:root{
    --navy:#0e1f38; --navy2:#16294a; --teal:#1fa5a0; --teal-d:#158783;
    --ink:#1a2433; --mut:#5c6b80; --bg:#ffffff; --soft:#f4f7fa; --line:#e3e9f0;
    --amber:#b7791f;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{font-family:'Segoe UI',system-ui,-apple-system,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
  .wrap{max-width:1080px;margin:0 auto;padding:0 24px}
  .narrow{max-width:820px;margin:0 auto}

  /* header */
  header{position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);z-index:50}
  .hd{display:flex;align-items:center;justify-content:space-between;height:64px}
  .logo{font-weight:800;letter-spacing:.12em;font-size:19px;color:var(--navy);text-decoration:none}
  .logo span{color:var(--teal)}
  .btn{display:inline-block;background:var(--teal);color:#fff;text-decoration:none;font-weight:700;border-radius:8px;padding:12px 22px;transition:.15s}
  .btn:hover{background:var(--teal-d)}
  .btn.big{font-size:18px;padding:16px 34px}
  .btn.ghost{background:transparent;color:var(--navy);border:2px solid var(--navy)}

  /* hero */
  .hero{background:linear-gradient(160deg,var(--navy) 0%,var(--navy2) 100%);color:#fff;padding:72px 0 64px}
  .eyebrow{display:inline-block;background:rgba(31,165,160,.15);border:1px solid rgba(31,165,160,.5);color:#7fd9d5;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;border-radius:99px;padding:6px 14px;margin-bottom:22px}
  h1{font-size:clamp(30px,4.6vw,50px);line-height:1.12;font-weight:800;max-width:820px}
  h1 em{font-style:normal;color:#5fd3ce}
  .sub{font-size:clamp(17px,2vw,21px);color:#c6d2e2;max-width:720px;margin:22px 0 30px}
  .sub b{color:#fff}
  .hero-cta{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
  .risk-line{font-size:14px;color:#9fb1c8;margin-top:14px}
  .risk-line b{color:#7fd9d5}

  /* sections */
  section{padding:64px 0}
  section.alt{background:var(--soft)}
  h2{font-size:clamp(24px,3vw,34px);line-height:1.2;font-weight:800;color:var(--navy);margin-bottom:14px}
  .lead{font-size:18px;color:var(--mut);max-width:760px;margin-bottom:34px}
  .kicker{color:var(--teal-d);font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:13px;margin-bottom:10px}

  /* cost bullets */
  .cost{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
  .cost .card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px}
  .cost .num{font-size:30px;font-weight:800;color:var(--navy)}
  .cost .num span{color:var(--teal-d);font-size:16px;font-weight:700}
  .cost p{color:var(--mut);font-size:15px;margin-top:6px}
  .foot-note{font-size:13px;color:var(--mut);margin-top:16px}

  /* steps */
  .steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;counter-reset:st}
  .step{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px;position:relative}
  .step::before{counter-increment:st;content:counter(st);position:absolute;top:-16px;left:22px;width:34px;height:34px;border-radius:50%;background:var(--teal);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}
  .step h3{margin:8px 0 8px;color:var(--navy);font-size:18px}
  .step p{color:var(--mut);font-size:15px}

  /* worked example */
  .demo{margin-top:48px}
  .demo-head h3{color:var(--navy);font-size:22px}
  .demo-head p{color:var(--mut);font-size:14px;margin:4px 0 22px}
  .demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
  @media(max-width:820px){.demo-grid{grid-template-columns:1fr}}
  .inv-paper{background:#fff;border:1px solid #cfd8e3;border-radius:6px;padding:22px;box-shadow:0 6px 24px rgba(14,31,56,.08);font-size:12px;color:#3a4657;transform:rotate(-.6deg)}
  .inv-top{display:flex;justify-content:space-between;gap:12px;margin-bottom:14px}
  .inv-logo{font-weight:800;font-size:14px;color:#22304a;line-height:1.15}
  .inv-logo span{font-weight:600;font-size:11px;color:#6b7a92}
  .inv-addr{font-size:10px;color:#8a97ab;margin-top:4px}
  .inv-meta{text-align:right;font-size:11px;color:#55637a}
  .inv-table{width:100%;border-collapse:collapse;margin:8px 0;font-size:11px}
  .inv-table th{background:#eef2f7;color:#55637a;padding:5px 8px;text-align:left;font-weight:700}
  .inv-table td{padding:5px 8px;border-bottom:1px solid #edf1f6}
  .inv-totals{margin-top:8px;text-align:right;font-size:11px}
  .inv-totals div{padding:2px 0}
  .inv-grand{border-top:2px solid #22304a;font-size:13px;padding-top:4px!important}
  .inv-note{margin-top:12px;font-size:10px;color:#8a97ab;font-style:italic}
  .ext{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px 20px}
  .ext-title{font-size:12px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:var(--teal-d);margin-bottom:10px}
  .ext-row{display:flex;align-items:baseline;gap:10px;padding:7px 10px;border-radius:7px;font-size:13px;margin-bottom:4px}
  .ext-row .f{color:var(--mut);min-width:120px;font-weight:600}
  .ext-row .f i,.ext-row .v i{font-style:normal;font-size:11px;color:#93a1b5;display:block}
  .ext-row .v{color:var(--navy);font-weight:600;flex:1}
  .ext-row .c{font-weight:800;font-size:12px}
  .ext-row.ok{background:#f2faf9}
  .ext-row.ok .c{color:var(--teal-d)}
  .ext-row.warn{background:#fdf6ea;border:1px dashed #e3c98f}
  .ext-row.warn .c{color:var(--amber)}
  .ext-flag{font-size:12.5px;color:#7a6327;background:#fffdf5;border:1px solid #ecdcb0;border-radius:7px;padding:10px 12px;margin:10px 0 16px}
  .ext-posting code{display:block;background:var(--navy);color:#8fe6e2;border-radius:7px;padding:12px 14px;font-size:12px;line-height:1.5}

