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(width<=1080px){.app-dashboard,.guide-layout{grid-template-columns:1fr}.guide-side{position:static}.mobile-store-list{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (height<=850px) and (width>=721px){.full-window-timer{grid-template-rows:auto minmax(0,1fr);gap:clamp(10px,2vh,18px);padding:clamp(12px,2.2vh,24px) clamp(18px,3vw,42px)}.full-window-top{width:min(1260px,100%)}.full-window-brand{gap:10px}.full-window-brand-mark{border-radius:12px;width:38px;height:38px}.full-window-brand strong{font-size:clamp(20px,2vw,24px)}.full-window-brand small{margin-top:3px;font-size:11px}.full-window-exit{padding:9px 14px;font-size:clamp(14px,1.8vw,18px)}.full-window-card{border-radius:clamp(22px,4vh,34px);align-self:center;gap:clamp(9px,1.7vh,16px);width:min(1260px,100%);padding:clamp(16px,3vh,30px) clamp(18px,3vw,42px)}.full-window-title .section-label{margin-bottom:2px;font-size:11px}.full-window-title h1{font-size:clamp(28px,5.8vh,46px);line-height:1}.full-window-clock{letter-spacing:-.075em;border-radius:clamp(22px,4vh,34px);padding:clamp(16px,2.8vh,28px) clamp(12px,2vw,24px);font-size:clamp(56px,min(8.4vw,15vh),112px);line-height:.95}.full-window-summary{gap:6px 10px;font-size:clamp(12px,1.9vh,14px);line-height:1.18}.full-window-summary .pill{padding:5px 8px}.full-window-note{display:none}}@media (height<=700px) and (width>=721px){.full-window-timer{gap:10px;padding-top:12px;padding-bottom:12px}.full-window-brand-mark{width:34px;height:34px}.full-window-brand strong{font-size:clamp(18px,1.8vw,22px)}.full-window-brand small{display:none}.full-window-exit{padding:8px 12px;font-size:14px}.full-window-card{gap:8px;padding:14px clamp(16px,2.6vw,28px)}.full-window-title h1{font-size:clamp(24px,5vh,38px)}.full-window-clock{padding:12px clamp(10px,1.8vw,18px);font-size:clamp(52px,min(7.8vw,13.5vh),96px)}.full-window-summary{gap:5px 8px;font-size:12px}}@media (height<=520px) and (width>=721px){.full-window-timer{grid-template-rows:auto auto;align-content:start}.full-window-card{align-self:start}}@media (width<=900px) and (width>=721px){.full-window-top{flex-wrap:wrap}.full-window-card{padding-left:clamp(14px,3vw,28px);padding-right:clamp(14px,3vw,28px)}.full-window-clock{font-size:clamp(52px,10vw,92px)}}@media (width<=720px){.app-shell{padding:14px}.timer-full-window-shell{padding:0}.topbar{flex-direction:column;align-items:flex-start;padding-left:0;padding-right:0}nav{justify-content:flex-start}.status-banner{align-items:flex-start}.timer-clock-card{padding:18px 12px 12px}.clock{font-size:clamp(36px,10.8vw,58px)}.timer-subinfo{font-size:11px}.sound-control{flex-direction:column;align-items:stretch}.sound-buttons{width:100%}.sound-buttons button{flex:1 1 0}.simple-steps,.metrics-grid,.principles,.direct-measure-form,.mobile-store-list{grid-template-columns:1fr}.full-window-timer{gap:14px;padding:14px}.full-window-top{flex-wrap:wrap;align-items:flex-start}.full-window-brand-mark{border-radius:12px;width:38px;height:38px}.full-window-exit{padding:10px 12px;font-size:13px}.full-window-card{border-radius:24px;padding:18px 12px}.full-window-title h1{font-size:clamp(24px,8vw,38px)}.full-window-clock{letter-spacing:-.08em;font-size:clamp(36px,10.8vw,68px)}.full-window-note{display:none}}@media (width<=430px){.brand strong{font-size:20px}.status-title{align-items:flex-start}.app-icon{border-radius:15px;width:50px;height:50px}.time-card{padding:16px}.clock{letter-spacing:-.075em}.guide-layout{margin-top:32px}.guide-tab{min-width:118px;min-height:42px;padding:0 15px}.mobile-guide-card{padding:16px}.mobile-store-link{grid-template-columns:72px minmax(0,1fr);gap:10px;padding:10px}.mobile-store-link img{width:72px;height:72px}.mobile-store-link strong{font-size:17px}}