/* Mutual Trust portal. All styling lives here (CSP: style-src 'self'). */

:root {
  --font: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;

  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f1f3f6;
  --border: #d9dee5;
  --border-strong: #b8c0cc;
  --text: #111827;
  --text-muted: #4b5563;
  --link: #1d4ed8;
  --focus: #2563eb;

  --primary: #1d4ed8;
  --primary-hover: #1e40af;
  --on-primary: #ffffff;
  --danger: #b91c1c;
  --danger-hover: #991b1b;
  --on-danger: #ffffff;

  --ok-bg: #e7f6ec; --ok-fg: #14532d; --ok-bd: #9ad4ae;
  --warn-bg: #fff6e0; --warn-fg: #713f12; --warn-bd: #f0cf7a;
  --danger-bg: #fdecec; --danger-fg: #7f1d1d; --danger-bd: #f1aaaa;
  --info-bg: #e8f0fe; --info-fg: #1e3a8a; --info-bd: #a9c2f5;
  --neutral-bg: #eef0f3; --neutral-fg: #374151; --neutral-bd: #cfd5dd;
  --sandbox-bg: #fff2cc; --sandbox-fg: #6b3d00; --sandbox-bd: #e5b84a;
  --prod-bg: #ede9fe; --prod-fg: #3b0764; --prod-bd: #c4b5fd;

  --code-bg: #0f172a;
  --code-fg: #e2e8f0;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.08);
  --gutter: 16px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f17;
    --surface: #121826;
    --surface-2: #1a2232;
    --border: #2a3446;
    --border-strong: #3b475c;
    --text: #e8ecf3;
    --text-muted: #a6b0c0;
    --link: #8fb4ff;
    --focus: #8fb4ff;

    --primary: #3b6ef5;
    --primary-hover: #5a86ff;
    --on-primary: #ffffff;
    --danger: #dc4b4b;
    --danger-hover: #ef6262;

    --ok-bg: #0f2a1b; --ok-fg: #a7f3c4; --ok-bd: #1f6b40;
    --warn-bg: #2d2208; --warn-fg: #fcd98a; --warn-bd: #7a5a12;
    --danger-bg: #2f1212; --danger-fg: #fecaca; --danger-bd: #7f2a2a;
    --info-bg: #13213f; --info-fg: #c7d7ff; --info-bd: #2f4c8a;
    --neutral-bg: #1e2635; --neutral-fg: #cbd3df; --neutral-bd: #364156;
    --sandbox-bg: #33260a; --sandbox-fg: #ffd98a; --sandbox-bd: #8a6516;
    --prod-bg: #251a3f; --prod-fg: #ddd0ff; --prod-bd: #5b44a1;

    --code-bg: #060a12;
    --code-fg: #dbe4f0;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 0.5em; }
h1 { font-size: 1.65rem; font-weight: 700; letter-spacing: -0.01em; }
h2 { font-size: 1.15rem; font-weight: 600; }
h3 { font-size: 1rem; font-weight: 600; margin-top: 1.1em; }
h4 { font-size: 0.92rem; font-weight: 600; margin: 1.2em 0 0.5em; color: var(--text); }
p { margin: 0 0 0.75em; }
a { color: var(--link); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
code, pre, .mono { font-family: var(--mono); font-size: 0.86em; }
code { overflow-wrap: anywhere; }
.wrap { word-break: break-all; }
.muted { color: var(--text-muted); }
.small { font-size: 0.85rem; }
.text-danger { color: var(--danger-fg); font-weight: 600; }

/* Focus: always visible for keyboard users */
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 3px; }
h1:focus, main:focus { outline: none; }
h1:focus-visible { outline: 2px dashed var(--focus); outline-offset: 4px; }

.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 8px; top: -60px; z-index: 100;
  background: var(--primary); color: var(--on-primary); border: 0; padding: 8px 14px; border-radius: var(--radius-sm);
  font: inherit; font-weight: 600; cursor: pointer;
}
.skip-link:focus { top: 8px; }

/* ---- shell */
.app-header { background: var(--surface); border-bottom: 1px solid var(--border); }
.header-inner {
  max-width: 1180px; margin: 0 auto; padding: 10px var(--gutter);
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; color: var(--text); text-decoration: none; font-size: 1.05rem; }
.brand-mark {
  display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 8px;
  background: var(--primary); color: var(--on-primary); font-size: 0.78rem; letter-spacing: 0.02em;
}
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a { color: var(--text-muted); text-decoration: none; padding: 6px 10px; border-radius: var(--radius-sm); font-weight: 500; }
.nav a:hover { background: var(--surface-2); color: var(--text); }
.nav a[aria-current='page'] { color: var(--text); background: var(--surface-2); box-shadow: inset 0 -2px 0 var(--primary); }
.user { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.user-name { color: var(--text-muted); font-size: 0.9rem; }

