/*
 * CIPHER//NET — app.css
 *
 * FONTS: fully offline / Tor-compatible.
 * To embed real fonts, run: python3 embed-fonts.py
 * It will inject base64 @font-face blocks at the top of this file.
 *
 * Without embedding, a system monospace stack is used which renders
 * correctly on Tor Browser, Tails, and most Linux/Windows/macOS systems.
 */

/* Stub @font-face blocks — replaced by embed-fonts.py */
@font-face {
  font-family: 'Share Tech Mono';
  font-style: normal;
  font-weight: 400;
  src: local('Courier New'), local('Courier'), local('monospace');
}

@font-face {
  font-family: 'VT323';
  font-style: normal;
  font-weight: 400;
  src: local('Courier New'), local('Courier'), local('monospace');
}

/* ─── VARIABLES & THEMES ──────────────────────────── */

/* Default: Matrix/Terminal (dark green on black) */
:root, [data-theme="matrix"] {
  --bg:         #030a03;
  --bg2:        #070f07;
  --surface:    #0d1a0d;
  --surface2:   #112011;
  --border:     #1a3a1a;
  --accent:     #00e500;
  --accent2:    #00b800;
  --accent3:    #007a00;
  --accent-dim: #004d00;
  --amber:      #ffb300;
  --red:        #ff3333;
  --text:       #c8f0c8;
  --text-dim:   #5a8a5a;
  --text-faint: #2a4a2a;
  --glow:       0 0 8px rgba(0,229,0,0.4);
  --glow-strong:0 0 20px rgba(0,229,0,0.6);
  /* legacy aliases */
  --green: var(--accent); --green2: var(--accent2);
  --green3: var(--accent3); --green-dim: var(--accent-dim);
}

/* Dark — neutral dark */
[data-theme="dark"] {
  --bg:         #1a1a1a;
  --bg2:        #222222;
  --surface:    #2a2a2a;
  --surface2:   #333333;
  --border:     #3a3a3a;
  --accent:     #61afef;
  --accent2:    #4d9fd6;
  --accent3:    #3a7ab0;
  --accent-dim: #1e3a55;
  --amber:      #e5c07b;
  --red:        #e06c75;
  --text:       #abb2bf;
  --text-dim:   #5c6370;
  --text-faint: #3a3f4b;
  --glow:       0 0 8px rgba(97,175,239,0.3);
  --glow-strong:0 0 20px rgba(97,175,239,0.5);
  --green: var(--accent); --green2: var(--accent2);
  --green3: var(--accent3); --green-dim: var(--accent-dim);
}

/* Light — clean white */
[data-theme="light"] {
  --bg:         #ffffff;
  --bg2:        #f5f5f5;
  --surface:    #eeeeee;
  --surface2:   #e0e0e0;
  --border:     #cccccc;
  --accent:     #0070f3;
  --accent2:    #005cc5;
  --accent3:    #003d99;
  --accent-dim: #cce0ff;
  --amber:      #f5a623;
  --red:        #d0021b;
  --text:       #111111;
  --text-dim:   #555555;
  --text-faint: #aaaaaa;
  --glow:       0 0 8px rgba(0,112,243,0.2);
  --glow-strong:0 0 16px rgba(0,112,243,0.35);
  --green: var(--accent); --green2: var(--accent2);
  --green3: var(--accent3); --green-dim: var(--accent-dim);
}

/* Solarized Dark */
[data-theme="solarized-dark"] {
  --bg:         #002b36;
  --bg2:        #073642;
  --surface:    #073642;
  --surface2:   #073642;
  --border:     #094052;
  --accent:     #268bd2;
  --accent2:    #2aa198;
  --accent3:    #859900;
  --accent-dim: #0a3040;
  --amber:      #b58900;
  --red:        #dc322f;
  --text:       #839496;
  --text-dim:   #586e75;
  --text-faint: #073642;
  --glow:       0 0 8px rgba(38,139,210,0.35);
  --glow-strong:0 0 20px rgba(38,139,210,0.5);
  --green: var(--accent); --green2: var(--accent2);
  --green3: var(--accent3); --green-dim: var(--accent-dim);
}

/* Solarized Light */
[data-theme="solarized-light"] {
  --bg:         #fdf6e3;
  --bg2:        #eee8d5;
  --surface:    #e8dfc8;
  --surface2:   #ddd6c0;
  --border:     #ccc4b0;
  --accent:     #268bd2;
  --accent2:    #2aa198;
  --accent3:    #859900;
  --accent-dim: #c8daea;
  --amber:      #b58900;
  --red:        #dc322f;
  --text:       #657b83;
  --text-dim:   #93a1a1;
  --text-faint: #b8c5c5;
  --glow:       0 0 8px rgba(38,139,210,0.2);
  --glow-strong:0 0 16px rgba(38,139,210,0.35);
  --green: var(--accent); --green2: var(--accent2);
  --green3: var(--accent3); --green-dim: var(--accent-dim);
}

