/* ============================================================================
   components.css — masthead, mode toggle, progress bar, sponsor, Works Cited,
   end-zone (related/newsletter/membership), citation popover + bottom sheet,
   footer, archive. Ported from design/preview to the §1.6 tokens.
   ============================================================================ */

/* ── Progress bar ──────────────────────────────────────────────────────────── */
.read-progress {
  position: fixed; inset: 0 auto auto 0; height: 2px; width: var(--read-pct, 0%);
  background: var(--accent); box-shadow: 0 0 10px 1px var(--accent-glow); z-index: 60;
}
@media (prefers-reduced-motion: reduce) { .read-progress { box-shadow: none; } }

/* ── Masthead ──────────────────────────────────────────────────────────────── */
/* Background band is full-bleed; .masthead__inner constrains the actual
   content (wordmark + nav) to the site's 1000px reading column. */
.masthead {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--color-ground) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-hairline);
}
.masthead__inner {
  max-width: 1000px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: .85rem var(--grid-gutter);
}
.wordmark {
  font-family: var(--font-display); font-weight: 700; letter-spacing: .14em;
  font-size: 1.05rem; color: var(--color-text-high); text-transform: uppercase;
  text-decoration: none; white-space: nowrap; flex: 0 0 auto;
  display: flex; align-items: center;
}
.wordmark .q { color: var(--accent); }
.wordmark img { height: 50px; width: auto; display: block; }
.nav { display: flex; gap: 1rem; align-items: center; min-width: 0; }
/* overflow is VISIBLE (not auto) so the Topics/Authors dropdown panels can
   spill below the bar without being clipped. With the old-site IA there are
   only five top-level items, so no horizontal scroll is needed above 768px. */
.nav__track {
  display: flex; gap: 1.1rem; align-items: center; overflow: visible; min-width: 0;
}
.nav__link, .nav a, .nav__disc, .nav__drawer a {
  font-family: var(--font-display); font-size: .78rem; letter-spacing: .04em;
  color: var(--color-text-muted); text-decoration: none; text-transform: uppercase;
  white-space: nowrap; flex: 0 0 auto;
}
.nav a:hover, .nav a:focus-visible,
.nav__link:hover, .nav__link:focus-visible { color: var(--accent); }

/* ── Topics / Authors dropdowns (disclosure pattern) ───────────────────────
   Opens on :hover / :focus-within (works with no JS); nav-dropdown.js layers
   click-toggle + aria-expanded + Esc/outside-close on top via .is-open. */
.nav__dropdown { position: relative; display: inline-flex; align-items: center; }
.nav__disc {
  background: none; border: 0; cursor: pointer; display: inline-flex; align-items: center;
  gap: .35rem; padding: .2rem 0; line-height: 1;
}
.nav__disc:hover, .nav__disc:focus-visible,
.nav__dropdown:hover .nav__disc, .nav__dropdown:focus-within .nav__disc { color: var(--accent); }
.nav__disc:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 3px; }
.nav__caret { font-size: .7em; transition: transform var(--dur-base) var(--ease-out); }
.nav__dropdown:hover .nav__caret,
.nav__dropdown:focus-within .nav__caret,
.nav__disc[aria-expanded="true"] .nav__caret { transform: rotate(180deg); }
@media (prefers-reduced-motion: reduce) { .nav__caret { transition: none; } }

