/* Brain Health Smarts design system (job 108, 2026-11-13). Brand from the live site:
   blues #257abb (deep) / #2e9dde, #43a7dd (bright, old hero band + buttons) / #8dcceb (light), navy #0e486e,
   old link blue #1155cc, old red #d62020 / #ea2c2c, text #333. Montserrat headings, Roboto body.
   Body 17px phone / 18px desktop, line-height 1.6; nothing a visitor reads is under 16px. Docs: kit/API.md */
:root{
  --navy:#0e486e; --blue-dk:#1d6aa6; --blue-700:#257abb; --blue:#2e9dde; --blue-400:#43a7dd; --blue-200:#8dcceb;
  --blue-100:#d6ecf9; --blue-50:#eef7fd; --link:#1155cc; --red:#d62020; --red-dk:#b51818;
  --green:#1f9d55; --green-dk:#17834a; --yellow:#ffe27a; --yellow-lt:#fff7d6;
  --text:#333; --ink:#14283a; --muted:#56616b; --line:#dbe6ef; --grey:#f4f7fa; --white:#fff;
  --radius:16px; --radius-sm:10px; --radius-lg:22px;
  --shadow:0 10px 30px rgba(14,72,110,.08),0 2px 6px rgba(14,72,110,.05);
  --shadow-lg:0 22px 50px rgba(14,72,110,.16);
  --wrap:1160px; --text-w:720px; --hdr-h:70px;
  --f-head:'Montserrat',system-ui,-apple-system,'Segoe UI',sans-serif;
  --f-body:'Roboto',system-ui,-apple-system,'Segoe UI',sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--hdr-h) + 12px)}
html.bhs-noscroll{overflow:hidden}
body.bhs{margin:0;font-family:var(--f-body);font-size:17px;line-height:1.6;color:var(--text);background:#fff;overflow-x:hidden}
@media(min-width:900px){body.bhs{font-size:18px}}
img,video,iframe{max-width:100%}
img{height:auto;vertical-align:middle}
a{color:var(--link);text-underline-offset:3px} a:hover{color:var(--blue-700)}
p{margin:0 0 1em}
b,strong{font-weight:700}
hr{border:0;border-top:1px solid var(--line);margin:2em 0}
ul,ol{padding-left:1.4em;margin:0 0 1.1em} li{margin:0 0 .45em}
:focus-visible{outline:3px solid var(--blue-400);outline-offset:2px}
.bhs-hide,[hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.bhs-skip{position:absolute;left:-999px;top:0;background:#fff;padding:10px 16px;z-index:100}
.bhs-skip:focus{left:10px;top:10px}
@media(max-width:767px){.only-desk{display:none!important}}
@media(min-width:768px){.only-mob{display:none!important}}
.bhs-previewbar{background:var(--navy);color:#fff;text-align:center;font:600 16px/1.4 var(--f-head);padding:8px 12px}

/* ---------- header ---------- */
.bhs-hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(8px);
  border-bottom:1px solid var(--line);box-shadow:0 2px 14px rgba(14,72,110,.05)}
.bhs-hdr__in{max-width:var(--wrap);margin:0 auto;padding:0 20px;height:var(--hdr-h);display:flex;align-items:center;gap:20px}
.bhs-hdr__logo{flex-shrink:1;min-width:0;display:block}
.bhs-hdr__logo img{display:block;height:46px;width:auto;max-width:100%;object-fit:contain}
.bhs-hdr__nav{margin-left:auto}
.bhs-hdr__nav ul{list-style:none;margin:0;padding:0;display:flex;gap:6px;align-items:center}
.bhs-hdr__nav li{margin:0}
.bhs-hdr__nav a{display:block;font:600 16px/1 var(--f-head);color:var(--ink);text-decoration:none;padding:14px 16px;border-radius:999px}
.bhs-hdr__nav a:hover,.bhs-hdr__nav a.is-on{color:var(--blue-700);background:var(--blue-50)}
.bhs-hdr__nav a.bhs-hdr__login{background:var(--blue-700);color:#fff;padding:13px 20px;margin-left:6px}
.bhs-hdr__nav a.bhs-hdr__login:hover{background:var(--navy);color:#fff}
.bhs-hdr__toggle{display:none;margin-left:auto;width:48px;height:48px;border:0;background:transparent;border-radius:10px;cursor:pointer;padding:12px}
.bhs-hdr__toggle span{display:block;height:3px;background:var(--blue-700);border-radius:2px;margin:5px 0}
.bhs-hdr--funnel{position:relative}
.bhs-hdr--funnel .bhs-hdr__in{justify-content:center;position:relative}
.bhs-hdr__mini{position:absolute;right:20px;top:50%;transform:translateY(-50%)}
.bhs-hdr__mini a{display:inline-block;font:600 16px/1 var(--f-head);color:var(--blue-700);text-decoration:none;padding:14px 12px;border-radius:999px}
.bhs-hdr__mini a:hover{background:var(--blue-50)}
@media(max-width:820px){
  .bhs-hdr__toggle{display:block}
  .bhs-hdr__nav{position:absolute;left:0;right:0;top:var(--hdr-h);background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 14px 30px rgba(14,72,110,.10);display:none;margin:0}
  .bhs-hdr.is-open .bhs-hdr__nav{display:block}
  .bhs-hdr__nav ul{flex-direction:column;align-items:stretch;padding:10px 16px 16px;gap:2px}
  .bhs-hdr__nav a{padding:15px 12px;font-size:17px;border-radius:10px}
  .bhs-hdr__nav a.bhs-hdr__login{margin:8px 0 0;text-align:center}
  .bhs-hdr__logo img{height:auto;max-height:40px;max-width:190px}
  .bhs-hdr--funnel .bhs-hdr__in{justify-content:flex-start}
  .bhs-hdr__mini{right:12px}
}

