/* Hallmark · macrostructure: Long Document · tone: austere-warm editorial
 * genre: editorial · theme: custom (Quiet Listening Desk / DESIGN.md)
 * nav: N9 Edge-aligned · footer: Ft1 Mast-headed
 */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  overflow-x: clip;
}

html {
  scroll-behavior: smooth;
  /* 錨點跳轉時預留 sticky header 的高度，避免區塊上緣被遮住 */
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--color-body);
  font-variant-numeric: tabular-nums lining-nums;
  background:
    radial-gradient(ellipse 70% 45% at 100% 0%, color-mix(in oklch, var(--color-accent) 35%, transparent), transparent 55%),
    radial-gradient(ellipse 55% 40% at 0% 25%, color-mix(in oklch, var(--color-ink) 8%, transparent), transparent 50%),
    var(--color-white);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

[hidden] {
  display: none !important;
}

a {
  color: var(--color-ink);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--color-accent-deep);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-style: normal;
  color: var(--color-ink);
  font-weight: 600;
  line-height: var(--leading-display);
  overflow-wrap: anywhere;
  min-width: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-md);
  top: -100px;
  z-index: 100;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-ink);
  color: var(--color-white);
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-md);
}

/* ——— Header N9 ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in oklch, var(--color-white) 94%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: var(--rule);
  width: 100%;
}

.site-header__inner {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: var(--space-md) var(--page-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.wordmark {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
  color: var(--color-ink);
  min-width: 0;
}

.wordmark__org {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.wordmark__event {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-ink);
}

.nav-toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.menu-toggle {
  display: none;
  position: relative;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  background: transparent;
  border: var(--rule);
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  cursor: pointer;
}

.menu-toggle__label-close {
  display: none;
}

.menu-toggle__icon,
.menu-toggle__icon::before,
.menu-toggle__icon::after {
  display: block;
  width: 1.1rem;
  height: 1.5px;
  background: currentColor;
  border-radius: 1px;
  transition:
    transform var(--dur-med) var(--ease-out),
    opacity var(--dur-fast) var(--ease-out),
    top var(--dur-med) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out);
}

.menu-toggle__icon {
  position: relative;
}

.menu-toggle__icon::before,
.menu-toggle__icon::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-toggle__icon::before {
  top: -0.35rem;
}

.menu-toggle__icon::after {
  top: 0.35rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md) var(--space-lg);
  align-items: center;
}

.site-nav a {
  position: relative;
  font-size: var(--text-label);
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--color-ink-soft);
  white-space: nowrap;
  transition: color var(--dur-fast) var(--ease-out);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.22em;
  height: 1px;
  background: var(--color-accent-deep);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur-med) var(--ease-out);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-ink);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

/* ——— Buttons ——— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 44px;
  padding: 0.7rem 1.35rem;
  font-family: var(--font-body);
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--dur-med) var(--ease-out),
    color var(--dur-med) var(--ease-out),
    border-color var(--dur-med) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-ink);
  color: var(--color-white);
}

.btn--primary:hover {
  background: color-mix(in oklch, var(--color-ink) 88%, black);
  color: var(--color-paper);
  transform: translateY(-1px);
}

.btn--primary:active {
  transform: translateY(1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-rule);
}

.btn--ghost:hover {
  border-color: var(--color-accent-deep);
  color: var(--color-accent-deep);
  background: var(--color-accent-soft);
  transform: translateY(-1px);
}

.btn.is-disabled,
.btn[aria-disabled="true"] {
  opacity: 0.55;
  pointer-events: none;
}

/* ——— Motion (Quiet Listening Desk · restrained & ambient) ——— */
/* Section scroll entrance animation
   以捲動時間軸驅動：進場進度由區塊在視窗中的位置決定，
   所以重新整理停在頁面中段時，該區塊第一幀就是完成狀態，不會先出現再消失。
   不支援的瀏覽器直接顯示內容，沒有動畫也不會缺內容。 */
@keyframes reveal-rise {
  from {
    opacity: 0;
    transform: translateY(1.5rem);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .reveal-on-scroll > .section__inner {
      animation: reveal-rise linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 45%;
    }
  }
}

