/*
Theme Name: RegenNews
Theme URI: https://regennews.com.br
Author: RegenNews
Author URI: https://regennews.com.br
Description: Tema oficial do RegenNews — Portal Brasileiro de Medicina Regenerativa
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: regennews
Tags: news, medical, regenerative, portal, custom
*/

/* ============================================================
   VARIÁVEIS CSS — IDENTIDADE VISUAL REGENNEWS
   ============================================================ */
:root {
  /* Cores principais */
  --rn-green:       #009C3B;
  --rn-green-dark:  #007A2F;
  --rn-green-light: #E8F7EE;
  --rn-blue:        #002776;
  --rn-blue-dark:   #001A54;
  --rn-blue-light:  #E6EBF5;
  --rn-yellow:      #FFCC00;
  --rn-yellow-dark: #E6B800;

  /* Neutros */
  --rn-white:       #FFFFFF;
  --rn-gray-bg:     #F5F7F8;
  --rn-gray-border: #E2E6EA;
  --rn-gray-text:   #6C757D;
  --rn-gray-dark:   #495057;
  --rn-grafite:     #1E1E1E;

  /* Tipografia */
  --font-heading:   'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body:      'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-science:   'Merriweather', Georgia, serif;

  /* Escala tipográfica */
  --text-xs:    0.75rem;   /* 12px */
  --text-sm:    0.875rem;  /* 14px */
  --text-base:  1rem;      /* 16px */
  --text-lg:    1.125rem;  /* 18px */
  --text-xl:    1.25rem;   /* 20px */
  --text-2xl:   1.5rem;    /* 24px */
  --text-3xl:   1.875rem;  /* 30px */
  --text-4xl:   2.25rem;   /* 36px */
  --text-5xl:   3rem;      /* 48px */

  /* Espaçamento (base 8px) */
  --space-1:  0.25rem;  /* 4px */
  --space-2:  0.5rem;   /* 8px */
  --space-3:  0.75rem;  /* 12px */
  --space-4:  1rem;     /* 16px */
  --space-5:  1.25rem;  /* 20px */
  --space-6:  1.5rem;   /* 24px */
  --space-8:  2rem;     /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */

  /* Layout */
  --container-max: 1200px;
  --container-wide: 1400px;
  --sidebar-width: 300px;
  --header-height: 64px;

  /* Sombras */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg:  0 10px 15px rgba(0,0,0,.07), 0 4px 6px rgba(0,0,0,.05);
  --shadow-xl:  0 20px 25px rgba(0,0,0,.07), 0 10px 10px rgba(0,0,0,.04);

  /* Bordas */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  16px;
  --radius-full: 9999px;

  /* Transições */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--rn-grafite);
  background-color: var(--rn-gray-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--rn-green);
}

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--rn-grafite);
}

/* ============================================================
   UTILITÁRIOS DE LAYOUT
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.container--wide {
  max-width: var(--container-wide);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-6);
}

.col-8  { grid-column: span 8; }
.col-4  { grid-column: span 4; }
.col-6  { grid-column: span 6; }
.col-3  { grid-column: span 3; }
.col-12 { grid-column: span 12; }

/* ============================================================
   BREAKING NEWS TICKER
   ============================================================ */
.breaking-news {
  background-color: var(--rn-green);
  color: var(--rn-white);
  padding: var(--space-2) 0;
  overflow: hidden;
  position: relative;
}

.breaking-news__inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.breaking-news__label {
  background-color: var(--rn-yellow);
  color: var(--rn-grafite);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  flex-shrink: 0;
}

.breaking-news__ticker {
  flex: 1;
  overflow: hidden;
}

.breaking-news__ticker-inner {
  display: flex;
  gap: var(--space-8);
  animation: ticker-scroll 40s linear infinite;
  white-space: nowrap;
}

.breaking-news__ticker-inner:hover {
  animation-play-state: paused;
}

.breaking-news__item {
  font-size: var(--text-sm);
  font-weight: 500;
}

.breaking-news__item a {
  color: var(--rn-white);
  text-decoration: none;
}

.breaking-news__item a:hover {
  text-decoration: underline;
}

.breaking-news__separator {
  color: var(--rn-yellow);
  font-weight: 700;
}

@keyframes ticker-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  background-color: var(--rn-white);
  border-bottom: 3px solid var(--rn-green);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-6);
}

