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

/* ==========================================================================
   BASE
   ========================================================================== */
body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #393434;
  color: #fff;
  line-height: 1.6;
  width: 100%;
}

h1 {
  text-align: center;
  margin-top: 20px;
  margin-bottom: 20px;
  font-size: 2em;
}

/* ==========================================================================
   HEADER & NAVEGAÇÃO
   ========================================================================== */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  height: 70px;
  padding: 10px 20px;
  background-color: #333;
  box-shadow: 0px 5px 20px black;
}

.logo-e-titulo {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo {
  width: 45px;
  height: 45px;
  background-color: #ccc;
  border-radius: 10px;
  display: block;
}

#a-titulo-site-header {
  text-decoration: none;
}

.titulo-site-header {
  color: #fff;
  font-size: 1.6em;
  font-weight: 600;
  margin: 0;
  text-decoration: none;
}

.menu {
  list-style: none;
  display: flex;
}

.menu li a {
  color: #fff;
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 20px;
  margin-left: 10px;
  transition: background-color 0.3s ease;
}

.menu li a:hover {
  background-color: #6a6969;
}

/* ==========================================================================
   SIDENAV — usado por .container (index, natureza, paisagens, retratos, urbano)
   ========================================================================== */
.sidenav {
  grid-area: sidenav;
  background-color: #1e3a8a;
  color: #f0f4ff;
  border-radius: 20px;
  padding: 20px;
  height: 700px;
  width: 300px;
}

.sidenav h2 {
  color: #a9c5ff;
  margin-bottom: 12px;
  font-size: 1.5em;
  border-bottom: 1px solid #5a6882;
  padding-bottom: 8px;
}

.sidenav h3 {
  color: #a9c5ff;
  margin: 20px 0 10px 0;
  font-size: 1.2em;
  border-bottom: 1px dashed #5a6882;
  padding-bottom: 6px;
}
.sidenav p {
  margin-top: 10px;
  font-size: 0.95em;
  line-height: 1.6;
}

.sidenav .listasidenav {
  list-style: none;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 15px;
  padding: 0;
}

.sidenav .listasidenav li {
  padding: 0;
}

.sidenav .listasidenav li a {
  display: block;
  background-color: #3b5998;
  color: #fff;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 5px;
  text-align: center;
  font-size: 0.9em;
  transition:
    background-color 0.3s ease,
    transform 0.2s ease;
}

.sidenav .listasidenav li a:hover {
  background-color: #007bff;
  transform: translateY(-2px);
}

/* ==========================================================================
   CONTAINER — index, natureza, paisagens, retratos, urbano (CSS Grid)
   ========================================================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.7fr 1fr 1fr;
  grid-template-rows: auto auto auto;
  grid-template-areas:
    "sidenav item1 item2"
    "sidenav item3 item4"
    "footer  footer footer";
  gap: 20px;
  padding: 20px;
  border: 1px solid #fff;
}

.item:nth-child(2) {
  grid-area: item1;
}
.item:nth-child(3) {
  grid-area: item2;
}
.item:nth-child(4) {
  grid-area: item3;
}
.item:nth-child(5) {
  grid-area: item4;
}

.item {
  background-color: #ccc;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.item p {
  margin-top: 10px;
  color: #333;
}

.fotos {
  padding: 20px 0 0 0;
}

/* ==========================================================================
   FOOTER — .container (index, categorias)
   ========================================================================== */
.footer {
  grid-area: footer;
  background-color: #6a6969;
  border-radius: 20px;
  text-align: center;
  padding: 30px;
}

.footer h3 {
  margin-bottom: 15px;
}

.footer p {
  margin-bottom: 15px;
}

.footer .social-icons {
  display: flex;
  justify-content: center;
  gap: 15px;
}

.footer .social-icons img {
  width: 30px;
  height: 30px;
  border-radius: 50%;
}

/* ==========================================================================
   CONTAINER2 — sobre.html e contato.html (CSS Grid, 1 coluna)
   ========================================================================== */
.container2 {
  max-width: 1200px;
  margin: 20px auto;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-areas:
    "main-content"
    "page-footer";
  gap: 20px;
  padding: 20px;
  border: 1px solid #fff;
}

