:root {
  --primary: #0d9488;
  --primary-light: #14b8a6;
  --primary-dark: #0f766e;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  --bg: #f5f7fa;
  --card-bg: #fff;
  --text: #0f172a;
  --text-secondary: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
  --radius-sm: 6px;
  --shadow: 0 2px 10px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 32px rgba(0,0,0,0.12);
  --font: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.header {
  background: linear-gradient(135deg, #0f172a 0%, #0f766e 55%, #0d9488 100%);
  padding: 16px 28px;
  display: flex;
  align-items: center;
  gap: 18px;
  color: #fff;
  box-shadow: 0 2px 16px rgba(13,148,136,0.25);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header h1 { font-size: 18px; font-weight: 700; letter-spacing: 0.5px; }
.header .nav {
  display: flex;
  gap: 4px;
  margin-left: 24px;
}
.header .nav a {
  color: rgba(255,255,255,0.78);
  padding: 6px 14px;
  border-radius: 18px;
  font-size: 13px;
  transition: .2s;
}
.header .nav a:hover, .header .nav a.active {
  background: rgba(255,255,255,0.18);
  color: #fff;
  text-decoration: none;
}
.header .right { margin-left: auto; display: flex; align-items: center; gap: 12px; font-size: 13px; }
.header .right .user { opacity: .9; }
.role-badge {
  display: inline-block; font-size: 11px; font-weight: 600;
  padding: 2px 10px; border-radius: 12px; margin-left: 6px;
}
.role-badge.super_admin { background: #ef4444; color: #fff; }
.role-badge.ops_admin   { background: #7c3aed; color: #fff; }
.role-badge.admin       { background: rgba(255,255,255,0.25); color: #fff; }
.btn-logout {
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff; padding: 5px 14px; border-radius: 18px;
  cursor: pointer; font-size: 12px; transition: .2s;
}
.btn-logout:hover { background: rgba(255,255,255,0.3); }

/* Layout */
.container { max-width: 1400px; margin: 24px auto; padding: 0 20px; }
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
  margin-bottom: 18px;
}
.card h2 { font-size: 16px; font-weight: 700; margin-bottom: 14px; }
.card h3 { font-size: 14px; font-weight: 700; color: var(--text-secondary); margin-bottom: 10px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 16px; border-radius: var(--radius-sm);
  font-size: 13px; font-family: var(--font); font-weight: 500;
  border: 1px solid var(--border); background: #fff; color: var(--text);
  cursor: pointer; transition: .15s;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); color: #fff; border-color: var(--primary-dark); }
.btn-danger  { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover { background: #dc2626; color: #fff; border-color: #dc2626; }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* Forms */
.form-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.form-group { display: flex; flex-direction: column; gap: 6px; flex: 1; min-width: 180px; }
.form-group label { font-size: 12px; font-weight: 600; color: var(--text-secondary); }
.form-input, .form-select {
  padding: 8px 12px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 13px; font-family: var(--font);
  background: #fff; color: var(--text);
  transition: .15s;
}
.form-input:focus, .form-select:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(13,148,136,0.12);
}
.input-wrap { position: relative; display: flex; align-items: center; }
.input-wrap .form-input { flex: 1; }
.eye-btn {
  position: absolute; right: 8px;
  background: none; border: none; cursor: pointer;
  font-size: 15px; color: var(--text-secondary); padding: 4px; line-height: 1;
  flex-shrink: 0;
}
.eye-btn:hover { color: var(--primary); }

/* Tables */
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th, .table td {
  text-align: left; padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.table th {
  background: #f8fafc; font-weight: 600; color: var(--text-secondary);
  font-size: 12px; letter-spacing: 0.3px;
}
.table tr:hover td { background: #f8fafc; }
.table .actions { display: flex; gap: 6px; }

/* Badges */
.badge {
  display: inline-block; font-size: 11px; font-weight: 600;
  padding: 2px 8px; border-radius: 10px; white-space: nowrap;
}
.badge-gray { background: #e2e8f0; color: #475569; }
.badge-success { background: #d1fae5; color: #047857; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger  { background: #fee2e2; color: #b91c1c; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-primary { background: #ccfbf1; color: #0f766e; }

/* Tabs */
.tab-bar { display: flex; gap: 0; border-bottom: 2px solid var(--border); margin-bottom: 18px; }
.tab-btn {
  padding: 10px 20px; background: none; border: none;
  font-size: 14px; font-weight: 600; color: var(--text-secondary);
  cursor: pointer; border-bottom: 2px solid transparent;
  margin-bottom: -2px; font-family: var(--font);
}
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Modal */
.modal-mask {
  display: none; position: fixed; inset: 0;
  background: rgba(15,23,42,0.5); z-index: 999;
  align-items: center; justify-content: center;
}
.modal-mask.show { display: flex; }
.modal {
  background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  max-width: 640px; width: 92vw;
  max-height: 90vh; overflow: auto;
}
.modal-header {
  padding: 16px 22px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-header h3 { font-size: 16px; font-weight: 700; }
.modal-close {
  background: none; border: none; font-size: 22px; cursor: pointer;
  color: var(--text-secondary);
}
.modal-body { padding: 20px 22px; }
.modal-footer {
  padding: 14px 22px; border-top: 1px solid var(--border);
  display: flex; gap: 10px; justify-content: flex-end;
}

/* Toast */
.toast-container {
  position: fixed; top: 20px; right: 20px; z-index: 2000;
  display: flex; flex-direction: column; gap: 8px;
}
.toast {
  padding: 10px 18px; border-radius: 8px; color: #fff;
  font-size: 13px; box-shadow: var(--shadow-lg);
  animation: slideIn .2s ease;
}
.toast.info { background: var(--info); }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); }
@keyframes slideIn {
  from { transform: translateX(40px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Subsystem grid */
.subsys-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.subsys-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 18px;
  transition: .2s; cursor: pointer;
}
.subsys-card:hover {
  border-color: var(--primary);
  box-shadow: 0 6px 20px rgba(13,148,136,0.12);
  transform: translateY(-2px);
}
.subsys-card .code {
  display: inline-block; font-weight: 700; color: var(--primary);
  font-size: 15px; margin-bottom: 4px;
}
.subsys-card .name { font-size: 13px; color: var(--text-secondary); margin-bottom: 10px; }
.subsys-card .envs { display: flex; gap: 6px; flex-wrap: wrap; }

.muted { color: var(--text-secondary); font-size: 12px; }
.flex { display: flex; }
.gap-8 { gap: 8px; }
.mt-12 { margin-top: 12px; }
.mb-12 { margin-bottom: 12px; }
.text-center { text-align: center; }
.hidden { display: none !important; }

.env-test { background: #fef3c7; color: #92400e; }
.env-prod { background: #fee2e2; color: #b91c1c; }