:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,sans-serif;color:#142c45;background:#f3f6fa;font-size:16px}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #0095b6;outline-offset:4px}header{height:84px;background:white;border-bottom:1px solid #dce5ee;display:flex;justify-content:space-between;align-items:center;padding:0 max(5%,calc((100vw - 1200px)/2))}.brand{color:#142c45;text-decoration:none;font-weight:800;letter-spacing:.08em;display:flex;align-items:center;gap:10px}.brand b{color:#008898}.logo{background:#142c45;color:#b6f36b;width:36px;height:36px;display:grid;place-items:center;border-radius:10px}.owner{font-size:.875rem;color:#52677c}main{max-width:1200px;margin:auto;padding:38px 24px}.intro{display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;margin-bottom:32px}.eyebrow{font-size:.8rem;letter-spacing:.12em;color:#00818d;font-weight:800}h1{font-size:clamp(2rem,4vw,3.3rem);letter-spacing:-.045em;line-height:1.1;margin:14px 0}p{line-height:1.6;color:#52677c} .today{background:#142c45;color:white;padding:28px;border-radius:22px;position:relative;box-shadow:0 12px 30px #142c4514}.today span{font-size:.8rem;letter-spacing:.1em;color:#bdd1e2}.today strong{display:block;font-size:2rem;margin:10px 0}.today p{color:#ccd9e5;font-size:.9rem}.today button{border:0;background:#b6f36b;color:#142c45;padding:12px 18px;border-radius:10px;font-weight:750}nav{display:flex;border-bottom:1px solid #ccd9e5;gap:26px;margin-bottom:30px}.tab{background:none;border:0;padding:17px 0;color:#52677c;border-bottom:3px solid transparent;font-weight:650}.tab.active{color:#007886;border-color:#008d98}h2{font-size:1.5rem;margin:0}.sectiontop{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:16px}.sectiontop p{margin:7px 0;font-size:.9rem}.search{display:flex;flex-direction:column;gap:5px;font-size:.875rem;color:#52677c}.search input{width:290px;padding:12px 14px;border:1px solid #cbd7e3;border-radius:10px;background:white;color:#142c45}.filters{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}.filters button{background:white;border:1px solid #d4dfe8;padding:9px 14px;border-radius:30px;color:#52677c;font-size:.875rem}.filters button.active{background:#142c45;border-color:#142c45;color:white}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.card{text-align:left;background:white;border:1px solid #d9e3ed;border-radius:16px;padding:23px;min-height:204px;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s}.card:hover{transform:translateY(-3px);box-shadow:0 10px 24px #142c4510;border-color:#8bbbc4}.tag{font-size:.75rem;color:#007b87;font-weight:750;letter-spacing:.04em}.card h3{font-size:1.5rem;color:#142c45;margin:16px 0 5px;letter-spacing:-.025em}.card p{font-size:.95rem;margin:0 0 20px}.card small{font-size:.875rem;color:#007c89;margin-top:auto}.card.learned{border-top:4px solid #75b446}.secondary{padding:10px 16px;border:1px solid #cbd7e3;border-radius:10px;background:white;color:#142c45}dialog{border:0;border-radius:24px;width:min(660px,92vw);padding:38px;max-height:88vh;color:#142c45;box-shadow:0 24px 80px #091e4666}dialog::backdrop{background:#102a456e;backdrop-filter:blur(4px)}.close{position:absolute;right:15px;top:10px;background:none;border:0;font-size:2rem;color:#52677c}dialog h2{font-size:2.1rem;margin:15px 0 6px}.block{padding:18px 20px;background:#f0f5fa;border-radius:12px;margin:16px 0}.block.example{background:#ecf7f6}.block b{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:#007985}.block p{color:#243c53;margin:8px 0 0}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.primary{background:#142c45;color:white;border:0;border-radius:10px;padding:13px 18px}.quizbox{background:white;border:1px solid #d9e3ed;border-radius:20px;padding:32px;max-width:780px;margin:24px auto}.meter{height:7px;background:#e6edf3;border-radius:9px;margin-bottom:24px}.meter div{height:100%;background:#0095a0;border-radius:9px}.quizbox h3{font-size:1.5rem;line-height:1.4}.options{display:grid;gap:12px}.option{background:#f6f8fb;border:1px solid #d6e1ea;padding:16px;text-align:left;border-radius:12px;color:#142c45}.option.correct{background:#e6f5de;border-color:#77b449}.option.wrong{background:#fff0ed;border-color:#d68371}.option:disabled{cursor:default;opacity:1}.feedback{padding:18px;background:#edf6fa;border-radius:12px;margin:20px 0;color:#243c53;line-height:1.6}.practicegrid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.scenario{background:white;border:1px solid #d9e3ed;border-radius:16px;padding:25px}.scenario h3{line-height:1.5;font-size:1.15rem}.scenario summary{cursor:pointer;color:#007b87;font-weight:700;padding:12px 0}.scenario details p{color:#243c53}.rule{background:#e6eef5;padding:24px;border-radius:16px;margin:24px 0}footer{font-size:.875rem;color:#52677c;border-top:1px solid #d5e0e8;padding-top:24px;margin-top:40px}[hidden]{display:none!important}@media(max-width:750px){header{padding:0 20px;height:70px}.owner{display:none}main{padding:25px 18px}.intro{grid-template-columns:1fr;gap:18px}.today{padding:22px}.grid{grid-template-columns:repeat(2,1fr)}nav{gap:16px;overflow-x:auto}.tab{font-size:.875rem;white-space:nowrap}.sectiontop{align-items:stretch;flex-direction:column}.search input{width:100%}.practicegrid{grid-template-columns:1fr}dialog{padding:30px 22px}}@media(max-width:440px){.grid{grid-template-columns:1fr}.card{min-height:180px}.quizbox{padding:22px}.intro h1{font-size:2.2rem}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
