/* Dixi Control Plane — institutional dark graphite theme.
   No external fonts or CDNs. High-contrast status accents, reduced-motion aware. */

:root {
  --bg: #0d1117;
  --bg-elev: #151b24;
  --bg-elev-2: #1b2330;
  --panel: #131a23;
  --border: #26313f;
  --border-strong: #37475a;
  --text: #e6edf3;
  --text-muted: #8b98a9;
  --accent: #34d3e0;      /* cyan */
  --ok: #3fb950;          /* green */
  --warn: #d9a441;        /* amber */
  --danger: #f0553f;      /* red */
  --danger-strong: #ff6b52;
  --shadow: 0 6px 24px rgba(0,0,0,0.45);
  --radius: 10px;
  --mono: ui-monospace, "SFMono-Regular", "Menlo", "Consolas", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  height: 100%;
}

code { font-family: var(--mono); color: var(--accent); }
.muted { color: var(--text-muted); }
.small { font-size: 12px; }
.error-text { color: var(--danger-strong); }

button { font-family: inherit; cursor: pointer; }
button:focus-visible, input:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Buttons */
.btn {
  border: 1px solid var(--border-strong);
  background: var(--bg-elev-2);
  color: var(--text);
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13px;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { background: var(--bg-elev); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #06232a; border-color: var(--accent); font-weight: 600; }
.btn-primary:hover { background: #4fe0ec; }
.btn-danger { background: transparent; color: var(--danger-strong); border-color: var(--danger); }
.btn-danger[aria-pressed="true"] { background: var(--danger); color: #1a0503; font-weight: 700; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-muted); }
.btn-ghost:hover { color: var(--text); background: var(--bg-elev); }
.icon-btn { background: transparent; border: none; color: var(--text); font-size: 18px; }

/* Login */
.login-view {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(1200px 600px at 50% -10%, #16202c 0%, var(--bg) 60%);
}
.login-card {
  width: 360px; background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 8px;
}
.login-card h1 { margin: 0 0 2px; font-size: 20px; }
.login-card label { font-size: 12px; color: var(--text-muted); margin-top: 8px; }
.login-card input {
  background: var(--bg); border: 1px solid var(--border-strong); color: var(--text);
  border-radius: 8px; padding: 9px 11px; font-size: 14px;
}
.login-card .btn-primary { margin-top: 16px; }

/* Banner */
.banner { padding: 8px 16px; text-align: center; font-weight: 600; font-size: 13px; }
.banner-error { background: var(--danger); color: #200604; }

/* Shell */
.app-shell { display: flex; flex-direction: column; height: 100vh; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 16px; height: 52px; background: var(--bg-elev);
  border-bottom: 1px solid var(--border); gap: 12px;
}
.topbar-left, .topbar-center, .topbar-right { display: flex; align-items: center; gap: 10px; }
.brand { font-weight: 800; letter-spacing: 2px; color: var(--accent); }
.badge { font-size: 10px; padding: 2px 7px; border-radius: 20px; font-weight: 700; letter-spacing: 0.5px; }
.badge-sim { background: rgba(217,164,65,0.15); color: var(--warn); border: 1px solid var(--warn); }
.status-chip {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px;
  padding: 4px 10px; background: var(--bg-elev-2); border: 1px solid var(--border);
  border-radius: 20px; color: var(--text-muted);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-muted); }
.dot.ok { background: var(--ok); } .dot.warn { background: var(--warn); }
.dot.danger { background: var(--danger); } .dot.accent { background: var(--accent); }

.body-grid { display: flex; flex: 1; min-height: 0; }
.side-nav {
  width: 232px; background: var(--panel); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; justify-content: space-between; padding: 12px 0;
}
.side-nav ul { list-style: none; margin: 0; padding: 0 10px; display: flex; flex-direction: column; gap: 2px; }
.nav-item {
  width: 100%; text-align: left; background: transparent; border: none; color: var(--text-muted);
  padding: 10px 12px; border-radius: 8px; font-size: 13px;
}
.nav-item:hover { background: var(--bg-elev); color: var(--text); }
.nav-item.active { background: var(--bg-elev-2); color: var(--text); border-left: 3px solid var(--accent); }
.nav-footer { padding: 10px 18px; }

