/* ========================================
   3D Odonto Blog — Portal Style
   Identidade: #7DD6F4 (azul claro), branco, cinza
   Fontes: Poppins + Cormorant Garamond
   ======================================== */

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

:root {
    --blue: #7DD6F4;
    --blue-dark: #5BBDD9;
    --blue-light: #B4E8FA;
    --blue-pale: #E8F7FD;
    --black: #1a1a1a;
    --dark: #2d2d2d;
    --gray-800: #333333;
    --gray-600: #525459;
    --gray-500: #69727D;
    --gray-400: #8a8f98;
    --gray-300: #b0b5bd;
    --gray-200: #d5d8dc;
    --gray-100: #eef0f2;
    --bg: #f5f6f8;
    --white: #ffffff;
    --border: #e2e5ea;
    --font: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 4px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: 0.25s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font);
    color: var(--gray-600);
    background: var(--bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--blue-dark); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--black); }

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

/* ========================================
   NAVBAR — Fundo branco, estilo do site original
   ======================================== */
.navbar {
    background: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-xs);
}

.navbar-inner {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.navbar-logo { display: flex; align-items: center; }
.navbar-logo img { height: 40px; width: auto; }

.navbar-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.navbar-links a {
    color: var(--gray-800);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition);
    position: relative;
}

.navbar-links a.active { color: var(--blue-dark); }

.navbar-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--blue);
    transition: width var(--transition);
}

.navbar-links a:hover { color: var(--blue-dark); }
.navbar-links a:hover::after,
.navbar-links a.active::after { width: 100%; }

.btn-agendar {
    background: linear-gradient(135deg, var(--blue-light), var(--blue));
    color: var(--black) !important;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.88rem;
    transition: all var(--transition);
    box-shadow: 0 2px 8px rgba(125,214,244,0.3);
}

.btn-agendar::after { display: none !important; }
.btn-agendar:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(125,214,244,0.4);
    color: var(--black) !important;
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.navbar-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--gray-800);
    margin: 5px 0;
    transition: var(--transition);
    border-radius: 2px;
}

/* ========================================
   PORTAL HERO — Compacto, estilo magazine
   ======================================== */
.portal-hero {
    background: linear-gradient(135deg, #f0faff 0%, var(--blue-pale) 50%, #f0f8ff 100%);
    padding: 40px 24px;
    border-bottom: 1px solid var(--border);
}

.portal-hero-inner {
    max-width: 1240px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 28px;
    align-items: center;
}

.portal-hero-main {
    position: relative;
}

.portal-hero-badge {
    display: inline-block;
    background: var(--blue);
    color: var(--white);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 14px;
}

.portal-hero-main h1 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--black);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 12px;
}

.portal-hero-main p {
    color: var(--gray-500);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

.portal-hero-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--blue-dark);
    font-weight: 600;
    font-size: 0.9rem;
}

.portal-hero-link:hover { gap: 10px; color: var(--black); }

.portal-hero-side {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.hero-side-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 16px 18px;
    display: flex;
    gap: 14px;
    align-items: flex-start;
    border: 1px solid var(--border);
    transition: all var(--transition);
    box-shadow: var(--shadow-xs);
}

.hero-side-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--blue-light);
    transform: translateX(4px);
}

.hero-side-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    background: var(--blue-pale);
    color: var(--blue-dark);
}

.hero-side-card h3 {
    font-size: 0.88rem;
    color: var(--black);
    font-weight: 600;
    margin-bottom: 2px;
    line-height: 1.3;
}

.hero-side-card h3 a { color: inherit; }
.hero-side-card h3 a:hover { color: var(--blue-dark); }

.hero-side-card p {
    font-size: 0.78rem;
    color: var(--gray-400);
}

/* ========================================
   PORTAL LAYOUT — Grid com sidebar
   ======================================== */
.portal-body {
    max-width: 1240px;
    margin: 0 auto;
    padding: 32px 24px;
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 32px;
}

.portal-main {}

.portal-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Section headers */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--blue);
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--black);
    font-weight: 700;
}

