/* ================================================================
   00. DESIGN TOKENS — KAIST brand palette and shared values
================================================================ */

:root {
  --kaist-dark-blue: #004191;
  --kaist-medium-blue: #004187;
  --kaist-blue: #1487c8;
  --kaist-light-blue: #5fbeeb;
  --kaist-dark-gray: #7c7c7c;
  --color-navy: var(--kaist-dark-blue);
  --color-blue-dark: var(--kaist-medium-blue);
  --color-blue: var(--kaist-blue);
  --color-blue-light: var(--kaist-light-blue);
  --color-text: #18364f;
  --color-muted: #62798e;
  --color-border: #cfdeea;
  --color-border-strong: #9fb4c7;
  --color-bg: #ffffff;
  --color-bg-muted: #f1f7fb;
  --color-bg-soft-blue: #f6fbfe;
  --color-info-bg: #eef8fd;
  --color-info-border: #9ed5f1;
  --color-note-bg: #fff8e8;
  --color-note-border: #e9b84f;
  --color-note-text: #765000;
  --color-overlay-dark: rgba(0, 39, 84, 0.9);
  --color-overlay-soft: rgba(0, 39, 84, 0.2);
  --color-header-bg: rgba(255, 255, 255, 0.96);
  --color-white-muted: rgba(255, 255, 255, 0.82);
  --color-footer-border: rgba(255, 255, 255, 0.18);
  --color-motif-transparent: rgba(95, 190, 235, 0);
  --color-motif-light: rgba(95, 190, 235, 0.3);
  --color-motif-blue: rgba(20, 135, 200, 0.72);
  --color-motif-dark: rgba(0, 65, 145, 0.92);
  --color-hero-glow: rgba(95, 190, 235, 0.22);
  --color-dialog-backdrop: rgba(0, 39, 84, 0.64);
  --shadow-card: 0 18px 45px rgba(0, 65, 145, 0.12);
  --shadow-dialog: 0 24px 70px rgba(0, 39, 84, 0.3);
  --shadow-button: 0 10px 22px rgba(20, 135, 200, 0.24);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 999px;
  --link-underline-thickness: 1.5px;
  --link-underline-offset: 4px;
  --max-width: 1120px;
}

/* ================================================================
   01. RESET AND BASE ELEMENTS
================================================================ */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
}

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

figure {
  margin: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--color-blue-light);
  outline-offset: 3px;
}

/* ================================================================
   02. TYPOGRAPHY AND TEXT LINKS
================================================================ */

h1,
h2,
h3 {
  color: inherit;
  line-height: 1.2;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(2.5rem, 4vw, 3.2rem);
  letter-spacing: -0.055em;
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 3vw, 2.3rem);
  letter-spacing: -0.04em;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

p {
  margin-top: 0;
}

.eyebrow,
.section-label,
.info-box__eyebrow {
  margin: 0 0 10px;
  color: var(--color-blue);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow {
  font-size: 0.9rem;
}

a,
a:visited {
  color: inherit;
  text-decoration: none;
  text-decoration-thickness: var(--link-underline-thickness);
  text-underline-offset: var(--link-underline-offset);
}

a:hover,
a:focus-visible {
  color: var(--color-blue);
  text-decoration: underline;
}

/* 이메일 링크 */
a[href^="mailto:"],
a[href^="mailto:"]:visited {
  color: var(--color-blue);
}

/* ================================================================
   03. SHARED LAYOUT
================================================================ */

.container {
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
}

.page-main {
  min-height: 70vh;
}

.section {
  padding: 72px 0;
}

.page-title+.section {
  padding-top: 48px;
}

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

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.content-narrow {
  max-width: 820px;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  gap: 52px;
}

.card-grid {
  display: grid;
  gap: 24px;
}

.card-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

/* ================================================================
   04. HEADER AND MAIN NAVIGATION
================================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-header-bg);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.site-logo,
.site-logo:visited {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-navy);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.site-logo:hover,
.site-logo:focus-visible {
  color: var(--color-navy);
  text-decoration: none;
}

.logo-mark {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--color-bg);
  background: var(--color-navy);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
}

.logo-text {
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.95rem;
  font-weight: 650;
}

.site-nav a,
.site-nav a:visited {
  color: var(--color-text);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-blue);
  text-decoration: none;
}

.site-nav a[aria-current],
.site-nav a[aria-current]:hover {
  color: var(--color-blue);
  font-weight: 750;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--color-navy);
}

