:root {
  color-scheme: light;
  --bg: #f4f6fb;
  --bg-elevated: #ffffff;
  --bg-soft: #eef2f8;
  --text: #111827;
  --text-muted: #64748b;
  --border: #dbe2ec;
  --primary: #0f766e;
  --primary-strong: #0b5f58;
  --primary-soft: #ccfbf1;
  --danger: #b91c1c;
  --danger-soft: #fee2e2;
  --warning: #b45309;
  --warning-soft: #fef3c7;
  --success: #047857;
  --success-soft: #d1fae5;
  --shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
  --radius: 14px;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

html.dark {
  color-scheme: dark;
  --bg: #070b14;
  --bg-elevated: #0e1626;
  --bg-soft: #121d31;
  --text: #e5eefb;
  --text-muted: #93a4bd;
  --border: #1e2d45;
  --primary: #2dd4bf;
  --primary-strong: #14b8a6;
  --primary-soft: rgba(45, 212, 191, 0.13);
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.13);
  --warning: #fbbf24;
  --warning-soft: rgba(251, 191, 36, 0.12);
  --success: #34d399;
  --success-soft: rgba(52, 211, 153, 0.12);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  /* Fontstack bewust niet overschrijven: het origineel gebruikt exact de
     Tailwind-preflight-stack (ui-sans-serif, system-ui, ...). */
  line-height: 1.5;
}
@layer base {
  /* Alleen classless links erven de accentkleur; Tailwind-utilities
     (text-slate-900, text-slate-700, ...) moeten altijd winnen. */
  a { color: var(--primary); text-decoration: none; }
}
button { cursor: pointer; }

/* Login */
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.18), transparent 35%),
    radial-gradient(circle at bottom right, rgba(14, 165, 233, 0.12), transparent 40%),
    var(--bg);
}
.login-card {
  width: min(440px, 100%);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 34px;
  box-shadow: var(--shadow);
}
.login-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 26px; }
.brand-mark {
  width: 46px; height: 46px; border-radius: 14px;
  display: grid; place-items: center;
  background: var(--primary-soft); color: var(--primary);
  font-weight: 800; font-size: 18px;
}
.login-brand h1 { font-size: 20px; margin: 0; letter-spacing: -0.02em; }
.login-brand p { margin: 2px 0 0; color: var(--text-muted); font-size: 12px; }
.login-card h2 { margin: 0 0 8px; font-size: 24px; letter-spacing: -0.03em; }
.login-card .subtitle { margin: 0 0 24px; color: var(--text-muted); font-size: 14px; }
.login-error {
  background: var(--danger-soft); color: var(--danger);
  border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent);
  border-radius: 10px; padding: 12px 14px; font-size: 13px; margin-bottom: 18px;
}
.login-hint { margin-top: 18px; color: var(--text-muted); font-size: 12px; text-align: center; }

/* Layout */
.app-shell { min-height: 100vh; display: grid; grid-template-columns: 250px 1fr; }
.sidebar {
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  padding: 22px 16px;
  display: flex; flex-direction: column; gap: 26px;
  position: sticky; top: 0; height: 100vh;
}
.sidebar-brand { display: flex; align-items: center; gap: 12px; padding: 0 8px; }
.sidebar-brand h1 { font-size: 16px; margin: 0; letter-spacing: -0.02em; }
.sidebar-brand span { color: var(--text-muted); font-size: 10px; text-transform: uppercase; letter-spacing: 0.16em; }
.nav { display: grid; gap: 6px; }
.nav-link {
  display: flex; align-items: center; gap: 11px;
  padding: 10px 12px; border-radius: 10px;
  color: var(--text-muted); font-size: 13px; font-weight: 600;
  border: 1px solid transparent;
}
.nav-link:hover { background: var(--bg-soft); color: var(--text); }
.nav-link.active { background: var(--primary-soft); color: var(--primary); border-color: color-mix(in srgb, var(--primary) 20%, transparent); }
.nav-icon { width: 18px; text-align: center; font-size: 15px; }
.sidebar-footer { margin-top: auto; border-top: 1px solid var(--border); padding-top: 16px; }
.user-card { display: flex; align-items: center; gap: 10px; padding: 8px; border-radius: 10px; background: var(--bg-soft); }
.avatar {
  width: 36px; height: 36px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--primary); color: #fff; font-weight: 800; font-size: 13px;
}
.user-meta { min-width: 0; }
.user-meta strong { display: block; font-size: 12px; overflow: hidden; text-overflow: ellipsis; }
.user-meta span { display: block; color: var(--text-muted); font-size: 10px; text-transform: uppercase; letter-spacing: 0.12em; }
.main { min-width: 0; display: flex; flex-direction: column; }
.topbar {
  height: 68px; border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
  backdrop-filter: blur(12px);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 30px; position: sticky; top: 0; z-index: 20;
}
.topbar h2 { margin: 0; font-size: 16px; letter-spacing: -0.02em; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.page { padding: 28px 30px 50px; max-width: 1500px; width: 100%; margin: 0 auto; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.page-head h1 { margin: 0 0 4px; font-size: 26px; letter-spacing: -0.04em; }
.page-head p { margin: 0; color: var(--text-muted); font-size: 13px; }

