:root{color-scheme:light;--brand-blue: #3b82f6;--brand-teal: #14b8a6;--brand-purple: #a855f7;--brand-green: #84cc16;--brand-ink: #1f2937;--canvas: #f7f8fa;--surface: #ffffff;--surface-muted: #eef0f4;--text-body: #1f2937;--text-heading: #1f2937;--text-muted: #566176;--border-subtle: #d7dce5;--border-control: #64748b;--link: #1d4ed8;--link-hover: #1e40af;--link-pressed: #1e3a8a;--selected-text: #1e3a8a;--selected-bg: #dbeafe;--selected-border: #1d4ed8;--focus: #1d4ed8;--focus-gap: #ffffff;--ai-text: #1d4ed8;--ai-bg: #eff6ff;--teal-text: #115e59;--teal-bg: #f0fdfa;--purple-text: #6b21a8;--purple-bg: #faf5ff;--green-text: #3f6212;--green-bg: #f7fee7;--success-text: #216444;--success-bg: #edf7f0;--caution-text: #805400;--caution-bg: #fff4d6;--failure-text: #a52a3a;--failure-bg: #fff0f2;--neutral-text: #566176;--neutral-bg: #eef0f4;--conversation-text: #ffffff;--conversation-bg: #1d4ed8;--conversation-hover: #1e40af;--conversation-pressed: #1e3a8a;--decision-text: #ffffff;--decision-bg: #1f2937;--decision-hover: #374151;--decision-pressed: #111827;--action-text: #1f2937;--action-bg: #ffffff;--action-hover: #eef0f4;--action-pressed: #d7dce5;--conversation-disabled-text: #566176;--conversation-disabled-bg: #eef0f4;--conversation-disabled-border: #64748b;--decision-disabled-text: #566176;--decision-disabled-bg: #eef0f4;--decision-disabled-border: #64748b;--action-disabled-text: #566176;--action-disabled-bg: #eef0f4;--action-disabled-border: #64748b;--destructive-text: #ffffff;--destructive-bg: #a52a3a;--destructive-hover: #8c2230;--destructive-pressed: #741b28;--destructive-disabled-text: #566176;--destructive-disabled-bg: #eef0f4;--destructive-disabled-border: #64748b;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-6: 24px;--space-8: 32px;--space-12: 48px;--radius-small: 4px;--radius-control: 6px;--radius-card: 8px;--radius-modal: 12px;--font-ui: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;--font-size-caption: 12px;--font-size-small: 14px;--font-size-body: 15px;--font-size-reading: 16px;--font-size-heading-3: 17px;--font-size-heading-2: 18px;--font-size-heading-1: 25px;--line-height-tight: 1.25;--line-height-ui: 1.5;--line-height-reading: 1.75;--font-weight-regular: 400;--font-weight-strong: 700;--modal-shadow: 0 8px 24px rgba(31, 41, 55, .12);--overlay-backdrop: rgba(31, 41, 55, .24);--control-min-height: 44px;--avatar-size: 32px;--pane-left-default: 256px;--pane-right-default: 320px}