/* V284.19 — scoped classroom navigation; no editor/canvas or curriculum styles. */
.mep-nav-shell,.mep-landing-intro,.mep-topic-search,.mep-classroom-entry{box-sizing:border-box;color:var(--site-text,#f8fafc);font-family:inherit}
.mep-nav-shell{width:calc(100% - 2rem);max-width:1200px;margin:1rem auto;padding:1rem 1.15rem;background:var(--site-surface-solid,#111827);border:1px solid var(--site-border-strong,#3f5d82);border-radius:18px;position:relative;z-index:15}
.mep-nav-context{display:flex;align-items:center;justify-content:space-between;gap:.5rem 1rem;flex-wrap:wrap;margin-bottom:.65rem}
.mep-nav-context>strong{font-size:1.15rem;letter-spacing:.02em}.mep-nav-context nav{display:flex;flex-wrap:wrap;gap:.35rem}
.mep-nav-shell a{text-decoration:none;color:var(--site-text,#f8fafc);box-sizing:border-box;overflow-wrap:anywhere}
.mep-nav-context a{min-height:44px;display:inline-flex;align-items:center;padding:.45rem .6rem;font-size:.85rem;border-radius:9px;border:1px solid var(--site-border,#2b3b55)}
.mep-nav-label{margin:.3rem 0 .6rem;font-size:.95rem;font-weight:800;color:var(--site-text,#f8fafc)}.mep-nav-label span{font-weight:500}
.mep-semester-options,.mep-area-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.65rem;margin:0;padding:0}
.mep-area-options{grid-template-columns:repeat(3,minmax(0,1fr))}
.mep-semester-choice,.mep-area-choice{display:flex;flex-direction:column;justify-content:center;gap:.2rem;padding:.75rem .9rem;border:2px solid var(--site-border-strong,#3f5d82);border-radius:12px;min-height:90px;background:var(--site-surface-soft,#162640);line-height:1.4}
.mep-semester-choice strong,.mep-area-choice strong{font-size:1.02rem}.mep-semester-choice small{font-size:.85rem;font-weight:600}
.mep-semester-choice>span,.mep-area-choice small{font-size:.88rem;color:var(--site-text,#f8fafc)}
.mep-semester-choice em{font-size:.77rem;font-style:normal;font-weight:700;color:var(--site-muted,#b7c5d8)}
.mep-semester-choice.is-selected,.mep-area-choice.is-selected{border-color:var(--site-primary,#38bdf8);background:var(--site-primary-soft,rgba(56,189,248,.16));box-shadow:inset 4px 0 0 var(--site-primary,#38bdf8)}
.mep-semester-choice.is-selected em{color:var(--site-text,#f8fafc)}
.mep-nav-shell a:hover,.mep-nav-action:hover{border-color:var(--site-primary,#38bdf8);text-decoration:underline;text-underline-offset:3px}
.mep-nav-shell :is(a,summary,input,button):focus-visible,.mep-topic-search :is(input,button):focus-visible,.mep-nav-action:focus-visible,.mep-classroom-entry a:focus-visible{outline:3px solid var(--site-primary,#38bdf8);outline-offset:3px}
.mep-course-links{display:flex;align-items:stretch;flex-wrap:wrap;gap:.5rem;margin-top:.75rem}
.mep-nav-action,.mep-topic-picker>summary{box-sizing:border-box;min-height:44px;padding:.6rem .8rem;display:inline-flex;align-items:center;justify-content:center;gap:.35rem;flex-wrap:wrap;border:1px solid var(--site-border-strong,#3f5d82);border-radius:10px;background:var(--site-surface-soft,#162640);color:var(--site-text,#f8fafc);font-weight:700;font-size:.9rem;line-height:1.4;text-decoration:none}
.mep-nav-action span{font-size:.82rem;font-weight:500}.mep-primary-action{border:2px solid var(--site-primary,#38bdf8);background:var(--site-primary-soft,rgba(56,189,248,.16))}
.mep-current-topic{margin:.8rem 0 0;font-size:.9rem;color:var(--site-text,#f8fafc);font-weight:650}
