:root{--zebra-primary: #17212b;--zebra-accent: #e53935;--zebra-background: #f6f8fa;--zebra-border: #b2bec8;--zebra-muted: #405466;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--control-height: 44px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--zebra-primary);background:var(--zebra-background);font-synthesis:none}*{box-sizing:border-box}html,body,#app{height:100%;min-height:100%}body{min-height:100vh;min-height:100svh;margin:0}button{min-height:var(--control-height);padding:.35rem .75rem;border:1px solid var(--zebra-border);border-radius:12px;background:#fff;color:var(--zebra-primary);font:inherit;font-size:16px;font-weight:550;cursor:pointer}button:hover{background:#eef3f7}button:focus-visible{outline:3px solid #76a9fa;outline-offset:2px}button:disabled{opacity:.6;cursor:wait}.app{width:min(100%,1280px);height:100vh;height:100dvh;min-height:100vh;min-height:100svh;margin:auto;padding:calc(12px + env(safe-area-inset-top)) calc(16px + env(safe-area-inset-right)) calc(12px + env(safe-area-inset-bottom)) calc(16px + env(safe-area-inset-left));display:flex;flex-direction:column}header{margin-bottom:var(--space-1);min-width:0}.header-top{display:flex;justify-content:space-between;align-items:center;gap:var(--space-2);min-width:0}h1{margin:0;font-size:22px;line-height:1.2;font-weight:700}.user-name{display:flex;align-items:center;gap:7px;min-width:0;max-width:100%;margin-top:6px;font-size:17px;line-height:1.2;font-weight:600;color:#26384a}.user-name-label{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-color-marker{display:inline-block;flex:0 0 12px;width:12px;height:12px;border:1px solid #526171;border-radius:50%}.logout-button{min-width:64px}.login{max-width:34rem;padding:24px;background:#fff;border-radius:16px;text-align:center}.zebra-mark{display:block;width:48px;height:48px;margin:0 auto 12px;object-fit:contain}.app-main{flex:1 1 auto;min-height:0;display:flex;flex-direction:column;position:relative}.calendar-selector-row{display:flex;align-items:center;gap:var(--space-2);min-width:0;margin:var(--space-2) 0 var(--space-3)}.calendar-selector-row .calendar-selector{flex:0 1 auto}.visibility-mode{margin:4px 0 8px;padding:8px;border:1px solid var(--zebra-border);border-radius:8px}.visibility-mode legend{padding:0 4px;color:var(--muted);font-size:.78rem;font-weight:700;text-transform:uppercase}.visibility-mode-option{display:flex;align-items:center;gap:8px;min-height:34px;padding:2px 4px;cursor:pointer;white-space:nowrap}.visibility-mode-option input{width:16px;height:16px;accent-color:var(--accent)}.toolbar-spacer{flex:1 1 auto;min-width:8px}.calendar-selector{position:relative;z-index:5;width:fit-content;max-width:100%;min-width:0}.selector-button{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;min-height:var(--control-height);padding:.35rem .75rem;border:1px solid var(--zebra-border);border-radius:12px;background:#fff;cursor:pointer;font-size:16px;font-weight:550;list-style:none}.selector-button>span:first-child{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.selector-button::-webkit-details-marker{display:none}.selector-menu{position:absolute;top:calc(100% + 4px);left:0;min-width:16rem;max-width:min(24rem,calc(100vw - 32px));max-height:min(70vh,32rem);overflow:auto;padding:6px;background:#fff;border:1px solid var(--zebra-border);border-radius:12px;box-shadow:0 5px 20px #17212b22}.selector-actions{display:flex;gap:5px;padding:3px 4px 7px;border-bottom:1px solid #e1e7ec}.selector-actions button{flex:1;min-height:36px;padding:.25rem .35rem;font-size:14px}.selector-title{padding:6px 6px 3px;color:#526171;font-size:12px;font-weight:750;letter-spacing:.06em;text-transform:uppercase}.selector-item{display:flex;align-items:center;gap:8px;min-height:40px;padding:6px;border-radius:8px;cursor:pointer;font-size:16px}.selector-item:hover{background:#eef3f7}.selector-item input{margin:0}.color-dot{display:inline-block;flex:0 