.sif-section{padding:var(--spacing-24) 0 var(--spacing-32);color:var(--colors-fg-default);background:var(--colors-bg-default)}.sif-section :where(p,h2,h3,h4,dl,dd){margin:0}.sif-container{width:100%;max-width:1280px;padding-inline:var(--spacing-8);margin-inline:auto}.sif-layout{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.45fr);align-items:center;grid-gap:var(--spacing-16);gap:var(--spacing-16)}.sif-intro{padding-bottom:var(--spacing-8)}.sif-eyebrow{color:var(--colors-amber-11);font-size:var(--font-sizes-sm);font-weight:var(--font-weights-bold)}.sif-intro h2{margin-top:var(--spacing-5);font-family:var(--font-logo),sans-serif;font-size:var(--font-sizes-5xl);font-weight:var(--font-weights-extrabold);letter-spacing:var(--letter-spacings-tight);line-height:1.1}.sif-intro h2 :where(span){display:block;color:var(--colors-amber-11)}.sif-description{max-width:31ch;margin-top:var(--spacing-6);color:var(--colors-fg-muted);font-size:var(--font-sizes-lg);line-height:1.7;text-wrap:pretty}.sif-scene{--sif-structure:1;--sif-fill:1;--sif-notice:1;--sif-class-source:1;--sif-staff-source:1;--sif-suggestion:1;--sif-settle:1;position:relative;min-width:0;padding:var(--spacing-3) var(--spacing-3) var(--spacing-5);isolation:isolate}.sif-sheet{position:absolute;pointer-events:none;border:2px solid var(--colors-border-subtle);border-radius:var(--radii-xl);background:var(--colors-bg-default)}.sif-sheet-back{inset:var(--spacing-8) var(--spacing-1) 0 var(--spacing-5);transform:rotate(1.2deg);background:var(--colors-bg-subtle)}.sif-sheet-middle{inset:var(--spacing-5) var(--spacing-5) var(--spacing-2) var(--spacing-1);transform:rotate(-.7deg)}.sif-register{position:relative;isolation:isolate;min-width:0;border-width:2px;background:var(--colors-bg-default)}.sif-bookmark{position:absolute;top:-2px;right:var(--spacing-7);width:44px;height:74px;pointer-events:none}.sif-bookmark svg{display:block;width:100%;height:100%}.sif-bookmark-shape{fill:var(--colors-amber-3);stroke:var(--colors-amber-7);stroke-width:2px;stroke-dasharray:1;stroke-dashoffset:calc(1 - var(--sif-structure));fill-opacity:var(--sif-fill)}.sif-bookmark-rule{stroke:var(--colors-amber-11);stroke-width:2px;stroke-dasharray:1;stroke-dashoffset:calc(1 - var(--sif-fill))}.sif-register-header{display:flex;align-items:center;gap:var(--spacing-4);padding:var(--spacing-7) var(--spacing-24) var(--spacing-6) var(--spacing-6);border-bottom:2px solid var(--colors-border-subtle)}.sif-register-header img{width:56px;height:56px;flex:none;object-fit:contain}.sif-register-header h3{margin-top:var(--spacing-1);font-family:var(--font-logo),sans-serif;font-size:var(--font-sizes-2xl);font-weight:var(--font-weights-bold);line-height:1.25;letter-spacing:var(--letter-spacings-tight)}.sif-label{color:var(--colors-fg-muted);font-size:var(--font-sizes-sm);font-weight:var(--font-weights-medium);line-height:1.5}.sif-class-item+.sif-class-item{border-top:2px solid var(--colors-border-subtle)}.sif-class-row{align-items:center;min-height:72px;padding-inline:var(--spacing-6);padding-block:var(--spacing-3)}.sif-class-mark{width:var(--spacing-10);height:var(--spacing-10);border:2px solid var(--colors-border-subtle);border-radius:var(--radii-lg);background:var(--colors-bg-subtle);font-weight:var(--font-weights-bold);font-size:var(--font-sizes-sm)}.sif-class-name{font-weight:var(--font-weights-semibold)}.sif-class-teacher{margin-top:var(--spacing-1);color:var(--colors-fg-muted)}.sif-record-state{display:inline-flex;align-items:center;justify-content:flex-end;gap:var(--spacing-2);margin-left:var(--spacing-4);font-size:var(--font-sizes-sm);font-weight:var(--font-weights-medium);color:var(--colors-fg-muted);flex:none}.sif-class-item[data-attention]{position:relative;background:var(--colors-amber-a2)}.sif-class-item[data-attention]:before{content:"";position:absolute;inset-block:var(--spacing-4);left:0;width:4px;border-radius:0 var(--radii-sm) var(--radii-sm) 0;background:var(--colors-amber-9);transform:scaleY(var(--sif-notice));transform-origin:top}.sif-class-item[data-attention] .sif-class-mark{border-color:var(--colors-amber-7);background:var(--colors-amber-3);color:var(--colors-amber-11)}.sif-class-item[data-attention] .sif-record-state{color:var(--colors-amber-11)}.sif-attention-dot{width:6px;height:6px;flex:none;border-radius:var(--radii-full);background:currentColor}.sif-open-link{padding-bottom:3px;background-image:linear-gradient(var(--colors-amber-8),var(--colors-amber-8));background-size:calc(100% * var(--sif-notice)) 