/* =========================================================
   Kansai MIST Society — 30th Annual Meeting
   Editorial Magazine Style
   ========================================================= */

/* ---------- DESIGN TOKENS ---------- */
:root {
  /* Color — Sophisticated Blue Monochrome
     ・Deep ink navy → primary brand
     ・Mid azure → accent (formerly gold — variable names retained for stability)
     ・Cool azure-tinted neutrals
  */
  --color-ink: #061626;
  --color-navy: #002F5E;
  --color-navy-deep: #001530;
  --color-navy-soft: #1B4D8A;
  /* Accent — refined azure (mapped onto former gold tokens) */
  --color-gold: #2A6FB8;          /* mid azure — eyebrow rules / numerals */
  --color-gold-light: #7AB0DE;    /* light sky — on-dark text & glints */
  --color-gold-dark: #18467F;     /* deep azure — eyebrow text on light */
  /* Cool paper neutrals */
  --color-paper: #F4F8FC;
  --color-paper-warm: #E8F0F7;
  --color-stone: #D2DFEC;
  --color-hairline: #B8CADD;
  --color-text: #0E2540;
  --color-text-sub: #4A6285;
  --color-text-muted: #7390B0;
  --color-white: #FFFFFF;

  /* Type — Medical journal aesthetic
     ・Inter / IBM Plex Sans → clean clinical sans-serif (was Noto Serif)
     ・IBM Plex Mono → tabular numerals, lab-precision time stamps (was Cormorant)
     ・Noto Sans JP 700/900 → Japanese display weight for medical impact
     ・IBM Plex Serif → reserved for journal-style accents
  */
  --font-display: "Inter", "IBM Plex Sans", "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: "Noto Sans JP", "Inter", "IBM Plex Sans", -apple-system, sans-serif;
  --font-latin: "IBM Plex Mono", "SF Mono", "Menlo", monospace;
  --font-serif: "IBM Plex Serif", "Noto Serif JP", "Times New Roman", serif;

  /* Type scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.25rem;
  --text-display: clamp(2.5rem, 1rem + 6vw, 5rem);
  --text-numeral: clamp(8rem, 5rem + 18vw, 22rem);

  /* Spacing */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-section: clamp(5rem, 4rem + 4vw, 9rem);

  /* Layout */
  --width-max: 1320px;
  --width-content: 1080px;
  --width-narrow: 720px;
  --header-h: 72px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 200ms;
  --duration-base: 400ms;
  --duration-slow: 800ms;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--text-base);
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--color-text);
  background: var(--color-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "palt" 1;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out),
              opacity var(--duration-fast) var(--ease-out);
}

button {
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: 0;
  color: inherit;
}

::selection {
  background: var(--color-navy);
  color: var(--color-gold-light);
}

/* ---------- ACCESSIBILITY ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 999;
  padding: 0.75rem 1.5rem;
  background: var(--color-navy);
  color: var(--color-white);
  border-radius: 4px;
}
.skip-link:focus { left: 1rem; top: 1rem; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- LAYOUT HELPERS ---------- */
.container {
  width: 100%;
  max-width: var(--width-max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 1rem + 2vw, 3rem);
}

.section {
  padding: var(--space-section) 0;
  position: relative;
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 1rem 2rem;
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.12em;
  border-radius: 0;
  position: relative;
  overflow: hidden;
  transition: all var(--duration-base) var(--ease-out);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn span { transition: transform var(--duration-base) var(--ease-out); }

.btn-primary {
  background: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
}
.btn-primary:hover {
  background: var(--color-navy-deep);
  border-color: var(--color-navy-deep);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -10px rgba(0, 34, 71, 0.4);
}
.btn-primary:hover span { transform: translateX(4px); }

.btn-ghost {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}
.btn-ghost:hover {
  background: var(--color-navy);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-large {
  padding: 1.25rem 2.5rem;
  font-size: var(--text-base);
}

.btn-small {
  padding: 0.7rem 1.4rem;
  font-size: var(--text-xs);
}

/* ---------- HEADER ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 250, 245, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out);
}
.site-header[data-scrolled="true"] {
  border-bottom-color: var(--color-hairline);
}

.header-inner {
  max-width: var(--width-max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 1rem + 2vw, 3rem);
  height: var(--header-h);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.55rem;
  background: var(--color-navy);
  color: var(--color-gold-light);
  font-family: var(--font-latin);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  font-weight: 500;
  position: relative;
}
.brand-mark-bar {
  width: 6px;
  height: 6px;
  background: var(--color-gold);
  border-radius: 50%;
  display: block;
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand-en {
  font-family: var(--font-latin);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-sub);
}
.brand-ja {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-ink);
}

.primary-nav {
  display: flex;
  justify-content: center;
  gap: clamp(1rem, 0.5rem + 1.5vw, 2.5rem);
}
.primary-nav a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-text);
  position: relative;
  padding: 0.5rem 0;
}
.nav-num {
  font-family: var(--font-latin);
  font-size: 0.7rem;
  font-style: italic;
  color: var(--color-gold);
  letter-spacing: 0.05em;
}
.primary-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 0;
  background: var(--color-gold);
  transition: width var(--duration-base) var(--ease-out);
}
.primary-nav a:hover::after { width: 100%; }
.primary-nav a:hover { color: var(--color-navy); }

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  background: var(--color-navy);
  color: var(--color-white);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  transition: all var(--duration-base) var(--ease-out);
}
.header-cta:hover {
  background: var(--color-gold-dark);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}
.nav-toggle span {
  display: block;
  width: 26px;
  height: 1.5px;
  background: var(--color-ink);
  transition: transform var(--duration-base) var(--ease-out),
              opacity var(--duration-fast) var(--ease-out);
}

