:root{color-scheme:light;--color-canvas:#f8f2e9;--color-surface:#fffaf3;--color-surface-raised:#fffdf9;--color-text:#2d2723;--color-text-muted:#6c625b;--color-border:#dfd3c6;--color-border-strong:#aa998b;--color-accent:#3657c8;--color-accent-hover:#2945aa;--color-accent-text:#ffffff;--color-accent-soft:#e9edff;--color-brand:#c76245;--color-brand-strong:#9e442f;--color-brand-ink:#5a2418;--color-brand-soft:#f9e1d6;--color-decorative:#c99435;--color-decorative-soft:#f3e7c7;--color-info:#315db5;--color-info-soft:#e9effc;--color-success:#216b4c;--color-success-soft:#e3f3eb;--color-warning:#8a5616;--color-warning-soft:#f8ecd9;--color-danger:#b4232d;--color-danger-hover:#941b24;--color-danger-soft:#fbe7e8;--color-focus:#315bea;--color-scrim:rgba(45,35,29,0.56);--font-body:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--font-display:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--font-mono:ui-monospace,"SFMono-Regular",Consolas,monospace;--text-xs:0.75rem;--text-sm:0.875rem;--text-md:1rem;--text-lg:1.25rem;--text-xl:clamp(1.75rem,4vw,2.5rem);--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem;--space-8:4rem;--radius-sm:0.5rem;--radius-md:0.75rem;--radius-lg:1rem;--radius-pill:999px;--shadow-raised:0 1px 2px rgba(68,48,35,0.08),0 8px 24px rgba(68,48,35,0.08);--shadow-popover:0 16px 40px rgba(62,43,31,0.16);--shadow-modal:0 24px 64px rgba(43,30,23,0.28);--duration-fast:120ms;--duration-standard:200ms;--ease-standard:cubic-bezier(0.2,0,0,1);--page-max:80rem;--page-gutter:clamp(1rem,3vw,2rem);--readable-measure:68ch;--safe-bottom:env(safe-area-inset-bottom,0px);--bg:var(--color-canvas);--surface:var(--color-surface);--ink:var(--color-text);--muted:var(--color-text-muted);--hairline:var(--color-border);--accent:var(--color-accent);--accent-ink:var(--color-accent-text);--accent-soft:var(--color-accent-soft);--good:var(--color-success);--good-soft:var(--color-success-soft);--warn:var(--color-warning);--warn-soft:var(--color-warning-soft);--danger-text:var(--color-danger);--radius:var(--radius-md);--shadow-1:var(--shadow-raised);--font:var(--font-body)}@media (prefers-color-scheme:dark){:root{color-scheme:dark;--color-canvas:#181411;--color-surface:#211c18;--color-surface-raised:#2a231e;--color-text:#f5eee8;--color-text-muted:#bfb2a8;--color-border:#463b34;--color-border-strong:#75645a;--color-accent:#aebcff;--color-accent-hover:#c2ccff;--color-accent-text:#10162d;--color-accent-soft:#252d4a;--color-brand:#f09a79;--color-brand-strong:#ffb093;--color-brand-ink:#ffd9ca;--color-brand-soft:#432920;--color-decorative:#e2b961;--color-decorative-soft:#3a3020;--color-info:#9ebcff;--color-info-soft:#202b42;--color-success:#86d5ae;--color-success-soft:#193126;--color-warning:#efbd78;--color-warning-soft:#372a19;--color-danger:#ff9da4;--color-danger-hover:#ffb6bb;--color-danger-soft:#3b2024;--color-focus:#b8c4ff;--color-scrim:rgba(8,6,5,0.72)}}*,:after,:before{box-sizing:border-box}body,html{min-height:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.55;-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}img,svg{max-width:100%}:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px}::selection{background:var(--color-accent-soft);color:var(--color-text)}@media (prefers-reduced-motion:reduce){*,:after,:before{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.ui-brand-lockup{display:inline-flex;align-items:center;gap:var(--space-2);color:var(--color-text)}.ui-brand-mark{width:2rem;height:2rem;flex:none;overflow:visible}.ui-brand-mark-field{fill:var(--color-brand-soft)}.ui-brand-mark-letter{fill:var(--color-brand-strong)}.ui-brand-mark-beat{fill:var(--color-decorative);stroke:var(--color-surface);stroke-width:1.5}.ui-brand-wordmark{color:var(--color-text);font:750 var(--text-lg)/1 var(--font-display);letter-spacing:-.035em}.ui-brand-lockup-compact .ui-brand-wordmark{display:none}.ui-brand-motif{width:min(11.25rem,45vw);height:auto;overflow:visible}.ui-brand-motif-sun{fill:var(--color-decorative-soft)}.ui-brand-motif-line{fill:none;stroke:var(--color-brand);stroke-linecap:round;stroke-width:4}.ui-brand-motif-line-back{stroke:var(--color-border-strong);stroke-width:2;opacity:.55}.ui-brand-motif-beat{fill:var(--color-decorative);stroke:var(--color-surface);stroke-width:2}.text-link,.ui-link{color:var(--color-accent);text-underline-offset:.18em}.ui-link{display:inline-flex;align-items:center;min-height:44px}.ui-link:hover{color:var(--color-accent-hover)}.ui-link-quiet,.ui-nav-item{color:var(--color-text-muted)}.ui-nav-item{min-height:44px;display:inline-flex;align-items:center;gap:var(--space-2);padding:0 var(--space-3);border-radius:var(--radius-sm);text-decoration:none}.ui-nav-item-current{color:var(--color-accent);background:var(--color-accent-soft);font-weight:650}.ui-button{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);min-width:44px;min-height:44px;padding:0 var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);font:600 var(--text-sm)/1.2 var(--font-body);text-decoration:none;cursor:pointer;transition:background var(--duration-fast) var(--ease-standard),border-color var(--duration-fast) var(--ease-standard),color var(--duration-fast) var(--ease-standard)}.ui-button:hover{border-color:var(--color-border-strong)}.ui-button:disabled{opacity:.58;cursor:not-allowed}.ui-button-sm{padding:0 var(--space-3);font-size:var(--text-xs)}.ui-button-lg{min-height:48px;padding:0 var(--space-5);font-size:var(--text-md)}.ui-icon-button{padding:0;aspect-ratio:1}.ui-button-primary{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-accent-text)}.ui-button-primary:hover{background:var(--color-accent-hover);border-color:var(--color-accent-hover)}.ui-button-danger{background:var(--color-danger);border-color:var(--color-danger);color:var(--color-accent-text)}.ui-button-danger:hover{background:var(--color-danger-hover);border-color:var(--color-danger-hover)}.ui-button-ghost{border-color:transparent;background:transparent;color:var(--color-accent)}.ui-spinner{width:1em;height:1em;border:2px solid;border-inline-end-color:transparent;border-radius:var(--radius-pill);animation:ui-spin var(--duration-standard) linear infinite}@keyframes ui-spin{to{transform:rotate(1turn)}}.ui-card,.ui-surface{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-4)}.ui-card,.ui-surface-raised{box-shadow:var(--shadow-raised)}.ui-surface-raised{background:var(--color-surface-raised)}.ui-card-head{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);margin-bottom:var(--space-3)}.ui-card-title{margin:0;color:var(--color-text);font:650 var(--text-md)/1.3 var(--font-display)}.ui-list{list-style:none;margin:0;padding:0}.ui-row{display:flex;align-items:center;gap:var(--space-3);min-height:56px;padding:var(--space-3);border-bottom:1px solid var(--color-border)}.ui-row-copy{display:grid;grid-gap:var(--space-1);gap:var(--space-1);min-width:0;flex:1 1}.ui-row-meta{color:var(--color-text-muted);font-size:var(--text-sm)}.ui-row-action{-webkit-margin-start:auto;margin-inline-start:auto}.ui-badge{display:inline-flex;align-items:center;width:-moz-fit-content;width:fit-content;min-height:24px;padding:0 var(--space-2);border-radius:var(--radius-pill);background:var(--color-border);color:var(--color-text);font-size:var(--text-xs);font-weight:650}.ui-badge-info{background:var(--color-info-soft);color:var(--color-info)}.ui-badge-success{background:var(--color-success-soft);color:var(--color-success)}.ui-badge-warning{background:var(--color-warning-soft);color:var(--color-warning)}.ui-badge-danger{background:var(--color-danger-soft);color:var(--color-danger)}.ui-avatar{display:inline-flex;align-items:center;justify-content:center;flex:none;overflow:hidden;border-radius:var(--radius-pill);background:var(--color-accent-soft);color:var(--color-accent);font-weight:700;object-fit:cover}.ui-avatar-sm{width:32px;height:32px;font-size:var(--text-xs)}.ui-avatar-md{width:44px;height:44px;font-size:var(--text-sm)}.ui-avatar-lg{width:64px;height:64px;font-size:var(--text-lg)}.ui-divider{border:0;border-top:1px