/* ——— Hand-drawn washes (decorative, low opacity) ——— */
.wash {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.wash img {
  position: absolute;
  display: block;
  max-width: none;
  height: auto;
  user-select: none;
  mix-blend-mode: multiply;
  /* 四邊邊緣羽化，避免切邊邊界感 */
  mask-image:
    linear-gradient(to right, transparent 0%, black 22%, black 78%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, black 22%, black 78%, transparent 100%);
  mask-composite: intersect;
  -webkit-mask-image:
    linear-gradient(to right, transparent 0%, black 22%, black 78%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, black 22%, black 78%, transparent 100%);
  -webkit-mask-composite: source-in;
}

/* Hero：往內收，落在標題右側空白 (無進場動畫，保持靜態) */
.wash--hero img {
  right: clamp(1.5rem, 6vw, 4.5rem);
  bottom: clamp(1rem, 3vw, 2.5rem);
  width: min(34vw, 22rem);
  opacity: 0.15;
  transform: rotate(2deg);
}

/* 議程：錄音帶疊在標題右上，不佔流式高度 */
.programme__body {
  position: relative;
  isolation: isolate;
}

.programme > .section__inner > .programme__body > .wash--programme {
  position: absolute;
  inset: auto;
  top: -3rem;
  right: clamp(1rem, 4vw, 3rem);
  width: min(22vw, 14rem);
  z-index: 0;
  overflow: visible;
}

.wash--programme img {
  position: relative;
  top: auto;
  right: auto;
  width: 100%;
  opacity: 0.13;
  transform: rotate(-3deg);
}

.programme__body > .section__head,
.programme__body > .schedule {
  position: relative;
  z-index: 1;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero {
  position: relative;
  isolation: isolate;
  overflow: clip;
  border-bottom: var(--rule);
  background: var(--color-white);
  width: 100%;
}

.hero__inner {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: var(--section-pad-v) var(--page-pad);
}

.hero__copy {
  max-width: 46rem;
}

.hero h1 {
  margin: var(--space-xs) 0 0;
  font-size: var(--text-display);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.hero__title-a {
  color: var(--color-ink-brand);
}

.hero__title-mark {
  color: var(--color-ink);
  margin-inline: 0.05em;
}

.hero__title-b {
  color: var(--color-accent-deep);
}

.hero__subtitle {
  margin: var(--space-md) 0 0;
  padding-bottom: var(--space-lg);
  font-family: var(--font-display);
  font-size: var(--text-title);
  font-weight: 600;
  color: var(--color-ink);
  border-bottom: var(--rule-dashed);
}

.hero__intro {
  margin: var(--space-lg) 0 0;
  max-width: var(--measure);
  color: var(--color-ink-soft);
  line-height: var(--leading-body);
}

.hero__facts {
  margin: var(--space-xl) 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: var(--space-md) var(--space-xl);
  padding: var(--space-lg) 0;
  border-block: var(--rule);
}

.hero__facts dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

.hero__facts dd {
  margin: var(--space-2xs) 0 0;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.4;
}

.hero__facts .fact-time {
  color: var(--color-accent-deep);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

/* ——— Section Full-Width Containers & Divider Lines ——— */
.section {
  position: relative;
  width: 100%;
  border-bottom: var(--rule);
  background: var(--color-white);
}

.section--paper {
  background: var(--color-paper);
}

.section__inner {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: var(--section-pad-v) var(--page-pad);
}

.section__head {
  margin-bottom: var(--space-2xl);
  max-width: 44rem;
}

.section__head h2 {
  margin: 0;
  font-size: var(--text-headline);
  position: relative;
}

.section__head h2::after {
  content: "";
  display: block;
  width: 2.5rem;
  height: 2px;
  margin-top: var(--space-sm);
  background: var(--color-ink-brand);
  border-radius: 1px;
}

/* ——— About Section ——— */
.about__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: center;
}

.prose {
  max-width: 68ch;
}

.prose p {
  margin: 0 0 var(--space-md);
}

.prose p:last-child {
  margin-bottom: 0;
}

.prose__lead {
  font-size: 1.06rem;
  line-height: 1.75;
  color: var(--color-ink);
}

.about__aside {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.archive-figure {
  margin: 0;
  background: var(--color-white);
  border: 1px solid var(--color-rule);
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  transition: transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out);
}

