/* ChoiceKite Hansis AI — premium white editorial UI.
   No dark neon, no purple, no generic SaaS-chatbot look. */

:root {
	--ck-hansis-ink: #111827;
	--ck-hansis-ink-soft: #374151;
	--ck-hansis-muted: #6B7280;
	--ck-hansis-bg: #FFFFFF;
	--ck-hansis-soft: #F9FAFB;
	--ck-hansis-border: #E5E7EB;
	--ck-hansis-accent: #0D9488;
	--ck-hansis-accent-hover: #0F766E;
	--ck-hansis-radius: 16px;
	--ck-hansis-radius-sm: 10px;
	--ck-hansis-shadow: 0 20px 50px rgba(17, 24, 39, 0.14);
	--ck-hansis-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

#ck-hansis-panel, #ck-hansis-panel * { box-sizing: border-box; }

/* Prevents the page behind the panel from scrolling while it's open. */
html.ck-hansis-lock-scroll,
html.ck-hansis-lock-scroll body { overflow: hidden; }

.ck-hansis-trigger {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	padding: 0.5rem 0.95rem;
	border-radius: 999px;
	border: 1px solid var(--ck-hansis-border);
	background: var(--ck-hansis-bg);
	color: var(--ck-hansis-ink);
	font: 600 0.8125rem var(--ck-hansis-font);
	cursor: pointer;
	transition: border-color 150ms ease, color 150ms ease;
}
.ck-hansis-trigger:hover, .ck-hansis-trigger:focus-visible {
	border-color: var(--ck-hansis-ink);
}

.screen-reader-text {
	position: absolute;
	width: 1px; height: 1px;
	overflow: hidden;
	clip: rect(1px, 1px, 1px, 1px);
	white-space: nowrap;
}

/* ── Panel shell ── */
#ck-hansis-panel {
	position: fixed;
	inset: 0;
	z-index: 100001;
	pointer-events: none;
	font-family: var(--ck-hansis-font);
}
#ck-hansis-panel[hidden] { display: none; }
#ck-hansis-panel.is-open { pointer-events: auto; }

#ck-hansis-backdrop {
	position: absolute;
	inset: 0;
	background: rgba(17, 24, 39, 0.32);
	opacity: 0;
	transition: opacity 220ms ease;
}
#ck-hansis-panel.is-open #ck-hansis-backdrop { opacity: 1; }

/* ── Drawer — desktop right-side panel ── */
#ck-hansis-drawer {
	position: absolute;
	right: 0; top: 0; bottom: 0;
	width: min(400px, 100vw);
	background: var(--ck-hansis-bg);
	border-left: 1px solid var(--ck-hansis-border);
	display: flex;
	flex-direction: column;
	transform: translateX(100%);
	transition: transform 260ms cubic-bezier(0.4, 0, 0.2, 1);
	box-shadow: var(--ck-hansis-shadow);
}
#ck-hansis-panel.is-open #ck-hansis-drawer { transform: translateX(0); }

#ck-hansis-drag-handle { display: none; }

/* ── Drawer — mobile bottom sheet ── */
@media (max-width: 860px) {
	#ck-hansis-drawer {
		right: 0; left: 0;
		top: auto; bottom: 0;
		width: 100%;
		height: min(88vh, 720px);
		border-left: none;
		border-top: 1px solid var(--ck-hansis-border);
		border-radius: 20px 20px 0 0;
		transform: translateY(100%);
		padding-bottom: env(safe-area-inset-bottom, 0px);
	}
	#ck-hansis-panel.is-open #ck-hansis-drawer { transform: translateY(0); }

	#ck-hansis-drag-handle {
		display: block;
		width: 36px;
		height: 4px;
		border-radius: 2px;
		background: var(--ck-hansis-border);
		margin: 10px auto 0;
		flex-shrink: 0;
	}
}

/* ── Header ── */
#ck-hansis-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	padding: 1.1rem 1.15rem;
	border-bottom: 1px solid var(--ck-hansis-border);
	flex-shrink: 0;
}
#ck-hansis-identity { display: flex; align-items: center; gap: 0.65rem; min-width: 0; }
#ck-hansis-mark {
	width: 32px; height: 32px;
	flex-shrink: 0;
	border-radius: 9px;
	background: var(--ck-hansis-ink);
	color: #fff;
	display: flex; align-items: center; justify-content: center;
}
#ck-hansis-mark svg { width: 16px; height: 16px; }
#ck-hansis-identity-text { display: flex; flex-direction: column; min-width: 0; }
.ck-hansis-title { font-size: 0.9375rem; font-weight: 700; color: var(--ck-hansis-ink); line-height: 1.25; }
.ck-hansis-subtitle { font-size: 0.75rem; color: var(--ck-hansis-muted); line-height: 1.25; }

#ck-hansis-header-actions { display: flex; align-items: center; gap: 0.4rem; flex-shrink: 0; }
#ck-hansis-new, #ck-hansis-close {
	width: 36px; height: 36px;
	min-width: 44px; min-height: 44px;
	display: flex; align-items: center; justify-content: center;
	border-radius: var(--ck-hansis-radius-sm);
	border: 1px solid var(--ck-hansis-border);
	background: var(--ck-hansis-bg);
	color: var(--ck-hansis-ink-soft);
	cursor: pointer;
	transition: border-color 150ms ease, color 150ms ease;
}
@media (min-width: 861px) {
	#ck-hansis-new, #ck-hansis-close { width: 36px; height: 36px; min-width: 36px; min-height: 36px; }
}
#ck-hansis-new:hover, #ck-hansis-close:hover,
#ck-hansis-new:focus-visible, #ck-hansis-close:focus-visible {
	border-color: var(--ck-hansis-ink);
	color: var(--ck-hansis-ink);
}

