/* System fonts only; native MathML. No remote assets. */
:root{--dlm-ink:#112a3d;--dlm-teal:#08675e;--dlm-lime:#d8ef93;--dlm-paper:#f7f9f6;--dlm-line:#d9e3df;--dlm-soft:#edf6f2;--dlm-error:#8e2e21;--dlm-radius:16px}
.dlm-app,.dlm-campus,.dlm-editor-block{font-family:system-ui,-apple-system,'Segoe UI',sans-serif;color:var(--dlm-ink);font-size:17px;line-height:1.7}
.dlm-app *{box-sizing:border-box}.dlm-app{background:var(--dlm-paper);margin:0}.dlm-app a{color:var(--dlm-teal);text-underline-offset:3px}.dlm-app p{margin:0 0 1em}.dlm-app h1,.dlm-app h2,.dlm-app h3{line-height:1.23;letter-spacing:-.02em}.dlm-app h1{font-size:clamp(2rem,4.5vw,3.8rem);max-width:23ch;margin:.2em 0 .55em}.dlm-app h2{font-size:clamp(1.45rem,2.5vw,1.95rem);margin:2em 0 .7em}.dlm-app h3{font-size:1.12rem;margin:1.1em 0 .55em}.dlm-app ul,.dlm-app ol{padding-left:1.5em}.dlm-app li{margin:.45em 0}.dlm-kicker{font-size:.77rem;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:var(--dlm-teal)}.dlm-lead{font-size:1.2rem;line-height:1.6;max-width:70ch;color:#35546a}.dlm-app .wp-block-heading{scroll-margin-top:90px}
.dlm-panel,.dlm-summary,.dlm-start,.dlm-map,.dlm-example,.dlm-practice,.dlm-warning,.dlm-transfer,.dlm-challenge,.dlm-review-plan,.dlm-concept{padding:24px 28px;border:1px solid var(--dlm-line);border-radius:var(--dlm-radius);margin:22px 0;background:white}
.dlm-summary,.dlm-map{background:var(--dlm-soft);border-left:5px solid var(--dlm-teal)}.dlm-summary h2,.dlm-map h2,.dlm-start h2,.dlm-warning h2,.dlm-review-plan h2,.dlm-transfer h2{margin-top:0}.dlm-summary li,.dlm-map li{padding-left:4px}.dlm-example{border-top:4px solid #42749b}.dlm-example h3,.dlm-practice h3,.dlm-concept h3{margin-top:0}.dlm-warning{background:#fff5e8;border-left:5px solid #b66920}.dlm-challenge{background:#f2f2fc;border-top:4px solid #6a60a8}.dlm-transfer,.dlm-review-plan{background:#f3f8e8}.dlm-start{border:2px solid #bdd4c7}
.dlm-formula{margin:20px 0;padding:22px;background:white;border:1px solid var(--dlm-line);border-radius:12px;max-width:100%;overflow:hidden}.dlm-math-scroll{overflow-x:auto;overflow-y:hidden;max-width:100%;padding:10px 2px 18px}.dlm-formula math{font-size:1.3em;margin:0 auto;min-width:max-content}.dlm-formula figcaption{font-size:.77em;color:#526574;margin-top:4px}.dlm-formula button{font-size:.76em;margin-top:10px}.dlm-formula:focus{outline:3px solid #256c84;outline-offset:2px}
.dlm-app details,.dlm-campus details{background:#fff;border:1px solid var(--dlm-line);border-radius:10px;padding:13px 18px;margin:14px 0}.dlm-app summary,.dlm-campus summary{cursor:pointer;font-weight:650;line-height:1.5}.dlm-app details[open]>summary{margin-bottom:12px}.dlm-app details p:last-child{margin-bottom:2px}
