/* ==========================================================================
   Xblu AI Website Assistant — chat widget
   v1.4.6: every color comes from a theme variable, so Light, Dark and Auto
   (follow the visitor's device) share one stylesheet. Text colors are chosen
   for WCAG AA contrast (4.5:1 or better) against the surfaces they sit on.
   ========================================================================== */

/* ---- Light theme (default) ---------------------------------------------- */
.xblu-ai {
	--xblu-accent: #146EF5;
	--xa-on-accent: #fff;            /* text on accent fills; set per-site from PHP */
	--xa-text: #152033;
	--xa-muted: #4b5565;
	--xa-surface: #fff;              /* header, chips row, form, footer, lead form */
	--xa-surface-2: #f7f9fc;         /* message area */
	--xa-bubble: #fff;               /* assistant bubble */
	--xa-bubble-border: #e2e7ee;
	--xa-line: #e8ecf2;
	--xa-field-bg: #fff;
	--xa-field-border: #cfd7e2;
	--xa-chip-bg: #fff;
	--xa-chip-border: #d5dde8;
	--xa-chip-text: #2f3a4c;
	--xa-close: #4e596b;
	--xa-link: var(--xa-link-l, var(--xblu-accent));   /* PHP supplies a contrast-checked version */
	--xa-lang-bg: rgba(0, 0, 0, .06);
	--xa-panel-border: rgba(17, 34, 51, .12);
	--xa-shadow: 0 18px 60px rgba(0, 0, 0, .2);
	--xa-pulse: 14%;
	color-scheme: light;
	font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
	color: var(--xa-text);
	line-height: 1.45;
	box-sizing: border-box;
}

/* ---- Dark theme ---------------------------------------------------------- */
.xblu-ai.xblu-ai--dark {
	--xa-text: #eef2f8;
	--xa-muted: #b8c2d0;
	--xa-surface: #111a28;
	--xa-surface-2: #0b1320;
	--xa-bubble: #1a2537;
	--xa-bubble-border: #2a384e;
	--xa-line: #223046;
	--xa-field-bg: #0b1320;
	--xa-field-border: #3a4b64;
	--xa-chip-bg: #162133;
	--xa-chip-border: #364760;
	--xa-chip-text: #e2e8f1;
	--xa-close: #c6cfdc;
	/* The brand color is lifted toward white (by PHP, just enough) so links stay readable on dark
	   backgrounds, even when the accent itself is a deep navy. */
	--xa-link: var(--xa-link-d, color-mix(in srgb, var(--xblu-accent) 40%, #fff));
	--xa-lang-bg: rgba(255, 255, 255, .09);
	--xa-panel-border: rgba(255, 255, 255, .12);
	--xa-shadow: 0 18px 60px rgba(0, 0, 0, .55);
	--xa-pulse: 16%;
	color-scheme: dark;
}

/* ---- Auto: follow the visitor's device ----------------------------------- */
@media (prefers-color-scheme: dark) {
	.xblu-ai.xblu-ai--auto {
		--xa-text: #eef2f8;
		--xa-muted: #b8c2d0;
		--xa-surface: #111a28;
		--xa-surface-2: #0b1320;
		--xa-bubble: #1a2537;
		--xa-bubble-border: #2a384e;
		--xa-line: #223046;
		--xa-field-bg: #0b1320;
		--xa-field-border: #3a4b64;
		--xa-chip-bg: #162133;
		--xa-chip-border: #364760;
		--xa-chip-text: #e2e8f1;
		--xa-close: #c6cfdc;
		--xa-link: var(--xa-link-d, color-mix(in srgb, var(--xblu-accent) 40%, #fff));
		--xa-lang-bg: rgba(255, 255, 255, .09);
		--xa-panel-border: rgba(255, 255, 255, .12);
		--xa-shadow: 0 18px 60px rgba(0, 0, 0, .55);
		--xa-pulse: 16%;
		color-scheme: dark;
	}
}

/* ---- Layout & components ------------------------------------------------- */
.xblu-ai * { box-sizing: border-box; }
.xblu-ai--floating { position: fixed; right: 22px; bottom: 22px; z-index: 999999; }

.xblu-ai__launcher { border: 0; border-radius: 999px; background: var(--xblu-accent); color: var(--xa-on-accent); font-weight: 700; font-size: 15px; padding: 13px 18px; box-shadow: 0 10px 30px rgba(0, 0, 0, .18); cursor: pointer; display: flex; gap: 8px; align-items: center; }
.xblu-ai__spark { font-size: 18px; }

