:root {
  --bg-dark: #0c0a10;
  --bg-light: #f8f6f9;
  --text-dark: #e9e8f3;
  --text-light: #1b1b1f;
  --accent: linear-gradient(135deg, #7B2FF7, #9F44D3, #E1467C);
  --purple-neon: #9f44d3;
  --sidebar-width: 260px;
  --transition: 0.3s ease;
}


* {
  box-sizing: border-box;
}

html {
  width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-dark);
  transition: background-color var(--transition), color var(--transition);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}


#sidebar {
  width: var(--sidebar-width);
  background: rgba(20, 16, 27, 0.95);
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px;
  overflow-y: auto;
  transition: transform var(--transition), background var(--transition);
}

#sidebar.hidden {
  transform: translateX(-100%);
}

#sidebar h2 {
  background: var(--accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

#sidebar a {
  display: block;
  color: var(--text-dark);
  text-decoration: none;
  margin: 10px 0;
  padding: 8px 12px;
  border-radius: 8px;
  transition: background var(--transition), color var(--transition);
}

#sidebar a:hover {
  background: rgba(123, 47, 247, 0.15);
}


#content {
  flex: 1;
  overflow-y: auto;
  padding: 40px 50px;
  background: var(--bg-dark);
  transition: background var(--transition), color var(--transition);
}

h1 {
  font-size: 2rem;
  background: var(--accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h1, h2, h3 {
  font-family: 'Inter', 'Segoe UI', sans-serif;
  margin-top: 2rem;
  margin-bottom: 1rem;
  letter-spacing: 0.3px;
}

strong {
  color: var(--purple-neon);
}


pre {
  background: #181420;
  color: #e8e6f3;
  padding: 18px;
  border-radius: 10px;
  overflow-x: auto;
  font-family: monospace;
  border-left: 4px solid var(--purple-neon);
  transition: background var(--transition), color var(--transition), border var(--transition);

  max-width: 100%;
  box-sizing: border-box;
}

pre code {
  display: block;
  max-width: 100%;
  white-space: pre;
}


#topbar {
  position: fixed;
  left: var(--sidebar-width);
  right: 0;
  top: 0;
  height: 60px;
  background: rgba(20, 16, 27, 0.95);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: left var(--transition), background var(--transition);
  z-index: 10;
}

#topbar.hidden {
  left: 0;
}

#logo {
  font-weight: 700;
  font-size: 1.2rem;
  background: var(--accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  user-select: none;
}

.top-buttons {
  display: flex;
  align-items: center;
  gap: 10px;
}

.top-buttons button {
  background: none;
  border: none;
  color: var(--text-dark);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition), box-shadow var(--transition);
}

.top-buttons button:hover {
  color: var(--purple-neon);
  background: rgba(123,47,247,0.1);
  box-shadow: 0 0 6px rgba(159,68,211,0.4);
}


body.light {
  background: var(--bg-light);
  color: var(--text-light);
}

body.light #content {
  background: var(--bg-light);
  color: #2a2a2a;
}

body.light #sidebar {
  background: #f0eef9;
  border-right: 1px solid rgba(0,0,0,0.15);
}

body.light #sidebar a {
  color: #111;
}

body.light #sidebar a:hover {
  background: rgba(159,68,211,0.15);
}

body.light pre {
  background: #f2edf7;
  color: #222;
  border-left-color: #9f44d3;
}

body.light #topbar {
  background: #f3eff9;
  border-bottom: 1px solid rgba(0,0,0,0.1);
}

body.light .top-buttons button {
  color: #4a1472;
}


@media (max-width: 900px) {
  body {
    flex-direction: column;
  }

  #sidebar {
    position: fixed;
    top: 60px;
    left: 0;
    height: calc(100% - 60px);
    transform: translateX(-100%);
    z-index: 20;
    box-shadow: 4px 0 15px rgba(0,0,0,0.3);
  }

  #sidebar.show {
    transform: translateX(0);
  }

  #topbar {
    left: 0;
    width: 100%;
    padding: 0 16px;
    z-index: 25;
  }

  #content {
    padding: 80px 20px 40px;
  }

  pre code {
    white-space: pre-wrap;
    word-break: break-word;
  }
}

@media (max-width: 500px) {
  #content {
    padding: 70px 14px 40px;
  }

  pre {
    font-size: 0.85rem;
  }
}