.header-actions{display:flex;align-items:center;gap:20px}#themeToggle{white-space:nowrap;font-size:.875rem;min-height:44px}.block p{white-space:pre-line}:root{color-scheme:light}html[data-theme="dark"]{color-scheme:dark;background:#0e1724;color:#e4edf7}html[data-theme="dark"] header{background:#111f30;border-color:#2b3c50}html[data-theme="dark"] .brand,html[data-theme="dark"] .card h3,html[data-theme="dark"] .secondary,html[data-theme="dark"] .option{color:#e4edf7}html[data-theme="dark"] .brand b,html[data-theme="dark"] .eyebrow,html[data-theme="dark"] .tag,html[data-theme="dark"] .card small,html[data-theme="dark"] .scenario summary{color:#65d4ce}html[data-theme="dark"] p,html[data-theme="dark"] .owner,html[data-theme="dark"] .search,html[data-theme="dark"] footer{color:#b4c4d7}html[data-theme="dark"] .card,html[data-theme="dark"] .scenario,html[data-theme="dark"] .quizbox,html[data-theme="dark"] .secondary,html[data-theme="dark"] .search input,html[data-theme="dark"] .filters button{background:#172638;border-color:#34485d;color:#e4edf7}html[data-theme="dark"] .filters button.active{background:#9bdd68;color:#142c45;border-color:#9bdd68}html[data-theme="dark"] .card:hover{border-color:#65d4ce}html[data-theme="dark"] .card.learned{border-top-color:#9bdd68}html[data-theme="dark"] nav,html[data-theme="dark"] footer{border-color:#34485d}html[data-theme="dark"] .tab{color:#b4c4d7}html[data-theme="dark"] .tab.active{color:#65d4ce;border-color:#65d4ce}html[data-theme="dark"] dialog{background:#172638;color:#e4edf7}html[data-theme="dark"] .close{color:#b4c4d7}html[data-theme="dark"] .block,html[data-theme="dark"] .rule,html[data-theme="dark"] .feedback{background:#233448;color:#e4edf7}html[data-theme="dark"] .block.example{background:#173d3d}html[data-theme="dark"] .block b{color:#65d4ce}html[data-theme="dark"] .block p,html[data-theme="dark"] .scenario details p{color:#d9e5f2}html[data-theme="dark"] .primary{background:#a4e575;color:#142c45}html[data-theme="dark"] .option{background:#203247;border-color:#3d5269}html[data-theme="dark"] .option.correct{background:#23422a;border-color:#9bdd68}html[data-theme="dark"] .option.wrong{background:#4b292c;border-color:#ee9c9c}html[data-theme="dark"] .meter{background:#34485d}html[data-theme="dark"] .today{background:#1b3049;border:1px solid #38506a}@media(max-width:440px){.brand{font-size:.8rem;gap:6px;letter-spacing:.03em}.header-actions{gap:8px}#themeToggle{padding:9px 10px}}

/* TerminLab v1.0 layout. Existing dark/light theme rules remain intact. */
.groupgrid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-bottom:38px}.group-card{border:1px solid #71809655;background:transparent;color:inherit;text-align:left;border-radius:16px;padding:18px;min-height:180px;transition:transform .15s}.group-card:hover{transform:translateY(-3px)}.group-card.selected{border:2px solid #008898;padding:17px}.group-icon{display:block;font-size:1.5rem;color:#008898;margin-bottom:12px}.group-card h3{font-size:1rem;margin:0 0 8px}.group-card p{font-size:.82rem;line-height:1.6;margin:0 0 12px}.group-card small{font-weight:700}.learning-head{margin:28px 0 20px;display:flex;align-items:center;justify-content:space-between;gap:20px}.learning-head h2{margin:8px 0}.progress-track{height:8px;width:220px;background:#71809633;border-radius:9px;overflow:hidden}.progress-track div{height:100%;background:#008898}.block p{white-space:pre-line}.actions{flex-wrap:wrap;gap:8px}.related{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.result-item{border-bottom:1px solid #71809644;padding:16px 0}.result-item button{margin-top:8px}.card .saved-tag{float:right;font-size:1rem}.empty{padding:32px;border:1px dashed #71809666;border-radius:12px}.quiz-intro{line-height:1.8}.search{min-width:260px}footer details{margin-top:12px}button:disabled{cursor:default}.quizbox h3{line-height:1.6}@media(max-width:1050px){.groupgrid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:640px){.groupgrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.group-card{padding:14px;min-height:170px}.group-card.selected{padding:13px}.learning-head{display:block}.progress-track{width:100%;margin:16px 0}.owner{display:none}.search{min-width:0;width:100%}.sectiontop{flex-wrap:wrap}header{padding:0 16px}.brand{font-size:.9rem}.header-actions button{font-size:.8rem;padding:10px}.intro h1{font-size:2.4rem}}