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small{display:none}.brand{gap:7px}.brand strong{max-width:115px;line-height:1.05}.header-actions{gap:5px}.header-progress{height:40px;font-size:10px}.header-progress span{display:none}.reset-button{height:40px;font-size:8px}.hero h1{font-size:clamp(46px,14vw,58px)}.hero-copy>p{font-size:15px;line-height:1.62}.hero-actions{flex-direction:column;align-items:stretch}.hero-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.hero-stats strong{font-size:17px}.hero-stats span{letter-spacing:.06em;font-size:8px;line-height:1.35}.realms-section{padding-top:75px}.section-intro h2,.nush-section h2{font-size:42px}.grade-ribbon{scrollbar-width:none;scroll-snap-type:x mandatory;margin-right:-22px;padding:5px 22px 18px 0;display:flex;overflow-x:auto}.grade-ribbon::-webkit-scrollbar{display:none}.grade-ribbon button{scroll-snap-align:start;min-width:86px;height:82px}.realm-banner{padding:22px}.realm-title h2{font-size:28px}.realm-banner>button{width:100%;min-height:50px}.route-heading{flex-direction:column;align-items:flex-start;gap:8px}.chapter-heading{grid-template-columns:auto minmax(0,1fr);gap:10px}.chapter-heading h4{grid-area:auto;line-height:1.25}.mission-card{grid-template-columns:42px minmax(0,1fr);padding:20px 18px}.mission-index span{width:32px;height:38px}.mission-meta{flex-direction:column;align-items:flex-start;gap:4px}.mission-card h4{overflow-wrap:anywhere;font-size:24px;line-height:1.12}.mission-card>p{font-size:14px}.mission-foot{flex-direction:column;align-items:flex-start}.mission-foot small{font-size:9px}.mission-foot button{width:100%;min-height:48px;font-size:10px}.tool-grid,.competencies{grid-template-columns:minmax(0,1fr)}.lesson-header{grid-template-columns:minmax(0,1fr) auto}.lesson-progress-wrap{grid-area:2/1/auto/-1;display:none}.lesson-brand b{max-width:min(48vw,210px)}.phase-nav button{min-width:124px}.stage-content{padding-left:16px;padding-right:16px}.stage-content>h2{overflow-wrap:anywhere;font-size:40px;line-height:1.02}.brief-icon{width:92px;height:92px;font-size:44px;box-shadow:0 0 0 8px #f8f4eb,0 0 0 9px #d8cdb8}.mission-passport,.lesson-goals,.notebook-support,.reflection{grid-template-columns:minmax(0,1fr)}.mission-passport span{border-bottom:1px solid #d4c9b5;border-right:0}.mission-passport span:last-child{border-bottom:0}.lesson-goals article{min-height:0}.theory-scroll{padding:24px}.theory-scroll p{font-size:16px}.interaction-mode{grid-template-columns:38px minmax(0,1fr);padding:12px}.interaction-mode>span{width:36px;height:36px;font-size:19px}.interaction-mode p{font-size:13px;line-height:1.5}.board-question{padding:18px}.board-question h3{font-size:24px;line-height:1.18}.confidence-picker{grid-template-columns:minmax(0,1fr);display:grid}.answer-grid button{padding:14px 12px}.confidence-picker button{text-align:left;border-radius:4px;min-height:46px}.vote-row button{min-height:48px}.board-extras textarea{min-height:100px}.notebook-sheet{min-height:340px;padding:35px 20px 28px 58px}.sheet-margin{left:43px}.notebook-sheet h2{overflow-wrap:anywhere;font-size:28px}.reflection b{grid-column:auto}.stage-next,.complete-button{width:100%;min-height:54px;padding:12px 16px}.stage-next b,.complete-button b{margin-left:8px}}@media (width<=430px){.topbar .brand>span:last-child{display:none}.topbar .brand{flex:0 0 36px;width:36px}.header-actions{min-width:0}}@media (width<=380px){.topbar{padding-left:10px;padding-right:10px}.brand-shield{width:32px;height:38px}.header-progress,.reset-button{padding:0 7px}.hero{padding-left:18px;padding-right:18px}.hero h1{font-size:45px}.hero-stats{gap:6px}.hero-stats strong{font-size:15px}.realms-section,.missions-section{padding-left:16px;padding-right:16px}.chapter-jump{margin-left:-16px;margin-right:-16px;padding-left:16px;padding-right:16px}.chapter-jump a{min-width:195px}.realm-banner{grid-template-columns:60px minmax(0,1fr);gap:18px;padding:18px}.realm-crest{width:60px;height:76px}.realm-crest span{font-size:32px}.phase-nav button{min-width:118px}.lesson-brand>span{display:none}.lesson-brand b{max-width:62vw}}@media (width<=640px){.topbar{height:calc(58px + env(safe-area-inset-top));padding:env(safe-area-inset-top) 12px 0}.topbar .brand{flex:0 0 32px;gap:0;width:32px}.topbar .brand>span:last-child{display:none}.topbar .brand-shield{width:32px;height:38px;font-size:11px}.header-actions{gap:6px;min-width:0;margin-left:auto}.header-progress,.reset-button{height:36px;min-height:36px}.header-progress{padding:0 9px;font-size:10px}.reset-button{padding:0 10px;font-size:8px}.hero{min-height:max(680px,100svh);padding:calc(88px + 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span{font-size:31px}.realm-title h2{margin-top:5px;font-size:25px;line-height:1.08}.realm-title p{font-size:12px;line-height:1.4}.realm-description{margin-top:2px}.realm-description p{margin-bottom:13px;font-size:13px;line-height:1.55}.realm-banner>button{min-height:46px;padding:12px 15px}.route-heading{gap:5px;margin:34px 0 16px}.route-heading h3{font-size:19px;line-height:1.3}.chapter-jump{z-index:auto;-webkit-backdrop-filter:none;backdrop-filter:none;scroll-snap-type:none;background:0 0;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:0 0 28px;padding:0;display:grid;position:static;top:auto;overflow:visible}.chapter-jump a{scroll-snap-align:none;grid-template-columns:30px minmax(0,1fr);gap:8px;width:100%;min-width:0;min-height:66px;padding:10px}.chapter-jump b{font-size:12px;line-height:1.25}.chapter-jump small{display:none}.mission-chapters{gap:36px}.mission-chapter{scroll-margin-top:calc(72px + env(safe-area-inset-top))}.chapter-heading{margin-bottom:12px;padding:11px 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article{min-height:145px;padding:20px}.competencies article{min-height:0;padding:22px 18px}.lesson-shell{grid-template-rows:64px 54px minmax(0,1fr)}.lesson-header{gap:8px;padding:0 10px}.lesson-brand>span{width:31px;height:37px;font-size:14px}.lesson-brand small{font-size:7px}.lesson-brand b{max-width:min(60vw,230px);font-size:13px}.lesson-header>button{width:40px;height:40px;min-height:40px}.phase-nav{scroll-snap-type:none;grid-template-columns:repeat(5,minmax(0,1fr));gap:4px;padding:6px;display:grid;overflow:visible}.phase-nav button{scroll-snap-align:none;border:0;border-radius:4px;grid-template-columns:minmax(0,1fr);place-items:center;min-width:0;min-height:42px;padding:4px}.phase-nav button>span{width:29px;height:29px}.phase-nav button b,.phase-nav button i{display:none}.stage-content{padding:28px 14px calc(52px + env(safe-area-inset-bottom))}.stage-content>h2{font-size:clamp(32px,10vw,40px);line-height:1.06}.briefing-stage>p{font-size:15px;line-height:1.6}.mission-passport span{padding:15px}.teacher-cue{padding:14px;font-size:13px}.theory-scroll{padding:20px 16px}.board-question{padding:16px 14px}.board-question h3{font-size:22px}.answer-grid button{min-height:0;padding:13px 11px}.notebook-sheet{min-height:320px;padding:32px 15px 24px 50px}.sheet-margin{left:38px}.notebook-sheet h2{font-size:25px;line-height:1.3}footer{gap:18px;padding:30px 16px}footer .brand{min-width:0}}@media (width<=1050px){.mission-route{flex-direction:column;gap:72px;min-height:0;padding:78px 30px 62px;display:flex}.map-trail-desktop{display:none}.map-trail-mobile{display:block}.map-compass{width:48px;height:48px;font-size:25px;top:17px;right:20px}.mission-route .mission-card{width:calc(100% - 80px);min-height:0}.mission-route .mission-card:nth-of-type(odd){align-self:flex-start}.mission-route .mission-card:nth-of-type(2n){align-self:flex-end}}@media (width<=640px){.route-heading h3{font-size:18px}.chapter-heading{grid-template-columns:auto minmax(0,1fr) auto}.chapter-heading 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/* Touch-цілі (аудит доступності на дотик, 2026-09): мінімум 44px по висоті на пристроях з пальцем. */
@media (pointer: coarse) {
  .topbar .brand, .reset-button { min-height: 44px; }
}


/* Ландшафт телефона: фіксований хедер (68px) + липка навігація розділів (96px) займали ~46% висоти 360px. */
@media (orientation: landscape) and (max-height: 500px) and (max-width: 1023px) {
  .topbar { height: calc(52px + env(safe-area-inset-top)); }
  .chapter-jump { top: calc(56px + env(safe-area-inset-top)); padding-top: 4px; padding-bottom: 4px; }
  .chapter-jump a { min-height: 44px; padding-top: 4px; padding-bottom: 4px; }
  .chapter-jump small { display: none; }
}


/* Контраст тексту (аудит 2026-09): дрібний світлий текст на світлому фоні мав <4.5:1. */
.section-kicker { filter: brightness(0.58); }


/* Світла тема сайту: явно кажемо браузеру color-scheme: light — інакше режими примусового затемнення (Samsung Internet, Chrome Force Dark) інвертують кольори. */
:root { color-scheme: light; }