:root{
  --sea-900:#04342C; --sea-800:#085041; --sea-600:#0F6E56; --sea-400:#1D9E75;
  --sea-100:#9FE1CB; --sea-50:#E1F5EE;
  --sand-50:#FAF7F0; --sand-100:#F3ECD9; --sand-300:#E4D6B0;
  --clay-600:#993C1D; --clay-100:#F5C4B3;
  --ink:#22281F; --ink-soft:#4B5147; --line:#DDD6C4; --white:#FFFFFF; --radius:10px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:"Open Sans", serif; background:var(--sand-50);color:var(--ink);line-height:1.65;}
a{color:var(--sea-600);}
a:hover{color:var(--sea-800);} 
img{max-width:100%;display:block;}
.wrap{max-width:1000px;margin:0 auto;padding:0 1.5rem;}

/* ---- top nav ---- */
.zk-nav{position:sticky;top:0;z-index:50;background:var(--sea-900);color:var(--white);}
.zk-nav-inner{position:relative;max-width:1100px;margin:0 auto;padding:8px 1.25rem;display:flex;align-items:center;justify-content:space-between;min-height:60px;}
.zk-brand{flex-shrink:0;font-family:"Open Sans", sans-serif;font-weight:700;font-size:14px;letter-spacing:.03em;color:var(--white);text-decoration:none;display:flex;align-items:center;}
.zk-brand span{color:var(--sea-100);font-weight:400;}
.zk-brand-logo{background:var(--white);border-radius:8px;padding:5px 10px;height:54px;width:auto;max-width:none;flex-shrink:0;display:block;}
.zk-navlinks{display:flex;gap:2px;overflow-x:auto;}
.zk-navlinks a{font-family:"Open Sans", sans-serif;font-size:12.5px;font-weight:600;color:var(--sea-50);text-decoration:none;padding:8px 10px;border-radius:6px;white-space:nowrap;}
.zk-navlinks a:hover{background:rgba(255,255,255,.08);color:var(--white);}

/* ---- mobile nav toggle ---- */
.zk-nav-toggle{display:none;flex-shrink:0;width:40px;height:40px;padding:0;border:0;background:transparent;cursor:pointer;position:relative;}
.zk-nav-toggle span{position:absolute;left:8px;right:8px;height:2px;background:var(--white);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.zk-nav-toggle span:nth-child(1){top:13px;}
.zk-nav-toggle span:nth-child(2){top:19px;}
.zk-nav-toggle span:nth-child(3){top:25px;}
.zk-nav-toggle.is-active span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.zk-nav-toggle.is-active span:nth-child(2){opacity:0;}
.zk-nav-toggle.is-active span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

@media (max-width:768px){
  .zk-nav-toggle{display:block;}
  .zk-navlinks{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:2px;background:var(--sea-900);padding:.5rem 1.25rem 1rem;box-shadow:0 14px 20px -12px rgba(0,0,0,.4);overflow-x:visible;}
  .zk-navlinks.is-open{display:flex;}
  .zk-navlinks a{padding:12px 10px;width:100%;}
}

/* ---- hero ---- */
.zk-hero{position:relative;color:var(--white);overflow:hidden;}
.zk-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.55);}
.zk-hero-gradient{position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,52,44,.55) 0%, rgba(8,80,65,.75) 100%);}
.zk-hero-content{position:relative;max-width:1000px;margin:0 auto;padding:4rem 1.5rem 5rem;}
.zk-eyebrow{font-family:"Open Sans",sans-serif;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--sea-100);margin:0 0 .6rem;}
.zk-hero h1{font-size:38px;font-weight:600;margin:0 0 .8rem;letter-spacing:-0.01em;}
.zk-hero p.lede{font-size:18px;color:var(--sea-50);margin:0 0 1.5rem;}
.zk-hero-cta{display:inline-flex;gap:10px;flex-wrap:wrap;}
.zk-btn{font-family:"Open Sans",sans-serif;font-weight:600;font-size:13.5px;padding:.75rem 1.3rem;border-radius:30px;text-decoration:none;display:inline-block;}
.zk-btn-primary{background:var(--clay-600);color:var(--white);}
.zk-btn-primary:hover{background:#7f321a;color:var(--white);}
.zk-btn-ghost{background:rgba(255,255,255,.12);color:var(--white);border:1px solid rgba(255,255,255,.4);}
.zk-btn-ghost:hover{background:rgba(255,255,255,.22);}

