:root {
  --bg: #0f172a;
  --panel: #111827;
  --muted: #94a3b8;
  --text: #f8fafc;
  --accent: #38bdf8;
  --danger: #f97316;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(circle at top, #1e293b, #0f172a 60%);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: rgba(15, 23, 42, 0.9);
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.topbar .brand {
  font-weight: 700;
  letter-spacing: 0.5px;
}

.topbar nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 16px;
}

.topbar nav a:hover { color: var(--accent); }

.container {
  padding: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.section {
  background: rgba(17, 24, 39, 0.85);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}

.table-wrap {
  overflow-x: auto;
  margin-top: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
  font-size: 14px;
}

th {
  color: var(--muted);
  font-weight: 600;
}

.toolbar {
  display: flex;
  gap: 12px;
  margin: 12px 0;
}

.btn, button {
  background: var(--accent);
  color: #0f172a;
  border: none;
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  text-decoration: none;
}

.btn.ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

button.danger, .btn.danger {
  background: var(--danger);
  color: #0f172a;
}

.form {
  display: grid;
  gap: 16px;
}

.field label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
}

.field input[type="text"],
.field input[type="password"],
.field input[type="datetime-local"],
.field input[type="number"] {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: #0b1220;
  color: var(--text);
}

.field select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: #0b1220;
  color: var(--text);
}

.checkboxes label {
  margin-right: 16px;
}

.summary {
  padding: 12px;
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.6);
  margin-bottom: 16px;
}

.alert {
  background: rgba(249, 115, 22, 0.15);
  border: 1px solid rgba(249, 115, 22, 0.5);
  color: #fed7aa;
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 16px;
}

.login {
  max-width: 420px;
  margin: 0 auto;
}

.log-box {
  background: #020617;
  padding: 12px;
  border-radius: 8px;
  height: 320px;
  overflow-y: auto;
  font-size: 12px;
  line-height: 1.5;
  border: 1px solid rgba(148, 163, 184, 0.2);
}

hr {
  border: none;
  border-top: 1px solid rgba(148, 163, 184, 0.2);
  margin: 16px 0;
}

@media (max-width: 720px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  th, td {
    font-size: 12px;
  }
}