/**
 * UseAI Assistant - Frontend chat widget styles.
 *
 * @package UseAI_Assistant
 */

#useai-widget-root {
	--useai-primary: #6C5CE7;
	--useai-primary-contrast: #ffffff;
	--useai-bg: rgba(255, 255, 255, 0.75);
	--useai-bg-solid: #ffffff;
	--useai-text: #1a1a2e;
	--useai-text-muted: #6b7280;
	--useai-border: rgba(0, 0, 0, 0.08);
	--useai-radius: 20px;
	--useai-radius-sm: 12px;
	--useai-shadow: 0 20px 60px rgba(20, 20, 40, 0.25);
	--useai-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

	position: fixed;
	z-index: 999999;
	bottom: 24px;
	font-family: var(--useai-font);
	box-sizing: border-box;
}

#useai-widget-root *,
#useai-widget-root *::before,
#useai-widget-root *::after {
	box-sizing: border-box;
}

#useai-widget-root.useai-position-bottom-right {
	right: 24px;
}

#useai-widget-root.useai-position-bottom-left {
	left: 24px;
}

#useai-widget-root.useai-square {
	--useai-radius: 6px;
	--useai-radius-sm: 4px;
}

#useai-widget-root.useai-dark {
	--useai-bg: rgba(24, 24, 38, 0.75);
	--useai-bg-solid: #181826;
	--useai-text: #f1f1f6;
	--useai-text-muted: #9ca3af;
	--useai-border: rgba(255, 255, 255, 0.08);
}

/* Launcher button */
.useai-launcher {
	width: 60px;
	height: 60px;
	border-radius: 50%;
	background: var(--useai-primary);
	color: var(--useai-primary-contrast);
	border: none;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	box-shadow: var(--useai-shadow);
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.useai-launcher:hover {
	transform: scale(1.06);
}

.useai-launcher:focus-visible {
	outline: 3px solid var(--useai-primary);
	outline-offset: 3px;
}

.useai-launcher-icon {
	width: 28px;
	height: 28px;
}

.useai-launcher-avatar {
	width: 100%;
	height: 100%;
	border-radius: 50%;
	object-fit: cover;
}

/* Panel */
.useai-panel {
	position: absolute;
	bottom: 76px;
	width: min(380px, calc(100vw - 32px));
	height: min(600px, calc(100vh - 140px));
	display: flex;
	flex-direction: column;
	background: var(--useai-bg);
	backdrop-filter: blur(20px) saturate(180%);
	-webkit-backdrop-filter: blur(20px) saturate(180%);
	border: 1px solid var(--useai-border);
	border-radius: var(--useai-radius);
	box-shadow: var(--useai-shadow);
	overflow: hidden;
	opacity: 0;
	transform: translateY(12px) scale(0.98);
	transition: opacity 0.18s ease, transform 0.18s ease;
	pointer-events: none;
}

#useai-widget-root.useai-position-bottom-right .useai-panel {
	right: 0;
}

#useai-widget-root.useai-position-bottom-left .useai-panel {
	left: 0;
}

.useai-panel-open {
	opacity: 1;
	transform: translateY(0) scale(1);
	pointer-events: auto;
}

.useai-panel-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 14px 16px;
	background: var(--useai-primary);
	color: var(--useai-primary-contrast);
	flex-shrink: 0;
}

.useai-panel-header-info {
	display: flex;
	align-items: center;
	gap: 10px;
}

.useai-panel-avatar {
	width: 28px;
	height: 28px;
	border-radius: 50%;
	object-fit: cover;
}

.useai-panel-title {
	font-weight: 600;
	font-size: 15px;
}

.useai-close-btn {
	background: transparent;
	border: none;
	color: inherit;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 4px;
	border-radius: 6px;
	opacity: 0.9;
}

.useai-close-btn:hover {
	opacity: 1;
	background: rgba(255, 255, 255, 0.15);
}

/* Messages */
.useai-messages {
	flex: 1;
	overflow-y: auto;
	padding: 16px;
	display: flex;
	flex-direction: column;
	gap: 12px;
}

.useai-message {
	display: flex;
	flex-direction: column;
	max-width: 88%;
}

.useai-message-user {
	align-self: flex-end;
	align-items: flex-end;
}

.useai-message-bot {
	align-self: flex-start;
	align-items: flex-start;
}

.useai-bubble {
	padding: 10px 14px;
	border-radius: var(--useai-radius-sm);
	font-size: 14px;
	line-height: 1.5;
	word-wrap: break-word;
}

