/* =========================
   ARTIGO PREMIUM - PROTEÇÃO SOLAR
========================= */

* {
  box-sizing: border-box;
}

body {
  background: #ffffff;
}

.btn-voltar-home {
  position: fixed;
  top: 22px;
  left: 22px;
  z-index: 999;
  background: rgba(7, 21, 47, .9);
  color: #ffffff;
  padding: 12px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.18);
}

.btn-voltar-home:hover {
  background: #f6c453;
  color: #07152f;
}

.hero-protecao {
  min-height: 100vh;
  background:
    linear-gradient(rgba(5, 14, 32, .82), rgba(5, 14, 32, .94)),
    url("../assets/img/subestacao_2,5MVA/RENDER_SUBESTACAO_2,5_MVA_01.jpg");
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  padding: 140px 20px 90px;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.hero-protecao-content {
  max-width: 1120px;
  position: relative;
  z-index: 10;
}

.tag-artigo,
.section-tag {
  display: inline-block;
  color: #f6c453;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  font-size: .85rem;
  margin-bottom: 18px;
}

.hero-protecao h1 {
  max-width: 1080px;
  font-size: clamp(2.3rem, 5vw, 4.6rem);
  line-height: 1.05;
  margin-bottom: 24px;
  color: #ffffff;
}

.hero-protecao p {
  max-width: 860px;
  font-size: 1.18rem;
  line-height: 1.8;
  color: #dce4f2;
  margin-bottom: 30px;
  text-align: justify;
}

.hero-selos-protecao {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.hero-selos-protecao span {
  background: rgba(255,255,255,.09);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 700;
  color: #ffffff;
}

.hero-selos-protecao i {
  color: #f6c453;
  margin-right: 6px;
}

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

.btn-protecao-principal,
.btn-protecao-secundario {
  text-decoration: none;
  border-radius: 999px;
  font-weight: 900;
  padding: 15px 28px;
  transition: .3s ease;
}

.btn-protecao-principal {
  background: #25D366;
  color: #ffffff;
}

.btn-protecao-secundario {
  border: 1px solid rgba(255,255,255,.55);
  color: #ffffff;
}

.btn-protecao-principal:hover,
.btn-protecao-secundario:hover {
  transform: translateY(-3px);
}

/* RESUMO */

.resumo-protecao {
  padding: 100px 20px;
  background: #f8f9fc;
}

.resumo-protecao-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 60px;
  align-items: center;
}

.resumo-protecao h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: #0A1F44;
  line-height: 1.15;
  margin-bottom: 24px;
}

.resumo-protecao p {
  color: #4d5b72;
  line-height: 1.9;
  font-size: 1.08rem;
  margin-bottom: 18px;
  text-align: justify;
}

.box-protecao-premium {
  background: #ffffff;
  border-radius: 28px;
  padding: 36px;
  box-shadow: 0 25px 70px rgba(10,31,68,.12);
  border: 1px solid #e8edf5;
}

.box-protecao-premium h3 {
  color: #0A1F44;
  font-size: 1.6rem;
  margin-bottom: 22px;
}

.box-protecao-premium ul {
  list-style: none;
  padding: 0;
  margin-bottom: 26px;
}

.box-protecao-premium li {
  margin-bottom: 14px;
  color: #24324b;
  font-weight: 700;
}

.box-protecao-premium i {
  color: #f6c453;
  margin-right: 8px;
}

.box-protecao-premium a {
  display: inline-block;
  background: #f6c453;
  color: #0A1F44;
  text-decoration: none;
  font-weight: 900;
  padding: 14px 24px;
  border-radius: 999px;
}

/* ÍNDICE */

.indice-protecao {
  padding: 80px 20px;
  background: #07152f;
  color: #ffffff;
}

.indice-protecao h2 {
  text-align: center;
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 40px;
  color: #ffffff;
}

.grid-indice-protecao {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.grid-indice-protecao a {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  padding: 18px;
  border-radius: 18px;
  text-decoration: none;
  color: #ffffff;
  font-weight: 800;
  transition: .3s ease;
}

.grid-indice-protecao a:hover {
  transform: translateY(-5px);
  border-color: rgba(246,196,83,.45);
  color: #f6c453;
}

/* CONTEÚDO */

.conteudo-protecao {
  padding: 100px 20px;
  background: #ffffff;
}

.artigo-protecao-wrapper {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 60px;
  align-items: start;
}

.conteudo-protecao article {
  max-width: 850px;
}

.conteudo-protecao h2 {
  color: #0A1F44;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1.2;
  margin: 55px 0 22px;
}

.conteudo-protecao h2:first-child {
  margin-top: 0;
}

.conteudo-protecao h3 {
  color: #0A1F44;
  font-size: 1.35rem;
  margin: 34px 0 14px;
}

