:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --primary: #5b4db1;
  --primary-dark: #43388e;
  --secondary: #e9e5f6;
  --text: #1e2430;
  --muted: #6b7280;
  --border: #dde3ee;
  --danger: #c0392b;
  --success: #198754;
  --shadow: 0 10px 30px rgba(30, 36, 48, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 18px 32px;
  background: #ffffff;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}
.brand-block {
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand-logo {
  height: 28px;
  width: auto;
}
.topbar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

.left-logo {
  display: flex;
  align-items: center;
  min-width: 180px;
}

.header-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  width: 100%;
  pointer-events: none;
}

.header-center h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
}

.subtitle {
  margin: 4px 0 0 0;
  font-size: 14px;
  color: #6b7280;
}

.nav {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 180px;
  justify-content: flex-end;
}


.nav { display: flex; gap: 14px; flex-wrap: wrap; }
.nav a { color: var(--text); text-decoration: none; font-weight: 700; }

.container { padding: 24px 32px 40px; }
.card {
  background: var(--surface);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 24px;
}
.small-card { max-width: 480px; margin: 50px auto; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--surface);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 20px;
}
.stat-card span { display: block; color: var(--muted); margin-bottom: 8px; }
.stat-card strong { font-size: 32px; }

.actions-row, .toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.actions-left {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.toolbar-stack {
  align-items: flex-start;
}
.filters-form {
  display: flex;
  gap: 12px;
  align-items: end;
  flex-wrap: wrap;
}
.filter-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.no-margin { margin: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 10px;
  border: none;
  text-decoration: none;
  cursor: pointer;
  font-weight: 700;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--secondary); color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-small { padding: 8px 12px; font-size: 13px; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.one-column { grid-template-columns: 1fr; }
label { display: flex; flex-direction: column; gap: 8px; font-weight: 700; }
input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  font-size: 14px;
  background: #fff;
}
textarea { resize: vertical; }
.full-width { grid-column: 1 / -1; }
.form-actions { display: flex; gap: 12px; }

.table-wrapper { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 1280px;
}
th, td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}
th {
  background: #ece4f4;
  font-size: 14px;
}
.empty { text-align: center; color: var(--muted); padding: 24px; }
.badge {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}
.badge.outgoing { background: #efe9ff; color: #5b4db1; }
.badge.incoming { background: #e5f6ef; color: #198754; }
.actions-cell { display: flex; gap: 8px; flex-wrap: wrap; }
.actions-cell form { margin: 0; }

.alert {
  padding: 14px 16px;
  border-radius: 12px;
  margin-bottom: 18px;
  font-weight: 700;
}
.alert-danger { background: #fde8e7; color: #8f2218; }
.alert-success { background: #e6f6ed; color: #145c36; }
.hint { color: var(--muted); }

@media (max-width: 900px) {
  .container, .topbar { padding-left: 16px; padding-right: 16px; }
  .stats-grid, .form-grid { grid-template-columns: 1fr; }
  .brand-block, .topbar { flex-direction: column; align-items: flex-start; }
  .filters-form { width: 100%; }
}