@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css');

:root {
  /* Site Colors: Blue/Teal Palette */
  --primary-color: #2980B9;
  --secondary-color: #2C3E50;
  --accent-color: #1ABC9C;
  --light-color: #ECF0F1;
  --dark-color: #0F0766;
  
  /* Derived & Functional Colors */
  --gradient-primary: linear-gradient(135deg, #3498DB 0%, #2980B9 100%);
  --hover-color: #16A085;
  --background-color: #F8FAFC;
  --text-color: #34495E;
  --border-color: rgba(41, 128, 185, 0.2);
  --divider-color: rgba(44, 62, 80, 0.1);
  --shadow-color: rgba(44, 62, 80, 0.15);
  --highlight-color: #F1C40F; /* Complementary Yellow */
  
  /* Fonts */
  --main-font: 'Montserrat', sans-serif;
  --alt-font: 'Open Sans', sans-serif;
}

/* Base Resets & Typography */
html { scroll-behavior: smooth; }
body {
    font-family: var(--alt-font);
    color: var(--text-color);
    background-color: var(--background-color);
    line-height: 1.6;
    overflow-x: hidden;
}
h1, h2, h3, h4, h5, h6 {
    font-family: var(--main-font);
    color: var(--secondary-color);
}

/* Neumorphism & Card Styles */
.neu-card {
    background: var(--background-color);
    border-radius: 15px;
    box-shadow: 8px 8px 16px rgba(163, 177, 198, 0.3), 
               -8px -8px 16px rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255,255,255,0.5);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.neu-card:hover {
    transform: translateY(-5px);
    box-shadow: 12px 12px 20px rgba(163, 177, 198, 0.4), 
               -12px -12px 20px rgba(255, 255, 255, 0.9);
}

/* Button Styles */
.btn-primary {
    background: var(--gradient-primary);
    color: white;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(41, 128, 185, 0.4);
    display: inline-block;
}
.btn-primary:hover {
    background: var(--hover-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(22, 160, 133, 0.5);
}

/* Section Specifics */
.section-padding { padding-top: 10dvh; padding-bottom: 10dvh; }
.hero-overlay { background: linear-gradient(rgba(15, 7, 102, 0.7), rgba(44, 62, 80, 0.7)); }

/* Timeline Feature */
.timeline-item {
    position: relative;
    padding-left: 2rem;
    border-left: 3px solid var(--accent-color);
}
.timeline-item::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 0;
    width: 17px;
    height: 17px;
    background: var(--highlight-color);
    border-radius: 50%;
}

/* Navigation Mobile Logic (No JS) */
#nav-toggle:checked ~ nav ul {
    max-height: 500px;
    opacity: 1;
    padding-top: 20px;
}
@media (min-width: 768px) {
    #nav-toggle:checked ~ nav ul, nav ul {
        max-height: none;
        opacity: 1;
        display: flex;
        padding-top: 0;
    }
}