:root {
/* Brand fonts (see index.html comment re: free substitutes) */
--font-serif: "Source Serif 4", Georgia, serif;
--font-sans: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
Helvetica, Arial, sans-serif;
/* Primary brand palette */
--palmetto-blue: #003366; /* Pantone 533-C */
--forum-blue: #004aad; /* Pantone 300-C */
--coast: #f4f4f2;
--khaki: #e4e0d4;
--sky: #c2dfed;
--water: #36a0e0; /* Pantone 279-C */
/* Secondary "state inspired" palette — sparing use only */
--state-gold: #ce8b3d;
--state-maroon: #7f263a;
--bg: #ffffff;
--bg-sunken: var(--coast);
--fg: var(--palmetto-blue);
--fg-body: #1a1a1a;
--muted: #5b6b7a;
--line: #dcd8cb;
--accent: var(--forum-blue);
--accent-fg: #ffffff;
--accent-secondary: var(--water);
--bubble-user: var(--sky);
--bubble-assistant: transparent;
--radius: 14px;
--header-h: 76px;
--composer-h: auto;
--shadow-tint: rgba(0,51,102,.06);
}
html[data-theme="dark"] {
--bg: #12161d;
--bg-sunken: #1b212a;
--fg: #d8e6f3; /* lighter blue stand-in for headings; palmetto-blue is too dark on a dark bg */
--fg-body: #e6e8eb;
--muted: #93a4b3;
--line: #2a323d;
--accent: #4a90d9;
--accent-fg: #ffffff;
--accent-secondary: #6cc0f0;
--bubble-user: #1f3a57;
--bubble-assistant: transparent;
--state-gold: #e0a458;
--state-maroon: #e08a96;
--shadow-tint: rgba(0,0,0,.4);
}
* { box-sizing: border-box; }
html, body {
height: 100%;
margin: 0;
}
body {
font-family: var(--font-sans);
color: var(--fg-body);
background: var(--bg);
display: flex;
flex-direction: column;
transition: background-color .2s ease, color .2s ease;
}
/* ---------- Header ---------- */
.app-header {
height: var(--header-h);
display: flex;
align-items: center;
justify-content: space-between;
padding: 0 18px;
border-bottom: 1px solid var(--line);
flex-shrink: 0;
background: var(--bg);
position: sticky;
top: 0;
z-index: 10;
transition: background-color .2s ease, border-color .2s ease;
}
.app-header .brand {
display: flex;
align-items: center;
gap: 10px;
}
.brand-mark {
width: 120px;
height: 120px;
display: block;
flex-shrink: 0;
}
.brand-text {
display: flex;
flex-direction: column;
line-height: 1.15;
}
.app-header h1 {
font-family: var(--font-serif);
font-size: 1.25rem;
font-weight: 600;
color: var(--fg);
margin: 0;
letter-spacing: -0.01em;
}
.theme-toggle {
width: 36px;
height: 36px;
border-radius: 50%;
border: 1px solid var(--line);
background: var(--bg-sunken);
color: var(--fg-body);
display: flex;
align-items: center;
justify-content: center;
font-size: 1rem;
line-height: 1;
flex-shrink: 0;
cursor: pointer;
transition: background-color .2s ease, border-color .2s ease;
}
.theme-toggle:hover {
border-color: var(--accent);
}
.app-header .tagline {
color: var(--muted);
font-size: .76rem;
font-style: italic;
}
.filter-select {
font: inherit;
font-size: .82rem;
font-weight: 500;
padding: 4px 8px;
border-radius: 999px;
border: 1px solid var(--line);
background: var(--bg-sunken);
color: var(--fg-body);
cursor: pointer;
}
.filter-select:focus {
outline: none;
border-color: var(--accent);
}
.user-menu {
display: flex;
align-items: center;
gap: 12px;
flex-shrink: 0;
}
.user-email {
font-size: .82rem;
color: var(--muted);
}
.logout-link {
font-size: .82rem;
font-weight: 500;
color: var(--accent);
text-decoration: none;
}
.logout-link:hover {
