/* ==========================================================================
   Milo Interface System — foundation + components
   Depends on tokens.css (generated from tokens/*.json). Everything here uses
   semantic tokens; nothing hard-codes a colour.
   Rules: no card soup, rules and fields over boxes, one primary per surface,
   colour never the only state signal, 44px targets, reduced-motion honoured.
   ========================================================================== */

/* ---------- fonts (self-hosted, SIL OFL) ---------- */
@font-face { font-family: 'Instrument Serif'; src: url('../fonts/InstrumentSerif-Regular.ttf') format('truetype'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Instrument Serif'; src: url('../fonts/InstrumentSerif-Italic.ttf') format('truetype'); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: 'Inter'; src: url('../fonts/InterVariable.woff2') format('woff2'); font-weight: 100 900; font-style: normal; font-display: swap; }
@font-face { font-family: 'Inter'; src: url('../fonts/InterVariable-Italic.woff2') format('woff2'); font-weight: 100 900; font-style: italic; font-display: swap; }
@font-face { font-family: 'JetBrains Mono'; src: url('../fonts/JetBrainsMono-Regular.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'JetBrains Mono'; src: url('../fonts/JetBrainsMono-Medium.woff2') format('woff2'); font-weight: 500; font-display: swap; }

/* ---------- reset + base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--surface-primary); color: var(--text-primary);
  font-family: var(--font-interface); font-size: var(--type-body); line-height: var(--type-body-line);
  font-feature-settings: 'cv11', 'ss01', 'tnum' 0; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--dur-slow) var(--ease-standard), color var(--dur-slow) var(--ease-standard);
}
img, svg, video, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.15em; }
a:hover { color: var(--milo-agent-ink); }
button, input, select, textarea { font: inherit; color: inherit; }
hr { border: 0; border-top: 1px solid var(--hairline); margin: var(--space-8) 0; }
:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; border-radius: var(--radius-hairline); }
::selection { background: var(--milo-agent); color: var(--text-inverse); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: var(--space-4); top: -100px; z-index: 100; padding: var(--space-2) var(--space-4); background: var(--surface-inverse); color: var(--text-inverse); }
.skip-link:focus { top: var(--space-4); }
[hidden] { display: none !important; } /* review-apple: display:grid on .scrim must not defeat hidden */

/* ---------- typography roles ---------- */
.display-xl, .display-l, .display-m, .serif { font-family: var(--font-display); font-weight: 400; }
.display-xl { font-size: var(--type-display-xl); line-height: var(--type-display-xl-line); letter-spacing: var(--type-display-xl-tracking); margin: 0; }
.display-l { font-size: var(--type-display-l); line-height: var(--type-display-l-line); letter-spacing: var(--type-display-l-tracking); margin: 0; }
.display-m { font-size: var(--type-display-m); line-height: var(--type-display-m-line); letter-spacing: var(--type-display-m-tracking); margin: 0; }
.display-xl em, .display-l em, .display-m em { font-style: italic; color: var(--milo-agent-ink); }
.title { font-size: var(--type-title); line-height: var(--type-title-line); letter-spacing: var(--type-title-tracking); font-weight: 500; margin: 0; }
.heading { font-size: var(--type-heading); line-height: var(--type-heading-line); font-weight: 500; margin: 0; }
.body-s { font-size: var(--type-body-s); line-height: var(--type-body-s-line); }
.label { font-size: var(--type-label); line-height: var(--type-label-line); letter-spacing: var(--type-label-tracking); font-weight: 500; }
.micro { font-size: var(--type-micro); line-height: var(--type-micro-line); letter-spacing: var(--type-micro-tracking); font-weight: 500; text-transform: uppercase; }
.mono, code, kbd, pre { font-family: var(--font-mono); font-size: var(--type-mono); line-height: var(--type-mono-line); font-variant-ligatures: none; }
.mono-micro { font-family: var(--font-mono); font-size: var(--type-mono-micro); line-height: var(--type-mono-micro-line); letter-spacing: var(--type-mono-micro-tracking); }
.muted { color: var(--text-secondary); }
.quiet { color: var(--text-tertiary); }
.agent { color: var(--milo-agent-ink); }
.signal { color: var(--offline-signal-ink); }
.prose { max-width: var(--measure-prose); }
.prose > * + * { margin-top: var(--space-6); }
.prose h2 { font-family: var(--font-display); font-size: var(--type-display-m); font-weight: 400; line-height: 1.05; margin-top: var(--space-16); letter-spacing: -0.01em; }
.prose h3 { font-size: var(--type-title); font-weight: 500; margin-top: var(--space-10); }
.prose h4 { font-size: var(--type-heading); font-weight: 500; margin-top: var(--space-8); }
.prose blockquote { margin: var(--space-8) 0; padding-left: var(--space-6); border-left: 2px solid var(--milo-agent); font-family: var(--font-display); font-size: var(--type-display-m); line-height: 1.1; }
.prose blockquote cite { display: block; margin-top: var(--space-3); font-family: var(--font-interface); font-size: var(--type-micro); letter-spacing: var(--type-micro-tracking); text-transform: uppercase; font-style: normal; color: var(--text-secondary); }
.prose ul, .prose ol { padding-left: 1.25em; }
.prose li + li { margin-top: var(--space-1); }
.prose table { width: 100%; border-collapse: collapse; font-size: var(--type-body-s); }
.prose th, .prose td { text-align: left; padding: var(--space-2) var(--space-3) var(--space-2) 0; border-bottom: 1px solid var(--hairline); vertical-align: top; }
.prose th { font-size: var(--type-micro); letter-spacing: var(--type-micro-tracking); text-transform: uppercase; font-weight: 500; color: var(--text-secondary); }
pre { background: var(--surface-recessed); padding: var(--space-4); overflow: auto; border-left: 1px solid var(--hairline-strong); margin: 0; }
kbd { border: 1px solid var(--hairline); border-bottom-width: 2px; padding: 0 var(--space-1); border-radius: var(--radius-hairline); font-size: 0.75em; }

