:root {
  --bg: #ffffff;
  --bg-sidebar: #fafafa;
  --bg-hover: #f4f4f5;
  --bg-active: #eeeff1;
  --bg-input: #ffffff;
  --border: #e6e7ea;
  --border-strong: #d4d6db;
  --text: #17181c;
  --text-2: #5b5f69;
  --text-3: #8b8f99;
  --accent: #3b5bdb;
  --accent-text: #ffffff;
  --danger: #d6372c;
  --danger-bg: #fdecea;
  --ok: #1a7f4b;
  --ok-bg: #e8f6ee;
  --warn: #a15c07;
  --warn-bg: #fdf3e1;
  --shadow: 0 1px 2px rgba(16,17,20,.04), 0 8px 28px rgba(16,17,20,.12);
  --radius: 8px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
[data-theme="dark"] {
  --bg: #141517;
  --bg-sidebar: #101113;
  --bg-hover: #1c1d20;
  --bg-active: #232427;
  --bg-input: #17181b;
  --border: #26282c;
  --border-strong: #34363b;
  --text: #ececee;
  --text-2: #a0a3ab;
  --text-3: #71747d;
  --accent: #6d8bff;
  --accent-text: #0b0c0e;
  --danger: #ff6b60;
  --danger-bg: #2e1816;
  --ok: #4cc58a;
  --ok-bg: #14261d;
  --warn: #e6a94c;
  --warn-bg: #2b2112;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 12px 32px rgba(0,0,0,.55);
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; font-family: var(--font); font-size: 14px; line-height: 1.45;
  color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased;
  transition: background .15s, color .15s;
}
button, input, select { font: inherit; color: inherit; }
.shell { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: 232px; flex-shrink: 0; background: var(--bg-sidebar);
  border-right: 1px solid var(--border); display: flex; flex-direction: column;
  padding: 12px 8px; position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; align-items: center; gap: 8px; padding: 6px 8px 14px; }
.brand-mark {
  width: 24px; height: 24px; border-radius: 6px; background: var(--text); color: var(--bg);
  display: grid; place-items: center;
}
.brand-name { font-weight: 600; letter-spacing: -.01em; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav-label { font-size: 11px; color: var(--text-3); padding: 8px 8px 4px; font-weight: 500; }
.nav-item {
  display: flex; align-items: center; gap: 10px; padding: 6px 8px; border-radius: 6px;
  color: var(--text-2); text-decoration: none; font-weight: 500;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text); }
.nav-item.active { background: var(--bg-active); color: var(--text); }
.sidebar-foot { margin-top: auto; }
.theme-toggle {
  width: 100%; display: flex; align-items: center; gap: 10px; padding: 7px 8px;
  border: 0; background: transparent; border-radius: 6px; cursor: pointer; color: var(--text-2);
}
.theme-toggle:hover { background: var(--bg-hover); color: var(--text); }
.theme-label { flex: 1; text-align: left; font-weight: 500; }
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }
.switch { width: 28px; height: 16px; border-radius: 99px; background: var(--border-strong); position: relative; transition: background .15s; }
.knob { position: absolute; top: 2px; left: 2px; width: 12px; height: 12px; border-radius: 50%; background: #fff; transition: transform .15s; }
[data-theme="dark"] .switch { background: var(--accent); }
[data-theme="dark"] .knob { transform: translateX(12px); }

/* Main */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; gap: 12px; padding: 0 24px; height: 52px;
  border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--bg); z-index: 5;
}
.topbar h1 { font-size: 15px; font-weight: 600; margin: 0; letter-spacing: -.01em; }
.spacer { flex: 1; }
.menu-btn { display: none; border: 0; background: transparent; cursor: pointer; padding: 4px; border-radius: 6px; }
.view { padding: 20px 24px 48px; max-width: 1200px; width: 100%; }

