:root {
  color-scheme: dark;
  --color-bg: #0b0f14;
  --color-surface: #121922;
  --color-surface-raised: #17212d;
  --color-surface-hover: #1d2a39;
  --color-text: #eef4fb;
  --color-muted: #9fb0c2;
  --color-border: #2a3949;
  --color-accent: #75b7ff;
  --accent: var(--color-accent);
  --color-good: #71d79b;
  --color-warn: #f1c66f;
  --color-bad: #ff8e8e;
  --color-shadow: rgb(0 0 0 / 0.22);
  --color-backdrop: rgb(0 0 0 / 0.62);
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Consolas, monospace;
  --font-size-xs: 0.8rem;
  --font-size-sm: 0.9rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.1rem;
  --font-size-xl: 1.25rem;
  --font-size-title: 1.7rem;
  --font-size-metric: 2rem;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --control-height: 2.75rem;
  --content-max: 100rem;
  --sidebar-width: 15rem;
  --sidebar-width-collapsed: 4.5rem;
  --table-max-height: 65vh;
  --logs-max-height: 60vh;
  --transition-fast: 140ms;
  --transition-normal: 220ms;
  --shadow-panel: 0 14px 32px var(--color-shadow);
  --z-toast: 50;
  --z-popover: 40;
}

* { box-sizing: border-box; }
html { min-width: 20rem; }
body { margin: 0; min-height: 100vh; background: var(--color-bg); color: var(--color-text); font-family: var(--font-sans); }
button, input, select, textarea { font: inherit; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.icon { width: 1.1rem; height: 1.1rem; flex: 0 0 auto; }

.shell { display: grid; min-height: 100vh; grid-template-columns: var(--sidebar-width) minmax(0, 1fr); transition: grid-template-columns var(--transition-normal) ease; }
.shell.sidebar-collapsed { grid-template-columns: var(--sidebar-width-collapsed) minmax(0, 1fr); }
aside { min-width: 0; border-right: 1px solid var(--color-border); padding: var(--space-5); background: var(--color-surface); overflow: hidden; }
.sidebar-heading { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); margin-bottom: var(--space-5); }
.brand { min-width: 0; font-weight: 750; font-size: 1.15rem; white-space: nowrap; }
.brand-name, .brand-suffix, .nav-label { transition: opacity var(--transition-fast) ease; }
.shell.sidebar-collapsed .brand-name, .shell.sidebar-collapsed .brand-suffix, .shell.sidebar-collapsed .nav-label { opacity: 0; pointer-events: none; }
.shell.sidebar-collapsed .sidebar-heading { justify-content: center; }
.side-nav { display: grid; gap: var(--space-1); }
.side-nav a { display: flex; align-items: center; min-height: 2.4rem; color: var(--color-muted); padding: 0.6rem 0.7rem; border-radius: var(--radius-sm); white-space: nowrap; }
.side-nav a[aria-current="page"], .side-nav a:hover { color: var(--color-text); background: var(--color-surface-raised); text-decoration: none; }
.shell.sidebar-collapsed .side-nav a { justify-content: center; padding-inline: var(--space-2); }

main { min-width: 0; width: min(100%, var(--content-max)); padding: var(--space-6); }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); margin-bottom: var(--space-6); }
.topbar-primary { min-width: 0; }
.topbar-actions { display: flex; align-items: center; gap: var(--space-2); }
h1 { margin: 0; font-size: var(--font-size-title); }
h2, h3 { line-height: 1.25; }
p.lead { color: var(--color-muted); margin-top: 0; }
.muted { color: var(--color-muted); }
.spaced { margin-top: var(--space-4); }
.section-title { margin: var(--space-6) 0 var(--space-3); font-size: var(--font-size-lg); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); gap: var(--space-4); }
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-5); box-shadow: var(--shadow-panel); }
.metric { font-size: var(--font-size-metric); font-weight: 760; margin-top: 0.35rem; }
.metric-compact { font-size: var(--font-size-xl); }
.metric-grid { display: grid; grid-template-columns: repeat(5, minmax(6rem, 1fr)); gap: var(--space-2); }
.operation-summary { padding: var(--space-4); }
.operation-summary h3 { margin: 0 0 var(--space-2); }
.operation-summary .metric { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-2); margin: 0; padding: var(--space-2) var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-bg); font-size: var(--font-size-sm); font-weight: 600; }
.operation-summary .metric span { color: var(--color-muted); }
.operation-summary .metric strong { color: var(--color-text); font-size: var(--font-size-xl); }