/* Logo */
.site-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.site-logo__image {
  height: 44px;
  width: auto;
}

.site-logo__text {
  display: flex;
  flex-direction: column;
}

.site-logo__name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 900;
  color: var(--rn-green);
  line-height: 1;
  letter-spacing: -0.02em;
}

.site-logo__tagline {
  font-size: var(--text-xs);
  color: var(--rn-gray-text);
  font-weight: 400;
  line-height: 1;
  margin-top: 2px;
}

/* Busca */
.header-search {
  flex: 1;
  max-width: 400px;
  position: relative;
}

.header-search__input {
  width: 100%;
  padding: var(--space-2) var(--space-10) var(--space-2) var(--space-4);
  border: 1.5px solid var(--rn-gray-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  background-color: var(--rn-gray-bg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.header-search__input:focus {
  border-color: var(--rn-green);
  background-color: var(--rn-white);
  box-shadow: 0 0 0 3px rgba(0, 156, 59, 0.12);
}

.header-search__button {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--rn-gray-text);
  padding: var(--space-1);
  display: flex;
  align-items: center;
}

.header-search__button:hover {
  color: var(--rn-green);
}

/* Ações do header */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

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

.btn--primary:hover {
  background-color: var(--rn-green-dark);
  border-color: var(--rn-green-dark);
  color: var(--rn-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background-color: transparent;
  color: var(--rn-blue);
  border-color: var(--rn-blue);
}

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

.btn--sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
}

/* ============================================================
   NAVEGAÇÃO PRINCIPAL
   ============================================================ */
.main-nav {
  background-color: var(--rn-blue);
}

.main-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.main-nav__list {
  display: flex;
  align-items: center;
}

.main-nav__item {
  position: relative;
}

.main-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.main-nav__link:hover,
.main-nav__item.current-menu-item .main-nav__link {
  color: var(--rn-yellow);
  background-color: rgba(255,255,255,0.08);
}

/* Dropdown */
.main-nav__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--rn-white);
  border-top: 3px solid var(--rn-green);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: var(--shadow-xl);
  min-width: 220px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-base);
  z-index: 100;
}

.main-nav__item:hover .main-nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-nav__dropdown-link {
  display: block;
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  color: var(--rn-grafite);
  border-bottom: 1px solid var(--rn-gray-border);
  transition: all var(--transition-fast);
}

.main-nav__dropdown-link:hover {
  background-color: var(--rn-green-light);
  color: var(--rn-green-dark);
  padding-left: var(--space-6);
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  color: var(--rn-white);
}

/* ============================================================
   BADGE / CATEGORIA TAG
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.badge--green  { background-color: var(--rn-green-light); color: var(--rn-green-dark); }
.badge--blue   { background-color: var(--rn-blue-light); color: var(--rn-blue); }
.badge--yellow { background-color: #FFF8CC; color: #856404; }
.badge--red    { background-color: #FDECEA; color: #C0392B; }
.badge--gray   { background-color: var(--rn-gray-border); color: var(--rn-gray-dark); }

.badge--sponsored {
  background-color: var(--rn-yellow);
  color: var(--rn-grafite);
}

/* ============================================================
   CARDS DE NOTÍCIA
   ============================================================ */
.card {
  background-color: var(--rn-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.card__image-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background-color: var(--rn-gray-border);
}

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

.card:hover .card__image {
  transform: scale(1.04);
}

.card__badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
}

.card__body {
  padding: var(--space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.card__date {
  font-size: var(--text-xs);
  color: var(--rn-gray-text);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.card__reading-time {
  font-size: var(--text-xs);
  color: var(--rn-gray-text);
}

.card__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.3;
  color: var(--rn-grafite);
  transition: color var(--transition-fast);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card:hover .card__title {
  color: var(--rn-green);
}

.card__excerpt {
  font-size: var(--text-sm);
  color: var(--rn-gray-dark);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--rn-gray-border);
  background-color: var(--rn-gray-bg);
}

.card__author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--rn-gray-text);
  font-weight: 500;
}

.card__author-avatar {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  object-fit: cover;
  background-color: var(--rn-green-light);
}

.card__share {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.card__share-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--rn-gray-border);
  color: var(--rn-gray-dark);
  font-size: 12px;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.card__share-btn:hover {
  background-color: var(--rn-green);
  color: var(--rn-white);
}

