:root {
  --bg: #0a0c10;
  --bg-elevated: #0d1015;
  --panel: #12151d;
  --panel-alt: #171b25;
  --border: #242938;
  --text: #e8ebf3;
  --muted: #9aa3b8;
  --faint: #5f6679;
  --accent: #33d6c0;
  --danger: #f1495f;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 14px; }
button, input { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }

.app { display: flex; min-height: 100vh; }
.rail {
  width: 220px; flex: none; background: var(--bg-elevated); border-right: 1px solid var(--border);
  padding: 16px 12px; display: flex; flex-direction: column; gap: 8px;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 8px 12px; }
.brand-mark {
  width: 26px; height: 26px; border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), #1a8f80);
}
.brand-name { font-weight: 700; letter-spacing: -0.2px; }
.brand-name span { display: block; font-size: 10px; font-weight: 600; letter-spacing: 0.08em; color: var(--faint); text-transform: uppercase; }
.nav-label { font-size: 11px; color: var(--faint); text-transform: uppercase; letter-spacing: 0.06em; padding: 0 8px; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav a { padding: 8px 10px; border-radius: 6px; color: var(--muted); }
.nav a.active, .nav a:hover { background: var(--panel-alt); color: var(--text); }
.main { flex: 1; padding: 28px 32px; min-width: 0; }
h1 { margin: 0 0 6px; font-size: 22px; letter-spacing: -0.3px; }
.sub { margin: 0 0 18px; color: var(--muted); }

.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px;
  background: radial-gradient(ellipse at 30% 15%, rgba(51, 214, 192, 0.08) 0%, var(--bg) 55%);
}
.login-card {
  width: min(100%, 400px); background: var(--panel); border: 1px solid var(--border);
  border-radius: 12px; padding: 22px;
}
.field { margin-bottom: 10px; }
.field label { display: block; font-size: 12px; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
.field input {
  width: 100%; height: 36px; background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: 6px; padding: 0 11px;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 36px; padding: 7px 14px;
  border-radius: 6px; border: 1px solid var(--accent); background: var(--accent); color: #04211d;
  font-weight: 700; cursor: pointer; width: 100%;
}
.alert { padding: 10px 12px; border-radius: 8px; margin-bottom: 12px; background: rgba(241, 73, 95, 0.13); color: #e0aab2; }
table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 13px; }
th { color: var(--faint); font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; }
.empty { color: var(--muted); padding: 16px; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; }