@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css');
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=Open+Sans:wght@300;400;600&display=swap');

:root {
  /* Random Palette: #2980B9 (Blue), #E74C3C (Red), #34495E (Navy), #FDFAFF (Light) */
  --primary-color: #2980B9;
  --secondary-color: #2471A3;
  --accent-color: #E74C3C;
  --light-color: #FDFAFF;
  --dark-color: #34495E;
  
  --gradient-primary: linear-gradient(180deg, #2980B9 0%, #1A5276 100%);
  --hover-color: #1F618D;
  --background-color: #F4F6F7;
  --text-color: #2C3E50;
  
  --border-color: rgba(41, 128, 185, 0.2);
  --divider-color: rgba(52, 73, 94, 0.1);
  --shadow-color: rgba(41, 128, 185, 0.1);
  --highlight-color: #F39C12;
  
  --main-font: 'Playfair Display', serif;
  --alt-font: 'Open Sans', sans-serif;
}

/* Elegant Soft Shadows */
.neuro-flat {
    background: #ffffff;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    border: 1px solid rgba(0,0,0,0.02);
    border-radius: 4px;
}

body { font-family: var(--alt-font); color: var(--text-color); background-color: var(--background-color); line-height: 1.6; }
h1, h2, h3 { font-family: var(--main-font); color: var(--dark-color); }

/* Menu */
#menu-toggle { display: none; }
.nav-links { display: none; }
#menu-toggle:checked ~ .nav-links { display: block; }