/* DELTA-SIERRA MARS — FINAL CORE v1 — accessibility, glossary/search and Academy mobile zoom */
.ds-sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.ds-core-nav{max-width:1180px;margin:1.5rem auto 2rem;padding:.8rem 1rem;display:flex;gap:.55rem;flex-wrap:wrap;align-items:center;justify-content:center;border:1px solid rgba(116,139,154,.45);border-radius:14px;background:rgba(8,20,30,.96);box-shadow:0 10px 30px rgba(0,0,0,.18)}
.ds-core-nav a{display:inline-flex;align-items:center;min-height:42px;padding:.55rem .78rem;border:1px solid #536d7f;border-radius:999px;background:#102331;color:#fff!important;-webkit-text-fill-color:#fff!important;text-decoration:none;font-weight:760}
.ds-core-nav a:hover,.ds-core-nav a:focus-visible{background:#5b291b;outline:3px solid #ffe89a;outline-offset:2px}
.ds-core-nav a[aria-current="page"]{background:#f2c261;color:#17232d!important;-webkit-text-fill-color:#17232d!important}
.ds-core-tooltip{position:fixed;z-index:2147483000;max-width:min(430px,calc(100vw - 24px));padding:.75rem .85rem;border:1px solid #d2a756;border-radius:10px;background:#071018;color:#fff;box-shadow:0 14px 45px rgba(0,0,0,.38);font-size:.94rem;line-height:1.45;pointer-events:none}
.ds-core-tooltip[hidden]{display:none!important}
.ds-core-info-trigger{cursor:help;text-decoration-thickness:.08em;text-underline-offset:.15em}
.ds-info-touch-button{display:inline-flex;align-items:center;justify-content:center;width:1.55rem;height:1.55rem;margin-left:.2rem;padding:0;border:1px solid #8a6a2c;border-radius:50%;background:#fff4dc;color:#16232d;font:800 .8rem/1 system-ui,sans-serif;vertical-align:middle;cursor:pointer}
.ds-info-touch-button:hover,.ds-info-touch-button:focus-visible{outline:3px solid #ffe89a;outline-offset:2px;background:#f2c261}
.ds-academy-zoom{display:inline-flex;align-items:center;gap:.35rem;margin:.55rem 0 0;padding:.55rem .72rem;border:1px solid #5b7180;border-radius:9px;background:#102331;color:#fff;font-weight:760;cursor:pointer}
.ds-academy-zoom:hover,.ds-academy-zoom:focus-visible{outline:3px solid #ffe89a;outline-offset:2px;background:#63331f}
.ds-academy-dialog{width:min(98vw,1500px);height:min(96vh,1050px);padding:0;border:1px solid #60798b;border-radius:14px;background:#071018;color:#fff;box-shadow:0 25px 90px rgba(0,0,0,.7)}
.ds-academy-dialog::backdrop{background:rgba(0,0,0,.78)}
.ds-academy-dialog__bar{position:sticky;top:0;z-index:3;display:flex;gap:.45rem;align-items:center;flex-wrap:wrap;padding:.65rem .75rem;background:#102331;border-bottom:1px solid #536d7f}
.ds-academy-dialog__bar button{min-width:44px;min-height:40px;padding:.45rem .7rem;border:1px solid #718999;border-radius:8px;background:#fff;color:#17232d;font-weight:800;cursor:pointer}
.ds-academy-dialog__bar button:focus-visible{outline:3px solid #ffe89a;outline-offset:2px}
.ds-academy-dialog__title{margin-right:auto;font-weight:800}
.ds-academy-dialog__viewport{height:calc(100% - 58px);overflow:auto;overscroll-behavior:contain;background:#fff;padding:1rem}
.ds-academy-dialog__viewport img{display:block;max-width:none;height:auto;margin:0 auto;transform-origin:top left}
.ds-academy-dialog__caption{max-width:900px;margin:.9rem auto 0;padding:.75rem 1rem;border-radius:8px;background:#f7f4ec;color:#1b2b36;line-height:1.5}
.ds-glossary-alpha{display:flex;gap:.35rem;flex-wrap:wrap;margin:1rem 0 1.5rem}
.ds-glossary-alpha a{display:inline-flex;min-width:2rem;justify-content:center;padding:.35rem .5rem;border:1px solid #8aa0ae;border-radius:7px;text-decoration:none}
.ds-glossary-list{display:grid;gap:.8rem}
.ds-glossary-entry{padding:.85rem 1rem;border:1px solid rgba(81,105,121,.35);border-radius:10px;background:rgba(255,250,242,.78)}
.ds-glossary-entry dt{font-weight:850;font-size:1.08rem;color:#5b291b}
.ds-glossary-entry dd{margin:.3rem 0 0}
.ds-glossary-entry dd p{margin:.3rem 0}
.ds-glossary-source{font-size:.88rem}
.ds-academy-grid,.ds-tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem;margin:1.2rem 0}
.ds-academy-card,.ds-tool-card{padding:1rem;border:1px solid rgba(81,105,121,.4);border-radius:12px;background:#fffaf2;color:#17232d}