/* --- Página Sobre --- */
.container2 .sobre {
  grid-area: main-content;
  background-color: #1e3a8a;
  color: #f0f4ff;
  border-radius: 20px;
  padding: 30px 35px;
  height: auto;
  width: 100%;
}

.container2 .sobre h2 {
  padding: 0 0 12px 0;
  margin: 0 0 25px 0;
  font-size: 1.5em;
  text-align: center;
  color: #a9c5ff;
  border-bottom: 1px solid #5a6882;
}

.container2 .sobre p {
  font-size: 1em;
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 750px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}

.container2 .sobre .listasidenav {
  list-style: none;
  padding: 20px 0 0 0;
  margin-top: 35px;
  border-top: 1px solid #5a6882;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 15px;
}

.container2 .sobre .listasidenav li {
  padding: 0;
}

.container2 .sobre .listasidenav li a {
  background-color: #3b5998;
  color: #fff;
  padding: 8px 16px;
  border-radius: 5px;
  text-decoration: none;
  font-size: 0.9em;
  display: inline-block;
  transition:
    background-color 0.3s ease,
    transform 0.2s ease;
}

.container2 .sobre .listasidenav li a:hover {
  background-color: #007bff;
  transform: translateY(-2px);
}

/* --- Página Contato --- */
.container2 .sobre2 {
  grid-area: main-content;
  background-color: #1e3a8a;
  color: #f0f4ff;
  border-radius: 20px;
  padding: 30px 35px;
  height: auto;
  width: 100%;
}

.container2 .sobre2 h2 {
  padding: 0 0 12px 0;
  margin: 0 0 25px 0;
  font-size: 1.5em;
  text-align: center;
  color: #a9c5ff;
  border-bottom: 1px solid #5a6882;
}

.container2 .sobre2 h3 {
  padding: 0 0 6px 0;
  margin: 30px 0 12px 0;
  font-size: 1.5em;
  color: #a9c5ff;
  border-bottom: 1px dashed #5a6882;
  text-align: left;
}

.container2 .sobre2 p {
  font-size: 1em;
  line-height: 1.7;
  margin-bottom: 18px;
  max-width: 700px;
}

.container2 .sobre2 p.info-contato {
  margin-bottom: 12px;
  padding-left: 12px;
  border-left: 3px solid #689ef3;
}

.container2 .sobre2 .listasidenav {
  list-style: none;
  padding: 25px 0 0 0;
  margin-top: 40px;
  border-top: 1px solid #5a6882;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 18px;
}

.container2 .sobre2 .listasidenav li {
  padding: 0;
}

.container2 .sobre2 .listasidenav li a {
  background-color: #3b5998;
  color: #fff;
  padding: 8px 18px;
  border-radius: 5px;
  text-decoration: none;
  font-size: 0.9em;
  display: inline-block;
  transition:
    background-color 0.3s ease,
    transform 0.2s ease;
}

.container2 .sobre2 .listasidenav li a:hover {
  background-color: #007bff;
  transform: translateY(-2px);
}

/* --- Rodapé de .container2 --- */
.container2 .footer2 {
  grid-area: page-footer;
  background-color: #6a6969;
  border-radius: 20px;
  text-align: center;
  padding: 30px;
}

.container2 .footer2 h3 {
  margin-bottom: 15px;
  color: #fff;
}

.container2 .footer2 p {
  margin-bottom: 15px;
  color: #f0f0f0;
  font-size: 1em;
  line-height: 1.6;
}

.container2 .footer2 p a {
  color: #ddeeff;
}

.container2 .footer2 .social-icons {
  display: flex;
  justify-content: center;
  gap: 15px;
}

.container2 .footer2 .social-icons img {
  width: 30px;
  height: 30px;
  border-radius: 50%;
}

