/* Spector — dark surveillance theme */
:root {
  --bg: #0a0e14;
  --panel: #0e141d;
  --panel-2: #111926;
  --border: #1c2836;
  --border-soft: #16202c;
  --text: #c8d3de;
  --dim: #64748b;
  --faint: #3d4a5a;
  --accent: #3ddc84;
  --accent-dim: #1f7a4d;
  --accent-glow: rgba(61, 220, 132, 0.12);
  --danger: #ff5d5d;
  --amber: #ffb454;
  --mono: ui-monospace, "Cascadia Mono", "JetBrains Mono", Consolas, monospace;
  --sans: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  overflow: hidden;
}

.hidden { display: none !important; }

button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }

/* ═══════════ GATE ═══════════ */

.gate {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(61, 220, 132, 0.05), transparent),
    var(--bg);
}

.gate-inner {
  width: min(420px, 92vw);
  padding: 44px 36px 30px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.gate-inner::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.gate-logo h1 {
  font-family: var(--mono);
  font-size: 30px;
  letter-spacing: 12px;
  margin-top: 14px;
  color: var(--accent);
  text-shadow: 0 0 24px var(--accent-glow);
}

.gate-sub {
  color: var(--dim);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 6px;
}

#gate-form {
  margin-top: 30px;
  display: flex;
  gap: 8px;
}

#gate-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 14px;
  padding: 11px 12px;
  letter-spacing: 1px;
  outline: none;
  transition: border-color 0.15s;
}

#gate-input:focus { border-color: var(--accent-dim); }
#gate-input::placeholder { color: var(--faint); letter-spacing: 2px; }

#gate-btn {
  background: var(--accent);
  color: #06210f;
  border: none;
  border-radius: 6px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 2px;
  padding: 0 22px;
  transition: filter 0.15s;
}

#gate-btn:hover { filter: brightness(1.12); }
#gate-btn:disabled { opacity: 0.5; cursor: wait; }

.gate-error {
  margin-top: 14px;
  color: var(--danger);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 2px;
}

.gate-foot {
  margin-top: 26px;
  color: var(--faint);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

.gate-inner.shake { animation: shake 0.25s ease; }

/* ═══════════ DASHBOARD SHELL ═══════════ */

.dash {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 0 18px;
  height: 54px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--accent);
  font-size: 15px;
}

.tabs { display: flex; gap: 4px; height: 100%; }

.tab {
  background: none;
  border: none;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 1.5px;
  padding: 0 16px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s;
}

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

.top-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 14px;
}

.stats { display: flex; gap: 6px; }

.stat-chip {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  padding: 4px 9px;
}

.stat-chip b { color: var(--accent); font-weight: 600; }

.ghost-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--dim);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  border-radius: 5px;
  padding: 6px 13px;
  transition: all 0.15s;
}

.ghost-btn:hover { border-color: var(--danger); color: var(--danger); }

/* ═══════════ TAB PANES / PANELS ═══════════ */

.tabpane {
  flex: 1;
  min-height: 0;
  display: none;
  padding: 14px;
  gap: 14px;
}

.tabpane.active { display: grid; }

.users-layout { grid-template-columns: 320px 1fr; }
.conversations-layout { grid-template-columns: 280px 330px 1fr; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 13px;
  border-bottom: 1px solid var(--border-soft);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--dim);
  flex-shrink: 0;
}

.panel-head input {
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  color: var(--text);
  font-size: 12px;
  padding: 5px 9px;
  width: 130px;
  outline: none;
}

.panel-head input:focus { border-color: var(--accent-dim); }

.scroll { flex: 1; overflow-y: auto; min-height: 0; }

.scroll::-webkit-scrollbar { width: 8px; }
.scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.scroll::-webkit-scrollbar-thumb:hover { background: var(--faint); }

.placeholder-row, .empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--faint);
  font-family: var(--mono);
  letter-spacing: 2px;
  font-size: 12px;
}

.empty-eye { font-size: 26px; color: var(--accent-dim); text-align: center; margin-bottom: 10px; }
.empty-state p { text-align: center; text-transform: uppercase; }

/* ═══════════ USER LIST ROWS ═══════════ */

.user-row {
  padding: 10px 13px;
  border-bottom: 1px solid var(--border-soft);
  cursor: pointer;
  transition: background 0.12s;
  border-left: 2px solid transparent;
}

.user-row:hover { background: var(--panel-2); }
.user-row.active { background: var(--accent-glow); border-left-color: var(--accent); }

.user-row .r-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}

.user-row .r-name {
  font-family: var(--mono);
  color: var(--text);
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-row .r-time { color: var(--faint); font-size: 10px; flex-shrink: 0; }

.user-row .r-sub {
  display: flex;
  justify-content: space-between;
  margin-top: 3px;
  color: var(--dim);
  font-size: 11px;
}

.user-row .r-hash { font-family: var(--mono); color: var(--faint); font-size: 10px; }

.dot { width: 7px; height: 7px; border-radius: 50%; display: inline-block; margin-right: 6px; }
.dot.online { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.dot.offline { background: var(--faint); }

