/* ── THE SIGNAL — Shared Design System ── */

/* ── CSS Variables ── */
:root {
  --cyan: #00e5ff;
  --cyan-dim: #00b8d4;
  --green: #39ff14;
  --green-dim: #2ecc40;
  --blue: #4fc3f7;
  --white: #e8f0fe;
  --white-dim: #b0bec5;
  --bg-deep: #0a0e17;
  --bg-card: #1a2332;
  --bg-card-mid: #243447;
  --bg-sidebar: #0d1220;
  --bg-feed: #0f1525;
  --border-glow: rgba(0, 229, 255, 0.35);
  --border-glow-strong: rgba(0, 229, 255, 0.6);
  --text-primary: #e8f0fe;
  --text-secondary: #8899aa;
  --font-heading: 'Orbitron', sans-serif;
  --font-data: 'JetBrains Mono', monospace;
  --font-body: 'Outfit', sans-serif;
  --sidebar-width: 62px;
  --feed-width: 272px;
  --glow-cyan: 0 0 12px rgba(0, 229, 255, 0.4), 0 0 30px rgba(0, 229, 255, 0.15);
  --glow-green: 0 0 12px rgba(57, 255, 20, 0.4), 0 0 30px rgba(57, 255, 20, 0.15);
  --glow-blue: 0 0 12px rgba(79, 195, 247, 0.4), 0 0 30px rgba(79, 195, 247, 0.15);
}

/* ── Reset ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 14px; }
body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  overflow-x: hidden;
  min-height: 100vh;
}

/* ── Atmospheric Background ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(0, 229, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at 30% 20%, rgba(0, 229, 255, 0.06) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 80%, rgba(57, 255, 20, 0.04) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ── Layout ── */
.layout { display: flex; min-height: 100vh; position: relative; z-index: 1; }

/* ── Left Nav Sidebar ── */
.nav-sidebar {
  position: fixed;
  left: 0; top: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-glow);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 0;
  z-index: 100;
  gap: 4px;
}
.nav-logo {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
  box-shadow: var(--glow-cyan);
}
.nav-logo svg { width: 20px; height: 20px; fill: var(--bg-deep); }
.nav-link {
  width: 42px; height: 42px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.25s;
  position: relative;
  cursor: pointer;
}
.nav-link:hover, .nav-link.active {
  background: rgba(0, 229, 255, 0.1);
  color: var(--cyan);
  box-shadow: inset 0 0 12px rgba(0, 229, 255, 0.1);
}
.nav-link.active::before {
  content: '';
  position: absolute;
  left: -10px;
  width: 3px; height: 24px;
  background: var(--cyan);
  border-radius: 0 3px 3px 0;
  box-shadow: 0 0 8px var(--cyan);
}
.nav-link svg { width: 20px; height: 20px; fill: currentColor; }
.nav-link .tooltip {
  position: absolute;
  left: 56px;
  background: var(--bg-card-mid);
  color: var(--text-primary);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-family: var(--font-data);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  border: 1px solid var(--border-glow);
}
.nav-link:hover .tooltip { opacity: 1; }

/* ── Main Content ── */
.main-content {
  margin-left: var(--sidebar-width);
  margin-right: var(--feed-width);
  flex: 1;
  padding: 24px 28px;
  min-height: 100vh;
}
.main-content.full { margin-right: 0; }

/* ── Activity Feed Sidebar ── */
.feed-sidebar {
  position: fixed;
  right: 0; top: 0;
  width: var(--feed-width);
  height: 100vh;
  background: var(--bg-feed);
  border-left: 1px solid var(--border-glow);
  padding: 20px 16px;
  overflow-y: auto;
  z-index: 100;
}
.feed-sidebar::-webkit-scrollbar { width: 4px; }
.feed-sidebar::-webkit-scrollbar-track { background: transparent; }
.feed-sidebar::-webkit-scrollbar-thumb { background: var(--border-glow); border-radius: 4px; }
.feed-title {
  font-family: var(--font-heading);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.feed-title .pulse {
  width: 8px; height: 8px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: var(--glow-green);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}
.feed-item {
  padding: 12px;
  border-left: 2px solid var(--border-glow);
  margin-bottom: 12px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-secondary);
  transition: all 0.2s;
}
.feed-item:hover { border-left-color: var(--cyan); background: rgba(0, 229, 255, 0.04); }
.feed-item .feed-time { font-family: var(--font-data); font-size: 10px; color: var(--cyan-dim); margin-bottom: 4px; }
.feed-item .feed-text { color: var(--text-primary); font-size: 12px; }
.feed-item .feed-agent { font-family: var(--font-data); color: var(--green); font-size: 10px; margin-top: 4px; }