.contato-link {
  color: #ffffff;
  text-decoration: underline;
}

/* ==========================================================================
   CONTAINER3 — galeria.html (Flexbox)
   ========================================================================== */
.container3 {
  display: flex;
  flex-wrap: wrap;
  max-width: 1200px;
  margin: 20px auto;
  padding: 20px;
  gap: 20px;
  border: 1px solid #fff;
  justify-content: center;
}

/* Sidenav da galeria */
.container3 .sidenav {
  flex-basis: 100%;
  flex-grow: 0;
  flex-shrink: 0;
  order: 1;
  background-color: #1e3a8a;
  color: #f0f4ff;
  padding: 20px;
  border-radius: 20px;
  height: auto;
  text-align: center;
  width: auto;
}

.container3 .sidenav h2 {
  color: #a9c5ff;
  margin-bottom: 10px;
  font-size: 1.5em;
  border-bottom: 1px solid #5a6882;
  padding-bottom: 8px;
  display: inline-block;
}

.container3 .sidenav p {
  font-size: 1em;
  line-height: 1.6;
  margin-top: 10px;
  margin-bottom: 15px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.container3 .sidenav .listasidenav {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

.container3 .sidenav .listasidenav li {
  padding: 0;
}

.container3 .sidenav .listasidenav li a {
  background-color: #3b5998;
  color: #f0f4ff;
  text-decoration: none;
  display: inline-block;
  padding: 8px 15px;
  border-radius: 6px;
  font-size: 0.9em;
  transition:
    background-color 0.2s ease,
    transform 0.2s ease;
}

.container3 .sidenav .listasidenav li a:hover {
  background-color: #007bff;
  transform: translateY(-2px);
}

/* Itens da galeria */
.container3 .item2 {
  background-color: #ccc;
  color: #333;
  padding: 15px;
  border-radius: 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  order: 2;
  flex-grow: 0;
  flex-shrink: 0;
  flex-basis: 440px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.container3 .item2 img.fotos,
.container3 .item2 img.fotos2 {
  width: 1100px;
  height: 500px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 10px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.container3 .item2 p {
  font-size: 0.9em;
  margin-top: 5px;
}

/* Rodapé da galeria */
.container3 .footer {
  flex-basis: 100%;
  order: 3;
  background-color: #6a6969;
  color: #fff;
  padding: 30px;
  border-radius: 20px;
  text-align: center;
  margin-top: 20px;
  grid-area: unset;
}

.container3 .footer h3 {
  margin-bottom: 15px;
  font-size: 1.3em;
}

.container3 .footer p {
  margin-bottom: 15px;
  font-size: 1em;
  margin-top: 0;
}

.container3 .footer p a {
  color: #ddeeff;
  text-decoration: none;
}

.container3 .footer p a:hover {
  text-decoration: underline;
}

.container3 .footer .social-icons {
  display: flex;
  justify-content: center;
  gap: 15px;
}

.container3 .footer .social-icons img {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  transition: opacity 0.2s ease;
}

.container3 .footer .social-icons a:hover img {
  opacity: 0.7;
}

/* ==========================================================================
   RODAPÉ PRINCIPAL (fora da section)
   ========================================================================== */
body > footer {
  text-align: center;
  padding: 20px;
  background-color: #333;
  color: #fff;
  margin-top: 30px;
  font-size: 0.9em;
}

/* ==========================================================================
   MEDIA QUERIES
   ========================================================================== */

/* --- Tablet (≤ 992px) --- */
@media (max-width: 992px) {
  /* Index / Categorias: sidenav em cima, fotos em 2 colunas */
  .container {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "sidenav sidenav"
      "item1   item2"
      "item3   item4"
      "footer  footer";
  }

  .sidenav {
    width: 100%;
    height: auto;
  }

  .item .fotos {
    width: 100%;
    height: auto;
  }

  /* Galeria */
  .container3 .item2 {
    flex-basis: calc(50% - 10px);
  }

  /* Sobre / Contato */
  .container2 .sobre2,
  .container2 .sobre {
    padding: 25px 30px;
  }

  .container2 .sobre2 p,
  .container2 .sobre p {
    max-width: 100%;
  }
}

/* --- Mobile (≤ 768px) --- */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    height: auto;
    padding-bottom: 15px;
    gap: 10px;
  }

