:root {
  color-scheme: dark;
  --bg: #080c10;
  --surface: rgba(18, 25, 31, .88);
  --surface-solid: #12191f;
  --surface-raised: #19232b;
  --border: #2a3943;
  --border-bright: #426170;
  --text: #f3f7f8;
  --muted: #94a5ae;
  --accent: #18c8e8;
  --accent-strong: #08a9cf;
  --accent-soft: rgba(24, 200, 232, .13);
  --green: #55d6a9;
  --amber: #f4bd63;
  --red: #ff747a;
  --shadow: 0 18px 50px rgba(0, 0, 0, .32);
  font-family: Inter, "Segoe UI", "Microsoft YaHei UI", sans-serif;
  letter-spacing: 0;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); overflow-x: hidden; }
button, input, select, textarea { font: inherit; letter-spacing: 0; }
button { color: inherit; }
.hidden { display: none !important; }

.ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-color: var(--bg);
  background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}

.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 32px 20px; position: relative; }
.login-panel {
  width: min(440px, 100%);
  padding: 42px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(13, 19, 24, .78);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}
.login-panel h1 { margin: 16px 0 8px; font-size: 30px; line-height: 1.15; }
.brand-mark { width: 52px; height: 42px; display: flex; align-items: end; gap: 5px; }
.brand-mark span { width: 10px; border-radius: 3px 3px 1px 1px; background: var(--accent); box-shadow: 0 0 18px rgba(24, 200, 232, .38); }
.brand-mark span:nth-child(1) { height: 46%; }
.brand-mark span:nth-child(2) { height: 100%; background: var(--green); }
.brand-mark span:nth-child(3) { height: 70%; }
.brand-mark.compact { width: 34px; height: 29px; gap: 3px; }
.brand-mark.compact span { width: 7px; }
.eyebrow { margin: 0 0 5px; color: var(--accent); font-size: 11px; font-weight: 750; text-transform: uppercase; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

.stack-form { display: grid; gap: 17px; margin-top: 30px; }
label { display: grid; gap: 8px; color: #c7d2d7; font-size: 13px; font-weight: 600; }
input, select, textarea {
  width: 100%;
  color: var(--text);
  background: #0e151a;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 11px 12px;
  outline: none;
  transition: border-color .16s ease, box-shadow .16s ease, background-color .16s ease;
}
textarea { resize: vertical; min-height: 72px; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); background: #101a20; }
select { cursor: pointer; }
button { border: 0; cursor: pointer; transition: background-color .16s ease, border-color .16s ease, color .16s ease, transform .12s ease; }
button:active { transform: translateY(1px); }
button:disabled { opacity: .48; cursor: not-allowed; }
.primary, .secondary, .ghost, .text-button { border-radius: 6px; min-height: 38px; padding: 9px 15px; font-weight: 700; }
.primary { color: #041115; background: var(--accent); }
.primary:hover { background: #55d8ef; }
.secondary { color: var(--text); background: var(--surface-raised); border: 1px solid var(--border-bright); }
.secondary:hover, .ghost:hover { background: #24323b; }
.ghost { color: var(--muted); background: transparent; border: 1px solid var(--border); }
.text-button { color: var(--accent); background: transparent; padding-inline: 5px; }
.text-button:hover { color: #7ae5f7; }
.danger-button { color: var(--red); background: rgba(255, 116, 122, .1); border: 1px solid rgba(255, 116, 122, .25); border-radius: 6px; padding: 7px 10px; }
.wide { width: 100%; }
.form-error { min-height: 20px; color: var(--red); font-size: 13px; }

