:root{--cream:#F7F1E6;--cream-2:#EFE5D3;--paper:#FFFDF8;--ink:#16232A;--ink-2:#22333B;--teal:#12667A;--teal-2:#12667A;--navy:#102931;--orange:#B3561A;--orange-bright:#F28C28;--orange-3:#FFAD50;--orange-ink:#B3561A;--muted:#5C6669;--line:rgba(22,35,42,.14);--line-dark:rgba(247,241,230,.18);--soft:rgba(22,35,42,.06);--serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;--sans:"Avenir Next",Avenir,"Helvetica Neue",Helvetica,"Segoe UI",Arial,sans-serif;--ease:cubic-bezier(.2,.7,.2,1);font-family:var(--sans);font-size:17px;line-height:1.55;color:var(--ink);background:var(--cream);-webkit-font-smoothing:antialiased}
html{scroll-padding-top:80px;scroll-behavior:smooth;overflow-x:clip}
body{overflow-x:clip}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:-.01em;line-height:1.08;margin:0}
.wrap{width:min(1180px,calc(100% - 40px));max-width:none;margin-inline:auto;padding:0}
.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:var(--orange-ink);margin:0 0 14px}
.textlink{font-weight:600;color:var(--orange-ink);text-decoration:none;border-bottom:1.5px solid rgba(179,86,26,.35);transition:border-color .3s}
.textlink:hover{border-color:var(--orange-ink)}

/* ---------- Entrance: photo dissolving into the navy concept band ---------- */
.entrance{background:radial-gradient(55% 45% at 92% 100%,rgba(18,102,122,.38) 0%,rgba(18,102,122,0) 70%),linear-gradient(180deg,#102931 0%,#102931 72%,#0e2128 100%);color:var(--cream)}
.entrance .destination-header{background:transparent;height:auto;min-height:0;align-items:flex-start;padding:clamp(48px,6vw,72px) max(20px,calc((100% - 1180px)/2)) 40px;margin:0;border:0;box-shadow:none}
.entrance .destination-header__photo{-webkit-mask-image:linear-gradient(to bottom,#000 0%,#000 26%,rgba(0,0,0,.7) 42%,rgba(0,0,0,.32) 58%,rgba(0,0,0,.08) 72%,transparent 85%);mask-image:linear-gradient(to bottom,#000 0%,#000 26%,rgba(0,0,0,.7) 42%,rgba(0,0,0,.32) 58%,rgba(0,0,0,.08) 72%,transparent 85%)}
.entrance .destination-header::before,.entrance .destination-header::after{-webkit-mask-image:linear-gradient(to bottom,#000 26%,transparent 85%);mask-image:linear-gradient(to bottom,#000 26%,transparent 85%)}
.entrance .destination-header__content{max-width:650px}
.entrance .destination-header__brand{color:#9cdce4}
.entrance .destination-header h1{font-family:var(--serif);font-weight:600;font-size:clamp(44px,5.4vw,78px);line-height:1.02;letter-spacing:-.025em;margin:0 0 22px;white-space:nowrap;text-wrap:nowrap}
.entrance .destination-header__intro{font-family:var(--sans);font-weight:400;color:#e0ddd4;font-size:clamp(17px,1.5vw,21px);line-height:1.6;max-width:42ch;margin-bottom:28px;text-wrap:pretty}
.hero-choices{display:flex;flex-wrap:wrap;align-items:stretch;gap:10px}
.entrance .hero-choices .destination-header__action{justify-content:center;gap:0;border:1px solid transparent;padding:14px 17px;font-family:var(--sans);font-size:14px;font-weight:700;line-height:1.4;cursor:pointer}
.entrance .hero-choices [data-section="concepts"].destination-header__action{background:linear-gradient(135deg,#d7f5f2 0%,#b8e9e9 50%,#9cdce4 100%);color:#153740;border-color:#b8e9e9;box-shadow:0 5px 18px #061f2920}
.entrance .hero-choices [data-section="concepts"].destination-header__action:hover{background:linear-gradient(135deg,#e8fffb 0%,#cdf3f1 50%,#afe8ed 100%)}
.entrance .hero-choices [data-topic="cross-country-training"]{background:linear-gradient(145deg,#f16b21 0%,#ff8a2e 48%,#ffb65e 100%);color:#321a08;border-color:#ff9b47;box-shadow:0 5px 18px #061f2920}
