/* @import url('base.css');
@import url('components.css');
@import url('utilities.css'); */

/* Base Styles */
:root {
  --bg-dark: #0f172a;
  --card-dark: #1e293b;
  --text-dark: #e2e8f0;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Roboto, sans-serif;
  scroll-behavior: smooth;
  background-color: var(--bg-dark);
  color: var(--text-dark);
}

h1, h2, h3 {
  margin-bottom: 0.5rem;
  font-weight: 700;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* Header */
header {
  background: #020617;
  color: white;
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}
header nav a {
  margin-right: 1.5rem;
  font-weight: 500;
  transition: color 0.2s;
}
header nav a:hover {
  color: var(--accent);
}

/* Section Card */
.section-card {
  background: var(--card-dark);
  padding: 2rem;
  border-radius: 1rem;
  margin: 2rem auto;
  max-width: 800px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.2);
  transition: transform 0.3s;
}
.section-card:hover {
  transform: translateY(-6px);
}

/* Spinner */
.spinner {
  margin: 100px auto;
  border: 6px solid #e5e7eb;
  border-top: 6px solid var(--accent);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Back to Top Button */
#backToTop {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: none;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 50%;
  padding: 0.75rem;
  font-size: 1.25rem;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  transition: background 0.3s ease;
}
#backToTop:hover {
  background: var(--accent-hover);
}

/* Footer */
footer {
  text-align: center;
  padding: 1.5rem;
  background: #0f172a;
  font-size: 0.9rem;
  color: #9ca3af;
}
footer a {
  color: var(--accent);
}