:root{--ink:#14313a;--muted:#57717a;--teal:#0b5968;--teal2:#087f83;--mint:#dff7f0;--sky:#e9f4ff;--coral:#f77c68;--gold:#f5c85b;--cream:#fffaf2;--white:#fff;--line:#d9e7e8;--shadow:0 18px 55px rgba(22,64,74,.12);--radius:24px;--max:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:#fbfdfd;line-height:1.65}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}img,svg{max-width:100%}button,input,select,textarea{font:inherit}.container{width:min(calc(100% - 34px),var(--max));margin:auto}.skip-link{position:absolute;top:-60px;left:10px;background:#fff;padding:10px 14px;z-index:999}.skip-link:focus{top:10px}.safety-strip{background:#12323b;color:#fff;font-size:.85rem;padding:7px 0}.safety-strip strong{color:#ffd889}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(16px);border-bottom:1px solid rgba(18,50,59,.08)}.header-inner{min-height:78px;display:flex;align-items:center;gap:26px}.brand{display:flex;align-items:center;gap:11px;color:var(--ink);min-width:max-content}.brand:hover{text-decoration:none}.brand-mark{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,var(--teal),var(--teal2));position:relative;box-shadow:0 8px 20px rgba(8,127,131,.24)}.brand-mark span:first-child,.brand-mark span:last-child{position:absolute;background:white;border-radius:4px}.brand-mark span:first-child{width:24px;height:8px;left:10px;top:18px}.brand-mark span:last-child{width:8px;height:24px;left:18px;top:10px}.brand-type{display:flex;flex-direction:column;line-height:1}.brand-type strong{font-size:1rem;letter-spacing:-.02em}.brand-type em{font-style:normal;font-size:.82rem;color:var(--coral);font-weight:800;text-transform:uppercase;letter-spacing:.16em;margin-top:5px}.site-nav{display:flex;align-items:center;justify-content:center;gap:20px;margin-left:auto}.site-nav a{font-size:.9rem;font-weight:700;color:#35545d;padding:28px 0 24px;border-bottom:3px solid transparent}.site-nav a.active{color:var(--teal);border-color:var(--coral)}.search-button,.nav-toggle{border:0;background:none;cursor:pointer}.search-button{background:var(--mint);border-radius:999px;padding:10px 15px;color:var(--teal);font-weight:800}.nav-toggle{display:none}.hero{position:relative;overflow:hidden;padding:72px 0 64px;background:linear-gradient(135deg,#eefaf7 0%,#fffaf2 52%,#eef6ff 100%)}.hero:before{content:"";position:absolute;width:420px;height:420px;border:70px solid rgba(8,127,131,.06);border-radius:50%;right:-140px;top:-180px}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:54px}.eyebrow{font-size:.77rem;text-transform:uppercase;letter-spacing:.16em;font-weight:900;color:var(--teal2);margin:0 0 12px}.hero h1,.page-hero h1{font-family:Georgia,serif;font-size:clamp(2.7rem,6vw,5.5rem);line-height:.98;letter-spacing:-.045em;margin:0 0 22px;color:#103943}.hero h1 em{font-style:normal;color:var(--coral)}.hero .lead,.page-hero .lead{font-size:1.18rem;color:#42626b;max-width:740px}.hero-actions,.button-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 20px;border-radius:999px;background:var(--teal);color:#fff;font-weight:800;border:2px solid var(--teal);cursor:pointer}.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn.secondary{background:white;color:var(--teal)}.btn.coral{background:var(--coral);border-color:var(--coral)}.trust-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:25px;font-size:.85rem;color:#527078}.trust-row span{background:rgba(255,255,255,.75);border:1px solid var(--line);padding:7px 11px;border-radius:999px}.hero-visual{position:relative;min-height:500px}.body-orbit{position:absolute;inset:0;background:radial-gradient(circle at center,rgba(8,127,131,.12),transparent 58%);border-radius:50%}.human-figure{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:210px;height:390px}.human-figure .head{position:absolute;width:76px;height:76px;border-radius:50%;left:67px;top:0;background:linear-gradient(160deg,#0b5968,#15999a)}.human-figure .torso{position:absolute;width:134px;height:190px;border-radius:58px 58px 42px 42px;left:38px;top:79px;background:linear-gradient(160deg,#0b5968,#15999a)}.human-figure .arm,.human-figure .leg{position:absolute;background:#0f7880;border-radius:999px}.human-figure .arm{width:28px;height:180px;top:92px}.human-figure .arm.left{left:4px;transform:rotate(8deg)}.human-figure .arm.right{right:4px;transform:rotate(-8deg)}.human-figure .leg{width:44px;height:150px;top:250px}.human-figure .leg.left{left:53px}.human-figure .leg.right{right:53px}.organ{position:absolute;z-index:2;filter:drop-shadow(0 7px 8px rgba(0,0,0,.16));font-size:38px}.organ.brain{top:17px;left:84px;font-size:30px}.organ.heart{top:130px;left:100px}.organ.lungs{top:112px;left:52px;font-size:64px;opacity:.92}.organ.stomach{top:194px;left:92px}.orbit-card{position:absolute;background:white;border:1px