/* NexusDocs AI assistant widget. * * Self-contained styles for the launcher pill and the chat modal. The * visual language intentionally mirrors Zensical's built-in search * modal: same surface, border, radius, shadow, and tokens, so the two * read as a single design system. Vanilla JS, no framework. */ :root { --nx-z: 1000; --nx-z-modal: 1001; --nx-radius: 0.4rem; --nx-radius-sm: 0.3rem; --nx-bg: #ffffff; --nx-fg: #1f2328; --nx-fg-light: #5a6068; --nx-fg-lighter: #8b9098; --nx-fg-lightest: #e2e4e7; --nx-accent: #3b6cf6; --nx-accent-soft: rgba(59, 108, 246, 0.08); --nx-code-bg: #f3f4f6; --nx-shadow-z1: 0 0.05rem 0.2rem rgba(0, 0, 0, 0.06), 0 0.25rem 0.5rem rgba(0, 0, 0, 0.06); --nx-shadow-z2: 0 0.05rem 0.2rem rgba(0, 0, 0, 0.07), 0 0.5rem 1rem rgba(0, 0, 0, 0.08); --nx-shadow-z3: 0 0.05rem 0.2rem rgba(0, 0, 0, 0.08), 0 0.8rem 1.5rem rgba(0, 0, 0, 0.1), 0 2rem 3rem rgba(0, 0, 0, 0.08); --nx-backdrop: rgba(0, 0, 0, 0.32); } /* Dark scheme overrides. Zensical attaches data-md-color-scheme to * the , not :root, so we re-define the palette here. Values * mirror the --md-* slate scheme. */ [data-md-color-scheme="slate"] { --nx-bg: hsla(225, 15%, 5%, 1); --nx-fg: hsla(225, 15%, 90%, 0.82); --nx-fg-light: hsla(225, 15%, 75%, 0.56); --nx-fg-lighter: hsla(225, 15%, 75%, 0.4); --nx-fg-lightest: hsla(225, 15%, 90%, 0.1); --nx-accent: #38bdf8; --nx-accent-soft: rgba(56, 189, 248, 0.12); --nx-code-bg: hsla(225, 15%, 90%, 0.05); --nx-shadow-z1: 0 0.05rem 0.2rem rgba(0, 0, 0, 0.3), 0 0.25rem 0.5rem rgba(0, 0, 0, 0.3); --nx-shadow-z2: 0 0.05rem 0.2rem rgba(0, 0, 0, 0.35), 0 0.5rem 1rem rgba(0, 0, 0, 0.4); --nx-shadow-z3: 0 0.05rem 0.2rem rgba(0, 0, 0, 0.4), 0 0.8rem 1.5rem rgba(0, 0, 0, 0.45), 0 2rem 3rem rgba(0, 0, 0, 0.45); --nx-backdrop: rgba(0, 0, 0, 0.6); } /* Launcher pill ------------------------------------------------------ */ .nexus-assistant-launcher { position: fixed; right: max(1.25rem, env(safe-area-inset-right)); bottom: max(1.85rem, env(safe-area-inset-bottom)); z-index: var(--nx-z); display: inline-flex; align-items: center; gap: 0.5rem; height: 2.4rem; padding: 0 0.95rem; border-radius: 999px; background: var(--nx-bg); color: var(--nx-fg); border: 1px solid var(--nx-fg-lightest); cursor: pointer; box-shadow: var(--nx-shadow-z1); font: inherit; font-size: 0.82rem; font-weight: 500; line-height: 1; touch-action: manipulation; -webkit-tap-highlight-color: transparent; transition: transform 160ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 160ms ease, border-color 160ms ease, color 160ms ease; } .nexus-assistant-launcher:hover { transform: translateY(-1px); border-color: var(--nx-fg-lighter); box-shadow: var(--nx-shadow-z2); } .nexus-assistant-launcher:active { transform: translateY(0); } .nexus-assistant-launcher:focus-visible { outline: none; box-shadow: var(--nx-shadow-z1), 0 0 0 2px var(--nx-accent); } .nexus-assistant-launcher-icon { display: inline-flex; align-items: center; justify-content: center; color: var(--nx-accent); width: 1.05rem; height: 1.05rem; } .nexus-assistant-launcher-label { white-space: nowrap; } /* Modal overlay ------------------------------------------------------ */ .nexus-assistant-overlay { position: fixed; inset: 0; z-index: var(--nx-z-modal); display: flex; align-items: center; justify-content: center; padding: max(1.25rem, env(safe-area-inset-top)) max(1.25rem, env(safe-area-inset-right)) max(1.25rem, env(safe-area-inset-bottom)) max(1.25rem, env(safe-area-inset-left)); background: var(--nx-backdrop); opacity: 0; pointer-events: none; transition: opacity 180ms ease; } .nexus-assistant-overlay.nexus-assistant-open { opacity: 1; pointer-events: auto; } /* Modal panel -------------------------------------------------------- */ .nexus-assistant-modal { position: relative; width: min(780px, 100%); max-height: min(80vh, calc(100dvh - 2.5rem)); background: var(--nx-bg); color: var(--nx-fg); border: 1px solid var(--nx-fg-lightest); border-radius: var(--nx-radius); box-shadow: var(--nx-shadow-z3); color-scheme: light; display: flex; flex-direction: column; overflow: hidden; transform: translateY(8px) scale(0.98); opacity: 0; transition: transform 200ms cubic-bezier(0.16, 1, 0.3, 1), opacity 160ms ease; font-family: var(--md-text-font, system-ui, sans-serif); font-size: 0.9rem; line-height: 1.55; } [data-md-color-scheme="slate"] .nexus-assistant-modal { color-scheme: dark; } .nexus-assistant-overlay.nexus-assistant-open .nexus-assistant-modal { transform: translateY(0) scale(1); opacity: 1; } /* Header ------------------------------------------------------------- */ .nexus-assistant-header { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; padding: 0.75rem 0.95rem; border-bottom: 1px solid var(--nx-fg-lightest); background: var(--nx-bg); } .nexus-assistant-header-text { display: flex; align-items: center; gap: 0.65rem; min-width: 0; } .nexus-assistant-header-icon { display: inline-flex; align-items: center; justify-content: center; width: 1.75rem; height: 1.75rem; border-radius: var(--nx-radius-sm); background: var(--nx-accent-soft); color: var(--nx-accent); flex: 0 0 auto; } .nexus-assistant-header-titles { display: flex; flex-direction: column; line-height: 1.2; min-width: 0; } .nexus-assistant-header-titles strong { font-weight: 600; font-size: 0.9rem; color: var(--nx-fg); text-wrap: balance; letter-spacing: -0.005em; } .nexus-assistant-header-titles small { color: var(--nx-fg-light); font-size: 0.74rem; margin-top: 2px; max-width: 24rem; text-wrap: pretty; } .nexus-assistant-close { background: transparent; border: 0; color: var(--nx-fg-light); cursor: pointer; padding: 0.35rem; border-radius: var(--nx-radius-sm); display: inline-flex; touch-action: manipulation; -webkit-tap-highlight-color: transparent; transition: background-color 140ms ease, color 140ms ease; } .nexus-assistant-close:hover { background: var(--nx-code-bg); color: var(--nx-fg); } .nexus-assistant-close:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--nx-accent); } /* Messages ----------------------------------------------------------- */ .nexus-assistant-messages { flex: 1 1 auto; overflow-y: auto; overscroll-behavior: contain; padding: 1rem 1.1rem 0.4rem; display: flex; flex-direction: column; gap: 0.9rem; scroll-behavior: smooth; scrollbar-width: thin; scrollbar-color: var(--nx-fg-lightest) transparent; } .nexus-assistant-messages::-webkit-scrollbar { width: 8px; } .nexus-assistant-messages::-webkit-scrollbar-thumb { background: var(--nx-fg-lightest); border-radius: 8px; } .nexus-assistant-messages::-webkit-scrollbar-thumb:hover { background: var(--nx-fg-lighter); } .nexus-assistant-messages::-webkit-scrollbar-track { background: transparent; } /* Empty state -------------------------------------------------------- */ .nexus-assistant-empty { margin: auto 0; padding: 0.5rem 0.25rem 1rem; color: var(--nx-fg-light); display: flex; flex-direction: column; align-items: center; text-align: center; gap: 0.75rem; } .nexus-assistant-empty-icon { display: inline-flex; align-items: center; justify-content: center; width: 2.5rem; height: 2.5rem; border-radius: 50%; background: var(--nx-accent-soft); color: var(--nx-accent); } .nexus-assistant-empty p { margin: 0; font-size: 0.92rem; max-width: 28rem; color: var(--nx-fg); text-wrap: balance; } .nexus-assistant-empty-sub { font-size: 0.82rem !important; color: var(--nx-fg-light) !important; margin-top: -0.4rem !important; text-wrap: pretty; } .nexus-assistant-suggestions { display: flex; flex-direction: column; align-items: stretch; gap: 0.4rem; margin-top: 0.6rem; width: 100%; max-width: 32rem; } .nexus-assistant-suggestions-label { font-size: 0.72rem; letter-spacing: 0.02em; color: var(--nx-fg-light); text-align: left; padding: 0 0.25rem 0.1rem; } .nexus-assistant-suggestion { background: var(--nx-code-bg); color: var(--nx-fg); border: 1px solid var(--nx-fg-lightest); border-radius: var(--nx-radius-sm); padding: 0.55rem 0.85rem; font: inherit; font-size: 0.86rem; text-align: left; cursor: pointer; touch-action: manipulation; -webkit-tap-highlight-color: transparent; display: flex; align-items: center; gap: 0.55rem; transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease; } .nexus-assistant-suggestion:hover { border-color: var(--nx-fg-lighter); color: var(--nx-accent); } .nexus-assistant-suggestion:focus-visible { outline: none; border-color: var(--nx-accent); box-shadow: 0 0 0 2px var(--nx-accent-soft); } .nexus-assistant-suggestion-suggestion-icon { color: var(--nx-fg-lighter); flex: 0 0 auto; } /* Message bubbles ---------------------------------------------------- */ .nexus-assistant-msg { display: flex; animation: nx-msg-in 220ms cubic-bezier(0.16, 1, 0.3, 1); } @keyframes nx-msg-in { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } } .nexus-assistant-msg-user { justify-content: flex-end; } .nexus-assistant-msg-assistant { justify-content: flex-start; } .nexus-assistant-bubble { max-width: 92%; white-space: pre-wrap; word-wrap: break-word; overflow-wrap: anywhere; min-width: 0; } .nexus-assistant-msg-user .nexus-assistant-bubble { padding: 0.5rem 0.8rem; border-radius: 0.6rem 0.6rem 0.15rem 0.6rem; background: var(--nx-accent-soft); color: var(--nx-fg); border: 1px solid var(--nx-fg-lightest); } .nexus-assistant-msg-assistant .nexus-assistant-bubble { padding: 0.1rem 0; background: transparent; border: 0; color: var(--nx-fg); max-width: 100%; line-height: 1.6; } /* Rendered markdown --------------------------------------------------- */ .nexus-assistant-msg-assistant .nexus-assistant-bubble > :first-child { margin-top: 0; } .nexus-assistant-msg-assistant .nexus-assistant-bubble > :last-child { margin-bottom: 0; } .nexus-assistant-msg-assistant .nexus-assistant-bubble p { margin: 0.55rem 0; text-wrap: pretty; } .nexus-assistant-msg-assistant .nexus-assistant-bubble h3, .nexus-assistant-msg-assistant .nexus-assistant-bubble h4, .nexus-assistant-msg-assistant .nexus-assistant-bubble h5, .nexus-assistant-msg-assistant .nexus-assistant-bubble h6 { font-weight: 600; letter-spacing: -0.005em; margin: 1rem 0 0.4rem; text-wrap: