:root{
    --navy:#0B1B33;
    --navy-deep:#071324;
    --paper:#F6F4EF;
    --white:#FFFFFF;
    --orange:#C6591C;
    --orange-soft:#E38A4C;
    --ink-70: rgba(246,244,239,0.72);
    --ink-45: rgba(246,244,239,0.45);
    --ink-55: rgba(246,244,239,0.55); /* WCAG AA contrast bump for secondary text on navy (see cover-caption, final-book, footer-note) */
    --navy-70: rgba(11,27,51,0.72);
    --navy-45: rgba(11,27,51,0.45);
    --rule: rgba(198,89,28,0.35);
    --serif: 'Fraunces', serif;
    --sans: 'Inter', sans-serif;
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--paper);
    color:var(--navy);
    font-family:var(--sans);
    line-height:1.5;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit; text-decoration:none;}
  img{max-width:100%; display:block;}
  .wrap{max-width:1180px; margin:0 auto; padding:0 40px;}
  @media (max-width:640px){ .wrap{padding:0 22px;} }

  ::selection{background:var(--orange); color:var(--white);}

  /* Focus visibility */
  a:focus-visible, button:focus-visible{
    outline:2px solid var(--orange);
    outline-offset:3px;
  }

  @media (prefers-reduced-motion: reduce){
    *{animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important;}
  }

  /* ---------- NAV ---------- */
  header.site-nav{
    position:fixed; top:0; left:0; right:0; z-index:100;
    background:var(--paper);
    border-bottom:1px solid rgba(11,27,51,0.08);
    transition:background .3s ease;
  }
  .nav-inner{
    max-width:1180px; margin:0 auto; padding:18px 40px;
    display:flex; align-items:center; justify-content:space-between;
  }
  @media (max-width:640px){ .nav-inner{padding:16px 22px;} }
  .brand{
    font-family:var(--serif); font-weight:500; font-size:1.02rem;
    letter-spacing:0.01em;
  }
  .brand .dot{color:var(--orange);}
  nav.links{display:flex; gap:34px; align-items:center;}
  nav.links a{
    font-size:0.82rem; letter-spacing:0.06em; text-transform:uppercase;
    color:var(--navy-70); font-weight:500;
    position:relative; padding-bottom:3px;
  }
  nav.links a::after{
    content:''; position:absolute; left:0; bottom:0; width:0; height:1px;
    background:var(--orange); transition:width .25s ease;
  }
  nav.links a:hover::after{width:100%;}
  .nav-cta{
    background:var(--navy); color:var(--paper) !important;
    padding:9px 18px; font-size:0.78rem !important;
    letter-spacing:0.06em; text-transform:uppercase;
  }
  .nav-cta::after{display:none;}
  .nav-toggle{display:none;}
  @media (max-width:880px){
    nav.links{
      position:fixed; top:60px; left:0; right:0; bottom:0;
      background:var(--paper); flex-direction:column; justify-content:flex-start;
      padding:40px 32px; gap:26px; transform:translateX(100%);
      transition:transform .35s ease; align-items:flex-start;
    }
    nav.links.open{transform:translateX(0);}
    nav.links a{font-size:1rem;}
    .nav-toggle{
      display:block; background:none; border:none; cursor:pointer;
      width:26px; height:18px; position:relative; z-index:101;
    }
    .nav-toggle span{
      position:absolute; left:0; width:100%; height:2px; background:var(--navy);
      transition:transform .25s ease, opacity .25s ease;
    }
    .nav-toggle span:nth-child(1){top:0;}
    .nav-toggle span:nth-child(2){top:8px;}
    .nav-toggle span:nth-child(3){top:16px;}
    .nav-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg);}
    .nav-toggle.open span:nth-child(2){opacity:0;}
    .nav-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}
  }

