d8ecfa;

  --thread:     #aab4c0;
  --green:      #1f9d6c;
  --green-tint: #e5f6ef;
  --amber:      #c97a2c;
  --amber-tint: #faeee0;
  --slate:      #4c5c6e;
  --slate-tint: #eaeef1;

  --serif: "Source Serif 4", Georgia, serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container: 1120px;
  --radius: 4px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink-mid);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{
  font-family:var(--serif);
  color:var(--ink);
  margin:0;
  font-weight:600;
  letter-spacing:-0.01em;
}

p{ margin:0 0 1em; }
p:last-child{ margin-bottom:0; }
a{ color:var(--blue); text-decoration:none; }
img{ max-width:100%; display:block; }

.wrap{ max-width:var(--container); margin:0 auto; padding:0 28px; }
section{ padding:96px 0; }
@media (max-width:720px){ section{ padding:64px 0; } }

.bg-paper{ background:var(--paper); }
.bg-blue-tint{ background:var(--blue-tint); }

.eyebrow{
  display:inline-block;
  font-family:var(--sans);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--blue-deep);
  margin-bottom:18px;
}

.tm{
  font-size:0.55em;
  font-weight:400;
  vertical-align:super;
  margin-left:1px;
  color:inherit;
  opacity:0.75;
}

.lede{ font-size:19px; color:var(--ink-mid); max-width:62ch; }

.btn{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--blue); color:var(--white);
  font-family:var(--sans); font-weight:600; font-size:15.5px;
  padding:14px 26px; border-radius:var(--radius); border:1px solid var(--blue);
  cursor:pointer; transition:background .15s ease, transform .15s ease, box-shadow .15s ease;
}
.btn:hover{ background:var(--blue-deep); border-color:var(--blue-deep); transform:translateY(-1px); box-shadow:0 6px 16px rgba(2,126,202,0.25); }
.btn:active{ transform:translateY(0); }
.btn-ghost{ background:transparent; color:var(--ink); border:1px solid var(--rule); }
.btn-ghost:hover{ background:var(--white); border-color:var(--ink-soft); box-shadow:none; transform:none; }

/* ============ WORDMARK ============ */
.wordmark{
  display:inline-flex; align-items:baseline;
  font-family:var(--serif); font-weight:600; line-height:1;
  color:var(--ink); text-decoration:none; position:relative;
}
.wordmark .x{ color:var(--blue); font-weight:700; margin-right:0.02em; }
.wordmark .tip{
  position:absolute; bottom:100%; left:50%; transform:translate(-50%,-8px);
  background:var(--ink); color:var(--white);
  font-family:var(--sans); font-weight:500; font-size:12.5px; line-height:1.4;
  padding:8px 12px; border-radius:4px; width:220px; text-align:center;
  opacity:0; pointer-events:none; transition:opacity .15s ease, transform .15s ease;
}
.wordmark:hover .tip{ opacity:1; transform:translate(-50%,-4px); }
.wordmark .tip::after{ content:""; position:absolute; top:100%; left:50%; transform:translateX(-50%); border:5px solid transparent; border-top-color:var(--ink); }

/* ============ NAV ============ */
header{ position:sticky; top:0; z-index:50; background:rgba(255,255,255,0.92); backdrop-filter:blur(8px); border-bottom:1px solid var(--rule); }
.nav{ display:flex; align-items:center; justify-content:space-between; padding:14px 28px; max-width:var(--container); margin:0 auto; }
.nav-logo img{ height:32px; width:auto; }
.nav-links{ display:flex; align-items:center; list-style:none; margin:0; padding:0; }
.nav-links li:not(:last-child){ margin-right:28px; }
.nav-links a{ color:var(--ink-mid); font-size:14.5px; font-weight:500; padding:6px 0; border-bottom:2px solid transparent; transition:color .15s ease, border-color .15s ease; }
.nav-links a:hover{ color:var(--ink); border-color:var(--blue); }
.nav-links a.current{ color:var(--ink); border-color:var(--blue); }
.nav-cta{ display:flex; align-items:center; gap:20px; }
.nav-cta .btn{ padding:10px 20px; font-size:14.5px; }

.hamburger{ display:none; flex-direction:column; justify-content:center; gap:5px; width:36px; height:36px; background:none; border:none; cursor:pointer; padding:0; }
.hamburger span{ display:block; height:2px; width:100%; background:var(--ink); border-radius:2px; transition:transform .25s ease, opacity .25s ease; }
.hamburger.open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2){ opacity:0; }
.hamburger.open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

