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th:first-child{z-index:1;background:#fff;min-width:210px;position:sticky;left:0}.grade-table thead th:first-child{background:#f8faf6}.grade-table input{text-align:center;font-variant-numeric:tabular-nums;background:0 0;border-color:#0000;width:90px;padding:7px}.grade-table input:hover{border-color:var(--color-line)}.grade-table .total-column{text-align:center;background:#f1f6ed}.total-column strong{font-size:17px}.total-column small{font-size:10px;display:block}.low-score,.low-score input{color:var(--color-danger)!important;background:#fff0f0!important}.grade-help{border-top:1px solid var(--color-line);color:var(--color-muted);align-items:flex-start;gap:24px;padding:20px 24px;font-size:12px;display:flex}.grade-help span{white-space:nowrap;align-items:center;gap:7px;display:flex}.grade-help i{background:var(--color-danger);border-radius:50%;width:7px;height:7px}.grade-help p{max-width:600px;line-height:1.7}footer{border-top:1px solid var(--color-line);color:#6b796e;justify-content:space-between;padding:19px 40px;font-family:Georgia,serif;font-size:12px;display:flex}footer span{font-family:var(--font-sans);font-size:10px}.skip-link{z-index:100;background:#fff;padding:10px;position:fixed;top:-80px;left:10px}.skip-link:focus{top:10px}@media(min-width:1500px){main{padding-top:48px}.calendar-lesson strong{font-size:13px}.calendar-lesson small{font-size:11px}.calendar-lesson>span{font-size:12px}}@media(max-width:1150px){.sidebar{width:205px;padding-inline:15px}.brand-caption{font-size:10px}.workspace{margin-left:205px}.topbar{padding-inline:25px}.topbar>span>.muted,.topbar-divider{display:none}main{padding:28px 25px}.stat-card{gap:10px;padding:16px}.stat-card>div>span{font-size:11px}.month-title{flex-direction:column;align-items:flex-start;gap:6px}.class-grid{grid-template-columns:repeat(2,1fr)}h1{font-size:33px}}@media(max-width:760px){.app-shell{display:block}.sidebar{border-right:0;border-bottom:1px solid var(--color-line);width:100%;height:auto;padding:16px;position:static}.brand{font-size:26px}.brand-icon{width:32px;height:32px}.brand-caption,.nav-label,.sidebar-bottom{display:none}nav{flex-direction:row;justify-content:space-between;gap:3px;margin-top:17px}nav a{flex-direction:column;flex:1;gap:5px;padding:8px 6px;font-size:10px}nav a svg{width:19px}.workspace{margin:0}.topbar{gap:10px;height:54px;padding:0 18px;font-size:9px}.sync-button{max-width:230px;font-size:10px}main{padding:26px 18px}.page-heading{flex-wrap:wrap;gap:19px;margin-bottom:23px}h1{font-size:31px}.page-heading .muted{font-size:13px}.overview-grid{gap:8px;margin-bottom:20px}.stat-card{flex-direction:column;align-items:flex-start;gap:9px;padding:12px 8px}.stat-icon{border-radius:9px;width:34px;height:34px}.stat-card strong{font-size:23px}.stat-card strong small,.stat-card>div>span{font-size:10px}.calendar-toolbar{gap:8px;padding:16px 12px}.month-title h2{font-size:16px}.month-title span{font-size:10px}.view-pill{display:none}.calendar-legend{flex-direction:column;padding:12px}.calendar-onboarding{flex-wrap:wrap;gap:10px;padding:14px}.calendar-onboarding>svg{display:none}.calendar-onboarding a{margin:0}.class-grid{grid-template-columns:1fr}.lesson-row{flex-wrap:wrap;gap:10px;padding:14px}.lesson-day{min-width:100px}.lesson-details{min-width:130px}.lesson-row .icon-button{width:44px}.holiday-row{gap:9px;padding:15px}.holiday-row .stat-icon{display:none}.form-grid{gap:0 10px}.inline-form{flex-wrap:wrap;padding:18px}.inline-form label{min-width:160px}.section-title{gap:10px;padding:18px}.section-title h2{font-size:16px}.section-title