/* Blackboard */
[data-theme="blackboard"] {
  --bg:         #0c0c0c;
  --bg2:        #141414;
  --surface:    #1c1c1c;
  --surface2:   #242424;
  --border:     #2c2c2c;
  --accent:     #e8e8d3;
  --accent2:    #caca9a;
  --accent3:    #a0a080;
  --accent-dim: #2a2a20;
  --amber:      #e8bb70;
  --red:        #ef5f5f;
  --text:       #e8e8d3;
  --text-dim:   #888878;
  --text-faint: #444438;
  --glow:       0 0 8px rgba(232,232,211,0.2);
  --glow-strong:0 0 16px rgba(232,232,211,0.35);
  --green: var(--accent); --green2: var(--accent2);
  --green3: var(--accent3); --green-dim: var(--accent-dim);
}

/* Dracula */
[data-theme="dracula"] {
  --bg:         #282a36;
  --bg2:        #1e2029;
  --surface:    #343746;
  --surface2:   #3c3f56;
  --border:     #44475a;
  --accent:     #bd93f9;
  --accent2:    #9977e0;
  --accent3:    #7a5cb8;
  --accent-dim: #3a2e55;
  --amber:      #f1fa8c;
  --red:        #ff5555;
  --text:       #f8f8f2;
  --text-dim:   #6272a4;
  --text-faint: #44475a;
  --glow:       0 0 8px rgba(189,147,249,0.35);
  --glow-strong:0 0 20px rgba(189,147,249,0.5);
  --green: var(--accent); --green2: var(--accent2);
  --green3: var(--accent3); --green-dim: var(--accent-dim);
}

/* Nord */
[data-theme="nord"] {
  --bg:         #2e3440;
  --bg2:        #272c36;
  --surface:    #3b4252;
  --surface2:   #434c5e;
  --border:     #4c566a;
  --accent:     #88c0d0;
  --accent2:    #81a1c1;
  --accent3:    #5e81ac;
  --accent-dim: #2e3f50;
  --amber:      #ebcb8b;
  --red:        #bf616a;
  --text:       #d8dee9;
  --text-dim:   #616e88;
  --text-faint: #3b4252;
  --glow:       0 0 8px rgba(136,192,208,0.3);
  --glow-strong:0 0 20px rgba(136,192,208,0.45);
  --green: var(--accent); --green2: var(--accent2);
  --green3: var(--accent3); --green-dim: var(--accent-dim);
}

/* Gruvbox Dark */
[data-theme="gruvbox"] {
  --bg:         #282828;
  --bg2:        #1d2021;
  --surface:    #3c3836;
  --surface2:   #504945;
  --border:     #665c54;
  --accent:     #b8bb26;
  --accent2:    #98971a;
  --accent3:    #79740e;
  --accent-dim: #32361a;
  --amber:      #fabd2f;
  --red:        #fb4934;
  --text:       #ebdbb2;
  --text-dim:   #928374;
  --text-faint: #504945;
  --glow:       0 0 8px rgba(184,187,38,0.3);
  --glow-strong:0 0 20px rgba(184,187,38,0.45);
  --green: var(--accent); --green2: var(--accent2);
  --green3: var(--accent3); --green-dim: var(--accent-dim);
}

/* Monokai */
[data-theme="monokai"] {
  --bg:         #272822;
  --bg2:        #1e1f1a;
  --surface:    #3e3d32;
  --surface2:   #49483e;
  --border:     #75715e;
  --accent:     #a6e22e;
  --accent2:    #8bbf27;
  --accent3:    #6d9620;
  --accent-dim: #2d3318;
  --amber:      #e6db74;
  --red:        #f92672;
  --text:       #f8f8f2;
  --text-dim:   #75715e;
  --text-faint: #49483e;
  --glow:       0 0 8px rgba(166,226,46,0.3);
  --glow-strong:0 0 20px rgba(166,226,46,0.45);
  --green: var(--accent); --green2: var(--accent2);
  --green3: var(--accent3); --green-dim: var(--accent-dim);
}

/* Tokyo Night */
[data-theme="tokyo-night"] {
  --bg:         #1a1b26;
  --bg2:        #13141f;
  --surface:    #24283b;
  --surface2:   #292e42;
  --border:     #3b4261;
  --accent:     #7aa2f7;
  --accent2:    #6183d6;
  --accent3:    #4a63b0;
  --accent-dim: #1e2640;
  --amber:      #e0af68;
  --red:        #f7768e;
  --text:       #c0caf5;
  --text-dim:   #565f89;
  --text-faint: #3b4261;
  --glow:       0 0 8px rgba(122,162,247,0.3);
  --glow-strong:0 0 20px rgba(122,162,247,0.45);
  --green: var(--accent); --green2: var(--accent2);
  --green3: var(--accent3); --green-dim: var(--accent-dim);
}

