/*
Theme Name: IA na Enfermagem
Theme URI: https://ianaenfermagem.com.br
Author: Artifícia
Author URI: https://artificia.com.br
Description: Tema customizado para o portal IA na Enfermagem - Transformando o cuidado em saúde
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: ianaenfermagem
*/

/* ==============================
   CSS VARIABLES (Brandbook)
   ============================== */
:root {
    --azul-principal: #1E5F8C;
    --teal-principal: #4ECDC4;
    --branco: #FFFFFF;
    --cinza-claro: #F3F4F6;
    --cinza-medio: #6B7280;
    --cinza-escuro: #111827;
    --font-stack: "Inter", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==============================
   RESET & BASE
   ============================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-stack);
    font-size: 16px;
    line-height: 1.6;
    color: var(--cinza-escuro);
    background-color: var(--branco);
    font-weight: 400;
}

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

a {
    color: var(--azul-principal);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--teal-principal);
}

/* ==============================
   TYPOGRAPHY (Brandbook)
   ============================== */
h1, .h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--azul-principal);
    letter-spacing: -0.02em;
}

h2, .h2 {
    font-size: 30px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--azul-principal);
}

h3, .h3 {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--cinza-escuro);
}

h4, .h4 {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--cinza-escuro);
}

h5, .h5 {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--cinza-medio);
}

h6, .h6 {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.5;
    color: var(--cinza-medio);
}

p {
    margin-bottom: 1em;
    color: var(--cinza-escuro);
}

.caption {
    font-size: 14px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--cinza-medio);
}

/* ==============================
   LAYOUT
   ============================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.container--narrow {
    max-width: 800px;
}

.section {
    padding: 80px 0;
}

.section--gray {
    background-color: var(--cinza-claro);
}

/* ==============================
   HEADER / NAVIGATION
   ============================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--branco);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    backdrop-filter: blur(12px);
    background: rgba(255,255,255,0.95);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0;
}

.site-logo img,
.site-logo svg {
    height: 44px;
    width: auto;
}

.nav-primary {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-primary ul {
    display: flex;
    list-style: none;
    gap: 4px;
    align-items: center;
}

.nav-primary a {
    display: block;
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--cinza-escuro);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-primary a:hover,
.nav-primary .current-menu-item a {
    color: var(--azul-principal);
    background: rgba(30, 95, 140, 0.06);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: var(--azul-principal);
    color: var(--branco) !important;
    font-weight: 600;
    font-size: 14px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-cta:hover {
    background: var(--teal-principal);
    color: var(--branco) !important;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--cinza-escuro);
    margin: 5px 0;
    transition: var(--transition);
    border-radius: 2px;
}

/* ==============================
   HERO SECTION
   ============================== */
.hero {
    position: relative;
    padding: 100px 0 80px;
    background: var(--azul-principal);
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: var(--teal-principal);
    border-radius: 50%;
    opacity: 0.08;
}

.hero::after {
    content: "";
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: var(--teal-principal);
    border-radius: 50%;
    opacity: 0.06;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(78, 205, 196, 0.15);
    border: 1px solid rgba(78, 205, 196, 0.3);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    color: var(--teal-principal);
    margin-bottom: 24px;
}

.hero h1 {
    color: var(--branco);
    font-size: 52px;
    margin-bottom: 20px;
}

.hero p {
    color: rgba(255,255,255,0.85);
    font-size: 18px;
    line-height: 1.7;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ==============================
   BUTTONS
   ============================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1;
}

.btn--primary {
    background: var(--teal-principal);
    color: var(--azul-principal);
}

.btn--primary:hover {
    background: #3dbdb4;
    color: var(--azul-principal);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(78, 205, 196, 0.35);
}

.btn--outline {
    background: transparent;
    color: var(--branco);
    border-color: rgba(255,255,255,0.3);
}

.btn--outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.5);
    color: var(--branco);
}

.btn--blue {
    background: var(--azul-principal);
    color: var(--branco);
}

.btn--blue:hover {
    background: #174d73;
    color: var(--branco);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(30, 95, 140, 0.35);
}

/* ==============================
   CARDS
   ============================== */
.card {
    background: var(--branco);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0,0,0,0.06);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(78, 205, 196, 0.3);
}