.entrance .hero-choices [data-topic="cross-country-training"]:hover{background:linear-gradient(145deg,#ff7c31,#ffa146 48%,#ffca7e)}
.entrance .hero-choices [data-topic="track-training"]{background:linear-gradient(145deg,#07546d 0%,#066d86 48%,#087f96 100%);color:#fffdf8;border-color:#2199ad;box-shadow:0 5px 18px #061f2920}
.entrance .hero-choices [data-topic="track-training"]:hover{background:linear-gradient(145deg,#086079,#08788f 48%,#08839a)}
.concepts .eyebrow cite{text-transform:none;font-style:italic;letter-spacing:.04em}
.entrance .hero-choices .hero-resource[aria-pressed=true]{outline:2px solid #ffad50;outline-offset:3px}
@media(max-width:540px){.hero-choices{display:grid;grid-template-columns:1fr}.entrance .hero-choices .destination-header__action{width:100%}}

/* ---------- Eight concepts ---------- */
.concepts{padding:0 0 clamp(44px,5vw,60px);scroll-margin-top:84px}
.concepts-head{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:14px clamp(32px,6vw,88px);align-items:end;margin-bottom:22px}
.concepts .eyebrow{grid-column:1/-1;color:var(--orange-bright);margin:0}
.concepts h2{margin:0;font-size:clamp(30px,3.6vw,46px);color:var(--cream);text-wrap:balance;max-width:16ch}
.concepts-lede{margin:0 0 6px;font-size:16px;line-height:1.6;color:rgba(247,241,230,.78);max-width:42ch}
.concept-list{list-style:none;margin:0;padding:0;counter-reset:concept;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:repeat(4,auto);grid-auto-flow:column;column-gap:clamp(32px,5vw,72px);border-top:1px solid var(--line-dark)}
.concept-list li{counter-increment:concept;border-bottom:1px solid var(--line-dark)}
.concept-list button{display:grid;grid-template-columns:2.6rem minmax(0,1fr);align-items:center;column-gap:10px;width:100%;padding:15px 12px 15px 0;border:0;border-radius:4px;background:transparent;color:var(--cream);font-family:var(--serif);font-size:clamp(18px,1.6vw,21px);font-weight:400;line-height:1.25;text-align:left;cursor:pointer;transition:background .35s,color .35s,box-shadow .35s}
.concept-list button::before{content:counter(concept,decimal-leading-zero);font-style:italic;font-size:16px;color:rgba(247,241,230,.5);padding-left:12px;transition:color .35s}
.concept-list button:hover,.concept-list button:focus-visible{background:rgba(247,241,230,.07)}
.concept-list button:hover::before,.concept-list button:focus-visible::before{color:var(--cream)}
.concept-list button[aria-pressed=true]{color:var(--orange-3);box-shadow:inset 3px 0 0 var(--orange-bright)}
.concept-list button[aria-pressed=true]::before{color:var(--orange-3)}
.concept-list button:focus-visible{outline:3px solid var(--orange-3);outline-offset:-3px}
.concepts-foot{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px 28px;margin-top:22px;font-size:14px;color:rgba(247,241,230,.8)}
.concepts-more{margin:0;display:flex;flex-wrap:wrap;gap:8px 18px}
.concepts-more a{color:var(--cream);font-weight:600;text-decoration:none;border-bottom:1.5px solid rgba(242,140,40,.5);transition:color .3s,border-color .3s}
.concepts-more a:hover{color:var(--orange-3);border-color:var(--orange-3)}
.concepts-more a:focus-visible{outline:3px solid var(--orange-3);outline-offset:4px}

/* ---------- Browse ---------- */
#browse{padding:clamp(40px,5vw,64px) 0 clamp(32px,4vw,52px);scroll-margin-top:84px}
.browse-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:clamp(36px,5vw,72px);align-items:start}
.browse-main{min-width:0}
.browse-controls{position:sticky;top:64px;z-index:20;background:var(--cream);padding-top:14px;box-shadow:0 8px 10px -12px #16232a80}
