/* ============================================
   AAMT 2026 Nara - Main Stylesheet
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --color-primary: #00764C;
  --color-primary-light: #2E9B6F;
  --color-primary-dark: #005536;
  --color-accent: #C9A84C;
  --color-accent-light: #E0C97A;
  --color-bg: #FFFFFF;
  --color-bg-gray: #F4F7F5;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-text-white: #FFFFFF;
  --color-border: #D4DED8;
  --color-link: #0066cc;
  --font-base: "Noto Sans JP", "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;
  --width-content: 960px;
  --header-h: 52px;
}

/* --- Reset --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 段落：全体リセットで margin が 0 になるため、UA に近いブロック方向の余白を再設定 */
p {
  margin-block: 1em;
  margin-inline: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 150px);
}

body {
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  position: relative;
}

/* Asanoha pattern - left decoration */
body::before {
  content: "";
  position: fixed;
  top: 120px;
  left: -120px;
  width: 320px;
  height: 320px;
  background: url("../img/hemp-leaf-pattern.svg") no-repeat center / contain;
  opacity: .3;
  /* SVG already has opacity 0.2 */
  z-index: 0;
  pointer-events: none;
}

/* Asanoha pattern - right decoration */
body::after {
  content: "";
  position: fixed;
  bottom: 60px;
  right: -120px;
  width: 320px;
  height: 320px;
  background: url("../img/hemp-leaf-pattern.svg") no-repeat center / contain;
  opacity: .3;
  /* SVG already has opacity 0.2 */
  z-index: 0;
  pointer-events: none;
}

a {
  color: var(--color-link);
  text-decoration: underline;
  text-underline-offset: 0.15em;
  transition: opacity 0.2s;
}

/* 画像のみのロゴリンクは下線なし（一般的なヘッダー慣例） */
.g-header__logo {
  text-decoration: none;
}

a:hover {
  opacity: 0.7;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: bottom;
}

ul,
ol {
  list-style: none;
}

/* --- Layout --- */
.l-wrap {
  width: 100%;
  max-width: var(--width-content);
  margin: 0 auto;
  padding: 0 20px;
}

.u-text-right {
  text-align: right;
}

/* 画面には出さず読み上げだけ（外部リンクの補足など） */
.u-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* サイト共通：注釈・補足リスト（※・◆などの記号はHTML本文に書く） */
.note-list {
  margin: 0;
  padding-left: 0;
  list-style: none;
  font-size: 1em;
  color: var(--color-text);
  line-height: 1.8;
  text-indent: -1em;
  padding-left: 1em;
}

.note-list li {
  margin-bottom: 4px;
}

.note-list li:last-child {
  margin-bottom: 0;
}

/* 汎用的な注釈・補足（単一の段落やインライン用） */
.c-note {
  display: block;
  font-size: 1em;
  color: var(--color-text);
  line-height: 1.6;
  padding-left: 1em;
  text-indent: -1em;
}

/* 汎用リンクバナー（背景付き・左寄せ） */
.c-link-banner {
  background-color: #e6f2ed;
  /* 薄い緑色 */
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 4px;
}

.c-link-banner a {
  color: #0066cc;
  font-weight: 700;
  text-decoration: none;
  display: inline-block;
  line-height: 1.5;
}

.c-link-banner a:hover {
  text-decoration: underline;
  opacity: 0.8;
}

/* 汎用強調ブロック（キャンペーン等） */
.c-emphasis-block {
  margin: 2rem 0;
}

.c-emphasis-block__title {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.375em;
  margin-bottom: 1rem;
  display: block;
}

.c-emphasis-block__body {
  line-height: 1.8;
}

/* サイト共通：区切り線（トンマナ：金色のグラデーション＋菱形） */
.c-divider {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
  margin: 80px auto;
  position: relative;
  overflow: visible;
  max-width: 80%;
}

.c-divider::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-accent);
}

/* 汎用メディアブロック（写真＋テキスト） */
.c-media-block {
  display: flex;
  background-color: var(--color-bg-gray);
  padding: 24px;
  gap: 24px;
  border-radius: 4px;
  margin: 1rem 0;
}

.c-media-block__img {
  flex-shrink: 0;
  width: 150px;
}

.c-media-block__img img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--color-border);
}

.c-media-block__content {
  flex: 1;
}

/* スマホ表示 */
@media screen and (max-width: 640px) {
  .c-media-block {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px;
    gap: 16px;
  }