/* Card em destaque (hero) */
.card--featured {
  position: relative;
  height: 480px;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.card--featured .card__image-wrapper {
  position: absolute;
  inset: 0;
  aspect-ratio: unset;
  height: 100%;
}

.card--featured .card__image-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0,0,0,0.85) 0%,
    rgba(0,0,0,0.4) 50%,
    rgba(0,0,0,0.1) 100%
  );
}

.card--featured .card__body {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-8);
  background: none;
}

.card--featured .card__title {
  color: var(--rn-white);
  font-size: var(--text-3xl);
  -webkit-line-clamp: 3;
}

.card--featured .card__excerpt {
  color: rgba(255,255,255,0.85);
}

.card--featured .card__date {
  color: rgba(255,255,255,0.7);
}

/* Card horizontal (lista) */
.card--horizontal {
  flex-direction: row;
  height: auto;
}

.card--horizontal .card__image-wrapper {
  width: 140px;
  flex-shrink: 0;
  aspect-ratio: unset;
}

.card--horizontal .card__body {
  padding: var(--space-4);
  gap: var(--space-2);
}

.card--horizontal .card__title {
  font-size: var(--text-base);
  -webkit-line-clamp: 2;
}

/* ============================================================
   SEÇÕES DA HOME
   ============================================================ */
.section {
  padding: var(--space-10) 0;
}

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

.section--white {
  background-color: var(--rn-white);
}

.section--green {
  background-color: var(--rn-green);
  color: var(--rn-white);
}

.section--blue {
  background-color: var(--rn-blue);
  color: var(--rn-white);
}

.section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 3px solid var(--rn-green);
}

.section__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--rn-grafite);
  position: relative;
}

.section__title::before {
  content: '';
  position: absolute;
  left: -var(--space-4);
  top: 0;
  bottom: 0;
  width: 4px;
  background-color: var(--rn-green);
  border-radius: var(--radius-full);
}

.section--blue .section__title,
.section--green .section__title {
  color: var(--rn-white);
}

.section__link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--rn-green);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.section--blue .section__link {
  color: var(--rn-yellow);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  background-color: var(--rn-white);
  padding: var(--space-6) 0;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  grid-template-rows: auto auto;
  gap: var(--space-4);
}

.hero__main {
  grid-row: span 2;
}

.hero__secondary {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* ============================================================
   DISCLAIMER MÉDICO
   ============================================================ */
.disclaimer {
  background-color: #FFF8CC;
  border: 1px solid var(--rn-yellow);
  border-left: 4px solid var(--rn-yellow-dark);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.disclaimer__icon {
  font-size: var(--text-xl);
  flex-shrink: 0;
  margin-top: 2px;
}

.disclaimer__text {
  font-size: var(--text-sm);
  color: #856404;
  line-height: 1.5;
}

.disclaimer__text strong {
  font-weight: 700;
  display: block;
  margin-bottom: var(--space-1);
}

/* ============================================================
   DIRETÓRIO DE MÉDICOS
   ============================================================ */
.doctor-search {
  background: linear-gradient(135deg, var(--rn-blue) 0%, var(--rn-blue-dark) 100%);
  padding: var(--space-12) 0;
}

.doctor-search__title {
  color: var(--rn-white);
  font-size: var(--text-3xl);
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--space-2);
}

.doctor-search__subtitle {
  color: rgba(255,255,255,0.75);
  text-align: center;
  font-size: var(--text-lg);
  margin-bottom: var(--space-8);
}

.doctor-search__form {
  display: flex;
  gap: var(--space-3);
  max-width: 700px;
  margin-inline: auto;
  flex-wrap: wrap;
}

.doctor-search__input {
  flex: 1;
  min-width: 200px;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  font-size: var(--text-base);
  outline: none;
  transition: border-color var(--transition-fast);
}

.doctor-search__input:focus {
  border-color: var(--rn-yellow);
}

.doctor-search__btn {
  background-color: var(--rn-yellow);
  color: var(--rn-grafite);
  border: none;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-lg);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 800;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.doctor-search__btn:hover {
  background-color: var(--rn-yellow-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.doctor-search__stats {
  display: flex;
  justify-content: center;
  gap: var(--space-10);
  margin-top: var(--space-8);
}