.icon-button { display: inline-grid; place-items: center; width: var(--control-height); height: var(--control-height); padding: 0; border: 1px solid transparent; border-radius: var(--radius-sm); background: transparent; color: var(--color-muted); cursor: pointer; }
.icon-button:hover { color: var(--color-text); border-color: var(--color-border); background: var(--color-surface-raised); }
.icon-button.action-icon { border-color: var(--color-border); }
.icon-button.danger { color: var(--color-bad); }
.icon-button.danger:hover { border-color: var(--color-bad); }
.account-menu { position: relative; }
.account-summary { display: flex; align-items: center; gap: var(--space-2); min-height: var(--control-height); padding: 0 var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface); color: var(--color-text); cursor: pointer; list-style: none; }
.account-summary::-webkit-details-marker { display: none; }
.account-menu[open] .account-summary, .account-summary:hover { background: var(--color-surface-raised); }
.account-popover { position: absolute; top: calc(100% + var(--space-2)); right: 0; z-index: var(--z-popover); min-width: 13rem; padding: var(--space-2); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); box-shadow: var(--shadow-panel); }
.account-popover form { margin: 0; }
.menu-action { display: flex; width: 100%; align-items: center; gap: var(--space-2); min-height: 2.5rem; padding: var(--space-2) var(--space-3); border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--color-text); text-align: left; cursor: pointer; }
a.menu-action:hover, button.menu-action:hover { background: var(--color-surface-raised); text-decoration: none; }

.toast-region { position: fixed; top: var(--space-4); right: var(--space-4); z-index: var(--z-toast); display: grid; gap: var(--space-2); width: min(24rem, calc(100vw - (2 * var(--space-4)))); pointer-events: none; }
.toast { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-3); padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface-raised); box-shadow: var(--shadow-panel); pointer-events: auto; }
.toast-success { border-color: var(--color-good); }
.toast-warning { border-color: var(--color-warn); }
.toast-error { border-color: var(--color-bad); }
.toast-dismiss { border: 0; background: transparent; color: var(--color-muted); padding: 0; cursor: pointer; }

.data-table { display: grid; gap: var(--space-2); min-width: 0; }
.table-toolbar { display: flex; justify-content: space-between; gap: var(--space-2); align-items: center; flex-wrap: wrap; }
.table-search { margin: 0; min-width: min(22rem, 100%); flex: 1 1 16rem; }
.table-search input { min-height: 2.35rem; padding-block: var(--space-2); }
.table-collapse { min-height: 2.35rem; padding-block: var(--space-2); }
.table-wrap { max-height: var(--table-max-height); overflow: auto; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); }
.table-wrap[hidden] { display: none; }
.table-sort { width: 100%; min-height: 0; display: inline-flex; align-items: center; gap: var(--space-1); padding: 0; border: 0; border-radius: 0; background: transparent; color: inherit; font: inherit; text-transform: inherit; letter-spacing: inherit; justify-content: flex-start; }
.table-sort:hover { color: var(--color-text); border-color: transparent; }
th[aria-sort="ascending"] .sort-indicator::after { content: "↑"; }
th[aria-sort="descending"] .sort-indicator::after { content: "↓"; }
.table-empty { padding: var(--space-5); text-align: center; color: var(--color-muted); }
.timestamp-cell { display: inline-grid; gap: 0.1rem; white-space: nowrap; }
[data-table-key="operations-table"] th:nth-child(1), [data-table-key="operations-table"] td:nth-child(1) { min-width: 8.5rem; }
[data-table-key="operations-table"] th:nth-child(3), [data-table-key="operations-table"] td:nth-child(3) { width: 7.5rem; text-align: center; }
[data-table-key="operations-table"] td:nth-child(3) .badge { min-width: 6.5rem; text-align: center; }
[data-table-key="operations-table"] th:nth-child(5), [data-table-key="operations-table"] td:nth-child(5) { min-width: 9rem; max-width: 16rem; }
[data-table-key="operations-table"] th:nth-child(7), [data-table-key="operations-table"] td:nth-child(7) { min-width: 10rem; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: var(--space-3) 0.9rem; text-align: left; border-bottom: 1px solid var(--color-border); vertical-align: top; }
th { position: sticky; top: 0; z-index: 1; color: var(--color-muted); background: var(--color-surface); font-size: var(--font-size-xs); text-transform: uppercase; letter-spacing: 0.04em; }
tr:last-child td { border-bottom: 0; }
code, .secret-value { font-family: var(--font-mono); }
code { font-size: var(--font-size-sm); }
.badge { display: inline-block; padding: 0.15rem var(--space-2); border: 1px solid var(--color-border); border-radius: var(--radius-pill); background: var(--color-surface-raised); }

