.lt72-duk {
	--lt72-blue: #1a3b8f;
	--lt72-accent: #4a7fe6;
	--lt72-soft: #eef3fd;
	--lt72-line: #e4e7ee;
	--lt72-text: #333;
	--lt72-muted: #6b7280;
	color: var(--lt72-text);
	font-size: 16px;
	line-height: 1.6;
}
.lt72-duk *, .lt72-duk *::before, .lt72-duk *::after { box-sizing: border-box; }

/* Paieška */
.lt72-duk__hero { background: #f5f5f6; padding: 56px 16px; margin-bottom: 48px; }
.lt72-duk__title { text-align: center; color: var(--lt72-blue); margin: 0 0 24px; }
.lt72-duk__search {
	max-width: 1000px; margin: 0 auto; background: #fff; border-radius: 8px;
	padding: 22px 32px; display: flex; align-items: center; gap: 16px; color: #888;
	box-shadow: 0 4px 24px rgba(0, 0, 0, .04);
}
.lt72-duk__search input {
	flex: 1; border: 0; border-bottom: 1px solid #ccc; border-radius: 0; padding: 10px 0;
	font: inherit; font-size: 18px; font-weight: 600; color: var(--lt72-text); background: transparent; outline: none;
}
.lt72-duk__search input:focus { border-bottom-color: var(--lt72-accent); }

/* Dviejų stulpelių išdėstymas */
.lt72-duk__body {
	display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 48px;
	max-width: 1400px; margin: 0 auto; padding: 0 16px 64px; align-items: start;
}

/* Kairė juosta */
.lt72-duk__nav { position: sticky; top: 24px; }
.lt72-duk__group + .lt72-duk__group { margin-top: 28px; }
.lt72-duk__group-title {
	margin: 0 0 8px; padding: 0 14px; font-size: 13px; font-weight: 700;
	letter-spacing: .06em; text-transform: uppercase; color: var(--lt72-muted);
}
.lt72-duk__nav ul { list-style: none; margin: 0; padding: 0; }
.lt72-duk__nav li { margin: 0; }
.lt72-duk__nav a {
	display: flex; gap: 12px; align-items: center; justify-content: space-between;
	padding: 7px 12px; border-left: 3px solid transparent; border-radius: 0 6px 6px 0;
	color: var(--lt72-blue); text-decoration: none; font-weight: 500; line-height: 1.35;
}
.lt72-duk__nav a:hover { background: #f6f8fc; }
.lt72-duk__nav .lt72-duk__name { flex: 1; }
.lt72-duk__icon {
	flex: none; width: 36px; height: 36px; border-radius: 8px; background: #f1f4fa; color: var(--lt72-blue);
	display: inline-flex; align-items: center; justify-content: center;
}
.lt72-duk__icon svg { width: 20px; height: 20px; display: block; }
.lt72-duk__icon img { width: 22px; height: 22px; object-fit: contain; display: block; }
.lt72-duk__nav a.is-active .lt72-duk__icon { background: var(--lt72-accent); color: #fff; }
.lt72-duk__panel-title { display: flex; align-items: center; gap: 14px; }
.lt72-duk__icon--lg { width: 48px; height: 48px; border-radius: 10px; background: var(--lt72-soft); color: var(--lt72-accent); }
.lt72-duk__icon--lg svg { width: 26px; height: 26px; }
.lt72-duk__icon--lg img { width: 30px; height: 30px; }
.lt72-duk__nav a.is-active { background: var(--lt72-soft); border-left-color: var(--lt72-accent); font-weight: 700; }
.lt72-duk__nav em {
	font-style: normal; font-size: 13px; color: var(--lt72-muted); background: #f1f3f7;
	border-radius: 999px; padding: 1px 9px; flex: none;
}
.lt72-duk__nav a.is-active em { background: var(--lt72-accent); color: #fff; }
.lt72-duk__toggle { display: none; }

/* Dešinė pusė */
.lt72-duk__panel[hidden] { display: none; }
.lt72-duk__panel:not([hidden]) ~ .lt72-duk__panel:not([hidden]) { margin-top: 40px; }
.lt72-duk__panel-group { margin: 0; font-size: 14px; color: var(--lt72-muted); }
.lt72-duk__panel-title { margin: 2px 0 20px; color: var(--lt72-blue); font-size: 28px; line-height: 1.25; }

