/* Think Tanks Connect: the website assistant. Square, flat, Think Tanks colours. */
.ttcn-chat {
	--tc-bg: #F8F8F6; --tc-paper: #FFFFFF; --tc-ink: #111111; --tc-muted: #666666; --tc-line: #D6D6D6;
	--tc-accent: #3A5F5F; --tc-gold: #A07E28; --tc-err: #a3271a;
	--tc-sans: "Helvetica Neue", Helvetica, Arial, sans-serif; --tc-mono: "Menlo", Monaco, "Courier New", monospace;
	position: fixed; right: 20px; bottom: 20px; z-index: 9990;
	font-family: var(--tc-sans); font-size: 15px; line-height: 1.5; color: var(--tc-ink);
	-webkit-font-smoothing: antialiased;
}
.ttcn-chat *, .ttcn-chat *::before, .ttcn-chat *::after { box-sizing: border-box; }
.ttcn-chat [hidden] { display: none !important; }
.ttcn-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.ttcn-chat__launcher {
	display: inline-flex; align-items: center; gap: 10px; min-height: 46px; padding: 0 18px;
	background: var(--tc-ink); color: var(--tc-bg); border: 1px solid var(--tc-ink); border-radius: 0;
	font: 13px/1 var(--tc-mono); letter-spacing: .02em; cursor: pointer; transition: background .15s ease;
}
.ttcn-chat__launcher:hover { background: var(--tc-accent); border-color: var(--tc-accent); }
.ttcn-chat__launcher:focus-visible { outline: 2px solid var(--tc-accent); outline-offset: 3px; }

.ttcn-chat__panel {
	position: absolute; right: 0; bottom: calc(100% + 12px);
	width: min(400px, calc(100vw - 40px)); height: min(620px, calc(100vh - 110px));
	display: flex; flex-direction: column; background: var(--tc-paper); border: 1px solid var(--tc-ink);
}
.ttcn-chat__head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 12px 14px 18px; border-bottom: 1px solid var(--tc-line); background: var(--tc-bg); }
.ttcn-chat__title { margin: 0; font: 600 16px/1.2 var(--tc-sans); color: var(--tc-ink); letter-spacing: -.01em; }
.ttcn-chat__sub { margin: 3px 0 0; font: 11px/1.3 var(--tc-mono); color: var(--tc-muted); text-transform: uppercase; letter-spacing: .04em; }
.ttcn-chat__tools { display: flex; gap: 2px; }
.ttcn-chat__icon { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; padding: 0; border: 0; border-radius: 0; background: transparent; color: var(--tc-ink); cursor: pointer; }
.ttcn-chat__icon:hover { background: var(--tc-line); }
.ttcn-chat__icon:focus-visible { outline: 2px solid var(--tc-accent); outline-offset: -2px; }

.ttcn-chat__log { flex: 1; overflow-y: auto; padding: 18px; display: flex; flex-direction: column; gap: 14px; overscroll-behavior: contain; }
.ttcn-chat__log:focus { outline: none; }
.ttcn-chat__msg { display: flex; flex-direction: column; gap: 8px; max-width: 92%; }
.ttcn-chat__msg--user { align-self: flex-end; align-items: flex-end; }
.ttcn-chat__bubble { padding: 10px 13px; border: 1px solid var(--tc-line); background: var(--tc-bg); }
.ttcn-chat__bubble p { margin: 0 0 8px; } .ttcn-chat__bubble p:last-child { margin: 0; }
.ttcn-chat__msg--user .ttcn-chat__bubble { background: var(--tc-ink); color: var(--tc-bg); border-color: var(--tc-ink); }

.ttcn-chat__card { display: flex; flex-direction: column; gap: 4px; padding: 12px 14px; border: 1px solid var(--tc-ink); background: var(--tc-paper); color: var(--tc-ink); text-decoration: none; width: 100%; }
a.ttcn-chat__card:hover { border-color: var(--tc-accent); }
a.ttcn-chat__card:hover .ttcn-chat__card-cta { color: var(--tc-accent); }
a.ttcn-chat__card:focus-visible { outline: 2px solid var(--tc-accent); outline-offset: 2px; }
.ttcn-chat__card-title { font-weight: 600; }
.ttcn-chat__card-text { font-size: 14px; color: var(--tc-muted); }
.ttcn-chat__card-cta { font: 12px/1.4 var(--tc-mono); margin-top: 4px; }