2px;background-position:0 100%;background-repeat:no-repeat;box-decoration-break:clone;-webkit-box-decoration-break:clone}.sif-insight{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:var(--spacing-4);padding:var(--spacing-5) var(--spacing-6);border-top:2px solid var(--colors-border-subtle)}.sif-agent{flex:1 1 260px;min-width:0}.sif-agent-heading{display:flex;align-items:center;gap:var(--spacing-2)}.sif-agent-heading .sif-label{color:var(--colors-fg-default);font-weight:var(--font-weights-semibold)}.sif-agent-mark{flex:none;color:var(--colors-amber-11)}.sif-agent-star{stroke-dasharray:1;stroke-dashoffset:calc(1 - var(--sif-structure));fill:var(--colors-amber-3);fill-opacity:var(--sif-suggestion)}.sif-agent-spark{stroke-dasharray:1;stroke-dashoffset:calc(1 - var(--sif-staff-source))}.sif-agent-sources{display:grid;grid-template-columns:minmax(0,-webkit-max-content) 24px minmax(0,-webkit-max-content);grid-template-columns:minmax(0,max-content) 24px minmax(0,max-content);align-items:center;grid-gap:var(--spacing-2);gap:var(--spacing-2);margin-top:var(--spacing-3);font-size:var(--font-sizes-xs);color:var(--colors-fg-muted);line-height:1.6}.sif-scene [data-source=class]{--sif-source:var(--sif-class-source)}.sif-scene [data-source=staff]{--sif-source:var(--sif-staff-source)}.sif-agent-source{padding-bottom:2px;background-image:linear-gradient(var(--colors-amber-8),var(--colors-amber-8));background-size:calc(100% * var(--sif-source)) 2px;background-position:0 100%;background-repeat:no-repeat}.sif-source-plus{display:inline-flex;align-items:center;color:var(--colors-amber-11)}.sif-source-link-left{stroke-dasharray:1;stroke-dashoffset:calc(1 - var(--sif-class-source))}.sif-source-link-right{stroke-dasharray:1;stroke-dashoffset:calc(1 - var(--sif-staff-source))}.sif-agent-suggestion{margin-top:var(--spacing-3);font-size:var(--font-sizes-md);font-weight:var(--font-weights-semibold);line-height:1.6}.sif-agent-word{--sif-word-progress:clamp(0,calc(var(--sif-suggestion) * var(--sif-word-count) - var(--sif-word)),1);display:inline-block;position:relative;white-space:pre}.sif-word-ink{display:inline-block;opacity:calc(.5 + var(--sif-word-progress) * .5);-webkit-clip-path:inset(-2px calc(100% * (1 - var(--sif-word-progress))) -2px 0);clip-path:inset(-2px calc(100% * (1 - var(--sif-word-progress))) -2px 0)}.sif-agent-word:after{content:"";position:absolute;top:.28em;left:calc(100% * var(--sif-word-progress));width:2px;height:.9em;border-radius:var(--radii-full);background:var(--colors-amber-11);opacity:calc(4 * var(--sif-word-progress) * (1 - var(--sif-word-progress)));pointer-events:none}.sif-agent-status{display:grid;margin-top:var(--spacing-1);color:var(--colors-fg-muted);font-size:var(--font-sizes-xs);line-height:1.6}.sif-agent-status>span{grid-area:1/1;opacity:0;transition:opacity .16s ease}.sif-agent-status [data-stage=ready]{opacity:var(--sif-settle)}.sif-scene[data-step]:not([data-step=ready]) [data-stage=ready]{opacity:0}.sif-scene[data-step=context] [data-stage=context],.sif-scene[data-step=notice] [data-stage=notice],.sif-scene[data-step=suggest] [data-stage=suggest]{opacity:1}.sif-button{min-height:44px;white-space:normal;gap:var(--spacing-2);flex:none;text-align:center}.sif-button>svg{flex:none}.sif-disclosure,.sif-preview-button{min-width:min(100%,var(--spacing-44))}.sif-details{padding:var(--spacing-6);border-top:2px solid var(--colors-border-subtle)}.sif-context-heading{font-family:var(--font-logo),sans-serif;font-size:var(--font-sizes-lg);font-weight:var(--font-weights-semibold);line-height:1.4}.sif-sources{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);margin-top:var(--spacing-5)}.sif-source{min-width:0}.sif-source+.sif-source{margin-left:var(--spacing-5);padding-left:var(--spacing-5);border-left:2px solid var(--colors-border-subtle)}.sif-source dd{display:flex;flex-direction:column;align-items:flex-start;gap:var(--spacing-1);margin-top:var(--spacing-2);line-height:1.4}.sif-source-name{text-decoration:underline;-webkit-text-decoration-color:var(--colors-amber-8);text-decoration-color:var(--colors-amber-8);text-decoration-thickness:2px;text-underline-offset:5px;opacity:calc(.65 + var(--sif-source) * .35);transform:translateY(calc(3px * (1 - var(--sif-source))));font-size:var(--font-sizes-md);font-weight:var(--font-weights-semibold)}.sif-source-meta{font-size:var(--font-sizes-sm);color:var(--colors-fg-muted)}.sif-field{margin-top:var(--spacing-6);padding:var(--spacing-4) var(--spacing-5);border:2px solid var(--colors-border-subtle);border-radius:var(--radii-xl);background:var(--colors-bg-subtle);transition:background-color .24s ease,border-color .24s ease}.sif-field-heading{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-2);min-height:var(--spacing-6)}.sif-field-value{display:grid;margin-top:var(--spacing-2);font-family:var(--font-logo),sans-serif;font-size:var(--font-sizes-xl);font-weight:var(--font-weights-semibold);line-height:1.4}.sif-field-current>span,.sif-field-value>span{grid-area:1/1}.sif-field [aria-hidden=true]{visibility:hidden}.sif-field:where([data-transition][data-preview]) .sif-field-value [data-value=proposed]{animation:sif-preview-ink .28s cubic-bezier(.22,1,.36,1) both}.sif-field:where([data-transition]:not([data-preview])) .sif-field-value [data-value=current]{animation:sif-current-ink .24s cubic-bezier(.22,1,.36,1) both}.sif-scene[data-document-visible=false] .sif-field-value>span{animation-play-state:paused}@keyframes sif-preview-ink{0%{opacity:0;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}@keyframes sif-current-ink{0%{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:translateY(0)}}.sif-field-current{display:grid;margin-top:var(--spacing-1);font-size:var(--font-sizes-sm);color:var(--colors-fg-muted);line-height:1.5}.sif-field[data-preview]{border-color:var(--colors-amber-7);background:var(--colors-amber-a2)}.sif-preview-label{color:var(--colors-amber-11);font-size:var(--font-sizes-sm);font-weight:var(--font-weights-bold)}.sif-proposal{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:var(--spacing-4);margin-top:var(--spacing-5)}.sif-proposal-name{margin-top:var(--spacing-1);font-size:var(--font-sizes-md);font-weight:var(--font-weights-semibold);line-height:1.5}.sif-register-footer{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-4) var(--spacing-6);border-top:2px solid var(--colors-border-subtle);color:var(--colors-fg-muted);font-size:var(--font-sizes-xs);line-height:1.6}.sif-caption-mark{width:6px;height:6px;border:2px solid;border-radius:var(--radii-full);flex:none}.sif-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;-webkit-clip-path:inset(50%);clip-path:inset(50%);white-space:nowrap;border:0}.sif-section [hidden]{display:none}@media (max-width:1100px){.sif-layout{gap:var(--spacing-8);grid-template-columns:minmax(0,.8fr) minmax(0,1.45fr)}.sif-intro h2{font-size:var(--font-sizes-4xl)}}@media (max-width:900px){.sif-section{padding:var(--spacing-16) 0 var(--spacing-20)}.sif-layout{grid-template-columns:minmax(0,1fr);gap:var(--spacing-8);max-width:640px;margin-inline:auto}.sif-intro{padding-bottom:0}.sif-intro h2{font-size:var(--font-sizes-5xl)}.sif-description{max-width:40ch;font-size:var(--font-sizes-md)}}@media (max-width:767px){.sif-container{padding-inline:var(--spacing-4)}}@media (max-width:480px){.sif-scene{padding-inline:var(--spacing-1)}.sif-sheet-middle{inset-inline:0 var(--spacing-3)}.sif-sheet-back{inset-inline:var(--spacing-3) 0;transform:rotate(.6deg)}.sif-intro h2{font-size:var(--font-sizes-4xl)}.sif-register-header{padding:var(--spacing-5) var(--spacing-16) var(--spacing-5) var(--spacing-4);gap:var(--spacing-3)}.sif-register-header img{width:40px;height:40px}.sif-register-header h3{font-size:var(--font-sizes-xl)}.sif-bookmark{right:var(--spacing-4);width:32px;height:56px}.sif-class-row{padding:var(--spacing-4)}.sif-class-mark{margin-right:var(--spacing-3)}.sif-record-state{display:none}.sif-details,.sif-insight{padding:var(--spacing-5) var(--spacing-4)}.sif-source+.sif-source{margin-left:var(--spacing-3);padding-left:var(--spacing-3)}.sif-field{padding-inline:var(--spacing-4)}.sif-disclosure,.sif-preview-button{width:100%}.sif-register-footer{padding-inline:var(--spacing-4)}}@media (prefers-reduced-motion:reduce){.sif-agent-status>span,.sif-button,.sif-field{transition:none}.sif-source-name,.sif-word-ink{opacity:1;transform:none;-webkit-clip-path:none;clip-path:none}.sif-agent-word:after{display:none}.sif-field[data-transition] .sif-field-value>span{animation:none}}@media (forced-colors:active){.sif-bookmark-rule,.sif-bookmark-shape{stroke:CanvasText}.sif-class-item[data-attention]:before{background:Highlight}}