/* ── Section Header ── */
.section-header {
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 32px 0 16px;
  display: flex; align-items: center; gap: 10px;
}
.section-header::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-glow), transparent);
}
.section-header .section-actions { margin-left: auto; display: flex; gap: 8px; }

/* ── Page Header ── */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.page-title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 4px;
  background: linear-gradient(135deg, var(--cyan), var(--white));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 20px rgba(0, 229, 255, 0.3));
}
.page-subtitle { font-family: var(--font-data); font-size: 11px; color: var(--text-secondary); }
.header-date { font-family: var(--font-data); font-size: 12px; color: var(--cyan-dim); text-align: right; }
.header-date .date-big { font-size: 14px; color: var(--cyan); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 10px; }

/* ── Card Base ── */
.card {
  background: var(--bg-card-mid);
  border: 1px solid var(--border-glow);
  border-radius: 12px;
  padding: 18px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.card:hover { border-color: var(--border-glow-strong); box-shadow: var(--glow-cyan); transform: translateY(-2px); }
.card::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.5;
}

/* ── Buttons ── */
.icon-btn {
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid var(--border-glow);
  color: var(--cyan);
  width: 34px; height: 34px;
  border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}
.icon-btn:hover { background: rgba(0, 229, 255, 0.2); box-shadow: var(--glow-cyan); }
.icon-btn svg { width: 16px; height: 16px; fill: currentColor; }

.refresh-btn {
  background: rgba(57, 255, 20, 0.08);
  border: 1px solid rgba(57, 255, 20, 0.35);
  color: var(--green);
  padding: 6px 12px;
  border-radius: 6px;
  font-family: var(--font-data);
  font-size: 10px;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex; align-items: center; gap: 6px;
  text-transform: uppercase;
}
.refresh-btn:hover { background: rgba(57, 255, 20, 0.2); box-shadow: var(--glow-green); }
.refresh-btn.loading { pointer-events: none; opacity: 0.6; }
.refresh-btn.loading .refresh-icon { animation: spin 1s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

.btn-primary {
  font-family: var(--font-data);
  font-size: 11px;
  background: rgba(0, 229, 255, 0.15);
  border: 1px solid var(--border-glow);
  color: var(--cyan);
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.btn-primary:hover { background: rgba(0, 229, 255, 0.25); box-shadow: var(--glow-cyan); }

.btn-ghost {
  font-family: var(--font-data);
  font-size: 10px;
  background: transparent;
  border: 1px solid var(--border-glow);
  color: var(--cyan);
  padding: 5px 10px;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.btn-ghost:hover { background: rgba(0, 229, 255, 0.1); }

/* ── LIVE badge ── */
.live-badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-family: var(--font-data);
  font-size: 8px;
  color: var(--green);
  letter-spacing: 1px;
  margin-left: 6px;
}
.live-badge::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--green); box-shadow: var(--glow-green);
  animation: pulse 2s ease-in-out infinite;
}
.live-badge.off { color: var(--text-secondary); }
.live-badge.off::before { background: var(--text-secondary); box-shadow: none; animation: none; }
.live-badge.error { color: #ff6b6b; }
.live-badge.error::before { background: #ff6b6b; box-shadow: 0 0 8px rgba(255,68,68,0.4); animation: none; }

.card.loading .stat-value, .card.loading .sparkline-container { opacity: 0.35; }

/* ── Sparkline ── */
.sparkline-container { height: 40px; position: relative; }
.sparkline-container svg { width: 100%; height: 100%; }

