/*
 * [event_grid] — griglia responsive degli eventi.
 * Personalizzabile dal tema con le variabili CSS, es.:
 *   .ere-grid { --ere-accent: #b4232a; --ere-radius: 10px; }
 */
.ere-grid {
	/* Palette: petrolio, blu e azzurro con accento arancio. */
	--ere-accent: #005c77;
	--ere-accent-2: #006fb7;
	--ere-accent-3: #0095c9;
	--ere-highlight: #feb633;
	--ere-highlight-text: #00394a;
	--ere-accent-text: #fff;
	--ere-card-bg: #fff;
	--ere-card-fg: #12343f;
	--ere-muted: #5a6d74;
	--ere-border: #e1e8eb;
	--ere-radius: 18px;
	--ere-gap: 28px;
	--ere-ok: #13a06f;
	--ere-live: #0095c9;
	--ere-warn: #d97706;
	--ere-ko: #dc2626;
	--ere-off: #6b7280;
	margin: 1.5em 0;
}

.ere-grid__list {
	display: grid;
	/* Colonne automatiche: tante quante entrano (min 270px), al massimo --ere-grid-columns. */
	grid-template-columns: repeat(
		auto-fill,
		minmax( max( 270px, calc( ( 100% - ( var( --ere-grid-columns, 3 ) - 1 ) * var( --ere-gap ) ) / var( --ere-grid-columns, 3 ) ) ), 1fr )
	);
	gap: var( --ere-gap );
	margin: 0;
	padding: 0;
	list-style: none;
}

/* ------------------------------------------------------------------ Scheda */

.ere-card {
	position: relative;
	display: flex;
	flex-direction: column;
	margin: 0;
	background: var( --ere-card-bg );
	color: var( --ere-card-fg );
	border: 1px solid var( --ere-border );
	border-radius: var( --ere-radius );
	box-shadow: 0 1px 2px rgba( 17, 24, 39, 0.04 ), 0 4px 14px rgba( 17, 24, 39, 0.05 );
	overflow: hidden;
	isolation: isolate;
	transition: transform 0.25s cubic-bezier( 0.2, 0.7, 0.2, 1 ), box-shadow 0.25s ease, border-color 0.25s ease;
}

.ere-card:hover,
.ere-card:focus-within {
	transform: translateY( -4px );
	border-color: color-mix( in srgb, var( --ere-accent ) 28%, var( --ere-border ) );
	box-shadow: 0 2px 4px rgba( 17, 24, 39, 0.05 ), 0 18px 40px -8px color-mix( in srgb, var( --ere-accent ) 30%, rgba( 17, 24, 39, 0.18 ) );
}

.ere-card:focus-within {
	outline: 3px solid color-mix( in srgb, var( --ere-accent ) 55%, transparent );
	outline-offset: 3px;
}

/* Testata: sfumatura dell'accento con luci morbide, calendario e indicatore. */
.ere-card__head {
	position: relative;
	display: flex;
	align-items: flex-start;
	justify-content: flex-end;
	height: 92px;
	padding: 16px 16px 0;
	background:
		radial-gradient( 120% 90% at 100% 0%, rgba( 255, 255, 255, 0.22 ) 0%, transparent 55% ),
		radial-gradient( 80% 120% at 0% 100%, rgba( 0, 0, 0, 0.18 ) 0%, transparent 60% ),
		linear-gradient( 125deg, var( --ere-accent ) 0%, var( --ere-accent ) 38%, var( --ere-accent-2 ) 72%, var( --ere-accent-3 ) 100% );
	color: var( --ere-accent-text );
}

/* Trama leggera a puntini. */
.ere-card__head::before {
	content: "";
	position: absolute;
	inset: 0;
	z-index: -1;
	background-image: radial-gradient( rgba( 255, 255, 255, 0.16 ) 1px, transparent 1.2px );
	background-size: 14px 14px;
	mask-image: linear-gradient( 160deg, #000 0%, transparent 70% );
	-webkit-mask-image: linear-gradient( 160deg, #000 0%, transparent 70% );
	pointer-events: none;
}