  /* offer stack */
  .stack{background:#fff;border:2px solid var(--navy);border-radius:16px;overflow:hidden;max-width:760px;margin:0 auto}
  .stack-head{background:var(--navy);color:#fff;padding:26px 32px}
  .stack-head h3{font-size:24px}
  .stack-head p{color:#b9c8dd;font-size:15px;margin-top:4px}
  .stack ul{list-style:none;padding:26px 32px 10px}
  .stack li{padding:12px 0 12px 38px;border-bottom:1px dashed var(--line);position:relative;font-size:16px}
  .stack li:last-child{border-bottom:none}
  .stack li::before{content:"✓";position:absolute;left:4px;top:11px;width:24px;height:24px;border-radius:50%;background:#e2f4f3;color:var(--teal-d);font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px}
  .stack li b{color:var(--navy)}
  .stack li small{display:block;color:var(--mut)}
  .price-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;background:var(--soft);padding:24px 32px;border-top:1px solid var(--line)}
  .price .amt{font-size:34px;font-weight:800;color:var(--navy)}
  .price .amt small{font-size:15px;color:var(--mut);font-weight:600}
  .price p{font-size:13px;color:var(--mut)}

  /* effort */
  .effort{max-width:760px;margin:34px auto 0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px 32px}
  .effort h3{color:var(--navy);margin-bottom:16px}
  .effort-items{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:14px}
  .effort-items div{background:var(--soft);border-radius:10px;padding:14px 16px}
  .effort-items b{display:block;color:var(--teal-d);font-size:20px}
  .effort-items span{color:var(--mut);font-size:14px}
  .effort > p{color:var(--mut);font-size:14px}

  /* calculator */
  .calc{max-width:760px;margin:34px auto 0;background:var(--navy);border-radius:14px;padding:30px 32px;color:#fff}
  .calc h3{margin-bottom:6px}
  .calc .calc-sub{color:#b9c8dd;font-size:14px;margin-bottom:18px}
  .calc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:18px}
  .calc label{color:#c6d2e2;font-size:13px;font-weight:700;margin:0 0 6px}
  .calc input{border:none;border-radius:8px;padding:12px 14px;font-size:16px;width:100%}
  .calc-result{background:rgba(31,165,160,.15);border:1px solid rgba(31,165,160,.5);border-radius:10px;padding:18px 22px;display:flex;flex-wrap:wrap;gap:8px 28px;align-items:baseline}
  .calc-result .r{font-size:14px;color:#b9c8dd}
  .calc-result .r b{display:block;font-size:26px;color:#5fd3ce}
  .calc-note{font-size:12px;color:#8fa2bd;margin-top:12px}

  /* guarantee */
  .guarantee{max-width:760px;margin:34px auto 0;background:#fffdf5;border:2px solid var(--amber);border-radius:14px;padding:28px 32px;display:flex;gap:20px;align-items:flex-start}
  .g-badge{min-width:56px;height:56px;border-radius:50%;background:var(--amber);color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:800}
  .guarantee h3{color:var(--navy);margin-bottom:6px}
  .guarantee p{color:#5a4a1f;font-size:15px}

  /* comparison */
  table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:15px}
  th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}
  th{background:var(--navy);color:#fff;font-size:14px}
  td:first-child{font-weight:700;color:var(--navy)}
  tr:last-child td{border-bottom:none}
  .yes{color:var(--teal-d);font-weight:700}
  .no{color:#b23b3b}