/* ── Settings Modal ── */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: none;
  align-items: center; justify-content: center;
  z-index: 1000;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--bg-card-mid);
  border: 1px solid var(--border-glow);
  border-radius: 14px;
  padding: 28px;
  width: 92%;
  max-width: 540px;
  box-shadow: var(--glow-cyan);
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}
.modal::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--green), var(--cyan));
  border-radius: 14px 14px 0 0;
}
.modal-title {
  font-family: var(--font-heading);
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--cyan);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.modal-subtitle { font-size: 12px; color: var(--text-secondary); margin-bottom: 20px; line-height: 1.5; }
.modal-section {
  font-family: var(--font-heading);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--cyan-dim);
  margin: 18px 0 10px;
  text-transform: uppercase;
  display: flex; align-items: center; gap: 8px;
}
.modal-section::after { content: ''; flex: 1; height: 1px; background: linear-gradient(90deg, var(--border-glow), transparent); }
.modal-field { margin-bottom: 12px; }
.modal-field label {
  display: block;
  font-family: var(--font-heading);
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--cyan-dim);
  margin-bottom: 6px;
  text-transform: uppercase;
}
.modal-field input, .modal-field textarea {
  width: 100%;
  background: var(--bg-deep);
  border: 1px solid var(--border-glow);
  color: var(--text-primary);
  padding: 10px 12px;
  border-radius: 6px;
  font-family: var(--font-data);
  font-size: 12px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  resize: vertical;
}
.modal-field input:focus, .modal-field textarea:focus { border-color: var(--cyan); box-shadow: 0 0 0 2px rgba(0,229,255,0.15); }
.modal-field .hint { font-size: 10px; color: var(--text-secondary); margin-top: 4px; font-family: var(--font-data); }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 22px; }
.modal-btn {
  font-family: var(--font-data);
  font-size: 11px;
  padding: 9px 18px;
  border-radius: 6px;
  cursor: pointer;
  letter-spacing: 1px;
  transition: all 0.2s;
  border: 1px solid var(--border-glow);
  background: transparent;
  color: var(--text-secondary);
  text-transform: uppercase;
}
.modal-btn.primary { background: rgba(0,229,255,0.15); color: var(--cyan); }
.modal-btn.primary:hover { background: rgba(0,229,255,0.28); box-shadow: var(--glow-cyan); }
.modal-btn:hover { color: var(--text-primary); border-color: var(--cyan); }
.modal-btn.danger { color: #ff6b6b; border-color: rgba(255,68,68,0.4); }
.modal-btn.danger:hover { background: rgba(255,68,68,0.15); border-color: #ff4444; }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card-mid);
  border: 1px solid var(--border-glow);
  border-radius: 8px;
  padding: 12px 18px;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--text-primary);
  box-shadow: var(--glow-cyan);
  z-index: 1100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  max-width: 480px;
}
.toast.show { opacity: 1; }
.toast.error { border-color: #ff4444; box-shadow: 0 0 12px rgba(255,68,68,0.4); color: #ff6b6b; }

/* ── Mobile (≤768px) ── */
@media (max-width: 768px) {
  :root { --sidebar-width: 52px; }

  .nav-sidebar { width: 52px; padding: 14px 0; gap: 8px; }
  .nav-link { width: 36px; height: 36px; }
  .nav-link svg { width: 18px; height: 18px; }
  .nav-link .tooltip { display: none; }

  .main-content,
  .main-content.full { margin-left: 52px; margin-right: 0; padding: 16px 14px; }

  .feed-sidebar { display: none; }

  .page-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .page-title { font-size: 22px; letter-spacing: 2px; }
  .page-subtitle { font-size: 11px; }
  .header-actions { width: 100%; flex-wrap: wrap; gap: 8px; }
  .header-date { display: none; }

  .section-header { flex-wrap: wrap; }

  .modal { width: 100%; max-width: 100%; padding: 22px 18px; border-radius: 12px; max-height: 85vh; }
  .modal-actions { flex-wrap: wrap; gap: 6px; }
  .modal-btn { flex: 1 1 auto; padding: 12px 14px; }
  .modal-field input, .modal-field textarea { font-size: 16px; padding: 12px; }

  .toast { left: 14px; right: 14px; transform: none; bottom: 16px; text-align: center; max-width: none; }
}

/* ── Table (used by performance/agents/clients) ── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.data-table th {
  font-family: var(--font-heading);
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--cyan-dim);
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-glow);
  text-transform: uppercase;
}
.data-table td {
  padding: 12px;
  border-bottom: 1px solid rgba(0, 229, 255, 0.1);
  color: var(--text-primary);
  vertical-align: middle;
}
.data-table tr:hover td { background: rgba(0, 229, 255, 0.04); }
.data-table td.num { font-family: var(--font-data); color: var(--white); }
.data-table td.green { color: var(--green); font-family: var(--font-data); }
.data-table td.dim { color: var(--text-secondary); font-family: var(--font-data); }
.data-table .mini-spark { width: 80px; height: 24px; }

/* ── Fade-up Animations ── */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.6s ease forwards;
}
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }
.delay-6 { animation-delay: 0.6s; }
.delay-7 { animation-delay: 0.7s; }
.delay-8 { animation-delay: 0.8s; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-glow); border-radius: 3px; }