.mep-topic-picker{position:relative}.mep-topic-picker>summary{cursor:pointer;list-style:none}.mep-topic-picker>summary::after{content:'▾';margin-left:.3rem}.mep-topic-picker[open]>summary::after{content:'▴'}.mep-topic-picker>summary::-webkit-details-marker{display:none}
.mep-topic-panel{position:absolute;top:calc(100% + .35rem);right:0;width:min(490px,calc(100vw - 3rem));max-height:65vh;overflow:auto;padding:.8rem;border-radius:14px;border:2px solid var(--site-border-strong,#3f5d82);background:var(--site-surface-solid,#111827);box-shadow:var(--site-shadow-soft,0 10px 28px #0004);z-index:80}
.mep-topic-panel nav{display:grid;gap:.35rem}.mep-topic-panel a{min-height:44px;padding:.5rem .65rem;border:1px solid var(--site-border,#2b3b55);border-radius:8px;display:flex;align-items:center;line-height:1.4;font-size:.9rem}
.mep-topic-panel a[aria-current="page"]{font-weight:800;background:var(--site-primary-soft,#162640);border-color:var(--site-primary,#38bdf8)}
.mep-topic-search{margin:.7rem 0 1rem}.mep-topic-search label{display:block;font-weight:750;margin-bottom:.35rem;font-size:.9rem}.mep-topic-search>div{display:flex;gap:.45rem}.mep-topic-search input{box-sizing:border-box;width:100%;min-width:0;min-height:44px;background:var(--site-surface-solid,#111827);color:var(--site-text,#f8fafc);border:1px solid var(--site-border-strong,#3f5d82);border-radius:9px;padding:.65rem;font:inherit}
.mep-topic-search input::placeholder{color:var(--site-muted,#b7c5d8);opacity:1}.mep-topic-search button{min-height:44px;padding:.45rem .7rem;background:var(--site-surface-soft,#162640);color:var(--site-text,#f8fafc);border:1px solid var(--site-border-strong,#3f5d82);border-radius:9px;cursor:pointer;font:inherit;font-weight:700}.mep-topic-search p{font-size:.85rem;min-height:1.2em;margin:.35rem 0 0;color:var(--site-muted,#b7c5d8)}
[data-mep-filter-item][hidden],.mep-topic-panel [hidden]{display:none!important}
.mep-nav-page :is(#lessons,#scratch-tools,#vocabulary-tools){scroll-margin-top:1rem}
.mep-nav-page>header{position:relative!important;top:auto!important;min-height:0}
.mep-nav-page .cr-mep-study-switcher{position:relative;top:auto;margin-top:.5rem;z-index:5}
.mep-nav-page .hero,.mep-nav-page .course-hero{padding:1.3rem 1.5rem}.mep-nav-page .hero h1,.mep-nav-page .course-hero h1{font-size:clamp(1.65rem,4vw,2.7rem);line-height:1.2}
.mep-nav-page .learning-tools.mep-learning-tools{margin:.8rem 0}.mep-nav-page .learning-tools.mep-learning-tools>.learning-tools-grid{padding:0 1rem 1rem}
.mep-classroom-entry{min-width:0;border:1px solid var(--site-border-strong,#3f5d82);border-radius:18px;background:var(--site-surface-solid,#111827);overflow:hidden}.mep-classroom-entry>.portal-link-card{border:0!important;border-radius:0!important;box-shadow:none!important;height:auto}.mep-classroom-entry>.mep-semester-selector{padding:.5rem 1rem 1rem}.mep-classroom-entry .mep-semester-choice{padding:.6rem;min-height:105px}.mep-classroom-entry .mep-semester-choice strong{font-size:.92rem}.mep-classroom-entry .mep-semester-choice small{display:block}
.mep-classroom-entry .mep-hub-areas{display:grid;gap:.45rem;padding:0 1rem 1rem}.mep-hub-areas a{min-height:44px;padding:.65rem .75rem;border:1px solid var(--site-border-strong,#3f5d82);border-radius:9px;color:var(--site-text,#f8fafc);text-decoration:none;display:flex;align-items:center}