.main-content { flex: 1; overflow-y: auto; padding: 20px 24px; }

/* View headers */
.view-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }
.view-header h1 { font-size: 20px; margin: 0; }

/* Cards & grids */
.grid { display: grid; gap: 14px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow);
}
.card h2, .card h3 { margin: 0 0 10px; font-size: 14px; color: var(--text-muted); font-weight: 600; }
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat .label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-muted); }
.stat .value { font-size: 24px; font-weight: 700; font-family: var(--mono); }
.value.ok { color: var(--ok); } .value.warn { color: var(--warn); } .value.danger { color: var(--danger-strong); }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; }
tbody tr:hover { background: var(--bg-elev); }
.pill { padding: 2px 9px; border-radius: 20px; font-size: 11px; font-weight: 600; border: 1px solid var(--border-strong); }
.pill.queued { color: var(--accent); border-color: var(--accent); }
.pill.claimed, .pill.acknowledged { color: var(--warn); border-color: var(--warn); }
.pill.filled { color: var(--ok); border-color: var(--ok); }
.pill.rejected, .pill.expired, .pill.cancelled { color: var(--danger-strong); border-color: var(--danger); }
.side-buy { color: var(--ok); } .side-sell { color: var(--danger-strong); }

/* Forms */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: 12px; color: var(--text-muted); }
.field input, .field select {
  background: var(--bg); border: 1px solid var(--border-strong); color: var(--text);
  border-radius: 7px; padding: 8px 10px; font-size: 13px;
}
.switch-row { display: flex; align-items: center; gap: 10px; padding: 6px 0; }

/* States */
.empty-state, .error-state { padding: 24px; text-align: center; color: var(--text-muted); }
.error-state { color: var(--danger-strong); }
.skeleton { background: linear-gradient(90deg, var(--bg-elev) 25%, var(--bg-elev-2) 50%, var(--bg-elev) 75%);
  background-size: 400% 100%; animation: shimmer 1.4s infinite; border-radius: 6px; height: 14px; }
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }

/* Modal / palette */
.modal-root, .palette-root { position: fixed; inset: 0; z-index: 50; display: flex; align-items: center; justify-content: center; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(3,6,10,0.7); }
.modal, .palette {
  position: relative; background: var(--bg-elev); border: 1px solid var(--border-strong);
  border-radius: var(--radius); padding: 22px; width: 440px; box-shadow: var(--shadow);
}
.modal h2 { margin: 0 0 12px; font-size: 17px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
.palette { padding: 12px; width: 480px; }
.palette input { width: 100%; background: var(--bg); border: 1px solid var(--border-strong); color: var(--text); padding: 11px; border-radius: 8px; font-size: 15px; }
.palette ul { list-style: none; margin: 8px 0 0; padding: 0; }
.palette li { padding: 9px 11px; border-radius: 7px; cursor: pointer; }
.palette li:hover, .palette li.active { background: var(--bg-elev-2); }

/* Toasts */
.toast-root { position: fixed; bottom: 20px; right: 20px; z-index: 60; display: flex; flex-direction: column; gap: 8px; }
.toast { padding: 11px 16px; border-radius: 8px; border-left: 3px solid var(--accent); background: var(--bg-elev-2); box-shadow: var(--shadow); max-width: 360px; font-size: 13px; }
.toast.ok { border-left-color: var(--ok); }
.toast.warn { border-left-color: var(--warn); }
.toast.error { border-left-color: var(--danger); }

canvas { width: 100%; display: block; }

/* Responsive: tablet */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .side-nav { position: absolute; z-index: 40; height: 100%; transform: translateX(-100%); transition: transform 0.2s ease; }
  .app-shell.nav-open .side-nav { transform: translateX(0); }
  .grid-4, .grid-3, .grid-2, .form-grid { grid-template-columns: 1fr; }
  .topbar-center { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}