/**
 * Phase 6 — skip link, subfooter, chat widget, newsletter, global polish.
 */

/* ——— Skip link ——— */
.nl-skip-link {
	position: absolute;
	left: -9999px;
	top: 0.75rem;
	z-index: 100000;
	padding: 0.65rem 1.1rem;
	font-weight: 600;
	font-size: 0.875rem;
	color: var(--nl-bg);
	background: var(--nl-cyan);
	border-radius: 8px;
	text-decoration: none;
	transition: left 0.2s ease, box-shadow 0.2s ease;
}

.nl-skip-link:focus {
	left: 0.75rem;
	outline: 2px solid var(--nl-violet);
	outline-offset: 2px;
	box-shadow: var(--nl-shadow-cyan);
}

/* ——— Focus visibility (site-wide baseline) ——— */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
	outline: 2px solid var(--nl-cyan);
	outline-offset: 2px;
}

/* ——— Interactive glow polish ——— */
.nl-glass {
	transition: border-color var(--nl-transition), box-shadow var(--nl-transition), transform var(--nl-transition);
}

a.nl-glass:hover,
button.nl-glass:hover,
.nl-archive-card.nl-glass:hover,
.nl-project-card.nl-glass:hover {
	box-shadow: 0 0 28px rgba(0, 245, 255, 0.08);
}

/* ——— Subfooter ——— */
.nl-subfooter {
	margin-top: 3rem;
	padding: 2.5rem 1.25rem 2rem;
	border-top: 1px solid var(--nl-glass-border);
	background: linear-gradient(180deg, transparent 0%, rgba(0, 245, 255, 0.03) 100%);
}

.nl-subfooter__inner {
	max-width: 1120px;
	margin: 0 auto;
	display: grid;
	gap: 1.75rem;
	text-align: center;
}

@media (min-width: 768px) {
	.nl-subfooter__inner {
		grid-template-columns: 1fr 1fr;
		text-align: start;
		align-items: start;
	}

	.nl-subfooter__newsletter {
		grid-column: 1 / -1;
		max-width: 32rem;
		margin-inline: auto;
		text-align: center;
	}
}

.nl-subfooter__nl-title {
	margin: 0 0 0.65rem;
	font-size: 0.85rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--nl-text-muted);
}

.nl-newsletter-form {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	justify-content: center;
	align-items: center;
}

.nl-newsletter-form input[type="email"] {
	flex: 1 1 220px;
	min-width: 0;
	max-width: 320px;
	padding: 0.55rem 0.85rem;
	border-radius: 999px;
	border: 1px solid var(--nl-glass-border);
	background: rgba(255, 255, 255, 0.06);
	color: var(--nl-text);
	font-family: inherit;
}

.nl-newsletter-form__btn {
	padding: 0.55rem 1.15rem;
	font-size: 0.875rem;
}

.nl-newsletter-form__msg {
	flex: 1 1 100%;
	margin: 0;
	font-size: 0.85rem;
	color: var(--nl-cyan);
}

.nl-newsletter-form__msg.is-error {
	color: #f87171;
}

.nl-subfooter__menu {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem 1rem;
	justify-content: center;
}

@media (min-width: 768px) {
	.nl-subfooter__menu {
		justify-content: flex-start;
	}
}

.nl-subfooter__menu a {
	color: var(--nl-text-muted);
	text-decoration: none;
	font-size: 0.875rem;
	font-weight: 500;
	transition: color var(--nl-transition);
}

.nl-subfooter__menu a:hover {
	color: var(--nl-cyan);
}

.nl-subfooter__social {
	display: flex;
	flex-wrap: wrap;
	gap: 0.65rem;
	justify-content: center;
}

@media (min-width: 768px) {
	.nl-subfooter__social {
		justify-content: flex-end;
		grid-column: 2;
		grid-row: 2;
	}
}

.nl-subfooter__social-link {
	font-size: 0.75rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--nl-text-muted);
	text-decoration: none;
	padding: 0.35rem 0.5rem;
	border-radius: 6px;
	border: 1px solid transparent;
	transition: color var(--nl-transition), border-color var(--nl-transition), box-shadow var(--nl-transition);
}

