:root {
  /* custom colors */
  --bg-grey: #e0e0e0;
  --bg-red: #ffe6e6;
  --bg-blue: #E6FFFF;
  --bg-green: #F3FFE6;
  --bg-purple: #F3E6FF;
}

body {
  font-family: 'Noto Sans', sans-serif;
}

.hero-body {
  padding-top: 0;
  padding-bottom: 3rem;
}

nav > .hero-body {
	padding-left: 0;
	padding-right: 0;
}

#content {
	display: block;
	padding: 20px;
	min-height: 300px;
}

.active-button {
  background-color: var(--bg-grey);
}

a.button:hover {
  background-color: #f5f5f5 !important;
}

.section {
	margin: 6rem auto;
	padding: 0;
}

.subsection {
	margin: 1.5rem 0;
}

.sponsors-grid {
  justify-content: center;
}

.sponsor-card {
  height: 234px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.sponsor-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.course > h4 {
  margin: 0 0 1rem 0;
  padding: 0;
}

.course > h4.instructor {
  float: right;
}

.content .course > figure.course-image {
  float: right;
  margin: 0 0 1rem 1rem;
  padding: 0;
  width: 30%;
}

.course > figure > img {
  border: 0.1em solid black;
  border-radius: 6px;
}

.photo-gallery-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
	grid-auto-flow: dense;
	gap: 8px;
}

.photo-gallery-grid figure {
	position: relative;
	margin: 0;
	aspect-ratio: 1 / 1;
	overflow: hidden;
	border-radius: 6px;
	cursor: pointer;
}

/* Bulma's .content figure:not(:first-child)/:not(:last-child) rules add
   2em top/bottom margin that otherwise breaks row alignment in the grid. */
.photo-gallery-grid figure:not(:first-child) {
	margin-top: 0;
}

.photo-gallery-grid figure:not(:last-child) {
	margin-bottom: 0;
}

.photo-gallery-grid img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	transition: transform 0.2s ease, filter 0.2s ease;
}

.photo-gallery-grid figure:hover img,
.photo-gallery-grid figure:focus-visible img {
	transform: scale(1.08);
	filter: brightness(0.85);
}

#photo-modal .modal-content {
	max-width: 90vw;
	width: fit-content;
	text-align: left;
}

#photo-modal .modal-content img {
	max-width: 90vw;
	max-height: 80vh;
	border-radius: 6px;
	display: block;
}

#photo-modal .photo-modal-caption {
	margin-top: 0.75rem;
	font-size: 1.1rem;
	color: white;
	display: flex;
	justify-content: space-between;
	gap: 1rem;
}

#photo-modal .photo-modal-caption span {
	opacity: 0.8;
}

.modal-nav {
	position: fixed;
	top: 50%;
	transform: translateY(-50%);
	background: rgba(0, 0, 0, 0.4);
	color: white;
	border: none;
	width: 3rem;
	height: 3rem;
	border-radius: 50%;
	font-size: 1.5rem;
	line-height: 1;
	cursor: pointer;
	z-index: 40;
	transition: background 0.15s ease;
}

.modal-nav:hover {
	background: rgba(0, 0, 0, 0.7);
}

.modal-nav-prev {
	left: 1.5rem;
}

.modal-nav-next {
	right: 1.5rem;
}

/* ------------------------------------------------------------------ */
/* Summer school additions                                             */
/* ------------------------------------------------------------------ */

/* Header and footer wordmarks. Widths keep "ICCP" as tall as on the conference
   sites (their 1160-unit-wide logo uses max-width 65vh; ours is 1599 units).
   Phones get the compact lockup through <picture> (see index.html). */
.hero-logo {
	display: block;
	width: 100%;
	height: auto;
	max-width: 90vh;
	margin-bottom: 1vh;
	filter: drop-shadow(0 0 2px #4e4e4e);
}

.hero-subtitle {
	font-size: 1.5rem;
	color: #fff;
	text-shadow: 0 0 10px #000, 0 0 4px #000;
	margin-top: 0.5rem;
}

.footer-logo-picture {
	display: block;
	width: 100%;
}

.footer-logo {
	display: block;
	width: 100%;
	height: auto;
	max-width: 69vh;
	margin: 0 auto 10px auto;
}

@media screen and (max-width: 768px) {
	.hero-logo {
		max-width: 420px;
	}

	.hero-subtitle {
		font-size: 1.15rem;
	}

	.footer-logo {
		max-width: 300px;
	}
}

/* Deep links (#page/anchor) land with a little breathing room. */
#content [id] {
	scroll-margin-top: 1rem;
}

/* Home: side box, same look as the conference "Announcements" box. */
.side-box {
	align-self: flex-start;
	background: rgba(255, 255, 255, 0.9);
	padding: 1.5vh;
	border-radius: 8px;
	box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.content .side-box h2 {
	font-size: 1.75rem;
	margin-bottom: 1vh;
	color: #333;
}

.glance-stats {
	display: flex;
	justify-content: space-around;
	text-align: center;
	margin: 0.5rem 0 1rem 0;
}

.glance-stats .stat-number {
	display: block;
	font-size: 2.5rem;
	font-weight: 700;
	line-height: 1.1;
	color: #333;
}

.glance-stats .stat-label {
	display: block;
	font-size: 0.8rem;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	color: #555;
}

/* Home: one card per edition. */
.edition-card {
	height: 100%;
	display: flex;
	flex-direction: column;
}

.edition-card .card-image img {
	display: block;
	width: 100%;
	height: auto;
	aspect-ratio: 16 / 9;
	object-fit: cover;
}

.edition-card .card-content {
	flex: 1;
}

.content .edition-card .title {
	margin-bottom: 0.5rem;
}

.edition-card .edition-meta {
	color: #555;
}

.content .edition-card ul {
	margin-top: 0.25rem;
}

/* Courses: overview table. */
.course-table td.offered {
	text-align: center;
	font-size: 1.1rem;
	line-height: 1.2;
}

.course-table th.year {
	text-align: center;
	width: 4.5rem;
}

.course-table td,
.course-table th {
	vertical-align: middle;
}

/* Courses: cards keep their floated figure inside the box. */
.box.course {
	display: flow-root;
}

.course-footer {
	clear: both;
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 0.5rem 1rem;
	margin-top: 1rem;
	padding-top: 0.75rem;
	border-top: 1px solid #ededed;
}

.course-footer .course-years {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.4rem;
}

.course-footer .course-years-label {
	color: #555;
	font-size: 0.9rem;
}

/* Photos: a few tiles per year are shown at 2x2. */
.photo-gallery-grid figure.is-featured {
	grid-column: span 2;
	grid-row: span 2;
}

/* Phones: stack course cards (title, instructor, image, text), and use
   ragged-right text, since justified text leaves large gaps in narrow columns. */
@media screen and (max-width: 768px) {
	.content .has-text-justified {
		text-align: left !important;
	}

	.box.course {
		display: flex;
		flex-direction: column;
	}

	.course > h4:not(.instructor) {
		order: -1;
	}

	.course > h4.instructor {
		float: none;
	}

	.content .course > figure.course-image {
		float: none;
		width: 100%;
		max-width: 400px;
		margin: 0 0 1rem 0;
	}

	.modal-nav-prev {
		left: 0.5rem;
	}

	.modal-nav-next {
		right: 0.5rem;
	}
}