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

:root {
  --bg:      #0a0c10;
  --bg2:     #13151f;
  --bg3:     #1a1d2e;
  --border:  #252840;
  --text:    #e2e8f0;
  --muted:   #6b7280;
  --accent:  #6366f1;
  --accent2: #818cf8;
  --green:   #22c55e;
  --red:     #ef4444;
  --amber:   #f59e0b;
  --accent-glow: #6366f128;
  --shadow:  0 4px 24px rgba(0,0,0,.5);
  --radius:  10px;
  --ease:    cubic-bezier(.4,0,.2,1);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

::selection { background: var(--accent-glow); color: var(--accent2); }

/* ── Header ──────────────────────────────────────────────────────── */
.header {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  height: 52px;
  padding: 0 18px;
  position: relative;
}
.header::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--accent) 0%, transparent 60%);
  opacity: .4;
  pointer-events: none;
}

.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--red);
  transition: background .4s var(--ease), box-shadow .4s var(--ease);
  box-shadow: 0 0 0 0 transparent;
}
.status-dot.connected {
  background: var(--green);
  box-shadow: 0 0 6px 1px #22c55e55;
}
.status-dot.waiting {
  background: var(--amber);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse    { 0%,100%{opacity:1} 50%{opacity:.35} }
@keyframes spin     { to{transform:rotate(360deg)} }
@keyframes fadeUp   { from{opacity:0;transform:translateY(6px)} to{opacity:1;transform:translateY(0)} }
@keyframes slideIn  { 0%{opacity:0;transform:translateY(10px)} 100%{opacity:1;transform:translateY(0)} }

.header-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -.3px;
  background: linear-gradient(135deg, var(--text) 30%, var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.header-status { font-size: 11px; color: var(--muted); margin-right: auto; letter-spacing: .2px; }

/* ── Nav tabs ─────────────────────────────────────────────────────── */
.tab-bar {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 9px;
  display: flex;
  gap: 2px;
  padding: 3px;
}

.tab-btn {
  background: none;
  border: none;
  border-radius: 7px;
  color: var(--muted);
  cursor: pointer;
  font-size: 11.5px;
  font-weight: 500;
  padding: 5px 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: all .18s var(--ease);
  letter-spacing: .1px;
}
.tab-btn:hover  { color: var(--text); background: rgba(255,255,255,.04); }
.tab-btn.active {
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  color: #fff;
  box-shadow: 0 1px 8px #6366f14a, inset 0 1px 0 rgba(255,255,255,.1);
}

/* ── Main content area ───────────────────────────────────────────── */
.main { flex: 1; display: flex; overflow: hidden; }

/* ── Common buttons ──────────────────────────────────────────────── */
.btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  padding: 7px 16px;
  white-space: nowrap;
  transition: all .18s var(--ease);
  letter-spacing: .15px;
}
.btn:hover         { background: rgba(255,255,255,.05); border-color: var(--accent2); color: var(--accent2); }
.btn:active        { transform: scale(.97); }
.btn.primary       { background: linear-gradient(135deg, var(--accent), #7c3aed); border-color: transparent; color: #fff; box-shadow: 0 2px 12px #6366f13a; }
.btn.primary:hover { filter: brightness(1.12); box-shadow: 0 4px 18px #6366f14a; }
.btn.danger        { color: var(--red); border-color: #ef444444; }
.btn.danger:hover  { background: #ef444418; border-color: #ef444466; }
.btn.sort-on       { border-color: var(--accent); color: var(--accent2); background: var(--accent-glow); }

/* ── Toast ───────────────────────────────────────────────────────── */
.toast {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,.6), 0 0 0 1px rgba(255,255,255,.04);
  min-width: 210px;
  padding: 12px 16px;
  font-size: 12px;
  z-index: 1000;
  position: fixed;
  bottom: 20px; right: 20px;
  animation: .22s fadeUp;
  backdrop-filter: blur(8px);
}
.toast-label { color: var(--text); font-weight: 500; margin-bottom: 7px; }
.toast-bar   { background: linear-gradient(90deg, var(--accent), var(--accent2)); border-radius: 3px; height: 3px; transition: width .25s var(--ease); }

/* ── Alert banner ────────────────────────────────────────────────── */
.alert-banner {
  background: rgba(127,29,29,.92);
  backdrop-filter: blur(8px);
  border: 1px solid #dc262655;
  border-radius: 12px;
  color: #fca5a5;
  cursor: pointer;
  font-size: 13px;
  line-height: 1.5;
  max-width: 380px;
  padding: 12px 20px;
  text-align: center;
  z-index: 9999;
  position: fixed;
  top: 62px; left: 50%;
  transform: translate(-50%);
  animation: .22s fadeUp;
  box-shadow: 0 4px 24px rgba(239,68,68,.2);
}