/*
 * Luminary — courses (archive + single).
 * Dark aesthetic matching landing. Card grid, sticky pricing,
 * unique gradient covers per data-cover, professor cards.
 */

/* ── Archive hero ─────────────────────────────────────── */
.courses-archive {
	max-width: 1280px;
	margin: 0 auto;
	padding: 160px 40px 96px;
	position: relative; z-index: 2;
}
.courses-hero {
	text-align: center;
	margin-bottom: 64px;
}
.courses-hero-title {
	font-family: 'Montserrat', sans-serif;
	font-size: clamp(36px, 5vw, 56px);
	line-height: 1.1; font-weight: 700;
	color: var(--ivory); letter-spacing: -0.02em;
	margin: 12px auto 16px;
	max-width: 860px;
}
.courses-hero-sub {
	font-size: 15px; line-height: 1.7;
	color: var(--ivory-muted);
	max-width: 620px; margin: 0 auto;
}

/* ── Filters ──────────────────────────────────────────── */
.courses-filters {
	display: flex; align-items: flex-start;
	gap: 24px;
	margin: 28px 0;
	flex-wrap: wrap;
}
.courses-filter-label {
	font-size: 10px; font-weight: 600; letter-spacing: 0.2em;
	text-transform: uppercase; color: var(--slate-warm);
	padding: 10px 0; min-width: 96px;
}
.courses-filter-pills {
	display: flex; flex-wrap: wrap;
	gap: 8px; flex: 1;
}
.courses-filter {
	font-size: 11px; font-weight: 500; letter-spacing: 0.14em;
	text-transform: uppercase; color: var(--slate-warm);
	padding: 9px 16px;
	border: 1px solid var(--panel-border);
	border-radius: 100px;
	text-decoration: none;
	transition: color 0.6s var(--silk-ease), border-color 0.6s var(--silk-ease), background 0.6s var(--silk-ease);
	white-space: nowrap;
}
.courses-filter:hover { color: var(--ivory); border-color: rgba(156, 163, 175, 0.22); }
.courses-filter.is-active {
	color: var(--base-deep); background: var(--ivory); border-color: var(--ivory);
}
.courses-filter-count { font-size: 10px; opacity: 0.7; margin-left: 4px; }

/* ── Grid ─────────────────────────────────────────────── */
.courses-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
	gap: 28px;
	margin-top: 56px;
}

/* ── Course card with unique gradient cover ──────────── */
.course-card {
	background: var(--panel-bg);
	border: 1px solid var(--panel-border);
	border-radius: 18px;
	overflow: hidden;
	transition: transform 0.6s var(--silk-ease), border-color 0.6s var(--silk-ease), background 0.6s var(--silk-ease);
	display: flex; flex-direction: column;
}
.course-card:hover {
	transform: translateY(-4px);
	border-color: rgba(156, 163, 175, 0.22);
	background: rgba(28, 33, 40, 0.7);
}
.course-card-link { display: flex; flex-direction: column; color: inherit; text-decoration: none; flex: 1; }
.course-card-visual {
	aspect-ratio: 16 / 10;
	overflow: hidden;
	position: relative;
}
.course-card-visual img {
	width: 100%; height: 100%; object-fit: cover;
	transition: transform 1.6s var(--silk-ease);
}
.course-card:hover .course-card-visual img { transform: scale(1.06); }