.mobile-nav { display: none; }

@media (max-width: 880px) {
  .header-inner { grid-template-columns: auto 1fr auto; }
  .primary-nav, .header-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .mobile-nav {
    display: flex;
    flex-direction: column;
    background: var(--color-paper);
    border-top: 1px solid var(--color-hairline);
    padding: 1.5rem 1.5rem 2rem;
    gap: 0.25rem;
  }
  .mobile-nav[hidden] { display: none; }
  .mobile-nav a {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    padding: 0.85rem 0;
    font-size: 1rem;
    font-weight: 500;
    border-bottom: 1px solid var(--color-hairline);
  }
  .mobile-nav a span {
    font-family: var(--font-latin);
    font-style: italic;
    font-size: 0.85rem;
    color: var(--color-gold);
  }
  .mobile-cta {
    margin-top: 1rem;
    background: var(--color-navy);
    color: var(--color-white);
    justify-content: center;
    border: 0 !important;
    padding: 1rem !important;
    letter-spacing: 0.1em;
  }
  .mobile-cta span { display: none; }
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-h) + 2rem) 0 4rem;
  background: linear-gradient(180deg, var(--color-paper) 0%, var(--color-paper-warm) 100%);
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(42, 111, 184, 0.18) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.5;
  mask-image: radial-gradient(ellipse at 70% 30%, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 70% 30%, black 30%, transparent 70%);
  pointer-events: none;
}

.hero-rule {
  position: absolute;
  top: 50%;
  right: 0;
  width: 1px;
  height: 50%;
  background: linear-gradient(180deg, transparent 0%, var(--color-gold) 50%, transparent 100%);
  opacity: 0.4;
}

.hero-inner {
  position: relative;
  width: 100%;
  max-width: var(--width-max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 1rem + 2vw, 3rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--font-latin);
  font-size: 0.85rem;
  font-style: italic;
  letter-spacing: 0.15em;
  color: var(--color-gold-dark);
  margin-bottom: 1.5rem;
}
.eyebrow-mark {
  width: 32px;
  height: 1px;
  background: var(--color-gold);
}

.hero-numeral {
  font-family: var(--font-latin);
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  line-height: 0.85;
  margin: 0.5rem 0 1rem;
  color: var(--color-navy);
}
.numeral-vol {
  font-size: clamp(0.85rem, 0.5rem + 0.6vw, 1.1rem);
  letter-spacing: 0.3em;
  font-style: italic;
  font-weight: 400;
  align-self: flex-start;
  padding-top: 0.5em;
  color: var(--color-gold-dark);
}
.numeral-figure {
  font-size: var(--text-numeral);
  font-weight: 500;
  letter-spacing: -0.04em;
  background: linear-gradient(180deg, var(--color-navy) 0%, var(--color-navy-soft) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
}
.numeral-th {
  font-size: clamp(2rem, 1rem + 3vw, 4rem);
  font-style: italic;
  font-weight: 400;
  align-self: flex-start;
  padding-top: 0.6em;
  color: var(--color-gold);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 0.8rem + 2.2vw, 2.6rem);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.05em;
  margin: 0 0 2.5rem;
  color: var(--color-ink);
}
.hero-title em {
  font-family: var(--font-latin);
  font-style: italic;
  color: var(--color-gold-dark);
  font-weight: 500;
  margin: 0 0.1em;
}
.title-line-1 {
  display: block;
  font-size: 0.7em;
  color: var(--color-text-sub);
  margin-bottom: 0.3em;
  letter-spacing: 0.15em;
}
.title-line-2 { display: block; }

.hero-theme {
  border-top: 1px solid var(--color-hairline);
  border-bottom: 1px solid var(--color-hairline);
  padding: 2rem 0;
  margin: 0 0 2.5rem;
  max-width: 720px;
  position: relative;
}
.hero-theme::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 56px;
  height: 1px;
  background: var(--color-gold);
}
.theme-label {
  display: inline-block;
  font-family: var(--font-latin);
  font-size: 0.78rem;
  font-style: italic;
  letter-spacing: 0.25em;
  color: var(--color-gold-dark);
  margin-bottom: 1rem;
}
.theme-jp {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 0.9rem + 2vw, 2.6rem);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.05em;
  margin: 0 0 0.75rem;
  color: var(--color-ink);
}
.theme-en {
  font-family: var(--font-latin);
  font-size: 1rem;
  font-style: italic;
  letter-spacing: 0.05em;
  color: var(--color-text-sub);
  margin: 0;
  line-height: 1.5;
}
.theme-en span { color: var(--color-gold-dark); }

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 0 0 2.5rem;
  padding: 0;
  max-width: 720px;
}
.hero-meta > div {
  padding: 0.5rem 1.5rem 0.5rem 0;
  border-right: 1px solid var(--color-hairline);
}
.hero-meta > div:first-child { padding-left: 0; }
.hero-meta > div:last-child { border-right: 0; }
.hero-meta dt {
  font-family: var(--font-latin);
  font-size: 0.7rem;
  font-style: italic;
  letter-spacing: 0.2em;
  color: var(--color-gold-dark);
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}
.hero-meta dd {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-ink);
}
.hero-meta .meta-sub {
  display: block;
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text-sub);
  margin-top: 0.15rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-latin);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--color-text-sub);
  z-index: 2;
}
.scroll-line {
  display: block;
  width: 1px;
  height: 48px;
  background: var(--color-text-sub);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--color-gold);
  animation: scrollLine 2s var(--ease-in-out) infinite;
}
@keyframes scrollLine {
  0%   { transform: translateY(-100%); }
  50%  { transform: translateY(0%); }
  100% { transform: translateY(100%); }
}

@media (max-width: 720px) {
  .hero-meta { grid-template-columns: 1fr; }
  .hero-meta > div {
    border-right: 0;
    border-bottom: 1px solid var(--color-hairline);
    padding: 0.85rem 0;
  }
  .hero-meta > div:last-child { border-bottom: 0; }
  .hero-scroll { display: none; }
}

/* ---------- SECTION HEADER ---------- */
.section-header {
  margin-bottom: clamp(3rem, 2rem + 3vw, 5rem);
  text-align: center;
}
.section-num {
  display: inline-block;
  font-family: var(--font-latin);
  font-size: 0.85rem;
  font-style: italic;
  letter-spacing: 0.3em;
  color: var(--color-gold-dark);
  margin-bottom: 1rem;
}
.section-title {
  font-family: var(--font-display);
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  line-height: 1.2;
}
.title-en {
  font-family: var(--font-latin);
  font-size: clamp(2.5rem, 1.5rem + 4vw, 5rem);
  font-weight: 400;
  font-style: italic;
  letter-spacing: 0.02em;
  color: var(--color-navy);
}
.title-jp {
  font-family: var(--font-display);
  font-size: clamp(0.9rem, 0.7rem + 0.5vw, 1.05rem);
  font-weight: 500;
  letter-spacing: 0.4em;
  color: var(--color-text-sub);
  padding-left: 0.4em;
}
.section-lede {
  margin: 1.5rem auto 0;
  max-width: 640px;
  font-size: 0.95rem;
  line-height: 2;
  color: var(--color-text-sub);
}