solid var(--color-border);margin:var(--space-4) 0}.ui-skeleton{display:block;min-height:1em;border-radius:var(--radius-sm);background:linear-gradient(90deg,var(--color-border),var(--color-surface-raised),var(--color-border));background-size:200% 100%;animation:ui-shimmer 1.5s var(--ease-standard) infinite}@keyframes ui-shimmer{to{background-position-x:-200%}}.ui-empty{padding:var(--space-6) var(--space-4);text-align:center;color:var(--color-text-muted);border:1px dashed var(--color-border);border-radius:var(--radius-md)}.ui-empty-headline{margin:0 0 var(--space-2);font-weight:650;color:var(--color-text)}.ui-empty-body{font-size:var(--text-sm)}.ui-input{width:100%;min-height:44px;padding:.6rem .75rem;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);font:inherit}.ui-input:focus-visible{border-color:var(--color-focus)}.ui-input-invalid{border-color:var(--color-danger)}.ui-combobox,.ui-field{position:relative;display:grid;grid-gap:var(--space-2);gap:var(--space-2)}.ui-field-label,.ui-fieldset legend{color:var(--color-text);font-size:var(--text-sm);font-weight:650}.ui-field-error,.ui-field-hint{margin:0;font-size:var(--text-sm);color:var(--color-text-muted)}.ui-field-error{color:var(--color-danger)}.ui-fieldset{border:0;margin:0;padding:0;display:grid;grid-gap:var(--space-2);gap:var(--space-2)}.ui-choice,.ui-switch{display:inline-flex;align-items:center;gap:var(--space-2);min-height:44px;cursor:pointer}.ui-choice input{width:1.25rem;height:1.25rem;accent-color:var(--color-accent)}.ui-switch input{position:absolute;opacity:0;pointer-events:none}.ui-switch-track{width:2.75rem;height:1.5rem;padding:.15rem;border-radius:var(--radius-pill);background:var(--color-border-strong);transition:background var(--duration-fast) var(--ease-standard)}.ui-switch-track:after{content:"";display:block;width:1.2rem;height:1.2rem;border-radius:var(--radius-pill);background:var(--color-surface-raised);transition:transform var(--duration-fast) var(--ease-standard)}.ui-switch input:checked+.ui-switch-track{background:var(--color-accent)}.ui-switch input:checked+.ui-switch-track:after{transform:translateX(1.25rem)}.ui-switch input:focus-visible+.ui-switch-track{outline:3px solid var(--color-focus);outline-offset:2px}.ui-combobox-list{position:absolute;inset:calc(100% + var(--space-1)) 0 auto;z-index:30;max-height:18rem;overflow:auto;list-style:none;margin:0;padding:var(--space-1);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);box-shadow:var(--shadow-popover)}.ui-combobox-list li{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);min-height:44px;padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);cursor:pointer}.ui-combobox-list [aria-selected=true],.ui-combobox-option-active{background:var(--color-accent-soft);color:var(--color-accent)}.ui-combobox-empty{color:var(--color-text-muted);cursor:default!important}.ui-search{position:relative;display:grid;align-items:center}.ui-search .ui-input{padding-inline:2.75rem}.ui-search-icon{position:absolute;inset-inline-start:var(--space-3);z-index:1;color:var(--color-text-muted)}.ui-search .ui-icon-button{position:absolute;inset-inline-end:0}.ui-search-no-match{margin:var(--space-2) 0 0;color:var(--color-text-muted);font-size:var(--text-sm)}.ui-scrim{position:fixed;inset:0;z-index:40;display:flex;align-items:center;justify-content:center;padding:var(--space-4);background:var(--color-scrim)}.ui-dialog{width:min(28rem,100%);max-height:85vh;overflow:auto;padding:var(--space-5);border-radius:var(--radius-md);background:var(--color-surface-raised);box-shadow:var(--shadow-modal)}.ui-dialog-head{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);margin-bottom:var(--space-4)}.ui-dialog-title{margin:0;color:var(--color-text);font:650 var(--text-lg)/1.3 var(--font-display)}.ui-sheet{position:fixed;inset:0 0 0 