/* Gradient fallback covers — unique per card based on data-cover attribute */
.course-card[data-cover="1"] .course-card-visual::before,
.course-single[data-cover="1"] .course-hero::before { background: radial-gradient(circle at 25% 30%, #2a3550 0%, #1a2030 45%, #0F1115 100%); }
.course-card[data-cover="2"] .course-card-visual::before,
.course-single[data-cover="2"] .course-hero::before { background: radial-gradient(circle at 75% 30%, #2a4a40 0%, #1a2825 45%, #0F1115 100%); }
.course-card[data-cover="3"] .course-card-visual::before,
.course-single[data-cover="3"] .course-hero::before { background: radial-gradient(circle at 50% 70%, #3a2a4a 0%, #251a28 45%, #0F1115 100%); }
.course-card[data-cover="4"] .course-card-visual::before,
.course-single[data-cover="4"] .course-hero::before { background: radial-gradient(circle at 30% 60%, #4a3525 0%, #2a201a 45%, #0F1115 100%); }
.course-card[data-cover="5"] .course-card-visual::before,
.course-single[data-cover="5"] .course-hero::before { background: radial-gradient(circle at 70% 50%, #1f3d4a 0%, #18242c 45%, #0F1115 100%); }
.course-card[data-cover="6"] .course-card-visual::before,
.course-single[data-cover="6"] .course-hero::before { background: radial-gradient(circle at 50% 40%, #4a2a2e 0%, #281a1d 45%, #0F1115 100%); }

.course-card-visual::before {
	content: '';
	position: absolute; inset: 0;
	z-index: 0;
}
.course-card-visual::after {
	content: '';
	position: absolute; inset: 0;
	background:
		repeating-linear-gradient(90deg, transparent 0, transparent 39px, rgba(255,255,255,0.025) 40px),
		repeating-linear-gradient(0deg, transparent 0, transparent 39px, rgba(255,255,255,0.025) 40px);
	z-index: 1;
	pointer-events: none;
}
.course-card-visual img { position: relative; z-index: 2; }

.course-card-badges {
	position: absolute;
	top: 14px; left: 14px;
	display: flex; gap: 8px; flex-wrap: wrap;
	z-index: 3;
}
.course-badge {
	font-size: 9px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
	padding: 6px 12px;
	border-radius: 100px;
	border: 1px solid rgba(255, 255, 255, 0.1);
	background: rgba(15, 17, 21, 0.78);
	backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
	color: var(--ivory);
	text-decoration: none;
	transition: background 0.6s var(--silk-ease);
}
.course-badge-modality {
	color: var(--silver);
	background: rgba(176, 184, 196, 0.12);
	border-color: rgba(176, 184, 196, 0.18);
}
.course-badge:hover { background: rgba(15, 17, 21, 0.92); }

.course-card-body {
	padding: 24px 26px 26px;
	display: flex; flex-direction: column; flex: 1;
}
.course-card-title {
	font-family: 'Montserrat', sans-serif;
	font-size: 19px; line-height: 1.3; font-weight: 600;
	color: var(--ivory); letter-spacing: -0.005em;
	margin-bottom: 10px;
}
.course-card-subtitle {
	font-size: 13px; line-height: 1.6;
	color: var(--ivory-muted);
	margin-bottom: 16px;
	flex: 1;
}
.course-card-meta {
	display: flex; gap: 14px; flex-wrap: wrap;
	margin-bottom: 18px;
	padding-bottom: 18px;
	border-bottom: 1px solid var(--panel-border);
}
.course-card-metaitem {
	display: inline-flex; align-items: center; gap: 6px;
	font-size: 11px; letter-spacing: 0.05em;
	color: var(--slate-light);
}
.course-card-metaitem svg { opacity: 0.75; }
.course-card-footer {
	display: flex; align-items: flex-end; justify-content: space-between;
	gap: 12px;
}
.course-card-price-label {
	display: block;
	font-size: 9px; letter-spacing: 0.2em; text-transform: uppercase;
	color: var(--slate-warm); margin-bottom: 2px;
}
.course-card-price-value {
	font-family: 'Montserrat', sans-serif;
	font-size: 18px; font-weight: 700; color: var(--ivory);
	letter-spacing: -0.01em;
}
.course-card-cta {
	font-size: 10px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
	color: var(--ivory);
	transition: letter-spacing 0.6s var(--silk-ease);
}
.course-card:hover .course-card-cta { letter-spacing: 0.22em; }

