/* Adapted from HCA's original housekeeping Lesson 1 template; no external fonts or scripts. */
:root{--navy:#072349;--navy2:#0b3769;--gold:#e5ab32;--teal:#126a6a;--ink:#1c2a3a;--muted:#526479;--paper:#fff;--bg:#edf3f8;--line:#d8e3ed;--accent:#e5ab32}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:'Noto Sans',Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65}html[lang=ar] body{font-family:'Noto Sans Arabic',Tahoma,Arial,sans-serif;line-height:1.9}button,input{font:inherit}button,a,summary{touch-action:manipulation}button{min-height:46px;padding:10px 18px;border:1px solid var(--line);border-radius:12px;background:white;color:var(--navy);font-weight:700;cursor:pointer}button:hover:not(:disabled){background:#e5edf6}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid #a76b00;outline-offset:3px}h1:focus{outline:none}a{color:var(--navy2)}.primary{background:var(--navy);color:white;border-color:var(--navy)}.primary:hover:not(:disabled){background:var(--navy2)}.app{max-width:1540px;margin:auto}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:24px;padding:19px 30px;background:var(--navy);color:white;box-shadow:0 8px 26px #07234914}.brand{display:flex;align-items:center;gap:16px;flex:1;min-width:0}.badge{display:flex;align-items:center;justify-content:center;flex:0 0 57px;height:57px;border-radius:50%;background:var(--gold);color:var(--navy);font-size:18px;font-weight:900;letter-spacing:.5px}.brand-copy strong{display:block;font-size:17px;line-height:1.4}.brand-copy span{display:block;font-size:12px;color:#c6d9ed;margin-top:5px}.langs{display:flex;gap:6px}.langs button{padding:7px 12px;min-width:48px;background:transparent;color:white;border-color:#6c84a2;font-size:13px}.langs button[aria-pressed=true]{color:var(--navy);background:var(--gold);border-color:var(--gold)}.progress-wrap{width:155px;flex:0 0 155px}.progress-meta{font-size:12px;display:flex;justify-content:space-between;margin-bottom:7px}.progress{height:8px;background:#284564;border-radius:8px;overflow:hidden}.progress span{display:block;height:100%;background:var(--gold);transition:width .2s}.review-note{padding:10px 30px;background:#fff6df;color:#62450a;font-size:12px;border-bottom:1px solid #eed59d}.stage{padding:26px 30px 12px}.slide-card{background:var(--paper);border:1px solid var(--line);border-radius:26px;overflow:hidden;box-shadow:0 12px 42px #0723490d}.section-strip{height:9px;background:var(--accent)}.slide-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:30px;padding:34px}.content{min-width:0}.kicker{color:var(--teal);font-weight:800;font-size:12px;letter-spacing:1px;text-transform:uppercase}html[lang=ar] .kicker{letter-spacing:0}h1{font-size:clamp(25px,2.65vw,38px);line-height:1.19;letter-spacing:-.5px;margin:10px 0 16px;color:var(--navy)}html[lang=ar] h1{line-height:1.55;letter-spacing:0;font-size:clamp(25px,2.4vw,35px)}.lead{font-size:18px;line-height:1.7;margin:0 0 24px;color:var(--muted)}.bullets{list-style:none;padding:0;margin:0;display:grid;gap:13px;counter-reset:b}.bullets li{position:relative;padding:13px 15px 13px 53px;background:#f3f7fb;border:1px solid var(--line);border-radius:14px;font-size:16px;line-height:1.55;counter-increment:b}.bullets li:before{content:counter(b);position:absolute;left:14px;top:14px;border-radius:50%;width:26px;height:26px;background:var(--navy);color:white;display:grid;place-items:center;font-size:12px;font-weight:800}.callout{margin-top:20px;padding:15px 19px;background:var(--navy);border-inline-start:5px solid var(--gold);border-radius:12px;color:#fff;font-size:15px;font-weight:700;line-height:1.65}.visual{margin:0;min-width:0;align-self:start}.visual img{display:block;width:100%;height:auto;object-fit:contain;border-radius:18px;background:#edf3f8;border:1px solid var(--line)}.visual figcaption{font-size:11px;line-height:1.5;color:var(--muted);padding:8px 5px 0}.support{padding:0 34px 25px}details{border-top:1px solid var(--line);padding:12px 0}summary{cursor:pointer;font-size:14px;font-weight:800;color:var(--navy);min-height:32px;padding:4px 0}details p{font-size:16px;margin:10px 0 0}.audio-status{background:#fff6df;color:#62450a;border-radius:8px;padding:11px;font-size:13px}#transcriptText{white-space:pre-wrap}.sources-list{padding-inline-start:20px;font-size:14px}.sources-list li{margin:8px 0}.bottom-nav{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 30px 8px}.nav-center{display:flex;gap:10px}.app-footer{display:flex;justify-content:space-between;gap:18px;padding:14px 30px 24px;color:var(--muted);font-size:12px}.app-footer a{white-space:nowrap}.practice{padding:0 34px 25px}.practice h2{font-size:22px;color:var(--navy)}.practice p{font-size:16px}.options{display:grid;gap:9px}.option{display:flex;align-items:flex-start;gap:12px;text-align:start;font-weight:500;width:100%;line-height:1.6;border-radius:12px;padding:13px 16px}.option[data-selected=true]{border:2px solid var(--navy);background:#e9f1f8}.option b{flex:0 0 26px;font-size:14px}.feedback{padding:16px;margin-top:16px;border-inline-start:4px