auto;z-index:41;width:min(24rem,92vw);overflow:auto;padding:var(--space-5);background:var(--color-surface-raised);box-shadow:var(--shadow-modal)}.ui-popover-root{position:relative;display:inline-flex}.ui-popover{position:absolute;inset:calc(100% + var(--space-1)) 0 auto auto;z-index:30;min-width:12rem;padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);box-shadow:var(--shadow-popover)}.ui-tooltip-trigger{position:relative;display:inline-flex}.ui-tooltip{position:absolute;inset:auto auto calc(100% + var(--space-2)) 50%;z-index:35;width:max-content;max-width:16rem;padding:var(--space-2);border-radius:var(--radius-sm);background:var(--color-text);color:var(--color-surface);font-size:var(--text-xs);box-shadow:var(--shadow-popover);opacity:0;pointer-events:none;transform:translateX(-50%)}.ui-tooltip-trigger:focus .ui-tooltip,.ui-tooltip-trigger:hover .ui-tooltip{opacity:1}.ui-tabs{display:grid;grid-gap:var(--space-4);gap:var(--space-4)}.ui-tab-list{display:flex;gap:var(--space-1);border-bottom:1px solid var(--color-border);overflow-x:auto}.ui-tab-list button{min-height:44px;padding:0 var(--space-3);border:0;border-bottom:3px solid transparent;background:transparent;color:var(--color-text-muted);cursor:pointer;white-space:nowrap}.ui-tab-list button[aria-selected=true]{border-bottom-color:var(--color-accent);color:var(--color-accent);font-weight:650}.ui-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:var(--space-2)}.ui-menu{position:relative;display:inline-flex}.ui-menu-popover{position:absolute;inset:calc(100% + var(--space-1)) 0 auto auto;z-index:30;min-width:12rem;padding:var(--space-1);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);box-shadow:var(--shadow-popover)}.ui-menu-popover [role=menuitem]{display:flex;align-items:center;width:100%;min-height:44px;padding:0 var(--space-3);border:0;border-radius:var(--radius-sm);background:transparent;color:var(--color-text);cursor:pointer}.ui-menu-popover [role=menuitem]:hover{background:var(--color-accent-soft)}.ui-pagination{align-items:center;gap:var(--space-3)}.ui-page-header,.ui-pagination{display:flex;justify-content:space-between}.ui-page-header{align-items:flex-start;gap:var(--space-4);margin-bottom:var(--space-5)}.ui-page-header h1{margin:0;font:700 var(--text-xl)/1.1 var(--font-display);letter-spacing:-.025em}.ui-page-context{max-width:var(--readable-measure);margin:var(--space-2) 0 0;color:var(--color-text-muted)}.ui-page-primary{flex:none}.ui-visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}@media (max-width:40rem){.ui-page-header{display:grid}.ui-page-primary,.ui-page-primary .ui-button,.ui-sheet{width:100%}.ui-sheet{padding-bottom:calc(var(--space-5) + var(--safe-bottom))}}.assistant-bubble-fab{bottom:1.25rem;z-index:45;width:3.25rem;height:3.25rem;border-radius:999px;border:0;background:var(--accent);color:var(--accent-ink);font-size:1.4rem;line-height:1;cursor:pointer}.assistant-bubble-fab,.assistant-bubble-panel{position:fixed;right:1.25rem;box-shadow:var(--shadow-1)}.assistant-bubble-panel{bottom:5rem;z-index:46;width:min(26rem,calc(100vw - 2rem));max-height:min(70vh,40rem);display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius);overflow:hidden}.assistant-bubble-head{display:flex;align-items:center;justify-content:space-between;padding:.75rem .9rem;border-bottom:1px solid var(--hairline)}.assistant-bubble-head-actions{display:flex;align-items:center;gap:var(--space-1)}.assistant-bubble-thread{flex:1 1 auto;overflow:auto;padding:.6rem .9rem;max-height:26rem}.assistant-bubble-foot:empty{display:none}.assistant-bubble-foot{padding:.4rem .9rem .75rem;border-top:1px solid var(--hairline)}.assistant-bubble-panel .command{margin:0;padding:.6rem .9rem .4rem;border-top:1px solid var(--hairline)}.assistant-workspace{margin-top:var(--space-6);display:flex;flex-direction:column;min-height:30rem;background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);overflow:hidden}.assistant-workspace .assistant-bubble-thread{min-height:18rem;max-height:32rem}.assistant-workspace .command{margin:0;padding:var(--space-4);border-top:1px solid var(--hairline);align-items:flex-end}.assistant-workspace .command .ui-input{min-height:7rem;resize:vertical}.teacher-shell:has(.assistant-workspace)>.assistant-bubble-fab,.teacher-shell:has(.mission-control)>.assistant-bubble-fab{display:none}.assistant-jump-latest{align-self:center;margin:-2.75rem 0 .5rem;z-index:1;background:var(--surface);box-shadow:var(--shadow-1)}.assistant-activity{align-self:flex-start;display:flex;gap:var(--space-2);align-items:center;padding:var(--space-3);color:var(--muted)}.assistant-activity span:last-child{display:grid;grid-gap:.1rem;gap:.1rem}.assistant-activity small{font-size:var(--text-xs)}.assistant-activity-dot{width:.65rem;height:.65rem;border-radius:999px;background:var(--accent);animation:assistant-pulse 1.1s ease-in-out infinite alternate}.chat-msg.interrupted{border:1px solid var(--color-warning)}.chat-interrupted{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-xs)}@keyframes assistant-pulse{to{opacity:.35;transform:scale(.8)}}@media (prefers-reduced-motion:reduce){.assistant-activity-dot{animation:none}}.chat-suggestion{display:block;width:100%;text-align:left;padding:.4rem .6rem;margin-top:.3rem;border:1px solid var(--hairline);border-radius:var(--radius-sm);background:var(--surface);color:var(--accent);cursor:pointer}.app-header{border-bottom:1px solid var(--hairline);background:var(--surface)}.app-header .bar{max-width:760px;margin:0 auto;padding:.9rem 1.25rem;display:flex;align-items:baseline;gap:.6rem}.app-header .brand{font-weight:650;letter-spacing:-.01em}.app-header .tag{color:var(--muted);font-size:.85rem}.app-header .signout{margin-left:auto;display:flex;align-items:center;gap:.6rem}.app-header .teacher-account{margin:0 0 0 auto}.public-shell{min-height:100dvh;background:radial-gradient(circle at 92% 7%,var(--color-brand-soft),transparent 24rem),var(--color-canvas)}.public-shell-header{min-height:4rem;display:flex;align-items:center;padding:0 var(--space-5);border-bottom:1px solid var(--color-border);background:var(--color-surface)}.family-shell-brand,.operator-shell-brand,.public-shell-brand{min-height:44px;display:inline-flex;align-items:center;color:var(--color-text);text-decoration:none}.family-shell-brand:hover .ui-brand-wordmark,.operator-shell-brand:hover .ui-brand-wordmark,.public-shell-brand:hover .ui-brand-wordmark{color:var(--color-brand-strong)}.family-shell{min-height:100dvh;background:var(--color-canvas)}.family-shell-header{position:-webkit-sticky;position:sticky;top:0;z-index:30;min-height:4rem;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;grid-gap:var(--space-4);gap:var(--space-4);padding:var(--space-2) var(--space-5);border-bottom:1px solid var(--color-border);background:color-mix(in srgb,var(--color-brand-soft) 20%,var(--color-surface))}.family-shell-context{min-width:0;display:grid;color:var(--color-text-muted);font-size:var(--text-xs)}.family-shell-context strong{overflow:hidden;color:var(--color-text);text-overflow:ellipsis;white-space:nowrap}.family-shell-header .teacher-account{margin:0}.family-shell-content{padding-bottom:calc(4rem + var(--safe-bottom))}.family-shell-content .family-home{margin:0 auto;padding:var(--space-5) var(--space-4) calc(var(--space-6) + var(--safe-bottom))}.family-shell-nav{position:fixed;inset:auto 0 0;z-index:40;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding:var(--space-1) var(--space-2) calc(var(--space-1) + var(--safe-bottom));border-top:1px solid var(--color-border);background:var(--color-surface-raised);box-shadow:var(--shadow-raised)}.family-shell-nav a{min-height:44px;display:grid;place-items:center;border-radius:var(--radius-sm);color:var(--color-text-muted);font-size:var(--text-sm);text-decoration:none}.family-shell-nav a.active{background:var(--color-accent-soft);color:var(--color-accent);font-weight:650}.operator-shell{min-height:100dvh;background:var(--color-canvas)}.operator-shell-header{min-height:4.5rem;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;grid-gap:var(--space-5);gap:var(--space-5);padding:var(--space-2) var(--space-5);border-bottom:1px