.doctor-search__stat {
  text-align: center;
  color: var(--rn-white);
}

.doctor-search__stat-number {
  font-size: var(--text-4xl);
  font-weight: 900;
  font-family: var(--font-heading);
  color: var(--rn-yellow);
  display: block;
  line-height: 1;
}

.doctor-search__stat-label {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.75);
  margin-top: var(--space-1);
}

/* Card de médico */
.doctor-card {
  background-color: var(--rn-white);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  transition: all var(--transition-base);
  border: 1.5px solid transparent;
}

.doctor-card:hover {
  border-color: var(--rn-green);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.doctor-card--premium {
  border-color: var(--rn-yellow);
  background: linear-gradient(135deg, #FFFDF0 0%, var(--rn-white) 100%);
}

.doctor-card__avatar {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  object-fit: cover;
  flex-shrink: 0;
  border: 3px solid var(--rn-green-light);
}

.doctor-card__info {
  flex: 1;
}

.doctor-card__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--rn-grafite);
  margin-bottom: var(--space-1);
}

.doctor-card__specialty {
  font-size: var(--text-sm);
  color: var(--rn-green);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.doctor-card__location {
  font-size: var(--text-sm);
  color: var(--rn-gray-text);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.doctor-card__actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

/* ============================================================
   ARTIGOS CIENTÍFICOS
   ============================================================ */
.science-card {
  background-color: var(--rn-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--rn-blue);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  height: 100%;
}

.science-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.science-card__journal {
  font-size: var(--text-xs);
  color: var(--rn-blue);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.science-card__title {
  font-family: var(--font-science);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--rn-grafite);
  line-height: 1.4;
}

.science-card__authors {
  font-size: var(--text-sm);
  color: var(--rn-gray-text);
  font-style: italic;
}

.science-card__abstract {
  font-size: var(--text-sm);
  color: var(--rn-gray-dark);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.science-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  border-top: 1px solid var(--rn-gray-border);
}

.science-card__doi {
  font-size: var(--text-xs);
  color: var(--rn-gray-text);
  font-family: monospace;
}

/* ============================================================
   NEWSLETTER
   ============================================================ */
.newsletter {
  background: linear-gradient(135deg, var(--rn-green) 0%, var(--rn-green-dark) 100%);
  padding: var(--space-12) 0;
  text-align: center;
}

.newsletter__title {
  color: var(--rn-white);
  font-size: var(--text-3xl);
  font-weight: 800;
  margin-bottom: var(--space-3);
}

.newsletter__subtitle {
  color: rgba(255,255,255,0.85);
  font-size: var(--text-lg);
  margin-bottom: var(--space-8);
  max-width: 500px;
  margin-inline: auto;
}

.newsletter__form {
  display: flex;
  gap: var(--space-3);
  max-width: 500px;
  margin-inline: auto;
}

.newsletter__input {
  flex: 1;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  border: none;
  font-size: var(--text-base);
  outline: none;
}

.newsletter__btn {
  background-color: var(--rn-yellow);
  color: var(--rn-grafite);
  border: none;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-lg);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 800;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.newsletter__btn:hover {
  background-color: var(--rn-yellow-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.newsletter__privacy {
  color: rgba(255,255,255,0.65);
  font-size: var(--text-xs);
  margin-top: var(--space-3);
}

/* ============================================================
   EVENTOS
   ============================================================ */
.event-card {
  background-color: var(--rn-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  transition: all var(--transition-base);
}

.event-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.event-card__date-box {
  background-color: var(--rn-blue);
  color: var(--rn-white);
  padding: var(--space-4) var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 80px;
  flex-shrink: 0;
}

.event-card__day {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 900;
  line-height: 1;
}

.event-card__month {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--rn-yellow);
  font-weight: 700;
}

.event-card__body {
  padding: var(--space-4) var(--space-5);
  flex: 1;
}

.event-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.event-card__location {
  font-size: var(--text-sm);
  color: var(--rn-gray-text);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
}

.sidebar__widget {
  background-color: var(--rn-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-6);
}

.sidebar__widget-title {
  background-color: var(--rn-blue);
  color: var(--rn-white);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--space-3) var(--space-5);
}