  .logo-e-titulo {
    justify-content: center;
    width: 100%;
  }

  .menu {
    margin-top: 10px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .menu li {
    margin: 5px;
  }
  .menu li a {
    margin-left: 0;
  }

  /* Index / Categorias: coluna única */
  .container {
    grid-template-columns: 1fr;
    grid-template-areas:
      "sidenav"
      "item1"
      "item2"
      "item3"
      "item4"
      "footer";
  }

  .item {
    width: 100%;
  }

  .item .fotos {
    width: 100%;
    height: auto;
    padding: 10px 0 0 0;
  }

  /* Galeria */
  .container3 .item2 {
    flex-basis: 100%;
  }

  .container3 .item2 img.fotos,
  .container3 .item2 img.fotos2 {
    width: 100%;
    max-width: 410px;
    height: auto;
    aspect-ratio: 410 / 300;
  }

  /* Sobre / Contato */
  .container2 .sobre2,
  .container2 .sobre {
    padding: 20px;
  }

  .container2 .sobre2 h2,
  .container2 .sobre h2 {
    font-size: 1.5em;
    margin-bottom: 20px;
  }

  .container2 .sobre2 h3 {
    font-size: 1.4em;
    margin-top: 25px;
    margin-bottom: 10px;
  }

  .container2 .sobre2 p,
  .container2 .sobre p {
    font-size: 0.95em;
    line-height: 1.65;
    margin-bottom: 16px;
  }

  .container2 .sobre2 p.info-contato {
    padding-left: 10px;
    font-size: 0.95em;
  }

  .container2 .sobre2 .listasidenav,
  .container2 .sobre .listasidenav {
    margin-top: 30px;
    padding-top: 20px;
    gap: 10px 15px;
  }

  .container2 .sobre2 .listasidenav li a,
  .container2 .sobre .listasidenav li a {
    padding: 8px 15px;
    font-size: 0.9em;
  }
}

/* --- Telas pequenas (≤ 480px) --- */
@media (max-width: 480px) {
  h1 {
    font-size: 1.8em;
  }
  .titulo-site-header {
    font-size: 1.2em;
  }

  /* Index / Categorias */
  .container {
    padding: 15px;
    gap: 15px;
  }

  .sidenav {
    padding: 15px;
  }
  .sidenav h2 {
    font-size: 1.5em;
  }

  .sidenav .listasidenav {
    flex-direction: column;
    align-items: center;
  }

  .item {
    border-radius: 12px;
  }

  .footer {
    padding: 20px;
  }
  .footer h3 {
    font-size: 1.1em;
  }

  /* Galeria */
  .container3 .sidenav {
    padding: 15px;
  }
  .container3 .sidenav h2 {
    font-size: 1.5em;
  }
  .container3 .sidenav .listasidenav {
    flex-direction: column;
    align-items: center;
  }
  .container3 .item2 {
    padding: 10px;
    flex-basis: 100%;
  }
  .container3 .footer {
    padding: 20px;
  }
  .container3 .footer h3 {
    font-size: 1.1em;
  }

  /* Sobre / Contato */
  .container2 .sobre2,
  .container2 .sobre {
    padding: 15px 20px;
  }

  .container2 .sobre2 h2,
  .container2 .sobre h2 {
    font-size: 1.5em;
  }

  .container2 .sobre2 h3 {
    font-size: 1.25em;
    margin-top: 20px;
  }

  .container2 .sobre2 p,
  .container2 .sobre p {
    font-size: 0.9em;
    line-height: 1.6;
  }

  .container2 .sobre2 p.info-contato {
    font-size: 0.9em;
  }

  .container2 .sobre2 .listasidenav,
  .container2 .sobre .listasidenav {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }

  .container2 .sobre2 .listasidenav li a,
  .container2 .sobre .listasidenav li a {
    padding: 8px 12px;
    font-size: 0.85em;
    width: 100%;
    max-width: 220px;
    text-align: center;
  }
}