/* ========================================
   Global Variables & Root Styles
   ======================================== */
:root {
  /* Colors - Default Light Mode */
  --primary-color: #1a375c;
  --background-color: lightblue; /* AliceBlue - Light Bluish */
  --text-color: #333;
  --secondary-bg: #f2f9fc; /* Slightly darker light blue */
  --footer-bg: #dbeafe; /* Light Blue Grey */
  --header-bg: #ffffff;
  --header-text: #333333;
  --card-bg: #ffffff;
  --border-color: #bfdbfe; /* Blue tint border */
  
  /* Table Colors */
  --table-header-bg: #e0f2fe; /* Light Blue */
  --table-row-hover: #f0f9ff;
  --table-border: #bfdbfe;
  --pagination-bg: #dbeafe;

  /* Spacing */
  --spacing-xs: clamp(0.5rem, 1vw, 0.75rem);
  --spacing-sm: clamp(1rem, 2vw, 1.5rem);
  --spacing-md: clamp(1.5rem, 3vw, 2.5rem);
  --spacing-lg: clamp(2rem, 4vw, 3.5rem);
  --spacing-xl: clamp(3rem, 6vw, 5rem);
  --container-padding: clamp(1.25rem, 4%, 2.5rem);
  --section-spacing: clamp(2.5rem, 5vw, 4.5rem);
  
  /* Border Radius */
  --border-radius: clamp(0.5rem, 0.5vw, 0.875rem);
  --border-radius-lg: clamp(0.875rem, 2vw, 1.25rem);
}

/* Dark Theme */
html[data-theme="dark"] {
  --primary-color: #5ab9a8;
  --background-color: #20232a;
  --text-color: #ffffff;
  --secondary-bg: #292d36;
  --footer-bg: #191c22;
  --header-bg: #ffffff;
  --header-text: #333333;
  --card-bg: #292d36;
  --border-color: #444;
  
  /* Table Colors */
  --table-header-bg: #1a1d23;
  --table-row-hover: #343a48;
  --table-border: #444;
  --pagination-bg: #343a48;
}

/* ========================================
   Global Resets & Base Styles
   ======================================== */
html, body {
  overflow-y: scroll !important; /* forces scrollbar even if not needed */
  overflow-x: hidden; /* Prevent horizontal scroll */
  width: 100%;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  transition: background-color 0.01s ease, color 0.01s ease;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ========================================
   Common Layout Classes
   ======================================== */
.container {
  max-width: 98%;
  margin: 0 auto;
  padding: 0 clamp(1rem, 2.5%, 1.75rem);
  box-sizing: border-box;
  width: 100%;
}

.main-wrapper {
  display: flex;
  flex-direction: column;
  padding-top: 50px;
  padding-bottom: 50px;
  flex: 1;
  width: 100%;
  box-sizing: border-box;
}

/* Common Section Styling */
.section {
  flex: 1;
  min-width: 300px;
  margin-bottom: 80px;
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.section h2 {
  font-size: 1.8rem;
  color: var(--text-color);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.section h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background-color: var(--primary-color);
}

.highlight {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}


/* List Styles in Sections */
.section ul {
  list-style-type: none;
  padding: 0;
}

.section ul li {
  margin-bottom: 15px;
  display: flex;
  align-items: center;
}

.section ul li:before {
  content: "•";
  color: var(--primary-color);
  font-weight: bold;
  display: inline-block;
  width: 1em;
  margin-right: 0.5em;
}

/* ========================================
   Theme Toggle Switch
   ======================================== */
.theme-switch {
  position: relative;
  width: 60px;
  height: 30px;
  margin-left: 15px;
  z-index: 10001; /* Ensure it stays on top */
  cursor: pointer;
}

.theme-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: 0.4s;
  border-radius: 30px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: 0.4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--primary-color);
}

input:checked + .slider:before {
  transform: translateX(30px);
}

.slider .icon {
  position: absolute;
  top: 7px;
  font-size: 14px;
  transition: opacity 0.3s ease;
  color: #333;
}

.slider .sun-icon {
  left: 8px;
  opacity: 1;
}

.slider .moon-icon {
  right: 8px;
  opacity: 0;
  color: #333;
}

input:checked + .slider .sun-icon {
  opacity: 0;
}

input:checked + .slider .moon-icon {
  opacity: 1;
}