/* ── ukdtc/hub-subnav ───────────────────────────────────── */

.ukdtc-subnav {
	background: var(--ukdtc-medium-purple);
	position: sticky;
	top: 0;
	z-index: 100;
	box-shadow: 0 2px 16px rgba(40, 4, 71, 0.3);
	width: 100%;
}

.ukdtc-subnav__inner {
	max-width: var(--ukdtc-max);
	margin-inline: auto;
	padding-inline: var(--ukdtc-pad);
	display: flex;
	align-items: stretch;
	position: relative;
}

/* Tab list — horizontal & scrollable on desktop, dropdown on mobile. */
.ukdtc-subnav__tabs {
	display: flex;
	align-items: stretch;
	overflow-x: auto;
	scrollbar-width: none;
	flex: 1 1 auto;
}
.ukdtc-subnav__tabs::-webkit-scrollbar {
	display: none;
}

/*
 * Mobile toggle — hidden on desktop, full-width row on mobile.
 * Full reset because the host theme may style bare <button> elements.
 */
.ukdtc-subnav__toggle {
	display: none;
	appearance: none;
	-webkit-appearance: none;
	background: none;
	border: 0;
	border-radius: 0;
	margin: 0;
	padding: 0;
	font: inherit;
	color: inherit;
	text-align: left;
	box-shadow: none;
	cursor: pointer;
}
.ukdtc-subnav__toggle:hover,
.ukdtc-subnav__toggle:focus,
.ukdtc-subnav__toggle:active {
	background: none;
	box-shadow: none;
	outline: none;
}

.ukdtc-subnav__tab {
	display: flex;
	flex-direction: column;
	justify-content: center;
	padding: 14px 22px;
	font-family: var(--ukdtc-poppins);
	font-size: 0.875rem;
	font-weight: 500;
	color: rgba(255, 255, 255, 0.55);
	text-decoration: none;
	border-bottom: 3px solid transparent;
	white-space: nowrap;
	background: none;
	margin-bottom: -1px;
	transition: color 0.15s, border-color 0.15s;
}

.ukdtc-subnav__tab:hover,
.ukdtc-subnav__tab:focus-visible,
.ukdtc-subnav__tab.active {
	color: var(--ukdtc-aqua);
	border-bottom-color: var(--ukdtc-aqua);
	text-decoration: none;
}

.ukdtc-subnav__tab-num {
	display: block;
	font-size: 0.75rem;
	font-weight: 400;
	letter-spacing: 0.07em;
	color: rgba(255, 255, 255, 0.28);
	text-transform: uppercase;
	line-height: 1;
	margin-bottom: 2px;
}

.ukdtc-subnav__tab:hover .ukdtc-subnav__tab-num,
.ukdtc-subnav__tab:focus-visible .ukdtc-subnav__tab-num,
.ukdtc-subnav__tab.active .ukdtc-subnav__tab-num {
	color: rgba(0, 210, 210, 0.5);
}

.ukdtc-subnav__trail {
	margin-left: auto;
	display: flex;
	align-items: center;
	padding: 0 0 0 20px;
	border-left: 1px solid rgba(255, 255, 255, 0.12);
	font-family: var(--ukdtc-poppins);
	font-size: 0.8125rem;
	color: rgba(255, 255, 255, 0.35);
	white-space: nowrap;
	letter-spacing: 0.03em;
}

/* ── Style: Light ─────────────────────────────────────────────
 * White background, black 12px labels, tab number inline with the
 * label at the same size. Selected via the editor's Styles panel
 * (adds `is-style-light` to the block wrapper).
 */
.ukdtc-subnav.is-style-light {
	background: #ffffff;
	box-shadow: 0 2px 16px rgba(40, 4, 71, 0.1);
}

.ukdtc-subnav.is-style-light .ukdtc-subnav__tab {
	flex-direction: row;
	align-items: center;
	gap: 6px;
	font-size: 12px;
	color: #000000;
}

.ukdtc-subnav.is-style-light .ukdtc-subnav__tab:hover,
.ukdtc-subnav.is-style-light .ukdtc-subnav__tab:focus-visible,
.ukdtc-subnav.is-style-light .ukdtc-subnav__tab.active {
	color: #000000;
	border-bottom-color: var(--ukdtc-aqua);
}

.ukdtc-subnav.is-style-light .ukdtc-subnav__tab-num {
	display: inline;
	font-size: inherit;
	line-height: inherit;
	margin-bottom: 0;
	color: #000000;
}

.ukdtc-subnav.is-style-light .ukdtc-subnav__tab:hover .ukdtc-subnav__tab-num,
.ukdtc-subnav.is-style-light .ukdtc-subnav__tab:focus-visible .ukdtc-subnav__tab-num,
.ukdtc-subnav.is-style-light .ukdtc-subnav__tab.active .ukdtc-subnav__tab-num {
	color: #000000;
}