.nav__panel {
  /* top:100% (flush against the trigger, no gap) — a gap here would be a dead
     zone the mouse crosses with nothing :hover-able under it, closing the
     panel before the pointer ever reaches it. The .5rem visual breathing
     room moves to padding-top instead, which stays inside the hoverable box. */
  position: absolute; top: 100%; left: 0; z-index: 55; padding-top: .5rem;
  display: none; flex-direction: column; min-width: 12rem;
  background: var(--color-ground); border: 1px solid var(--color-hairline);
  border-radius: var(--radius-sm); box-shadow: var(--elev-popover);
}
.nav__panel a:first-child { margin-top: .4rem; }
.nav__panel a:last-child { margin-bottom: .4rem; }
.nav__dropdown:hover .nav__panel,
.nav__dropdown:focus-within .nav__panel,
.nav__panel.is-open { display: flex; }
.nav__panel a {
  display: flex; align-items: center; min-height: 40px; padding: .35rem 1rem;
  border-left: 2px solid transparent;
}
.nav__panel a:hover, .nav__panel a:focus-visible { color: var(--accent); background: var(--color-panel); }
/* Per-vertical hue thread on the Topics items — the LINK's own hue, not house cyan. */
.nav__panel a[data-vertical]:hover, .nav__panel a[data-vertical]:focus-visible {
  color: var(--vertical-ink); border-left-color: var(--vertical); background: var(--color-panel);
}
.nav__toggle {
  display: none; background: none; border: none; color: var(--color-text-high);
  font-size: 1.4rem; line-height: 1; padding: .4rem; min-width: 44px; min-height: 44px;
  align-items: center; justify-content: center;
}
.nav__toggle:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.nav__drawer {
  display: none; position: absolute; left: 0; right: 0; top: 100%;
  background: var(--color-ground); border-bottom: 1px solid var(--color-hairline);
  flex-direction: column; max-height: calc(100vh - 64px); overflow-y: auto;
}
.nav__drawer a {
  display: flex; align-items: center; min-height: 48px; padding: 0 var(--grid-gutter);
  border-left: 3px solid transparent; border-bottom: 1px solid var(--color-hairline);
  text-transform: none; font-size: .95rem;
}
.nav__drawer a[data-vertical] { border-left-color: var(--vertical); }
.nav__drawer a:hover, .nav__drawer a:focus-visible { color: var(--vertical-ink); background: var(--color-panel); }
.nav__drawer.is-open { display: flex; }
/* Drawer section labels (Topics / Authors) + indented sub-items — mirror the
   desktop dropdown grouping in the phone menu. */
.nav__drawer-group {
  margin: 0; padding: var(--space-3) var(--grid-gutter) .35rem;
  font: var(--type-meta); letter-spacing: .12em; text-transform: uppercase;
  color: var(--color-text-muted); border-bottom: 1px solid var(--color-hairline);
}
.nav__drawer-sub { padding-left: calc(var(--grid-gutter) + .9rem) !important; }
@media (prefers-reduced-motion: no-preference) {
  .nav__drawer { animation: nav-drawer-in .2s var(--ease-out); }
  @keyframes nav-drawer-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
}
@media (max-width: 767px) {
  /* Phone: wordmark + mode toggle + hamburger — the nine-link track moves
     into the drawer. */
  .nav { gap: .5rem; }
  .nav__track { display: none; }
  .nav__toggle { display: inline-flex; }
}
@media (max-width: 360px) {
  .wordmark { font-size: .92rem; }
}
@media (min-width: 768px) {
  .nav__toggle, .nav__drawer { display: none !important; }
}

/* ── Sponsor aside ─────────────────────────────────────────────────────────── */
.sponsor {
  margin: var(--section-gap) 0; border: 2px solid var(--color-hairline);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 140% at 80% 0%, var(--accent-glow), transparent 60%),
    var(--color-panel);
  padding: var(--space-4); position: relative; overflow: hidden;
}
.sponsor .ad-label {
  font: var(--type-meta); letter-spacing: .16em; text-transform: uppercase;
  color: var(--accent); border: 1px solid var(--accent); border-radius: 999px;
  padding: .25rem .6rem; display: inline-block; margin-bottom: var(--space-3);
}
.sponsor .brand { font-family: var(--font-display); font-weight: 700; letter-spacing: .12em; font-size: 1.5rem; color: var(--color-text-high); }
.sponsor .brand .tm { font-size: .7rem; vertical-align: super; color: var(--accent); }
.sponsor .tagline { font-size: 1.2rem; color: var(--color-text); margin: .5rem 0 1rem; font-style: italic; }
.sponsor .sponsor-body { margin: 0 0 1rem; }
.sponsor .fine { font: var(--type-meta); color: var(--color-text-muted); letter-spacing: .03em; }