.card-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: var(--azul-principal);
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.card:hover .card-image img {
    transform: scale(1.05);
}

.card-image .category-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 4px 12px;
    background: var(--teal-principal);
    color: var(--azul-principal);
    font-size: 12px;
    font-weight: 600;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-body {
    padding: 24px;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 13px;
    color: var(--cinza-medio);
}

.card-meta svg {
    width: 14px;
    height: 14px;
}

.card-title {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 10px;
    color: var(--cinza-escuro);
}

.card-title a {
    color: inherit;
}

.card-title a:hover {
    color: var(--azul-principal);
}

.card-excerpt {
    font-size: 15px;
    color: var(--cinza-medio);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--azul-principal);
}

.card-link:hover {
    color: var(--teal-principal);
    gap: 10px;
}

/* ==============================
   POSTS GRID
   ============================== */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.posts-grid--2col {
    grid-template-columns: repeat(2, 1fr);
}

.featured-post .card {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.featured-post .card-image {
    aspect-ratio: auto;
    min-height: 350px;
}

/* ==============================
   FEATURES / PILLARS
   ============================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    text-align: center;
    padding: 40px 32px;
    background: var(--branco);
    border-radius: var(--radius);
    border: 1px solid rgba(0,0,0,0.06);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(78, 205, 196, 0.3);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 16px;
    margin-bottom: 20px;
    font-size: 28px;
}

.feature-icon--blue {
    background: rgba(30, 95, 140, 0.1);
    color: var(--azul-principal);
}

.feature-icon--teal {
    background: rgba(78, 205, 196, 0.15);
    color: var(--teal-principal);
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 15px;
    color: var(--cinza-medio);
    line-height: 1.6;
}

/* ==============================
   SECTION HEADERS
   ============================== */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 48px;
}

.section-header h2 {
    margin-bottom: 12px;
}

.section-header p {
    color: var(--cinza-medio);
    font-size: 17px;
}

.section-header .teal-line {
    display: block;
    width: 48px;
    height: 3px;
    background: var(--teal-principal);
    border-radius: 100px;
    margin: 16px auto 0;
}

/* ==============================
   NEWSLETTER / CTA SECTION
   ============================== */
.cta-section {
    background: var(--azul-principal);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: "";
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: var(--teal-principal);
    border-radius: 50%;
    opacity: 0.08;
}

.cta-section h2 {
    color: var(--branco);
    margin-bottom: 16px;
}

.cta-section p {
    color: rgba(255,255,255,0.8);
    font-size: 17px;
    max-width: 500px;
    margin: 0 auto 32px;
}

.newsletter-form {
    display: flex;
    gap: 12px;
    max-width: 480px;
    margin: 0 auto;
}

.newsletter-form input[type="email"] {
    flex: 1;
    padding: 14px 20px;
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.1);
    color: var(--branco);
    font-size: 15px;
    font-family: var(--font-stack);
    outline: none;
    transition: var(--transition);
}

.newsletter-form input[type="email"]::placeholder {
    color: rgba(255,255,255,0.5);
}

.newsletter-form input[type="email"]:focus {
    border-color: var(--teal-principal);
    background: rgba(255,255,255,0.15);
}

.newsletter-form button {
    padding: 14px 28px;
    background: var(--teal-principal);
    color: var(--azul-principal);
    font-weight: 600;
    font-size: 15px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font-stack);
    transition: var(--transition);
    white-space: nowrap;
}

.newsletter-form button:hover {
    background: #3dbdb4;
    transform: translateY(-1px);
}

/* ==============================
   FOOTER
   ============================== */
.site-footer {
    background: var(--cinza-escuro);
    color: rgba(255,255,255,0.7);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand p {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    line-height: 1.7;
    margin-top: 16px;
}

.footer-brand .site-logo svg path {
    fill: var(--branco);
}

.site-footer h4 {
    color: var(--branco);
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.site-footer ul {
    list-style: none;
}

.site-footer ul li {
    margin-bottom: 10px;
}

.site-footer ul a {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    transition: var(--transition);
}

