/* ============================================================
Cassia Vitality — Brand design system (white / blue / sage)
Concept-C era · established 2026
Wordmark: "Cassia" (ink) + "Vitality" (blue accent .bx)
============================================================ */
:root{
--ink:#16202A; --ink-soft:#4C5A67; --ink-faint:#5E6B7A;
--paper:#FFFFFF; --mist:#F5F7F8; --mist-2:#EEF2F4;
--line:#E4E9ED; --line-2:#D7DEE4;
--blue:#1F4E8F; --blue-bright:#2E73C8; --blue-deep:#173B6B; --blue-tint:#EAF1FA;
--sage:#6E8C68; --sage-deep:#4E6B49; --sage-tint:#EDF2EC;
--r:18px; --r-sm:12px; --r-lg:26px;
--shadow:0 18px 50px -24px rgba(20,40,70,.30);
--shadow-sm:0 6px 20px -12px rgba(20,40,70,.25);
--wrap:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;overflow-x:clip;background:var(--paper);color:var(--ink);
font-family:'Plus Jakarta Sans',system-ui,-apple-system,sans-serif;
font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.08}
h1{font-size:clamp(38px,5vw,60px)}
h2{font-size:clamp(28px,3.6vw,43px)}
h3{font-size:21px;letter-spacing:-.01em}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
section{padding:86px 0}
@media(max-width:760px){section{padding:60px 0}}
.eyebrow{font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.15em;
text-transform:uppercase;color:var(--blue-bright);font-weight:500}
.lede{font-size:clamp(17px,1.4vw,19.5px);color:var(--ink-soft);line-height:1.62}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 24px;border-radius:100px;
font-weight:600;font-size:15.5px;text-decoration:none;border:1.5px solid transparent;
cursor:pointer;transition:transform .15s ease,box-shadow .2s ease,background .2s ease,border-color .2s}
.btn svg{width:17px;height:17px}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-deep);transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(31,78,143,.6)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-tint)}
.btn-sage{background:var(--sage-deep);color:#fff}
.btn-sage:hover{background:#3e5a3a;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--blue)}
.btn-light:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm)}
/* outline button for dark or photographic grounds (hero secondary, dark bands) */
.btn-clear{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-clear:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-1px)}
/* nav */
nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);
backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px;gap:24px}
.brand{display:flex;align-items:center;gap:0;text-decoration:none;font-weight:700;font-size:21px;letter-spacing:-.02em;color:var(--ink);flex:none}
.brand .bx{color:var(--blue);margin-left:.32em}
.brand svg{height:30px;width:auto;margin-right:10px}
.nav-links{display:flex;align-items:center;gap:26px;font-size:15px;font-weight:500}
.nav-links a{text-decoration:none;color:var(--ink-soft);transition:color .15s}
.nav-links a:hover{color:var(--blue)}
.nav-links .switch{font-family:'JetBrains Mono',monospace;font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-faint)}
.nav-links .switch:hover{color:var(--sage-deep)}
.nav-cta{display:flex;align-items:center;gap:12px;flex:none}
@media(max-width:920px){.nav-links{display:none}}
/* <=560: the nav CTA survives as a 44px "Reserve" pill (markup: Reserve a seat);
the brand drops its mark and the h1 floor drops to 32px so the hero CTA lands inside a 375x812 viewport (T3, 2026-09-10) */
@media(max-width:640px){.nav-cta .cta-tail{display:none}} /* the full label needs ~600px of nav row */
@media(max-width:560px){
.nav{gap:12px}
.brand{font-size:19px}
.brand svg{display:none}
.nav-cta .btn{min-height:44px;padding:0 14px;font-size:14px;line-height:1}