.mep2-navigation-home>header{padding:1rem!important}.mep2-navigation-home>header>div{max-width:1200px;margin:auto}.mep2-navigation-home>header h1{font-size:clamp(1.35rem,4vw,2rem)!important;line-height:1.3}.mep2-navigation-home>header .flex.items-center.gap-3{display:none}
.mep2-navigation-home main{width:calc(100% - 2rem);max-width:1200px;margin:0 auto;padding:0 0 2rem!important;box-sizing:border-box;display:block}.mep2-navigation-home main>*{margin-top:1rem!important}
.mep2-navigation-home .mep-landing-intro{padding:1rem 1.25rem;border:1px solid var(--site-border,#2b3b55);border-radius:16px;background:var(--site-surface-solid,#111827)}.mep-landing-intro h2{font-size:clamp(1.35rem,3vw,1.8rem);margin:.3rem 0}.mep-landing-intro p{margin:.4rem 0}
.mep2-navigation-home .mep-labs-visible{display:block!important}.mep2-navigation-home #scratch-tools{display:block;margin:1.25rem 0;padding:0}.mep2-navigation-home .mep-section-title{font-size:1.5rem;font-weight:800;margin:1.25rem 0 .5rem;color:var(--site-text,#f8fafc)}.mep2-navigation-home .mep-section-title small{display:block;font-size:.9rem;font-weight:500;margin-top:.3rem}
.mep2-navigation-home #mep2-lab-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.mep2-navigation-home #mep2-lab-list>div{display:flex;flex-direction:column;justify-content:space-between;gap:.8rem;padding:1.1rem;border:1px solid var(--site-border-strong,#3f5d82);border-radius:15px;background:var(--site-surface-solid,#111827);color:var(--site-text,#f8fafc);min-width:0;box-sizing:border-box}
.mep2-navigation-home #mep2-lab-list h4{font-size:1.15rem;color:var(--site-text,#f8fafc);margin:.5rem 0}.mep2-navigation-home #mep2-lab-list p{font-size:.9rem;color:var(--site-muted,#b7c5d8);margin:.5rem 0}.mep2-navigation-home #mep2-lab-list>div>a{display:flex;align-items:center;justify-content:center;min-height:46px;padding:.65rem .7rem;border:1px solid var(--site-border-strong,#3f5d82);border-radius:9px;background:var(--site-primary-soft,#162640);color:var(--site-text,#f8fafc);font-weight:750;text-decoration:none}
.mep2-navigation-home #vocabulary-tools{margin-top:1.5rem;padding:1.1rem;border:1px solid var(--site-border,#2b3b55);border-radius:16px;background:var(--site-surface-solid,#111827)}.mep2-navigation-home #vocabulary-tools>.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.75rem}.mep2-navigation-home #vocabulary-tools .hidden{display:none}
.mep-nav-page .lesson-nav a,.mep-nav-page .week-nav a{min-height:44px;display:inline-flex;align-items:center;justify-content:center}
@media(max-width:780px){.mep-nav-shell{padding:.8rem;width:calc(100% - 1rem);margin:.5rem auto}.mep-nav-context{gap:.35rem}.mep-nav-context nav{gap:.3rem}.mep-nav-context a{font-size:.76rem;padding:.4rem .45rem}.mep-area-options{grid-template-columns:1fr}.mep-area-choice{min-height:64px;padding:.65rem .8rem}.mep-semester-choice{padding:.6rem;min-height:105px}.mep-semester-choice strong small{display:block}.mep-semester-choice>span{font-size:.82rem}.mep-semester-choice em span{display:none}.mep-course-links{gap:.4rem}.mep-nav-action,.mep-topic-picker>summary{font-size:.83rem}.mep-nav-action span{display:none}.mep-topic-picker{position:static}.mep-topic-panel{top:auto;left:.5rem;right:.5rem;width:auto}.mep2-navigation-home #mep2-lab-list{grid-template-columns:repeat(2,minmax(0,1fr))}.mep2-navigation-home #vocabulary-tools>.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.mep-nav-page>header .viewer,.mep-nav-page>header .viewer-badge{font-size:.75rem;overflow-wrap:anywhere}.mep-nav-page .hero,.mep-nav-page .course-hero{padding:1rem}.mep-nav-page .course-topbar,.mep-nav-page .topbar,.mep-nav-page .study-topbar{flex-wrap:wrap;gap:.5rem;padding:.75rem}.mep2-navigation-home main{width:calc(100% - 1rem)}}