.ere-card.is-unavailable .ere-card__head {
	filter: grayscale( 0.85 ) brightness( 0.95 );
}

/* Calendario a strappo: sporge sul corpo della scheda. */
.ere-card__cal {
	position: absolute;
	z-index: 3;
	left: 20px;
	top: 44px;
	display: flex;
	flex-direction: column;
	align-items: center;
	width: 72px;
	padding: 0 0 8px;
	background: #fff;
	color: var( --ere-card-fg );
	border-radius: 14px;
	box-shadow: 0 10px 24px -6px rgba( 15, 23, 42, 0.35 );
	overflow: hidden;
	text-align: center;
	line-height: 1;
}

.ere-card__cal-month {
	display: block;
	width: 100%;
	padding: 6px 0 5px;
	background: var( --ere-highlight );
	color: var( --ere-highlight-text );
	font-size: 0.72rem;
	font-weight: 700;
	letter-spacing: 0.14em;
	text-transform: uppercase;
}

.ere-card.is-unavailable .ere-card__cal-month {
	background: var( --ere-off );
}

.ere-card__cal-day {
	margin-top: 8px;
	font-size: 2.1rem;
	font-weight: 800;
	letter-spacing: -0.03em;
	font-variant-numeric: tabular-nums;
}

.ere-card__cal-dow {
	margin-top: 4px;
	font-size: 0.7rem;
	font-weight: 600;
	color: var( --ere-muted );
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

/* ----------------------------------------------------- Indicatore di stato */

.ere-card__flag {
	display: inline-flex;
	align-items: center;
	gap: 7px;
	padding: 6px 12px 6px 10px;
	border-radius: 999px;
	background: rgba( 255, 255, 255, 0.95 );
	color: var( --ere-card-fg );
	box-shadow: 0 4px 14px -4px rgba( 15, 23, 42, 0.35 );
	font-size: 0.78rem;
	font-weight: 700;
	letter-spacing: 0.01em;
	line-height: 1.2;
	white-space: nowrap;
	backdrop-filter: blur( 6px );
}

.ere-card__flag-dot {
	position: relative;
	width: 9px;
	height: 9px;
	border-radius: 50%;
	background: var( --flag-color, var( --ere-off ) );
	flex: none;
}

.ere-card__flag--open { --flag-color: var( --ere-ok ); }
.ere-card__flag--live { --flag-color: var( --ere-live ); }
.ere-card__flag--few { --flag-color: var( --ere-warn ); }
.ere-card__flag--full { --flag-color: var( --ere-ko ); }
.ere-card__flag--closed,
.ere-card__flag--past { --flag-color: var( --ere-off ); }

.ere-card__flag--open,
.ere-card__flag--live,
.ere-card__flag--few {
	color: color-mix( in srgb, var( --flag-color ) 75%, #111827 );
}

/* Evento attivo: alone pulsante attorno al puntino. */
.ere-card__flag--open .ere-card__flag-dot::after,
.ere-card__flag--live .ere-card__flag-dot::after,
.ere-card__flag--few .ere-card__flag-dot::after {
	content: "";
	position: absolute;
	inset: -4px;
	border-radius: 50%;
	background: var( --flag-color );
	opacity: 0.35;
	animation: ere-pulse 1.8s ease-out infinite;
}

@keyframes ere-pulse {
	0% { transform: scale( 0.6 ); opacity: 0.5; }
	80%, 100% { transform: scale( 1.9 ); opacity: 0; }
}

/* ------------------------------------------------------------------- Corpo */

.ere-card__body {
	display: flex;
	flex: 1;
	flex-direction: column;
	gap: 14px;
	padding: 50px 22px 20px;
}

.ere-card__title {
	margin: 0;
	font-size: 1.22rem;
	font-weight: 750;
	line-height: 1.28;
	letter-spacing: -0.012em;
}

