:root {
  --primary: #4f8cff;
  --secondary: #f5f7fa;
  --accent: #ffb347;
  --danger: #ff4d4f;
  --radius: 10px;
  --shadow: 0 2px 8px rgba(0,0,0,0.07);
  --font: 'Segoe UI', Arial, sans-serif;
}

body {
  font-family: var(--font);
  background: var(--secondary);
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

h1 {
  color: var(--primary);
  margin-top: 2rem;
}

form, .card {
  background: #fff;
  padding: 2rem 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 1.5rem 0;
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

input, select, button {
  padding: 0.7rem;
  border-radius: var(--radius);
  border: 1px solid #dbeafe;
  font-size: 1rem;
  outline: none;
  transition: border 0.2s;
}

input:focus, select:focus {
  border: 1.5px solid var(--primary);
}

button {
  background: var(--primary);
  color: #fff;
  border: none;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.2s;
}

button:hover, button:focus {
  background: #2563eb;
}

#message, #error {
  text-align: center;
  margin-top: 0.5rem;
  font-weight: 500;
}

#message {
  color: var(--primary);
}

#error {
  color: var(--danger);
}

#controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

ul#notes-list {
  list-style: none;
  padding: 0;
  margin: 0;
  width: 100%;
  max-width: 400px;
}

ul#notes-list li {
  background: #f0f4ff;
  margin-bottom: 0.7rem;
  padding: 1rem;
  border-radius: var(--radius);
  box-shadow: 0 1px 3px rgba(79,140,255,0.06);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

ul#notes-list li span {
  font-size: 0.95em;
  color: #888;
}

a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  margin-top: 1rem;
  display: inline-block;
}

a:hover {
  text-decoration: underline;
}

@media (max-width: 600px) {
  form, .card, ul#notes-list {
    max-width: 98vw;
    padding: 1rem 0.5rem;
  }
  h1 {
    font-size: 1.3rem;
  }
}