.section-header a {
    font-size: 0.82rem;
    color: var(--blue-dark);
    font-weight: 500;
}

/* ========================================
   ARTICLE CARDS — Portal grid
   ======================================== */
.portal-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.portal-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

.portal-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--blue-light);
    transform: translateY(-2px);
}

.portal-card-img {
    height: 160px;
    position: relative;
    overflow: hidden;
}

.portal-card-img-bg {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.bg-estetica { background: linear-gradient(135deg, var(--blue-pale), #d4f0fc); }
.bg-implanto { background: linear-gradient(135deg, #e8edf5, #d0d8e8); }
.bg-hof { background: linear-gradient(135deg, #f5e8f0, #e8d4e0); }
.bg-geral { background: linear-gradient(135deg, var(--gray-100), #e5e8ec); }

.portal-card-body {
    padding: 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.portal-card-cat {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--blue-dark);
    margin-bottom: 8px;
}

.portal-card-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    color: var(--black);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 8px;
}

.portal-card-title a { color: inherit; }
.portal-card-title a:hover { color: var(--blue-dark); }

.portal-card-excerpt {
    font-size: 0.85rem;
    color: var(--gray-500);
    line-height: 1.55;
    flex: 1;
    margin-bottom: 14px;
}

.portal-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--gray-400);
    padding-top: 12px;
    border-top: 1px solid var(--gray-100);
}

.portal-card-read {
    color: var(--blue-dark);
    font-weight: 600;
    font-size: 0.8rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.portal-card-read:hover { gap: 8px; color: var(--black); }

/* ========================================
   LIST CARDS — Compact horizontal
   ======================================== */
.list-cards { display: flex; flex-direction: column; gap: 16px; margin-bottom: 40px; }

.list-card {
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    display: grid;
    grid-template-columns: 140px 1fr;
    overflow: hidden;
    transition: all var(--transition);
}

.list-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--blue-light);
}

.list-card-img {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.list-card-body { padding: 16px 18px; }

.list-card-cat {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--blue-dark);
    margin-bottom: 4px;
}

.list-card-title {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    color: var(--black);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 6px;
}

.list-card-title a { color: inherit; }
.list-card-title a:hover { color: var(--blue-dark); }

.list-card-meta {
    font-size: 0.75rem;
    color: var(--gray-400);
}

/* ========================================
   SIDEBAR WIDGETS
   ======================================== */
.sidebar-widget {
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
}

.sidebar-widget-header {
    padding: 16px 18px;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--black);
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-widget-header .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--blue);
}

/* Popular articles widget */
.sidebar-popular { list-style: none; }

.sidebar-popular li {
    padding: 14px 18px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    gap: 12px;
    align-items: flex-start;
    transition: background var(--transition);
}

.sidebar-popular li:last-child { border-bottom: none; }
.sidebar-popular li:hover { background: var(--blue-pale); }

.sidebar-popular .num {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--blue);
    line-height: 1;
    min-width: 24px;
}

.sidebar-popular .title {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-800);
    line-height: 1.4;
}

.sidebar-popular .title a { color: inherit; }
.sidebar-popular .title a:hover { color: var(--blue-dark); }

.sidebar-popular .meta {
    font-size: 0.72rem;
    color: var(--gray-400);
    margin-top: 2px;
}

/* Categories widget */
.sidebar-categories { list-style: none; }

.sidebar-categories li {
    padding: 12px 18px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.88rem;
    color: var(--gray-600);
    transition: all var(--transition);
}

.sidebar-categories li:last-child { border-bottom: none; }
.sidebar-categories li:hover { background: var(--blue-pale); color: var(--black); }

.sidebar-categories .count {
    background: var(--gray-100);
    color: var(--gray-500);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
}

/* CTA widget */
.sidebar-cta {
    background: linear-gradient(135deg, #f0faff, var(--blue-pale));
    border-color: var(--blue-light);
    padding: 24px 20px;
    text-align: center;
}

.sidebar-cta h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--black);
    margin-bottom: 8px;
}

