/* Stage 1 — application shell. Visual/navigation layer only; no business logic changes. */
:root{--shell-max:1480px;--shell-radius:22px;--shell-shadow:0 14px 40px rgba(79,67,43,.07)}
html{background:var(--bg)}
body{font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased}
button,input,textarea,select{font-family:inherit}
button{transition:transform .14s ease,background-color .14s ease,border-color .14s ease,box-shadow .14s ease,opacity .14s ease}
button:active{transform:scale(.98)}

.app-page{max-width:var(--shell-max);padding:18px 20px 46px;margin:0 auto}
.app-topbar{height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px;padding:0 4px}
.app-brand{display:flex;align-items:center;gap:11px;border:0;background:transparent;color:var(--text);padding:0;cursor:pointer;text-align:right}
.app-brand .brand-logo{width:42px;height:42px}
.app-brand-copy{display:grid;gap:1px}.app-brand-copy strong{font-size:17px;letter-spacing:-.2px}.app-brand-copy small{font-size:11px;color:var(--muted);font-weight:600}
.account-area{display:flex;align-items:center;gap:8px}.badge{padding:7px 11px;border:1px solid color-mix(in srgb,var(--border) 72%,transparent);background:color-mix(in srgb,var(--card) 72%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.icon-action{border:1px solid var(--border);background:color-mix(in srgb,var(--card) 86%,transparent);color:var(--text);height:36px;border-radius:12px;padding:0 11px;display:flex;align-items:center;gap:6px;cursor:pointer}.logout-label{font-size:12px;font-weight:700}

.app-shell{grid-template-columns:238px minmax(0,1fr);gap:18px;align-items:start}
.app-sidebar{position:sticky;top:16px;border-radius:var(--shell-radius);padding:12px;background:color-mix(in srgb,var(--card) 88%,transparent);box-shadow:var(--shell-shadow);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.primary-nav{display:grid;gap:5px}.nav-item{width:100%;border:0;background:transparent;color:var(--text);border-radius:12px;padding:10px 11px;display:flex;align-items:center;gap:10px;cursor:pointer;text-align:right;font-weight:700}.nav-item:hover{background:var(--accent-soft)}.nav-item.active{background:var(--accent-soft);color:var(--text)}
.nav-icon{width:22px;text-align:center;font-size:17px;line-height:1}
.side-section{margin-top:18px}.friend-section{padding-top:14px;border-top:1px solid color-mix(in srgb,var(--border) 72%,transparent)}.side-section-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.side-section-heading h3{font-size:12px;color:var(--muted);letter-spacing:.1px;margin:0}.mini-action{width:27px;height:27px;border:0;border-radius:9px;background:var(--accent-soft);color:var(--text);font-size:18px;cursor:pointer}
.app-sidebar .friend-search{border:0;background:color-mix(in srgb,var(--bg) 55%,var(--card));padding:9px 10px;border-radius:11px;font-size:12px}.friends-side-list{max-height:240px;overflow:auto;margin-top:6px}.app-sidebar .friend-row{padding:8px 4px;border-color:color-mix(in srgb,var(--border) 62%,transparent)}
.sidebar-create{display:grid;gap:7px}.side-primary,.side-secondary{width:100%;border-radius:12px;padding:10px 12px}.side-primary{box-shadow:0 5px 14px color-mix(in srgb,var(--accent) 22%,transparent)}
.tools-section{padding-top:14px;border-top:1px solid color-mix(in srgb,var(--border) 72%,transparent);display:grid;gap:2px}.sidebar-label{font-size:11px;color:var(--muted);font-weight:800;padding:0 5px 5px}.tool-link{border:0;background:transparent;color:var(--muted);text-align:right;padding:8px 7px;border-radius:10px;cursor:pointer;font-size:12px;font-weight:700;display:flex;align-items:center;gap:8px}.tool-link:hover{background:var(--accent-soft);color:var(--text)}