0 auto;width:10px;height:10px;border-radius:50%;border:1px solid #526171}.refresh-button{flex:0 0 auto;min-width:var(--control-height);padding:.35rem .75rem}.refresh-label{display:inline}.calendar-section{flex:1 1 auto;min-height:0;display:flex;flex-direction:column}.calendar-toolbar{display:flex;flex-direction:column;gap:var(--space-2);margin:0 0 var(--space-2)}.date-navigation{display:grid;grid-template-columns:44px minmax(0,1fr) 44px auto;align-items:center;gap:var(--space-2);width:100%;min-width:0}.period-title{flex:1 1 auto;min-width:0;text-align:center;font-size:17px;line-height:1.2;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.period-nav-button{flex:0 0 44px;width:44px;height:44px;padding:0;font-size:27px;line-height:1}.today-button{flex:0 0 auto}.view-actions{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));width:100%;padding:3px;gap:3px;border:1px solid #c4ced6;border-radius:14px;background:#e9eef2}.view-actions button{min-width:0;min-height:36px;border-color:transparent;border-radius:10px;background:transparent;padding:.25rem .35rem;font-size:15px;font-weight:600}.view-actions button:hover{background:#f7fafc}.view-actions button.active{border-color:#aebbc5;background:#fff;color:#0c3f68}.calendar-host{position:relative;flex:1 1 auto;height:0;min-height:18rem;display:flex;flex-direction:column;touch-action:pan-y pinch-zoom}.zebra-message{display:flex;align-items:center;gap:10px;color:#17324d;background:#eef6ff;border:1px solid #9fc4e8;border-radius:12px;line-height:1.35}.zebra-message--info{color:#17324d;background:#eef6ff;border-color:#9fc4e8}.zebra-message--warning{color:#5f4500;background:#fff8dc;border-color:#e4c86a}.zebra-message--error{color:#7d1f1f;background:#fff0f0;border-color:#e2aaaa}.zebra-message--success{color:#155d3b;background:#edf9f1;border-color:#9bd3b4}.zebra-message--overlay{position:absolute;inset:1px;z-index:4;justify-content:center;padding:24px;font-weight:650;text-align:center}.calendar-load-state{inset:auto 16px 16px;justify-content:flex-start;width:fit-content;max-width:calc(100% - 32px);padding:8px 12px;box-shadow:0 4px 16px #17212b22}.calendar-load-state.zebra-message--error{inset:1px;width:auto;max-width:none;padding:24px}.zebra-message button{min-height:38px}.calendar-host.event-drag-active,.calendar-host .fc-scroller.event-drag-active{touch-action:none!important;overscroll-behavior:none}.calendar-host>.fc,.calendar-host .fc-view-harness{height:100%;min-height:0}.calendar-host .fc{background:#fff;padding:5px;border:1px solid #e1e7ec;border-radius:12px}.calendar-host .fc-scroller{overflow:auto}.fc{min-width:0;font-size:15px}.fc .fc-timegrid-axis,.fc .fc-timegrid-slot-label{width:1%;white-space:nowrap;font-size:15px;font-variant-numeric:tabular-nums}.fc .fc-timegrid-axis-cushion,.fc .fc-timegrid-slot-label-cushion{max-width:none;white-space:nowrap}.fc-event{min-width:0;max-width:100%;border-radius:4px}.calendar-host .fc-event{touch-action:none!important;-webkit-user-select:none;user-select:none}.fc .fc-timegrid-event{container-type:inline-size;min-width:0;max-width:100%;overflow:hidden;box-sizing:border-box}.fc .fc-timegrid-event-harness{min-width:0;max-width:100%}.fc .fc-timegrid-event .fc-event-main{min-width:0;max-width:100%;height:100%;overflow:hidden;box-sizing:border-box;padding:0}.zebra-event-content{display:flex;flex-direction:column;min-width:0;max-width:100%;height:100%;overflow:hidden;box-sizing:border-box;padding:2px 3px}.zebra-event-text{display:flex;flex:1 1 auto;flex-direction:column;min-width:0;max-width:100%;overflow:hidden}.zebra-event-time,.zebra-event-title{display:block;min-width:0;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.zebra-event-time{flex:0 1 auto;font-size:12px;line-height:1.2;font-weight:500;opacity:.9}.zebra-event-title{flex:0 1 