.dlm-question{margin:22px 0;background:#fff;border:1px solid var(--dlm-line);padding:24px;border-radius:14px}.dlm-question h3{margin-top:0}.dlm-choices{display:grid;gap:10px}.dlm-app button,.dlm-campus button,.dlm-question button,.dlm-flashcard button,.dlm-studylog button,.dlm-video button{font:inherit;line-height:1.4;cursor:pointer;border:1px solid #76988d;color:#123c35;background:#fff;border-radius:9px;padding:12px 16px;min-height:44px}.dlm-choices button{text-align:left}.dlm-choices .is-correct{background:#def1e7;border:2px solid #1a7554}.dlm-choices .is-wrong{background:#fff0eb;border:2px solid #a13e2d}.dlm-feedback{font-weight:600;margin:12px 0 0}.dlm-app button:hover{background:#eaf3ee}.dlm-app button:focus-visible,.dlm-app a:focus-visible,.dlm-app summary:focus-visible,.dlm-campus button:focus-visible{outline:3px solid #196b9b;outline-offset:3px}.dlm-app .button-primary{background:var(--dlm-teal);color:white;border-color:var(--dlm-teal)}
.dlm-flashcard{border:1px solid #b5cbc2;border-radius:14px;background:#fff;margin:18px 0;padding:24px}.dlm-flashcard h3{margin-top:0;font-size:1.14rem}.dlm-flashcard details{background:#f4f8f6}.dlm-card-controls{display:flex;flex-wrap:wrap;gap:10px;margin-top:15px}.dlm-card-status,.dlm-log-status{font-size:.83rem;color:#465c65;margin:12px 0 0}.dlm-studylog{border-radius:16px;background:#e9eff8;padding:25px;margin:30px 0}.dlm-studylog h2{margin-top:0}.dlm-studylog label,.dlm-campus label{display:block}.dlm-studylog textarea,.dlm-campus textarea,.dlm-campus input,.dlm-campus select{width:100%;font:inherit;padding:12px;border:1px solid #7896a2;border-radius:7px;box-sizing:border-box;margin:5px 0 15px}.dlm-campus input[type=checkbox]{width:auto}.dlm-message{background:#f2f7f4;border:1px solid #cbdad2;padding:20px;border-radius:12px;margin:14px 0}.dlm-campus{max-width:1000px;margin:auto}.dlm-campus h2{margin:1.5em 0 .7em}.dlm-thread form{margin-top:18px}
.dlm-outline ul{list-style:none!important;padding:0!important;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));gap:16px}.dlm-outline li{border:1px solid var(--dlm-line);border-radius:14px;background:white;padding:24px;margin:0!important}.dlm-outline a{font-size:1.1rem;font-weight:750;line-height:1.3;text-decoration:none;display:block}.dlm-outline a:hover{text-decoration:underline}.dlm-outline span{display:block;margin-top:9px;font-size:.9rem;color:#516373}.dlm-video{background:#102f42;color:#fff;padding:26px;border-radius:14px;margin:24px 0}.dlm-video iframe{width:100%;height:auto;aspect-ratio:16/9;border:0;border-radius:10px}.dlm-editor-block{border:1px solid #a5c2b7;border-radius:12px;background:#f7faf8;padding:22px;margin:20px 0}.dlm-editor-block>strong{display:block;margin-bottom:15px}.dlm-editor-block math{font-size:1.35em}
.dlm-header{height:76px;border-bottom:1px solid var(--dlm-line);display:flex;align-items:center;justify-content:space-between;padding:0 4vw;background:#fff;gap:20px;position:sticky;top:0;z-index:20}.dlm-brand{font-size:1.1rem;font-weight:850;text-decoration:none;color:var(--dlm-ink)!important;letter-spacing:-.03em}.dlm-brand em{font-style:normal;color:var(--dlm-teal)}.dlm-header nav{display:flex;gap:20px;font-size:.9rem;align-items:center}.dlm-layout{display:grid;grid-template-columns:280px minmax(0,1fr);max-width:1460px;margin:auto;min-height:85vh}.dlm-sidebar{padding:25px 20px;border-right:1px solid var(--dlm-line);font-size:.87rem;background:#f1f5ef;overflow:auto;max-height:calc(100vh - 76px);position:sticky;top:76px}.dlm-sidebar a{display:block;text-decoration:none;padding:7px 6px;border-radius:6px;line-height:1.4}.dlm-sidebar a:hover{background:#dfece4}.dlm-sidebar h3{font-size:.88rem}.dlm-sidebar details{background:transparent;padding:8px;margin:5px 0;border:none}.dlm-sidebar summary{font-size:.9rem}.dlm-search{display:block;width:100%;font:inherit;padding:11px;border:1px solid #94ada2;border-radius:8px;margin-bottom:14px}.dlm-search-results{border-bottom:1px solid #c3d5c9;margin-bottom:14px}.dlm-main{min-width:0;padding:40px clamp(22px,5vw,76px) 70px;max-width:1120px}.dlm-breadcrumbs{font-size:.83rem;margin-bottom:20px;display:flex;flex-wrap:wrap;gap:6px}.dlm-reading{max-width:78ch}.dlm-page-tools{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:30px}.dlm-page-tools button{font-size:.8rem;padding:9px 12px;min-height:38px}.dlm-footer{padding:30px 4vw;background:#122d3e;color:#e0e9ed;font-size:.85rem}.dlm-footer a{color:#d4efa3}.dlm-demo-note{padding:10px 18px;background:#fff2d8;color:#704f22;font-size:.79rem;border-radius:9px;margin-bottom:25px}.dlm-focus .dlm-sidebar{display:none}.dlm-focus .dlm-layout{grid-template-columns:minmax(0,1fr)}.dlm-focus .dlm-main{margin:auto;width:100%}.dlm-skip{position:absolute;top:-70px;left:12px;background:white;padding:10px;z-index:100}.dlm-skip:focus{top:10px}.dlm-reader-progress{font-size:.83rem;color:#587267;margin:15px 0}.dlm-mobile-nav{display:none}
@media(max-width:850px){.dlm-layout{grid-template-columns:minmax(0,1fr)}.dlm-sidebar{display:none;position:relative;top:0;max-height:none;border-right:0}.dlm-sidebar.is-open{display:block}.dlm-header{height:auto;min-height:66px;position:relative;flex-wrap:wrap;padding:16px 20px}.dlm-header nav{gap:12px;font-size:.8rem}.dlm-mobile-nav{display:inline-block}.dlm-main{padding:25px 20px 50px}.dlm-panel,.dlm-summary,.dlm-start,.dlm-map,.dlm-example,.dlm-practice,.dlm-warning,.dlm-transfer,.dlm-challenge,.dlm-review-plan,.dlm-concept,.dlm-question,.dlm-flashcard{padding:19px}.dlm-formula{padding:14px}.dlm-formula math{font-size:1.1em}.dlm-app h1{font-size:2.2rem;max-width:none}.dlm-app h2{font-size:1.48rem}.dlm-main,.dlm-reading{max-width:100%}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
@media print{.dlm-header,.dlm-sidebar,.dlm-page-tools,.dlm-footer,.dlm-demo-note,.dlm-card-controls,.dlm-question button,.dlm-studylog button,.dlm-formula button{display:none!important}.dlm-layout{display:block}.dlm-main{padding:0;max-width:none}.dlm-app{font-size:11pt;background:#fff}.dlm-formula,.dlm-flashcard{break-inside:avoid}.dlm-math-scroll{overflow:visible}.dlm-reading{max-width:none}a{color:#111!important}.dlm-app h2{break-after:avoid}details{break-inside:avoid}}

.dlm-wp-tools{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:18px;background:#e9f3ed;border-radius:12px;margin-bottom:25px}.dlm-wp-tools span{flex-basis:100%;font-size:.85em}.dlm-wp-tools a{font-size:.9em}.dlm-wp-tools button{font-size:.85em}.dlm-campus{padding:24px}
.dlm-app h1,.dlm-app h2,.dlm-app h3,.dlm-app p,.dlm-app li,.dlm-app summary{overflow-wrap:anywhere}