.ds-academy-card h2,.ds-tool-card h2{font-size:1.05rem;margin:.2rem 0 .55rem}
.ds-module-num{display:inline-flex;margin:0;padding:.25rem .45rem;border-radius:6px;background:#102331;color:#fff;font-weight:850;letter-spacing:.08em}
.ds-search-form{margin:1rem 0 1.25rem;padding:1rem;border:1px solid #718999;border-radius:12px;background:#fffaf2;color:#17232d}
.ds-search-form label{display:block;font-weight:800;margin-bottom:.45rem}
.ds-search-row{display:flex;gap:.5rem}
.ds-search-row input{flex:1;min-width:0;min-height:46px;padding:.65rem .8rem;border:1px solid #718999;border-radius:8px;font:inherit}
.ds-search-row button{min-height:46px;padding:.65rem .95rem;border:0;border-radius:8px;background:#8a3f26;color:#fff;font-weight:800;cursor:pointer}
.ds-search-row input:focus-visible,.ds-search-row button:focus-visible{outline:3px solid #f2c261;outline-offset:2px}
.ds-search-results{display:grid;gap:.8rem}
.ds-search-result{padding:.9rem 1rem;border:1px solid rgba(81,105,121,.35);border-radius:10px;background:#fffaf2;color:#17232d}
.ds-search-result h2{font-size:1.06rem;margin:0 0 .35rem}
.ds-search-result p{margin:.25rem 0}
.ds-search-status{font-weight:700}
.ds-tools-grid .ds-tool-card a,.ds-academy-grid .ds-academy-card a{color:#5b291b}
.ds-calc{padding:1rem;border:1px solid #718999;border-radius:12px;background:#fffaf2;color:#17232d}
.ds-calc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:.8rem}
.ds-calc-grid label{font-weight:700}
.ds-calc-grid label span{display:flex;gap:.35rem;align-items:center;margin-top:.35rem}
.ds-calc input{width:100%;min-height:42px;padding:.45rem .55rem;border:1px solid #718999;border-radius:7px}
.ds-calc button{min-height:42px;margin:.65rem .4rem 0 0;padding:.55rem .8rem;border:0;border-radius:8px;background:#8a3f26;color:#fff;font-weight:800}
.ds-result{margin-top:.8rem;padding:.75rem;border-left:4px solid #8a3f26;background:#fff}
.ds-formula{margin:.7rem 0;padding:.65rem;border-radius:8px;background:#102331;color:#fff;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;overflow-wrap:anywhere}
img,svg{max-width:100%}
figure.academy-figure img{max-width:100%;height:auto}
@media(max-width:600px){
 .ds-core-nav{margin:1rem .55rem 1.5rem;padding:.7rem .6rem;gap:.4rem}
 .ds-core-nav a{font-size:.87rem;min-height:40px;padding:.5rem .62rem}
 .ds-search-row{flex-direction:column}
 .ds-search-row button{width:100%}
 .ds-academy-grid,.ds-tools-grid{grid-template-columns:1fr}
 .ds-academy-dialog{width:100vw;height:100dvh;max-width:none;max-height:none;border-radius:0;border:0}
 .ds-academy-dialog__viewport{height:calc(100dvh - 64px);padding:.6rem}
 .ds-academy-dialog__caption{font-size:.9rem}
 .ds-academy-zoom{min-height:44px}
}
/* Runtime class aliases — JS final v1 */
.ds-academy-zoom-button{display:inline-flex;align-items:center;gap:.35rem;margin:.55rem 0 0;padding:.55rem .72rem;border:1px solid #5b7180;border-radius:9px;background:#102331;color:#fff;font-weight:760;cursor:pointer;min-height:44px}
.ds-academy-zoom-button:hover,.ds-academy-zoom-button:focus-visible{outline:3px solid #ffe89a;outline-offset:2px;background:#63331f}
.ds-academy-dialog-bar{position:sticky;top:0;z-index:3;display:flex;gap:.45rem;align-items:center;flex-wrap:wrap;padding:.65rem .75rem;background:#102331;border-bottom:1px solid #536d7f}
.ds-academy-dialog-bar button{min-width:44px;min-height:40px;padding:.45rem .7rem;border:1px solid #718999;border-radius:8px;background:#fff;color:#17232d;font-weight:800;cursor:pointer}
.ds-academy-dialog-bar button:focus-visible{outline:3px solid #ffe89a;outline-offset:2px}
.ds-academy-zoom-viewport{height:calc(100% - 58px);overflow:auto;overscroll-behavior:contain;background:#fff;padding:1rem}
.ds-academy-zoom-viewport img{display:block;max-width:none;height:auto;margin:0 auto;transform-origin:top left}
.ds-academy-dialog-caption{max-width:900px;margin:.9rem auto 0;padding:.75rem 1rem;border-radius:8px;background:#f7f4ec;color:#1b2b36;line-height:1.5}
@media(max-width:600px){.ds-academy-zoom-viewport{height:calc(100dvh - 64px);padding:.6rem}.ds-academy-dialog-caption{font-size:.9rem}}