/* ---------- index numbers, hairlines, crosshairs (typographic devices) ---------- */
.index { font-family: var(--font-mono); font-size: var(--type-mono-micro); letter-spacing: 0.08em; color: var(--text-tertiary); }
.rule { border-top: 1px solid var(--hairline-strong); }
.rule-light { border-top: 1px solid var(--hairline); }
.eyebrow { display: flex; align-items: baseline; gap: var(--space-3); padding-bottom: var(--space-2); border-bottom: 1px solid var(--hairline-strong); margin-bottom: var(--space-6); }
.eyebrow .micro { color: var(--text-primary); }
.eyebrow .index { margin-left: auto; }
.crosshair { position: relative; }
.crosshair::before, .crosshair::after { content: ''; position: absolute; background: var(--hairline-strong); }
.crosshair::before { left: -12px; top: 0; width: 8px; height: 1px; }
.crosshair::after { left: -8.5px; top: -4px; width: 1px; height: 8px; }
.regmark { display: inline-block; width: 10px; height: 10px; border: 1px solid currentColor; border-radius: 50%; position: relative; vertical-align: middle; }
.regmark::before, .regmark::after { content: ''; position: absolute; background: currentColor; }
.regmark::before { left: -3px; right: -3px; top: 4px; height: 1px; }
.regmark::after { top: -3px; bottom: -3px; left: 4px; width: 1px; }
.caption { font-size: var(--type-body-s); color: var(--text-secondary); }
.annotation { font-family: var(--font-interface); font-size: var(--type-micro); letter-spacing: var(--type-micro-tracking); text-transform: uppercase; }
.annotation q::before { content: '“'; } .annotation q::after { content: '”'; }

/* ---------- grid ---------- */
.container { width: min(100% - 2 * var(--grid-margin), var(--grid-max)); margin-inline: auto; }
.grid { display: grid; grid-template-columns: repeat(var(--grid-columns), minmax(0, 1fr)); column-gap: var(--grid-gutter); row-gap: var(--space-8); }
.col-1 { grid-column: span 1; } .col-2 { grid-column: span 2; } .col-3 { grid-column: span 3; } .col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; } .col-6 { grid-column: span 6; } .col-7 { grid-column: span 7; } .col-8 { grid-column: span 8; }
.col-9 { grid-column: span 9; } .col-10 { grid-column: span 10; } .col-12 { grid-column: span 12; }
.col-start-2 { grid-column-start: 2; } .col-start-3 { grid-column-start: 3; } .col-start-4 { grid-column-start: 4; } .col-start-5 { grid-column-start: 5; } .col-start-7 { grid-column-start: 7; }
@media (max-width: 1079px) { :root { --grid-margin: 32px; } .col-1, .col-2, .col-3, .col-4, .col-5 { grid-column: span 6; } .col-7, .col-8, .col-9, .col-10 { grid-column: span 12; } [class*="col-start-"] { grid-column-start: auto; } }
@media (max-width: 719px) { :root { --grid-margin: 16px; } .grid { row-gap: var(--space-6); } [class*="col-"] { grid-column: span 12; } }
.stack > * + * { margin-top: var(--space-4); }
.stack-l > * + * { margin-top: var(--space-10); }
.cluster { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-4); align-items: center; }
.section { padding-block: var(--space-16); }
.section + .section { border-top: 1px solid var(--hairline); }
.grid-debug { background-image: repeating-linear-gradient(90deg, rgb(var(--milo-agent-rgb) / 0.08) 0 calc((100% - 11 * var(--grid-gutter)) / 12), transparent 0 calc((100% - 11 * var(--grid-gutter)) / 12 + var(--grid-gutter))); }

/* ---------- AppShell ---------- */
.app-shell { display: grid; grid-template-columns: var(--sidebar-nav) minmax(0, 1fr); min-height: 100vh; }
.app-shell.has-inspector { grid-template-columns: var(--sidebar-nav) minmax(0, 1fr) var(--sidebar-inspector); }
.app-shell.rail { grid-template-columns: var(--sidebar-rail) minmax(0, 1fr); }
.app-main { min-width: 0; padding: var(--space-8) var(--grid-margin); }
.app-inspector { border-left: 1px solid var(--hairline); padding: var(--space-6); background: var(--surface-secondary); }
@media (max-width: 1079px) { .app-shell, .app-shell.has-inspector { grid-template-columns: 1fr; } .app-inspector { border-left: 0; border-top: 1px solid var(--hairline); } }

