/* Theme Variables */
:root {
  --bg-color: #f3f4f6;
  --text-color: #1f2937;
  --subtext-color: #6b7280;
  --header-bg: #ffffff;
  --shadow: rgba(0, 0, 0, 0.05);
  --input-border: #d1d5db;
  --primary-btn-bg: #3b82f6;
  --primary-btn-hover: #2563eb;
}

body.dark {
  --bg-color: #1f2937;
  --text-color: #f9fafb;
  --subtext-color: #9ca3af;
  --header-bg: #111827;
  --shadow: rgba(255, 255, 255, 0.05);
  --input-border: #374151;
  --primary-btn-bg: #3b82f6;
  --primary-btn-hover: #2563eb;
}

/* Base Styles */
body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
}

/* Login Page Layout */
.login-page {
  background-color: var(--bg-color);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

/* Login Container */
.login-container {
  background-color: var(--header-bg);
  padding: 2rem;
  border-radius: 0.5rem;
  box-shadow: 0 10px 25px var(--shadow);
  width: 100%;
  max-width: 400px;
}

/* Login Title */
.login-title {
  font-size: 1.5rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

/* Login Form */
.login-form {
  display: flex;
  flex-direction: column;
}

/* Form Label */
.login-form label {
  margin-bottom: 0.25rem;
  font-weight: 500;
  color: var(--text-color);
}

/* Input Fields */
.login-form input {
  padding: 0.5rem;
  margin-bottom: 1rem;
  border: 1px solid var(--input-border);
  border-radius: 0.375rem;
  font-size: 1rem;
}

/* Input Focus */
.login-form input:focus {
  outline: none;
  border-color: var(--primary-btn-bg);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Submit Button */
.login-form button {
  padding: 0.75rem;
  background-color: var(--primary-btn-bg);
  color: white;
  border: none;
  border-radius: 0.375rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

/* Submit Button Hover */
.login-form button:hover {
  background-color: var(--primary-btn-hover);
}

/* Footer */
.login-footer {
  margin-top: 1rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--subtext-color);
}

/* Footer Links */
.login-footer a {
  color: var(--primary-btn-bg);
  text-decoration: none;
}

/* Footer Link Hover */
.login-footer a:hover {
  text-decoration: underline;
}