/* ---------- footer ---------- */
.bhs-ftr{background:var(--navy);color:#d7e8f5}
.bhs-ftr__in{max-width:var(--wrap);margin:0 auto;padding:44px 20px 34px;display:flex;flex-direction:column;align-items:center;gap:18px;text-align:center}
.bhs-ftr__logo{display:inline-block;background:#fff;border-radius:14px;padding:10px 16px}
.bhs-ftr__logo img{height:44px;width:auto;display:block}
.bhs-ftr__links{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 8px}
.bhs-ftr__links a{color:#fff;text-decoration:none;font:600 17px/1 var(--f-head);letter-spacing:.03em;padding:14px 12px;border-radius:8px}
.bhs-ftr__links a:hover{background:rgba(255,255,255,.1)}
.bhs-ftr__copy{font-size:17px;margin:0;color:#c5dcee}
.bhs-ftr--slim .bhs-ftr__in{padding:24px 20px}

/* ---------- layout ---------- */
.bhs-main{display:block}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.narrow,.letter{max-width:var(--text-w);margin-left:auto;margin-right:auto}
.wide{max-width:960px;margin-left:auto;margin-right:auto}
.band{padding:52px 0;position:relative}
@media(min-width:900px){.band{padding:76px 0}}
.band--tight{padding:32px 0}
@media(min-width:900px){.band--tight{padding:44px 0}}
.band--white{background:#fff}
.band--grey{background:var(--grey)}
.band--soft{background:linear-gradient(180deg,var(--blue-50) 0%,#fff 100%)}
.band--blue{background:linear-gradient(150deg,var(--blue-700) 0%,var(--blue) 60%,var(--blue-400) 100%);color:#fff}
.band--navy{background:linear-gradient(160deg,var(--navy) 0%,#123f60 100%);color:#fff}
.band--blue h1,.band--blue h2,.band--blue h3,.band--navy h1,.band--navy h2,.band--navy h3{color:#fff}
.band--blue a:not(.btn),.band--navy a:not(.btn){color:#fff}
.center{text-align:center}
.left{text-align:left}
.mt0{margin-top:0!important}.mb0{margin-bottom:0!important}
.mt1{margin-top:1rem}.mt2{margin-top:2rem}.mb1{margin-bottom:1rem}.mb2{margin-bottom:2rem}
.stack>*+*{margin-top:1rem}
.cols{display:grid;gap:28px;align-items:start;margin:0 0 1.5em}
@media(min-width:800px){.cols--2{grid-template-columns:1fr 1fr}.cols--3{grid-template-columns:repeat(3,1fr)}
  .cols--media{grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:center}}

/* ---------- type ---------- */
h1,h2,h3,h4,.t-h{font-family:var(--f-head);color:var(--ink);line-height:1.25;margin:0 0 .6em;font-weight:800;letter-spacing:-.01em}
h1,.t-h1{font-size:clamp(28px,4.6vw,42px)}
h2,.t-h2{font-size:clamp(24px,3.6vw,32px)}
h3,.t-h3{font-size:clamp(20px,2.6vw,24px);font-weight:700}
h4,.t-h4{font-size:19px;font-weight:700}
.t-display{font-size:clamp(30px,5.8vw,52px);line-height:1.12}
.t-lead{font-size:clamp(19px,2.2vw,22px);line-height:1.55;color:var(--ink)}
.t-small{font-size:16px;color:var(--muted)}
.t-blue{color:var(--blue-700)} .t-link{color:var(--link)} .t-red{color:var(--red)} .t-navy{color:var(--navy)}
.t-upper{text-transform:uppercase;letter-spacing:.04em}
.eyebrow{display:inline-block;font:700 16px/1.2 var(--f-head);letter-spacing:.06em;text-transform:uppercase;color:var(--blue-700);
  background:var(--blue-50);border-radius:999px;padding:8px 14px;margin:0 0 14px}
.hl{background:linear-gradient(transparent 55%,var(--yellow) 55%);padding:0 2px}
.sig{font-family:var(--f-head);font-weight:700;color:var(--ink)}