.sidebar__widget-body {
  padding: var(--space-4) var(--space-5);
}

/* Banner publicitário */
.ad-banner {
  background-color: var(--rn-gray-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--rn-gray-text);
  font-size: var(--text-xs);
  text-align: center;
  overflow: hidden;
  position: relative;
}

.ad-banner--300x250 { width: 300px; height: 250px; }
.ad-banner--300x600 { width: 300px; height: 600px; }
.ad-banner--728x90  { width: 100%; height: 90px; max-width: 728px; }
.ad-banner--970x90  { width: 100%; height: 90px; }

.ad-banner__label {
  position: absolute;
  top: var(--space-1);
  right: var(--space-2);
  font-size: 10px;
  color: var(--rn-gray-text);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================================
   SINGLE POST
   ============================================================ */
.post-header {
  background-color: var(--rn-white);
  padding: var(--space-10) 0 var(--space-6);
  border-bottom: 1px solid var(--rn-gray-border);
}

.post-header__category {
  margin-bottom: var(--space-3);
}

.post-header__title {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 900;
  line-height: 1.15;
  color: var(--rn-grafite);
  margin-bottom: var(--space-4);
  max-width: 800px;
}

.post-header__subtitle {
  font-size: var(--text-xl);
  color: var(--rn-gray-dark);
  line-height: 1.5;
  margin-bottom: var(--space-5);
  max-width: 700px;
}

.post-header__meta {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
  color: var(--rn-gray-text);
  font-size: var(--text-sm);
}

.post-header__author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  color: var(--rn-grafite);
}

.post-header__author-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.post-featured-image {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin: var(--space-6) 0;
}

.post-featured-image__caption {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--rn-gray-text);
  margin-top: var(--space-2);
  font-style: italic;
}

/* Conteúdo do post */
.post-content {
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--rn-grafite);
  max-width: 720px;
}

.post-content p { margin-bottom: var(--space-5); }

.post-content h2 {
  font-size: var(--text-2xl);
  font-weight: 800;
  margin: var(--space-8) 0 var(--space-4);
  color: var(--rn-blue);
  padding-left: var(--space-4);
  border-left: 4px solid var(--rn-green);
}

.post-content h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin: var(--space-6) 0 var(--space-3);
  color: var(--rn-grafite);
}

.post-content a {
  color: var(--rn-green);
  text-decoration: underline;
  text-decoration-color: rgba(0,156,59,0.4);
}

.post-content a:hover {
  color: var(--rn-green-dark);
  text-decoration-color: var(--rn-green-dark);
}

.post-content blockquote {
  background-color: var(--rn-green-light);
  border-left: 4px solid var(--rn-green);
  padding: var(--space-5) var(--space-6);
  margin: var(--space-6) 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--rn-green-dark);
}

.post-content ul, .post-content ol {
  padding-left: var(--space-6);
  margin-bottom: var(--space-5);
}

.post-content ul { list-style: disc; }
.post-content ol { list-style: decimal; }

.post-content li { margin-bottom: var(--space-2); }

.post-content img {
  border-radius: var(--radius-md);
  margin: var(--space-6) 0;
  width: 100%;
}

/* Fonte da notícia */
.post-source {
  background-color: var(--rn-gray-bg);
  border: 1px solid var(--rn-gray-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  margin-top: var(--space-8);
  font-size: var(--text-sm);
  color: var(--rn-gray-text);
}

.post-source__label {
  font-weight: 700;
  color: var(--rn-grafite);
  margin-bottom: var(--space-1);
  display: block;
}

/* Tags do post */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-6) 0;
  padding-top: var(--space-6);
  border-top: 1px solid var(--rn-gray-border);
}

.post-tag {
  padding: var(--space-1) var(--space-3);
  background-color: var(--rn-gray-bg);
  border: 1px solid var(--rn-gray-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--rn-gray-dark);
  transition: all var(--transition-fast);
}

.post-tag:hover {
  background-color: var(--rn-green-light);
  border-color: var(--rn-green);
  color: var(--rn-green-dark);
}

/* Share bar */
.share-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5) 0;
  border-top: 1px solid var(--rn-gray-border);
  border-bottom: 1px solid var(--rn-gray-border);
  margin: var(--space-6) 0;
  flex-wrap: wrap;
}

.share-bar__label {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--rn-grafite);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
}