/* ---------- NavigationRail / Primary / Secondary navigation ---------- */
.nav-rail { border-right: 1px solid var(--hairline); padding: var(--space-6) var(--space-4); display: flex; flex-direction: column; gap: var(--space-8); background: var(--surface-primary); position: sticky; top: 0; height: 100vh; overflow: auto; }
.nav-brand { display: flex; align-items: center; gap: var(--space-3); font-family: var(--font-display); font-size: 1.5rem; letter-spacing: -0.01em; text-decoration: none; }
.nav-brand .mark { width: 14px; height: 14px; border-radius: 50%; background: var(--milo-agent); box-shadow: inset 0 0 0 3px var(--surface-primary), 0 0 0 1px var(--milo-agent); }
.nav-group { display: flex; flex-direction: column; gap: 2px; }
.nav-group + .nav-group { padding-top: var(--space-4); border-top: 1px solid var(--hairline); }
.nav-group .micro { color: var(--text-tertiary); padding: 0 var(--space-2) var(--space-2); }
.nav-item { display: flex; align-items: center; gap: var(--space-3); min-height: var(--target-min); padding: var(--space-2) var(--space-2); text-decoration: none; color: var(--text-secondary); border-radius: var(--radius-control); border-left: 2px solid transparent; }
.nav-item:hover { color: var(--text-primary); background: var(--surface-secondary); }
.nav-item[aria-current="page"] { color: var(--text-primary); border-left-color: var(--milo-agent); background: var(--surface-secondary); font-weight: 500; }
.nav-item .glyph { width: 1.25em; text-align: center; color: var(--text-tertiary); font-family: var(--font-mono); }
.nav-item[aria-current="page"] .glyph { color: var(--milo-agent); }
.nav-item .count { margin-left: auto; font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-tertiary); }
.nav-secondary .nav-item { min-height: 36px; font-size: var(--type-body-s); }
.nav-rail.rail-only { padding: var(--space-6) var(--space-2); align-items: center; }
.nav-rail.rail-only .nav-item { justify-content: center; width: var(--target-min); }
.nav-rail.rail-only .nav-item span:not(.glyph) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; } /* label stays in the accessibility tree */

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); min-height: 36px; padding: 0 var(--space-4); border: 1px solid var(--hairline-strong); background: transparent; color: var(--text-primary); border-radius: var(--radius-control); cursor: pointer; font-size: var(--type-body-s); font-weight: 500; text-decoration: none; transition: background-color var(--dur-fast) var(--ease-standard), color var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard); position: relative; }
.btn::after { content: ''; position: absolute; inset: -4px; } /* 44px hit area */
.btn:hover { background: var(--surface-secondary); }
.btn:active { background: var(--surface-recessed); }
.btn-primary { background: var(--surface-inverse); color: var(--text-inverse); border-color: var(--surface-inverse); }
.btn-primary:hover { background: var(--milo-agent); border-color: var(--milo-agent); color: #fff; }
.btn-agent { background: var(--milo-agent); border-color: var(--milo-agent); color: var(--milo-carbon-1000); font-weight: 600; } /* carbon on vermilion: 5.5:1 light, 6.4:1 dark */
.btn-agent:hover { background: var(--milo-agent-ink); border-color: var(--milo-agent-ink); color: #fff; }
.btn-quiet { border-color: transparent; color: var(--text-secondary); }
.btn-quiet:hover { color: var(--text-primary); }
.btn-danger { border-color: var(--state-error); color: var(--state-error); }
.btn-danger:hover { background: var(--state-error); color: #fff; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: 0.45; cursor: not-allowed; }
.btn-s { min-height: 28px; padding: 0 var(--space-3); font-size: var(--type-label); }
.btn .kbd { margin-left: var(--space-2); opacity: 0.6; font-family: var(--font-mono); font-size: 0.7em; }

/* ---------- fields (inputs) ---------- */
.field { display: flex; flex-direction: column; gap: var(--space-1); }
.field > .label { color: var(--text-secondary); }
.input, .select, .textarea { min-height: 40px; padding: var(--space-2) var(--space-3); background: var(--surface-secondary); border: 1px solid var(--hairline); border-radius: var(--radius-control); width: 100%; }
.input:hover, .select:hover, .textarea:hover { border-color: var(--text-tertiary); }
.input:focus, .select:focus, .textarea:focus { outline: 2px solid var(--focus-ring); outline-offset: 0; border-color: transparent; }
.input[aria-invalid="true"] { border-color: var(--state-error); }
.field .error { color: var(--state-error); font-size: var(--type-label); }
.field .error::before { content: '✕ '; }
.textarea { min-height: 96px; resize: vertical; }
.input[disabled] { opacity: 0.5; }
.range { -webkit-appearance: none; appearance: none; width: 100%; height: 24px; background: transparent; }
.range::-webkit-slider-runnable-track { height: 1px; background: var(--hairline-strong); }
.range::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 14px; height: 14px; border-radius: 50%; background: var(--surface-primary); border: 1px solid var(--hairline-strong); margin-top: -6.5px; }
.range:focus-visible::-webkit-slider-thumb { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.range::-moz-range-track { height: 1px; background: var(--hairline-strong); }
.range::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: var(--surface-primary); border: 1px solid var(--hairline-strong); }
.switch { display: inline-flex; align-items: center; gap: var(--space-2); min-height: var(--target-min); cursor: pointer; }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch .track { width: 32px; height: 18px; border: 1px solid var(--hairline-strong); border-radius: var(--radius-pill); position: relative; transition: background-color var(--dur-fast); }
.switch .track::after { content: ''; position: absolute; top: 2px; left: 2px; width: 12px; height: 12px; border-radius: 50%; background: var(--text-primary); transition: transform var(--dur-fast) var(--ease-standard); }
.switch input:checked + .track { background: var(--surface-inverse); }
.switch input:checked + .track::after { background: var(--text-inverse); transform: translateX(14px); }
.switch input:focus-visible + .track { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