.app-shell { min-height: 100vh; display: grid; grid-template-columns: 246px minmax(0, 1fr); position: relative; }
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 246px;
  display: flex;
  flex-direction: column;
  padding: 21px 14px;
  background: rgba(10, 15, 19, .86);
  backdrop-filter: blur(18px);
  border-right: 1px solid var(--border);
  z-index: 5;
}
.side-brand { min-height: 58px; display: flex; gap: 12px; align-items: center; padding: 0 10px 14px; }
.side-brand strong { display: block; font-size: 14px; }
.side-brand small { display: block; margin-top: 3px; color: var(--muted); font-size: 11px; }
nav { display: grid; gap: 5px; margin-top: 22px; }
nav button { display: flex; align-items: center; gap: 11px; min-height: 43px; padding: 8px 12px; border-radius: 6px; color: var(--muted); background: transparent; text-align: left; font-weight: 650; }
nav button:hover { color: var(--text); background: rgba(255,255,255,.045); }
nav button.active { color: var(--text); background: var(--accent-soft); box-shadow: inset 3px 0 var(--accent); }
.nav-icon { width: 22px; color: var(--accent); text-align: center; font-size: 18px; }
.side-footer { margin-top: auto; display: grid; gap: 12px; }
.identity { padding: 12px; border-top: 1px solid var(--border); }
.identity strong, .identity small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.identity strong { font-size: 14px; }.identity small { color: var(--muted); margin-top: 3px; }

.workspace { grid-column: 2; width: min(1480px, 100%); min-width: 0; padding: 0 34px 48px; }
.topbar { height: 112px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border); }
.topbar h2 { margin: 0; font-size: 24px; }
.top-actions { display: flex; align-items: center; gap: 12px; }
.status-dot { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: 12px; }
.status-dot i { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px rgba(85,214,169,.55); }
.status-dot.offline i { background: var(--red); }
.icon-button { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 6px; color: var(--muted); background: var(--surface); border: 1px solid var(--border); font-size: 20px; }
.icon-button:hover { color: var(--text); border-color: var(--border-bright); }
.view { display: none; padding-top: 28px; animation: reveal .2s ease; }
.view.active { display: block; }
@keyframes reveal { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--surface); backdrop-filter: blur(14px); }
.metric-grid article { min-height: 146px; padding: 24px; border-right: 1px solid var(--border); }
.metric-grid article:last-child { border-right: 0; }
.metric-grid span, .metric-grid small { display: block; color: var(--muted); }
.metric-grid span { font-size: 12px; font-weight: 700; }
.metric-grid strong { display: block; margin: 14px 0 7px; font-size: 30px; }
.metric-grid small { font-size: 11px; }
.split-band { margin-top: 28px; display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; }
.split-band > section { min-width: 0; }
.section-heading, .toolbar, .dialog-heading { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.section-heading { margin-bottom: 14px; }
.section-heading h3, .toolbar h3, .dialog-heading h3 { margin: 0; font-size: 17px; }
.compact-list { border-top: 1px solid var(--border); }
.compact-item { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 14px; border-bottom: 1px solid var(--border); }
.compact-main { min-width: 0; display: flex; align-items: center; gap: 12px; }
.compact-main strong, .compact-main small { display: block; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.compact-main small { margin-top: 3px; color: var(--muted); }
.type-tile { flex: 0 0 36px; height: 36px; display: grid; place-items: center; border-radius: 6px; color: var(--accent); background: var(--accent-soft); font-size: 11px; font-weight: 800; text-transform: uppercase; }

.toolbar { min-height: 50px; margin-bottom: 18px; }
.toolbar-end { margin-left: auto; }
.segmented { display: inline-flex; padding: 3px; border: 1px solid var(--border); border-radius: 7px; background: #0e151a; }
.segmented button { min-height: 33px; padding: 6px 13px; border-radius: 4px; color: var(--muted); background: transparent; font-weight: 650; }
.segmented button.active { color: var(--text); background: var(--surface-raised); }
.filter-row { display: grid; grid-template-columns: minmax(260px, 1fr) 160px 160px; gap: 10px; margin-bottom: 15px; }
.filter-row select { padding-block: 9px; }
.search-field { position: relative; display: block; }
.search-field span { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 19px; }
.search-field input { padding-left: 38px; }
.users-filter { grid-template-columns: minmax(260px, 520px); }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); backdrop-filter: blur(12px); }
table { width: 100%; border-collapse: collapse; min-width: 850px; }
.admin-user-table { min-width: 1120px; }
th, td { height: 62px; padding: 10px 16px; border-bottom: 1px solid var(--border); text-align: left; font-size: 13px; }
th { height: 43px; color: var(--muted); background: rgba(255,255,255,.018); font-size: 11px; text-transform: uppercase; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: rgba(255,255,255,.018); }
.align-right { text-align: right; }
.cell-title strong, .cell-title small { display: block; max-width: 280px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.cell-title small { color: var(--muted); margin-top: 4px; }
.badge { display: inline-flex; align-items: center; min-height: 24px; padding: 3px 8px; border: 1px solid var(--border); border-radius: 99px; color: var(--muted); background: rgba(255,255,255,.025); font-size: 11px; }
.badge.active { color: var(--green); border-color: rgba(85,214,169,.28); background: rgba(85,214,169,.08); }
.badge.disabled { color: var(--amber); border-color: rgba(244,189,99,.28); background: rgba(244,189,99,.08); }
.tag-list { display: flex; flex-wrap: wrap; gap: 4px; max-width: 260px; }
.row-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
.row-actions button { min-height: 30px; padding: 5px 9px; border-radius: 5px; color: var(--muted); background: transparent; border: 1px solid var(--border); }
.row-actions button:hover { color: var(--text); border-color: var(--border-bright); }
.row-actions button.danger { color: var(--red); }
.badge-stack { display: flex; flex-wrap: wrap; gap: 5px; }
.table-note { display: block; margin-top: 4px; color: var(--muted); font-size: 11px; line-height: 1.35; }
.empty { padding: 48px 20px; color: var(--muted); text-align: center; }

