/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Base styles */
html, body {
  font-family: 'Inter', sans-serif;
  background-color: #0b1120;
  color: #e2e8f0;
  line-height: 1.7;
}

a {
  color: #38bdf8;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.hero-portrait {
  width: 150px;
  height: 150px;
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: 1rem;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
  border: 4px solid #38bdf8;
}

/* Background animation */
.stars-background {
  position: fixed;
  inset: 0;
  background: url('../assets/images/stars_bg.png') repeat;
  opacity: 0.2;
  z-index: -1;
  animation: scroll 120s linear infinite;
}

@keyframes scroll {
  from { background-position: 0 0; }
  to { background-position: 0 1000px; }
}

/* Layout */
.page-wrapper {
  display: flex;
  min-height: 100vh;
}

.side-banner {
  width: 15%;
  background-repeat: repeat-y;
  background-position: center;
  background-size: contain;
  opacity: 0.7;
}

.left-banner {
  background-image: url('../assets/images/star-banner.gif');
}

.right-banner {
  background-image: url('../assets/images/star-banner.gif');
}

/* Main content */
.main-content {
  flex: 1;
  max-width: 700px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

/* Header */
header {
  text-align: center;
  margin-bottom: 2.5rem;
}

header h1 {
  font-size: 2.5rem;
  font-weight: 800;
  color: #93c5fd;
}

.subtitle {
  font-size: 1rem;
  color: #cbd5e1;
  margin-top: 0.5rem;
}

nav {
  margin-top: 1.5rem;
}

nav a {
  margin: 0 0.75rem;
  font-weight: 600;
  color: #60a5fa;
  transition: color 0.2s;
}

nav a:hover {
  color: #ffffff;
}

nav a.active {
  border-bottom: 2px solid #3b82f6;
}

/* Sections */
section {
  margin-bottom: 2rem;
}

section h2 {
  font-size: 1.4rem;
  color: #e0f2fe;
  margin-bottom: 0.5rem;
}

ul {
  list-style: none;
  padding-left: 0;
}

ul li {
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

/* Footer */
footer {
  text-align: center;
  margin-top: 3rem;
  font-size: 0.9rem;
  color: #9ca3af;
}

/* Mobile-specific override */
@media (max-width: 768px) {
    .side-banner {
        display: none;
    }

    .main-content {
        margin: 0 auto;
        width: 100%;
    }

    header {
        font-size: 1rem;
    }

    body {
        font-size: 0.95rem;
    }

    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    nav a {
        font-size: 0.85rem;
    }

    ul {
        list-style: none;
        padding-left: 0;
    }

    ul li {
        margin-bottom: 0.3rem;
        font-size: 0.95rem;
    }
}