solid var(--line);border-radius:18px;padding:14px 16px;box-shadow:var(--shadow);font-size:.88rem}.orbit-card strong{display:block;color:var(--teal);font-size:.96rem}.orbit-card.one{left:0;top:50px}.orbit-card.two{right:0;top:115px}.orbit-card.three{left:10px;bottom:50px}.orbit-card.four{right:20px;bottom:15px}.section{padding:76px 0}.section.alt{background:#f1f8f7}.section.dark{background:#12323b;color:#eaf7f5}.section.dark h2,.section.dark h3{color:#fff}.section-heading{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}.section-heading h2{font-family:Georgia,serif;font-size:clamp(2rem,4vw,3.6rem);line-height:1.05;margin:0;letter-spacing:-.035em}.section-heading p{max-width:560px;margin:0;color:var(--muted)}.grid{display:grid;gap:20px}.grid.two{grid-template-columns:repeat(2,1fr)}.grid.three{grid-template-columns:repeat(3,1fr)}.grid.four{grid-template-columns:repeat(4,1fr)}.topic-card,.panel,.source-card,.guide-card{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:25px;box-shadow:0 8px 26px rgba(15,64,75,.05);position:relative}.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);text-decoration:none}.topic-icon{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;font-size:1.6rem;background:var(--mint);margin-bottom:18px}.topic-card:nth-child(3n+2) .topic-icon{background:var(--sky)}.topic-card:nth-child(3n+3) .topic-icon{background:#fff0e9}.topic-card h3,.panel h3,.source-card h3,.guide-card h3{margin:0 0 8px;font-size:1.15rem;color:var(--ink)}.topic-card p,.panel p,.source-card p,.guide-card p{margin:0;color:var(--muted)}.topic-card .arrow{display:inline-block;margin-top:16px;font-weight:900;color:var(--coral)}.emergency-box{border-left:5px solid var(--coral);background:#fff4ef;padding:22px;border-radius:0 18px 18px 0}.emergency-box h3{margin-top:0}.quick-search{background:white;border-radius:22px;padding:12px;box-shadow:var(--shadow);display:flex;gap:10px;margin-top:30px;border:1px solid var(--line)}.quick-search input{border:0;outline:0;flex:1;padding:8px 12px;min-width:0}.quick-search button{border:0;border-radius:14px;background:var(--teal);color:white;font-weight:800;padding:12px 18px;cursor:pointer}.stats-band{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-radius:24px;overflow:hidden;border:1px solid var(--line)}.stat{background:white;padding:24px}.stat strong{display:block;font-family:Georgia,serif;font-size:1.8rem;color:var(--teal)}.stat span{font-size:.87rem;color:var(--muted)}.page-hero{padding:58px 0 46px;background:linear-gradient(135deg,#eff9f7,#fffaf2)}.page-hero h1{font-size:clamp(2.7rem,5vw,4.8rem)}.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:.82rem;color:#668087;margin-bottom:20px}.breadcrumbs a{color:#527078}.content-wrap{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:40px;align-items:start}.sidebar{position:sticky;top:110px}.side-card{background:white;border:1px solid var(--line);border-radius:20px;padding:20px;margin-bottom:16px}.side-card h3{margin:0 0 10px}.side-card a{display:block;padding:7px 0;border-bottom:1px solid #edf2f2}.side-card a:last-child{border:0}.article h2{font-family:Georgia,serif;font-size:2rem;margin-top:42px;line-height:1.1}.article h3{margin-top:28px}.article p,.article li{color:#3e5b64}.callout{background:var(--mint);border-radius:20px;padding:22px;margin:26px 0}.callout.warning{background:#fff1eb}.callout.info{background:var(--sky)}.callout 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p{font-size:.88rem;margin:0;color:var(--muted)}.tag{display:inline-block;background:var(--mint);color:var(--teal);border-radius:999px;padding:4px 8px;font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;font-weight:900;margin-bottom:10px}.symptom-card button,.accordion-button{width:100%;border:0;background:none;text-align:left;padding:0;cursor:pointer;color:var(--ink)}.accordion-panel{display:none;padding-top:15px}.accordion-panel.open{display:block}.symptom-card .chev{float:right;font-size:1.2rem;color:var(--coral)}.body-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.body-tabs button{border:1px solid var(--line);background:white;border-radius:999px;padding:10px 14px;font-weight:800;color:var(--teal);cursor:pointer}.body-tabs button.active{background:var(--teal);color:white}.body-panel{display:none}.body-panel.active{display:grid}.tool-shell{background:white;border:1px solid var(--line);border-radius:26px;padding:26px}.tool-result{margin-top:16px;border-radius:16px;padding:16px;background:#eef8f6;min-height:58px}.quiz-option{display:block;border:1px solid var(--line);border-radius:14px;padding:12px;margin:8px 0;cursor:pointer}.quiz-option:hover{background:var(--mint)}.progress{height:9px;border-radius:999px;background:#e7eeee;overflow:hidden}.progress