/* ==========================================================================
   COMPONENTS — buttons, cards, badges, accordion, forms, tables, steps
   ========================================================================== */

/* ---- Buttons ------------------------------------------------------------ */

.nx-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--nx-space-2);
	padding: 0.875rem 1.75rem;
	min-height: 48px; /* touch target */
	border: 2px solid transparent;
	border-radius: var(--nx-radius);
	background: var(--nx-primary);
	color: var(--nx-white);
	font-family: inherit;
	font-size: var(--nx-text-sm);
	font-weight: var(--nx-weight-semibold);
	letter-spacing: var(--nx-tracking-wide);
	line-height: 1;
	text-align: center;
	text-decoration: none;
	cursor: pointer;
	transition:
		background-color var(--nx-dur-fast) var(--nx-ease),
		border-color var(--nx-dur-fast) var(--nx-ease),
		color var(--nx-dur-fast) var(--nx-ease),
		transform var(--nx-dur-fast) var(--nx-ease),
		box-shadow var(--nx-dur-fast) var(--nx-ease);
}

.nx-btn:hover {
	background: var(--nx-primary-hover);
	color: var(--nx-white);
	transform: translateY(-2px);
	box-shadow: var(--nx-shadow);
}

.nx-btn:active { transform: translateY(0); }

.nx-btn--accent { background: var(--nx-action); }
.nx-btn--accent:hover { background: var(--nx-action-hover); }

.nx-btn--outline {
	background: transparent;
	border-color: var(--nx-border-strong);
	color: var(--nx-primary);
}

.nx-btn--outline:hover {
	background: transparent;
	border-color: var(--nx-primary);
	color: var(--nx-primary);
}

.nx-btn--ghost {
	background: transparent;
	color: var(--nx-primary);
	padding-inline: var(--nx-space-3);
}

.nx-btn--ghost:hover {
	background: var(--nx-surface-alt);
	box-shadow: none;
	transform: none;
}

/* On dark sections */
.nx-section--invert .nx-btn--outline {
	border-color: rgba(255, 255, 255, 0.4);
	color: var(--nx-white);
}

.nx-section--invert .nx-btn--outline:hover {
	border-color: var(--nx-white);
	color: var(--nx-white);
}

.nx-btn--sm { padding: 0.625rem 1.125rem; min-height: 40px; font-size: var(--nx-text-xs); }
.nx-btn--lg { padding: 1.0625rem 2.25rem; min-height: 56px; font-size: var(--nx-text-base); }
.nx-btn--block { width: 100%; }

.nx-btn[aria-disabled="true"],
.nx-btn:disabled {
	opacity: 0.5;
	pointer-events: none;
}

.nx-btn-row {
	display: flex;
	flex-wrap: wrap;
	gap: var(--nx-space-3);
}

.nx-btn-row--center { justify-content: center; }

/* ---- Badges ------------------------------------------------------------- */

.nx-badge {
	display: inline-flex;
	align-items: center;
	gap: var(--nx-space-2);
	padding: 0.3125rem 0.75rem;
	border-radius: var(--nx-radius-full);
	background: var(--nx-surface-alt);
	color: var(--nx-text-muted);
	font-size: var(--nx-text-xs);
	font-weight: var(--nx-weight-semibold);
	letter-spacing: var(--nx-tracking-wide);
	line-height: 1.4;
}

.nx-badge--accent { background: rgba(0, 163, 224, 0.12); color: var(--nx-blue-600); }
.nx-badge--solid  { background: var(--nx-primary); color: var(--nx-white); }

.nx-badge--outline {
	background: transparent;
	border: 1px solid var(--nx-border-strong);
}

/* ---- Cards -------------------------------------------------------------- */

.nx-card {
	display: flex;
	flex-direction: column;
	padding: var(--nx-space-6);
	background: var(--nx-surface);
	border: 1px solid var(--nx-border);
	border-radius: var(--nx-radius-md);
	transition:
		transform var(--nx-dur) var(--nx-ease),
		box-shadow var(--nx-dur) var(--nx-ease),
		border-color var(--nx-dur) var(--nx-ease);
}