h1{font-size:clamp(32px,9vw,38px)}
}
/* mobile nav — disclosure pattern (button[aria-expanded] + .nav-links.open) */
.nav-toggle{display:none;margin-left:auto;flex:none;align-items:center;justify-content:center;
width:44px;height:44px;padding:0;border:1.5px solid var(--line-2);border-radius:var(--r-sm);
background:var(--paper);color:var(--ink);cursor:pointer;transition:border-color .15s,color .15s}
.nav-toggle:hover{border-color:var(--blue);color:var(--blue)}
.nav-toggle svg{width:22px;height:22px}
.nav-toggle .ic-close{display:none}
.nav-toggle[aria-expanded="true"] .ic-open{display:none}
.nav-toggle[aria-expanded="true"] .ic-close{display:block}
.nav-links .mobile-only{display:none}
@media(max-width:920px){
.nav-toggle{display:inline-flex}
.nav-links.open{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;
align-items:stretch;gap:0;background:var(--paper);border-bottom:1px solid var(--line);
box-shadow:var(--shadow-sm);padding:6px 28px 14px}
.nav-links.open a{padding:14px 2px;border-top:1px solid var(--line);font-size:16px}
.nav-links.open .mobile-only{display:block}
}
.pill{display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:100px;
font-size:13px;font-weight:600;background:var(--sage-tint);color:var(--sage-deep)}
.pill.blue{background:var(--blue-tint);color:var(--blue)}
.soon{font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.08em;text-transform:uppercase;
color:var(--sage-deep);background:var(--sage-tint);padding:4px 9px;border-radius:7px;font-weight:500}
/* generic card */
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .25s ease,border-color .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-2)}
/* section heads */
.sec-head{max-width:46rem}
.sec-head.center{margin:0 auto;text-align:center}
.sec-head h2{margin-top:13px}
.sec-head p{margin-top:15px}
/* footer */
footer{background:var(--ink);color:#C7D2DC;padding:64px 0 30px}
footer .brand{color:#fff}footer .brand .bx{color:#9CC0EC}
footer a{color:#AEBCC7;text-decoration:none;font-size:14.5px;transition:color .15s}
footer a:hover{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.foot-grid.cols-5{grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:28px}
.foot-col h5{font-size:12px;font-family:'JetBrains Mono',monospace;letter-spacing:.1em;text-transform:uppercase;color:#7E8FA0;margin:0 0 14px}
.foot-col a{display:block;margin-bottom:10px}
.foot-note{margin-top:46px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:12.5px;color:#7E8FA0}
@media(max-width:820px){.foot-grid,.foot-grid.cols-5{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid,.foot-grid.cols-5{grid-template-columns:1fr}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
/* skip links (focusable sr-only anchors) become visible on keyboard focus */
a.sr-only:focus{position:fixed;top:10px;left:10px;z-index:100;width:auto;height:auto;clip:auto;
margin:0;padding:12px 18px;background:var(--paper);color:var(--blue);border:1.5px solid var(--blue);
border-radius:var(--r-sm);font-weight:600;text-decoration:none}
/* ============================================================
Waitlist / lead-capture (Phase 1A)
============================================================ */
.waitlist{background:var(--mist)}
.waitlist .wrap{max-width:760px}
.waitlist .sec-head{margin:0 auto;text-align:center}
.wl-card{margin-top:30px;background:var(--paper);border:1px solid var(--line);
border-radius:var(--r-lg);box-shadow:var(--shadow-sm);padding:34px 34px 30px}
@media(max-width:560px){.wl-card{padding:26px 22px 24px}}
.wl-form{display:flex;flex-direction:column;gap:16px}
.wl-row{display:flex;gap:14px;flex-wrap:wrap}