/* Catppuccin Mocha */
[data-theme="catppuccin"] {
  --bg:         #1e1e2e;
  --bg2:        #181825;
  --surface:    #313244;
  --surface2:   #45475a;
  --border:     #585b70;
  --accent:     #cba6f7;
  --accent2:    #b38df0;
  --accent3:    #9a74e8;
  --accent-dim: #2d2040;
  --amber:      #f9e2af;
  --red:        #f38ba8;
  --text:       #cdd6f4;
  --text-dim:   #6c7086;
  --text-faint: #45475a;
  --glow:       0 0 8px rgba(203,166,247,0.3);
  --glow-strong:0 0 20px rgba(203,166,247,0.45);
  --green: var(--accent); --green2: var(--accent2);
  --green3: var(--accent3); --green-dim: var(--accent-dim);
}

/* High Contrast */
[data-theme="high-contrast"] {
  --bg:         #000000;
  --bg2:        #0a0a0a;
  --surface:    #111111;
  --surface2:   #1a1a1a;
  --border:     #ffffff;
  --accent:     #ffff00;
  --accent2:    #cccc00;
  --accent3:    #999900;
  --accent-dim: #333300;
  --amber:      #ff8800;
  --red:        #ff0000;
  --text:       #ffffff;
  --text-dim:   #cccccc;
  --text-faint: #666666;
  --glow:       0 0 8px rgba(255,255,0,0.5);
  --glow-strong:0 0 20px rgba(255,255,0,0.7);
  --green: var(--accent); --green2: var(--accent2);
  --green3: var(--accent3); --green-dim: var(--accent-dim);
}

/* ─── THEME SWITCHER PANEL ─────────────────────────── */
.theme-switcher {
  position: fixed;
  bottom: 48px;
  right: 0;
  z-index: 500;
  background: var(--surface);
  border: 1px solid var(--border);
  border-right: none;
  padding: 8px;
  display: none;
  flex-direction: column;
  gap: 2px;
  max-height: 360px;
  overflow-y: auto;
}
.theme-switcher.open { display: flex; }

.theme-btn {
  background: none;
  border: 1px solid transparent;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1px;
  padding: 5px 10px;
  cursor: pointer;
  text-align: left;
  white-space: nowrap;
  transition: all 0.1s;
}
.theme-btn:hover   { border-color: var(--border); color: var(--text); }
.theme-btn.active  { border-color: var(--accent); color: var(--accent); }

.theme-toggle-btn {
  position: fixed;
  bottom: 12px;
  right: 0;
  z-index: 501;
  background: var(--surface);
  border: 1px solid var(--border);
  border-right: none;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 2px;
  padding: 5px 8px;
  cursor: pointer;
  writing-mode: vertical-rl;
  text-orientation: mixed;
}
.theme-toggle-btn:hover { color: var(--accent); border-color: var(--accent); }

/* ─── RESET ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  overflow: hidden;
}

/* Scanlines overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.15) 2px,
    rgba(0,0,0,0.15) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* CRT vignette */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,0.7) 100%);
  pointer-events: none;
  z-index: 9998;
}

.hidden { display: none !important; }
.amber  { color: var(--amber); }

/* ─── LAYOUT ──────────────────────────────────────── */
#app {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.main {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ─── HEADER ──────────────────────────────────────── */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  flex-shrink: 0;
}

.logo {
  font-family: var(--display);
  font-size: 28px;
  color: var(--green);
  text-shadow: var(--glow);
  letter-spacing: 4px;
}

.logo span { color: var(--text-dim); }

.status-bar {
  display: flex;
  gap: 20px;
  align-items: center;
  font-size: 11px;
  color: var(--text-dim);
}

.dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green3);
  margin-right: 6px;
  animation: pulse 2s infinite;
}
.dot.active { background: var(--green); box-shadow: var(--glow); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

#user-badge {
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 4px 12px;
  font-size: 11px;
  color: var(--green2);
}

#user-badge.visible { display: flex; }

.badge-fp { color: var(--text-faint); margin-left: 4px; }

/* ─── STORAGE WARNING ─────────────────────────────── */
#storage-warning {
  background: rgba(255,179,0,0.06);
  border-bottom: 1px solid rgba(255,179,0,0.25);
  padding: 7px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  color: var(--amber);
  letter-spacing: 0.5px;
  flex-shrink: 0;
  animation: fadeIn 0.4s ease;
}

#storage-warning.hidden { display: none !important; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.warn-icon { font-size: 14px; flex-shrink: 0; }

.warn-link {
  background: none;
  border: none;
  color: var(--amber);
  text-decoration: underline;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
  padding: 0;
}

.dismiss-warn {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--amber);
  cursor: pointer;
  font-size: 16px;
  opacity: 0.6;
  padding: 0 4px;
  font-family: var(--mono);
}

.dismiss-warn:hover { opacity: 1; }

/* ─── SIDEBAR ─────────────────────────────────────── */
.sidebar {
  width: 220px;
  border-right: 1px solid var(--border);
  background: var(--bg2);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow: hidden;
}

