/* Saerdna – Chatfenster. Farben bei Bedarf hier anpassen. */
.saerdna {
	--s-ink: #1f2933;
	--s-muted: #66707a;
	--s-line: #dfe3e7;
	--s-paper: #ffffff;
	--s-soft: #f3f5f7;
	--s-accent: #04254e;      /* Gr8hub-Dunkelblau */
	--s-accent-ink: #ffffff;
	font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	color: var(--s-ink);
	background: var(--s-paper);
	border: 1px solid var(--s-line);
	border-radius: 14px;
	max-width: 760px;
	margin: 0 auto;
	display: flex;
	flex-direction: column;
	min-height: 560px;
	height: 75vh;
	max-height: 820px;
	box-sizing: border-box;
	overflow: hidden;
}
.saerdna *, .saerdna *::before, .saerdna *::after { box-sizing: border-box; }

/* Kopf mit Spiegel-Wortmarke */
.saerdna-head {
	display: flex;
	align-items: baseline;
	flex-wrap: wrap;
	gap: 4px 14px;
	padding: 20px 24px 16px;
	border-bottom: 1px solid var(--s-line);
}
.saerdna-name {
	all: unset;
	position: relative;
	display: inline-grid;
	font-size: 28px;
	font-weight: 700;
	letter-spacing: 0.02em;
	line-height: 1.1;
	cursor: default;
}
/* Theme-Vorgaben für Buttons überschreiben, damit die Wortmarke kräftig bleibt */
.saerdna .saerdna-name,
.saerdna .saerdna-name > span {
	font-family: inherit !important;
	font-weight: 700 !important;
	font-size: 28px !important;
	text-transform: none !important;
	letter-spacing: 0.02em !important;
	background: none !important;
	border: 0 !important;
	box-shadow: none !important;
	padding: 0 !important;
	color: var(--s-ink);
}
.saerdna .saerdna-name > span.saerdna-name-b { color: var(--s-accent); }
.saerdna-name > span { grid-area: 1 / 1; transition: opacity .45s ease, transform .45s ease; }
.saerdna-name-b { opacity: 0; transform: scaleX(-1); color: var(--s-accent); }
.saerdna-name:hover .saerdna-name-a,
.saerdna-name:focus-visible .saerdna-name-a { opacity: 0; transform: scaleX(-1); }
.saerdna-name:hover .saerdna-name-b,
.saerdna-name:focus-visible .saerdna-name-b { opacity: 1; transform: none; }
.saerdna-name:focus-visible { outline: 2px solid var(--s-accent); outline-offset: 4px; border-radius: 4px; }
.saerdna-sub { font-weight: 200; color: var(--s-muted); font-size: 15px; }
.saerdna-new {
	margin-left: auto;
	background: none;
	border: 1px solid var(--s-line);
	border-radius: 999px;
	padding: 6px 14px;
	font: inherit;
	font-size: 13px;
	color: var(--s-ink);
	cursor: pointer;
}
.saerdna-new:hover { border-color: var(--s-ink); }
.saerdna-new:focus-visible { outline: 2px solid var(--s-accent); outline-offset: 2px; }

/* Verlauf */
.saerdna-log {
	flex: 1 1 auto;
	overflow-y: auto;
	padding: 20px 24px;
	display: flex;
	flex-direction: column;
	gap: 18px;
	scroll-behavior: smooth;
}
.saerdna-msg { max-width: 88%; line-height: 1.6; font-size: 16px; }
.saerdna-msg p { margin: 0 0 .7em; }
.saerdna-msg p:last-child { margin-bottom: 0; }
.saerdna-msg ul, .saerdna-msg ol { margin: 0 0 .7em; padding-left: 1.3em; }
.saerdna-msg li { margin: .2em 0; }
.saerdna-msg--user {
	align-self: flex-end;
	background: var(--s-soft);
	padding: 10px 14px;
	border-radius: 14px 14px 4px 14px;
	white-space: pre-wrap;
}
.saerdna-msg--bot { align-self: flex-start; }
.saerdna-msg--error { color: #9b2c1f; font-size: 14px; }
.saerdna-msg--error small { display: block; color: var(--s-muted); margin-top: 4px; }