.wl-field{flex:1;min-width:200px;display:flex;flex-direction:column;gap:7px}
.wl-field label{font-size:13.5px;font-weight:600;color:var(--ink-soft)}
.wl-field label .req{color:var(--blue);font-weight:700}
.wl-input{width:100%;padding:13px 15px;border:1.5px solid var(--line-2);border-radius:var(--r-sm);
font-family:inherit;font-size:16px;color:var(--ink);background:#fff;transition:border-color .15s,box-shadow .15s}
.wl-input::placeholder{color:var(--ink-faint)}
.wl-input:focus{outline:none;border-color:var(--blue-bright);box-shadow:0 0 0 3px var(--blue-tint)}
.wl-input[aria-invalid="true"]{border-color:#C0413B;box-shadow:0 0 0 3px rgba(192,65,59,.12)}
.wl-consent{display:flex;align-items:flex-start;gap:11px;font-size:14px;color:var(--ink-soft);line-height:1.5}
.wl-consent input[type="checkbox"]{flex:none;width:19px;height:19px;margin-top:2px;accent-color:var(--blue);cursor:pointer}
.wl-consent a{color:var(--blue);font-weight:600;text-decoration:underline;text-underline-offset:2px}
.wl-consent label{cursor:pointer}
.wl-submit{align-self:flex-start;border:none}
@media(max-width:560px){.wl-submit{align-self:stretch;justify-content:center}}
.wl-error{font-size:13.5px;color:#C0413B;font-weight:600;min-height:1px}
.wl-error:empty{display:none}
.wl-handoff{margin:12px 0 0;font-size:14px;line-height:1.55;color:var(--ink-soft)}
.wl-handoff:empty{display:none}
.wl-handoff a{color:var(--blue);font-weight:600}
.wl-note{margin-top:14px;font-size:12.5px;color:var(--ink-faint);line-height:1.5}
.wl-success{display:none;flex-direction:column;align-items:center;text-align:center;gap:14px;padding:8px 4px}
.wl-success.show{display:flex}
.wl-form.hide{display:none}
.wl-success .tick{width:58px;height:58px;border-radius:50%;background:var(--sage-tint);
display:flex;align-items:center;justify-content:center}
.wl-success .tick svg{width:30px;height:30px;color:var(--sage-deep)}
.wl-success h3{font-size:22px;color:var(--ink)}
.wl-success p{color:var(--ink-soft);font-size:15px;max-width:34em}
/* Membership teaser (no claims) */
.vitals-teaser .inner{background:var(--ink);color:#C7D2DC;border-radius:var(--r-lg);
padding:38px 40px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.vitals-teaser .eyebrow{color:#AECBA7}
.vitals-teaser h3{color:#fff;font-size:25px;margin-top:11px}
.vitals-teaser p{color:#AEBCC7;font-size:15px;margin-top:9px;max-width:38em}
.vitals-teaser .soon{margin-bottom:4px;display:inline-block}
@media(max-width:620px){.vitals-teaser .inner{padding:30px 24px}}
/* Legal pages (privacy / terms) */
.legal-draft-banner{background:#FBEFD6;border-bottom:1px solid #EAD9AE;color:#7A5A1E;
font-size:13.5px;font-weight:600;text-align:center;padding:12px 20px}
.legal-draft-banner b{font-family:'JetBrains Mono',monospace;letter-spacing:.04em}
.legal{max-width:820px}
.legal h1{margin-bottom:10px}
.legal .updated{font-family:'JetBrains Mono',monospace;font-size:12.5px;color:var(--ink-faint);
letter-spacing:.03em;margin-bottom:6px}
.legal h2{font-size:24px;margin-top:40px}
.legal h3{margin-top:26px;font-size:18px}
.legal p,.legal li{color:var(--ink-soft);margin-top:12px;line-height:1.7}
.legal ul{margin-top:12px;padding-left:22px}
.legal li{margin-top:8px}
.legal a{color:var(--blue);font-weight:600}
/* .legal a (0,1,1) outweighs .btn-primary (0,1,0): without this guard, solid-fill
buttons inside .legal render blue-on-blue — invisible text on crisis.html's
Call 988 / Call 911. Found by computed-style probe 2026-08-28. */
.legal a.btn-primary,.legal a.btn-sage{color:#fff}
/* ============================================================
Compatibility layer — migrated pages (platform / builders /
medical) that carry their own page-specific