/* ---------- Status / state (colour + glyph + label, always) ---------- */
.state { display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--type-label); font-weight: 500; white-space: nowrap; }
.state .glyph { font-family: var(--font-mono); width: 1.1em; text-align: center; }
.state-idle { color: var(--text-tertiary); }
.state-queued { color: var(--text-secondary); }
.state-active, .state-needs-you { color: var(--milo-agent-ink); }
.state-active .glyph { animation: pulse var(--dur-ambient) ease-in-out infinite; animation-duration: 1.6s; }
.state-paused { color: var(--text-secondary); }
.state-done { color: var(--state-success); }
.state-warning { color: var(--state-warning); }
.state-error { color: var(--state-error); }
.state-local, .state-connected { color: var(--offline-signal-ink); }
.state-down { color: var(--text-tertiary); text-decoration: line-through; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
@media (prefers-reduced-motion: reduce) { .state-active .glyph { animation: none; } }
.pill { display: inline-flex; align-items: center; gap: var(--space-2); padding: 2px var(--space-3); border: 1px solid var(--hairline); border-radius: var(--radius-pill); font-size: var(--type-label); }
.pill-agent { border-color: var(--milo-agent); color: var(--milo-agent-ink); }
.pill-signal { border-color: var(--offline-signal); color: var(--offline-signal-ink); }
.tag { display: inline-block; padding: 1px var(--space-2); border: 1px solid var(--hairline); border-radius: var(--radius-hairline); font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-secondary); }

/* ---------- Progress / RunIndicator ---------- */
.progress { height: 2px; background: var(--hairline); position: relative; overflow: hidden; }
.progress > span { display: block; height: 100%; background: var(--milo-agent); transition: width var(--dur-base) var(--ease-standard); }
.progress.indeterminate > span { width: 30%; animation: slide 1.4s var(--ease-standard) infinite; }
@keyframes slide { from { transform: translateX(-100%); } to { transform: translateX(400%); } }
@media (prefers-reduced-motion: reduce) { .progress.indeterminate > span { animation: none; width: 100%; opacity: 0.4; } }
.run-indicator { display: inline-grid; grid-auto-flow: column; gap: 3px; align-items: end; height: 14px; }
.run-indicator i { width: 3px; background: var(--hairline-strong); height: 4px; }
.run-indicator i.on { background: var(--milo-agent); height: 14px; }
.run-indicator i.done { background: var(--text-primary); height: 8px; }
.run-indicator i.err { background: var(--state-error); height: 14px; }

/* ---------- Rows: Task, Project, Activity, File ---------- */
.rows { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--hairline-strong); }
.row { display: grid; grid-template-columns: 1.5rem minmax(0, 1fr) auto; align-items: center; column-gap: var(--space-4); min-height: 64px; padding: var(--space-4) 0; border-bottom: 1px solid var(--hairline); }
.row:hover { background: linear-gradient(90deg, var(--surface-secondary), transparent); }
.row:focus-within { outline: 2px solid var(--focus-ring); outline-offset: -2px; }
.row .glyph { font-family: var(--font-mono); color: var(--text-tertiary); text-align: center; }
.row .title-cell { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.row .title-cell a { text-decoration: none; }
.row .title-cell a:hover { text-decoration: underline; }
.row .meta { font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-tertiary); display: flex; gap: var(--space-3); flex-wrap: wrap; }
.row .trail { display: flex; align-items: center; gap: var(--space-4); justify-self: end; }
.row.is-active { border-left: 2px solid var(--milo-agent); padding-left: var(--space-3); }
.row.is-done .title-cell > a, .row.is-done .title-cell > span:first-child { color: var(--text-tertiary); text-decoration: line-through; }
.row.is-selected { background: var(--surface-secondary); }
.row-project { grid-template-columns: 1.5rem minmax(0, 1fr) 6rem auto; }
.row-project .bar { height: 2px; background: var(--hairline); } .row-project .bar > span { display: block; height: 100%; background: var(--text-primary); }
.row-activity { grid-template-columns: 5.5rem 1.5rem minmax(0, 1fr) auto; min-height: 40px; padding: var(--space-2) 0; }
.row-activity time { font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-tertiary); }
.row-activity.by-milo .glyph { color: var(--milo-agent); }
.row-activity.by-offline .glyph { color: var(--offline-signal); }
.row-file { grid-template-columns: 1.5rem minmax(0, 1fr) 6rem 5rem; }
.row-file .mono-micro { color: var(--text-tertiary); }