.env-banner { background: var(--sandbox-bg); color: var(--sandbox-fg); border-bottom: 2px solid var(--sandbox-bd); }
.env-banner p { max-width: 1180px; margin: 0 auto; padding: 7px var(--gutter); font-size: 0.86rem; letter-spacing: 0.01em; }
.banner-note { font-weight: 400; }

.main { flex: 1; width: 100%; max-width: 1180px; margin: 0 auto; padding: 24px var(--gutter) 48px; }
.app-footer { border-top: 1px solid var(--border); color: var(--text-muted); font-size: 0.82rem; }
.app-footer p { max-width: 1180px; margin: 0 auto; padding: 14px var(--gutter); }

/* ---- cards & layout */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 20px 22px; margin: 0 0 18px;
}
.card > h2:first-child { margin-bottom: 0.8em; }
.title-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 0.6em; }
.title-row h1 { margin: 0; }
.crumbs { font-size: 0.86rem; color: var(--text-muted); margin-bottom: 0.4em; }
.slot:empty { display: none; }
.slot { margin: 10px 0; }
.button-row, .form-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin: 10px 0; }
.links a { white-space: nowrap; }
.footer-actions { margin-top: 8px; }
.switcher { max-width: 420px; }
.callout {
  border: 1px dashed var(--border-strong); border-radius: var(--radius); padding: 14px 16px; margin: 14px 0;
  background: var(--surface-2);
}
.callout p:last-of-type { margin-bottom: 10px; }

/* ---- landing */
.landing { max-width: 960px; margin: 24px auto 0; }
.landing h1 { font-size: 2rem; max-width: 22ch; }
.lead { font-size: 1.08rem; color: var(--text-muted); max-width: 64ch; }
.landing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; margin-top: 22px; }
.landing-card { display: flex; flex-direction: column; }
.landing-card .btn { margin-top: auto; align-self: flex-start; }
.ticks { padding-left: 1.1em; margin: 0 0 18px; color: var(--text-muted); }
.hero { text-align: left; padding: 28px; border-left: 4px solid var(--primary); }

/* ---- buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: inherit; font-weight: 600; font-size: 0.92rem; line-height: 1.2;
  padding: 9px 14px; min-height: 38px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--surface); color: var(--text);
  cursor: pointer; text-decoration: none; white-space: nowrap;
}
.btn:hover { background: var(--surface-2); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: var(--on-danger); }
.btn-danger:hover { background: var(--danger-hover); border-color: var(--danger-hover); }
.btn-small { padding: 5px 10px; min-height: 30px; font-size: 0.82rem; }
.btn-large { padding: 12px 20px; font-size: 1rem; min-height: 46px; }
.btn:disabled, .btn[aria-busy='true'] { opacity: 0.6; cursor: not-allowed; }
.btn[aria-busy='true'] { cursor: progress; }

/* ---- chips */
.chip {
  display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 0.76rem; font-weight: 600;
  border: 1px solid; line-height: 1.5; white-space: nowrap; vertical-align: middle; letter-spacing: 0.01em;
}
.chip-ok { background: var(--ok-bg); color: var(--ok-fg); border-color: var(--ok-bd); }
.chip-warn { background: var(--warn-bg); color: var(--warn-fg); border-color: var(--warn-bd); }
.chip-danger { background: var(--danger-bg); color: var(--danger-fg); border-color: var(--danger-bd); }
.chip-info { background: var(--info-bg); color: var(--info-fg); border-color: var(--info-bd); }
.chip-neutral { background: var(--neutral-bg); color: var(--neutral-fg); border-color: var(--neutral-bd); }
.chip-sandbox { background: var(--sandbox-bg); color: var(--sandbox-fg); border-color: var(--sandbox-bd); }
.chip-production { background: var(--prod-bg); color: var(--prod-fg); border-color: var(--prod-bd); }
.chips { display: inline-flex; flex-wrap: wrap; gap: 4px; }

.env-notice { border-radius: var(--radius-sm); padding: 8px 12px; font-size: 0.88rem; border: 1px solid; }
.env-notice-sandbox { background: var(--sandbox-bg); color: var(--sandbox-fg); border-color: var(--sandbox-bd); }
.env-notice-production { background: var(--prod-bg); color: var(--prod-fg); border-color: var(--prod-bd); }