/* ---------- GREETINGS ---------- */
.greetings { background: var(--color-paper); }

.greeting-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: clamp(2rem, 1rem + 4vw, 5rem);
  max-width: var(--width-content);
  margin: 0 auto;
  align-items: start;
}

.greeting-portrait {
  position: sticky;
  top: calc(var(--header-h) + 2rem);
}
.greeting-portrait figure { margin: 0; }
.portrait-frame {
  position: relative;
  aspect-ratio: 4 / 5;
  background: var(--color-paper-warm);
  margin-bottom: 1.5rem;
  overflow: hidden;
  isolation: isolate;
}
.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  filter: contrast(1.02) saturate(0.92);
  transition: transform 1.2s var(--ease-out);
}
.portrait-frame:hover img { transform: scale(1.03); }
.portrait-frame::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(122, 176, 222, 0.35);
  pointer-events: none;
  z-index: 2;
}
.portrait-frame::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 44%;
  height: 4px;
  background: var(--color-gold);
  z-index: 2;
}
.portrait-tag {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  font-family: var(--font-latin);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  font-style: italic;
  color: var(--color-gold-light);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.45);
  z-index: 3;
}
figcaption {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.portrait-role {
  font-family: var(--font-latin);
  font-size: 0.75rem;
  font-style: italic;
  letter-spacing: 0.15em;
  color: var(--color-gold-dark);
  margin-bottom: 0.25rem;
}
.portrait-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-ink);
}
.portrait-name-en {
  font-family: var(--font-latin);
  font-size: 0.85rem;
  font-style: italic;
  color: var(--color-text-sub);
  margin-bottom: 0.5rem;
}
.portrait-affil {
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--color-text-sub);
  border-top: 1px solid var(--color-hairline);
  padding-top: 0.85rem;
  margin-top: 0.25rem;
}

.greeting-pull {
  margin: 0 0 3rem;
  padding: 2rem 0;
  border-top: 1px solid var(--color-gold);
  border-bottom: 1px solid var(--color-hairline);
  position: relative;
}
.greeting-pull p {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1rem + 1.5vw, 2.1rem);
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.05em;
  color: var(--color-navy);
  margin: 0;
}
.quote-mark {
  position: absolute;
  top: 0.5rem;
  left: -0.5rem;
  font-family: var(--font-latin);
  font-size: 4rem;
  line-height: 1;
  color: var(--color-gold);
  opacity: 0.5;
}

.greeting-text p {
  margin: 0 0 1.5rem;
  font-size: 1rem;
  line-height: 2;
  color: var(--color-text);
}
.greeting-text .lead {
  font-size: 1.05rem;
  color: var(--color-ink);
}
.greeting-text strong {
  font-weight: 700;
  color: var(--color-navy);
}
.greeting-text mark {
  background: linear-gradient(180deg, transparent 60%, rgba(42, 111, 184, 0.25) 60%);
  padding: 0 0.1em;
  color: var(--color-ink);
}

@media (max-width: 880px) {
  .greeting-grid { grid-template-columns: 1fr; }
  .greeting-portrait { position: static; }
  .portrait-frame { max-width: 280px; aspect-ratio: 1 / 1; }
}

/* ---------- OVERVIEW ---------- */
.overview {
  background: var(--color-paper-warm);
  position: relative;
}
.overview::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-hairline) 20%, var(--color-hairline) 80%, transparent 100%);
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-hairline);
  margin: 0 auto 4rem;
  max-width: var(--width-max);
  border: 1px solid var(--color-hairline);
}

.overview-card {
  background: var(--color-paper);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  transition: background var(--duration-base) var(--ease-out);
}
.overview-card:hover { background: var(--color-white); }

.overview-card--feature {
  background: var(--color-navy);
  color: var(--color-white);
}
.overview-card--feature:hover { background: var(--color-navy-deep); }

.overview-card--wide { grid-column: span 4; }

.card-label {
  font-family: var(--font-latin);
  font-size: 0.75rem;
  font-style: italic;
  letter-spacing: 0.25em;
  color: var(--color-gold-dark);
  text-transform: uppercase;
}
.overview-card--feature .card-label { color: var(--color-gold-light); }

.card-value time {
  display: flex;
  flex-direction: column;
  gap: 0;
  font-family: var(--font-latin);
  line-height: 1;
}
.date-y {
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  font-style: italic;
  color: var(--color-gold-light);
  margin-bottom: 0.25rem;
}
.date-md {
  font-size: clamp(2.5rem, 1.5rem + 3vw, 4rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-white);
}
.date-d {
  font-size: 0.9rem;
  letter-spacing: 0.25em;
  font-style: italic;
  color: var(--color-gold-light);
  margin-top: 0.5rem;
}

.card-headline {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.5;
  margin: 0.25rem 0 0;
  color: var(--color-ink);
}
.overview-card--feature .card-headline { color: var(--color-gold-light); margin-top: 0.75rem; }

.card-sub {
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--color-text-sub);
  margin: 0.25rem 0 0;
}
.overview-card--feature .card-sub { color: rgba(255, 255, 255, 0.7); }

@media (max-width: 880px) {
  .overview-grid { grid-template-columns: repeat(2, 1fr); }
  .overview-card--wide { grid-column: span 2; }
}
@media (max-width: 540px) {
  .overview-grid { grid-template-columns: 1fr; }
  .overview-card--wide { grid-column: span 1; }
}

/* ---- Schedule summary ---- */
.schedule-summary {
  max-width: var(--width-max);
  margin: 0 auto;
  padding: 0;
}
.schedule-title {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  margin: 0 0 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-hairline);
}
.schedule-title span {
  font-family: var(--font-latin);
  font-size: 2rem;
  font-style: italic;
  font-weight: 400;
  color: var(--color-navy);
}
.schedule-title em {
  font-family: var(--font-latin);
  font-size: 0.9rem;
  font-style: italic;
  letter-spacing: 0.2em;
  color: var(--color-gold-dark);
}