.user-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(245px, 1fr)); gap: 12px; }
.user-card { min-height: 164px; padding: 19px; text-align: left; border-radius: 8px; color: var(--text); background: var(--surface); border: 1px solid var(--border); backdrop-filter: blur(12px); }
.user-card:hover { border-color: var(--border-bright); background: var(--surface-raised); }
.user-card-top { display: flex; align-items: center; gap: 12px; }
.user-card strong, .user-card small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-card small { color: var(--muted); margin-top: 3px; }
.user-card p { color: var(--muted); min-height: 35px; font-size: 12px; line-height: 1.45; }
.count-row { display: flex; gap: 14px; color: var(--muted); font-size: 11px; }
.avatar { flex: 0 0 auto; width: 42px; height: 42px; display: grid; place-items: center; overflow: hidden; border-radius: 50%; color: #061318; background: var(--accent); border: 2px solid rgba(255,255,255,.12); font-weight: 800; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar.large { width: 112px; height: 112px; margin: 0 auto; font-size: 32px; }

.profile-layout { display: grid; grid-template-columns: 250px minmax(0, 760px); gap: 34px; align-items: start; }
.profile-summary { text-align: center; padding: 24px; border-right: 1px solid var(--border); }
.profile-summary h3 { margin: 17px 0 4px; }
.profile-summary p { margin: 0 0 10px; }
.profile-editor { min-width: 0; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.span-2 { grid-column: span 2; }
.form-actions { display: flex; justify-content: flex-end; gap: 9px; }
.divider { height: 1px; margin: 28px 0; background: var(--border); }
.inline-form { display: grid; grid-template-columns: 1fr 1fr auto; gap: 10px; align-items: end; }
.check-row { grid-template-columns: 18px 1fr; align-items: center; }
.check-row input { width: 16px; height: 16px; accent-color: var(--accent); }