span{display:block;height:100%;width:0;background:var(--teal2);transition:.3s}.breath-circle{width:180px;height:180px;margin:20px auto;border-radius:50%;display:grid;place-items:center;background:radial-gradient(circle,#f9ffff,var(--mint));border:3px solid var(--teal2);transition:transform 4s ease-in-out;font-weight:900;color:var(--teal)}.breath-circle.expand{transform:scale(1.28)}.source-seal{font-size:.68rem;font-weight:900;text-transform:uppercase;letter-spacing:.1em;color:var(--teal2)}.source-card a{display:inline-block;margin-top:14px;font-weight:800}.checklist label{display:flex;gap:10px;padding:10px 0;border-bottom:1px solid #edf2f2}.checklist input{margin-top:6px}.search-overlay{position:fixed;inset:0;background:rgba(10,31,37,.74);z-index:100;display:grid;place-items:start center;padding:10vh 18px}.search-overlay[hidden]{display:none}.search-dialog{position:relative;width:min(780px,100%);background:white;border-radius:28px;padding:35px;box-shadow:0 30px 90px rgba(0,0,0,.28)}.search-close{position:absolute;right:18px;top:13px;border:0;background:none;font-size:2rem;cursor:pointer}.search-field input{width:100%;font-size:1.1rem;border:2px solid #c9dfe0;border-radius:16px;padding:16px}.search-results{display:grid;gap:10px;margin-top:16px;max-height:45vh;overflow:auto}.search-result{display:flex;justify-content:space-between;gap:15px;border:1px solid var(--line);border-radius:14px;padding:14px}.search-result:hover{background:var(--mint);text-decoration:none}.search-result small{color:var(--muted)}.site-footer{background:#102f37;color:#d9e7e7;padding:55px 0 20px}.footer-grid{display:grid;grid-template-columns:1.4fr .7fr .7fr 1fr;gap:38px}.site-footer .brand-type strong{color:#fff}.site-footer p{color:#b9cdcf}.site-footer h3{color:#fff;font-size:.9rem;text-transform:uppercase;letter-spacing:.12em}.site-footer a{display:block;color:#dff7f0;padding:5px 0}.site-footer .brand{margin-bottom:18px}.footer-cta{font-weight:900;color:#ffd889!important}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:35px;padding-top:18px;display:flex;justify-content:space-between;color:#9db4b7;font-size:.8rem}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-grid .full{grid-column:1/-1}.form-control{width:100%}textarea.form-control{min-height:150px}.notice{font-size:.86rem;color:var(--muted)}.print-only{display:none}.quote{font-family:Georgia,serif;font-size:1.45rem;line-height:1.35;border-left:4px solid var(--gold);padding-left:20px;color:#244b55}.timeline{border-left:3px solid var(--line);padding-left:25px}.timeline article{position:relative;margin-bottom:25px}.timeline article:before{content:"";position:absolute;width:15px;height:15px;border-radius:50%;background:var(--coral);left:-34px;top:5px}.metric{font-size:2.1rem;font-family:Georgia,serif;color:var(--teal)}.sticky-action{position:fixed;right:18px;bottom:18px;z-index:20;background:var(--coral);color:white;padding:12px 18px;border-radius:999px;font-weight:900;box-shadow:var(--shadow)}.sticky-action:hover{text-decoration:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:980px){.nav-toggle{display:block;margin-left:auto;width:42px;height:42px}.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px}.site-nav{position:absolute;left:0;right:0;top:78px;display:none;background:white;border-bottom:1px solid var(--line);padding:12px 20px 22px;flex-direction:column;align-items:stretch}.site-nav.open{display:flex}.site-nav a{padding:11px 0;border-bottom:1px solid #edf2f2}.search-button span{display:none}.hero-grid,.content-wrap{grid-template-columns:1fr}.hero-visual{min-height:450px}.sidebar{position:static}.grid.four{grid-template-columns:repeat(2,1fr)}.condition-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.hero{padding-top:48px}.hero h1{font-size:3.1rem}.hero-grid{gap:20px}.hero-visual{min-height:420px;transform:scale(.9)}.grid.two,.grid.three,.grid.four,.condition-grid,.stats-band,.form-grid{grid-template-columns:1fr}.section{padding:54px 0}.section-heading{display:block}.section-heading p{margin-top:12px}.orbit-card{font-size:.75rem;padding:10px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.page-hero h1{font-size:2.8rem}.quick-search{display:block}.quick-search button{width:100%;margin-top:8px}.header-inner{min-height:70px}.site-nav{top:70px}.brand-mark{width:38px;height:38px}.brand-mark span:first-child{width:22px;left:8px;top:15px}.brand-mark span:last-child{height:22px;left:15px;top:8px}.brand-type strong{font-size:.9rem}.sticky-action{font-size:.8rem}}
@media print{.site-header,.safety-strip,.site-footer,.sidebar,.sticky-action,.button-row,.search-overlay{display:none!important}.print-only{display:block}body{background:white}.section{padding:20px 0}.content-wrap{display:block}.article{font-size:11pt}.page-hero{padding:20px 0;background:white}}