/* ================================================================
   05. SHARED PAGE TITLE — KAIST curved graphic motif
================================================================ */

.page-title {
  position: relative;
  z-index: 0;
  isolation: isolate;
  overflow: hidden;
  padding: 62px 0;
  background: linear-gradient(135deg, var(--color-bg-soft-blue) 0%, var(--color-bg) 76%);
  border-bottom: 1px solid var(--color-border);
}

.page-title::before {
  content: "";
  position: absolute;
  right: -10%;
  bottom: -88px;
  z-index: 0;
  width: min(78vw, 980px);
  height: 185px;
  background: linear-gradient(90deg,
      var(--color-motif-transparent) 3%,
      var(--color-motif-light) 30%,
      var(--color-motif-blue) 68%,
      var(--color-motif-dark) 100%);
  border-radius: 50%;
  transform: rotate(-2deg);
}

.page-title>.container {
  position: relative;
  z-index: 1;
}

.page-title>.container>p:last-of-type {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 1.12rem;
}

/* ================================================================
   06. BUTTONS
================================================================ */

.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button,
.button:visited {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  color: var(--color-navy);
  background: var(--color-bg);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-weight: 750;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.button:hover,
.button:focus-visible {
  text-decoration: none;
  transform: translateY(-1px);
}

.button.primary,
.button.primary:visited {
  color: var(--color-bg);
  background: var(--color-blue);
  box-shadow: var(--shadow-button);
}

.button.primary:hover,
.button.primary:focus-visible {
  color: var(--color-bg);
  background: var(--color-blue-dark);
}

.button.secondary,
.button.secondary:visited {
  color: var(--color-text);
  background: var(--color-bg);
  border-color: var(--color-border-strong);
}

.button.secondary:hover,
.button.secondary:focus-visible {
  color: var(--color-blue);
  border-color: var(--color-blue);
}

/* ================================================================
   07. SHARED CARDS, TABLES AND LISTS
================================================================ */

.hero-card,
.info-card,
.speaker-card,
.contact-card,
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.info-card,
.speaker-card,
.contact-card {
  padding: 24px;
}

.info-card a,
.speaker-name-link,
.committee-name-link,
.hotel-reference-link,
.venue-detail-link,
.venue-card-link {
  font-weight: 750;
}

.info-card a {
  color: var(--color-blue);
}

a.venue-card-link,
a.venue-card-link:visited {
  color: var(--color-blue);
}

.table-wrapper,
.hotel-table-wrapper {
  overflow-x: auto;
  margin: 22px 0 34px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  min-width: 640px;
  background: var(--color-bg);
  border-collapse: collapse;
}

th,
td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--color-navy);
  background: var(--color-bg-muted);
}

tr:last-child td,
tr:last-child th {
  border-bottom: 0;
}

.check-list,
.number-list,
.person-list {
  margin: 0 0 32px;
  padding-left: 1.2rem;
}

.check-list li,
.number-list li,
.person-list li {
  margin-bottom: 8px;
}

.check-list li::marker,
.number-list li::marker,
.person-list li::marker {
  color: var(--color-blue);
}

/* ================================================================
   08. SHARED INFORMATION BOXES
   Orange = short note / Blue = titled information block
================================================================ */

.info-box {
  margin: 28px 0;
  padding: 20px 22px;
  border: 1px solid;
  border-radius: var(--radius-md);
}

.info-box--note {
  color: var(--color-text);
  background: var(--color-note-bg);
  border-color: var(--color-note-border);
}

.info-box--note strong {
  color: var(--color-note-text);
}

.info-box--feature {
  padding: 26px 28px;
  background: var(--color-info-bg);
  border-color: var(--color-info-border);
}

.info-box__title {
  margin: 0 0 14px;
  font-size: clamp(1.25rem, 2.5vw, 1.55rem);
  letter-spacing: -0.025em;
}

.info-box> :last-child {
  margin-bottom: 0;
}

.info-box .button {
  margin-top: 8px;
}

/* ================================================================
   09. FOOTER
================================================================ */

.site-footer {
  padding: 54px 0 24px;
  color: var(--color-white-muted);
  background: var(--color-navy);
}

.site-footer h2,
.site-footer h3 {
  color: var(--color-bg);
}

.site-footer a,
.site-footer a:visited {
  color: inherit;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--color-blue-light);
  text-decoration: underline;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 30px;
}

.footer-links p {
  margin: 0 0 2px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid var(--color-footer-border);
  font-size: 0.9rem;
}