@media (max-width:960px){
  .nav-links{ position:absolute; top:100%; left:0; right:0; flex-direction:column; align-items:flex-start; gap:0; background:var(--white); border-bottom:1px solid var(--rule); max-height:0; overflow:hidden; transition:max-height .3s ease; }
  .nav-links.open{ max-height:420px; }
  .nav-links li{ width:100%; margin-right:0 !important; }
  .nav-links a{ display:block; width:100%; padding:16px 28px; border-bottom:1px solid var(--paper-deep); border-left:2px solid transparent; }
  .nav-links a:hover{ border-color:transparent; border-left-color:var(--blue); background:var(--paper); }
  .nav-cta .btn-label{ display:none; }
  .hamburger{ display:flex; }
}

/* ============ HERO ============ */
.hero{ position:relative; overflow:hidden; padding:88px 0 90px; }
.hero-inner{ position:relative; z-index:1; }
.hero h1{ font-size:clamp(32px, 5vw, 54px); line-height:1.14; font-weight:600; max-width:720px; position:relative; z-index:1; }
.hero-sub{ margin-top:26px; font-size:18px; color:var(--ink-mid); max-width:56ch; position:relative; z-index:1; }
.hero-cta{ margin-top:32px; display:flex; align-items:center; gap:18px; flex-wrap:wrap; position:relative; z-index:1; }
.hero-value{ margin-top:22px; font-size:15px; color:var(--blue-deep); font-weight:600; max-width:52ch; position:relative; z-index:1; }

.hero-swoosh{
  position:absolute;
  width:700px;
  height:268px;
  top:44px;
  left:0;
  opacity:0.10;
  pointer-events:none;
  z-index:0;
}

@media (max-width:1100px){
  .hero-swoosh{ width:500px; height:191px; top:40px; left:0; }
}

@media (max-width:900px){
  .hero-swoosh{ width:340px; height:130px; top:34px; left:0; }
}

@media (max-width:560px){
  .hero-swoosh{ width:220px; height:84px; top:30px; left:0; }
}

@media (max-width:720px){
  .hero{ padding:80px 0 60px; }
}

/* ============ REFRAME ============ */
.reframe-grid{ display:grid; grid-template-columns:1.1fr 0.9fr; gap:56px; align-items:start; margin-top:44px; }
@media (max-width:860px){ .reframe-grid{ grid-template-columns:1fr; } }
.stat-card{ background:var(--white); border:1px solid var(--rule); border-radius:var(--radius); padding:22px 22px 20px; margin-bottom:14px; }
.stat-card .num{ font-family:var(--serif); font-size:34px; font-weight:600; color:var(--blue-deep); line-height:1; }
.stat-card .label{ font-size:14px; color:var(--ink-mid); margin-top:8px; }
.stat-source{ font-size:12.5px; color:var(--ink-soft); margin-top:10px; }

/* ============ SECTION HEADS ============ */
.section-head{ max-width:640px; margin-bottom:48px; }
.section-head h2{ font-size:clamp(26px,3vw,36px); font-weight:600; line-height:1.25; }

/* ============ PERSONAS ============ */
.persona-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
@media (max-width:900px){ .persona-grid{ grid-template-columns:1fr; } }
.persona-card{ background:var(--white); border:1px solid var(--rule); border-radius:var(--radius); padding:30px 26px; display:flex; flex-direction:column; height:100%; }
.persona-card .tag{ font-size:12px; font-weight:700; letter-spacing:0.1em; text-transform:uppercase; color:var(--blue-deep); margin-bottom:14px; display:block; min-height:40px; }
.persona-card h3{ font-size:19px; font-weight:600; margin-bottom:12px; line-height:1.35; }
.persona-card p{ font-size:14.8px; color:var(--ink-mid); }

.throughline{ margin-top:36px; font-family:var(--serif); font-size:19px; font-weight:500; color:var(--ink); border-left:3px solid var(--blue); padding-left:20px; max-width:74ch; }