a{font-size:11px}.grade-toolbar{flex-wrap:wrap;padding:18px}.grade-toolbar label{width:100%;min-width:0}.grade-help{flex-direction:column;gap:12px;padding:18px}.student-list{padding-inline:18px}.info-strip{padding:16px;font-size:12px}.empty{padding:45px 20px}.empty h2{font-size:24px}footer{padding:20px 18px}footer span{display:none}}@media(prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.login-page{background:radial-gradient(ellipse at 30% 20%,#e2eddd,transparent 60%),var(--color-canvas);place-items:center;min-height:100dvh;padding:25px;display:grid}.login-card{text-align:center;max-width:520px}.login-logo{background:var(--color-primary);color:#fff;border-radius:18px;place-items:center;width:72px;height:72px;margin-bottom:32px;display:inline-grid}.login-card h1{margin:20px 0;font-size:42px}.login-card>.primary{margin:32px 0 20px}.login-privacy{color:var(--color-muted);justify-content:center;align-items:center;gap:8px;font-size:12px;display:flex}.signout{background:0 0;width:100%;min-height:36px;margin-top:15px;font-size:11px}.mobile-signout{display:none}@media(max-width:760px){.mobile-signout{flex-shrink:0;min-height:36px;padding:4px;font-size:10px;display:inline-flex}.profile strong{overflow-wrap:anywhere}.topbar>span{display:none}.topbar .sync-button{margin-right:auto}}.language-select{cursor:pointer;flex-shrink:0;width:auto;min-height:44px}.login-card>.language-select{margin:0 auto 24px;display:block}.topbar>.language-select{padding:6px;font-size:12px}.tone-teal{--tone-bg:#e0f2ef;--tone-border:#378d88;--tone-text:#255e59;background:var(--tone-bg);color:var(--tone-text)}.tone-coral{--tone-bg:#f9e9df;--tone-border:#d17b5c;--tone-text:#80452e;background:var(--tone-bg);color:var(--tone-text)}.tone-indigo{--tone-bg:#e9ebf8;--tone-border:#747ab8;--tone-text:#484c85;background:var(--tone-bg);color:var(--tone-text)}.tone-pink{--tone-bg:#f7e6f0;--tone-border:#bd719b;--tone-text:#803b65;background:var(--tone-bg);color:var(--tone-text)}.tone-lime{--tone-bg:#f0f2dc;--tone-border:#8c9b43;--tone-text:#586322;background:var(--tone-bg);color:var(--tone-text)}.tone-cyan{--tone-bg:#e2f2f7;--tone-border:#479ab2;--tone-text:#2b6175;background:var(--tone-bg);color:var(--tone-text)}.tone-slate{--tone-bg:#eaf0f4;--tone-border:#7b899b;--tone-text:#46566b;background:var(--tone-bg);color:var(--tone-text)}.color-picker{border:0;margin:20px 0;padding:0}.color-picker legend{margin-bottom:12px;font-size:13px;font-weight:600}.color-swatches{grid-template-columns:repeat(6,44px);gap:10px;display:grid}.color-swatch{cursor:pointer;background:0 0;border-radius:50%;place-items:center;width:44px;height:44px;margin:0;padding:4px;display:grid;position:relative}.color-swatch input{opacity:0;cursor:pointer;width:44px;height:44px;margin:0;position:absolute;inset:0}.color-swatch>span{color:#fff;pointer-events:none;border-radius:50%;place-items:center;width:32px;height:32px;display:grid;box-shadow:inset 0 0 0 1px #00000010}.color-swatch:has(input:checked){box-shadow:0 0 0 2px var(--color-ink)}.color-swatch:has(input:focus-visible){outline-offset:3px;outline:3px solid #b67b27}.color-swatch:hover{background:var(--tone-bg)}.color-picker p{margin-top:12px;font-size:11px}@media(max-width:400px){.color-swatches{grid-template-columns:repeat(5,44px);gap:7px}.color-swatch,.color-swatch input{width:44px;height:44px}}.color-swatch svg{color:var(--color-ink);background:#fff;border-radius:50%;width:20px;height:20px;padding:2px}.schedule-list{flex-direction:column;gap:24px;display:flex}.schedule-card{overflow:hidden}.schedule-card-heading{border-bottom:1px solid var(--color-line);justify-content:space-between;align-items:center;gap:18px;padding:24px;display:flex}.schedule-card-heading