.nx-card:hover {
	transform: translateY(-4px);
	border-color: var(--nx-border-strong);
	box-shadow: var(--nx-shadow);
}

.nx-card__icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 52px;
	height: 52px;
	margin-bottom: var(--nx-space-4);
	border-radius: var(--nx-radius);
	background: var(--nx-primary);
	color: var(--nx-white);
	flex-shrink: 0;
}

.nx-card__icon svg { width: 26px; height: 26px; }

.nx-card__title {
	margin-bottom: var(--nx-space-2);
	font-size: var(--nx-text-lg);
	font-weight: var(--nx-weight-semibold);
	color: var(--nx-primary);
}

.nx-card__title--caps {
	font-size: var(--nx-text-sm);
	letter-spacing: var(--nx-tracking-caps);
	text-transform: uppercase;
}

.nx-card__text {
	margin: 0;
	color: var(--nx-text-muted);
	font-size: var(--nx-text-sm);
	line-height: var(--nx-leading-loose);
}

.nx-card__foot { margin-top: auto; padding-top: var(--nx-space-4); }

/* Stat / spec variant */
.nx-card--stat { text-align: center; align-items: center; }

.nx-card__stat {
	font-size: var(--nx-text-3xl);
	font-weight: var(--nx-weight-bold);
	color: var(--nx-primary);
	line-height: 1;
	margin-bottom: var(--nx-space-2);
}

.nx-card__stat-label {
	font-size: var(--nx-text-xs);
	font-weight: var(--nx-weight-semibold);
	letter-spacing: var(--nx-tracking-caps);
	text-transform: uppercase;
	color: var(--nx-text-subtle);
}

/* On dark sections */
.nx-section--invert .nx-card {
	background: rgba(255, 255, 255, 0.05);
	border-color: rgba(255, 255, 255, 0.14);
}

.nx-section--invert .nx-card:hover { border-color: rgba(255, 255, 255, 0.3); }
.nx-section--invert .nx-card__title,
.nx-section--invert .nx-card__stat { color: var(--nx-white); }
.nx-section--invert .nx-card__text { color: rgba(255, 255, 255, 0.75); }
.nx-section--invert .nx-card__icon { background: var(--nx-action); }

/* ---- Trust strip -------------------------------------------------------- */

.nx-trust {
	display: grid;
	gap: var(--nx-space-4);
	grid-template-columns: repeat(auto-fit, minmax(min(150px, 100%), 1fr));
	padding: var(--nx-space-5);
	background: var(--nx-surface);
	border: 1px solid var(--nx-border);
	border-radius: var(--nx-radius-md);
	box-shadow: var(--nx-shadow-sm);
}

.nx-trust__item { text-align: center; }

.nx-trust__value {
	display: block;
	font-size: var(--nx-text-xl);
	font-weight: var(--nx-weight-bold);
	color: var(--nx-primary);
	line-height: 1.1;
}

.nx-trust__label {
	display: block;
	margin-top: var(--nx-space-1);
	font-size: var(--nx-text-xs);
	color: var(--nx-text-subtle);
	letter-spacing: var(--nx-tracking-wide);
}

@media (min-width: 640px) {
	.nx-trust__item + .nx-trust__item {
		border-left: 1px solid var(--nx-border);
	}
}

/* ---- Steps / process ---------------------------------------------------- */

.nx-steps {
	display: grid;
	gap: var(--nx-space-5);
	grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
	counter-reset: nx-step;
}

.nx-step {
	position: relative;
	padding-top: var(--nx-space-6);
	border-top: 3px solid var(--nx-border);
	transition: border-color var(--nx-dur) var(--nx-ease);
}

.nx-step:hover { border-top-color: var(--nx-action); }

.nx-step__num {
	display: block;
	margin-bottom: var(--nx-space-3);
	font-family: var(--nx-font-mono);
	font-size: var(--nx-text-sm);
	font-weight: var(--nx-weight-bold);
	letter-spacing: var(--nx-tracking-caps);
	color: var(--nx-action);
}