  .c-media-block__img {
    width: 100%;
    max-width: 180px;
  }
}

/* =====================
   Header
   ===================== */
.g-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  z-index: 1000;
  background: var(--color-primary);
  transition: box-shadow 0.3s;
}

.g-header.is-scrolled {
  box-shadow: 0 2px 12px rgba(0, 118, 76, 0.25);
}

.g-header__inner {
  max-width: var(--width-content);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.g-header__logo {
  display: flex;
  align-items: center;
  height: 100%;
}

.g-header__logo img {
  height: 42px;
  /* Balanced height for 64px header */
  width: auto;
  display: block;
}

.g-header__logo:hover {
  opacity: 0.8;
}

/* .g-header__logo-icon removed as logo is now an image */

.g-header__right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Lang Switch */
.lang-sw {
  display: flex;
  gap: 2px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  padding: 2px;
}

.lang-sw__link {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 4px;
  font-size: 0.8125em;
  font-family: var(--font-en);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.6);
  transition: all 0.2s;
}

.lang-sw__link.is-current {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-weight: 600;
}

.lang-sw__link:hover:not(.is-current) {
  color: #FFF;
  background: rgba(255, 255, 255, 0.08);
}

.header-nav__list {
  display: none;
}

/* Hamburger */
.g-header__hamburger {
  display: none;
  width: 26px;
  height: 18px;
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.g-header__hamburger span {
  display: block;
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: #FFF;
  border-radius: 1px;
  transition: all 0.3s;
}

.g-header__hamburger span:nth-child(1) {
  top: 0;
}

.g-header__hamburger span:nth-child(2) {
  top: 8px;
}

.g-header__hamburger span:nth-child(3) {
  top: 16px;
}

.g-header__hamburger.is-active span:nth-child(1) {
  top: 8px;
  transform: rotate(45deg);
}

.g-header__hamburger.is-active span:nth-child(2) {
  opacity: 0;
}

.g-header__hamburger.is-active span:nth-child(3) {
  top: 8px;
  transform: rotate(-45deg);
}

/* =====================
   Hero / Key Visual
   ===================== */
.kv {
  position: relative;
  margin-top: var(--header-h);
  background: #FFF;
  padding: 0 15px;
  text-align: center;
  background: rgb(255, 245, 222);
}

.kv__img {
  max-width: 1200px;
  margin: 0 auto;
}

.kv__img img {
  width: 100%;
  height: auto;
  display: block;
  /* box-shadow: 0 4px 20px rgba(73,55,89,0.08);*/
  /* slight themed shadow */
  background: #FFF;
  /* fallback for transparent images */
}

/* =====================
   TOC (Section Navigation)
   ===================== */
.toc {
  top: var(--header-h);
  z-index: 100;
  background: linear-gradient(135deg, #004D32 0%, #00764C 45%, #004D32 100%);
  padding: 24px 0;
  border-bottom: 2px solid var(--color-accent);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.toc .l-wrap {
  max-width: 1200px;
}

.toc__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 12px 16px;
  /* Space between buttons */
  margin: 0;
  padding: 0;
}

.toc__item {
  position: relative;
}

.toc__item a {
  display: inline-block;
  padding: 5px 20px;
  background: #FFFFFF;
  color: var(--color-primary);
  font-size: 0.875em;
  font-weight: 600;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid transparent;
  white-space: nowrap;
}

.toc__item a:hover {
  background: #F2F9F5;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
  color: var(--color-primary-light);
  border-color: rgba(0, 118, 76, 0.15);
  opacity: 1;
}

/* is-current: スクロール時の金色ハイライトは使用しない */
/* .toc__item a.is-current { } */

/* Old pseudo elements removed */
.toc__item a::after,
.toc__item a::before {
  display: none !important;
}


/* =====================
   Section Common
   ===================== */
.sec {
  padding: 56px 0;
}

.sec--gray {
  background: var(--color-bg-gray);
}

.sec--primary {
  background: var(--color-primary);
  color: var(--color-text-white);
}

.sec__title {
  font-size: 1.5em;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 28px;
  padding: 14px 24px 14px 32px;
  display: block;
  position: relative;
  letter-spacing: 0.06em;
  /* Warm ivory background */
  background: linear-gradient(135deg, #fefcf7 0%, #f8f3eb 50%, #f3ede4 100%);
  border-radius: 12px;
  /* Green-to-gold gradient left bar */
  border-left: 4px solid;
  border-image: linear-gradient(to bottom, var(--color-primary), var(--color-accent)) 1;
  /* Soft warm shadow */
  box-shadow:
    0 3px 12px rgba(180, 160, 120, 0.1),
    0 1px 4px rgba(180, 160, 120, 0.08);
}

