/* === CORE VARIABLES === */
:root {
    --deep-blue: #03254c;
    --primary-blue: #187bcd;
    --light-blue: #2a9df4;
    --pale-blue: #d0efff;
    --white: #FFFFFF;
    --gold: #FFD700;
    --light-gray: #f8f9fa;
    --dark-gray: #2c3e50;
    --blue-accent: #2a9df4;
    --blue-dark: #03254c;
    --blue-medium: #187bcd;
    --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* === BASE STYLES === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Quicksand', sans-serif;
  background: var(--white);
  color: var(--dark-gray);
  line-height: 1.6;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

h1, h2, h3 {
  font-weight: normal;
  letter-spacing: 1px;
}

/* === PAGE TRANSITIONS === */
.page-transition-overlay {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: white;
  z-index: 9999;
  transition: height 0.8s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-transition-overlay.active {
  height: 100%;
}

.page-transition-logo {
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.page-transition-logo.visible {
  opacity: 1;
  transform: scale(1);
}

/* === NAVIGATION === */
.back-home-btn {
  position: fixed;
  top: 20px;
  left: 20px;
  font-weight: bold;
  color: var(--primary-blue);
  text-decoration: none;
  z-index: 10000;
  transition: var(--transition-smooth);
}

.back-home-btn:hover {
  color: var(--deep-blue);
}

/* === SOCIAL SIDEBAR === */
.social-sidebar {
  position: fixed;
  right: 40px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 1000;
  gap: 20px;
}

.social-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
  font-size: 22px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
  position: relative;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .social-sidebar {
    flex-direction: row;
    bottom: 20px;
    top: auto;
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.9);
    padding: 10px 15px;
    border-radius: 50px;
  }
}