.ukdtc-subnav.is-style-light .ukdtc-subnav__trail {
	display: none;
}

.ukdtc-subnav.is-style-light .ukdtc-subnav__toggle {
	color: #000000;
	font-size: 12px;
}

.ukdtc-subnav.is-style-light .ukdtc-subnav__tabs {
	background: #ffffff;
	border-top-color: rgba(0, 0, 0, 0.08);
}

@media (max-width: 939px) {
	.ukdtc-subnav.is-style-light .ukdtc-subnav__tab {
		border-bottom: 1px solid rgba(0, 0, 0, 0.06);
	}
	.ukdtc-subnav.is-style-light .ukdtc-subnav__tab:hover,
	.ukdtc-subnav.is-style-light .ukdtc-subnav__tab:focus-visible,
	.ukdtc-subnav.is-style-light .ukdtc-subnav__tab.active {
		border-bottom-color: rgba(0, 0, 0, 0.06);
		background: rgba(0, 210, 210, 0.1);
	}
}

/* ── Mobile (collapsing nav) ──────────────────────────────── */
@media (max-width: 939px) {
	.ukdtc-subnav__inner {
		flex-direction: column;
		align-items: stretch;
		padding-inline: 0;
	}

	.ukdtc-subnav__toggle {
		display: flex;
		align-items: center;
		justify-content: space-between;
		gap: 12px;
		width: 100%;
		height: 52px;
		padding-inline: var(--ukdtc-pad);
		background: none;
		border: 0;
		color: #ffffff;
		font-family: var(--ukdtc-poppins);
		font-size: 1rem;
		font-weight: 500;
		text-align: left;
		cursor: pointer;
	}
	.ukdtc-subnav__toggle:focus-visible {
		outline: 2px solid var(--ukdtc-aqua);
		outline-offset: -2px;
	}
	.ukdtc-subnav__toggle-icon,
	.ukdtc-subnav__toggle-icon::before,
	.ukdtc-subnav__toggle-icon::after,
	.ukdtc-subnav__toggle-icon-bar {
		box-sizing: border-box;
	}
	.ukdtc-subnav__toggle-icon {
		display: inline-block;
		position: relative;
		width: 22px;
		height: 16px;
		flex-shrink: 0;
	}
	.ukdtc-subnav__toggle-icon::before,
	.ukdtc-subnav__toggle-icon::after,
	.ukdtc-subnav__toggle-icon-bar {
		content: '';
		position: absolute;
		left: 0;
		right: 0;
		height: 2px;
		background: currentColor;
		border-radius: 1px;
		transition: transform 0.2s ease, opacity 0.15s ease, top 0.2s ease, bottom 0.2s ease;
	}
	.ukdtc-subnav__toggle-icon::before { top: 0; }
	.ukdtc-subnav__toggle-icon-bar    { top: 50%; transform: translateY(-50%); }
	.ukdtc-subnav__toggle-icon::after { bottom: 0; }

	/* Hamburger → X */
	.ukdtc-subnav__toggle[aria-expanded="true"] .ukdtc-subnav__toggle-icon::before {
		top: 50%;
		transform: translateY(-50%) rotate(45deg);
	}
	.ukdtc-subnav__toggle[aria-expanded="true"] .ukdtc-subnav__toggle-icon-bar {
		opacity: 0;
	}
	.ukdtc-subnav__toggle[aria-expanded="true"] .ukdtc-subnav__toggle-icon::after {
		bottom: 50%;
		transform: translateY(50%) rotate(-45deg);
	}

	.ukdtc-subnav__tabs {
		flex-direction: column;
		overflow: hidden;
		max-height: 0;
		transition: max-height 0.22s ease;
		background: var(--ukdtc-medium-purple);
		border-top: 1px solid rgba(255, 255, 255, 0.08);
	}
	.ukdtc-subnav__toggle[aria-expanded="true"] + .ukdtc-subnav__tabs {
		max-height: 80vh;
		overflow-y: auto;
	}

	.ukdtc-subnav__tab {
		height: auto;
		padding: 14px var(--ukdtc-pad);
		border-bottom: 1px solid rgba(255, 255, 255, 0.06);
		margin-bottom: 0;
	}
	.ukdtc-subnav__tab:hover,
	.ukdtc-subnav__tab:focus-visible,
	.ukdtc-subnav__tab.active {
		border-bottom-color: rgba(255, 255, 255, 0.06);
		background: rgba(0, 210, 210, 0.06);
	}

	/* The "trail" label is redundant on mobile — the toggle already shows it. */
	.ukdtc-subnav__trail {
		display: none;
	}
}