/*!
 * Author Box with Citation — front-end styles
 *
 * Naming: BEM-style under .ck-abc namespace.
 * Layout variants:   .ck-abc--horizontal | .ck-abc--vertical
 * Avatar shape:      .ck-abc--avatar-round | .ck-abc--avatar-square
 * Avatar size:       .ck-abc--avatar-sm (64px) | --avatar-md (88px) | --avatar-lg (112px)
 */

.ck-abc {
	/* Monochrome palette — well-crafted neutrals */
	--ck-ink:        #0a0a0a;
	--ck-ink-soft:   #1f1f1f;
	--ck-text:       #2a2a2a;
	--ck-muted:      #6b6b6b;
	--ck-muted-2:    #a3a3a3;
	--ck-rule:       #d4d4d4;
	--ck-rule-soft:  #e5e5e5;
	--ck-paper:      transparent;
	--ck-cite-bg:    #f5f5f5;
	--ck-cite-btn:   #ffffff;
	--ck-accent:     #0a0a0a;

	/* Typography */
	--ck-serif: "Fraunces", "Newsreader", Georgia, "Times New Roman", serif;
	--ck-sans:  "Inter Tight", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	--ck-mono:  "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

	/* Sizing — overridden by modifier classes */
	--ck-avatar-size: 88px;
	--ck-avatar-radius: 50%;

	position: relative;
	margin: 3rem 0;
	padding: 1.75rem 0;
	background: var(--ck-paper);
	border-top: 1px solid var(--ck-rule);
	border-bottom: 1px solid var(--ck-rule);
	font-family: var(--ck-sans);
	color: var(--ck-ink);
	line-height: 1.55;
	box-sizing: border-box;
}

.ck-abc *,
.ck-abc *::before,
.ck-abc *::after {
	box-sizing: border-box;
}

/* ---- Avatar shape ---- */
.ck-abc--avatar-round  { --ck-avatar-radius: 50%; }
.ck-abc--avatar-square { --ck-avatar-radius: 0; }

/* ---- Avatar size ---- */
.ck-abc--avatar-sm { --ck-avatar-size: 64px; }
.ck-abc--avatar-md { --ck-avatar-size: 88px; }
.ck-abc--avatar-lg { --ck-avatar-size: 112px; }

/* ---- Eyebrow ---- */
.ck-abc__eyebrow {
	font-family: var(--ck-mono);
	font-size: 10.5px;
	font-weight: 500;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--ck-muted);
	margin: 0 0 1.25rem;
	display: flex;
	align-items: center;
	gap: 0.75rem;
}
.ck-abc__eyebrow::after {
	content: "";
	flex: 1;
	height: 1px;
	background: var(--ck-rule-soft);
}

/* ---- Layout: HORIZONTAL (default) ---- */
.ck-abc__inner {
	display: grid;
	grid-template-columns: var(--ck-avatar-size) 1fr;
	gap: 1.5rem;
	align-items: start;
}

/* ---- Layout: VERTICAL ---- */
.ck-abc--vertical .ck-abc__inner {
	grid-template-columns: 1fr;
	justify-items: center;
	text-align: center;
	gap: 1.15rem;
}
.ck-abc--vertical .ck-abc__eyebrow {
	justify-content: center;
}
.ck-abc--vertical .ck-abc__eyebrow::before {
	content: "";
	flex: 1;
	height: 1px;
	background: var(--ck-rule-soft);
}
.ck-abc--vertical .ck-abc__body {
	width: 100%;
	max-width: 520px;
}
.ck-abc--vertical .ck-abc__description,
.ck-abc--vertical .ck-abc__panel {
	text-align: left;
}
.ck-abc--vertical .ck-abc__cite-toggle {
	margin: 0 auto;
}

/* ---- Avatar ---- */
.ck-abc__avatar {
	width: var(--ck-avatar-size);
	height: var(--ck-avatar-size);
	border-radius: var(--ck-avatar-radius);
	overflow: hidden;
	background: #ebebeb;
	display: flex;
	align-items: center;
	justify-content: center;
	box-shadow: inset 0 0 0 1px rgba(10, 10, 10, 0.06);
	flex-shrink: 0;
}
.ck-abc__avatar img,
.ck-abc__avatar-img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	border-radius: 0;
}
.ck-abc__avatar-fallback {
	font-family: var(--ck-serif);
	font-weight: 500;
	font-size: calc(var(--ck-avatar-size) * 0.34);
	color: #6e6e6e;
	letter-spacing: -0.02em;
	font-variation-settings: "opsz" 36;
	line-height: 1;
}

/* ---- Body ---- */
.ck-abc__body {
	min-width: 0;
}

.ck-abc__name {
	font-family: var(--ck-serif);
	font-size: 26px;
	font-weight: 500;
	line-height: 1.1;
	letter-spacing: -0.015em;
	margin: 0.1rem 0 0.3rem;
	color: var(--ck-ink);
	font-variation-settings: "opsz" 36;
}

.ck-abc__tagline {
	font-family: var(--ck-sans);
	font-size: 13px;
	font-weight: 500;
	letter-spacing: 0.005em;
	color: var(--ck-muted);
	margin: 0 0 0.85rem;
}