.browse-controls .browse-head{margin-bottom:12px;gap:8px 20px}
.browse-controls .browse-head h2{font-size:clamp(24px,2.4vw,32px);max-width:none;margin:0}
.browse-controls .browse-head .eyebrow,.browse-controls .browse-lede{display:none}
.browse-controls .toolbar{padding:12px 0}
.browse-controls .toolbar-foot{margin-top:8px}
.browse-head{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:14px 28px;margin-bottom:22px}
.browse-head .eyebrow{margin-bottom:10px}
.browse-head h2{font-size:clamp(28px,3.2vw,40px);margin:0 0 10px;text-wrap:balance;max-width:22ch}
[data-current-concept]:focus{outline:none}
[data-current-concept]:focus-visible{outline:2px solid var(--orange-bright);outline-offset:8px;border-radius:2px}
.browse-lede{margin:0;color:var(--ink-2);max-width:58ch;font-size:16px;line-height:1.55;text-wrap:pretty}
.change-concept{flex:none;font-size:14px;white-space:nowrap;margin-bottom:6px}
.toolbar{padding:18px 0 16px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.filters{display:grid;grid-template-columns:repeat(3,minmax(0,1fr)) auto;gap:12px;align-items:end}
.filters label{display:grid;gap:5px;flex:none;min-width:0;font-size:12px;letter-spacing:.08em;text-transform:uppercase;font-weight:600;color:var(--ink-2)}
.filters select{display:block;width:100%;margin:0;padding:11px 32px 11px 12px;border:1px solid rgba(22,35,42,.25);border-radius:8px;background:#fff;color:var(--ink);font-size:15px;font-weight:400;letter-spacing:0;text-transform:none;text-overflow:ellipsis}
.filters select:focus{border-color:var(--orange-bright);box-shadow:0 0 0 3px rgba(242,140,40,.22)}
#clear{padding:11px 16px;border:1.5px solid rgba(22,35,42,.35);border-radius:8px;background:transparent;color:var(--ink);font-weight:600;font-size:14px;white-space:nowrap;cursor:pointer;transition:border-color .3s,background .3s}
#clear:hover{border-color:var(--ink);background:#fff}
.toolbar-foot{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:8px 20px;margin-top:14px}
.optional-search{flex:1 1 320px;min-width:0}
.optional-search summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--teal-2);padding:2px 0}
.optional-search summary::-webkit-details-marker{display:none}
.optional-search summary::after{content:"+";font-size:20px;line-height:1;color:var(--orange-ink)}
.optional-search[open] summary::after{content:"−"}
.optional-search summary:hover{text-decoration:underline;text-underline-offset:4px}
.search-box{max-width:560px;padding:12px 0 4px}
.search-label{display:block;font-size:14px;font-weight:600;color:var(--ink-2)}
#search{display:block;width:100%;margin:8px 0 0;padding:14px 16px;border:1.5px solid rgba(22,35,42,.25);border-radius:8px;background:#fff;color:var(--ink);font-size:17px;transition:border-color .3s,box-shadow .3s}
#search:focus{border-color:var(--orange-bright);box-shadow:0 0 0 3px rgba(242,140,40,.22)}
#search::placeholder{color:var(--muted)}
.search-hint{margin:8px 0 0;font-size:13px;color:var(--muted);line-height:1.5}
#count{flex:none;margin:2px 0 0;font-size:13px;font-weight:600;color:var(--muted)}
#count:empty{display:none}
#concept-chapter:not([hidden]){display:block;margin:12px 0 6px;padding:18px 12px;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent;font-family:var(--serif);font-size:20px;font-weight:600;line-height:1.25;color:var(--ink);text-decoration:none;box-shadow:none;transition:background .35s}
#concept-chapter::before{content:"Book chapter";display:block;margin-bottom:6px;font:600 11px/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--teal)}