  /* proof */
  .proof{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
  .pcard{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px}
  .pcard .tag{font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--teal-d)}
  .pcard h3{color:var(--navy);margin:8px 0}
  .pcard p{color:var(--mut);font-size:15px}

  /* faq */
  details{background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:12px;overflow:hidden}
  summary{cursor:pointer;padding:18px 22px;font-weight:700;color:var(--navy);list-style:none;position:relative}
  summary::after{content:"+";position:absolute;right:20px;font-size:22px;color:var(--teal-d)}
  details[open] summary::after{content:"–"}
  details p{padding:0 22px 18px;color:var(--mut);font-size:15px}

  /* team */
  .team{display:flex;flex-wrap:wrap;gap:24px;justify-content:center;margin:0 auto 40px;max-width:760px}
  .member{text-align:center;width:180px}
  .member .photo{width:132px;height:132px;border-radius:50%;margin:0 auto 12px;background:var(--soft);border:3px solid var(--teal);display:flex;align-items:center;justify-content:center;color:var(--mut);font-size:12px;overflow:hidden}
  .member .photo img{width:100%;height:100%;object-fit:cover}
  .member .photo.mono{font-size:38px;font-weight:800;color:var(--teal-d);letter-spacing:.02em}
  .member h4{color:var(--navy);font-size:16px}
  .member p{color:var(--mut);font-size:13px;margin-top:2px}
  .team-caption{text-align:center;font-size:14px;color:var(--mut);max-width:520px;margin:0 auto 28px}
  .team-caption b{color:var(--navy)}

  /* form */
  .form-box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:36px;max-width:640px;margin:0 auto;box-shadow:0 8px 40px rgba(14,31,56,.08)}
  label{display:block;font-weight:700;font-size:14px;color:var(--navy);margin:16px 0 6px}
  input,select,textarea{width:100%;padding:12px 14px;border:1px solid #c8d3e0;border-radius:8px;font-size:15px;font-family:inherit}
  input:focus,select:focus,textarea:focus{outline:2px solid var(--teal);border-color:var(--teal)}
  .form-note{font-size:13px;color:var(--mut);margin-top:14px;text-align:center}
  .slots{display:inline-block;background:#fdf1e3;color:var(--amber);border:1px solid #ecd3ae;border-radius:99px;font-size:13px;font-weight:700;padding:5px 14px;margin-bottom:18px}

  /* footer */
  footer{background:var(--navy);color:#8fa2bd;padding:34px 0;font-size:14px}
  .ft{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;align-items:center}
  footer a{color:#c6d2e2;text-decoration:none;margin-left:18px}
  footer a:hover{color:#fff}

  /* modal */
  .modal{display:none;position:fixed;inset:0;background:rgba(10,20,40,.6);z-index:100;align-items:center;justify-content:center;padding:24px}
  .modal:target{display:flex}
  .modal-card{background:#fff;border-radius:14px;max-width:640px;max-height:80vh;overflow-y:auto;padding:36px;position:relative}
  .modal-card h3{color:var(--navy);margin-bottom:12px}
  .modal-card p{color:var(--mut);font-size:14px;margin-bottom:10px}
  .modal-close{position:absolute;top:14px;right:18px;font-size:26px;color:var(--mut);text-decoration:none}

  .center{text-align:center}
  .mt{margin-top:34px}

  /* derived from the master's inline style attributes, see verify_proof.py */
  .hero .btn.ghost{color:#fff;border-color:#fff}
  .center .lead{margin-left:auto;margin-right:auto}
  .ext-posting .ext-title{margin-top:0}
  button.btn{border:none;cursor:pointer;width:100%}
  .ft b{color:#fff}
  .table-scroll{overflow-x:auto}

  /* worked-example shape: email / message. A booking request is a message, not
     a table of product lines, so it gets its own fragment and its own styling. */
  .mail-hd{border-bottom:1px solid #e6ebf2;padding-bottom:10px;margin-bottom:12px}
  .mail-hd div{display:flex;gap:8px;font-size:11px;color:#55637a;padding:1px 0}
  .mail-hd .k{min-width:54px;color:#8a97ab;font-weight:600}
  .mail-subject{display:block;font-size:13.5px;font-weight:800;color:#22304a;margin-top:8px}
  .mail-body{font-size:12px;color:#3a4657;line-height:1.6}
  .mail-body p{margin-bottom:9px}
  .mail-sig{color:#6b7a92;font-size:11px;margin-top:12px;font-style:italic}
  .mail-att{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px;border-top:1px dashed #dde4ee;padding-top:10px}
  .mail-att span{font-size:10.5px;background:#eef2f7;color:#55637a;border-radius:5px;padding:4px 9px}