/* ========== Variables ========== */
:root {
  --bg: #0c111b;
  --surface: #151c2c;
  --surface2: #1a2236;
  --border: rgba(255,255,255,0.06);
  --text: #e2e8f0;
  --text-muted: #64748b;
  --accent: #7c3aed;
  --accent-glow: rgba(124,58,237,0.25);
  --red: #ef4444;
  --green: #22c55e;
  --blue: #3b82f6;
  --radius: 12px;
  --radius-sm: 8px;
}

/* ========== Reset ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ========== Top Bar ========== */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}
.topbar-left {
  display: flex;
  align-items: center;
  gap: 14px;
}
.logo {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #6d28d9);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 20px var(--accent-glow);
}
.topbar h1 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.topbar-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* SSE status dot */
.status-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--red);
  transition: background 0.3s;
}
.status-dot.connected {
  background: var(--green);
  box-shadow: 0 0 8px rgba(34,197,94,0.5);
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}
.btn:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.12);
}
.btn-icon {
  padding: 8px;
}
.btn-danger {
  background: rgba(239,68,68,0.1);
  border-color: rgba(239,68,68,0.25);
  color: var(--red);
}
.btn-danger:hover {
  background: rgba(239,68,68,0.2);
  border-color: var(--red);
}
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-muted);
}
.btn-ghost:hover {
  color: var(--text);
}

/* ========== Stats Bar ========== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 24px 32px 0;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-num {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.stat-a .stat-num { color: var(--red); }
.stat-b .stat-num { color: var(--green); }
.stat-c .stat-num { color: var(--blue); }

/* ========== Main Grid ========== */
.main {
  padding: 24px 32px 48px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

/* ========== Column ========== */
.column {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.column-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.92rem;
}
.column-count {
  margin-left: auto;
  background: rgba(255,255,255,0.06);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
}
.column-body {
  padding: 8px;
}

/* ========== Parcel Row ========== */
.parcel-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  transition: background 0.12s;
}
.parcel-row:hover {
  background: rgba(255,255,255,0.03);
}
.parcel-name {
  font-weight: 600;
  font-size: 0.9rem;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ========== Badges ========== */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.75rem;
}
.badge-A { background: rgba(239,68,68,0.12); color: var(--red); }
.badge-B { background: rgba(34,197,94,0.12); color: var(--green); }
.badge-C { background: rgba(59,130,246,0.12); color: var(--blue); }

/* ========== Status chip ========== */
.parcel-status {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
}
.parcel-status.success {
  background: rgba(34,197,94,0.1);
  color: var(--green);
}

/* ========== Empty state ========== */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 64px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ========== Delete Modal ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  max-width: 400px;
  width: 90%;
  text-align: center;
}
.modal h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}
.modal p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .topbar { padding: 14px 16px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); padding: 16px; gap: 10px; }
  .main { padding: 16px; }
  .grid { grid-template-columns: 1fr; }
  .topbar-actions { gap: 6px; }
  .btn-danger span { display: none; }
}