/* ── Single course ────────────────────────────────────── */
.course-single { position: relative; z-index: 2; }
.course-hero {
	position: relative;
	min-height: 56vh;
	display: flex; align-items: flex-end;
	padding: 200px 40px 72px;
	overflow: hidden;
	background: var(--base-mid);
}
.course-hero::before {
	content: '';
	position: absolute; inset: 0;
	z-index: 0;
}
.course-hero-bg {
	position: absolute; inset: 0;
	background-position: center; background-size: cover;
	opacity: 0.28;
	filter: saturate(0.65) contrast(1.05);
	z-index: 1;
}
.course-hero::after {
	content: ''; position: absolute; inset: 0;
	background: linear-gradient(180deg, rgba(15, 17, 21, 0.4) 0%, rgba(15, 17, 21, 0.75) 60%, var(--base-deep) 100%);
	z-index: 2;
	pointer-events: none;
}
.course-hero-inner {
	position: relative; z-index: 3;
	max-width: 1180px; margin: 0 auto;
	width: 100%;
}
.course-hero-badges {
	display: flex; flex-wrap: wrap; gap: 8px;
	margin-bottom: 28px;
}
.course-hero-title {
	font-family: 'Montserrat', sans-serif;
	font-size: clamp(32px, 5vw, 56px);
	line-height: 1.05; font-weight: 700;
	color: var(--ivory); letter-spacing: -0.02em;
	margin: 0 0 16px;
	max-width: 900px;
}
.course-hero-sub {
	font-size: 17px; line-height: 1.6;
	color: var(--ivory-muted);
	max-width: 760px;
	margin: 0 0 28px;
}
.course-hero-meta {
	display: flex; flex-wrap: wrap;
	gap: 20px;
	font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
	color: var(--silver);
}
.course-hero-metaitem {
	display: inline-flex; align-items: center; gap: 8px;
}

/* ── Body grid: 2 col, sticky pricing on right ───────── */
.course-body {
	max-width: 1180px;
	margin: 0 auto;
	padding: 0 40px 96px;
	position: relative;
}
.course-body-grid {
	display: grid;
	grid-template-columns: 1fr 360px;
	gap: 64px;
	align-items: flex-start;
	padding-top: 64px;
}
.course-body-main { min-width: 0; }

.course-section { margin-bottom: 56px; }
.course-section-title {
	font-family: 'Montserrat', sans-serif;
	font-size: 24px; font-weight: 600;
	color: var(--ivory);
	letter-spacing: -0.01em;
	margin-bottom: 20px;
	padding-bottom: 14px;
	border-bottom: 1px solid var(--panel-border);
}
.course-section-content {
	font-size: 16px; line-height: 1.8;
	color: var(--ivory-muted);
}
.course-section-content p { margin-bottom: 18px; }

.course-check-list, .course-bullet-list {
	list-style: none; padding: 0; margin: 0;
}
.course-check-list li {
	display: flex; align-items: flex-start; gap: 12px;
	padding: 10px 0;
	font-size: 15px; line-height: 1.6;
	color: var(--ivory-muted);
}
.course-check-list li svg {
	flex-shrink: 0; color: var(--silver);
	margin-top: 4px;
}
.course-bullet-list li {
	padding: 10px 0 10px 20px;
	font-size: 15px; line-height: 1.6;
	color: var(--ivory-muted);
	position: relative;
}
.course-bullet-list li::before {
	content: '—';
	position: absolute; left: 0; top: 10px;
	color: var(--slate-warm);
}

.course-curriculum {
	list-style: none; padding: 0; margin: 0;
}
.course-curriculum li {
	display: flex; align-items: flex-start; gap: 16px;
	padding: 18px 0;
	border-bottom: 1px solid var(--panel-border);
}
.course-curriculum li:last-child { border-bottom: none; }
.course-curriculum-num {
	font-family: 'Montserrat', sans-serif;
	font-size: 14px; font-weight: 700;
	color: var(--silver);
	letter-spacing: 0.1em;
	flex-shrink: 0;
	width: 40px;
}
.course-curriculum-text {
	font-size: 15px; line-height: 1.55;
	color: var(--ivory-muted);
}

