/* ==========================================================================
   Calcestruzzo Architettonico - Minimal Stone Design
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables
   -------------------------------------------------------------------------- */
:root {
    /* Colors */
    --color-white: #FFFFFF;
    --color-bg: #FAFAFA;
    --color-bg-dark: #1A1A1A;
    --color-text: #1A1A1A;
    --color-text-light: #595959;
    --color-text-inverse: #FFFFFF;
    --color-accent: #B8A07A;
    --color-accent-dark: #9A8562;
    --color-primary: #4A5D3E;
    --color-primary-dark: #3A4A31;
    --color-border: #E5E5E5;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;

    /* Layout */
    --container-max: 1200px;
    --header-height: 80px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* --------------------------------------------------------------------------
   Container
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: var(--font-size-sm);
    font-weight: 500;
    letter-spacing: 0.02em;
    border-radius: 4px;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn--primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn--primary:hover {
    background-color: var(--color-primary-dark);
}

.btn--outline {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-text);
}

.btn--outline:hover {
    background-color: var(--color-text);
    color: var(--color-white);
}

.btn--white {
    background-color: var(--color-white);
    color: var(--color-primary);
}

.btn--white:hover {
    background-color: var(--color-bg);
}

.btn--large {
    padding: 1rem 2.5rem;
    font-size: 1rem;
}

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

.btn--primary:focus-visible {
    outline-color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Skip Link
   -------------------------------------------------------------------------- */
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-sm) var(--space-lg);
    border-radius: 0 0 4px 4px;
    z-index: 9999;
    font-weight: 500;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all var(--transition-base);
}

.header--scrolled {
    box-shadow: var(--shadow-sm);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.header__logo img {
    height: 45px;
    width: auto;
}

.header__nav {
    display: none;
    gap: var(--space-lg);
}

.header__nav a {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
    position: relative;
}

.header__nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-text);
    transition: width var(--transition-base);
}

.header__nav a:hover::after {
    width: 100%;
}

.header__cta {
    display: none;
}

.header__menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 8px;
    border-radius: 4px;
    transition: background-color var(--transition-fast);
}

.header__menu-toggle:hover {
    background-color: var(--color-bg);
}

.header__menu-toggle:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.header__menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    transition: all var(--transition-base);
}

.header__menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.header__menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.header__menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-white);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu__nav {
    display: flex;
    flex-direction: column;
    padding: var(--space-xl) var(--space-md);
}

.mobile-menu__nav a {
    padding: var(--space-sm) 0;
    font-size: var(--font-size-xl);
    font-weight: 500;
    border-bottom: 1px solid var(--color-border);
}

.mobile-menu__nav .btn {
    margin-top: var(--space-lg);
}

/* Desktop */
@media (min-width: 768px) {
    .header__nav {
        display: flex;
    }

    .header__cta {
        display: inline-flex;
    }

    .header__menu-toggle {
        display: none;
    }

    .mobile-menu {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.hero__background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero__background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3), rgba(0,0,0,0.5));
}

.hero__content {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    padding-top: calc(var(--header-height) + var(--space-xl));
    max-width: 900px;
}

.hero__badge {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    background-color: rgba(184, 160, 122, 0.15);
    padding: var(--space-xs) var(--space-md);
    border-radius: 50px;
    margin-bottom: var(--space-md);
}

.hero__title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.hero__subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255,255,255,0.9);
    font-weight: 300;
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.hero__actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    align-items: center;
}

.hero__actions .btn--outline {
    color: var(--color-white);
    border-color: var(--color-white);
}

.hero__actions .btn--outline:hover {
    background-color: var(--color-white);
    color: var(--color-text);
}

.hero__scroll {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--color-white);
    font-size: var(--font-size-sm);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero__scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-white), transparent);
    margin-top: var(--space-xs);
    animation: scroll-hint 1.5s ease-in-out infinite;
}

@keyframes scroll-hint {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.5); opacity: 0.5; }
}