.footer-bottom p {
  margin: 0;
}

.footer-kaist-link:hover,
.footer-kaist-link:focus-visible {
  text-decoration: none;
}

.footer-kaist-logo {
  width: 120px;
  height: auto;
}

/* ================================================================
   10. HOME — index.html
================================================================ */

.hero {
  padding: 92px 0;
  background: radial-gradient(circle at top left, var(--color-hero-glow), transparent 36%), linear-gradient(135deg, var(--color-bg-soft-blue) 0%, var(--color-bg) 58%, var(--color-bg-muted) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.7fr);
  gap: 48px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(3rem, 5vw, 4rem);
}

.hero-subtitle {
  max-width: 720px;
  margin: 0 0 28px;
  color: var(--color-muted);
  font-size: 1.2rem;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 26px 0 32px;
}

.hero-meta div {
  padding: 18px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.hero-meta strong,
.hero-meta span {
  display: block;
}

.hero-meta strong {
  color: var(--color-text);
}

.hero-meta span,
.date-list span {
  color: var(--color-muted);
}

.hero-card {
  padding: 28px;
  box-shadow: var(--shadow-card);
}

.date-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.date-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.date-list li:last-child {
  border-bottom: 0;
}

.date-list strong {
  color: var(--color-text);
  text-align: right;
  white-space: nowrap;
}

.about-conference-image {
  overflow: hidden;
  margin: 24px 0 30px;
  background: var(--color-bg-muted);
  border-radius: var(--radius-md);
  aspect-ratio: 5 / 3;
}

.about-conference-image img {
  width: 100%;
  height: 100%;
  max-height: 460px;
  object-fit: cover;
}

.centered-link {
  margin-top: 30px;
  text-align: center;
}

/* Home: continuous invited-speaker slider */

.speaker-slider {
  position: relative;
  overflow: hidden;
  margin-top: 32px;
}

.speaker-slider-track {
  position: relative;
  display: flex;
  gap: 22px;
  overflow-x: auto;
  padding: 4px 2px 14px;
  cursor: grab;
  user-select: none;
  touch-action: pan-y;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
}

.speaker-slider-track::-webkit-scrollbar {
  display: none;
}

.speaker-slider-track.is-dragging {
  cursor: grabbing;
}

.speaker-slide,
.speaker-slide:visited {
  position: relative;
  display: block;
  flex: 0 0 calc((100% - 66px) / 4);
  overflow: hidden;
  color: var(--color-bg);
  background: var(--color-bg-muted);
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 5;
  text-decoration: none;
}

.speaker-slide:hover,
.speaker-slide:focus-visible {
  color: var(--color-bg);
  text-decoration: none;
}

.speaker-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--color-overlay-dark) 0%, var(--color-overlay-soft) 48%, transparent 72%);
  pointer-events: none;
}

.speaker-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  -webkit-user-drag: none;
  transition: transform 0.35s ease;
}

.speaker-slide:hover img,
.speaker-slide:focus-visible img {
  transform: scale(1.04);
}

.speaker-slide-info {
  position: absolute;
  right: 20px;
  bottom: 18px;
  left: 20px;
  z-index: 1;
}

.speaker-slide-info h3 {
  margin: 0 0 5px;
  color: var(--color-bg);
  font-size: 1.2rem;
}

.speaker-slide-info p {
  margin: 0;
  color: var(--color-white-muted);
  font-size: 0.9rem;
  line-height: 1.4;
}

.speaker-slider-button {
  position: absolute;
  top: 50%;
  z-index: 3;
  display: grid;
  width: 46px;
  height: 46px;
  padding: 0;
  color: var(--color-bg);
  background: var(--color-overlay-dark);
  border: 0;
  border-radius: 50%;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  place-items: center;
  transform: translateY(-50%);
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.speaker-slider-prev {
  left: 14px;
}

.speaker-slider-next {
  right: 14px;
}

.speaker-slider-button:hover,
.speaker-slider-button:focus-visible {
  color: var(--color-bg);
  background: var(--color-blue);
}

.speaker-slider-button:hover {
  transform: translateY(-50%) scale(1.06);
}

.speaker-slider-actions {
  margin-top: 22px;
  text-align: center;
}

/* ================================================================
   20. PROGRAM — program.html
================================================================ */

.program-downloads {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  margin: 32px 0 0;
}