.schedule-rows {
  display: flex;
  flex-direction: column;
}
.schedule-row {
  display: grid;
  grid-template-columns: 100px 200px 160px 1fr;
  align-items: center;
  gap: 1.5rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-hairline);
  transition: padding-left var(--duration-base) var(--ease-out);
}
.schedule-row:hover { padding-left: 1rem; }
.schedule-row:last-child { border-bottom: 0; }

.row-tag {
  font-family: var(--font-latin);
  font-size: 0.75rem;
  font-style: italic;
  letter-spacing: 0.2em;
  padding: 0.4rem 0.7rem;
  text-align: center;
  background: var(--color-paper);
  border: 1px solid var(--color-hairline);
}
.schedule-row--main .row-tag { background: var(--color-navy); color: var(--color-white); border-color: var(--color-navy); }
.schedule-row--sub .row-tag { background: rgba(37, 99, 235, 0.08); color: var(--color-navy); border-color: rgba(37, 99, 235, 0.25); }
.schedule-row--hands .row-tag { background: rgba(42, 111, 184, 0.1); color: var(--color-gold-dark); border-color: var(--color-gold); }

.row-time {
  font-family: var(--font-latin);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-ink);
}
.row-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--color-navy);
}
.row-desc {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  line-height: 1.6;
}

@media (max-width: 880px) {
  .schedule-row {
    grid-template-columns: auto auto;
    grid-template-rows: auto auto;
    gap: 0.5rem 1rem;
  }
  .row-tag { grid-row: 1; grid-column: 1; }
  .row-time { grid-row: 1; grid-column: 2; }
  .row-name { grid-row: 2; grid-column: 1 / span 2; }
  .row-desc { grid-row: 3; grid-column: 1 / span 2; }
}

/* ---------- PROGRAM ---------- */
.program { background: var(--color-paper); }

.room {
  margin-bottom: 4rem;
}
.room:last-child { margin-bottom: 0; }

.room-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-hairline);
}
.room-mark {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.85rem;
}
.mark-num {
  font-family: var(--font-latin);
  font-size: 0.85rem;
  font-style: italic;
  letter-spacing: 0.2em;
  color: var(--color-gold-dark);
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--color-gold);
}
.mark-line {
  flex: 1;
  height: 1px;
  background: var(--color-hairline);
  max-width: 60px;
}
.mark-tag {
  font-family: var(--font-latin);
  font-size: 0.75rem;
  font-style: italic;
  letter-spacing: 0.3em;
  color: var(--color-text-sub);
}
.room-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1rem + 1.2vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  margin: 0 0 0.5rem;
  color: var(--color-ink);
}
.room-subtitle {
  font-family: var(--font-latin);
  font-size: 1.05rem;
  font-style: italic;
  letter-spacing: 0.1em;
  color: var(--color-gold-dark);
  margin: 0;
}

/* Timeline (Room 1) */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 200px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-hairline);
}

.timeline-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0;
  position: relative;
  padding: 0 0 2.5rem;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-item .time {
  font-family: var(--font-latin);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-ink);
  padding-top: 0.25rem;
  padding-right: 2rem;
  text-align: right;
  position: relative;
}
.timeline-item .time::after {
  content: "";
  position: absolute;
  right: -5px;
  top: 0.75rem;
  width: 9px;
  height: 9px;
  background: var(--color-paper);
  border: 2px solid var(--color-gold);
  border-radius: 50%;
  z-index: 2;
}

.timeline-item .entry {
  padding: 0 0 0 2rem;
  position: relative;
}

.entry-tag {
  display: inline-block;
  font-family: var(--font-latin);
  font-size: 0.7rem;
  font-style: italic;
  letter-spacing: 0.18em;
  padding: 0.3rem 0.7rem;
  margin-bottom: 0.85rem;
  background: var(--color-paper-warm);
  color: var(--color-text-sub);
  border: 1px solid var(--color-hairline);
}
.entry-tag--gold {
  background: var(--color-gold);
  color: var(--color-white);
  border-color: var(--color-gold);
}
.entry-tag--accent {
  background: rgba(42, 111, 184, 0.1);
  color: var(--color-gold-dark);
  border-color: var(--color-gold);
}
.entry-tag--navy {
  background: var(--color-navy);
  color: var(--color-gold-light);
  border-color: var(--color-navy);
}

.entry-title {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 0.9rem + 0.5vw, 1.4rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  margin: 0 0 0.5rem;
  color: var(--color-ink);
}
.entry-theme {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  margin: 0 0 0.5rem;
  color: var(--color-navy);
  letter-spacing: 0.04em;
}
.entry-meta {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  margin: 0 0 0.5rem;
  line-height: 1.7;
}
.entry-note {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin: 0.5rem 0 0;
  font-style: italic;
}
.entry-sponsor {
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--color-hairline);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

.timeline-item--small .entry-title {
  font-size: 1.05rem;
  font-weight: 500;
}
.timeline-item--break {
  padding-bottom: 1rem;
  opacity: 0.65;
}
.timeline-item--break .entry-title {
  font-size: 0.9rem;
  font-weight: 400;
  font-style: italic;
  color: var(--color-text-muted);
}
.timeline-item--feature .entry {
  background: var(--color-paper-warm);
  padding: 1.5rem 1.5rem 1.5rem 2.5rem;
  margin-left: 1rem;
  position: relative;
  border-left: 2px solid var(--color-gold);
}
.timeline-item--feature .entry::before {
  content: "";
  position: absolute;
  left: -3rem;
  top: 1.75rem;
  width: 3rem;
  height: 1px;
  background: var(--color-gold);
}

/* Speaker list */
.speaker-list {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--color-hairline);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.speaker-list li {
  display: grid;
  grid-template-columns: 110px 140px 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: 0.4rem 0;
  border-bottom: 1px dashed transparent;
  transition: border-color var(--duration-fast) var(--ease-out);
}
.speaker-list li:hover {
  border-bottom-color: var(--color-hairline);
}
.speaker-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-ink);
}
.speaker-affil {
  font-size: 0.78rem;
  color: var(--color-text-sub);
}
.speaker-title {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-navy);
}

