/* Arbitrage Trader Dashboard — Dark Theme */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --border: #30363d;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --accent-blue: #58a6ff;
  --accent-green: #3fb950;
  --accent-red: #f85149;
  --accent-orange: #d29922;
  --accent-purple: #bc8cff;
  --badge-paper: #1f3a52;
  --shadow: 0 4px 16px rgba(0,0,0,.4);
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

/* Layout */
.header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-title { font-size: 18px; font-weight: 700; color: var(--accent-blue); }
.header-subtitle { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.header-right { display: flex; align-items: center; gap: 16px; }
.paper-badge {
  background: var(--badge-paper);
  color: var(--accent-blue);
  border: 1px solid var(--accent-blue);
  border-radius: 4px;
  padding: 3px 8px;
  font-size: 12px;
  font-weight: 600;
}
.logout-btn {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 12px;
  cursor: pointer;
  font-size: 13px;
  transition: all .15s;
}
.logout-btn:hover { color: var(--text-primary); border-color: var(--text-secondary); }

/* Tabs */
.tabs {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  display: flex;
  gap: 0;
}
.tab-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  padding: 12px 16px;
  transition: all .15s;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active { color: var(--accent-blue); border-bottom-color: var(--accent-blue); }

.tab-content { display: none; }
.tab-content.active { display: block; }

.main-content { padding: 24px; max-width: 1400px; margin: 0 auto; }

/* Cards */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
}
.card-title {
  font-size: 13px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 8px;
}
.card-value { font-size: 28px; font-weight: 700; }
.card-sub { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

/* Grid layouts */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* Tables */
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
thead tr { border-bottom: 1px solid var(--border); }
th {
  text-align: left;
  padding: 10px 12px;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .04em;
  white-space: nowrap;
}
td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-tertiary); }
.actionable-row { background: rgba(63,185,80,.05); }
.actionable-row:hover td { background: rgba(63,185,80,.1); }

/* Values */
.positive { color: var(--accent-green); }
.negative { color: var(--accent-red); }
.neutral { color: var(--text-secondary); }
.highlight { color: var(--accent-blue); font-weight: 600; }

/* Badges */
.badge {
  display: inline-block;
  border-radius: 4px;
  padding: 2px 7px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .03em;
}
.badge-green { background: rgba(63,185,80,.15); color: var(--accent-green); }
.badge-red { background: rgba(248,81,73,.15); color: var(--accent-red); }
.badge-blue { background: rgba(88,166,255,.15); color: var(--accent-blue); }
.badge-orange { background: rgba(210,153,34,.15); color: var(--accent-orange); }
.badge-purple { background: rgba(188,140,255,.15); color: var(--accent-purple); }

/* Alerts */
.alert {
  border-radius: 8px;
  padding: 14px 18px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.alert-danger {
  background: rgba(248,81,73,.1);
  border: 1px solid var(--accent-red);
  color: var(--accent-red);
}
.alert-warning {
  background: rgba(210,153,34,.1);
  border: 1px solid var(--accent-orange);
  color: var(--accent-orange);
}
.alert-info {
  background: rgba(88,166,255,.1);
  border: 1px solid var(--accent-blue);
  color: var(--accent-blue);
}

/* UNBALANCED highlight */
.status-unbalanced { color: var(--accent-red); font-weight: 700; animation: pulse .8s ease-in-out infinite alternate; }
@keyframes pulse { from { opacity: 1; } to { opacity: .5; } }

/* Buttons */
.btn {
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 14px;
  transition: all .15s;
}
.btn-green { background: var(--accent-green); color: #000; }
.btn-green:hover { background: #52d468; }
.btn-red { background: var(--accent-red); color: #fff; }
.btn-red:hover { background: #ff6b6b; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
}
.btn-outline:hover { border-color: var(--text-secondary); }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.form-input {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 14px;
  padding: 9px 12px;
  outline: none;
  transition: border-color .15s;
}
.form-input:focus { border-color: var(--accent-blue); }

/* Refresh indicator */
.refresh-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
}
.refresh-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: .2; } }

/* Section headers */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.section-title { font-size: 16px; font-weight: 700; }

/* Loading / empty states */
.empty-state {
  text-align: center;
  padding: 48px 0;
  color: var(--text-secondary);
}
.empty-state p { margin-top: 8px; font-size: 13px; }

/* Responsive */
@media (max-width: 768px) {
  .grid-4, .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .main-content { padding: 16px; }
}
@media (max-width: 480px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}
/* ============================================================
   MOBILE ADDITIONS — Arbitrage
   ============================================================ */
.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;z-index:300;background:var(--bg-secondary);border-top:1px solid var(--border);height:60px;padding-bottom:env(safe-area-inset-bottom,0)}
.bottom-nav-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;gap:2px;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;padding:6px 2px;min-height:44px;font-size:10px;position:relative}
.bottom-nav-btn .bottom-nav-icon{font-size:18px;line-height:1}
.bottom-nav-btn .bottom-nav-label{font-size:10px;line-height:1}
.bottom-nav-btn.active{color:var(--accent-blue)}
.approval-count-badge{display:inline-block;min-width:15px;height:15px;background:var(--accent-orange);color:#fff;border-radius:8px;font-size:9px;font-weight:700;padding:0 3px;line-height:15px;text-align:center;margin-left:4px;vertical-align:middle}
.bottom-nav-btn .approval-count-badge{position:absolute;top:4px;right:calc(50% - 20px);margin:0}
@media(max-width:768px){
  .bottom-nav{display:flex}
  .tabs{display:none}
  .header{padding:8px 14px}
  .header-subtitle{display:none}
  .header-title{font-size:15px}
  .refresh-indicator{display:none}
  .paper-badge{font-size:10px;padding:2px 6px}
  .logout-btn{padding:5px 10px;font-size:12px}
  .main-content{padding:12px;padding-bottom:calc(68px + env(safe-area-inset-bottom,0))}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr!important}
  .card{padding:14px}
  .card-value{font-size:22px!important}
  .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
  table{font-size:12px}
  th,td{padding:8px 10px;white-space:nowrap}
  .section-header{flex-wrap:wrap;gap:8px}
  #toast-container{bottom:70px!important}
}
@media(min-width:769px){.bottom-nav{display:none}}

/* Force hide top tabs on mobile — stronger specificity */
@media (max-width: 768px) {
  .tabs { display: none !important; }
  .bottom-nav { display: flex !important; z-index: 9999 !important; }
  .bottom-nav-btn { pointer-events: auto !important; cursor: pointer !important; }
}

@media (max-width: 768px) {
  .tabs { display: none !important; pointer-events: none !important; }
  .bottom-nav { display: flex !important; z-index: 9999 !important; }
  .bottom-nav-btn { pointer-events: auto !important; -webkit-tap-highlight-color: rgba(88,166,255,0.2); }
  .tab-content.active { padding-bottom: 70px; }
}

/* Force tab visibility fix */
.tab-content { display: none !important; }
.tab-content.active { display: block !important; min-height: 200px; }