:root {
  --bg: #0e1621;
  --sidebar: #17212b;
  --header: #17212b;
  --hover: #202b36;
  --active: #2b5278;
  --border: #0e1621;
  --text: #f5f5f5;
  --muted: #6c7b8a;
  --blue: #2aabee;
  --bubble-in: #182533;
  --bubble-out: #2b5278;
  --input: #17212b;
  --pattern: #0b1118;
  --online: #4dcd5e;
  --unread: #3c90c7;
  --shadow: rgba(0, 0, 0, 0.35);
}

[data-theme="light"] {
  --bg: #e6ebee;
  --sidebar: #ffffff;
  --header: #ffffff;
  --hover: #f4f4f5;
  --active: #e3f1fb;
  --border: #dfe3e6;
  --text: #222;
  --muted: #707579;
  --blue: #3390ec;
  --bubble-in: #ffffff;
  --bubble-out: #eeffde;
  --input: #ffffff;
  --pattern: #c8d6df;
  --online: #0ac630;
  --unread: #3390ec;
  --shadow: rgba(0, 0, 0, 0.12);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: "Segoe UI", "Roboto", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}

.app {
  display: flex;
  height: 100%;
  max-width: 1600px;
  margin: 0 auto;
  background: var(--bg);
  box-shadow: 0 0 0 1px var(--border);
}

.sidebar {
  width: 380px;
  min-width: 280px;
  max-width: 420px;
  background: var(--sidebar);
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  min-height: 56px;
}

.search-wrap {
  flex: 1;
  position: relative;
}
.search-wrap input {
  width: 100%;
  background: var(--bg);
  border: none;
  border-radius: 22px;
  color: var(--text);
  padding: 9px 14px 9px 38px;
  font-size: 14px;
  outline: none;
}
.search-wrap input::placeholder { color: var(--muted); }
.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
}

#clearMine { width: auto; padding: 0 10px; border-radius: 12px; font-size: 13px; color: #f3b4b4; }
.icon-btn {
  background: none;
  border: none;
  color: var(--muted);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  cursor: pointer;
  flex-shrink: 0;
}
.icon-btn:hover { background: var(--hover); color: var(--text); }

.chat-list {
  overflow-y: auto;
  flex: 1;
}
.chat-list::-webkit-scrollbar { width: 6px; }
.chat-list::-webkit-scrollbar-thumb { background: #3a4a58; border-radius: 4px; }

.chat-item {
  display: flex;
  gap: 12px;
  padding: 10px 14px;
  cursor: pointer;
  align-items: center;
  border-bottom: 1px solid transparent;
}
.chat-item:hover { background: var(--hover); }
.chat-item.active { background: var(--active); }
.chat-item.active .preview,
.chat-item.active .time,
.chat-item.active .status-dot { color: rgba(255,255,255,.75); }
.chat-x{border:0;background:transparent;color:#8da3b5;font:800 18px/1 sans-serif;cursor:pointer;padding:0 0 0 6px}
.chat-item.active .chat-x{color:#fff}

.avatar {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 600;
  font-size: 18px;
  color: #fff;
  flex-shrink: 0;
  position: relative;
  letter-spacing: .3px;
  user-select: none;
  overflow: hidden;
}
.avatar.sm { width: 42px; height: 42px; font-size: 15px; }
.avatar.lg { width: 64px; height: 64px; font-size: 22px; }
.avatar .online-dot {
  position: absolute;
  right: 1px;
  bottom: 1px;
  width: 12px;
  height: 12px;
  background: var(--online);
  border: 2px solid var(--sidebar);
  border-radius: 50%;
}

.chat-meta { flex: 1; min-width: 0; }
.chat-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}
.chat-name {
  font-weight: 600;
  font-size: 15px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.time { font-size: 12px; color: var(--muted); flex-shrink: 0; }
.chat-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-top: 3px;
}
.preview {
  font-size: 14px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.preview b { color: var(--text); font-weight: 500; }
.badge {
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background: var(--unread);
  color: #fff;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 600;
  display: grid;
  place-items: center;
}
.badge.muted { background: #4a5a68; }