.xblu-ai__panel { position: relative; width: min(390px, calc(100vw - 28px)); height: min(620px, calc(100vh - 100px)); background: var(--xa-surface); color: var(--xa-text); border: 1px solid var(--xa-panel-border); border-radius: 18px; box-shadow: var(--xa-shadow); overflow: hidden; display: flex; flex-direction: column; }
.xblu-ai--floating .xblu-ai__panel { position: absolute; right: 0; bottom: 64px; animation: xblu-ai-pulse 2.6s ease-in-out infinite; }
@keyframes xblu-ai-pulse {
	0%, 100% { box-shadow: var(--xa-shadow), 0 0 0 0 color-mix(in srgb, var(--xblu-accent) 50%, transparent); }
	50% { box-shadow: var(--xa-shadow), 0 0 0 14px color-mix(in srgb, var(--xblu-accent) 0%, transparent); }
}
.xblu-ai--inline .xblu-ai__panel { width: 100%; max-width: 620px; height: 620px; box-shadow: 0 8px 34px rgba(0, 0, 0, .1); }
.xblu-ai__panel[hidden] { display: none; }

/* Header. v1.4.5: the language picker wraps under a long title instead of covering it. */
.xblu-ai__header { padding: 16px 17px; border-bottom: 1px solid var(--xa-line); display: flex; flex-wrap: wrap; row-gap: 8px; justify-content: space-between; align-items: center; background: var(--xa-surface); animation: xblu-ai-bg-pulse 2.6s ease-in-out infinite; }
@keyframes xblu-ai-bg-pulse {
	0%, 100% { background-color: var(--xa-surface); }
	50% { background-color: color-mix(in srgb, var(--xblu-accent) var(--xa-pulse), var(--xa-surface)); }
}
.xblu-ai__brand { display: flex; align-items: center; gap: 10px; min-width: 0; flex: 1 1 auto; order: 1; }
.xblu-ai__brand > div { min-width: 0; }
.xblu-ai__logo-box { width: 36px; height: 36px; flex-shrink: 0; border-radius: 9px; background: #fff; border: 1px solid var(--xa-bubble-border); display: flex; align-items: center; justify-content: center; overflow: hidden; padding: 3px; }
.xblu-ai__logo { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; display: block; }
.xblu-ai__header strong { display: block; font-size: 15px; color: var(--xa-text); }
.xblu-ai__brand strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.xblu-ai__status { display: block; font-size: 12px; color: var(--xa-muted); margin-top: 1px; }
.xblu-ai__status:before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--xblu-accent); margin-right: 5px; animation: xblu-ai-dot-pulse 2s ease-in-out infinite; }
@keyframes xblu-ai-dot-pulse {
	0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--xblu-accent) 65%, transparent); }
	50% { box-shadow: 0 0 0 6px color-mix(in srgb, var(--xblu-accent) 0%, transparent); }
}
.xblu-ai__close { order: 2; flex: none; border: 0; background: transparent; font-size: 26px; line-height: 1; color: var(--xa-close); cursor: pointer; padding: 0 4px; }
.xblu-ai__close:hover { color: var(--xa-text); }

/* Language switch */
.xblu-ai__lang { display: inline-flex; order: 3; margin-left: auto; margin-right: 6px; padding: 2px; border-radius: 999px; background: var(--xa-lang-bg); flex: none; }
.xblu-ai__lang button { appearance: none; border: 0; background: transparent; color: var(--xa-muted); font: 700 10px/1 inherit; letter-spacing: .4px; padding: 4px 7px; border-radius: 999px; cursor: pointer; transition: background .2s, color .2s; }
.xblu-ai__lang button:hover { color: var(--xa-text); }
.xblu-ai__lang button[aria-pressed="true"] { background: var(--xblu-accent); color: var(--xa-on-accent); box-shadow: 0 2px 6px rgba(0, 0, 0, .15); }
.xblu-ai__lang button:focus-visible { outline: 2px solid var(--xa-link); outline-offset: 2px; }

/* Messages */
.xblu-ai__messages { flex: 1; overflow: auto; padding: 18px; background: var(--xa-surface-2); animation: xblu-ai-bg-pulse-messages 2.6s ease-in-out infinite; }
@keyframes xblu-ai-bg-pulse-messages {
	0%, 100% { background-color: var(--xa-surface-2); }
	50% { background-color: color-mix(in srgb, var(--xblu-accent) var(--xa-pulse), var(--xa-surface-2)); }
}
.xblu-ai__message { max-width: 88%; padding: 10px 12px; border-radius: 14px; margin: 0 0 10px; font-size: 14px; white-space: pre-wrap; overflow-wrap: anywhere; position: relative; }
.xblu-ai__message--assistant { background: var(--xa-bubble); color: var(--xa-text); border: 1px solid var(--xa-bubble-border); border-bottom-left-radius: 5px; }
.xblu-ai__message--user { margin-left: auto; background: var(--xblu-accent); color: var(--xa-on-accent); border-bottom-right-radius: 5px; }
.xblu-ai__typing { color: var(--xa-muted); font-style: italic; }
.xblu-ai__message--assistant a { color: var(--xa-link); text-decoration: underline; text-underline-offset: 2px; font-weight: 600; overflow-wrap: anywhere; }
.xblu-ai__message--assistant a:hover { text-decoration-thickness: 2px; }

