/* EWB Courses — archive (all-courses) page styles.
 * Conditionally loaded on is_post_type_archive('course').
 * All colours via CSS variables.
 */

/* Effect utilities (.glass, .aurora, .iridescent, .grain-overlay) are now in assets/css/effects.css */

/* ============================================================
   ARCHIVE HERO
   ============================================================ */

.archive-hero {
	position: relative;
	overflow: hidden;
	background: var(--navy-deep);
	padding-block: clamp(3rem, 8vw, 6rem);
	isolation: isolate;
}

.archive-hero__blob {
	position: absolute;
	top: -40px;
	right: -40px;
	width: clamp(180px, 26vw, 320px);
	height: auto;
	z-index: 1;
}

.archive-hero__inner {
	position: relative;
	z-index: 2;
	max-width: 760px;
}

.archive-hero__title {
	font-family: var(--font-display);
	font-weight: var(--fw-black);
	font-size: clamp(2.25rem, 5vw, 4rem);
	line-height: var(--lh-tight);
	margin: 0 0 var(--space-3);
}

.archive-hero__lede {
	font-size: clamp(1.05rem, 1.4vw, 1.25rem);
	color: var(--color-text-muted);
	max-width: 56ch;
	margin: 0 0 var(--space-4);
}

.archive-hero__trust {
	display: inline-flex;
	flex-wrap: wrap;
	gap: var(--space-3);
	font-size: var(--fs-small);
	color: var(--color-text-muted);
	margin: 0;
}

.archive-hero__trust strong { color: var(--white); font-weight: var(--fw-bold); }

/* ============================================================
   FILTER BAR
   ============================================================ */

.archive-filter {
	background: var(--navy-deep);
	border-block: 1px solid var(--color-border);
	padding-block: var(--space-4);
	position: sticky;
	top: var(--header-h);
	z-index: 5;
	-webkit-backdrop-filter: blur(8px);
	backdrop-filter: blur(8px);
}

.archive-filter__row {
	display: flex;
	gap: var(--space-2);
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
	scrollbar-width: thin;
	padding-bottom: var(--space-1);
}

.archive-filter__chip {
	flex: 0 0 auto;
	padding: 0.5rem 1rem;
	background: transparent;
	color: var(--color-text-muted);
	border: 1px solid var(--color-border-strong);
	border-radius: var(--radius-pill);
	font-family: var(--font-display);
	font-weight: var(--fw-semibold);
	font-size: var(--fs-small);
	cursor: pointer;
	transition: background var(--dur-fast) var(--ease),
		color var(--dur-fast) var(--ease),
		border-color var(--dur-fast) var(--ease);
}

.archive-filter__chip:hover {
	color: var(--white);
	border-color: var(--cyan);
}

.archive-filter__chip.is-active,
.archive-filter__chip[aria-pressed="true"] {
	background: var(--cyan);
	color: var(--navy-deep);
	border-color: var(--cyan);
}

/* ============================================================
   COURSES BENTO GRID
   ============================================================ */

.archive-grid-section { background: var(--navy-deep); }

.archive-grid {
	display: grid;
	gap: var(--space-5);
	grid-template-columns: 1fr;
	padding: 0;
}

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

@media (min-width: 1024px) {
	.archive-grid {
		grid-template-columns: repeat(6, 1fr);
		grid-auto-flow: dense;
	}
	.archive-tile           { grid-column: span 2; }
	.archive-tile--lg       { grid-column: span 3; }
}

.archive-tile {
	padding: var(--space-6);
	display: flex;
	flex-direction: column;
	gap: var(--space-3);
	transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.archive-tile.is-hidden {
	display: none !important;
}

.archive-tile__sub {
	color: var(--color-text-muted);
	font-size: var(--fs-small);
	margin: 0;
}

.archive-grid__empty {
	text-align: center;
	padding: var(--space-7) var(--space-4);
	color: var(--color-text-muted);
}

/* ============================================================
   TRUST STRIP
   ============================================================ */

.archive-trust__grid { margin-top: 0; }

/* ============================================================
   HOW TO ENROL
   ============================================================ */

.archive-enroll { background: var(--navy-deep); }

.archive-enroll__steps {
	display: grid;
	gap: var(--space-4);
	grid-template-columns: 1fr;
	margin: 0;
	padding: 0;
	counter-reset: archive-enroll;
}

@media (min-width: 768px) {
	.archive-enroll__steps { grid-template-columns: repeat(3, 1fr); }
}

.archive-enroll__step {
	padding: var(--space-6);
	position: relative;
}

.archive-enroll__num {
	font-family: var(--font-display);
	font-weight: var(--fw-black);
	font-size: 2rem;
	color: var(--cyan);
	display: block;
	line-height: 1;
	margin-bottom: var(--space-3);
}

.archive-enroll__steps > li:nth-child(2) .archive-enroll__num { color: var(--lime); }

.archive-enroll__title {
	margin: 0 0 var(--space-2);
	font-size: var(--fs-h4);
	color: var(--white);
}

.archive-enroll__step p {
	margin: 0;
	color: var(--color-text-muted);
}

/* ============================================================
   FINAL CTA (matches single course CTA section)
   ============================================================ */

.course-cta {
	position: relative;
	overflow: hidden;
	background: var(--navy-deep);
	padding-block: clamp(3rem, 8vw, 5rem);
	text-align: center;
	isolation: isolate;
}

.course-cta__blob {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: clamp(200px, 30vw, 320px);
	z-index: 1;
	opacity: 0.5;
}

.course-cta__inner {
	position: relative;
	z-index: 2;
	max-width: 720px;
	margin-inline: auto;
}

.course-cta__title {
	font-size: clamp(1.75rem, 4vw, 2.75rem);
	margin: 0 0 var(--space-3);
}

.course-cta__lede {
	color: var(--color-text-muted);
	margin: 0 0 var(--space-5);
	font-size: 1.0625rem;
}