/* assets/css/products.css — Clinical Formulations catalog */

/* ============================================================
   HERO — compact banner that clears the fixed header
   ============================================================ */
.products-hero {
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    color: #fff;
    background: #0c1a36;
    padding-top: var(--site-header-total, 7rem);
    min-height: calc(var(--site-header-total, 7rem) + clamp(220px, 28vh, 300px));
}

.products-hero__media,
.products-hero__veil {
    position: absolute;
    inset: 0;
}

.products-hero__media {
    z-index: 0;
}

.products-hero__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 40%;
    filter: saturate(0.72) contrast(1.06);
    transform: scale(1.03);
    animation: products-hero-drift 16s ease-in-out infinite alternate;
}

.products-hero__veil {
    z-index: 1;
    background:
        linear-gradient(105deg, rgba(12, 26, 54, 0.9) 0%, rgba(17, 41, 89, 0.68) 40%, rgba(27, 97, 121, 0.42) 70%, rgba(42, 165, 150, 0.25) 100%),
        linear-gradient(180deg, rgba(12, 26, 54, 0.45) 0%, transparent 40%, rgba(12, 26, 54, 0.5) 100%);
}

.products-hero__content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding-top: clamp(1.75rem, 3.2vw, 2.5rem);
    padding-bottom: clamp(1.85rem, 3.5vw, 2.65rem);
    animation: products-rise 0.75s var(--ease-premium, cubic-bezier(0.22, 1, 0.36, 1)) both;
}

.products-hero__brand {
    margin: 0 0 0.55rem;
    font-family: var(--font-heading);
    font-size: clamp(1.1rem, 1.8vw, 1.35rem);
    font-weight: 600;
    letter-spacing: -0.015em;
    color: rgba(255, 255, 255, 0.92);
    line-height: 1;
}

.products-hero__title {
    margin: 0 0 0.7rem;
    font-family: var(--font-heading);
    font-size: clamp(1.9rem, 3.8vw, 2.85rem);
    font-weight: 500;
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: #fff;
    max-width: none;
}

.products-hero__lead {
    margin: 0 0 1.35rem;
    max-width: 44ch;
    font-size: clamp(0.92rem, 1.25vw, 1.05rem);
    font-weight: 400;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.82);
}

.products-hero__cta {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.78rem 1.35rem;
    background: #fff;
    color: var(--clr-primary);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.11em;
    text-transform: uppercase;
    transition:
        gap var(--duration-ui) var(--ease-premium),
        background-color var(--duration-ui) var(--ease-premium),
        transform var(--duration-ui) var(--ease-premium);
}

.products-hero__cta:hover {
    gap: 0.75rem;
    background: var(--clr-accent);
    transform: translateY(-1px);
    color: var(--clr-primary);
}

.products-hero__cta svg {
    flex-shrink: 0;
    width: 14px;
    height: 14px;
}

@keyframes products-hero-drift {
    from { transform: scale(1.03) translate3d(0, 0, 0); }
    to   { transform: scale(1.06) translate3d(-0.8%, -0.5%, 0); }
}

@keyframes products-rise {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .products-hero__media img,
    .products-hero__content {
        animation: none;
    }
}

@media (max-width: 720px) {
    .products-hero {
        min-height: calc(var(--site-header-total, 7rem) + 210px);
    }

    .products-hero__content {
        padding-top: 1.5rem;
        padding-bottom: 1.75rem;
    }

    .products-hero__lead {
        margin-bottom: 1.15rem;
    }
}

/* ============================================================
   CATALOG SHELL
   ============================================================ */
.products-catalog {
    position: relative;
    padding: clamp(1.5rem, 3vw, 2.25rem) 0 clamp(1.75rem, 3vw, 2.5rem);
    background:
        radial-gradient(ellipse 70% 45% at 100% 0%, rgba(42, 165, 150, 0.07), transparent 55%),
        radial-gradient(ellipse 55% 40% at 0% 30%, rgba(17, 41, 89, 0.05), transparent 50%),
        var(--clr-bg-canvas, #faf9f7);
}

.catalog-toolbar {
    display: block;
    margin-bottom: 1.1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(17, 41, 89, 0.1);
}

.catalog-toolbar__intro {
    max-width: 38rem;
}

.catalog-kicker {
    display: block;
    margin-bottom: 0.65rem;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--clr-secondary);
}

.catalog-title {
    margin: 0;
    font-size: clamp(1.55rem, 2.8vw, 2.15rem);
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.15;
    color: var(--clr-primary);
}

/* ============================================================
   FILTERS
   ============================================================ */
.catalog-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-bottom: clamp(1.25rem, 2.5vw, 1.75rem);
}

.catalog-filter {
    appearance: none;
    border: 1px solid rgba(17, 41, 89, 0.16);
    background: rgba(255, 255, 255, 0.72);
    color: var(--clr-text-main);
    min-height: 44px;
    padding: 0.7rem 1.05rem;
    font-family: var(--font-body);
    font-size: 0.74rem;
    font-weight: 650;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition:
        background-color var(--duration-ui) var(--ease-premium),
        border-color var(--duration-ui) var(--ease-premium),
        color var(--duration-ui) var(--ease-premium),
        transform var(--duration-ui) var(--ease-premium);
}

.catalog-filter:hover {
    border-color: rgba(17, 41, 89, 0.35);
    color: var(--clr-primary);
    transform: translateY(-1px);
}

.catalog-filter.is-active,
.catalog-filter[aria-pressed="true"] {
    background: var(--gradient-brand);
    border-color: transparent;
    color: #fff;
}

.catalog-filter:focus-visible {
    outline: 2px solid var(--clr-accent-brand);
    outline-offset: 2px;
}

/* ============================================================
   PRODUCT GRID + TILES
   ============================================================ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(1rem, 1.8vw, 1.5rem);
}

.product-tile {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid rgba(17, 41, 89, 0.08);
    overflow: hidden;
    transition:
        border-color var(--duration-card) var(--ease-premium),
        box-shadow var(--duration-card) var(--ease-premium),
        transform var(--duration-card) var(--ease-premium);
    animation: products-tile-in 0.7s var(--ease-premium, cubic-bezier(0.22, 1, 0.36, 1)) both;
}

.product-tile:nth-child(1) { animation-delay: 0.05s; }
.product-tile:nth-child(2) { animation-delay: 0.12s; }
.product-tile:nth-child(3) { animation-delay: 0.19s; }
.product-tile:nth-child(4) { animation-delay: 0.26s; }

.product-tile:hover {
    border-color: rgba(17, 41, 89, 0.16);
    box-shadow: 0 18px 48px rgba(17, 41, 89, 0.1);
    transform: translateY(-4px);
}

.product-tile.is-hidden {
    display: none;
}

.product-tile__media {
    position: relative;
    display: block;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background:
        linear-gradient(160deg, #eef3f7 0%, #f7f4ee 48%, #e8f0f2 100%);
    text-decoration: none;
    color: inherit;
}

.product-tile__glow {
    position: absolute;
    width: 70%;
    aspect-ratio: 1;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(42, 165, 150, 0.22) 0%, rgba(27, 97, 121, 0.08) 42%, transparent 70%);
    pointer-events: none;
    transition: transform var(--duration-image) var(--ease-premium), opacity var(--duration-image) var(--ease-premium);
}

.product-tile__glow--warm {
    background: radial-gradient(circle, rgba(231, 224, 207, 0.55) 0%, rgba(17, 41, 89, 0.08) 45%, transparent 70%);
}

.product-tile:hover .product-tile__glow {
    transform: translate(-50%, -50%) scale(1.12);
    opacity: 0.9;
}

.product-tile__media img {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    padding: 0;
    margin: 0;
    transition: transform var(--duration-image) var(--ease-premium);
}

.product-tile:hover .product-tile__media img {
    transform: scale(1.03);
}

.product-tile__index {
    position: absolute;
    top: 0.75rem;
    left: 0.85rem;
    z-index: 2;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: rgba(17, 41, 89, 0.35);
}

.product-tile__tag {
    position: absolute;
    top: 0.7rem;
    right: 0.7rem;
    z-index: 2;
    padding: 0.3rem 0.55rem;
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--clr-primary);
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(17, 41, 89, 0.08);
    backdrop-filter: blur(6px);
}

.product-tile__body {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    padding: 1rem 1rem 1.1rem;
    gap: 0.4rem;
}

.product-tile__meta {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--clr-secondary);
}

.product-tile__name {
    margin: 0;
    font-size: clamp(1rem, 1.15vw, 1.2rem);
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: var(--clr-primary);
}

.product-tile__name a {
    color: inherit;
    text-decoration: none;
}

.product-tile__name a:hover {
    color: var(--clr-secondary);
}

.product-tile__actives {
    margin: 0;
    font-size: 0.82rem;
    line-height: 1.45;
    color: var(--clr-text-muted);
}

/* Stacked actions: Buy Now primary, View Details secondary */
.product-tile .product-card-actions {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    margin-top: 0.85rem;
    padding-top: 0.9rem;
    border-top: 1px solid rgba(17, 41, 89, 0.08);
    grid-template-columns: unset;
}

.product-tile .product-btn {
    width: 100%;
    min-height: 2.45rem;
    padding: 0.55rem 0.75rem;
    font-size: 0.66rem;
    letter-spacing: 0.09em;
    border-radius: 2px;
}

.product-tile .product-btn-primary {
    order: -1;
    box-shadow: 0 6px 16px rgba(17, 41, 89, 0.14);
}

.product-tile .product-btn-outline {
    background: transparent;
    border-color: rgba(17, 41, 89, 0.16);
}

@keyframes products-tile-in {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .product-tile {
        animation: none;
    }
}

.catalog-empty {
    text-align: center;
    padding: 3.5rem 1rem;
    border: 1px dashed rgba(17, 41, 89, 0.18);
    background: rgba(255, 255, 255, 0.55);
}

.catalog-empty p {
    margin: 0 0 1.25rem;
    color: var(--clr-text-muted);
    font-size: 1rem;
}

.catalog-empty[hidden] {
    display: none;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
    .products-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: clamp(1.15rem, 2.2vw, 1.75rem);
    }
}

@media (max-width: 720px) {
    .products-grid {
        grid-template-columns: 1fr;
        gap: 1.15rem;
    }

    .product-tile:hover {
        transform: none;
    }

    .products-hero__title {
        max-width: none;
    }
}