/* ═══════════ USER DETAIL ═══════════ */

.detail-panel .scroll { padding: 22px 26px; }

.ud-head { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }

.ud-avatar {
  width: 58px;
  height: 58px;
  border-radius: 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 22px;
  color: var(--accent);
}

.ud-title .ud-username {
  font-family: var(--mono);
  font-size: 20px;
  color: var(--text);
}

.ud-title .ud-name { color: var(--dim); margin-top: 2px; }

.badge {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 1.5px;
  border-radius: 3px;
  padding: 3px 7px;
  vertical-align: 3px;
  margin-left: 10px;
}

.badge.online { background: var(--accent-glow); color: var(--accent); border: 1px solid var(--accent-dim); }
.badge.offline { background: rgba(100, 116, 139, 0.1); color: var(--dim); border: 1px solid var(--border); }
.badge.banned { background: rgba(255, 93, 93, 0.1); color: var(--danger); border: 1px solid var(--danger); }

.ud-section { margin-bottom: 22px; }

.ud-section h3 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 2.5px;
  color: var(--accent-dim);
  text-transform: uppercase;
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-soft);
}

.kv {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 8px 14px;
  font-size: 13px;
}

.kv dt { color: var(--dim); }
.kv dd { color: var(--text); word-break: break-all; }

.kv dd.mono { font-family: var(--mono); font-size: 12px; color: var(--accent); }
.kv dd .copyable { cursor: pointer; border-bottom: 1px dotted var(--accent-dim); }
.kv dd .copyable:hover { color: #7dffbb; }

.ud-metrics { display: flex; gap: 12px; }

.metric {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 14px;
  text-align: center;
}

.metric .m-val { font-family: var(--mono); font-size: 24px; color: var(--accent); }
.metric .m-label { color: var(--dim); font-size: 10px; letter-spacing: 1.5px; text-transform: uppercase; margin-top: 4px; }

/* ═══════════ CONVERSATION LIST ═══════════ */

.conv-row {
  padding: 11px 13px;
  border-bottom: 1px solid var(--border-soft);
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: background 0.12s;
}

.conv-row:hover { background: var(--panel-2); }
.conv-row.active { background: var(--accent-glow); border-left-color: var(--accent); }

.conv-row .r-top { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }

.conv-row .r-name { font-family: var(--mono); font-size: 13px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.conv-row .r-preview {
  color: var(--dim);
  font-size: 11.5px;
  margin-top: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conv-row .r-preview .ic { color: var(--accent-dim); font-family: var(--mono); }
.conv-row .r-meta { color: var(--faint); font-size: 10px; margin-top: 3px; display: flex; gap: 10px; }

/* ═══════════ THREAD ═══════════ */

.thread-head {
  padding: 11px 16px;
  border-bottom: 1px solid var(--border-soft);
  flex-shrink: 0;
}

.thread-head .t-title {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--text);
}

.thread-head .t-title .arrow { color: var(--accent); }

.thread-head .t-sub { color: var(--faint); font-size: 11px; margin-top: 2px; }

.thread-scroll { padding: 18px 20px; display: flex; flex-direction: column; gap: 14px; }

.msg { max-width: 72%; display: flex; flex-direction: column; gap: 3px; }

.msg.mine { align-self: flex-end; align-items: flex-end; }
.msg.theirs { align-self: flex-start; align-items: flex-start; }

.msg .m-sender { font-family: var(--mono); font-size: 10px; letter-spacing: 1px; color: var(--faint); }
.msg.mine .m-sender { color: var(--accent-dim); }

.msg .m-body {
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 13.5px;
  line-height: 1.45;
  word-break: break-word;
  white-space: pre-wrap;
}

.msg.mine .m-body { background: rgba(61, 220, 132, 0.08); border-color: var(--accent-dim); }

.msg .m-time { font-family: var(--mono); font-size: 9.5px; color: var(--faint); letter-spacing: 0.5px; }

.msg .m-img {
  max-width: 320px;
  max-height: 320px;
  border-radius: 10px;
  border: 1px solid var(--border);
  display: block;
  cursor: zoom-in;
}

.msg .m-img-error {
  color: var(--amber);
  font-family: var(--mono);
  font-size: 11px;
  border: 1px dashed var(--amber);
  border-radius: 8px;
  padding: 8px 12px;
}

.day-sep {
  text-align: center;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--faint);
  position: relative;
  margin: 6px 0;
}

.day-sep::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 50%;
  height: 1px;
  background: var(--border-soft);
  z-index: 0;
}

.day-sep span { background: var(--panel); padding: 0 12px; position: relative; z-index: 1; }

/* ═══════════ TOAST ═══════════ */

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 18px;
  font-family: var(--mono);
  font-size: 12px;
  z-index: 100;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

.toast.error { border-color: var(--danger); color: var(--danger); }

@media (max-width: 900px) {
  .users-layout { grid-template-columns: 1fr; }
  .conversations-layout { grid-template-columns: 1fr; }
  body { overflow: auto; }
  .tabpane { overflow-y: auto; }
  .panel { min-height: 300px; }
}