.site-footer ul a:hover {
    color: var(--teal-principal);
}

.footer-bottom {
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

/* ==============================
   SINGLE POST
   ============================== */
.single-header {
    padding: 60px 0 40px;
    background: var(--cinza-claro);
}

.single-header .category-badge {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(78, 205, 196, 0.15);
    color: var(--azul-principal);
    font-size: 13px;
    font-weight: 600;
    border-radius: 100px;
    margin-bottom: 16px;
}

.single-header h1 {
    font-size: 40px;
    max-width: 800px;
}

.single-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 20px;
    font-size: 14px;
    color: var(--cinza-medio);
}

.single-content {
    padding: 48px 0 80px;
}

.single-content .container {
    max-width: 760px;
}

.single-content h2 {
    margin: 40px 0 16px;
}

.single-content h3 {
    margin: 32px 0 12px;
}

.single-content p {
    margin-bottom: 20px;
    font-size: 17px;
    line-height: 1.8;
    color: #374151;
}

.single-content ul,
.single-content ol {
    margin: 0 0 20px 24px;
    font-size: 17px;
    line-height: 1.8;
    color: #374151;
}

.single-content li {
    margin-bottom: 8px;
}

.single-content blockquote {
    margin: 32px 0;
    padding: 24px 32px;
    border-left: 4px solid var(--teal-principal);
    background: var(--cinza-claro);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 18px;
    font-style: italic;
    color: var(--azul-principal);
}

.single-content img {
    border-radius: var(--radius);
    margin: 32px 0;
}

/* ==============================
   SIDEBAR
   ============================== */
.with-sidebar {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 48px;
}

.sidebar .widget {
    margin-bottom: 32px;
    padding: 24px;
    background: var(--cinza-claro);
    border-radius: var(--radius);
}

.sidebar .widget h4 {
    font-size: 16px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--teal-principal);
}

/* ==============================
   PAGINATION
   ============================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 48px;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 12px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    border: 1px solid rgba(0,0,0,0.1);
    transition: var(--transition);
}

.pagination .current {
    background: var(--azul-principal);
    color: var(--branco);
    border-color: var(--azul-principal);
}

.pagination a:hover {
    background: var(--cinza-claro);
    color: var(--azul-principal);
}

/* ==============================
   PAGE HEADER
   ============================== */
.page-header {
    padding: 60px 0;
    background: var(--cinza-claro);
    text-align: center;
}

/* ==============================
   404
   ============================== */
.error-404 {
    text-align: center;
    padding: 100px 0;
}

.error-404 h1 {
    font-size: 120px;
    color: var(--teal-principal);
    line-height: 1;
}

/* ==============================
   RESPONSIVE
   ============================== */
@media (max-width: 1024px) {
    .posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .featured-post .card {
        grid-template-columns: 1fr;
    }
    .with-sidebar {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    h1, .h1 { font-size: 32px; }
    h2, .h2 { font-size: 24px; }
    .hero h1 { font-size: 36px; }
    .section { padding: 48px 0; }

    .nav-primary {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--branco);
        padding: 16px 24px;
        border-bottom: 1px solid rgba(0,0,0,0.06);
        box-shadow: var(--shadow-lg);
    }

    .nav-primary.active {
        display: block;
    }

    .nav-primary ul {
        flex-direction: column;
        gap: 0;
    }

    .nav-primary a {
        padding: 12px 0;
    }

    .menu-toggle {
        display: block;
    }

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

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

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

    .hero { padding: 60px 0 48px; }

    .hero-actions {
        flex-direction: column;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .header-inner { height: 60px; }
    .site-logo img, .site-logo svg { height: 36px; }
}

/* Logo text */
.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}
.site-logo-text {
    font-size: 18px;
    font-weight: 700;
    color: #1E5F8C;
    line-height: 1.2;
}
.site-logo-sub {
    font-size: 11px;
    font-weight: 400;
    color: #6B7280;
    display: block;
    margin-top: 1px;
}
.footer-brand .site-logo-text {
    color: #FFFFFF;
}
.footer-brand .site-logo-sub {
    color: rgba(255,255,255,0.5);
}
/* Hero highlight */
.hero h1 .highlight {
    color: #4ECDC4;
}
/* Features section padding */
.features-section {
    padding: 80px 0;
    background: #F3F4F6;
}
/* Section action link */
.section-action {
    text-align: center;
    margin-top: 32px;
}
.section-action .btn--outline {
    color: #1E5F8C;
    border-color: #1E5F8C;
}
.section-action .btn--outline:hover {
    background: #1E5F8C;
    color: #FFFFFF;
}
/* Card placeholder icon */
.card-image > a > div {
    min-height: 200px;
}
/* Header scrolled state */
.site-header.scrolled {
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
}

