/* Global Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
  background: #fdfdfd;
  color: #222;
  transition: background 0.3s, color 0.3s;
}

.container {
  width: 90%;
  max-width: 900px;
  margin: auto;
  padding: 20px;
}

/* Header */
header {
  background: #e3f2fd; /* light blue */
  color: #0d47a1; /* deep blue text */
  padding: 25px 0;
  text-align: center;
  border-bottom: 2px solid #bbdefb;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

header h1 {
  margin-bottom: 5px;
  font-size: 2em;
}

header p {
  font-size: 1.1em;
  margin-bottom: 10px;
  color: #1565c0;
}

header button {
  margin-top: 10px;
  padding: 8px 14px;
  border: none;
  border-radius: 5px;
  background: #42a5f5;
  color: #fff;
  cursor: pointer;
  font-size: 0.9em;
  transition: 0.3s;
}

header button:hover {
  background: #1e88e5;
}

header nav ul {
  list-style: none;
  margin-top: 15px;
}

header nav ul li {
  display: inline;
  margin: 0 12px;
}

header nav ul li a {
  color: #0d47a1;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s;
}

header nav ul li a:hover {
  color: #1565c0;
}

/* Sections */
section {
  padding: 40px 0;
  border-bottom: 1px solid #eee;
}

h2 {
  margin-bottom: 15px;
  color: #1565c0;
  font-size: 1.6em;
  border-left: 5px solid #42a5f5;
  padding-left: 10px;
}

ul {
  list-style: disc;
  padding-left: 20px;
  margin-top: 10px;
}

p {
  margin-bottom: 10px;
}

/* Contact Form */
form {
  margin-top: 15px;
  display: flex;
  flex-direction: column;
}

form input,
form textarea {
  margin-bottom: 12px;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1em;
  transition: border 0.3s;
}

form input:focus,
form textarea:focus {
  border: 1px solid #42a5f5;
  outline: none;
}

form button {
  padding: 12px;
  background: #42a5f5;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1em;
  font-weight: 600;
  transition: 0.3s;
}

form button:hover {
  background: #1e88e5;
}

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  background: #e3f2fd;
  color: #0d47a1;
  font-size: 0.9em;
  margin-top: 20px;
  border-top: 2px solid #bbdefb;
}

/* Dark Theme */
body.dark {
  background: #1e1e1e;
  color: #f5f5f5;
}

body.dark header,
body.dark footer {
  background: #121212;
  color: #e3f2fd;
}

body.dark h2 {
  color: #90caf9;
  border-left-color: #42a5f5;
}

body.dark a {
  color: #90caf9;
}