/* ── Body / welcome / chat ── */
#ck-hansis-body {
	flex: 1;
	overflow-y: auto;
	display: flex;
	flex-direction: column;
	padding: 1.15rem;
	gap: 0.65rem;
}

#ck-hansis-welcome {
	padding: 0.5rem 0.1rem 0.75rem;
}
#ck-hansis-welcome-heading {
	margin: 0 0 0.25rem;
	font-size: 1.0625rem;
	font-weight: 700;
	color: var(--ck-hansis-ink);
}
#ck-hansis-welcome-body {
	margin: 0;
	font-size: 0.875rem;
	color: var(--ck-hansis-muted);
}
#ck-hansis-panel.ck-hansis-has-messages #ck-hansis-welcome { display: none; }

#ck-hansis-chat {
	display: flex;
	flex-direction: column;
	gap: 0.65rem;
}

.ck-hansis-msg {
	max-width: 86%;
	padding: 0.65rem 0.85rem;
	border-radius: 14px;
	font-size: 0.875rem;
	line-height: 1.55;
	white-space: pre-wrap;
	word-break: break-word;
}
.ck-hansis-msg--user {
	align-self: flex-end;
	background: var(--ck-hansis-ink);
	color: #fff;
	border-radius: 14px 14px 4px 14px;
}
.ck-hansis-msg--assistant {
	align-self: flex-start;
	background: var(--ck-hansis-soft);
	border: 1px solid var(--ck-hansis-border);
	color: var(--ck-hansis-ink-soft);
	border-radius: 14px 14px 14px 4px;
}
.ck-hansis-msg--error {
	align-self: flex-start;
	background: #FEF2F2;
	border: 1px solid #FECACA;
	color: #991B1B;
	border-radius: 14px 14px 14px 4px;
}

/* ── Thinking state ── */
.ck-hansis-thinking {
	align-self: flex-start;
	display: inline-flex;
	align-items: center;
	gap: 4px;
	padding: 0.65rem 0.85rem;
	border-radius: 14px 14px 14px 4px;
	background: var(--ck-hansis-soft);
	border: 1px solid var(--ck-hansis-border);
}
.ck-hansis-thinking span {
	width: 5px; height: 5px;
	border-radius: 50%;
	background: var(--ck-hansis-muted);
	animation: ck-hansis-dot 1.2s ease-in-out infinite;
}
.ck-hansis-thinking span:nth-child(2) { animation-delay: 0.15s; }
.ck-hansis-thinking span:nth-child(3) { animation-delay: 0.3s; }
@keyframes ck-hansis-dot {
	0%, 80%, 100% { transform: translateY(0); opacity: 0.35; }
	40% { transform: translateY(-4px); opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
	.ck-hansis-thinking span { animation: none; opacity: 0.6; }
}

/* ── Prompt chips ── */
#ck-hansis-prompts {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem;
	padding: 0 1.15rem 0.85rem;
	flex-shrink: 0;
}
#ck-hansis-panel.ck-hansis-has-messages #ck-hansis-prompts { display: none; }
.ck-hansis-chip {
	padding: 0.45rem 0.8rem;
	border-radius: 999px;
	border: 1px solid var(--ck-hansis-border);
	background: var(--ck-hansis-bg);
	color: var(--ck-hansis-ink-soft);
	font: 600 0.75rem var(--ck-hansis-font);
	cursor: pointer;
	min-height: 44px;
	transition: border-color 150ms ease, color 150ms ease;
}
.ck-hansis-chip:hover, .ck-hansis-chip:focus-visible {
	border-color: var(--ck-hansis-ink);
	color: var(--ck-hansis-ink);
}

/* ── Input bar ── */
#ck-hansis-inputbar {
	display: flex;
	align-items: flex-end;
	gap: 0.55rem;
	padding: 0.85rem 1.15rem;
	border-top: 1px solid var(--ck-hansis-border);
	flex-shrink: 0;
	margin: 0;
}
#ck-hansis-input {
	flex: 1;
	resize: none;
	max-height: 120px;
	min-height: 44px;
	padding: 0.65rem 0.85rem;
	border-radius: var(--ck-hansis-radius-sm);
	border: 1px solid var(--ck-hansis-border);
	background: var(--ck-hansis-soft);
	color: var(--ck-hansis-ink);
	font: 400 0.875rem/1.5 var(--ck-hansis-font);
	outline: none;
	transition: border-color 150ms ease;
}
#ck-hansis-input:focus-visible { border-color: var(--ck-hansis-ink); }
#ck-hansis-input::placeholder { color: var(--ck-hansis-muted); }

#ck-hansis-send {
	width: 44px; height: 44px;
	flex-shrink: 0;
	border-radius: var(--ck-hansis-radius-sm);
	border: none;
	background: var(--ck-hansis-ink);
	color: #fff;
	display: flex; align-items: center; justify-content: center;
	cursor: pointer;
	transition: background 150ms ease;
}
#ck-hansis-send:hover, #ck-hansis-send:focus-visible { background: var(--ck-hansis-ink-soft); }
#ck-hansis-send:disabled { background: var(--ck-hansis-border); color: var(--ck-hansis-muted); cursor: default; }

/* Visible focus state throughout (accessibility foundation) */
#ck-hansis-panel a:focus-visible,
#ck-hansis-panel button:focus-visible,
#ck-hansis-panel textarea:focus-visible {
	outline: 2px solid var(--ck-hansis-accent);
	outline-offset: 2px;
}