/* Theme Variables */
:root {
  --bg-color: #f3f4f6;
  --text-color: #1f2937;
  --subtext-color: #6b7280;
  --header-bg: #ffffff;
  --shadow: rgba(0, 0, 0, 0.05);
}

body.dark {
  --bg-color: #1f2937;
  --text-color: #f9fafb;
  --subtext-color: #9ca3af;
  --header-bg: #111827;
  --shadow: rgba(255, 255, 255, 0.05);
}

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

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

/* Container Box */
.welcome-container {
  background-color: var(--header-bg);
  padding: 3rem 2rem;
  border-radius: 0.75rem;
  box-shadow: 0 15px 25px var(--shadow);
  text-align: center;
  max-width: 480px;
  width: 100%;
}

/* Title */
.welcome-title {
  font-size: 1.75rem;
  font-weight: bold;
  color: var(--text-color);
  margin-bottom: 1rem;
}

/* Subtitle */
.welcome-subtitle {
  font-size: 1rem;
  color: var(--subtext-color);
  margin-bottom: 2rem;
}

/* Button */
.login-btn {
  display: inline-block;
  background-color: #3b82f6;
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.login-btn:hover {
  background-color: #2563eb;
}