/* ============ X / DPF MEANING ============ */
.x-pull{ font-family:var(--serif); font-size:clamp(24px,3.4vw,34px); line-height:1.4; color:var(--ink); font-weight:500; max-width:820px; }
.x-pull .big-x{ color:var(--blue); font-weight:700; }
.dpf-bridge{ font-size:16px; color:var(--ink-soft); max-width:64ch; margin-bottom:38px; }
.dpf-cols{ display:grid; grid-template-columns:1fr 1fr; gap:28px; margin:36px 0; }
@media (max-width:720px){ .dpf-cols{ grid-template-columns:1fr; } }
.dpf-cols.three-col{ grid-template-columns:1fr 1fr 1fr; }
@media (max-width:860px){ .dpf-cols.three-col{ grid-template-columns:1fr; } }
.dpf-col{ background:var(--white); border:1px solid var(--rule); border-radius:var(--radius); padding:26px; }
.dpf-col h4{ font-size:17px; margin-bottom:10px; }
.dpf-col p{ font-size:14.6px; }
.dpf-col .term{ color:var(--blue-deep); }

/* ============ DEEPLY HUMAN FOUNDATION ============ */
.foundation{ text-align:center; max-width:760px; margin:0 auto; }
.foundation .lede-serif{ font-family:var(--serif); font-size:clamp(20px,2.6vw,26px); color:var(--ink); line-height:1.55; font-weight:500; }
.foundation .thesis{ margin-top:28px; font-size:15.5px; color:var(--ink-mid); }
.thread-start{ width:2px; height:64px; margin:40px auto 0; background:linear-gradient(to bottom, transparent, var(--thread)); }

/* ============ METHODOLOGY / THREAD ============ */
.method-note{ font-size:14.5px; color:var(--ink-soft); margin-bottom:56px; max-width:64ch; }
.stage-list{ position:relative; }
.stage{ display:grid; grid-template-columns:64px 1fr; gap:0 32px; position:relative; }
.stage-rail{ position:relative; display:flex; justify-content:center; }
.stage-rail .line{ position:absolute; top:0; bottom:0; left:50%; width:2px; transform:translateX(-50%); background:var(--stage-color, var(--thread)); }
.stage:last-child .stage-rail .line{ bottom:50%; }
.stage:first-child .stage-rail .line{ top:6px; }
.stage-rail .dot{ position:relative; z-index:2; width:14px; height:14px; border-radius:50%; background:var(--stage-color, var(--thread)); border:3px solid var(--white); box-shadow:0 0 0 2px var(--stage-color, var(--thread)); margin-top:6px; }
.stage-handoff{ grid-column:1 / -1; display:flex; justify-content:center; color:var(--ink-soft); font-family:var(--serif); font-size:13px; padding:10px 0; }
.stage-handoff span{ width:64px; text-align:center; }
.stage-body{ padding-bottom:56px; }
.stage:last-child .stage-body{ padding-bottom:0; }
.stage-kicker{ display:flex; align-items:baseline; gap:12px; flex-wrap:wrap; margin-bottom:10px; }
.stage-kicker .stage-name{ font-family:var(--serif); font-size:22px; font-weight:600; color:var(--ink); }
.stage-kicker .stage-duration{ font-size:13px; color:var(--stage-color, var(--ink-soft)); font-weight:600; }
.stage-body p{ font-size:15px; color:var(--ink-mid); max-width:68ch; }
.stage-driver{ margin-top:16px; background:var(--stage-tint, var(--paper)); border-radius:var(--radius); padding:16px 18px; font-size:14.2px; color:var(--ink-mid); }
.stage-driver .driver-label{ display:block; font-size:11.5px; font-weight:700; letter-spacing:0.08em; text-transform:uppercase; color:var(--stage-color, var(--ink-soft)); margin-bottom:6px; }
.with-you{ font-weight:600; color:var(--ink); }
@media (max-width:600px){ .stage{ grid-template-columns:36px 1fr; gap:0 18px; } .stage-handoff span{ width:36px; } }

/* ============ DON'T DO ============ */
.dont-list{ display:grid; gap:16px; }
.dont-item{ display:flex; gap:16px; align-items:flex-start; background:var(--white); border:1px solid var(--rule); border-left:3px solid var(--blue); border-radius:var(--radius); padding:20px 22px; }
.dont-item .mark{ font-family:var(--serif); font-weight:700; color:var(--blue); font-size:20px; line-height:1.3; }
.dont-item p{ font-size:15px; color:var(--ink-mid); margin:0; }