@media (max-width: 880px) {
  .timeline::before { left: 18px; }
  .timeline-item { grid-template-columns: 1fr; gap: 0.5rem; }
  .timeline-item .time {
    text-align: left;
    padding-left: 36px;
    padding-right: 0;
    font-size: 0.85rem;
  }
  .timeline-item .time::after {
    left: 14px;
    right: auto;
    top: 0.4rem;
  }
  .timeline-item .entry {
    padding-left: 36px;
  }
  .timeline-item--feature .entry {
    margin-left: 0;
    padding-left: 1.25rem;
  }
  .timeline-item--feature .entry::before { display: none; }
  .speaker-list li {
    grid-template-columns: 1fr;
    gap: 0.15rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--color-hairline);
  }
}

/* Rooms grid (Room 2 + 3) */
.rooms-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-top: 5rem;
  padding-top: 4rem;
  border-top: 2px solid var(--color-navy);
  position: relative;
}
.rooms-grid::before {
  content: "—  Parallel Sessions  —";
  position: absolute;
  top: -0.85rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-latin);
  font-size: 0.85rem;
  font-style: italic;
  letter-spacing: 0.2em;
  color: var(--color-gold-dark);
  background: var(--color-paper);
  padding: 0 1.5rem;
}

.room--sub, .room--hands {
  margin-bottom: 0;
  padding: 2rem;
  border: 1px solid var(--color-hairline);
  background: var(--color-paper-warm);
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}
.room--sub:hover, .room--hands:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px -20px rgba(10, 22, 40, 0.2);
}

.room--sub .mark-num { color: var(--color-navy); border-color: var(--color-navy); }
.room--hands .mark-num { color: var(--color-gold-dark); border-color: var(--color-gold); }

.room-body { font-size: 0.95rem; }
.room-session {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--color-navy);
}
.room-meta {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  margin: 0 0 0.85rem;
}
.room-text {
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--color-text);
  margin: 0;
}
.room-text strong { color: var(--color-gold-dark); }

.hands-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-hairline);
}
.hands-card:last-child { border-bottom: 0; }
.hands-num {
  font-family: var(--font-latin);
  font-size: 1.85rem;
  font-style: italic;
  font-weight: 400;
  color: var(--color-gold);
  line-height: 1;
}
.hands-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
  color: var(--color-ink);
  line-height: 1.5;
}
.hands-meta {
  font-size: 0.82rem;
  color: var(--color-text-sub);
  margin: 0;
}
.hands-sponsor {
  font-size: 0.74rem;
  color: var(--color-text-muted);
  margin: 0.3rem 0 0;
  letter-spacing: 0.05em;
}

@media (max-width: 880px) {
  .rooms-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* ---------- ACCESS ---------- */
.access {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.85);
}
.access .section-num,
.access .title-en { color: var(--color-gold-light); }
.access .title-jp { color: rgba(255, 255, 255, 0.5); }

.access-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: stretch;
  max-width: var(--width-content);
  margin: 0 auto;
}

.access-info {
  padding: 2rem 0;
}
.access-name {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin: 0 0 0.5rem;
  color: var(--color-white);
  line-height: 1.3;
}
.access-name span {
  display: block;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-gold-light);
  margin-top: 0.25rem;
}

.access-address {
  font-size: 0.9rem;
  line-height: 2;
  color: rgba(255, 255, 255, 0.7);
  margin: 0 0 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.access-routes {
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.access-routes li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 1rem;
  align-items: center;
}
.route-tag {
  font-family: var(--font-latin);
  font-size: 0.75rem;
  font-style: italic;
  letter-spacing: 0.15em;
  padding: 0.3rem 0;
  text-align: center;
  border: 1px solid var(--color-gold);
  color: var(--color-gold-light);
}
.route-text {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
}

.access .btn-ghost {
  color: var(--color-gold-light);
  border-color: var(--color-gold);
}
.access .btn-ghost:hover {
  background: var(--color-gold);
  color: var(--color-navy-deep);
  border-color: var(--color-gold);
}

/* Map illustration */
.access-map {
  position: relative;
  min-height: 460px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(135deg, var(--color-navy-deep) 0%, var(--color-navy) 100%);
  overflow: hidden;
}
.map-frame {
  position: absolute;
  inset: 0;
}
.map-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(0deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}
.map-roads {
  position: absolute;
  inset: 0;
}
.road {
  position: absolute;
  background: rgba(122, 176, 222, 0.18);
}
.road--horizontal { left: 0; right: 0; top: 60%; height: 8px; }
.road--vertical { top: 0; bottom: 0; left: 35%; width: 6px; }
.road--diagonal {
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  top: 25%;
  transform: rotate(8deg);
  transform-origin: left;
  background: rgba(122, 176, 222, 0.12);
}

.map-pin {
  position: absolute;
  top: 35%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  width: 60px;
  height: 60px;
  display: grid;
  place-items: center;
}
.pin-dot {
  position: relative;
  width: 14px;
  height: 14px;
  background: var(--color-gold);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(42, 111, 184, 0.3);
  z-index: 3;
}
.pin-pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--color-gold);
  animation: pinPulse 2.5s var(--ease-out) infinite;
}
@keyframes pinPulse {
  0%   { transform: scale(0.3); opacity: 1; }
  100% { transform: scale(1.5); opacity: 0; }
}

.map-labels { position: absolute; inset: 0; }
.label {
  position: absolute;
  font-family: var(--font-latin);
  font-size: 0.78rem;
  font-style: italic;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.5);
  padding: 0.3rem 0.6rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.label--building {
  top: 38%;
  left: 56%;
  color: var(--color-gold-light);
  border-color: var(--color-gold);
  background: rgba(0, 21, 48, 0.6);
}
.label--station { bottom: 32%; left: 12%; }
.label--river { top: 12%; right: 10%; color: rgba(96, 165, 250, 0.5); }

@media (max-width: 880px) {
  .access-grid { grid-template-columns: 1fr; gap: 2rem; }
  .access-map { min-height: 320px; }
}

/* ---------- REGISTRATION CTA ---------- */
.registration {
  background: var(--color-paper);
  padding: var(--space-section) 0 calc(var(--space-section) - 2rem);
}

