:root {
  --bg: #f6f9fc;
  --card: #ffffff;
  --text: #0b2742;
  --muted: #5b6b7c;
  --primary: #1565c0;
  --primary-600: #0d47a1;
  --accent: #2e86de;
  --ok: #00c853;
  --warn: #ffab00;
  --err: #d50000;
  --chip: #e8f1fd;
  --shadow: 0 6px 18px rgba(11,39,66,0.12);
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background: var(--bg);
  color: var(--text);
}

/* Login page */
.login-body { background: linear-gradient(180deg, #f6f9fc, #eef5ff); }
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: 100%; max-width: 420px; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; }
.login-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.logo-circle { width: 42px; height: 42px; border-radius: 50%; background: #e5eef9; color: var(--primary-600); display: grid; place-items: center; font-weight: 700; }
.login-form { display: grid; gap: 12px; }
.form-group { display: grid; gap: 6px; }
.form-group label { font-size: 13px; color: var(--muted); }
.form-group input { padding: 10px 12px; border-radius: 10px; border: 1px solid #d6e4f5; background: #f6fbff; font-size: 14px; }
.form-group input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(21,101,192,0.12); }
.form-actions { margin-top: 6px; display: flex; justify-content: flex-end; }
.login-hint { margin: 8px 0 0; font-size: 12px; color: var(--muted); text-align: center; }

/* Topbar */
.topbar {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card);
  box-shadow: var(--shadow);
  padding: 0 20px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo { width: 40px; height: 40px; }
.titles .system-name { font-weight: 600; font-size: 18px; }
.titles .subtitle { font-size: 12px; color: var(--muted); }
.topbar-right { display: flex; align-items: center; gap: 16px; }
.badge { padding: 6px 10px; border-radius: 999px; font-size: 12px; }
.badge.online { background: #e3f6ed; color: var(--ok); border: 1px solid #b6ead0; }
.badge.offline { background: #fdeae9; color: var(--err); border: 1px solid #f6c4c1; }
.profile { display: flex; align-items: center; gap: 10px; }
.avatar { width: 34px; height: 34px; border-radius: 50%; background: #e5eef9; color: var(--primary-600); display: grid; place-items: center; font-weight: 600; }
.user .name { font-size: 13px; font-weight: 600; }
.user .role { font-size: 11px; color: var(--muted); }

/* Layout */
.layout { display: grid; grid-template-columns: 1fr 360px; gap: 20px; padding: 20px; }
.center { display: grid; gap: 20px; }
.right-panel { }

/* Cards */
.record-card, .table-card, .panel-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* Record */
.record-card { padding: 20px; }
.record-header { display: flex; justify-content: space-between; align-items: center; }
.record-header h2 { margin: 0; font-size: 18px; }
.chip { background: var(--chip); color: var(--primary-600); padding: 6px 10px; border-radius: 999px; font-weight: 600; font-size: 12px; border: 1px solid #cfe2fb; }

.waveform {
  margin-top: 16px;
  height: 120px;
  display: grid;
  grid-template-columns: repeat(16, 1fr);
  align-items: end;
  gap: 6px;
  padding: 12px 10px;
  background: linear-gradient(180deg,#f8fbff, #eef5ff);
  border-radius: 12px;
}
.waveform .bar {
  height: 20px;
  background: linear-gradient(180deg, var(--accent), var(--primary));
  border-radius: 8px 8px 0 0;
  box-shadow: 0 4px 10px rgba(21,101,192,0.25);
  animation: pulse 900ms ease-in-out infinite;
  transform-origin: bottom center;
}
.waveform .bar:nth-child(odd) { animation-duration: 1100ms; }
.waveform .bar:nth-child(3n) { animation-duration: 700ms; }
.waveform.active .bar { opacity: 1; }
.waveform.paused .bar { opacity: 0.35; animation-play-state: paused; }
@keyframes pulse {
  0% { transform: scaleY(0.25); }
  50% { transform: scaleY(1.0); }
  100% { transform: scaleY(0.25); }
}

.controls { display: flex; gap: 10px; margin-top: 16px; }
.btn { appearance: none; border: 1px solid #d6e4f5; background: #f6fbff; color: var(--text); padding: 10px 14px; border-radius: 10px; font-weight: 600; cursor: pointer; box-shadow: 0 2px 6px rgba(11,39,66,0.08); }
.btn:hover { background: #eef6ff; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-600); }
.btn.danger { background: #e53935; border-color: #e53935; color: #fff; }
.btn.danger:hover { background: #c62828; }

.stt-output { margin-top: 12px; padding: 14px; background: #f9fbfe; border: 1px solid #dbe7fb; border-radius: 10px; min-height: 64px; line-height: 1.6; font-size: 16px; }
.stt-output .placeholder { color: var(--muted); }

/* Table */
.table-card { padding: 16px; }
.table-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.table-header h3 { margin: 0; font-size: 16px; }
.log-table { width: 100%; border-collapse: collapse; }
.log-table th, .log-table td { text-align: left; padding: 12px; border-bottom: 1px solid #e6eef8; font-size: 14px; }
.log-table thead th { background: #f3f7fc; font-weight: 600; }
.tag { display: inline-block; font-size: 12px; font-weight: 600; padding: 6px 10px; border-radius: 999px; }
.tag.normal { background: #e9f6ff; color: var(--primary-600); border: 1px solid #cde7ff; }
.tag.warning { background: #fff5e5; color: #d18f00; border: 1px solid #ffe2a8; }
.tag.error { background: #ffebee; color: #c62828; border: 1px solid #ffcdd2; }

/* Backoffice */
.stats-card { padding: 16px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat { background: #f9fbfe; border: 1px solid #dbe7fb; border-radius: 12px; padding: 12px; }
.stat-label { font-size: 12px; color: var(--muted); }
.stat-value { font-size: 22px; font-weight: 700; }
.stat-value.warn { color: var(--warn); }
.stat-value.err { color: var(--err); }
.table-actions { display: flex; gap: 10px; align-items: center; }
.select, .search { padding: 10px 12px; border-radius: 10px; border: 1px solid #d6e4f5; background: #f6fbff; font-size: 14px; }
.search { min-width: 220px; }

/* Right panel */
.panel-card { padding: 14px; }
.panel-header h3 { margin: 0; font-size: 16px; }
.recent-list { display: grid; gap: 10px; margin-top: 12px; max-height: 520px; overflow: auto; }
.recent-item { display: grid; grid-template-columns: 1fr auto; gap: 6px; padding: 10px; border: 1px solid #e6eef8; border-radius: 10px; background: #fbfdff; }
.recent-item .meta { font-size: 12px; color: var(--muted); }
.recent-item .summary { font-size: 14px; }

/* Desktop-first */
@media (max-width: 1100px) {
  .layout { grid-template-columns: 1fr; }
  .right-panel { order: -1; }
  .stats { grid-template-columns: 1fr; }
}