/* ---- section index cards on homepage ---- */
.zk-section-cards{max-width:1000px;margin:-3rem auto 0;padding:0 1.5rem;position:relative;z-index:2;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(210px,100%),1fr));gap:14px;}
.zk-scard{background:var(--white);border-radius:14px;padding:1.4rem 1.3rem;box-shadow:0 14px 30px -18px rgba(4,52,44,.4);text-decoration:none;color:var(--ink);border-top:4px solid var(--sea-600);}
.zk-scard:nth-child(2){border-top-color:var(--clay-600);}
.zk-scard:nth-child(3){border-top-color:#B08D2E;}
.zk-scard:nth-child(4){border-top-color:#5B4A8A;}
.zk-scard .num{font-family:"Open Sans",sans-serif;font-size:11px;color:var(--ink-soft);opacity:.7;letter-spacing:.05em;}
.zk-scard h3{font-size:17px;margin:.3rem 0 .3rem;}
.zk-scard p{font-family:"Open Sans",sans-serif;font-size:12.5px;color:var(--ink-soft);margin:0;}

/* ---- intro / tools ---- */
main{max-width:1000px;margin:0 auto;padding:3rem 1.5rem 2rem;}
.zk-intro-text{font-size:16px;color:var(--ink-soft);max-width:70ch;margin:0 auto 2.5rem;text-align:center;}
.zk-tools{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:1.5rem;box-shadow:0 12px 28px -18px rgba(4,52,44,.35);margin-bottom:3rem;}
.zk-tools h2{font-family:"Open Sans",sans-serif;font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft);margin:0 0 1rem;font-weight:600;}
.zk-tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(340px,100%),1fr));gap:10px;}
.zk-tool-card{display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;padding:1rem .5rem;border-radius:10px;background:var(--sand-100);text-decoration:none;color:var(--ink);}
.zk-tool-card:hover{background:var(--sea-50);}
.zk-tool-card span{font-family:"Open Sans",sans-serif;font-size:12.5px;font-weight:600;}

/* ---- downloadable materials (card / flyer) ---- */
.zk-material-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(220px,100%),1fr));gap:16px;}
.zk-material-card{display:block;border-radius:12px;overflow:hidden;background:var(--sand-100);text-decoration:none;color:var(--ink);border:1px solid var(--line);transition:box-shadow .15s ease,transform .15s ease;}
.zk-material-card:hover{box-shadow:0 14px 26px -16px rgba(4,52,44,.4);transform:translateY(-2px);}
.zk-material-thumb{width:100%;height:230px;object-fit:contain;object-position:center;background:var(--white);border-bottom:1px solid var(--line);padding:10px;box-sizing:border-box;}
.zk-material-info{display:block;padding:.9rem 1rem 1.1rem;}
.zk-material-info strong{display:block;font-family:"Helvetica Neue",Arial,sans-serif;font-size:14px;margin-bottom:.3rem;color:var(--ink);}
.zk-material-info p{font-family:"Open Sans",sans-serif;font-size:12.5px;color:var(--ink-soft);margin:0;}

.zk-fact{display:flex;gap:12px;align-items:flex-start;background:var(--sea-50);border:1px solid var(--sea-100);border-radius:10px;padding:1rem 1.1rem;margin-bottom:3rem;}
.zk-fact .label{font-family:"Open Sans",sans-serif;font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--sea-800);font-weight:700;margin:0 0 .2rem;}
.zk-fact p{margin:0;color:var(--sea-900);font-size:14.5px;}

/* ---- theme sections ---- */
.zk-theme{scroll-margin-top:75px;margin-bottom:4rem;}
.zk-theme-head{display:flex;align-items:baseline;gap:14px;margin-bottom:.4rem;}
.zk-theme-num{font-family:"Open Sans",Arial,sans-serif;font-size:13px;font-weight:700;color:var(--white);background:var(--sea-600);border-radius:20px;padding:3px 12px;}
.zk-theme h2{font-size:26px;margin:0;letter-spacing:-.01em;}
.zk-theme-photo{border-radius:14px;overflow:hidden;margin:1rem 0 1.5rem;}
.zk-theme-photo img{width:50%;object-fit:cover;}