@media(max-width:480px){.mep2-navigation-home #mep2-lab-list{grid-template-columns:1fr}.mep-course-links>.mep-nav-action{flex:1 1 auto}.mep-semester-options{gap:.4rem}.mep-semester-choice strong{font-size:.92rem}}
@media(prefers-reduced-motion:reduce){.mep-nav-shell *,.mep2-navigation-home #mep2-lab-list *{scroll-behavior:auto!important;transition:none!important}}

.mep-week-outline{margin-bottom:1rem}.mep-week-outline h3{font-size:.95rem}.mep-week-outline>div{display:grid;gap:.35rem;max-height:55vh;overflow:auto}.mep-week-outline a{box-sizing:border-box;min-height:44px;display:flex;align-items:center;padding:.55rem .65rem;border:1px solid var(--site-border-strong,#3f5d82);border-radius:9px;color:var(--site-text,#f8fafc);background:var(--site-surface-solid,#111827);text-decoration:none;font-size:.85rem}.mep-week-outline a[aria-current="page"]{border-color:var(--site-primary,#38bdf8);background:var(--site-primary-soft,#162640);font-weight:800}

/* Compact secondary account tools; primary classroom destinations stay visible. */
.mep2-navigation-page .cr-verified-access-bar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.35rem;padding:.4rem .75rem;position:relative;z-index:60}
.mep2-navigation-page .cr-verified-access-identity{flex:1;min-width:0;font-size:.8rem}.mep-access-menu{position:relative}.mep-access-menu>summary{min-height:44px;display:flex;align-items:center;padding:.45rem .7rem;border:1px solid var(--site-border-strong,#3f5d82);border-radius:9px;list-style:none;cursor:pointer;color:var(--site-text,#f8fafc);font-weight:700;font-size:.8rem;background:var(--site-surface-solid,#111827)}.mep-access-menu>summary::-webkit-details-marker{display:none}
.mep-access-menu>.cr-verified-access-actions{position:absolute;right:0;top:calc(100% + .4rem);width:min(320px,calc(100vw - 2rem));padding:.5rem;display:grid;gap:.35rem;background:var(--site-surface-solid,#111827);border:1px solid var(--site-border-strong,#3f5d82);border-radius:12px;box-shadow:var(--site-shadow-soft);z-index:90}.mep-access-menu>.cr-verified-access-actions>a{min-height:44px;display:flex;align-items:center;justify-content:center;box-sizing:border-box;padding:.5rem;color:var(--site-text,#f8fafc)}
.mep-nav-context nav{width:100%;gap:.45rem}.mep-nav-context a{font-size:.82rem}.mep-nav-context{margin-bottom:.5rem}.mep-course-links:empty{display:none}.mep-nav-page .bb-hero .bb-actions{margin-top:.75rem}
@media(max-width:780px){.mep2-navigation-page .cr-verified-access-detail{display:none}.mep-nav-context nav{gap:.3rem}.mep-nav-context a{font-size:.76rem;padding:.4rem .5rem}.mep-nav-context{margin-bottom:.4rem}.mep-nav-shell[data-mep-context="lesson"] .mep-area-options{grid-template-columns:repeat(3,minmax(0,1fr))}.mep-nav-shell[data-mep-context="lesson"] .mep-area-choice{min-height:75px;padding:.5rem}.mep-nav-shell[data-mep-context="lesson"] .mep-area-choice strong{font-size:.78rem}.mep-nav-shell[data-mep-context="lesson"] .mep-area-choice small{font-size:.73rem}.html-studio-page>.course-topbar>.course-topnav{display:none}}