/**
 * Tenuta Cà Vecchia - Main Theme Stylesheet
 * Minimal, responsive, elegant design matching tenutacavecchia.com
 * White aesthetic with minimal typography, fluid zoom and auto-filling gallery rows.
 *
 * @version 1.1.0
 */

/* ==========================================================================
   1. CSS Custom Properties & Base Reset (Tonalità Neutre / Senza Violetto)
   ========================================================================== */
:root {
    --cavecchia-bg: #ffffff;
    --cavecchia-color: #111111;        /* Nero carbone morbido ed elegante */
    --cavecchia-muted: #666666;        /* Grigio neutro raffinato */
    --cavecchia-accent: #111111;
    --cavecchia-border: #111111;
    --cavecchia-font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --cavecchia-content-max-width: 44rem; /* ~704px come da layout originale */
    --cavecchia-gallery-gap: 5px;         /* Spaziatura ultra-compatta e raffinata */
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body.cavecchia-landing-body {
    background-color: var(--cavecchia-bg);
    color: var(--cavecchia-color);
    font-family: var(--cavecchia-font-main);
    font-size: clamp(0.95rem, 0.9rem + 0.25vw, 1.125rem);
    line-height: 1.6;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Prevenzione scroll quando lightbox è aperto */
body.lightbox-open {
    overflow: hidden;
    touch-action: none;
}

/* ==========================================================================
   2. Layout & Spacing
   ========================================================================== */
.site-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    width: 100%;
}

.site-main {
    flex: 1 0 auto;
    width: 100%;
    display: flex;
    justify-content: center;
}

.cavecchia-container {
    width: 100%;
    max-width: var(--cavecchia-content-max-width);
    padding-left: clamp(1rem, 4vw, 2rem);
    padding-right: clamp(1rem, 4vw, 2rem);
    margin-left: auto;
    margin-right: auto;
}

.cavecchia-spacer-top {
    height: clamp(50px, 8vw, 100px);
    width: 100%;
}

.cavecchia-spacer-bottom {
    height: clamp(60px, 10vw, 120px);
    width: 100%;
}

/* ==========================================================================
   3. Typography & Hero Section
   ========================================================================== */
.cavecchia-hero {
    text-align: center;
    margin-bottom: 2rem;
}

.cavecchia-title {
    font-family: var(--cavecchia-font-main);
    font-size: clamp(1.85rem, 1.5rem + 2.5vw, 3.25rem);
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.2;
    color: var(--cavecchia-color);
    margin-bottom: clamp(0.75rem, 2vw, 1.25rem);
    text-wrap: balance;
}

.cavecchia-address {
    font-family: var(--cavecchia-font-main);
    font-size: clamp(1.15rem, 1rem + 1.2vw, 1.75rem);
    font-weight: 600;
    letter-spacing: -0.015em;
    line-height: 1.35;
    color: var(--cavecchia-color);
    margin-bottom: clamp(1rem, 2.5vw, 1.5rem);
    text-wrap: balance;
}

.cavecchia-notice {
    font-family: var(--cavecchia-font-main);
    font-size: clamp(1.15rem, 1rem + 1.2vw, 1.75rem);
    font-weight: 700;
    font-style: italic;
    letter-spacing: -0.015em;
    line-height: 1.35;
    color: var(--cavecchia-color);
    margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
    text-wrap: balance;
}

/* Separatore decorativo centrato da 100px */
.cavecchia-divider {
    border: none;
    border-bottom: 2px solid var(--cavecchia-border);
    width: 100px;
    margin: clamp(1.5rem, 3vw, 2.5rem) auto;
    opacity: 0.9;
}

/* ==========================================================================
   4. Sezione Contatti
   ========================================================================== */
.cavecchia-contact {
    text-align: center;
    margin-bottom: 2rem;
}

.cavecchia-contact-label {
    font-family: var(--cavecchia-font-main);
    font-size: clamp(1.2rem, 1rem + 0.8vw, 1.6rem);
    font-weight: 600;
    letter-spacing: -0.015em;
    line-height: 1.3;
    color: var(--cavecchia-color);
    margin-bottom: 0.75rem;
}

.cavecchia-contact-item {
    margin-bottom: 0.5rem;
}

.cavecchia-tel-link,
.cavecchia-mail-link {
    display: inline-block;
    color: var(--cavecchia-color);
    font-size: clamp(1.05rem, 0.95rem + 0.4vw, 1.25rem);
    font-weight: 400;
    text-decoration: none;
    transition: opacity 0.2s ease, text-decoration 0.2s ease;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.cavecchia-tel-link:hover,
.cavecchia-tel-link:focus,
.cavecchia-mail-link:hover,
.cavecchia-mail-link:focus {
    text-decoration: underline;
    opacity: 0.75;
}

/* ==========================================================================
   5. Galleria Fotografica: Riempimento Intelligente della Riga
   ========================================================================== */
.cavecchia-gallery-section {
    width: 100%;
    margin-top: 1rem;
}

/* Layout Flexbox che garantisce il riempimento completo di ogni riga */
.cavecchia-gallery-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--cavecchia-gallery-gap);
    width: 100%;
}

/* Ciascun elemento ha base a 4 colonne, ma cresce (flex-grow: 1)
   per riempire al 100% la riga se rimangono 1, 2 o 3 immagini */
.cavecchia-gallery-item {
    position: relative;
    margin: 0;
    padding: 0;
    flex: 1 1 calc(25% - var(--cavecchia-gallery-gap));
    min-width: calc(25% - var(--cavecchia-gallery-gap));
    max-width: 100%;
}

