* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
body {
  background: #f9fafb;
  color: #333;
  line-height: 1.6;
}

/* Header */
.header {
  background: #2563eb;
  color: #fff;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.header .logo {
  font-size: 1.4rem;
  font-weight: bold;
}
.header .nav a {
  color: #fff;
  margin-left: 1rem;
  text-decoration: none;
}
.header .nav a:hover {
  text-decoration: underline;
}

/* Main Container */
.container {
  max-width: 800px;
  margin: 2rem auto;
  text-align: center;
  padding: 1rem;
}
.stats {
  display: flex;
  justify-content: space-around;
  margin-bottom: 1rem;
}
.stat-item {
  background: #e5e7eb;
  padding: 0.5rem 1rem;
  border-radius: 8px;
}
.value {
  display: block;
  font-size: 1.4rem;
  font-weight: bold;
}
.quote-display {
  background: #f3f4f6;
  padding: 1rem;
  border-radius: 8px;
  min-height: 80px;
  margin: 1rem 0;
}
.quote-input {
  width: 100%;
  height: 100px;
  padding: 0.8rem;
  font-size: 1rem;
  border: 2px solid #d1d5db;
  border-radius: 8px;
  resize: none;
}

/* Buttons */
.buttons {
  margin-top: 1rem;
}
button, select {
  padding: 0.6rem 1rem;
  margin: 0.5rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: #2563eb;
  color: #fff;
  font-size: 1rem;
  transition: background 0.3s;
}
button:hover, select:hover {
  background: #1e40af;
}

/* Sections */
.features, .about {
  max-width: 900px;
  margin: 2rem auto;
  padding: 1rem;
}
.features h2, .about h2 {
  margin-bottom: 1rem;
  color: #2563eb;
}
.features ul {
  list-style: disc;
  text-align: left;
  margin-left: 2rem;
}
.about p {
  text-align: center;
}

/* Footer */
.footer {
  background: #111827;
  color: #d1d5db;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
}

/* Dark Mode */
.dark-mode {
  background: #111827;
  color: #f3f4f6;
}
.dark-mode .quote-display {
  background: #1f2937;
}
.dark-mode .stat-item {
  background: #374151;
}