/* CSS Variables */
:root {
  --primary: #007bff;
  --primary-dark: #0056b3;
  --light-bg: #eef2f5;
  --white: #ffffff;
  --text-dark: #333;
  --text-medium: #555;
  --flash-bg: #fff3cd;
  --flash-border: #ffeeba;
  --flash-text: #856404;
  --border-radius: 8px;
  --transition-speed: 0.3s;
}

/* Global Styles */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--light-bg);
  margin: 0;
  padding: 0;
  line-height: 1.6;
  color: var(--text-dark);
}

/* Navbar */
.navbar {
  background-color: var(--primary);
  padding: 10px 0;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.navbar-container {
  max-width: 960px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
}

.navbar-logo {
  font-size: 1.75rem;
  color: var(--white);
  text-decoration: none;
  font-weight: bold;
}

.navbar-links a {
  color: var(--white);
  text-decoration: none;
  margin-left: 20px;
  font-weight: 500;
  transition: color var(--transition-speed);
}

.navbar-links a:hover {
  color: var(--primary-dark);
}

/* Content Container */
.content {
  max-width: 800px;
  margin: 40px auto;
  padding: 2rem;
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: 0 3px 12px rgba(0,0,0,0.1);
}

/* Flash Messages */
.flash-messages {
  list-style: none;
  margin: 0 0 1rem 0;
  background: var(--flash-bg);
  border: 1px solid var(--flash-border);
  border-radius: var(--border-radius);
  padding: 1rem;
  color: var(--flash-text);
}

/* Form Elements */
input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 10px;
  margin: 0.5rem 0 1rem;
  border: 1px solid #ccc;
  border-radius: var(--border-radius);
  font-size: 1rem;
  box-sizing: border-box;
}

input[type="submit"] {
  background-color: var(--primary);
  color: var(--white);
  padding: 10px 16px;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: bold;
  transition: background-color 0.2s ease;
}

input[type="submit"]:hover {
  background-color: var(--primary-dark);
}

a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-speed);
}

a:hover {
  color: var(--primary-dark);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  padding: 4rem 1rem;
  text-align: center;
}

.hero .hero-content {
  max-width: 800px;
  margin: auto;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

/* Call-to-Action Button */
.cta-button {
  background-color: var(--white);
  color: var(--primary);
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  border-radius: var(--border-radius);
  font-weight: bold;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

.cta-button:hover {
  background-color: #f0f0f0;
  color: var(--primary-dark);
}

/* Features Section */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 3rem auto;
  max-width: 1000px;
  padding: 0 1rem;
}

.feature {
  background: var(--white);
  border: 1px solid #ddd;
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: 0 3px 12px rgba(0,0,0,0.1);
  text-align: center;
  transition: transform var(--transition-speed);
}

.feature:hover {
  transform: translateY(-5px);
}

.feature h2 {
  color: var(--primary);
  margin-bottom: 1rem;
}

.feature p {
  color: var(--text-medium);
  font-size: 1rem;
  line-height: 1.5;
}

/* Admin Panel Container */
.admin-panel {
  padding: 1rem;
}

.admin-panel h2 {
  text-align: center;
  margin-bottom: 1rem;
}

/* Back Link */
.back-link {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--primary);
  font-weight: bold;
  text-decoration: none;
  transition: color var(--transition-speed);
}

.back-link:hover {
  color: var(--primary-dark);
}

/* User List */
.user-list {
  margin-bottom: 2rem;
}

.user-list-items {
  list-style: none;
  padding: 0;
}

.user-item {
  background: #f8f8f8;
  padding: 0.75rem 1rem;
  border: 1px solid #ddd;
  border-radius: var(--border-radius);
  margin-bottom: 0.5rem;
}

/* Form Section */
.form-section {
  margin-bottom: 2rem;
}

/* Admin Form */
.admin-form {
  display: flex;
  flex-direction: column;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
}

.form-group input[type="text"],
.form-group input[type="password"] {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: var(--border-radius);
  box-sizing: border-box;
}

/* Buttons */
.btn {
  background-color: var(--primary);
  color: var(--white);
  padding: 10px 16px;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: bold;
  transition: background-color var(--transition-speed);
}

.btn:hover {
  background-color: var(--primary-dark);
}

.btn.danger {
  background-color: #d9534f;
}

.btn.danger:hover {
  background-color: #c9302c;
}
/* Pagination Styles */
.pagination {
  text-align: center;
  margin: 1rem 0;
}

.page-link {
  display: inline-block;
  margin: 0 0.5rem;
  padding: 0.5rem 1rem;
  background-color: var(--primary);
  color: var(--white);
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: background-color var(--transition-speed);
}

.page-link:hover {
  background-color: var(--primary-dark);
}

.page-info {
  font-weight: bold;
  color: var(--text-dark);
}