:root {
      --bg-color: #050505;
      --card-bg: #111111;
      --border-color: #333333;
      --accent: #72c2ff;
      --text-main: #f5f5f5;
      --text-muted: #72c2ff;
      --link: #72c2ff;

  --banner-width: 400px;   /* keep the banner size exactly */
  --gap: 12px;             /* space between banner and content (ARC-like) */
}

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

body{
  min-height: 100vh;
  background: radial-gradient(circle at top, #111 0, #050505 45%, #000 100%);
  color: var(--text-main);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  padding: 2rem 1rem 2rem calc(var(--banner-width) + var(--gap));
}

/* LEFT BANNER */
.left-banner{
  position: fixed;
  left: 0;
  top: 0;
  width: var(--banner-width);
  height: 100vh;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  z-index: 9999;
}
.left-banner img{
  width: 100%;
  height: 100%;
  object-fit: cover;   /* fills the whole left column */
  display: block;
}

/* PAGE WIDTH */
.page{
  width: 100%;
  max-width: 1100px;
}

/* MOBILE */
@media (max-width: 900px){
  .left-banner{ display:none; }
  body{ padding: 1.5rem; }
}

/* SIDEBAR (match ARC) */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 260px;
  flex-shrink: 0;
}

.sidebar-card {
  background: var(--card-bg, #111111);
  border: 1px solid var(--border-color, #333333);
  border-radius: 1rem;
  padding: 1rem 1.1rem;
}

.sidebar-card h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
  color: var(--accent);
}

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

.sidebar-card li + li {
  margin-top: 0.4rem;
}

.sidebar a {
  color: var(--link);
  text-decoration: none;
}

.sidebar a:hover {
  text-decoration: underline;
}
/* Make images and embeds scale down */
img, video, iframe {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Prevent random overflow on small screens */
html, body {
  max-width: 100%;
  overflow-x: hidden;
}