.program-download-button,
.program-download-button:visited {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 72px;
  padding: 14px 16px;
  color: var(--color-navy);
  background: var(--color-bg);
  border: 1px solid var(--color-blue);
  border-radius: var(--radius-pill);
  font-weight: 800;
  line-height: 1.35;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.program-download-button:hover,
.program-download-button:focus-visible {
  color: var(--color-bg);
  background: var(--color-navy);
  text-decoration: none;
  transform: translateY(-5px);
  box-shadow: var(--shadow-button);
}

.program-download-button.is-preparing {
  cursor: not-allowed;
}

.program-days {
  display: grid;
  gap: 48px;
}

.program-day {
  scroll-margin-top: 100px;
}

.program-day-heading {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--color-navy);
}

.program-day-heading .section-label,
.program-day-heading h2 {
  margin: 0;
}

.schedule-list {
  overflow: hidden;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.schedule-item {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 24px;
  padding: 22px 24px;
  border-bottom: 1px solid var(--color-border);
}

.schedule-item:last-child {
  border-bottom: 0;
}

.schedule-item time {
  color: var(--color-blue);
  font-weight: 800;
  white-space: nowrap;
}

.schedule-content h3 {
  margin-bottom: 6px;
}

.schedule-content p {
  margin: 4px 0 0;
}

.schedule-meta {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.schedule-break {
  background: var(--color-bg-muted);
}

/* ================================================================
   30. SPEAKERS — speakers.html
================================================================ */

.speaker-photo {
  display: grid;
  overflow: hidden;
  margin-bottom: 18px;
  color: var(--color-muted);
  background: var(--color-bg-muted);
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  font-weight: 700;
  place-items: center;
}

.speaker-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.speaker-name-link {
  font-weight: inherit;
}

/* ================================================================
   40. REGISTRATION — registration.html
================================================================ */

.page-registration .button.primary {
  margin-top: 4px;
}

/* ================================================================
   50. ABSTRACT SUBMISSION — abstract.html
================================================================ */

.presenter-info-button {
  font-weight: 750;
}

.presenter-modal {
  width: min(100% - 32px, 680px);
  max-height: 80vh;
  padding: 0;
  overflow: auto;
  color: var(--color-text);
  background: var(--color-bg);
  border: 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-dialog);
}

.presenter-modal::backdrop {
  background: var(--color-dialog-backdrop);
  backdrop-filter: blur(3px);
}

.presenter-modal-content {
  position: relative;
  padding: 36px;
}

.presenter-modal-content h2 {
  margin-right: 48px;
}

.presenter-modal-content h3 {
  margin-top: 24px;
}

.presenter-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 38px;
  height: 38px;
  padding: 0;
  color: var(--color-navy);
  background: transparent;
  border: 0;
  border-radius: 50%;
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
}

.presenter-modal-close:hover,
.presenter-modal-close:focus-visible {
  background: var(--color-bg-muted);
}

.presenter-guideline-list {
  margin: 0 0 28px;
  padding-left: 1.3rem;
}

.presenter-guideline-list>li {
  margin-bottom: 10px;
  line-height: 1.65;
}

.presenter-guideline-list ul {
  margin-top: 8px;
  padding-left: 1.3rem;
}

.presenter-guideline-list ul li {
  margin-bottom: 5px;
}

.presenter-guideline-list li::marker,
.presenter-guideline-list strong {
  color: var(--color-navy);
}

/* ================================================================
   60. VENUE — venue.html and related pages
================================================================ */

/* 60-1. Venue main page */

.venue-layout {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
}

.venue-detail-link {
  font-size: 1.1rem;
}

.venue-photo {
  margin: 24px 0 0;
}

.venue-photo img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

.venue-photo figcaption {
  margin-top: 8px;
  color: var(--color-muted);
  font-size: 0.85rem;
  line-height: 1.4;
}

.venue-map {
  min-height: 360px;
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.venue-map iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 360px;
  border: 0;
}

.venue-information-section {
  padding-top: 40px;
}

.venue-information-grid .card {
  height: 100%;
  padding: 28px 30px;
  border-radius: var(--radius-lg);
}

.venue-information-grid .card h3 {
  margin-top: 0;
}

.venue-wifi-box {
  margin-top: 32px;
}

.venue-wifi-box p:last-child {
  margin-bottom: 0;
}

/* 60-2. Transportation */

.travel-content h2 {
  margin: 0 0 14px;
  font-size: clamp(1.25rem, 2.5vw, 1.55rem);
  letter-spacing: -0.025em;
}

