/* ---------- cyberpunk night console palette ---------- */
:root {
  --bg:             #1a0d2c;   /* dark purple background */
  --bg-lighter:     #2a1545;   /* lighter purple for entities */
  --fg:             #c8c8d2;   /* light gray text for general content */
  --header-fg:      #00ff66;   /* bright vintage terminal green for headers */
  --link:           #ff9e3d;   /* warm orange for links */
  --border:         #ff6b35;   /* vibrant orange border */
  --input-bg:       #251438;   /* slightly lighter than bg for fields */
  --input-fg:       #d0d0e0;   /* light text for input fields */
  --btn-bg:         #ff6b35;   /* orange buttons to match borders */
  --btn-fg:         #1a0d2c;   /* dark text on orange buttons for contrast */
  --accent:         #9161c7;   /* purple accent for highlights */
  --admin-color:    #ff3377;   /* pink for admin indicators */
  --quote-color:    #7bff3b;   /* light green for quotes */
  --user-color:     #00ff66;   /* signature green for non-admin chat users */
  --font-main:      'Courier New', monospace;
  --font-headers:   'VT323', 'Courier New', monospace;
}

/* ---------- reset & base layout ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.4;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ---------- chrome ---------- */
header {
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--border);
  background-color: var(--bg);
  color: var(--header-fg);
  font-family: var(--font-headers);
  font-weight: bold;
  font-size: 1.25rem;
  box-shadow: 0 2px 10px rgba(255, 107, 53, 0.3);
}

header a {
  color: var(--link);
  text-decoration: none;
  padding: 0.25rem 0.5rem;
  transition: all 0.2s ease;
}

header a:hover {
  background-color: var(--border);
  color: var(--bg);
  border-radius: 3px;
}

.header-logo {
  width: 25px;
  height: 25px;
  vertical-align: middle;
  margin-right: 6px;
}

main {
  flex: 1;
  padding: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.footer-section {
  text-align: center;
}

/* ---------- typography ---------- */
h1, h2, h3, h4, h5, h6 {
  color: var(--header-fg);
  font-family: var(--font-headers);
  margin-top: 0;
  text-shadow: 0 0 5px rgba(0, 255, 102, 0.5);
  letter-spacing: 1px;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }

/* ---------- links ---------- */
a { 
  color: var(--link); 
  text-decoration: none;
  transition: all 0.2s ease;
}
a:hover { 
  opacity: 0.85; 
  text-decoration: underline;
}

/* ---------- forms ---------- */
input, button, textarea {
  width: 100%;
  padding: 0.75rem;
  margin: 0.5rem 0;
  font-family: var(--font-main);
  background: var(--input-bg);
  color: var(--input-fg);
  border: 1px solid var(--border);
  border-radius: 3px;
  transition: all 0.2s ease;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 5px rgba(145, 97, 199, 0.5);
}

button {
  cursor: pointer;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border-color: var(--btn-bg);
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.2s ease;
}

button:hover { 
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 2px 5px rgba(255, 107, 53, 0.4);
}

textarea { 
  resize: vertical; 
  min-height: 100px;
}

/* ---------- content ---------- */
.post-image {
  margin-top: 0.75rem;
}

.post-image a {
  display: inline-block;
}

.thumb {
  display: block;
  max-height: 150px;
  border: 2px solid var(--border);
  margin: 0.5rem 0;
  transition: all 0.2s ease;
}

.thumb:hover {
  transform: scale(1.05);
}

.post, .thread {
  margin: 1rem 0;
  padding: 1rem;
  background-color: var(--bg-lighter);
  border: 2px solid var(--border);
  border-radius: 3px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  transition: all 0.2s ease;
}

.post:hover, .thread:hover {
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.2);
}

.post b {
  color: var(--header-fg);
  font-family: var(--font-headers);
}

blockquote {
  margin: 0.5rem 0 1rem;
  white-space: pre-wrap;
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
}

.admin {
  color: var(--admin-color);
  font-weight: bold;
}

small {
  color: var(--fg);
  opacity: 0.8;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.5rem 0;
}