.registration-card {
  max-width: var(--width-content);
  margin: 0 auto;
  padding: clamp(3rem, 2rem + 4vw, 5rem);
  background: linear-gradient(135deg, var(--color-paper-warm) 0%, var(--color-paper) 100%);
  border: 1px solid var(--color-hairline);
  text-align: center;
  position: relative;
}
.registration-card::before,
.registration-card::after {
  content: "";
  position: absolute;
  width: 24px;
  height: 24px;
  border: 1px solid var(--color-gold);
}
.registration-card::before { top: 12px; left: 12px; border-right: 0; border-bottom: 0; }
.registration-card::after  { bottom: 12px; right: 12px; border-left: 0; border-top: 0; }

.registration-eyebrow {
  display: inline-block;
  font-family: var(--font-latin);
  font-size: 0.85rem;
  font-style: italic;
  letter-spacing: 0.3em;
  color: var(--color-gold-dark);
  margin-bottom: 1.25rem;
}
.registration-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1rem + 1.6vw, 2.4rem);
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.05em;
  margin: 0 0 1.5rem;
  color: var(--color-ink);
}
.registration-title em {
  font-family: var(--font-latin);
  font-style: italic;
  color: var(--color-gold-dark);
  font-weight: 500;
}
.registration-text {
  max-width: 540px;
  margin: 0 auto 2rem;
  font-size: 0.95rem;
  line-height: 2;
  color: var(--color-text-sub);
}

.registration-actions {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.registration-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-hairline);
  max-width: 540px;
  margin: 0 auto;
}
.registration-meta > div {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.registration-meta span {
  font-family: var(--font-latin);
  font-size: 0.7rem;
  font-style: italic;
  letter-spacing: 0.2em;
  color: var(--color-gold-dark);
}
.registration-meta strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-ink);
}

@media (max-width: 540px) {
  .registration-meta { grid-template-columns: 1fr; gap: 1rem; }
  .registration-actions { flex-direction: column; align-items: stretch; }
}

/* ---------- FOOTER ---------- */
.site-footer {
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.7);
  padding: 4rem 0 2rem;
}

.footer-inner {
  max-width: var(--width-max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 1rem + 2vw, 3rem);
  display: grid;
  grid-template-columns: 1.2fr 1.5fr 1fr;
  gap: 3rem;
  align-items: start;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.footer-en {
  font-family: var(--font-latin);
  font-size: 1rem;
  font-style: italic;
  letter-spacing: 0.1em;
  line-height: 1.5;
  color: var(--color-gold-light);
}
.footer-ja {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-white);
}

.footer-meta { padding-top: 0.4rem; }
.footer-theme {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  margin: 0 0 0.5rem;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.05em;
}
.footer-date {
  font-family: var(--font-latin);
  font-size: 0.85rem;
  font-style: italic;
  letter-spacing: 0.08em;
  margin: 0;
  color: var(--color-gold-light);
}

.footer-next {
  border-left: 1px solid rgba(255, 255, 255, 0.1);
  padding-left: 2rem;
}
.next-label {
  display: inline-block;
  font-family: var(--font-latin);
  font-size: 0.75rem;
  font-style: italic;
  letter-spacing: 0.25em;
  color: var(--color-gold-dark);
  margin-bottom: 0.5rem;
}
.next-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--color-white);
  letter-spacing: 0.05em;
}
.next-chair {
  font-size: 0.82rem;
  margin: 0;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}
.next-chair span {
  display: block;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 0.15rem;
}

.footer-base {
  max-width: var(--width-max);
  margin: 0 auto;
  padding: 1.5rem clamp(1.25rem, 1rem + 2vw, 3rem) 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.footer-base small {
  font-family: var(--font-latin);
  font-size: 0.72rem;
  font-style: italic;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.4);
}

@media (max-width: 880px) {
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer-next { border-left: 0; padding-left: 0; padding-top: 1.5rem; border-top: 1px solid rgba(255, 255, 255, 0.1); }
  .footer-base { flex-direction: column; }
}

/* ---------- REVEAL ANIMATION ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- PRINT ---------- */
@media print {
  .site-header, .hero-scroll, .nav-toggle, .mobile-nav { display: none !important; }
  .hero { min-height: auto; padding: 2rem 0; }
  .section { padding: 2rem 0; break-inside: avoid; }
  body { color: black; background: white; }
}

/* =========================================================
   ADDITIONS — Polished editorial revision
   ========================================================= */

/* ---------- HERO STAMP (commemorative) ---------- */
.hero-stamp {
  position: absolute;
  top: clamp(7rem, 8vw, 10rem);
  right: clamp(1.5rem, 4vw, 5rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--color-gold);
  background: rgba(250, 250, 245, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transform: rotate(2deg);
  z-index: 1;
  pointer-events: none;
}
.hero-stamp::before,
.hero-stamp::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--color-gold);
  border-radius: 50%;
}
.hero-stamp::before { top: -4px; left: 50%; transform: translateX(-50%); }
.hero-stamp::after  { bottom: -4px; left: 50%; transform: translateX(-50%); }
.stamp-line {
  font-family: var(--font-latin);
  font-size: 0.7rem;
  font-style: italic;
  letter-spacing: 0.18em;
  color: var(--color-gold-dark);
}
.stamp-jp {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--color-navy);
  padding-left: 0.35em;
}

@media (max-width: 980px) {
  .hero-stamp {
    top: auto;
    bottom: 5rem;
    right: 1.25rem;
    transform: rotate(2deg) scale(0.85);
    transform-origin: right bottom;
  }
}
@media (max-width: 540px) {
  .hero-stamp { display: none; }
}

/* ---------- GREETING — Editorial polish ---------- */
.greeting-pull cite {
  display: block;
  margin-top: 1rem;
  font-family: var(--font-latin);
  font-size: 0.85rem;
  font-style: italic;
  letter-spacing: 0.12em;
  color: var(--color-gold-dark);
  font-weight: 500;
}

.greeting-h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-navy);
  margin: 2.25rem 0 0.85rem;
  padding-left: 1rem;
  position: relative;
  line-height: 1.6;
}
.greeting-h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  background: var(--color-gold);
  border-radius: 50%;
}