.app-content{background:color-mix(in srgb,var(--card) 44%,transparent);border:1px solid color-mix(in srgb,var(--border) 58%,transparent);border-radius:var(--shell-radius);padding:20px;box-shadow:var(--shell-shadow);min-height:calc(100vh - 100px)}
.calendar-header{margin-bottom:17px}.calendar-heading .title{font-size:30px;letter-spacing:-.65px;line-height:1.08}.calendar-heading .subtitle{font-size:13px;margin-top:6px}
.legend{justify-content:flex-end}.legend-item{background:color-mix(in srgb,var(--card) 76%,transparent);border-color:color-mix(in srgb,var(--border) 70%,transparent);padding:5px 8px;font-size:11px;backdrop-filter:blur(10px)}
.calendar-toolbar{border-top:1px solid color-mix(in srgb,var(--border) 55%,transparent);padding-top:13px;margin-bottom:15px}.segmented-control{padding:3px;background:color-mix(in srgb,var(--bg) 52%,var(--card));border-radius:12px;gap:2px}.segmented-control .view-btn{border:0;background:transparent;border-radius:9px;padding:7px 13px;font-size:12px}.segmented-control .view-btn.active{background:var(--card);color:var(--text);box-shadow:0 1px 4px rgba(79,67,43,.12)}
.date-nav{gap:4px}.date-nav .view-btn{border-color:color-mix(in srgb,var(--border) 72%,transparent);background:color-mix(in srgb,var(--card) 78%,transparent);font-size:12px}.date-nav .nav-arrow{width:34px;height:34px;padding:0;font-size:22px;font-weight:500}.today-btn{height:34px;padding:0 11px!important}.range-label{font-size:12px;color:var(--muted);min-width:132px}

.mobile-quick-actions,.mobile-bottom-nav{display:none}
#meetingFab{display:none!important}

.header-secondary-hidden{display:none!important}
.settings-action{width:44px;height:44px;border:1px solid color-mix(in srgb,var(--border) 82%,transparent);border-radius:12px;background:color-mix(in srgb,var(--card) 84%,transparent);color:var(--text);padding:0;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;font-weight:800;box-shadow:0 2px 8px rgba(79,67,43,.05)}
.settings-action:hover{background:var(--accent-soft);border-color:color-mix(in srgb,var(--accent) 24%,var(--border))}.settings-action-icon{font-size:16px;line-height:1;color:var(--accent)}.settings-action-label{display:none!important}
.settings-modal{width:min(430px,calc(100vw - 28px))}.settings-list{display:grid;gap:8px;margin-top:6px}.settings-row{width:100%;border:1px solid color-mix(in srgb,var(--border) 75%,transparent);border-radius:14px;background:color-mix(in srgb,var(--card) 88%,transparent);color:var(--text);padding:11px 12px;display:grid;grid-template-columns:34px minmax(0,1fr) 18px;align-items:center;gap:10px;text-align:right;cursor:pointer}.settings-row:hover{background:var(--accent-soft);border-color:color-mix(in srgb,var(--accent) 20%,var(--border))}.settings-row-icon{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:var(--accent-soft);font-weight:900;color:var(--accent)}.settings-row-icon.theme-trigger-dot{width:34px;height:34px;border:8px solid var(--accent-soft);background:var(--accent);border-radius:11px}.settings-row-copy{display:grid;gap:2px}.settings-row-copy strong{font-size:13px}.settings-row-copy small{font-size:11px;color:var(--muted);font-weight:600}.settings-row-arrow{font-size:20px;color:var(--muted)}.settings-logout{width:100%;margin-top:14px;min-height:44px}
.tools-section [onclick*="openGoogleCalendarModal"],.tools-section .theme-trigger{display:none!important}
.mobile-quick-actions #googleCalendarBtn,.mobile-quick-actions .theme-trigger{display:none!important}
.mobile-tools-grid [onclick*="runMobileTool('google')"],.mobile-tools-grid [onclick*="runMobileTool('theme')"]{display:none!important}

/* Desktop comparison is a first-class action directly under Find Common Time. */
@media(min-width:981px){
  .app-sidebar .tools-section{margin-top:7px;padding-top:0;border-top:0;gap:0}
  .app-sidebar .tools-section .sidebar-label{display:none}
  .app-sidebar .sidebar-create .side-secondary,
  .app-sidebar .tools-section .tool-link[onclick*="openCompareCalendarsModal"]{
    font-family:inherit;font-size:14px;font-weight:700;line-height:1.2
  }
  .app-sidebar .tools-section .tool-link[onclick*="openCompareCalendarsModal"]{
    width:100%;min-height:40px;padding:10px 12px;border:1px solid var(--border);border-radius:12px;
    background:var(--card);color:var(--text);display:flex;align-items:center;justify-content:center;text-align:center
  }
  .app-sidebar .tools-section .tool-link[onclick*="openCompareCalendarsModal"]:hover{
    background:var(--card);border-color:var(--accent);color:var(--text);transform:none
  }
}