auto;font-size:14px;line-height:1.2;font-weight:650}.zebra-event-content.event--short,.zebra-event-content.event--very-short{padding-block:1px}.zebra-event-content.event--short .zebra-event-text,.zebra-event-content.event--very-short .zebra-event-text{flex-direction:row;align-items:center;gap:4px;min-height:0}.zebra-event-content.event--short .zebra-event-time,.zebra-event-content.event--very-short .zebra-event-time{flex:0 0 auto}.zebra-event-content.event--short .zebra-event-title,.zebra-event-content.event--very-short .zebra-event-title{flex:1 1 auto}.fc .fc-timegrid-col-events{min-width:0}.fc .fc-timegrid-event .fc-event-resizer{max-width:100%}.fc .fc-day-today{background:#fffaf0!important}.fc .fc-timegrid-now-indicator-line{border-color:var(--zebra-accent);border-width:2px}.fc .fc-col-header,.fc .fc-col-header-cell,.fc .fc-col-header-cell-cushion,.fc .fc-col-header-cell a{min-width:0;max-width:100%}.fc .fc-col-header-cell{overflow:hidden;border-inline-width:1px}.fc .fc-col-header-cell-cushion{display:block;width:100%;box-sizing:border-box;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:6px 3px;text-align:center;font-size:15px;font-weight:700}.fc .fc-day-header-weekday,.fc .fc-day-header-date{min-width:0;max-width:100%}.fc .fc-day-header-weekday,.fc .fc-day-header-date{display:inline}.fc .fc-day-header-date{margin-inline-start:.25em}.fc .fc-daygrid-day,.fc .fc-daygrid-day-frame,.fc .fc-daygrid-day-events,.fc .fc-daygrid-event-harness,.fc .fc-daygrid-event{min-width:0;max-width:100%}.fc .fc-daygrid-day,.fc .fc-daygrid-event{overflow:hidden}.fc .fc-daygrid-event .fc-event-main{min-width:0;max-width:100%;overflow:hidden}.fc .fc-daygrid-event .fc-event-title,.fc .fc-daygrid-event .fc-event-time{min-width:0;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.fc .zebra-month-event-content{flex-direction:column;justify-content:center;border-radius:3px}.toast{position:fixed;left:50%;bottom:calc(16px + env(safe-area-inset-bottom));z-index:20;transform:translate(-50%);max-width:calc(100% - 32px);padding:9px 12px;font-size:14px}.toast button{min-height:36px;padding:.2rem .45rem;color:inherit;background:transparent;border-color:currentColor}.modal-backdrop{position:fixed;inset:0;z-index:30;display:grid;place-items:center;padding:calc(16px + env(safe-area-inset-top)) calc(16px + env(safe-area-inset-right)) calc(16px + env(safe-area-inset-bottom)) calc(16px + env(safe-area-inset-left));background:#17212b66}.event-dialog{position:relative;width:min(28rem,100%);max-height:calc(100dvh - 32px - env(safe-area-inset-top) - env(safe-area-inset-bottom));overflow:auto;padding:24px 20px 22px;background:#fff;border:1px solid #d6dee5;border-radius:18px;box-shadow:0 8px 24px #0003}.modal-close{position:absolute;top:8px;right:8px;width:44px;height:44px;padding:0;border:0;background:transparent;font-size:28px;line-height:1}.event-dialog h2{max-width:calc(100% - 48px);margin:0 48px 14px 0;font-size:24px;line-height:1.2;font-weight:700;overflow-wrap:anywhere}.event-date,.event-source-date{margin:0 0 8px;color:var(--zebra-muted);font-size:17px;line-height:1.35;font-weight:600}.event-source-date{margin-top:-4px;font-size:15px;font-weight:500}.event-location,.event-description{margin:8px 0;font-size:17px;line-height:1.4;overflow-wrap:anywhere}.event-location{color:var(--zebra-muted)}.event-description{white-space:pre-wrap}.manager-add-button,.manager-primary-button,.manager-secondary-button,.manager-danger-button{min-height:38px;padding:7px 12px;border:1px solid #c8d3dd;border-radius:9px;background:#fff;font:inherit;cursor:pointer}.manager-add-button,.manager-primary-button{color:#fff;background:#1769aa;border-color:#1769aa}.manager-danger-button{color:#a92828;border-color:#e2aaaa}.manager-dialog{display:grid;gap:6px}.manager-dialog label{margin-top:3px;color:var(--zebra-muted);font-size:14px;font-weight:600}.manager-dialog .manager-recurrence-duration-row{display:flex;min-width:0;margin-top:3px;align-items:center;gap:8px;white-space:nowrap}.manager-dialog .manager-recurrence-duration-row input{flex:0 0 5rem;width:5rem}.manager-dialog .manager-recurrence-duration-row select{flex:0 0 auto;width:auto}.app-update-notice{justify-content:center;padding:8px 12px;border-radius:0;border-width:0 0 1px}.app-update-notice button{border-color:currentColor;border-radius:6px;padding:4px 10px;background:#fff;color:inherit;cursor:pointer}.manager-hint,.manager-error{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:8px;font-size:14px}.manager-dialog .manager-checkbox{display:flex;min-height:38px;margin-top:4px;align-items:center;gap:8px;color:var(--zebra-text);font-size:14px;font-weight:500;line-height:1.3;cursor:pointer}.manager-dialog .manager-checkbox input{width:18px;min-width:18px;height:18px;min-height:18px;margin:0;padding:0;accent-color:#1769aa;cursor:pointer}.manager-dialog input,.manager-dialog select,.manager-dialog textarea{width:100%;box-sizing:border-box;min-height:38px;padding:7px 9px;border:1px solid #bdc9d3;border-radius:8px;font:inherit}.manager-dialog textarea{min-height:72px;resize:vertical}.manager-dialog-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px;margin-top:8px}.manager-error{margin:5px 0 0}.manager-time-row{display:flex;width:100%;min-width:0;min-height:44px;align-items:center;justify-content:space-between;gap:8px;text-align:left}.manager-time-row span:first-child{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.manager-time-row span:last-child{flex:0 0 auto;color:var(--zebra-muted);font-size:13px;white-space:nowrap}.manager-combobox{position:relative}.manager-teacher-field{position:relative;display:flex;align-items:center}.manager-teacher-field .manager-combobox{flex:1 1 auto;min-width:0}.manager-teacher-field .manager-combobox>input{padding-right:48px}.teacher-swatch-trigger{position:absolute;right:2px;z-index:2;display:grid;place-items:center;width:44px;min-height:38px;padding:0;border:0;background:transparent}.teacher-swatch-trigger:hover{background:transparent}.teacher-palette{display:grid;gap:5px;margin-top:2px;padding:8px;border:1px solid var(--zebra-border);border-radius:10px;background:#fff;box-shadow:0 5px 20px #17212b22}.teacher-palette p{margin:0;color:var(--zebra-muted);font-size:13px}.teacher-palette-summary,.teacher-palette-legend{color:var(--zebra-muted);font-size:12px}.teacher-palette-legend{display:flex;flex-wrap:wrap;gap:8px}.teacher-palette-grid{display:grid;grid-template-columns:repeat(10,minmax(22px,1fr));gap:6px}.teacher-palette-option{position:relative;width:28px;min-height:28px;padding:0;border:2px solid #fff;border-radius:50%;box-shadow:0 0 0 1px #758392}.teacher-palette-option[aria-pressed=true]{outline:3px solid #1769aa;outline-offset:2px}.teacher-palette-option--occupied{cursor:not-allowed;box-shadow:0 0 0 2px #17212b,inset 0 0 0 2px #fff;opacity:1}.teacher-palette-option--occupied:after,.teacher-palette-option--current:after{position:absolute;inset:0;display:grid;place-items:center;font-size:13px;font-weight:800;color:#fff;text-shadow:0 1px 2px #17212bcc}.teacher-palette-option--occupied:after{content:"🔒"}.teacher-palette-option--current:after{content:"✓"}.manager-combobox-list{position:absolute;z-index:4;width:100%;max-height:14rem;overflow:auto;margin:3px 0 0;padding:3px;list-style:none;border:1px solid var(--zebra-border);border-radius:8px;background:#fff;box-shadow:0 5px 20px #17212b22}.manager-combobox-list li{display:flex;align-items:center;gap:1px;min-width:0;padding:7px 8px;border-radius:6px;cursor:pointer}.manager-combobox-list li strong{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.manager-combobox-list li:hover,.manager-combobox-list li:focus{background:#eef3f7}.manager-combobox-list small{color:var(--zebra-muted)}.manager-no-results{color:var(--zebra-muted);cursor:default!important}.manager-time-backdrop{z-index:40}@media(max-width:600px){.calendar-selector-row{margin-bottom:var(--space-2)}.calendar-selector-row .manager-add-button{position:fixed;right:calc(16px + env(safe-area-inset-right));bottom:calc(16px + env(safe-area-inset-bottom));z-index:25;border-radius:999px;box-shadow:0 5px 18px #17212b44}.manager-dialog{gap:4px}.manager-time-row{align-items:center;flex-direction:row}.calendar-host{min-height:max(18rem,calc(100svh - 17rem))}.fc .fc-col-header-cell-cushion{padding:5px 2px;font-size:14px}.fc .fc-timeGridWeek-view .fc-day-header-weekday,.fc .fc-timeGridWeek-view .fc-day-header-date{display:block;line-height:1.15}.fc .fc-timeGridWeek-view .fc-day-header-date{margin-inline-start:0}.fc .fc-timeGridWeek-view .fc-day-header-date{font-weight:600}.fc .fc-timegrid-event .fc-event-main{padding:0}.zebra-event-content{padding-inline:2px}}@media(max-width:360px){.app{padding-left:calc(12px + env(safe-area-inset-left));padding-right:calc(12px + env(safe-area-inset-right))}.calendar-selector-row{gap:6px}.refresh-button{min-width:0;padding-inline:8px}.date-navigation{grid-template-columns:44px minmax(0,1fr) 44px auto;gap:4px}.today-button{padding-left:8px;padding-right:8px}.period-title{font-size:16px}.view-actions button{padding-left:2px;padding-right:2px;font-size:14px}.calendar-selector-row .manager-add-button{width:44px;height:44px;padding:0;font-size:0}.calendar-selector-row .manager-add-button:before{content:"+";font-size:22px}}@container (max-width: 76px){.zebra-event-time{display:none}.zebra-event-title{font-size:13px}}@container (max-width: 44px){.zebra-event-content{padding-inline:2px}.zebra-event-title{font-size:12px;line-height:1.1}}@media(min-width:768px){.app{padding-top:calc(16px + env(safe-area-inset-top));padding-bottom:calc(16px + env(safe-area-inset-bottom))}header{margin-bottom:var(--space-2)}.calendar-selector-row{margin-bottom:var(--space-3)}.calendar-toolbar{gap:var(--space-2);margin-bottom:var(--space-3)}.date-navigation{grid-template-columns:44px auto 44px auto;width:max-content;max-width:100%;margin-inline-start:auto;gap:var(--space-2)}.date-navigation .period-title{max-width:min(42vw,34rem);text-align:left}.view-actions{max-width:560px;align-self:flex-end}.calendar-host .fc{padding:8px}.modal-backdrop{padding:24px}}@media(display-mode:standalone){.app{padding-top:calc(16px + env(safe-area-inset-top));padding-bottom:calc(16px + env(safe-area-inset-bottom))}}@media(orientation:landscape)and (max-width:767px){.app{padding-top:calc(8px + env(safe-area-inset-top));padding-bottom:calc(8px + env(safe-area-inset-bottom))}header{margin-bottom:var(--space-1)}.user-name{margin-top:2px}.calendar-selector-row{margin-top:var(--space-1);margin-bottom:var(--space-2)}.calendar-toolbar{gap:var(--space-1);margin-bottom:var(--space-2)}.calendar-host{min-height:18rem}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}.manager-date-time-pair{display:grid;grid-template-columns:minmax(0,1fr) minmax(5.25rem,.55fr);gap:8px;min-width:0}.manager-date-time-pair>*{min-width:0;max-width:100%}.manager-weekly-days{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:4px}.manager-weekly-days label{min-height:42px;display:grid;place-items:center;border:1px solid var(--border, #d7dce2);border-radius:8px;cursor:pointer}.manager-weekly-days label.active{background:#e8f5f3;border-color:#009688;color:#00695c}.manager-weekly-days input{position:absolute;opacity:0;pointer-events:none}.teacher-color-swatch{display:inline-block;flex:0 0 auto;width:16px;height:16px;border-radius:50%;margin-inline-end:7px;border:2px solid #fff;box-shadow:0 0 0 1px #aab3bd;vertical-align:middle}@media(max-width:360px){.manager-weekly-days{gap:2px}.manager-weekly-days label{min-height:38px;font-size:.85rem}}@media(max-width:767px){.manager-date-time-pair{grid-template-columns:minmax(0,1fr) minmax(5.25rem,.55fr);gap:6px}.manager-time-dialog{width:min(100%,34rem);max-width:calc(100vw - 16px)}}