/* Baobab Event Programme
 * Layout notes:
 * - .bep-lanes holds one absolutely-positioned .bep-cluster per group of
 *   time-overlapping sessions; each cluster is exactly as tall as its own
 *   time span, so clusters never overlap each other vertically.
 * - Inside a cluster, .bep-col are fixed-width column lanes (greedy
 *   interval-graph coloring assigns each session to a column). When a
 *   cluster has more columns than the configured max, .bep-cluster-track
 *   scrolls horizontally instead of squeezing everything to fit.
 * - .bep-session cards are absolutely positioned *within their cluster*,
 *   because a column can hold several non-overlapping sessions stacked at
 *   different times.
 */

.bep-programme {
	--bep-axis-width: 56px;
	--bep-col-width: 150px;
	--bep-accent: #b8752e;
	--bep-border: #e2ddd6;
	--bep-bg-alt: #faf8f5;
	--bep-text: #2b2620;
	--bep-text-muted: #756e63;
	box-sizing: border-box;
	color: var(--bep-text);
	font-size: 15px;
	line-height: 1.4;
}

.bep-programme *,
.bep-programme *::before,
.bep-programme *::after {
	box-sizing: inherit;
}

.bep-heading {
	margin: 0 0 1rem;
}

.bep-error {
	padding: 1rem 1.25rem;
	border: 1px solid #d98c8c;
	background: #fbeaea;
	color: #7a2222;
	border-radius: 6px;
}

/* ---------- Toolbar: day tabs + filters ---------- */

.bep-toolbar {
	display: flex;
	flex-direction: column;
	gap: 0.75rem;
	margin-bottom: 1rem;
}

.bep-tabs {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem;
	border-bottom: 1px solid var(--bep-border);
	padding-bottom: 0.6rem;
}

.bep-tab {
	appearance: none;
	border: 1px solid var(--bep-border);
	background: #fff;
	color: var(--bep-text);
	padding: 0.5rem 0.9rem;
	border-radius: 999px;
	font-size: 0.9em;
	font-weight: 600;
	cursor: pointer;
	white-space: nowrap;
}

.bep-tab:hover {
	border-color: var(--bep-accent);
}

.bep-tab[aria-selected="true"] {
	background: var(--bep-accent);
	border-color: var(--bep-accent);
	color: #fff;
}

.bep-filters {
	display: flex;
	flex-wrap: wrap;
	gap: 1.25rem;
}

.bep-filter-group-label {
	display: block;
	font-size: 0.78em;
	text-transform: uppercase;
	letter-spacing: 0.04em;
	color: var(--bep-text-muted);
	margin-bottom: 0.35rem;
}

.bep-filter-chips {
	display: flex;
	flex-wrap: wrap;
	gap: 0.35rem;
}

.bep-chip {
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
	border: 1px solid var(--bep-border);
	border-radius: 999px;
	padding: 0.3rem 0.7rem;
	font-size: 0.85em;
	cursor: pointer;
	background: #fff;
	user-select: none;
}

.bep-chip input {
	margin: 0;
}

.bep-chip[data-checked="false"] {
	opacity: 0.55;
}

.bep-chip-dot {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	flex: none;
	background: var(--bep-accent);
}

/* ---------- Timeline ---------- */

.bep-timeline-inner {
	display: flex;
	align-items: flex-start;
	width: 100%;
}

.bep-axis {
	position: relative;
	flex: 0 0 var(--bep-axis-width);
	width: var(--bep-axis-width);
}

.bep-axis-row {
	position: absolute;
	left: 0;
	right: 0;
	transform: translateY(-0.6em);
	font-size: 0.78em;
	color: var(--bep-text-muted);
	padding-right: 0.5rem;
	text-align: right;
	border-top: 1px dashed var(--bep-border);
}

.bep-axis-row:first-child {
	border-top: none;
}

.bep-lanes {
	position: relative;
	flex: 1 1 auto;
	min-width: 0;
	border-left: 1px solid var(--bep-border);
}

.bep-cluster {
	position: absolute;
	left: 0;
	right: 0;
}

.bep-cluster-track {
	display: flex;
	gap: 6px;
	height: 100%;
	padding: 0 6px;
	overflow-x: auto;
	scroll-snap-type: x proximity;
}

.bep-col {
	position: relative;
	flex: 0 0 var(--bep-col-width);
	height: 100%;
	scroll-snap-align: start;
}

.bep-session {
	position: absolute;
	left: 0;
	right: 0;
	min-height: 2.6em;
	border-radius: 6px;
	border: 1px solid var(--bep-border);
	border-left: 4px solid var(--bep-accent);
	background: #fff;
	padding: 0.4rem 0.55rem;
	overflow: hidden;
	box-shadow: 0 1px 2px rgba(20, 15, 5, 0.06);
	display: flex;
	flex-direction: column;
	gap: 0.15rem;
}