solid var(--teal);background:#e9f5ee;border-radius:10px}.feedback.incorrect{background:#fff0ed;border-color:#a23428}.feedback strong{display:block;margin-bottom:5px}.feedback p{margin:0}dialog{padding:0;border:1px solid var(--line);border-radius:20px;width:min(920px,calc(100vw - 30px));max-height:88vh;color:var(--ink);box-shadow:0 20px 120px #07234966}dialog::backdrop{background:#071f3adb}.dialog-head{position:sticky;top:0;z-index:2;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:16px 24px;border-bottom:1px solid var(--line);background:white}.dialog-head h2{font-size:22px;margin:0;color:var(--navy)}.close{font-size:24px;min-width:46px;padding:3px 12px;line-height:1}.menu-list{padding:18px;display:grid;gap:9px}.menu-item{display:flex;gap:15px;text-align:start;align-items:center;font-size:14px;font-weight:500}.menu-item.active{border-color:var(--navy);background:#e9f1f8}.menu-item .num{display:grid;place-items:center;min-width:32px;height:32px;background:var(--navy);color:white;border-radius:8px;font-size:12px}.quiz-content{padding:22px 26px 28px}.quiz-content fieldset{border:1px solid var(--line);border-radius:14px;padding:18px;margin:0 0 22px;min-width:0}.quiz-content legend{font-size:17px;font-weight:700;padding:0 8px;line-height:1.6}.quiz-choice{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;margin:8px 0;border:1px solid var(--line);border-radius:9px;cursor:pointer;font-size:15px}.quiz-choice input{margin-top:6px;accent-color:var(--navy);min-width:18px;min-height:18px}.quiz-choice:has(input:checked){background:#edf3fa;border-color:var(--navy)}.result-box{padding:18px;background:#edf3fa;border-radius:14px;margin-bottom:20px}.result-score{font-size:40px;color:var(--navy);font-weight:800}.quiz-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.error{background:#fff0ed;color:#852618;padding:14px;border-radius:10px}.subtle{font-size:13px;color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:fixed;top:-100px;left:20px;background:white;color:var(--navy);z-index:100;padding:12px}.skip:focus{top:10px}[hidden]{display:none!important}html[dir=rtl] .bullets li{padding:13px 53px 13px 15px}html[dir=rtl] .bullets li:before{left:auto;right:14px}html[dir=rtl] .progress span{margin-left:auto}html[dir=rtl] .progress-meta{direction:ltr}html[dir=rtl] .progress-wrap{direction:rtl}html[dir=rtl] .badge{font-family:Arial,sans-serif}
@media(max-width:1050px){.topbar{gap:15px;padding:16px 20px}.progress-wrap{width:115px;flex-basis:115px}.brand-copy strong{font-size:15px}.slide-grid{gap:22px;padding:26px}.support,.practice{padding-inline:26px}.stage{padding:20px}.bottom-nav,.app-footer{padding-inline:20px}.lead{font-size:17px}.bullets li{font-size:15px}}
@media(max-width:760px){.topbar{position:relative;flex-wrap:wrap;gap:13px;padding:15px 16px}.brand{flex:1}.badge{flex-basis:46px;height:46px;font-size:16px}.brand-copy strong{font-size:14px}.brand-copy span{font-size:10px}.progress-wrap{width:100%;flex:1 1 100%}.progress-meta{font-size:11px}.langs button{padding:7px 9px;min-width:42px}.review-note{padding:9px 16px;font-size:11px}.stage{padding:15px 12px 8px}.slide-card{border-radius:19px}.slide-grid{grid-template-columns:minmax(0,1fr);gap:24px;padding:23px 19px}.lead{font-size:17px}.bullets li{font-size:16px}h1{font-size:29px}html[lang=ar] h1{font-size:28px}.visual{max-width:560px;width:100%;justify-self:center}.visual figcaption{font-size:11px}.support,.practice{padding-inline:19px}.bottom-nav{flex-wrap:wrap;padding:8px 12px;gap:8px}.nav-center{order:3;width:100%;display:grid;grid-template-columns:1fr 1fr;gap:8px}.bottom-nav>button{flex:1;font-size:14px}.nav-center button{font-size:13px}.app-footer{display:block;padding:15px 16px;font-size:11px}.app-footer span{display:block;margin-top:8px}dialog{width:calc(100vw - 16px);max-height:93vh}.dialog-head{padding:12px 16px}.dialog-head h2{font-size:20px}.quiz-content{padding:18px 16px}.quiz-content fieldset{padding:13px}.quiz-content legend{font-size:16px}.quiz-choice{font-size:14px}.menu-list{padding:12px}.menu-item{font-size:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.progress span{transition:none}}
@media print{.topbar,.bottom-nav,.review-note,.app-footer,.langs,.support,dialog{display:none}.stage{padding:0}.slide-card{border:none;box-shadow:none}.slide-grid{padding:15px;grid-template-columns:1.1fr 1fr}body{background:white}}

/* HCA audio/photo R1 enhancement */
.visual img{height:clamp(300px,35vw,540px)!important;object-fit:contain!important;object-position:center!important;background:var(--bg,#edf3f8)}
.narration-panel{margin-top:20px;padding:14px;border:1px solid #c8d9e7;border-radius:14px;background:#f3f7fb}
.narration-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:9px;color:var(--navy,#072349)}
.narration-head span{color:var(--muted,#526479);font-size:12px;text-align:end}
.narration-panel audio{display:block;width:100%;min-height:44px}
.audio-status{background:#e8f4ed!important;color:#174d38!important}
@media(max-width:880px){.visual img{height:min(62vw,420px)!important}}