.chat-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background:
    radial-gradient(ellipse at top, rgba(42,171,238,.07), transparent 50%),
    repeating-linear-gradient(135deg, var(--pattern) 0 18px, transparent 18px 36px);
}

.empty-state {
  margin: auto;
  text-align: center;
  color: var(--muted);
  padding: 32px;
}
.empty-state h1 { color: var(--text); margin: 16px 0 8px; font-weight: 600; }
.empty-state p { line-height: 1.5; }
.empty-logo { filter: drop-shadow(0 8px 24px rgba(42,171,238,.35)); }

.conversation { display: flex; flex-direction: column; height: 100%; position: relative; }
.conversation.hidden, .hidden { display: none !important; }

.conv-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  min-height: 56px;
  background: var(--header);
  border-bottom: 1px solid var(--border);
}
.conv-peer { display: flex; align-items: center; gap: 12px; flex: 1; min-width: 0; cursor: pointer; }
.conv-name { font-weight: 600; font-size: 15px; }
.conv-status { font-size: 13px; color: var(--muted); }
.conv-status.online { color: var(--blue); }
.back-btn { display: none; }

.messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 16px 12% 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.messages[data-wall="sea"]{background:linear-gradient(180deg,#0a3040 0%,#17627a 42%,#0c2830 100%)}
.messages[data-wall="forest"]{background:linear-gradient(180deg,#10281c 0%,#1e5a38 40%,#0e2218 100%)}
.messages[data-wall="sand"]{background:linear-gradient(180deg,#3a2a18 0%,#8a6840 45%,#2a2116 100%)}
.messages[data-wall="dusk"]{background:linear-gradient(180deg,#2a1840 0%,#7a3a58 42%,#1a1428 100%)}
.messages[data-wall="paper"]{background:linear-gradient(180deg,#243044 0%,#3d4e66 50%,#1c2838 100%)}
.messages[data-wall="ember"]{background:linear-gradient(160deg,#2a120c 0%,#8a3a22 46%,#1a0e0c 100%)}
.messages[data-wall="ice"]{background:linear-gradient(180deg,#143044 0%,#3d6e86 48%,#102430 100%)}
.messages[data-wall="violet"]{background:linear-gradient(160deg,#1a1030 0%,#4a2a78 45%,#140e24 100%)}
.messages[data-wall="olive"]{background:linear-gradient(180deg,#1a2410 0%,#4e6230 46%,#12180e 100%)}
.messages[data-wall="copper"]{background:linear-gradient(160deg,#2a1a10 0%,#8a5a32 48%,#1c140e 100%)}
.conversation[data-look="sea"] .conv-header,.conversation[data-look="sea"] .composer{background:#0c3342}
.conversation[data-look="forest"] .conv-header,.conversation[data-look="forest"] .composer{background:#143222}
.conversation[data-look="sand"] .conv-header,.conversation[data-look="sand"] .composer{background:#3a2a16}
.conversation[data-look="dusk"] .conv-header,.conversation[data-look="dusk"] .composer{background:#2a1630}
.conversation[data-look="paper"] .conv-header,.conversation[data-look="paper"] .composer{background:#243044}
.conversation[data-look="ember"] .conv-header,.conversation[data-look="ember"] .composer{background:#3a1a12}
.conversation[data-look="ice"] .conv-header,.conversation[data-look="ice"] .composer{background:#163848}
.conversation[data-look="violet"] .conv-header,.conversation[data-look="violet"] .composer{background:#24143c}
.conversation[data-look="olive"] .conv-header,.conversation[data-look="olive"] .composer{background:#243016}
.conversation[data-look="copper"] .conv-header,.conversation[data-look="copper"] .composer{background:#3a2614}
.welcome-note{align-self:center;max-width:88%;background:rgba(0,0,0,.38);color:#f6e7c6;border-radius:14px;padding:8px 14px;text-align:center;margin:8px 0;font-size:14px}
.walls{display:flex;gap:8px;flex-wrap:wrap;margin:4px 0 10px}
.walls button{width:34px;height:34px;border-radius:50%;border:2px solid transparent;padding:0;cursor:pointer}
.walls button.on{border-color:#fff}
.gate-card .walls button {
  width: 34px;
  height: 34px;
  margin-top: 0;
  padding: 0;
  border-radius: 50%;
}
.walls [data-wall="night"]{background:#0e1621}
.walls [data-wall="sea"]{background:linear-gradient(180deg,#1a6f8a,#0c3b4a)}
.walls [data-wall="forest"]{background:linear-gradient(180deg,#2f8a52,#143222)}
.walls [data-wall="sand"]{background:linear-gradient(180deg,#e0b56a,#8a5a28)}
.walls [data-wall="dusk"]{background:linear-gradient(180deg,#c45b8a,#3a1848)}
.walls [data-wall="paper"]{background:linear-gradient(180deg,#8aa0b8,#2a3a4e)}
.walls [data-wall="ember"]{background:linear-gradient(180deg,#e07a48,#6a2414)}
.walls [data-wall="ice"]{background:linear-gradient(180deg,#9fd4e8,#1a4a62)}
.walls [data-wall="violet"]{background:linear-gradient(180deg,#b08ae0,#3a1868)}
.walls [data-wall="olive"]{background:linear-gradient(180deg,#b6c46a,#3a4a18)}
.walls [data-wall="copper"]{background:linear-gradient(180deg,#e0a060,#6a3a18)}

