/* Hallmark · component scope: shared review controls · tone: restrained operational · anchor hue: neutral
 * Pre-emit review: P4 H4 E4 S4 R5 V3. In-flow contextual panel; page design remains outside this foundation. */
:root {
  color-scheme: light;
  --review-font: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --review-ink: #171717;
  --review-muted: #525252;
  --review-paper: #ffffff;
  --review-surface: #f5f5f5;
  --review-rule: #737373;
  --review-soft-rule: #d4d4d4;
  --review-focus: #171717;
  --review-space-xs: 0.25rem;
  --review-space-sm: 0.5rem;
  --review-space-md: 1rem;
  --review-space-lg: 1.5rem;
  --review-space-xl: 2rem;
  --review-space-2xl: 3rem;
  --review-radius: 0.25rem;
}

* { box-sizing: border-box; }
html { color: var(--review-ink); background: var(--review-paper); font-family: var(--review-font); }
body { margin: 0; font-size: 1rem; line-height: 1.5; }
button, input, textarea, select { font: inherit; }
button, input, textarea, select { color: var(--review-ink); }
button { cursor: pointer; }
button, a, input, textarea { -webkit-tap-highlight-color: transparent; }
button:disabled { cursor: not-allowed; opacity: 0.6; }
a { color: inherit; text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
::selection { color: var(--review-paper); background: var(--review-ink); }
:focus-visible { outline: 3px solid var(--review-focus); outline-offset: 3px; }
[hidden] { display: none !important; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-style: normal; overflow-wrap: anywhere; min-width: 0; }
h1 { font-size: 2.25rem; line-height: 1.2; font-weight: 650; letter-spacing: -0.025em; }
h2 { font-size: 1.5rem; line-height: 1.3; font-weight: 650; letter-spacing: -0.015em; }
h3 { font-size: 1rem; line-height: 1.5; font-weight: 650; }
p { max-width: 70ch; }
p + p { margin-top: var(--review-space-md); }

.review-site { max-width: 88rem; margin-inline: auto; padding: var(--review-space-2xl) var(--review-space-lg); }
.standalone-page { max-width: 48rem; }
.standalone-page h1 { margin-bottom: var(--review-space-lg); }
.page-heading { margin-bottom: var(--review-space-2xl); }
.page-heading p { margin-top: var(--review-space-sm); color: var(--review-muted); }
.review-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--review-space-2xl); align-items: start; }
.review-content { min-width: 0; }
.review-content section { padding-block: var(--review-space-lg); }
.review-content section:first-child { padding-top: 0; }
.review-content h2 { margin-bottom: var(--review-space-md); }
.review-anchor { position: relative; scroll-margin-top: var(--review-space-lg); }
.review-anchor.is-commentable { cursor: crosshair; outline: 1px dashed var(--review-rule); outline-offset: 8px; }
.review-anchor.is-selected { outline: 2px solid var(--review-ink); outline-offset: 8px; }
.section-comment { display: inline-flex; margin-top: var(--review-space-lg); }
.review-pin-layer { position: absolute; inset: 0; pointer-events: none; }
.review-pin { position: absolute; z-index: 2; display: grid; place-items: center; min-width: 44px; height: 44px; padding: 4px 8px; transform: translate(-50%, -50%); border: 2px solid var(--review-paper); border-radius: 50%; background: var(--review-ink); color: var(--review-paper); font-weight: 650; font-size: 0.875rem; line-height: 1; pointer-events: auto; box-shadow: 0 0 0 1px var(--review-ink); }
.review-pin:hover { background: var(--review-muted); }
.review-pin[aria-current="true"] { box-shadow: 0 0 0 3px var(--review-ink); }
.review-pin.is-resolved { background: var(--review-paper); color: var(--review-ink); border-color: var(--review-ink); box-shadow: none; }
.review-pin.is-draft { width: auto; border-radius: var(--review-radius); background: var(--review-paper); color: var(--review-ink); border-color: var(--review-ink); box-shadow: none; }
.review-pin.is-resolved:hover, .review-pin.is-draft:hover { background: var(--review-surface); }
.review-pin:active { box-shadow: 0 0 0 3px var(--review-ink); }