solid var(--color-border);background:var(--color-surface-raised)}.operator-shell-elevation{display:grid;grid-gap:var(--space-1);gap:var(--space-1)}.operator-shell-elevation span{color:var(--color-danger);font-size:var(--text-xs)}.operator-shell-header .teacher-account{margin:0}.operator-shell-nav{padding:var(--space-3) var(--space-5);border-bottom:1px solid var(--color-border);background:var(--color-surface)}.operator-shell-nav a{min-height:44px;display:inline-flex;align-items:center;color:var(--color-accent);font-weight:650;text-decoration:none}.first-run-page{max-width:40rem}.first-run-motif{display:block;margin:0 0 var(--space-5)}.first-run-actions{display:flex;flex-wrap:wrap;gap:var(--space-3);align-items:center;margin:var(--space-5) 0}.first-run-create{border-color:var(--color-accent);color:var(--color-accent)}.first-run-role-hint{margin:calc(var(--space-5) * -1 + var(--space-2)) 0 var(--space-5);color:var(--color-text-muted);font-size:var(--text-sm)}.first-run-platform-admin{display:grid;grid-gap:var(--space-1);gap:var(--space-1);margin-top:var(--space-5);padding-top:var(--space-4);border-top:1px solid var(--color-border)}.first-run-platform-admin span{color:var(--color-text-muted);font-size:var(--text-sm)}.studio-creation{display:grid;grid-gap:var(--space-4);gap:var(--space-4);margin-top:var(--space-5);padding:var(--space-5);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);box-shadow:var(--shadow-card)}.studio-creation h2,.studio-creation p{margin:0}.studio-creation-hint,.studio-creation-intro,.studio-creation-timezone{color:var(--color-text-muted)}.studio-creation-timezone{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-1);font-size:var(--text-sm)}.studio-creation-actions{display:flex;flex-wrap:wrap;gap:var(--space-3)}.studio-creation-hint{font-size:var(--text-sm)}.admin-studio-list{max-width:100%;overflow-x:auto}.teacher-shell{min-height:100dvh;display:grid;grid-template-columns:16rem minmax(0,1fr);background:var(--color-canvas)}.teacher-rail{position:-webkit-sticky;position:sticky;top:0;z-index:20;height:100dvh;min-width:0;display:flex;flex-direction:column;gap:var(--space-4);padding:var(--space-5) var(--space-3);-webkit-border-end:1px solid var(--color-border);border-inline-end:1px solid var(--color-border);background:linear-gradient(180deg,var(--color-brand-soft),transparent 10rem),var(--color-surface)}.teacher-rail-brand{padding-inline:var(--space-3)}.teacher-workspace{min-width:0;display:grid;grid-gap:var(--space-1);gap:var(--space-1);padding:var(--space-2) var(--space-3)}.teacher-workspace-label{color:var(--color-text-muted);font-size:var(--text-xs);font-weight:650;letter-spacing:.04em;text-transform:uppercase}.teacher-workspace-name{overflow:hidden;color:var(--color-text);font-size:var(--text-sm);text-overflow:ellipsis;white-space:nowrap}.teacher-shell-content{min-width:0}.studio-nav{display:grid;grid-gap:var(--space-1);gap:var(--space-1)}.studio-nav-link{min-height:44px;display:flex;align-items:center;padding:0 var(--space-3);border-radius:var(--radius-sm);color:var(--color-text-muted);font-size:var(--text-sm);text-decoration:none;white-space:nowrap}.studio-nav-link.active,.studio-nav-link:hover{background:var(--color-accent-soft);color:var(--color-accent)}.studio-nav-link.active{font-weight:650}.teacher-account{position:relative;margin-top:auto}.teacher-account-trigger{width:100%;justify-content:flex-start;min-width:0;color:var(--color-text)}.teacher-account-avatar{width:2rem;height:2rem;display:grid;flex:none;place-items:center;border-radius:var(--radius-pill);background:var(--color-accent-soft);color:var(--color-accent);font-size:var(--text-xs);font-weight:750}.teacher-account-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.teacher-account-menu{position:absolute;inset:auto 0 