/* ---- alerts */
.alert { border: 1px solid; border-radius: var(--radius-sm); padding: 12px 14px; margin: 10px 0; }
.alert p:last-child { margin-bottom: 0; }
.alert-title { font-weight: 600; }
.alert-meta { font-size: 0.85rem; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.alert-list { margin: 0 0 8px; padding-left: 1.2em; }
.alert-error { background: var(--danger-bg); color: var(--danger-fg); border-color: var(--danger-bd); }
.alert-success { background: var(--ok-bg); color: var(--ok-fg); border-color: var(--ok-bd); }
.alert-info { background: var(--info-bg); color: var(--info-fg); border-color: var(--info-bd); }
.alert-warn { background: var(--warn-bg); color: var(--warn-fg); border-color: var(--warn-bd); }
.alert a { color: inherit; font-weight: 600; }
.alert-items { list-style: none; margin: 0; padding: 0; }
.alert-item { padding: 10px 0; border-bottom: 1px solid var(--border); }
.alert-item:last-child { border-bottom: 0; }
.empty { color: var(--text-muted); font-style: italic; margin: 6px 0; }

/* ---- definition lists */
.props { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px 24px; margin: 0; }
.prop { min-width: 0; }
.prop dt { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-muted); font-weight: 600; margin-bottom: 2px; }
.prop dd { margin: 0; overflow-wrap: anywhere; }
.dialog .props { grid-template-columns: 1fr 1fr; }
.fingerprint { display: inline-flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.fingerprint code { word-break: break-all; }
.routes { list-style: none; padding: 0; margin: 0; }
.routes li { margin: 2px 0; }

/* ---- tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); margin: 8px 0; }
table { border-collapse: collapse; width: 100%; font-size: 0.9rem; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--surface-2); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-muted); white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: color-mix(in srgb, var(--surface-2) 55%, transparent); }

/* ---- forms */
.field { display: flex; flex-direction: column; gap: 4px; margin: 0 0 12px; min-width: 0; }
.field label { font-weight: 600; font-size: 0.88rem; }
.help { font-size: 0.84rem; color: var(--text-muted); margin: 2px 0 0; }
input, select, textarea {
  font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  padding: 8px 10px; min-height: 38px; width: 100%; max-width: 100%;
}
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid var(--focus); outline-offset: 0; border-color: var(--focus); }
input:user-invalid { border-color: var(--danger); }
input[type='checkbox'] { width: 18px; height: 18px; min-height: 0; margin: 2px 0 0; accent-color: var(--primary); flex: none; }
.mono { font-family: var(--mono); letter-spacing: 0.06em; text-transform: uppercase; }
.inline-form { display: flex; flex-wrap: wrap; gap: 0 14px; align-items: flex-end; }
.inline-form .field { flex: 1 1 220px; }
.inline-form .form-actions { margin: 0 0 12px; }
.inline-form .role-switch { flex-basis: 100%; }
.stack-form { max-width: 640px; }
fieldset { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px 14px; margin: 0 0 12px; }
legend { font-weight: 600; font-size: 0.88rem; padding: 0 6px; }
.check { display: flex; gap: 10px; align-items: flex-start; padding: 5px 0; }
.check label { font-weight: 400; }
.scope-preview { margin-top: 10px; padding: 10px 12px; background: var(--surface-2); border-radius: var(--radius-sm); font-size: 0.9rem; }
.scope-preview p { margin: 0 0 4px; }
.preview-title { font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-muted); }

/* ---- code */
.code-block {
  display: flex; align-items: flex-start; gap: 8px; background: var(--code-bg); color: var(--code-fg);
  border-radius: var(--radius-sm); padding: 10px 10px 10px 14px; margin: 8px 0; max-width: 100%;
}
.code-block pre { margin: 0; flex: 1; min-width: 0; overflow-x: auto; white-space: pre-wrap; word-break: break-all; padding-top: 4px; }
.code-block code { font-size: 0.86rem; }
.code-block .btn { background: transparent; color: var(--code-fg); border-color: #475569; flex: none; }
.code-block .btn:hover { background: #1e293b; }