/* Sponsor ad adopts its vertical's accent hue (data-vertical maps in tokens.css). */
.sponsor[data-vertical] { --accent: var(--vertical); }

/* Article-aside ad image (new). Homepage keeps its existing .brand-slot__media. */
.sponsor__media {
  margin: 0 0 1rem;
  border-radius: var(--radius, 10px);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--panel, #0c0e14);
}
.sponsor__media img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ── Works Cited ───────────────────────────────────────────────────────────── */
.works-cited { margin: var(--section-gap) 0; }
.works-cited h2 {
  font-family: var(--font-display); color: var(--color-text-high); font-size: 1.1rem;
  letter-spacing: .08em; text-transform: uppercase;
  border-bottom: 1px solid var(--color-hairline); padding-bottom: var(--space-2);
}
.works-cited ol { padding-left: 1.4rem; }
.works-cited li { font-size: .92rem; line-height: 1.5; margin-bottom: var(--space-2); color: var(--color-text); scroll-margin-top: 5rem; }
.works-cited li:target { background: var(--accent-cite-flash); border-radius: 4px; }
.works-cited a.src { color: var(--accent); font-family: var(--font-meta); font-size: .82rem; word-break: break-all; text-decoration: none; }
.works-cited a.src:hover { text-decoration: underline; }
.works-cited .cite-return { font-family: var(--font-meta); font-size: .72rem; color: var(--color-text-muted); margin-left: .4rem; text-decoration: none; white-space: nowrap; }
.works-cited .cite-return:hover { color: var(--accent); }

/* ── End zone (related / newsletter / membership) ──────────────────────────── */
.endzone { border-top: 1px solid var(--color-hairline); margin-top: var(--section-gap); padding-top: var(--space-5); }
.endzone-block { margin-top: var(--space-5); }
.endzone-h { font: var(--type-meta); letter-spacing: .14em; text-transform: uppercase; color: var(--color-text-muted); margin: 0 0 var(--space-3); }
.related { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--space-3); }
.rcard {
  border: 1px solid var(--color-hairline); border-radius: var(--radius); padding: var(--space-3);
  text-decoration: none; background: var(--color-panel);
  transition: border-color .2s ease, transform .2s ease;
}
.rcard:hover { border-color: var(--accent); transform: translateY(-2px); }
.rcard .rk { font: var(--type-meta); letter-spacing: .1em; text-transform: uppercase; color: var(--accent); }
.rcard .rt { display: block; color: var(--color-text-high); font-family: var(--font-display); font-size: 1.02rem; line-height: 1.25; margin-top: .5rem; }

.capture {
  border: 1px solid var(--color-hairline); border-radius: var(--radius); padding: var(--space-4);
  background: radial-gradient(140% 120% at 0% 0%, var(--accent-glow), transparent 55%), var(--color-panel);
}
.capture h3 { font-family: var(--font-display); color: var(--color-text-high); font-size: 1.5rem; margin: 0 0 .5rem; }
.capture p { color: var(--color-text-muted); font-size: 1.02rem; margin: 0 0 1.1rem; }
.capture form { display: flex; gap: .6rem; flex-wrap: wrap; }
.capture input {
  flex: 1; min-width: 200px; background: var(--color-ground); border: 1px solid var(--color-hairline);
  color: var(--color-text-high); border-radius: var(--radius-sm); padding: .8rem 1rem;
  font-family: var(--font-meta); font-size: .9rem; min-height: 44px;
}
.capture input:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 1px; border-color: var(--accent); }
.capture .status { font-family: var(--font-meta); font-size: .8rem; margin-top: .8rem; min-height: 1.1rem; }
.capture .status.ok { color: var(--accent); }
.capture .status.err { color: var(--caution); }

