/* =========================================================================
   Publications page — track legend, filter bar, and filtered states.

   The legend introduces the Discovering / Learning / Applying journey;
   each card doubles as a one-click track filter. The filter bar (year +
   track) sits below it, then the year-grouped grid. Hidden states for
   cards/sections use the [hidden] HTML attribute toggled from JS.
   ========================================================================= */

/* --- Track legend ------------------------------------------------------- */
.id30-archive__tracks {
	max-width: 1180px;
	margin: 0 auto clamp(48px, 6vw, 72px);
	padding: 0 24px;
}

.id30-archive__tracks-head {
	display: flex;
	flex-direction: column;
	gap: 10px;
	margin-bottom: clamp(24px, 3vw, 32px);
}

.id30-archive__tracks-eyebrow {
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.3em;
	text-transform: uppercase;
	color: var(--color-ember);
}

.id30-archive__tracks-title {
	font-family: var(--font-display, var(--font-body));
	font-size: clamp(1.5rem, 2.6vw, 2rem);
	line-height: 1.15;
	color: var(--color-ink);
	margin: 0;
}

.id30-archive__tracks-grid {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	grid-template-columns: 1fr;
	gap: 16px;
}

@media (min-width: 720px) {
	.id30-archive__tracks-grid {
		grid-template-columns: repeat(3, 1fr);
		gap: 20px;
	}
}

.id30-archive__track-card {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 12px;
	width: 100%;
	height: 100%;
	min-height: 100%;
	padding: 24px 22px;
	background-color: #fff;
	border: 1px solid var(--color-line);
	border-radius: 18px;
	color: var(--color-ink);
	text-align: left;
	cursor: pointer;
	font: inherit;
	transition: border-color 200ms, transform 200ms, box-shadow 200ms, background-color 200ms;
}

.id30-archive__track-card:hover {
	border-color: var(--color-ember);
	transform: translateY(-2px);
	box-shadow: 0 18px 40px -28px rgba(2, 71, 104, 0.35);
}

.id30-archive__track-card:focus-visible {
	outline: none;
	border-color: var(--color-ember);
	box-shadow: 0 0 0 3px rgba(226, 39, 1, 0.18);
}

.id30-archive__track-card.is-active {
	border-color: var(--color-ember);
	background-color: rgba(226, 39, 1, 0.04);
	box-shadow: 0 18px 40px -28px rgba(226, 39, 1, 0.45);
}

.id30-archive__track-tag {
	font-family: var(--font-mono);
	font-size: 13px;
	letter-spacing: 0.04em;
	color: var(--color-ember);
}

.id30-archive__track-copy {
	margin: 0;
	font-size: 14px;
	line-height: 1.55;
	color: var(--color-slate);
}

/* --- Filter bar --------------------------------------------------------- */
.id30-archive__filters {
	max-width: 1180px;
	margin: 0 auto clamp(40px, 5vw, 64px);
	padding: 0 24px;
	display: flex;
	flex-wrap: wrap;
	align-items: flex-end;
	gap: 20px 32px;
}

.id30-archive__filter {
	display: flex;
	flex-direction: column;
	gap: 8px;
	min-width: 180px;
}

.id30-archive__filter-label {
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.22em;
	text-transform: uppercase;
	color: var(--color-slate);
}

.id30-archive__filter-select {
	appearance: none;
	-webkit-appearance: none;
	font-family: var(--font-body);
	font-size: 14px;
	color: var(--color-ink);
	background-color: #fff;
	border: 1px solid var(--color-line);
	border-radius: 9999px;
	padding: 10px 40px 10px 18px;
	cursor: pointer;
	transition: border-color 150ms, box-shadow 150ms, transform 150ms;
	background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6' fill='none'><path d='M1 1l4 4 4-4' stroke='%23485668' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/></svg>");
	background-repeat: no-repeat;
	background-position: right 16px center;
}

.id30-archive__filter-select:hover {
	border-color: var(--color-ember);
}

.id30-archive__filter-select:focus-visible {
	outline: none;
	border-color: var(--color-ember);
	box-shadow: 0 0 0 3px rgba(226, 39, 1, 0.15);
}

.id30-archive__filter-reset {
	margin-left: auto;
	align-self: flex-end;
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.22em;
	text-transform: uppercase;
	color: var(--color-ember);
	background: none;
	border: 1px solid transparent;
	border-radius: 9999px;
	padding: 10px 18px;
	cursor: pointer;
	transition: border-color 150ms, background-color 150ms;
}

.id30-archive__filter-reset:hover {
	border-color: var(--color-ember);
}

.id30-archive__filter-reset:focus-visible {
	outline: none;
	border-color: var(--color-ember);
	box-shadow: 0 0 0 3px rgba(226, 39, 1, 0.15);
}

/* --- Filtered empty state ------------------------------------------------ */
.id30-archive__empty--filtered {
	font-family: var(--font-mono);
	font-size: 12px;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--color-slate);
	text-align: center;
	padding: 48px 0;
}

/* --- Mobile -------------------------------------------------------------- */
@media (max-width: 600px) {
	.id30-archive__filters {
		flex-direction: column;
		align-items: stretch;
		gap: 16px;
	}
	.id30-archive__filter {
		min-width: 0;
	}
	.id30-archive__filter-reset {
		margin-left: 0;
		align-self: flex-start;
	}
}