/* styles/shell.css - the one stylesheet for every brand and placement. Every color, font and
   size reads a token set by ui/theme.js from the validated presentation. Inside the iframe no
   host rule can reach these elements; in shadow_dom mode the :host block scopes them. */
:host, .pa-root { all: initial; display: block; box-sizing: border-box; }
.pa-root { font-family: var(--pa-font, system-ui, sans-serif); font-size: var(--pa-base, 16px); line-height: 1.5; color: var(--pa-on-surface, #111); background: var(--pa-surface, #fff); height: 100%; min-height: 100%; }
.pa-root *, .pa-root *::before, .pa-root *::after { box-sizing: border-box; }
.pa-root :focus-visible { outline: 3px solid var(--pa-focus, #00f); outline-offset: 2px; }
.pa-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; }
.pa-dialog { display: flex; flex-direction: column; height: 100dvh; max-height: 100dvh; padding: env(safe-area-inset-top, 0) env(safe-area-inset-right, 0) env(safe-area-inset-bottom, 0) env(safe-area-inset-left, 0); overflow: hidden; }
.pa-header { flex: 0 0 auto; padding: 12px 16px; border-bottom: 1px solid color-mix(in srgb, var(--pa-on-surface) 20%, transparent); }
.pa-h1 { font-size: 1.125em; font-weight: 700; margin: 0 0 4px; }
.pa-h2 { font-size: 1.05em; font-weight: 700; margin: 0 0 8px; }
.pa-context { margin: 0; font-size: 0.9em; }
.pa-context-line { display: block; }
.pa-disclosure { margin: 8px 0 0; padding: 8px 10px; border: 1px solid color-mix(in srgb, var(--pa-on-surface) 40%, transparent); border-radius: 6px; font-size: 0.9em; }
.pa-disclosure-text { margin: 0; }
.pa-contact { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 8px; font-size: 0.95em; }
.pa-controls { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.pa-body { flex: 1 1 auto; min-height: 0; display: flex; flex-direction: column; }
.pa-log { flex: 1 1 auto; min-height: 0; overflow-y: auto; overflow-x: hidden; padding: 12px 16px; overflow-wrap: anywhere; word-break: break-word; }
.pa-msg { margin: 0 0 12px; padding: 10px 12px; border-radius: 10px; max-width: 100%; }
.pa-msg-visitor { background: var(--pa-primary); color: var(--pa-on-primary); margin-inline-start: 15%; }
.pa-msg-assistant { border: 1px solid color-mix(in srgb, var(--pa-on-surface) 25%, transparent); margin-inline-end: 15%; }
.pa-msg-status { border: 1px dashed color-mix(in srgb, var(--pa-on-surface) 40%, transparent); font-size: 0.95em; }
.pa-msg-who { margin: 0 0 4px; font-weight: 700; font-size: 0.85em; }
.pa-msg-class { margin: 0 0 4px; font-size: 0.85em; font-style: italic; }
.pa-msg-text { margin: 0; white-space: pre-wrap; }
.pa-citations { margin: 6px 0 0; padding-inline-start: 1.2em; font-size: 0.85em; }
.pa-suggestions { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 16px 8px; }
.pa-composer { flex: 0 0 auto; padding: 8px 16px 12px; border-top: 1px solid color-mix(in srgb, var(--pa-on-surface) 20%, transparent); display: grid; gap: 6px; }
.pa-composer-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.pa-label { font-weight: 600; display: block; }
.pa-hint { margin: 0; font-size: 0.85em; }
.pa-input { width: 100%; font: inherit; color: inherit; background: var(--pa-surface); border: 2px solid color-mix(in srgb, var(--pa-on-surface) 60%, transparent); border-radius: 6px; padding: 8px 10px; min-height: var(--pa-target, 44px); }
.pa-checkbox { width: 24px; height: 24px; margin: 0 8px 0 0; vertical-align: middle; }
.pa-checkbox-label { display: inline; }
.pa-btn { font: inherit; cursor: pointer; border-radius: 8px; border: 2px solid var(--pa-primary); background: var(--pa-surface); color: var(--pa-on-surface); min-height: var(--pa-target, 44px); min-width: var(--pa-target, 44px); padding: 8px 14px; }
.pa-btn-primary { background: var(--pa-primary); color: var(--pa-on-primary); }
.pa-btn-secondary { border-color: var(--pa-on-surface); }
.pa-btn-small { min-height: 32px; padding: 4px 10px; font-size: 0.9em; }
.pa-btn-chip { border-radius: 16px; font-size: 0.9em; }
.pa-btn[disabled] { opacity: 0.6; cursor: not-allowed; }
.pa-view { flex: 1 1 auto; min-height: 0; overflow-y: auto; padding: 12px 16px; }
.pa-form { display: grid; gap: 12px; }
.pa-field { display: grid; gap: 4px; }
.pa-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.pa-error { color: var(--pa-on-surface); font-weight: 600; border-inline-start: 4px solid var(--pa-primary); padding-inline-start: 8px; margin: 0; }
.pa-status { margin: 12px 0 0; font-weight: 600; }
.pa-meta { display: grid; grid-template-columns: max-content 1fr; gap: 2px 12px; font-size: 0.9em; margin: 8px 0; }
.pa-meta dt { font-weight: 600; } .pa-meta dd { margin: 0; }
/* Links are targets too: inline-block with a 24 px minimum box (WCAG 2.2 target size), found by the real-browser axe run. */
.pa-link { color: inherit; text-decoration: underline; text-underline-offset: 2px; display: inline-block; min-height: 24px; min-width: 24px; padding: 2px 4px; margin: 0 -4px; line-height: 20px; }
/* Record PA-LRN (O-5): the DB-IP attribution beside the Privacy Notice link; secondary, same link styling. */
.pa-credit { font-size: 0.9em; }
.pa-sep { padding: 0 2px; }
.pa-progress { font-size: 0.9em; padding: 0 16px 4px; }
.pa-scroll-latest { position: sticky; bottom: 4px; margin-inline-start: auto; display: block; }
.pa-feedback { display: flex; gap: 6px; margin-top: 6px; }
.pa-text { margin: 0 0 8px; }
@media (max-width: 480px) { .pa-msg-visitor, .pa-msg-assistant { margin-inline-start: 0; margin-inline-end: 0; } .pa-header { padding: 10px 12px; } .pa-log, .pa-composer, .pa-view, .pa-suggestions { padding-inline: 12px; } }
@media (prefers-reduced-motion: reduce) { .pa-root * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }
@media (forced-colors: active) { .pa-btn, .pa-input, .pa-msg { border: 2px solid ButtonText; } .pa-btn-primary { forced-color-adjust: none; background: ButtonText; color: ButtonFace; } .pa-root :focus-visible { outline: 3px solid Highlight; } }