/* ---------- Task summary + run detail (progressive disclosure) ---------- */
.disclosure { border-top: 1px solid var(--hairline-strong); }
.disclosure > summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 1.5rem minmax(0, 1fr) auto; align-items: center; gap: var(--space-3); min-height: 52px; padding: var(--space-3) 0; }
.disclosure > summary::-webkit-details-marker { display: none; }
.disclosure > summary .glyph { font-family: var(--font-mono); color: var(--text-tertiary); transition: transform var(--dur-fast) var(--ease-standard); }
.disclosure[open] > summary .glyph { color: var(--milo-agent); }
.disclosure .run-detail { padding: 0 0 var(--space-6) 2.25rem; border-bottom: 1px solid var(--hairline); animation: expand var(--dur-base) var(--ease-standard); }
@keyframes expand { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
.steps { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--hairline); }
.steps li { display: grid; grid-template-columns: 1rem minmax(0, 1fr) auto; gap: var(--space-3); padding: var(--space-2) 0 var(--space-2) var(--space-4); position: relative; font-size: var(--type-body-s); }
.steps li::before { content: ''; position: absolute; left: -1px; top: 0; bottom: 0; width: 1px; }
.steps li.on::before { background: var(--milo-agent); }
.steps li .glyph { font-family: var(--font-mono); color: var(--text-tertiary); }
.steps li.on .glyph { color: var(--milo-agent); }
.steps li.done .glyph { color: var(--state-success); }
.steps li .mono-micro { color: var(--text-tertiary); }
.executor { display: inline-flex; gap: var(--space-2); align-items: center; font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--offline-signal-ink); }
.executor::before { content: '⌁'; }

/* ---------- Headers: Goal, Project, Artifact ---------- */
.object-header { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-4) var(--space-8); align-items: end; padding-bottom: var(--space-6); border-bottom: 1px solid var(--hairline-strong); margin-bottom: var(--space-8); }
.object-header .kicker { display: flex; gap: var(--space-3); align-items: center; margin-bottom: var(--space-3); }
.object-header h1 { margin: 0; font-family: var(--font-display); font-weight: 400; font-size: var(--type-display-m); line-height: 1.05; letter-spacing: -0.01em; }
.object-header .facts { display: flex; gap: var(--space-6); font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-secondary); flex-wrap: wrap; }
.object-header .facts b { color: var(--text-primary); font-weight: 500; }
.object-header .actions { display: flex; gap: var(--space-2); }
.goal-header h1 { font-size: var(--type-display-l); }
.artifact-header { border-bottom: 1px solid var(--hairline); }
.artifact-header .path { font-family: var(--font-mono); font-size: var(--type-mono); color: var(--text-secondary); }

/* ---------- Metrics, Quota, Cost, Resource, Machine, Model ---------- */
.metric { display: flex; flex-direction: column; gap: var(--space-1); padding: var(--space-4) 0; border-top: 1px solid var(--hairline-strong); }
.metric .value { font-family: var(--font-display); font-size: var(--type-display-m); line-height: 1; letter-spacing: -0.01em; font-variant-numeric: tabular-nums; }
.metric .value small { font-family: var(--font-mono); font-size: var(--type-mono); letter-spacing: 0; color: var(--text-secondary); margin-left: var(--space-2); }
.metric .delta { font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-secondary); }
.metric .delta.up::before { content: '↑ '; } .metric .delta.down::before { content: '↓ '; }
.quota { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-1) var(--space-4); align-items: baseline; padding: var(--space-3) 0; border-bottom: 1px solid var(--hairline); }
.quota .bar { grid-column: 1 / -1; height: 3px; background: var(--hairline); display: flex; }
.quota .bar > span { height: 100%; background: var(--text-primary); }
.quota .bar > span.agent { background: var(--milo-agent); }
.quota .bar > span.signal { background: var(--offline-signal); }
.quota.is-warning .mono-micro::before { content: '△ '; color: var(--state-warning); }
.quota .mono-micro { color: var(--text-secondary); }
.cost { font-family: var(--font-mono); font-variant-numeric: tabular-nums; display: inline-flex; gap: var(--space-2); align-items: baseline; }
.cost .cur { color: var(--text-tertiary); }
.cost.is-local { color: var(--offline-signal-ink); }
.cost.is-local::after { content: '⌁ local'; font-size: var(--type-mono-micro); color: var(--offline-signal-ink); }
.resource { display: grid; grid-template-columns: 6rem minmax(0, 1fr) 4rem; gap: var(--space-3); align-items: center; font-size: var(--type-body-s); padding: var(--space-2) 0; border-bottom: 1px solid var(--hairline); }
.resource .bar { height: 2px; background: var(--hairline); } .resource .bar > span { display: block; height: 100%; background: var(--offline-signal); }
.resource .mono-micro { text-align: right; }
.machine { display: grid; grid-template-columns: 1.5rem minmax(0, 1fr) auto auto; gap: var(--space-3); align-items: center; min-height: 52px; padding: var(--space-3) 0; border-bottom: 1px solid var(--hairline); }
.machine .glyph { font-family: var(--font-mono); color: var(--offline-signal); text-align: center; }
.machine.is-down .glyph { color: var(--text-tertiary); }
.machine .name { font-weight: 500; } .machine .spec { font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-tertiary); }
.machine.has-milo .glyph { color: var(--milo-agent); }
.machine.has-milo .glyph::after { content: ' ◉'; }
.model { display: grid; grid-template-columns: minmax(0, 1fr) auto auto auto; gap: var(--space-4); align-items: center; padding: var(--space-3) 0; border-bottom: 1px solid var(--hairline); font-size: var(--type-body-s); }
.model .id { font-family: var(--font-mono); }
.model .lane { font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-tertiary); }
.connection { display: grid; grid-template-columns: 1.5rem minmax(0, 1fr) auto; gap: var(--space-3); align-items: center; min-height: 48px; padding: var(--space-2) 0; border-bottom: 1px solid var(--hairline); }
.connection .glyph { font-family: var(--font-mono); color: var(--offline-signal); text-align: center; }
.connection.is-off .glyph { color: var(--text-tertiary); }
.connection .mono-micro { color: var(--text-tertiary); }