.useai-message-user .useai-bubble {
	background: var(--useai-primary);
	color: var(--useai-primary-contrast);
	border-bottom-right-radius: 4px;
}

.useai-message-bot .useai-bubble {
	background: var(--useai-bg-solid);
	color: var(--useai-text);
	border: 1px solid var(--useai-border);
	border-bottom-left-radius: 4px;
}

.useai-message-thumb {
	margin-top: 8px;
	max-width: 100%;
	border-radius: var(--useai-radius-sm);
}

.useai-source-badge {
	margin-top: 6px;
	font-size: 11px;
	text-transform: uppercase;
	letter-spacing: 0.03em;
	padding: 2px 8px;
	border-radius: 999px;
	background: rgba(108, 92, 231, 0.12);
	color: var(--useai-primary);
}

.useai-message-sources {
	margin-top: 6px;
	display: flex;
	flex-direction: column;
	gap: 2px;
}

.useai-message-sources a {
	font-size: 12px;
	color: var(--useai-primary);
	text-decoration: underline;
}

.useai-message-actions {
	display: flex;
	align-items: center;
	gap: 8px;
	margin-top: 4px;
	font-size: 11px;
	color: var(--useai-text-muted);
}

.useai-copy-btn,
.useai-feedback-btn {
	background: transparent;
	border: none;
	cursor: pointer;
	color: var(--useai-text-muted);
	font-size: 11px;
	padding: 2px 4px;
}

.useai-copy-btn:hover,
.useai-feedback-btn:hover {
	color: var(--useai-text);
}

/* Typing indicator */
.useai-typing .useai-bubble {
	display: flex;
	gap: 4px;
	align-items: center;
	padding: 12px 14px;
}

.useai-dot {
	width: 6px;
	height: 6px;
	border-radius: 50%;
	background: var(--useai-text-muted);
	animation: useai-bounce 1.2s infinite ease-in-out;
}

.useai-dot:nth-child(2) {
	animation-delay: 0.15s;
}

.useai-dot:nth-child(3) {
	animation-delay: 0.3s;
}

@keyframes useai-bounce {
	0%, 60%, 100% {
		transform: translateY(0);
		opacity: 0.5;
	}
	30% {
		transform: translateY(-4px);
		opacity: 1;
	}
}

/* Suggestions */
.useai-suggestions {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	padding: 0 16px 12px;
	flex-shrink: 0;
}

.useai-suggestion-chip {
	background: rgba(108, 92, 231, 0.1);
	color: var(--useai-primary);
	border: none;
	border-radius: 999px;
	padding: 6px 12px;
	font-size: 12px;
	cursor: pointer;
	transition: background 0.15s ease;
}

.useai-suggestion-chip:hover {
	background: rgba(108, 92, 231, 0.2);
}

/* Input form */
.useai-form {
	display: flex;
	align-items: flex-end;
	gap: 8px;
	padding: 12px 16px;
	border-top: 1px solid var(--useai-border);
	background: var(--useai-bg-solid);
	flex-shrink: 0;
}

.useai-input {
	flex: 1;
	resize: none;
	max-height: 120px;
	border: 1px solid var(--useai-border);
	border-radius: var(--useai-radius-sm);
	padding: 10px 12px;
	font-size: 14px;
	font-family: inherit;
	color: var(--useai-text);
	background: transparent;
}

.useai-input:focus {
	outline: none;
	border-color: var(--useai-primary);
}

.useai-send-btn {
	width: 38px;
	height: 38px;
	border-radius: 50%;
	border: none;
	background: var(--useai-primary);
	color: var(--useai-primary-contrast);
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	transition: opacity 0.15s ease;
}

.useai-send-btn:disabled {
	opacity: 0.5;
	cursor: not-allowed;
}

.useai-visually-hidden {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

/* Responsive: full-screen panel on small viewports */
@media (max-width: 480px) {
	.useai-panel {
		position: fixed;
		bottom: 0;
		left: 0;
		right: 0;
		top: 0;
		width: 100%;
		height: 100%;
		border-radius: 0;
	}

	#useai-widget-root {
		bottom: 16px;
	}

	#useai-widget-root.useai-position-bottom-right {
		right: 16px;
	}

	#useai-widget-root.useai-position-bottom-left {
		left: 16px;
	}
}