.ttcn-chat__qform { display: flex; flex-direction: column; gap: 10px; margin-top: 8px; }
.ttcn-chat__field { display: flex; flex-direction: column; gap: 3px; }
.ttcn-chat__field > span { font: 11px/1.3 var(--tc-mono); color: var(--tc-muted); text-transform: uppercase; letter-spacing: .04em; }
.ttcn-chat__field input, .ttcn-chat__field textarea, .ttcn-chat__field select {
	font: 15px/1.4 var(--tc-sans); color: var(--tc-ink); padding: 6px 0; border: 0; border-bottom: 1px solid var(--tc-line);
	border-radius: 0; background: transparent; width: 100%;
}
.ttcn-chat__field input:focus, .ttcn-chat__field textarea:focus, .ttcn-chat__field select:focus { outline: none; border-bottom-color: var(--tc-accent); }
.ttcn-chat__hp { position: absolute !important; left: -10000px; width: 1px; height: 1px; }
.ttcn-chat__ts:empty { display: none; }
.ttcn-chat__ferr { margin: 0; color: var(--tc-err); font-size: 14px; }
.ttcn-chat__fbtn { align-self: flex-start; background: var(--tc-ink); color: var(--tc-bg); border: 1px solid var(--tc-ink); border-radius: 0; padding: 9px 16px; font: 12px/1 var(--tc-mono); cursor: pointer; }
.ttcn-chat__fbtn:hover { background: var(--tc-accent); border-color: var(--tc-accent); }
.ttcn-chat__fbtn[disabled] { opacity: .6; cursor: wait; }
.ttcn-chat__fsmall { margin: 0; font-size: 12px; color: var(--tc-muted); }

.ttcn-chat__note { margin: 0; padding: 8px 12px; font-size: 13.5px; border-left: 2px solid var(--tc-line); color: var(--tc-muted); }
.ttcn-chat__note--ok { border-left-color: var(--tc-accent); color: var(--tc-accent); }
.ttcn-chat__note--err { border-left-color: var(--tc-err); color: var(--tc-err); }

.ttcn-chat__typing { display: inline-flex; gap: 4px; padding: 12px 14px; border: 1px solid var(--tc-line); background: var(--tc-bg); align-self: flex-start; }
.ttcn-chat__typing span { width: 6px; height: 6px; background: var(--tc-muted); animation: ttcn-dot 1.2s infinite ease-in-out; }
.ttcn-chat__typing span:nth-child(2) { animation-delay: .15s; } .ttcn-chat__typing span:nth-child(3) { animation-delay: .3s; }
@keyframes ttcn-dot { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }

.ttcn-chat__starters { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 18px 12px; }
.ttcn-chat__starter { font: 12.5px/1.3 var(--tc-sans); padding: 7px 10px; border: 1px solid var(--tc-line); border-radius: 0; background: var(--tc-paper); color: var(--tc-ink); cursor: pointer; text-align: left; }
.ttcn-chat__starter:hover { border-color: var(--tc-ink); }

.ttcn-chat__compose { display: flex; align-items: flex-end; gap: 8px; padding: 12px; border-top: 1px solid var(--tc-line); }
.ttcn-chat__compose textarea { flex: 1; resize: none; font: 15px/1.4 var(--tc-sans); color: var(--tc-ink); padding: 9px 10px; border: 1px solid var(--tc-line); border-radius: 0; background: var(--tc-paper); max-height: 140px; }
.ttcn-chat__compose textarea:focus { outline: none; border-color: var(--tc-ink); }
.ttcn-chat__send { width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center; background: var(--tc-ink); color: var(--tc-bg); border: 0; border-radius: 0; cursor: pointer; }
.ttcn-chat__send:hover { background: var(--tc-accent); }
.ttcn-chat__send[disabled] { opacity: .35; cursor: default; background: var(--tc-ink); }
.ttcn-chat__legal { margin: 0; padding: 0 12px 10px; font: 10.5px/1.4 var(--tc-mono); color: var(--tc-muted); }

@media (max-width: 520px) {
	.ttcn-chat { right: 12px; bottom: 12px; }
	.ttcn-chat__panel { position: fixed; inset: 0; width: auto; height: auto; border: 0; }
}
@media (prefers-reduced-motion: reduce) { .ttcn-chat__typing span { animation: none; opacity: .6; } }

/* 1.2: one message form, the project picker inside the chat, and a teal header strip. */
.ttcn-chat__head { border-top: 3px solid var(--tc-accent); }
.ttcn-chat__check { display: flex; gap: 8px; align-items: flex-start; font-size: 13px; line-height: 1.4; color: var(--tc-ink); cursor: pointer; margin: 2px 0 4px; }
.ttcn-chat__check input { margin: 2px 0 0; accent-color: var(--tc-accent); width: 15px; height: 15px; flex: none; }
.ttcn-chat .ttcn-pick__input { font-size: 14px; padding: 7px 9px; border: 1px solid var(--tc-line); background: var(--tc-paper); }
.ttcn-chat .ttcn-pick__input:focus { border-color: var(--tc-accent); }
.ttcn-chat .ttcn-pick__list { max-height: 200px; }
.ttcn-chat .ttcn-pick__opt { font-size: 13.5px; padding: 8px 10px; }
.ttcn-chat .ttcn-pick__chip { font-size: 13.5px; margin: 2px 0 0; }
.ttcn-chat__field input:focus, .ttcn-chat__field textarea:focus { outline: none; border-color: var(--tc-accent); }
.ttcn-chat__card a, .ttcn-chat__card-cta { color: var(--tc-accent); }
.ttcn-chat__legal a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }