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var(--border);border-radius:var(--radius-sm);background:var(--surface);min-width:100%;box-shadow:var(--shadow-lg);scrollbar-width:thin;scrollbar-color:#cbd5e1 transparent;max-height:min(280px,50vh);margin:0;padding:6px;list-style:none;position:absolute;top:calc(100% + 6px);left:0;right:0;overflow-y:auto}.custom-select__menu::-webkit-scrollbar{width:6px}.custom-select__menu::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:999px}.custom-select__option{border-radius:calc(var(--radius-sm) - 2px);width:100%;min-height:40px;color:var(--text);text-align:left;background:0 0;border:none;justify-content:space-between;padding:8px 10px;font-size:14px;font-weight:600}.custom-select__option:hover,.custom-select__option.is-active{background:var(--surface-muted)}.custom-select__option.is-selected{background:var(--primary-soft);color:var(--primary)}.custom-select--compact .custom-select__trigger{min-height:36px;padding:6px 2rem 6px 10px;font-size:13px}.custom-select--compact 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.lang-field__label{display:none}.mobile-header-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.mobile-logout-btn{width:40px;min-width:40px;min-height:40px;color:var(--danger);background:var(--danger-soft);border-color:#fecdd3;border-radius:999px;padding:0}.mobile-logout-btn:hover:not(:disabled){background:#ffe4e6;border-color:#fda4af}.logout-btn{color:#fff;background:#ffffff14;border-color:#fff3;justify-content:flex-start;width:100%}.app-main{min-width:0;padding-bottom:calc(var(--bottom-nav-h) + env(safe-area-inset-bottom));flex-direction:column;flex:1;display:flex}.mobile-header{padding:12px var(--page-pad);padding-top:max(12px, env(safe-area-inset-top));-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);z-index:50;background:#ffffffeb;justify-content:space-between;align-items:center;gap:12px;display:flex;position:sticky;top:0;box-shadow:0 1px #0f172a0a}.mobile-kicker{text-transform:uppercase;letter-spacing:.04em;color:var(--primary);margin:0;font-size:11px;font-weight:700}.mobile-user{color:var(--text);margin:2px 0 0;font-size:14px;font-weight:600}.app-content{flex:1;min-width:0}.bottom-nav{z-index:100;height:calc(var(--bottom-nav-h) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--surface);border-top:1px solid var(--border);justify-content:space-around;align-items:stretch;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -4px 20px #0f172a0f}.bottom-nav button{color:var(--text-muted);background:0 0;border:none;border-radius:0;flex-direction:column;flex:1;gap:4px;min-height:0;padding:8px 4px;font-size:11px;font-weight:600}.bottom-nav button.active{color:var(--primary);background:var(--primary-soft)}.page{padding:16px var(--page-pad) 24px;width:100%;max-width:1400px;margin:0 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6px;font-size:13px;font-weight:700}.participant-options{flex-direction:column;gap:6px;margin-top:8px;display:flex}.pagination-bar--compact{gap:8px;margin-top:8px;padding:8px 10px}.pagination-bar--compact .nav-chip{min-height:32px;padding:0 10px;font-size:12px}.pagination-bar--panel{margin-top:10px}.checkbox-row{align-items:center;gap:8px;font-size:13px;display:flex}.field-hint{color:var(--text-muted);margin:4px 0 0;font-size:12px}.field-hint--warn{color:#b45309}.toolbar-row{flex-wrap:wrap;justify-content:space-between;align-items:end;gap:12px;display:flex}.range-nav{flex-wrap:wrap;gap:8px;display:flex}.nav-chip{background:var(--surface-muted);border-radius:999px;min-height:38px;padding:0 12px;font-size:13px;font-weight:600}.nav-chip--today{background:var(--primary-soft);color:var(--primary);border-color:#b8e0eb}.sort-fields{flex-wrap:wrap;gap:10px;display:flex}.compact-label{min-width:140px;font-size:12px}.calendar-teacher-filter{min-width:min(200px,100%)}.calendar-page .main-column{width:100%;min-width:0}.workspace-grid{align-items:start;gap:16px;display:grid}.side-column{gap:12px;display:grid}.main-column{gap:16px;min-width:0;display:grid}.board-heading{justify-content:space-between;align-items:center;gap:8px;margin-bottom:14px;display:flex}.board-heading h2{margin:0;font-size:17px;font-weight:700}.schedule-board--backlog{background:#fafaff;border-color:#c7d2fe}.schedule-list{gap:12px;display:grid}.schedule-item{border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;background:var(--surface);gap:10px;padding:14px 16px;transition:border-color .15s,box-shadow .15s,transform .12s;display:grid}.schedule-item:hover{border-color:var(--border-strong);box-shadow:var(--shadow);transform:translateY(-1px)}.schedule-item:focus-visible{outline:3px solid color-mix(in srgb, var(--primary) 40%, transparent);outline-offset:2px}.schedule-main{justify-content:space-between;align-items:flex-start;gap:10px;display:flex}.schedule-main h3{margin:0;font-size:16px;font-weight:700}.schedule-time{color:var(--text-muted);margin:4px 0 0;font-size:13px}.schedule-meta{flex-wrap:wrap;gap:8px;display:flex}.meta-chip{background:var(--surface-muted);color:var(--text-muted);border-radius:999px;padding:4px 10px;font-size:12px}.meta-chip strong{color:var(--text)}.schedule-actions{flex-wrap:wrap;gap:8px;display:flex}.action-btn{border-radius:var(--radius-sm);background:var(--surface-muted);border-color:var(--border);flex:auto;min-width:0;min-height:40px;padding:6px 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h2{margin:0;font-size:17px;font-weight:700}.panel-heading.subheading{margin-top:16px;margin-bottom:10px}.panel-heading.subheading h2{font-size:15px}.schedule-form,.compact-form,.teacher-controls{gap:14px;min-width:0;display:grid}.collapsible-body .schedule-form{gap:16px}.form-section{border:none;gap:12px;min-width:0;margin:0;padding:0;display:grid}.form-section-title{text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin:0;font-size:12px;font-weight:800}fieldset.form-section{padding:0}fieldset.form-section legend.form-section-title{margin-bottom:4px;padding:0 2px}.form-field-label{color:#334155;font-size:13px;font-weight:600}.form-row-two{grid-template-columns:1fr 1fr;gap:12px;min-width:0;display:grid}.form-row-two>.form-field{min-width:0}.schedule-form input[type=datetime-local]{min-width:0;padding-left:10px;padding-right:10px;font-size:14px}.form-advanced{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-muted);overflow:hidden}.form-advanced summary{color:var(--text);cursor:pointer;justify-content:space-between;align-items:center;padding:12px 14px;font-size:13px;font-weight:700;list-style:none;display:flex}.form-advanced summary::-webkit-details-marker{display:none}.form-advanced summary:after{content:"+";color:var(--text-muted);font-size:18px;font-weight:400;line-height:1}.form-advanced[open] summary:after{content:"−"}.form-advanced-body{border-top:1px solid var(--border);gap:12px;padding:0 14px 14px;display:grid}.schedule-form-submit{margin-top:4px}.segmented{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);grid-template-columns:1fr 1fr;gap:0;padding:3px;display:grid;overflow:hidden}.segmented--mode{width:100%}.segmented button{border-radius:calc(var(--radius-sm) - 2px);min-height:42px;color:var(--text-muted);text-align:center;background:0 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16px;display:flex}.pagination-meta{color:var(--text-muted);text-align:center;flex:1;font-size:13px;font-weight:600}.user-card-grid{gap:12px;display:grid}.user-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.user-card-head{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.user-card-head h3{margin:0;font-size:16px}.user-card-email{color:var(--text-muted);word-break:break-all;align-items:center;gap:6px;margin:4px 0 0;font-size:13px;display:flex}.role-badge{white-space:nowrap;border-radius:999px;padding:4px 10px;font-size:11px;font-weight:800}.role-badge--admin{color:#92400e;background:#fef3c7}.role-badge--teacher{color:#1e40af;background:#dbeafe}.role-badge--student{color:#166534;background:#dcfce7}.user-card-meta{grid-template-columns:1fr 1fr;gap:10px;margin:14px 0;font-size:13px;display:grid}.user-card-meta 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var(--border);border-radius:var(--radius-sm);grid-template-columns:1fr 1fr;gap:8px;padding:10px;font-size:13px;display:grid}@media (width>=640px){:root{--page-pad:24px}.toast-region{width:min(380px,100vw - 40px);left:auto;right:20px}.action-btn{flex:0 auto}.schedule-actions{gap:6px}.modal-backdrop{align-items:center;padding:20px}.modal-panel{border-radius:var(--radius);width:min(520px,100%)}.user-card-grid,.filter-grid{grid-template-columns:repeat(2,1fr)}.two-col{grid-template-columns:1fr 1fr}}@media (width>=1024px){.sidebar{display:flex}.mobile-header,.bottom-nav{display:none}.app-main{padding-bottom:0}.workspace-grid--with-sidebar{grid-template-columns:minmax(300px,360px) minmax(0,1fr)}.workspace-grid:not(.workspace-grid--with-sidebar){grid-template-columns:1fr}.user-card-grid{display:none}.desktop-only{display:block}.audit-card-list{display:none}.filter-grid{grid-template-columns:repeat(3,1fr)}.collapsible-trigger{pointer-events:none}.collapsible-trigger 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var(--tl-grid-line);font-size:10px;font-weight:700;position:relative}.tl-time-label:first-child{border-top-color:#0000}.tl-time-label span{background:var(--surface);padding:0 3px;position:absolute;top:-8px;right:8px}.tl-columns{width:100%;min-width:0;display:grid}.tl-day-column{border-right:1px solid var(--tl-grid-line);background-color:var(--surface);background-image:linear-gradient(to bottom, var(--tl-grid-line) 1px, transparent 1px);background-size:100% 56px;min-width:0;position:relative}.tl-day-column:last-child{border-right:none}.tl-day-column.is-today{background-color:var(--tl-today-bg);background-image:linear-gradient(#1d4ed81f 1px,#0000 1px)}.tl-hour-cell{border-top:1px solid #0000}.tl-events-layer{pointer-events:none;box-sizing:border-box;position:absolute;inset:0 6px 12px}.tl-day-empty{text-align:center;color:var(--text-muted);pointer-events:none;margin:0;font-size:12px;position:absolute;inset:40% 8px 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.gcal-month-daynum{background:var(--primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;font-weight:800;display:inline-flex}.gcal-month-daynum{color:var(--text-muted);font-size:12px;font-weight:700}.gcal-month-events{flex-direction:column;gap:2px;display:flex;overflow:hidden}.gcal-month-event{text-align:left;cursor:pointer;color:#1e3a5f;background:#e8f0fe;border:none;border-radius:4px;align-items:baseline;gap:4px;width:100%;padding:2px 4px;font-size:11px;display:flex}.gcal-month-event-time{flex-shrink:0;font-weight:700}.gcal-month-event-title{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.gcal-month-event.status-pending{color:#9a3412;background:#fff7ed}.gcal-month-event.status-pending_unassigned{color:#3730a3;background:#eef2ff}.gcal-month-event.status-approved{color:#047857;background:#ecfdf5}.gcal-month-more{color:var(--text-muted);padding-left:4px;font-size:11px}.audit-page .audit-filters{margin-bottom:16px}.audit-summary-bar{color:var(--text-muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:12px;font-size:14px;display:flex}.audit-mode-hint{background:var(--surface-muted);border-radius:999px;padding:4px 10px;font-size:12px}.audit-panel{padding:0;overflow:hidden}.audit-timeline{margin:0;padding:0;list-style:none}.audit-timeline-item{border-bottom:1px solid var(--border)}.audit-timeline-item:last-child{border-bottom:none}.audit-timeline-head{text-align:left;cursor:pointer;background:0 0;border:none;grid-template-columns:auto 1fr auto;align-items:start;gap:12px;width:100%;padding:14px 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var(--border);padding:10px 12px}.agenda-single-day-title{margin:0;padding:14px 16px 8px;font-size:15px;font-weight:700}.agenda-empty{padding:24px 16px}.agenda-list{gap:10px;margin:0;padding:10px 12px 14px;list-style:none;display:grid}.agenda-card{text-align:left;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);align-items:stretch;gap:12px;width:100%;min-height:auto;padding:12px 14px;display:flex;box-shadow:0 1px 2px #0f172a0d}.agenda-card:active{background:var(--surface-muted);transform:scale(.99)}.agenda-card-time{color:var(--primary);border-right:1px solid var(--border);flex-direction:column;flex:0 0 52px;justify-content:center;align-items:center;padding-right:10px;font-size:13px;font-weight:800;display:flex}.agenda-time-sep{opacity:.6;font-size:10px}.agenda-card-body{flex:1;gap:4px;min-width:0;display:grid}.agenda-card-head{justify-content:space-between;align-items:flex-start;gap:8px;display:flex}.agenda-card-head strong{font-size:15px;line-height:1.3}.agenda-card-head .status{flex-shrink:0;padding:2px 6px;font-size:9px}.agenda-card-meta{color:var(--text-muted);margin:0;font-size:12px}.agenda-card-full{color:var(--text-muted);font-size:11px}.form-intro-hint{background:var(--primary-soft);border-radius:var(--radius-sm);border:1px solid #bfdbfe;padding:10px 12px}@media (width>=768px) and (width<=1023px){.workspace-grid{grid-template-columns:1fr}.side-column{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));display:grid}.tl-scroll{max-height:min(65vh,720px)}}