/* style.css – Price Theorem UI
   ---------------------------------------------------------- */
:root{
  --bg: #f9fafb;
  --fg: #1e293b;
  --muted: #64748b;
  --card: #ffffff;
  --card-border: #e5e7eb;
  --card-head: #f1f5f9;
  --accent: #3b82f6;
  --accent-light: #e2e8f0;
  --success: #16a34a;
  --danger: #dc2626;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,.1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --th-pad: 12px;
  --td-pad: 12px;
  --fz: 14px;
}
/* Basic reset */
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--fg);
  line-height:1.5;
}

/* Layout */
.container{max-width:1400px;margin:auto;padding:20px}
h1{font-size:28px;font-weight:600;margin-bottom:16px}

/* Kite login box */
.login-box{
  background:var(--card);
  padding:20px;
  margin-bottom:24px;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  text-align:center;
}
.login-btn{
  display:inline-block;
  background:#10b981;
  color:#fff;
  text-decoration:none;
  padding:12px 24px;
  border-radius:8px;
  font-weight:600;
  transition:background .2s;
}
.login-btn:hover{background:#059669}

/* Tabs */
.tabs{display:flex;gap:10px;margin-bottom:16px}
.tab-btn{
  padding:8px 16px;
  border-radius:6px;
  font-weight:600;
  background:var(--accent-light);
  cursor:pointer;
  border:none;
  transition:background .15s,color .15s;
}
.tab-btn.active{
  background:var(--accent);
  color:#fff;
}
.tab-pane{display:none}
.tab-pane.active{display:block}

/* Tables */
table{
  width:100%;
  border-collapse:collapse;
  margin-top:10px;
  background:var(--card);
  border-radius:8px;
  overflow:hidden;
}
th,td{
  padding:var(--td-pad);
  border-bottom:1px solid var(--card-border);
  text-align:center;
  font-size:var(--fz);
}
th{
  background:var(--card-head);
  font-weight:600;
  cursor:pointer;
  user-select:none;
  position:relative;
  padding:var(--th-pad);
}
th.sort-asc::after,
th.sort-desc::after{
  position:absolute;
  right:8px;
  font-size:11px;
  color:var(--accent);
  line-height:1;
}
th.sort-asc::after{content:"▲";}
th.sort-desc::after{content:"▼";}

tr:hover{background:#f8fafc}
.no-data{
  text-align:center;
  padding:40px;
  color:var(--muted);
}

/* Numbers */
.pos{color:var(--success)}
.neg{color:var(--danger)}
.symbol{font-weight:600}
.volume-tags{
  font-family:var(--mono);
  font-size:12px;
  white-space:nowrap;
}

/* Responsive */
@media (max-width:768px){
  .container{padding:12px}
  h1{font-size:24px}
  th,td{padding:10px 8px;font-size:13px}
  table{min-width:800px}
  .tab-pane{overflow-x:auto}
}

/* Optional dark mode toggle (use body.dark) */
body.dark{
  --bg:#0f172a;
  --fg:#e2e8f0;
  --muted:#94a3b8;
  --card:#1e293b;
  --card-head:#334155;
  --card-border:#334155;
  --accent:#3b82f6;
  --accent-light:#475569;
  --shadow:none;
}
body.dark tr:hover{background:#1e293b}