:root {
  --bg: #f5f8ff;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #4b5563;
  --border: #dbe3f3;
  --primary: #1f5fff;
  --primary-2: #3b82f6;
  --accent: #0ea5e9;
  --danger: #dc2626;
  --shadow: 0 12px 36px rgba(31, 95, 255, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: radial-gradient(circle at top left, #eef5ff 0, #f7f9ff 45%, #f8fbff 100%);
  color: var(--text);
}

.page {
  min-height: 100vh;
  padding: 28px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.login-wrap {
  min-height: calc(100vh - 56px);
  display: grid;
  place-items: center;
}

.login-card {
  width: 100%;
  max-width: 430px;
  padding: 30px;
}

.logo {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  margin-bottom: 16px;
}

h1 { margin: 0 0 8px; font-size: 30px; font-weight: 800; letter-spacing: -0.02em; }
h2 { margin: 0; font-size: 22px; font-weight: 700; }
p.sub { margin: 0 0 24px; color: var(--muted); font-size: 14px; }

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 8px; }

input, select, textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 14px;
  background: #fff;
  color: var(--text);
}

textarea { min-height: 160px; resize: vertical; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(31, 95, 255, 0.15);
}

.row { display: grid; gap: 12px; margin-bottom: 16px; }
.grid-2 { grid-template-columns: 1fr 1fr; }

.btn {
  border: 0;
  border-radius: 12px;
  padding: 11px 14px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary { color: white; background: linear-gradient(135deg, var(--primary), var(--primary-2)); }
.btn-soft { color: var(--primary); background: #eaf0ff; }
.btn-danger { color: white; background: var(--danger); }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 16px;
}

.sidebar { padding: 18px; }
.main { padding: 20px; }

.list {
  display: grid;
  gap: 8px;
  max-height: 65vh;
  overflow: auto;
}

.item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
  cursor: pointer;
  background: #fff;
}
.item.active { border-color: var(--primary); background: #eef4ff; }

.badge {
  display: inline-block;
  margin-left: 8px;
  padding: 4px 8px;
  border-radius: 999px;
  background: #e8f1ff;
  color: #1f4fd6;
  font-size: 11px;
  font-weight: 600;
}

.msg { margin-top: 10px; font-size: 13px; }
.msg.err { color: var(--danger); }
.msg.ok { color: #047857; }

@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
}