balance; } .nexus-assistant-msg-assistant .nexus-assistant-bubble h3 { font-size: 1rem; } .nexus-assistant-msg-assistant .nexus-assistant-bubble h4 { font-size: 0.95rem; } .nexus-assistant-msg-assistant .nexus-assistant-bubble h5, .nexus-assistant-msg-assistant .nexus-assistant-bubble h6 { font-size: 0.9rem; } .nexus-assistant-msg-assistant .nexus-assistant-bubble strong { font-weight: 600; color: var(--nx-fg); } .nexus-assistant-msg-assistant .nexus-assistant-bubble em { font-style: italic; } .nexus-assistant-msg-assistant .nexus-assistant-bubble code { font-family: var(--md-code-font, ui-monospace, SFMono-Regular, Menlo, monospace); font-size: 0.86em; background: var(--nx-code-bg); border: 1px solid var(--nx-fg-lightest); border-radius: 0.25rem; padding: 0.05em 0.35em; color: var(--nx-accent); word-break: break-word; } .nexus-assistant-msg-assistant .nexus-assistant-bubble pre { margin: 0.7rem 0; padding: 0.7rem 0.85rem; background: var(--nx-code-bg); border: 1px solid var(--nx-fg-lightest); border-radius: var(--nx-radius-sm); overflow-x: auto; font-size: 0.84rem; line-height: 1.55; scrollbar-width: thin; scrollbar-color: var(--nx-fg-lighter) transparent; } .nexus-assistant-msg-assistant .nexus-assistant-bubble pre code { font-family: inherit; font-size: inherit; background: transparent; border: 0; border-radius: 0; padding: 0; color: var(--nx-fg); white-space: pre; word-break: normal; } .nexus-assistant-msg-assistant .nexus-assistant-bubble ul, .nexus-assistant-msg-assistant .nexus-assistant-bubble ol { margin: 0.55rem 0 0.55rem 0; padding-left: 1.5rem; } .nexus-assistant-msg-assistant .nexus-assistant-bubble li { margin-bottom: 0.25rem; } .nexus-assistant-msg-assistant .nexus-assistant-bubble li::marker { color: var(--nx-fg-lighter); } .nexus-assistant-msg-assistant .nexus-assistant-bubble a { color: var(--nx-accent); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color 140ms ease, color 140ms ease; } .nexus-assistant-msg-assistant .nexus-assistant-bubble a:hover { border-bottom-color: var(--nx-accent); } .nexus-assistant-msg-assistant .nexus-assistant-bubble a:focus-visible { outline: none; border-radius: 3px; box-shadow: 0 0 0 2px var(--nx-accent-soft); } .nexus-assistant-msg-assistant .nexus-assistant-bubble hr { border: 0; border-top: 1px solid var(--nx-fg-lightest); margin: 1rem 0; } /* Thinking indicator ------------------------------------------------- */ .nexus-assistant-thinking { display: inline-flex; align-items: center; gap: 4px; padding: 0.35rem 0; } .nexus-assistant-thinking-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--nx-fg-lighter); animation: nx-thinking 1.2s ease-in-out infinite; } .nexus-assistant-thinking-dot:nth-child(2) { animation-delay: 0.15s; } .nexus-assistant-thinking-dot:nth-child(3) { animation-delay: 0.3s; } @keyframes nx-thinking { 0%, 60%, 100% { transform: translateY(0); opacity: 0.4; } 30% { transform: translateY(-4px); opacity: 1; } } /* Error state -------------------------------------------------------- */ .nexus-assistant-msg-error .nexus-assistant-bubble { padding: 0.55rem 0.8rem !important; border-radius: var(--nx-radius-sm) !important; border: 1px solid rgba(220, 38, 38, 0.4) !important; background: rgba(254, 226, 226, 0.5) !important; color: #991b1b !important; } [data-md-color-scheme="slate"] .nexus-assistant-msg-error .nexus-assistant-bubble { background: rgba(127, 29, 29, 0.25) !important; color: rgb(252, 165, 165) !important; border-color: rgba(252, 165, 165, 0.28) !important; } .nexus-assistant-retry { margin-top: 6px; background: transparent; border: 1px solid var(--nx-fg-lightest); color: var(--nx-fg-light); padding: 3px 10px; border-radius: var(--nx-radius-sm); font: inherit; font-size: 0.8rem; cursor: pointer; touch-action: manipulation; transition: background-color 140ms ease, color 140ms ease, border-color 140ms ease; } .nexus-assistant-retry:hover { background: var(--nx-code-bg); color: var(--nx-fg); border-color: var(--nx-fg-lighter); } .nexus-assistant-retry:focus-visible { outline: none; border-color: var(--nx-accent); box-shadow: 0 0 0 2px var(--nx-accent-soft); } /* Citations ---------------------------------------------------------- */ /* Inline citation markers [N] / 【N】 rendered as clickable superscripts next to the claim they support. The widget appends them on the fly during streaming (as muted placeholders) and re-resolves them to real links once the SSE `done` event delivers the citation list. */ .nexus-assistant-bubble sup.nexus-assistant-cite { font-size: 0.72em; line-height: 0; margin-left: 1px; font-weight: 600; vertical-align: super; } .nexus-assistant-bubble sup.nexus-assistant-cite a { display: inline-block; min-width: 16px; padding: 0 4px; margin: 0 1px; border-radius: 999px; background: var(--nx-accent-soft); color: var(--nx-accent); text-decoration: none; text-align: center; transition: background-color 140ms ease, color 140ms ease; } .nexus-assistant-bubble sup.nexus-assistant-cite a:hover, .nexus-assistant-bubble sup.nexus-assistant-cite a:focus-visible { background: var(--nx-accent); color: var(--nx-bg, #fff); outline: none; } /* Streaming placeholder: shown before the SSE `done` event arrives and the citation list is known. */ .nexus-assistant-bubble sup.nexus-assistant-cite-pending { color: var(--nx-fg-lighter); background: transparent; padding: 0 2px; border-radius: 3px; } .nexus-assistant-citations { margin-top: 0.25rem; padding: 0.6rem 0.85rem; background: var(--nx-code-bg); border: 1px solid var(--nx-fg-lightest); border-radius: var(--nx-radius-sm); font-size: 0.82rem; color: var(--nx-fg-light); } .nexus-assistant-citations strong { color: var(--nx-fg-light); display: block; margin-bottom: 0.35rem; font-weight: 600; font-size: 0.72rem; letter-spacing: 0.04em; text-transform: uppercase; } .nexus-assistant-citations ol { margin: 0; padding-left: 1.4rem; } .nexus-assistant-citations li { margin-bottom: 4px; } .nexus-assistant-citations a { color: var(--nx-accent); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color 140ms ease, color 140ms ease; } .nexus-assistant-citations a:hover { border-bottom-color: var(--nx-accent); } .nexus-assistant-citations a:focus-visible { outline: none; border-radius: 3px; box-shadow: 0 0 0 2px var(--nx-accent-soft); } /* Composer ----------------------------------------------------------- */ .nexus-assistant-composer { padding: 0.6rem 0.95rem 0.75rem; border-top: 1px solid var(--nx-fg-lightest); background: var(--nx-bg); } .nexus-assistant-form { display: flex; align-items: flex-end; gap: 0.4rem; padding: 0.4rem 0.4rem 0.4rem 0.8rem; border: 1px solid var(--nx-fg-lightest); border-radius: var(--nx-radius); background: var(--nx-bg); transition: border-color 140ms