body {
  font-family: sans-serif;
  background: #f2f2f2;
  padding: 4px;
  max-width: 540px;
  margin: auto;
}

h1 {
  text-align: center;
  color: #333;
  margin-bottom: 30px;
}

.tabs {
  display: flex;
  justify-content: center;
  margin: 16px;
}

.tab {
  margin: 0;
  padding: 16px 24px;
  background: #f2f2f2;
  font-size: 24px;
  font-weight: bold;
  border-bottom: 3px solid #f2f2f2;
  cursor: pointer;
}

.tab.selected {
  border-bottom: 3px solid #4CAF50;
  color: #333;
}

.grid {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  justify-content: center;
}

/* quando houver só 2 botões por linha */
.grid.two-buttons .button-card {
  flex: 1 1 calc(50% - 8px);
  max-width: calc(50% - 8px);
}

.card {
  background: white;
  border-radius: 6px;
  padding: 20px;
  width: 96%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.card:nth-last-child(1):nth-child(odd) {
  /* width: 100%; */
}

.card h2 {
  margin-top: 0;
  font-size: 18px;
  margin-bottom: 14px;
}

.button-card {
  flex: 1 1 calc(33.333% - 8px);
  max-width: calc(33.333% - 8px);
  height: 128px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: none;
  background-color: white;
  border-radius: 6px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
  font-size: 1rem;
  font-weight: bold;
  text-align: center;
  gap: 10px;
}

.button-card:hover {
  background-color: white;
}

.button-card:active {
  background-color: #eee;
  transform: scale(0.99);
}

.button-card svg {
  margin-bottom: 0;
}

.button {
  width: 100%;
  padding: 12px;
  margin: 8px 0;
  font-size: 16px;
  color: white;
  background-color: #4CAF50;
  border: none;
  transition: background-color 0.2s ease, transform 0.2s ease;
  border-radius: 99px;
  cursor: pointer;
}

.button:active {
  background-color: #45a049;
  transform: scale(0.99);
}

select, input[type="time"] {
  width: 100%;
  padding: 10px;
  font-size: 16px;
  box-sizing: border-box;
  margin-bottom: 8px;
  border-radius: 99px;
  border: 2px solid white;
  background-color: #f2f2f2;
  color: #333;
}

select:focus,
input[type="time"]:focus {
  outline: none;
  border: 2px solid #4CAF50;
}

.logs {
  width: 100%;
  margin: auto;
}

.grid.logs {
  display: block;
}


.log-item {
  padding: 0;
  background: #fff;
  border-radius: 8px;
}

.log-entry {
  padding: -32px 8px;
  border-bottom: 1px solid #ddd;
}

.log-header {
  font-weight: bold;
  color: #555;
}

.log-message {
  color: #333;
  white-space: pre-wrap;
}

.log-timestamp {
  font-size: 0.9em;
  color: #777;
}

.logs-tab {
  display: block;
}

.log-container {
  background: green;
  white-space: pre-wrap;
}

#logContent {
  width: calc(100% - 8px);
  background-color: #fff;
  color: #ccc;
  border-radius: 8px;
  overflow-y: auto;
  font-family: monospace;
  white-space: pre-wrap;
}


.login-box {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  width: 300px;
}

.login-box input {
  width: 100%;
  padding: 10px;
  margin-top: 0.5rem;
  margin-bottom: 1rem;
  border: 1px solid #ccc;
  border-radius: 6px;
}

.login-box button {
  width: 100%;
  padding: 12px;
  margin: 8px 0;
  font-size: 16px;
  color: white;
  background-color: #4CAF50;
  border: none;
  transition: background-color 0.2s ease, transform 0.2s ease;
  border-radius: 99px;
  cursor: pointer;
}

.login-box button:hover {
  background: #0056b3;
}

.error { color: red; font-size: 0.9rem; margin-top: 0.5rem; }

.status-message {
  padding: 12px;
  margin: 10px auto;
  width: 96%;
  text-align: center;
  border-radius: 8px;
  color: white;
  font-weight: bold;
  font-size: 14px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

pre {
  font-family: "Segoe UI Emoji", "Noto Color Emoji", "Apple Color Emoji", sans-serif;
}