* { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: "Segoe UI", sans-serif;
  background: linear-gradient(to right, #4a90e2, #6fc1ff);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px;
}
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 400px;
  color: #fff;
}
.calendar-section, .note-section, .verse-section {
  background: #fff;
  max-width: 400px;
  width: 100%;
  margin: 10px 0;
  border-radius: 10px;
  padding: 10px;
}
.calendar-section.dark-mode, .note-section.dark-mode, .verse-section.dark-mode, .app-header.dark-mode {
  background: #2c3e50;
  color: #ecf0f1;
}
textarea {
  width: 100%;
  height: 100px;
  border-radius: 5px;
  border: 1px solid #ccc;
  margin-top: 5px;
  padding: 5px;
}
button {
  margin-top: 5px;
  width: 100%;
  background: #4a90e2;
  color: #fff;
  border: none;
  padding: 8px;
  border-radius: 5px;
  cursor: pointer;
}
button:hover {
  background: #3a7bc0;
}
#month-year { text-align: center; font-weight: bold; margin: 5px; }
.day-names, .days { display: grid; grid-template-columns: repeat(7, 1fr); }
.day-names div, .days div { text-align: center; padding: 4px; }
.days div.selected { background: #6fc1ff; border-radius: 50%; color: #fff; }