:root { --control-height: 48px; --control-border: 2px solid var(--ink); --control-font: 700 0.9375rem/1.4 'Noto Sans', sans-serif; --control-padding: 10px 16px; --control-focus: 3px solid var(--people); }
.ui-control-group { display: flex; align-items: flex-end; flex-wrap: wrap; gap: 12px; }
.ui-label { display: block; margin-bottom: 6px; font-size: 0.875rem; font-weight: 700; color: var(--ink); }
.ui-select { min-width: 112px; }
.button, .ui-button, .ui-select-trigger {
  appearance: none; border-radius: 0; min-height: var(--control-height);
  padding: var(--control-padding); border: var(--control-border);
  background: var(--white); color: var(--ink); font: var(--control-font); cursor: pointer;
}
.button, .ui-button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; text-align: center; text-decoration: none; }
:is(.button, .ui-button).primary { background: var(--ink); color: var(--white); }
.button.header-cta { background: var(--people); color: var(--white); border-color: var(--people); }
.ui-select-trigger { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; font-weight: 400; }
.ui-select-trigger svg { display: block; }
.ui-button:hover:not(:disabled), .ui-select-trigger:hover:not(:disabled) { background: var(--people-tint); }
.ui-button[aria-pressed=true] { background: var(--people); color: white; }
.ui-button:disabled, .ui-select-trigger:disabled { opacity: .5; cursor: not-allowed; }
.ui-select-positioner { z-index: 100; }
.ui-select-content { min-width: var(--reference-width); max-height: min(320px, var(--available-height)); overflow-y: auto; overscroll-behavior: contain; padding: 4px; background: white; border: var(--control-border); box-shadow: 0 8px 24px #11171d26; }
.ui-select-item { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 44px; padding: 10px 12px; cursor: pointer; color: var(--ink); font-size: 0.9375rem; }
.ui-select-item[data-state=checked] { font-weight: 700; }
.ui-select-item[data-highlighted] { background: var(--people-tint); outline: 2px solid var(--people); outline-offset: -2px; }
.ui-select-content:focus-visible { outline: 2px solid var(--people); outline-offset: 2px; }
:is(.ui-button, .ui-select-trigger, .button, .letter-support input):focus-visible { outline: var(--control-focus); outline-offset: 3px; box-shadow: 0 0 0 6px var(--paper); }
@media(max-width:560px) { .viewer-toolbar { gap: 20px; } .ui-control-group { width: 100%; gap: 8px; } .ui-select { flex: 1; min-width: 104px; } .ui-control-group > .ui-button { flex-shrink: 1; } }
@media(max-width:560px) {
  .reader-actions { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .reader-actions .button { min-width: 0; }
}

/* Shared interaction states for both static markup and Ark UI. */
a[href], button, summary, .ui-select-trigger {
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
  -webkit-tap-highlight-color: #e9e0ff;
}
a[href]:not(.button):not(.brand) { text-underline-offset: .22em; }
a[href]:not(.button):not(.brand):visited { color: #5930bb; }
a[href]:not(.button):hover { color: var(--ink); background-color: var(--people-tint); text-decoration: underline; text-decoration-thickness: 2px; }
a[href]:not(.button):active { color: white; background-color: var(--people); text-decoration: underline; }
.button:hover:not(:disabled), .ui-button:hover:not(:disabled), .ui-select-trigger:hover:not(:disabled) {
  background: var(--people-tint); color: var(--ink); border-color: var(--people);
}
:is(.button, .ui-button).primary:hover:not(:disabled), .button.header-cta:hover:not(:disabled), .ui-button[aria-pressed=true]:hover:not(:disabled) {
  background: var(--people); color: white; border-color: var(--people); box-shadow: inset 0 -3px 0 #11171d55;
}
.button.header-cta:hover:not(:disabled), .ui-button[aria-pressed=true]:hover:not(:disabled) { background: #5930bb; border-color: #5930bb; }
.button:active:not(:disabled), .ui-button:active:not(:disabled), .ui-select-trigger:active:not(:disabled) {
  background: var(--ink); color: white; border-color: var(--ink); box-shadow: inset 0 0 0 2px var(--people);
}
.ui-select-trigger[data-state=open] { background: var(--people-tint); border-color: var(--people); box-shadow: inset 0 -2px 0 var(--people); }
.ui-button[aria-pressed=true] { box-shadow: inset 0 -3px 0 #11171d55; }
summary:hover { background-color: var(--people-tint); text-decoration: underline; text-underline-offset: .22em; }
summary:active { background-color: var(--people); color: white; }
details[open] > summary { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: .22em; }
:is(a[href],button,summary,.ui-select-trigger):focus-visible {
  outline: 3px solid var(--people); outline-offset: 4px; box-shadow: 0 0 0 4px var(--paper);
}
.button:disabled, .ui-button:disabled, .ui-select-trigger:disabled {
  background: #e5e7e9; color: #48545f; border-color: #8a9198; box-shadow: none; opacity: 1; cursor: not-allowed;
}
button[aria-busy=true]:disabled { cursor: progress; }
@media (prefers-reduced-motion: reduce) {
  a[href], button, summary, .ui-select-trigger { transition: none; }
}
:is(.button, .ui-button).primary:active:not(:disabled), .button.header-cta:active:not(:disabled), .ui-button[aria-pressed=true]:active:not(:disabled) {
  background: var(--ink); color: white; border-color: var(--ink); box-shadow: inset 0 0 0 2px var(--people);
}
.share-panel textarea { width: 100%; padding: 16px; margin-bottom: 16px; border: 1px solid var(--ink); background: white; color: var(--ink); font: 1rem/1.6 'Noto Sans', sans-serif; resize: vertical; }
.share-panel textarea:focus-visible { outline: var(--control-focus); outline-offset: 4px; }
.share-platform-help { border-top: 1px solid #11171d40; padding-top: 24px; margin: 8px 0 24px; }
.share-platform-help h3 { margin-top: 20px; }
.share-platform-help h3:first-child { margin-top: 0; }
.share-platform-help p { font-size: 0.9375rem; }
.share-platform-help > a { display: inline-flex; min-height: 44px; align-items: center; margin-right: 16px; font-size: 0.9375rem; text-underline-offset: 4px; }
.share-link-copy { display: flex; flex-wrap: wrap; gap: 12px; }
.share-link-copy input { flex: 1; min-width: 180px; }