/* ============ PARTNERS (lighter treatment) ============ */
.partners{ padding:64px 0; }
.partners .wrap{ max-width:820px; }
.partners .eyebrow{ color:var(--ink-soft); }
.partners h2{ font-size:22px; font-weight:600; }
.partners h3{ font-size:18px; font-weight:600; margin-bottom:10px; }
.partners p{ font-size:14.6px; color:var(--ink-mid); }
.partners .invite{ margin-top:14px; font-family:var(--serif); font-weight:500; font-size:16px; color:var(--ink); }
.partner-card{ background:var(--white); border:1px solid var(--rule); border-left:3px solid var(--blue); border-radius:var(--radius); padding:26px 28px; margin-top:28px; }
.partner-card:first-of-type{ margin-top:36px; }

/* ============ TEAM ============ */
.team-intro{ max-width:70ch; }
.team-intro p{ margin-bottom:14px; }
.team-intro p:last-child{ margin-bottom:48px; }
.team-grid{ display:grid; grid-template-columns:1fr 1fr; gap:40px; }
@media (max-width:760px){ .team-grid{ grid-template-columns:1fr; gap:36px; } }
.team-card{ display:flex; gap:22px; align-items:flex-start; }
.team-card img{ width:104px; height:104px; border-radius:50%; object-fit:cover; border:3px solid var(--blue-tint2); flex-shrink:0; }
.team-card .name{ font-family:var(--serif); font-size:19px; font-weight:600; color:var(--ink); }
.team-card .role{ font-size:13px; font-weight:600; color:var(--blue-deep); text-transform:uppercase; letter-spacing:0.05em; margin-top:2px; margin-bottom:12px; }
.team-card p{ font-size:14.6px; color:var(--ink-mid); }
@media (max-width:480px){ .team-card{ flex-direction:column; align-items:flex-start; } }

/* ============ PAGE-LINK TEASER (home -> approach page) ============ */
.teaser{ background:var(--white); border:1px solid var(--rule); border-radius:var(--radius); padding:32px; display:flex; justify-content:space-between; align-items:center; gap:24px; flex-wrap:wrap; }
.teaser .teaser-text h3{ font-size:19px; margin-bottom:8px; }
.teaser .teaser-text p{ font-size:14.6px; color:var(--ink-mid); max-width:56ch; }

/* ============ CTA / CONTACT ============ */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:56px; margin-top:44px; }
@media (max-width:900px){ .contact-grid{ grid-template-columns:1fr; } }
form.contact-form{ display:flex; flex-direction:column; gap:16px; }
.field label{ display:block; font-size:13px; font-weight:600; color:var(--ink); margin-bottom:6px; }
.field input, .field textarea{ width:100%; font-family:var(--sans); font-size:15px; padding:12px 14px; border:1px solid var(--rule); border-radius:var(--radius); background:var(--white); color:var(--ink); resize:vertical; }
.field input:focus, .field textarea:focus{ outline:2px solid var(--blue); outline-offset:1px; border-color:var(--blue); }
.form-status{ font-size:14px; color:var(--green); min-height:20px; }
.form-status.error{ color:#b3401c; }
.form-note{ font-size:13px; color:var(--ink-soft); margin-top:4px; }
.contact-info{ display:flex; flex-direction:column; gap:28px; }
.info-block h4{ font-size:14px; text-transform:uppercase; letter-spacing:0.08em; color:var(--ink-soft); font-weight:700; margin-bottom:8px; }
.info-block p, .info-block a{ font-size:15.5px; color:var(--ink); }

/* ============ APPROACH PAGE TOC ============ */
.approach-toc{ display:flex; flex-wrap:wrap; margin-top:28px; }
.approach-toc a{ font-size:13.5px; font-weight:600; color:var(--blue-deep); border-bottom:1px solid var(--blue-tint2); padding-bottom:2px; margin-right:22px; margin-bottom:10px; }
.approach-toc a:hover{ border-color:var(--blue-deep); }

/* ============ FOOTER ============ */
footer{ background:var(--paper); border-top:1px solid var(--rule); padding:36px 0; }
.footer-inner{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:16px; }
.footer-inner img{ height:22px; width:auto; }
.footer-links{ display:flex; list-style:none; margin:0; padding:0; }
.footer-links li:not(:last-child){ margin-right:22px; }
.footer-links a{ font-size:13.5px; color:var(--ink-soft); }
.footer-links a:hover{ color:var(--blue-deep); }
.footer-copy{ font-size:12.5px; color:var(--ink-soft); }