/* Decorative deer image */
.sec__title::before {
  content: "";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background-color: rgba(201, 168, 76, 0.5);
  -webkit-mask-image: url("../img/deer-img.png");
  mask-image: url("../img/deer-img.png");
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: contain;
  mask-size: contain;
}

/* Warm gold underline accent */
.sec__title::after {
  content: "";
  position: absolute;
  bottom: 8px;
  left: 32px;
  right: 24px;
  height: 1px;
  background: linear-gradient(to right, var(--color-accent) 0%, rgba(201, 168, 76, 0.2) 30%, transparent 70%);
}

.sec--primary .sec__title {
  color: var(--color-text-white);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0%, rgba(201, 168, 76, 0.06) 100%);
  border-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.6), var(--color-accent)) 1;
  box-shadow:
    0 3px 12px rgba(0, 0, 0, 0.12),
    0 1px 4px rgba(0, 0, 0, 0.06);
}

.sec--primary .sec__title::after {
  background: linear-gradient(to right, var(--color-accent) 0%, rgba(255, 255, 255, 0.1) 30%, transparent 70%);
}

/* トップ冒頭の挨拶ブロック：段落どうしの間隔 */
.sec--opening .l-wrap>p:not(:last-child) {
  margin-bottom: 1.75em;
}

/* --- Section Sub-headings (h3, h4) --- */
.sec h3 {
  font-size: 1.25em;
  color: var(--color-primary);
  margin-top: 3.5rem;
  margin-bottom: 1.5rem;
  padding: 0 0 0.6rem 1.5rem;
  position: relative;
  font-weight: 700;
  line-height: 1.4;
  border-bottom: 1px solid var(--color-border);
}

.sec h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0.6rem;
  width: 4px;
  background: var(--color-accent);
  border-radius: 2px;
}

.sec h3::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 0.4rem;
  bottom: 1rem;
  width: 3px;
  background: var(--color-primary-light);
  opacity: 0.6;
}

.sec h4 {
  font-size: 1rem;
  color: var(--color-primary);
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  padding-left: 1.25rem;
  position: relative;
  font-weight: 700;
  border-bottom: 1px dotted var(--color-border);
  padding-bottom: 0.25rem;
}

.sec h4::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  width: 8px;
  height: 8px;
  background: var(--color-accent);
}

.text-section {
  margin-bottom: 56px;
}

.text-section p {
  font-size: 1em;
  line-height: 1.8;
  /* 見出し直下の余白は .sec__title に任せ、段落間のみ従来の詰め具合を維持 */
  margin: 0 0 12px;
  color: var(--color-text);
}

.text-section__link-box {
  background: #f5f5f5;
  padding: 24px;
  text-align: center;
  margin: 24px 0;
}

.text-section__link-box a {
  font-weight: bold;
  font-size: 0.9375em;
}

.policy-list {
  margin: 0;
  padding: 0;
}

.policy-list li {
  font-size: 1em;
  line-height: 1.8;
  margin-bottom: 8px;
  padding-left: 1em;
  text-indent: -1em;
}

/* =====================
   Topics / News
   ===================== */
.topics-list {
  max-height: 180px;
  overflow-y: auto;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin: 0;
  padding: 0;
}

/* Custom Webkit Scrollbar */
.topics-list::-webkit-scrollbar {
  width: 10px;
}

.topics-list::-webkit-scrollbar-track {
  background: var(--color-bg-gray);
  border-radius: 4px;
}

.topics-list::-webkit-scrollbar-thumb {
  background: #A8B6AE;
  border-radius: 4px;
  border: 2px solid var(--color-bg-gray);
}

.topics-list::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-light);
}

.topics-list__item {
  display: flex;
  align-items: baseline;
  border-bottom: 1px solid var(--color-border);
}

.topics-list__item:last-child {
  border-bottom: none;
}

.topics-list__item:nth-child(odd) {
  background: var(--color-bg-gray);
  /* Light gray for odd rows */
}

.topics-list__item:nth-child(even) {
  background: #FFF;
  /* White for even rows */
}