.travel-content > h2 {
  margin-top: 20px;
}

.travel-content>.info-box:first-child {
  margin-top: 0;
}

/* Transportation links are the only persistent-link exception. */
.travel-content .inline-resource-link,
.travel-content .inline-resource-link:visited {
  color: var(--color-blue);
  font-weight: 650;
  text-decoration: underline;
  text-decoration-thickness: var(--link-underline-thickness);
  text-underline-offset: var(--link-underline-offset);
}

.travel-content .inline-resource-link:hover,
.travel-content .inline-resource-link:focus-visible {
  color: var(--color-blue-dark);
}

.travel-steps {
  margin: 0 0 32px;
  padding-left: 1.4rem;
}

.travel-steps li {
  margin-bottom: 10px;
  padding-left: 4px;
  line-height: 1.75;
}

.travel-steps li::marker {
  font-weight: 700;
}

.travel-substeps {
  margin: 10px 0 0;
  padding-left: 1.4rem;
  list-style: disc;
}

.travel-substeps li {
  margin-bottom: 10px;
  padding-left: 4px;
}

.travel-substeps li::marker {
  color: var(--color-navy);
}

.travel-substep-note {
  margin: 12px 0 0;
  color: var(--color-muted);
}

.travel-substep-note a {
  color: var(--color-blue);
  text-decoration: underline;
  text-decoration-thickness: var(--link-underline-thickness);
  text-underline-offset: var(--link-underline-offset);
}

.travel-substep-note a:hover,
.travel-substep-note a:focus-visible {
  color: var(--color-blue-dark);
}

.destination-box {
  margin: 30px 0 38px;
  padding: 24px 26px;
  background: var(--color-bg-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.destination-box > strong {
  color: var(--color-navy);
  font-size: clamp(1rem, 2.2vw, 1.2rem);
}

.destination-box > p:last-child {
  margin-bottom: 0;
}

.taxi-driver-message {
  margin: 18px 0;
  padding: 20px 18px;
  color: var(--color-navy);
  background: var(--color-bg);
  border: 2px solid var(--color-navy);
  border-radius: var(--radius-sm);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.4;
  text-align: center;
}

/* 60-3. Accommodation */

.hotel-table {
  min-width: 720px;
}

.hotel-table th:first-child {
  width: 32%;
}

.hotel-list-placeholder {
  padding: 32px;
  color: var(--color-muted);
  text-align: center;
}

.hotel-reference-link {
  display: inline-block;
  margin-top: 8px;
}

/* 60-4. Local information */

.local-info-section {
  margin-bottom: 64px;
}

.local-info-section > h2 {
  margin: 0 0 26px;
}

.local-feature {
  display: grid;
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}

.local-feature-weather {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

.local-feature-attractions {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
}

.local-feature-image {
  min-width: 0;
  overflow: hidden;
  margin: 0;
  background: var(--color-bg-muted);
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
}

.local-feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.local-feature-text {
  min-width: 0;
}

.local-feature-text p {
  margin: 0 0 16px;
  line-height: 1.75;
}

.local-feature-text p:last-of-type {
  margin-bottom: 0;
}

.local-info-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
}

.map-information-box {
  margin-top: 48px;
}

.useful-contacts-box {
  margin-top: 28px;
}

.useful-contacts-box .info-box__title {
  color: var(--color-note-text);
}

.useful-contacts-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.useful-contact-item h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--color-note-text);
}

.useful-contact-item strong {
  color: var(--color-text);
}

.useful-contact-item p,
.useful-contact-item ul {
  margin: 0;
  line-height: 1.7;
}

.useful-contact-item ul {
  padding-left: 1.2rem;
}

/* ================================================================
   70. ORGANIZATION — organization.html
================================================================ */

.organizer-card,
.sponsor-area {
  padding: 20px 24px;
  background: var(--color-bg-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.organizer-card {
  margin-bottom: 42px;
}

.organizer-card p {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.65;
}

.committee-table-wrapper {
  width: 100%;
  overflow-x: auto;
  margin-bottom: 42px;
  -webkit-overflow-scrolling: touch;
}

.committee-table {
  width: 100%;
  min-width: 680px;
  table-layout: fixed;
  border-collapse: collapse;
}

.committee-name-column {
  width: 25%;
}

.committee-institution-column {
  width: 50%;
}

.committee-country-column {
  width: 25%;
}

.committee-table th,
.committee-table td {
  padding: 12px;
  border-bottom: 1px solid var(--color-border-strong);
  text-align: left;
  vertical-align: top;
  line-height: 1.5;
}