/* ---------- letter column (long copy) ---------- */
.letter{font-size:inherit}
.letter p,.letter li{color:var(--text)}
.letter h2,.letter h3{margin-top:1.6em}
.letter img{display:block;margin:1.4em auto;border-radius:var(--radius-sm)}
.letter blockquote,.quote{margin:1.6em 0;padding:20px 24px;background:var(--blue-50);border-left:5px solid var(--blue);border-radius:0 var(--radius-sm) var(--radius-sm) 0}
.letter ul{list-style:none;padding-left:0}
.letter ul li{position:relative;padding-left:34px}
.letter ul li::before{content:"";position:absolute;left:0;top:.28em;width:22px;height:22px;border-radius:50%;
  background:var(--blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6.5 12.5l3.6 3.6 7.4-7.6' fill='none' stroke='%23fff' stroke-width='2.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat}
.letter ul.plain li{padding-left:0}.letter ul.plain li::before{display:none}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:16px 30px;border:0;border-radius:999px;
  font:800 18px/1.25 var(--f-head);letter-spacing:.01em;text-align:center;text-decoration:none;cursor:pointer;
  background:var(--blue-700);color:#fff;box-shadow:0 8px 20px rgba(37,122,187,.28);transition:transform .12s,box-shadow .12s,background .12s}
.btn:hover{background:var(--navy);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(14,72,110,.3)}
.btn:active{transform:translateY(0)}
@media(min-width:900px){.btn{font-size:20px;padding:18px 38px}}
.btn--go{background:linear-gradient(180deg,#26b466,var(--green));box-shadow:0 8px 20px rgba(31,157,85,.3)}
.btn--go:hover{background:var(--green-dk)}
.btn--bright{background:var(--blue)}
.btn--ghost{background:#fff;color:var(--blue-700);border:2px solid var(--blue-700);box-shadow:none}
.btn--ghost:hover{background:var(--blue-50);color:var(--navy)}
.btn--block{display:flex;width:100%}
.btn--xl{min-height:68px;font-size:clamp(19px,2.4vw,24px);padding:20px 34px}
.btn small,.btn .btn__sub{display:block;font:500 16px/1.3 var(--f-body);opacity:.95;margin-top:4px}
.btn--stack{flex-direction:column;gap:0}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin:1.4em 0}
.nothanks{display:inline-block;font-size:17px;color:var(--muted);text-decoration:underline;padding:12px 6px;min-height:44px}
.nothanks:hover{color:var(--red)}
.badges{display:block;margin:16px auto 0;max-width:min(100%,420px)}

/* ---------- cards / boxes ---------- */
.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 22px;margin:0 0 1.5em;border:1px solid #eaf1f7}
@media(min-width:900px){.card{padding:40px 44px}}
.card--blue{background:var(--blue-50);border-color:var(--blue-100);box-shadow:none}
.card--line{box-shadow:none;border:2px solid var(--blue-100)}
.card--dash{box-shadow:none;border:2px dashed var(--blue-400);background:#fff}
.card--offer{border:3px solid var(--blue);box-shadow:var(--shadow-lg)}
.card--warn{background:var(--yellow-lt);border-color:#f4dc8a;box-shadow:none}
.card__title{font:800 clamp(20px,2.6vw,26px)/1.3 var(--f-head);color:var(--ink);margin:0 0 .6em}
.media{display:grid;gap:22px;align-items:center}
@media(min-width:760px){.media{grid-template-columns:minmax(0,1fr) minmax(0,1.6fr)}.media--rev{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr)}}
.media img{display:block;margin:0 auto}
.guarantee{display:grid;gap:22px;align-items:center;background:#fff;border:2px solid var(--blue-100);border-radius:var(--radius);padding:24px 22px}
@media(min-width:760px){.guarantee{grid-template-columns:minmax(0,1fr) 180px;padding:32px 36px}}
.guarantee img{display:block;margin:0 auto;max-width:180px}
.privacy-line{display:flex;align-items:center;justify-content:center;gap:8px;font-size:16px;color:var(--muted)}
.privacy-line .bhs-lock{color:var(--blue-700);flex-shrink:0}
.cb-notice{font-size:16px;line-height:1.55;color:var(--muted);border-top:1px solid var(--line);padding-top:18px;margin-top:28px}

