/*
	Custom modern layer on top of Massively (HTML5 UP).
	Adds section styling, cards, news timeline and richer imagery
	while keeping the theme's dark hero + light content panels.
*/

:root {
	--accent: #18bfef;
	--accent-2: #7a5cff;
	--accent-grad: linear-gradient(135deg, #18bfef 0%, #7a5cff 100%);
	--ink: #212931;
	--ink-soft: #5c666f;
	--card-bg: #ffffff;
	--card-border: #e7ebee;
	--card-shadow: 0 10px 30px -18px rgba(20, 32, 45, 0.45);
	--card-shadow-hover: 0 22px 44px -20px rgba(24, 100, 160, 0.55);
	--radius: 16px;
}

/* ---------- Section scaffolding ---------- */

.section-head {
	text-align: center;
	margin-bottom: 2.5rem;
}

.section-head .eyebrow {
	display: inline-block;
	font-family: 'Source Sans Pro', Helvetica, sans-serif;
	font-weight: 900;
	letter-spacing: 0.35em;
	text-transform: uppercase;
	font-size: 0.7rem;
	color: var(--accent);
	margin-bottom: 0.6rem;
}

.section-head h2 {
	font-size: 2.1rem !important;
	line-height: 1.15;
	margin: 0 auto 0.75rem auto !important;
	border-bottom: 0 !important;
}

.section-head h2 a { border-bottom: 0; }

.section-head p {
	color: var(--ink-soft);
	max-width: 42rem;
	margin: 0 auto;
	font-style: normal;
}

.section-head .rule {
	width: 64px;
	height: 4px;
	border-radius: 4px;
	background: var(--accent-grad);
	margin: 1rem auto 0 auto;
}

/* ---------- About / hero card ---------- */

.about {
	display: flex;
	gap: 2.5rem;
	align-items: center;
	text-align: left;
}

.about__body { flex: 1 1 auto; }

.about__body p { font-size: 1.05rem; line-height: 1.9; }

.about__photo {
	flex: 0 0 220px;
	max-width: 220px;
}

.about__photo img {
	width: 100%;
	border-radius: 20px;
	box-shadow: var(--card-shadow);
	border: 3px solid #fff;
	outline: 1px solid var(--card-border);
}

.chips {
	list-style: none;
	padding: 0;
	margin: 1.4rem 0 0 0;
	display: flex;
	flex-wrap: wrap;
	gap: 0.6rem;
}

.chips li { margin: 0; padding: 0; }

.chips a {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.5rem 1rem;
	border-radius: 999px;
	border: 1px solid var(--card-border);
	background: #fbfdfe;
	color: var(--ink) !important;
	font-family: 'Source Sans Pro', Helvetica, sans-serif;
	font-size: 0.8rem;
	font-weight: 600;
	letter-spacing: 0.02em;
	line-height: 1;
	transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.chips a:hover {
	transform: translateY(-2px);
	border-color: var(--accent);
	box-shadow: var(--card-shadow);
}

.chips .icon:before {
	color: var(--accent);
}

/* ---------- News timeline ---------- */

.news {
	list-style: none;
	margin: 0 auto;
	padding: 0;
	max-width: 48rem;
	text-align: left;
}

.news li {
	position: relative;
	padding: 0 0 1.6rem 2.2rem;
	border-left: 2px solid var(--card-border);
}

.news li:last-child { border-left-color: transparent; padding-bottom: 0; }

.news li:before {
	content: '';
	position: absolute;
	left: -8px;
	top: 4px;
	width: 14px;
	height: 14px;
	border-radius: 50%;
	background: var(--accent-grad);
	box-shadow: 0 0 0 4px rgba(24, 191, 239, 0.15);
}

.news .when {
	display: inline-block;
	font-family: 'Source Sans Pro', Helvetica, sans-serif;
	font-weight: 900;
	font-size: 0.72rem;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--accent);
	margin-bottom: 0.15rem;
}

.news p { margin: 0; line-height: 1.7; color: var(--ink); }

/* ---------- Card grids ---------- */

.card-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
	gap: 1.6rem;
}

.card {
	display: flex;
	flex-direction: column;
	background: var(--card-bg);
	border: 1px solid var(--card-border);
	border-radius: var(--radius);
	overflow: hidden;
	box-shadow: var(--card-shadow);
	transition: transform 0.25s ease, box-shadow 0.25s ease;
	text-align: left;
}

.card:hover {
	transform: translateY(-6px);
	box-shadow: var(--card-shadow-hover);
}

.card__media {
	position: relative;
	height: 110px;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--accent-grad);
	color: #fff;
}

.card__media.alt { background: linear-gradient(135deg, #2b3440 0%, #465162 100%); }

.card__media .icon:before {
	font-size: 2.6rem;
	color: #fff;
}

.card__media .tag {
	position: absolute;
	top: 0.7rem;
	right: 0.7rem;
	font-family: 'Source Sans Pro', Helvetica, sans-serif;
	font-size: 0.62rem;
	font-weight: 900;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	background: rgba(0, 0, 0, 0.28);
	padding: 0.28rem 0.6rem;
	border-radius: 999px;
	color: #fff;
}