/* Card body spacing fix */
.card-body {
    padding: 28px 24px;
}

.card-body .card-title {
    margin-bottom: 14px;
}

.card-body .card-excerpt {
    margin-bottom: 20px;
}

.card-body .card-meta {
    margin-bottom: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(0,0,0,0.06);
}

.card-body .card-link {
    margin-top: 4px;
}

/* Date format fix */
.card-meta span {
    font-size: 13px;
    color: var(--cinza-medio);
}

/* Contact Form */
.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: start;
}
.contact-form .form-group {
    margin-bottom: 20px;
}
.contact-form label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #111827;
    margin-bottom: 6px;
}
.contact-form input,
.contact-form textarea,
.contact-form select {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid rgba(0,0,0,0.12);
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
    transition: all 0.3s;
    background: #fff;
}
.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
    outline: none;
    border-color: #4ECDC4;
    box-shadow: 0 0 0 3px rgba(78,205,196,0.15);
}
.contact-form textarea {
    min-height: 150px;
    resize: vertical;
}
.contact-form .btn {
    width: 100%;
}
.contact-info-card {
    padding: 24px;
    background: #F3F4F6;
    border-radius: 12px;
    margin-bottom: 16px;
}
.contact-info-card h4 {
    font-size: 15px;
    color: #111827;
    margin-bottom: 8px;
}
.contact-info-card p,
.contact-info-card a {
    font-size: 14px;
    color: #6B7280;
}
.contact-info-card a:hover {
    color: #1E5F8C;
}
/* About page */
.about-mission {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}
.about-mission p {
    font-size: 18px;
    line-height: 1.8;
    color: #374151;
}
.about-vision {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}
/* Archive header */
.archive-header {
    padding: 60px 0;
    background: #F3F4F6;
}
.archive-header h1 {
    margin-bottom: 12px;
}
.archive-header p {
    color: #6B7280;
    font-size: 17px;
    max-width: 600px;
    margin: 0 auto;
}
/* Single post hero */
.single-hero {
    padding: 80px 0 60px;
    background: #1E5F8C;
    position: relative;
    overflow: hidden;
}
.single-hero::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: #4ECDC4;
    border-radius: 50%;
    opacity: 0.06;
}
.single-hero .category-badge {
    position: static;
    display: inline-block;
    margin-bottom: 16px;
}
.single-hero h1 {
    color: #fff;
    font-size: 38px;
    max-width: 800px;
    margin-bottom: 20px;
}
.single-hero .single-meta {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    display: flex;
    gap: 20px;
    margin-top: 0;
}
/* Post navigation */
.post-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    padding: 48px 0;
    border-top: 1px solid rgba(0,0,0,0.06);
}
.post-navigation a {
    padding: 20px 24px;
    background: #F3F4F6;
    border-radius: 12px;
    display: block;
    transition: all 0.3s;
}
.post-navigation a:hover {
    background: rgba(78,205,196,0.1);
}
.post-navigation .nav-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #6B7280;
    margin-bottom: 4px;
}
.post-navigation .nav-title {
    font-size: 15px;
    font-weight: 600;
    color: #111827;
}
.post-navigation .next-post {
    text-align: right;
}
/* Related posts */
.related-posts {
    padding: 64px 0;
    background: #F3F4F6;
}
@media (max-width: 768px) {
    .contact-grid { grid-template-columns: 1fr; }
    .post-navigation { grid-template-columns: 1fr; }
    .single-hero h1 { font-size: 28px; }
}

/* ==============================
   SINGLE POST - Professional
   ============================== */

/* Meta items with icons */
.single-hero .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.single-hero .meta-item svg {
    opacity: 0.7;
}