.login-shell { min-height: 100vh; display: grid; place-items: center; padding: var(--space-5); }
.login-card { width: min(28rem, 100%); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-6); box-shadow: var(--shadow-panel); }
label { display: grid; gap: 0.4rem; margin: var(--space-4) 0; color: var(--color-muted); }
input, textarea, select { width: 100%; min-height: var(--control-height); padding: var(--space-3); border-radius: var(--radius-sm); border: 1px solid var(--color-border); background: var(--color-bg); color: var(--color-text); }
textarea { resize: vertical; }
button { min-height: var(--control-height); border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface-raised); color: var(--color-text); padding: 0.7rem var(--space-4); cursor: pointer; }
button:hover { border-color: var(--color-accent); }
button:disabled { opacity: 0.65; cursor: wait; }
.button-link { display: inline-flex; align-items: center; gap: var(--space-2); padding: 0.6rem 0.8rem; border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
.button-link:hover { background: var(--color-surface-raised); text-decoration: none; }
.actions { display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; }
.actions form { display: inline-flex; gap: var(--space-2); margin: 0; align-items: center; }
.actions input { width: 10rem; padding: var(--space-2); }
.action-feedback { margin-left: var(--space-2); color: var(--color-muted); }
.error { color: var(--color-bad); }
.success { padding: var(--space-3); border: 1px solid var(--color-good); border-radius: var(--radius-md); }
.warning { padding: var(--space-3); border: 1px solid var(--color-warn); border-radius: var(--radius-md); }
.op-focus { color: var(--color-accent); }
.status-succeeded, .probe-pass { border-color: var(--color-good); }
.status-failed, .status-interrupted, .probe-fail { border-color: var(--color-bad); }
.probe-warn { border-color: var(--color-warn); }
.probe-neutral { border-color: var(--color-border); }