.messages::-webkit-scrollbar { width: 6px; }
.messages::-webkit-scrollbar-thumb { background: #3a4a58; border-radius: 4px; }

.day-sep {
  align-self: center;
  background: rgba(0,0,0,.28);
  color: #fff;
  font-size: 13px;
  padding: 4px 12px;
  border-radius: 12px;
  margin: 10px 0;
}

.msg {
  max-width: min(72%, 560px);
  padding: 7px 10px 5px 10px;
  border-radius: 12px;
  position: relative;
  line-height: 1.35;
  font-size: 15px;
  word-wrap: break-word;
  box-shadow: 0 1px 1px var(--shadow);
}
.msg.in {
  align-self: flex-start;
  background: var(--bubble-in);
  border-bottom-left-radius: 4px;
}
.msg.out {
  align-self: flex-end;
  background: var(--bubble-out);
  border-bottom-right-radius: 4px;
}
.msg .text { white-space: pre-wrap; }
.msg .meta {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  float: right;
  margin: 4px 0 0 10px;
  font-size: 11px;
  color: rgba(255,255,255,.65);
  transform: translateY(2px);
}
[data-theme="light"] .msg.in .meta { color: var(--muted); }
[data-theme="light"] .msg.out .meta { color: #4fae4e; }
.ticks { font-size: 14px; line-height: 1; }

.composer {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  padding: 8px 10px 10px;
  background: var(--header);
  border-top: 1px solid var(--border);
  position: relative;
}
.composer textarea {
  flex: 1;
  resize: none;
  max-height: 140px;
  background: var(--input);
  border: 1px solid transparent;
  border-radius: 18px;
  color: var(--text);
  padding: 10px 14px;
  font: inherit;
  font-size: 15px;
  outline: none;
  line-height: 1.35;
}
.send-btn {
  background: var(--blue);
  border: none;
  color: #fff;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  cursor: pointer;
}
.send-btn:hover { filter: brightness(1.08); }