.ere-card__title a {
	color: inherit;
	text-decoration: none;
	background-image: linear-gradient( currentColor, currentColor );
	background-position: 0 100%;
	background-repeat: no-repeat;
	background-size: 0 1.5px;
	transition: background-size 0.3s ease;
}

.ere-card:hover .ere-card__title a {
	background-size: 100% 1.5px;
}

/* Tutta la scheda è cliccabile (un solo link per gli screen reader). */
.ere-card__title a::after {
	content: "";
	position: absolute;
	inset: 0;
	z-index: 2;
}

.ere-card__title a:focus-visible {
	outline: none;
}

.ere-card__meta {
	display: grid;
	gap: 6px;
	margin: 0;
	padding: 0;
	list-style: none;
	font-size: 0.9rem;
	color: var( --ere-muted );
}

.ere-card__meta-item {
	display: flex;
	align-items: flex-start;
	gap: 9px;
	margin: 0;
	line-height: 1.4;
}

.ere-card__meta-item--date span::first-letter {
	text-transform: uppercase;
}

.ere-card__icon {
	flex: none;
	margin-top: 1px;
	color: var( --ere-accent );
}

.ere-card.is-unavailable .ere-card__icon {
	color: var( --ere-off );
}

.ere-card__excerpt {
	margin: 0;
	font-size: 0.93rem;
	line-height: 1.6;
	color: color-mix( in srgb, var( --ere-card-fg ) 80%, transparent );
}

/* --------------------------------------------------------------- Piè scheda */

.ere-card__foot {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 14px;
	margin-top: auto;
	padding-top: 16px;
	border-top: 1px solid var( --ere-border );
}

.ere-card__avail {
	display: flex;
	flex-direction: column;
	gap: 7px;
	min-width: 0;
	font-size: 0.8rem;
	font-weight: 600;
	color: var( --ere-muted );
}

.ere-card__bar {
	display: block;
	width: 120px;
	max-width: 100%;
	height: 5px;
	border-radius: 99px;
	background: #e6eef1;
	overflow: hidden;
}

.ere-card__bar > span {
	display: block;
	height: 100%;
	border-radius: inherit;
	background: linear-gradient( 90deg, var( --ere-accent ), var( --ere-accent-3 ) );
}

.ere-card--few .ere-card__bar > span {
	background: linear-gradient( 90deg, var( --ere-warn ), var( --ere-ko ) );
}

.ere-card__cta {
	display: inline-flex;
	flex: none;
	align-items: center;
	gap: 8px;
	padding: 10px 16px 10px 18px;
	border-radius: 999px;
	background: var( --ere-accent );
	color: var( --ere-accent-text );
	font-size: 0.9rem;
	font-weight: 700;
	box-shadow: 0 6px 16px -6px color-mix( in srgb, var( --ere-accent ) 80%, transparent );
	transition: gap 0.25s ease, background-color 0.25s ease;
}

.ere-card__cta svg {
	transition: transform 0.25s ease;
}

.ere-card:hover .ere-card__cta {
	background: var( --ere-accent-2 );
}

.ere-card:hover .ere-card__cta svg {
	transform: translateX( 3px );
}

.ere-card.is-unavailable .ere-card__cta {
	background: transparent;
	color: var( --ere-card-fg );
	box-shadow: inset 0 0 0 1.5px var( --ere-border );
}

/* ------------------------------------------------------------------- Varie */

.ere-grid-empty {
	padding: 18px 22px;
	border: 1px dashed currentColor;
	border-radius: 12px;
	opacity: 0.8;
}

.ere-grid-back {
	font-weight: 600;
}

@media ( max-width: 480px ) {
	.ere-card__body { padding-left: 18px; padding-right: 18px; }
	.ere-card__foot { flex-wrap: wrap; }
}

@media ( prefers-reduced-motion: reduce ) {
	.ere-card,
	.ere-card__cta,
	.ere-card__cta svg,
	.ere-card__title a { transition: none; }
	.ere-card:hover,
	.ere-card:focus-within { transform: none; }
	.ere-card__flag-dot::after { animation: none; }
}