.share-btn--whatsapp { background-color: #25D366; color: white; }
.share-btn--twitter  { background-color: #1DA1F2; color: white; }
.share-btn--linkedin { background-color: #0A66C2; color: white; }
.share-btn--facebook { background-color: #1877F2; color: white; }
.share-btn--copy     { background-color: var(--rn-gray-border); color: var(--rn-grafite); }

.share-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background-color: var(--rn-grafite);
  color: rgba(255,255,255,0.8);
  padding-top: var(--space-12);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer__brand .site-logo__name {
  font-size: var(--text-2xl);
  color: var(--rn-green);
}

.footer__brand .site-logo__tagline {
  color: rgba(255,255,255,0.6);
}

.footer__description {
  font-size: var(--text-sm);
  line-height: 1.7;
  margin-top: var(--space-4);
  color: rgba(255,255,255,0.65);
}

.footer__social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.footer__social-link {
  width: 36px;
  height: 36px;
  background-color: rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: var(--text-base);
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  background-color: var(--rn-green);
  color: var(--rn-white);
}

.footer__col-title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--rn-white);
  margin-bottom: var(--space-5);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.65);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--rn-green);
}

.footer__bottom {
  padding: var(--space-5) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer__copyright {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
}

.footer__legal-links {
  display: flex;
  gap: var(--space-4);
}

.footer__legal-link {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
  transition: color var(--transition-fast);
}

.footer__legal-link:hover {
  color: rgba(255,255,255,0.8);
}

/* ============================================================
   PAGINAÇÃO
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-8) 0;
}

.pagination__item {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: all var(--transition-fast);
  border: 1.5px solid var(--rn-gray-border);
  color: var(--rn-gray-dark);
  background-color: var(--rn-white);
}

.pagination__item:hover,
.pagination__item--active {
  background-color: var(--rn-green);
  border-color: var(--rn-green);
  color: var(--rn-white);
}

/* ============================================================
   RESPONSIVO
   ============================================================ */
@media (max-width: 1024px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero__grid {
    grid-template-columns: 1fr;
  }
  .hero__main {
    grid-row: span 1;
  }
  .hero__secondary {
    flex-direction: row;
    overflow-x: auto;
  }
  .hero__secondary .card {
    min-width: 280px;
  }
}

@media (max-width: 768px) {
  .main-nav__list {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--rn-blue);
    padding: var(--space-4);
    z-index: 99;
  }

  .main-nav__list.is-open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .header-search {
    display: none;
  }

  .header-search.is-open {
    display: block;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    padding: var(--space-3) var(--space-4);
    background-color: var(--rn-white);
    border-bottom: 1px solid var(--rn-gray-border);
    max-width: 100%;
  }

  .grid-12 {
    grid-template-columns: 1fr;
  }

  .col-8, .col-4, .col-6, .col-3 {
    grid-column: span 1;
  }

  .card--featured {
    height: 320px;
  }

  .card--featured .card__title {
    font-size: var(--text-xl);
  }

  .post-header__title {
    font-size: var(--text-2xl);
  }

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

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  .doctor-search__form {
    flex-direction: column;
  }

  .doctor-search__stats {
    gap: var(--space-6);
  }

  .newsletter__form {
    flex-direction: column;
  }

  .share-bar {
    gap: var(--space-2);
  }

  .share-btn span {
    display: none;
  }
}

@media (max-width: 480px) {
  .container {
    padding-inline: var(--space-3);
  }

  .breaking-news__label {
    display: none;
  }

  .post-header__title {
    font-size: var(--text-xl);
  }

  .doctor-search__stat-number {
    font-size: var(--text-2xl);
  }

  .doctor-search__stats {
    gap: var(--space-4);
  }

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

/* ============================================================
   ACESSIBILIDADE
   ============================================================ */
:focus-visible {
  outline: 3px solid var(--rn-yellow);
  outline-offset: 2px;
}

.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;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: var(--space-4);
  background: var(--rn-green);
  color: white;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  z-index: 9999;
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}

/* Print */
@media print {
  .site-header,
  .breaking-news,
  .main-nav,
  .sidebar,
  .newsletter,
  .share-bar,
  .site-footer,
  .ad-banner {
    display: none !important;
  }

  .post-content {
    max-width: 100%;
    font-size: 12pt;
  }
}