text-decoration: underline;
}
/* ---------- Auth pages (login / not authorized) ---------- */
.auth-page {
flex: 1 1 auto;
display: flex;
align-items: center;
justify-content: center;
padding: 24px;
}
.auth-card {
max-width: 360px;
text-align: center;
display: flex;
flex-direction: column;
align-items: center;
gap: 10px;
}
.auth-card h2 {
font-family: var(--font-serif);
color: var(--fg);
margin: 0;
}
.auth-card p {
color: var(--muted);
margin: 0;
}
.btn-google {
margin-top: 10px;
display: inline-flex;
align-items: center;
justify-content: center;
padding: 10px 20px;
border-radius: 999px;
background: var(--accent);
color: var(--accent-fg);
font-weight: 600;
font-size: .92rem;
text-decoration: none;
}
.btn-google:hover {
background: var(--accent-secondary);
}
/* ---------- Chat area ---------- */
.chat-scroll {
flex: 1 1 auto;
overflow-y: auto;
}
.chat-inner {
max-width: 760px;
margin: 0 auto;
padding: 24px 20px 40px;
display: flex;
flex-direction: column;
gap: 22px;
min-height: 100%;
}
.empty-state {
flex: 1;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
text-align: center;
color: var(--muted);
gap: 6px;
}
.empty-state .empty-title {
font-family: var(--font-serif);
font-size: 1.3rem;
font-weight: 600;
color: var(--fg);
}
.msg {
display: flex;
gap: 12px;
align-items: flex-start;
}
.msg .avatar {
flex-shrink: 0;
width: 28px;
height: 28px;
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
font-size: .72rem;
font-weight: 700;
color: #fff;
}
.msg.user .avatar { background: var(--palmetto-blue); }
.msg.assistant .avatar { background: var(--accent); }
.msg .bubble-col {
flex: 1 1 auto;
min-width: 0;
}
.msg .role-label {
font-size: .78rem;
font-weight: 600;
color: var(--muted);
margin-bottom: 3px;
}
.msg.user .bubble {
background: var(--bubble-user);
border-radius: var(--radius);
padding: 10px 14px;
display: inline-block;
}
.msg.assistant .bubble {
background: var(--bubble-assistant);
padding: 0;
}
/* Markdown rendering inside assistant bubble */
.bubble.markdown { line-height: 1.6; font-size: .96rem; }
.bubble.markdown > *:first-child { margin-top: 0; }
.bubble.markdown > *:last-child { margin-bottom: 0; }
.bubble.markdown p { margin: 0 0 .8em; }
.bubble.markdown h1, .bubble.markdown h2, .bubble.markdown h3 {
margin: 1.1em 0 .5em;
font-weight: 600;
line-height: 1.3;
}
.bubble.markdown h1 { font-size: 1.25rem; }
.bubble.markdown h2 { font-size: 1.1rem; }
.bubble.markdown h3 { font-size: 1rem; }
.bubble.markdown ul, .bubble.markdown ol {
margin: 0 0 .8em;
padding-left: 1.4em;
}
.bubble.markdown li { margin: .2em 0; }
.bubble.markdown a { color: var(--accent); text-decoration: none; }
.bubble.markdown a:hover { color: var(--accent-secondary); text-decoration: underline; }
.bubble.markdown code {
background: var(--bg-sunken);
border-radius: 4px;
padding: .15em .35em;
font-size: .88em;
font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.bubble.markdown pre {
background: #1e1e1e;
color: #e6e6e6;
border-radius: 8px;
padding: 12px 14px;
overflow-x: auto;
margin: 0 0 .8em;
}
.bubble.markdown pre code {
background: none;
padding: 0;
color: inherit;
}
.bubble.markdown blockquote {
border-left: 3px solid var(--line);
margin: 0 0 .8em;
padding: 0 0 0 .9em;
color: var(--muted);
}
.bubble.markdown table {
border-collapse: collapse;