.committee-role-row th {
  padding: 30px 0 12px;
  color: var(--color-navy);
  background: transparent;
  border-bottom: 1px solid var(--color-border-strong);
  font-size: 1.25rem;
  font-weight: 700;
}

.committee-table tbody:first-child .committee-role-row th {
  padding-top: 0;
}

.committee-name {
  color: var(--color-text);
  background: var(--color-bg-muted);
  font-weight: 600;
}

.committee-country {
  text-align: right;
  white-space: nowrap;
}

.committee-table tbody tr:last-child th,
.committee-table tbody tr:last-child td {
  border-bottom: 1px solid var(--color-border-strong);
}

.sponsor-area p {
  margin: 0;
  color: var(--color-muted);
}

/* ================================================================
   80. CODE OF CONDUCT — code-of-conduct.html
================================================================ */

.conduct-content h2 {
  margin: 0 0 14px;
  font-size: clamp(1.2rem, 3vw, 1.8rem);
}

.conduct-content p {
  line-height: 1.75;
}

.conduct-list {
  margin: 0 0 28px;
  padding-left: 1.3rem;
}

.conduct-list li {
  margin-bottom: 10px;
  padding-left: 4px;
  line-height: 1.7;
}

.conduct-list li::marker {
  color: var(--color-blue);
}

.conduct-notice {
  margin: 36px 0;
}

.conduct-actions {
  display: flex;
  margin-top: 30px;
}





.dev-note {
  padding: 12px 14px;
  color: #1f0f7e;
  background: #c3daf7;
  border: 1px dashed #177099;
}



/* ================================================================
   90. RESPONSIVE RULES
================================================================ */

@media (max-width: 920px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 72px;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px 16px 20px;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    width: 100%;
    padding: 12px 4px;
  }

  .hero-grid,
  .two-column,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-meta,
  .card-grid.three {
    grid-template-columns: 1fr;
  }

  .program-downloads {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .speaker-slider-track {
    gap: 20px;
  }

  .speaker-slide {
    flex-basis: clamp(180px, 55vw, 220px);
  }
}

@media (max-width: 760px) {
  .local-info-section {
    margin-bottom: 52px;
  }

  .local-feature-weather,
  .local-feature-attractions {
    grid-template-columns: 1fr;
  }

  .local-feature-image {
    aspect-ratio: 16 / 10;
  }

  .local-info-actions {
    flex-direction: column;
  }

  .local-info-actions .button,
  .info-box .button {
    width: 100%;
  }

  .useful-contacts-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }
}

@media (max-width: 700px) {
  .venue-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .venue-map,
  .venue-map iframe {
    min-height: 320px;
  }

  .info-box--feature {
    padding: 22px 20px;
  }

  .taxi-driver-message {
    padding: 18px 12px;
    font-size: 1.4rem;
  }

  .organizer-card {
    padding: 18px;
  }

  .committee-table {
    min-width: 620px;
    font-size: 0.95rem;
  }

  .committee-table th,
  .committee-table td {
    padding: 10px;
  }

  .conduct-list {
    padding-left: 1.15rem;
  }

  .conduct-actions .button {
    width: 100%;
  }
}

@media (max-width: 600px) {
  .speaker-slider-track {
    gap: 14px;
  }

  .speaker-slide {
    flex-basis: clamp(180px, 55vw, 220px);
  }

  .speaker-slider-button {
    width: 38px;
    height: 38px;
    font-size: 1.6rem;
  }

  .speaker-slider-prev {
    left: 8px;
  }

  .speaker-slider-next {
    right: 8px;
  }

  .speaker-slide-info {
    right: 14px;
    bottom: 14px;
    left: 14px;
  }

  .speaker-slide-info h3 {
    font-size: 1.05rem;
  }

  .speaker-slide-info p {
    font-size: 0.82rem;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 24px, var(--max-width));
  }

  .logo-text {
    display: none;
  }

  .hero,
  .section,
  .page-title {
    padding: 52px 0;
  }

  .page-title+.section {
    padding-top: 36px;
  }

  .page-title::before {
    right: -360px;
    bottom: -74px;
    width: 720px;
    height: 150px;
  }

  .date-list li {
    display: block;
  }

  .date-list strong {
    display: block;
    margin-top: 4px;
    text-align: left;
  }

  .program-downloads {
    grid-template-columns: 1fr;
  }

  .schedule-item {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 18px;
  }

  .program-day-heading {
    display: block;
  }

  .program-day-heading .section-label {
    margin-bottom: 6px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}

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

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