.saerdna-typing { display: inline-flex; gap: 5px; padding: 6px 0; }
.saerdna-typing i {
	width: 7px; height: 7px; border-radius: 50%;
	background: var(--s-muted);
	animation: saerdna-blink 1.2s infinite ease-in-out;
}
.saerdna-typing i:nth-child(2) { animation-delay: .15s; }
.saerdna-typing i:nth-child(3) { animation-delay: .3s; }
@keyframes saerdna-blink { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }

/* Startzustand: kompakt, ohne leere Fläche. Erst mit dem Gespräch wächst das Fenster. */
.saerdna[data-started="0"] { height: auto; min-height: 0; }
.saerdna[data-started="0"] .saerdna-log { display: none; }
.saerdna-empty { padding: 22px 24px 16px; }
.saerdna[data-started="1"] .saerdna-empty { display: none; }
.saerdna-hello { font-size: 20px; font-weight: 700; margin: 0 0 6px; }
.saerdna-intro { color: var(--s-muted); margin: 0 0 14px; line-height: 1.55; max-width: 60ch; }
.saerdna-starters { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.saerdna-starters button {
	background: var(--s-paper);
	border: 1px solid var(--s-line);
	border-radius: 10px;
	padding: 9px 14px;
	font: inherit;
	font-size: 15px;
	color: var(--s-ink);
	text-align: left;
	cursor: pointer;
}
.saerdna-starters button:hover { border-color: var(--s-accent); }
.saerdna-starters button:focus-visible { outline: 2px solid var(--s-accent); outline-offset: 2px; }

/* Eingabe */
.saerdna-form {
	display: flex;
	gap: 10px;
	align-items: flex-end;
	padding: 14px 24px 8px;
	border-top: 1px solid var(--s-line);
}
.saerdna-form textarea {
	flex: 1;
	resize: none;
	border: 1px solid var(--s-line);
	border-radius: 12px;
	padding: 11px 14px;
	font: inherit;
	font-size: 16px;
	line-height: 1.45;
	max-height: 180px;
	color: var(--s-ink);
	background: var(--s-paper);
}
.saerdna-form textarea:focus { outline: none; border-color: var(--s-accent); }
.saerdna-send, .saerdna-btn {
	background: var(--s-accent);
	color: var(--s-accent-ink);
	border: 0;
	border-radius: 12px;
	padding: 12px 18px;
	font: inherit;
	font-weight: 700;
	font-size: 15px;
	cursor: pointer;
	text-decoration: none;
	display: inline-block;
}
.saerdna-send:disabled { opacity: .5; cursor: default; }
.saerdna-send:focus-visible, .saerdna-btn:focus-visible { outline: 2px solid var(--s-ink); outline-offset: 2px; }

.saerdna-foot {
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 4px 12px;
	margin: 0;
	padding: 2px 24px 14px;
	font-size: 12px;
	color: var(--s-muted);
}

/* Nicht eingeloggt */
.saerdna--locked { height: auto; min-height: 0; padding-bottom: 24px; }
.saerdna--locked .saerdna-name { display: inline-block; }
.saerdna-locked-text { padding: 18px 24px 4px; margin: 0 0 12px; }
.saerdna--locked .saerdna-btn { margin-left: 24px; }

@media (max-width: 600px) {
	.saerdna { border-radius: 0; border-left: 0; border-right: 0; height: 80vh; }
	.saerdna-head, .saerdna-log, .saerdna-empty, .saerdna-form, .saerdna-foot { padding-left: 16px; padding-right: 16px; }
	.saerdna-msg { max-width: 100%; }
	.saerdna-new { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
	.saerdna-name > span, .saerdna-log { transition: none; scroll-behavior: auto; }
	.saerdna-typing i { animation: none; opacity: .6; }
}