@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap");

:root {
  --color-background: #121212;
  --color-surface: #1e1e1e;
  --color-primary: #fdd835;
  --color-on-surface: #e6e1e5;
  --color-on-surface-variant: #cac4d0;
  --color-outline: #444;
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Roboto", system-ui, sans-serif;
  background-color: var(--color-background);
  color: var(--color-on-surface);
  margin: 0;
  padding: 2rem;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: 16px;
  border: 1px solid var(--color-outline);
}

h1,
h2,
h3 {
  color: var(--color-on-surface);
  border-bottom: 1px solid var(--color-outline);
  padding-bottom: 0.5rem;
  margin-top: 1.5rem;
}

h1 {
  font-size: 2.5rem;
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

h2 {
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

h3 {
  font-size: 1.4rem;
  border-bottom: none;
  color: var(--color-on-surface-variant);
}

p,
li {
  line-height: 1.6;
  color: var(--color-on-surface-variant);
}

ul {
  list-style-type: none;
  padding-left: 1rem;
}

li {
  background-color: #252525;
  margin-bottom: 0.5rem;
  padding: 0.75rem;
  border-radius: 8px;
  border-left: 3px solid var(--color-primary);
}

code {
  background-color: #111;
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-family: "Courier New", Courier, monospace;
  color: var(--color-primary);
}

.category {
  margin-top: 2rem;
  padding: 1.5rem;
  border: 1px solid var(--color-outline);
  border-radius: 12px;
}

.subcategory {
  margin-top: 1rem;
  padding-left: 1rem;
}

/* --- File Tree --- */
#file-tree {
  background-color: #181818;
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--color-outline);
  margin-top: 2rem;
}

#file-tree ul {
  list-style: none;
  padding-left: 20px;
}

#file-tree li {
  padding: 8px 0;
  color: var(--color-on-surface-variant);
  background-color: transparent;
  border-left: none;
  margin-bottom: 0;
}

.tree-node {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.node-info {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.folder .node-info:hover {
  color: var(--color-primary);
}

.icon::before {
  font-family: monospace;
  margin-right: 10px;
  color: var(--color-primary);
}

.icon-folder::before {
  content: "📁";
}
.icon-image::before {
  content: "🖼️";
}
.icon-video::before {
  content: "🎬";
}
.icon-audio::before {
  content: "🎵";
}
.icon-font::before {
  content: "🔤";
}
.icon-deb::before {
  content: "📦";
}
.icon-default::before {
  content: "📄";
}

.folder > .tree-node > .node-info::before {
  content: "▶ ";
  font-size: 0.8em;
  transition: transform 0.2s;
  display: inline-block;
}

.folder.expanded > .tree-node > .node-info::before {
  transform: rotate(90deg);
}

.folder > ul {
  display: none;
}

.folder.expanded > ul {
  display: block;
}

.node-actions {
  display: flex;
  gap: 8px;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.2s;
}

li:hover .node-actions {
  visibility: visible;
  opacity: 1;
}

.action-btn {
  background: #333;
  border: 1px solid #444;
  color: var(--color-on-surface-variant);
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  transition:
    background 0.2s,
    color 0.2s;
  text-decoration: none;
}

.action-btn:hover {
  background: var(--color-primary);
  color: var(--color-background);
}

/* --- Media Viewer Modal --- */
.media-viewer-overlay {
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-viewer {
  position: absolute;
  top: 20px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  transition: color 0.3s;
}

.close-viewer:hover {
  color: var(--color-primary);
}

.viewer-content {
  max-width: 90vw;
  max-height: 90vh;
}

.viewer-content img,
.viewer-content video,
.viewer-content audio {
  width: 100%;
  height: auto;
  max-height: 90vh;
  display: block;
}

#viewer-info {
  text-align: center;
}

.download-button {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 24px;
  background-color: var(--color-primary);
  color: var(--color-background);
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
}