.sidebar-section {
  padding: 10px;
  border-bottom: 1px solid var(--border);
}

.sidebar-users {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.sidebar-label {
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.channel-list {
  overflow-y: auto;
  padding: 0;
}

.channel-item {
  padding: 6px 10px;
  cursor: pointer;
  color: var(--text-dim);
  border: 1px solid transparent;
  margin-bottom: 2px;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.channel-item:hover  { color: var(--green); border-color: var(--green-dim); background: var(--surface); }
.channel-item.active { color: var(--green); border-color: var(--green3); background: var(--surface); box-shadow: inset 2px 0 0 var(--green); }

.online-count {
  margin-left: auto;
  font-size: 10px;
  background: var(--green-dim);
  color: var(--green);
  padding: 1px 5px;
  border-radius: 10px;
}

.user-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.user-empty {
  color: var(--text-faint);
  font-size: 11px;
  padding: 4px 10px;
}

.user-item {
  padding: 4px 10px;
  font-size: 12px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: default;
  margin-bottom: 2px;
  transition: color 0.15s;
}

.user-item:hover { color: var(--green); }
.user-item.me    { color: var(--green2); }

.user-dot        { width: 6px; height: 6px; border-radius: 50%; background: var(--green3); flex-shrink: 0; }
.user-dot.online { background: var(--green); box-shadow: var(--glow); }

.user-fp { font-size: 10px; color: var(--text-faint); margin-left: auto; }

.btn-full { width: 100%; font-size: 11px; padding: 6px; }

/* ─── SIDEBAR IDENTITY ACTIONS ────────────────────── */
.sidebar-actions {
  padding: 8px;
  border-top: 1px solid var(--border);
  flex-direction: column;
  gap: 4px;
}

.sidebar-actions.visible { display: flex; }

.storage-health {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px 2px;
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 1px;
}

.sh-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--green3);
  flex-shrink: 0;
}

.btn-tiny {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1px;
  padding: 5px 8px;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s;
  width: 100%;
}

.btn-tiny:hover    { border-color: var(--green3); color: var(--green2); background: var(--surface); }
.btn-tiny.highlight { border-color: var(--green-dim); color: var(--green3); }

/* ─── CHAT AREA ───────────────────────────────────── */
.chat-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-header {
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-dim);
  flex-shrink: 0;
}

.chat-header strong { color: var(--green); font-size: 14px; }

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.messages::-webkit-scrollbar       { width: 4px; }
.messages::-webkit-scrollbar-track { background: var(--bg); }
.messages::-webkit-scrollbar-thumb { background: var(--green-dim); }

.msg {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 10px;
  padding: 3px 6px;
  border-radius: 2px;
  transition: background 0.1s;
}

.msg:hover { background: var(--surface); }

.msg-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  padding-top: 2px;
}

.msg-author {
  font-size: 12px;
  font-weight: bold;
  color: var(--green2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}

.msg-author.me     { color: var(--amber); }
.msg-author.system { color: var(--text-faint); font-style: italic; }

.msg-time { font-size: 10px; color: var(--text-faint); }

.msg-body        { color: var(--text); line-height: 1.5; word-break: break-word; }
.msg-body.system { color: var(--text-dim); font-style: italic; }

.msg-sig { font-size: 10px; color: var(--green-dim); margin-top: 2px; display: flex; align-items: center; gap: 4px; }
.verified-icon { color: var(--green3); }

.no-login-hint {
  text-align: center;
  padding: 40px;
  color: var(--text-faint);
  font-size: 12px;
  line-height: 2;
}

.btn-hint-auth { margin-top: 10px; }

/* ─── INPUT AREA ──────────────────────────────────── */
.input-area {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  background: var(--bg2);
  flex-shrink: 0;
}

.input-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 6px 12px;
  transition: border-color 0.2s;
}

.input-wrap:focus-within {
  border-color: var(--green3);
  box-shadow: 0 0 0 1px var(--green-dim);
}

.input-prefix { color: var(--green3); font-size: 16px; flex-shrink: 0; }

#msg-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  caret-color: var(--green);
}

#msg-input::placeholder { color: var(--text-faint); }
#msg-input:disabled     { opacity: 0.4; }

.btn-send {
  background: transparent;
  border: 1px solid var(--green3);
  color: var(--green2);
  padding: 4px 14px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 1px;
  transition: all 0.15s;
}

.btn-send:hover    { background: var(--green-dim); border-color: var(--green); color: var(--green); box-shadow: var(--glow); }
.btn-send:disabled { opacity: 0.3; cursor: not-allowed; }

.input-hint {
  font-size: 10px;
  color: var(--text-faint);
  margin-top: 6px;
  letter-spacing: 1px;
}

/* ─── MODAL ───────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(2px);
}

.modal {
  background: var(--bg2);
  border: 1px solid var(--green3);
  box-shadow: 0 0 40px rgba(0,229,0,0.15), inset 0 0 60px rgba(0,50,0,0.3);
  width: 540px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  padding: 32px;
}