.nl-subfooter__social-link:hover {
	color: var(--nl-cyan);
	border-color: rgba(0, 245, 255, 0.35);
	box-shadow: 0 0 12px rgba(0, 245, 255, 0.12);
}

.nl-subfooter__legal {
	grid-column: 1 / -1;
	font-size: 0.8rem;
	color: var(--nl-text-muted);
}

.nl-subfooter__legal a {
	color: var(--nl-text-muted);
	text-decoration: none;
}

.nl-subfooter__legal a:hover {
	color: var(--nl-cyan);
}

.nl-subfooter__sep {
	margin: 0 0.35rem;
	opacity: 0.5;
}

.nl-subfooter__copy {
	margin: 0.65rem 0 0;
}

/* ——— Chat widget ——— */
.nl-chat {
	position: fixed;
	right: 1rem;
	bottom: 1rem;
	z-index: 100040;
	font-size: 0.9rem;
}

@media (min-width: 480px) {
	.nl-chat {
		right: 1.25rem;
		bottom: 1.25rem;
	}
}

.nl-chat__fab {
	display: inline-flex;
	align-items: center;
	gap: 0.45rem;
	padding: 0.65rem 1rem;
	border-radius: 999px;
	border: 1px solid rgba(0, 245, 255, 0.45);
	background: linear-gradient(135deg, rgba(0, 245, 255, 0.18), rgba(192, 38, 211, 0.15));
	color: var(--nl-text);
	font-family: inherit;
	font-weight: 700;
	font-size: 0.85rem;
	cursor: pointer;
	box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45), 0 0 24px rgba(0, 245, 255, 0.2);
	transition: transform var(--nl-transition), box-shadow var(--nl-transition);
}

.nl-chat__fab:hover {
	transform: translateY(-2px);
	box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5), 0 0 32px rgba(0, 245, 255, 0.28);
}

.nl-chat__fab-icon {
	font-size: 1.1rem;
	line-height: 1;
	filter: drop-shadow(0 0 6px rgba(0, 245, 255, 0.6));
}

.nl-chat[data-open="true"] .nl-chat__fab {
	opacity: 0.92;
}

.nl-chat__panel {
	position: absolute;
	right: 0;
	bottom: calc(100% + 0.75rem);
	width: min(100vw - 2rem, 380px);
	padding: 0;
	border-radius: var(--nl-radius);
	overflow: hidden;
	box-shadow: 0 16px 48px rgba(0, 0, 0, 0.55), 0 0 40px rgba(192, 38, 211, 0.12);
}

.nl-chat__head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 0.85rem 1rem;
	border-bottom: 1px solid var(--nl-glass-border);
	background: rgba(0, 0, 0, 0.25);
}

.nl-chat__title {
	margin: 0;
	font-size: 1rem;
	font-weight: 700;
}

.nl-chat__close {
	background: transparent;
	border: none;
	color: var(--nl-text-muted);
	font-size: 1.5rem;
	line-height: 1;
	cursor: pointer;
	padding: 0.15rem 0.35rem;
	border-radius: 6px;
}

.nl-chat__close:hover {
	color: var(--nl-cyan);
}

.nl-chat__body {
	padding: 1rem 1.1rem 1.15rem;
	max-height: min(70vh, 520px);
	overflow-y: auto;
}

.nl-chat__intro {
	margin: 0 0 1rem;
	color: var(--nl-text-muted);
	line-height: 1.55;
	font-size: 0.875rem;
}

.nl-chat__embed iframe {
	display: block;
	border: none;
	border-radius: 8px;
	background: var(--nl-bg-elevated);
}

.nl-chat__actions {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 0.65rem;
}

.nl-chat__hint {
	margin: 1rem 0 0;
	font-size: 0.75rem;
	color: var(--nl-text-muted);
	line-height: 1.45;
}

.nl-newsletter-shortcode__title {
	margin: 0 0 0.65rem;
	font-weight: 600;
	font-size: 0.95rem;
}