/* Pagina pubblica del partner: apertura con la facciata, sedi, sale, foto.
   Tutto sui token del tema, nessun colore scritto a mano. */

.partner-page {
    padding-bottom: 3rem;
}

/* ---------------------------------------------------------------- apertura */
.partner-hero {
    position: relative;
    display: flex;
    align-items: flex-end;
    min-height: clamp(320px, 46vw, 560px);
    overflow: hidden;
    background: var(--background-alt);
}

/* Sfondo sfocato come sulla pagina del relatore: la foto fa atmosfera, non
   deve competere con il nome. L'inset negativo mangia i bordi slavati che il
   blur crea ai margini. */
.partner-hero__bg {
    position: absolute;
    inset: -6%;
    width: 112%;
    height: 112%;
    object-fit: cover;
    filter: blur(20px);
    z-index: 0;
}

/* Il velo serve al testo, non alla foto: senza, un nome bianco su una
   facciata chiara sparisce. */
.partner-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top,
            rgba(0, 0, 0, .58) 0%,
            rgba(0, 0, 0, .34) 55%,
            rgba(0, 0, 0, .18) 100%);
    z-index: 1;
}

.partner-hero--plain {
    min-height: auto;
    background: linear-gradient(135deg,
            color-mix(in srgb, var(--primary-color) 12%, var(--background-alt)),
            var(--background-alt));
}

.partner-hero--plain::after {
    background: none;
}

.partner-hero__inner {
    position: relative;
    z-index: 2;
    width: 100%;
    padding-top: 3rem;
    padding-bottom: 2.25rem;
    color: #fff;
}

.partner-hero--plain .partner-hero__inner {
    color: var(--text-primary);
    padding-top: 2.5rem;
}

.partner-hero__logo {
    width: clamp(64px, 9vw, 92px);
    height: clamp(64px, 9vw, 92px);
    object-fit: cover;
    border-radius: 16px;
    border: 2px solid rgba(255, 255, 255, .85);
    background: #fff;
    margin-bottom: 1rem;
    display: block;
}

.partner-hero--plain .partner-hero__logo {
    border-color: var(--border-color);
}

.partner-hero__title {
    margin: 0;
    font-size: clamp(1.9rem, 5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.05;
    text-shadow: 0 2px 14px rgba(0, 0, 0, .35);
}

.partner-hero--plain .partner-hero__title {
    text-shadow: none;
}

.partner-hero__meta {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem 1.4rem;
    margin: .8rem 0 0;
    font-size: .98rem;
    opacity: .95;
}

.partner-hero__meta span {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
}

.partner-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    margin-top: 1.4rem;
}

/* Sulla foto il bottone chiaro sparisce: qui è bianco pieno. */
.partner-hero:not(.partner-hero--plain) .partner-hero__actions .btn-outline {
    border-color: rgba(255, 255, 255, .85);
    color: #fff;
}

.partner-hero:not(.partner-hero--plain) .partner-hero__actions .btn-outline:hover {
    background: rgba(255, 255, 255, .16);
}

/* ------------------------------------------------------------------ corpo */
.partner-body {
    padding-top: 2.5rem;
}

.partner-section {
    margin-bottom: 2.75rem;
}

.partner-section__title {
    margin: 0 0 1rem;
    font-size: clamp(1.25rem, 2.4vw, 1.6rem);
    font-weight: 700;
    color: var(--text-primary);
}

/* La presentazione sta in una card sua: bordo del brand e fondo della pagina,
   così stacca dal bianco delle sedi senza sembrare un avviso. */
.partner-about-card {
    padding: clamp(1.25rem, 3vw, 2rem);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-xl);
    background: var(--background-alt);
}

.partner-about {
    margin: 0;
    max-width: none;
    color: var(--text-primary);
    font-size: 1.02rem;
    line-height: 1.7;
    white-space: pre-line;
}

/* ------------------------------------------------------------------- sedi */
.partner-venues {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 330px), 1fr));
    gap: 1.25rem;
}

.partner-venue {
    display: flex;
    flex-direction: column;
    width: 100%;
    /* Una sede sola non deve diventare una fascia larga quanto la pagina. */
    max-width: 640px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--background-alt);
    box-shadow: var(--shadow-sm);
}

.partner-venue__photo {
    width: 100%;
    height: 190px;
    object-fit: cover;
    display: block;
}

.partner-venue__body {
    padding: 1.15rem 1.25rem 1.35rem;
}

.partner-venue__name {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.partner-venue__address {
    margin: .25rem 0 0;
    color: var(--primary-color);
    font-size: .9rem;
}

.partner-rooms {
    list-style: none;
    margin: 1rem 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: .5rem;
}

.partner-room {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: .4rem .7rem;
    padding: .55rem .75rem;
    border-radius: var(--radius-lg, 12px);
    background: color-mix(in srgb, var(--primary-color) 7%, transparent);
    font-size: .9rem;
}

.partner-room__gear {
    color: var(--text-secondary);
}

/* -------------------------------------------------------------- galleria */
.partner-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: .75rem;
}

.partner-gallery__item {
    padding: 0;
    border: 0;
    background: none;
    cursor: zoom-in;
    border-radius: var(--radius-lg, 12px);
    overflow: hidden;
    display: block;
}

.partner-gallery__item:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 3px;
}

.partner-gallery img {
    width: 100%;
    aspect-ratio: 3 / 2;
    object-fit: cover;
    border-radius: var(--radius-lg, 12px);
    border: 1px solid var(--border-color);
    display: block;
    transition: transform 260ms ease;
}

.partner-gallery__item:hover img {
    transform: scale(1.04);
}

/* --------------------------------------------------------------- visore */
.partner-lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(.5rem, 2vw, 1.5rem);
    padding: clamp(1rem, 4vw, 3rem);
    background: rgba(0, 0, 0, .88);
}

.partner-lightbox[hidden] {
    display: none;
}

.partner-lightbox__stage {
    margin: 0;
    max-width: min(1200px, 100%);
    max-height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .75rem;
}

.partner-lightbox__stage img {
    max-width: 100%;
    max-height: 78vh;
    object-fit: contain;
    border-radius: var(--radius-lg, 12px);
    background: var(--background-alt);
}

.partner-lightbox__stage figcaption {
    color: #fff;
    font-size: .95rem;
    opacity: .85;
}

.partner-lightbox__close,
.partner-lightbox__nav {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    flex: 0 0 auto;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, .14);
    color: #fff;
    cursor: pointer;
    transition: background 200ms ease;
}

.partner-lightbox__close:hover,
.partner-lightbox__nav:hover {
    background: var(--primary-color);
}

.partner-lightbox__close:focus-visible,
.partner-lightbox__nav:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

.partner-lightbox__close {
    position: absolute;
    top: clamp(.75rem, 2vw, 1.5rem);
    right: clamp(.75rem, 2vw, 1.5rem);
}

.partner-lightbox__counter {
    position: absolute;
    bottom: clamp(.75rem, 2vw, 1.5rem);
    left: 50%;
    transform: translateX(-50%);
    margin: 0;
    color: #fff;
    font-size: .9rem;
    opacity: .8;
}

@media (max-width: 768px) {

    /* Sul telefono si scorre con il dito: le frecce ruberebbero spazio. */
    .partner-lightbox__nav {
        display: none;
    }

    .partner-lightbox__stage img {
        max-height: 70vh;
    }
}

@media (max-width: 768px) {

    .partner-hero {
        min-height: clamp(260px, 62vw, 380px);
    }

    .partner-venue__photo {
        height: 160px;
    }

    .partner-gallery {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
}