/* Sleep Epidemiology Foundation, 2026. Visual system adapted from Sleep-EVAL. */
:root{--ink:#18324a;--text:#243746;--muted:#536779;--burgundy:#7a2434;--burgundy-dark:#5f1b28;--gold:#c7a45b;--blue:#2f5f87;--bg:#f5f7fa;--line:#dce4eb;--soft:#edf3f7;--max:1160px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--text);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;font-size:1rem;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-underline-offset:.2em}
a:hover{color:var(--burgundy)}
a:focus-visible,button:focus-visible{outline:3px solid #d6aa43;outline-offset:4px}
img{max-width:100%;height:auto}
button{font:inherit}
.container{width:min(var(--max),calc(100% - 64px));margin-inline:auto}
.skip-link{position:absolute;top:12px;left:12px;transform:translateY(-180%);z-index:100;background:#fff;padding:10px 18px;color:var(--ink)}
.skip-link:focus{transform:none}
.masthead{background:linear-gradient(118deg,var(--burgundy-dark),var(--burgundy) 46%,#274f70);color:#fff}
.masthead-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding-block:24px}
.brand{display:flex;align-items:center;gap:24px;color:#fff;text-decoration:none;min-width:0}
.brand:hover{color:#fff}
.brand img{width:126px;flex-shrink:0}
.brand-title{display:block;font-family:Georgia,"Times New Roman",serif;font-weight:700;font-size:2rem;line-height:1.1;letter-spacing:.01em}
.brand-subtitle{display:block;margin-top:11px;color:#f2dca9;font-size:.875rem;line-height:1.5;letter-spacing:.025em}
.related{display:flex;flex-direction:column;text-align:right;gap:3px;flex-shrink:0;font-size:.875rem}
.related span{color:#f2dca9;font-weight:600;margin-bottom:3px}
.related a{color:#fff;text-decoration:none}
.related a:hover{text-decoration:underline}
.nav-primary{background:#162f46}
.nav-primary nav{display:flex;flex-wrap:wrap;gap:0 12px}
.nav-primary a{display:block;color:#f3f6f8;font-size:.9375rem;font-weight:600;text-decoration:none;padding:13px 17px}
.nav-primary a:hover,.nav-primary a[aria-current]{background:rgba(255,255,255,.12);color:#fff}
.nav-secondary{background:#fff;border-bottom:1px solid var(--line)}
.nav-secondary .container{display:flex;flex-wrap:wrap;gap:0 18px;padding-top:8px}
.nav-secondary a{color:var(--muted);padding:9px 12px 11px;font-size:.875rem;font-weight:600;text-decoration:none;border-bottom:3px solid transparent}
.nav-secondary a:hover{color:var(--burgundy)}
.nav-secondary a[aria-current]{color:var(--burgundy);border-color:var(--burgundy);background:var(--soft);border-radius:7px 7px 0 0}
.menu-toggle{min-height:46px;line-height:1.5;color:#fff;background:none;border:1px solid #6c8090;border-radius:6px;width:100%;padding:9px 13px;text-align:left}
.menu-toggle span{float:right}
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#183850,#234f68 52%,#7a2434);color:#fff;padding-block:68px 64px}
.hero::after{content:"";position:absolute;right:-160px;top:-170px;width:500px;height:500px;border:1px solid rgba(255,255,255,.13);border-radius:50%;box-shadow:0 0 0 70px rgba(255,255,255,.035),0 0 0 140px rgba(255,255,255,.02);pointer-events:none}
.hero-content{position:relative;z-index:1}
.eyebrow{color:#f0d79b;text-transform:uppercase;letter-spacing:.14em;font-weight:700;font-size:.875rem;margin:0 0 17px}
h1{font-size:clamp(2.4rem,4.4vw,3.7rem);line-height:1.1;letter-spacing:-.035em;margin:0 0 22px;max-width:1000px;font-weight:750}
h1 span{color:#f1dca9}
.hero-lead{max-width:860px;font-size:1.2rem;line-height:1.6;color:#f0f4f7;margin:0}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 19px;border-radius:8px;font-size:.9375rem;font-weight:700;line-height:1.5;text-decoration:none;border:1px solid transparent;transition:background-color .15s}
.button-light{background:#fff;color:var(--ink)}
.button-light:hover{background:#edf3f7;color:var(--ink)}
.button-outline{color:#fff;border-color:#bcc9d2}
.button-outline:hover{background:rgba(255,255,255,.09);color:#fff}
.button-dark{background:var(--ink);color:#fff}
.button-dark:hover{background:var(--burgundy);color:#fff}
.hero-inner-page{padding-block:52px}
.hero-inner-page h1{font-size:clamp(2.25rem,3.8vw,3.1rem)}
.priority-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;padding-block:30px}
.priority-strip>div{background:#fff;border-left:3px solid var(--gold);border-radius:8px;padding:16px 18px}
.priority-strip strong{display:block;color:var(--ink);font-size:1rem;line-height:1.4;margin-bottom:7px}
.priority-strip span{display:block;color:var(--muted);font-size:.875rem;line-height:1.55}
.section{padding-block:52px}
.section-white{background:#fff;border-block:1px solid var(--line)}
.section-heading{margin-bottom:26px}
.kicker{color:var(--burgundy);font-size:.875rem;letter-spacing:.1em;text-transform:uppercase;font-weight:750;margin:0 0 10px}