/* ---------- Composer (Milo conversation) ---------- */
.composer { border-top: 1px solid var(--hairline-strong); padding-top: var(--space-4); display: grid; grid-template-columns: 1.5rem minmax(0, 1fr) auto; gap: var(--space-3); align-items: start; }
.composer .mark { width: 12px; height: 12px; border-radius: 50%; background: var(--milo-agent); margin-top: 8px; box-shadow: inset 0 0 0 3px var(--surface-primary), 0 0 0 1px var(--milo-agent); }
.composer textarea { border: 0; background: transparent; padding: var(--space-2) 0; min-height: 40px; resize: none; width: 100%; font-size: var(--type-body); }
.composer textarea:focus { outline: none; }
.composer:focus-within { border-top-color: var(--milo-agent); }
.composer .context { grid-column: 2; font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-tertiary); display: flex; gap: var(--space-4); }
.turns { display: flex; flex-direction: column; gap: var(--space-8); }
.turn { display: grid; grid-template-columns: 1.5rem minmax(0, var(--measure-prose)); gap: var(--space-3); }
.turn .who { font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-tertiary); padding-top: 4px; }
.turn.milo .who { color: var(--milo-agent-ink); }
.turn.you .who { color: var(--text-secondary); }
.turn .body > * + * { margin-top: var(--space-3); }
.turn .artifact { border: 1px solid var(--hairline-strong); padding: var(--space-3) var(--space-4); display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-2); align-items: center; animation: emerge var(--dur-slow) var(--ease-enter); }
@keyframes emerge { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.turn .artifact .path { font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-secondary); }

/* ---------- VoicePill (transient, top-centre, level 3) ---------- */
.voice-pill { position: fixed; top: var(--space-4); left: 50%; transform: translateX(-50%); z-index: var(--z-3); display: inline-flex; align-items: center; gap: var(--space-3); min-height: 40px; padding: 0 var(--space-4) 0 var(--space-3); background: var(--surface-secondary); border: 1px solid var(--hairline); border-radius: var(--radius-pill); box-shadow: var(--shadow-3); animation: voice-in var(--dur-fast) var(--ease-enter); max-width: min(90vw, 520px); }
.voice-pill.static { position: relative; top: auto; left: auto; transform: none; animation: none; }
@keyframes voice-in { from { opacity: 0; transform: translateX(-50%) scale(0.96); } to { opacity: 1; transform: translateX(-50%) scale(1); } }
.voice-pill .ring { width: 16px; height: 16px; border-radius: 50%; border: 1.5px solid var(--milo-agent); position: relative; flex: none; }
.voice-pill .ring::after { content: ''; position: absolute; inset: 4px; border-radius: 50%; background: var(--milo-agent); }
.voice-pill .text { font-size: var(--type-body-s); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.voice-pill .text .transcript { color: var(--text-primary); }
.voice-pill .text .state-word { color: var(--text-tertiary); font-family: var(--font-mono); font-size: var(--type-mono-micro); margin-right: var(--space-2); }
.voice-pill[data-state="listening"] .ring { animation: breathe 1.2s ease-in-out infinite; }
.voice-pill[data-state="understanding"] .ring { border-style: dashed; animation: spin 1.6s linear infinite; }
.voice-pill[data-state="understanding"] .ring::after { opacity: 0.4; }
.voice-pill[data-state="working"] .ring::after { animation: pulse 0.9s ease-in-out infinite; }
.voice-pill[data-state="done"] .ring { border-color: var(--state-success); } .voice-pill[data-state="done"] .ring::after { background: var(--state-success); inset: 5px; }
.voice-pill[data-state="error"] .ring { border-color: var(--state-error); } .voice-pill[data-state="error"] .ring::after { background: var(--state-error); }
@keyframes breathe { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.12); } }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .voice-pill .ring, .voice-pill .ring::after { animation: none !important; } }