#concept-chapter:hover{background:var(--soft)}
#concept-chapter:focus-visible{outline:3px solid var(--orange-ink);outline-offset:3px}
#results{margin-top:8px}
#results .row,#related .row{display:block;padding:18px 12px;border-radius:0;border-bottom:1px solid var(--line);color:inherit;text-decoration:none;cursor:pointer;transition:background .35s}
.row strong{display:block;font-family:var(--serif);font-size:20px;font-weight:600;line-height:1.25;letter-spacing:-.005em}
.row .format{font-size:11px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--teal-2);margin-bottom:5px;transition:color .35s}
.row .desc{font-size:14px;color:var(--ink-2);margin-top:6px;line-height:1.5}
.row:hover,.row:focus-visible{background:var(--soft)}
.row:focus-visible{outline:3px solid var(--orange-ink);outline-offset:-3px}
.row:hover .format,.row:focus-visible .format{color:var(--orange-ink)}
.search-group{font-family:var(--sans);font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--muted);margin:26px 0 4px;padding:0 12px}
.empty{padding:24px 12px;color:var(--ink-2);font-size:15px}
#browse .allowance{margin:18px 12px 0;max-width:none;text-align:left;font-size:12px;color:var(--muted);line-height:1.5}
#browse .allowance:empty{display:none}

/* ---------- Rail: the two systems, quietly ---------- */
.browse-rail{position:sticky;top:82px}
.rail-systems{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:0 10px 24px -14px rgba(22,35,42,.45)}
.rail-systems .eyebrow{margin-bottom:8px}
.rail-systems p{margin:0 0 16px;font-size:14px;line-height:1.55;color:var(--ink-2)}
.rail-cards{display:grid;gap:12px}
.rail-card{display:block;border-radius:10px;overflow:hidden;background:#fff;box-shadow:0 8px 18px -10px rgba(22,35,42,.5);transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.rail-card img{display:block;width:100%;height:auto;aspect-ratio:1734/907;object-fit:contain}
.rail-card:hover{transform:translateY(-2px);box-shadow:0 14px 24px -12px rgba(22,35,42,.55)}
.rail-card:focus-visible{outline:3px solid var(--orange-ink);outline-offset:3px}

/* ---------- Closing panel and footer ---------- */
.training-plan{margin-top:8px}
.library-site-footer .footer-meta{color:var(--muted)}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .browse-grid{grid-template-columns:1fr}
  .browse-rail{display:none}
}
@media(max-width:760px){
  .browse-controls{display:contents}
  .browse-controls .browse-head{position:sticky;top:64px;z-index:20;background:var(--cream);padding:12px 0;border-bottom:1px solid var(--line)}
  .browse-controls .browse-head h2{font-size:24px}
  .browse-controls .change-concept{margin-top:6px}
  .concepts-head{grid-template-columns:1fr;align-items:start;gap:10px}
  .concept-list{grid-template-columns:1fr;grid-template-rows:none;grid-auto-flow:row}
  .concept-list button{font-size:18px;padding:14px 8px 14px 0;grid-template-columns:2.2rem minmax(0,1fr)}
  .concept-list button::before{padding-left:8px}
  .concepts-foot{align-items:flex-start;flex-direction:column}
  .browse-head{display:block}
  .change-concept{display:inline-block;margin:12px 0 0}
  .filters{grid-template-columns:1fr 1fr}
  #clear{grid-column:1/-1}
  #results .row{padding:16px 8px}
  .row strong{font-size:18px}
  .search-group,.empty,#browse .allowance{padding-inline:8px;margin-inline:0}
}
@media(max-width:700px){
  .entrance .destination-header{min-height:0;padding:40px 20px 32px}
  .entrance .destination-header h1{font-size:clamp(40px,9vw,52px)}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .rail-card:hover,#concept-chapter:hover{transform:none}
}