margin: 0 0 .8em;
font-size: .9em;
}
.bubble.markdown th, .bubble.markdown td {
border: 1px solid var(--line);
padding: 5px 10px;
}
.bubble.markdown hr {
border: none;
border-top: 1px solid var(--line);
margin: 1em 0;
}
/* Streaming caret */
.bubble.streaming::after {
content: "▋";
display: inline-block;
margin-left: 2px;
animation: blink 1s steps(1) infinite;
color: var(--muted);
}
@keyframes blink { 50% { opacity: 0; } }
.status-line {
color: var(--muted);
font-size: .82rem;
margin: 4px 0 0;
min-height: 1.1em;
}
/* ---------- Sources ---------- */
.sources-toggle {
margin-top: 24px;
}
.sources-toggle summary {
display: inline-flex;
align-items: center;
gap: 5px;
cursor: pointer;
font-size: .82rem;
font-weight: 500;
color: #aaa;
list-style: none;
user-select: none;
}
.sources-toggle summary::-webkit-details-marker {
display: none;
}
.sources-toggle summary::before {
content: "^";
display: inline-block;
font-weight: 700;
transform: rotate(180deg);
transition: transform .15s ease;
}
.sources-toggle[open] summary::before {
transform: rotate(0deg);
}
.sources {
margin-top: 8px;
display: flex;
flex-direction: column;
gap: 8px;
}
.source-card {
border: 1px solid var(--line);
border-left: 3px solid var(--state-gold);
border-radius: 0 10px 10px 0;
padding: 8px 12px;
background: var(--bg-sunken);
font-size: .85rem;
}
.source-card .loc {
color: var(--muted);
font-size: .78rem;
margin-bottom: 3px;
}
.source-card .quote {
font-style: italic;
color: var(--fg-body);
}
.source-card:target {
border-left-color: var(--state-maroon);
background: var(--bg);
}
.bubble.markdown a[href^="#cite-"] {
font-size: .75em;
font-weight: 600;
vertical-align: super;
text-decoration: none;
padding: 0 1px;
}
.error-text {
color: var(--state-maroon);
font-size: .88rem;
}
/* ---------- Composer ---------- */
.composer-wrap {
border-top: 1px solid var(--line);
background: var(--bg);
flex-shrink: 0;
transition: background-color .2s ease, border-color .2s ease;
}
.composer {
max-width: 760px;
margin: 0 auto;
padding: 14px 20px 18px;
}
.composer form {
display: flex;
flex-direction: column;
gap: 6px;
border: 1px solid var(--line);
border-radius: 18px;
padding: 8px 8px 8px 16px;
background: var(--bg);
box-shadow: 0 1px 2px var(--shadow-tint);
transition: border-color .15s ease, background-color .2s ease, box-shadow .2s ease;
}
.composer form:focus-within {
border-color: var(--accent);
}
.composer-topbar {
display: flex;
align-items: center;
gap: 6px;
padding-bottom: 6px;
border-bottom: 1px solid var(--line);
}
.topic-label {
font-size: .72rem;
color: var(--muted);
font-weight: 500;
}
.composer-row {
display: flex;
align-items: flex-end;
gap: 10px;
}
.composer textarea {
flex: 1 1 auto;
border: none;
outline: none;
resize: none;
font: inherit;
font-size: .95rem;
max-height: 200px;
padding: 8px 0;
background: transparent;
color: var(--fg-body);
}
.composer button.send {
flex-shrink: 0;
width: 34px;
height: 34px;
border-radius: 50%;
border: none;
background: var(--accent);
color: var(--accent-fg);
cursor: pointer;
display: flex;
align-items: center;
justify-content: center;
font-size: 1rem;
transition: opacity .15s;
}
.composer button.send:disabled {
opacity: .35;
cursor: default;
}
.composer .hint {
text-align: center;
color: var(--muted);
font-size: .72rem;
margin: 8px 0 0;
}