.nx-step__title {
	margin-bottom: var(--nx-space-2);
	font-size: var(--nx-text-lg);
	font-weight: var(--nx-weight-semibold);
	color: var(--nx-primary);
}

.nx-step__text {
	margin: 0;
	color: var(--nx-text-muted);
	font-size: var(--nx-text-sm);
	line-height: var(--nx-leading-loose);
}

/* ---- Accordion (native details/summary — keyboard accessible free) ------ */

.nx-accordion {
	border-top: 1px solid var(--nx-border);
	max-width: 900px;
}

.nx-accordion__item { border-bottom: 1px solid var(--nx-border); }

.nx-accordion__trigger {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: var(--nx-space-4);
	width: 100%;
	padding: var(--nx-space-5) 0;
	background: none;
	border: 0;
	color: var(--nx-primary);
	font-family: inherit;
	font-size: var(--nx-text-lg);
	font-weight: var(--nx-weight-semibold);
	line-height: var(--nx-leading-snug);
	text-align: left;
	cursor: pointer;
	list-style: none;
	transition: color var(--nx-dur-fast) var(--nx-ease);
}

.nx-accordion__trigger::-webkit-details-marker { display: none; }
.nx-accordion__trigger:hover { color: var(--nx-action); }

.nx-accordion__icon {
	flex-shrink: 0;
	width: 22px;
	height: 22px;
	margin-top: 3px;
	position: relative;
}

.nx-accordion__icon::before,
.nx-accordion__icon::after {
	content: "";
	position: absolute;
	inset: 50% 0 auto 0;
	height: 2px;
	background: currentColor;
	border-radius: 2px;
	transition: transform var(--nx-dur) var(--nx-ease);
}

.nx-accordion__icon::after { transform: rotate(90deg); }

.nx-accordion__item[open] .nx-accordion__icon::after { transform: rotate(0deg); }

.nx-accordion__panel {
	padding-bottom: var(--nx-space-5);
	max-width: 72ch;
	color: var(--nx-text-muted);
	line-height: var(--nx-leading-loose);
}

.nx-accordion__item[open] .nx-accordion__panel {
	animation: nx-accordion-in var(--nx-dur) var(--nx-ease-out);
}

@keyframes nx-accordion-in {
	from { opacity: 0; transform: translateY(-6px); }
	to   { opacity: 1; transform: none; }
}

/* ---- Spec table --------------------------------------------------------- */

.nx-table-wrap {
	overflow-x: auto;
	border: 1px solid var(--nx-border);
	border-radius: var(--nx-radius-md);
	-webkit-overflow-scrolling: touch;
}

.nx-table {
	width: 100%;
	min-width: 480px;
	border-collapse: collapse;
	font-size: var(--nx-text-sm);
}

.nx-table th,
.nx-table td {
	padding: var(--nx-space-4) var(--nx-space-5);
	text-align: left;
	border-bottom: 1px solid var(--nx-border);
}

.nx-table thead th {
	background: var(--nx-surface-alt);
	color: var(--nx-primary);
	font-size: var(--nx-text-xs);
	font-weight: var(--nx-weight-semibold);
	letter-spacing: var(--nx-tracking-caps);
	text-transform: uppercase;
}

.nx-table tbody th {
	width: 40%;
	color: var(--nx-text-muted);
	font-weight: var(--nx-weight-medium);
}

.nx-table tbody td { color: var(--nx-primary); font-weight: var(--nx-weight-semibold); }
.nx-table tbody tr:last-child th,
.nx-table tbody tr:last-child td { border-bottom: 0; }
.nx-table tbody tr:hover { background: var(--nx-grey-50); }

/* ---- Forms -------------------------------------------------------------- */

.nx-form { display: grid; gap: var(--nx-space-5); }

.nx-form__row {
	display: grid;
	gap: var(--nx-space-5);
	grid-template-columns: 1fr;
}