.topics-list__link {
  /*padding: 14px 16px;*/
  color: var(--color-link);
  transition: opacity 0.2s;
}

.topics-list__link:hover {
  opacity: 0.6;
}

.topics-list__date {
  display: inline-block;
  padding: 14px 16px;
  font-family: var(--font-en);
  font-size: 0.875em;
  font-weight: 500;
  color: var(--color-text);
  width: 100px;
  flex-shrink: 0;
}

.topics-list__text {
  display: inline-block;
  font-size: 0.875em;
  line-height: 1.6;
  padding: 14px 16px;
  /*color: var(--color-link);*/
}

/* =====================
   Overview (Date / Venue / Format)
   ===================== */
.overview-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
}

.overview-table th {
  width: 120px;
  text-align: left;
  vertical-align: top;
  padding: 12px 16px;
  font-size: 0.875em;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-bg-gray);
  border-bottom: 1px solid var(--color-border);
}

.overview-table td {
  padding: 12px 16px;
  font-size: 1em;
  border-bottom: 1px solid var(--color-border);
  line-height: 1.7;
}

.overview-table a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* 概要セクション用の箇条書き（日時など） */
.overview-list {
  margin: 0;
  padding-left: 1.5em;
  list-style-type: disc;
  color: var(--color-text);
  line-height: 1.8;
}

.overview-list li {
  margin-bottom: 0.35em;
}

/* ● の色のみサイトの緑（本文の文字色はそのまま） */
.overview-list li::marker {
  color: var(--color-primary);
}

.overview-list li:last-child {
  margin-bottom: 0;
}

/* 会場セクション */
.venue-info {
  max-width: 100%;
}

.venue-info__name {
  margin: 0 0 0.35em;
  font-size: 1.0625em;
  font-weight: 700;
  color: var(--color-primary);
}

.venue-info__address {
  margin: 0 0 1em;
  font-size: 0.9375em;
  color: var(--color-text-light);
  line-height: 1.7;
}

.venue-info__links {
  margin: 0 0 1.25em;
}

.venue-info__links>p {
  margin: 0 0 0.65em;
}

.venue-info__links>p:last-child {
  margin-bottom: 0;
}

.venue-info__links a {
  text-decoration: underline;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.venue-info__links a:hover {
  opacity: 0.85;
}

.venue-info__extra {
  margin: 0;
  padding-top: 1.1em;
  border-top: 1px solid var(--color-border);
}

.venue-info__extra p {
  margin-block: 0.5em;
  font-size: 1em;
  line-height: 1.8;
}

.venue-info__extra p:first-of-type {
  margin-block-start: 0;
}

.venue-info__extra p:last-of-type {
  margin-block-end: 0;
}


/* =====================
   Fee Table
   ===================== */
.fee-table-wrap {
  overflow-x: auto;
  margin-bottom: 16px;
  -webkit-overflow-scrolling: touch;
}

.fee-table-wrap .fee-table {
  margin-bottom: 0;
  min-width: 520px;
}

.fee-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
}

.fee-table thead th {
  background: var(--color-primary);
  color: #FFF;
  font-size: 0.8125em;
  font-weight: 600;
  padding: 10px 14px;
  text-align: center;
  border-right: 1px solid var(--color-primary-light);
  line-height: 1.35;
  vertical-align: middle;
}

.fee-table thead th:first-child {
  min-width: 7.5em;
}

.fee-table thead th:last-child {
  border-right: none;
}

.fee-table tbody td {
  padding: 10px 14px;
  text-align: center;
  font-size: 0.875em;
  border-bottom: 1px solid var(--color-border);
  line-height: 1.45;
  vertical-align: middle;
}

.fee-table tbody tr:nth-child(even) {
  background: var(--color-bg-gray);
}

.fee-table tbody td:first-child {
  font-weight: 600;
  text-align: left;
  color: var(--color-primary);
}

.fee-table__tax {
  display: block;
  margin-top: 2px;
  font-size: 0.8125em;
  font-weight: 400;
  color: var(--color-text-light);
}

/* =====================
   Program
   ===================== */
.pgm-day {
  margin-bottom: 40px;
}

.pgm-day__heading {
  background: var(--color-primary);
  color: #FFF;
  padding: 8px 18px;
  font-size: 0.9375em;
  font-weight: 600;
  display: inline-block;
  margin-bottom: 16px;
  border-radius: 3px;
}

