/* Phase 4: warm reference-inspired visual language. Business and exam functionality is unchanged. */
#protected.pzb-v2-ready{--pzb-cream:#f7f5ee;--pzb-paper:#fffdfa;--pzb-ink:#193f40;--pzb-sage:#e9f0e6;--pzb-gold:#e2d0af;--pzb-border:#e5e6dc;background:var(--pzb-cream)!important;color:var(--pzb-ink)!important}
#protected.pzb-v2-ready>.pzb-v2-nav{background:#fffdfa!important;border-right:1px solid #e9e8dd!important;box-shadow:8px 0 34px #283f2410;padding-top:20px!important}
#protected.pzb-v2-ready>.pzb-v2-nav button{gap:12px!important;padding:13px!important;margin-bottom:4px;border-radius:13px!important;font-weight:560;transition:background .18s,transform .18s}
#protected.pzb-v2-ready>.pzb-v2-nav button:hover{transform:translateX(2px);background:#edf2e8!important}
#protected.pzb-v2-ready>.pzb-v2-nav button[aria-current=page]{background:linear-gradient(110deg,#205c59,#739e81)!important;box-shadow:0 7px 18px #27594a27;color:#fff!important}
.pzb-v4-icon{width:21px;height:21px;display:block;flex:none}.pzb-v2-shortcut-icon .pzb-v4-icon{width:23px;height:23px}.pzb-nav-icon{display:grid;place-items:center;min-width:26px!important}
#protected.pzb-v2-ready .pzb-home-quick{background:#fffdfa!important;border:1px solid var(--pzb-border)!important;border-radius:22px!important;padding:22px!important;box-shadow:0 14px 34px #384d3210!important}
#protected.pzb-v2-ready .pzb-v2-shortcuts{gap:14px!important}
#protected.pzb-v2-ready .pzb-v2-shortcut{min-height:88px!important;border-radius:16px!important;background:linear-gradient(140deg,#fffefa,#f4f7ef)!important;border:1px solid #e1e8df!important;box-shadow:0 6px 18px #183f3610!important;padding:14px 18px!important;transition:transform .2s,box-shadow .2s}
#protected.pzb-v2-ready .pzb-v2-shortcut:hover{transform:translateY(-3px);box-shadow:0 12px 28px #183f3620!important}
#protected.pzb-v2-ready .pzb-v2-shortcut-icon{width:49px;height:49px;min-width:49px;background:#e3eee2!important;color:#235d57;border-radius:14px!important}
#protected.pzb-v2-ready .pzb-v2-featured .course-card{border-radius:20px!important;box-shadow:0 15px 30px #384d3212!important}
#protected.pzb-v2-ready .pzb-v2-featured .pzb-v2-photo{height:145px!important}
#courseView.pzb-v4-course,#teacherView.pzb-v4-teacher{background:radial-gradient(ellipse at 76% -12%,#e7ede2 0,transparent 46%),#f7f5ee!important}
#courseView.pzb-v4-course .pzb-v3-course-top,#courseView.pzb-v4-course .pzb-v3-course-side,#courseView.pzb-v4-course .pzb-v3-course-center,#courseView.pzb-v4-course .pzb-v3-course-actions{background:#fffdfa!important;border:1px solid #e4e6dc!important;border-radius:22px!important;box-shadow:0 12px 36px #2b493213!important}
#courseView.pzb-v4-course .pzb-v3-course-shell{grid-template-columns:minmax(205px,245px) minmax(0,1fr) minmax(250px,300px)!important;gap:18px!important}
#courseView.pzb-v4-course .pzb-v3-course-preview{background:#f3f3e9!important;border:1px solid #e9e7dc!important;min-height:610px!important;padding:30px!important;gap:14px}
#courseView.pzb-v4-course .pzb-v3-course-preview h2{font-size:clamp(28px,2.7vw,42px)!important;color:#153e42}
#courseView.pzb-v4-course .pzb-v3-course-image{height:330px!important;object-fit:cover!important;border-radius:16px!important;box-shadow:0 14px 30px #28423220}
.pzb-v4-preview-indicator{align-self:flex-start;display:inline-flex;padding:8px 13px;border-radius:100px;background:#e1eee3;color:#2b6257;font-weight:740;font-size:12px}
#courseView.pzb-v4-course #courseSlides>button{border-bottom:1px solid #efeee7!important;border-radius:11px!important;font-size:13px!important;padding:13px!important}
#courseView.pzb-v4-course #courseSlides>button.pzb-v3-selected{background:#e8efe4!important}
#teacherView.pzb-v4-teacher .pzb-lesson-shell{grid-template-columns:minmax(210px,250px) minmax(0,1fr) minmax(280px,340px)!important;gap:17px!important}
#teacherView.pzb-v4-teacher .pzb-lesson-sidebar,#teacherView.pzb-v4-teacher .presentation-pane,#teacherView.pzb-v4-teacher .notes-pane,#teacherView.pzb-v4-teacher .teaching-mid,#teacherView.pzb-v4-teacher .pzb-v2-side-actions{background:#fffdfa!important;border:1px solid #e4e7db!important;border-radius:22px!important;box-shadow:0 14px 34px #28422d12!important}
#teacherView.pzb-v4-teacher .pzb-v2-main-slide{min-height:680px!important;padding:15px!important}
#teacherView.pzb-v4-teacher #teacherSlide{background:#fffefa!important;min-height:515px!important;border-color:#e8e8df!important}
#teacherView.pzb-v4-teacher .notes-copy{background:#fffdfa!important}
#teacherView.pzb-v4-teacher .notes-copy p{font-size:14px!important;line-height:1.78!important}
#teacherView.pzb-v4-teacher .note-tabs .tab.active{background:#dfecdf!important;color:#1f6058!important}
#teacherView.pzb-v4-teacher .slide-card{border-radius:14px!important;background:#f9f8f2!important}
#teacherView.pzb-v4-teacher .slide-card.selected{background:#eaf1e8!important}
#overlay.pzb-v3-dialog-layer .dialog{background:#fffdfa!important}
@media(max-width:1400px){#courseView.pzb-v4-course .pzb-v3-course-shell{grid-template-columns:minmax(185px,225px) minmax(0,1fr)!important}#courseView.pzb-v4-course .pzb-v3-course-actions{grid-column:2}#teacherView.pzb-v4-teacher .pzb-lesson-shell{grid-template-columns:minmax(170px,210px) minmax(0,1fr)!important}#teacherView.pzb-v4-teacher .pzb-lesson-right{grid-column:2}}
@media(max-width:850px){#courseView.pzb-v4-course .pzb-v3-course-shell,#teacherView.pzb-v4-teacher .pzb-lesson-shell{display:flex!important;flex-direction:column!important}#courseView.pzb-v4-course .pzb-v3-course-shell>*,#teacherView.pzb-v4-teacher .pzb-lesson-shell>*{width:100%!important}#courseView.pzb-v4-course .pzb-v3-course-preview{min-height:380px!important}#courseView.pzb-v4-course .pzb-v3-course-image{height:220px!important}}