.dropcap {
  float: left;
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  padding: 0.15em 0.18em 0 0;
  color: var(--color-navy);
}

.portrait-bio {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--color-hairline);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.78rem;
  line-height: 1.55;
}
.portrait-bio li {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 0.75rem;
  align-items: baseline;
}
.portrait-bio li > span {
  font-family: var(--font-latin);
  font-size: 0.7rem;
  font-style: italic;
  letter-spacing: 0.16em;
  color: var(--color-gold-dark);
  text-transform: uppercase;
}
.portrait-bio li > strong {
  font-weight: 500;
  color: var(--color-text);
}

/* ---------- PILLARS (Theme detail) ---------- */
.pillars {
  background: var(--color-paper-warm);
  position: relative;
}
.pillars::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-hairline);
}

.pillars-grid {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: var(--width-max);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-hairline);
  border: 1px solid var(--color-hairline);
}

.pillar {
  position: relative;
  padding: 2.25rem 1.75rem 2rem;
  background: var(--color-paper);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: background var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out);
  overflow: hidden;
}
.pillar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width var(--duration-slow) var(--ease-out);
}
.pillar:hover {
  background: var(--color-white);
}
.pillar:hover::before { width: 100%; }

.pillar-num {
  font-family: var(--font-latin);
  font-size: 0.85rem;
  font-style: italic;
  letter-spacing: 0.25em;
  color: var(--color-gold-dark);
}

.pillar-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin: 0;
  color: var(--color-ink);
  line-height: 1.4;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.pillar-title span {
  font-family: var(--font-latin);
  font-size: 0.78rem;
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--color-text-sub);
}

.pillar-text {
  font-size: 0.88rem;
  line-height: 1.85;
  color: var(--color-text-sub);
  margin: 0;
  flex: 1;
}

.pillar-tag {
  display: inline-block;
  align-self: flex-start;
  margin-top: 0.5rem;
  font-family: var(--font-latin);
  font-size: 0.7rem;
  font-style: italic;
  letter-spacing: 0.18em;
  padding: 0.3rem 0.7rem;
  background: rgba(42, 111, 184, 0.08);
  color: var(--color-gold-dark);
  border: 1px solid rgba(42, 111, 184, 0.4);
}

.pillar--core {
  background: var(--color-navy);
  color: var(--color-white);
}
.pillar--core::before { width: 100%; }
.pillar--core .pillar-num { color: var(--color-gold-light); }
.pillar--core .pillar-title { color: var(--color-white); }
.pillar--core .pillar-title span { color: var(--color-gold-light); }
.pillar--core .pillar-text { color: rgba(255, 255, 255, 0.78); }
.pillar--core .pillar-tag {
  background: var(--color-gold);
  color: var(--color-navy-deep);
  border-color: var(--color-gold);
}
.pillar--core:hover { background: var(--color-navy-deep); }

.pillars-footer {
  max-width: var(--width-max);
  margin: 2rem auto 0;
  text-align: center;
  font-size: 0.9rem;
  line-height: 2;
  color: var(--color-text-sub);
}
.pillars-footer strong {
  color: var(--color-navy);
  font-weight: 700;
}

@media (max-width: 880px) {
  .pillars-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .pillars-grid { grid-template-columns: 1fr; }
}

/* ---------- SPEAKERS GRID ---------- */
.speakers { background: var(--color-paper); }

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-hairline);
  border: 1px solid var(--color-hairline);
  max-width: var(--width-max);
  margin: 0 auto;
}

.sp-card {
  padding: 1.5rem 1.5rem 1.75rem;
  background: var(--color-paper);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: background var(--duration-base) var(--ease-out);
  position: relative;
  min-height: 180px;
}
.sp-card:hover { background: var(--color-paper-warm); }

.sp-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.5rem;
  width: 22px;
  height: 2px;
  background: var(--color-gold);
}

.sp-tag {
  font-family: var(--font-latin);
  font-size: 0.7rem;
  font-style: italic;
  letter-spacing: 0.16em;
  color: var(--color-gold-dark);
  padding-top: 0.85rem;
}

.sp-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0;
  color: var(--color-ink);
  line-height: 1.4;
}

.sp-affil {
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--color-text-sub);
  margin: 0;
  flex: 1;
}

.sp-card--chair {
  background: var(--color-navy);
  color: var(--color-white);
}
.sp-card--chair:hover { background: var(--color-navy-deep); }
.sp-card--chair .sp-tag { color: var(--color-gold-light); }
.sp-card--chair .sp-name { color: var(--color-white); }
.sp-card--chair .sp-affil { color: rgba(255, 255, 255, 0.78); }
.sp-card--chair::before { background: var(--color-gold); }

.sp-card--ghost { background: var(--color-paper-warm); }
.sp-card--ghost .sp-name { color: var(--color-text-sub); font-style: italic; font-weight: 500; }

@media (max-width: 1024px) {
  .speakers-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .speakers-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .speakers-grid { grid-template-columns: 1fr; }
}

/* ---------- PARTNERS ---------- */
.partners {
  background: var(--color-paper-warm);
  position: relative;
}
.partners::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-hairline);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  max-width: var(--width-content);
  margin: 0 auto;
}

.partner-group {
  padding: 2rem 1.5rem;
  border-right: 1px solid var(--color-hairline);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.partner-group:last-child { border-right: 0; }

.partner-cat {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-navy);
  margin: 0 0 0.15rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-gold);
  display: inline-block;
  align-self: flex-start;
}
.partner-cat-sub {
  font-family: var(--font-latin);
  font-size: 0.78rem;
  font-style: italic;
  letter-spacing: 0.1em;
  color: var(--color-gold-dark);
  margin: 0 0 0.5rem;
}

.partner-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.partner-list li {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-ink);
  padding: 0.5rem 0.85rem;
  background: var(--color-paper);
  border: 1px solid var(--color-hairline);
}

@media (max-width: 880px) {
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-group { border-right: 0; border-bottom: 1px solid var(--color-hairline); }
  .partner-group:nth-child(even) { border-right: 0; }
  .partner-group:nth-child(2n+1) { border-right: 1px solid var(--color-hairline); }
}
@media (max-width: 540px) {
  .partners-grid { grid-template-columns: 1fr; }
  .partner-group { border-right: 0 !important; }
  .partner-group:last-child { border-bottom: 0; }
}