.ck-abc__description {
	font-family: var(--ck-serif);
	font-size: 15.5px;
	font-weight: 400;
	line-height: 1.62;
	color: var(--ck-text);
	margin: 0 0 1.1rem;
	font-variation-settings: "opsz" 14;
}
.ck-abc__description p { margin: 0 0 0.5rem; }
.ck-abc__description p:last-child { margin-bottom: 0; }

/* ---- Cite toggle ---- */
.ck-abc__cite-toggle {
	display: inline-flex;
	align-items: center;
	gap: 0.55rem;
	background: transparent;
	border: none;
	padding: 0.4rem 0;
	margin: 0;
	cursor: pointer;
	color: var(--ck-accent);
	font-family: var(--ck-mono);
	font-size: 10.5px;
	font-weight: 500;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	line-height: 1;
	position: relative;
	transition: color 0.18s ease;
}
.ck-abc__cite-toggle::before {
	content: "";
	position: absolute;
	left: 0;
	bottom: 0.25rem;
	height: 1px;
	width: 100%;
	background: var(--ck-ink);
	transform: scaleX(0);
	transform-origin: left;
	transition: transform 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.ck-abc__cite-toggle:hover::before,
.ck-abc__cite-toggle:focus-visible::before {
	transform: scaleX(1);
}
.ck-abc__cite-toggle:focus-visible {
	outline: none;
}
.ck-abc__cite-toggle-caret {
	width: 8px;
	height: 8px;
	transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.ck-abc__cite-toggle[aria-expanded="true"] .ck-abc__cite-toggle-caret {
	transform: rotate(180deg);
}

/* ---- Panel ---- */
.ck-abc__panel {
	margin-top: 1.1rem;
	animation: ck-abc-fade 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.ck-abc__panel[hidden] { display: none !important; }
@keyframes ck-abc-fade {
	from { opacity: 0; transform: translateY(-3px); }
	to   { opacity: 1; transform: translateY(0); }
}

.ck-abc__panel-label {
	font-family: var(--ck-mono);
	font-size: 10px;
	font-weight: 500;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--ck-muted);
	margin: 0 0 0.55rem;
}

/* ---- Citation card ---- */
.ck-abc__citation {
	position: relative;
	background: var(--ck-cite-bg);
	border-radius: 2px;
	padding: 0.95rem 3.5rem 0.95rem 1.05rem;
	border-left: 2px solid var(--ck-ink);
}
.ck-abc__citation-text {
	margin: 0;
	font-family: var(--ck-mono);
	font-size: 12.5px;
	font-weight: 400;
	color: var(--ck-ink-soft);
	line-height: 1.7;
	word-break: break-word;
	overflow-wrap: anywhere;
}

/* ---- Copy button ---- */
.ck-abc__copy {
	position: absolute;
	top: 0.55rem;
	right: 0.55rem;
	display: inline-flex;
	align-items: center;
	gap: 0.3rem;
	background: var(--ck-cite-btn);
	border: 1px solid #d4d4d4;
	border-radius: 3px;
	padding: 0.32rem 0.5rem;
	cursor: pointer;
	color: var(--ck-muted);
	font-family: var(--ck-mono);
	font-size: 10px;
	font-weight: 500;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	line-height: 1;
	transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.ck-abc__copy:hover,
.ck-abc__copy:focus-visible {
	color: var(--ck-ink);
	border-color: #0a0a0a;
	outline: none;
}
.ck-abc__copy-check {
	display: none;
	align-items: center;
}
.ck-abc__copy.is-copied {
	color: #0a0a0a;
	border-color: #0a0a0a;
	background: #ffffff;
}
.ck-abc__copy.is-copied .ck-abc__copy-icon { display: none; }
.ck-abc__copy.is-copied .ck-abc__copy-check { display: inline-flex; }

/* ---- Reformat link ---- */
.ck-abc__reformat {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	margin-top: 0.85rem;
	font-family: var(--ck-sans);
	font-size: 13px;
	font-weight: 500;
	color: var(--ck-muted);
	text-decoration: none;
	transition: color 0.15s ease;
}
.ck-abc__reformat-arrow {
	transition: transform 0.2s ease;
}
.ck-abc__reformat:hover,
.ck-abc__reformat:focus-visible {
	color: var(--ck-ink);
	outline: none;
}
.ck-abc__reformat:hover .ck-abc__reformat-arrow,
.ck-abc__reformat:focus-visible .ck-abc__reformat-arrow {
	transform: translateX(3px);
}

/* ---- Responsive ---- */
@media (max-width: 560px) {
	.ck-abc {
		padding: 1.4rem 0;
	}
	.ck-abc__inner {
		grid-template-columns: 1fr;
		justify-items: start;
		gap: 1rem;
	}
	.ck-abc--vertical .ck-abc__inner {
		justify-items: center;
	}
	.ck-abc--avatar-lg { --ck-avatar-size: 88px; }
	.ck-abc__name { font-size: 22px; }
	.ck-abc__citation { padding-right: 1.05rem; }
	.ck-abc__copy {
		position: static;
		margin-bottom: 0.6rem;
	}
	.ck-abc__citation {
		display: flex;
		flex-direction: column-reverse;
	}
}