  /* ---------- HERO ---------- */
  .hero{
    background:var(--navy);
    color:var(--paper);
    padding:168px 0 100px;
    position:relative;
    overflow:hidden;
  }
  .hero::before{
    content:'';
    position:absolute; inset:0;
    background:
      radial-gradient(ellipse 900px 500px at 85% -10%, rgba(198,89,28,0.16), transparent 60%);
    pointer-events:none;
  }
  .hero-grid{
    display:grid; grid-template-columns:1.05fr 0.75fr; gap:64px; align-items:center;
    position:relative;
  }
  @media (max-width:900px){
    .hero-grid{grid-template-columns:1fr; gap:56px;}
  }
  .eyebrow{
    font-size:0.78rem; letter-spacing:0.14em; text-transform:uppercase;
    color:var(--orange-soft); font-weight:600; margin-bottom:22px;
    display:flex; align-items:center; gap:12px;
  }
  .eyebrow .line{width:30px; height:1px; background:var(--orange-soft);}
  h1.title{
    font-family:var(--serif); font-weight:500; font-size:clamp(3rem, 7vw, 5.4rem);
    line-height:0.98; letter-spacing:-0.01em; margin-bottom:26px;
  }
  h1.title em{
    font-style:italic; font-weight:400; color:var(--orange-soft);
  }
  .subtitle{
    font-family:var(--serif); font-weight:400; font-style:italic;
    font-size:clamp(1.15rem, 2vw, 1.5rem); color:var(--ink-70);
    max-width:520px; margin-bottom:28px; line-height:1.35;
  }
  .lede{
    font-size:1.02rem; color:var(--ink-70); max-width:480px; margin-bottom:44px;
    line-height:1.65;
  }
  .cta-row{display:flex; gap:16px; flex-wrap:wrap; align-items:center;}
  .btn{
    display:inline-flex; align-items:center; gap:10px;
    padding:14px 28px; font-size:0.86rem; letter-spacing:0.04em;
    font-weight:600; border:1px solid transparent; cursor:pointer;
    transition:transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
  }
  .btn-primary{background:var(--orange); color:var(--white);}
  .btn-primary:hover{background:var(--orange-soft); transform:translateY(-1px);}
  .btn-ghost{border-color:rgba(246,244,239,0.35); color:var(--paper);}
  .btn-ghost:hover{border-color:var(--paper); background:rgba(246,244,239,0.06);}
  .btn-ghost.dark{border-color:rgba(11,27,51,0.3); color:var(--navy);}
  .btn-ghost.dark:hover{border-color:var(--navy); background:rgba(11,27,51,0.05);}

  .author-credit{
    margin-top:44px; font-size:0.82rem; color:var(--ink-45);
    letter-spacing:0.03em; padding-top:20px; border-top:1px solid rgba(246,244,239,0.14);
  }
  .author-credit strong{color:var(--ink-70); font-weight:600;}

  /* Book cover mock */
  .cover-frame{
    position:relative; display:flex; justify-content:center; align-items:center;
  }
  .cover{
    width:320px; max-width:100%; height:auto;
    box-shadow: 0 40px 80px -20px rgba(0,0,0,0.55), 0 4px 0 rgba(0,0,0,0.2);
    animation:float 7s ease-in-out infinite;
    display:block;
  }
  @keyframes float{
    0%,100%{transform:translateY(0) rotate(-0.4deg);}
    50%{transform:translateY(-10px) rotate(0.4deg);}
  }
  .cover-caption{
    text-align:center; font-size:0.72rem; color:var(--ink-55);
    margin-top:22px; letter-spacing:0.03em;
  }

  /* ---------- SECTION SCAFFOLDING ---------- */
  section{padding:120px 0;}
  @media (max-width:640px){ section{padding:84px 0;} }
  .section-head{max-width:680px; margin-bottom:64px;}
  .section-eyebrow{
    font-size:0.76rem; letter-spacing:0.14em; text-transform:uppercase;
    color:var(--orange); font-weight:600; margin-bottom:16px;
  }
  h2.section-title{
    font-family:var(--serif); font-weight:500; font-size:clamp(1.9rem, 4vw, 2.7rem);
    line-height:1.12; letter-spacing:-0.01em;
  }
  h2.section-title em{font-style:italic; font-weight:400; color:var(--orange);}
  .section-lede{
    font-size:1.02rem; color:var(--navy-70); max-width:560px; margin-top:18px; line-height:1.6;
  }

  .reveal{opacity:0; transform:translateY(26px); transition:opacity .8s ease, transform .8s ease;}
  .reveal.in{opacity:1; transform:translateY(0);}