.sidebar-cta p {
    font-size: 0.84rem;
    color: var(--gray-500);
    margin-bottom: 16px;
    line-height: 1.5;
}

.sidebar-cta .btn-cta {
    display: inline-block;
    background: linear-gradient(135deg, var(--blue-light), var(--blue));
    color: var(--black);
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.88rem;
    transition: all var(--transition);
    box-shadow: 0 2px 10px rgba(125,214,244,0.3);
}

.sidebar-cta .btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(125,214,244,0.4);
    color: var(--black);
}

/* ========================================
   ARTICLE SINGLE PAGE
   ======================================== */
.article-header {
    background: linear-gradient(135deg, #f0faff 0%, var(--blue-pale) 40%, #f7fbff 100%);
    padding: 40px 24px 36px;
    border-bottom: 1px solid var(--border);
}

.article-header-inner {
    max-width: 800px;
    margin: 0 auto;
}

.article-breadcrumbs {
    font-size: 0.8rem;
    color: var(--gray-400);
    margin-bottom: 20px;
}

.article-breadcrumbs a { color: var(--gray-400); }
.article-breadcrumbs a:hover { color: var(--blue-dark); }
.article-breadcrumbs span { margin: 0 6px; }

.article-header-cat {
    display: inline-block;
    background: var(--blue);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-bottom: 14px;
}

.article-header h1 {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    color: var(--black);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
}

.article-header-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    color: var(--gray-400);
    font-size: 0.85rem;
}

.article-header-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Article layout with sidebar */
.article-page-layout {
    max-width: 1100px;
    margin: 0 auto;
    padding: 36px 24px 60px;
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 40px;
}

/* Article Content */
.article-content {
    min-width: 0;
}

.article-content h2 {
    font-family: var(--font-heading);
    font-size: 1.65rem;
    color: var(--black);
    margin: 36px 0 14px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--blue-pale);
    font-weight: 700;
}

.article-content h3 {
    font-size: 1.15rem;
    color: var(--dark);
    margin: 28px 0 10px;
    font-weight: 600;
}

.article-content p {
    margin-bottom: 16px;
    color: var(--gray-600);
    line-height: 1.75;
}

.article-content .lead {
    font-size: 1.1rem;
    color: var(--gray-500);
    line-height: 1.8;
    border-left: 3px solid var(--blue);
    padding-left: 20px;
    margin-bottom: 28px;
    background: var(--blue-pale);
    padding: 18px 20px;
    border-radius: 0 var(--radius) var(--radius) 0;
}

.article-content ul, .article-content ol {
    margin: 0 0 18px 20px;
    color: var(--gray-600);
}

.article-content li { margin-bottom: 6px; line-height: 1.65; }
.article-content strong { color: var(--dark); }

/* Tables */
.table-responsive { overflow-x: auto; margin: 18px 0 26px; }

.article-content table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.article-content thead { background: var(--blue-pale); }
.article-content th {
    color: var(--black);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 0.88rem;
    border-bottom: 2px solid var(--blue-light);
}

.article-content td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.88rem;
}

.article-content tbody tr:hover { background: var(--blue-pale); }

/* CTA Box inside article */
.cta-box {
    background: linear-gradient(135deg, #f0faff, var(--blue-pale));
    border: 1px solid var(--blue-light);
    border-radius: var(--radius-lg);
    padding: 36px;
    text-align: center;
    margin: 36px 0;
}

.cta-box h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--black);
    margin-bottom: 8px;
}

.cta-box p {
    color: var(--gray-500);
    margin-bottom: 18px;
    font-size: 0.95rem;
}

.btn-cta {
    display: inline-block;
    background: linear-gradient(135deg, var(--blue-light), var(--blue));
    color: var(--black) !important;
    padding: 14px 34px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all var(--transition);
    box-shadow: 0 3px 12px rgba(125,214,244,0.3);
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 18px rgba(125,214,244,0.4);
    color: var(--black) !important;
}

/* Article sidebar TOC */
.toc {
    position: sticky;
    top: 86px;
    align-self: start;
}

