/* ====================================================
   ELLLO Index Page — Redesigned Layout
   styles-index.css
   ==================================================== */

:root {
	--elllo-blue: #1565C0;
	--text-dark: #222;
	--text-muted: #555;
	--border-light: #ddd;
	--bg-page: #fff;
	--gap: 24px;
	--card-radius: 6px;
}

* { box-sizing: border-box; }

body {
	margin: 0;
	font-family: Arial, Helvetica, sans-serif;
	color: var(--text-dark);
	background: var(--bg-page);
}

a { color: var(--elllo-blue); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

/* ---------- Header ---------- */

.site-header {
	background: #1a2a4a;
	padding: 6px;
}

.header-wordmark {
	background: #000;
	padding: 12px 16px 10px;
	text-align: center;
	line-height: 1;
}

.header-wordmark h1 {
	margin: 0;
	font-size: clamp(1.6rem, 4vw, 3rem);
	font-weight: 900;
	letter-spacing: .01em;
	white-space: nowrap;
}

.header-wordmark h1 .w1 { color: #cef097; }
.header-wordmark h1 .w2 { color: #3dd6eb; }
.header-wordmark h1 .w3 { color: #f87171; }
.header-wordmark h1 .w4 { color: #eba9e7; }
.header-wordmark h1 .w5 { color: #fde68a; }

/* Level panels row */
.header-levels {
	display: grid;
	grid-template-columns: repeat(5, 1fr);
	gap: 0;
}

.level-panel {
	position: relative;
	overflow: hidden;
	aspect-ratio: 4 / 3;
	display: flex;
	align-items: flex-end;
}

.level-panel img {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: top center;
}

.level-badge {
	position: absolute;
	top: 10px;
	right: 10px;
	width: 2.4em;
	height: 2.4em;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: 900;
	font-size: clamp(.75rem, 2vw, 1.1rem);
	color: #000;
	z-index: 2;
}

.level-panel:nth-child(1) { background: #86efac; }
.level-panel:nth-child(1) .level-badge { background: #4ade80; }
.level-panel:nth-child(2) { background: #93c5fd; }
.level-panel:nth-child(2) .level-badge { background: #60a5fa; }
.level-panel:nth-child(3) { background: #d8b4fe; }
.level-panel:nth-child(3) .level-badge { background: #c4b5fd; color: #1a1a1a; }
.level-panel:nth-child(4) { background: #fca5a5; }
.level-panel:nth-child(4) .level-badge { background: #e2b8c8; }
.level-panel:nth-child(5) { background: #fcd34d; }
.level-panel:nth-child(5) .level-badge { background: #fbbf24; }

/* ---------- Nav ---------- */

.nav-bar {
	background: #f5f5f5;
	border-bottom: 1px solid #ddd;
}

.nav-bar .container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 16px;
}

.nav-toggle { display: none; }
.nav-toggle-label { display: none; }

.nav {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
}

.nav li { display: block; }

.nav li a {
	display: block;
	padding: 12px 18px;
	color: var(--text-dark);
	font-weight: 500;
	font-size: .95rem;
	letter-spacing: .01em;
}

.nav li a:hover {
	color: var(--elllo-blue);
	text-decoration: none;
}

/* ---------- Page layout ---------- */

.content .container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 16px;
	display: grid;
	grid-template-columns: 1fr;
	gap: 32px;
}

@media (min-width: 900px) {
	.content .container {
		grid-template-columns: 3fr 1fr;
		align-items: start;
	}
}

/* ---------- Intro block ---------- */

.lessoninfo {
	padding: 28px 0 8px;
}

.lessoninfo h3 {
	margin: 0 0 8px;
	font-size: 1.6rem;
	color: var(--elllo-blue);
}

.lessoninfo p {
	margin: 0;
	color: var(--text-muted);
	line-height: 1.5;
	max-width: 720px;
}

/* ---------- Lesson grid ---------- */

.lesson-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
	gap: var(--gap);
	margin: 24px 0;
}

.lesson-card {
	display: flex;
	flex-direction: column;
	border: 1px solid var(--border-light);
	border-radius: var(--card-radius);
	overflow: hidden;
	background: #fff;
	transition: box-shadow .15s ease, transform .15s ease;
}

.lesson-card:hover {
	box-shadow: 0 4px 14px rgba(0,0,0,.08);
	transform: translateY(-2px);
}

.lesson-card .thumb {
	aspect-ratio: 240 / 160;
	width: 100%;
	overflow: hidden;
	background: #eee;
}

.lesson-card .thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.lesson-card .card-body {
	padding: 14px 16px 16px;
	flex: 1;
	display: flex;
	flex-direction: column;
	gap: 6px;
}

.lesson-card .card-title {
	font-size: 1rem;
	font-weight: 700;
	line-height: 1.3;
	margin: 0;
}

.lesson-card .card-title a { color: var(--text-dark); }
.lesson-card .card-title a:hover { color: var(--elllo-blue); }

.lesson-card .card-blurb {
	font-size: .9rem;
	color: var(--text-muted);
	line-height: 1.45;
	margin: 0;
}

.lesson-card .card-meta {
	margin-top: auto;
	font-size: .85rem;
	color: var(--text-muted);
	display: flex;
	align-items: center;
	gap: 6px;
	flex-wrap: wrap;
}

.lesson-card .card-meta img.flag {
	width: 20px;
	height: 10px;
	vertical-align: middle;
}

.lesson-card .card-links a {
	display: block;
	font-size: .9rem;
	padding: 2px 0;
}

.grid-section-title {
	font-size: 1.1rem;
	color: var(--elllo-blue);
	margin: 36px 0 4px;
	padding-bottom: 6px;
	border-bottom: 2px solid var(--elllo-blue);
}

/* ---------- CTA Box ---------- */

.cta-box {
	background: #f0f5ff;
	border-left: 4px solid #1565C0;
	border-radius: 6px;
	padding: 20px;
}

.cta-box h3 {
	margin: 0 0 10px;
	color: #1565C0;
	font-size: 1.1rem;
}

.cta-box p {
	margin: 0 0 14px;
	font-size: .9rem;
	color: #444;
	line-height: 1.5;
}

.cta-box a {
	display: inline-block;
	background: #1565C0;
	color: #fff;
	padding: 8px 16px;
	border-radius: 4px;
	font-weight: 600;
	font-size: .9rem;
}

.cta-box a:hover {
	background: #0d47a1;
	text-decoration: none;
}

/* ---------- Sidebar ---------- */

.aside {
	display: flex;
	flex-direction: column;
	gap: 20px;
}

.aside h2, .aside h4 {
	color: var(--elllo-blue);
	margin: 4px 0 0;
}

.aside h2 { font-size: 1.2rem; }
.aside h4 { font-size: 1rem; }

.spacerpromo img {
	border-radius: var(--card-radius);
}

/* ---------- Footer ---------- */

.footer {
	margin-top: 48px;
	padding: 20px 0;
	text-align: center;
	background: #f4f4f4;
	color: var(--text-muted);
	font-size: .85rem;
}

/* ---------- Mobile nav ---------- */

@media (max-width: 640px) {
	.nav-toggle-label { display: block; }

	.nav {
		display: none;
		flex-direction: column;
		width: 100%;
	}

	.nav-toggle:checked ~ ul.nav {
		display: flex;
	}

	.nav-bar .container {
		display: flex;
		flex-wrap: wrap;
		justify-content: space-between;
		align-items: center;
	}

	.header-wordmark h1 {
		white-space: normal;
		font-size: clamp(1.2rem, 6vw, 1.8rem);
	}
}