.conteudo-protecao p {
  color: #4d5b72;
  line-height: 1.95;
  font-size: 1.06rem;
  margin-bottom: 18px;
  text-align: justify;
}

.box-destaque-tecnico {
  background: #f8f9fc;
  border-left: 5px solid #f6c453;
  border-radius: 18px;
  padding: 26px;
  margin: 32px 0;
}

.box-destaque-tecnico h3 {
  margin-top: 0;
}

/* SIDEBAR */

.sidebar-protecao {
  position: sticky;
  top: 110px;
}

.sidebar-card-protecao {
  background: #ffffff;
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 25px 70px rgba(10,31,68,.12);
  border: 1px solid #e8edf5;
  margin-bottom: 24px;
}

.sidebar-card-protecao h3 {
  color: #0A1F44;
  margin-bottom: 14px;
}

.sidebar-card-protecao p,
.sidebar-card-protecao li {
  color: #4d5b72;
  line-height: 1.8;
}

.sidebar-card-protecao a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #25D366;
  color: #ffffff;
  text-decoration: none;
  font-weight: 900;
  padding: 13px 20px;
  border-radius: 999px;
  margin-top: 18px;
}

.sidebar-card-protecao.escuro {
  background: #07152f;
  color: #ffffff;
}

.sidebar-card-protecao.escuro h3,
.sidebar-card-protecao.escuro li {
  color: #ffffff;
}

/* RESPONSIVO */

@media (max-width: 1050px) {
  .resumo-protecao-grid,
  .artigo-protecao-wrapper {
    grid-template-columns: 1fr;
  }

  .sidebar-protecao {
    position: static;
  }

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

@media (max-width: 700px) {
  .hero-protecao {
    min-height: auto;
    padding-top: 120px;
  }

  .hero-protecao h1 {
    font-size: 2.2rem;
  }

  .hero-botoes-protecao a {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .grid-indice-protecao {
    grid-template-columns: 1fr;
  }

  .btn-voltar-home {
    position: absolute;
  }
}

/* =========================
   ETAPA 2 - DIAGRAMAS E ZONAS
========================= */

.fluxo-usina {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 14px;
  margin: 38px 0;
}

.fluxo-usina div {
  position: relative;
  background: #07152f;
  color: #ffffff;
  border-radius: 18px;
  padding: 22px 14px;
  text-align: center;
  border: 1px solid rgba(246,196,83,.25);
  box-shadow: 0 18px 45px rgba(10,31,68,.14);
}

.fluxo-usina div:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -15px;
  top: 50%;
  transform: translateY(-50%);
  color: #f6c453;
  font-weight: 900;
  font-size: 1.3rem;
  z-index: 3;
}

.fluxo-usina i {
  display: block;
  color: #f6c453;
  font-size: 1.6rem;
  margin-bottom: 10px;
}

.fluxo-usina span {
  font-weight: 800;
  font-size: .88rem;
}

.zonas-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin: 38px 0;
}

.zonas-grid div {
  position: relative;
  background: #f8f9fc;
  border: 1px solid #e8edf5;
  border-radius: 22px;
  padding: 28px;
  overflow: hidden;
  transition: .3s ease;
}

.zonas-grid div::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(246,196,83,.18), transparent 45%);
  opacity: 0;
  transition: .3s ease;
}

.zonas-grid div:hover {
  transform: translateY(-6px);
  box-shadow: 0 25px 65px rgba(10,31,68,.12);
  border-color: rgba(246,196,83,.5);
}

.zonas-grid div:hover::before {
  opacity: 1;
}

.zonas-grid span,
.zonas-grid h3,
.zonas-grid p {
  position: relative;
  z-index: 2;
}

.zonas-grid span {
  display: inline-block;
  color: #f6c453;
  background: #07152f;
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 900;
  font-size: .8rem;
  margin-bottom: 14px;
}

.zonas-grid h3 {
  margin-top: 0;
  color: #0A1F44;
}

.zonas-grid p {
  margin-bottom: 0;
}

.box-alerta-protecao {
  background: #07152f;
  border-left: 5px solid #f6c453;
  border-radius: 18px;
  padding: 28px;
  margin: 34px 0;
}

.box-alerta-protecao h3 {
  margin-top: 0;
  color: #ffffff;
}

.box-alerta-protecao p {
  color: #dce4f2;
}

@media (max-width: 1000px) {
  .fluxo-usina {
    grid-template-columns: repeat(2, 1fr);
  }

  .fluxo-usina div:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 650px) {
  .fluxo-usina,
  .zonas-grid {
    grid-template-columns: 1fr;
  }
}