@media(max-width:560px) { .share-actions { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; } .share-actions .button { width: 100%; } }

.form-error-summary { border: 2px solid var(--ink); padding: 20px; margin: 0 0 24px; background: var(--white); }
.form-error-summary h2 { margin: 0 0 12px; font-size: 1.25rem; }
.form-error-summary ul { margin: 0; padding-left: 24px; }
.form-error-summary a { display: inline-block; padding: 8px 0; }
.field-error { margin: 8px 0 16px; font-weight: 700; color: var(--ink); }
[aria-invalid=true] { border: 3px solid var(--ink) !important; }
:is(.form-error-summary, #signature-status, #signature-success):focus { outline: 3px solid var(--people); outline-offset: 4px; }
.button.header-cta:focus-visible { outline-color: var(--ink); }
@media(forced-colors:active) { .button.header-cta:focus-visible { outline-color: Highlight; } }

.ui-select-positioner:has(> .ui-select-content[hidden]) { display: none; }

/* Reader controls: two labelled sets with a consistent three-column rhythm. */
.viewer-toolbar { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 20px 32px; padding: 24px; border-bottom: 2px solid var(--ink); }
.viewer-return { grid-column: 1 / -1; justify-self: start; }
.viewer-control-set { min-width: 0; margin: 0; padding: 0; border: 0; }
.viewer-control-set legend { padding: 0; margin-bottom: 10px; font-size: 1rem; font-weight: 700; }
.viewer-control-row { display: grid; grid-template-columns: 48px minmax(0,1fr) 48px; align-items: stretch; gap: 8px; }
.viewer-control-row .ui-select { min-width: 0; }
.viewer-control-row .ui-select-trigger { height: 100%; gap: 8px; font-weight: 700; }
.viewer-control-row .ui-select-trigger > :first-child { min-width: 0; }
.viewer-control-row .ui-label { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.viewer-control-row > .ui-button { padding: 10px; }
.viewer-control-row svg { flex-shrink: 0; }
.viewer-symbol { font-size: 1.5rem; line-height: 1; }
.viewer-secondary-actions { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0,1fr); gap: 12px; padding-top: 16px; border-top: 1px solid #11171d40; }
@media(max-width:600px) { .viewer-toolbar { grid-template-columns: minmax(0,1fr); gap: 20px; padding: 16px; } }

/* Static article metadata, rendered through the Ark UI factory. */
.ui-article-tags { display:flex; flex-wrap:wrap; gap:8px; padding:0; margin:0 0 24px; list-style:none; }
.ui-article-tag { display:block; max-width:100%; padding:4px 12px; border:1px solid currentColor; border-radius:4px; background:var(--system-tint); color:var(--ink); font-size:.875rem; font-weight:700; line-height:1.5; overflow-wrap:anywhere; }