.review-panel { min-width: 0; border-top: 1px solid var(--review-rule); padding-top: var(--review-space-lg); }
.review-panel > h2 { margin-bottom: var(--review-space-md); }
.review-note { font-size: 0.875rem; line-height: 1.5; color: var(--review-muted); overflow-wrap: anywhere; }
.review-mode { display: inline-flex; flex-wrap: wrap; gap: var(--review-space-sm); margin-block: var(--review-space-lg) var(--review-space-md); }
.review-button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0.625rem 0.875rem; border: 1px solid var(--review-rule); border-radius: var(--review-radius); background: var(--review-paper); color: var(--review-ink); text-decoration: none; font-weight: 600; line-height: 1.35; text-align: center; }
.review-button:hover:not(:disabled) { background: var(--review-surface); border-color: var(--review-ink); }
.review-button:active:not(:disabled) { background: var(--review-soft-rule); }
.review-button[aria-pressed="true"], .review-button.is-primary { color: var(--review-paper); background: var(--review-ink); border-color: var(--review-ink); }
.review-button[aria-pressed="true"]:hover:not(:disabled), .review-button.is-primary:hover:not(:disabled) { background: var(--review-muted); }
.review-button.is-primary:active:not(:disabled) { background: var(--review-ink); }
.review-button.is-quiet { font-size: 0.875rem; font-weight: 500; }
.review-guidance { margin-bottom: var(--review-space-md); }
.review-feedback { margin-block: var(--review-space-md); min-height: 1.5rem; overflow-wrap: anywhere; }
.review-feedback[data-kind="error"] { font-weight: 600; }
.review-feedback[data-kind="error"]::before { content: "Error: "; }
.review-feedback[data-kind="success"]::before { content: "Saved. "; font-weight: 600; }
.review-toolbar { display: flex; flex-wrap: wrap; gap: var(--review-space-sm) var(--review-space-md); align-items: center; margin-block: var(--review-space-lg); }
.review-filter { display: inline-flex; align-items: center; gap: var(--review-space-sm); min-height: 44px; font-size: 0.875rem; }
.review-filter input { width: 20px; height: 20px; margin: 0; accent-color: var(--review-ink); }
.review-thread-count { margin-bottom: var(--review-space-md); font-weight: 650; }
.review-thread-list { list-style: none; padding: 0; margin: 0; }
.review-thread { padding-block: var(--review-space-lg); border-top: 1px solid var(--review-soft-rule); min-width: 0; }
.review-thread.is-selected { border-top-color: var(--review-ink); }
.review-thread-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: var(--review-space-xs) var(--review-space-sm); }
.review-thread-meta { font-size: 0.875rem; line-height: 1.5; color: var(--review-muted); margin-top: var(--review-space-xs); }
.review-state { font-size: 0.875rem; font-weight: 600; }
.review-comment-body { white-space: pre-wrap; overflow-wrap: anywhere; margin-top: var(--review-space-sm); }
.review-thread-location { margin-top: var(--review-space-md); }
.review-thread-actions { display: flex; flex-wrap: wrap; gap: var(--review-space-sm); margin-top: var(--review-space-md); }
.review-replies { list-style: none; padding: 0 0 0 var(--review-space-md); margin: var(--review-space-lg) 0 0; border-left: 1px solid var(--review-soft-rule); }
.review-reply + .review-reply { margin-top: var(--review-space-lg); }
.review-reply-author { font-weight: 650; overflow-wrap: anywhere; }
.review-composer { margin-block: var(--review-space-lg); padding-block: var(--review-space-lg); border-block: 1px solid var(--review-rule); }
.review-composer h3 { margin-bottom: var(--review-space-sm); }
.review-field { margin-top: var(--review-space-md); }
.review-field label { display: block; font-weight: 600; margin-bottom: var(--review-space-sm); }
.review-field input, .review-field textarea { display: block; width: 100%; min-height: 44px; border: 1px solid var(--review-rule); border-radius: var(--review-radius); padding: 0.625rem 0.75rem; background: var(--review-paper); caret-color: var(--review-ink); }
.review-field textarea { min-height: 8rem; resize: vertical; }
.review-field input[readonly], .review-field textarea[readonly] { background: var(--review-surface); }
.review-field input:hover:not([readonly]), .review-field textarea:hover:not([readonly]) { border-color: var(--review-ink); }
.review-field input[aria-invalid="true"], .review-field textarea[aria-invalid="true"] { border-color: var(--review-ink); outline: 2px solid var(--review-ink); outline-offset: 1px; }
.review-field-help { font-size: 0.875rem; color: var(--review-muted); margin-top: var(--review-space-xs); }
.review-form-actions { display: flex; flex-wrap: wrap; gap: var(--review-space-sm); margin-top: var(--review-space-md); }
.review-draft-summary { display: flex; flex-wrap: wrap; align-items: center; gap: var(--review-space-sm) var(--review-space-md); margin-block: var(--review-space-md); }
.skip-link { position: absolute; left: var(--review-space-md); top: var(--review-space-md); z-index: 10; transform: translateY(-200%); background: var(--review-paper); color: var(--review-ink); padding: var(--review-space-sm) var(--review-space-md); }
.skip-link:focus { transform: none; }

@media (min-width: 64rem) {
  .review-layout { grid-template-columns: minmax(0, 1fr) minmax(22rem, 26rem); gap: 4rem; }
  .review-panel { border-top: 0; border-left: 1px solid var(--review-rule); padding-top: 0; padding-left: var(--review-space-xl); }
}

@media (max-width: 24rem) {
  .review-site { padding-inline: var(--review-space-md); }
  .review-thread-actions > .review-button, .review-form-actions > .review-button { flex: 1 1 auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}