#emojiBtn, #attachBtn { font-size: 22px; }
.emoji-panel {
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 64px;
  width: auto;
  max-height: 220px;
  overflow-y: auto;
  background: var(--sidebar);
  border-radius: 12px;
  padding: 10px;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
  box-shadow: 0 8px 32px var(--shadow);
  z-index: 30;
}
.emoji-panel button {
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  border-radius: 8px;
  padding: 4px;
}
.emoji-anim {
  display: inline-block;
  animation: emoji-bob 1.15s ease-in-out infinite;
  transform-origin: center bottom;
}
@keyframes emoji-bob {
  0%, 100% { transform: translateY(0) scale(1); }
  40% { transform: translateY(-4px) scale(1.18) rotate(-8deg); }
  70% { transform: translateY(0) scale(1) rotate(8deg); }
}
.emoji-panel button:hover { background: var(--hover); }

.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 20;
}
.drawer {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: 300px;
  background: var(--sidebar);
  z-index: 21;
  display: flex;
  flex-direction: column;
  box-shadow: 4px 0 24px var(--shadow);
}
.drawer-profile {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 28px 18px 20px;
  background: linear-gradient(160deg, #1c93d1, #2aabee);
  color: #fff;
}
.drawer-name { font-weight: 600; font-size: 16px; }
.drawer-phone { font-size: 13px; opacity: .9; margin-top: 2px; }
.drawer-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 14px 20px;
  background: none;
  border: none;
  color: var(--text);
  font: inherit;
  font-size: 15px;
  cursor: pointer;
  text-align: left;
}
.drawer-item:hover { background: var(--hover); }
.drawer-item svg { color: var(--muted); }
.drawer-footer {
  margin-top: auto;
  padding: 16px 20px 20px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
}

.routes-panel {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: #071018;
  display: flex;
  flex-direction: column;
}
.routes-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 52px;
  padding: 4px 8px;
  background: #0d1a28;
  border-bottom: 1px solid rgba(243,224,184,.16);
  position: relative;
  z-index: 5;
}
.routes-title {
  flex: 1;
  font-weight: 600;
  font-size: 15px;
  color: #f3e0b8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.routes-panel iframe {
  flex: 1;
  width: 100%;
  min-height: 0;
  border: 0;
  background: #071018;
  position: relative;
  z-index: 1;
}
#routesBack { width: 44px; height: 44px; font-size: 22px; }
.site-ptt {
  position: static;
  z-index: 2;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 6px;
  pointer-events: auto;
  flex: 0 0 auto;
}
#sitePttStatus {
  pointer-events: none;
  background: transparent;
  color: #f3e0b8;
  border-radius: 0;
  padding: 0;
  font-size: 11px;
  max-width: 72px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#sitePttBtn {
  pointer-events: auto;
  width: auto;
  height: 36px;
  padding: 0 12px;
  border: 0;
  border-radius: 999px;
  background: #2aabee;
  color: #fff;
  font: 800 13px/1 sans-serif;
  cursor: pointer;
  box-shadow: none;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}
#sitePttBtn.hot, .head-ptt.hot { background: #e23d3d; }
.head-ptt {
  width: auto;
  height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  background: #2aabee;
  color: #fff;
  font: 800 13px/1 sans-serif;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.system {
  align-self: center;
  font-size: 13px;
  color: #fff;
  background: rgba(0,0,0,.25);
  padding: 4px 10px;
  border-radius: 10px;
  margin: 6px 0;
}