  /* ---------- CHALLENGE (three clocks) ---------- */
  .challenge{background:var(--paper);}
  .clocks{
    display:grid; grid-template-columns:repeat(3,1fr); gap:0;
    border-top:1px solid rgba(11,27,51,0.12);
  }
  @media (max-width:800px){ .clocks{grid-template-columns:1fr;} }
  .clock-col{
    padding:44px 36px 0; border-right:1px solid rgba(11,27,51,0.12);
    border-bottom:1px solid rgba(11,27,51,0.12);
  }
  .clock-col:last-child{border-right:none;}
  .clock-face{
    width:64px; height:64px; border-radius:50%;
    border:1.5px solid var(--navy); position:relative; margin-bottom:26px;
  }
  .clock-face .hand{
    position:absolute; left:50%; top:50%; background:var(--orange);
    transform-origin:0 0;
  }
  .clock-face .hand.h1{width:20px; height:2px;}
  .clock-face .hand.h2{width:15px; height:2px;}
  .wrap.wrap-flush{padding:0;}
  .clock-ops .hand.h1{transform:rotate(90deg) translate(0,-1px);}
  .clock-ops .hand.h2{transform:rotate(0deg) translate(0,-1px);}
  .clock-delivery .hand.h1{transform:rotate(45deg) translate(0,-1px);}
  .clock-delivery .hand.h2{transform:rotate(160deg) translate(0,-1px);}
  .clock-transform .hand.h1{transform:rotate(200deg) translate(0,-1px);}
  .clock-transform .hand.h2{transform:rotate(300deg) translate(0,-1px);}
  .btn-spaced{margin-top:8px;}
  .clock-label{
    font-size:0.72rem; letter-spacing:0.1em; text-transform:uppercase;
    color:var(--navy-45); font-weight:600; margin-bottom:10px;
  }
  .clock-name{
    font-family:var(--serif); font-size:1.5rem; font-weight:500; margin-bottom:14px;
  }
  .clock-text{font-size:0.94rem; color:var(--navy-70); line-height:1.6; padding-bottom:36px;}
  .challenge-statement{
    margin-top:56px; max-width:760px;
    font-family:var(--serif); font-style:italic; font-weight:400;
    font-size:clamp(1.3rem, 2.6vw, 1.75rem); line-height:1.4; color:var(--navy);
    border-left:2px solid var(--orange); padding-left:28px;
  }

  /* ---------- FRAMEWORK ---------- */
  .framework{background:var(--navy); color:var(--paper);}
  .framework .section-eyebrow{color:var(--orange-soft);}
  .framework .section-title{font-size:clamp(2.1rem, 4.6vw, 3.05rem);}
  .framework .section-lede{color:var(--ink-70);}
  .framework-map{
    display:flex; justify-content:space-between; align-items:flex-start;
    position:relative; margin:52px 0 60px;
    padding:0 10px;
  }
  .map-line{
    position:absolute; top:23px; left:34px; right:34px; height:1px;
    background:rgba(230,138,76,0.35); z-index:0;
  }
  .map-node{
    position:relative; z-index:1; display:flex; flex-direction:column; align-items:center;
    flex:1 1 0;
  }
  .map-dot{
    width:46px; height:46px; border-radius:50%;
    background:var(--navy); border:1.5px solid var(--orange);
    display:flex; align-items:center; justify-content:center;
    font-family:var(--serif); font-style:italic; font-size:1rem; color:var(--orange-soft);
    margin-bottom:14px;
  }
  .map-label{
    font-size:0.76rem; letter-spacing:0.06em; text-transform:uppercase; font-weight:600;
    color:var(--ink-70); text-align:center;
  }
  @media (max-width:700px){
    .framework-map{display:none;}
  }
  .pillars{border-top:1px solid rgba(246,244,239,0.14);}
  .pillar{
    display:grid; grid-template-columns:90px 1fr 1.3fr; gap:30px;
    padding:34px 0; border-bottom:1px solid rgba(246,244,239,0.14);
    align-items:baseline;
  }
  @media (max-width:760px){
    .pillar{grid-template-columns:50px 1fr; }
    .pillar .pillar-desc{grid-column:2/3;}
  }
  .pillar-num{
    font-family:var(--serif); font-size:1.1rem; color:var(--orange-soft);
    font-weight:400; font-style:italic;
  }
  .pillar-name{
    font-family:var(--serif); font-size:1.5rem; font-weight:500;
  }
  .pillar-desc{font-size:0.95rem; color:var(--ink-70); line-height:1.6;}

  .altitudes{
    margin-top:80px; padding-top:56px; border-top:1px solid rgba(246,244,239,0.14);
    display:grid; grid-template-columns:repeat(3,1fr); gap:48px;
  }
  @media (max-width:800px){ .altitudes{grid-template-columns:1fr; gap:36px;} }
  .altitude-note{
    font-size:0.8rem; color:var(--ink-45); text-transform:uppercase; letter-spacing:0.08em;
    margin-bottom:24px;
  }
  .altitude{position:relative; padding-left:0;}
  .altitude-level{
    font-size:0.72rem; letter-spacing:0.1em; text-transform:uppercase;
    color:var(--orange-soft); font-weight:600; margin-bottom:10px;
  }
  .altitude-name{font-family:var(--serif); font-size:1.3rem; margin-bottom:10px; font-weight:500;}
  .altitude-desc{font-size:0.9rem; color:var(--ink-70); line-height:1.6;}
  .altitude-track{
    height:2px; background:rgba(246,244,239,0.15); margin-top:70px; position:relative;
  }
  .altitude-track .fill{
    position:absolute; left:0; top:0; height:100%; background:var(--orange);
    width:0%; transition:width 1.4s cubic-bezier(.2,.8,.2,1);
  }
  .altitude-track.in .fill{width:100%;}
  .same-note{
    margin-top:44px; font-size:0.95rem; color:var(--ink-70); max-width:640px; line-height:1.65;
    font-style:italic; font-family:var(--serif);
  }

