/* CSS Reset */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Base typography */
body {
  line-height: 1.6;
  font-family: sans-serif;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Light Theme Defaults */
:root {
  /* Branding */
  --theme-color: #df8020;
  
  /* Colors */
  --background-color: #fefefe;
  --text-color: #333;
  --heading-color: var(--theme-color);
  --strong-color: #222;
  --muted-text: #555;
  --border-color: #e0e0e0;
  --link-color: var(--theme-color);
  --accent-color: #ddd;
}

/* Dark Theme Overrides */
@media (prefers-color-scheme: dark) {
  :root {
    /* Branding remains the same */
    --theme-color: #df8020;
    
    /* Colors */
    --background-color: #181828;
    --text-color: #ddd;
    --heading-color: var(--theme-color);
    --strong-color: #fff;
    --muted-text: #aaa;
    --border-color: #333;
    --link-color: var(--theme-color);
    --accent-color: #222;
  }
}

/* Global Page Styles */
html {
  font-size: 16px;
}

body {
  background-color: var(--background-color);
  color: var(--text-color);
  padding: 20px;
}

/* Link Styling */
a {
  color: var(--link-color);
  font-weight: bold;
}

/* Container for main content */
main {
  max-width: 960px;
  margin: 80px auto 40px;
  padding: 20px;
}

/* Section Styling */
section {
  margin-bottom: 80px;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  color: var(--heading-color);
  margin-bottom: 0.5rem;
  font-weight: 600;
}
h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
h2 {
  font-size: 2rem;
  margin-bottom: 0.8rem;
}
h3 {
  font-size: 1.75rem;
  margin-bottom: 0.8rem;
}

/* Paragraphs and Lists */
p, li {
  font-size: 1rem;
  margin-bottom: 0.8rem;
}
ul, ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}
li::marker {
  color: var(--theme-color);
}

/* Code Blocks and Inline Code */
code {
  font-family: monospace;
  background-color: var(--accent-color);
  padding: 0.2em 0.4em;
  border-radius: 3px;
}

/* Logo Container */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px;
  position: absolute;
  top: 0;
  left: 0;
}
.logo img {
  width: 40px;
  height: auto;
}
.logo-text {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--strong-color);
}

/* Emphasis */
em, strong {
  color: var(--strong-color);
}

/* Buttons */
button,
input[type="submit"] {
  background-color: var(--theme-color);
  color: #fff;
  border: none;
  padding: 0.6em 1.2em;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.3s ease;
}
button:hover,
input[type="submit"]:hover {
  background-color: darken(var(--theme-color), 10%);}
/* Authentication Overlay */
.auth-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.auth-modal {
  position: relative;
  background: var(--background-color);
  color: var(--text-color);
  padding: 20px;
  border-radius: 8px;
  width: 300px;
  max-width: 90%;
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
.auth-modal .close {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: none;
  font-size: 1.2rem;
  color: var(--text-color);
  cursor: pointer;
}
.auth-modal label {
  display: block;
  margin-top: 0.5rem;
}
.auth-modal input {
  width: 100%;
  padding: 0.4rem;
  margin-bottom: 0.8rem;
}
.auth-modal .tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}
.auth-modal .message {
  color: var(--muted-text);
  margin-bottom: 0.5rem;
}