.pgm-timetable {
  width: 100%;
  border-collapse: collapse;
}

.pgm-timetable th,
.pgm-timetable td {
  padding: 10px 14px;
  font-size: 1em;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.pgm-timetable th {
  width: 130px;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-bg-gray);
  text-align: left;
  white-space: nowrap;
  font-family: var(--font-en);
  font-size: 0.8125em;
}

.pgm-timetable td .pgm-label {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}

.pgm-timetable td .pgm-speaker {
  font-size: 1em;
  color: var(--color-text);
  font-weight: 700;
}

.pgm-timetable td .pgm-introduction {
  font-size: 0.8125em;
  /* font-style: italic; */
}

.pgm-notice {
  margin-top: 20px;
  padding: 14px 18px;
  background: rgba(201, 168, 76, 0.08);
  border-left: 4px solid var(--color-accent);
  font-size: 0.8125em;
  color: var(--color-text-light);
  border-radius: 0 4px 4px 0;
}

/* =====================
   Speakers
   ===================== */
.speaker-list {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.speaker-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--color-bg-gray);
  padding: 20px;
  border-radius: 6px;
  width: calc(50% - 12px);
}

.speaker-item__photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: #DDD;
}

.speaker-item__info {
  flex: 1;
}

.speaker-item__name {
  font-size: 0.9375em;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 2px;
}

.speaker-item__affiliation {
  font-size: 0.8125em;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-bottom: 6px;
}

.speaker-item__topic {
  font-size: 0.8125em;
  color: var(--color-text);
  font-weight: 500;
  padding-top: 6px;
  border-top: 1px solid var(--color-border);
}

/* =====================
   Exhibition
   ===================== */
.exhibition-text {
  font-size: 0.875em;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 20px;
}

.btn-link {
  display: inline-block;
  padding: 10px 28px;
  background: var(--color-primary);
  color: #FFF;
  font-size: 0.875em;
  font-weight: 600;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.btn-link:hover {
  background: var(--color-primary-light);
  opacity: 1;
  color: #FFF;
}

.btn-link--accent {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}

.btn-link--accent:hover {
  background: var(--color-accent-light);
  color: var(--color-primary-dark);
}

/* =====================
   Sponsors Layout
   ===================== */
.sponsor-category {
  margin-bottom: 40px;
}

.sponsor-category__title {
  font-size: 0.875em;
  font-weight: 500;
  color: var(--color-primary-light);
  margin-bottom: 20px;
}

.sponsor-list,
.sponsor-list--student {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.sponsor-list--silver {
  flex-direction: row;
  flex-wrap: wrap;
  gap: 30px;
  justify-content: space-between;
}

.sponsor-card {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.sponsor-list--silver .sponsor-card {
  width: calc(50% - 15px);
}

.sponsor-card__logo {
  flex-shrink: 0;
  width: 200px;
  text-align: center;
}

.sponsor-card__logo img {
  max-width: 100%;
  height: auto;
  margin-bottom: 8px;
}

.sponsor-card__name {
  display: block;
  font-size: 0.8125em;
  font-weight: bold;
  color: #0066cc;
  /* using blue as requested/in image */
}

.sponsor-list--silver .sponsor-card__logo {
  width: 140px;
}

.sponsor-list--diamond .sponsor-card__logo {
  width: 300px;
}

.sponsor-card__text {
  font-size: 0.8125em;
  line-height: 1.7;
  color: var(--color-text);
  flex-grow: 1;
}

.sponsor-card__text p {
  margin: 0;
}

/* =====================
   Supporter & Contact
   ===================== */
.supporter-list {
  margin: 0 0 40px;
  padding: 0;
  list-style: none;
}

.supporter-list li {
  margin-bottom: 8px;
  font-size: 1em;
}

.supporter-list a {
  color: #0066cc;
}

.supporter-list a:hover {
  text-decoration: underline;
}

/* =====================
   Registration CTA
   ===================== */
.reg-box {
  text-align: center;
  padding: 20px 0;
}

.reg-box p {
  font-size: 0.875em;
  line-height: 1.8;
  margin: 0 0 20px;
}

.sec--primary .reg-box p {
  color: rgba(255, 255, 255, 0.85);
}

.reg-box .schedule-note {
  font-weight: 600;
  font-size: 0.9375em;
  margin-bottom: 24px;
}