.course-professors {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 20px;
}
.course-professor {
	display: flex; gap: 14px; align-items: center;
	padding: 18px;
	border: 1px solid var(--panel-border);
	border-radius: 14px;
	background: var(--panel-bg);
}
.course-professor-avatar {
	width: 56px; height: 56px;
	border-radius: 50%;
	background: linear-gradient(135deg, var(--graphite) 0%, var(--graphite-soft) 100%);
	display: flex; align-items: center; justify-content: center;
	font-size: 16px; font-weight: 700;
	color: var(--ivory);
	flex-shrink: 0;
	overflow: hidden;
}
.course-professor-avatar img { width: 100%; height: 100%; object-fit: cover; }
.course-professor-name {
	font-size: 14px; font-weight: 600;
	color: var(--ivory);
}
.course-professor-role {
	font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
	color: var(--slate-warm);
	margin-top: 3px;
}

/* ── Sticky pricing card ──────────────────────────────── */
.course-body-aside {
	position: sticky;
	top: 100px;
	align-self: start;
}
.course-price-card {
	border: 1px solid var(--panel-border);
	border-radius: 18px;
	background: linear-gradient(180deg, rgba(28, 33, 40, 0.85) 0%, rgba(22, 26, 32, 0.95) 100%);
	overflow: hidden;
	backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
	box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.4);
}
.course-price-inner { padding: 28px 28px 32px; }
.course-price-row { margin-bottom: 24px; }
.course-price-label {
	font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
	color: var(--slate-warm); margin-bottom: 4px;
}
.course-price-original {
	display: inline-block;
	font-size: 14px; color: var(--slate-warm);
	text-decoration: line-through;
	margin-bottom: 6px;
}
.course-price-value {
	font-family: 'Montserrat', sans-serif;
	font-size: 36px; font-weight: 700;
	color: var(--ivory);
	letter-spacing: -0.02em;
	line-height: 1;
}
.course-price-installments {
	font-size: 12px; color: var(--ivory-muted);
	margin-top: 8px;
}
.course-enroll-btn {
	display: flex; align-items: center; justify-content: center;
	gap: 8px;
	width: 100%;
	padding: 16px 24px;
	background: var(--ivory);
	color: var(--base-deep);
	text-decoration: none;
	font-size: 12px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
	border-radius: 100px;
	transition: gap 0.4s var(--silk-ease), background 0.4s var(--silk-ease), transform 0.4s var(--silk-ease);
}
.course-enroll-btn:hover {
	gap: 14px;
	background: #fff;
	transform: translateY(-1px);
}
.course-price-details {
	margin: 24px 0 0;
	border-top: 1px solid var(--panel-border);
	padding-top: 20px;
}
.course-price-detail {
	display: flex; justify-content: space-between; align-items: flex-start;
	padding: 10px 0;
	gap: 16px;
	font-size: 13px;
}
.course-price-detail dt {
	color: var(--slate-warm);
	font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
	white-space: nowrap;
	flex-shrink: 0;
}
.course-price-detail dd {
	color: var(--ivory);
	text-align: right;
	margin: 0;
}
.course-price-detail-full {
	flex-direction: column; align-items: flex-start;
}
.course-price-detail-full dd { text-align: left; font-size: 12px; line-height: 1.5; color: var(--ivory-muted); margin-top: 4px; }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 980px) {
	.course-body-grid {
		grid-template-columns: 1fr;
		gap: 40px;
	}
	.course-body-aside {
		position: static;
		top: auto;
	}
	.course-price-card {
		max-width: 420px;
		margin: 0 auto;
	}
}
@media (max-width: 768px) {
	.courses-archive { padding: 120px 24px 80px; }
	.courses-filters { gap: 12px; }
	.courses-filter-label { min-width: 0; }
	.course-hero { padding: 140px 24px 56px; min-height: 50vh; }
	.course-body { padding: 0 24px 80px; }
	.course-body-grid { padding-top: 40px; }
	.course-section { margin-bottom: 40px; }
	.course-section-title { font-size: 21px; }
	.course-curriculum-num { width: 32px; font-size: 13px; }
}