/* ==========================
   Tema claro
   ========================== */
html[theme="light"] {
  --color-bg: #ffffff;
  --color-text: #222222;
  --color-primary: #009639;
  --color-primary-II: #275040;
  --color-primary-light: #3cb878;
  --color-secondary: #4dc6b6;
  --color-accent: #f15a29;
  --color-border: #b6b6b6;
  --color-bg-card: #efefef;
  --color-bxs: rgba(0, 0, 0, 0.3);
}

/* ==========================
   Tema escuro
   ========================== */
html[theme="dark"] {
  --color-bg: #121212;
  --color-text: #f5f5f5;
  --color-primary: #3cb878;
  --color-primary-II: #275040;
  --color-primary-light: #00a859;
  --color-secondary: #4dc6b6;
  --color-accent: #f68c57;
  --color-border: #333333;
  --color-bg-card: #313131;
  --color-bxs: rgba(228, 228, 228, 0.3);

  p,
  a,
  h5 {
    background-color: black !important;
    color: white !important;
    border: 1px solid white !important;
  }
}

/* ==========================
   Estrutura base
   ========================== */
body {
  background-color: var(--color-bg) !important;
  color: var(--color-text);
  font-family: Arial, sans-serif;
}

/* ==========================
   Cabeçalho
   ========================== */
header {
  background: var(--color-primary);
  color: var(--color-bg);
  padding: 1rem;
}

/* ==========================
   Links
   ========================== */
a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  color: var(--color-accent);
}

/* ==========================
   Botões
   ========================== */
button {
  background: var(--color-secondary);
  color: var(--color-bg);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  background: var(--color-accent);
}

/* ==========================
   Scrollbar personalizada
   ========================== */
::-webkit-scrollbar {
  width: 4px; 
}

::-webkit-scrollbar-track {
  background: #1d1d1d; 
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary); 
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-light); 
}

/* ==========================
   Seleção de texto
   ========================== */
::selection {
  background: var(--color-primary); 
  color: var(--color-bg);        
}

/* ==========================
   Seção hero/banner principal
   ========================== */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 50vh;
  text-align: center;
  color: #fff;
  background: linear-gradient(90deg,
      var(--color-secondary) 0%,
      var(--color-primary) 100%);
}

.hero h1 {
  font-size: 3rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto;
  opacity: 0.9;
}

.hero button {
  margin-top: 1.5rem;
  background: #f15a29;
  color: #fff;
  border: none;
  padding: 0.8rem 1.5rem;
  font-size: 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s;
}

.hero button:hover {
  background: #d94b1f;
}

/* ==========================
   Divisor e navegação
   ========================== */
.divisor {
  width: 100%;
  background: transparent;
}

.navbar {
  background-color: var(--color-bg);
}

.navbar ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  padding: 0;
  margin: 0;
}

.navbar ul li {
  position: relative;
  padding: 0 1rem;
}

.navbar ul li a {
  text-decoration: none;
  color: var(--color-primary);
  font-weight: bold;
}

.navbar ul li a:hover {
  color: var(--color-accent);
}

.navbar ul li:not(:first-child) {
  border-left: 2px solid var(--color-primary);
}

.navbar .tema {
  background-color: var(--color-primary);
}

.navbar .tema:hover {
  background-color: var(--color-accent);
}

/* ==========================
   Seções e rodapé base
   ========================== */
section,
footer {
  background-color: var(--color-bg);
  color: var(--color-text);
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ==========================
   Botão "Voltar ao topo"
   ========================== */
#btnTopo {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: none;
  z-index: 1050;
  height: 45px;
  width: 45px;
  background-color: var(--color-primary);
  color: var(--color-bg);
}

#btnTopo:hover {
  background-color: var(--color-accent);
}

#btnTopo i {
  display: inline-block;
  transition: transform 0.3s ease;
}

#btnTopo:hover i {
  transform: translateY(-4px);
}

/* ==========================
   Cards de materiais
   ========================== */
#material .custom-card {
  border: 1px solid var(--color-border) !important;
  border-radius: 15px;
  overflow: hidden;
  background-color: var(--color-bg);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#material .custom-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px var(--color-bxs);
}

#material .custom-card h5 {
  color: var(--color-text);
  transition: color 0.3s ease;
}

html[theme="light"] #material .custom-card:hover h5 {
  color: var(--color-primary) !important;
}

#material .card-img {
  width: 100%;
  background-size: cover;
  background-position: center;
}

/* ==========================
   Botões personalizados (cards e modais)
   ========================== */
#material .custom-btn {
  border: none;
  background-color: #007b33;
  color: #fff;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

#material .custom-btn:hover {
  transform: translateY(4px);
  background-color: #005f27;
}

#material .custom-btn-modal {
  border: none;
  background-color: var(--color-bg);
  color: #005f27;
  border: 2px solid #005f27;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

#material .custom-btn-modal:hover {
  transform: translateY(4px);
  background-color: #005f27;
  color: var(--color-bg);
}

/* ==========================
   Rodapé
   ========================== */
footer {
  background-color: var(--color-primary-II);
}