/*
 * RoomUpItalia — Mappa del file CSS
 * Ambito: Design system RoomUpItalia e utility visuali riutilizzabili.
 * Classi utilizzate:
 *   .ru-badge, .ru-card, .ru-card__body, .ru-card__media, .ru-empty-state, .ru-icon--lg, .ru-icon--sm
 *   .ru-icon-button, .ru-listing-gallery, .ru-listing-gallery__main, .ru-listing-gallery__side
 *   .ru-meta, .ru-meta__item, .ru-section-title
 *
 * Regola: aggiungere qui solo selettori appartenenti all’ambito indicato.
 */
:root {
    --ru-primary: #2563eb;
    --ru-primary-dark: #1d4ed8;
    --ru-secondary: #0f172a;
    --ru-accent: #14b8a6;
    --ru-surface: #ffffff;
    --ru-surface-soft: #f8fafc;
    --ru-border: #e2e8f0;
    --ru-text: #0f172a;
    --ru-text-soft: #64748b;
    --ru-success: #15803d;
    --ru-warning: #b45309;
    --ru-danger: #b91c1c;
    --ru-radius-sm: 10px;
    --ru-radius-md: 16px;
    --ru-radius-lg: 24px;
    --ru-shadow-sm: 0 6px 18px rgba(15, 23, 42, .08);
    --ru-shadow-md: 0 18px 45px rgba(15, 23, 42, .12);
}

.ru-icon--sm {
    width: 16px;
    height: 16px;
}

.ru-icon--lg {
    width: 24px;
    height: 24px;
}

.ru-icon-button {
    width: 42px;
    height: 42px;
    display: inline-grid;
    place-items: center;
    border: 1px solid var(--ru-border);
    border-radius: 50%;
    background: var(--ru-surface);
    color: var(--ru-secondary);
    box-shadow: var(--ru-shadow-sm);
    cursor: pointer;
    transition: transform .2s ease, border-color .2s ease, color .2s ease;
}

.ru-icon-button:hover {
    transform: translateY(-2px);
    border-color: #bfdbfe;
    color: var(--ru-primary);
}

.ru-card {
    overflow: hidden;
    border: 1px solid var(--ru-border);
    border-radius: var(--ru-radius-md);
    background: var(--ru-surface);
    box-shadow: var(--ru-shadow-sm);
    transition: transform .22s ease, box-shadow .22s ease;
}

.ru-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--ru-shadow-md);
}

.ru-card__media {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #e2e8f0;
}

.ru-card__media img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transition: transform .35s ease;
}

.ru-card:hover .ru-card__media img {
    transform: scale(1.035);
}

.ru-card__body {
    padding: 18px;
}

.ru-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 14px;
    color: var(--ru-text-soft);
    font-size: .92rem;
}

.ru-meta__item {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.ru-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 32px;
    padding: 6px 10px;
    border-radius: 999px;
    background: #eff6ff;
    color: #1d4ed8;
    font-size: .84rem;
    font-weight: 700;
}

.ru-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--ru-text);
    font-weight: 800;
    letter-spacing: -.02em;
}

.ru-empty-state {
    padding: 48px 24px;
    text-align: center;
    border: 1px dashed #cbd5e1;
    border-radius: var(--ru-radius-md);
    background: var(--ru-surface-soft);
}

.ru-empty-state img {
    width: min(220px, 70%);
    height: auto;
    margin-bottom: 20px;
}

.ru-listing-gallery {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 10px;
    border-radius: var(--ru-radius-lg);
    overflow: hidden;
}

.ru-listing-gallery img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ru-listing-gallery__main {
    min-height: 420px;
}

.ru-listing-gallery__side {
    display: grid;
    grid-template-rows: 1fr 1fr;
    gap: 10px;
}

@media (max-width: 768px) {
    .ru-listing-gallery {
        display: block;
        border-radius: var(--ru-radius-md);
    }

    .ru-listing-gallery__main {
        min-height: auto;
        aspect-ratio: 4 / 3;
    }

    .ru-listing-gallery__side {
        display: none;
    }
}