calc(100% + var(--space-2));z-index:32;min-width:14rem;padding:var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);box-shadow:var(--shadow-popover)}.teacher-account-identity{display:grid;grid-gap:var(--space-1);gap:var(--space-1);padding:var(--space-2) var(--space-3)}.teacher-account-identity span{overflow-wrap:anywhere;color:var(--color-text-muted);font-size:var(--text-xs)}.teacher-account-menu .ui-button{width:100%;justify-content:flex-start}.students-list{list-style:none;margin:1rem 0;padding:0}.student-row{display:flex;justify-content:space-between;align-items:center;gap:.75rem;padding:.6rem .8rem;border:1px solid var(--hairline);border-radius:var(--radius);background:var(--surface)}.student-row+.student-row{margin-top:.35rem}.student-notes{display:block;color:var(--muted);font-size:.82rem}.student-status{display:inline-block;margin-right:.5rem;padding:.1rem .5rem;border-radius:999px;font-size:.72rem;font-weight:600}.student-status-connected{background:var(--good-soft);color:var(--good)}.student-status-invited{background:var(--accent-soft);color:var(--accent)}.student-status-not_connected{background:var(--warn-soft);color:var(--warn)}.students-list{margin-top:0}.mg-group-label{margin:1.5rem 0 .4rem;font:600 .85rem/1.2 var(--font-display);letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}.mg-group-label:first-of-type{margin-top:.5rem}.calendar-page .studio-cal{margin-top:0}.studio-switcher{min-width:0;display:grid;grid-gap:var(--space-1);gap:var(--space-1)}.studio-switcher label{color:var(--color-text-muted);font-size:var(--text-xs);font-weight:650}.studio-switcher .ui-input{min-width:0;font-size:var(--text-xs)}.studio-switcher-error{margin:0;color:var(--color-danger);font-size:var(--text-xs);line-height:1.35}@media (max-width:47.99rem){.assistant-workspace{min-height:27rem;margin-inline:calc(-1 * var(--space-3));border-radius:var(--radius)}.assistant-workspace .assistant-bubble-thread{min-height:16rem;max-height:26rem}.assistant-bubble-panel{inset:0 0 calc(3.65rem + var(--safe-bottom));width:auto;max-height:none;border-width:0;border-radius:0}.assistant-bubble-thread{max-height:none}.assistant-bubble-fab.is-open{display:none}.family-shell-header,.public-shell-header{padding-inline:var(--space-3)}.family-shell-header{gap:var(--space-2)}.family-shell-brand .ui-brand-mark,.operator-shell-brand .ui-brand-mark,.teacher-rail-brand .ui-brand-mark{width:1.75rem;height:1.75rem}.family-shell-brand .ui-brand-wordmark,.operator-shell-brand .ui-brand-wordmark,.teacher-rail-brand .ui-brand-wordmark{font-size:var(--text-md)}.family-shell-context{text-align:center}.family-shell-header .teacher-account-trigger{width:44px;padding:0}.operator-shell-header{gap:var(--space-2);padding-inline:var(--space-3)}.operator-shell-elevation strong{font-size:var(--text-sm)}.operator-shell-elevation span{font-size:.66rem}.operator-shell-nav{padding-inline:var(--space-3)}.operator-shell-content>main{padding-inline:var(--space-3)!important}.admin-studio-list{overflow-x:visible}.admin-studio-table,.admin-studio-table tbody,.admin-studio-table td,.admin-studio-table tr{display:block;width:100%}.admin-studio-table thead{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.admin-studio-table tr{padding:var(--space-3);border:1px solid var(--color-border)!important;border-radius:var(--radius-md);background:var(--color-surface)}.admin-studio-table td{display:grid;grid-template-columns:minmax(5.5rem,.65fr) minmax(0,1.35fr);grid-gap:var(--space-3);gap:var(--space-3);padding:var(--space-2) 0!important;overflow-wrap:anywhere;text-align:left!important}.admin-studio-table td:before{content:attr(data-label);color:var(--color-text-muted);font-weight:650}.admin-studio-table .admin-studio-action{display:block;padding-top:var(--space-3)!important}.admin-studio-action