.archive-figure:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px -6px color-mix(in oklch, var(--color-ink) 12%, transparent);
  border-color: color-mix(in oklch, var(--color-accent) 45%, var(--color-rule));
}

.archive-figure__frame {
  overflow: hidden;
  border-radius: var(--radius-sm);
  aspect-ratio: 16 / 10;
}

.archive-figure__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}

.archive-figure:hover .archive-figure__frame img {
  transform: scale(1.04);
}

.archive-figure__caption {
  padding: var(--space-md) var(--space-xs) var(--space-xs);
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.archive-figure__caption strong {
  font-family: var(--font-display);
  font-size: 0.92rem;
  color: var(--color-ink);
}

.archive-figure__caption span {
  font-size: var(--text-label);
  color: var(--color-muted);
  line-height: 1.4;
}

/* ——— Speakers: 2-column flat editorial grid ——— */
.speakers__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2xl) var(--space-xl);
  align-items: stretch;
}

.speaker-card {
  padding: var(--space-xl);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
  background: var(--color-paper);
  display: flex;
  flex-direction: column;
  transition: transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out);
}

.speaker-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 28px -6px color-mix(in oklch, var(--color-ink) 14%, transparent);
  border-color: color-mix(in oklch, var(--color-accent) 55%, var(--color-rule));
}

.speaker-card__header {
  padding-bottom: var(--space-md);
  border-bottom: var(--rule);
  margin-bottom: var(--space-lg);
}

.speaker-card__header h3 {
  margin: 0;
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  color: var(--color-ink);
}

.speaker-card__affil {
  margin: var(--space-xs) 0 0;
  font-size: var(--text-label);
  color: var(--color-ink-soft);
  line-height: 1.45;
}

.speaker-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  flex-grow: 1;
}

.speaker-card__bio {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-ink);
  line-height: 1.7;
  text-align: justify;
}

/* ——— Programme Section ——— */
.schedule {
  list-style: none;
  margin: 0;
  padding: 0;
}

.schedule li {
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: var(--space-lg);
  padding: var(--space-md) var(--space-sm);
  border-bottom: var(--rule);
  align-items: start;
}

.schedule time {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.02em;
  color: var(--color-ink-brand);
  white-space: nowrap;
}

.schedule strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-ink);
}

.schedule span {
  display: block;
  margin-top: var(--space-2xs);
  font-size: 0.95rem;
  color: var(--color-ink-soft);
}

.schedule__title {
  font-family: var(--font-display) !important;
  font-weight: 600 !important;
  color: var(--color-ink) !important;
}

.schedule__speaker {
  color: var(--color-ink-brand) !important;
}

.schedule__session {
  background: var(--color-accent-soft);
}

.schedule__session strong {
  color: var(--color-ink);
}

.schedule__session span {
  color: var(--color-ink);
}

.schedule__session .schedule__title {
  color: var(--color-ink) !important;
}

/* ——— Register Section ——— */
.register__card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 16.5rem;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: center;
  padding: clamp(2rem, 4vw, 3.25rem);
  background: var(--color-white);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.register__content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.register__heading {
  margin: 0 0 var(--space-xs);
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  color: var(--color-ink);
  line-height: 1.35;
}

.register__intro {
  margin: 0 0 var(--space-lg);
  color: var(--color-ink-soft);
  line-height: var(--leading-body);
  font-size: 0.98rem;
  max-width: 44ch;
}

.register__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.btn--lg {
  min-height: 48px;
  padding: 0.85rem 1.85rem;
  font-size: 0.88rem;
}

/* QR Code Card */
.register__qr-section {
  display: flex;
  justify-content: center;
  width: 100%;
}

.register__qr-card {
  margin: 0;
  padding: var(--space-lg);
  background: var(--color-paper);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-sm);
  text-align: center;
  width: 100%;
  max-width: 16.5rem;
}

.register__qr-frame {
  width: 100%;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  border: var(--rule-dashed);
  background: var(--color-white);
  border-radius: var(--radius-sm);
}

.register__qr-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-xs);
}

.register__qr-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-label);
  line-height: 1.45;
  color: var(--color-muted);
}

.register__qr-icon {
  color: var(--color-accent-deep);
  opacity: 0.75;
}

.register__qr-card figcaption {
  margin-top: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

/* ——— Footer ——— */
.site-footer {
  width: 100%;
  background: var(--color-paper-deep);
  color: var(--color-ink);
}

