:root {
  --bg: #0a0a0a;
  --panel: #141414;
  --text: #eaeaea;
  --muted: #a0a0a0;
  --border: #2a2a2a;
  --link: #1d97d8;
}

[data-theme="light"] {
  --bg: #f5f5f5;
  --panel: #ffffff;
  --text: #111111;
  --muted: #555555;
  --border: #dddddd;
  --link: #1d97d8;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, sans-serif;
}

body {
  display: flex;
  align-items: stretch;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* Sidebar Layout */
.sidebar {
  width: 240px;
  background: var(--panel);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border-right: 1px solid var(--border);
  min-height: 100%;
  align-self: stretch;
  overflow-y: auto;
}

.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Mobile Close Button (Hidden on Desktop) */
.close-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.close-btn:hover {
  background: var(--border);
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

/* Base Nav Links & Accordion Toggles */
.nav a,
.submenu-toggle {
  text-decoration: none;
  color: var(--text);
  padding: 0.45rem 0.6rem;
  border-radius: 4px;
  font-size: 1rem;
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav a:hover,
.submenu-toggle:hover {
  background: var(--border);
}

.nav a.active {
  background: var(--border);
  font-weight: 600;
}

/* Collapsible Submenus */
.nav-group {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.submenu-toggle .arrow {
  font-size: 0.75rem;
  transition: transform 0.2s ease;
  color: var(--muted);
}

.submenu {
  display: none;
  flex-direction: column;
  gap: 0.2rem;
  padding-left: 0.8rem;
  margin-left: 0.4rem;
  border-left: 2px solid var(--border);
}

/* Expanded Submenu State */
.nav-group.open .submenu {
  display: flex;
}

.nav-group.open .submenu-toggle .arrow {
  transform: rotate(180deg);
}

/* Topbar Header */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.menu-btn {
  visibility: hidden;
  font-size: 1.2rem;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--text);
}

.theme-btn {
  cursor: pointer;
  background: none;
  border: 1px solid var(--border);
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  color: var(--text);
}

/* Main Content Area */
.main {
  flex: 1;
  padding: 2rem;
}

.hero {
  margin-bottom: 2rem;
  max-width: 700px;
}

.hero h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.hero p {
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.card {
  background: var(--panel);
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: 0.1s;
  text-decoration: none;
  color: var(--text);
}

.card:hover {
  background: var(--border);
}

.card p {
  font-size: 0.9rem;
  color: var(--muted);
}

/* Changelog Section */
.changelog {
  max-width: 700px;
}

.log-entry {
  border-left: 2px solid var(--border);
  padding-left: 0.6rem;
  margin-bottom: 0.6rem;
}

.log-entry span {
  font-size: 0.8rem;
  color: var(--muted);
}

/* Mobile Responsiveness */
@media (max-width: 700px) {
  body {
    flex-direction: column;
  }

  .menu-btn {
    visibility: visible;
  }

  .close-btn {
    display: block;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: -260px;
    height: 100vh;
    width: 250px;
    transition: left 0.2s ease-in-out;
    z-index: 100;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
  }

  .sidebar.open {
    left: 0;
  }

  .main {
    padding: 1rem;
  }
}

.redirect:link {
  color: var(--link);
  background-color: transparent;
  text-decoration: none;
}
.redirect:visited {
  color: var(--link);
  background-color: transparent;
  text-decoration: none;
}
.redirect:hover {
  color: var(--link);
  background-color: transparent;
  text-decoration: underline;