.dialog { width: min(480px, calc(100% - 32px)); max-height: calc(100vh - 40px); padding: 0; overflow-y: auto; color: var(--text); background: rgba(14, 20, 25, .96); border: 1px solid var(--border-bright); border-radius: 8px; box-shadow: var(--shadow); backdrop-filter: blur(20px); }
.dialog::backdrop { background: rgba(2, 5, 7, .72); backdrop-filter: blur(4px); }
.dialog-body { display: grid; gap: 16px; padding: 25px; }
.dialog-body > h3 { margin: 0; font-size: 20px; }
.wide-dialog { width: 100%; }
#assetDialog, #userProfileDialog { width: min(680px, calc(100% - 32px)); }
#adminUserDialog { width: min(820px, calc(100% - 32px)); }
.admin-user-section { display: grid; gap: 15px; padding-top: 20px; border-top: 1px solid var(--border); }
.section-copy h4 { margin: 0; font-size: 15px; }
.admin-inline-form { display: grid; grid-template-columns: minmax(220px, 1fr) auto; gap: 10px; align-items: end; }
.role-toggle { margin-bottom: 15px; padding: 12px; border: 1px solid rgba(24, 200, 232, .2); border-radius: 6px; background: var(--accent-soft); }
.role-toggle span, .permission-option span { min-width: 0; }
.role-toggle strong, .role-toggle small, .permission-option strong, .permission-option small { display: block; }
.role-toggle small, .permission-option small { margin-top: 3px; color: var(--muted); font-size: 10px; font-weight: 500; overflow-wrap: anywhere; }
.permission-fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
.permission-fieldset legend { margin-bottom: 10px; color: var(--muted); font-size: 11px; font-weight: 700; }
.permission-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.permission-option { min-width: 0; min-height: 54px; grid-template-columns: 18px minmax(0, 1fr); align-items: center; padding: 9px 10px; border: 1px solid var(--border); border-radius: 6px; background: rgba(255,255,255,.018); }
.permission-option:has(input:checked) { border-color: rgba(24, 200, 232, .3); background: var(--accent-soft); }
.permission-option input { width: 16px; height: 16px; accent-color: var(--accent); }
.profile-field-grid .permission-option { min-height: 48px; }
.binding-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.binding-actions > div { min-width: 0; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 7px 12px; align-items: center; padding: 13px 0; }
.binding-actions > div + div { padding-left: 18px; border-left: 1px solid var(--border); }
.binding-actions span { color: var(--muted); font-size: 12px; }
.binding-actions strong { font-size: 12px; }
.binding-actions button { grid-column: 1 / -1; justify-self: start; }
.drop-zone { min-height: 112px; display: grid; place-items: center; border: 1px dashed var(--border-bright); border-radius: 7px; color: var(--muted); background: rgba(24,200,232,.035); cursor: pointer; }
.drop-zone:hover, .drop-zone.dragging { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.drop-zone input { display: none; }
.profile-detail { display: grid; grid-template-columns: 110px 1fr; gap: 20px; align-items: start; }
.profile-detail dl { display: grid; grid-template-columns: 110px 1fr; gap: 10px 14px; margin: 0; font-size: 13px; }
.profile-detail dt { color: var(--muted); }.profile-detail dd { margin: 0; }

.toast-region { position: fixed; right: 22px; bottom: 22px; z-index: 20; display: grid; gap: 8px; width: min(360px, calc(100% - 40px)); }
.toast { padding: 13px 15px; border: 1px solid var(--border-bright); border-left: 3px solid var(--accent); border-radius: 6px; background: #172129; box-shadow: var(--shadow); font-size: 13px; animation: toast-in .2s ease; }
.toast.error { border-left-color: var(--red); }
@keyframes toast-in { from { opacity: 0; transform: translateY(6px); } }

@media (max-width: 980px) {
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .metric-grid article:nth-child(2) { border-right: 0; }
  .metric-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .split-band { grid-template-columns: 1fr; }
  .profile-layout { grid-template-columns: 190px 1fr; gap: 24px; }
}

@media (max-width: 720px) {
  .app-shell { display: block; padding-bottom: 70px; }
  .sidebar { position: fixed; inset: auto 0 0; width: auto; height: 66px; padding: 7px 8px; border: 0; border-top: 1px solid var(--border); }
  .side-brand, .side-footer { display: none; }
  nav { display: flex; justify-content: space-around; margin: 0; gap: 2px; }
  nav button { min-width: 0; flex: 1; min-height: 51px; justify-content: center; padding: 5px; font-size: 0; }
  nav button.active { box-shadow: inset 0 3px var(--accent); }
  .nav-icon { font-size: 20px; }
  .workspace { width: 100%; padding: 0 16px 30px; }
  .topbar { height: 88px; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .metric-grid article { min-height: 120px; padding: 17px; }
  .metric-grid strong { font-size: 24px; }
  .filter-row { grid-template-columns: 1fr; }
  .toolbar { align-items: flex-end; }
  .profile-layout { grid-template-columns: 1fr; }
  .profile-summary { border: 0; border-bottom: 1px solid var(--border); }
  .form-grid, .inline-form { grid-template-columns: 1fr; }
  .admin-inline-form, .permission-grid, .binding-actions { grid-template-columns: 1fr; }
  .binding-actions > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--border); }
  .span-2 { grid-column: auto; }
  .login-panel { padding: 28px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}