/* ---- quickstart steps */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: none; }
.step { border: 1px solid var(--border); border-left: 4px solid var(--border-strong); border-radius: var(--radius-sm); padding: 14px 16px; margin: 0 0 12px; background: var(--surface); }
.step-done { border-left-color: var(--ok-bd); }
.step-progress { border-left-color: var(--warn-bd); }
.step-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.step-head h3 { margin: 0; flex: 1 1 auto; font-size: 1.02rem; }
.step-num {
  display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%;
  background: var(--surface-2); border: 1px solid var(--border-strong); font-weight: 700; font-size: 0.85rem; flex: none;
}
.step-done .step-num { background: var(--ok-bg); border-color: var(--ok-bd); color: var(--ok-fg); }
.step-progress .step-num { background: var(--warn-bg); border-color: var(--warn-bd); color: var(--warn-fg); }
.step-proves { font-size: 0.86rem; color: var(--text-muted); margin: 6px 0 8px 38px; }
.step-body { margin-left: 38px; }
.readiness { list-style: none; padding: 0; margin: 0; }
.readiness li { padding: 5px 0; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.readiness .mark { width: 1.2em; text-align: center; font-weight: 700; }
.readiness .ok .mark { color: var(--ok-fg); }
.readiness .fail { color: var(--text-muted); }
.readiness .current { color: var(--text); font-weight: 600; }
.action-list { list-style: none; padding: 0; margin: 0; }
.action-list li { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border); }
.action-list li:last-child { border-bottom: 0; }
.enroll-result { border: 1px solid var(--sandbox-bd); background: var(--sandbox-bg); color: var(--sandbox-fg); border-radius: var(--radius-sm); padding: 12px 14px; margin: 10px 0; }
.enroll-result .help { color: inherit; }

/* ---- operations */
.operation { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; margin: 12px 0; background: var(--surface-2); }
.operation h3 { margin-top: 0; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.stages { list-style: none; padding: 0; margin: 10px 0; display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.stage { background: var(--surface); border: 1px solid var(--border); border-top: 4px solid var(--border-strong); border-radius: var(--radius-sm); padding: 10px 12px; display: flex; flex-direction: column; gap: 2px; }
.stage-done { border-top-color: var(--ok-bd); }
.stage-warn { border-top-color: var(--danger-bd); }
.stage-wait { border-top-color: var(--warn-bd); }
.stage-label { font-weight: 700; }
.stage-state { font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); font-weight: 600; }
.stage-detail { font-size: 0.86rem; }

/* ---- scope diff */
.diff ul { list-style: none; padding: 0; margin: 6px 0; font-family: var(--mono); font-size: 0.86rem; }
.diff li { padding: 3px 8px; border-radius: 4px; margin: 2px 0; }
.diff-add { background: var(--ok-bg); color: var(--ok-fg); }
.diff-del { background: var(--danger-bg); color: var(--danger-fg); }
.diff-same { color: var(--text-muted); }
.scope-editor { margin-top: 14px; }
.scope-editor > div { margin-top: 12px; }

/* ---- billing */
.plan-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.plan { border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; display: flex; flex-direction: column; align-items: flex-start; }
.plan-current { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.plan h3 { margin-top: 0; }
.price { font-size: 1.6rem; font-weight: 700; margin: 0 0 4px; }
.per { font-size: 0.9rem; font-weight: 500; color: var(--text-muted); }
.plan .btn { margin-top: 8px; }
.meter-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
meter { width: 180px; height: 14px; }

/* ---- dialog */
.dialog {
  border: 1px solid var(--border); border-radius: var(--radius); padding: 0; background: var(--surface); color: var(--text);
  width: min(560px, calc(100vw - 2 * var(--gutter))); max-height: calc(100vh - 32px); box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}
.dialog::backdrop { background: rgba(10, 15, 25, 0.55); }
.dialog-form { padding: 22px; }
.dialog-form h2 { font-size: 1.15rem; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.dialog .field textarea { min-height: 60px; }

/* ---- responsive */
@media (max-width: 720px) {
  body { font-size: 15px; }
  h1 { font-size: 1.35rem; }
  .landing h1 { font-size: 1.55rem; }
  .card { padding: 16px; }
  .main { padding-top: 16px; }
  .user { margin-left: 0; width: 100%; justify-content: space-between; }
  .step-proves, .step-body { margin-left: 0; }
  .dialog .props { grid-template-columns: 1fr; }
  /* Stack table rows as cards on narrow screens */
  .table-wrap { border: 0; overflow: visible; }
  .table-wrap table, .table-wrap tbody, .table-wrap tr, .table-wrap td { display: block; width: 100%; }
  .table-wrap thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .table-wrap tr { border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 10px; padding: 6px 0; background: var(--surface); }
  .table-wrap td { border: 0; padding: 4px 12px; display: grid; grid-template-columns: 40% 1fr; gap: 8px; }
  .table-wrap td::before { content: attr(data-label); font-weight: 600; font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-muted); }
  .btn { white-space: normal; }
  .button-row .btn, .form-actions .btn { flex: 1 1 auto; }
}

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

@media (forced-colors: active) {
  .chip, .btn, .step, .stage { border: 1px solid CanvasText; }
}