/* Desktop: same visual language as mobile, centered as a floating card. */
#settingsModal.modal-bg{background:rgba(34,29,19,.28);pointer-events:auto;display:flex;align-items:center;justify-content:center;padding:18px}
#settingsModal.modal-bg.hidden{display:none!important}
#settingsModal>.settings-modal{position:relative!important;left:auto!important;top:auto!important;transform:none!important;width:min(430px,calc(100vw - 36px))!important;max-height:min(82vh,760px);border:1px solid var(--border);border-radius:24px;padding:24px 16px 18px;box-shadow:0 22px 60px rgba(49,42,27,.24);overflow:auto}
#settingsModal>.settings-modal::before{content:'';display:block;width:38px;height:4px;border-radius:999px;background:var(--border);margin:-13px auto 12px}
#settingsModal:not(.hidden)>.settings-modal{animation:cfPopoverIn .18s cubic-bezier(.2,.8,.2,1) both!important;transform-origin:center}
#settingsModal.is-closing>.settings-modal{animation:cfPopoverOut .16s ease-in both!important}

@media(max-width:980px){
  .app-page{padding:10px 12px 96px}.app-topbar{height:54px;margin-bottom:8px;padding:0 2px}.app-brand .brand-logo{width:36px;height:36px}.app-brand-copy small{display:none}.app-brand-copy strong{font-size:15px}.logout-label{display:none}.icon-action{width:36px;padding:0;justify-content:center}.badge{font-size:12px;padding:6px 9px}
  .app-sidebar{display:none}.app-shell{display:block}.app-content{padding:15px;border-radius:19px;min-height:calc(100vh - 156px);box-shadow:0 8px 28px rgba(79,67,43,.055)}
  .mobile-quick-actions{display:flex;gap:6px;overflow-x:auto;padding:2px 1px 10px;scrollbar-width:none}.mobile-quick-actions::-webkit-scrollbar{display:none}.mobile-quick-actions button{flex:0 0 auto;border:1px solid color-mix(in srgb,var(--border) 70%,transparent);background:color-mix(in srgb,var(--card) 78%,transparent);color:var(--text);border-radius:999px;padding:7px 10px;font-size:11px;font-weight:700;backdrop-filter:blur(12px)}
  .mobile-bottom-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;z-index:40;left:12px;right:12px;bottom:max(10px,env(safe-area-inset-bottom));height:64px;padding:6px;background:color-mix(in srgb,var(--card) 83%,transparent);border:1px solid color-mix(in srgb,var(--border) 72%,transparent);border-radius:20px;box-shadow:0 12px 34px rgba(79,67,43,.18);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px)}
  .mobile-bottom-nav button{border:0;background:transparent;color:var(--muted);border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;cursor:pointer}.mobile-bottom-nav button>span{font-size:19px;line-height:1}.mobile-bottom-nav button small{font-size:9px;font-weight:800}.mobile-bottom-nav .mobile-create{background:var(--accent);color:#fff;box-shadow:0 4px 12px color-mix(in srgb,var(--accent) 25%,transparent)}
}

@media(max-width:700px){
  #settingsModal.modal-bg{align-items:flex-end;justify-content:center;padding:0}
  #settingsModal>.settings-modal{width:100%!important;max-height:min(88dvh,820px);border:0;border-top:1px solid var(--border);border-radius:24px 24px 0 0;padding:24px 16px max(18px,env(safe-area-inset-bottom));box-shadow:0 -16px 50px rgba(49,42,27,.20)}
  #settingsModal:not(.hidden)>.settings-modal{animation:cfSheetIn .22s cubic-bezier(.2,.8,.2,1) both!important;transform-origin:center bottom}
  #settingsModal.is-closing>.settings-modal{animation:cfSheetOut .17s ease-in both!important}
}

@media(max-width:560px){
  .app-page{padding-left:8px;padding-right:8px}.app-content{padding:12px 9px;border-radius:17px}.calendar-header{gap:10px;margin-bottom:12px}.calendar-heading .title{font-size:25px}.calendar-heading .subtitle{font-size:12px}.legend{gap:5px}.legend-item{font-size:10px;padding:4px 7px}
  .calendar-toolbar{padding-top:10px;gap:9px}.view-switch{width:100%}.segmented-control .view-btn{flex:1}.date-nav{width:100%;justify-content:center}.range-label{order:-1;width:100%;text-align:center;margin-bottom:2px}
  .mobile-bottom-nav{left:8px;right:8px}.account-area{gap:6px}.badge{max-width:96px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.settings-modal .settings-row{min-height:58px}
}

@media(max-width:400px){.app-brand-copy{display:none}.badge{max-width:88px}}