.lt72-duk__item { border: 1px solid var(--lt72-line); border-radius: 8px; background: #fff; margin-bottom: 12px; }
.lt72-duk__item[hidden] { display: none; }
.lt72-duk__item summary {
	list-style: none; cursor: pointer; display: flex; gap: 16px; align-items: center; justify-content: space-between;
	padding: 18px 22px; font-weight: 600; font-size: 17px; color: var(--lt72-text);
}
.lt72-duk__item summary::-webkit-details-marker { display: none; }
.lt72-duk__item summary:hover { color: var(--lt72-blue); }
.lt72-duk__item summary:focus-visible { outline: 2px solid var(--lt72-accent); outline-offset: 2px; border-radius: 8px; }
.lt72-duk__item summary i {
	flex: none; width: 28px; height: 28px; border-radius: 50%; background: var(--lt72-soft); position: relative;
}
.lt72-duk__item summary i::before, .lt72-duk__item summary i::after {
	content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 2px; background: var(--lt72-accent);
	transform: translate(-50%, -50%); transition: transform .2s;
}
.lt72-duk__item summary i::after { transform: translate(-50%, -50%) rotate(90deg); }
.lt72-duk__item[open] { border-color: #c9d7f5; box-shadow: 0 4px 18px rgba(26, 59, 143, .06); }
.lt72-duk__item[open] summary { color: var(--lt72-blue); }
.lt72-duk__item[open] summary i::after { transform: translate(-50%, -50%) rotate(0deg); }
.lt72-duk__answer { padding: 0 22px 20px; color: #444; }
.lt72-duk__answer p { margin: 0 0 12px; }
.lt72-duk__empty { color: var(--lt72-muted); }
.lt72-duk mark { background: #fff1b8; color: inherit; padding: 0 1px; }

/* Paieškos režimas: rodomos visos kategorijos su rezultatais */
.lt72-duk.is-searching .lt72-duk__nav a.is-active { background: none; border-left-color: transparent; font-weight: 500; }
.lt72-duk.is-searching .lt72-duk__nav a.is-active .lt72-duk__icon { background: #f1f4fa; color: var(--lt72-blue); }
.lt72-duk.is-searching .lt72-duk__nav a.is-active em { background: #f1f3f7; color: var(--lt72-muted); }

/* Mobilus */
@media (max-width: 900px) {
	.lt72-duk__body { grid-template-columns: 1fr; gap: 24px; }
	.lt72-duk__nav { position: relative; top: auto; }
	.lt72-duk .lt72-duk__toggle {
		display: flex; align-items: center; gap: 12px; width: 100%; margin: 0; padding: 10px 14px;
		background: #fff; color: var(--lt72-blue); border: 1px solid var(--lt72-line); border-radius: 8px;
		font: inherit; font-size: 16px; line-height: 1.3; text-align: left; text-transform: none; letter-spacing: 0;
		box-shadow: none; cursor: pointer; white-space: normal; min-height: 0;
	}
	.lt72-duk .lt72-duk__nav .lt72-duk__toggle {
		height: auto !important; min-height: 64px !important; padding: 14px 16px !important; line-height: 1.3 !important;
	}
	.lt72-duk__toggle-text small, .lt72-duk__toggle-text strong { display: block; line-height: 1.3; margin: 0; padding: 0; }
	.lt72-duk__toggle-text strong { margin-top: 2px; }
	.lt72-duk .lt72-duk__toggle:hover, .lt72-duk .lt72-duk__toggle:focus { background: #fff; color: var(--lt72-blue); }
	.lt72-duk .lt72-duk__toggle:focus-visible { outline: 2px solid var(--lt72-accent); outline-offset: 2px; }
	.lt72-duk__toggle-text { flex: 1; min-width: 0; display: flex; flex-direction: column; }
	.lt72-duk__toggle-text small { font-size: 12px; color: var(--lt72-muted); font-weight: 500; }
	.lt72-duk__toggle-text strong { font-weight: 700; overflow-wrap: anywhere; }
	.lt72-duk__toggle .lt72-duk__icon { background: var(--lt72-accent); color: #fff; }
	.lt72-duk__toggle i {
		flex: none; width: 10px; height: 10px; border-right: 2px solid var(--lt72-accent); border-bottom: 2px solid var(--lt72-accent);
		transform: rotate(45deg); margin: -4px 4px 0 0; transition: transform .2s;
	}
	.lt72-duk__nav.is-open .lt72-duk__toggle i { transform: rotate(-135deg); margin-top: 4px; }
	.lt72-duk__groups {
		display: none; position: absolute; left: 0; right: 0; top: calc(100% + 6px); z-index: 50;
		background: #fff; border: 1px solid var(--lt72-line); border-radius: 8px; padding: 12px 6px;
		box-shadow: 0 12px 32px rgba(0, 0, 0, .12); max-height: 70vh; overflow-y: auto;
	}
	.lt72-duk__nav.is-open .lt72-duk__groups { display: block; }
	.lt72-duk__group + .lt72-duk__group { margin-top: 16px; }
	.lt72-duk .lt72-duk__search input { font-size: 15px; }
	.lt72-duk__hero { padding: 32px 16px; margin-bottom: 24px; }
	.lt72-duk__search { padding: 14px 18px; }
	.lt72-duk__panel-title { font-size: 23px; }
	.lt72-duk__item summary { padding: 16px; font-size: 16px; }
	.lt72-duk__answer { padding: 0 16px 16px; }
}