/* Table of Contents */
.article-toc {
    background: var(--cinza-claro);
    border-radius: var(--radius);
    padding: 24px 28px;
    margin-bottom: 40px;
    border-left: 4px solid var(--teal-principal);
}
.article-toc h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--azul-principal);
    margin-bottom: 12px;
}
.article-toc ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
.article-toc ul li {
    margin-bottom: 6px;
}
.article-toc ul li a {
    font-size: 14px;
    color: var(--cinza-medio);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
}
.article-toc ul li a::before {
    content: "";
    width: 6px;
    height: 6px;
    background: var(--teal-principal);
    border-radius: 50%;
    flex-shrink: 0;
}
.article-toc ul li a:hover {
    color: var(--azul-principal);
}

/* Content body */
.content-body {
    font-size: 17px;
    line-height: 1.8;
    color: #374151;
}
.content-body h2 {
    margin: 48px 0 20px;
    padding-top: 24px;
    border-top: 1px solid rgba(0,0,0,0.06);
    font-size: 26px;
}
.content-body h2:first-child {
    border-top: none;
    margin-top: 0;
    padding-top: 0;
}
.content-body h3 {
    margin: 32px 0 14px;
    font-size: 20px;
}
.content-body p {
    margin-bottom: 20px;
}
.content-body ul, .content-body ol {
    margin: 0 0 24px 24px;
}
.content-body li {
    margin-bottom: 10px;
    line-height: 1.7;
}
.content-body blockquote {
    margin: 32px 0;
    padding: 24px 28px;
    background: var(--cinza-claro);
    border-left: 4px solid var(--teal-principal);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 18px;
    font-style: italic;
    color: var(--azul-principal);
    line-height: 1.7;
}
.content-body blockquote p:last-child {
    margin-bottom: 0;
}
.content-body strong {
    color: var(--cinza-escuro);
    font-weight: 600;
}

/* Article Tags */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin: 40px 0 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(0,0,0,0.06);
}
.tags-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--cinza-medio);
}
.tag-pill {
    padding: 4px 14px;
    background: var(--cinza-claro);
    color: var(--cinza-medio);
    font-size: 13px;
    border-radius: 100px;
    transition: var(--transition);
}
.tag-pill:hover {
    background: rgba(78,205,196,0.15);
    color: var(--azul-principal);
}

/* Share Buttons */
.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 24px 0 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(0,0,0,0.06);
}
.share-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--cinza-medio);
}
.share-buttons {
    display: flex;
    gap: 8px;
}
.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--cinza-claro);
    color: var(--cinza-medio);
    transition: var(--transition);
}
.share-btn:hover {
    transform: translateY(-2px);
}
.share-btn--linkedin:hover { background: #0077B5; color: #fff; }
.share-btn--twitter:hover { background: #000; color: #fff; }
.share-btn--whatsapp:hover { background: #25D366; color: #fff; }

/* Author Box (E-E-A-T) */
.author-box {
    display: flex;
    gap: 24px;
    padding: 32px;
    background: var(--cinza-claro);
    border-radius: var(--radius);
    margin: 0 0 48px;
    border: 1px solid rgba(0,0,0,0.04);
}
.author-box__avatar {
    flex-shrink: 0;
}
.author-box__avatar img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--teal-principal);
}
.author-box__label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--teal-principal);
    font-weight: 600;
}
.author-box__name {
    font-size: 20px;
    font-weight: 700;
    color: var(--cinza-escuro);
    margin: 4px 0 10px;
}
.author-box__bio {
    font-size: 14px;
    line-height: 1.7;
    color: var(--cinza-medio);
    margin-bottom: 12px;
}
.author-box__meta {
    display: flex;
    gap: 16px;
}
.author-box__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--azul-principal);
}
.author-box__link:hover {
    color: var(--teal-principal);
}

/* Container narrow */
.container--narrow {
    max-width: 760px;
}

@media (max-width: 768px) {
    .author-box {
        flex-direction: column;
        text-align: center;
        padding: 24px;
    }
    .author-box__avatar {
        align-self: center;
    }
    .author-box__meta {
        justify-content: center;
    }
    .article-share {
        flex-direction: column;
        align-items: flex-start;
    }
}