.zk-accordion-item{border:1px solid var(--line);border-radius:10px;margin-bottom:10px;background:var(--white);overflow:hidden;}
.zk-accordion-item summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:.9rem 1.1rem;font-weight:600;font-size:15.5px;}
.zk-accordion-item summary::-webkit-details-marker{display:none;}
.zk-accordion-item summary .zk-chev{font-family:"Open Sans",sans-serif;color:var(--ink-soft);flex-shrink:0;transition:transform .15s ease;font-size:14px;}
.zk-accordion-item[open] summary .zk-chev{transform:rotate(90deg);}
.zk-body{padding:0 1.1rem 1.1rem;font-size:14.5px;color:var(--ink-soft);}
.zk-body p{margin:0 0 .8rem;}
.zk-body ul{margin:0 0 .8rem;padding-left:1.2rem;}
.zk-body li{margin-bottom:.35rem;}
.zk-body h4{font-family:"Open Sans",sans-serif;font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--sea-800);margin:.9rem 0 .4rem;}
.zk-source{font-family:"Open Sans",sans-serif;font-size:11.5px;color:var(--ink-soft);opacity:.75;margin-top:.6rem;}
.zk-mini-fact{background:var(--sea-50);border-left:3px solid var(--sea-600);padding:.6rem .8rem;margin:.7rem 0;font-size:13.5px;color:var(--sea-900);}
.zk-badge-do,.zk-badge-dont{display:inline-block;font-family:"Open Sans",Arial,sans-serif;font-size:11px;font-weight:700;letter-spacing:.03em;padding:2px 8px;border-radius:20px;margin:.6rem 0 .4rem;}
.zk-badge-do{background:var(--sea-100);color:var(--sea-800);}
.zk-badge-dont{background:var(--clay-100);color:var(--clay-600);}

/* ---- sticky emergency ---- */
.zk-emergency-bar{position:sticky;bottom:0;left:0;right:0;background:var(--clay-600);color:var(--white);padding:.8rem 1.5rem;display:flex;align-items:center;justify-content:space-between;gap:10px;font-family:"Helvetica Neue",Arial,sans-serif;cursor:pointer;z-index:40;}
.zk-emergency-bar .num{font-size:15px;font-weight:700;}
.zk-emergency-panel{display:none;background:var(--white);border-top:1px solid var(--line);padding:1rem 1.5rem;font-family:"Helvetica Neue",Arial,sans-serif;font-size:13px;position:sticky;bottom:52px;z-index:39;}
.zk-emergency-panel.zk-open{display:block;}
.zk-emergency-panel .grid{max-width:1000px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(180px,100%),1fr));gap:.5rem 1.5rem;}
.zk-emergency-panel .row{display:flex;justify-content:space-between;padding:.25rem 0;border-bottom:1px dashed var(--line);}
.zk-emergency-panel .row span:last-child{font-weight:700;color:var(--clay-600);}

footer.zk-foot{max-width:1000px;margin:0 auto;padding:2rem 1.5rem 6rem;font-family:"Open Sans",sans-serif;font-size:12px;color:var(--ink-soft);text-align:center;}
footer.zk-foot a{color:var(--sea-600);}

@media (max-width:640px){
  .zk-hero h1{font-size:28px;}
  .zk-hero-content{padding:3rem 1.25rem 4.5rem;}
  main{padding:2rem 1rem 2rem;}
}


main img:not(.zk-material-thumb){cursor:zoom-in;transition:opacity .15s ease;}
main img:not(.zk-material-thumb):hover{opacity:.88;}
.zk-lightbox{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:5vh 5vw;background:rgba(4,20,17,.9);opacity:0;transition:opacity .18s ease;}
.zk-lightbox.is-open{display:flex;opacity:1;}
.zk-lightbox img{max-width:100%;max-height:88vh;width:auto;display:block;border-radius:8px;box-shadow:0 30px 60px -20px rgba(0,0,0,.6);cursor:default;}
.zk-lightbox-close{position:absolute;top:18px;right:22px;width:42px;height:42px;border-radius:50%;border:0;background:rgba(255,255,255,.12);color:var(--white);font-size:22px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;}
.zk-lightbox-close:hover{background:rgba(255,255,255,.22);}
.zk-lightbox-caption{position:absolute;left:0;right:0;bottom:18px;text-align:center;font-family:"Helvetica Neue",Arial,sans-serif;font-size:13px;color:var(--sea-50);padding:0 2rem;}
body.zk-lightbox-lock{overflow:hidden;}