:root {
  --bg-color: #ffffff;
  --text-color: #1a1a1a;
  --primary-color: #4f73ff;
  --input-bg: #f1f1f1;
  --border-color: #cccccc;
  --header-bg: #ffffff;
  --nav-link-color: #1a1a1a;
  --nav-link-hover: #3366cc;
  --button-bg: #3366cc;
  --button-hover-bg: #254d99;
  --panel-bg: #ffffff;
  --panel-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --comment-item-bg: #f0f0f0;
}

body.dark-mode {
  --bg-color: #121212;
  --text-color: #e1e1e1;
  --input-bg: #2c2c2c;
  --border-color: #444;
  --header-bg: #1e1e1e;
  --nav-link-color: #e1e1e1;
  --nav-link-hover: #88aaff;
  --button-bg: #3366cc;
  --button-hover-bg: #254d99;
  --panel-bg: #282828;
  --panel-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
  --comment-item-bg: #252525;
}

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

body {
  font-family: "Segoe UI", sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s, color 0.3s;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 40px;
}

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--header-bg);
  padding: 15px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  border-radius: 0 0 16px 16px;
  z-index: 1000;
  transition: background-color 0.3s, box-shadow 0.3s;
}

/* Esconde o botão de menu por padrão em telas grandes */
.menu-btn {
  display: none;
}

.nav-principal {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  height: 40px;
  width: auto;
}

.site-nav h1 {
  color: var(--text-color);
  font-weight: 700;
  font-size: 1.5rem;
  transition: color 0.3s;
}

/* Layout do menu em desktop */
.menu-e-acoes {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-menu {
  list-style: none;
  display: flex;
  gap: 20px;
}

.nav-direita {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-menu li a {
  color: var(--nav-link-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: color 0.3s ease;
}

.nav-menu li a:hover,
.nav-menu li a[aria-current="page"] {
  color: var(--nav-link-hover);
  text-decoration: underline;
}

#notificationBtn,
#modo-btn {
  background-color: var(--button-bg);
  color: white;
  border: none;
  padding: 10px 14px;
  border-radius: 50px;
  cursor: pointer;
  font-size: 18px;
  transition: background-color 0.3s ease, transform 0.2s ease, color 0.3s ease;
}

#notificationBtn:hover,
#modo-btn:hover {
  background-color: var(--button-hover-bg);
  transform: scale(1.1);
}

.notification-area {
  position: relative;
  display: inline-block;
}

.dropdown {
  position: absolute;
  top: 45px;
  right: 0;
  background-color: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px;
  box-shadow: var(--panel-shadow);
  color: var(--text-color);
  min-width: 220px;
  z-index: 10;
  transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

main {
  padding: 20px 12px;
  flex-direction: column;
  margin-top: 120px;
  width: 100%;
  max-width: 1400px;
}

.task-wrapper {
  display: flex;
  gap: 40px;
  width: 100%;
  max-width: 1300px;
  background-color: var(--panel-bg);
  padding: 20px;
  border-radius: 8px;
  box-shadow: var(--panel-shadow);
  transition: background-color 0.3s, box-shadow 0.3s;
}

.task-form-section {
  flex: 2;
  min-width: 320px;
  padding-right: 20px;
  border-right: 1px solid var(--border-color);
  transition: border-color 0.3s;
}

.task-form-section h1 {
  margin-bottom: 20px;
  font-size: 28px;
  color: var(--text-color);
  transition: color 0.3s;
}

form > div {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
}

label {
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-color);
  transition: color 0.3s;
}

input,
textarea,
select {
  padding: 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--input-bg);
  color: var(--text-color);
  transition: background-color 0.3s, border-color 0.3s, color 0.3s;
}

textarea {
  resize: vertical;
  min-height: 80px;
}

button[type="submit"] {
  margin-top: 10px;
  padding: 10px 16px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s;
}

button[type="submit"]:hover {
  background-color: #3a5dc8;
}

.tips-panel {
  flex: 1;
  background-color: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
  color: var(--text-color);
  font-weight: 500;
  box-shadow: var(--panel-shadow);
  display: flex;
  flex-direction: column;
  gap: 30px;
  transition: background-color 0.3s, border-color 0.3s, color 0.3s, box-shadow 0.3s;
}

.tips-panel h2 {
  margin-bottom: 16px;
  font-weight: 700;
  font-size: 22px;
  color: var(--text-color);
  transition: color 0.3s;
}

.tips-panel ul {
  list-style: disc inside;
  line-height: 1.6;
  font-size: 16px;
  color: var(--text-color);
  transition: color 0.3s;
}

.comment-section h2 {
  margin-bottom: 15px;
  color: var(--text-color);
  transition: color 0.3s;
}

.comment-section textarea {
  width: 100%;
  min-height: 60px;
  margin-bottom: 10px;
  padding: 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--input-bg);
  color: var(--text-color);
  resize: vertical;
  transition: background-color 0.3s, border-color 0.3s, color 0.3s;
}

.comment-section button {
  background-color: #28a745;
  color: white;
  border: none;
  padding: 8px 15px;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  width: 100%;
}

.comment-section button:hover {
  background-color: #218838;
}

.comment-item {
  background-color: var(--comment-item-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px;
  margin-top: 10px;
  font-size: 0.95em;
  line-height: 1.4;
  word-wrap: break-word;
  color: var(--text-color);
  transition: background-color 0.3s, border-color 0.3s, color 0.3s;
}

/* Regras para telas menores */
@media (max-width: 768px) {
  .site-nav {
    flex-wrap: wrap; /* Permite que o menu desça para a linha de baixo */
    padding: 15px 20px;
  }
  
  .nav-principal {
    flex: 1; /* Permite que o logo e o título ocupem o espaço disponível */
    justify-content: space-between;
  }

  .site-nav h1 {
    display: none;
  }

  /* Exibe o botão do menu hambúrguer */
  .menu-btn {
    display: block;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 24px;
    cursor: pointer;
  }

  /* Controla o container do menu de links e ações */
  .menu-e-acoes {
    display: none; /* Esconde o container por padrão */
    flex-direction: column;
    width: 100%;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--header-bg);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  }

  /* Mostra o container quando a classe 'active' é adicionada */
  .menu-e-acoes.active {
    display: flex;
  }

  .nav-menu {
    flex-direction: column;
    width: 100%;
    gap: 0; /* Remove o espaçamento entre os links */
  }

  .nav-menu li a {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    display: block;
    text-align: center;
  }

  .nav-direita {
    width: 100%;
    padding: 10px 20px;
    justify-content: center;
    border-top: 1px solid var(--border-color);
  }

  main {
    margin-top: 100px;
  }

  .task-wrapper {
    flex-direction: column;
    gap: 20px;
    padding: 16px;
  }
}