.modal::-webkit-scrollbar       { width: 4px; }
.modal::-webkit-scrollbar-track { background: var(--bg); }
.modal::-webkit-scrollbar-thumb { background: var(--green-dim); }

.modal-title {
  font-family: var(--display);
  font-size: 32px;
  color: var(--green);
  text-shadow: var(--glow-strong);
  letter-spacing: 3px;
  margin-bottom: 6px;
}

.modal-sub {
  color: var(--text-dim);
  font-size: 12px;
  margin-bottom: 28px;
  letter-spacing: 1px;
}

.tab-bar {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.tab {
  padding: 8px 20px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 1px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.15s;
}

.tab:hover  { color: var(--green); }
.tab.active { color: var(--green); border-bottom-color: var(--green); }

.field-group     { margin-bottom: 20px; }
.field-group-rel { position: relative; }

.field-label {
  display: block;
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.field-input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  padding: 10px 12px;
  outline: none;
  transition: border-color 0.2s;
}

.field-input:focus { border-color: var(--green3); box-shadow: 0 0 0 1px var(--green-dim); }
.mono-sm { font-size: 11px; word-break: break-all; }

.field-hint {
  font-size: 10px;
  color: var(--text-faint);
  margin-top: 5px;
  line-height: 1.5;
}

.warning-box {
  background: rgba(255,50,0,0.08);
  border: 1px solid rgba(255,80,0,0.3);
  padding: 14px 16px;
  margin-bottom: 20px;
}

.warning-box .w-title {
  color: var(--amber);
  font-size: 12px;
  letter-spacing: 2px;
  margin-bottom: 6px;
}

.warning-box p { font-size: 12px; color: var(--text-dim); line-height: 1.6; }

.key-display {
  background: var(--surface);
  border: 1px solid var(--green-dim);
  padding: 12px;
  font-size: 10px;
  color: var(--green2);
  word-break: break-all;
  line-height: 1.6;
  max-height: 120px;
  overflow-y: auto;
  font-family: var(--mono);
}

.copy-btn {
  position: absolute;
  top: 24px;
  right: 0;
  background: var(--green-dim);
  border: none;
  color: var(--green);
  font-family: var(--mono);
  font-size: 10px;
  padding: 2px 8px;
  cursor: pointer;
  letter-spacing: 1px;
}

.copy-btn:hover { background: var(--green3); }

.progress-bar { height: 2px; background: var(--surface2); margin: 16px 0; overflow: hidden; }
.progress-fill { height: 100%; background: var(--green); box-shadow: var(--glow); width: 0; transition: width 0.3s ease; }

.check-row { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 16px; }
.check-row input[type=checkbox] { margin-top: 2px; accent-color: var(--green); width: 14px; height: 14px; flex-shrink: 0; }
.check-row label { font-size: 12px; color: var(--text-dim); line-height: 1.5; cursor: pointer; }

.btn-row { display: flex; gap: 10px; margin-top: 24px; justify-content: flex-end; }

.btn {
  padding: 10px 24px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 2px;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  text-transform: uppercase;
}

.btn-primary          { background: var(--green-dim); color: var(--green); border: 1px solid var(--green3); }
.btn-primary:hover    { background: var(--green3); box-shadow: var(--glow); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-ghost            { background: transparent; color: var(--text-dim); border: 1px solid var(--border); }
.btn-ghost:hover      { color: var(--text); border-color: var(--text-dim); }

.spinner {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid var(--green-dim);
  border-top-color: var(--green);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
  margin-right: 8px;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ─── LOGIN TAB EXTRAS ────────────────────────────── */
.drop-zone {
  border: 1px dashed var(--border);
  padding: 14px;
  text-align: center;
  color: var(--text-faint);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.drop-zone:hover,
.drop-zone.drag-over { border-color: var(--green3); color: var(--green2); background: var(--surface); }

.identity-preview {
  background: var(--surface);
  border: 1px solid var(--green-dim);
  padding: 10px 12px;
  font-size: 11px;
  color: var(--green2);
  margin-bottom: 14px;
  line-height: 1.8;
}

.ip-label   { color: var(--text-dim); font-size: 10px; letter-spacing: 1px; }
.ip-fp      { color: var(--text-dim); }

.login-error {
  color: var(--red);
  font-size: 12px;
  margin-bottom: 12px;
  padding: 8px;
  border: 1px solid rgba(255,50,50,0.3);
  background: rgba(255,0,0,0.05);
}

/* ─── TOAST ───────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(60px);
  background: var(--surface2);
  border: 1px solid var(--green3);
  color: var(--green);
  padding: 8px 20px;
  font-size: 12px;
  letter-spacing: 1px;
  transition: transform 0.3s ease;
  z-index: 9000;
  pointer-events: none;
  box-shadow: var(--glow);
}