@media (min-width: 768px) {
    .hero__title {
        font-size: var(--font-size-5xl);
    }

    .hero__subtitle {
        font-size: var(--font-size-xl);
    }

    .hero__actions {
        flex-direction: row;
        justify-content: center;
    }
}

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */
.section {
    padding: var(--space-3xl) 0;
}

.section--light {
    background-color: var(--color-bg);
}

.section--dark {
    background-color: var(--color-bg-dark);
    color: var(--color-text-inverse);
}

.section--accent {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
}

.section__header {
    margin-bottom: var(--space-2xl);
}

.section__header--center {
    text-align: center;
}

.section__label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.section--dark .section__label,
.section--accent .section__label {
    color: var(--color-accent);
}

.section__title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    line-height: 1.2;
}

.section__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin-top: var(--space-sm);
    max-width: 600px;
}

.section__header--center .section__subtitle {
    margin-left: auto;
    margin-right: auto;
}

.section--dark .section__subtitle {
    color: rgba(255,255,255,0.7);
}

@media (min-width: 768px) {
    .section {
        padding: var(--space-4xl) 0;
    }

    .section__title {
        font-size: var(--font-size-4xl);
    }
}

/* --------------------------------------------------------------------------
   Features
   -------------------------------------------------------------------------- */
.features {
    display: grid;
    gap: var(--space-xl);
}

.feature {
    text-align: center;
    padding: var(--space-lg);
}

.feature__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: var(--color-white);
    color: var(--color-primary);
    margin-bottom: var(--space-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature:hover .feature__icon {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.feature__text {
    color: var(--color-text-light);
    line-height: 1.7;
}

@media (min-width: 768px) {
    .features {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* --------------------------------------------------------------------------
   Product Intro
   -------------------------------------------------------------------------- */
.product-intro {
    display: grid;
    gap: var(--space-2xl);
    align-items: center;
}

.product-intro__content {
    order: 2;
}

.product-intro__text {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--color-text-light);
}

.product-intro__image {
    order: 1;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

@media (min-width: 768px) {
    .product-intro {
        grid-template-columns: 1fr 1fr;
    }

    .product-intro__content {
        order: 1;
    }

    .product-intro__image {
        order: 2;
    }
}

/* --------------------------------------------------------------------------
   Benefits
   -------------------------------------------------------------------------- */
.benefits {
    display: grid;
    gap: var(--space-md);
}

.benefit {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.benefit__number {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-accent);
    flex-shrink: 0;
}

.benefit__text {
    font-size: var(--font-size-lg);
    line-height: 1.5;
}

@media (min-width: 768px) {
    .benefits {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-lg) var(--space-3xl);
    }
}

/* --------------------------------------------------------------------------
   Services Split
   -------------------------------------------------------------------------- */
.services-split {
    display: grid;
    gap: var(--space-2xl);
    align-items: center;
}

.services-split__text {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
}

.services-list {
    margin-bottom: var(--space-xl);
}

.services-list li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    color: var(--color-text-light);
}

.services-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-primary);
}

.services-split__image {
    display: flex;
    justify-content: center;
}

.services-split__image img {
    max-width: 300px;
}

@media (min-width: 768px) {
    .services-split {
        grid-template-columns: 1fr 1fr;
    }

    .services-split__image img {
        max-width: 400px;
    }
}

/* --------------------------------------------------------------------------
   Stone Samples
   -------------------------------------------------------------------------- */
.stone-samples {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.stone-sample {
    text-align: center;
}

.stone-sample img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: var(--space-sm);
    transition: transform var(--transition-base);
}

.stone-sample:hover img {
    transform: scale(1.03);
}

.stone-sample span {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-light);
}

@media (min-width: 480px) {
    .stone-samples {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 768px) {
    .stone-samples {
        grid-template-columns: repeat(6, 1fr);
        gap: var(--space-lg);
    }
}

/* --------------------------------------------------------------------------
   Gallery
   -------------------------------------------------------------------------- */
.gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
}

.gallery__item {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    aspect-ratio: 4/3;
}

.gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery__item:hover img {
    transform: scale(1.05);
}

.gallery__item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0,0,0,0);
    transition: background-color var(--transition-base);
}

.gallery__item:hover::after {
    background-color: rgba(0,0,0,0.2);
}

@media (min-width: 480px) {
    .gallery {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 768px) {
    .gallery {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-md);
    }
}

/* --------------------------------------------------------------------------
   Testimonials
   -------------------------------------------------------------------------- */
.testimonials {
    display: grid;
    gap: var(--space-lg);
}

.testimonial {
    background-color: var(--color-white);
    padding: var(--space-lg);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.testimonial__quote {
    font-size: var(--font-size-lg);
    font-style: italic;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.testimonial__quote::before {
    content: '"';
    font-size: var(--font-size-3xl);
    color: var(--color-accent);
    line-height: 0;
    vertical-align: bottom;
    margin-right: 4px;
}

.testimonial__author {
    font-size: var(--font-size-sm);
    font-style: normal;
    color: var(--color-text-light);
}

@media (min-width: 768px) {
    .testimonials {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .testimonials {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* --------------------------------------------------------------------------
   CTA Block
   -------------------------------------------------------------------------- */
.cta-block {
    text-align: center;
    padding: var(--space-xl) 0;
}

.cta-block__title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.cta-block__text {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-bottom: var(--space-xl);
}

/* --------------------------------------------------------------------------
   Contacts
   -------------------------------------------------------------------------- */
.contacts-grid {
    display: grid;
    gap: var(--space-2xl);
}

.contact-item {
    margin-bottom: var(--space-md);
}

.contact-item strong {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: 4px;
}

.contact-item a {
    font-size: var(--font-size-xl);
    font-weight: 500;
}

.contact-item a:hover {
    color: var(--color-primary);
}

.contacts-area h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-sm);
}

.contacts-area p {
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
}

.contacts-map {
    max-width: 300px;
    border-radius: 8px;
}

@media (min-width: 768px) {
    .contacts-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background-color: var(--color-bg-dark);
    color: var(--color-text-inverse);
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer__content {
    display: grid;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.footer__brand p {
    color: rgba(255,255,255,0.6);
    margin-top: var(--space-sm);
}

.footer__logo {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer__links h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
    color: var(--color-accent);
}

.footer__links a {
    display: block;
    color: rgba(255,255,255,0.6);
    padding: var(--space-xs) 0;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer__links a:hover {
    color: var(--color-white);
}

.footer__bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer__bottom p {
    font-size: var(--font-size-sm);
    color: rgba(255,255,255,0.4);
}

@media (min-width: 768px) {
    .footer__content {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

/* --------------------------------------------------------------------------
   Lightbox
   -------------------------------------------------------------------------- */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox__image {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 4px;
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
    position: absolute;
    color: var(--color-white);
    font-size: 2rem;
    padding: var(--space-sm);
    transition: opacity var(--transition-fast);
}

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
    opacity: 0.7;
}

.lightbox__close {
    top: var(--space-md);
    right: var(--space-md);
    font-size: 2.5rem;
}

.lightbox__prev {
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__next {
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__counter {
    position: absolute;
    bottom: var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.lightbox__close:focus-visible,
.lightbox__prev:focus-visible,
.lightbox__next:focus-visible {
    outline: 2px solid var(--color-white);
    outline-offset: 2px;
    border-radius: 4px;
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --------------------------------------------------------------------------
   Reduced Motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .fade-in {
        opacity: 1;
        transform: none;
    }

    .hero__scroll-line {
        animation: none;
    }
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
    .header,
    .mobile-menu,
    .lightbox,
    .hero__scroll,
    .btn {
        display: none !important;
    }

    .hero {
        min-height: auto;
        padding: var(--space-lg);
    }

    .hero__background {
        display: none;
    }

    .hero__title,
    .hero__subtitle {
        color: var(--color-text);
    }

    .section {
        padding: var(--space-lg) 0;
        break-inside: avoid;
    }
}