/* ==========================================================================
   high5 – podstránka Referencie (logá klientov, portfólio, recenzie)
   ========================================================================== */

.ref-work { background: var(--c-paper); }

.ref-work__head {
	display: flex;
	flex-wrap: wrap;
	align-items: flex-end;
	justify-content: space-between;
	gap: 1.5rem 2rem;
	margin: clamp(2rem, 1.5rem + 2vw, 3.5rem) 0 clamp(2rem, 1.5rem + 1.5vw, 3rem);
}

.ref-work__head .h2 { color: var(--c-ink-700); }
.ref-filter .b-chip { cursor: pointer; font: inherit; font-size: var(--fs-micro); letter-spacing: 0.16em; text-transform: uppercase; background: none; }
.ref-filter .b-chip.is-active { background: var(--c-ink-700); color: var(--c-paper); }

/* Mriežka */
.ref-grid {
	display: grid;
	gap: clamp(0.9rem, 0.5rem + 1.2vw, 1.6rem);
	grid-template-columns: repeat(auto-fill, minmax(min(100%, 19rem), 1fr));
}

@media (min-width: 1024px) { .ref-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

.ref-item { animation: ref-in 0.6s var(--ease-out) both; animation-delay: calc(var(--i, 0) * 0.06s); }
.ref-item[hidden] { display: none; }

@keyframes ref-in { from { opacity: 0; transform: translateY(16px) scale(0.98); } }

.ref-item__btn {
	position: relative;
	display: block;
	width: 100%;
	overflow: hidden;
	aspect-ratio: 1;
	border-radius: var(--radius);
	background: var(--c-mist-2);
	text-align: left;
	cursor: zoom-in;
	isolation: isolate;
}

.ref-item__img,
.ref-item__img img { display: block; width: 100%; height: 100%; }
.ref-item__img img { object-fit: cover; transition: transform 0.9s var(--ease-out); }

/* Hover: obrázok sa jemne pootočí doľava a priblíži, zdola vyjde popis */
.ref-item__btn::after {
	content: "";
	position: absolute;
	inset: 0;
	z-index: 1;
	background: linear-gradient(0deg, rgb(6 22 32 / 0.92) 0%, rgb(6 22 32 / 0.55) 38%, transparent 70%);
	opacity: 0;
	transition: opacity 0.5s var(--ease-out);
}

.ref-item__info {
	position: absolute;
	inset: auto 0 0;
	z-index: 2;
	display: grid;
	gap: 0.3rem;
	padding: clamp(1.1rem, 0.8rem + 1vw, 1.75rem);
	color: var(--c-paper);
	opacity: 0;
	transform: translateY(1.25rem);
	transition: opacity 0.45s var(--ease-out), transform 0.6s var(--ease-out);
}

.ref-item__cat { font-size: var(--fs-micro); font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--c-mint); }
.ref-item__title { font-family: var(--f-display); font-size: clamp(1.15rem, 1rem + 0.5vw, 1.5rem); font-weight: 600; line-height: 1.15; letter-spacing: -0.025em; }
.ref-item__sub { font-size: var(--fs-small); color: rgb(241 246 244 / 0.8); }

@media (hover: hover) {
	.ref-item__btn:hover .ref-item__img img,
	.ref-item__btn:focus-visible .ref-item__img img { transform: rotate(-3deg) scale(1.12); }
	.ref-item__btn:hover::after,
	.ref-item__btn:focus-visible::after { opacity: 1; }
	.ref-item__btn:hover .ref-item__info,
	.ref-item__btn:focus-visible .ref-item__info { opacity: 1; transform: none; }
}

/* Dotykové zariadenia: popis je vidno stále (bez hoveru) */
@media (hover: none) {
	.ref-item__btn::after { opacity: 0.85; background: linear-gradient(0deg, rgb(6 22 32 / 0.85), transparent 55%); }
	.ref-item__info { opacity: 1; transform: none; }
}

.ref-work__cta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: center;
	gap: 1rem 1.75rem;
	margin-top: clamp(3rem, 2rem + 3vw, 5rem);
	text-align: center;
	color: var(--c-ink-700);
}

.ref-work__cta p { font-family: var(--f-display); font-size: clamp(1.15rem, 1rem + 0.5vw, 1.45rem); font-weight: 600; letter-spacing: -0.02em; }

/* Mobil: 2 stĺpce, popis len krátky názov */
@media (max-width: 599px) {
	.ref-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.6rem; }
	.ref-item__btn { border-radius: var(--radius-sm); }
	.ref-item__info { padding: 0.7rem; gap: 0.1rem; }
	.ref-item__cat, .ref-item__sub { display: none; }
	.ref-item__title { font-size: 0.85rem; }
}