/* ---------- QuickEntry / CommandPalette / Search (level 3) ---------- */
.quick-entry { width: min(92vw, 640px); background: var(--surface-secondary); border: 1px solid var(--hairline); box-shadow: var(--shadow-3); border-radius: var(--radius-field); }
.quick-entry input { width: 100%; border: 0; background: transparent; padding: var(--space-4) var(--space-5); font-size: var(--type-title); font-family: var(--font-interface); }
.quick-entry input:focus { outline: none; }
.quick-entry .hint { display: flex; justify-content: space-between; padding: var(--space-2) var(--space-5) var(--space-3); border-top: 1px solid var(--hairline); font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-tertiary); }
.palette { width: min(92vw, 640px); background: var(--surface-secondary); border: 1px solid var(--hairline); box-shadow: var(--shadow-3); border-radius: var(--radius-field); overflow: hidden; }
.palette input { width: 100%; border: 0; border-bottom: 1px solid var(--hairline); background: transparent; padding: var(--space-3) var(--space-5); font-size: var(--type-body); }
.palette input:focus { outline: none; }
.palette ul { list-style: none; margin: 0; padding: var(--space-2) 0; max-height: 320px; overflow: auto; }
.palette li { display: grid; grid-template-columns: 1.5rem minmax(0, 1fr) auto; gap: var(--space-3); align-items: center; padding: var(--space-2) var(--space-5); min-height: 40px; cursor: pointer; }
.palette li[aria-selected="true"] { background: var(--surface-tertiary); border-left: 2px solid var(--milo-agent); padding-left: calc(var(--space-5) - 2px); }
.palette li .glyph { font-family: var(--font-mono); color: var(--text-tertiary); }
.palette li .kbd { font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-tertiary); }
.palette .group { padding: var(--space-2) var(--space-5) 0; }
.search { position: relative; }
.search input { padding-left: var(--space-8); }
.search::before { content: '⌕'; position: absolute; left: var(--space-3); top: 50%; transform: translateY(-50%); color: var(--text-tertiary); font-family: var(--font-mono); }

/* ---------- PermissionRequest / Confirmation (level 3 / 4) ---------- */
.scrim { position: fixed; inset: 0; background: rgb(11 12 9 / 0.4); z-index: var(--z-4); display: grid; place-items: center; padding: var(--space-4); }
.permission { width: min(92vw, 520px); background: var(--surface-secondary); border: 1px solid var(--hairline); border-left: 2px solid var(--milo-agent); border-radius: var(--radius-field); box-shadow: var(--shadow-3); padding: var(--space-5) var(--space-6); display: grid; gap: var(--space-4); }
.permission .ask { font-family: var(--font-display); font-size: var(--type-display-m); line-height: 1.05; }
.permission .detail { font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-secondary); display: grid; grid-template-columns: 6rem minmax(0, 1fr); gap: var(--space-1) var(--space-3); }
.permission .actions { display: flex; gap: var(--space-2); justify-content: flex-end; }
.confirmation { width: min(92vw, 520px); background: var(--surface-secondary); border: 2px solid var(--milo-agent); border-radius: var(--radius-field); box-shadow: var(--shadow-4); padding: var(--space-6); display: grid; gap: var(--space-4); }
.confirmation.is-destructive { border-color: var(--state-error); }
.confirmation .ask { font-family: var(--font-display); font-size: var(--type-display-m); line-height: 1.05; }
.confirmation .ask::before { content: '△ '; color: var(--state-warning); font-family: var(--font-mono); font-size: 0.6em; vertical-align: middle; }
.confirmation.is-destructive .ask::before { content: '✕ '; color: var(--state-error); }
.confirmation .actions { display: flex; gap: var(--space-2); justify-content: flex-end; }

/* ---------- Notification / Toast ---------- */
.toast { display: inline-grid; grid-template-columns: 1.5rem minmax(0, 1fr) auto; gap: var(--space-3); align-items: center; min-height: 44px; padding: var(--space-2) var(--space-3) var(--space-2) var(--space-4); background: var(--surface-inverse); color: var(--text-inverse); border-radius: var(--radius-control); font-size: var(--type-body-s); max-width: 420px; }
.toast .glyph { font-family: var(--font-mono); }
.toast.by-milo .glyph { color: var(--milo-agent); }
.toast.is-error .glyph { color: #FF8A80; }
.toast .btn { border-color: rgb(237 233 223 / 0.4); color: inherit; }
.notification { display: grid; grid-template-columns: 1.5rem minmax(0, 1fr) auto; gap: var(--space-3); padding: var(--space-3) 0; border-bottom: 1px solid var(--hairline); }
.notification .glyph { font-family: var(--font-mono); color: var(--milo-agent); }
.notification .when { font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-tertiary); }
.notification.is-read { color: var(--text-secondary); }
.notification.is-read .glyph { color: var(--text-tertiary); }

/* ---------- Popover / ContextMenu / Tabs ---------- */
.popover { display: inline-block; background: var(--surface-secondary); border: 1px solid var(--hairline); border-radius: var(--radius-field); box-shadow: var(--shadow-3); padding: var(--space-4); min-width: 220px; }
.menu { display: inline-block; background: var(--surface-secondary); border: 1px solid var(--hairline); border-radius: var(--radius-control); box-shadow: var(--shadow-3); padding: var(--space-1) 0; min-width: 200px; list-style: none; margin: 0; }
.menu li { display: flex; align-items: center; gap: var(--space-3); padding: 0 var(--space-4); min-height: 36px; cursor: pointer; font-size: var(--type-body-s); }
.menu li:hover, .menu li[aria-selected="true"] { background: var(--surface-tertiary); }
.menu li .kbd { margin-left: auto; font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-tertiary); }
.menu li.is-danger { color: var(--state-error); }
.menu hr { margin: var(--space-1) 0; }
.tabs { display: flex; gap: var(--space-6); border-bottom: 1px solid var(--hairline-strong); }
.tabs [role="tab"] { background: none; border: 0; padding: var(--space-3) 0; margin-bottom: -1px; border-bottom: 2px solid transparent; color: var(--text-secondary); cursor: pointer; font-weight: 500; font-size: var(--type-body-s); min-height: var(--target-min); }
.tabs [role="tab"]:hover { color: var(--text-primary); }
.tabs [role="tab"][aria-selected="true"] { color: var(--text-primary); border-bottom-color: var(--milo-agent); }
.tabs [role="tab"] .count { font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-tertiary); margin-left: var(--space-2); }