ease, box-shadow 140ms ease; } .nexus-assistant-form:focus-within { border-color: var(--nx-accent); box-shadow: 0 0 0 2px var(--nx-accent-soft); } .nexus-assistant-input { flex: 1 1 auto; min-width: 0; resize: none; border: 0; padding: 0.3rem 0; background: transparent; color: var(--nx-fg); font: inherit; font-size: 0.9rem; line-height: 1.5; max-height: 8rem; min-height: 1.5rem; } .nexus-assistant-input:focus { outline: none; } .nexus-assistant-input::placeholder { color: var(--nx-fg-lighter); } .nexus-assistant-send { flex: 0 0 auto; background: transparent; color: var(--nx-fg-lighter); border: 0; border-radius: var(--nx-radius-sm); width: 2rem; height: 2rem; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; touch-action: manipulation; -webkit-tap-highlight-color: transparent; transition: color 140ms ease, background-color 140ms ease, transform 140ms ease; } .nexus-assistant-send:hover:not(:disabled) { color: var(--nx-accent); background: var(--nx-accent-soft); } .nexus-assistant-send:focus-visible { outline: none; color: var(--nx-accent); box-shadow: 0 0 0 2px var(--nx-accent-soft); } .nexus-assistant-send:disabled { opacity: 0.4; cursor: not-allowed; } /* Body scroll lock --------------------------------------------------- */ body.nexus-assistant-scroll-lock { overflow: hidden; } /* Reduced motion ----------------------------------------------------- */ @media (prefers-reduced-motion: reduce) { .nexus-assistant-overlay, .nexus-assistant-modal, .nexus-assistant-launcher, .nexus-assistant-msg, .nexus-assistant-thinking-dot, .nexus-assistant-suggestion, .nexus-assistant-send { transition-duration: 0.001ms; animation-duration: 0.001ms; animation-iteration-count: 1; } .nexus-assistant-modal, .nexus-assistant-launcher { transform: none; } } /* Mobile ------------------------------------------------------------- */ @media (max-width: 540px) { .nexus-assistant-overlay { padding: 0.5rem; align-items: flex-end; } .nexus-assistant-modal { width: 100%; max-height: calc(100dvh - 1rem); border-radius: 0.75rem; } .nexus-assistant-launcher { right: max(0.9rem, env(safe-area-inset-right)); bottom: max(1.6rem, env(safe-area-inset-bottom)); height: 2.3rem; padding: 0 0.85rem; font-size: 0.8rem; } } /* Conversation history ------------------------------------------------ * * Additions for the multi-turn panel: a header slot for the "start new * conversation" button, the button itself, and the stream-drop suffix * appended to a partial assistant message. */ .nexus-assistant-header-actions { display: inline-flex; align-items: center; gap: 0.2rem; flex: 0 0 auto; } .nexus-assistant-clear { display: inline-flex; align-items: center; gap: 0.35rem; background: transparent; border: 0; color: var(--nx-fg-light); cursor: pointer; padding: 0.35rem 0.55rem; border-radius: var(--nx-radius-sm); font: inherit; font-size: 0.78rem; font-weight: 500; line-height: 1; touch-action: manipulation; -webkit-tap-highlight-color: transparent; transition: background-color 140ms ease, color 140ms ease; } .nexus-assistant-clear:hover { background: var(--nx-code-bg); color: var(--nx-fg); } .nexus-assistant-clear:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--nx-accent); } .nexus-assistant-clear[hidden] { display: none; } .nexus-assistant-truncated { margin-top: 0.4rem; font-size: 0.78rem; color: var(--nx-fg-lighter); font-style: italic; }