/* ---------- image upload indicator ---------- */
.file-upload-container {
  position: relative;
}

.file-upload-label {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: var(--accent);
  color: var(--fg);
  border-radius: 3px;
  cursor: pointer;
  text-align: center;
  margin-bottom: 0.5rem;
}

.file-selected-indicator {
  color: var(--header-fg);
  font-size: 0.85rem;
  margin-top: 0.25rem;
  display: none;
}

/* Show when file is selected */
input[type="file"]:valid + .file-selected-indicator {
  display: block;
}

/* ---------- tables ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}

th, td {
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--border);
  text-align: left;
}

th {
  background-color: var(--bg);
  color: var(--header-fg);
  font-family: var(--font-headers);
}

/* ---------- welcome page ---------- */
.welcome-container {
  max-width: 800px;
  margin: 0 auto;
}

.about-section, .philosophy-section {
  margin: 2rem 0;
  padding: 1.5rem;
  background-color: var(--bg-lighter);
  border: 2px solid var(--border);
  border-radius: 3px;
}

.terminal-effect {
  position: relative;
  padding-left: 1rem;
}

.terminal-effect::before {
  content: ">";
  position: absolute;
  left: 0;
  color: var(--header-fg);
}

.username-bubble {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--bg-lighter);
  border: 1px solid var(--border);
  border-radius: 15px;
  margin-left: 0.5rem;
  color: var(--user-color);
  font-weight: bold;
  font-family: var(--font-headers);
  letter-spacing: 1px;
}

.username-bubble.admin {
  color: var(--admin-color);
}


/* ---------- form intro text ---------- */
.form-intro {
  margin-bottom: 1.5rem;
  color: var(--fg);
  font-style: italic;
  text-align: center;
  padding: 0.5rem;
  border-left: 3px solid var(--accent);
  background-color: var(--bg-lighter);
}


/* ---------- small-screen tweaks ---------- */
@media (max-width: 600px) {
  body { font-size: 15px; }
  input, button, textarea { font-size: 16px; } /* prevent iOS zoom */
  main { padding: 1rem; }
  .post, .thread { padding: 0.75rem; }
}

/* ---------- animations ---------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

main {
  animation: fadeIn 0.3s ease-in;
}

.post, .thread {
  animation: fadeIn 0.5s ease-in;
}



/* ---------- admin link styling ---------- */
.admin-link {
  display: inline-block;
  margin-left: 1rem;
  padding: 0.5rem 1rem;
  background-color: var(--accent);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--fg);
  text-decoration: none;
  transition: all 0.2s ease;
}

.admin-link:hover {
  background-color: var(--border);
  color: var(--bg);
  text-decoration: none;
}



/* ---------- invite tree visualization ---------- */
.invite-tree {
  margin-top: 2rem;
  padding: 1rem;
  background-color: var(--bg-lighter);
  border: 2px solid var(--border);
  border-radius: 3px;
}

.tree-info {
  color: var(--fg);
  font-style: italic;
  margin-bottom: 1.5rem;
  padding: 0.5rem;
  border-left: 3px solid var(--accent);
}

.tree-node {
  margin: 0.5rem 0;
  padding: 0.75rem;
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
}

.node-content {
  font-family: var(--font-headers);
  letter-spacing: 1px;
}

.node-content .creator {
  color: var(--header-fg);
  font-weight: bold;
}

.node-content .invite-code {
  color: var(--link);
  font-family: var(--font-main);
}

.node-content .user {
  color: var(--user-color);
  font-weight: bold;
}

.node-content .unused {
  color: var(--fg);
  opacity: 0.6;
  font-style: italic;
}

.node-children {
  margin-top: 1rem;
  margin-left: 2rem;
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
}

.node-children li {
  list-style: none;
  margin: 0.5rem 0;
  position: relative;
}

.node-children li::before {
  content: "→";
  position: absolute;
  left: -1.5rem;
  color: var(--accent);
  font-weight: bold;
}