/* arch-experience.css — additive layer for the Arch Public Experience surfaces.
   Composes WITH the sanctioned root sheets (jpt-shell.css + arch-host.css): the
   preserved dispatch/splash keeps its own styling; the identity header, public
   status strip and Application Dock float above it. Accessibility: visible focus,
   reduced motion, 44px touch targets, WCAG-contrast tokens, mobile-first. */
:root {
  --arch-bar-bg: rgba(12, 14, 18, 0.72);
  --arch-bar-fg: #f2f4f8;
  --arch-bar-muted: #aab3c0;
  --arch-line: rgba(255, 255, 255, 0.14);
  --arch-accent: #7cc4ff;
  --arch-ok: #34c98e;
  --arch-warn: #e8b64c;
  --arch-err: #ef6363;
  --arch-card-bg: rgba(20, 23, 30, 0.86);
  --arch-radius: 12px;
}
@media (prefers-color-scheme: light) {
  :root {
    --arch-bar-bg: rgba(250, 251, 253, 0.82);
    --arch-bar-fg: #16202c;
    --arch-bar-muted: #4d5a6a;
    --arch-line: rgba(10, 20, 35, 0.12);
    --arch-card-bg: rgba(255, 255, 255, 0.92);
    --arch-accent: #0b6bcb;
  }
}

/* ---------- a11y primitives ---------- */
.arch-skip-link {
  position: fixed; top: -48px; left: 12px; z-index: 300;
  background: var(--arch-accent); color: #06111c; padding: 10px 16px;
  border-radius: 0 0 10px 10px; font: 600 14px/1.2 system-ui, sans-serif;
  text-decoration: none; transition: top 120ms ease;
}
.arch-skip-link:focus { top: 0; }
.arch-visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
[data-arch-region] a:focus-visible, [data-arch-region] button:focus-visible,
.arch-surface-page a:focus-visible, .arch-surface-page button:focus-visible,
.arch-auth-form input:focus-visible {
  outline: 3px solid var(--arch-accent); outline-offset: 2px; border-radius: 6px;
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

/* ---------- identity header ---------- */
.arch-region-identity {
  position: fixed; top: 0; left: 0; right: 0; z-index: 120;
  display: flex; align-items: center; gap: 14px; padding: 10px 16px;
  background: var(--arch-bar-bg); color: var(--arch-bar-fg);
  border-bottom: 1px solid var(--arch-line);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  font: 500 14px/1.3 system-ui, -apple-system, "Segoe UI", sans-serif;
}
.arch-identity-home { display: inline-flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; min-height: 44px; }
.arch-identity-logo { border-radius: 10px; display: block; }
.arch-identity-name { font-weight: 650; letter-spacing: 0.01em; }
.arch-identity-time { margin-left: 4px; color: var(--arch-bar-muted); font-variant-numeric: tabular-nums; }
.arch-region-system-actions { margin-left: auto; display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.arch-sysnav-link {
  display: inline-flex; align-items: center; min-height: 40px; padding: 6px 12px;
  color: var(--arch-bar-fg); text-decoration: none; border-radius: 9px;
  border: 1px solid transparent; background: transparent; font: inherit; cursor: pointer;
}
.arch-sysnav-link:hover { border-color: var(--arch-line); }
.arch-sysnav-link.is-active { border-color: var(--arch-accent); color: var(--arch-accent); }
.arch-sysnav-authform { display: inline-flex; margin: 0; }

/* ---------- public status strip + dock (bottom stack) ---------- */
.arch-region-status {
  position: fixed; left: 0; right: 0; bottom: 78px; z-index: 110;
  display: flex; justify-content: center; pointer-events: none;
}
.arch-status-line {
  pointer-events: auto; display: inline-flex; align-items: center; gap: 12px;
  padding: 6px 14px; border-radius: 999px; text-decoration: none;
  background: var(--arch-bar-bg); color: var(--arch-bar-muted);
  border: 1px solid var(--arch-line); font: 500 12px/1.2 system-ui, sans-serif;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.arch-status-seg { display: inline-flex; align-items: center; gap: 6px; }
.arch-status-seg::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--arch-warn); }
.arch-status-seg[data-arch-status-state="success"]::before { background: var(--arch-ok); }
.arch-status-seg[data-arch-status-state="error"]::before { background: var(--arch-err); }
.arch-status-verified { color: var(--arch-bar-muted); }
.arch-status-unavailable { text-align: center; color: var(--arch-bar-muted); font: 500 12px/1.2 system-ui, sans-serif; }