.toc-title {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--gray-400);
    margin-bottom: 14px;
}

.toc-list { list-style: none; }
.toc-list li { margin-bottom: 8px; }

.toc-list a {
    font-size: 0.84rem;
    color: var(--gray-500);
    display: block;
    padding-left: 14px;
    border-left: 2px solid var(--gray-200);
    transition: all var(--transition);
    line-height: 1.4;
}

.toc-list a:hover,
.toc-list a.active {
    color: var(--blue-dark);
    border-left-color: var(--blue);
}

/* Related Articles */
.related-section {
    background: var(--white);
    border-top: 1px solid var(--border);
    padding: 48px 0;
}

.related-section .container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* ========================================
   FOOTER — Limpo e profissional
   ======================================== */
.footer {
    background: var(--black);
    color: rgba(255,255,255,0.55);
    padding: 48px 24px 24px;
}

.footer-grid {
    max-width: 1240px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 36px;
    margin-bottom: 36px;
}

.footer-brand img { height: 36px; margin-bottom: 12px; filter: brightness(0) invert(1); }

.footer-brand p {
    font-size: 0.84rem;
    line-height: 1.6;
    color: rgba(255,255,255,0.4);
}

.footer h4 {
    color: var(--white);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 16px;
}

.footer-links { list-style: none; }
.footer-links li { margin-bottom: 8px; }
.footer-links a {
    color: rgba(255,255,255,0.45);
    font-size: 0.84rem;
    transition: color var(--transition);
}
.footer-links a:hover { color: var(--blue-light); }

.footer-bottom {
    max-width: 1240px;
    margin: 0 auto;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.78rem;
}

.footer-social { display: flex; gap: 14px; }
.footer-social a {
    color: rgba(255,255,255,0.35);
    transition: color var(--transition);
}
.footer-social a:hover { color: var(--blue-light); }

/* ========================================
   WHATSAPP FLOAT
   ======================================== */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999;
    width: 56px;
    height: 56px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 3px 16px rgba(37,211,102,0.35);
    transition: all var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.08);
    box-shadow: 0 5px 20px rgba(37,211,102,0.45);
}

.whatsapp-float svg { width: 28px; height: 28px; fill: #fff; }

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .portal-body { grid-template-columns: 1fr; }
    .portal-sidebar { display: none; }
    .article-page-layout { grid-template-columns: 1fr; }
    .toc { display: none; }
    .portal-hero-inner { grid-template-columns: 1fr; }
    .portal-hero-side { flex-direction: row; overflow-x: auto; }
    .hero-side-card { min-width: 260px; }
}

@media (max-width: 768px) {
    .navbar-links { display: none; }
    .navbar-toggle { display: block; }

    .navbar-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        padding: 20px 24px;
        gap: 14px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
    }

    .portal-hero { padding: 28px 20px; }
    .portal-hero-main h1 { font-size: 1.7rem; }
    .portal-hero-side { display: none; }

    .portal-grid { grid-template-columns: 1fr; }
    .list-card { grid-template-columns: 100px 1fr; }

    .article-header h1 { font-size: 1.7rem; }
    .article-header-meta { flex-wrap: wrap; }

    .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
    .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }

    .related-grid { grid-template-columns: 1fr; }

    .cta-box { padding: 24px 18px; }
}

@media (max-width: 480px) {
    .portal-hero-main h1 { font-size: 1.4rem; }
    .article-header h1 { font-size: 1.4rem; }
    .footer-grid { grid-template-columns: 1fr; }
    .list-card { grid-template-columns: 1fr; }
    .list-card-img { height: 120px; }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.portal-card, .list-card { animation: fadeIn 0.4s ease-out backwards; }
.portal-card:nth-child(1), .list-card:nth-child(1) { animation-delay: 0.05s; }
.portal-card:nth-child(2), .list-card:nth-child(2) { animation-delay: 0.1s; }
.portal-card:nth-child(3), .list-card:nth-child(3) { animation-delay: 0.15s; }
.portal-card:nth-child(4), .list-card:nth-child(4) { animation-delay: 0.2s; }

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