/* =====================
   VARIÁVEIS GLOBAIS
   ===================== */
:root {
  --azul: #1d4ed8;
  --azul-claro: #3b82f6;
  --verde: #059669;
  --branco: #ffffff;
  --texto: #0f172a;
  --texto-suave: #475569;
  --fundo: #f8fafc;
  --fundo-card: #ffffff;
  --cinza-borda: #e2e8f0;
  --cinza-medio: #94a3b8;
  --font-titulo: 'Inter', sans-serif;
  --font-corpo: 'Inter', sans-serif;
  --sombra: 0 4px 24px rgba(0, 0, 0, 0.08);
  --sombra-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
  --radius: 12px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-corpo);
  color: var(--texto);
  background-color: var(--fundo);
  font-size: 16px;
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

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

ul {
  list-style: none;
}

/* =====================
   TIPOGRAFIA
   ===================== */
h1 {
  font-family: var(--font-titulo);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h2 {
  font-family: var(--font-titulo);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h3 {
  font-family: var(--font-corpo);
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
}

p {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.75;
}

/* =====================
   CONTAINER
   ===================== */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* =====================
   BOTÕES
   ===================== */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  font-family: var(--font-corpo);
  letter-spacing: 0.01em;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-azul {
  background-color: var(--azul);
  color: var(--branco);
  box-shadow: 0 4px 14px rgba(29, 78, 216, 0.3);
}

.btn-azul:hover {
  background-color: #1e40af;
  box-shadow: 0 6px 20px rgba(29, 78, 216, 0.4);
}

.btn-verde {
  background-color: var(--verde);
  color: var(--branco);
  box-shadow: 0 4px 14px rgba(5, 150, 105, 0.3);
}

.btn-verde:hover {
  background-color: #047857;
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--azul);
  color: var(--azul);
}

.btn-outline:hover {
  background-color: var(--azul);
  color: var(--branco);
}

/* =====================
   HEADER
   ===================== */
header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--cinza-borda);
  z-index: 100;
  padding: 0;
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-family: var(--font-titulo);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--texto);
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--azul);
}

nav ul {
  display: flex;
  gap: 36px;
  align-items: center;
}

nav ul li a {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--texto-suave);
  transition: color 0.2s;
  letter-spacing: 0.01em;
}

nav ul li a:hover {
  color: var(--texto);
}

/* =====================
   LABELS DE CATEGORIA
   ===================== */
.cat-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}

.cat-seo {
  background: #dbeafe;
  color: #1d4ed8;
}

.cat-redes {
  background: #fce7f3;
  color: #be185d;
}

.cat-ia {
  background: #d1fae5;
  color: #065f46;
}

.cat-negocios {
  background: #e0e7ff;
  color: #3730a3;
}

.cat-marketing {
  background: #ffedd5;
  color: #9a3412;
}

.cat-tutoriais {
  background: #fef9c3;
  color: #854d0e;
}

.cat-conteudo {
  background: #f3e8ff;
  color: #6b21a8;
}

.cat-branding {
  background: #fce7f3;
  color: #9d174d;
}

.cat-produtividade {
  background: #dcfce7;
  color: #14532d;
}

.cat-noticias {
  background: #f1f5f9;
  color: #334155;
}

/* =====================
   THUMB CORES
   ===================== */
.cat-bg-seo {
  background-color: #dbeafe;
}

.cat-bg-redes {
  background-color: #fce7f3;
}

.cat-bg-ia {
  background-color: #d1fae5;
}

.cat-bg-negocios {
  background-color: #e0e7ff;
}

.cat-bg-marketing {
  background-color: #ffedd5;
}

.cat-bg-tutoriais {
  background-color: #fef9c3;
}

.cat-bg-conteudo {
  background-color: #f3e8ff;
}

.cat-bg-branding {
  background-color: #fce7f3;
}

.cat-bg-produtividade {
  background-color: #dcfce7;
}

.cat-bg-noticias {
  background-color: #f1f5f9;
}

/* =====================
   CARD EDITORIAL (com gradiente)
   ===================== */
.card-editorial {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  display: block;
  cursor: pointer;
  background: #0f172a;
}

.card-editorial .card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  transition: transform 0.5s ease;
}

