:root {
  --bg-dark: #0b0f19;
  --bg-card: rgba(18, 24, 38, 0.75);
  --bg-card-hover: rgba(25, 34, 54, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(99, 102, 241, 0.3);
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --accent-cyan: #06b6d4;
  --accent-purple: #8b5cf6;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --green: #10b981;
  --green-bg: rgba(16, 185, 129, 0.12);
  --red: #ef4444;
  --red-bg: rgba(239, 68, 68, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-main);
  min-height: 100vh;
  line-height: 1.5;
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.08) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(6, 182, 212, 0.05) 0px, transparent 50%);
  background-attachment: fixed;
}

.mono {
  font-family: var(--font-mono);
}

.app-layout {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* NAVBAR */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: 1.25rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand-icon {
  font-size: 2rem;
  line-height: 1;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.nav-stats {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.stat-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.stat-label {
  color: var(--text-muted);
}

.stat-value {
  font-weight: 600;
  color: #fff;
}

.highlight-equity {
  border-color: rgba(99, 102, 241, 0.4);
  background: rgba(99, 102, 241, 0.1);
}

.highlight-equity .stat-value {
  color: #a5b4fc;
}

.mode-pill {
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-cyan);
  border-color: rgba(6, 182, 212, 0.3);
}

.pulse-green {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
}

/* SUBNAV TABS */
.subnav {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
}

.nav-tab {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-tab:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.04);
}

.nav-tab.active {
  color: #fff;
  background: var(--bg-card);
  border-color: var(--border-highlight);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.15);
}

/* CARDS & SECTIONS */
.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.weekday-notice {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  background: var(--green-bg);
  color: var(--green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.card-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
}

.card-header h3 {
  font-size: 1.05rem;
  font-weight: 600;
}

/* SLOTS GRID */
.slots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25rem;
}

.slot-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  position: relative;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.slot-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.slot-card.empty {
  border-style: dashed;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: var(--text-muted);
}

.slot-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.slot-sym {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.slot-pnl {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.pnl-pos { color: var(--green); }
.pnl-neg { color: var(--red); }

.slot-meta-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  padding: 0.3rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.slot-meta-row span:first-child {
  color: var(--text-muted);
}

/* METRICS GRID */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.metric-card.highlight {
  border-color: rgba(99, 102, 241, 0.4);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(18, 24, 38, 0.8));
}

.metric-card.highlight-purple {
  border-color: rgba(139, 92, 246, 0.4);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.12), rgba(18, 24, 38, 0.8));
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.metric-value {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 0.3rem 0;
}

.metric-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* DATA TABLES */
.table-card {
  padding: 0;
  overflow: hidden;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.data-table th {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-muted);
  font-weight: 600;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  white-space: nowrap;
}

.data-table tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* UNIVERSE BADGES */
.universe-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.uni-badge {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: #cbd5e1;
}

/* FORMS */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: #cbd5e1;
}

.form-control {
  width: 100%;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.8rem;
  color: #fff;
  font-size: 0.88rem;
  transition: border-color 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-danger {
  background: var(--red-bg);
  color: var(--red);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: var(--red);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.06);
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

/* LOGS */
.log-card {
  padding: 1rem;
}

.log-container {
  height: 500px;
  overflow-y: auto;
  background: rgba(0, 0, 0, 0.4);
  border-radius: var(--radius-sm);
  padding: 1rem;
  font-size: 0.82rem;
  color: #94a3b8;
  white-space: pre-wrap;
  word-break: break-all;
}

.log-line {
  padding: 0.2rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

.log-INFO { color: #94a3b8; }
.log-ENTRY { color: #38bdf8; font-weight: 600; }
.log-EXIT { color: #f43f5e; font-weight: 600; }
.log-WARN { color: #fbbf24; }
.log-ERROR { color: #ef4444; font-weight: 700; }

/* MODAL */
.modal-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 9999;
  justify-content: center;
  align-items: center;
}

.modal-backdrop.show {
  display: flex;
}

.modal-box {
  background: #111827;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
}

.modal-box h3 {
  font-size: 1.3rem;
  margin-bottom: 0.3rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.save-status-msg {
  margin-left: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--green);
}