/* Contenitore interno immagine con altezza uniforme ed elegante */
.gallery-item-inner {
    position: relative;
    width: 100%;
    height: clamp(140px, 17vw, 185px);
    border: 2px solid #ffffff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
    background-color: #f7f7f7;
    overflow: hidden;
    cursor: pointer;
    border-radius: 2px;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.gallery-item-inner:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.cavecchia-img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.gallery-item-inner:hover .cavecchia-img {
    transform: scale(1.04);
}

/* Pulsante Trigger Lightbox (Icona Minimal su Sfondo Bianco Trasparente) */
.cavecchia-lightbox-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 4px;
    color: var(--cavecchia-color);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.25s ease, background-color 0.2s ease, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), color 0.2s ease;
    z-index: 2;
    padding: 0;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

.gallery-item-inner:hover .cavecchia-lightbox-btn,
.cavecchia-gallery-item:focus-within .cavecchia-lightbox-btn {
    opacity: 1;
}

.cavecchia-lightbox-btn:hover {
    background-color: #ffffff;
    color: #000000;
    transform: scale(1.08);
}

.cavecchia-lightbox-btn svg {
    display: block;
}

/* Empty Gallery Helper */
.cavecchia-empty-gallery {
    text-align: center;
    padding: 3rem 1.5rem;
    border: 2px dashed #ddd;
    border-radius: 8px;
    color: var(--cavecchia-muted);
    font-size: 0.95rem;
}

/* ==========================================================================
   6. Lightbox Modale: Stile Bianco Minimal con Animazione Fluida
   ========================================================================== */
.cavecchia-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.cavecchia-lightbox.is-active {
    opacity: 1;
    visibility: visible;
}

/* Sfondo Bianco Luminoso & Sfocato (Senza Violetto) */
.lightbox-scrim {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    cursor: zoom-out;
}

.lightbox-dialog {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    padding: clamp(16px, 4vw, 48px);
    pointer-events: none;
}

.lightbox-content {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    max-width: 90vw;
    max-height: 86vh;
    pointer-events: auto;
}

.lightbox-img-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 6px solid #ffffff;
    border-radius: 4px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
    background-color: #ffffff;
    overflow: hidden;
}

.lightbox-main-img {
    max-width: 86vw;
    max-height: 76vh;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
    transform: scale(0.92);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.32s cubic-bezier(0.16, 1, 0.3, 1);
    user-select: none;
    -webkit-user-drag: none;
}

.cavecchia-lightbox.is-active .lightbox-main-img {
    transform: scale(1);
    opacity: 1;
}

/* Transizione morbida di cross-fade durante il cambio immagine */
.lightbox-main-img.is-switching {
    opacity: 0.2;
    transform: scale(0.97);
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.18s ease;
}

.lightbox-caption {
    margin-top: 12px;
    color: var(--cavecchia-color);
    font-size: 0.95rem;
    font-weight: 500;
    text-align: center;
    max-width: 80vw;
}

.lightbox-counter {
    margin-top: 6px;
    color: var(--cavecchia-muted);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-align: center;
}

/* Pulsanti Minimal del Lightbox */
.lightbox-btn {
    position: absolute;
    pointer-events: auto;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(0, 0, 0, 0.08);
    color: var(--cavecchia-color);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
    transition: background-color 0.2s ease, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s ease, color 0.2s ease;
    padding: 0;
    z-index: 20;
    outline: none;
}

.lightbox-btn:hover,
.lightbox-btn:focus-visible {
    background: #ffffff;
    color: #000000;
    border-color: rgba(0, 0, 0, 0.18);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.lightbox-close {
    top: clamp(16px, 3vw, 32px);
    right: clamp(16px, 3vw, 32px);
    width: 44px;
    height: 44px;
}

.lightbox-close:hover,
.lightbox-close:focus-visible {
    transform: scale(1.08);
}

.lightbox-prev {
    left: clamp(16px, 3vw, 36px);
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
}

.lightbox-prev:hover,
.lightbox-prev:focus-visible {
    transform: translateY(-50%) scale(1.08);
}

.lightbox-next {
    right: clamp(16px, 3vw, 36px);
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
}

.lightbox-next:hover,
.lightbox-next:focus-visible {
    transform: translateY(-50%) scale(1.08);
}

/* ==========================================================================
   7. Media Queries (Mobile & Tablet)
   ========================================================================== */
@media (max-width: 768px) {
    .cavecchia-gallery-item {
        flex: 1 1 calc(50% - var(--cavecchia-gallery-gap));
        min-width: calc(50% - var(--cavecchia-gallery-gap));
    }

    .gallery-item-inner {
        height: clamp(140px, 26vw, 210px);
        border-width: 2px;
    }

    .cavecchia-lightbox-btn {
        opacity: 0.9;
        width: 28px;
        height: 28px;
    }

    .lightbox-prev {
        left: 10px;
        width: 42px;
        height: 42px;
    }

    .lightbox-next {
        right: 10px;
        width: 42px;
        height: 42px;
    }

    .lightbox-close {
        top: 14px;
        right: 14px;
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 480px) {
    .cavecchia-gallery-item {
        flex: 1 1 100%;
        min-width: 100%;
    }

    .gallery-item-inner {
        height: 220px;
    }
}