  /* ---------- GRAVITY ---------- */
  .gravity{
    background:var(--paper); position:relative; overflow:hidden;
  }
  .gravity-inner{
    display:grid; grid-template-columns:0.9fr 1.1fr; gap:70px; align-items:center;
  }
  @media (max-width:860px){ .gravity-inner{grid-template-columns:1fr;} }
  .gravity-visual{
    position:relative; height:380px;
    display:flex; align-items:flex-end; justify-content:center;
  }
  .drift-line{
    position:relative; width:2px; height:100%; background:rgba(11,27,51,0.15);
  }
  .drift-dot{
    position:absolute; left:50%; transform:translateX(-50%);
    width:11px; height:11px; border-radius:50%; background:var(--navy);
  }
  .drift-dot.orange{background:var(--orange);}
  .drift-dot.top{top:6%;}
  .drift-dot.mid{top:46%;}
  .drift-dot.bottom{top:90%;}
  .drift-label{
    position:absolute; left:26px; font-size:0.8rem; color:var(--navy-70);
    white-space:nowrap;
  }
  .drift-label.top{top:2%;}
  .drift-label.mid{top:42%;}
  .drift-label.bottom{top:86%; color:var(--orange); font-weight:600;}
  .drift-arrow{
    position:absolute; left:50%; top:6%; width:2px; background:var(--orange);
    transform:translateX(-50%); transition:height 1.6s cubic-bezier(.2,.8,.2,1); height:0;
  }
  .gravity-visual.in .drift-arrow{height:84%;}

  .gravity-body .section-eyebrow{color:var(--orange);}
  .gravity-list{margin-top:28px; display:flex; flex-direction:column; gap:16px;}
  .gravity-item{
    font-size:0.98rem; color:var(--navy-70); padding-left:20px; position:relative; line-height:1.55;
  }
  .gravity-item::before{
    content:''; position:absolute; left:0; top:9px; width:8px; height:1px; background:var(--orange);
  }
  .gravity-item strong{color:var(--navy);}
  .gravity-quote{
    margin-top:38px; font-family:var(--serif); font-style:italic; font-weight:400;
    font-size:clamp(1.25rem, 2.4vw, 1.6rem); line-height:1.4;
    color:var(--navy); border-top:1px solid rgba(11,27,51,0.12); padding-top:28px;
  }

  /* ---------- INSIDE ---------- */
  .inside{background:var(--navy); color:var(--paper); padding-top:84px; padding-bottom:84px;}
  .inside .section-eyebrow{color:var(--orange-soft);}
  .inside .section-lede{color:var(--ink-70);}
  .inside-grid{
    display:grid; grid-template-columns:1fr 1fr; gap:70px; margin-top:40px;
  }
  @media (max-width:800px){ .inside-grid{grid-template-columns:1fr; gap:40px;} }
  .topic-list{
    columns:2; column-gap:32px;
  }
  @media (max-width:520px){ .topic-list{columns:1;} }
  .topic-list div{
    font-size:0.95rem; padding:10px 0; border-bottom:1px solid rgba(246,244,239,0.12);
    color:var(--ink-70); break-inside:avoid;
  }
  .inside-copy p{font-size:1rem; color:var(--ink-70); line-height:1.7; margin-bottom:20px;}
  .inside-copy p:first-child{
    font-family:var(--serif); font-style:italic; font-size:1.2rem; color:var(--paper);
  }

  /* ---------- RESOURCES ---------- */
  .resources{background:var(--paper);}
  .res-list{border-top:1px solid rgba(11,27,51,0.12);}
  .res-row{
    display:grid; grid-template-columns:40px 1fr auto; gap:24px; align-items:center;
    padding:28px 0; border-bottom:1px solid rgba(11,27,51,0.12);
  }
  @media (max-width:640px){
    .res-row{grid-template-columns:32px 1fr; row-gap:14px;}
    .res-row .res-action{grid-column:1/3;}
  }
  .res-index{font-family:var(--serif); font-style:italic; color:var(--orange); font-size:1.05rem;}
  .res-name{font-family:var(--serif); font-size:1.2rem; font-weight:500; margin-bottom:6px;}
  .res-desc{font-size:0.88rem; color:var(--navy-70); line-height:1.5;}
  .res-action{
    font-size:0.78rem; letter-spacing:0.06em; text-transform:uppercase; font-weight:600;
    color:var(--navy); white-space:nowrap; display:flex; align-items:center; gap:8px;
    padding:10px 0; border-bottom:1px solid var(--navy);
    transition:color .2s ease, border-color .2s ease;
  }
  .res-row:hover .res-action{color:var(--orange); border-color:var(--orange);}