/* ---------- ArtworkCaption / ImageMetadata / provenance ---------- */
.figure { margin: 0; }
.figure img, .figure canvas { width: 100%; height: auto; background: var(--surface-recessed); }
.artwork-caption { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); /* review-vignelli: long titles must not collapse to one word per line */ gap: var(--space-2) var(--space-6); padding-top: var(--space-3); border-top: 1px solid var(--hairline-strong); margin-top: var(--space-3); }
.artwork-caption .artist { font-size: var(--type-micro); letter-spacing: var(--type-micro-tracking); text-transform: uppercase; font-weight: 500; }
.artwork-caption .work { font-family: var(--font-display); font-size: var(--type-title); line-height: 1.15; }
.artwork-caption .work i { font-style: italic; }
.artwork-caption .date { font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-secondary); }
.artwork-caption .institution { text-align: right; font-size: var(--type-micro); letter-spacing: var(--type-micro-tracking); text-transform: uppercase; color: var(--text-secondary); line-height: 1.5; }
.artwork-caption .institution b { display: block; color: var(--text-primary); font-weight: 500; }
.artwork-caption .actions { grid-column: 1 / -1; display: flex; gap: var(--space-4); font-size: var(--type-label); }
.artwork-caption .actions a { text-decoration: none; border-bottom: 1px solid var(--hairline-strong); }
.artwork-caption .actions a:hover { border-bottom-color: var(--milo-agent); }
.source-kind { display: inline-flex; align-items: center; gap: var(--space-2); font-family: var(--font-mono); font-size: var(--type-mono-micro); letter-spacing: 0.04em; text-transform: uppercase; }
.source-kind::before { content: ''; width: 8px; height: 8px; border: 1px solid currentColor; }
.source-kind.human::before { background: currentColor; }
.source-kind.transformed::before { background: repeating-linear-gradient(45deg, currentColor 0 1px, transparent 1px 3px); }
.source-kind.generated::before { border-radius: 50%; }
.source-kind.transformed { color: var(--milo-agent-ink); }
.image-metadata { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: var(--space-1) var(--space-4); font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--text-secondary); }
.image-metadata dt { color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.06em; }
.image-metadata dd { margin: 0; word-break: break-word; }
.image-metadata dd a { color: inherit; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: var(--grid-gutter); }
.compare .micro { margin-bottom: var(--space-2); display: flex; justify-content: space-between; }
@media (max-width: 719px) { .compare { grid-template-columns: 1fr; } }

/* ---------- Milo/Offline relationship: Vermilion entering Moss space ---------- */
.offline-field { border: 1px solid var(--offline-signal); padding: var(--space-4); position: relative; }
.offline-field::before { content: '⌁ OFFLINE'; position: absolute; top: -0.6em; left: var(--space-3); background: var(--surface-primary); padding: 0 var(--space-2); font-family: var(--font-mono); font-size: var(--type-mono-micro); color: var(--offline-signal-ink); letter-spacing: 0.08em; }
.offline-field .milo-presence { border-left: 2px solid var(--milo-agent); padding-left: var(--space-3); }

/* ---------- ambient nature (imperceptibly slow) ---------- */
.ambient { overflow: hidden; }
.ambient img, .ambient canvas { animation: ambient var(--dur-ambient) ease-in-out infinite alternate; transform-origin: 50% 60%; }
@keyframes ambient { from { transform: scale(1) translateY(0); } to { transform: scale(1.02) translateY(-0.6%); } }
@media (prefers-reduced-motion: reduce) { .ambient img, .ambient canvas { animation: none; } }

/* ---------- theme switch control ---------- */
.theme-toggle { display: inline-flex; border: 1px solid var(--hairline-strong); border-radius: var(--radius-control); overflow: hidden; }
.theme-toggle button { background: transparent; border: 0; min-height: 32px; padding: 0 var(--space-3); font-size: var(--type-label); cursor: pointer; color: var(--text-secondary); }
.theme-toggle button[aria-pressed="true"] { background: var(--surface-inverse); color: var(--text-inverse); }

/* ---------- utility ---------- */
.flow-root { display: flow-root; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.tnum { font-variant-numeric: tabular-nums; }
.frame { border: 1px solid var(--hairline-strong); }
.field-box { border: 1px solid var(--hairline); padding: var(--space-4); }
.inverse { background: var(--surface-inverse); color: var(--text-inverse); }
.swatch { aspect-ratio: 1; display: flex; align-items: flex-end; padding: var(--space-2); font-family: var(--font-mono); font-size: var(--type-mono-micro); }