.bep-session-time {
	font-size: 0.75em;
	font-weight: 700;
	color: var(--bep-accent);
	/* Never let the flex column squeeze this below its natural size - a
	   card that's too short to fit everything should clip the overflow
	   (still legible) rather than shrink the text down to nothing. */
	flex-shrink: 0;
}

.bep-session-title {
	font-size: 0.92em;
	font-weight: 600;
	overflow: hidden;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	flex-shrink: 0;
}

.bep-session-meta {
	display: flex;
	flex-wrap: wrap;
	gap: 0.3rem;
	margin-top: auto;
}

/* Sessions too short for the stacked time+title layout (coffee breaks,
   short changeovers, etc.) get a single line instead. */
.bep-session--compact {
	justify-content: center;
	padding-top: 0.25rem;
	padding-bottom: 0.25rem;
}

.bep-session-line {
	display: flex;
	align-items: baseline;
	gap: 0.4rem;
	min-width: 0;
}

.bep-session--compact .bep-session-time {
	font-size: 0.72em;
}

.bep-session--compact .bep-session-title {
	font-size: 0.85em;
	display: block;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	min-width: 0;
	flex: 1 1 auto;
}

.bep-session-badge {
	font-size: 0.68em;
	background: var(--bep-bg-alt);
	border: 1px solid var(--bep-border);
	border-radius: 999px;
	padding: 0.05rem 0.45rem;
	color: var(--bep-text-muted);
}

.bep-session-expand {
	position: absolute;
	top: 0.3rem;
	right: 0.3rem;
	appearance: none;
	border: none;
	background: transparent;
	color: var(--bep-text-muted);
	width: 1.6em;
	height: 1.6em;
	border-radius: 50%;
	cursor: pointer;
	font-size: 0.85em;
	line-height: 1;
}

.bep-session-expand:hover,
.bep-session-expand:focus-visible {
	background: var(--bep-bg-alt);
	color: var(--bep-text);
}

.bep-empty {
	padding: 2rem 1rem;
	text-align: center;
	color: var(--bep-text-muted);
	border: 1px dashed var(--bep-border);
	border-radius: 8px;
	margin-top: 0.75rem;
}

/* ---------- Modal ---------- */

.bep-modal[hidden] {
	display: none;
}

.bep-modal-backdrop {
	position: fixed;
	inset: 0;
	background: rgba(20, 15, 5, 0.55);
	z-index: 9998;
}

.bep-modal-dialog {
	position: fixed;
	z-index: 9999;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: min(560px, calc(100vw - 2rem));
	max-height: calc(100vh - 3rem);
	overflow-y: auto;
	background: #fff;
	border-radius: 10px;
	padding: 1.5rem;
	box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.bep-modal-close {
	position: absolute;
	top: 0.75rem;
	right: 0.75rem;
	appearance: none;
	border: none;
	background: var(--bep-bg-alt);
	width: 2em;
	height: 2em;
	border-radius: 50%;
	cursor: pointer;
	font-size: 1em;
}

.bep-modal-title {
	margin: 0 1.8em 0.25rem 0;
	font-size: 1.25em;
}

.bep-modal-time {
	color: var(--bep-accent);
	font-weight: 700;
	font-size: 0.9em;
	margin-bottom: 0.75rem;
}

.bep-modal-badges {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem;
	margin-bottom: 0.9rem;
}

.bep-modal-description {
	margin-bottom: 1rem;
	white-space: pre-line;
}

.bep-modal-speakers-title {
	font-size: 0.8em;
	text-transform: uppercase;
	letter-spacing: 0.04em;
	color: var(--bep-text-muted);
	margin-bottom: 0.5rem;
}

.bep-speaker {
	display: flex;
	gap: 0.65rem;
	align-items: flex-start;
	margin-bottom: 0.75rem;
}

.bep-speaker-photo {
	width: 44px;
	height: 44px;
	border-radius: 50%;
	object-fit: cover;
	flex: none;
	background: var(--bep-bg-alt);
}

.bep-speaker-name {
	font-weight: 600;
	font-size: 0.92em;
}

.bep-speaker-bio {
	font-size: 0.85em;
	color: var(--bep-text-muted);
}

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

@media (max-width: 767px) {
	.bep-programme {
		--bep-axis-width: 44px;
		--bep-col-width: 122px;
		font-size: 14px;
	}

	.bep-tabs {
		flex-wrap: nowrap;
		overflow-x: auto;
		scroll-snap-type: x mandatory;
		-webkit-overflow-scrolling: touch;
	}

	.bep-tab {
		scroll-snap-align: start;
	}

	.bep-session-meta {
		display: none;
	}

	.bep-session-title {
		-webkit-line-clamp: 2;
	}
}

@media (min-width: 768px) {
	.bep-filters {
		margin-left: auto;
	}

	.bep-toolbar {
		flex-direction: row;
		align-items: flex-end;
		justify-content: space-between;
		flex-wrap: wrap;
	}
}