.card__body {
	padding: 1.3rem 1.4rem;
	display: flex;
	flex-direction: column;
	flex: 1 1 auto;
}

.card__body h3 {
	font-size: 1.05rem;
	line-height: 1.3;
	margin: 0 0 0.5rem 0;
}

.card__body h3 a { border-bottom: 0; }

.card__body p {
	color: var(--ink-soft);
	font-size: 0.9rem;
	line-height: 1.65;
	margin: 0 0 1rem 0;
	flex: 1 1 auto;
}

.card__foot {
	display: flex;
	align-items: center;
	gap: 1rem;
	flex-wrap: wrap;
	font-family: 'Source Sans Pro', Helvetica, sans-serif;
	font-size: 0.78rem;
	font-weight: 600;
}

.card__foot a { color: var(--accent) !important; border-bottom: 0; }
.card__foot a:hover { text-decoration: underline; }
.card__foot .meta { color: var(--ink-soft); margin-left: auto; }

/* ---------- Publications list ---------- */

.pub-list { list-style: none; margin: 0; padding: 0; }

.pub-item {
	display: flex;
	gap: 1.4rem;
	align-items: flex-start;
	padding: 1.5rem;
	border: 1px solid var(--card-border);
	border-radius: var(--radius);
	margin-bottom: 1.2rem;
	background: var(--card-bg);
	box-shadow: var(--card-shadow);
	transition: transform 0.2s ease, box-shadow 0.2s ease;
	text-align: left;
}

.pub-item:hover { transform: translateY(-3px); box-shadow: var(--card-shadow-hover); }

.pub-item__year {
	flex: 0 0 auto;
	font-family: 'Source Sans Pro', Helvetica, sans-serif;
	font-weight: 900;
	font-size: 1.1rem;
	color: #fff;
	background: var(--accent-grad);
	border-radius: 12px;
	padding: 0.6rem 0.8rem;
	min-width: 4.2rem;
	text-align: center;
	line-height: 1.1;
}

.pub-item__year small {
	display: block;
	font-size: 0.6rem;
	letter-spacing: 0.08em;
	opacity: 0.85;
	margin-top: 0.2rem;
}

.pub-item__body { flex: 1 1 auto; }

.pub-item__body h3 { font-size: 1.12rem; line-height: 1.35; margin: 0 0 0.4rem 0; }
.pub-item__body h3 a { border-bottom: 0; }
.pub-item__authors { font-size: 0.85rem; color: var(--ink-soft); margin: 0 0 0.7rem 0; }
.pub-item__authors .me { color: var(--ink); font-weight: 700; }

.pub-links {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
}

.pub-links li { margin: 0; padding: 0; }

.pub-links a {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	padding: 0.35rem 0.8rem;
	border-radius: 8px;
	border: 1px solid var(--card-border);
	background: #fbfdfe;
	font-family: 'Source Sans Pro', Helvetica, sans-serif;
	font-size: 0.76rem;
	font-weight: 600;
	color: var(--ink) !important;
	border-bottom: 1px solid var(--card-border);
	transition: border-color 0.2s ease, transform 0.2s ease;
}

.pub-links a:hover { border-color: var(--accent); transform: translateY(-1px); }
.pub-links .icon:before { color: var(--accent); }

.pub-links.big a { padding: 0.6rem 1.1rem; font-size: 0.85rem; }

/* ---------- Paper page header ---------- */

.paper-meta { text-align: center; margin: -0.5rem 0 2rem 0; }
.paper-meta .venue {
	display: inline-block;
	font-family: 'Source Sans Pro', Helvetica, sans-serif;
	font-weight: 900;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	font-size: 0.72rem;
	color: #fff;
	background: var(--accent-grad);
	padding: 0.35rem 0.9rem;
	border-radius: 999px;
	margin-bottom: 1rem;
}
.paper-meta .authors { color: var(--ink-soft); font-size: 0.95rem; line-height: 1.8; }
.paper-meta .authors .me { color: var(--ink); font-weight: 700; }
.paper-meta .pub-links { justify-content: center; margin-top: 1.4rem; }

.paper-embed {
	position: relative;
	padding-bottom: 56.25%;
	height: 0;
	overflow: hidden;
	border-radius: var(--radius);
	box-shadow: var(--card-shadow);
	margin-bottom: 2rem;
}
.paper-embed iframe {
	position: absolute;
	top: 0; left: 0;
	width: 100%; height: 100%;
	border: 0;
}

.back-link { display: inline-block; margin-top: 2rem; font-family: 'Source Sans Pro', Helvetica, sans-serif; font-weight: 600; }

.callout {
	border-left: 4px solid var(--accent);
	background: #f6fbfe;
	border-radius: 10px;
	padding: 1.1rem 1.3rem;
	margin: 1.5rem 0;
}
.callout p:last-child { margin-bottom: 0; }

/* ---------- Responsive ---------- */

@media (max-width: 736px) {
	.about { flex-direction: column-reverse; text-align: center; }
	.about__photo { flex-basis: 160px; max-width: 160px; }
	.chips { justify-content: center; }
	.section-head h2 { font-size: 1.7rem !important; }
	.pub-item { flex-direction: column; }
}