@media (min-width: 640px) {
	.nx-form__row--2 { grid-template-columns: 1fr 1fr; }
}

.nx-field { display: flex; flex-direction: column; gap: var(--nx-space-2); }

.nx-field__label {
	font-size: var(--nx-text-sm);
	font-weight: var(--nx-weight-semibold);
	color: var(--nx-primary);
}

.nx-field__req { color: var(--nx-action); }

.nx-field__hint {
	font-size: var(--nx-text-xs);
	color: var(--nx-text-subtle);
}

.nx-input,
.nx-select,
.nx-textarea {
	width: 100%;
	padding: 0.8125rem 1rem;
	min-height: 48px;
	background: var(--nx-surface);
	border: 1px solid var(--nx-border-strong);
	border-radius: var(--nx-radius);
	color: var(--nx-text);
	font-family: inherit;
	font-size: var(--nx-text-base);
	line-height: 1.4;
	transition:
		border-color var(--nx-dur-fast) var(--nx-ease),
		box-shadow var(--nx-dur-fast) var(--nx-ease);
}

.nx-input:hover,
.nx-select:hover,
.nx-textarea:hover { border-color: var(--nx-grey-500); }

.nx-input:focus,
.nx-select:focus,
.nx-textarea:focus {
	outline: none;
	border-color: var(--nx-action);
	box-shadow: 0 0 0 3px rgba(0, 163, 224, 0.18);
}

.nx-textarea { min-height: 148px; resize: vertical; }

.nx-select {
	appearance: none;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='%2346566E' d='M1.4 0 6 4.6 10.6 0 12 1.4 6 7.4 0 1.4z'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 1rem center;
	background-size: 12px;
	padding-right: 2.75rem;
}

.nx-input::placeholder,
.nx-textarea::placeholder { color: var(--nx-text-subtle); }

/* ---- Media frame -------------------------------------------------------- */

.nx-media {
	position: relative;
	border-radius: var(--nx-radius-lg);
	overflow: hidden;
	background: var(--nx-surface-alt);
}

.nx-media img { width: 100%; height: auto; }

.nx-media--shadow { box-shadow: var(--nx-shadow-lg); }

.nx-media--ratio {
	aspect-ratio: 4 / 5;
}

.nx-media--ratio img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

/* Placeholder box for unfilled media slots.
   Styled as a product stage rather than an empty rectangle, so layout can be
   judged before real imagery exists. */
.nx-media__placeholder {
	position: relative;
	display: flex;
	align-items: center;
	justify-content: center;
	aspect-ratio: 4 / 5;
	min-height: 320px;
	padding: var(--nx-space-6);
	border: 1px solid var(--nx-border);
	border-radius: var(--nx-radius-lg);
	background:
		linear-gradient(160deg, rgba(11, 42, 91, 0.05) 0%, rgba(0, 163, 224, 0.06) 100%),
		var(--nx-white);
	box-shadow: var(--nx-shadow-sm);
	color: var(--nx-text-subtle);
	font-family: var(--nx-font-mono);
	font-size: var(--nx-text-xs);
	letter-spacing: var(--nx-tracking-wide);
	text-align: center;
	overflow: hidden;
}

/* Crosshair guides — reads as a design comp, not a broken image */
.nx-media__placeholder::before {
	content: "";
	position: absolute;
	inset: var(--nx-space-5);
	border: 1px dashed var(--nx-border-strong);
	border-radius: var(--nx-radius);
	opacity: 0.6;
}

.nx-media__placeholder::after {
	content: "";
	position: absolute;
	inset: 0;
	background-image:
		linear-gradient(rgba(11, 42, 91, 0.04) 1px, transparent 1px),
		linear-gradient(90deg, rgba(11, 42, 91, 0.04) 1px, transparent 1px);
	background-size: 32px 32px;
	pointer-events: none;
}

.nx-media__placeholder > * { position: relative; z-index: 1; }