  /* ---------- FOR TEAMS ---------- */
  .teams{background:var(--paper);}
  .teams-inner{
    border-top:1px solid rgba(11,27,51,0.12); border-bottom:1px solid rgba(11,27,51,0.12);
    padding:60px 0; display:grid; grid-template-columns:1fr 1fr; gap:60px;
  }
  @media (max-width:800px){ .teams-inner{grid-template-columns:1fr; gap:32px;} }
  .teams-copy p{font-size:1rem; color:var(--navy-70); line-height:1.7;}
  .teams-tags{display:flex; flex-direction:column; gap:0;}
  .teams-tags div{
    font-size:0.92rem; padding:14px 0; border-bottom:1px solid rgba(11,27,51,0.1);
    color:var(--navy); display:flex; align-items:center; gap:12px;
  }
  .teams-tags div::before{content:''; width:6px; height:6px; background:var(--orange); flex-shrink:0;}

  /* ---------- ABOUT ---------- */
  .about{background:var(--paper);}
  .about-inner{
    display:grid; grid-template-columns:220px 1fr; gap:56px; align-items:start;
  }
  @media (max-width:700px){ .about-inner{grid-template-columns:1fr;} }
  .about-mark{
    width:100%; aspect-ratio:1; background:var(--navy); position:relative;
    overflow:hidden;
  }
  .about-mark img{
    width:100%; height:100%; object-fit:cover; object-position:center 30%;
    display:block;
  }
  .about-mark::after{
    content:''; position:absolute; inset:0;
    box-shadow: inset 0 0 0 1px rgba(230,138,76,0.25);
    pointer-events:none;
  }
  .about-copy p{font-size:1.02rem; color:var(--navy-70); line-height:1.75; margin-bottom:18px;}
  .about-copy p:first-child{color:var(--navy); font-size:1.1rem;}
  .about-links{margin-top:26px; display:flex; gap:16px;}

  /* ---------- FINAL CTA ---------- */
  .final{
    background:var(--navy); color:var(--paper); text-align:center; padding:140px 0;
    position:relative; overflow:hidden;
  }
  .final::before{
    content:''; position:absolute; inset:0;
    background:radial-gradient(ellipse 700px 400px at 50% 110%, rgba(198,89,28,0.2), transparent 60%);
  }
  .final-inner{position:relative;}
  .final h2{
    font-family:var(--serif); font-weight:500; font-size:clamp(2.3rem, 6vw, 3.9rem);
    line-height:1.08; margin-bottom:28px; letter-spacing:-0.01em;
  }
  .final h2 em{font-style:italic; color:var(--orange-soft); font-weight:400;}
  .final-rule{
    width:56px; height:1px; background:var(--orange); margin:0 auto 32px;
  }
  .final .final-book{
    font-size:0.94rem; color:var(--ink-55); max-width:520px; margin:0 auto 48px; line-height:1.6;
  }

  /* ---------- FOOTER ---------- */
  footer{background:var(--navy-deep); color:var(--ink-45); padding:56px 0 40px;}
  .footer-inner{
    display:flex; justify-content:space-between; align-items:flex-start; flex-wrap:wrap; gap:24px;
    padding-bottom:28px; border-bottom:1px solid rgba(246,244,239,0.1);
  }
  .footer-brand{font-family:var(--serif); font-size:1.2rem; color:var(--ink-70);}
  .footer-links{display:flex; gap:26px; flex-wrap:wrap;}
  .footer-links a{font-size:0.85rem; color:var(--ink-45); transition:color .2s ease;}
  .footer-links a:hover{color:var(--orange-soft);}
  .footer-note{
    margin-top:24px; font-size:0.8rem; color:var(--ink-55); max-width:560px; line-height:1.6;
  }
  .validation-badges{
    display:flex; align-items:center; flex-wrap:wrap; gap:8px; margin-top:16px;
  }
  .validation-badges a{display:inline-flex; align-items:center; opacity:0.75; transition:opacity .2s ease;}
  .validation-badges a:hover{opacity:1;}
  .validation-badges img{display:block; height:20px; width:auto; border:0;}