/* ---------- FOOTER additions ---------- */
.footer-chair {
  font-family: var(--font-latin);
  font-size: 0.78rem;
  font-style: italic;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.55);
  margin: 0.5rem 0 0;
}


/* =========================================================
   MEDICAL JOURNAL POLISH — typography density + linkable cards
   ========================================================= */

/* Tighter line-height & weight for medical journal feel */
body { line-height: 1.7; letter-spacing: 0.015em; }
.hero-title em { font-family: var(--font-latin); font-weight: 500; }
.title-en { font-style: normal; font-weight: 300; letter-spacing: 0.04em; text-transform: uppercase; }
.section-num,
.theme-label,
.eyebrow-mark + span,
.hero-eyebrow > span,
.row-tag,
.entry-tag,
.pillar-num,
.sp-tag,
.partner-cat-sub,
.brand-en,
.numeral-vol,
.numeral-th,
.numeral-figure,
.row-time,
.entry-meta time,
.timeline-item .time,
.row-arrow,
.next-label,
.registration-eyebrow,
.footer-en,
.footer-date,
.stamp-line,
.scroll-line + span,
.sign-name-en,
.portrait-name-en,
.portrait-tag,
.portrait-role,
.greeting-pull cite,
.theme-en,
.theme-en span,
.card-label,
.date-y,
.date-d,
.partner-cat-sub,
.access-routes .route-tag,
.brand-mark-text,
.mark-num,
.mark-tag,
.hands-num,
.label,
.hero-scroll span:first-child,
.entry-sponsor,
.hands-sponsor,
.footer-base small {
  font-family: var(--font-latin);
  font-style: normal;
  font-feature-settings: "tnum" 1, "ss01" 1;
}

/* Hero numerals: clinical mono with tabular rhythm */
.numeral-figure {
  font-weight: 600;
  letter-spacing: -0.02em;
}
.numeral-vol, .numeral-th { font-weight: 400; }

/* Section title — sans clinical (Inter) */
.title-en { font-family: var(--font-display); }
.title-jp { font-family: var(--font-display); font-weight: 500; }

/* Hero & section title weight refinement */
.hero-title { font-family: var(--font-display); font-weight: 700; letter-spacing: 0.04em; }
.theme-jp { font-family: var(--font-display); font-weight: 700; letter-spacing: 0.04em; }
.section-title { letter-spacing: 0; }

/* Cross / plus medical accent for h3 */
.greeting-h3 { font-family: var(--font-display); font-weight: 700; }
.greeting-h3::before {
  content: "+";
  background: transparent;
  width: auto;
  height: auto;
  top: 0.2em;
  font-family: var(--font-latin);
  color: var(--color-gold);
  font-size: 1.4em;
  font-weight: 400;
  line-height: 1;
}

/* Drop cap — Plex Mono numeric style */
.dropcap {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 3.4rem;
  color: var(--color-navy);
}

/* Greeting body — slightly tighter, journal-like */
.greeting-text p {
  font-size: 0.98rem;
  line-height: 1.95;
}

/* Pull quote — clinical sans, bigger, less ornate */
.greeting-pull p {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.5;
}
.greeting-pull cite { font-style: normal; }
.quote-mark {
  font-family: var(--font-latin);
  font-weight: 400;
  font-size: 3rem;
}

/* Times monospace alignment */
.timeline-item .time,
.row-time,
.hero-meta time,
.schedule-row,
.date-md {
  font-feature-settings: "tnum" 1;
  font-variant-numeric: tabular-nums;
}

/* Hero stamp adjustments */
.stamp-jp { font-family: var(--font-display); font-weight: 700; letter-spacing: 0.25em; }

/* Smooth scroll offset for fixed header */
:root { scroll-padding-top: 88px; }
#room-main, #room-sub, #room-hands,
#symposium-1, #special-1, #special-2 {
  scroll-margin-top: 88px;
}

/* ---------- SCHEDULE ROW — clickable card ---------- */
.schedule-row {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  display: grid;
  grid-template-columns: 100px 200px 160px 1fr 24px;
  position: relative;
}
.schedule-row .row-arrow {
  font-family: var(--font-latin);
  font-size: 1.1rem;
  color: var(--color-text-muted);
  transition: transform var(--duration-base) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
  text-align: right;
  align-self: center;
}
.schedule-row:hover .row-arrow {
  color: var(--color-gold);
  transform: translateX(6px);
}
.schedule-row:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: -2px;
}

@media (max-width: 880px) {
  .schedule-row { grid-template-columns: auto auto; }
  .row-arrow { display: none; }
}

/* ---------- PILLAR — now an <a> link ---------- */
.pillars-grid li { list-style: none; }

a.pillar {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

a.pillar:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: -2px;
}

.pillar-tag em {
  font-style: normal;
  font-family: var(--font-latin);
  margin-left: 0.4em;
  font-size: 0.85em;
  display: inline-block;
  transition: transform var(--duration-base) var(--ease-out);
}
a.pillar:hover .pillar-tag em {
  transform: translate(2px, -2px);
}
a.pillar:hover .pillar-tag {
  background: var(--color-gold);
  color: var(--color-white);
  border-color: var(--color-gold);
}
a.pillar.pillar--core:hover .pillar-tag {
  background: var(--color-gold-light);
  color: var(--color-navy-deep);
}

/* ---------- TIMELINE-ITEM ID HIGHLIGHT (target glow) ---------- */
.timeline-item:target .entry,
.room:target {
  animation: targetPulse 1.6s var(--ease-out) 1;
}
@keyframes targetPulse {
  0%   { box-shadow: 0 0 0 0 rgba(42, 111, 184, 0.4); }
  60%  { box-shadow: 0 0 0 12px rgba(42, 111, 184, 0); }
  100% { box-shadow: 0 0 0 0 rgba(42, 111, 184, 0); }
}

/* ---------- HERO STAMP rotates slightly less for sober feel ---------- */
.hero-stamp { transform: rotate(0deg); }

/* Body kana refinement */
body { font-feature-settings: "palt" 1, "calt" 1; }