p{color:var(--color-muted);flex-wrap:wrap;align-items:center;gap:8px;margin-top:8px;font-size:12px;display:flex}.schedule-card-heading h2{font-family:Georgia,serif;font-size:25px;font-weight:400}.schedule-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.schedule-week{background:var(--color-line);grid-template-columns:repeat(auto-fit,minmax(135px,1fr));gap:1px;display:grid}.schedule-weekday{background:#fff;min-width:0;padding:18px 12px}.schedule-weekday h3{margin-bottom:16px;font-size:12px}.schedule-slot{border-left:3px solid var(--tone-border);overflow-wrap:anywhere;border-radius:6px;flex-direction:column;gap:3px;margin-bottom:10px;padding:10px;display:flex}.schedule-slot small{font-size:10px}.schedule-slot strong{font-size:13px}.schedule-slot>span{font-size:11px}.day-free{color:var(--color-muted);font-size:12px}.schedule-editor{flex-direction:column;gap:24px;max-width:1120px;display:flex}.schedule-period{padding:24px}.schedule-period>label,.schedule-period .form-grid{max-width:540px}.schedule-period p{font-size:13px}.schedule-lessons .section-title{gap:16px}.schedule-lessons .section-title p{margin-top:7px;font-size:12px}.count-badge{white-space:nowrap;background:#edf2e8;border-radius:6px;padding:5px 9px;font-size:11px}.slot-list{padding:8px 24px}.lesson-slot-editor{border:0;border-bottom:1px solid var(--color-line);margin:12px 0;padding:12px 0 18px}.lesson-slot-editor legend{letter-spacing:.5px;color:var(--color-muted);font-size:11px;font-weight:600}.slot-fields{grid-template-columns:140px minmax(150px,1fr) 115px 115px 44px;align-items:end;gap:12px;display:grid}.slot-fields label{margin:0;font-size:12px}.slot-fields input,.slot-fields select{padding:10px 8px}.add-slot{border-style:dashed;margin:8px 24px 24px}.schedule-editor>.form-actions{border:0;margin-top:0;padding-top:0}@media(max-width:1100px){.slot-fields{grid-template-columns:1fr 2fr 1fr 1fr 44px;gap:8px}.schedule-week{grid-template-columns:repeat(auto-fit,minmax(125px,1fr))}}@media(max-width:760px){.schedule-card-heading{flex-direction:column;align-items:flex-start;padding:18px}.schedule-week{grid-template-columns:1fr 1fr}.schedule-weekday{padding:16px 12px}.schedule-period{padding:18px}.slot-list{padding:8px 18px}.slot-fields{grid-template-columns:1fr 1fr;gap:12px}.slot-fields label:nth-child(2){grid-area:2/1/auto/-1}.slot-fields .icon-button{grid-area:1/2;justify-self:end}.slot-fields label:first-child{grid-row:1}.schedule-lessons .section-title{align-items:flex-start}.add-slot{margin-left:18px}.schedule-period .form-grid{grid-template-columns:1fr}.schedule-period label{margin:15px 0}}.pwa-controls{background:var(--color-canvas);border-top:1px solid var(--color-line);padding:16px 24px}.pwa-controls:empty{display:none}.pwa-install,.pwa-update{justify-content:center;align-items:center;gap:16px;display:flex}.pwa-install{flex-wrap:wrap}.pwa-controls p{max-width:52ch;font-size:13px}.pwa-controls summary{cursor:pointer;min-height:44px;color:var(--color-primary);font-weight:600;line-height:44px;display:list-item}.pwa-controls details p{padding-bottom:12px}.pwa-update{z-index:50;border:1px solid var(--color-line);background:#fff;border-radius:12px;flex-wrap:wrap;justify-content:flex-start;width:min(560px,100% - 40px);max-height:calc(100dvh - 40px);padding:20px;position:fixed;bottom:20px;right:20px;overflow:auto;box-shadow:0 8px 32px #243c3426}.pwa-update>div{width:100%}.pwa-update p{margin-top:4px}@media(min-width:761px){.app-shell+.pwa-controls{margin-left:244px}}@media(min-width:761px)and (max-width:1150px){.app-shell+.pwa-controls{margin-left:205px}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}