.btn {
  background: var(--accent); color: var(--accent-ink); border: none; border-radius: var(--radius-sm);
  padding: .8rem 1.3rem; font-family: var(--font-display); font-weight: 500; font-size: .9rem;
  letter-spacing: .03em; cursor: pointer; min-height: 44px;
}
.btn:hover { box-shadow: var(--glow-hover); }
.btn:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.btn[aria-busy="true"] { opacity: .7; cursor: progress; }

.member {
  margin-top: var(--space-4); display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-hairline); border-radius: var(--radius);
}
.member span { color: var(--color-text); font-size: 1rem; }
.member .gbtn {
  background: transparent; border: 1px solid var(--accent); color: var(--accent);
  border-radius: var(--radius-sm); padding: .7rem 1.2rem; font-family: var(--font-display);
  font-size: .85rem; cursor: pointer; min-height: 44px; text-decoration: none;
}
.member .gbtn:hover { background: color-mix(in srgb, var(--accent) 14%, transparent); }
.member-note { color: var(--color-text-muted); font: var(--type-caption); margin-top: var(--space-3); }

/* ── Citation popover / mobile bottom sheet ────────────────────────────────── */
.cite-pop {
  position: fixed; z-index: 80; max-width: 320px;
  background: var(--color-panel); border: 1px solid var(--accent);
  border-radius: var(--radius); padding: .85rem 1rem; box-shadow: var(--elev-popover);
  font-family: var(--font-body); opacity: 0; pointer-events: none;
  transform: translateY(4px); transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.cite-pop.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.cite-pop .src-n { font: var(--type-meta); color: var(--accent); letter-spacing: .1em; text-transform: uppercase; }
.cite-pop .src-t { display: block; color: var(--color-text-high); font-size: 1rem; line-height: 1.35; margin: .25rem 0 .4rem; }
.cite-pop a.src-link { display: inline-block; margin-top: .55rem; color: var(--accent); font-family: var(--font-meta); font-size: .74rem; text-decoration: none; }
.cite-pop a.src-link:hover { text-decoration: underline; }
.cite-pop .sheet-close { display: none; }
#sheetback { position: fixed; inset: 0; background: var(--scrim); z-index: 79; opacity: 0; pointer-events: none; transition: opacity var(--dur-base) ease; }
#sheetback.show { opacity: 1; pointer-events: auto; }

@media (max-width: 600px) {
  .capture form { flex-direction: column; }
  .capture .btn { width: 100%; }
  .cite-pop {
    left: 0 !important; right: 0; top: auto !important; bottom: 0;
    max-width: none; width: 100%; border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    border-bottom: none; transform: translateY(100%); padding: 1.3rem 1.2rem 1.8rem;
  }
  .cite-pop.show { transform: translateY(0); }
  .cite-pop .sheet-close {
    display: inline-flex; align-items: center; justify-content: center;
    position: absolute; top: .4rem; right: .6rem;
    background: none; border: none; color: var(--color-text-muted); font-size: 1.5rem;
    line-height: 1; cursor: pointer; min-width: 44px; min-height: 44px;
  }
  .cite-pop .src-t { font-size: 1.12rem; }
}
@media (prefers-reduced-motion: reduce) {
  .cite-pop, #sheetback { transition: opacity .001ms; }
  .cite-pop { transform: none; }
  .cite-pop.show { transform: none; }
}

/* ── Footer ────────────────────────────────────────────────────────────────── */
.site-footer { border-top: 1px solid var(--color-hairline); margin-top: var(--space-7); background: var(--color-ground); overflow: hidden; }