h2{color:var(--ink);font-size:clamp(1.65rem,2.7vw,2rem);line-height:1.25;letter-spacing:-.025em;margin:0 0 18px}
h3{color:var(--ink);font-size:1.2rem;line-height:1.4;margin:0 0 13px}
p{margin:0 0 17px}
p:last-child{margin-bottom:0}
.section-lead{font-size:1.125rem;max-width:920px;color:var(--muted);margin-bottom:26px}
.split{display:grid;grid-template-columns:1.35fr 1fr;gap:42px;align-items:start}
.prose{font-size:1.0625rem;color:var(--text)}
.prose.wide{max-width:900px}
.statement{padding:27px 30px;background:var(--soft);border-left:4px solid var(--gold);border-radius:0 12px 12px 0}
.statement>p:not(.kicker){color:var(--ink);font-size:1.25rem;line-height:1.6}
.statement ul{margin:10px 0 0;padding-left:20px}
.statement li{margin:0 0 8px}
.statement li:last-child{margin:0}
.statement.inline{margin-top:30px;max-width:940px}
.statement.inline p{font-size:1rem}
.cards{display:grid;gap:20px}
.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{padding:26px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--gold);border-radius:12px;box-shadow:0 8px 24px rgba(28,55,78,.04);display:flex;flex-direction:column;align-items:flex-start}
.card-label{color:var(--burgundy);text-transform:uppercase;letter-spacing:.085em;font-size:.875rem;line-height:1.4;font-weight:750;margin:0 0 13px}
.card p:not(.card-label){color:var(--muted)}
.text-link{display:inline-block;font-size:1rem;font-weight:650;text-decoration:underline}
.card .text-link{margin-top:auto;padding-top:22px}
.section-link{margin-top:27px}
.resource-links{display:flex;flex-wrap:wrap;gap:14px 28px;margin-top:27px}
.resource-links a{font-weight:650}
.callout{padding:30px 32px;background:var(--soft);border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:space-between;gap:30px;margin-top:30px}
.callout h2{font-size:1.5rem;margin-bottom:9px}
.callout p{max-width:720px;color:var(--muted)}
.callout .button{flex-shrink:0}
.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-card{padding:32px;background:var(--soft);border-left:4px solid var(--gold);border-radius:0 12px 12px 0}
.email{display:inline-block;font-size:clamp(1.2rem,2vw,1.7rem);font-weight:700;margin-bottom:12px;overflow-wrap:anywhere}
.contact-card .button{margin-top:10px}
.site-footer{background:#142d43;color:#d8e1e7;padding-block:35px 24px}
.footer-top{display:flex;justify-content:space-between;gap:25px;padding-bottom:25px}
.footer-top strong{font-family:Georgia,"Times New Roman",serif;font-size:1.375rem;color:#fff}
.footer-top p{font-size:.9375rem;margin-top:10px;color:#d2dce3}
.footer-top nav{display:flex;flex-wrap:wrap;align-content:start;gap:12px 24px}
.site-footer a{color:#fff;font-size:.9375rem}
.footer-bottom{border-top:1px solid #3c5265;padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:.875rem}
.footer-bottom p{margin:0}
@media(min-width:761px){.menu-toggle{display:none!important}}
@media(max-width:1000px){.related{display:none}.nav-primary nav{gap:0}.nav-primary a{padding-inline:15px}.nav-secondary .container{gap:0 8px}.split{gap:28px;grid-template-columns:1.2fr 1fr}.callout{align-items:flex-start;flex-direction:column}}
@media(max-width:760px){.container{width:calc(100% - 40px)}.masthead-inner{padding-block:20px}.brand{gap:18px}.brand img{width:87px}.brand-title{font-size:1.6rem}.brand-subtitle{font-size:.875rem;margin-top:8px;max-width:290px}.nav-primary .container{padding-block:10px}.nav-primary nav{display:flex;flex-direction:column;padding-top:5px}.js .nav-primary nav[data-collapsed="true"]{display:none}.nav-primary a{padding:10px 13px}.nav-secondary .container{padding-top:2px;gap:0 5px}.nav-secondary a{font-size:.875rem;padding:9px 7px}.hero,.hero-inner-page{padding-block:42px}.hero-lead{font-size:1.0625rem}.eyebrow{letter-spacing:.09em;font-size:.875rem}.priority-strip{grid-template-columns:repeat(2,minmax(0,1fr));padding-block:24px}.section{padding-block:38px}.split,.cols-2,.cols-3,.contact-layout{grid-template-columns:1fr;gap:22px}.statement,.card{padding:24px}.callout{padding:24px}.footer-top{flex-direction:column}.footer-top nav{gap:12px 22px}.contact-card{padding:25px}}
@media(max-width:440px){.brand{gap:12px}.brand img{width:66px}.brand-title{font-size:1.34rem}.brand-subtitle{font-size:.875rem;line-height:1.5}.priority-strip{grid-template-columns:1fr}.hero h1{font-size:2.2rem}.actions .button{width:100%}.nav-secondary a{padding-inline:6px}.section-heading{margin-bottom:22px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{.site-header,.site-footer,.actions{display:none}.hero{background:none;color:var(--ink);padding:20px 0}.hero h1,.hero h1 span,.hero-lead,.eyebrow{color:var(--ink)}.hero::after{display:none}.container{width:100%}.section{padding-block:20px}.card{box-shadow:none;break-inside:avoid}}