/* ─── PAGE HEADER ─── */
.page-header {
	padding: 130px 60px 60px;
	position: relative;
	z-index: 1;
	overflow: hidden;
}

.page-header-orb {
	position: absolute;
	border-radius: 50%;
	filter: blur(100px);
	pointer-events: none;
	width: 500px;
	height: 400px;
	background: radial-gradient(circle, rgba(0, 229, 255, 0.1), transparent 70%);
	top: -100px;
	right: -100px;
}

.page-header-inner {
	max-width: 1200px;
	margin: 0 auto;
	position: relative;
	z-index: 2;
}

.page-breadcrumb {
	display: flex;
	align-items: center;
	gap: 8px;
	font-family: 'Space Mono', monospace;
	font-size: 0.7rem;
	color: var(--text-muted);
	letter-spacing: 0.1em;
	margin-bottom: 24px;
}

.page-breadcrumb a {
	color: var(--accent);
	text-decoration: none;
}

.page-breadcrumb span {
	opacity: 0.5;
}

.page-header-tag {
	font-family: 'Space Mono', monospace;
	font-size: .7rem;
	color: var(--accent);
	letter-spacing: .2em;
	text-transform: uppercase;
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 16px;
}

.page-header-tag::before {
	content: '';
	width: 30px;
	height: 1px;
	background: var(--accent);
}

.page-header h1 {
	font-family: 'Syne', sans-serif;
	font-weight: 800;
	font-size: clamp(2.4rem, 5vw, 4rem);
	letter-spacing: -.04em;
	line-height: 1;
	color: var(--text);
	margin-bottom: 16px;
}

.page-header p {
	color: var(--text-muted);
	font-size: 1.05rem;
	max-width: 500px;
	line-height: 1.7;
	font-weight: 300;
}

/* ─── COURSES MAIN ─── */
.courses-main {
	position: relative;
	z-index: 1;
	max-width: 1200px;
	margin: 0 auto;
	padding: 60px 60px 100px;
}

.courses-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 24px;
}

/* ─── COURSE CARD ─── */
.course-card {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 20px;
	overflow: hidden;
	transition: all .4s;
	display: flex;
	flex-direction: column;
}

.course-card:hover {
	transform: translateY(-6px);
	border-color: rgba(0, 229, 255, .3);
	box-shadow: 0 20px 60px var(--shadow);
}

.course-thumb {
	width: 100%;
	height: 200px;
	display: flex;
	align-items: center;
	justify-content: center;
	position: relative;
	overflow: hidden;
}

.course-thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	transition: transform .4s ease;
}

.course-card:hover .course-thumb img {
	transform: scale(1.04);
}

.course-body {
	padding: 24px;
	flex: 1;
	display: flex;
	flex-direction: column;
	gap: 10px;
}

.course-title {
	font-family: 'Syne', sans-serif;
	font-weight: 700;
	font-size: 1.05rem;
	letter-spacing: -.01em;
	line-height: 1.3;
	color: var(--text);
}

.course-mentor {
	font-size: .82rem;
	color: var(--accent2);
	font-weight: 500;
}

.course-desc {
	color: var(--text-muted);
	font-size: .85rem;
	line-height: 1.6;
	font-weight: 300;
	flex: 1;
}

.course-footer {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-top: 16px;
	padding-top: 16px;
	border-top: 1px solid var(--border);
	gap: 8px;
	flex-wrap: wrap;
}

.course-meta {
	display: flex;
	align-items: center;
	gap: 12px;
	flex-wrap: wrap;
}

.course-meta-item {
	display: flex;
	align-items: center;
	gap: 5px;
	font-size: .78rem;
	color: var(--text-muted);
}

.course-meta-item svg {
	opacity: .5;
}

.btn-course {
	padding: 8px 18px;
	background: transparent;
	border: 1px solid var(--accent);
	color: var(--accent);
	border-radius: 8px;
	font-family: 'Syne', sans-serif;
	font-weight: 600;
	font-size: .78rem;
	cursor: pointer;
	text-decoration: none;
	transition: all .25s;
	letter-spacing: .02em;
	white-space: nowrap;
}

.btn-course:hover {
	background: rgba(0, 229, 255, .08);
	transform: translateY(-1px);
}

/* ─── EMPTY STATE ─── */
.empty-state {
	grid-column: 1 / -1;
	text-align: center;
	padding: 80px 40px;
}

.empty-icon {
	font-size: 3rem;
	margin-bottom: 16px;
	opacity: 0.5;
}

.empty-title {
	font-family: 'Syne', sans-serif;
	font-weight: 700;
	font-size: 1.5rem;
	color: var(--text);
	margin-bottom: 10px;
}

.empty-desc {
	color: var(--text-muted);
	font-size: 0.9rem;
}

/* ─── RESPONSIVE ─── */
@media(max-width:900px) {
	.page-header {
		padding: 110px 24px 50px;
	}

	.filter-bar {
		padding: 16px 24px;
	}

	.courses-main {
		padding: 40px 24px 70px;
	}

	.courses-grid {
		grid-template-columns: 1fr 1fr;
	}
}

@media(max-width:600px) {
	.courses-grid {
		grid-template-columns: 1fr;
	}
}