button{width:100%;min-height:44px}.teacher-shell{display:block;min-height:100dvh}.teacher-rail{position:-webkit-sticky;position:sticky;height:auto;min-height:4rem;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;grid-gap:var(--space-2);gap:var(--space-2);padding:var(--space-2) var(--space-3);-webkit-border-end:0;border-inline-end:0;border-bottom:1px solid var(--color-border)}.teacher-rail-brand,.teacher-workspace{padding:0}.teacher-workspace-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.teacher-workspace-name{font-size:var(--text-xs);text-align:center}.teacher-workspace .studio-switcher label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.teacher-workspace .studio-switcher .ui-input{min-height:44px}.teacher-account{margin:0}.teacher-account-trigger{width:44px;padding:0}.teacher-account-name{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.teacher-account-menu{inset:calc(100% + var(--space-2)) 0 auto auto}.studio-nav{position:fixed;inset:auto 0 0;z-index:40;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;padding:var(--space-1) var(--space-1) calc(var(--space-1) + var(--safe-bottom));border-top:1px solid var(--color-border);background:var(--color-surface-raised);box-shadow:var(--shadow-raised)}.studio-nav-link{min-width:0;justify-content:center;padding:0 var(--space-1);font-size:.68rem;text-align:center}.teacher-shell-content{padding-bottom:calc(4rem + var(--safe-bottom))}.assistant-bubble-fab{bottom:calc(4.5rem + var(--safe-bottom))}.assistant-bubble-panel{bottom:calc(3.65rem + var(--safe-bottom))}}main.page{max-width:760px;margin:0 auto;padding:1.75rem 1.25rem 4rem}main.page.wide{max-width:1000px}h1{font-size:1.45rem;letter-spacing:-.01em;margin:0 0 .35rem}.lede{color:var(--muted);margin:0 0 1.5rem}.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.4rem}.field input[type=time],.field select{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius);padding:.5rem .7rem}.field input[type=time]:focus-visible,.field select:focus-visible{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}.field.row{display:flex;gap:1rem;flex-wrap:wrap}.field+.field{margin-top:.9rem}textarea{width:100%;min-height:96px;resize:vertical;padding:.7rem .8rem;font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius)}textarea:focus-visible{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}.actions{display:flex;gap:.6rem;margin-top:.9rem;flex-wrap:wrap}button{font:inherit;font-weight:600;padding:.55rem 1rem;border-radius:var(--radius);border:1px solid var(--accent);background:var(--accent);color:var(--accent-ink);cursor:pointer}button.secondary{background:var(--surface);color:var(--ink);border-color:var(--hairline)}button:disabled{opacity:.5;cursor:not-allowed}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.section-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:1.75rem 0 .6rem}.constraint-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.5rem}.constraint{display:flex;align-items:flex-start;gap:.65rem;padding:.7rem .85rem;background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius)}.constraint input[type=checkbox]{margin-top:.2rem;width:1rem;height:1rem;accent-color:var(--accent)}.constraint.discarded{opacity:.55}.constraint .type{font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:.82rem;color:var(--accent)}.constraint .from{color:var(--muted);font-size:.85rem;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.constraint .badge{margin-left:auto;font-size:.7rem;padding:.1rem .45rem;border-radius:20px;white-space:nowrap}.constraint .badge.hard{background:var(--accent-soft);color:var(--accent)}.constraint .badge.soft{background:var(--good-soft);color:var(--good)}.rejected{border:1px solid var(--warn);background:var(--warn-soft);border-radius:var(--radius);padding:.6rem .85rem;font-size:.88rem}.rejected .r-summary{font-weight:600}.rejected ul{margin:.3rem 0 0;padding-left:1.1rem;color:var(--muted)}.result{margin-top:1.5rem;border:1px solid var(--good);background:var(--good-soft);color:var(--ink);border-radius:var(--radius);padding:.85rem 1rem}.hint{color:var(--muted);font-size:.85rem;margin-top:.4rem}