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

.card-editorial .card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top,
      rgba(0, 0, 0, 0.92) 0%,
      rgba(0, 0, 0, 0.5) 45%,
      rgba(0, 0, 0, 0.1) 100%);
}

.card-editorial .card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
}

.card-editorial .card-titulo {
  font-family: var(--font-titulo);
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.card-editorial.card-hero .card-titulo {
  font-size: 1.9rem;
  margin-bottom: 14px;
}

.card-editorial .card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.65);
}

/* =====================
   CARD SIMPLES (listagem)
   ===================== */
.card-simples {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--cinza-borda);
  transition: opacity 0.2s;
}

.card-simples:hover {
  opacity: 0.75;
}

.card-simples:last-child {
  border-bottom: none;
}

.card-simples .card-thumb-sm {
  width: 80px;
  height: 80px;
  border-radius: 8px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.card-simples .card-info {
  flex: 1;
}

.card-simples .card-titulo-sm {
  font-family: var(--font-titulo);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--texto);
  line-height: 1.35;
  margin-bottom: 6px;
}

.card-simples .card-meta-sm {
  font-size: 0.75rem;
  color: var(--cinza-medio);
}

/* =====================
   SEÇÃO GENÉRICA
   ===================== */
.secao {
  padding: 72px 0;
}

.secao-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 32px;
  border-bottom: 2px solid var(--texto);
  padding-bottom: 12px;
}

.secao-header h2 {
  font-size: 1.1rem;
  font-family: var(--font-corpo);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.secao-header a {
  font-size: 0.82rem;
  color: var(--azul);
  font-weight: 600;
}

/* =====================
   GRID
   ===================== */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* =====================
   NEWSLETTER BANNER
   ===================== */
.newsletter-banner {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
  color: var(--branco);
  padding: 72px 0;
  text-align: center;
}

.newsletter-banner h2 {
  font-size: 2.2rem;
  margin-bottom: 10px;
  color: white;
}

.newsletter-banner p {
  opacity: 0.75;
  margin-bottom: 28px;
  font-size: 1.05rem;
}

.newsletter-form {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.newsletter-form input {
  padding: 13px 20px;
  border-radius: 8px;
  border: none;
  font-size: 0.95rem;
  width: 320px;
  outline: none;
  font-family: var(--font-corpo);
}

/* =====================
   FERRAMENTA CARD
   ===================== */
.card-ferramenta {
  background: var(--branco);
  border: 1px solid var(--cinza-borda);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.25s;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-ferramenta:hover {
  box-shadow: var(--sombra-hover);
  transform: translateY(-3px);
  border-color: var(--azul-claro);
}

.card-ferramenta .f-icone {
  font-size: 2rem;
}

.card-ferramenta h3 {
  font-size: 1rem;
  font-weight: 700;
}

.card-ferramenta p {
  font-size: 0.88rem;
  color: var(--texto-suave);
  line-height: 1.6;
}

/* =====================
   FOOTER
   ===================== */
footer {
  background-color: #0f172a;
  color: rgba(255, 255, 255, 0.5);
  padding: 48px 0;
  margin-top: 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

footer .logo {
  color: white;
  font-size: 1.3rem;
}

footer .logo span {
  color: var(--azul-claro);
}

footer p {
  font-size: 0.85rem;
}

/* =====================
   THUMB CORES
   ===================== */
.cat-bg-seo {
  background-color: #dbeafe;
}

.cat-bg-redes {
  background-color: #fce7f3;
}

.cat-bg-ia {
  background-color: #d1fae5;
}

.cat-bg-sites {
  background-color: #fef3c7;
}

.cat-bg-google {
  background-color: #fee2e2;
}

/* =====================
   CARD (blog listing)
   ===================== */
.card {
  background: var(--branco);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--cinza-borda);
  transition: all 0.25s;
  display: block;
}

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

.card-body {
  padding: 18px;
}

.card-categoria {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--azul);
  margin-bottom: 6px;
  display: inline-block;
}

.card-titulo {
  font-family: var(--font-titulo);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--texto);
  line-height: 1.35;
}

.card-tempo {
  font-size: 0.75rem;
  color: var(--cinza-medio);
}

.card-thumb {
  height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

/* =====================
   RESPONSIVO
   ===================== */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  nav ul {
    gap: 16px;
  }

  .newsletter-form input {
    width: 100%;
  }

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