:root {
  --cor-azul: #003b71;
  --cor-verde: #35a35f;
  --cor-amarelo: #ffcc00;
  --cor-clara: #f4f4f4;
  --cor-escura: #1a1a1a;
}

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

html, body {
  height: 100%;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--cor-clara);
  color: var(--cor-escura);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

header {
  background: linear-gradient(to right, var(--cor-verde), var(--cor-azul));
  color: white;
  text-align: center;
  padding: 2rem 1rem;
}

header h1 {
  font-size: 2.5rem;
}

header p {
  font-size: 1.2rem;
  margin-top: 0.5rem;
}

main {
  flex: 1;
  padding: 2rem;
}

section.apresentacao,
section.programacao {
  background-color: rgb(255, 255, 255);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  max-width: 900px;
  margin: auto;
}

section.programacao h2 {
  margin-top: 2rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--cor-azul);
}

h2 {
  color: var(--cor-azul);
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1rem;
}

ul {
  list-style: none;
  padding-left: 0;
}

ul li {
  background: var(--cor-clara);
  margin: 0.5rem 0;
  padding: 0.8rem;
  border-left: 5px solid var(--cor-verde);
}

.botao {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: var(--cor-verde);
  color: white;
  text-decoration: none;
  margin: 1rem 1rem 0 0;
  border-radius: 25px;
  outline: none;
  padding: 10px 35px;
  cursor: pointer;
  transition: all 0.3s ease-in-out;
}

.botoes {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.botao:hover {
  background-color: #2a804d;
}

.botao-secundario {
  background-color: var(--cor-azul);
}

.botao-secundario:hover {
  background-color: #002f5a;
}

.voltar {
  background-color: var(--cor-verde);
  color: #000;
}

footer {
  background-color: var(--cor-azul);
  color: white;
  text-align: center;
  padding: 1rem;
}

.palestrante {
  display: block;
  font-size: 0.9rem;
  font-style: italic;
  color: rgba(78, 78, 78, 0.774);
  margin-top: 0.3rem;
}

.palestrante p {
  margin-bottom: 0.6rem;
}

.palestrantes-lista {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 0.8rem;
}

.palestrante-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.palestrante-item img {
  width: 45px;
  height: 55px;
  border-radius: 5px;
  object-fit: cover;
}

.info-palestrante {
  display: flex;
  flex-direction: column;
}

.info-palestrante .nome {
  font-weight: bold;
  font-style: italic;
  margin: 0;
}

.info-palestrante .cargo {
  font-style: italic;
  color: #555;
  margin: 0.2rem 0 0;
}

.palestrante-item p {
  margin: 0;
  font-style: italic;
  color: #555;
}

.temporizador {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  text-align: center;
  margin-bottom: 2rem;
}

.temporizador h3 {
  color: var(--cor-azul);
  margin-bottom: 1rem;
}

.contador {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  justify-content: center;
  gap: 1rem;
  font-size: 1.2rem;
}

.contador span {
  font-weight: bold;
  font-size: 1.2rem;
  color: var(--cor-azul);
}

.img-apresentacao {
  max-width: 100%;
  height: auto;
  margin-bottom: 1.5rem;
  border-radius: 7px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.patrocinadores {
  text-align: center;
  padding: 3rem 1rem 2rem;
}

.patrocinadores h3 {
  font-size: 1.5rem;
  color: var(--cor-azul);
  margin-bottom: 1.5rem;
}

.logos-patrocinadores {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  align-items: center;
}

.logos-patrocinadores img {
  height: 80px;
  max-width: 150px;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.logos-patrocinadores img:hover {
  transform: scale(1.05);
}

.logo-arq {
  height: 95px !important;
}

.topo {
  background: linear-gradient(to right, var(--cor-verde), var(--cor-azul));
  color: white;
  padding: 2rem 1rem;
}

.header-container {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  max-width: 1000px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
  text-align: center;
}

.logo-feira {
  height: 130px;
  width: 130px;
  object-fit: cover;
  border-radius: 50%;
}

.titulo-site h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.titulo-site p {
  font-size: 1rem;
}

.dia-toggle {
  background-color: var(--cor-azul);
  color: white;
  border: none;
  padding: 1rem;
  width: 100%;
  text-align: left;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  margin: 1rem 0 0.5rem;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

.dia-toggle:hover {
  background-color: #002f5a;
}

.dia-conteudo {
  height: 0;
  overflow: hidden;
  opacity: 0;
  transition: height 0.4s ease, opacity 0.3s ease;
  margin-bottom: 0;
}

.dia-conteudo.aberto {
  opacity: 1;
  margin-bottom: 2rem;
}