/* Quick-choice chips */
.xblu-ai__chips { padding: 9px 12px 5px; display: flex; gap: 6px; overflow-x: auto; background: var(--xa-surface); border-top: 1px solid var(--xa-line); animation: xblu-ai-bg-pulse 2.6s ease-in-out infinite; }
.xblu-ai__chips button { white-space: nowrap; border: 1px solid var(--xa-chip-border); background: var(--xa-chip-bg); border-radius: 999px; padding: 6px 9px; font-size: 12px; cursor: pointer; color: var(--xa-chip-text); }
.xblu-ai__chips button:hover { border-color: var(--xa-link); color: var(--xa-link); }

/* Message box */
.xblu-ai__form { display: flex; gap: 8px; padding: 10px 12px; background: var(--xa-surface); animation: xblu-ai-bg-pulse 2.6s ease-in-out infinite; }
.xblu-ai__form textarea { flex: 1; resize: none; min-height: 42px; max-height: 110px; border: 1px solid var(--xa-field-border); border-radius: 12px; padding: 10px 12px; font: inherit; font-size: 14px; outline: none; background: var(--xa-field-bg); color: var(--xa-text); }
.xblu-ai__form textarea:focus { border-color: var(--xa-link); box-shadow: 0 0 0 3px color-mix(in srgb, var(--xblu-accent) 18%, transparent); }
.xblu-ai__form button { width: 42px; height: 42px; border-radius: 12px; border: 0; background: var(--xblu-accent); color: var(--xa-on-accent); font-size: 20px; cursor: pointer; }
.xblu-ai textarea::placeholder, .xblu-ai input::placeholder { color: var(--xa-muted); opacity: 1; }

/* Footer */
.xblu-ai__footer { padding: 0 12px 12px; background: var(--xa-surface); text-align: center; animation: xblu-ai-bg-pulse 2.6s ease-in-out infinite; }
.xblu-ai__lead-open { border: 0; background: transparent; color: var(--xa-link); font-weight: 700; font-size: 12px; cursor: pointer; padding: 4px; }
.xblu-ai__footer small { display: block; color: var(--xa-muted); font-size: 10px; margin-top: 3px; }

/* Lead form */
.xblu-ai__lead { position: absolute; inset: 0; background: var(--xa-surface); color: var(--xa-text); z-index: 3; padding: 22px; display: flex; flex-direction: column; gap: 10px; overflow: auto; }
.xblu-ai--inline .xblu-ai__lead { position: absolute; }
.xblu-ai__lead[hidden] { display: none; }
.xblu-ai__lead strong { font-size: 17px; margin-bottom: 5px; color: var(--xa-text); }
.xblu-ai__lead input, .xblu-ai__lead textarea { width: 100%; border: 1px solid var(--xa-field-border); border-radius: 10px; padding: 10px 11px; font: inherit; font-size: 14px; background: var(--xa-field-bg); color: var(--xa-text); }
.xblu-ai__lead input:focus, .xblu-ai__lead textarea:focus { outline: none; border-color: var(--xa-link); box-shadow: 0 0 0 3px color-mix(in srgb, var(--xblu-accent) 18%, transparent); }
.xblu-ai__lead-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 4px; }
.xblu-ai__lead-actions button { border: 1px solid var(--xa-field-border); background: var(--xa-chip-bg); color: var(--xa-text); border-radius: 9px; padding: 9px 12px; cursor: pointer; font: inherit; font-size: 14px; }
.xblu-ai__lead-actions button[type=submit] { background: var(--xblu-accent); color: var(--xa-on-accent); border-color: var(--xblu-accent); font-weight: 700; }
.xblu-ai__lead-status { font-size: 13px; color: var(--xa-muted); }
.xblu-ai__hp { position: absolute !important; left: -99999px !important; opacity: 0 !important; }

.xblu-ai .screen-reader-text { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }

@media (max-width: 600px) {
	.xblu-ai--floating { right: 12px; bottom: 12px; }
	.xblu-ai--floating .xblu-ai__panel { position: fixed; left: 8px; right: 8px; bottom: 74px; width: auto; height: min(72vh, 620px); }
	.xblu-ai__launcher { padding: 12px 15px; }
}
@media (prefers-reduced-motion: reduce) {
	.xblu-ai__panel, .xblu-ai__status:before, .xblu-ai__header, .xblu-ai__chips, .xblu-ai__form, .xblu-ai__footer, .xblu-ai__messages { animation: none; }
}