/* Components */
.card {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.card-pad { padding: 20px; }
.grid-4 { display: grid; gap: 16px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-3 { display: grid; gap: 16px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { display: grid; gap: 16px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 1100px) { .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; }
  .sidebar .nav { display: flex; flex-wrap: wrap; }
  .sidebar-footer { margin-top: 0; border: 0; padding: 0; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .page { padding: 18px 16px 40px; }
  .topbar { padding: 0 16px; }
  .grid-4 { grid-template-columns: 1fr; }
}
.stat { padding: 18px; }
.metric-card { background: var(--bg-elevated); border: 1px solid var(--border); }
.stat-label { color: var(--text-muted); font-size: 10px; text-transform: uppercase; letter-spacing: 0.14em; font-weight: 700; }
.stat-value { font-size: 30px; font-weight: 800; letter-spacing: -0.04em; margin: 6px 0 2px; }
.stat-detail { color: var(--text-muted); font-size: 12px; }
.muted { color: var(--text-muted); }
.mono { font-family: var(--mono); font-size: 12px; }
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 8px; border-radius: 999px; font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.badge.ok { background: var(--success-soft); color: var(--success); }
.badge.warn { background: var(--warning-soft); color: var(--warning); }
.badge.danger { background: var(--danger-soft); color: var(--danger); }
.badge.neutral { background: var(--bg-soft); color: var(--text-muted); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid var(--border); background: var(--bg-elevated); color: var(--text);
  padding: 9px 14px; border-radius: 10px; font-size: 12px; font-weight: 700;
  transition: 0.15s ease;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-strong); color: #fff; }
.btn.danger { background: var(--danger-soft); border-color: transparent; color: var(--danger); }
.btn.ghost { background: transparent; }
.btn.small { padding: 6px 9px; font-size: 11px; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.icon-btn { width: 36px; height: 36px; padding: 0; }
.field { display: grid; gap: 6px; margin-bottom: 14px; }
.field label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); }
.input, .select, .textarea {
  width: 100%; background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px; padding: 11px 12px; font-size: 13px;
  outline: none; transition: 0.15s ease;
}
.input:focus, .select:focus, .textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.textarea { min-height: 90px; resize: vertical; font-family: var(--mono); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }
.form-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; text-align: left; }
th {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--text-muted); padding: 12px 16px; border-bottom: 1px solid var(--border);
}
td { padding: 13px 16px; border-bottom: 1px solid var(--border); font-size: 13px; vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
tr:hover td { background: var(--bg-soft); }
.table-actions { display: flex; gap: 6px; justify-content: flex-end; }
.empty { padding: 34px; text-align: center; color: var(--text-muted); font-size: 13px; }
.banner {
  border: 1px solid var(--border); border-radius: 12px; padding: 13px 16px;
  font-size: 13px; margin-bottom: 18px; background: var(--bg-elevated);
}
.banner.warn { background: var(--warning-soft); border-color: transparent; color: var(--warning); }
.banner.info { background: var(--primary-soft); border-color: transparent; color: var(--primary); }
.banner.danger { background: var(--danger-soft); border-color: transparent; color: var(--danger); }
.section-title { font-size: 13px; font-weight: 800; letter-spacing: -0.01em; margin: 0 0 14px; }
.divider { height: 1px; background: var(--border); margin: 20px 0; }
.kv { display: grid; grid-template-columns: 170px 1fr; gap: 10px; font-size: 13px; }
.kv dt { color: var(--text-muted); }
.kv dd { margin: 0; }
.code {
  background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px; font-family: var(--mono); font-size: 12px; word-break: break-all;
  white-space: pre-wrap;
}
.list { display: grid; gap: 1px; }
.list-item { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 12px; }
.list-item:last-child { border-bottom: 0; }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(2, 6, 23, 0.62);
  display: grid; place-items: center; padding: 20px; z-index: 100;
  backdrop-filter: blur(4px);
}
.modal {
  width: min(560px, 100%); max-height: 90vh; overflow-y: auto;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: 18px; padding: 24px; box-shadow: var(--shadow);
}
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.modal-header h3 { margin: 0; font-size: 18px; letter-spacing: -0.03em; }

/* Toast */
.toast-root { position: fixed; right: 20px; bottom: 20px; display: grid; gap: 10px; z-index: 200; }
.toast {
  min-width: 260px; max-width: 420px; padding: 12px 15px; border-radius: 12px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  box-shadow: var(--shadow); font-size: 13px; animation: toast-in 0.2s ease;
}
.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.info { border-left: 4px solid var(--primary); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 700px) {
  .sidebar { display: none; }
  .topbar { height: 58px; }
  .topbar h2 { font-size: 14px; }
}