:root {
  --bg: #050505;
  --panel: #0b0b0b;
  --green: #ffa64c;
  --green-dim: #a37a2f;
  --border: #5f3d1f;
  --accent: #ffc77d;
  --selection: rgba(255, 166, 76, 0.15);
  --scrollbar-track: rgba(0, 0, 0, 0.2);
  --scrollbar-thumb: #a37a2f;
  --scrollbar-hover: #ffc77d;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: #000;
  height: 100%;
}

body {
  background: radial-gradient(circle at center, #0b0b0b 0%, #000 70%);
  color: var(--green);
  font-family: "JetBrains Mono", "Courier New", monospace;
  overflow: hidden;
}

::selection {
  background: var(--green);
  color: #000;
}

.content::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(0,0,0,.22),
      rgba(0,0,0,.22) 1px,
      transparent 1px,
      transparent 3px
    ),
    radial-gradient(circle at center, transparent 60%, rgba(0,0,0,.55) 100%);
  z-index: 1;
}

.window {
  position: relative;
  width: 92vw;
  height: 88vh;
  margin: 6vh auto;
  border: 2px solid var(--border);
  background: var(--panel);
  box-shadow: 0 0 40px rgba(255, 166, 76, 0.15);
  display: grid;
  grid-template-rows: auto 1fr;
}

.titlebar {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--green-dim);
  font-size: 14px;
}

.content {
  position: relative;
  display: grid;
  grid-template-columns: 320px 1fr;
  height: 100%;
}

.sidebar {
  border-right: 1px solid var(--border);
  padding: 18px;
}

.sidebar h3 {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--green-dim);
  letter-spacing: 1px;
}

.tree {
  font-size: 15px;
  line-height: 1.8;
}

.tree a {
  color: var(--green);
  text-decoration: none;
  display: block;
  padding: 4px 6px;
}

.tree a::before {
  content: "[+] ";
  color: var(--green-dim);
}

.tree a:hover {
  background: var(--selection);
  border-left: 2px solid var(--green);
}

.terminal {
  padding: 28px 32px;
  font-size: 16px;
  line-height: 1.7;
}

.prompt {
  color: var(--green-dim);
}

.name {
  font-size: 42px;
  margin: 0 0 12px;
  color: var(--accent);
}

.cursor::after {
  content: "▮";
  animation: blink 1s steps(1) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.block {
  margin-top: 18px;
  max-width: 720px;
}

.hint {
  color: var(--green-dim);
  font-size: 14px;
  margin-top: 20px;
  padding: 10px;
  border-left: 3px solid var(--green-dim);
  background: rgba(163, 122, 47, 0.05);
}

@media (max-width: 900px) {
  .content {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}