#toast.show { transform: translateX(-50%) translateY(0); }

/* ─── LOCK SCREEN ─────────────────────────────────── */
#lock-screen {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5000;
  overflow-y: auto;
  padding: 20px;
}

#lock-screen.hidden { display: none !important; }

.lock-inner {
  width: 520px;
  max-width: 100%;
  padding: 40px 48px;
  border: 1px solid var(--green3);
  background: var(--bg2);
  box-shadow: 0 0 60px rgba(0,229,0,0.1), inset 0 0 80px rgba(0,40,0,0.4);
}

.lock-logo {
  font-family: var(--display);
  font-size: 48px;
  color: var(--green);
  text-shadow: var(--glow-strong);
  letter-spacing: 6px;
  text-align: center;
  margin-bottom: 6px;
}

.lock-logo span { color: var(--text-dim); }

.lock-sub {
  text-align: center;
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 2px;
  margin-bottom: 32px;
}

.lock-tab-bar {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}

.lock-tab {
  flex: 1;
  text-align: center;
  padding: 10px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 2px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.15s;
}

.lock-tab:hover  { color: var(--green); }
.lock-tab.active { color: var(--green); border-bottom-color: var(--green); }

.lock-btn-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 24px;
}

.btn-wide { width: 100%; text-align: center; }

.lock-footer {
  margin-top: 32px;
  text-align: center;
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 1px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* ─── CHANNEL PASSPHRASE ──────────────────────────── */
.chat-header {
  flex-wrap: wrap;
  gap: 8px;
}

.header-sep { color: var(--text-faint); }

.passphrase-wrap {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 3px 8px;
}

#channel-passphrase {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
  width: 180px;
  caret-color: var(--green);
}

#channel-passphrase::placeholder { color: var(--text-faint); }

.btn-passphrase {
  background: transparent;
  border: 1px solid var(--green-dim);
  color: var(--green3);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1px;
  padding: 2px 8px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-passphrase:hover { border-color: var(--green); color: var(--green); }

.enc-status {
  font-size: 10px;
  letter-spacing: 1px;
  padding: 2px 6px;
  border: 1px solid var(--border);
  color: var(--text-faint);
  white-space: nowrap;
}

.enc-status.active {
  color: var(--green);
  border-color: var(--green3);
  background: var(--green-dim);
  box-shadow: var(--glow);
}

/* encrypted badge on messages */
.msg-enc {
  font-size: 10px;
  color: var(--green3);
  margin-top: 2px;
  letter-spacing: 1px;
}

.msg-enc.failed { color: var(--red); }

.no-crypto {
  color: var(--red);
  padding: 40px;
  font-family: var(--mono);
  font-size: 14px;
  text-align: center;
}

/* ─── DM SIDEBAR ──────────────────────────────────── */
.sidebar-hint { font-size: 9px; color: var(--text-faint); letter-spacing: 1px; }

.dm-list { padding: 4px 8px; }
.dm-empty { color: var(--text-faint); font-size: 11px; padding: 4px 10px; }

.dm-item {
  padding: 5px 10px;
  cursor: pointer;
  color: var(--text-dim);
  border: 1px solid transparent;
  margin-bottom: 2px;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s;
}
.dm-item:hover  { color: var(--green); border-color: var(--green-dim); background: var(--surface); }
.dm-item.active { color: var(--green); border-color: var(--green3); background: var(--surface); box-shadow: inset 2px 0 0 var(--green); }
.dm-icon { color: var(--amber); font-size: 11px; }
.dm-item.active .dm-icon { color: var(--green); }

/* ─── DM HEADER INFO ──────────────────────────────── */
.dm-header-info {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dm-fp {
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 1px;
}

/* ─── DM MODAL ────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  backdrop-filter: blur(2px);
}

.modal {
  background: var(--bg2);
  border: 1px solid var(--green3);
  box-shadow: 0 0 40px rgba(0,229,0,0.12);
  width: 500px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  padding: 28px 32px;
}

.dm-modal { border-color: var(--amber); box-shadow: 0 0 40px rgba(255,179,0,0.08); }
.dm-modal .modal-title { color: var(--amber); text-shadow: 0 0 12px rgba(255,179,0,0.4); }

.modal-title {
  font-family: var(--display);
  font-size: 28px;
  color: var(--green);
  letter-spacing: 3px;
  margin-bottom: 4px;
}

.modal-sub { color: var(--text-dim); font-size: 11px; margin-bottom: 24px; letter-spacing: 1px; }

.btn-row { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* ─── DM MESSAGE INDICATOR ────────────────────────── */
.msg-dm-badge {
  font-size: 10px;
  color: var(--amber);
  letter-spacing: 1px;
  margin-top: 2px;
}

/* ─── ALGO BADGE ──────────────────────────────────── */
.algo-badge {
  font-size: 11px;
  color: var(--green3);
  background: var(--surface);
  border: 1px solid var(--green-dim);
  padding: 6px 10px;
  letter-spacing: 1px;
  margin-top: 4px;
}