.sec--primary .reg-box .schedule-note {
  color: var(--color-accent-light);
}

.btn-register {
  display: inline-block;
  padding: 14px 48px;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-size: 1em;
  font-weight: 700;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(201, 168, 76, 0.3);
  transition: all 0.25s;
}

.btn-register:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201, 168, 76, 0.4);
  opacity: 1;
  color: var(--color-primary-dark);
}

/* =====================
   Policy (Accordion)
   ===================== */
.acc {
  margin-bottom: 12px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  background: #FFF;
}

.acc__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 14px 20px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.9375em;
  font-weight: 600;
  color: var(--color-primary);
  font-family: var(--font-base);
  text-align: left;
  transition: background 0.2s;
}

.acc__trigger:hover {
  background: var(--color-bg-gray);
}

.acc__icon {
  font-size: 1.125em;
  color: var(--color-accent);
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 12px;
}

.acc.is-open .acc__icon {
  transform: rotate(45deg);
}

.acc__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.acc__content {
  padding: 0 20px 18px;
  font-size: 0.8125em;
  line-height: 1.9;
  color: var(--color-text-light);
}

.acc__content p {
  margin: 0 0 8px;
}

/* =====================
   Committee
   ===================== */
.committee-group {
  margin-bottom: 24px;
}

.committee-group__title {
  font-size: 1em;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  padding-left: 12px;
  border-left: 3px solid var(--color-accent);
}

.committee-members {
  /*display: flex;
  flex-wrap: wrap;
  gap: 6px 24px;
  padding-left: 15px;*/
}

.committee-member {
  font-size: 1em;
  color: var(--color-text);
}

.committee-member__aff {
  font-size: 0.8125em;
  color: var(--color-text-light);
}

/* =====================
   Footer
   ===================== */
.g-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.6);
  padding: 32px 0 20px;
}

.g-footer__inner {
  text-align: center;
}

.g-footer__logo {
  font-family: var(--font-en);
  font-size: 1em;
  font-weight: 700;
  color: #FFF;
  margin-bottom: 12px;
}

.g-footer__links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-bottom: 16px;
}

.g-footer__links a {
  font-size: 0.8125em;
  color: rgba(255, 255, 255, 0.5);
}

.g-footer__links a:hover {
  color: var(--color-accent-light);
  opacity: 1;
}

.g-footer__copyright {
  font-size: 0.6875em;
  color: rgba(255, 255, 255, 0.35);
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* =====================
   Page Top
   ===================== */
.pagetop {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 900;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #FFF;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875em;
  box-shadow: 0 2px 8px rgba(0, 118, 76, 0.25);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all 0.3s;
}

.pagetop.is-show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.pagetop:hover {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}

/* =====================
   Fade-in Animation
   ===================== */
.js-fade {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.js-fade.is-show {
  opacity: 1;
  transform: translateY(0);
}

/* =====================
   Responsive
   ===================== */
@media screen and (max-width: 768px) {
  :root {
    --header-h: 56px;
  }

  html {
    scroll-padding-top: calc(var(--header-h) + 40px);
  }

  .toc {
    display: none;
  }

  .header-nav__list.sp-only {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 30px;
    list-style: none;
    padding: 0;
  }

  .header-nav__list a {
    color: #FFF;
    font-size: 0.9375em;
    font-weight: 500;
  }

  .g-header__hamburger {
    display: block;
  }

  .g-header__right {
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: 100%;
    background: var(--color-primary-dark);
    padding: 20px;
    flex-direction: column;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s;
  }

  .g-header__right.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .kv__title {
    font-size: 1.75em;
  }

  .kv__subtitle {
    font-size: 0.875em;
  }

  .speaker-item {
    width: 100%;
  }

  .overview-table th {
    display: block;
    width: 100%;
  }

  .overview-table td {
    display: block;
    padding-left: 16px;
  }

  .pgm-timetable th,
  .pgm-timetable td {
    display: block;
    width: 100%;
  }

  .pgm-timetable th {
    border-bottom: none;
    padding-bottom: 2px;
  }

  .pgm-timetable td {
    padding-top: 0;
  }

  .fee-table {
    font-size: 0.8125em;
  }

  .toc__item a {
    padding: 10px 12px;
    font-size: 0.8125em;
  }

  .sec {
    padding: 40px 0;
  }

  .sec__title {
    font-size: 1.1875em;
  }

  .topics-list__link {
    flex-direction: column;
    gap: 4px;
    padding: 12px 10px;
  }
}