/* Buttons & inputs */
.btn {
  display: inline-flex; align-items: center; gap: 6px; height: 32px; padding: 0 12px;
  border: 1px solid var(--border-strong); background: var(--bg); border-radius: 6px;
  cursor: pointer; font-weight: 500; font-size: 13px;
}
.btn:hover { background: var(--bg-hover); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--danger); }
.btn.sm { height: 26px; padding: 0 8px; font-size: 12px; }
.btn:disabled { opacity: .55; cursor: default; }
.icon-btn { border: 0; background: transparent; cursor: pointer; color: var(--text-3); padding: 4px 6px; border-radius: 6px; }
.icon-btn:hover { background: var(--bg-hover); color: var(--text); }
input, select {
  height: 32px; padding: 0 10px; border: 1px solid var(--border-strong); border-radius: 6px;
  background: var(--bg-input); width: 100%; outline: none;
}
input:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent); }
input::placeholder { color: var(--text-3); }

/* Filters */
.filters {
  display: grid; grid-template-columns: 2fr 1.4fr 1.1fr; gap: 10px; align-items: end;
  padding: 12px; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 16px;
}
.filters .field label { display: block; font-size: 11px; color: var(--text-3); font-weight: 500; margin-bottom: 4px; }
.range { display: flex; align-items: center; gap: 6px; }
.range span { color: var(--text-3); }
.filters .row2 { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr auto; gap: 10px; align-items: end; }

/* Table */
.table-wrap { border: 1px solid var(--border); border-radius: var(--radius); overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { font-size: 12px; color: var(--text-3); font-weight: 500; background: var(--bg-sidebar); }
tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--bg-hover); }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.actions { text-align: right; width: 1%; }
.actions .btn { margin-left: 4px; }
.cell-name { font-weight: 500; }
.muted { color: var(--text-2); }
.pill { display: inline-block; padding: 1px 8px; border-radius: 99px; font-size: 12px; font-weight: 500; }
.pill.ok { background: var(--ok-bg); color: var(--ok); }
.pill.out { background: var(--danger-bg); color: var(--danger); }
.pill.low { background: var(--warn-bg); color: var(--warn); }
.count { color: var(--text-3); font-size: 12px; margin: 0 0 8px; }
.empty { padding: 48px 16px; text-align: center; color: var(--text-2); }
.empty strong { display: block; color: var(--text); margin-bottom: 4px; }

/* Modal */
.modal-backdrop { position: fixed; inset: 0; background: rgba(10,11,13,.45); display: grid; place-items: center; z-index: 50; padding: 16px; }
.modal-backdrop[hidden] { display: none; }
.modal { width: 100%; max-width: 440px; background: var(--bg); border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow); }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px 0; }
.modal-head h2 { font-size: 15px; margin: 0; font-weight: 600; }
.modal-body { padding: 14px 16px; display: grid; gap: 12px; }
.modal-body label { display: block; font-size: 12px; color: var(--text-2); font-weight: 500; margin-bottom: 4px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 16px 16px; }
.form-error { margin: 0 16px; padding: 8px 10px; border-radius: 6px; background: var(--danger-bg); color: var(--danger); font-size: 13px; }
.form-error[hidden] { display: none; }
.hint { font-size: 12px; color: var(--text-3); margin-top: 4px; }

.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg);
  padding: 8px 14px; border-radius: 8px; font-size: 13px; z-index: 60; box-shadow: var(--shadow);
}
.toast[hidden] { display: none; }
.scrim { display: none; }

@media (max-width: 860px) {
  .sidebar { position: fixed; left: 0; top: 0; z-index: 40; transform: translateX(-100%); transition: transform .18s; }
  .sidebar.open { transform: none; }
  .scrim.show { display: block; position: fixed; inset: 0; background: rgba(10,11,13,.4); z-index: 30; }
  .menu-btn { display: inline-flex; }
  .topbar, .view { padding-left: 16px; padding-right: 16px; }
  .filters { grid-template-columns: 1fr; }
  .filters .row2 { grid-template-columns: 1fr 1fr; }
  .filters .row2 .clear { grid-column: 1 / -1; }
}