:root {
  --bg: #0a0d12;
  --surface: #111620;
  --border: #1e2736;
  --accent: #00e5ff;
  --accent2: #0091a8;
  --text: #c8d6e5;
  --text-muted: #4a5568;
  --green: #00e676;
  --red: #ff5252;
  --yellow: #ffd740;
  --font-mono: 'Space Mono', monospace;
  --font-body: 'Inter', sans-serif;
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.875rem;
  min-height: 100vh;
}

/* Grid background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    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: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.container-fluid, .navbar { position: relative; z-index: 1; }

/* NAVBAR */
.navbar {
  background: rgba(17,22,32,0.95);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.navbar-brand {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent) !important;
  letter-spacing: 0.05em;
}

.badge-rd {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* PANELS */
.card-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.card-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.panel-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

/* FORM INPUTS */
.form-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.sim-input {
  background: var(--bg) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.sim-input:focus {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 2px rgba(0,229,255,0.12) !important;
  outline: none;
}

.sim-input option { background: var(--surface); }

/* BUTTONS */
.btn-primary-sim {
  background: var(--accent);
  color: #000;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: 4px;
  padding: 0.55rem 1rem;
  transition: all 0.2s;
  letter-spacing: 0.03em;
}

.btn-primary-sim:hover { background: #33eaff; color: #000; transform: translateY(-1px); }
.btn-primary-sim:active { transform: translateY(0); }

.btn-cancel {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  border-radius: 4px;
  padding: 0.55rem 1rem;
  transition: all 0.2s;
}

.btn-cancel:hover { border-color: var(--text-muted); color: var(--text); }

.btn-danger-sim {
  background: var(--red);
  border: none;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  border-radius: 4px;
  padding: 0.5rem 1rem;
}

/* STATS */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.stat-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.stat-num {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat-num.accent-green { color: var(--green); }
.stat-num.accent-red   { color: var(--red); }

.stat-lbl {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* SEARCH */
.search-box {
  max-width: 220px;
  padding: 0.4rem 0.75rem;
  height: auto;
}

/* TABLE */
.table-wrapper {
  overflow-x: auto;
  max-height: 62vh;
  overflow-y: auto;
}

.sim-table {
  margin-bottom: 0;
  border-collapse: separate;
  border-spacing: 0;
}

.sim-table thead th {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  border-top: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.75rem 1rem;
  position: sticky;
  top: 0;
  z-index: 2;
  white-space: nowrap;
}

.sim-table tbody tr {
  border-bottom: 1px solid rgba(30,39,54,0.5);
  transition: background 0.15s;
}

.sim-table tbody tr:hover { background: rgba(0,229,255,0.04); }

.sim-table td {
  padding: 0.7rem 1rem;
  vertical-align: middle;
  border: none;
  color: var(--text);
  font-size: 0.82rem;
}

.sim-table td:first-child {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.72rem;
}

.sim-table td:nth-child(2),
.sim-table td:nth-child(3) {
  font-family: var(--font-mono);
  color: var(--accent);
}

/* BADGES */
.badge-estado {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  padding: 0.3em 0.6em;
  border-radius: 3px;
  text-transform: uppercase;
}

.badge-activa    { background: rgba(0,230,118,0.15); color: var(--green); border: 1px solid rgba(0,230,118,0.3); }
.badge-inactiva  { background: rgba(255,82,82,0.12);  color: var(--red);   border: 1px solid rgba(255,82,82,0.3); }
.badge-suspendida{ background: rgba(255,215,64,0.12); color: var(--yellow);border: 1px solid rgba(255,215,64,0.3); }

/* ACTION BUTTONS */
.btn-action {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.25rem 0.55rem;
  border-radius: 3px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-action:hover { border-color: var(--accent); color: var(--accent); }
.btn-action.del:hover { border-color: var(--red); color: var(--red); }

/* FORM MESSAGE */
.msg-success { color: var(--green); font-family: var(--font-mono); font-size: 0.78rem; }
.msg-error   { color: var(--red);   font-family: var(--font-mono); font-size: 0.78rem; }

/* MODAL */
.modal-dark {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
}

.modal-dark .modal-title { font-family: var(--font-mono); font-size: 0.85rem; }
.modal-dark p { font-size: 0.875rem; }
.modal-dark .text-muted { color: var(--text-muted) !important; }

/* LOADING */
.loading-text { color: var(--text-muted); font-family: var(--font-mono); font-size: 0.8rem; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent2); }