/* =========================
   ETAPA 3 - TABELA ANSI
========================= */

.tabela-ansi-wrapper {
  width: 100%;
  overflow-x: auto;
  margin: 38px 0;
  border-radius: 22px;
  box-shadow: 0 25px 70px rgba(10,31,68,.12);
}

.tabela-ansi {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
  overflow: hidden;
  min-width: 760px;
}

.tabela-ansi thead {
  background: #07152f;
  color: #ffffff;
}

.tabela-ansi th {
  padding: 20px;
  text-align: left;
  font-size: .95rem;
  text-transform: uppercase;
  letter-spacing: .7px;
}

.tabela-ansi td {
  padding: 18px 20px;
  border-bottom: 1px solid #e8edf5;
  color: #4d5b72;
  line-height: 1.7;
}

.tabela-ansi td:first-child {
  color: #f6c453;
  background: #07152f;
  font-weight: 900;
  font-size: 1.2rem;
  text-align: center;
  width: 90px;
}

.tabela-ansi tbody tr:hover {
  background: #f8f9fc;
}

.tabela-ansi tbody tr:hover td:first-child {
  background: #0A1F44;
}

/* =========================
   ETAPA 5 - ERROS E BOAS PRÁTICAS
========================= */

.erros-grid,
.boas-praticas {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 40px 0;
}

.erro-card,
.boas-praticas div {
    background: #f8f9fc;
    border: 1px solid #e8edf5;
    border-radius: 22px;
    padding: 28px;
    transition: .3s;
    position: relative;
}

.erro-card:hover,
.boas-praticas div:hover {
    transform: translateY(-6px);
    box-shadow: 0 25px 60px rgba(10,31,68,.12);
}

.erro-card span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: #07152f;
    color: #f6c453;
    font-weight: 900;
    margin-bottom: 18px;
}

.erro-card h3,
.boas-praticas h3 {
    color: #0A1F44;
    margin-bottom: 12px;
}

.boas-praticas i {
    font-size: 2rem;
    color: #f6c453;
    margin-bottom: 16px;
}

@media (max-width: 768px) {
    .erros-grid,
    .boas-praticas {
        grid-template-columns: 1fr;
    }
}

/* ==========================
   FAQ PREMIUM
========================== */

.faq-premium{

    margin:50px 0;

}

.faq-premium details{

    background:#f8f9fc;

    border:1px solid #e6ebf2;

    border-radius:18px;

    margin-bottom:16px;

    padding:22px;

}

.faq-premium summary{

    cursor:pointer;

    font-weight:800;

    color:#0A1F44;

    font-size:1.05rem;

}

.faq-premium p{

    margin-top:18px;

}

/* CTA */

.cta-artigo-premium{

    margin:100px 0;

    background:#07152F;

    color:white;

    border-radius:30px;

    padding:70px;

    text-align:center;

}

.cta-artigo-premium span{

    color:#f6c453;

    font-weight:900;

    text-transform:uppercase;

    letter-spacing:1px;

}

.cta-artigo-premium h2{

    color:white;

    margin:25px 0;

    font-size:2.6rem;

}

.cta-artigo-premium p{

    color:#d9e3ef;

    max-width:850px;

    margin:auto;

    margin-bottom:40px;

}

.beneficios-cta{

    display:grid;

    grid-template-columns:repeat(3,1fr);

    gap:18px;

    margin:40px 0;

}

.beneficios-cta div{

    background:rgba(255,255,255,.08);

    padding:18px;

    border-radius:14px;

    font-weight:700;

}

.beneficios-cta strong{

    color:#f6c453;

}

.cta-artigo-premium a{

    display:inline-block;

    background:#25D366;

    color:white;

    text-decoration:none;

    padding:18px 34px;

    border-radius:999px;

    font-weight:800;

    font-size:1.1rem;

    transition:.3s;

}

.cta-artigo-premium a:hover{

    transform:translateY(-4px);

}

/* RELACIONADOS */

.artigos-relacionados{

    margin-top:100px;

}

.artigos-relacionados h2{

    text-align:center;

    margin-bottom:40px;

}

.relacionados-grid{

    display:grid;

    grid-template-columns:repeat(3,1fr);

    gap:25px;

}

.relacionados-grid a{

    text-decoration:none;

    background:#f8f9fc;

    border-radius:20px;

    padding:30px;

    transition:.3s;

    border:1px solid #e6ebf2;

}

.relacionados-grid a:hover{

    transform:translateY(-8px);

    box-shadow:0 20px 60px rgba(0,0,0,.08);

}

.relacionados-grid h3{

    color:#0A1F44;

}

.relacionados-grid p{

    color:#55657c;

}

@media(max-width:900px){

    .beneficios-cta{

        grid-template-columns:1fr;

    }

    .relacionados-grid{

        grid-template-columns:1fr;

    }

    .cta-artigo-premium{

        padding:45px 25px;

    }

}