/* ─── KEY DISPLAY DISTINCTION ─────────────────────── */
.priv-label {
  color: var(--amber) !important;
  letter-spacing: 2px;
}

.priv-key-box {
  border-color: var(--amber) !important;
  box-shadow: 0 0 8px rgba(255,179,0,0.15);
}

.pub-label {
  color: var(--text-faint);
  letter-spacing: 1px;
}

/* ─── SCREENSHOT DETERRENTS ───────────────────────── */

/* Block text selection across the entire app */
#app, #app * {
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

/* Allow selection only in input fields */
#app input, #app textarea, #app select {
  -webkit-user-select: text;
  -moz-user-select: text;
  user-select: text;
}

/* Visibility blank — covers entire viewport */
#screen-blank {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: #000;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
}
#screen-blank.active { display: flex; }

#screen-blank .blank-title {
  font-family: 'Share Tech Mono', 'Courier New', monospace;
  font-size: 18px;
  color: #ff4444;
  letter-spacing: 4px;
  text-transform: uppercase;
}

#screen-blank .blank-sub {
  font-family: 'Share Tech Mono', 'Courier New', monospace;
  font-size: 12px;
  color: #555;
  letter-spacing: 2px;
}

/* PrintScreen warning toast */
#screenshot-warn {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 99998;
  background: #1a0000;
  border: 2px solid #ff4444;
  color: #ff4444;
  font-family: 'Share Tech Mono', 'Courier New', monospace;
  font-size: 13px;
  letter-spacing: 2px;
  padding: 20px 32px;
  text-align: center;
  pointer-events: none;
}
#screenshot-warn.show { display: block; }

/* Screenshot protection badge in header */
.ss-badge {
  font-size: 9px;
  color: #ff4444;
  letter-spacing: 2px;
  opacity: 0.7;
  padding: 2px 6px;
  border: 1px solid #ff444433;
}

/* ─── PWA / MOBILE ────────────────────────────────── */

/* Safe area insets for notched phones (iPhone X+, Android) */
body {
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

/* Prevent double-tap zoom on buttons */
button, select, input, textarea {
  touch-action: manipulation;
}

/* Larger touch targets on mobile */
@media (max-width: 600px) {
  .btn, button {
    min-height: 44px;
  }

  .channel-item, .user-item, .dm-item {
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  /* Stack sidebar below chat on narrow screens */
  .layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    max-height: 140px;
    overflow-y: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    flex-direction: row;
    flex-wrap: wrap;
  }

  .sidebar-section {
    flex: 1;
    min-width: 120px;
  }

  /* Full width input bar */
  .input-row {
    padding: 8px;
  }

  #msg-input {
    font-size: 16px; /* prevents iOS auto-zoom on focus */
  }

  /* Lock screen fits small screens */
  .lock-box {
    margin: 8px;
    padding: 16px;
  }

  .key-display {
    font-size: 9px;
    max-height: 80px;
  }
}

/* Standalone PWA — hide browser chrome artifacts */
@media (display-mode: standalone) {
  body {
    overscroll-behavior: none;
  }
}

/* ─── PASSWORD-PROTECTED KEY EXPORT ──────────────────── */
.enc-export-row {
  margin: 6px 0 4px 0;
}

.enc-export-row .field-input {
  width: 100%;
  margin-bottom: 4px;
}

.field-hint-inline {
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 1px;
  margin-left: 4px;
}

#export-hint {
  font-size: 10px;
  letter-spacing: 1px;
  margin-top: 2px;
  transition: color 0.3s;
}

#import-password-group {
  display: none;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── PGP MODAL ───────────────────────────────────── */
.pgp-modal-box {
  max-width: 560px;
  width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
}

.pgp-out {
  font-size: 9px;
  line-height: 1.4;
  background: var(--bg);
  color: var(--green3);
  border-color: var(--green-dim);
  resize: vertical;
}

.pgp-out-label {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--green3);
}

.pgp-out-label.amber { color: var(--amber); }

.pgp-btn-row {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}

.pgp-sig-status {
  font-size: 11px;
  letter-spacing: 2px;
  margin-top: 6px;
  padding: 4px 8px;
}

.pgp-sig-status.ok   { color: var(--green3); border-left: 2px solid var(--green3); }
.pgp-sig-status.fail { color: #ff4444;        border-left: 2px solid #ff4444; }
.pgp-sig-status.warn { color: var(--amber);   border-left: 2px solid var(--amber); }

.sidebar-divider {
  border-top: 1px solid var(--border);
  margin: 6px 0;
}

.sidebar-section-label {
  font-size: 9px;
  color: var(--text-faint);
  letter-spacing: 3px;
  padding: 0 2px 4px;
  text-transform: uppercase;
}

/* ─── POST-QUANTUM BADGE ──────────────────────────── */
.pq-badge {
  font-size: 9px;
  color: var(--amber);
  letter-spacing: 2px;
  border: 1px solid #4a3a00;
  padding: 1px 5px;
  margin-left: 4px;
}