.arch-region-dock {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 120;
  background: var(--arch-bar-bg); border-top: 1px solid var(--arch-line);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px));
}
.arch-dock-list { list-style: none; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin: 0; padding: 0; }
.arch-dock-item {
  display: inline-flex; align-items: center; gap: 9px; min-height: 44px; padding: 7px 14px;
  border-radius: var(--arch-radius); border: 1px solid var(--arch-line);
  color: var(--arch-bar-fg); text-decoration: none; font: 500 13px/1.2 system-ui, sans-serif;
  background: transparent;
}
a.arch-dock-item:hover { border-color: var(--arch-accent); }
.arch-dock-item.is-inactive { opacity: 0.55; }
.arch-dock-icon { border-radius: 7px; display: block; }
.arch-dock-icon-fallback { font-size: 17px; line-height: 1; opacity: 0.8; }
.arch-dock-state {
  font: 600 10px/1 system-ui, sans-serif; text-transform: uppercase; letter-spacing: 0.06em;
  padding: 3px 7px; border-radius: 999px; border: 1px solid var(--arch-line); color: var(--arch-bar-muted);
}
.arch-dock-state[data-arch-dock-state="available"] { color: var(--arch-ok); border-color: color-mix(in srgb, var(--arch-ok) 45%, transparent); }
.arch-dock-state[data-arch-dock-state="maintenance"], .arch-dock-state[data-arch-dock-state="degraded"] { color: var(--arch-warn); border-color: color-mix(in srgb, var(--arch-warn) 45%, transparent); }
.arch-dock-state[data-arch-dock-state="disabled"], .arch-dock-state[data-arch-dock-state="denied"] { color: var(--arch-err); border-color: color-mix(in srgb, var(--arch-err) 45%, transparent); }
.arch-dock-ext { color: var(--arch-bar-muted); font-size: 12px; }
.arch-dock-empty { text-align: center; margin: 4px 0; color: var(--arch-bar-muted); font: 500 13px/1.3 system-ui, sans-serif; }

/* keep the preserved dispatch clear of the fixed bars */
.arch-region-content { min-height: 100vh; box-sizing: border-box; padding: 76px 0 150px; }
.arch-noscript-note {
  position: fixed; top: 64px; left: 50%; transform: translateX(-50%); z-index: 115;
  margin: 8px; padding: 8px 14px; border-radius: 10px; max-width: 640px;
  background: var(--arch-card-bg); color: var(--arch-bar-fg);
  border: 1px solid var(--arch-line); font: 500 13px/1.4 system-ui, sans-serif;
}

/* ---------- system / recovery surface pages ---------- */
.arch-surface-page {
  max-width: 760px; margin: 0 auto; padding: 96px 20px 170px;
  color: var(--arch-bar-fg); font: 400 15px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
}
[data-arch-surface]:not([data-arch-surface="root_reception"]) body, body[data-arch-surface]:not([data-arch-surface="root_reception"]) { background: #0d1015; }
@media (prefers-color-scheme: light) { body[data-arch-surface]:not([data-arch-surface="root_reception"]) { background: #eef1f5; } }
.arch-surface-title { font-size: 26px; font-weight: 700; letter-spacing: -0.01em; margin: 0 0 10px; }
.arch-surface-lead { color: var(--arch-bar-fg); font-size: 16px; margin: 0 0 14px; }
.arch-surface-note { color: var(--arch-bar-muted); font-size: 13.5px; }
.arch-degraded-note { color: var(--arch-warn); }
.arch-flash { color: var(--arch-err); font-weight: 600; }
.arch-card-list { list-style: none; margin: 14px 0; padding: 0; display: grid; gap: 12px; }
.arch-card {
  background: var(--arch-card-bg); border: 1px solid var(--arch-line);
  border-radius: var(--arch-radius); padding: 16px 18px;
}
.arch-card-title { font-size: 17px; font-weight: 650; margin: 0 0 6px; }
.arch-card-meta { color: var(--arch-bar-muted); font-size: 12.5px; margin: 6px 0 0; }
.arch-card code { font: 500 12px/1 ui-monospace, "Cascadia Mono", monospace; background: rgba(127, 127, 127, 0.14); padding: 2px 6px; border-radius: 6px; }
.arch-excluded { margin-top: 26px; color: var(--arch-bar-muted); font-size: 13px; }
.arch-excluded h2 { font-size: 14px; }
.arch-excluded ul { padding-left: 18px; }

.arch-btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px;
  padding: 9px 18px; border-radius: 10px; border: 1px solid var(--arch-accent);
  background: var(--arch-accent); color: #06111c; font: 600 14px/1.2 system-ui, sans-serif;
  text-decoration: none; cursor: pointer;
}
.arch-btn-ghost { background: transparent; color: var(--arch-accent); }
.arch-recovery-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.arch-auth-form { display: grid; gap: 12px; max-width: 380px; margin: 16px 0; }
.arch-field { display: grid; gap: 5px; font: 500 13px/1.3 system-ui, sans-serif; color: var(--arch-bar-muted); }
.arch-field input {
  min-height: 44px; padding: 8px 12px; border-radius: 10px; font: 400 15px/1.3 system-ui, sans-serif;
  border: 1px solid var(--arch-line); background: transparent; color: var(--arch-bar-fg);
}

/* ---------- mobile ---------- */
@media (max-width: 560px) {
  .arch-identity-time { display: none; }
  .arch-region-identity { flex-wrap: wrap; gap: 6px; padding: 8px 10px; }
  .arch-region-system-actions { margin-left: 0; width: 100%; justify-content: space-between; }
  .arch-region-status { bottom: 96px; }
  .arch-region-content { padding-top: 108px; }
  .arch-surface-page { padding-top: 128px; }
  .arch-dock-list { justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 2px; }
}