body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4f7fb;
  color: #1a2744;
}

.hidden { display: none; }

.screen.active {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.login-card {
  background: white;
  padding: 40px;
  width: 420px;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.login-card img {
  width: 100px;
  display: block;
  margin: auto;
}

.login-card h1,
.login-card p {
  text-align: center;
}

.tabs {
  display: flex;
  gap: 10px;
  margin: 20px 0;
}

input, select, textarea, button {
  width: 100%;
  padding: 12px;
  margin-top: 10px;
  border-radius: 10px;
  border: 1px solid #ddd;
  box-sizing: border-box;
}

button {
  background: #18b6d9;
  color: white;
  border: none;
  cursor: pointer;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #1a2744;
  color: white;
  padding: 20px;
}

.small-logo {
  width: 50px;
}

.header-left {
  display: flex;
  gap: 15px;
  align-items: center;
}

.calendar-section,
.toolbar,
#entries {
  padding: 20px;
}

.entry-card {
  background: white;
  padding: 20px;
  border-radius: 15px;
  margin-bottom: 15px;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  justify-content: center;
  align-items: center;
}

.modal-content {
  background: white;
  width: 500px;
  padding: 30px;
  border-radius: 20px;
}

.note {
  font-size: 12px;
  color: #666;
}