/* ─── NOSTR STATUS BAR ───────────────────────────────── */
.nostr-status-bar {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--text-faint);
  border: 1px solid var(--border);
  padding: 3px 8px;
}

.nostr-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--text-faint);
}
.nostr-dot.online  { background: var(--green); box-shadow: var(--glow); }
.nostr-dot.offline { background: var(--red); }

/* ─── NOSTR RELAY MODAL ──────────────────────────────── */
.nostr-relay-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 220px;
  overflow-y: auto;
}

.nostr-relay-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 11px;
}

.nostr-relay-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--text-faint);
}
.nostr-relay-dot.connected    { background: var(--green); box-shadow: var(--glow); }
.nostr-relay-dot.connecting   { background: var(--amber); }
.nostr-relay-dot.disconnected { background: var(--text-faint); }
.nostr-relay-dot.error        { background: var(--red); }

.nostr-relay-url {
  flex: 1;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 10px;
  letter-spacing: 0.5px;
}

.btn-tiny.danger {
  color: var(--red);
  border-color: #3a0000;
}
.btn-tiny.danger:hover { background: rgba(255,50,50,0.08); }
.btn-tiny.active { color: var(--green); border-color: var(--green-dim); }

/* ─── CHANNEL MANAGER ─────────────────────────────────── */
.sidebar-label-btn {
  float: right;
  background: none;
  border: 1px solid var(--green-dim);
  color: var(--green);
  font-size: 14px;
  line-height: 1;
  padding: 0 5px;
  cursor: pointer;
  font-family: var(--mono);
  margin-top: -2px;
}
.sidebar-label-btn:hover { background: rgba(0,229,0,0.08); }

.ch-icon   { font-size: 11px; margin-right: 4px; }
.ch-name   { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ch-empty  { font-size: 10px; color: var(--text-faint); padding: 8px 4px; letter-spacing: 1px; }

.ch-private-badge {
  font-size: 8px; letter-spacing: 1px;
  color: var(--amber); border: 1px solid #4a3a00;
  padding: 1px 3px; margin-left: 4px;
}

/* Channel modal */
.channel-modal-box { max-width: 600px; width: 96vw; max-height: 90vh; overflow-y: auto; }

.ch-modal-tabs {
  display: flex; gap: 2px; margin-bottom: 16px;
  border-bottom: 1px solid var(--border); padding-bottom: 8px;
}

.ch-tab {
  background: none; border: 1px solid var(--border);
  color: var(--text-dim); font-family: var(--mono);
  font-size: 10px; letter-spacing: 2px; padding: 5px 10px;
  cursor: pointer; transition: all 0.15s;
}
.ch-tab:hover  { border-color: var(--green-dim); color: var(--text); }
.ch-tab.active { border-color: var(--green); color: var(--green); }

.ch-list { display: flex; flex-direction: column; gap: 4px; max-height: 300px; overflow-y: auto; }

.ch-row {
  display: flex; align-items: flex-start; gap: 8px;
  padding: 10px; background: var(--bg); border: 1px solid var(--border);
}
.ch-row:hover { border-color: var(--green-dim); }

.ch-row-info  { flex: 1; }
.ch-row-name  { font-size: 12px; color: var(--text); letter-spacing: 1px; display: block; }
.ch-row-desc  { font-size: 10px; color: var(--text-dim); margin-top: 4px; }
.ch-row-btns  { display: flex; gap: 4px; flex-shrink: 0; flex-wrap: wrap; }
.ch-row-type  { font-size: 8px; letter-spacing: 2px; padding: 1px 4px; margin-left: 6px; }
.ch-row-type.public  { color: var(--green2); border: 1px solid var(--green-dim); }
.ch-row-type.private { color: var(--amber);  border: 1px solid #4a3a00; }
.ch-row-role { font-size: 8px; color: var(--amber); margin-left: 4px; letter-spacing: 1px; }

/* Role badge */
.ch-role-badge {
  font-size: 9px; letter-spacing: 3px; padding: 4px 10px;
  margin-bottom: 12px; display: inline-block;
}
.role-owner  { color: var(--amber);  border: 1px solid #4a3a00; }
.role-admin  { color: var(--green2); border: 1px solid var(--green-dim); }
.role-member { color: var(--text);   border: 1px solid var(--border); }
.role-guest  { color: var(--text-faint); border: 1px solid var(--border); }
.role-banned { color: var(--red);    border: 1px solid #3a0000; }

/* Member list */
.ch-member-list { display: flex; flex-direction: column; gap: 4px; max-height: 200px; overflow-y: auto; }
.ch-member-row  {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 8px; background: var(--bg); border: 1px solid var(--border);
  font-size: 11px;
}
.ch-member-row.banned { opacity: 0.5; border-color: #3a0000; }
.ch-member-name { flex: 1; color: var(--text-dim); }