/* --- Core Variables & Base Styles --- */
:root {
  /* Dark Theme Tokens */
  --bg-color: #0f0f1a;
  --nav-bg-color: rgba(18, 18, 35, 0.75);
  --text-color: #f0f0ff;
  --text-color-muted: #9494b8;
  --card-bg-color: #1a1a2e;
  --modal-bg-color: #1e1e36;
  --input-bg-color: #252545;
  --border-color: rgba(255, 255, 255, 0.08);
  --accent-color: #8c52ff;
  --accent-hover-color: #a375ff;
  --shadow-color: rgba(0, 0, 0, 0.4);
  --skeleton-color: #242445;
  
  /* Glassmorphism Tokens */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: 12px;
  
  /* Spacing */
  --section-spacing: 60px;
  --container-padding: 40px;
}

:root.light-theme {
  --bg-color: #f5f7fb;
  --nav-bg-color: rgba(255, 255, 255, 0.8);
  --text-color: #1a1c24;
  --text-color-muted: #64748b;
  --card-bg-color: #ffffff;
  --modal-bg-color: #ffffff;
  --input-bg-color: #f1f5f9;
  --border-color: #e2e8f0;
  --accent-color: #3b82f6;
  --accent-hover-color: #2563eb;
  --skeleton-color: #e2e8f0;
  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-border: rgba(0, 0, 0, 0.05);
}

* {
  box-sizing: border-box;
  font-family: 'Poppins', system-ui, -apple-system, sans-serif;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  padding-top: 80px;
  transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1), color 0.4s ease;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button {
  border: none;
  background: none;
  font-family: inherit;
  cursor: pointer;
  outline: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
  background: var(--input-bg-color);
  border-radius: 10px;
  border: 3px solid var(--bg-color);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-color);
}