.editor { display: grid; gap: var(--space-4); max-width: 48rem; }
.editor fieldset { display: grid; gap: var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-4); }
.editor legend { padding: 0 var(--space-2); }
.editor label { margin: 0; }
.editor small { display: block; }
.inline-controls { display: flex; gap: var(--space-3); flex-wrap: wrap; align-items: end; margin-bottom: var(--space-4); }
.inline-controls label { margin: 0; }
.logs { max-height: var(--logs-max-height); overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); }
.endpoint-input-stack, .endpoint-status-stack, .endpoint-action-stack { display: grid; gap: var(--space-2); }
.endpoint-input-stack { min-width: min(26rem, 50vw); }
.endpoint-input-stack input { min-height: 2.35rem; padding-block: var(--space-2); }
.endpoint-status-stack, .endpoint-action-stack { justify-items: start; }
.endpoint-legacy-note { display: grid; gap: var(--space-1); margin-top: var(--space-2); max-width: 34rem; }
.endpoint-access-form { display: grid; gap: var(--space-3); min-width: min(32rem, 65vw); }
.endpoint-access-form label { margin: 0; }
.endpoint-access-form details { border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: var(--space-3); }
.secret-value { min-width: 22rem; }
.secret-copy-control { display: flex; align-items: center; gap: var(--space-2); min-width: 24rem; }
.secret-copy-control .secret-value { min-width: 0; flex: 1 1 auto; }
.bulk-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; margin: 0 0 var(--space-4); }
.js .bulk-actions[data-batch-bar] { display: none; }
.js .bulk-actions[data-batch-bar].is-visible { display: flex; position: fixed; left: 50%; bottom: var(--space-5); transform: translateX(-50%); z-index: 20; padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-pill); background: var(--color-surface-raised); box-shadow: var(--shadow-panel); margin: 0; }
.batch-count { color: var(--color-muted); white-space: nowrap; }
.bulk-actions label { margin: 0; display: flex; align-items: center; gap: var(--space-2); }
.bulk-actions select { min-width: 10rem; }
.admin-dialog { width: min(58rem, calc(100vw - 2 * var(--space-4))); max-height: calc(100vh - 2 * var(--space-4)); padding: 0; overflow: auto; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); color: var(--color-text); box-shadow: var(--shadow-panel); }
.admin-dialog::backdrop { background: var(--color-backdrop); }
.dialog-heading { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-4) var(--space-5); border-bottom: 1px solid var(--color-border); background: var(--color-surface); }
.dialog-heading h2 { margin: 0.15rem 0 0; }
.dialog-editor { max-width: none; padding: var(--space-5); }
.dialog-actions { position: sticky; bottom: 0; display: flex; justify-content: flex-end; gap: var(--space-2); padding-top: var(--space-3); background: var(--color-surface); }
.inline-instance-editor { display: grid; grid-template-columns: minmax(12rem, 0.8fr) minmax(18rem, 1.2fr) auto; gap: var(--space-3); align-items: end; }
.inline-instance-editor label { margin: 0; }
.instance-identity-card h3 { margin-top: 0; }
.instance-inline-detail:not(:empty) { margin-top: var(--space-5); }
.instance-inline-panel { display: grid; gap: var(--space-4); }
.instance-inline-heading { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); }
.instance-inline-heading h2 { margin: 0.15rem 0 0; }
.instance-inline-panel #instance-overview { margin: 0; }
input[type="checkbox"] { width: auto; min-width: 1rem; min-height: 1rem; }

.htmx-indicator { display: none; }
.htmx-request .htmx-indicator, .htmx-request.htmx-indicator { display: inline-flex; }
.fragment-placeholder { min-height: 6rem; display: grid; place-items: center; color: var(--color-muted); border: 1px dashed var(--color-border); border-radius: var(--radius-md); }

::view-transition-old(main-content), ::view-transition-new(main-content) { animation-duration: var(--transition-normal); }
#main-content { view-transition-name: main-content; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}

@media (max-width: 800px) {
  .shell, .shell.sidebar-collapsed { grid-template-columns: 1fr; }
  aside { border-right: 0; border-bottom: 1px solid var(--color-border); padding: var(--space-4); }
  .shell.sidebar-collapsed .brand-name, .shell.sidebar-collapsed .brand-suffix, .shell.sidebar-collapsed .nav-label { opacity: 1; pointer-events: auto; }
  .shell.sidebar-collapsed .sidebar-heading { justify-content: space-between; }
  .shell.sidebar-collapsed .side-nav { display: none; }
  .side-nav { grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr)); }
  main { padding: var(--space-4); }
  .topbar { align-items: flex-start; }
  .account-summary span { display: none; }
  .endpoint-input-stack, .endpoint-access-form { min-width: 0; }
  .instance-inline-heading { align-items: flex-start; flex-direction: column; }
  .inline-instance-editor { grid-template-columns: 1fr; }
  .secret-copy-control { min-width: 16rem; }
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .table-toolbar { align-items: stretch; }
  .table-search { min-width: 100%; }
  .js .bulk-actions[data-batch-bar].is-visible { width: calc(100% - 2 * var(--space-4)); bottom: var(--space-4); border-radius: var(--radius-md); justify-content: space-between; }
}