.footer__marquee { overflow: hidden; padding-top: var(--space-5); }
.footer__marquee-track { display: flex; white-space: nowrap; width: max-content; }
.footer__marquee-track span {
  font-family: var(--font-display); font-weight: 700; font-size: clamp(3rem, 12vw, 9rem);
  line-height: 1; letter-spacing: -.01em; color: transparent;
  -webkit-text-stroke: 1px var(--color-hairline); text-stroke: 1px var(--color-hairline);
  padding-inline: var(--space-4);
}
.footer__marquee-track .q { -webkit-text-stroke: 1px var(--accent); text-stroke: 1px var(--accent); }
@media (prefers-reduced-motion: no-preference) {
  .footer__marquee-track { animation: footer-drift 30s ease-in-out infinite alternate; }
  @keyframes footer-drift { from { transform: translateX(0); } to { transform: translateX(-8%); } }
}

.footer__body { padding: var(--space-6) var(--grid-gutter) var(--space-5); }
.footer__body .capture--compact {
  border: none; background: none; padding: 0 0 var(--space-6); margin: 0;
  border-bottom: 1px solid var(--color-hairline); margin-bottom: var(--space-5);
}
.footer__body .capture--compact form { max-width: 32rem; }

.footer__cols { display: grid; grid-template-columns: 1fr; gap: var(--space-4); margin-bottom: var(--space-6); }
.footer__col-h { font: var(--type-meta); letter-spacing: .12em; text-transform: uppercase; color: var(--color-text-muted); margin: 0 0 var(--space-3); }
.footer__col { display: flex; flex-direction: column; gap: .5rem; }
.footer__col a { color: var(--color-text); text-decoration: none; font-size: .92rem; }
.footer__col a:hover, .footer__col a:focus-visible { color: var(--accent); }

.footer__bottom {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-3);
  border-top: 1px solid var(--color-hairline); padding-top: var(--space-4);
}
.footer__tagline, .footer__copyright { font: var(--type-meta); color: var(--color-text-muted); margin: 0; }
.footer__social { display: flex; gap: var(--space-3); }
.footer__social a {
  color: var(--color-text-muted); text-decoration: none; font: var(--type-meta);
  min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--color-hairline); border-radius: 999px;
}
.footer__social a:hover, .footer__social a:focus-visible { color: var(--accent); border-color: var(--accent); }

@media (min-width: 480px) { .footer__cols { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer__cols { grid-template-columns: repeat(3, 1fr); max-width: 640px; margin-left: auto; } }

/* ── Archive ───────────────────────────────────────────────────────────────── */
.archive-list { list-style: none; padding: 0; margin: var(--space-5) 0 0; }
.archive-row { border-bottom: 1px solid var(--color-hairline); }
.archive-link { display: block; padding: var(--space-4) 0; text-decoration: none; }
.archive-link .rk { font: var(--type-meta); letter-spacing: .1em; text-transform: uppercase; color: var(--accent); }
.archive-link .rk-draft { font: var(--type-meta); letter-spacing: .1em; text-transform: uppercase; color: var(--color-text-muted); margin-left: .6em; }
.archive-link .rt { display: block; color: var(--color-text-high); font-family: var(--font-display); font-size: 1.3rem; line-height: 1.2; margin: .3rem 0; }
.archive-link .archive-excerpt { display: block; color: var(--color-text-muted); font-size: .95rem; }
.archive-link:hover .rt { color: var(--accent); }

.filter-row { display: flex; flex-wrap: wrap; gap: var(--space-3, .5rem); margin: var(--space-4) 0 0; }
.filter-chip { font: var(--type-meta); letter-spacing: .05em; text-transform: uppercase; text-decoration: none; color: var(--color-text-muted); border: 1px solid var(--color-hairline); border-radius: 999px; padding: .35em .9em; }
.filter-chip:hover { color: var(--color-text-high); border-color: var(--color-text-muted); }
.filter-chip.is-active { color: var(--color-bg, #000); background: var(--accent); border-color: var(--accent); }