.site-footer__inner {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: clamp(2.75rem, 5vw, 4rem) var(--page-pad) clamp(1.75rem, 3vw, 2.5rem);
}

.site-footer__list {
  margin: 0;
  padding: 0 0 var(--space-xl);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-xl) var(--space-2xl);
  border-bottom: 1px solid var(--color-rule);
}

.site-footer__list dt {
  margin: 0 0 var(--space-xs);
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.04em;
  color: var(--color-ink-brand);
}

.site-footer__list dd {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-ink);
}

.site-footer__list a {
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--color-rule);
}

.site-footer__list a:hover {
  color: var(--color-accent-deep);
  border-bottom-color: currentColor;
}

.site-footer__sep {
  margin-inline: 0.35em;
  opacity: 0.45;
}

.site-footer__bottom {
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
}

.site-footer__copyright {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-label);
  color: var(--color-muted);
}

.site-footer__top {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.04em;
  color: var(--color-ink-brand);
  text-decoration: none;
  border-bottom: 1px solid var(--color-rule);
  transition:
    color var(--dur-fast) var(--ease-out),
    border-bottom-color var(--dur-fast) var(--ease-out);
}

.site-footer__top:hover {
  color: var(--color-ink);
  border-bottom-color: currentColor;
}

/* ——— Responsive ——— */
@media (max-width: 960px) {
  .about__grid,
  .register__card {
    grid-template-columns: minmax(0, 1fr);
  }

  .register__qr-section {
    justify-content: flex-start;
  }

  .register__qr-card {
    max-width: 15rem;
  }

  .site-footer__list {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-lg);
  }

  .about__aside {
    max-width: 28rem;
  }
}

@media (max-width: 720px) {
  .wash--hero img {
    width: min(58vw, 14rem);
    opacity: 0.09;
    right: 1rem;
    bottom: 0.75rem;
  }

  .wash--programme {
    display: none;
  }

  .speakers__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .menu-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .nav-toggle:checked ~ .menu-toggle .menu-toggle__label-open {
    display: none;
  }

  .nav-toggle:checked ~ .menu-toggle .menu-toggle__label-close {
    display: block;
  }

  .nav-toggle:checked ~ .menu-toggle .menu-toggle__icon {
    background: transparent;
  }

  .nav-toggle:checked ~ .menu-toggle .menu-toggle__icon::before {
    top: 0;
    transform: rotate(45deg);
  }

  .nav-toggle:checked ~ .menu-toggle .menu-toggle__icon::after {
    top: 0;
    transform: rotate(-45deg);
  }

  .site-nav {
    display: flex;
    width: 100%;
    flex-basis: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
    padding-top: 0;
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    pointer-events: none;
    transition:
      max-height var(--dur-med) var(--ease-out),
      opacity var(--dur-med) var(--ease-out),
      padding-top var(--dur-med) var(--ease-out),
      visibility var(--dur-med) var(--ease-out);
  }

  .site-header__inner {
    flex-wrap: wrap;
  }

  .nav-toggle:checked ~ .site-nav {
    max-height: 16rem;
    opacity: 1;
    visibility: visible;
    padding-top: var(--space-sm);
    pointer-events: auto;
  }

  .schedule li {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-2xs);
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal-on-scroll,
  .reveal-on-scroll > .section__inner {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ——— Speaker Card Topic Highlight ——— */
.speaker-card__topic {
  margin-top: auto;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent-soft);
  border-left: 3px solid var(--color-accent-deep);
  border-radius: var(--radius-sm);
  font-size: 0.93rem;
  line-height: 1.55;
  color: var(--color-ink);
}

.speaker-card__topic-label {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-accent-deep);
  display: inline-block;
  margin-right: 0.4em;
}


/* ——— Harmonized About Section Layout ——— */
.about__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: clamp(2rem, 4.5vw, 3.5rem);
  align-items: center;
}

.prose__lead {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-ink);
}

.archive-figure {
  margin: 0;
  background: var(--color-white);
  border: 1px solid var(--color-rule);
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 16px -4px color-mix(in oklch, var(--color-ink) 8%, transparent);
}

.archive-figure__frame {
  overflow: hidden;
  border-radius: var(--radius-sm);
  aspect-ratio: 4 / 3;
}