/* ---------- tables (stack on phones) ---------- */
table{border-collapse:collapse;width:100%;margin:0 0 1.2em}
.tbl{width:100%;background:#fff;border-radius:var(--radius-sm);overflow:hidden;box-shadow:0 0 0 1px var(--line)}
.tbl th,.tbl td{padding:14px 16px;text-align:left;vertical-align:middle;border-bottom:1px solid var(--line)}
.tbl th{background:var(--blue-700);color:#fff;font:700 16px/1.3 var(--f-head);letter-spacing:.02em}
.tbl tr:last-child td{border-bottom:0}
.tbl .num,.tbl td:last-child{text-align:right;white-space:nowrap}
.tbl .total td{background:var(--blue-50);font-weight:700;color:var(--ink)}
@media(max-width:640px){
  .tbl--stack thead{display:none}
  .tbl--stack tr{display:block;border-bottom:1px solid var(--line);padding:10px 4px}
  .tbl--stack td{display:flex;justify-content:space-between;gap:14px;border:0;padding:6px 12px;text-align:right}
  .tbl--stack td::before{content:attr(data-label);font-weight:700;color:var(--ink);text-align:left}
  .tbl--stack td[data-label=""]::before{content:none}
}
.legal table{display:block;overflow-x:auto}
.legal td,.legal th{border:1px solid var(--line);padding:10px 12px;vertical-align:top}

/* upsell "what you get" list (old .upsell-table with check icons) */
.included{list-style:none;margin:0 0 1.2em;padding:0;border-radius:var(--radius);overflow:hidden;box-shadow:0 0 0 1px var(--line);background:#fff}
.included li{display:grid;grid-template-columns:30px minmax(0,1fr) auto auto;gap:6px 14px;align-items:center;margin:0;padding:14px 18px;border-bottom:1px solid var(--line)}
.included li:last-child{border-bottom:0}
.included .bhs-check{width:26px;height:26px}
.included .nm{font-weight:700;color:var(--ink)}
.included .was{color:var(--muted);white-space:nowrap}
.included .inc{font:700 16px/1 var(--f-head);color:var(--green);white-space:nowrap}
.included .inc.red-txt{color:var(--red)}
.included li.total{background:var(--blue-50)}
.included li.total .nm{font-family:var(--f-head)}
@media(max-width:560px){.included li{grid-template-columns:28px minmax(0,1fr) auto}.included .was{grid-column:2;grid-row:2;font-size:16px}
  .included .inc{grid-column:3;grid-row:1 / span 2}}

/* ---------- order page ---------- */
.bhs-steps{list-style:none;display:flex;justify-content:center;gap:0;margin:0 auto 28px;padding:0;max-width:560px;counter-reset:s}
.bhs-steps li{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;margin:0;position:relative;font:600 16px/1.2 var(--f-head);color:var(--muted)}
.bhs-steps li span:first-child{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#fff;border:2px solid var(--blue-200);color:var(--blue-700);font-weight:800;position:relative;z-index:1}
.bhs-steps li::after{content:"";position:absolute;top:20px;left:50%;width:100%;height:2px;background:var(--blue-200)}
.bhs-steps li:last-child::after{display:none}
.bhs-steps li.is-on{color:var(--ink)}
.bhs-steps li.is-on span:first-child{background:var(--blue-700);border-color:var(--blue-700);color:#fff}
.checklist{width:100%;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin:0 0 28px}
.checklist th{background:var(--navy);color:#fff;font:700 16px/1.3 var(--f-head);text-align:left;padding:14px 16px}
.checklist td{padding:16px;border-bottom:1px solid var(--line);vertical-align:middle;font-weight:500;color:var(--ink)}
.checklist th:first-child,.checklist td:first-child{width:52px;text-align:center;padding-right:0}
.checklist th:last-child,.checklist td:last-child{text-align:right;white-space:nowrap}
.checklist tr.total td{background:var(--blue-50);font:800 19px/1.3 var(--f-head);border-bottom:0}
.checklist .bhs-check{width:26px;height:26px}
.trial{background:#fff;border:3px solid var(--blue);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:28px 22px;margin:0 0 30px;text-align:center}
@media(min-width:900px){.trial{padding:40px 48px}}
.trial h2{color:var(--link)}
.trial img{display:block;margin:10px auto 18px;max-width:min(100%,380px)}
.trial .copy{text-align:left}
.price-line{font:800 clamp(22px,3vw,28px)/1.3 var(--f-head);color:var(--ink);margin:0 0 14px;text-align:center}