.ptt-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 6px 10px 10px;
  background: var(--header);
}
.ptt-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 16px;
  width: 100%;
}
.ptt-status { font-size: 12px; color: var(--muted); min-height: 16px; }
.ptt-status.live { color: #ff6b6b; font-weight: 600; }
.ptt-status.rx { color: #7ee08a; font-weight: 600; }
.ptt-btn {
  width: 72px;
  height: 72px;
  border: none;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #3bc0ff, #1a8fd0 55%, #0d6ea8);
  color: #fff;
  box-shadow: 0 8px 20px rgba(42, 171, 238, .35);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  cursor: pointer;
  user-select: none;
  touch-action: none;
}
.chan-row { display: flex; gap: 8px; align-items: center; justify-content: center; margin-bottom: 8px; }
.chan-btn, #chanNum {
  border: 0;
  border-radius: 999px;
  padding: 8px 14px;
  background: #243242;
  color: #eef3f8;
  font: inherit;
}
.chan-btn.hot { background: #2aabee; color: #fff; }
#chanNum { width: 132px; text-align: center; }
.ptt-btn.ptt-vid {
  background: radial-gradient(circle at 30% 30%, #c9a227, #8a7014 55%, #5c4a0c);
  box-shadow: 0 8px 20px rgba(201, 162, 39, .35);
  font-size: 13px;
  font-weight: 700;
}
.ptt-btn.ptt-flip {
  width: 72px;
  height: 72px;
  font-size: 13px;
  background: #3d4f63;
}
.ptt-btn.ptt-vid.hot {
  background: radial-gradient(circle at 30% 30%, #ffd54f, #f9a825 60%, #ef6c00);
}
.ptt-preview {
  width: min(92vw, 420px);
  height: 240px;
  border-radius: 12px;
  background: #000;
  object-fit: cover;
}
#pttPreview:not(.hidden), #pttRemote:not(.hidden) {
  display: block !important;
  position: fixed;
  z-index: 40;
  left: 10px;
  right: 10px;
  width: auto;
  height: 240px;
  max-height: none;
}
#pttPreview:not(.hidden) { bottom: 132px; }
#pttRemote:not(.hidden) { bottom: 424px; }
#pttPreview.front { transform: scaleX(-1); }
.ptt-preview.hidden { display: none !important; }
.ptt-btn .ptt-label { font-size: 11px; font-weight: 700; letter-spacing: .08em; }
.ptt-btn:active, .ptt-btn.hot {
  transform: scale(1.04);
  background: radial-gradient(circle at 30% 30%, #ff8a80, #e53935 60%, #b71c1c);
  box-shadow: 0 0 0 6px rgba(229, 57, 53, .25);
}
.voice-msg { display: flex; align-items: center; gap: 8px; }
.voice-msg button {
  border: none;
  background: rgba(255,255,255,.15);
  color: inherit;
  border-radius: 16px;
  padding: 4px 10px;
  cursor: pointer;
}

.gate {
  position: fixed;
  inset: 0;
  background: rgba(8, 14, 20, .82);
  z-index: 40;
  display: grid;
  place-items: start center;
  overflow-y: auto;
  padding: 16px 16px 28px;
}
.gate-card {
  width: min(420px, 100%);
  margin: 12px auto;
  background: var(--sidebar);
  border-radius: 16px;
  padding: 22px 22px 18px;
  box-shadow: 0 16px 48px var(--shadow);
}
.gate-card h2 { margin-bottom: 8px; font-size: 20px; }
.gate-card p { color: var(--muted); font-size: 13px; line-height: 1.45; margin-bottom: 14px; }
.gate-card label { display: block; font-size: 12px; color: var(--muted); margin: 10px 0 4px; }
.gate-card input {
  width: 100%;
  background: var(--bg);
  border: 1px solid transparent;
  border-radius: 10px;
  color: var(--text);
  padding: 10px 12px;
  font: inherit;
}
.gate-card button {
  width: 100%;
  margin-top: 14px;
  border: none;
  border-radius: 10px;
  background: var(--blue);
  color: #fff;
  padding: 11px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.gate-card button.ghost {
  background: transparent;
  color: var(--muted);
  margin-top: 6px;
  font-weight: 500;
}

@media (max-width: 820px) {
  .sidebar { width: 100%; max-width: none; }
  .app.chat-open .sidebar { display: none; }
  .app:not(.chat-open) .chat-pane { display: none; }
  .back-btn { display: grid; }
  .messages { padding: 12px 10px; }
  .msg { max-width: 86%; }
}