/* ---------- forms ---------- */
.field{display:block;width:100%;min-height:54px;padding:14px 16px;border:2px solid var(--line);border-radius:12px;background:#fff;
  font:400 18px/1.4 var(--f-body);color:var(--ink);margin:0 0 14px}
.field:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 4px rgba(46,157,222,.18)}
textarea.field{min-height:150px;resize:vertical}
.form-msg{border-radius:12px;padding:14px 18px;margin:0 0 18px;font-weight:600;text-align:center}
.form-msg--ok{background:#e8f6ee;color:#145c33;border:1px solid #bfe5cd}
.form-msg--err{background:#fdecec;color:#9b1c1c;border:1px solid #f4c2c2}

/* ---------- opt-in / modal ---------- */
.bhs-modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:18px;background:rgba(8,32,52,.72)}
.bhs-modal.is-open{display:flex}
.bhs-modal__box{position:relative;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:100%;max-width:520px;max-height:calc(100vh - 36px);overflow:auto;padding:34px 24px 26px}
@media(min-width:600px){.bhs-modal__box{padding:42px 40px 32px}}
.bhs-modal__x{position:absolute;top:8px;right:8px;width:46px;height:46px;border:0;border-radius:50%;background:var(--blue-50);color:var(--navy);font-size:30px;line-height:1;cursor:pointer}
.bhs-modal__x:hover{background:var(--blue-100)}
.bhs-optin{text-align:center}
.bhs-optin__logo{display:block;margin:0 auto 14px;max-width:210px}
.bhs-optin__h{font:800 clamp(20px,3vw,24px)/1.3 var(--f-head);color:var(--ink);margin:0 0 18px}
.bhs-optin form input[type=text]{display:block;width:100%;min-height:56px;padding:14px 16px;margin:0 0 12px;border:2px solid var(--line);border-radius:12px;font:400 18px/1.4 var(--f-body);color:var(--ink)}
.bhs-optin form input[type=text]:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 4px rgba(46,157,222,.18)}
.opt-in-btn{display:flex;align-items:center;justify-content:center;width:100%;min-height:58px;padding:16px 24px;border-radius:999px;text-decoration:none;
  font:800 19px/1.2 var(--f-head);color:#fff;background:linear-gradient(180deg,#26b466,var(--green));box-shadow:0 8px 20px rgba(31,157,85,.3)}
.opt-in-btn:hover{background:var(--green-dk);color:#fff}
.bhs-optin__privacy{font-size:16px;color:var(--muted);margin:16px 0 0;line-height:1.5}

/* download button (old .dlbutton: big label + sublabel) */
.dlbtn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;width:100%;max-width:560px;margin:0 auto;min-height:72px;padding:18px 28px;
  border-radius:20px;text-decoration:none;color:#fff;background:linear-gradient(180deg,#26b466,var(--green));box-shadow:0 12px 26px rgba(31,157,85,.3);text-align:center}
.dlbtn:hover{background:var(--green-dk);color:#fff}
.dlbtn__main{font:800 clamp(21px,3vw,26px)/1.2 var(--f-head)}
.dlbtn__sub{font:500 16px/1.35 var(--f-body);opacity:.96}

/* hero */
.hero{padding:40px 0 48px}
@media(min-width:900px){.hero{padding:64px 0 72px}}
.hero h1{margin-bottom:.4em}
.hero-img{display:block;margin:0 auto;max-width:min(100%,460px);filter:drop-shadow(0 18px 30px rgba(14,72,110,.18))}

/* image helpers */
.img-c{display:block;margin:0 auto 1.2em}
.img-round{border-radius:var(--radius)}
.img-max-sm{max-width:min(100%,320px)} .img-max-md{max-width:min(100%,480px)} .img-max-lg{max-width:min(100%,680px)}

/* bonus / product blocks */
.bonus{display:grid;gap:20px;align-items:center;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:24px 22px;margin:0 0 22px;border:1px solid #eaf1f7}
@media(min-width:760px){.bonus{grid-template-columns:220px minmax(0,1fr);padding:30px 34px}}
.bonus img{display:block;margin:0 auto;max-width:220px}
.tag{display:inline-block;font:800 16px/1 var(--f-head);color:#fff;background:var(--blue);border-radius:999px;padding:8px 14px;margin:0 0 10px;letter-spacing:.03em}
.tag--red{background:var(--red)}
.letter ul.included li{padding:14px 18px}
.letter ul.included li::before{display:none}